X-Git-Url: http://rtime.felk.cvut.cz/gitweb/pes-rpp/rpp-lib.git/blobdiff_plain/9ebcc693fb87247af18d94ba3c65229187f73a94..573021795371f41a23ed0fe0b5171f38bb96d86e:/rpp/include/rpp/mutex.h

diff --git a/rpp/include/rpp/mutex.h b/rpp/include/rpp/mutex.h
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+/*
+ * Copyright (C) 2015 Czech Technical University in Prague
+ *
+ * Authors:
+ *     - Michal Sojka <sojkam1@fel.cvut.cz>
+ *
+ * This document contains proprietary information belonging to Czech
+ * Technical University in Prague. Passing on and copying of this
+ * document, and communication of its contents is not permitted
+ * without prior written authorization.
+ *
+ */
+
+#ifndef RPP_MUTEX_H
+#define RPP_MUTEX_H
+
+#ifndef RPP_THREADSAFE
+#define RPP_THREADSAFE 1
+#endif
+
+#if RPP_THREADSAFE
+
+#include <os/semphr.h>
+
+#define RPP_MUTEX_DEFINE(mutex) static xSemaphoreHandle mutex
+#define RPP_MUTEX_INIT(mutex)   (((mutex) = xSemaphoreCreateMutex()) != NULL)
+#define RPP_MUTEX_LOCK(mutex)   xSemaphoreTake((mutex), portMAX_DELAY)
+#define RPP_MUTEX_UNLOCK(mutex) xSemaphoreGive(mutex)
+
+#else
+
+#define RPP_MUTEX_DEFINE(mutex)
+#define RPP_MUTEX_INIT(mutex) true
+#define RPP_MUTEX_LOCK(mutex)
+#define RPP_MUTEX_UNLOCK(mutex)
+
+#endif
+
+#endif