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MWL#192: Non-blocking client API for libmysqlclient. 

All client functions that can block on I/O have alternate _start() and
_cont() versions that do not block but return control back to the
application, which can then issue I/O wait in its own fashion and later
call back into the library to continue the operation.

Works behind the scenes by spawning a co-routine/fiber to run the
blocking operation and suspend it while waiting for I/O. This
co-routine/fiber use is invisible to applications.

For i368/x86_64 on GCC, uses very fast assembler co-routine support. On
Windows uses native Win32 Fibers. Falls back to POSIX ucontext on other
platforms. Assembler routines for more platforms are relatively easy to
add by extending mysys/my_context.c, eg. similar to the Lua lcoco
library.

For testing, mysqltest and mysql_client_test are extended with the
option --non-blocking-api. This causes the programs to use the
non-blocking API for database access. mysql-test-run.pl has a similar
option --non-blocking-api that uses this, as well as additional
testcases.

An example program tests/async_queries.c is included that uses the new
non-blocking API with libevent to show how, in a single-threaded
program, to issue many queries in parallel against a database.


client/async_example.c:
  Fix const warning
  ******
  Fix bug with wrong timeout value for poll().
include/Makefile.am:
  Fix missing include for `make dist`
include/mysql.h:
  Add prototypes for all non-blocking API calls.
include/mysql.h.pp:
  Add prototypes for all non-blocking API calls.
mysys/my_context.c:
  Fix type warning for makecontext() function pointer argument.
sql-common/mysql_async.c:
  Fix crashes in the non-blocking API for functions that can take MYSQL argument
  that is NULL.
tests/Makefile.am:
  Add header file to `make dist`
tests/mysql_client_test.c:
  Replace blocking calls with wrappers around the non-blocking calls, used in
  mysql_client_test to test the new non-blocking API.
tests/nonblock-wrappers.h:
  Replace blocking calls with wrappers around the non-blocking calls, used in
  mysql_client_test to test the new non-blocking API.
parent 1a344b87
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Showing with 4389 additions and 38 deletions
.bzrignore
View file @ a5b88159
......@@ -350,6 +350,7 @@ client/ssl_test
client/thimble
client/thread_test
client/tmp.diff
client/async_example
client_debug/*
client_release/*
client_test
......@@ -681,6 +682,7 @@ libmysqld/unireg.cc
libmysqld/discover_xt.cc
libmysqld/ha_pbxt.cc
libmysqld/myxt_xt.cc
libmysqld/mysql_async.c
libmysqltest/*.ds?
libmysqltest/*.vcproj
libmysqltest/mytest.c
......@@ -1867,6 +1869,7 @@ tests/bug25714
tests/client_test
tests/connect_test
tests/mysql_client_test
tests/async_queries
thr_insert_test/*
thr_test/*
thread_test
......@@ -1952,6 +1955,7 @@ client/sql_list.cc
client/sql_list.h
libmysqld/client_plugin.c
sql/client_plugin.c
sql/mysql_async.c
*.dgcov
libmysqld/create_options.cc
storage/pbxt/bin/xtstat
......
client/CMakeLists.txt
View file @ a5b88159
......@@ -68,5 +68,8 @@ MYSQL_ADD_EXECUTABLE(mysqlslap mysqlslap.c DESTINATION bin)
SET_SOURCE_FILES_PROPERTIES(mysqlslap.c PROPERTIES COMPILE_FLAGS "-DTHREADS")
TARGET_LINK_LIBRARIES(mysqlslap mysqlclient mysys zlib wsock32 dbug)
MYSQL_ADD_EXECUTABLE(async_example async_example.c)
TARGET_LINK_LIBRARIES(async_example mysqlclient mysys zlib wsock32 dbug)
MYSQL_ADD_EXECUTABLE(echo echo.c COMPONENT Test)
client/Makefile.am
View file @ a5b88159
......@@ -51,6 +51,8 @@ bin_PROGRAMS = mysql \
mysqltest \
mysql_upgrade
noinst_PROGRAMS = async_example
mysql_SOURCES = mysql.cc readline.cc sql_string.cc \
completion_hash.cc
mysql_LDADD = @readline_link@ @TERMCAP_LIB@ \
......@@ -96,6 +98,11 @@ mysqltest_LDADD = $(CXXLDFLAGS) $(CLIENT_THREAD_LIBS) \
mysql_upgrade_SOURCES= mysql_upgrade.c \
$(top_srcdir)/mysys/my_getpagesize.c
async_example_SOURCES= async_example.c
async_example_LDADD = $(CXXLDFLAGS) $(CLIENT_THREAD_LIBS) \
@CLIENT_EXTRA_LDFLAGS@ \
$(LIBMYSQLCLIENT_LA)
# Fix for mit-threads
DEFS = -DMYSQL_CLIENT_NO_THREADS \
-DDEFAULT_MYSQL_HOME='"$(prefix)"' \
......
client/async_example.c 0 → 100644
View file @ a5b88159
/*
Copyright 2011 Kristian Nielsen and Monty Program Ab.
Experiments with non-blocking libmysql.
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __WIN__
#include <poll.h>
#else
#include <WinSock2.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <mysql.h>
#define SL(s) (s), sizeof(s)
static const char *my_groups[]= { "client", NULL };
static int
wait_for_mysql(MYSQL *mysql, int status)
{
#ifdef __WIN__
fd_set rs, ws, es;
int res;
struct timeval tv, *timeout;
my_socket s= mysql_get_socket(mysql);
FD_ZERO(&rs);
FD_ZERO(&ws);
FD_ZERO(&es);
if (status & MYSQL_WAIT_READ)
FD_SET(s, &rs);
if (status & MYSQL_WAIT_WRITE)
FD_SET(s, &ws);
if (status & MYSQL_WAIT_EXCEPT)
FD_SET(s, &es);
if (status & MYSQL_WAIT_TIMEOUT)
{
tv.tv_sec= mysql_get_timeout_value(mysql);
tv.tv_usec= 0;
timeout= &tv;
}
else
timeout= NULL;
res= select(1, &rs, &ws, &es, timeout);
if (res == 0)
return MYSQL_WAIT_TIMEOUT;
else if (res == SOCKET_ERROR)
{
/*
In a real event framework, we should handle errors and re-try the select.
*/
return MYSQL_WAIT_TIMEOUT;
}
else
{
int status= 0;
if (FD_ISSET(s, &rs))
status|= MYSQL_WAIT_READ;
if (FD_ISSET(s, &ws))
status|= MYSQL_WAIT_WRITE;
if (FD_ISSET(s, &es))
status|= MYSQL_WAIT_EXCEPT;
return status;
}
#else
struct pollfd pfd;
int timeout;
int res;
pfd.fd= mysql_get_socket(mysql);
pfd.events=
(status & MYSQL_WAIT_READ ? POLLIN : 0) |
(status & MYSQL_WAIT_WRITE ? POLLOUT : 0) |
(status & MYSQL_WAIT_EXCEPT ? POLLPRI : 0);
if (status & MYSQL_WAIT_TIMEOUT)
timeout= 1000*mysql_get_timeout_value(mysql);
else
timeout= -1;
res= poll(&pfd, 1, timeout);
if (res == 0)
return MYSQL_WAIT_TIMEOUT;
else if (res < 0)
{
/*
In a real event framework, we should handle EINTR and re-try the poll.
*/
return MYSQL_WAIT_TIMEOUT;
}
else
{
int status= 0;
if (pfd.revents & POLLIN)
status|= MYSQL_WAIT_READ;
if (pfd.revents & POLLOUT)
status|= MYSQL_WAIT_WRITE;
if (pfd.revents & POLLPRI)
status|= MYSQL_WAIT_EXCEPT;
return status;
}
#endif
}
static void
fatal(MYSQL *mysql, const char *msg)
{
fprintf(stderr, "%s: %s\n", msg, mysql_error(mysql));
exit(1);
}
static void
doit(const char *host, const char *user, const char *password)
{
int err;
MYSQL mysql, *ret;
MYSQL_RES *res;
MYSQL_ROW row;
int status;
mysql_init(&mysql);
mysql_options(&mysql, MYSQL_READ_DEFAULT_GROUP, "myapp");
/* Returns 0 when done, else flag for what to wait for when need to block. */
status= mysql_real_connect_start(&ret, &mysql, host, user, password, NULL,
0, NULL, 0);
while (status)
{
status= wait_for_mysql(&mysql, status);
status= mysql_real_connect_cont(&ret, &mysql, status);
}
if (!ret)
fatal(&mysql, "Failed to mysql_real_connect()");
status= mysql_real_query_start(&err, &mysql, SL("SHOW STATUS"));
while (status)
{
status= wait_for_mysql(&mysql, status);
status= mysql_real_query_cont(&err, &mysql, status);
}
if (err)
fatal(&mysql, "mysql_real_query() returns error");
/* This method cannot block. */
res= mysql_use_result(&mysql);
if (!res)
fatal(&mysql, "mysql_use_result() returns error");
for (;;)
{
status= mysql_fetch_row_start(&row, res);
while (status)
{
status= wait_for_mysql(&mysql, status);
status= mysql_fetch_row_cont(&row, res, status);
}
if (!row)
break;
printf("%s: %s\n", row[0], row[1]);
}
if (mysql_errno(&mysql))
fatal(&mysql, "Got error while retrieving rows");
mysql_free_result(res);
/* I suppose this must be non-blocking too. */
mysql_close(&mysql);
}
int
main(int argc, char *argv[])
{
int err;
if (argc != 4)
{
fprintf(stderr, "Usage: %s <host> <user> <password>\n", argv[0]);
exit(1);
}
err= mysql_library_init(argc, argv, (char **)my_groups);
if (err)
{
fprintf(stderr, "Fatal: mysql_library_init() returns error: %d\n", err);
exit(1);
}
doit(argv[1], argv[2], argv[3]);
mysql_library_end();
return 0;
}
client/mysqltest.cc
View file @ a5b88159
......@@ -60,6 +60,12 @@
#define SIGNAL_FMT "signal %d"
#endif
static my_bool non_blocking_api_enabled= 0;
#if !defined(EMBEDDED_LIBRARY)
#define WRAP_NONBLOCK_ENABLED non_blocking_api_enabled
#include "../tests/nonblock-wrappers.h"
#endif
/* Use cygwin for --exec and --system before 5.0 */
#if MYSQL_VERSION_ID < 50000
#define USE_CYGWIN
......@@ -84,7 +90,7 @@ enum {
OPT_PS_PROTOCOL, OPT_SP_PROTOCOL, OPT_CURSOR_PROTOCOL, OPT_VIEW_PROTOCOL,
OPT_MAX_CONNECT_RETRIES, OPT_MAX_CONNECTIONS,
OPT_MARK_PROGRESS, OPT_LOG_DIR, OPT_TAIL_LINES,
OPT_GLOBAL_SUBST, OPT_MY_CONNECT_TIMEOUT
OPT_GLOBAL_SUBST, OPT_MY_CONNECT_TIMEOUT, OPT_NON_BLOCKING_API
};
static int record= 0, opt_sleep= -1;
......@@ -305,6 +311,7 @@ enum enum_commands {
Q_LOWERCASE,
Q_START_TIMER, Q_END_TIMER,
Q_CHARACTER_SET, Q_DISABLE_PS_PROTOCOL, Q_ENABLE_PS_PROTOCOL,
Q_ENABLE_NON_BLOCKING_API, Q_DISABLE_NON_BLOCKING_API,
Q_DISABLE_RECONNECT, Q_ENABLE_RECONNECT,
Q_IF,
Q_DISABLE_PARSING, Q_ENABLE_PARSING,
......@@ -386,6 +393,8 @@ const char *command_names[]=
"character_set",
"disable_ps_protocol",
"enable_ps_protocol",
"enable_non_blocking_api",
"disable_non_blocking_api",
"disable_reconnect",
"enable_reconnect",
"if",
......@@ -5235,7 +5244,10 @@ void do_connect(struct st_command *command)
int con_port= opt_port;
char *con_options;
my_bool con_ssl= 0, con_compress= 0;
my_bool con_pipe= 0, con_shm= 0;
my_bool con_pipe= 0;
#ifdef HAVE_SMEM
my_bool con_shm= 0;
#endif
struct st_connection* con_slot;
static DYNAMIC_STRING ds_connection_name;
......@@ -5324,7 +5336,11 @@ void do_connect(struct st_command *command)
else if (length == 4 && !strncmp(con_options, "PIPE", 4))
con_pipe= 1;
else if (length == 3 && !strncmp(con_options, "SHM", 3))
#ifdef HAVE_SMEM
con_shm= 1;
#else
{ }
#endif
else
die("Illegal option to connect: %.*s",
(int) (end - con_options), con_options);
......@@ -6146,6 +6162,10 @@ static struct my_option my_long_options[] =
"Use prepared-statement protocol for communication.",
&ps_protocol, &ps_protocol, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"non-blocking-api", OPT_NON_BLOCKING_API,
"Use the non-blocking client API for communication.",
&non_blocking_api_enabled, &non_blocking_api_enabled, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"quiet", 's', "Suppress all normal output.", &silent,
&silent, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"record", 'r', "Record output of test_file into result file.",
......@@ -8130,6 +8150,7 @@ int main(int argc, char **argv)
next_con= connections + 1;
var_set_int("$PS_PROTOCOL", ps_protocol);
var_set_int("$NON_BLOCKING_API", non_blocking_api_enabled);
var_set_int("$SP_PROTOCOL", sp_protocol);
var_set_int("$VIEW_PROTOCOL", view_protocol);
var_set_int("$CURSOR_PROTOCOL", cursor_protocol);
......@@ -8538,6 +8559,12 @@ int main(int argc, char **argv)
case Q_ENABLE_PS_PROTOCOL:
ps_protocol_enabled= ps_protocol;
break;
case Q_DISABLE_NON_BLOCKING_API:
non_blocking_api_enabled= 0;
break;
case Q_ENABLE_NON_BLOCKING_API:
non_blocking_api_enabled= 1;
break;
case Q_DISABLE_RECONNECT:
set_reconnect(cur_con->mysql, 0);
break;
......
dbug/dbug.c
View file @ a5b88159
......@@ -404,6 +404,27 @@ static CODE_STATE *code_state(void)
return cs;
}
void
dbug_swap_code_state(void **code_state_store)
{
CODE_STATE *cs, **cs_ptr;
if (!(cs_ptr= (CODE_STATE**) my_thread_var_dbug()))
return;
cs= *cs_ptr;
*cs_ptr= *code_state_store;
*code_state_store= cs;
}
void dbug_free_code_state(void **code_state_store)
{
if (*code_state_store)
{
free(*code_state_store);
*code_state_store= NULL;
}
}
#else /* !THREAD */
static CODE_STATE static_code_state=
......@@ -424,6 +445,35 @@ static CODE_STATE *code_state(void)
return &static_code_state;
}
void
dbug_swap_code_state(void **code_state_store)
{
CODE_STATE temp, *cs;
if (!(cs= *code_state_store))
{
cs= (CODE_STATE *)DbugMalloc(sizeof(*cs));
cs->process= db_process ? db_process : "dbug";
cs->func="?func";
cs->file="?file";
cs->stack=&init_settings;
*code_state_store= cs;
}
memcpy(&temp, cs, sizeof(*cs));
memcpy(cs, &static_code_state, sizeof(*cs));
memcpy(&static_code_state, &temp, sizeof(*cs));
}
void
dbug_free_code_state(void **code_state_store)
{
if (*code_state_store)
{
free(*code_state_store);
*code_state_store= NULL;
}
}
#define pthread_mutex_lock(A) {}
#define pthread_mutex_unlock(A) {}
#endif
......
include/Makefile.am
View file @ a5b88159
......@@ -46,7 +46,7 @@ noinst_HEADERS = config-win.h config-netware.h lf.h my_bit.h \
atomic/rwlock.h atomic/x86-gcc.h \
atomic/generic-msvc.h \
atomic/gcc_builtins.h my_libwrap.h my_stacktrace.h \
wqueue.h waiting_threads.h
wqueue.h waiting_threads.h my_context.h
EXTRA_DIST = mysql.h.pp mysql/plugin_auth.h.pp mysql/client_plugin.h.pp CMakeLists.txt
......
include/my_context.h 0 → 100644
View file @ a5b88159
/*
Copyright 2011 Kristian Nielsen
Experiments with non-blocking libmysql.
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Simple API for spawning a co-routine, to be used for async libmysqlclient.
Idea is that by implementing this interface using whatever facilities are
available for given platform, we can use the same code for the generic
libmysqlclient-async code.
(This particular implementation uses Posix ucontext swapcontext().)
*/
#ifdef __WIN__
#define MY_CONTEXT_USE_WIN32_FIBERS 1
#elif defined(__GNUC__) && __GNUC__ >= 3 && defined(__x86_64__)
#define MY_CONTEXT_USE_X86_64_GCC_ASM
#elif defined(__GNUC__) && __GNUC__ >= 3 && defined(__i386__)
#define MY_CONTEXT_USE_I386_GCC_ASM
#else
#define MY_CONTEXT_USE_UCONTEXT
#endif
#ifdef MY_CONTEXT_USE_WIN32_FIBERS
struct my_context {
void (*user_func)(void *);
void *user_arg;
void *app_fiber;
void *lib_fiber;
int return_value;
#ifndef DBUG_OFF
void *dbug_state;
#endif
};
#endif
#ifdef MY_CONTEXT_USE_UCONTEXT
#include <ucontext.h>
struct my_context {
void (*user_func)(void *);
void *user_data;
void *stack;
size_t stack_size;
ucontext_t base_context;
ucontext_t spawned_context;
int active;
#ifdef HAVE_VALGRIND_VALGRIND_H
unsigned int valgrind_stack_id;
#endif
#ifndef DBUG_OFF
void *dbug_state;
#endif
};
#endif
#ifdef MY_CONTEXT_USE_X86_64_GCC_ASM
#include <stdint.h>
struct my_context {
uint64_t save[9];
void *stack_top;
void *stack_bot;
#ifdef HAVE_VALGRIND_VALGRIND_H
unsigned int valgrind_stack_id;
#endif
#ifndef DBUG_OFF
void *dbug_state;
#endif
};
#endif
#ifdef MY_CONTEXT_USE_I386_GCC_ASM
#include <stdint.h>
struct my_context {
uint64_t save[7];
void *stack_top;
void *stack_bot;
#ifdef HAVE_VALGRIND_VALGRIND_H
unsigned int valgrind_stack_id;
#endif
#ifndef DBUG_OFF
void *dbug_state;
#endif
};
#endif
/*
Initialize an asynchroneous context object.
Returns 0 on success, non-zero on failure.
*/
extern int my_context_init(struct my_context *c, size_t stack_size);
/* Free an asynchroneous context object, deallocating any resources used. */
extern void my_context_destroy(struct my_context *c);
/*
Spawn an asynchroneous context. The context will run the supplied user
function, passing the supplied user data pointer.
The context must have been initialised with my_context_init() prior to
this call.
The user function may call my_context_yield(), which will cause this
function to return 1. Then later my_context_continue() may be called, which
will resume the asynchroneous context by returning from the previous
my_context_yield() call.
When the user function returns, this function returns 0.
In case of error, -1 is returned.
*/
extern int my_context_spawn(struct my_context *c, void (*f)(void *), void *d);
/*
Suspend an asynchroneous context started with my_context_spawn.
