semmutex-win.cpp revision 549e45e906cbe16cbeb2704c3a7354aa8ab022b4
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync/* $Id$ */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @file
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync * IPRT - Mutex Semaphores, Windows.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2006-2009 Sun Microsystems, Inc.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * available from http://www.virtualbox.org. This file is free software;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * The contents of this file may alternatively be used under the terms
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * of the Common Development and Distribution License Version 1.0
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * VirtualBox OSE distribution, in which case the provisions of the
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * CDDL are applicable instead of those of the GPL.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
cd6f71bc352f550074f1ba2c830a2cf2f0b3dd46vboxsync * You may elect to license modified versions of this file under the
43747b1f0bc8302a238fb35e55857a5e9aa1933dvboxsync * terms and conditions of either the GPL or the CDDL or both.
43747b1f0bc8302a238fb35e55857a5e9aa1933dvboxsync *
43747b1f0bc8302a238fb35e55857a5e9aa1933dvboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
16a9adc14900ca18e6909679a579f6833425e030vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * additional information or have any questions.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync* Header Files *
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync*******************************************************************************/
a9f41cb889f53e8407561a6155052c441eb0fc5fvboxsync#define LOG_GROUP RTLOGGROUP_SEMAPHORE
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync#include <Windows.h>
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync
b0b15690f00527424b2d5fb88456d747252322f7vboxsync#include <iprt/semaphore.h>
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync#include "internal/iprt.h"
efff36b306e370346025647a158689021df2e1d1vboxsync
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync#include <iprt/asm.h>
590bfe12ce22cd3716448fbb9f4dc51664bfe5e2vboxsync#include <iprt/assert.h>
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync#include <iprt/err.h>
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync#include <iprt/lockvalidator.h>
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync#include <iprt/mem.h>
590bfe12ce22cd3716448fbb9f4dc51664bfe5e2vboxsync#include <iprt/thread.h>
efff36b306e370346025647a158689021df2e1d1vboxsync#include "internal/magics.h"
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include "internal/strict.h"
f5e53763b0a581b0299e98028c6c52192eb06785vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
efff36b306e370346025647a158689021df2e1d1vboxsync/*******************************************************************************
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync* Defined Constants And Macros *
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsync*******************************************************************************/
efff36b306e370346025647a158689021df2e1d1vboxsync/** Posix internal representation of a Mutex semaphore. */
51fe8789a74f6c118894aaa12eb69ec155386dbdvboxsyncstruct RTSEMMUTEXINTERNAL
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Magic value (RTSEMMUTEX_MAGIC). */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uint32_t u32Magic;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Recursion count. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uint32_t volatile cRecursions;
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync /** The owner thread. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync RTNATIVETHREAD volatile hNativeOwner;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** The mutex handle. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync HANDLE hMtx;
9496f2d398b49813176939d7a339ae513d5175efvboxsync#ifdef RTSEMMUTEX_STRICT
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Lock validator record associated with this mutex. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync RTLOCKVALRECEXCL ValidatorRec;
9496f2d398b49813176939d7a339ae513d5175efvboxsync#endif
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync};
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#undef RTSemMutexCreate
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsyncRTDECL(int) RTSemMutexCreate(PRTSEMMUTEX phMutexSem)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync{
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync return RTSemMutexCreateEx(phMutexSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, RTLOCKVAL_SUB_CLASS_NONE, NULL);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync}
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsyncRTDECL(int) RTSemMutexCreateEx(PRTSEMMUTEX phMutexSem, uint32_t fFlags,
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync RTLOCKVALCLASS hClass, uint32_t uSubClass, const char *pszNameFmt, ...)
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync{
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync AssertReturn(!(fFlags & ~RTSEMMUTEX_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /*
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Create the semaphore.
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync */
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync int rc;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync HANDLE hMtx = CreateMutex(NULL, FALSE, NULL);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync if (hMtx)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync {
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync RTSEMMUTEXINTERNAL *pThis = (RTSEMMUTEXINTERNAL *)RTMemAlloc(sizeof(*pThis));
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync if (pThis)
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync {
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync pThis->u32Magic = RTSEMMUTEX_MAGIC;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync pThis->hMtx = hMtx;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync pThis->hNativeOwner = NIL_RTNATIVETHREAD;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync pThis->cRecursions = 0;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync#ifdef RTSEMMUTEX_STRICT
7766bf675357fd940d8c49e69a5d72dc6eaa6be4vboxsync va_list va;
7766bf675357fd940d8c49e69a5d72dc6eaa6be4vboxsync va_start(va, pszNameFmt);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync RTLockValidatorRecExclInitV(&pThis->ValidatorRec, hClass, uSubClass, pThis,
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync !(fFlags & RTSEMMUTEX_FLAGS_NO_LOCK_VAL), pszNameFmt, va);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync va_end(va);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync#endif
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *phMutexSem = pThis;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return VINF_SUCCESS;
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync }
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync rc = VERR_NO_MEMORY;
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync }
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync else
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync rc = RTErrConvertFromWin32(GetLastError());
ee4d840f54fd2dcea8a73b1b86d5ec0db370b05dvboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsyncRTDECL(int) RTSemMutexDestroy(RTSEMMUTEX MutexSem)
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync * Validate.
