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Commit 700ff439 authored by unknown's avatar unknown
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Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.1-new 

into lmy004.:/work/mysql-5.1-bug16410
parents 03a0eb63 9d5bf35d
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Showing with 264 additions and 260 deletions
dbug/Makefile.am
View file @ 700ff439
......@@ -21,7 +21,7 @@ pkglib_LIBRARIES = libdbug.a
noinst_HEADERS = dbug_long.h
libdbug_a_SOURCES = dbug.c sanity.c
EXTRA_DIST = example1.c example2.c example3.c \
user.r monty.doc readme.prof dbug_add_tags.pl \
user.r monty.doc dbug_add_tags.pl \
my_main.c main.c factorial.c dbug_analyze.c
NROFF_INC = example1.r example2.r example3.r main.r \
factorial.r output1.r output2.r output3.r \
......
sql/event.h
View file @ 700ff439
......@@ -43,13 +43,13 @@
extern ulong opt_event_executor;
enum enum_event_on_completion
{
{
MYSQL_EVENT_ON_COMPLETION_DROP = 1,
MYSQL_EVENT_ON_COMPLETION_PRESERVE
};
enum enum_event_status
{
{
MYSQL_EVENT_ENABLED = 1,
MYSQL_EVENT_DISABLED
};
......@@ -60,9 +60,9 @@ enum evex_table_field
EVEX_FIELD_NAME,
EVEX_FIELD_BODY,
EVEX_FIELD_DEFINER,
EVEX_FIELD_EXECUTE_AT,
EVEX_FIELD_INTERVAL_EXPR,
EVEX_FIELD_TRANSIENT_INTERVAL,
EVEX_FIELD_EXECUTE_AT,
EVEX_FIELD_INTERVAL_EXPR,
EVEX_FIELD_TRANSIENT_INTERVAL,
EVEX_FIELD_CREATED,
EVEX_FIELD_MODIFIED,
EVEX_FIELD_LAST_EXECUTED,
......@@ -112,7 +112,7 @@ public:
ulong sql_mode;
const uchar *body_begin;
bool dropped;
bool free_sphead_on_delete;
uint flags;//all kind of purposes
......@@ -123,26 +123,26 @@ public:
status(MYSQL_EVENT_ENABLED), sphead(0), sql_mode(0),
body_begin(0), dropped(false), free_sphead_on_delete(true),
flags(0)
{
pthread_mutex_init(&this->LOCK_running, MY_MUTEX_INIT_FAST);
init();
}
~event_timed()
{
pthread_mutex_destroy(&this->LOCK_running);
if (free_sphead_on_delete)
free_sp();
}
void
init();
int
int
init_definer(THD *thd);
int
init_execute_at(THD *thd, Item *expr);
......@@ -157,7 +157,7 @@ public:
int
init_ends(THD *thd, Item *ends);
void
init_body(THD *thd);
......@@ -168,38 +168,38 @@ public:
load_from_row(MEM_ROOT *mem_root, TABLE *table);
bool
compute_next_execution_time();
compute_next_execution_time();
void
mark_last_executed(THD *thd);
int
drop(THD *thd);
bool
update_fields(THD *thd);
int
get_create_event(THD *thd, String *buf);
int
execute(THD *thd, MEM_ROOT *mem_root= NULL);
int
compile(THD *thd, MEM_ROOT *mem_root= NULL);
my_bool
is_running()
{
my_bool ret;
VOID(pthread_mutex_lock(&this->LOCK_running));
ret= running;
VOID(pthread_mutex_unlock(&this->LOCK_running));
return ret;
return ret;
}
void free_sp()
{
delete sphead;
......@@ -241,7 +241,7 @@ shutdown_events();
// auxiliary
int
int
event_timed_compare(event_timed **a, event_timed **b);
......
sql/event_priv.h
View file @ 700ff439
......@@ -36,8 +36,8 @@ evex_db_find_event_aux(THD *thd, const LEX_STRING dbname,
const LEX_STRING rname,
const LEX_STRING definer,
TABLE *table);
int
int
event_timed_compare_q(void *vptr, byte* a, byte *b);
int db_drop_event(THD *thd, event_timed *et, bool drop_if_exists,
......
