Diff: pbpal_mutex.h

Revision:

0:389a44951c54

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pbpal_mutex.h	Thu Nov 10 22:23:46 2016 +0000
@@ -0,0 +1,32 @@
+/* -*- c-file-style:"stroustrup"; indent-tabs-mode: nil -*- */
+#if !defined INC_PBPAL_MUTEX
+#define      INC_PBPAL_MUTEX
+
+/** @file pbpal_mutex.h
+    PAL for mutex(es) on mbed, using CMSIS-RTOS API.
+ */
+
+#include "cmsis_os.h"
+
+struct pbcmsis_mutex {
+    osMutexId mutid;
+    osMutexDef_t mutdef;
+};
+
+typedef struct pbcmsis_mutex pbpal_mutex_t;
+
+#define pbpal_mutex_init(m) do {                                        \
+    memset(&((m).mutdef), 0, sizeof (m).mutdef);                        \
+    (m).mutid = osMutexCreate((m).mutef);                               \
+    } while (0)
+
+#define pbpal_mutex_lock(m) osMutexWait((m).mutid, osWaitForever)
+#define pbpal_mutex_unlock(m) osMutexRelease((m).mutid)
+#define pbpal_mutex_destroy(m) osMutexDelete((m).mutid)
+#define pbpal_mutex_decl_and_init(m) pbpal_mutex_t m = { 0 }; (m).mutid = osMutexCreate(&(m).mutdef)
+#define pbpal_mutex_static_decl_and_init(m) static pbpal_mutex_t m = { 0 }
+#define pbpal_mutex_init_static(m) (m).mutid = osMutexCreate(&(m).mutdef)
+
+
+#endif /*!defined INC_PBPAL_MUTEX*/
+