From 59af1e8d99d33f438b3b769a060b7d7ce8cde61f Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 31 Jan 2012 03:20:19 +0000
Subject: Use Mach semaphores instead of ancient (and now deprecated) Mac
 semaphore API.

git-svn-id: http://svn.drobilla.net/zix/trunk@48 df6676b4-ccc9-40e5-b5d6-7c4628a128e3
---
 zix/sem.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/zix/sem.h b/zix/sem.h
index 0830c53..88fe17c 100644
--- a/zix/sem.h
+++ b/zix/sem.h
@@ -20,8 +20,7 @@
 #include <stdbool.h>
 
 #ifdef __APPLE__
-#    include <limits.h>
-#    include <CoreServices/CoreServices.h>
+#    include <mach/mach.h>
 #else
 #    include <semaphore.h>
 #endif
@@ -95,38 +94,39 @@ zix_sem_try_wait(ZixSem* sem);
 #ifdef __APPLE__
 
 struct ZixSemImpl {
-	MPSemaphoreID sem;
+	semaphore_t sem;
 };
 
 static inline ZixStatus
 zix_sem_init(ZixSem* sem, unsigned initial)
 {
-	return MPCreateSemaphore(UINT_MAX, initial, &sem->sem)
+	return semaphore_create(mach_task_self(), &sem->sem, SYNC_POLICY_FIFO, 0)
 		? ZIX_STATUS_SUCCESS : ZIX_STATUS_ERROR;
 }
 
 static inline void
 zix_sem_destroy(ZixSem* sem)
 {
-	MPDeleteSemaphore(sem->sem);
+	semaphore_destroy(mach_task_self(), sem->sem);
 }
 
 static inline void
 zix_sem_post(ZixSem* sem)
 {
-	MPSignalSemaphore(sem->sem);
+	semaphore_signal(sem->sem);
 }
 
 static inline void
 zix_sem_wait(ZixSem* sem)
 {
-	MPWaitOnSemaphore(sem->sem, kDurationForever);
+	semaphore_wait(sem->sem);
 }
 
 static inline bool
 zix_sem_try_wait(ZixSem* sem)
 {
-	return MPWaitOnSemaphore(sem->sem, kDurationImmediate) == noErr;
+	const mach_timespec_t zero = { 0, 0 };
+	return semaphore_timedwait(sem->sem, zero) == KERN_SUCCESS;
 }
 
 #else  /* !defined(__APPLE__) */
-- 
cgit v1.2.1