spinlock-r0drv-os2.cpp revision 881b5ff6bc55e1fb0f4ef42f9782ccec79c0a138
5b281ba489ca18f0380d7efc7a5108b606cce449vboxsync * InnoTek Portable Runtime - Spinlocks, Ring-0 Driver, OS/2.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Copyright (c) 2007 knut st. osmundsen <bird-src-spam@anduin.net>
804197ca1d56719343cd21af782ddc2c695a6760vboxsync * Permission is hereby granted, free of charge, to any person
804197ca1d56719343cd21af782ddc2c695a6760vboxsync * obtaining a copy of this software and associated documentation
804197ca1d56719343cd21af782ddc2c695a6760vboxsync * files (the "Software"), to deal in the Software without
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * restriction, including without limitation the rights to use,
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * copy, modify, merge, publish, distribute, sublicense, and/or sell
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * copies of the Software, and to permit persons to whom the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Software is furnished to do so, subject to the following
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * conditions:
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * The above copyright notice and this permission notice shall be
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * included in all copies or substantial portions of the Software.
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync/*******************************************************************************
65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync* Header Files *
65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync*******************************************************************************/
65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync/*******************************************************************************
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync* Structures and Typedefs *
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync*******************************************************************************/
76fa7570c3b6268d459098f86d74d369c1d85f4cvboxsync * Wrapper for the SpinLock_t type.
4157c84dffb94fe976739ad709e4fd95d22c6667vboxsync /** Spinlock magic value (RTSPINLOCK_MAGIC). */
6988e736149e8800875f9fbb001a6018926d6562vboxsync /** The OS/2 spinlock structure. */
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync * Allocate.
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync AssertCompile(sizeof(RTSPINLOCKINTERNAL) > sizeof(void *));
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)RTMemAlloc(sizeof(*pSpinlockInt));
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync * Initialize & return.
db55f7b1060a6a72704b5369a8e776c59e5e4f64vboxsync * Validate input.
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)Spinlock;
db55f7b1060a6a72704b5369a8e776c59e5e4f64vboxsync AssertMsgReturn(pSpinlockInt->u32Magic == RTSPINLOCK_MAGIC,
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync ("Invalid spinlock %p magic=%#x\n", pSpinlockInt, pSpinlockInt->u32Magic),
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync * Make the lock invalid and release the memory.
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsyncRTDECL(void) RTSpinlockAcquireNoInts(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp)
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)Spinlock;
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync Assert(pSpinlockInt->u32Magic == RTSPINLOCK_MAGIC);
db55f7b1060a6a72704b5369a8e776c59e5e4f64vboxsyncRTDECL(void) RTSpinlockReleaseNoInts(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp)
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)Spinlock;
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync Assert(pSpinlockInt->u32Magic == RTSPINLOCK_MAGIC);
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsyncRTDECL(void) RTSpinlockAcquire(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp)
65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)Spinlock;
65a755c25b49d32c914e2d569fcdfb766e1ee879vboxsync Assert(pSpinlockInt->u32Magic == RTSPINLOCK_MAGIC);
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsyncRTDECL(void) RTSpinlockRelease(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp)
ababd7e83ee3d23c5191a0d3802f10764df69e36vboxsync PRTSPINLOCKINTERNAL pSpinlockInt = (PRTSPINLOCKINTERNAL)Spinlock;