sql/event_timed.cc
View file @ 700ff439
......@@ -23,10 +23,10 @@
extern int yyparse(void *thd);
/*
Init all member variables
Init all member variables
SYNOPSIS
event_timed::init()
SYNOPSIS
event_timed::init()
*/
void
......@@ -36,7 +36,7 @@ event_timed::init()
dbname.str= name.str= body.str= comment.str= 0;
dbname.length= name.length= body.length= comment.length= 0;
set_zero_time(&starts, MYSQL_TIMESTAMP_DATETIME);
set_zero_time(&ends, MYSQL_TIMESTAMP_DATETIME);
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
......@@ -44,25 +44,25 @@ event_timed::init()
definer_user.str= definer_host.str= 0;
definer_user.length= definer_host.length= 0;
DBUG_VOID_RETURN;
}
/*
Set a name of the event
Set a name of the event
SYNOPSIS
event_timed::init_name()
thd THD
spn the name extracted in the parser
SYNOPSIS
event_timed::init_name()
thd THD
spn the name extracted in the parser
*/
void
event_timed::init_name(THD *thd, sp_name *spn)
{
DBUG_ENTER("event_timed::init_name");
uint n; /* Counter for nul trimming */
uint n; /* Counter for nul trimming */
/* During parsing, we must use thd->mem_root */
MEM_ROOT *root= thd->mem_root;
......@@ -85,20 +85,20 @@ event_timed::init_name(THD *thd, sp_name *spn)
dbname.length= thd->db_length;
dbname.str= strmake_root(root, thd->db, dbname.length);
}
DBUG_PRINT("dbname", ("len=%d db=%s",dbname.length, dbname.str));
DBUG_PRINT("name", ("len=%d name=%s",name.length, name.str));
DBUG_PRINT("dbname", ("len=%d db=%s",dbname.length, dbname.str));
DBUG_PRINT("name", ("len=%d name=%s",name.length, name.str));
DBUG_VOID_RETURN;
}
/*
Set body of the event - what should be executed.
Set body of the event - what should be executed.
SYNOPSIS
event_timed::init_body()
thd THD
SYNOPSIS
event_timed::init_body()
thd THD
NOTE
The body is extracted by copying all data between the
......@@ -112,7 +112,7 @@ event_timed::init_body(THD *thd)
MEM_ROOT *root= thd->mem_root;
body.length= thd->lex->ptr - body_begin;
// Trim nuls at the end
// Trim nuls at the end
while (body.length && body_begin[body.length-1] == '\0')
body.length--;
......@@ -126,17 +126,17 @@ event_timed::init_body(THD *thd)
/*
Set time for execution for one time events.
Set time for execution for one time events.
SYNOPSIS
event_timed::init_execute_at()
expr when (datetime)
SYNOPSIS
event_timed::init_execute_at()
expr when (datetime)
RETURNS
0 - OK
EVEX_PARSE_ERROR - fix_fields failed
EVEX_BAD_PARAMS - datetime is in the past
ER_WRONG_VALUE - wrong value for execute at
RETURN VALUE
0 OK
EVEX_PARSE_ERROR fix_fields failed
EVEX_BAD_PARAMS datetime is in the past
ER_WRONG_VALUE wrong value for execute at
*/
int
......@@ -152,9 +152,9 @@ event_timed::init_execute_at(THD *thd, Item *expr)
if (expr->fix_fields(thd, &expr))
DBUG_RETURN(EVEX_PARSE_ERROR);
// let's check whether time is in the past
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
/* Let's check whether time is in the past */
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
if ((not_used= expr->get_date(&ltime, TIME_NO_ZERO_DATE)))
......@@ -166,8 +166,8 @@ event_timed::init_execute_at(THD *thd, Item *expr)
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
CONVERT_TZ has similar problem
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
CONVERT_TZ has similar problem.
*/
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd,&ltime, &not_used));
......@@ -178,17 +178,17 @@ event_timed::init_execute_at(THD *thd, Item *expr)
/*
Set time for execution for transient events.
Set time for execution for transient events.
