First draft of thread abstraction.

src/thread.h

@@ -0,0 +1,39 @@
+/* thread.h
+** XMPP client library -- thread abstraction header
+**
+** Copyright (C) 2005 Online Game Group. All rights reserved.
+**
+**  This software is provided AS-IS with no warranty, either express
+**  or implied.
+**
+**  This software is distributed under license and may not be copied,
+**  modified or distributed except as expressly authorized under the
+**  terms of the license contained in the file LICENSE.txt in this
+**  distribution.
+*/
+
+#ifndef __LIBSTROPHE_THREAD_H__
+#define __LIBSTROPHE_THREAD_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif
+
+#include "strophe.h"
+
+typedef struct _mutex_t mutex_t;
+
+/* mutex functions */
+
+mutex_t *mutex_create(const xmpp_ctx_t *ctx);
+int mutex_destroy(mutex_t *mutex);
+int mutex_lock(mutex_t *mutex);
+int mutex_trylock(mutex_t *mutex);
+int mutex_unlock(mutex_t *mutex);
+
+#endif /* __LIBSTROPHE_THREAD_H__ */