5b281ba489ca18f0380d7efc7a5108b606cce449vboxsync * IPRT - Fast Mutex Semaphores, Ring-0 Driver, OS/2.
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * Copyright (c) 2007 knut st. osmundsen <bird-src-spam@anduin.net>
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * Permission is hereby granted, free of charge, to any person
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * obtaining a copy of this software and associated documentation
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * files (the "Software"), to deal in the Software without
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * restriction, including without limitation the rights to use,
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * copy, modify, merge, publish, distribute, sublicense, and/or sell
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * copies of the Software, and to permit persons to whom the
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * Software is furnished to do so, subject to the following
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * conditions:
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * The above copyright notice and this permission notice shall be
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * included in all copies or substantial portions of the Software.
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * OTHER DEALINGS IN THE SOFTWARE.
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync/*******************************************************************************
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync* Header Files *
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync*******************************************************************************/
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync/*******************************************************************************
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync* Structures and Typedefs *
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync*******************************************************************************/
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync * Wrapper for the OS/2 KEE mutex semaphore.
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync /** Magic value (RTSEMFASTMUTEX_MAGIC). */
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync /** The KEE mutex. */
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsyncRTDECL(int) RTSemFastMutexCreate(PRTSEMFASTMUTEX phFastMtx)
d1c5a03c19683c719b94496bb998fde2f2e5e622vboxsync AssertCompile(sizeof(RTSEMFASTMUTEXINTERNAL) > sizeof(void *));
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsync PRTSEMFASTMUTEXINTERNAL pThis = (PRTSEMFASTMUTEXINTERNAL)RTMemAlloc(sizeof(*pThis));
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsyncRTDECL(int) RTSemFastMutexDestroy(RTSEMFASTMUTEX hFastMtx)
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsync AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsync ASMAtomicWriteU32(&pThis->u32Magic, RTSEMFASTMUTEX_MAGIC_DEAD);
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsyncRTDECL(int) RTSemFastMutexRequest(RTSEMFASTMUTEX hFastMtx)
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsync AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsyncRTDECL(int) RTSemFastMutexRelease(RTSEMFASTMUTEX hFastMtx)
47c238f82281a3771c8bfb66858da823ecf03dbcvboxsync AssertMsgReturn(pThis->u32Magic == RTSEMFASTMUTEX_MAGIC, ("%p: u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);