cab115cfa31c584def7069312a1e23c3fc88533bvboxsync */
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync RTSEMMUTEXINTERNAL *pThis = MutexSem;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (pThis == NIL_RTSEMMUTEX)
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync return VINF_SUCCESS;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
21029597fc4b76d0db0c9542daee201447281781vboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync /*
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Close semaphore handle.
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync */
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, RTSEMMUTEX_MAGIC_DEAD, RTSEMMUTEX_MAGIC), VERR_INVALID_HANDLE);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync HANDLE hMtx = pThis->hMtx;
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync ASMAtomicWritePtr((void * volatile *)&pThis->hMtx, (void *)INVALID_HANDLE_VALUE);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync
c0a370e600bb60153a269fb32b5f709347c35768vboxsync int rc = VINF_SUCCESS;
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync if (!CloseHandle(hMtx))
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync {
9496f2d398b49813176939d7a339ae513d5175efvboxsync rc = RTErrConvertFromWin32(GetLastError());
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsgFailed(("%p rc=%d lasterr=%d\n", pThis->hMtx, rc, GetLastError()));
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#ifdef RTSEMMUTEX_STRICT
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync RTLockValidatorRecExclDelete(&pThis->ValidatorRec);
61d064a54f03596920c3918f58ecc7764074a5d8vboxsync#endif
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync RTMemFree(pThis);
16a9adc14900ca18e6909679a579f6833425e030vboxsync return rc;
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync}
16a9adc14900ca18e6909679a579f6833425e030vboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync
16a9adc14900ca18e6909679a579f6833425e030vboxsyncRTDECL(uint32_t) RTSemMutexSetSubClass(RTSEMMUTEX hMutexSem, uint32_t uSubClass)
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync{
16a9adc14900ca18e6909679a579f6833425e030vboxsync#ifdef RTSEMMUTEX_STRICT
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync /*
16a9adc14900ca18e6909679a579f6833425e030vboxsync * Validate.
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync */
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync RTSEMMUTEXINTERNAL *pThis = hMutexSem;
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync AssertPtrReturn(pThis, RTLOCKVAL_SUB_CLASS_INVALID);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, RTLOCKVAL_SUB_CLASS_INVALID);
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync return RTLockValidatorRecExclSetSubClass(&pThis->ValidatorRec, uSubClass);
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync#else
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync return RTLOCKVAL_SUB_CLASS_INVALID;
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync#endif
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync}
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync/**
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync * Internal worker for RTSemMutexRequestNoResume and it's debug companion.
63c12491acc2b8b95c8ac454f1c48b98eec8f7d8vboxsync *
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync * @returns Same as RTSEmMutexRequestNoResume
b5ad839a3757b305d4e98d7264da2b53c9cd27f0vboxsync * @param MutexSem The mutex handle.
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync * @param cMillies The number of milliseconds to wait.
61b5982fad4660d0fe3dd6ceba9eda85eb32f7e8vboxsync * @param pSrcPos The source position of the caller.
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync */
681fd85cc7cd49e9cf66a917d6ae9ff36eb7d9e9vboxsyncDECL_FORCE_INLINE(int) rtSemMutexRequestNoResume(RTSEMMUTEX MutexSem, unsigned cMillies, PCRTLOCKVALSRCPOS pSrcPos)
681fd85cc7cd49e9cf66a917d6ae9ff36eb7d9e9vboxsync{
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync /*
681fd85cc7cd49e9cf66a917d6ae9ff36eb7d9e9vboxsync * Validate.
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync */
009d45aa55691312278d41edb20154dc208d9cd8vboxsync RTSEMMUTEXINTERNAL *pThis = MutexSem;
009d45aa55691312278d41edb20154dc208d9cd8vboxsync AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
e4f367251aede667a6de69baa54ef9eb5f150871vboxsync AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Check for recursive entry.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTNATIVETHREAD hNativeSelf = RTThreadNativeSelf();
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync RTNATIVETHREAD hNativeOwner;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ASMAtomicReadHandle(&pThis->hNativeOwner, &hNativeOwner);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (hNativeOwner == hNativeSelf)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#ifdef RTSEMMUTEX_STRICT
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync int rc9 = RTLockValidatorRecExclRecursion(&pThis->ValidatorRec, pSrcPos);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (RT_FAILURE(rc9))
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync return rc9;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#endif
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync ASMAtomicIncU32(&pThis->cRecursions);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync return VINF_SUCCESS;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /*
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Lock mutex semaphore.
