From cde63164e7f952ed0980fe62877796b81f749310 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Thu, 7 Jun 2001 08:27:44 +0000
Subject: 	* semaphore.h (sem_t): Is now an opaque pointer; 	moved
 actual definition to implement.h. 	* implement.h (sem_t_): Move here from
 semaphore.h; 	was the definition of sem_t. 	* semaphore.c: Wherever
 necessary, changed use of sem 	from that of a pointer to a pointer-pointer;
 added 	extra checks for a valid sem_t; NULL sem_t when 	it is
 destroyed; added extra checks when creating 	and destroying sem_t elements
 in the NEED_SEM 	code branches; changed from using a pthread_mutex_t 
 ((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs) 	in NEED_SEM
 branches for access serialisation.

---
 implement.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'implement.h')

diff --git a/implement.h b/implement.h
index 1b57b60..9518f9e 100644
--- a/implement.h
+++ b/implement.h
@@ -114,11 +114,21 @@ struct pthread_attr_t_ {
 /*
  * ====================
  * ====================
- * Mutexes and Condition Variables
+ * Semaphores, Mutexes and Condition Variables
  * ====================
  * ====================
  */
 
+#ifdef NEED_SEM
+typedef struct {
+  unsigned int	value;
+  CRITICAL_SECTION sem_lock_cs;
+  HANDLE	event;
+} sem_t_;
+#else /* NEED_SEM */
+typedef HANDLE sem_t_;
+#endif /* NEED_SEM */
+
 #define PTW32_OBJECT_AUTO_INIT ((void *) -1)
 #define PTW32_OBJECT_INVALID   NULL
 
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