When my_context_yield() is called, execution immediately returns from the
last my_context_spawn() or my_context_continue() call. Then when later
my_context_continue() is called, execution resumes by returning from this
my_context_yield() call.
Returns 0 if ok, -1 in case of error.
*/
extern int my_context_yield(struct my_context *c);
/*
Resume an asynchroneous context. The context was spawned by
my_context_spawn(), and later suspended inside my_context_yield().
The asynchroneous context may be repeatedly suspended with
my_context_yield() and resumed with my_context_continue().
Each time it is suspended, this function returns 1. When the originally
spawned user function returns, this function returns 0.
In case of error, -1 is returned.
*/
extern int my_context_continue(struct my_context *c);
struct mysql_async_context {
/*
This is set to the value that should be returned from foo_start() or
foo_cont() when a call is suspended.
It is also set to the event(s) that triggered when a suspended call is
resumed, eg. whether we woke up due to connection completed or timeout
in mysql_real_connect_cont().
*/
unsigned int ret_status;
/*
This is set to the result of the whole asynchronous operation when it
completes. It uses a union, as different calls have different return
types.
*/
union {
void *r_ptr;
const void *r_const_ptr;
int r_int;
my_bool r_my_bool;
} ret_result;
/*
The timeout value, for suspended calls that need to wake up on a timeout
(eg. mysql_real_connect_start().
*/
unsigned int timeout_value;
/*
This flag is set when we are executing inside some asynchronous call
foo_start() or foo_cont(). It is used to decide whether to use the
synchronous or asynchronous version of calls that may block such as
recv().
Note that this flag is not set when a call is suspended, eg. after
returning from foo_start() and before re-entering foo_cont().
*/
my_bool active;
/*
This flag is set when an asynchronous operation is in progress, but
suspended. Ie. it is set when foo_start() or foo_cont() returns because
the operation needs to block, suspending the operation.
It is used to give an error (rather than crash) if the application
attempts to call some foo_cont() method when no suspended operation foo is
in progress.
*/
my_bool suspended;
/*
If non-NULL, this is a pointer to a callback hook that will be invoked with
the user data argument just before the context is suspended, and just after
it is resumed.
*/
void (*suspend_resume_hook)(my_bool suspend, void *user_data);
void *suspend_resume_hook_user_data;
/*
This is used to save the execution contexts so that we can suspend an
operation and switch back to the application context, to resume the
suspended context later when the application re-invokes us with
foo_cont().
*/
struct my_context async_context;
};
include/my_dbug.h
View file @ a5b88159
......@@ -83,6 +83,8 @@ extern void _db_lock_file_(void);
extern void _db_unlock_file_(void);
extern FILE *_db_fp_(void);
extern void _db_flush_();
extern void dbug_swap_code_state(void **code_state_store);
extern void dbug_free_code_state(void **code_state_store);
#ifdef __cplusplus
......
include/mysql.h
View file @ a5b88159
......@@ -264,6 +264,8 @@ typedef struct character_set
struct st_mysql_methods;
struct st_mysql_stmt;
struct st_mysql_extension;
typedef struct st_mysql
{
NET net; /* Communication parameters */
......@@ -318,7 +320,7 @@ typedef struct st_mysql
my_bool *unbuffered_fetch_owner;
/* needed for embedded server - no net buffer to store the 'info' */
char *info_buffer;
void *extension;
struct st_mysql_extension *extension;
} MYSQL;
......@@ -376,6 +378,19 @@ typedef struct st_mysql_parameters
void *extension;
} MYSQL_PARAMETERS;
/*
Flag bits, the asynchronous methods return a combination of these ORed
together to let the application know when to resume the suspended operation.
*/
typedef enum {
MYSQL_WAIT_READ= 1, /* Wait for data to be available on socket to read */
/* mysql_get_socket_fd() will return socket descriptor*/
MYSQL_WAIT_WRITE= 2, /* Wait for socket to be ready to write data */
MYSQL_WAIT_EXCEPT= 4, /* Wait for select() to mark exception on socket */
MYSQL_WAIT_TIMEOUT= 8 /* Wait until timeout occurs. Value of timeout can be */
/* obtained from mysql_get_timeout_value() */
} MYSQL_ASYNC_STATUS;
#if !defined(MYSQL_SERVER) && !defined(EMBEDDED_LIBRARY)
#define max_allowed_packet (*mysql_get_parameters()->p_max_allowed_packet)
#define net_buffer_length (*mysql_get_parameters()->p_net_buffer_length)
......@@ -437,6 +452,10 @@ const char * STDCALL mysql_info(MYSQL *mysql);
unsigned long STDCALL mysql_thread_id(MYSQL *mysql);
const char * STDCALL mysql_character_set_name(MYSQL *mysql);
int STDCALL mysql_set_character_set(MYSQL *mysql, const char *csname);
int STDCALL mysql_set_character_set_start(int *ret, MYSQL *mysql,
const char *csname);
int STDCALL mysql_set_character_set_cont(int *ret, MYSQL *mysql,
int status);
MYSQL * STDCALL mysql_init(MYSQL *mysql);
my_bool STDCALL mysql_ssl_set(MYSQL *mysql, const char *key,
......@@ -445,6 +464,12 @@ my_bool STDCALL mysql_ssl_set(MYSQL *mysql, const char *key,
const char * STDCALL mysql_get_ssl_cipher(MYSQL *mysql);
my_bool STDCALL mysql_change_user(MYSQL *mysql, const char *user,
const char *passwd, const char *db);
int STDCALL mysql_change_user_start(my_bool *ret, MYSQL *mysql,
const char *user,
const char *passwd,
const char *db);
int STDCALL mysql_change_user_cont(my_bool *ret, MYSQL *mysql,
int status);
MYSQL * STDCALL mysql_real_connect(MYSQL *mysql, const char *host,
const char *user,
const char *passwd,
......@@ -452,13 +477,44 @@ MYSQL * STDCALL mysql_real_connect(MYSQL *mysql, const char *host,
unsigned int port,
const char *unix_socket,
unsigned long clientflag);
int STDCALL mysql_real_connect_start(MYSQL **ret, MYSQL *mysql,
const char *host,
const char *user,
const char *passwd,
const char *db,
unsigned int port,
const char *unix_socket,
unsigned long clientflag);
int STDCALL mysql_real_connect_cont(MYSQL **ret, MYSQL *mysql,
int status);
int STDCALL mysql_select_db(MYSQL *mysql, const char *db);
int STDCALL mysql_select_db_start(int *ret, MYSQL *mysql,
const char *db);
int STDCALL mysql_select_db_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_query(MYSQL *mysql, const char *q);
int STDCALL mysql_query_start(int *ret, MYSQL *mysql,
const char *q);
int STDCALL mysql_query_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_send_query(MYSQL *mysql, const char *q,
unsigned long length);
int STDCALL mysql_send_query_start(int *ret, MYSQL *mysql,
const char *q,
unsigned long length);
int STDCALL mysql_send_query_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_real_query(MYSQL *mysql, const char *q,
unsigned long length);
int STDCALL mysql_real_query_start(int *ret, MYSQL *mysql,
const char *q,
unsigned long length);
int STDCALL mysql_real_query_cont(int *ret, MYSQL *mysql,
int status);
MYSQL_RES * STDCALL mysql_store_result(MYSQL *mysql);
int STDCALL mysql_store_result_start(MYSQL_RES **ret, MYSQL *mysql);
int STDCALL mysql_store_result_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * STDCALL mysql_use_result(MYSQL *mysql);
/* perform query on master */
......@@ -526,15 +582,39 @@ int STDCALL mysql_add_slave(MYSQL* mysql, const char* host,
int STDCALL mysql_shutdown(MYSQL *mysql,
enum mysql_enum_shutdown_level
shutdown_level);
int STDCALL mysql_shutdown_start(int *ret, MYSQL *mysql,
enum mysql_enum_shutdown_level
shutdown_level);
int STDCALL mysql_shutdown_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_dump_debug_info(MYSQL *mysql);
int STDCALL mysql_dump_debug_info_start(int *ret, MYSQL *mysql);
int STDCALL mysql_dump_debug_info_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_refresh(MYSQL *mysql,
unsigned int refresh_options);
int STDCALL mysql_refresh_start(int *ret, MYSQL *mysql,
unsigned int refresh_options);
int STDCALL mysql_refresh_cont(int *ret, MYSQL *mysql, int status);
int STDCALL mysql_kill(MYSQL *mysql,unsigned long pid);
int STDCALL mysql_kill_start(int *ret, MYSQL *mysql,
unsigned long pid);
int STDCALL mysql_kill_cont(int *ret, MYSQL *mysql, int status);
int STDCALL mysql_set_server_option(MYSQL *mysql,
enum enum_mysql_set_option
option);
int STDCALL mysql_set_server_option_start(int *ret, MYSQL *mysql,
enum enum_mysql_set_option
option);
int STDCALL mysql_set_server_option_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_ping(MYSQL *mysql);
int STDCALL mysql_ping_start(int *ret, MYSQL *mysql);
int STDCALL mysql_ping_cont(int *ret, MYSQL *mysql, int status);
const char * STDCALL mysql_stat(MYSQL *mysql);
int STDCALL mysql_stat_start(const char **ret, MYSQL *mysql);
int STDCALL mysql_stat_cont(const char **ret, MYSQL *mysql,
int status);
const char * STDCALL mysql_get_server_info(MYSQL *mysql);
const char * STDCALL mysql_get_server_name(MYSQL *mysql);
const char * STDCALL mysql_get_client_info(void);
......@@ -543,11 +623,25 @@ const char * STDCALL mysql_get_host_info(MYSQL *mysql);
unsigned long STDCALL mysql_get_server_version(MYSQL *mysql);
unsigned int STDCALL mysql_get_proto_info(MYSQL *mysql);
MYSQL_RES * STDCALL mysql_list_dbs(MYSQL *mysql,const char *wild);
int STDCALL mysql_list_dbs_start(MYSQL_RES **ret, MYSQL *mysql,
const char *wild);
int STDCALL mysql_list_dbs_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * STDCALL mysql_list_tables(MYSQL *mysql,const char *wild);
int STDCALL mysql_list_tables_start(MYSQL_RES **ret, MYSQL *mysql,
const char *wild);
int STDCALL mysql_list_tables_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * STDCALL mysql_list_processes(MYSQL *mysql);
int STDCALL mysql_list_processes_start(MYSQL_RES **ret,
MYSQL *mysql);
int STDCALL mysql_list_processes_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
int STDCALL mysql_options(MYSQL *mysql,enum mysql_option option,
const void *arg);
void STDCALL mysql_free_result(MYSQL_RES *result);
int STDCALL mysql_free_result_start(MYSQL_RES *result);
int STDCALL mysql_free_result_cont(MYSQL_RES *result, int status);
void STDCALL mysql_data_seek(MYSQL_RES *result,
my_ulonglong offset);
MYSQL_ROW_OFFSET STDCALL mysql_row_seek(MYSQL_RES *result,
......@@ -555,10 +649,19 @@ MYSQL_ROW_OFFSET STDCALL mysql_row_seek(MYSQL_RES *result,
MYSQL_FIELD_OFFSET STDCALL mysql_field_seek(MYSQL_RES *result,
MYSQL_FIELD_OFFSET offset);
MYSQL_ROW STDCALL mysql_fetch_row(MYSQL_RES *result);
int STDCALL mysql_fetch_row_start(MYSQL_ROW *ret,
MYSQL_RES *result);
int STDCALL mysql_fetch_row_cont(MYSQL_ROW *ret, MYSQL_RES *result,
int status);
unsigned long * STDCALL mysql_fetch_lengths(MYSQL_RES *result);
MYSQL_FIELD * STDCALL mysql_fetch_field(MYSQL_RES *result);
MYSQL_RES * STDCALL mysql_list_fields(MYSQL *mysql, const char *table,
const char *wild);
int STDCALL mysql_list_fields_start(MYSQL_RES **ret, MYSQL *mysql,
const char *table,
const char *wild);
int STDCALL mysql_list_fields_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
unsigned long STDCALL mysql_escape_string(char *to,const char *from,
unsigned long from_length);
unsigned long STDCALL mysql_hex_string(char *to,const char *from,
......@@ -584,6 +687,10 @@ int STDCALL mysql_manager_fetch_line(MYSQL_MANAGER* con,
char* res_buf,
int res_buf_size);
my_bool STDCALL mysql_read_query_result(MYSQL *mysql);
int STDCALL mysql_read_query_result_start(my_bool *ret,
MYSQL *mysql);
int STDCALL mysql_read_query_result_cont(my_bool *ret,
MYSQL *mysql, int status);
/*
......@@ -760,16 +867,25 @@ enum enum_stmt_attr_type
STMT_ATTR_PREFETCH_ROWS
};
MYSQL_STMT * STDCALL mysql_stmt_init(MYSQL *mysql);
int STDCALL mysql_stmt_prepare(MYSQL_STMT *stmt, const char *query,
unsigned long length);
int STDCALL mysql_stmt_prepare_start(int *ret, MYSQL_STMT *stmt,
const char *query, unsigned long length);
int STDCALL mysql_stmt_prepare_cont(int *ret, MYSQL_STMT *stmt, int status);
int STDCALL mysql_stmt_execute(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_execute_start(int *ret, MYSQL_STMT *stmt);
int STDCALL mysql_stmt_execute_cont(int *ret, MYSQL_STMT *stmt, int status);
int STDCALL mysql_stmt_fetch(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_fetch_start(int *ret, MYSQL_STMT *stmt);
int STDCALL mysql_stmt_fetch_cont(int *ret, MYSQL_STMT *stmt, int status);
int STDCALL mysql_stmt_fetch_column(MYSQL_STMT *stmt, MYSQL_BIND *bind_arg,
unsigned int column,
unsigned long offset);
int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_store_result_start(int *ret, MYSQL_STMT *stmt);
int STDCALL mysql_stmt_store_result_cont(int *ret, MYSQL_STMT *stmt,
int status);
unsigned long STDCALL mysql_stmt_param_count(MYSQL_STMT * stmt);
my_bool STDCALL mysql_stmt_attr_set(MYSQL_STMT *stmt,
enum enum_stmt_attr_type attr_type,
......@@ -780,12 +896,25 @@ my_bool STDCALL mysql_stmt_attr_get(MYSQL_STMT *stmt,
my_bool STDCALL mysql_stmt_bind_param(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool STDCALL mysql_stmt_bind_result(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool STDCALL mysql_stmt_close(MYSQL_STMT * stmt);
int STDCALL mysql_stmt_close_start(my_bool *ret, MYSQL_STMT *stmt);
int STDCALL mysql_stmt_close_cont(my_bool *ret, MYSQL_STMT * stmt, int status);
my_bool STDCALL mysql_stmt_reset(MYSQL_STMT * stmt);
int STDCALL mysql_stmt_reset_start(my_bool *ret, MYSQL_STMT * stmt);
int STDCALL mysql_stmt_reset_cont(my_bool *ret, MYSQL_STMT *stmt, int status);
my_bool STDCALL mysql_stmt_free_result(MYSQL_STMT *stmt);
int STDCALL mysql_stmt_free_result_start(my_bool *ret, MYSQL_STMT *stmt);
int STDCALL mysql_stmt_free_result_cont(my_bool *ret, MYSQL_STMT *stmt,
int status);
my_bool STDCALL mysql_stmt_send_long_data(MYSQL_STMT *stmt,
unsigned int param_number,
const char *data,
unsigned long length);
int STDCALL mysql_stmt_send_long_data_start(my_bool *ret, MYSQL_STMT *stmt,
unsigned int param_number,
const char *data,
unsigned long len);
int STDCALL mysql_stmt_send_long_data_cont(my_bool *ret, MYSQL_STMT *stmt,
int status);
MYSQL_RES *STDCALL mysql_stmt_result_metadata(MYSQL_STMT *stmt);
MYSQL_RES *STDCALL mysql_stmt_param_metadata(MYSQL_STMT *stmt);
unsigned int STDCALL mysql_stmt_errno(MYSQL_STMT * stmt);
......@@ -801,12 +930,24 @@ my_ulonglong STDCALL mysql_stmt_insert_id(MYSQL_STMT *stmt);
unsigned int STDCALL mysql_stmt_field_count(MYSQL_STMT *stmt);
my_bool STDCALL mysql_commit(MYSQL * mysql);
int STDCALL mysql_commit_start(my_bool *ret, MYSQL * mysql);
int STDCALL mysql_commit_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool STDCALL mysql_rollback(MYSQL * mysql);
int STDCALL mysql_rollback_start(my_bool *ret, MYSQL * mysql);
int STDCALL mysql_rollback_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool STDCALL mysql_autocommit(MYSQL * mysql, my_bool auto_mode);
int STDCALL mysql_autocommit_start(my_bool *ret, MYSQL * mysql,
my_bool auto_mode);
int STDCALL mysql_autocommit_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool STDCALL mysql_more_results(MYSQL *mysql);
int STDCALL mysql_next_result(MYSQL *mysql);
int STDCALL mysql_next_result_start(int *ret, MYSQL *mysql);
int STDCALL mysql_next_result_cont(int *ret, MYSQL *mysql, int status);
void STDCALL mysql_close(MYSQL *sock);
int STDCALL mysql_close_start(MYSQL *sock);
int STDCALL mysql_close_cont(MYSQL *sock, int status);
my_socket STDCALL mysql_get_socket(const MYSQL *mysql);
unsigned int STDCALL mysql_get_timeout_value(const MYSQL *mysql);
/* status return codes */
#define MYSQL_NO_DATA 100
......@@ -817,7 +958,20 @@ void STDCALL mysql_close(MYSQL *sock);
#ifdef USE_OLD_FUNCTIONS
MYSQL * STDCALL mysql_connect(MYSQL *mysql, const char *host,
const char *user, const char *passwd);
int STDCALL mysql_connect_start(MYSQL **ret, MYSQL *mysql,
const char *host, const char *user,
const char *passwd);
int STDCALL mysql_connect_cont(MYSQL **ret, MYSQL *mysql,
int status);
int STDCALL mysql_create_db(MYSQL *mysql, const char *DB);
int STDCALL mysql_create_db_start(int *ret, MYSQL *mysql,
const char *DB);
int STDCALL mysql_create_db_cont(int *ret, MYSQL *mysql,
int status);
int STDCALL mysql_drop_db(MYSQL *mysql, const char *DB);
int STDCALL mysql_drop_db_start(int *ret, MYSQL *mysql,
const char *DB);
int STDCALL mysql_drop_db_cont(int *ret, MYSQL *mysql, int status);
int STDCALL mysql_drop_db(MYSQL *mysql, const char *DB);
#define mysql_reload(mysql) mysql_refresh((mysql),REFRESH_GRANT)
#endif
......
