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File: [Pegasus] / pegasus / src / Pegasus / Common / ThreadPool.h
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Revision: 1.4, Thu Nov 30 11:49:15 2006 UTC (17 years, 7 months ago) by kamal.locahana 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-PEP305_VXWORKS-root, TASK-PEP305_VXWORKS-branch-pre-solaris-port, TASK-PEP305_VXWORKS-branch-post-solaris-port, TASK-PEP305_VXWORKS-branch-beta2, TASK-PEP305_VXWORKS-branch, TASK-PEP305_VXWORKS-2008-10-23, 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, 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 Changes since 1.3: +4 -4 lines BUG#: 5902 TITLE: Compiler Warnings DESCRIPTION: Fix for type mismatch in assignment |
//%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. // //============================================================================= // //%//////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_ThreadPool_h #define Pegasus_ThreadPool_h #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Linkage.h> #include <Pegasus/Common/Thread.h> PEGASUS_NAMESPACE_BEGIN class PEGASUS_COMMON_LINKAGE ThreadPool { public: /** Constructs a new ThreadPool object. @param initialSize The number of threads that are initially added to the thread pool. @param key A name for this thread pool that can be used to determine equality of two thread pool objects. Only the first 16 characters of this value are used. @param minThreads The minimum number of threads that should be contained in this thread pool at any given time. @param maxThreads The maximum number of threads that should be contained in this thread pool at any given time. @param deallocateWait The minimum time that a thread should be idle before it is removed from the pool and cleaned up. */ ThreadPool( Sint16 initialSize, const char* key, Sint16 minThreads, Sint16 maxThreads, struct timeval& deallocateWait); /** Destructs the ThreadPool object. */ ~ThreadPool(); /** Allocate and start a thread to do a unit of work. @param parm A generic parameter to pass to the thread @param work A pointer to the function that is to be executed by the thread @param blocking A pointer to an optional semaphore which, if specified, is signaled after the thread finishes executing the work function @return PEGASUS_THREAD_OK if the thread is started successfully, PEGASUS_THREAD_INSUFFICIENT_RESOURCES if the resources necessary to start the thread are not currently available. PEGASUS_THREAD_SETUP_FAILURE if the thread could not be setup properly. PEGASUS_THREAD_UNAVAILABLE if this service is shutting down and no more threads can be allocated. @exception IPCException */ ThreadStatus allocate_and_awaken( void* parm, ThreadReturnType(PEGASUS_THREAD_CDECL* work) (void*), Semaphore* blocking = 0); /** Cleans up idle threads if they have been running longer than the deallocate_wait configuration and more than the configured minimum number of threads is running. @return The number of threads that were cleaned up. @exception IPCException */ Uint32 cleanupIdleThreads(); void get_key(Sint8* buf, int bufsize); inline void setMinThreads(Sint16 min) { _minThreads = min; } inline Sint16 getMinThreads() const { return _minThreads; } inline void setMaxThreads(Sint16 max) { _maxThreads = max; } inline Sint16 getMaxThreads() const { return _maxThreads; } inline Uint32 runningCount() { return (Uint32) _runningThreads.size(); } inline Uint32 idleCount() { return (Uint32) _idleThreads.size(); } private: ThreadPool(); // Unimplemented ThreadPool(const ThreadPool &); // Unimplemented ThreadPool & operator=(const ThreadPool &); // Unimplemented static ThreadReturnType PEGASUS_THREAD_CDECL _loop(void *); static Boolean _timeIntervalExpired( struct timeval* start, struct timeval* interval); static void _deleteSemaphore(void* p); void _cleanupThread(Thread* thread); Thread* _initializeThread(); void _addToIdleThreadsQueue(Thread* th); Sint16 _maxThreads; Sint16 _minThreads; AtomicInt _currentThreads; struct timeval _deallocateWait; char _key[17]; List<Thread, Mutex> _idleThreads; List<Thread, Mutex> _runningThreads; AtomicInt _dying; }; PEGASUS_NAMESPACE_END #endif // Pegasus_ThreadPool_h
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