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Diffstat (limited to 'src/libmowgli/thread/win32_mutexops.c')
-rw-r--r--src/libmowgli/thread/win32_mutexops.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/libmowgli/thread/win32_mutexops.c b/src/libmowgli/thread/win32_mutexops.c
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+++ b/src/libmowgli/thread/win32_mutexops.c
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+/*
+ * libmowgli: A collection of useful routines for programming.
+ * win32_mutexops.c: Windows mutex operations
+ *
+ * Copyright (c) 2011 Wilcox Technologies, LLC <awilcox -at- wilcox-tech.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
+ */
+
+#include "mowgli.h"
+
+
+/*************
+ * This Windows implementation is guaranteed to work on Windows 95,
+ * Windows NT 4, and anything later.
+ *************/
+#if defined(_WIN32)
+
+static int mowgli_win32_mutex_create(mowgli_mutex_t *mutex)
+{
+ mutex->mutex = CreateMutex(NULL, FALSE, NULL);
+ if(mutex->mutex == NULL)
+ return GetLastError();
+
+ return 0;
+}
+
+static int mowgli_win32_mutex_lock(mowgli_mutex_t *mutex)
+{
+ return WaitForSingleObject(mutex->mutex, INFINITE);
+}
+
+static int mowgli_win32_mutex_trylock(mowgli_mutex_t *mutex)
+{
+ return WaitForSingleObject(mutex->mutex, 0);
+}
+
+static int mowgli_win32_mutex_unlock(mowgli_mutex_t *mutex)
+{
+ if(ReleaseMutex(mutex->mutex) != 0)
+ return 0;
+
+ return GetLastError();
+}
+
+static int mowgli_win32_mutex_destroy(mowgli_mutex_t *mutex)
+{
+ CloseHandle(mutex->mutex);
+ return 0;
+}
+
+const mowgli_mutex_ops_t _mowgli_win32_mutex_ops = {
+ .mutex_create = mowgli_win32_mutex_create,
+ .mutex_lock = mowgli_win32_mutex_lock,
+ .mutex_trylock = mowgli_win32_mutex_trylock,
+ .mutex_unlock = mowgli_win32_mutex_unlock,
+ .mutex_destroy = mowgli_win32_mutex_destroy
+};
+
+#endif