include/mysql.h.pp
View file @ a5b88159
......@@ -318,6 +318,7 @@ typedef struct character_set
} MY_CHARSET_INFO;
struct st_mysql_methods;
struct st_mysql_stmt;
struct st_mysql_extension;
typedef struct st_mysql
{
NET net;
......@@ -353,7 +354,7 @@ typedef struct st_mysql
void *thd;
my_bool *unbuffered_fetch_owner;
char *info_buffer;
void *extension;
struct st_mysql_extension *extension;
} MYSQL;
typedef struct st_mysql_res {
my_ulonglong row_count;
......@@ -391,6 +392,12 @@ typedef struct st_mysql_parameters
unsigned long *p_net_buffer_length;
void *extension;
} MYSQL_PARAMETERS;
typedef enum {
MYSQL_WAIT_READ= 1,
MYSQL_WAIT_WRITE= 2,
MYSQL_WAIT_EXCEPT= 4,
MYSQL_WAIT_TIMEOUT= 8
} MYSQL_ASYNC_STATUS;
int mysql_server_init(int argc, char **argv, char **groups);
void mysql_server_end(void);
MYSQL_PARAMETERS * mysql_get_parameters(void);
......@@ -415,6 +422,10 @@ const char * mysql_info(MYSQL *mysql);
unsigned long mysql_thread_id(MYSQL *mysql);
const char * mysql_character_set_name(MYSQL *mysql);
int mysql_set_character_set(MYSQL *mysql, const char *csname);
int mysql_set_character_set_start(int *ret, MYSQL *mysql,
const char *csname);
int mysql_set_character_set_cont(int *ret, MYSQL *mysql,
int status);
MYSQL * mysql_init(MYSQL *mysql);
my_bool mysql_ssl_set(MYSQL *mysql, const char *key,
const char *cert, const char *ca,
......@@ -422,6 +433,12 @@ my_bool mysql_ssl_set(MYSQL *mysql, const char *key,
const char * mysql_get_ssl_cipher(MYSQL *mysql);
my_bool mysql_change_user(MYSQL *mysql, const char *user,
const char *passwd, const char *db);
int mysql_change_user_start(my_bool *ret, MYSQL *mysql,
const char *user,
const char *passwd,
const char *db);
int mysql_change_user_cont(my_bool *ret, MYSQL *mysql,
int status);
MYSQL * mysql_real_connect(MYSQL *mysql, const char *host,
const char *user,
const char *passwd,
......@@ -429,13 +446,44 @@ MYSQL * mysql_real_connect(MYSQL *mysql, const char *host,
unsigned int port,
const char *unix_socket,
unsigned long clientflag);
int mysql_real_connect_start(MYSQL **ret, MYSQL *mysql,
const char *host,
const char *user,
const char *passwd,
const char *db,
unsigned int port,
const char *unix_socket,
unsigned long clientflag);
int mysql_real_connect_cont(MYSQL **ret, MYSQL *mysql,
int status);
int mysql_select_db(MYSQL *mysql, const char *db);
int mysql_select_db_start(int *ret, MYSQL *mysql,
const char *db);
int mysql_select_db_cont(int *ret, MYSQL *mysql,
int status);
int mysql_query(MYSQL *mysql, const char *q);
int mysql_query_start(int *ret, MYSQL *mysql,
const char *q);
int mysql_query_cont(int *ret, MYSQL *mysql,
int status);
int mysql_send_query(MYSQL *mysql, const char *q,
unsigned long length);
int mysql_send_query_start(int *ret, MYSQL *mysql,
const char *q,
unsigned long length);
int mysql_send_query_cont(int *ret, MYSQL *mysql,
int status);
int mysql_real_query(MYSQL *mysql, const char *q,
unsigned long length);
int mysql_real_query_start(int *ret, MYSQL *mysql,
const char *q,
unsigned long length);
int mysql_real_query_cont(int *ret, MYSQL *mysql,
int status);
MYSQL_RES * mysql_store_result(MYSQL *mysql);
int mysql_store_result_start(MYSQL_RES **ret, MYSQL *mysql);
int mysql_store_result_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * mysql_use_result(MYSQL *mysql);
my_bool mysql_master_query(MYSQL *mysql, const char *q,
unsigned long length);
......@@ -478,15 +526,39 @@ int mysql_add_slave(MYSQL* mysql, const char* host,
int mysql_shutdown(MYSQL *mysql,
enum mysql_enum_shutdown_level
shutdown_level);
int mysql_shutdown_start(int *ret, MYSQL *mysql,
enum mysql_enum_shutdown_level
shutdown_level);
int mysql_shutdown_cont(int *ret, MYSQL *mysql,
int status);
int mysql_dump_debug_info(MYSQL *mysql);
int mysql_dump_debug_info_start(int *ret, MYSQL *mysql);
int mysql_dump_debug_info_cont(int *ret, MYSQL *mysql,
int status);
int mysql_refresh(MYSQL *mysql,
unsigned int refresh_options);
int mysql_refresh_start(int *ret, MYSQL *mysql,
unsigned int refresh_options);
int mysql_refresh_cont(int *ret, MYSQL *mysql, int status);
int mysql_kill(MYSQL *mysql,unsigned long pid);
int mysql_kill_start(int *ret, MYSQL *mysql,
unsigned long pid);
int mysql_kill_cont(int *ret, MYSQL *mysql, int status);
int mysql_set_server_option(MYSQL *mysql,
enum enum_mysql_set_option
option);
int mysql_set_server_option_start(int *ret, MYSQL *mysql,
enum enum_mysql_set_option
option);
int mysql_set_server_option_cont(int *ret, MYSQL *mysql,
int status);
int mysql_ping(MYSQL *mysql);
int mysql_ping_start(int *ret, MYSQL *mysql);
int mysql_ping_cont(int *ret, MYSQL *mysql, int status);
const char * mysql_stat(MYSQL *mysql);
int mysql_stat_start(const char **ret, MYSQL *mysql);
int mysql_stat_cont(const char **ret, MYSQL *mysql,
int status);
const char * mysql_get_server_info(MYSQL *mysql);
const char * mysql_get_server_name(MYSQL *mysql);
const char * mysql_get_client_info(void);
......@@ -495,11 +567,25 @@ const char * mysql_get_host_info(MYSQL *mysql);
unsigned long mysql_get_server_version(MYSQL *mysql);
unsigned int mysql_get_proto_info(MYSQL *mysql);
MYSQL_RES * mysql_list_dbs(MYSQL *mysql,const char *wild);
int mysql_list_dbs_start(MYSQL_RES **ret, MYSQL *mysql,
const char *wild);
int mysql_list_dbs_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * mysql_list_tables(MYSQL *mysql,const char *wild);
int mysql_list_tables_start(MYSQL_RES **ret, MYSQL *mysql,
const char *wild);
int mysql_list_tables_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
MYSQL_RES * mysql_list_processes(MYSQL *mysql);
int mysql_list_processes_start(MYSQL_RES **ret,
MYSQL *mysql);
int mysql_list_processes_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
int mysql_options(MYSQL *mysql,enum mysql_option option,
const void *arg);
void mysql_free_result(MYSQL_RES *result);
int mysql_free_result_start(MYSQL_RES *result);
int mysql_free_result_cont(MYSQL_RES *result, int status);
void mysql_data_seek(MYSQL_RES *result,
my_ulonglong offset);
MYSQL_ROW_OFFSET mysql_row_seek(MYSQL_RES *result,
......@@ -507,10 +593,19 @@ MYSQL_ROW_OFFSET mysql_row_seek(MYSQL_RES *result,
MYSQL_FIELD_OFFSET mysql_field_seek(MYSQL_RES *result,
MYSQL_FIELD_OFFSET offset);
MYSQL_ROW mysql_fetch_row(MYSQL_RES *result);
int mysql_fetch_row_start(MYSQL_ROW *ret,
MYSQL_RES *result);
int mysql_fetch_row_cont(MYSQL_ROW *ret, MYSQL_RES *result,
int status);
unsigned long * mysql_fetch_lengths(MYSQL_RES *result);
MYSQL_FIELD * mysql_fetch_field(MYSQL_RES *result);
MYSQL_RES * mysql_list_fields(MYSQL *mysql, const char *table,
const char *wild);
int mysql_list_fields_start(MYSQL_RES **ret, MYSQL *mysql,
const char *table,
const char *wild);
int mysql_list_fields_cont(MYSQL_RES **ret, MYSQL *mysql,
int status);
unsigned long mysql_escape_string(char *to,const char *from,
unsigned long from_length);
unsigned long mysql_hex_string(char *to,const char *from,
......@@ -536,6 +631,10 @@ int mysql_manager_fetch_line(MYSQL_MANAGER* con,
char* res_buf,
int res_buf_size);
my_bool mysql_read_query_result(MYSQL *mysql);
int mysql_read_query_result_start(my_bool *ret,
MYSQL *mysql);
int mysql_read_query_result_cont(my_bool *ret,
MYSQL *mysql, int status);
enum enum_mysql_stmt_state
{
MYSQL_STMT_INIT_DONE= 1, MYSQL_STMT_PREPARE_DONE, MYSQL_STMT_EXECUTE_DONE,
......@@ -605,12 +704,22 @@ enum enum_stmt_attr_type
MYSQL_STMT * mysql_stmt_init(MYSQL *mysql);
int mysql_stmt_prepare(MYSQL_STMT *stmt, const char *query,
unsigned long length);
int mysql_stmt_prepare_start(int *ret, MYSQL_STMT *stmt,
const char *query, unsigned long length);
int mysql_stmt_prepare_cont(int *ret, MYSQL_STMT *stmt, int status);
int mysql_stmt_execute(MYSQL_STMT *stmt);
int mysql_stmt_execute_start(int *ret, MYSQL_STMT *stmt);
int mysql_stmt_execute_cont(int *ret, MYSQL_STMT *stmt, int status);
int mysql_stmt_fetch(MYSQL_STMT *stmt);
int mysql_stmt_fetch_start(int *ret, MYSQL_STMT *stmt);
int mysql_stmt_fetch_cont(int *ret, MYSQL_STMT *stmt, int status);
int mysql_stmt_fetch_column(MYSQL_STMT *stmt, MYSQL_BIND *bind_arg,
unsigned int column,
unsigned long offset);
int mysql_stmt_store_result(MYSQL_STMT *stmt);
int mysql_stmt_store_result_start(int *ret, MYSQL_STMT *stmt);
int mysql_stmt_store_result_cont(int *ret, MYSQL_STMT *stmt,
int status);
unsigned long mysql_stmt_param_count(MYSQL_STMT * stmt);
my_bool mysql_stmt_attr_set(MYSQL_STMT *stmt,
enum enum_stmt_attr_type attr_type,
......@@ -621,12 +730,25 @@ my_bool mysql_stmt_attr_get(MYSQL_STMT *stmt,
my_bool mysql_stmt_bind_param(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool mysql_stmt_bind_result(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
my_bool mysql_stmt_close(MYSQL_STMT * stmt);
int mysql_stmt_close_start(my_bool *ret, MYSQL_STMT *stmt);
int mysql_stmt_close_cont(my_bool *ret, MYSQL_STMT * stmt, int status);
my_bool mysql_stmt_reset(MYSQL_STMT * stmt);
int mysql_stmt_reset_start(my_bool *ret, MYSQL_STMT * stmt);
int mysql_stmt_reset_cont(my_bool *ret, MYSQL_STMT *stmt, int status);
my_bool mysql_stmt_free_result(MYSQL_STMT *stmt);
int mysql_stmt_free_result_start(my_bool *ret, MYSQL_STMT *stmt);
int mysql_stmt_free_result_cont(my_bool *ret, MYSQL_STMT *stmt,
int status);
my_bool mysql_stmt_send_long_data(MYSQL_STMT *stmt,
unsigned int param_number,
const char *data,
unsigned long length);
int mysql_stmt_send_long_data_start(my_bool *ret, MYSQL_STMT *stmt,
unsigned int param_number,
const char *data,
unsigned long len);
int mysql_stmt_send_long_data_cont(my_bool *ret, MYSQL_STMT *stmt,
int status);
MYSQL_RES * mysql_stmt_result_metadata(MYSQL_STMT *stmt);
MYSQL_RES * mysql_stmt_param_metadata(MYSQL_STMT *stmt);
unsigned int mysql_stmt_errno(MYSQL_STMT * stmt);
......@@ -641,8 +763,21 @@ my_ulonglong mysql_stmt_affected_rows(MYSQL_STMT *stmt);
my_ulonglong mysql_stmt_insert_id(MYSQL_STMT *stmt);
unsigned int mysql_stmt_field_count(MYSQL_STMT *stmt);
my_bool mysql_commit(MYSQL * mysql);
int mysql_commit_start(my_bool *ret, MYSQL * mysql);
int mysql_commit_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool mysql_rollback(MYSQL * mysql);
int mysql_rollback_start(my_bool *ret, MYSQL * mysql);
int mysql_rollback_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool mysql_autocommit(MYSQL * mysql, my_bool auto_mode);
int mysql_autocommit_start(my_bool *ret, MYSQL * mysql,
my_bool auto_mode);
int mysql_autocommit_cont(my_bool *ret, MYSQL * mysql, int status);
my_bool mysql_more_results(MYSQL *mysql);
int mysql_next_result(MYSQL *mysql);
int mysql_next_result_start(int *ret, MYSQL *mysql);
int mysql_next_result_cont(int *ret, MYSQL *mysql, int status);
void mysql_close(MYSQL *sock);
int mysql_close_start(MYSQL *sock);
int mysql_close_cont(MYSQL *sock, int status);
my_socket mysql_get_socket(const MYSQL *mysql);
unsigned int mysql_get_timeout_value(const MYSQL *mysql);
include/sql_common.h
View file @ a5b88159
......@@ -26,11 +26,18 @@ extern const char *unknown_sqlstate;
extern const char *cant_connect_sqlstate;
extern const char *not_error_sqlstate;
struct mysql_async_context;
struct st_mysql_options_extention {
char *plugin_dir;
char *default_auth;
};
struct st_mysql_extension {
struct mysql_async_context *async_context;
};
typedef struct st_mysql_methods
{
my_bool (*read_query_result)(MYSQL *mysql);
......@@ -102,6 +109,10 @@ void mysql_client_plugin_deinit();
struct st_mysql_client_plugin;
extern struct st_mysql_client_plugin *mysql_client_builtins[];
/* Non-blocking client API. */
void my_context_install_suspend_resume_hook(struct mysql_async_context *b,
void (*)(my_bool, void *), void *);
#ifdef __cplusplus
}
#endif
......
include/violite.h
View file @ a5b88159
......@@ -194,6 +194,8 @@ struct st_vio
char *read_pos; /* start of unfetched data in the
read buffer */
char *read_end; /* end of unfetched data */
struct mysql_async_context *async_context; /* For non-blocking API */
uint read_timeout, write_timeout;
/* function pointers. They are similar for socket/SSL/whatever */
void (*viodelete)(Vio*);
int (*vioerrno)(Vio*);
......
libmysql/CMakeLists.txt
View file @ a5b88159
......@@ -95,7 +95,8 @@ SET(CLIENT_SOURCES ../mysys/array.c ../strings/bchange.c ../strings/bmove.c
../strings/strtoll.c ../strings/strtoull.c ../strings/strxmov.c ../strings/strxnmov.c
../mysys/thr_mutex.c ../mysys/typelib.c ../vio/vio.c ../vio/viosocket.c
../vio/viossl.c ../vio/viosslfactories.c ../strings/xml.c ../mysys/mf_qsort.c
../mysys/my_getsystime.c ../mysys/my_sync.c ../sql-common/client_plugin.c ${LIB_SOURCES})
../mysys/my_getsystime.c ../mysys/my_sync.c ../sql-common/client_plugin.c
../sql-common/mysql_async.c ../mysys/my_context.c ${LIB_SOURCES})
# Need to set USE_TLS for building the DLL, since __declspec(thread)
# approach to thread local storage does not work properly in DLLs.
......
libmysql/Makefile.shared
View file @ a5b88159
......@@ -71,9 +71,10 @@ mysysobjects1 = my_init.lo my_static.lo my_malloc.lo my_realloc.lo \
mf_iocache2.lo my_seek.lo my_sleep.lo \
my_pread.lo mf_cache.lo md5.lo sha1.lo my_rnd.lo \
my_getopt.lo my_port.lo \
my_rename.lo my_chsize.lo my_sync.lo my_getsystime.lo
my_rename.lo my_chsize.lo my_sync.lo my_getsystime.lo \
my_context.lo
sqlobjects = net.lo
sql_cmn_objects = pack.lo client.lo my_time.lo client_plugin.lo
sql_cmn_objects = pack.lo client.lo my_time.lo client_plugin.lo mysql_async.lo
# Not needed in the minimum library
mysysobjects2 = my_lib.lo mf_qsort.lo
......
libmysqld/CMakeLists.txt
View file @ a5b88159
......@@ -104,6 +104,7 @@ SET(LIBMYSQLD_SOURCES libmysqld.c emb_qcache.cc lib_sql.cc
../sql-common/my_user.c ../sql-common/pack.c
../sql/password.c ../sql/discover.cc ../sql/derror.cc
../sql/field.cc ../sql/field_conv.cc ../sql-common/client_plugin.c
../sql-common/mysql_async.c
../sql/filesort.cc ../sql/gstream.cc ../sql/ha_partition.cc
../sql/handler.cc ../sql/hash_filo.cc ../sql/hostname.cc
../sql/init.cc ../sql/item_buff.cc ../sql/item_cmpfunc.cc
......
libmysqld/Makefile.am
View file @ a5b88159
......@@ -41,7 +41,7 @@ pkglib_LTLIBRARIES = libmysqld.la
SUBDIRS = . examples
libmysqld_sources= libmysqld.c lib_sql.cc emb_qcache.cc
libmysqlsources = errmsg.c get_password.c libmysql.c client.c pack.c \
my_time.c client_plugin.c
my_time.c client_plugin.c mysql_async.c
noinst_HEADERS = embedded_priv.h emb_qcache.h
......
mysql-test/mysql-test-run.pl
View file @ a5b88159
......@@ -185,6 +185,7 @@ my $opt_ps_protocol;
my $opt_sp_protocol;
my $opt_cursor_protocol;
my $opt_view_protocol;
my $opt_non_blocking_api;
our $opt_debug;
our $opt_debug_server;
......@@ -964,6 +965,7 @@ sub command_line_setup {
'sp-protocol' => \$opt_sp_protocol,
'view-protocol' => \$opt_view_protocol,
'cursor-protocol' => \$opt_cursor_protocol,
'non-blocking-api' => \$opt_non_blocking_api,
'ssl|with-openssl' => \$opt_ssl,
'skip-ssl' => \$opt_skip_ssl,
'compress' => \$opt_compress,
......@@ -5468,6 +5470,11 @@ sub start_mysqltest ($) {
mtr_add_arg($args, "--cursor-protocol");
}
if ( $opt_non_blocking_api )
{
mtr_add_arg($args, "--non-blocking-api");
}
if ( $opt_strace_client )
{
$exe= $opt_strace_client || "strace";
......@@ -5915,6 +5922,7 @@ Options to control what engine/variation to run
(implies --ps-protocol)
view-protocol Create a view to execute all non updating queries
sp-protocol Create a stored procedure to execute all queries
non-blocking-api Use the non-blocking client API
compress Use the compressed protocol between client and server
ssl Use ssl protocol between client and server
skip-ssl Dont start server with support for ssl connections
......