SYNOPSIS
event_timed::init_interval()
expr how much?
new_interval what is the interval
SYNOPSIS
event_timed::init_interval()
expr how much?
new_interval what is the interval
RETURNS
0 - OK
EVEX_PARSE_ERROR - fix_fields failed
EVEX_BAD_PARAMS - Interval is not positive
RETURNS
0 OK
EVEX_PARSE_ERROR fix_fields failed
EVEX_BAD_PARAMS Interval is not positive
*/
int
......@@ -197,7 +197,7 @@ event_timed::init_interval(THD *thd, Item *expr, interval_type new_interval)
longlong tmp;
String value;
INTERVAL interval;
DBUG_ENTER("event_timed::init_interval");
if (expr->fix_fields(thd, &expr))
......@@ -230,7 +230,7 @@ event_timed::init_interval(THD *thd, Item *expr, interval_type new_interval)
case INTERVAL_SECOND:
expression= interval.second;
break;
case INTERVAL_YEAR_MONTH: // Allow YEAR-MONTH YYYYYMM
case INTERVAL_YEAR_MONTH: // Allow YEAR-MONTH YYYYYMM
expression= interval.year* 12 + interval.month;
break;
case INTERVAL_DAY_HOUR:
......@@ -265,31 +265,31 @@ event_timed::init_interval(THD *thd, Item *expr, interval_type new_interval)
}
if (interval.neg || expression > EVEX_MAX_INTERVAL_VALUE)
DBUG_RETURN(EVEX_BAD_PARAMS);
this->interval= new_interval;
DBUG_RETURN(0);
}
/*
Set activation time.
SYNOPSIS
event_timed::init_starts()
expr how much?
interval what is the interval
NOTES
Note that activation time is not execution time.
EVERY 5 MINUTE STARTS "2004-12-12 10:00:00" means that
the event will be executed every 5 minutes but this will
start at the date shown above. Expressions are possible :
DATE_ADD(NOW(), INTERVAL 1 DAY) -- start tommorow at
same time.
RETURNS
0 - OK
EVEX_PARSE_ERROR - fix_fields failed
Set activation time.
SYNOPSIS
event_timed::init_starts()
expr how much?
interval what is the interval
NOTES
Note that activation time is not execution time.
EVERY 5 MINUTE STARTS "2004-12-12 10:00:00" means that
the event will be executed every 5 minutes but this will
start at the date shown above. Expressions are possible :
DATE_ADD(NOW(), INTERVAL 1 DAY) -- start tommorow at
same time.
RETURNS
0 OK
EVEX_PARSE_ERROR fix_fields failed
*/
int
......@@ -306,9 +306,9 @@ event_timed::init_starts(THD *thd, Item *new_starts)
if ((not_used= new_starts->get_date(&ltime, TIME_NO_ZERO_DATE)))
DBUG_RETURN(EVEX_BAD_PARAMS);
// let's check whether time is in the past
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
/* Let's check whether time is in the past */
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
(my_time_t) thd->query_start());
DBUG_PRINT("info",("now =%lld", TIME_to_ulonglong_datetime(&time_tmp)));
DBUG_PRINT("info",("starts=%lld", TIME_to_ulonglong_datetime(&ltime)));
......@@ -317,8 +317,8 @@ event_timed::init_starts(THD *thd, Item *new_starts)
DBUG_RETURN(EVEX_BAD_PARAMS);
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
CONVERT_TZ has similar problem
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
CONVERT_TZ has similar problem
*/
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd, &ltime, &not_used));
......@@ -328,28 +328,28 @@ event_timed::init_starts(THD *thd, Item *new_starts)
/*
Set deactivation time.
SYNOPSIS
event_timed::init_ends()
thd THD
new_ends when?
NOTES
Note that activation time is not execution time.
EVERY 5 MINUTE ENDS "2004-12-12 10:00:00" means that
the event will be executed every 5 minutes but this will
end at the date shown above. Expressions are possible :
DATE_ADD(NOW(), INTERVAL 1 DAY) -- end tommorow at
same time.
RETURNS
0 - OK
EVEX_PARSE_ERROR - fix_fields failed
EVEX_BAD_PARAMS - ENDS before STARTS
Set deactivation time.
SYNOPSIS
event_timed::init_ends()
thd THD
new_ends when?
NOTES
Note that activation time is not execution time.
EVERY 5 MINUTE ENDS "2004-12-12 10:00:00" means that
the event will be executed every 5 minutes but this will
end at the date shown above. Expressions are possible :
DATE_ADD(NOW(), INTERVAL 1 DAY) -- end tommorow at
same time.
