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more work on mysqlmanager 


tools/mysqlmanager.c:
  more work
parent 7d6644ad
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Showing with 285 additions and 31 deletions
tools/mysqlmanager.c
View file @ a7f577cc
......@@ -40,28 +40,28 @@
#include <violite.h>
#include <my_pthread.h>
#define MNGD_VERSION "1.0"
#define MNGD_GREETING "MySQL Server Management Daemon v.1.0"
#define MANAGER_VERSION "1.0"
#define MANAGER_GREETING "MySQL Server Management Daemon v.1.0"
#define LOG_ERR 1
#define LOG_WARN 2
#define LOG_INFO 3
#define LOG_DEBUG 4
#ifndef MNGD_PORT
#define MNGD_PORT 23546
#ifndef MANAGER_PORT
#define MANAGER_PORT 23546
#endif
#ifndef MNGD_MAX_CMD_LEN
#define MNGD_MAX_CMD_LEN 16384
#ifndef MANAGER_MAX_CMD_LEN
#define MANAGER_MAX_CMD_LEN 16384
#endif
#ifndef MNGD_LOG_FILE
#define MNGD_LOG_FILE "/var/log/mysqlmanager.log"
#ifndef MANAGER_LOG_FILE
#define MANAGER_LOG_FILE "/var/log/mysqlmanager.log"
#endif
#ifndef MNGD_BACK_LOG
#define MNGD_BACK_LOG 50
#ifndef MANAGER_BACK_LOG
#define MANAGER_BACK_LOG 50
#endif
#ifndef MAX_USER_NAME
......@@ -73,17 +73,18 @@
set by the user
*/
uint manager_port = MNGD_PORT;
uint manager_port = MANAGER_PORT;
FILE* errfp;
const char* manager_log_file = MNGD_LOG_FILE;
pthread_mutex_t lock_log, lock_shutdown;
const char* manager_log_file = MANAGER_LOG_FILE;
pthread_mutex_t lock_log,lock_shutdown,lock_exec_hash;
int manager_sock = -1;
struct sockaddr_in manager_addr;
ulong manager_bind_addr = INADDR_ANY;
int manager_back_log = MNGD_BACK_LOG;
int manager_back_log = MANAGER_BACK_LOG;
int in_shutdown = 0, shutdown_requested=0;
const char* manager_greeting = MNGD_GREETING;
uint manager_max_cmd_len = MNGD_MAX_CMD_LEN;
const char* manager_greeting = MANAGER_GREETING;
uint manager_max_cmd_len = MANAGER_MAX_CMD_LEN;
int one_thread = 0; /* for debugging */
/* messages */
......@@ -98,7 +99,6 @@ uint manager_max_cmd_len = MNGD_MAX_CMD_LEN;
#define MSG_CLIENT_ERR 450
#define MSG_INTERNAL_ERR 500
/* access flags */
#define PRIV_SHUTDOWN 1
......@@ -112,9 +112,18 @@ struct manager_thd
int fatal,finished;
};
struct manager_thd* manager_thd_new(Vio* vio);
void manager_thd_free(struct manager_thd* thd);
HASH exec_hash;
static struct manager_thd* manager_thd_new(Vio* vio);
static struct manager_exec* manager_exec_new(char* arg_start,char* arg_end);
static void manager_exec_print(Vio* vio,struct manager_exec* e);
static void manager_thd_free(struct manager_thd* thd);
static void manager_exec_free(void* e);
static char* arg_strmov(char* dest, const char* src, int n);
static byte* get_exec_key(const byte* e, uint* len,
my_bool __attribute__((unused)) t);
static uint tokenize_args(char* arg_start,char** arg_end);
static void init_arg_array(char* arg_str,char** args,uint arg_count);
typedef int (*manager_cmd_handler)(struct manager_thd*,char*,char*);
......@@ -126,6 +135,20 @@ struct manager_cmd
int len;
};
struct manager_exec
{
char* ident;
int ident_len;
const char* error;
char* bin_path;
char** args;
char con_user[16];
char con_pass[16];
int con_port;
char con_sock[FN_REFLEN];
char* data_buf;
};
#define HANDLE_DECL(com) static int handle_ ## com (struct manager_thd* thd,\
char* args_start,char* args_end)
......@@ -138,12 +161,16 @@ HANDLE_NOARG_DECL(ping);
HANDLE_NOARG_DECL(quit);
HANDLE_NOARG_DECL(help);
HANDLE_NOARG_DECL(shutdown);
HANDLE_DECL(def_exec);
HANDLE_NOARG_DECL(show_exec);
struct manager_cmd commands[] =
{
{"ping", "Check if this server is alive", handle_ping,4},
{"quit", "Finish session", handle_quit,4},
{"shutdown", "Shutdown this server", handle_shutdown,8},
