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WL#2360 Performance schema

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Part III: mysys instrumentation
This commit is contained in:
Marc Alff
2009-12-09 20:19:51 -07:00
parent 6fd3866c6c
commit c082955f06
64 changed files with 1383 additions and 919 deletions
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11
mysys/thr_mutex.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2000-2003 MySQL AB
/* Copyright (C) 2000-2003 MySQL AB, 2008-2009 Sun Microsystems, Inc
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
@ -39,6 +39,7 @@
#endif
#endif /* DO_NOT_REMOVE_THREAD_WRAPPERS */
/* Not instrumented */
static pthread_mutex_t THR_LOCK_mutex;
static ulong safe_mutex_count= 0; /* Number of mutexes created */
#ifdef SAFE_MUTEX_DETECT_DESTROY
@ -85,7 +86,9 @@ int safe_mutex_init(safe_mutex_t *mp,
pthread_mutex_unlock(&THR_LOCK_mutex);
}
#else
thread_safe_increment(safe_mutex_count, &THR_LOCK_mutex);
pthread_mutex_lock(&THR_LOCK_mutex);
safe_mutex_count++;
pthread_mutex_unlock(&THR_LOCK_mutex);
#endif /* SAFE_MUTEX_DETECT_DESTROY */
return 0;
}
@ -344,7 +347,9 @@ int safe_mutex_destroy(safe_mutex_t *mp, const char *file, uint line)
mp->info= NULL; /* Get crash if double free */
}
#else
thread_safe_sub(safe_mutex_count, 1, &THR_LOCK_mutex);
pthread_mutex_lock(&THR_LOCK_mutex);
safe_mutex_count--;
pthread_mutex_unlock(&THR_LOCK_mutex);
#endif /* SAFE_MUTEX_DETECT_DESTROY */
return error;
}