mysql-test/r/mysql_client_test_nonblock.result 0 → 100644
View file @ a5b88159
SET @old_general_log= @@global.general_log;
SET @old_slow_query_log= @@global.slow_query_log;
ok
SET @@global.general_log= @old_general_log;
SET @@global.slow_query_log= @old_slow_query_log;
mysql-test/r/non_blocking_api.result 0 → 100644
View file @ a5b88159
CREATE TABLE t1 (a INT PRIMARY KEY);
INSERT INTO t1 VALUES (1);
SELECT * FROM t1;
a
1
SELECT * FROM t1;
a
1
DROP TABLE t1;
mysql-test/t/mysql_client_test_nonblock-master.opt 0 → 100644
View file @ a5b88159
--log=$MYSQLTEST_VARDIR/log/master.log --log-output=FILE,TABLE
mysql-test/t/mysql_client_test_nonblock.test 0 → 100644
View file @ a5b88159
# This runs the mysql_client_test using the non-blocking API.
# This test should work in embedded server after we fix mysqltest
-- source include/not_embedded.inc
SET @old_general_log= @@global.general_log;
SET @old_slow_query_log= @@global.slow_query_log;
# We run with different binaries for normal and --embedded-server
#
# If this test fails with "command "$MYSQL_CLIENT_TEST" failed",
# you should either run mysql_client_test separartely against a running
# server or run mysql-test-run --debug mysql_client_test and check
# var/log/mysql_client_test.trace
--exec echo "$MYSQL_CLIENT_TEST --non-blocking-api" > $MYSQLTEST_VARDIR/log/mysql_client_test.out.log 2>&1
--exec $MYSQL_CLIENT_TEST --non-blocking-api --getopt-ll-test=25600M >> $MYSQLTEST_VARDIR/log/mysql_client_test.out.log 2>&1
# End of 4.1 tests
echo ok;
SET @@global.general_log= @old_general_log;
SET @@global.slow_query_log= @old_slow_query_log;
mysql-test/t/named_pipe.test
View file @ a5b88159
......@@ -2,6 +2,8 @@
# in order to optimize things we skip this test on all
# other platforms
--source include/windows.inc
# Named pipe does not support the non-blocking API.
--disable_non_blocking_api
# Only run this test if named pipe is avaliable
let $nmp= query_get_value("SHOW VARIABLES LIKE 'named_pipe'", Value, 1);
......
mysql-test/t/non_blocking_api.test 0 → 100644
View file @ a5b88159
# Test mixing the use of blocking and non-blocking API in a single connection.
--enable_non_blocking_api
connect (con_nonblock,localhost,root,,test);
--disable_non_blocking_api
connect (con_normal,localhost,root,,test);
connection con_nonblock;
CREATE TABLE t1 (a INT PRIMARY KEY);
--enable_non_blocking_api
INSERT INTO t1 VALUES (1);
--disable_non_blocking_api
SELECT * FROM t1;
--enable_non_blocking_api
SELECT * FROM t1;
connection con_normal;
DROP TABLE t1;
mysys/CMakeLists.txt
View file @ a5b88159
......@@ -44,6 +44,7 @@ SET(MYSYS_SOURCES array.c charset-def.c charset.c checksum.c default.c default_
lf_alloc-pin.c lf_dynarray.c lf_hash.c
my_atomic.c my_getncpus.c my_rnd.c
my_uuid.c wqueue.c waiting_threads.c
my_context.c
)
IF(NOT SOURCE_SUBLIBS)
......
mysys/Makefile.am
View file @ a5b88159
......@@ -58,7 +58,7 @@ libmysys_la_SOURCES = my_init.c my_getwd.c mf_getdate.c my_mmap.c \
my_compare.c my_netware.c my_largepage.c \
my_memmem.c stacktrace.c \
my_windac.c my_access.c base64.c my_libwrap.c \
wqueue.c
wqueue.c my_context.c
libmysys_la_LDFLAGS = $(AM_LDFLAGS) @WRAPLIBS@
libmysys_la_LIBADD = $(ZLIB_LIBS)
......
mysys/my_context.c 0 → 100644
View file @ a5b88159
/*
Copyright 2011 Kristian Nielsen
Experiments with non-blocking libmysql.
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Implementation of async context spawning using Posix ucontext and
swapcontext().
*/
#include <stdio.h>
#include <errno.h>
#include "mysys_priv.h"
#include "my_context.h"
#ifdef HAVE_VALGRIND_VALGRIND_H
#include <valgrind/valgrind.h>
#endif
#ifdef MY_CONTEXT_USE_UCONTEXT
/*
The makecontext() only allows to pass integers into the created context :-(
We want to pass pointers, so we do it this kinda hackish way.
Anyway, it should work everywhere, and at least it does not break strict
aliasing.
*/
union pass_void_ptr_as_2_int {
int a[2];
void *p;
};
/*
We use old-style function definition here, as this is passed to
makecontext(). And the type of the makecontext() argument does not match
the actual type (as the actual type can differ from call to call).
*/
static void
my_context_spawn_internal(i0, i1)
int i0, i1;
{
int err;
struct my_context *c;
union pass_void_ptr_as_2_int u;
u.a[0]= i0;
u.a[1]= i1;
c= (struct my_context *)u.p;
(*c->user_func)(c->user_data);
c->active= 0;
err= setcontext(&c->base_context);
fprintf(stderr, "Aieie, setcontext() failed: %d (errno=%d)\n", err, errno);
}
int
my_context_continue(struct my_context *c)
{
int err;
if (!c->active)
return 0;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
err= swapcontext(&c->base_context, &c->spawned_context);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
if (err)
{
fprintf(stderr, "Aieie, swapcontext() failed: %d (errno=%d)\n",
err, errno);
return -1;
}
return c->active;
}
int
my_context_spawn(struct my_context *c, void (*f)(void *), void *d)
{
int err;
union pass_void_ptr_as_2_int u;
err= getcontext(&c->spawned_context);
if (err)
return -1;
c->spawned_context.uc_stack.ss_sp= c->stack;
c->spawned_context.uc_stack.ss_size= c->stack_size;
c->spawned_context.uc_link= NULL;
c->user_func= f;
c->user_data= d;
c->active= 1;
u.p= c;
makecontext(&c->spawned_context, my_context_spawn_internal, 2,
u.a[0], u.a[1]);
return my_context_continue(c);
}
int
my_context_yield(struct my_context *c)
{
int err;
if (!c->active)
return -1;
err= swapcontext(&c->spawned_context, &c->base_context);
if (err)
return -1;
return 0;
}
int
my_context_init(struct my_context *c, size_t stack_size)
{
if (2*sizeof(int) < sizeof(void *))
{
fprintf(stderr,
"Error: Unable to store pointer in 2 ints on this architecture\n");
return -1;
}
if (!(c->stack= malloc(stack_size)))
return -1; /* Out of memory */
c->stack_size= stack_size;
#ifdef HAVE_VALGRIND_VALGRIND_H
c->valgrind_stack_id=
VALGRIND_STACK_REGISTER(c->stack, ((unsigned char *)(c->stack))+stack_size);
#endif
#ifndef DBUG_OFF
c->dbug_state= NULL;
#endif
return 0;
}
void
my_context_destroy(struct my_context *c)
{
if (c->stack)
{
#ifdef HAVE_VALGRIND_VALGRIND_H
VALGRIND_STACK_DEREGISTER(c->valgrind_stack_id);
#endif
free(c->stack);
}
#ifndef DBUG_OFF
dbug_free_code_state(&c->dbug_state);
#endif
}
#endif /* MY_CONTEXT_USE_UCONTEXT */
#ifdef MY_CONTEXT_USE_X86_64_GCC_ASM
/*
GCC-amd64 implementation of my_context.
This is slightly optimized in the common case where we never yield
(eg. fetch next row and it is already fully received in buffer). In this
case we do not need to restore registers at return (though we still need to
save them as we cannot know if we will yield or not in advance).
*/
#include <stdint.h>
#include <stdlib.h>
/*
Layout of saved registers etc.
Since this is accessed through gcc inline assembler, it is simpler to just
use numbers than to try to define nice constants or structs.
0 0 %rsp
1 8 %rbp
2 16 %rbx
3 24 %r12
4 32 %r13
5 40 %r14
6 48 %r15
7 56 %rip for done
8 64 %rip for yield/continue
*/
int
my_context_spawn(struct my_context *c, void (*f)(void *), void *d)
{
int ret;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
/*
There are 6 callee-save registers we need to save and restore when
suspending and continuing, plus stack pointer %rsp and instruction pointer
%rip.
However, if we never suspend, the user-supplied function will in any case
restore the 6 callee-save registers, so we can avoid restoring them in
this case.
*/
__asm__ __volatile__
(
"movq %%rsp, (%[save])\n\t"
"movq %[stack], %%rsp\n\t"
"movq %%rbp, 8(%[save])\n\t"
"movq %%rbx, 16(%[save])\n\t"
"movq %%r12, 24(%[save])\n\t"
"movq %%r13, 32(%[save])\n\t"
"movq %%r14, 40(%[save])\n\t"
"movq %%r15, 48(%[save])\n\t"
"leaq 1f(%%rip), %%rax\n\t"
"leaq 2f(%%rip), %%rcx\n\t"
"movq %%rax, 56(%[save])\n\t"
"movq %%rcx, 64(%[save])\n\t"
/*
Constraint below puts the argument to the user function into %rdi, as
needed for the calling convention.
*/
"callq *%[f]\n\t"
"jmpq *56(%[save])\n"
/*
Come here when operation is done.
We do not need to restore callee-save registers, as the called function
will do this for us if needed.
*/
"1:\n\t"
"movq (%[save]), %%rsp\n\t"
"xorl %[ret], %[ret]\n\t"
"jmp 3f\n"
/* Come here when operation was suspended. */
"2:\n\t"
"movl $1, %[ret]\n"
"3:\n"
: [ret] "=a" (ret),
[f] "+S" (f),
/* Need this in %rdi to follow calling convention. */
[d] "+D" (d)
: [stack] "a" (c->stack_top),
/* Need this in callee-save register to preserve in function call. */
[save] "b" (&c->save[0])
: "rcx", "rdx", "r8", "r9", "r10", "r11", "memory", "cc"
);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return ret;
}
int
my_context_continue(struct my_context *c)
{
int ret;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
__asm__ __volatile__
(
"movq (%[save]), %%rax\n\t"
"movq %%rsp, (%[save])\n\t"
"movq %%rax, %%rsp\n\t"
"movq 8(%[save]), %%rax\n\t"
"movq %%rbp, 8(%[save])\n\t"
"movq %%rax, %%rbp\n\t"
"movq 24(%[save]), %%rax\n\t"
"movq %%r12, 24(%[save])\n\t"
"movq %%rax, %%r12\n\t"
"movq 32(%[save]), %%rax\n\t"
"movq %%r13, 32(%[save])\n\t"
"movq %%rax, %%r13\n\t"
"movq 40(%[save]), %%rax\n\t"
"movq %%r14, 40(%[save])\n\t"
"movq %%rax, %%r14\n\t"
"movq 48(%[save]), %%rax\n\t"
"movq %%r15, 48(%[save])\n\t"
"movq %%rax, %%r15\n\t"
"leaq 1f(%%rip), %%rax\n\t"
"leaq 2f(%%rip), %%rcx\n\t"
"movq %%rax, 56(%[save])\n\t"
"movq 64(%[save]), %%rax\n\t"
"movq %%rcx, 64(%[save])\n\t"
"movq 16(%[save]), %%rcx\n\t"
"movq %%rbx, 16(%[save])\n\t"
"movq %%rcx, %%rbx\n\t"
"jmpq *%%rax\n"
/*
Come here when operation is done.
Be sure to use the same callee-save register for %[save] here and in
my_context_spawn(), so we preserve the value correctly at this point.
*/
"1:\n\t"
"movq (%[save]), %%rsp\n\t"
"movq 8(%[save]), %%rbp\n\t"
/* %rbx is preserved from my_context_spawn() in this case. */
"movq 24(%[save]), %%r12\n\t"
"movq 32(%[save]), %%r13\n\t"
"movq 40(%[save]), %%r14\n\t"
"movq 48(%[save]), %%r15\n\t"
"xorl %[ret], %[ret]\n\t"
"jmp 3f\n"
/* Come here when operation is suspended. */
"2:\n\t"
"movl $1, %[ret]\n"
"3:\n"
: [ret] "=a" (ret)
: /* Need this in callee-save register to preserve in function call. */
[save] "b" (&c->save[0])
: "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11", "memory", "cc"
);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return ret;
}
int
my_context_yield(struct my_context *c)
{
uint64_t *save= &c->save[0];
__asm__ __volatile__
(
"movq (%[save]), %%rax\n\t"
"movq %%rsp, (%[save])\n\t"
"movq %%rax, %%rsp\n\t"
"movq 8(%[save]), %%rax\n\t"
"movq %%rbp, 8(%[save])\n\t"
"movq %%rax, %%rbp\n\t"
"movq 16(%[save]), %%rax\n\t"
"movq %%rbx, 16(%[save])\n\t"
"movq %%rax, %%rbx\n\t"
"movq 24(%[save]), %%rax\n\t"
"movq %%r12, 24(%[save])\n\t"
"movq %%rax, %%r12\n\t"
"movq 32(%[save]), %%rax\n\t"
"movq %%r13, 32(%[save])\n\t"
"movq %%rax, %%r13\n\t"
"movq 40(%[save]), %%rax\n\t"
"movq %%r14, 40(%[save])\n\t"
"movq %%rax, %%r14\n\t"
"movq 48(%[save]), %%rax\n\t"
"movq %%r15, 48(%[save])\n\t"
"movq %%rax, %%r15\n\t"
"movq 64(%[save]), %%rax\n\t"
"leaq 1f(%%rip), %%rcx\n\t"
"movq %%rcx, 64(%[save])\n\t"
"jmpq *%%rax\n"
"1:\n"
: [save] "+D" (save)
:
: "rax", "rcx", "rdx", "rsi", "r8", "r9", "r10", "r11", "memory", "cc"
);
return 0;
}
int
my_context_init(struct my_context *c, size_t stack_size)
{
if (!(c->stack_bot= malloc(stack_size)))
return -1; /* Out of memory */
c->stack_top= ((unsigned char *)(c->stack_bot)) + stack_size;
#ifdef HAVE_VALGRIND_VALGRIND_H
c->valgrind_stack_id=
VALGRIND_STACK_REGISTER(c->stack_bot, c->stack_top);
#endif
#ifndef DBUG_OFF
c->dbug_state= NULL;
#endif
return 0;
}
void
my_context_destroy(struct my_context *c)
{
if (c->stack_bot)
{
free(c->stack_bot);
#ifdef HAVE_VALGRIND_VALGRIND_H
VALGRIND_STACK_DEREGISTER(c->valgrind_stack_id);
#endif
}
#ifndef DBUG_OFF
dbug_free_code_state(&c->dbug_state);
#endif
}
#endif /* MY_CONTEXT_USE_X86_64_GCC_ASM */
#ifdef MY_CONTEXT_USE_I386_GCC_ASM
/*
GCC-i386 implementation of my_context.
This is slightly optimized in the common case where we never yield
(eg. fetch next row and it is already fully received in buffer). In this
case we do not need to restore registers at return (though we still need to
save them as we cannot know if we will yield or not in advance).
*/
#include <stdint.h>
#include <stdlib.h>
/*
Layout of saved registers etc.
Since this is accessed through gcc inline assembler, it is simpler to just
use numbers than to try to define nice constants or structs.
0 0 %esp
1 4 %ebp
2 8 %ebx
3 12 %esi
4 16 %edi
5 20 %eip for done
6 24 %eip for yield/continue
*/
int
my_context_spawn(struct my_context *c, void (*f)(void *), void *d)
{
int ret;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
/*
There are 4 callee-save registers we need to save and restore when
suspending and continuing, plus stack pointer %esp and instruction pointer
%eip.
However, if we never suspend, the user-supplied function will in any case
restore the 4 callee-save registers, so we can avoid restoring them in
this case.
*/
__asm__ __volatile__
(
"movl %%esp, (%[save])\n\t"
"movl %[stack], %%esp\n\t"
/* Push the parameter on the stack. */
"pushl %[d]\n\t"
"movl %%ebp, 4(%[save])\n\t"
"movl %%ebx, 8(%[save])\n\t"
"movl %%esi, 12(%[save])\n\t"
"movl %%edi, 16(%[save])\n\t"
/* Get label addresses in -fPIC-compatible way (no pc-relative on 32bit) */
"call 1f\n"
"1:\n\t"
"popl %%eax\n\t"
"addl $(2f-1b), %%eax\n\t"
"movl %%eax, 20(%[save])\n\t"
"addl $(3f-2f), %%eax\n\t"
"movl %%eax, 24(%[save])\n\t"
"call *%[f]\n\t"
"jmp *20(%[save])\n"
/*
Come here when operation is done.
We do not need to restore callee-save registers, as the called function
will do this for us if needed.
*/
"2:\n\t"
"movl (%[save]), %%esp\n\t"
"xorl %[ret], %[ret]\n\t"
"jmp 4f\n"
/* Come here when operation was suspended. */
"3:\n\t"
"movl $1, %[ret]\n"
"4:\n"
: [ret] "=a" (ret)
: [stack] "a" (c->stack_top),
/* Need this in callee-save register to preserve across function call. */
[save] "D" (&c->save[0]),
[f] "m" (f),
[d] "m" (d)
: "ecx", "edx", "memory", "cc"
);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return ret;
}
int
my_context_continue(struct my_context *c)
{
int ret;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
__asm__ __volatile__
(
"movl (%[save]), %%eax\n\t"
"movl %%esp, (%[save])\n\t"
"movl %%eax, %%esp\n\t"
"movl 4(%[save]), %%eax\n\t"
"movl %%ebp, 4(%[save])\n\t"
"movl %%eax, %%ebp\n\t"
"movl 8(%[save]), %%eax\n\t"
"movl %%ebx, 8(%[save])\n\t"
"movl %%eax, %%ebx\n\t"
"movl 12(%[save]), %%eax\n\t"
"movl %%esi, 12(%[save])\n\t"
"movl %%eax, %%esi\n\t"
"movl 24(%[save]), %%eax\n\t"
"call 1f\n"
"1:\n\t"
"popl %%ecx\n\t"
"addl $(2f-1b), %%ecx\n\t"
"movl %%ecx, 20(%[save])\n\t"
"addl $(3f-2f), %%ecx\n\t"
"movl %%ecx, 24(%[save])\n\t"
/* Must restore %edi last as it is also our %[save] register. */
"movl 16(%[save]), %%ecx\n\t"
"movl %%edi, 16(%[save])\n\t"
"movl %%ecx, %%edi\n\t"
"jmp *%%eax\n"
/*
Come here when operation is done.
Be sure to use the same callee-save register for %[save] here and in
my_context_spawn(), so we preserve the value correctly at this point.