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync RTTHREAD hThreadSelf = NIL_RTTHREAD;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (cMillies > 0)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#ifdef RTSEMMUTEX_STRICT
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync hThreadSelf = RTThreadSelfAutoAdopt();
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync int rc9 = RTLockValidatorRecExclCheckOrderAndBlocking(&pThis->ValidatorRec, hThreadSelf, pSrcPos, true,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync cMillies, RTTHREADSTATE_MUTEX, true);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (RT_FAILURE(rc9))
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync return rc9;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#else
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync hThreadSelf = RTThreadSelf();
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync RTThreadBlocking(hThreadSelf, RTTHREADSTATE_MUTEX, true);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync#endif
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync DWORD rc = WaitForSingleObjectEx(pThis->hMtx,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync cMillies == RT_INDEFINITE_WAIT ? INFINITE : cMillies,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync TRUE /*fAlertable*/);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_MUTEX);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync switch (rc)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync {
16a9adc14900ca18e6909679a579f6833425e030vboxsync case WAIT_OBJECT_0:
16a9adc14900ca18e6909679a579f6833425e030vboxsync#ifdef RTSEMMUTEX_STRICT
16a9adc14900ca18e6909679a579f6833425e030vboxsync RTLockValidatorRecExclSetOwner(&pThis->ValidatorRec, hThreadSelf, pSrcPos, true);
16a9adc14900ca18e6909679a579f6833425e030vboxsync#endif
16a9adc14900ca18e6909679a579f6833425e030vboxsync ASMAtomicWriteHandle(&pThis->hNativeOwner, hNativeSelf);
16a9adc14900ca18e6909679a579f6833425e030vboxsync ASMAtomicWriteU32(&pThis->cRecursions, 1);
16a9adc14900ca18e6909679a579f6833425e030vboxsync return VINF_SUCCESS;
16a9adc14900ca18e6909679a579f6833425e030vboxsync
16a9adc14900ca18e6909679a579f6833425e030vboxsync case WAIT_TIMEOUT: return VERR_TIMEOUT;
16a9adc14900ca18e6909679a579f6833425e030vboxsync case WAIT_IO_COMPLETION: return VERR_INTERRUPTED;
16a9adc14900ca18e6909679a579f6833425e030vboxsync case WAIT_ABANDONED: return VERR_SEM_OWNER_DIED;
16a9adc14900ca18e6909679a579f6833425e030vboxsync default:
16a9adc14900ca18e6909679a579f6833425e030vboxsync AssertMsgFailed(("%u\n", rc));
16a9adc14900ca18e6909679a579f6833425e030vboxsync case WAIT_FAILED:
16a9adc14900ca18e6909679a579f6833425e030vboxsync {
16a9adc14900ca18e6909679a579f6833425e030vboxsync int rc2 = RTErrConvertFromWin32(GetLastError());
16a9adc14900ca18e6909679a579f6833425e030vboxsync AssertMsgFailed(("Wait on MutexSem %p failed, rc=%d lasterr=%d\n", MutexSem, rc, GetLastError()));
16a9adc14900ca18e6909679a579f6833425e030vboxsync if (rc2 != VINF_SUCCESS)
16a9adc14900ca18e6909679a579f6833425e030vboxsync return rc2;
16a9adc14900ca18e6909679a579f6833425e030vboxsync
16a9adc14900ca18e6909679a579f6833425e030vboxsync AssertMsgFailed(("WaitForSingleObject(event) -> rc=%d while converted lasterr=%d\n", rc, rc2));
16a9adc14900ca18e6909679a579f6833425e030vboxsync return VERR_INTERNAL_ERROR;
16a9adc14900ca18e6909679a579f6833425e030vboxsync }
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync }
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync}
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync#undef RTSemMutexRequestNoResume
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncRTDECL(int) RTSemMutexRequestNoResume(RTSEMMUTEX MutexSem, unsigned cMillies)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync{
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync#ifndef RTSEMMUTEX_STRICT
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync return rtSemMutexRequestNoResume(MutexSem, cMillies, NULL);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync#else
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API();
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync return rtSemMutexRequestNoResume(MutexSem, cMillies, &SrcPos);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync#endif
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync}
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncRTDECL(int) RTSemMutexRequestNoResumeDebug(RTSEMMUTEX MutexSem, unsigned cMillies, RTHCUINTPTR uId, RT_SRC_POS_DECL)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync{
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API();
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync return rtSemMutexRequestNoResume(MutexSem, cMillies, &SrcPos);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync}
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsyncRTDECL(int) RTSemMutexRelease(RTSEMMUTEX MutexSem)
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync{
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync /*
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Validate.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync */
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTSEMMUTEXINTERNAL *pThis = MutexSem;
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync /*
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync * Check ownership and recursions.
