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Implement error checking for pthreads calls in thread-safe mode. They really

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should always succeed, but in the likely event of a failure we would
previously fall through *without locking* - the new code will exit(1).

Printing the error message on stderr will not work for all applications, but
it's better than nothing at all - and our API doesn't provide a way to return
the error to the caller.
This commit is contained in:
Magnus Hagander
2008-05-16 18:30:53 +00:00
parent 0ff81a525e
commit 1d89026788
4 changed files with 56 additions and 17 deletions
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19
src/interfaces/libpq/pthread-win32.c
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@@ -5,7 +5,7 @@
*
* Copyright (c) 2004-2008, PostgreSQL Global Development Group
* IDENTIFICATION
* $PostgreSQL: pgsql/src/interfaces/libpq/pthread-win32.c,v 1.15 2008/01/01 19:46:00 momjian Exp $
* $PostgreSQL: pgsql/src/interfaces/libpq/pthread-win32.c,v 1.16 2008/05/16 18:30:53 mha Exp $
*
*-------------------------------------------------------------------------
*/
@@ -32,20 +32,27 @@ pthread_getspecific(pthread_key_t key)
return NULL;
}
void
int
pthread_mutex_init(pthread_mutex_t *mp, void *attr)
{
*mp = CreateMutex(0, 0, 0);
if (*mp == NULL)
return 1;
return 0;
}
void
int
pthread_mutex_lock(pthread_mutex_t *mp)
{
WaitForSingleObject(*mp, INFINITE);
if (WaitForSingleObject(*mp, INFINITE) != WAIT_OBJECT_0)
return 1;
return 0;
}
void
int
pthread_mutex_unlock(pthread_mutex_t *mp)
{
ReleaseMutex(*mp);
if (!ReleaseMutex(*mp))
return 1;
return 0;
}