1 files changed, 66 insertions, 0 deletions
diff --git a/src/include/mutexes.h b/src/include/mutexes.h
new file mode 100644
index 000000000..e2881423d
--- /dev/null
+++ b/src/include/mutexes.h
@@ -0,0 +1,66 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @addtogroup Mutexes
+ * @{
+ */
+
+#ifndef _MUTEXES_H_
+#define _MUTEXES_H_
+
+#ifdef CH_USE_MUTEXES
+
+typedef struct Mutex Mutex;
+
+struct Mutex {
+  /** Queue of the threads sleeping on this Mutex.*/
+  ThreadsQueue  m_queue;
+  /** Owner \p Thread pointer or \p NULL.*/
+  Thread        *m_owner;
+  /** Next \p Mutex into an owner-list, \p NULL if none.*/
+  Mutex         *m_next;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void chMtxInit(Mutex *mp);
+  void chMtxLock(Mutex *mp);
+  void chMtxLockS(Mutex *mp);
+  BOOL chMtxTryLock(Mutex *mp);
+  BOOL chMtxTryLockS(Mutex *mp);
+  void chMtxUnlock(void);
+  void chMtxUnlockS(void);
+  void chMtxUnlockAll(void);
+  void chMtxUnlockAllS(void);
+#ifdef __cplusplus
+}
+#endif
+
+/**
+ * Returns \p TRUE if the mutex queus contains at least a waiting thread.
+ */
+#define chMtxQueueNotEmptyS(mp) notempty(&(mp)->m_queue)
+
+#endif /* CH_USE_MUTEXES */
+
+#endif /* _MUTEXES_H_ */
+
+/** @} */