{"def_exec", "Define executable entry", handle_def_exec,8},
{"show_exec","Show defined executable entries",handle_show_exec,9},
{"help", "Print this message", handle_help,4},
{0,0,0,0}
};
......@@ -158,6 +185,7 @@ struct option long_options[] =
{"tcp-backlog", required_argument, 0, 'B'},
{"greeting", required_argument, 0, 'g'},
{"max-command-len",required_argument,0,'m'},
{"one-thread",no_argument,0,'d'},
{"version", no_argument, 0, 'V'},
{0, 0, 0, 0}
};
......@@ -190,6 +218,7 @@ static int exec_line(struct manager_thd* thd,char* buf,char* buf_end)
commands");
return 1;
}
for (;p<buf_end && isspace(*p);p++);
return cmd->handler_func(thd,p,buf_end);
}
......@@ -238,6 +267,78 @@ HANDLE_NOARG_DECL(shutdown)
return 0;
}
HANDLE_DECL(def_exec)
{
struct manager_exec* e=0;
const char* error=0;
if (!(e=manager_exec_new(args_start,args_end)))
{
error="Out of memory";
goto err;
}
if (e->error)
{
error=e->error;
goto err;
}
pthread_mutex_lock(&lock_exec_hash);
hash_insert(&exec_hash,(byte*)e);
pthread_mutex_unlock(&lock_exec_hash);
client_msg(thd->vio,MSG_OK,"Exec definition created");
return 0;
err:
client_msg(thd->vio,MSG_CLIENT_ERR,error);
if (e)
manager_exec_free(e);
return 1;
}
HANDLE_NOARG_DECL(show_exec)
{
uint i;
client_msg_pre(thd->vio,MSG_INFO,"Exec_def\tArguments");
pthread_mutex_lock(&lock_exec_hash);
for (i=0;i<exec_hash.records;i++)
{
struct manager_exec* e=(struct manager_exec*)hash_element(&exec_hash,i);
manager_exec_print(thd->vio,e);
}
pthread_mutex_unlock(&lock_exec_hash);
client_msg(thd->vio,MSG_INFO,"End");
return 0;
}
static char* arg_strmov(char* dest, const char* src, int n)
{
char* dest_end = dest+n-1;
char c;
for (;dest<dest_end && (c=*src++);)
{
if (c=='%')
*dest++='%';
*dest++=c;
}
return dest;
}
static void manager_exec_print(Vio* vio,struct manager_exec* e)
{
char buf[MAX_CLIENT_MSG_LEN];
char* p=buf,*buf_end=buf+sizeof(buf);
char** args=e->args;
p=arg_strmov(p,e->ident,(int)(buf_end-p)-2);
*p++='\t';
for(;p<buf_end && *args;args++)
{
p=arg_strmov(p,*args,(int)(buf_end-p)-2);
*p++='\t';
}
*p=0;
client_msg_pre(vio,MSG_INFO,buf);
return;
}
static int authenticate(struct manager_thd* thd)
{
char* buf_end;
......@@ -323,6 +424,8 @@ LOG_MSG_FUNC(info,INFO)
#ifndef DBUG_OFF
LOG_MSG_FUNC(debug,DEBUG)
#else
inline void log_debug(char* __attribute__((unused)) fmt,...) {}
#endif
static pthread_handler_decl(process_connection,arg)
......@@ -439,7 +542,7 @@ struct manager_thd* manager_thd_new(Vio* vio)
return tmp;
}
void manager_thd_free(struct manager_thd* thd)
static void manager_thd_free(struct manager_thd* thd)
{
if (thd->vio)
vio_close(thd->vio);
......@@ -466,11 +569,11 @@ static void clean_up()
static void print_version(void)
{
printf("%s Ver %s Distrib %s, for %s (%s)\n",my_progname,MNGD_VERSION,
printf("%s Ver %s Distrib %s, for %s (%s)\n",my_progname,MANAGER_VERSION,
MYSQL_SERVER_VERSION,SYSTEM_TYPE,MACHINE_TYPE);
}
void usage()
static void usage()
{
print_version();
printf("MySQL AB, by Sasha\n");
......@@ -493,10 +596,10 @@ void usage()
-V, --version Output version information and exit.\n\n");
}
int parse_args(int argc, char **argv)
static int parse_args(int argc, char **argv)
{
int c, option_index = 0;
while ((c=getopt_long(argc,argv,"P:?#:Vl:b:B:g:m:",
while ((c=getopt_long(argc,argv,"P:?#:Vl:b:B:g:m:d",
long_options,&option_index)) != EOF)
{
switch (c)
......@@ -504,6 +607,9 @@ int parse_args(int argc, char **argv)
case '#':
DBUG_PUSH(optarg ? optarg : "d:t:O,/tmp/mysqlmgrd.trace");
break;
case 'd':
one_thread=1;
break;
case 'P':
manager_port=atoi(optarg);
break;
......@@ -535,7 +641,7 @@ int parse_args(int argc, char **argv)
return 0;
}
int init_server()
static int init_server()