*/
"2:\n\t"
"movl (%[save]), %%esp\n\t"
"movl 4(%[save]), %%ebp\n\t"
"movl 8(%[save]), %%ebx\n\t"
"movl 12(%[save]), %%esi\n\t"
"movl 16(%[save]), %%edi\n\t"
"xorl %[ret], %[ret]\n\t"
"jmp 4f\n"
/* Come here when operation is suspended. */
"3:\n\t"
"movl $1, %[ret]\n"
"4:\n"
: [ret] "=a" (ret)
: /* Need this in callee-save register to preserve in function call. */
[save] "D" (&c->save[0])
: "ecx", "edx", "memory", "cc"
);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return ret;
}
int
my_context_yield(struct my_context *c)
{
uint64_t *save= &c->save[0];
__asm__ __volatile__
(
"movl (%[save]), %%eax\n\t"
"movl %%esp, (%[save])\n\t"
"movl %%eax, %%esp\n\t"
"movl 4(%[save]), %%eax\n\t"
"movl %%ebp, 4(%[save])\n\t"
"movl %%eax, %%ebp\n\t"
"movl 8(%[save]), %%eax\n\t"
"movl %%ebx, 8(%[save])\n\t"
"movl %%eax, %%ebx\n\t"
"movl 12(%[save]), %%eax\n\t"
"movl %%esi, 12(%[save])\n\t"
"movl %%eax, %%esi\n\t"
"movl 16(%[save]), %%eax\n\t"
"movl %%edi, 16(%[save])\n\t"
"movl %%eax, %%edi\n\t"
"movl 24(%[save]), %%eax\n\t"
"call 1f\n"
"1:\n\t"
"popl %%ecx\n\t"
"addl $(2f-1b), %%ecx\n\t"
"movl %%ecx, 24(%[save])\n\t"
"jmp *%%eax\n"
"2:\n"
: [save] "+d" (save)
:
: "eax", "ecx", "memory", "cc"
);
return 0;
}
int
my_context_init(struct my_context *c, size_t stack_size)
{
if (!(c->stack_bot= malloc(stack_size)))
return -1; /* Out of memory */
c->stack_top= ((unsigned char *)(c->stack_bot)) + stack_size;
#ifdef HAVE_VALGRIND_VALGRIND_H
c->valgrind_stack_id=
VALGRIND_STACK_REGISTER(c->stack_bot, c->stack_top);
#endif
#ifndef DBUG_OFF
c->dbug_state= NULL;
#endif
return 0;
}
void
my_context_destroy(struct my_context *c)
{
if (c->stack_bot)
{
free(c->stack_bot);
#ifdef HAVE_VALGRIND_VALGRIND_H
VALGRIND_STACK_DEREGISTER(c->valgrind_stack_id);
#endif
}
#ifndef DBUG_OFF
dbug_free_code_state(&c->dbug_state);
#endif
}
#endif /* MY_CONTEXT_USE_I386_GCC_ASM */
#ifdef MY_CONTEXT_USE_WIN32_FIBERS
int
my_context_yield(struct my_context *c)
{
c->return_value= 1;
SwitchToFiber(c->app_fiber);
return 0;
}
static void WINAPI
my_context_trampoline(void *p)
{
struct my_context *c= (struct my_context *)p;
/*
Reuse the Fiber by looping infinitely, each time we are scheduled we
spawn the appropriate function and switch back when it is done.
This way we avoid the overhead of CreateFiber() for every asynchroneous
operation.
*/
for(;;)
{
(*(c->user_func))(c->user_arg);
c->return_value= 0;
SwitchToFiber(c->app_fiber);
}
}
int
my_context_init(struct my_context *c, size_t stack_size)
{
#ifndef DBUG_OFF
c->dbug_state= NULL;
#endif
c->lib_fiber= CreateFiber(stack_size, my_context_trampoline, c);
if (c->lib_fiber)
return 0;
else
return -1;
}
void
my_context_destroy(struct my_context *c)
{
#ifndef DBUG_OFF
dbug_free_code_state(&c->dbug_state);
#endif
if (c->lib_fiber)
{
DeleteFiber(c->lib_fiber);
c->lib_fiber= NULL;
}
}
int
my_context_spawn(struct my_context *c, void (*f)(void *), void *d)
{
void *current_fiber;
c->user_func= f;
c->user_arg= d;
/*
This seems to be a common trick to run ConvertThreadToFiber() only on the
first occurence in a thread, in a way that works on multiple Windows
versions.
*/
current_fiber= GetCurrentFiber();
if (current_fiber == NULL || current_fiber == (void *)0x1e00)
current_fiber= ConvertThreadToFiber(c);
c->app_fiber= current_fiber;
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
SwitchToFiber(c->lib_fiber);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return c->return_value;
}
int
my_context_continue(struct my_context *c)
{
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
SwitchToFiber(c->lib_fiber);
#ifndef DBUG_OFF
dbug_swap_code_state(&c->dbug_state);
#endif
return c->return_value;
}
#endif /* MY_CONTEXT_USE_WIN32_FIBERS */
server-tools/instance-manager/CMakeLists.txt
View file @ a5b88159
......@@ -26,7 +26,8 @@ ADD_EXECUTABLE(mysqlmanager buffer.cc command.cc commands.cc guardian.cc instanc
user_management_commands.cc ../../mysys/my_rnd.c
../../sql/net_serv.cc ../../sql-common/pack.c ../../sql/password.c
../../sql/sql_state.c ../../sql-common/client.c ../../libmysql/get_password.c
../../libmysql/errmsg.c ../../sql-common/client_plugin.c)
../../libmysql/errmsg.c ../../sql-common/client_plugin.c
../../sql-common/mysql_async.c)
ADD_DEPENDENCIES(mysqlmanager GenError)
TARGET_LINK_LIBRARIES(mysqlmanager debug dbug mysys strings taocrypt vio yassl zlib wsock32)
......
server-tools/instance-manager/Makefile.am
View file @ a5b88159
......@@ -47,6 +47,7 @@ libnet_a_LIBADD= $(top_builddir)/sql/password.$(OBJEXT) \
$(top_builddir)/sql/sql_state.$(OBJEXT) \
$(top_builddir)/sql/mini_client_errors.$(OBJEXT)\
$(top_builddir)/sql/client.$(OBJEXT) \
$(top_builddir)/sql/mysql_async.$(OBJEXT) \
$(top_builddir)/sql/client_plugin.$(OBJEXT)
CLEANFILES= net_serv.cc client_settings.h
......
sql-common/Makefile.am
View file @ a5b88159
......@@ -14,4 +14,5 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
## Process this file with automake to create Makefile.in
EXTRA_DIST = client.c pack.c my_time.c my_user.c client_plugin.c
EXTRA_DIST = client.c pack.c my_time.c my_user.c client_plugin.c \
mysql_async.c
sql-common/client.c
View file @ a5b88159
......@@ -108,6 +108,7 @@ my_bool net_flush(NET *net);
#include "client_settings.h"
#include <sql_common.h>
#include <mysql/client_plugin.h>
#include "my_context.h"
#define native_password_plugin_name "mysql_native_password"
#define old_password_plugin_name "mysql_old_password"
......@@ -1050,6 +1051,15 @@ static int add_init_command(struct st_mysql_options *options, const char *cmd)
return 0;
}
#define mysql_extension_get(MYSQL, X) \
((MYSQL)->extension ? (MYSQL)->extension->X : NULL)
#define mysql_extension_set(MYSQL, X, VAL) \
if (!(MYSQL)->extension) \
(MYSQL)->extension= (struct st_mysql_extension *) \
my_malloc(sizeof(struct st_mysql_extension), \
MYF(MY_WME | MY_ZEROFILL)); \
(MYSQL)->extension->X= VAL;
#define extension_set_string(OPTS, X, STR) \
if ((OPTS)->extension) \
my_free((OPTS)->extension->X, MYF(MY_ALLOW_ZERO_PTR)); \
......@@ -1266,6 +1276,36 @@ void mysql_read_default_options(struct st_mysql_options *options,
DBUG_VOID_RETURN;
}
/*
Fetch the context for asynchronous API calls, allocating a new one if
necessary.
*/
#define STACK_SIZE (4096*15)
struct mysql_async_context *
mysql_get_async_context(MYSQL *mysql)
{
struct mysql_async_context *b;
if ((b= mysql_extension_get(mysql, async_context)))
return b;
if (!(b= (struct mysql_async_context *)
my_malloc(sizeof(*b), MYF(MY_ZEROFILL))))
{
set_mysql_error(mysql, CR_OUT_OF_MEMORY, unknown_sqlstate);
return NULL;
}
if (my_context_init(&b->async_context, STACK_SIZE))
{
my_free(b, MYF(0));
return NULL;
}
mysql_extension_set(mysql, async_context, b)
if (mysql->net.vio)
mysql->net.vio->async_context= b;
return b;
}
/**************************************************************************
Get column lengths of the current row
......@@ -2537,6 +2577,26 @@ int run_plugin_auth(MYSQL *mysql, char *data, uint data_len,
}
static int
connect_sync_or_async(MYSQL *mysql, NET *net, my_socket fd,
const struct sockaddr *name, uint namelen)
{
extern int my_connect_async(struct mysql_async_context *b, my_socket fd,
const struct sockaddr *name, uint namelen,
uint timeout);
struct mysql_async_context *actxt= mysql_extension_get(mysql, async_context);
if (actxt && actxt->active)
{
my_bool old_mode;
vio_blocking(net->vio, FALSE, &old_mode);
return my_connect_async(actxt, fd, name, namelen,
mysql->options.connect_timeout);
}
else
return my_connect(fd, name, namelen, mysql->options.connect_timeout);
}
MYSQL * STDCALL
CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
const char *passwd, const char *db,
......@@ -2552,6 +2612,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
struct sockaddr_in sock_addr;
ulong pkt_length;
NET *net= &mysql->net;
struct mysql_async_context *actxt;
#ifdef MYSQL_SERVER
thr_alarm_t alarmed;
ALARM alarm_buff;
......@@ -2681,8 +2742,8 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
bzero((char*) &UNIXaddr,sizeof(UNIXaddr));
UNIXaddr.sun_family = AF_UNIX;
strmake(UNIXaddr.sun_path, unix_socket, sizeof(UNIXaddr.sun_path)-1);
if (my_connect(sock,(struct sockaddr *) &UNIXaddr, sizeof(UNIXaddr),
mysql->options.connect_timeout))
if (connect_sync_or_async(mysql, net, sock,
(struct sockaddr *) &UNIXaddr, sizeof(UNIXaddr)))
{
DBUG_PRINT("error",("Got error %d on connect to local server",
socket_errno));
......@@ -2763,8 +2824,9 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
if ((int) (ip_addr = inet_addr(host)) != (int) INADDR_NONE)
{
memcpy_fixed(&sock_addr.sin_addr,&ip_addr,sizeof(ip_addr));
status= my_connect(sock, (struct sockaddr *) &sock_addr,
sizeof(sock_addr), mysql->options.connect_timeout);
status= connect_sync_or_async(mysql, net, sock,
(struct sockaddr *) &sock_addr,
sizeof(sock_addr));
}
else
{
......@@ -2795,8 +2857,9 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
min(sizeof(sock_addr.sin_addr), (size_t) hp->h_length));
DBUG_PRINT("info",("Trying %s...",
(my_inet_ntoa(sock_addr.sin_addr, ipaddr), ipaddr)));
status= my_connect(sock, (struct sockaddr *) &sock_addr,
sizeof(sock_addr), mysql->options.connect_timeout);
status= connect_sync_or_async(mysql, net, sock,
(struct sockaddr *) &sock_addr,
sizeof(sock_addr));
}
my_gethostbyname_r_free();
......@@ -2818,6 +2881,9 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
goto error;
}
if ((actxt= mysql_extension_get(mysql, async_context)) && actxt->active)
net->vio->async_context= actxt;
if (my_net_init(net, net->vio))
{
vio_delete(net->vio);
......@@ -3077,9 +3143,34 @@ static void mysql_fix_pointers(MYSQL* mysql, MYSQL* old_mysql)
#endif
struct my_hook_data {
MYSQL *orig_mysql;
MYSQL *new_mysql;
/* This is always NULL currently, but restoring does not hurt just in case. */
Vio *orig_vio;
};
/*
Callback hook to make the new VIO accessible via the old MYSQL to calling
application when suspending a non-blocking call during automatic reconnect.
*/
static void
my_suspend_hook(my_bool suspend, void *data)
{
struct my_hook_data *hook_data= (struct my_hook_data *)data;
if (suspend)
{
hook_data->orig_vio= hook_data->orig_mysql->net.vio;
hook_data->orig_mysql->net.vio= hook_data->new_mysql->net.vio;
}
else
hook_data->orig_mysql->net.vio= hook_data->orig_vio;
}
my_bool mysql_reconnect(MYSQL *mysql)
{
MYSQL tmp_mysql;
struct my_hook_data hook_data;
struct mysql_async_context *ctxt= NULL;
DBUG_ENTER("mysql_reconnect");
DBUG_ASSERT(mysql);
DBUG_PRINT("enter", ("mysql->reconnect: %d", mysql->reconnect));
......@@ -3093,14 +3184,34 @@ my_bool mysql_reconnect(MYSQL *mysql)
DBUG_RETURN(1);
}
mysql_init(&tmp_mysql);
tmp_mysql.extension= mysql->extension;
tmp_mysql.options= mysql->options;
tmp_mysql.options.my_cnf_file= tmp_mysql.options.my_cnf_group= 0;
tmp_mysql.rpl_pivot= mysql->rpl_pivot;
/*
If we are automatically re-connecting inside a non-blocking API call, we
may need to suspend and yield to the user application during the reconnect.
If so, the user application will need access to the new VIO already then
so that it can correctly wait for I/O to become ready.
To achieve this, we temporarily install a hook that will temporarily put in
the VIO while we are suspended.
(The vio will be put in the original MYSQL permanently once we successfully
reconnect, or be discarded if we fail to reconnect.)
*/
if ((ctxt= mysql_extension_get(mysql, async_context)) && ctxt->active)
{
hook_data.orig_mysql= mysql;
hook_data.new_mysql= &tmp_mysql;
hook_data.orig_vio= mysql->net.vio;
my_context_install_suspend_resume_hook(ctxt, my_suspend_hook, &hook_data);
}
if (!mysql_real_connect(&tmp_mysql,mysql->host,mysql->user,mysql->passwd,
mysql->db, mysql->port, mysql->unix_socket,
mysql->client_flag | CLIENT_REMEMBER_OPTIONS))
{
if (ctxt)
my_context_install_suspend_resume_hook(ctxt, NULL, NULL);
mysql->net.last_errno= tmp_mysql.net.last_errno;
strmov(mysql->net.last_error, tmp_mysql.net.last_error);
strmov(mysql->net.sqlstate, tmp_mysql.net.sqlstate);
......@@ -3109,13 +3220,18 @@ my_bool mysql_reconnect(MYSQL *mysql)
if (mysql_set_character_set(&tmp_mysql, mysql->charset->csname))
{
DBUG_PRINT("error", ("mysql_set_character_set() failed"));
tmp_mysql.extension= NULL;
bzero((char*) &tmp_mysql.options,sizeof(tmp_mysql.options));
mysql_close(&tmp_mysql);
if (ctxt)
my_context_install_suspend_resume_hook(ctxt, NULL, NULL);
mysql->net.last_errno= tmp_mysql.net.last_errno;
strmov(mysql->net.last_error, tmp_mysql.net.last_error);
strmov(mysql->net.sqlstate, tmp_mysql.net.sqlstate);
DBUG_RETURN(1);
}
if (ctxt)
my_context_install_suspend_resume_hook(ctxt, NULL, NULL);
DBUG_PRINT("info", ("reconnect succeded"));
tmp_mysql.reconnect= 1;
......@@ -3125,7 +3241,11 @@ my_bool mysql_reconnect(MYSQL *mysql)
tmp_mysql.stmts= mysql->stmts;
mysql->stmts= 0;
/* Don't free options as these are now used in tmp_mysql */
/*
Don't free options as these are now used in tmp_mysql.
Same with extension.
*/
mysql->extension= NULL;
bzero((char*) &mysql->options,sizeof(mysql->options));
mysql->free_me=0;
mysql_close(mysql);
......@@ -3204,6 +3324,21 @@ static void mysql_close_free_options(MYSQL *mysql)
}
static void
mysql_close_free_extension(MYSQL *mysql)
{
if (mysql->extension)
{
if (mysql->extension->async_context)
{
my_context_destroy(&mysql->extension->async_context->async_context);
my_free(mysql->extension->async_context, MYF(0));
}
my_free(mysql->extension, MYF(0));
mysql->extension= NULL;
}
}
static void mysql_close_free(MYSQL *mysql)
{
my_free((uchar*) mysql->host_info,MYF(MY_ALLOW_ZERO_PTR));
......@@ -3304,13 +3439,22 @@ void mysql_detach_stmt_list(LIST **stmt_list __attribute__((unused)),
(As some clients call this after mysql_real_connect() fails)
*/
void STDCALL mysql_close(MYSQL *mysql)
{
DBUG_ENTER("mysql_close");
DBUG_PRINT("enter", ("mysql: 0x%lx", (long) mysql));
/*
mysql_close() can actually block, at least in theory, if the socket buffer
is full when sending the COM_QUIT command.
if (mysql) /* Some simple safety */
{
On the other hand, the latter part of mysql_close() needs to free the stack
used for non-blocking operation of blocking stuff, so that later part can
_not_ be done non-blocking.
Therefore, mysql_pre_close() is used to run the parts of mysql_close() that
may block. It can be called before mysql_close(), and in that case
mysql_close() is guaranteed not to need to block.
*/
void mysql_pre_close(MYSQL *mysql)
{
if (!mysql)
return;
/* If connection is still up, send a QUIT message */
if (mysql->net.vio != 0)
{
......@@ -3320,7 +3464,18 @@ void STDCALL mysql_close(MYSQL *mysql)
simple_command(mysql,COM_QUIT,(uchar*) 0,0,1);
end_server(mysql); /* Sets mysql->net.vio= 0 */
}
}
void STDCALL mysql_close(MYSQL *mysql)
{
DBUG_ENTER("mysql_close");
DBUG_PRINT("enter", ("mysql: 0x%lx", (long) mysql));
if (mysql) /* Some simple safety */
{
mysql_pre_close(mysql);
mysql_close_free_options(mysql);
mysql_close_free_extension(mysql);
mysql_close_free(mysql);
mysql_detach_stmt_list(&mysql->stmts, "mysql_close");
#ifndef TO_BE_DELETED
......@@ -3941,3 +4096,12 @@ static int old_password_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
return CR_OK;
}
my_socket STDCALL
mysql_get_socket(const MYSQL *mysql)
{
if (mysql->net.vio)
return mysql->net.vio->sd;
else
return INVALID_SOCKET;
}
sql-common/mysql_async.c 0 → 100644
View file @ a5b88159
/*
Copyright 2011 Kristian Nielsen
Experiments with non-blocking libmysql.
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this. If not, see <http://www.gnu.org/licenses/>.
*/
/*
MySQL non-blocking client library functions.
*/
#include "my_global.h"
#include "my_sys.h"
#include "mysql.h"
#include "errmsg.h"
#include "sql_common.h"
#include "my_context.h"
#include "violite.h"
#ifdef __WIN__
/*
Windows does not support MSG_DONTWAIT for send()/recv(). So we need to ensure
that the socket is non-blocking at the start of every operation.
*/
#define WIN_SET_NONBLOCKING(mysql) { \
my_bool old_mode__; \
if ((mysql)->net.vio) vio_blocking((mysql)->net.vio, FALSE, &old_mode__); \
}
#else
#define WIN_SET_NONBLOCKING(mysql)
#endif
extern struct mysql_async_context *mysql_get_async_context(MYSQL *mysql);
void
my_context_install_suspend_resume_hook(struct mysql_async_context *b,
void (*hook)(my_bool, void *),
void *user_data)
{
b->suspend_resume_hook= hook;
b->suspend_resume_hook_user_data= user_data;
}
/* Asynchronous connect(); socket must already be set non-blocking. */
int
my_connect_async(struct mysql_async_context *b, my_socket fd,
const struct sockaddr *name, uint namelen, uint timeout)
{
int res;
#ifdef __WIN__
int s_err_size;
#else
socklen_t s_err_size;
#endif
/*
Start to connect asynchronously.
If this will block, we suspend the call and return control to the
application context. The application will then resume us when the socket
polls ready for write, indicating that the connection attempt completed.