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync */
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTNATIVETHREAD hNativeSelf = RTThreadNativeSelf();
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync RTNATIVETHREAD hNativeOwner;
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync ASMAtomicReadHandle(&pThis->hNativeOwner, &hNativeOwner);
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync if (RT_UNLIKELY(hNativeOwner != hNativeSelf))
a9d49c8f2b28a72e6a4db86eee91e4569290157bvboxsync {
a9d49c8f2b28a72e6a4db86eee91e4569290157bvboxsync AssertMsgFailed(("Not owner of mutex %p!! hNativeSelf=%RTntrd Owner=%RTntrd cRecursions=%d\n",
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync pThis, hNativeSelf, hNativeOwner, pThis->cRecursions));
a9d49c8f2b28a72e6a4db86eee91e4569290157bvboxsync return VERR_NOT_OWNER;
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync }
1bf495e3eec00dd79cecb6b36ef2a97f422c3737vboxsync if (pThis->cRecursions > 1)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
9496f2d398b49813176939d7a339ae513d5175efvboxsync#ifdef RTSEMMUTEX_STRICT
9496f2d398b49813176939d7a339ae513d5175efvboxsync int rc9 = RTLockValidatorRecExclUnwind(&pThis->ValidatorRec);
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (RT_FAILURE(rc9))
59d7f5939d42ad9d344fbad8401e00a900db92c5vboxsync return rc9;
59d7f5939d42ad9d344fbad8401e00a900db92c5vboxsync#endif
22ec733a5e041fcdfe02fce2eafc9faf8b0077ddvboxsync ASMAtomicDecU32(&pThis->cRecursions);
9496f2d398b49813176939d7a339ae513d5175efvboxsync return VINF_SUCCESS;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync }
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /*
aa834e89e076db44fa8fe82d177748f0a45d14c2vboxsync * Unlock mutex semaphore.
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync */
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync#ifdef RTSEMMUTEX_STRICT
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync int rc9 = RTLockValidatorRecExclReleaseOwner(&pThis->ValidatorRec, false);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync if (RT_FAILURE(rc9))
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync return rc9;
7766bf675357fd940d8c49e69a5d72dc6eaa6be4vboxsync#endif
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync ASMAtomicWriteU32(&pThis->cRecursions, 0);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync ASMAtomicWriteHandle(&pThis->hNativeOwner, NIL_RTNATIVETHREAD);
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync if (ReleaseMutex(pThis->hMtx))
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync return VINF_SUCCESS;
d5ea45cc92d7f1d3ade8189944531f665bfe8ed5vboxsync
5d0d754550d06b7d59a935e59caaf814462d53ccvboxsync int rc = RTErrConvertFromWin32(GetLastError());
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync AssertMsgFailed(("%p/%p, rc=%Rrc lasterr=%d\n", pThis, pThis->hMtx, rc, GetLastError()));
cc15c3fa4bb2d3fb91e4d0cd15a73133963f86b0vboxsync return rc;
d5ea45cc92d7f1d3ade8189944531f665bfe8ed5vboxsync}
f687f34bd232be13744edbc0cc5155fa5d4540edvboxsync
d5ea45cc92d7f1d3ade8189944531f665bfe8ed5vboxsync
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsyncRTDECL(bool) RTSemMutexIsOwned(RTSEMMUTEX hMutex)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync /*
bbede9c189def47a9880f0ffb03c0c230c774185vboxsync * Validate.
1189c7dde5d7f6c26f338ced3d40fc830b822e68vboxsync */
468c2bcb36eb9a032f5dd0fcb34db10bd58e9996vboxsync RTSEMMUTEXINTERNAL *pThis = hMutex;
bbede9c189def47a9880f0ffb03c0c230c774185vboxsync AssertPtrReturn(pThis, false);
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, false);
16a9adc14900ca18e6909679a579f6833425e030vboxsync
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync RTNATIVETHREAD hNativeOwner;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync ASMAtomicReadHandle(&pThis->hNativeOwner, &hNativeOwner);
9496f2d398b49813176939d7a339ae513d5175efvboxsync return hNativeOwner != NIL_RTNATIVETHREAD;
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync}
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync
5341459ca931b65de60b5af2a4cba6836b6b45cavboxsync