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-rw-r--r--ext/mysql/libmysql/thr_mutex.c217
1 files changed, 0 insertions, 217 deletions
diff --git a/ext/mysql/libmysql/thr_mutex.c b/ext/mysql/libmysql/thr_mutex.c
deleted file mode 100644
index 7ec8bfb59a..0000000000
--- a/ext/mysql/libmysql/thr_mutex.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
-This file is public domain and comes with NO WARRANTY of any kind */
-
-/* This makes a wrapper for mutex handling to make it easier to debug mutex */
-
-#include <global.h>
-#if defined(HAVE_LINUXTHREADS) && !defined (__USE_UNIX98)
-#define __USE_UNIX98 /* To get rw locks under Linux */
-#endif
-#include <m_string.h>
-#if defined(THREAD) && defined(SAFE_MUTEX)
-#undef SAFE_MUTEX /* Avoid safe_mutex redefinitions */
-#include <my_pthread.h>
-
-#ifndef DO_NOT_REMOVE_THREAD_WRAPPERS
-/* Remove wrappers */
-#undef pthread_mutex_init
-#undef pthread_mutex_lock
-#undef pthread_mutex_unlock
-#undef pthread_mutex_destroy
-#undef pthread_cond_wait
-#undef pthread_cond_timedwait
-#ifdef HAVE_NONPOSIX_PTHREAD_MUTEX_INIT
-#define pthread_mutex_init(a,b) my_pthread_mutex_init((a),(b))
-#endif
-#endif /* DO_NOT_REMOVE_THREAD_WRAPPERS */
-
-int safe_mutex_init(safe_mutex_t *mp,
- const pthread_mutexattr_t *attr __attribute__((unused)))
-{
- bzero((char*) mp,sizeof(*mp));
- pthread_mutex_init(&mp->global,MY_MUTEX_INIT_ERRCHK);
- pthread_mutex_init(&mp->mutex,attr);
- return 0;
-}
-
-int safe_mutex_lock(safe_mutex_t *mp,const char *file, uint line)
-{
- int error;
- pthread_mutex_lock(&mp->global);
- if (mp->count > 0 && pthread_equal(pthread_self(),mp->thread))
- {
- fprintf(stderr,"safe_mutex: Trying to lock mutex at %s, line %d, when the mutex was already locked at %s, line %d\n",
- file,line,mp->file,mp->line);
- fflush(stderr);
- abort();
- }
- pthread_mutex_unlock(&mp->global);
- error=pthread_mutex_lock(&mp->mutex);
- if (error || (error=pthread_mutex_lock(&mp->global)))
- {
- fprintf(stderr,"Got error %d when trying to lock mutex at %s, line %d\n",
- error, file, line);
- fflush(stderr);
- abort();
- }
- if (mp->count++)
- {
- fprintf(stderr,"safe_mutex: Error in thread libray: Got mutex at %s, line %d more than 1 time\n", file,line);
- fflush(stderr);
- abort();
- }
- mp->thread=pthread_self();
- mp->file= (char*) file;
- mp->line=line;
- pthread_mutex_unlock(&mp->global);
- return error;
-}
-
-
-int safe_mutex_unlock(safe_mutex_t *mp,const char *file, uint line)
-{
- int error;
- pthread_mutex_lock(&mp->global);
- if (mp->count == 0)
- {
- fprintf(stderr,"safe_mutex: Trying to unlock mutex that wasn't locked at %s, line %d\n Last used at %s, line: %d\n",
- file,line,mp->file ? mp->file : "",mp->line);
- fflush(stderr);
- abort();
- }
- if (!pthread_equal(pthread_self(),mp->thread))
- {
- fprintf(stderr,"safe_mutex: Trying to unlock mutex at %s, line %d that was locked by another thread at: %s, line: %d\n",
- file,line,mp->file,mp->line);
- fflush(stderr);
- abort();
- }
- mp->count--;
-#ifdef __WIN__
- pthread_mutex_unlock(&mp->mutex);
- error=0;
-#else
- error=pthread_mutex_unlock(&mp->mutex);
- if (error)
- {
- fprintf(stderr,"safe_mutex: Got error: %d when trying to unlock mutex at %s, line %d\n", error, file, line);