*/
res= connect(fd, name, namelen);
#ifdef __WIN__
if (res != 0)
{
int wsa_err= WSAGetLastError();
if (wsa_err != WSAEWOULDBLOCK)
return res;
#else
if (res < 0)
{
if (errno != EINPROGRESS && errno != EALREADY && errno != EAGAIN)
return res;
#endif
b->timeout_value= timeout;
b->ret_status= MYSQL_WAIT_WRITE |
(timeout ? MYSQL_WAIT_TIMEOUT : 0);
#ifdef __WIN__
b->ret_status|= MYSQL_WAIT_EXCEPT;
#endif
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
if (b->ret_status & MYSQL_WAIT_TIMEOUT)
return -1;
s_err_size= sizeof(int);
if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (char*) &res, &s_err_size) != 0)
return -1;
if (res)
{
errno= res;
return -1;
}
}
return res;
}
ssize_t
my_recv_async(struct mysql_async_context *b, int fd,
unsigned char *buf, size_t size, uint timeout)
{
ssize_t res;
for (;;)
{
res= recv(fd, buf, size,
#ifdef __WIN__
0
#else
MSG_DONTWAIT
#endif
);
if (res >= 0 ||
#ifdef __WIN__
WSAGetLastError() != WSAEWOULDBLOCK
#else
(errno != EAGAIN && errno != EINTR)
#endif
)
return res;
b->ret_status= MYSQL_WAIT_READ;
if (timeout)
{
b->ret_status|= MYSQL_WAIT_TIMEOUT;
b->timeout_value= timeout;
}
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
if (b->ret_status & MYSQL_WAIT_TIMEOUT)
return -1;
}
}
ssize_t
my_send_async(struct mysql_async_context *b, int fd,
const unsigned char *buf, size_t size, uint timeout)
{
ssize_t res;
for (;;)
{
res= send(fd, buf, size,
#ifdef __WIN__
0
#else
MSG_DONTWAIT
#endif
);
if (res >= 0 ||
#ifdef __WIN__
WSAGetLastError() != WSAEWOULDBLOCK
#else
(errno != EAGAIN && errno != EINTR)
#endif
)
return res;
b->ret_status= MYSQL_WAIT_WRITE;
if (timeout)
{
b->ret_status|= MYSQL_WAIT_TIMEOUT;
b->timeout_value= timeout;
}
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
if (b->ret_status & MYSQL_WAIT_TIMEOUT)
return -1;
}
}
my_bool
my_poll_read_async(struct mysql_async_context *b, uint timeout)
{
b->ret_status= MYSQL_WAIT_READ | MYSQL_WAIT_TIMEOUT;
b->timeout_value= timeout;
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
return (b->ret_status & MYSQL_WAIT_READ) ? 0 : 1;
}
#ifdef HAVE_OPENSSL
int
my_ssl_read_async(struct mysql_async_context *b, SSL *ssl,
void *buf, int size)
{
int res, ssl_err;
for (;;)
{
res= SSL_read(ssl, buf, size);
if (res >= 0)
return res;
ssl_err= SSL_get_error(ssl, res);
if (ssl_err == SSL_ERROR_WANT_READ)
b->ret_status= MYSQL_WAIT_READ;
else if (ssl_err == SSL_ERROR_WANT_WRITE)
b->ret_status= MYSQL_WAIT_WRITE;
else
return res;
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
}
}
int
my_ssl_write_async(struct mysql_async_context *b, SSL *ssl,
const void *buf, int size)
{
int res, ssl_err;
for (;;)
{
res= SSL_write(ssl, buf, size);
if (res >= 0)
return res;
ssl_err= SSL_get_error(ssl, res);
if (ssl_err == SSL_ERROR_WANT_READ)
b->ret_status= MYSQL_WAIT_READ;
else if (ssl_err == SSL_ERROR_WANT_WRITE)
b->ret_status= MYSQL_WAIT_WRITE;
else
return res;
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(TRUE, b->suspend_resume_hook_user_data);
my_context_yield(&b->async_context);
if (b->suspend_resume_hook)
(*b->suspend_resume_hook)(FALSE, b->suspend_resume_hook_user_data);
}
}
#endif /* HAVE_OPENSSL */
unsigned int STDCALL
mysql_get_timeout_value(const MYSQL *mysql)
{
if (mysql->extension && mysql->extension->async_context)
return mysql->extension->async_context->timeout_value;
else
return 0;
}
/*
Now create non-blocking definitions for all the calls that may block.
Each call FOO gives rise to FOO_start() that prepares the MYSQL object for
doing non-blocking calls that can suspend operation mid-way, and then starts
the call itself. And a FOO_start_internal trampoline to assist with running
the real call in a co-routine that can be suspended. And a FOO_cont() that
can continue a suspended operation.
*/
#define MK_ASYNC_CALLS(call__, decl_args__, invoke_args__, cont_arg__, mysql_val__, parms_mysql_val__, parms_assign__, ret_type__, err_val__, ok_val__, extra1__) \
static void \
call__ ## _start_internal(void *d) \
{ \
struct call__ ## _params *parms; \
ret_type__ ret; \
struct mysql_async_context *b; \
\
parms= (struct call__ ## _params *)d; \
b= (parms_mysql_val__)->extension->async_context; \
\
ret= call__ invoke_args__; \
b->ret_result. ok_val__ = ret; \
b->ret_status= 0; \
} \
int STDCALL \
call__ ## _start decl_args__ \
{ \
int res; \
struct mysql_async_context *b; \
struct call__ ## _params parms; \
\
extra1__ \
if (!(b= mysql_get_async_context((mysql_val__)))) \
{ \
*ret= err_val__; \
return 0; \
} \
parms_assign__ \
\
b->active= 1; \
res= my_context_spawn(&b->async_context, call__ ## _start_internal, &parms);\
b->active= 0; \
if (res < 0) \
{ \
set_mysql_error((mysql_val__), CR_OUT_OF_MEMORY, unknown_sqlstate); \
b->suspended= 0; \
*ret= err_val__; \
return 0; \
} \
else if (res > 0) \
{ \
/* Suspended. */ \
b->suspended= 1; \
return b->ret_status; \
} \
else \
{ \
/* Finished. */ \
b->suspended= 0; \
*ret= b->ret_result. ok_val__; \
return 0; \
} \
} \
int STDCALL \
call__ ## _cont(ret_type__ *ret, cont_arg__, int ready_status) \
{ \
int res; \
struct mysql_async_context *b; \
\
b= (mysql_val__)->extension->async_context; \
if (!b || !b->suspended) \
{ \
set_mysql_error((mysql_val__), CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);\
*ret= err_val__; \
return 0; \
} \
\
b->active= 1; \
b->ret_status= ready_status; \
res= my_context_continue(&b->async_context); \
b->active= 0; \
if (res < 0) \
{ \
set_mysql_error((mysql_val__), CR_OUT_OF_MEMORY, unknown_sqlstate); \
b->suspended= 0; \
*ret= err_val__; \
return 0; \
} \
else if (res > 0) \
{ \
/* Suspended. */ \
return b->ret_status; \
} \
else \
{ \
/* Finished. */ \
b->suspended= 0; \
*ret= b->ret_result. ok_val__; \
return 0; \
} \
}
#define MK_ASYNC_CALLS_VOID_RETURN(call__, decl_args__, invoke_args__, cont_arg__, mysql_val__, parms_mysql_val__, parms_assign__, extra1__) \
static void \
call__ ## _start_internal(void *d) \
{ \
struct call__ ## _params *parms; \
struct mysql_async_context *b; \
\
parms= (struct call__ ## _params *)d; \
b= (parms_mysql_val__)->extension->async_context; \
\
call__ invoke_args__; \
b->ret_status= 0; \
} \
int STDCALL \
call__ ## _start decl_args__ \
{ \
int res; \
struct mysql_async_context *b; \
struct call__ ## _params parms; \
\
extra1__ \
if (!(b= mysql_get_async_context((mysql_val__)))) \
{ \
return 0; \
} \
parms_assign__ \
\
b->active= 1; \
res= my_context_spawn(&b->async_context, call__ ## _start_internal, &parms);\
b->active= 0; \
if (res < 0) \
{ \
set_mysql_error((mysql_val__), CR_OUT_OF_MEMORY, unknown_sqlstate); \
b->suspended= 0; \
return 0; \
} \
else if (res > 0) \
{ \
/* Suspended. */ \
b->suspended= 1; \
return b->ret_status; \
} \
else \
{ \
/* Finished. */ \
b->suspended= 0; \
return 0; \
} \
} \
int STDCALL \
call__ ## _cont(cont_arg__, int ready_status) \
{ \
int res; \
struct mysql_async_context *b; \
\
b= (mysql_val__)->extension->async_context; \
if (!b || !b->suspended) \
{ \
set_mysql_error((mysql_val__), CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);\
return 0; \
} \
\
b->active= 1; \
b->ret_status= ready_status; \
res= my_context_continue(&b->async_context); \
b->active= 0; \
if (res < 0) \
{ \
set_mysql_error((mysql_val__), CR_OUT_OF_MEMORY, unknown_sqlstate); \
b->suspended= 0; \
return 0; \
} \
else if (res > 0) \
{ \
/* Suspended. */ \
return b->ret_status; \
} \
else \
{ \
/* Finished. */ \
b->suspended= 0; \
return 0; \
} \
}
struct mysql_real_connect_params {
MYSQL *mysql;
const char *host;
const char *user;
const char *passwd;
const char *db;
unsigned int port;
const char *unix_socket;
unsigned long client_flags;
};
MK_ASYNC_CALLS(
mysql_real_connect,
(MYSQL **ret, MYSQL *mysql, const char *host, const char *user,
const char *passwd, const char *db, unsigned int port,
const char *unix_socket, unsigned long client_flags),
(parms->mysql, parms->host, parms->user, parms->passwd, parms->db,
parms->port, parms->unix_socket, parms->client_flags),
MYSQL *mysql,
mysql,
parms->mysql,
{
parms.mysql= mysql;
parms.host= host;
parms.user= user;
parms.passwd= passwd;
parms.db= db;
parms.port= port;
parms.unix_socket= unix_socket;
parms.client_flags= client_flags;
},
MYSQL *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_real_query_params {
MYSQL *mysql;
const char *stmt_str;
unsigned long length;
};
MK_ASYNC_CALLS(
mysql_real_query,
(int *ret, MYSQL *mysql, const char *stmt_str, unsigned long length),
(parms->mysql, parms->stmt_str, parms->length),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.stmt_str= stmt_str;
parms.length= length;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_fetch_row_params {
MYSQL_RES *result;
};
MK_ASYNC_CALLS(
mysql_fetch_row,
(MYSQL_ROW *ret, MYSQL_RES *result),
(parms->result),
MYSQL_RES *result,
result->handle,
parms->result->handle,
{
WIN_SET_NONBLOCKING(result->handle)
parms.result= result;
},
MYSQL_ROW,
NULL,
r_ptr,
/*
If we already fetched all rows from server (eg. mysql_store_result()),
then result->handle will be NULL and we cannot suspend. But that is fine,
since in this case mysql_fetch_row cannot block anyway. Just return
directly.
*/
if (!result->handle)
{
*ret= mysql_fetch_row(result);
return 0;
}
)
struct mysql_set_character_set_params {
MYSQL *mysql;
const char *csname;
};
MK_ASYNC_CALLS(
mysql_set_character_set,
(int *ret, MYSQL *mysql, const char *csname),
(parms->mysql, parms->csname),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.csname= csname;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_select_db_params {
MYSQL *mysql;
const char *db;
};
MK_ASYNC_CALLS(
mysql_select_db,
(int *ret, MYSQL *mysql, const char *db),
(parms->mysql, parms->db),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.db= db;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_send_query_params {
MYSQL *mysql;
const char *q;
unsigned long length;
};
MK_ASYNC_CALLS(
mysql_send_query,
(int *ret, MYSQL *mysql, const char *q, unsigned long length),
(parms->mysql, parms->q, parms->length),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.q= q;
parms.length= length;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_store_result_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_store_result,
(MYSQL_RES **ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
MYSQL_RES *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_free_result_params {
MYSQL_RES *result;
};
MK_ASYNC_CALLS_VOID_RETURN(
mysql_free_result,
(MYSQL_RES *result),
(parms->result),
MYSQL_RES *result,
result->handle,
parms->result->handle,
{
WIN_SET_NONBLOCKING(result->handle)
parms.result= result;
},
/*
mysql_free_result() can have NULL in result->handle (this happens when all
rows have been fetched and mysql_fetch_row() returned NULL.)
So we cannot suspend, but it does not matter, as in this case
mysql_free_result() cannot block.
It is also legitimate to have NULL result, which will do nothing.
*/
if (!result || !result->handle)
{
mysql_free_result(result);
return 0;
})
struct mysql_pre_close_params {
MYSQL *sock;
};
/*
We need special handling for mysql_close(), as the first part may block,
while the last part needs to free our extra library context stack.
So we do the first part (mysql_pre_close()) non-blocking, but the last part
blocking.
*/
extern void mysql_pre_close(MYSQL *mysql);
MK_ASYNC_CALLS_VOID_RETURN(
mysql_pre_close,
(MYSQL *sock),
(parms->sock),
MYSQL *sock,
sock,
parms->sock,
{
WIN_SET_NONBLOCKING(sock)
parms.sock= sock;
},
/* Nothing */)
int STDCALL
mysql_close_start(MYSQL *sock)
{
int res;
/* It is legitimate to have NULL sock argument, which will do nothing. */
if (sock)
{
res= mysql_pre_close_start(sock);
/* If we need to block, return now and do the rest in mysql_close_cont(). */
if (res)
return res;
}
mysql_close(sock);
return 0;
}
int STDCALL
mysql_close_cont(MYSQL *sock, int ready_status)
{
int res;
res= mysql_pre_close_cont(sock, ready_status);
if (res)
return res;
mysql_close(sock);
return 0;
}
#ifdef USE_OLD_FUNCTIONS
struct mysql_connect_params {
MYSQL *mysql;
const char *host;
const char *user;
const char *passwd;
};
MK_ASYNC_CALLS(
mysql_connect,
(MYSQL **ret, MYSQL *mysql, const char *host, const char *user, const char *passwd),
(parms->mysql, parms->host, parms->user, parms->passwd),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.host= host;
parms.user= user;
parms.passwd= passwd;
},
MYSQL *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_create_db_params {
MYSQL *mysql;
const char *DB;
};
MK_ASYNC_CALLS(
mysql_create_db,
(int *ret, MYSQL *mysql, const char *DB),
(parms->mysql, parms->DB),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.DB= DB;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_drop_db_params {
MYSQL *mysql;
const char *DB;
};
MK_ASYNC_CALLS(
mysql_drop_db,
(int *ret, MYSQL *mysql, const char *DB),
(parms->mysql, parms->DB),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.DB= DB;
},
int,
1,
r_int,
/* Nothing */)
#endif
/*
These following are not available inside the server (neither blocking or
non-blocking).
*/
#ifndef MYSQL_SERVER
struct mysql_change_user_params {
MYSQL *mysql;
const char *user;
const char *passwd;
const char *db;
};
MK_ASYNC_CALLS(
mysql_change_user,
(my_bool *ret, MYSQL *mysql, const char *user, const char *passwd, const char *db),
(parms->mysql, parms->user, parms->passwd, parms->db),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.user= user;
parms.passwd= passwd;
parms.db= db;
},
my_bool,
TRUE,
r_my_bool,
/* Nothing */)
struct mysql_query_params {
MYSQL *mysql;
const char *q;
};
MK_ASYNC_CALLS(
mysql_query,
(int *ret, MYSQL *mysql, const char *q),
(parms->mysql, parms->q),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.q= q;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_shutdown_params {
MYSQL *mysql;
enum mysql_enum_shutdown_level shutdown_level;
};
MK_ASYNC_CALLS(
mysql_shutdown,
(int *ret, MYSQL *mysql, enum mysql_enum_shutdown_level shutdown_level),
(parms->mysql, parms->shutdown_level),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.shutdown_level= shutdown_level;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_dump_debug_info_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_dump_debug_info,
(int *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_refresh_params {
MYSQL *mysql;
unsigned int refresh_options;
};
MK_ASYNC_CALLS(
mysql_refresh,
(int *ret, MYSQL *mysql, unsigned int refresh_options),
(parms->mysql, parms->refresh_options),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.refresh_options= refresh_options;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_kill_params {
MYSQL *mysql;
unsigned long pid;
};
MK_ASYNC_CALLS(
mysql_kill,
(int *ret, MYSQL *mysql, unsigned long pid),
(parms->mysql, parms->pid),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.pid= pid;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_set_server_option_params {
MYSQL *mysql;
enum enum_mysql_set_option option;
};
MK_ASYNC_CALLS(
mysql_set_server_option,
(int *ret, MYSQL *mysql, enum enum_mysql_set_option option),
(parms->mysql, parms->option),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.option= option;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_ping_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_ping,
(int *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
int,
1,
r_int,
/* Nothing */)
struct mysql_stat_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_stat,
(const char **ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
const char *,
NULL,
r_const_ptr,
/* Nothing */)
struct mysql_list_dbs_params {
MYSQL *mysql;
const char *wild;
};
MK_ASYNC_CALLS(
mysql_list_dbs,
(MYSQL_RES **ret, MYSQL *mysql, const char *wild),
(parms->mysql, parms->wild),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.wild= wild;
},
MYSQL_RES *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_list_tables_params {
MYSQL *mysql;
const char *wild;
};
MK_ASYNC_CALLS(
mysql_list_tables,
(MYSQL_RES **ret, MYSQL *mysql, const char *wild),
(parms->mysql, parms->wild),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.wild= wild;
},
MYSQL_RES *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_list_processes_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_list_processes,
(MYSQL_RES **ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
MYSQL_RES *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_list_fields_params {
MYSQL *mysql;
const char *table;
const char *wild;
};
MK_ASYNC_CALLS(
mysql_list_fields,
(MYSQL_RES **ret, MYSQL *mysql, const char *table, const char *wild),
(parms->mysql, parms->table, parms->wild),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.table= table;
parms.wild= wild;
},
MYSQL_RES *,
NULL,
r_ptr,
/* Nothing */)
struct mysql_read_query_result_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_read_query_result,
(my_bool *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
my_bool,
TRUE,
r_my_bool,
/* Nothing */)
struct mysql_stmt_prepare_params {
MYSQL_STMT *stmt;
const char *query;
unsigned long length;
};
MK_ASYNC_CALLS(
mysql_stmt_prepare,
(int *ret, MYSQL_STMT *stmt, const char *query, unsigned long length),
(parms->stmt, parms->query, parms->length),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
parms.query= query;
parms.length= length;
},
int,
1,
r_int,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_prepare(stmt, query, length);
return 0;
})
struct mysql_stmt_execute_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_execute,
(int *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
int,
1,
r_int,
/*
If eg. mysql_change_user(), stmt->mysql will be NULL.
In this case, we cannot block.
