add threadwork/BMutex

threadwork/BMutex.h

@@ -0,0 +1,106 @@
+/**
+ * @file BMutex.h
+ * @author Ambroz Bizjak <ambrop7@gmail.com>
+ * 
+ * @section LICENSE
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef BADVPN_BMUTEX_H
+#define BADVPN_BMUTEX_H
+
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+#include <pthread.h>
+#endif
+
+#include <misc/debug.h>
+#include <base/DebugObject.h>
+
+typedef struct {
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+    pthread_mutex_t pthread_mutex;
+    DebugObject d_obj;
+#endif
+} BMutex;
+
+static int BMutex_Init (BMutex *o) WARN_UNUSED;
+static void BMutex_Free (BMutex *o);
+static void BMutex_Lock (BMutex *o);
+static void BMutex_Unlock (BMutex *o);
+
+static int BMutex_Init (BMutex *o)
+{
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+    if (pthread_mutex_init(&o->pthread_mutex, NULL) != 0) {
+        return 0;
+    }
+    
+    DebugObject_Init(&o->d_obj);
+    return 1;
+#else
+    ASSERT(0)
+    return 0;
+#endif
+}
+
+static void BMutex_Free (BMutex *o)
+{
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+    DebugObject_Free(&o->d_obj);
+    
+    int res = pthread_mutex_destroy(&o->pthread_mutex);
+    B_USE(res)
+    ASSERT(res == 0)
+#else
+    ASSERT(0)
+#endif
+}
+
+static void BMutex_Lock (BMutex *o)
+{
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+    DebugObject_Access(&o->d_obj);
+    
+    int res = pthread_mutex_lock(&o->pthread_mutex);
+    B_USE(res)
+    ASSERT(res == 0)
+#else
+    ASSERT(0)
+#endif
+}
+
+static void BMutex_Unlock (BMutex *o)
+{
+#ifdef BADVPN_THREADWORK_USE_PTHREAD
+    DebugObject_Access(&o->d_obj);
+    
+    int res = pthread_mutex_unlock(&o->pthread_mutex);
+    B_USE(res)
+    ASSERT(res == 0)
+#else
+    ASSERT(0)
+#endif
+}
+
+#endif