{
int arg=1;
log_info("Started");
......@@ -554,7 +660,7 @@ int init_server()
return 0;
}
int run_server_loop()
static int run_server_loop()
{
pthread_t th;
struct manager_thd *thd;
......@@ -598,7 +704,13 @@ int run_server_loop()
}
if (shutdown_requested)
break;
if (pthread_create(&th,0,process_connection,(void*)thd))
if (one_thread)
{
process_connection((void*)thd);
manager_thd_free(thd);
continue;
}
else if (pthread_create(&th,0,process_connection,(void*)thd))
{
client_msg(vio,MSG_INTERNAL_ERR,"Could not create thread, errno=%d",
errno);
......@@ -609,7 +721,7 @@ int run_server_loop()
return 0;
}
FILE* open_log_stream()
static FILE* open_log_stream()
{
FILE* fp;
if (!(fp=fopen(manager_log_file,"a")))
......@@ -617,7 +729,131 @@ FILE* open_log_stream()
return fp;
}
int daemonize()
static byte* get_exec_key(const byte* e, uint* len,
my_bool __attribute__((unused)) t)
{
register const char* key;
key = ((struct manager_exec*)e)->ident;
*len = ((struct manager_exec*)e)->ident_len;
return (byte*)key;
}
static void init_arg_array(char* arg_str,char** args,uint arg_count)
{
char* p = arg_str;
for (;arg_count>0;arg_count--)
{
*args++=p;
p += strlen(p)+1;
}
*args=0;
}
static uint tokenize_args(char* arg_start,char** arg_end)
{
char* p, *p_write,*p_end;
uint arg_count=0;
int quoted=0,escaped=0,last_space=0;
p_end=*arg_end;
p_write=p=arg_start;
for(;p<p_end;p++)
{
char c = *p;
switch (c)
{
case ' ':
case '\r':
case '\n':
if (!quoted)
{
if (!last_space)
{
*p_write++=0;
arg_count++;
last_space=1;
}
}
else
*p_write++=c;
escaped=0;
break;
case '"':
if (!escaped)
quoted=!quoted;
else
*p_write++=c;
last_space=0;
escaped=0;
break;
case '\\':
if (!escaped)
escaped=1;
else
{
*p_write++=c;
escaped=0;
}
last_space=0;
break;
default:
escaped=last_space=0;
*p_write++=c;
break;
}
}
if (!last_space && p_write>arg_start)
arg_count++;
*p_write=0;
*arg_end=p_write;
log_debug("arg_count=%d,arg_start='%s'",arg_count,arg_start);
return arg_count;
}
static struct manager_exec* manager_exec_new(char* arg_start,char* arg_end)
{
struct manager_exec* tmp;
char* first_arg;
uint arg_len,num_args;
num_args=tokenize_args(arg_start,&arg_end);
arg_len=(uint)(arg_end-arg_start)+1; /* include \0 terminator*/
if (!(tmp=(struct manager_exec*)my_malloc(sizeof(*tmp)+arg_len+
sizeof(char*)*num_args,MYF(0))))
return 0;
if (num_args<2)
{
tmp->error="Too few arguments";
return tmp;
}
tmp->data_buf=(char*)tmp+sizeof(*tmp);
memcpy(tmp->data_buf,arg_start,arg_len);
tmp->args=(char**)(tmp->data_buf+arg_len);
tmp->ident=tmp->data_buf;
tmp->ident_len=strlen(tmp->ident);
first_arg=tmp->ident+tmp->ident_len+1;
init_arg_array(first_arg,tmp->args,num_args-1);
strmov(tmp->con_user,"root");
tmp->con_pass[0]=0;
tmp->con_sock[0]=0;
tmp->con_port=MYSQL_PORT;
tmp->bin_path=tmp->args[0];
tmp->error=0;
return tmp;
}
static void manager_exec_free(void* e)
{
my_free(e,MYF(0));
}
static void init_globals()
{
if (hash_init(&exec_hash,1024,0,0,get_exec_key,manager_exec_free,MYF(0)))
die("Exec hash initialization failed");
}
static int daemonize()
{
switch (fork())
{
......@@ -625,8 +861,10 @@ int daemonize()
die("Cannot fork");
case 0:
errfp = open_log_stream();
init_globals();
close(0);
close(1);
close(2);
init_server();
run_server_loop();
clean_up();
......@@ -644,8 +882,24 @@ int main(int argc, char** argv)
parse_args(argc,argv);
pthread_mutex_init(&lock_log,0);
pthread_mutex_init(&lock_shutdown,0);
return daemonize();
pthread_mutex_init(&lock_exec_hash,0);
if (one_thread)
{
init_globals();
init_server();
run_server_loop();
clean_up();
return 0;
}
else
return daemonize();
}
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