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File: [Pegasus] / pegasus / src / Pegasus / Common / Condition.cpp
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Revision: 1.3, Fri Nov 10 18:14:57 2006 UTC (17 years, 7 months ago) by kumpf Branch: MAIN CVS Tags: TASK_PEP328_SOLARIS_NEVADA_PORT, TASK-PEP328_SOLARIS_NEVADA_PORT_v2-root, TASK-PEP328_SOLARIS_NEVADA_PORT_v2-branch, TASK-PEP328_SOLARIS_NEVADA_PORT-root, TASK-PEP328_SOLARIS_NEVADA_PORT-branch, TASK-PEP328_SOLARIS_IX86_CC_PORT-root, TASK-PEP328_SOLARIS_IX86_CC_PORT-branch-v2, TASK-PEP328_SOLARIS_IX86_CC_PORT-branch, TASK-PEP311_WSMan-root, TASK-PEP311_WSMan-branch, TASK-PEP305_VXWORKS-root, TASK-PEP291_IPV6-root, TASK-PEP291_IPV6-branch, TASK-PEP286_PRIVILEGE_SEPARATION-root, TASK-PEP286_PRIVILEGE_SEPARATION-branch, TASK-PEP274_dacim-root, TASK-PEP274_dacim-merged_out_to_branch, TASK-PEP274_dacim-merged_out_from_trunk, TASK-PEP274_dacim-merged_in_to_trunk, TASK-PEP274_dacim-merged_in_from_branch, TASK-PEP274_dacim-branch, TASK-Bug2102_RCMPIWindows-root, TASK-Bug2102_RCMPIWindows-merged_out_to_branch, TASK-Bug2102_RCMPIWindows-merged_out_from_trunk, TASK-Bug2102_RCMPIWindows-merged_in_to_trunk, TASK-Bug2102_RCMPIWindows-merged_in_from_branch, TASK-Bug2102_RCMPIWindows-branch, TASK-Bug2102Final-root, TASK-Bug2102Final-merged_out_to_branch, TASK-Bug2102Final-merged_out_from_trunk, TASK-Bug2102Final-merged_in_to_trunk, TASK-Bug2102Final-merged_in_from_branch, TASK-Bug2102Final-branch, TASK-BUG7240-root, TASK-BUG7240-branch, TASK-BUG7146_SqlRepositoryPrototype-root, TASK-BUG7146_SqlRepositoryPrototype-merged_out_to_branch, TASK-BUG7146_SqlRepositoryPrototype-merged_out_from_trunk, TASK-BUG7146_SqlRepositoryPrototype-merged_in_to_trunk, TASK-BUG7146_SqlRepositoryPrototype-merged_in_from_branch, TASK-BUG7146_SqlRepositoryPrototype-branch, RELEASE_2_8_2-RC1, RELEASE_2_8_2, RELEASE_2_8_1-RC1, RELEASE_2_8_1, RELEASE_2_8_0_BETA, RELEASE_2_8_0-RC2, RELEASE_2_8_0-RC1, RELEASE_2_8_0-FC, RELEASE_2_8_0, RELEASE_2_8-root, RELEASE_2_8-branch, RELEASE_2_7_3-RC1, RELEASE_2_7_3, RELEASE_2_7_2-RC1, RELEASE_2_7_2, RELEASE_2_7_1-RC1, RELEASE_2_7_1, RELEASE_2_7_0-RC1, RELEASE_2_7_0-BETA, RELEASE_2_7_0, RELEASE_2_7-root, RELEASE_2_7-branch, RELEASE_2_6_3-RC2, RELEASE_2_6_3-RC1, RELEASE_2_6_3, RELEASE_2_6_2-RC1, RELEASE_2_6_2, RELEASE_2_6_1-RC1, RELEASE_2_6_1, RELEASE_2_6_0-RC1, RELEASE_2_6_0-FC, RELEASE_2_6_0, RELEASE_2_6-root, RELEASE_2_6-branch-clean, RELEASE_2_6-branch, PEP286_PRIVILEGE_SEPARATION_ROOT, PEP286_PRIVILEGE_SEPARATION_CODE_FREEZE, PEP286_PRIVILEGE_SEPARATION_BRANCH, PEP286_PRIVILEGE_SEPARATION_1, Makefile Branch point for: TASK-PEP305_VXWORKS-branch Changes since 1.2: +2 -5 lines BUG#: 5840 TITLE: Common modules do not meet chksrc requirements DESCRIPTION: Remove tab characters and author names and shorten lines that are wider than 80 characters. |
//%2006//////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; // IBM Corp.; EMC Corporation, The Open Group. // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; // EMC Corporation; VERITAS Software Corporation; The Open Group. // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; // EMC Corporation; Symantec Corporation; The Open Group. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // //%///////////////////////////////////////////////////////////////////////////// #include "Condition.h" #include "PegasusAssert.h" PEGASUS_NAMESPACE_BEGIN //============================================================================== // // PEGASUS_HAVE_PTHREADS // //============================================================================== #if defined(PEGASUS_HAVE_PTHREADS) Condition::Condition() { pthread_cond_init(&_rep.cond, NULL); } Condition::~Condition() { pthread_cond_destroy(&_rep.cond); } void Condition::signal() { pthread_cond_signal(&_rep.cond); } void Condition::wait(Mutex& lock) { pthread_cond_wait(&_rep.cond, &lock._rep.mutex); } #endif /* PEGASUS_HAVE_PTHREADS */ //============================================================================== // // PEGASUS_HAVE_WINDOWS_THREADS // //============================================================================== #if defined(PEGASUS_HAVE_WINDOWS_THREADS) ConditionWaiter* _get_waiter() { // ATTN: since Windows Thread Local Storage does not have a cleanup // routine mechanism, the ConditionWaiter object (and its event) will // be leaked when the thread exists. static DWORD _waiter_tls = TlsAlloc(); // Obtain (or create) the waiter for this thread. ConditionWaiter* waiter = (ConditionWaiter*)TlsGetValue(_waiter_tls); if (waiter == 0) { waiter = new ConditionWaiter; waiter->event = CreateEvent(0, TRUE, FALSE, 0); PEGASUS_DEBUG_ASSERT(waiter->event != NULL); TlsSetValue(_waiter_tls, waiter); } return waiter; } Condition::Condition() { } Condition::~Condition() { // Remove all of the waiters without deleting them (they are owned by // the thread-local-storage slot defined above and should never be // deleted. while (_rep.waiters.size()) _rep.waiters.remove_front(); } void Condition::signal() { // Remove the waiter at the front of the queue. ConditionWaiter* waiter = _rep.waiters.remove_front(); if (waiter) SetEvent(waiter->event); } void Condition::wait(Mutex& mutex) { // Insert this thread's waiter at end of waiters queue. ConditionWaiter* waiter = _get_waiter(); _rep.waiters.insert_back(waiter); // Unlock the mutex. size_t count = mutex._rep.count; for (size_t i = 0; i < count; i++) mutex.unlock(); // Wait for a signal. DWORD rc = WaitForSingleObject(waiter->event, INFINITE); PEGASUS_DEBUG_ASSERT(rc == WAIT_OBJECT_0); // Relock the mutex. for (size_t i = 0; i < count; i++) mutex.lock(); // Reset the event. ResetEvent(waiter->event); } #endif /* PEGASUS_HAVE_WINDOWS_THREADS */ PEGASUS_NAMESPACE_END
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