diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-21 05:05:26 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-21 05:05:26 +0000 |
| commit | e75d99818dd3940be997520e64db8c9e3b207e39 (patch) | |
| tree | 0003ca0de74fcc8d18433e34ea68d2e7aaf06b7c /src/interfaces/libpq/pthread-win32.c | |
| parent | Releasing progress-linux version 15.6-0+deb12u1~progress6.99u1. (diff) | |
| download | postgresql-15-e75d99818dd3940be997520e64db8c9e3b207e39.tar.xz postgresql-15-e75d99818dd3940be997520e64db8c9e3b207e39.zip | |
Merging upstream version 15.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/interfaces/libpq/pthread-win32.c')
| -rw-r--r-- | src/interfaces/libpq/pthread-win32.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/src/interfaces/libpq/pthread-win32.c b/src/interfaces/libpq/pthread-win32.c index c0e056e..c9609c0 100644 --- a/src/interfaces/libpq/pthread-win32.c +++ b/src/interfaces/libpq/pthread-win32.c @@ -34,27 +34,33 @@ pthread_getspecific(pthread_key_t key) int pthread_mutex_init(pthread_mutex_t *mp, void *attr) { - *mp = (CRITICAL_SECTION *) malloc(sizeof(CRITICAL_SECTION)); - if (!*mp) - return 1; - InitializeCriticalSection(*mp); + mp->initstate = 0; return 0; } int pthread_mutex_lock(pthread_mutex_t *mp) { - if (!*mp) - return 1; - EnterCriticalSection(*mp); + /* Initialize the csection if not already done */ + if (mp->initstate != 1) + { + LONG istate; + + while ((istate = InterlockedExchange(&mp->initstate, 2)) == 2) + Sleep(0); /* wait, another thread is doing this */ + if (istate != 1) + InitializeCriticalSection(&mp->csection); + InterlockedExchange(&mp->initstate, 1); + } + EnterCriticalSection(&mp->csection); return 0; } int pthread_mutex_unlock(pthread_mutex_t *mp) { - if (!*mp) - return 1; - LeaveCriticalSection(*mp); + if (mp->initstate != 1) + return EINVAL; + LeaveCriticalSection(&mp->csection); return 0; } |