diff options
Diffstat (limited to 'src/libmowgli/thread/win32_mutexops.c')
-rw-r--r-- | src/libmowgli/thread/win32_mutexops.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/libmowgli/thread/win32_mutexops.c b/src/libmowgli/thread/win32_mutexops.c new file mode 100644 index 0000000..486992f --- /dev/null +++ b/src/libmowgli/thread/win32_mutexops.c @@ -0,0 +1,74 @@ +/* + * 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 |