libfreerdp-utils: add mutex.

diff --git a/include/freerdp/utils/mutex.h b/include/freerdp/utils/mutex.h
new file mode 100644 (file)
index 0000000..1652bfe
--- /dev/null
+++ b/include/freerdp/utils/mutex.h
@@ -0,0 +1,30 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Client
+ * Mutex Utils
+ *
+ * Copyright 2011 Vic Lee
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __MUTEX_UTILS_H
+#define __MUTEX_UTILS_H
+
+typedef void* freerdp_mutex;
+
+freerdp_mutex freerdp_mutex_new(void);
+void freerdp_mutex_free(freerdp_mutex mutex);
+void freerdp_mutex_lock(freerdp_mutex mutex);
+void freerdp_mutex_unlock(freerdp_mutex mutex);
+
+#endif /* __MUTEX_UTILS_H */

diff --git a/libfreerdp-utils/CMakeLists.txt b/libfreerdp-utils/CMakeLists.txt
index cde41aa..ad482dc 100644 (file)
--- a/libfreerdp-utils/CMakeLists.txt
+++ b/libfreerdp-utils/CMakeLists.txt
@@ -21,6 +21,7 @@ set(FREERDP_UTILS_SRCS
        blob.c
        hexdump.c
        memory.c
+       mutex.c
        semaphore.c
        stream.c
        unicode.c)

diff --git a/libfreerdp-utils/mutex.c b/libfreerdp-utils/mutex.c
new file mode 100644 (file)
index 0000000..3b2639a
--- /dev/null
+++ b/libfreerdp-utils/mutex.c
@@ -0,0 +1,77 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Client
+ * Mutex Utils
+ *
+ * Copyright 2011 Vic Lee
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <freerdp/utils/memory.h>
+#include <freerdp/utils/mutex.h>
+
+#if defined _WIN32
+
+#include <windows.h>
+#define freerdp_mutex_t HANDLE
+
+#else
+
+#include <pthread.h>
+#define freerdp_mutex_t pthread_mutex_t
+
+#endif
+
+freerdp_mutex freerdp_mutex_new(void)
+{
+       freerdp_mutex_t* mutex;
+
+       mutex = (freerdp_mutex_t*)xmalloc(sizeof(freerdp_mutex_t));
+
+#if defined _WIN32
+       *mutex = CreateMutex(NULL, FALSE, NULL);
+#else
+       pthread_mutex_init(mutex, 0);
+#endif
+
+       return mutex;
+}
+
+void freerdp_mutex_free(freerdp_mutex mutex)
+{
+#if defined _WIN32
+       CloseHandle(*((freerdp_mutex_t*)mutex));
+#else
+       pthread_mutex_destroy((freerdp_mutex_t*)mutex);
+#endif
+
+       xfree(mutex);
+}
+
+void freerdp_mutex_lock(freerdp_mutex mutex)
+{
+#if defined _WIN32
+       WaitForSingleObject(*((freerdp_mutex_t*)mutex), INFINITE);
+#else
+       pthread_mutex_lock(mutex);
+#endif
+}
+
+void freerdp_mutex_unlock(freerdp_mutex mutex)
+{
+#if defined _WIN32
+       ReleaseMutex(*((freerdp_mutex_t*)mutex));
+#else
+       pthread_mutex_unlock(mutex);
+#endif
+}