RETURNS
0 OK
EVEX_PARSE_ERROR fix_fields failed
EVEX_BAD_PARAMS ENDS before STARTS
*/
int
int
event_timed::init_ends(THD *thd, Item *new_ends)
{
TIME ltime;
......@@ -361,16 +361,16 @@ event_timed::init_ends(THD *thd, Item *new_ends)
if (new_ends->fix_fields(thd, &new_ends))
DBUG_RETURN(EVEX_PARSE_ERROR);
// the field was already fixed in init_ends
/* The field was already fixed in init_ends */
if ((not_used= new_ends->get_date(&ltime, TIME_NO_ZERO_DATE)))
DBUG_RETURN(EVEX_BAD_PARAMS);
/*
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
CONVERT_TZ has similar problem
This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
CONVERT_TZ has similar problem.
*/
my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd, &ltime, &not_used));
if (starts.year && my_time_compare(&starts, &ltime) != -1)
DBUG_RETURN(EVEX_BAD_PARAMS);
......@@ -380,12 +380,12 @@ event_timed::init_ends(THD *thd, Item *new_ends)
/*
Sets comment.
Sets comment.
SYNOPSIS
event_timed::init_comment()
thd THD - used for memory allocation
comment the string.
SYNOPSIS
event_timed::init_comment()
thd THD - used for memory allocation
comment the string.
*/
void
......@@ -401,11 +401,10 @@ event_timed::init_comment(THD *thd, LEX_STRING *set_comment)
/*
Inits definer (definer_user and definer_host) during
parsing.
Inits definer (definer_user and definer_host) during parsing.
SYNOPSIS
event_timed::init_definer()
SYNOPSIS
event_timed::init_definer()
*/
int
......@@ -418,31 +417,31 @@ event_timed::init_definer(THD *thd)
definer_host.str= strdup_root(thd->mem_root, thd->security_ctx->priv_host);
definer_host.length= strlen(thd->security_ctx->priv_host);
definer.length= definer_user.length + definer_host.length + 1;
definer.str= alloc_root(thd->mem_root, definer.length + 1);
memcpy(definer.str, definer_user.str, definer_user.length);
definer.str[definer_user.length]= '@';
memcpy(definer.str + definer_user.length + 1, definer_host.str,
definer_host.length);
definer.str[definer.length]= '\0';
definer.str[definer.length]= '\0';
DBUG_RETURN(0);
}
/*
Loads an event from a row from mysql.event
SYNOPSIS
event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
REMARKS
This method is silent on errors and should behave like that. Callers
should handle throwing of error messages. The reason is that the class
should not know about how to deal with communication.
Loads an event from a row from mysql.event
SYNOPSIS
event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
NOTES
This method is silent on errors and should behave like that. Callers
should handle throwing of error messages. The reason is that the class
should not know about how to deal with communication.
*/
int
......@@ -461,7 +460,7 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
goto error;
et= this;
if (table->s->fields != EVEX_FIELD_COUNT)
goto error;
......@@ -500,18 +499,18 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
len= et->definer.length - len - 1; //1 is because of @
et->definer_host.str= strmake_root(mem_root, ptr + 1, len);//1: because of @
et->definer_host.length= len;
res1= table->field[EVEX_FIELD_STARTS]->
get_date(&et->starts, TIME_NO_ZERO_DATE);
res2= table->field[EVEX_FIELD_ENDS]->
get_date(&et->ends, TIME_NO_ZERO_DATE);
et->expression= table->field[EVEX_FIELD_INTERVAL_EXPR]->val_int();
/*
If res1 and res2 are true then both fields are empty.
Hence if EVEX_FIELD_EXECUTE_AT is empty there is an error.
Hence if EVEX_FIELD_EXECUTE_AT is empty there is an error.
*/
if (res1 && res2 && !et->expression && table->field[EVEX_FIELD_EXECUTE_AT]->
get_date(&et->execute_at, TIME_NO_ZERO_DATE))
......@@ -554,7 +553,7 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
// ToDo : Andrey . Find a way not to allocate ptr on event_mem_root
if ((ptr= get_field(mem_root, table->field[EVEX_FIELD_STATUS])) == NullS)
goto error;
DBUG_PRINT("load_from_row", ("Event [%s] is [%s]", et->name.str, ptr));
et->status= (ptr[0]=='E'? MYSQL_EVENT_ENABLED:MYSQL_EVENT_DISABLED);
......@@ -571,7 +570,7 @@ event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
et->comment.length= strlen(et->comment.str);
else
et->comment.length= 0;
DBUG_RETURN(0);
error:
DBUG_RETURN(EVEX_GET_FIELD_FAILED);
......@@ -579,15 +578,14 @@ error:
/*
Computes the sum of a timestamp plus interval
SYNOPSIS
get_next_time(TIME *start, int interval_value, interval_type interval)
next - the sum
start - add interval_value to this time
i_value - quantity of time type interval to add
i_type - type of interval to add (SECOND, MINUTE, HOUR, WEEK ...)