*/
if (!stmt->mysql)
{
*ret= mysql_stmt_execute(stmt);
return 0;
})
struct mysql_stmt_fetch_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_fetch,
(int *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
int,
1,
r_int,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_fetch(stmt);
return 0;
})
struct mysql_stmt_store_result_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_store_result,
(int *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
int,
1,
r_int,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_store_result(stmt);
return 0;
})
struct mysql_stmt_close_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_close,
(my_bool *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
my_bool,
TRUE,
r_my_bool,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_close(stmt);
return 0;
})
struct mysql_stmt_reset_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_reset,
(my_bool *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
my_bool,
TRUE,
r_my_bool,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_reset(stmt);
return 0;
})
struct mysql_stmt_free_result_params {
MYSQL_STMT *stmt;
};
MK_ASYNC_CALLS(
mysql_stmt_free_result,
(my_bool *ret, MYSQL_STMT *stmt),
(parms->stmt),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
},
my_bool,
TRUE,
r_my_bool,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_free_result(stmt);
return 0;
})
struct mysql_stmt_send_long_data_params {
MYSQL_STMT *stmt;
unsigned int param_number;
const char *data;
unsigned long length;
};
MK_ASYNC_CALLS(
mysql_stmt_send_long_data,
(my_bool *ret, MYSQL_STMT *stmt, unsigned int param_number, const char *data, unsigned long length),
(parms->stmt, parms->param_number, parms->data, parms->length),
MYSQL_STMT *stmt,
stmt->mysql,
parms->stmt->mysql,
{
WIN_SET_NONBLOCKING(stmt->mysql)
parms.stmt= stmt;
parms.param_number= param_number;
parms.data= data;
parms.length= length;
},
my_bool,
TRUE,
r_my_bool,
/* If stmt->mysql==NULL then we will not block so can call directly. */
if (!stmt->mysql)
{
*ret= mysql_stmt_send_long_data(stmt, param_number, data, length);
return 0;
})
struct mysql_commit_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_commit,
(my_bool *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
my_bool,
TRUE,
r_my_bool,
/* Nothing */)
struct mysql_rollback_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_rollback,
(my_bool *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
my_bool,
TRUE,
r_my_bool,
/* Nothing */)
struct mysql_autocommit_params {
MYSQL *mysql;
my_bool auto_mode;
};
MK_ASYNC_CALLS(
mysql_autocommit,
(my_bool *ret, MYSQL *mysql, my_bool auto_mode),
(parms->mysql, parms->auto_mode),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
parms.auto_mode= auto_mode;
},
my_bool,
TRUE,
r_my_bool,
/* Nothing */)
struct mysql_next_result_params {
MYSQL *mysql;
};
MK_ASYNC_CALLS(
mysql_next_result,
(int *ret, MYSQL *mysql),
(parms->mysql),
MYSQL *mysql,
mysql,
parms->mysql,
{
WIN_SET_NONBLOCKING(mysql)
parms.mysql= mysql;
},
int,
1,
r_int,
/* Nothing */)
#endif
/*
The following functions can newer block, and so do not have special
non-blocking versions:
mysql_num_rows()
mysql_num_fields()
mysql_eof()
mysql_fetch_field_direct()
mysql_fetch_fields()
mysql_row_tell()
mysql_field_tell()
mysql_field_count()
mysql_affected_rows()
mysql_insert_id()
mysql_errno()
mysql_error()
mysql_sqlstate()
mysql_warning_count()
mysql_info()
mysql_thread_id()
mysql_character_set_name()
mysql_init()
mysql_ssl_set()
mysql_get_ssl_cipher()
mysql_use_result()
mysql_get_character_set_info()
mysql_set_local_infile_handler()
mysql_set_local_infile_default()
mysql_get_server_info()
mysql_get_server_name()
mysql_get_client_info()
mysql_get_client_version()
mysql_get_host_info()
mysql_get_server_version()
mysql_get_proto_info()
mysql_options()
mysql_data_seek()
mysql_row_seek()
mysql_field_seek()
mysql_fetch_lengths()
mysql_fetch_field()
mysql_escape_string()
mysql_hex_string()
mysql_real_escape_string()
mysql_debug()
myodbc_remove_escape()
mysql_thread_safe()
mysql_embedded()
mariadb_connection()
mysql_stmt_init()
mysql_stmt_fetch_column()
mysql_stmt_param_count()
mysql_stmt_attr_set()
mysql_stmt_attr_get()
mysql_stmt_bind_param()
mysql_stmt_bind_result()
mysql_stmt_result_metadata()
mysql_stmt_param_metadata()
mysql_stmt_errno()
mysql_stmt_error()
mysql_stmt_sqlstate()
mysql_stmt_row_seek()
mysql_stmt_row_tell()
mysql_stmt_data_seek()
mysql_stmt_num_rows()
mysql_stmt_affected_rows()
mysql_stmt_insert_id()
mysql_stmt_field_count()
mysql_more_results()
mysql_get_socket()
mysql_get_timeout_value()
*/
sql/CMakeLists.txt
View file @ a5b88159
......@@ -53,6 +53,7 @@ SET (SQL_SOURCE
log_event_old.cc rpl_record_old.cc
message.h mf_iocache.cc my_decimal.cc ../sql-common/my_time.c
mysqld.cc net_serv.cc ../sql-common/client_plugin.c
../sql-common/mysql_async.c
nt_servc.cc nt_servc.h opt_range.cc opt_range.h opt_sum.cc
../sql-common/pack.c parse_file.cc password.c procedure.cc
protocol.cc records.cc repl_failsafe.cc rpl_filter.cc set_var.cc
......
sql/Makefile.am
View file @ a5b88159
......@@ -127,7 +127,8 @@ mysqld_SOURCES = sql_lex.cc sql_handler.cc sql_partition.cc \
sql_servers.cc event_parse_data.cc \
opt_table_elimination.cc create_options.cc
nodist_mysqld_SOURCES = mini_client_errors.c pack.c client.c my_time.c my_user.c client_plugin.c
nodist_mysqld_SOURCES = mini_client_errors.c pack.c client.c my_time.c \
my_user.c client_plugin.c mysql_async.c
libndb_la_CPPFLAGS= @ndbcluster_includes@
libndb_la_SOURCES= ha_ndbcluster.cc \
......@@ -169,6 +170,8 @@ link_sources:
@LN_CP_F@ $(top_srcdir)/sql-common/pack.c pack.c
rm -f client.c
@LN_CP_F@ $(top_srcdir)/sql-common/client.c client.c
rm -f mysql_async.c
@LN_CP_F@ $(top_srcdir)/sql-common/mysql_async.c mysql_async.c
rm -f client_plugin.c
@LN_CP_F@ $(top_srcdir)/sql-common/client_plugin.c client_plugin.c
rm -f my_time.c
......
tests/Makefile.am
View file @ a5b88159
......@@ -24,6 +24,7 @@ else
LIBMYSQLCLIENT_LA = $(top_builddir)/libmysql/libmysqlclient.la
endif
noinst_HEADERS = nonblock-wrappers.h
EXTRA_DIST = auto_increment.res auto_increment.tst \
function.res function.tst lock_test.pl lock_test.res \
export.pl big_record.pl \
......@@ -36,6 +37,9 @@ EXTRA_DIST = auto_increment.res auto_increment.tst \
bin_PROGRAMS = mysql_client_test
noinst_PROGRAMS = insert_test select_test thread_test bug25714
if HAVE_LIBEVENT
noinst_PROGRAMS += async_queries
endif
INCLUDES = -I$(top_builddir)/include -I$(top_srcdir)/include \
$(openssl_includes)
......@@ -52,6 +56,10 @@ select_test_SOURCES= select_test.c
insert_test_DEPENDENCIES= $(LIBRARIES) $(pkglib_LTLIBRARIES)
select_test_DEPENDENCIES= $(LIBRARIES) $(pkglib_LTLIBRARIES)
async_queries_SOURCES= async_queries.c
async_queries_CFLAGS= $(AM_CFLAGS) @libevent_includes@
async_queries_LDADD= $(LDADD) @libevent_libs@
bug25714_SOURCES= bug25714.c
bug25714_DEPENDENCIES= $(LIBRARIES) $(pkglib_LTLIBRARIES)
......
tests/async_queries.c 0 → 100644
View file @ a5b88159
/*
Copyright 2011 Kristian Nielsen and Monty Program Ab.
Experiments with non-blocking libmysql.
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Run a set of queries in parallel against a server using the non-blocking
API, and compare to running same queries with the normal blocking API.
*/
#include <sys/time.h>
#include <event.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <my_global.h>
#include <my_sys.h>
#include <mysql.h>
#include <my_getopt.h>
#define SL(s) (s), sizeof(s)
static const char *my_groups[]= { "client", NULL };
/* Maintaining a list of queries to run. */
struct query_entry {
struct query_entry *next;
char *query;
int index;
};
static struct query_entry *query_list;
static struct query_entry **tail_ptr= &query_list;
static int query_counter= 0;
/* State kept for each connection. */
struct state_data {
int ST; /* State machine current state */
struct event ev_mysql;
MYSQL mysql;
MYSQL_RES *result;
MYSQL *ret;
int err;
MYSQL_ROW row;
struct query_entry *query_element;
int index;
};
static const char *opt_db= NULL;
static const char *opt_user= NULL;
static const char *opt_password= NULL;
static int tty_password= 0;
static const char *opt_host= NULL;
static const char *opt_socket= NULL;
static unsigned int opt_port= 0;
static unsigned int opt_connections= 5;
static const char *opt_query_file= NULL;
static struct my_option options[] =
{
{"database", 'D', "Database to use", &opt_db, &opt_db,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"help", '?', "Display this help and exit", 0, 0, 0, GET_NO_ARG, NO_ARG, 0,
0, 0, 0, 0, 0},
{"host", 'h', "Connect to host", &opt_host, &opt_host,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"password", 'p',
"Password to use when connecting to server. If password is not given it's asked from the tty.",
0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
{"port", 'P', "Port number to use for connection.",
&opt_port, &opt_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"socket", 'S', "Socket file to use for connection",
&opt_socket, &opt_socket, 0, GET_STR,
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"user", 'u', "User for login if not current user", &opt_user,
&opt_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"connections", 'n', "Number of simultaneous connections/queries.",
&opt_connections, &opt_connections, 0, GET_UINT, REQUIRED_ARG,
0, 0, 0, 0, 0, 0},
{"queryfile", 'q', "Name of file containing extra queries to run",
&opt_query_file, &opt_query_file, 0, GET_STR, REQUIRED_ARG,
0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
static void
fatal(struct state_data *sd, const char *msg)
{
fprintf(stderr, "%s: %s\n", msg, (sd ? mysql_error(&sd->mysql) : ""));
exit(1);
}
static void state_machine_handler(int fd, short event, void *arg);
static void
next_event(int new_st, int status, struct state_data *sd)
{
short wait_event= 0;
struct timeval tv, *ptv;
int fd;
if (status & MYSQL_WAIT_READ)
wait_event|= EV_READ;
if (status & MYSQL_WAIT_WRITE)
wait_event|= EV_WRITE;
if (wait_event)
fd= mysql_get_socket(&sd->mysql);
else
fd= -1;
if (status & MYSQL_WAIT_TIMEOUT)
{
tv.tv_sec= mysql_get_timeout_value(&sd->mysql);
tv.tv_usec= 0;
ptv= &tv;
}
else
ptv= NULL;
event_set(&sd->ev_mysql, fd, wait_event, state_machine_handler, sd);
event_add(&sd->ev_mysql, ptv);
sd->ST= new_st;
}
static int
mysql_status(short event)
{
int status= 0;
if (event & EV_READ)
status|= MYSQL_WAIT_READ;
if (event & EV_WRITE)
status|= MYSQL_WAIT_WRITE;
if (event & EV_TIMEOUT)
status|= MYSQL_WAIT_TIMEOUT;
return status;
}
static int num_active_connections;
/* Shortcut for going to new state immediately without waiting. */
#define NEXT_IMMEDIATE(sd_, new_st) do { sd_->ST= new_st; goto again; } while (0)
static void
state_machine_handler(int fd __attribute__((unused)), short event, void *arg)
{
struct state_data *sd= arg;
int status;
again:
switch(sd->ST)
{
case 0:
/* Initial state, start making the connection. */
status= mysql_real_connect_start(&sd->ret, &sd->mysql, opt_host, opt_user, opt_password, opt_db, opt_port, opt_socket, 0);
if (status)
/* Wait for connect to complete. */
next_event(1, status, sd);
else
NEXT_IMMEDIATE(sd, 9);
break;
case 1:
status= mysql_real_connect_cont(&sd->ret, &sd->mysql, mysql_status(event));
if (status)
next_event(1, status, sd);
else
NEXT_IMMEDIATE(sd, 9);
break;
case 9:
if (!sd->ret)
fatal(sd, "Failed to mysql_real_connect()");
NEXT_IMMEDIATE(sd, 10);
break;
case 10:
/* Now run the next query. */
sd->query_element= query_list;
if (!sd->query_element)
{
/* No more queries, end the connection. */
NEXT_IMMEDIATE(sd, 40);
}
query_list= query_list->next;
sd->index= sd->query_element->index;
printf("%d ! %s\n", sd->index, sd->query_element->query);
status= mysql_real_query_start(&sd->err, &sd->mysql, sd->query_element->query,
strlen(sd->query_element->query));
if (status)
next_event(11, status, sd);
else
NEXT_IMMEDIATE(sd, 20);
break;
case 11:
status= mysql_real_query_cont(&sd->err, &sd->mysql, mysql_status(event));
if (status)
next_event(11, status, sd);
else
NEXT_IMMEDIATE(sd, 20);
break;
case 20:
free(sd->query_element->query);
free(sd->query_element);
if (sd->err)
{
printf("%d | Error: %s\n", sd->index, mysql_error(&sd->mysql));
NEXT_IMMEDIATE(sd, 10);
}
else
{
sd->result= mysql_use_result(&sd->mysql);
if (!sd->result)
fatal(sd, "mysql_use_result() returns error");
NEXT_IMMEDIATE(sd, 30);
}
break;
case 30:
status= mysql_fetch_row_start(&sd->row, sd->result);
if (status)
next_event(31, status, sd);
else
NEXT_IMMEDIATE(sd, 39);
break;
case 31:
status= mysql_fetch_row_cont(&sd->row, sd->result, mysql_status(event));
if (status)
next_event(31, status, sd);
else
NEXT_IMMEDIATE(sd, 39);
break;
case 39:
if (sd->row)
{
/* Got a row. */
unsigned int i;
printf("%d - ", sd->index);
for (i= 0; i < mysql_num_fields(sd->result); i++)
printf("%s%s", (i ? "\t" : ""), (sd->row[i] ? sd->row[i] : "(null)"));
printf ("\n");
NEXT_IMMEDIATE(sd, 30);
}
else
{
if (mysql_errno(&sd->mysql))
{
/* An error occured. */
printf("%d | Error: %s\n", sd->index, mysql_error(&sd->mysql));
}
else
{
/* EOF. */
printf("%d | EOF\n", sd->index);
}
mysql_free_result(sd->result);
NEXT_IMMEDIATE(sd, 10);
}
break;
case 40:
status= mysql_close_start(&sd->mysql);
if (status)
next_event(41, status, sd);
else
NEXT_IMMEDIATE(sd, 50);
break;
case 41:
status= mysql_close_cont(&sd->mysql, mysql_status(event));
if (status)
next_event(41, status, sd);
else
NEXT_IMMEDIATE(sd, 50);
break;
case 50:
/* We are done! */
num_active_connections--;
if (num_active_connections == 0)
event_loopbreak();
break;
default:
abort();
}
}
void
add_query(const char *q)
{
struct query_entry *e;
char *q2;
size_t len;
e= malloc(sizeof(*e));
q2= strdup(q);
if (!e || !q2)
fatal(NULL, "Out of memory");
/* Remove any trailing newline. */
len= strlen(q2);
if (q2[len] == '\n')
q2[len--]= '\0';
if (q2[len] == '\r')
q2[len--]= '\0';
e->next= NULL;
e->query= q2;
e->index= query_counter++;
*tail_ptr= e;
tail_ptr= &e->next;
}
static my_bool
handle_option(int optid, const struct my_option *opt __attribute__((unused)),
char *arg)
{
switch (optid)
{
case '?':
printf("Usage: async_queries [OPTIONS] query ...\n");
my_print_help(options);
my_print_variables(options);
exit(0);
break;
case 'p':
if (arg)
opt_password= arg;
else
tty_password= 1;
break;
}
return 0;
}
int
main(int argc, char *argv[])
{
struct state_data *sds;
unsigned int i;
int err;
struct event_base *libevent_base;
err= handle_options(&argc, &argv, options, handle_option);
if (err)
exit(err);
if (tty_password)
opt_password= get_tty_password(NullS);
if (opt_query_file)
{
FILE *f= fopen(opt_query_file, "r");
char buf[65536];
if (!f)
fatal(NULL, "Cannot open query file");
while (!feof(f))
{
if (!fgets(buf, sizeof(buf), f))
break;
add_query(buf);
}
fclose(f);
}
/* Add extra queries directly on command line. */
while (argc > 0)
{
--argc;
add_query(*argv++);
}
sds= malloc(opt_connections * sizeof(*sds));
if (!sds)
fatal(NULL, "Out of memory");
libevent_base= event_init();
err= mysql_library_init(argc, argv, (char **)my_groups);
if (err)
{
fprintf(stderr, "Fatal: mysql_library_init() returns error: %d\n", err);
exit(1);
}
num_active_connections= 0;
for (i= 0; i < opt_connections; i++)
{
mysql_init(&sds[i].mysql);
mysql_options(&sds[i].mysql, MYSQL_READ_DEFAULT_GROUP, "async_queries");
/*
We put the initial connect call in the first state 0 of the state machine
and run that manually, just to have everything in one place.
*/
sds[i].ST= 0;
num_active_connections++;
state_machine_handler(-1, -1, &sds[i]);
}
event_dispatch();
free(sds);
mysql_library_end();
event_base_free(libevent_base);
return 0;
}
tests/check_async_queries.pl 0 → 100644
View file @ a5b88159
#! /usr/bin/perl
# Read the output of async_queries.c. Run the queries again serially, using
# the normal (not asynchronous) API. Compare the two results for correctness.
use strict;
use warnings;
use DBI;
my $D= [];
die "Usage: $0 <host> <user> <password> <database>\n"
unless @ARGV == 4;
my $dbh= DBI->connect("DBI:mysql:database=$ARGV[3];host=$ARGV[0]",
$ARGV[1], $ARGV[2],
{ RaiseError => 1, PrintError => 0 });
while (<STDIN>) {
chomp;
if (/^([0-9]+) ! (.*);$/) {
my ($index, $query)= ($1, $2);
$D->[$index]= { QUERY => $query, OUTPUT => [] };
} elsif (/^([0-9]+) - (.*)$/) {
my ($index, $data)= ($1, $2);
push @{$D->[$index]{OUTPUT}}, $data;
} elsif (/^([0-9]+) \| Error: (.*)$/) {
my ($index, $errmsg)= ($1, $2);
my $rows;
my $res= eval {
my $stm= $dbh->prepare($D->[$index]{QUERY});
$stm->execute();
$rows= $stm->fetchall_arrayref();
1;
};
if ($res) {
die "Query $index succeeded, but should have failed with error.\nquery=$D->[$index]{QUERY}\nerror=$errmsg\n";
}
my $errmsg2= $@;
if ($errmsg2 =~ /^DBD::.*failed: (.*) at .*$/s) {
$errmsg2= $1;
} else {
die "Unexpected DBD error message format: '$errmsg2'\n";
}
if ($errmsg2 ne $errmsg) {
die "Query $index failed with different error message\nquery=$D->[$index]{QUERY}\nerror1=$errmsg\nerror2=$errmsg2\n";
}
print "OK $index\n";
delete $D->[$index];
} elsif (/^([0-9]+) \| EOF$/) {
my $index= $1;
my $rows;
my $res= eval {
my $stm= $dbh->prepare($D->[$index]{QUERY});
$stm->execute();
$rows= $stm->fetchall_arrayref();
1;
};
if (!$res) {
die "Query $index failed, but should have succeeded.\nquery=$D->[$index]{QUERY}\nerror=$@\n";
}
my $result_string= join("\n", sort @{$D->[$index]{OUTPUT}});
my $result_string2= join("\n", sort(map(join("\t", map((defined($_) ? $_ : "(null)"), @$_)), @$rows)));
if ($result_string ne $result_string2) {
die "Query $index result difference.\nquery=$D->[$index]{QUERY}\noutput1=\n$$result_string\noutput2=\n$result_string2\n";
}
delete $D->[$index];
} else {
die "Unexpected line: '$_'\n";
}
}
$dbh->disconnect();
tests/mysql_client_test.c
View file @ a5b88159
......@@ -36,6 +36,18 @@
#include <my_handler.h>
#include <sql_common.h>
/*
If non_blocking_api_enabled is true, we will re-define all the blocking
API functions as wrappers that call the corresponding non-blocking API
and use poll()/select() to wait for them to complete. This way we can get
a good coverage testing of the non-blocking API as well.
