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This commit is contained in:
Anthony Minessale 2017-03-27 17:23:41 -05:00
parent ac3758df70
commit e3dd169d63
1 changed files with 17 additions and 0 deletions
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17
libs/libks/src/ks_mutex.c
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@ -431,6 +431,7 @@ struct ks_rwl {
SRWLOCK rwlock;
ks_hash_t *read_lock_list;
ks_mutex_t *read_lock_mutex;
ks_mutex_t *write_lock_mutex;
#else
pthread_rwlock_t rwlock;
#endif
@ -484,6 +485,10 @@ KS_DECLARE(ks_status_t) ks_rwl_create(ks_rwl_t **rwlock, ks_pool_t *pool)
goto done;
}
if (ks_mutex_create(&check->write_lock_mutex, KS_MUTEX_FLAG_DEFAULT, pool) != KS_STATUS_SUCCESS) {
goto done;
}
InitializeSRWLock(&check->rwlock);
#else
if ((pthread_rwlock_init(&check->rwlock, NULL))) {
@ -502,6 +507,7 @@ KS_DECLARE(ks_status_t) ks_rwl_read_lock(ks_rwl_t *rwlock)
{
#ifdef WIN32
ks_mutex_lock(rwlock->write_lock_mutex);
ks_mutex_lock(rwlock->read_lock_mutex);
int count = (int)(intptr_t)ks_hash_remove(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id());
@ -509,6 +515,7 @@ KS_DECLARE(ks_status_t) ks_rwl_read_lock(ks_rwl_t *rwlock)
if (count) {
ks_hash_insert(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id(), (void *)(intptr_t)++count);
ks_mutex_unlock(rwlock->read_lock_mutex);
ks_mutex_unlock(rwlock->write_lock_mutex);
return KS_STATUS_SUCCESS;
}
@ -520,6 +527,7 @@ KS_DECLARE(ks_status_t) ks_rwl_read_lock(ks_rwl_t *rwlock)
#ifdef WIN32
ks_hash_insert(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id(), (void *)(intptr_t)(int)1);
ks_mutex_unlock(rwlock->read_lock_mutex);
ks_mutex_unlock(rwlock->write_lock_mutex);
#endif
return KS_STATUS_SUCCESS;
@ -536,6 +544,7 @@ KS_DECLARE(ks_status_t) ks_rwl_write_lock(ks_rwl_t *rwlock)
}
#ifdef WIN32
ks_mutex_lock(rwlock->write_lock_mutex);
AcquireSRWLockExclusive(&rwlock->rwlock);
#else
pthread_rwlock_wrlock(&rwlock->rwlock);
@ -548,6 +557,10 @@ KS_DECLARE(ks_status_t) ks_rwl_write_lock(ks_rwl_t *rwlock)
KS_DECLARE(ks_status_t) ks_rwl_try_read_lock(ks_rwl_t *rwlock)
{
#ifdef WIN32
if (ks_mutex_trylock(rwlock->write_lock_mutex) != KS_STATUS_SUCCESS) {
return KS_STATUS_FALSE;
}
ks_mutex_lock(rwlock->read_lock_mutex);
int count = (int)(intptr_t)ks_hash_remove(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id());
@ -555,11 +568,13 @@ KS_DECLARE(ks_status_t) ks_rwl_try_read_lock(ks_rwl_t *rwlock)
if (count) {
ks_hash_insert(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id(), (void *)(intptr_t)++count);
ks_mutex_unlock(rwlock->read_lock_mutex);
ks_mutex_unlock(rwlock->write_lock_mutex);
return KS_STATUS_SUCCESS;
}
if (!TryAcquireSRWLockShared(&rwlock->rwlock)) {
ks_mutex_unlock(rwlock->read_lock_mutex);
ks_mutex_unlock(rwlock->write_lock_mutex);
return KS_STATUS_FAIL;
}
#else
@ -571,6 +586,7 @@ KS_DECLARE(ks_status_t) ks_rwl_try_read_lock(ks_rwl_t *rwlock)
#ifdef WIN32
ks_hash_insert(rwlock->read_lock_list, (void *)(intptr_t)ks_thread_self_id(), (void *)(intptr_t)(int)1);
ks_mutex_unlock(rwlock->read_lock_mutex);
ks_mutex_unlock(rwlock->write_lock_mutex);
#endif
return KS_STATUS_SUCCESS;
@ -635,6 +651,7 @@ KS_DECLARE(ks_status_t) ks_rwl_write_unlock(ks_rwl_t *rwlock)
#ifdef WIN32
ReleaseSRWLockExclusive(&rwlock->rwlock);
ks_mutex_unlock(rwlock->write_lock_mutex);
#else
pthread_rwlock_unlock(&rwlock->rwlock);
#endif