Add os_unfair_lock support.

OS X 10.12 deprecated OSSpinLock; os_unfair_lock is the recommended
replacement.
This commit is contained in:
Jason Evans
2016-11-02 18:09:45 -07:00
parent a99e0fa2d2
commit 3f2b8d9cfa
7 changed files with 42 additions and 0 deletions

View File

@@ -8,6 +8,8 @@
typedef struct {
#ifdef _WIN32
CRITICAL_SECTION lock;
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock lock;
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLock lock;
#else

View File

@@ -11,6 +11,8 @@ mtx_init(mtx_t *mtx)
#ifdef _WIN32
if (!InitializeCriticalSectionAndSpinCount(&mtx->lock, _CRT_SPINCOUNT))
return (true);
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
mtx->lock = OS_UNFAIR_LOCK_INIT;
#elif (defined(JEMALLOC_OSSPIN))
mtx->lock = 0;
#else
@@ -33,6 +35,7 @@ mtx_fini(mtx_t *mtx)
{
#ifdef _WIN32
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
#elif (defined(JEMALLOC_OSSPIN))
#else
pthread_mutex_destroy(&mtx->lock);
@@ -45,6 +48,8 @@ mtx_lock(mtx_t *mtx)
#ifdef _WIN32
EnterCriticalSection(&mtx->lock);
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock_lock(&mtx->lock);
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockLock(&mtx->lock);
#else
@@ -58,6 +63,8 @@ mtx_unlock(mtx_t *mtx)
#ifdef _WIN32
LeaveCriticalSection(&mtx->lock);
#elif (defined(JEMALLOC_OS_UNFAIR_LOCK))
os_unfair_lock_unlock(&mtx->lock);
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockUnlock(&mtx->lock);
#else