Computes the sum of a timestamp plus interval
SYNOPSIS
get_next_time(TIME *start, int interval_value, interval_type interval)
next the sum
start add interval_value to this time
i_value quantity of time type interval to add
i_type type of interval to add (SECOND, MINUTE, HOUR, WEEK ...)
*/
static
......@@ -596,7 +594,7 @@ bool get_next_time(TIME *next, TIME *start, int i_value, interval_type i_type)
bool ret;
INTERVAL interval;
TIME tmp;
bzero(&interval, sizeof(interval));
switch (i_type) {
......@@ -648,14 +646,14 @@ bool get_next_time(TIME *next, TIME *start, int i_value, interval_type i_type)
/*
Computes next execution time.
SYNOPSIS
event_timed::compute_next_execution_time()
REMARKS:
The time is set in execute_at, if no more executions the latter is set to
0000-00-00.
Computes next execution time.
SYNOPSIS
event_timed::compute_next_execution_time()
NOTES
The time is set in execute_at, if no more executions the latter is set to
0000-00-00.
*/
bool
......@@ -673,10 +671,10 @@ event_timed::compute_next_execution_time()
("Event %s is DISABLED", name.str));
goto ret;
}
//if one-time no need to do computation
/* If one-time, no need to do computation */
if (!expression)
{
//let's check whether it was executed
/* Let's check whether it was executed */
if (last_executed.year)
{
DBUG_PRINT("compute_next_execution_time",
......@@ -697,7 +695,7 @@ event_timed::compute_next_execution_time()
#ifdef ANDREY_0
sql_print_information("[%s.%s]", dbname.str, name.str);
sql_print_information("time_now : [%d-%d-%d %d:%d:%d ]",
sql_print_information("time_now : [%d-%d-%d %d:%d:%d ]",
time_now.year, time_now.month, time_now.day,
time_now.hour, time_now.minute, time_now.second);
sql_print_information("starts : [%d-%d-%d %d:%d:%d ]", starts.year,
......@@ -712,10 +710,10 @@ event_timed::compute_next_execution_time()
last_executed.second);
#endif
//if time_now is after ends don't execute anymore
/* If time_now is after ends don't execute anymore */
if (ends.year && (tmp= my_time_compare(&ends, &time_now)) == -1)
{
// time_now is after ends. don't execute anymore
/* time_now is after ends. don't execute anymore */
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
dropped= true;
......@@ -724,17 +722,17 @@ event_timed::compute_next_execution_time()
goto ret;
}
/*
Here time_now is before or equals ends if the latter is set.
Let's check whether time_now is before starts.
If so schedule for starts
/*
Here time_now is before or equals ends if the latter is set.
Let's check whether time_now is before starts.
If so schedule for starts.
*/
if (starts.year && (tmp= my_time_compare(&time_now, &starts)) < 1)
{
if (tmp == 0 && my_time_compare(&starts, &last_executed) == 0)
{
/*
/*
time_now = starts = last_executed
do nothing or we will schedule for second time execution at starts.
*/
......@@ -749,10 +747,10 @@ event_timed::compute_next_execution_time()
goto ret;
}
}
if (starts.year && ends.year)
{
/*
/*
Both starts and m_ends are set and time_now is between them (incl.)
If last_executed is set then increase with m_expression. The new TIME is
after m_ends set execute_at to 0. And check for on_completion
......@@ -763,14 +761,14 @@ event_timed::compute_next_execution_time()
else
{
TIME next_exec;
if (get_next_time(&next_exec, &last_executed, expression, interval))
goto err;
// There was previous execution
/* There was previous execution */
if (my_time_compare(&ends, &next_exec) == -1)
{
// Next execution after ends. No more executions
/* Next execution after ends. No more executions */
set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
dropped= true;
......@@ -782,20 +780,24 @@ event_timed::compute_next_execution_time()
}
else if (!starts.year && !ends.year)
{
// both starts and m_ends are not set, se we schedule for the next
// based on last_executed
/*
Both starts and m_ends are not set, so we schedule for the next
based on last_executed.
