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Fixed lp:814238 "safe_mutex issues must be assertions in debug binary"

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Added --debug-assert-on-error variable which, if set, will cause safe_mutex to assert if it founds an error.

include/my_sys.h:
  Added my_assert_on_error
mysys/my_static.c:
  Added my_assert_on_error
mysys/thr_mutex.c:
  Assert when found wrong mutex usage if my_assert_on_error is set
sql/mysqld.cc:
  Added setting of my_assert_on_error
This commit is contained in:
Michael Widenius 2011-09-02 12:41:20 +03:00
parent 37a8497d49
commit 13e4d54795
4 changed files with 16 additions and 4 deletions
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1
include/my_sys.h
View File

@ -255,6 +255,7 @@ extern ulong my_file_total_opened;
extern ulong my_sync_count;
extern uint mysys_usage_id;
extern my_bool my_init_done;
extern my_bool my_assert_on_error;
extern myf my_global_flags; /* Set to MY_WME for more error messages */
/* Point to current my_message() */
extern void (*my_sigtstp_cleanup)(void),

3
mysys/my_static.c
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@ -32,7 +32,8 @@ char NEAR curr_dir[FN_REFLEN]= {0},
ulong my_stream_opened=0,my_file_opened=0, my_tmp_file_created=0;
ulong my_file_total_opened= 0;
int NEAR my_umask=0664, NEAR my_umask_dir=0777;
myf my_global_flags;
myf my_global_flags= 0;
my_bool my_assert_on_error= 0;
#ifndef THREAD
int NEAR my_errno=0;
#endif

1
mysys/thr_mutex.c
View File

@ -836,6 +836,7 @@ static void print_deadlock_warning(safe_mutex_t *new_mutex,
mutex_root->file, mutex_root->line));
}
fflush(stderr);
DBUG_ASSERT(my_assert_on_error == 0);
DBUG_VOID_RETURN;
}

15
sql/mysqld.cc
View File

@ -6068,7 +6068,9 @@ enum options_mysqld
OPT_SECURE_FILE_PRIV,
OPT_MIN_EXAMINED_ROW_LIMIT,
OPT_LOG_SLOW_SLAVE_STATEMENTS,
OPT_DEBUG_CRC, OPT_DEBUG_ON, OPT_DEBUG_ASSERT_IF_CRASHED_TABLE, OPT_OLD_MODE,
OPT_DEBUG_CRC, OPT_DEBUG_ON, OPT_DEBUG_ASSERT_IF_CRASHED_TABLE,
OPT_DEBUG_ASSERT_ON_ERROR,
OPT_OLD_MODE,
OPT_TEST_IGNORE_WRONG_OPTIONS, OPT_TEST_RESTART,
#if defined(ENABLED_DEBUG_SYNC)
OPT_DEBUG_SYNC_TIMEOUT,
@ -6243,6 +6245,10 @@ struct my_option my_long_options[] =
"Do an assert in handler::print_error() if we get a crashed table",
&debug_assert_if_crashed_table, &debug_assert_if_crashed_table,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"debug-assert-on-error", OPT_DEBUG_ASSERT_ON_ERROR,
"Do an assert in various functions if we get a fatal error",
&my_assert_on_error, &my_assert_on_error,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
{"default-character-set", OPT_DEFAULT_CHARACTER_SET_OLD,
"Set the default character set (deprecated option, use --character-set-server instead).",
@ -9422,14 +9428,17 @@ static int get_options(int *argc,char **argv)
my_crc_dbug_check= opt_my_crc_dbug_check;
/*
Log mysys errors when we don't have a thd or thd->log_all_errors is set (recovery) to
the log. This is mainly useful for debugging strange system errors.
Log mysys errors when we don't have a thd or thd->log_all_errors is set
(recovery) to the log. This is mainly useful for debugging strange system
errors.
*/
if (global_system_variables.log_warnings >= 10)
my_global_flags= MY_WME | ME_JUST_INFO;
/* Log all errors not handled by thd->handle_error() to my_message_sql() */
if (global_system_variables.log_warnings >= 11)
my_global_flags|= ME_NOREFRESH;
if (my_assert_on_error)
debug_assert_if_crashed_table= 1;
/* long_query_time is in microseconds */
global_system_variables.long_query_time= max_system_variables.long_query_time=