initial check in of cross platform thread and mutex abstraction (just recursive mutexes so far).

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@55 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/include/zap_threadmutex.h

@@ -0,0 +1,37 @@
+/* 
+ * Cross Platform Thread/Mutex abstraction
+ * Copyright(C) 2007 Michael Jerris
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so.
+ *
+ * This work is provided under this license on an "as is" basis, without warranty of any kind,
+ * either expressed or implied, including, without limitation, warranties that the covered code
+ * is free of defects, merchantable, fit for a particular purpose or non-infringing. The entire
+ * risk as to the quality and performance of the covered code is with you. Should any covered
+ * code prove defective in any respect, you (not the initial developer or any other contributor)
+ * assume the cost of any necessary servicing, repair or correction. This disclaimer of warranty
+ * constitutes an essential part of this license. No use of any covered code is authorized hereunder
+ * except under this disclaimer. 
+ *
+ */
+
+
+#ifndef _ZAP_THREADMUTEX_H
+#define _ZAP_THREADMUTEX_H
+
+typedef struct mutex mutex_t;
+
+typedef enum mutex_status {
+	MUTEX_SUCCESS,
+	MUTEX_FAILURE
+} mutex_status_t;
+
+mutex_status_t zap_mutex_create(mutex_t **mutex);
+mutex_status_t zap_mutex_destroy(mutex_t *mutex);
+mutex_status_t zap_mutex_lock(mutex_t *mutex);
+mutex_status_t zap_mutex_trylock(mutex_t *mutex);
+mutex_status_t zap_mutex_unlock(mutex_t *mutex);
+
+#endif