*/
if (last_executed.year)
{
if (get_next_time(&execute_at, &last_executed, expression, interval))
goto err;
}
else
//last_executed not set. Schedule the event for now
{
/* last_executed not set. Schedule the event for now */
execute_at= time_now;
}
}
else
{
//either starts or m_ends is set
/* Either starts or m_ends is set */
if (starts.year)
{
/*
......@@ -853,10 +855,10 @@ err:
/*
Set the internal last_executed TIME struct to now. NOW is the
time according to thd->query_start(), so the THD's clock.
Synopsis
SYNOPSIS
event_timed::drop()
thd - thread context
thd thread context
*/
void
......@@ -877,17 +879,17 @@ event_timed::mark_last_executed(THD *thd)
/*
Drops the event
Synopsis
SYNOPSIS
event_timed::drop()
thd - thread context
thd thread context
RETURNS :
0 - OK
-1 - Cannot open mysql.event
-2 - Cannot find the event in mysql.event (already deleted?)
others - return code from SE in case deletion of the event row
RETURN VALUE
0 OK
-1 Cannot open mysql.event
-2 Cannot find the event in mysql.event (already deleted?)
others return code from SE in case deletion of the event row
failed.
*/
......@@ -904,18 +906,18 @@ event_timed::drop(THD *thd)
/*
Saves status and last_executed_at to the disk if changed.
Synopsis
SYNOPSIS
event_timed::drop()
thd - thread context
Returns :
0 - OK
SP_OPEN_TABLE_FAILED - Error while opening mysql.event for writing
EVEX_WRITE_ROW_FAILED - On error to write to disk
others - return code from SE in case deletion of the event row
failed.
RETURN VALUE
0 OK
SP_OPEN_TABLE_FAILED Error while opening mysql.event for writing
EVEX_WRITE_ROW_FAILED On error to write to disk
others return code from SE in case deletion of the event
row failed.
*/
bool
......@@ -929,11 +931,11 @@ event_timed::update_fields(THD *thd)
DBUG_ENTER("event_timed::update_time_fields");
DBUG_PRINT("enter", ("name: %*s", name.length, name.str));
//no need to update if nothing has changed
/* No need to update if nothing has changed */
if (!(status_changed || last_executed_changed))
goto done;
thd->reset_n_backup_open_tables_state(&backup);
if (evex_open_event_table(thd, TL_WRITE, &table))
......@@ -947,8 +949,8 @@ event_timed::update_fields(THD *thd)
goto done;
store_record(table,record[1]);
// Don't update create on row update.
table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
/* Don't update create on row update. */
table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
if (last_executed_changed)
{
......@@ -963,7 +965,7 @@ event_timed::update_fields(THD *thd)
table->field[EVEX_FIELD_STATUS]->store((longlong)status);
status_changed= false;
}
if ((table->file->ha_update_row(table->record[1],table->record[0])))
ret= EVEX_WRITE_ROW_FAILED;
......@@ -977,14 +979,16 @@ done:
/*
Get SHOW CREATE EVENT as string
thd - Thread
buf - String*, should be already allocated. CREATE EVENT goes inside.
Returns:
0 - OK
1 - Error (for now if mysql.event has been tampered and MICROSECONDS
interval or derivative has been put there.
SYNOPSIS
event_timed::get_create_event(THD *thd, String *buf)
thd Thread
buf String*, should be already allocated. CREATE EVENT goes inside.
RETURN VALUE
0 OK
1 Error (for now if mysql.event has been tampered and MICROSECONDS
interval or derivative has been put there.
*/
int
......@@ -1017,9 +1021,9 @@ event_timed::get_create_event(THD *thd, String *buf)
{
char dtime_buff[20*2+32];// +32 to make my_snprintf_{8bit|ucs2} happy
buf->append(STRING_WITH_LEN("AT '"));
/*
pass the buffer and the second param tells fills the buffer and returns
the number of chars to copy
/*
Pass the buffer and the second param tells fills the buffer and
returns the number of chars to copy.
