mbed school
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mbed-rtos-for-old
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mbed-rtos
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Diff: rtos/Mutex.cpp
- Revision:
- 6:350b53afb889
- Child:
- 8:88a1a9c26ae3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rtos/Mutex.cpp Fri Nov 23 09:57:31 2012 +0000
@@ -0,0 +1,35 @@
+#include "Mutex.h"
+
+#include <string.h>
+#include "error.h"
+
+namespace rtos {
+
+Mutex::Mutex() {
+#ifdef CMSIS_OS_RTX
+ memset(_mutex_data, 0, sizeof(_mutex_data));
+ _osMutexDef.mutex = _mutex_data;
+#endif
+ _osMutexId = osMutexCreate(&_osMutexDef);
+ if (_osMutexId == NULL) {
+ error("Error initializing the mutex object\n");
+ }
+}
+
+osStatus Mutex::lock(uint32_t millisec) {
+ return osMutexWait(_osMutexId, millisec);
+}
+
+bool Mutex::trylock() {
+ return (osMutexWait(_osMutexId, 0) == osOK);
+}
+
+osStatus Mutex::unlock() {
+ return osMutexRelease(_osMutexId);
+}
+
+Mutex::~Mutex() {
+ osMutexDelete(_osMutexId);
+}
+
+}