- fflush(stderr);
- abort();
- }
-#endif /* __WIN__ */
- pthread_mutex_unlock(&mp->global);
- return error;
-}
-
-
-int safe_cond_wait(pthread_cond_t *cond, safe_mutex_t *mp, const char *file,
- uint line)
-{
- int error;
- pthread_mutex_lock(&mp->global);
- if (mp->count == 0)
- {
- fprintf(stderr,"safe_mutex: Trying to cond_wait on a unlocked mutex at %s, line %d\n",file,line);
- fflush(stderr);
- abort();
- }
- if (!pthread_equal(pthread_self(),mp->thread))
- {
- fprintf(stderr,"safe_mutex: Trying to cond_wait on a mutex at %s, line %d that was locked by another thread at: %s, line: %d\n",
- file,line,mp->file,mp->line);
- fflush(stderr);
- abort();
- }
-
- if (mp->count-- != 1)
- {
- fprintf(stderr,"safe_mutex: Count was %d on locked mutex at %s, line %d\n",
- mp->count+1, file, line);
- fflush(stderr);
- abort();
- }
- pthread_mutex_unlock(&mp->global);
- error=pthread_cond_wait(cond,&mp->mutex);
- pthread_mutex_lock(&mp->global);
- if (error)
- {
- fprintf(stderr,"safe_mutex: Got error: %d when doing a safe_mutex_wait at %s, line %d\n", error, file, line);
- fflush(stderr);
- abort();
- }
- if (mp->count++)
- {
- fprintf(stderr,
- "safe_mutex: Count was %d in thread %lx when locking mutex at %s, line %d\n",
- mp->count-1, my_thread_id(), file, line);
- fflush(stderr);
- abort();
- }
- mp->thread=pthread_self();
- mp->file= (char*) file;
- mp->line=line;
- pthread_mutex_unlock(&mp->global);
- return error;
-}
-
-
-int safe_cond_timedwait(pthread_cond_t *cond, safe_mutex_t *mp,
- struct timespec *abstime,
- const char *file, uint line)
-{
- int error;
- pthread_mutex_lock(&mp->global);
- if (mp->count != 1 || !pthread_equal(pthread_self(),mp->thread))
- {
- fprintf(stderr,"safe_mutex: Trying to cond_wait at %s, line %d on a not hold mutex\n",file,line);
- fflush(stderr);
- abort();
- }
- mp->count--; /* Mutex will be released */
- pthread_mutex_unlock(&mp->global);
- error=pthread_cond_timedwait(cond,&mp->mutex,abstime);
-#ifdef EXTRA_DEBUG
- if (error && (error != EINTR && error != ETIMEDOUT))
- {
- fprintf(stderr,"safe_mutex: Got error: %d when doing a safe_mutex_timedwait at %s, line %d\n", error, file, line);
- }
-#endif
- pthread_mutex_lock(&mp->global);
- if (mp->count++)
- {
- fprintf(stderr,
- "safe_mutex: Count was %d in thread %lx when locking mutex at %s, line %d (error: %d)\n",
- mp->count-1, my_thread_id(), file, line, error);
- fflush(stderr);
- abort();
- }
- mp->thread=pthread_self();
- mp->file= (char*) file;
- mp->line=line;
- pthread_mutex_unlock(&mp->global);
- return error;
-}
-
-int safe_mutex_destroy(safe_mutex_t *mp, const char *file, uint line)
-{
- int error=0;
- if (mp->count != 0)
- {
- fprintf(stderr,"safe_mutex: Trying to destroy a mutex that was locked at %s, line %d at %s, line %d\n",
- mp->file,mp->line, file, line);
- fflush(stderr);
- abort();
- }
-#ifdef __WIN__
- pthread_mutex_destroy(&mp->global);
- pthread_mutex_destroy(&mp->mutex);
-#else
- if (pthread_mutex_destroy(&mp->global))
- error=1;
- if (pthread_mutex_destroy(&mp->mutex))
- error=1;
-#endif
- return error;
-}
-
-#endif /* THREAD && SAFE_MUTEX */
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