*/
buf->append(dtime_buff, my_datetime_to_str(&execute_at, dtime_buff));
buf->append(STRING_WITH_LEN("'"));
......@@ -1041,25 +1045,24 @@ event_timed::get_create_event(THD *thd, String *buf)
append_unescaped(buf, comment.str, comment.length);
}
buf->append(STRING_WITH_LEN(" DO "));
buf->append(body.str, body.length);
buf->append(body.str, body.length);
DBUG_RETURN(0);
}
/*
Executes the event (the underlying sp_head object);
SYNOPSIS
evex_fill_row()
thd THD
mem_root If != NULL use it to compile the event on it
Returns
0 - success
-100 - event in execution (parallel execution is impossible)
others - retcodes of sp_head::execute_procedure()
Executes the event (the underlying sp_head object);
SYNOPSIS
evex_fill_row()
thd THD
mem_root If != NULL use it to compile the event on it
RETURNS
0 success
-100 event in execution (parallel execution is impossible)
others retcodes of sp_head::execute_procedure()
*/
int
......@@ -1067,11 +1070,11 @@ event_timed::execute(THD *thd, MEM_ROOT *mem_root)
{
List<Item> empty_item_list;
int ret= 0;
DBUG_ENTER("event_timed::execute");
VOID(pthread_mutex_lock(&this->LOCK_running));
if (running)
if (running)
{
VOID(pthread_mutex_unlock(&this->LOCK_running));
DBUG_RETURN(-100);
......@@ -1081,10 +1084,10 @@ event_timed::execute(THD *thd, MEM_ROOT *mem_root)
// TODO Andrey : make this as member variable and delete in destructor
empty_item_list.empty();
if (!sphead && (ret= compile(thd, mem_root)))
goto done;
ret= sphead->execute_procedure(thd, &empty_item_list);
VOID(pthread_mutex_lock(&this->LOCK_running));
......@@ -1106,17 +1109,16 @@ done:
/*
Compiles an event before it's execution. Compiles the anonymous
sp_head object held by the event
Synopsis
SYNOPSIS
event_timed::compile()
thd - thread context, used for memory allocation mostly
mem_root - if != NULL then this memory root is used for allocs
instead of thd->mem_root
Returns
0 - Success
EVEX_COMPILE_ERROR - Error during compilation
thd thread context, used for memory allocation mostly
mem_root if != NULL then this memory root is used for allocs
instead of thd->mem_root
RETURN VALUE
0 success
EVEX_COMPILE_ERROR error during compilation
*/
int
......@@ -1136,21 +1138,21 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
CHARSET_INFO *old_character_set_client,
*old_collation_connection,
*old_character_set_results;
show_create.length(0);
old_character_set_client= thd->variables.character_set_client;
old_character_set_results= thd->variables.character_set_results;
old_collation_connection= thd->variables.collation_connection;
thd->variables.character_set_client=
thd->variables.character_set_client=
thd->variables.character_set_results=
thd->variables.collation_connection=
get_charset_by_csname("utf8", MY_CS_PRIMARY, MYF(MY_WME));
thd->update_charset();
DBUG_ENTER("event_timed::compile");
// change the memory root for the execution time
/* Change the memory root for the execution time */
if (mem_root)
{
tmp_mem_root= thd->mem_root;
......@@ -1174,8 +1176,10 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
{
DBUG_PRINT("error", ("error during compile or thd->is_fatal_error=%d",
thd->is_fatal_error));
// Free lex associated resources
// QQ: Do we really need all this stuff here ?
/*
Free lex associated resources
QQ: Do we really need all this stuff here?
*/
sql_print_error("error during compile of %s.%s or thd->is_fatal_error=%d",
dbname.str, name.str, thd->is_fatal_error);
if (lex.sphead)
......@@ -1189,11 +1193,13 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
goto done;
}
DBUG_PRINT("note", ("success compiling %s.%s", dbname.str, name.str));
sphead= lex.et->sphead;
sphead->m_db= dbname;
//copy also chistics since they will vanish otherwise we get 0x0 pointer
// Todo : Handle sql_mode !!
/*
Ccopy also chistics since they will vanish otherwise we get 0x0 pointer
TODO: Handle sql_mode!!
*/
sphead->set_definer(definer.str, definer.length);
sphead->set_info(0, 0, &lex.sp_chistics, 0/*sql_mode*/);
sphead->optimize();
......@@ -1214,9 +1220,7 @@ done:
thd->variables.collation_connection= old_collation_connection;
thd->update_charset();
/*
Change the memory root for the execution time.
*/
/* Change the memory root for the execution time. */
if (mem_root)
thd->mem_root= tmp_mem_root;
......
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