*/
static my_bool non_blocking_api_enabled= 0;
#if !defined(EMBEDDED_LIBRARY)
#define WRAP_NONBLOCK_ENABLED non_blocking_api_enabled
#include "nonblock-wrappers.h"
#endif
#define VER "2.1"
#define MAX_TEST_QUERY_LENGTH 300 /* MAX QUERY BUFFER LENGTH */
#define MAX_KEY MAX_INDEXES
......@@ -18614,6 +18626,10 @@ static struct my_option client_test_long_options[] =
#endif
{"vardir", 'v', "Data dir for tests.", (char**) &opt_vardir,
(char**) &opt_vardir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"non-blocking-api", 'n',
"Use the non-blocking client API for communication.",
&non_blocking_api_enabled, &non_blocking_api_enabled, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"getopt-ll-test", 'g', "Option for testing bug in getopt library",
&opt_getopt_ll_test, &opt_getopt_ll_test, 0,
GET_LL, REQUIRED_ARG, 0, 0, LONGLONG_MAX, 0, 0, 0},
......
tests/nonblock-wrappers.h 0 → 100644
View file @ a5b88159
/* Copyright (c) 2011 Monty Program Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Wrappers that re-implement the normal blocking libmysql API calls in terms
of the non-blocking API calls and explicit waiting.
Used to test the non-blocking calls using mysql_client_test.
*/
#ifndef __WIN__
#include <poll.h>
#else
#include <WinSock2.h>
#endif
/*
Run the appropriate poll() syscall to wait for the event that libmysql
requested. Return which event(s) occured.
*/
static int
wait_for_mysql(MYSQL *mysql, int status)
{
#ifdef __WIN__
fd_set rs, ws, es;
int res;
struct timeval tv, *timeout;
my_socket s= mysql_get_socket(mysql);
FD_ZERO(&rs);
FD_ZERO(&ws);
FD_ZERO(&es);
if (status & MYSQL_WAIT_READ)
FD_SET(s, &rs);
if (status & MYSQL_WAIT_WRITE)
FD_SET(s, &ws);
if (status & MYSQL_WAIT_EXCEPT)
FD_SET(s, &es);
if (status & MYSQL_WAIT_TIMEOUT)
{
tv.tv_sec= mysql_get_timeout_value(mysql);
tv.tv_usec= 0;
timeout= &tv;
}
else
timeout= NULL;
res= select(1, &rs, &ws, &es, timeout);
if (res == 0)
return MYSQL_WAIT_TIMEOUT;
else if (res == SOCKET_ERROR)
return MYSQL_WAIT_TIMEOUT;
else
{
int status= 0;
if (FD_ISSET(s, &rs))
status|= MYSQL_WAIT_READ;
if (FD_ISSET(s, &ws))
status|= MYSQL_WAIT_WRITE;
if (FD_ISSET(s, &es))
status|= MYSQL_WAIT_EXCEPT;
return status;
}
#else
struct pollfd pfd;
int timeout;
int res;
pfd.fd= mysql_get_socket(mysql);
pfd.events=
(status & MYSQL_WAIT_READ ? POLLIN : 0) |
(status & MYSQL_WAIT_WRITE ? POLLOUT : 0) |
(status & MYSQL_WAIT_EXCEPT ? POLLPRI : 0);
if (status & MYSQL_WAIT_TIMEOUT)
timeout= 1000*mysql_get_timeout_value(mysql);
else
timeout= -1;
do {
res= poll(&pfd, 1, timeout);
/*
In a real event framework, we should re-compute the timeout on getting
EINTR to account for the time elapsed before the interruption.
*/
} while (res < 0 && errno == EINTR);
if (res == 0)
return MYSQL_WAIT_TIMEOUT;
else if (res < 0)
return MYSQL_WAIT_TIMEOUT;
else
{
int status= 0;
if (pfd.revents & POLLIN)
status|= MYSQL_WAIT_READ;
if (pfd.revents & POLLOUT)
status|= MYSQL_WAIT_WRITE;
if (pfd.revents & POLLPRI)
status|= MYSQL_WAIT_EXCEPT;
return status;
}
#endif
}
/*
If WRAP_NONBLOCK_ENABLED is defined, it is a variable that can be used to
enable or disable the use of non-blocking API wrappers. If true the
non-blocking API will be used, if false the normal blocking API will be
called directly.
*/
#ifdef WRAP_NONBLOCK_ENABLED
#define USE_BLOCKING(name__, invoke_blocking__) \
if (!(WRAP_NONBLOCK_ENABLED)) return name__ invoke_blocking__;
#define USE_BLOCKING_VOID_RETURN(name__, invoke__) \
if (!(WRAP_NONBLOCK_ENABLED)) { name__ invoke__; return; }
#else
#define USE_BLOCKING(name__, invoke_blocking__)
#define USE_BLOCKING_VOID_RETURN(name__, invoke__)
#endif
/*
I would preferably have declared the wrappers static.
However, if we do so, compilers will warn about definitions not used, and
with -Werror this breaks compilation :-(
*/
#define MK_WRAPPER(ret_type__, name__, decl__, invoke__, invoke_blocking__, cont_arg__, mysql__) \
ret_type__ wrap_ ## name__ decl__ \
{ \
ret_type__ res; \
int status; \
USE_BLOCKING(name__, invoke_blocking__) \
status= name__ ## _start invoke__; \
while (status) \
{ \
status= wait_for_mysql(mysql__, status); \
status= name__ ## _cont(&res, cont_arg__, status); \
} \
return res; \
}
#define MK_WRAPPER_VOID_RETURN(name__, decl__, invoke__, cont_arg__, mysql__) \
void wrap_ ## name__ decl__ \
{ \
int status; \
USE_BLOCKING_VOID_RETURN(name__, invoke__) \
status= name__ ## _start invoke__; \
while (status) \
{ \
status= wait_for_mysql(mysql__, status); \
status= name__ ## _cont(cont_arg__, status); \
} \
}
MK_WRAPPER(
MYSQL *,
mysql_real_connect,
(MYSQL *mysql, const char *host, const char *user, const char *passwd, const char *db, unsigned int port, const char *unix_socket, unsigned long clientflag),
(&res, mysql, host, user, passwd, db, port, unix_socket, clientflag),
(mysql, host, user, passwd, db, port, unix_socket, clientflag),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_real_query,
(MYSQL *mysql, const char *stmt_str, unsigned long length),
(&res, mysql, stmt_str, length),
(mysql, stmt_str, length),
mysql,
mysql)
MK_WRAPPER(
MYSQL_ROW,
mysql_fetch_row,
(MYSQL_RES *result),
(&res, result),
(result),
result,
result->handle)
MK_WRAPPER(
int,
mysql_set_character_set,
(MYSQL *mysql, const char *csname),
(&res, mysql, csname),
(mysql, csname),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_select_db,
(MYSQL *mysql, const char *db),
(&res, mysql, db),
(mysql, db),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_send_query,
(MYSQL *mysql, const char *q, unsigned long length),
(&res, mysql, q, length),
(mysql, q, length),
mysql,
mysql)
MK_WRAPPER(
MYSQL_RES *,
mysql_store_result,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER_VOID_RETURN(
mysql_free_result,
(MYSQL_RES *result),
(result),
result,
result->handle)
MK_WRAPPER_VOID_RETURN(
mysql_close,
(MYSQL *sock),
(sock),
sock,
sock)
MK_WRAPPER(
my_bool,
mysql_change_user,
(MYSQL *mysql, const char *user, const char *passwd, const char *db),
(&res, mysql, user, passwd, db),
(mysql, user, passwd, db),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_query,
(MYSQL *mysql, const char *q),
(&res, mysql, q),
(mysql, q),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_shutdown,
(MYSQL *mysql, enum mysql_enum_shutdown_level shutdown_level),
(&res, mysql, shutdown_level),
(mysql, shutdown_level),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_dump_debug_info,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_refresh,
(MYSQL *mysql, unsigned int refresh_options),
(&res, mysql, refresh_options),
(mysql, refresh_options),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_kill,
(MYSQL *mysql, unsigned long pid),
(&res, mysql, pid),
(mysql, pid),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_set_server_option,
(MYSQL *mysql, enum enum_mysql_set_option option),
(&res, mysql, option),
(mysql, option),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_ping,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
const char *,
mysql_stat,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
MYSQL_RES *,
mysql_list_dbs,
(MYSQL *mysql, const char *wild),
(&res, mysql, wild),
(mysql, wild),
mysql,
mysql)
MK_WRAPPER(
MYSQL_RES *,
mysql_list_tables,
(MYSQL *mysql, const char *wild),
(&res, mysql, wild),
(mysql, wild),
mysql,
mysql)
MK_WRAPPER(
MYSQL_RES *,
mysql_list_processes,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
MYSQL_RES *,
mysql_list_fields,
(MYSQL *mysql, const char *table, const char *wild),
(&res, mysql, table, wild),
(mysql, table, wild),
mysql,
mysql)
MK_WRAPPER(
my_bool,
mysql_read_query_result,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_stmt_prepare,
(MYSQL_STMT *stmt, const char *query, unsigned long length),
(&res, stmt, query, length),
(stmt, query, length),
stmt,
stmt->mysql)
MK_WRAPPER(
int,
mysql_stmt_execute,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
int,
mysql_stmt_fetch,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
int,
mysql_stmt_store_result,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
my_bool,
mysql_stmt_close,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
my_bool,
mysql_stmt_reset,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
my_bool,
mysql_stmt_free_result,
(MYSQL_STMT *stmt),
(&res, stmt),
(stmt),
stmt,
stmt->mysql)
MK_WRAPPER(
my_bool,
mysql_stmt_send_long_data,
(MYSQL_STMT *stmt, unsigned int param_number, const char *data, unsigned long length),
(&res, stmt, param_number, data, length),
(stmt, param_number, data, length),
stmt,
stmt->mysql)
MK_WRAPPER(
my_bool,
mysql_commit,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
my_bool,
mysql_rollback,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
MK_WRAPPER(
my_bool,
mysql_autocommit,
(MYSQL *mysql, my_bool auto_mode),
(&res, mysql, auto_mode),
(mysql, auto_mode),
mysql,
mysql)
MK_WRAPPER(
int,
mysql_next_result,
(MYSQL *mysql),
(&res, mysql),
(mysql),
mysql,
mysql)
#undef USE_BLOCKING
#undef MK_WRAPPER
#undef MK_WRAPPER_VOID_RETURN
#define mysql_real_connect wrap_mysql_real_connect
#define mysql_real_query wrap_mysql_real_query
#define mysql_fetch_row wrap_mysql_fetch_row
#define mysql_set_character_set wrap_mysql_set_character_set
#define mysql_select_db wrap_mysql_select_db
#define mysql_send_query wrap_mysql_send_query
#define mysql_store_result wrap_mysql_store_result
#define mysql_free_result wrap_mysql_free_result
#define mysql_close wrap_mysql_close
#define mysql_change_user wrap_mysql_change_user
#define mysql_query wrap_mysql_query
#define mysql_shutdown wrap_mysql_shutdown
#define mysql_dump_debug_info wrap_mysql_dump_debug_info
#define mysql_refresh wrap_mysql_refresh
#define mysql_kill wrap_mysql_kill
#define mysql_set_server_option wrap_mysql_set_server_option
#define mysql_ping wrap_mysql_ping
#define mysql_stat wrap_mysql_stat
#define mysql_list_dbs wrap_mysql_list_dbs
#define mysql_list_tables wrap_mysql_list_tables
#define mysql_list_processes wrap_mysql_list_processes
#define mysql_list_fields wrap_mysql_list_fields
#define mysql_read_query_result wrap_mysql_read_query_result
#define mysql_stmt_prepare wrap_mysql_stmt_prepare
#define mysql_stmt_execute wrap_mysql_stmt_execute
#define mysql_stmt_fetch wrap_mysql_stmt_fetch
#define mysql_stmt_store_result wrap_mysql_stmt_store_result
#define mysql_stmt_close wrap_mysql_stmt_close
#define mysql_stmt_reset wrap_mysql_stmt_reset
#define mysql_stmt_free_result wrap_mysql_stmt_free_result
#define mysql_stmt_send_long_data wrap_mysql_stmt_send_long_data
#define mysql_commit wrap_mysql_commit
#define mysql_rollback wrap_mysql_rollback
#define mysql_autocommit wrap_mysql_autocommit
#define mysql_next_result wrap_mysql_next_result
vio/viosocket.c
View file @ a5b88159
......@@ -21,6 +21,7 @@
*/
#include "vio_priv.h"
#include "my_context.h"
int vio_errno(Vio *vio __attribute__((unused)))
{
......@@ -31,18 +32,34 @@ int vio_errno(Vio *vio __attribute__((unused)))
size_t vio_read(Vio * vio, uchar* buf, size_t size)
{
size_t r;
extern ssize_t my_recv_async(struct mysql_async_context *b, int fd,
unsigned char *buf, size_t size, uint timeout);
DBUG_ENTER("vio_read");
DBUG_PRINT("enter", ("sd: %d buf: 0x%lx size: %u", vio->sd, (long) buf,
(uint) size));
/* Ensure nobody uses vio_read_buff and vio_read simultaneously */
DBUG_ASSERT(vio->read_end == vio->read_pos);
if (vio->async_context && vio->async_context->active)
r= my_recv_async(vio->async_context, vio->sd, buf, size, vio->read_timeout);
else
{
if (vio->async_context)
{
/*
If switching from non-blocking to blocking API usage, set the socket
back to blocking mode.
*/
my_bool old_mode;
vio_blocking(vio, TRUE, &old_mode);
}
#ifdef __WIN__
r = recv(vio->sd, buf, size,0);
#else
errno=0; /* For linux */
r = read(vio->sd, buf, size);
#endif /* __WIN__ */
}
#ifndef DBUG_OFF
if (r == (size_t) -1)
{
......@@ -102,14 +119,32 @@ size_t vio_read_buff(Vio *vio, uchar* buf, size_t size)
size_t vio_write(Vio * vio, const uchar* buf, size_t size)
{
size_t r;
extern ssize_t my_send_async(struct mysql_async_context *b, int fd,
const unsigned char *buf, size_t size,
uint timeout);
DBUG_ENTER("vio_write");
DBUG_PRINT("enter", ("sd: %d buf: 0x%lx size: %u", vio->sd, (long) buf,
(uint) size));
if (vio->async_context && vio->async_context->active)
r= my_send_async(vio->async_context, vio->sd, buf, size,
vio->write_timeout);
else
{
if (vio->async_context)
{
/*
If switching from non-blocking to blocking API usage, set the socket
back to blocking mode.
*/
my_bool old_mode;
vio_blocking(vio, TRUE, &old_mode);
}
#ifdef __WIN__
r = send(vio->sd, buf, size,0);
#else
r = write(vio->sd, buf, size);
#endif /* __WIN__ */
}
#ifndef DBUG_OFF
if (r == (size_t) -1)
{
......@@ -359,12 +394,17 @@ void vio_in_addr(Vio *vio, struct in_addr *in)
my_bool vio_poll_read(Vio *vio,uint timeout)
{
extern my_bool my_poll_read_async(struct mysql_async_context *b,
uint timeout);
#ifndef HAVE_POLL
#if __WIN__
int res;
struct fd_set fds;
struct timeval tv;
DBUG_ENTER("vio_poll");
if (vio->async_context && vio->async_context->active)
DBUG_RETURN(my_poll_read_async(vio->async_context, timeout));
fds.fd_count= 1;
fds.fd_array[0]= vio->sd;
tv.tv_sec= timeout;
......@@ -372,12 +412,16 @@ my_bool vio_poll_read(Vio *vio,uint timeout)
res= select(1, &fds, NULL, NULL, &tv) ? 0 : 1;
DBUG_RETURN(res);
#else
if (vio->async_context && vio->async_context->active)
return my_poll_read_async(vio->async_context, timeout);
return 0;
#endif
#else
struct pollfd fds;
int res;
DBUG_ENTER("vio_poll");
if (vio->async_context && vio->async_context->active)
DBUG_RETURN(my_poll_read_async(vio->async_context, timeout));
fds.fd=vio->sd;
fds.events=POLLIN;
fds.revents=0;
......@@ -425,6 +469,11 @@ void vio_timeout(Vio *vio, uint which, uint timeout)
thr_alarm or just run without read/write timeout(s)
*/
#endif
/* Make timeout values available for async operations. */
if (which)
vio->write_timeout= timeout;
else
vio->read_timeout= timeout;
}
......
vio/viossl.c
View file @ a5b88159
......@@ -21,6 +21,7 @@
*/
#include "vio_priv.h"
#include "my_context.h"
#ifdef HAVE_OPENSSL
......@@ -90,10 +91,15 @@ report_errors(SSL* ssl)
size_t vio_ssl_read(Vio *vio, uchar* buf, size_t size)
{
size_t r;
extern int my_ssl_read_async(struct mysql_async_context *b, SSL *ssl,
void *buf, int size);
DBUG_ENTER("vio_ssl_read");
DBUG_PRINT("enter", ("sd: %d buf: 0x%lx size: %u ssl: 0x%lx",
vio->sd, (long) buf, (uint) size, (long) vio->ssl_arg));
if (vio->async_context && vio->async_context->active)
r= my_ssl_read_async(vio->async_context, (SSL *)vio->ssl_arg, buf, size);
else
r= SSL_read((SSL*) vio->ssl_arg, buf, size);
#ifndef DBUG_OFF
if (r == (size_t) -1)
......@@ -107,10 +113,15 @@ size_t vio_ssl_read(Vio *vio, uchar* buf, size_t size)
size_t vio_ssl_write(Vio *vio, const uchar* buf, size_t size)
{
size_t r;
extern int my_ssl_write_async(struct mysql_async_context *b, SSL *ssl,
const void *buf, int size);
DBUG_ENTER("vio_ssl_write");
DBUG_PRINT("enter", ("sd: %d buf: 0x%lx size: %u", vio->sd,
(long) buf, (uint) size));
if (vio->async_context && vio->async_context->active)
r= my_ssl_write_async(vio->async_context, (SSL *)vio->ssl_arg, buf, size);
else
r= SSL_write((SSL*) vio->ssl_arg, buf, size);
#ifndef DBUG_OFF
if (r == (size_t) -1)
......
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