version 1.12, 2002/03/18 11:34:28
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version 1.91, 2006/08/09 21:12:42
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//%///////////////////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM, |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
// Compaq Computer Corporation |
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation, The Open Group. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec Corporation; The Open Group. |
// | // |
// Permission is hereby granted, free of charge, to any person obtaining a copy | // Permission is hereby granted, free of charge, to any person obtaining a copy |
// of this software and associated documentation files (the "Software"), to | // of this software and associated documentation files (the "Software"), to |
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// | // |
// Modified By: Rudy Schuet (rudy.schuet@compaq.com) 11/12/01 | // Modified By: Rudy Schuet (rudy.schuet@compaq.com) 11/12/01 |
// added nsk platform support | // added nsk platform support |
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// Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com) |
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// Amit K Arora, IBM (amita@in.ibm.com) for PEP#101 |
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// Sean Keenan, Hewlett-Packard Company (sean.keenan@hp.com) |
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// David Dillard, VERITAS Software Corp. |
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// (david.dillard@veritas.com) |
// | // |
//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#include "Thread.h" | #include "Thread.h" |
#include <Pegasus/Common/IPC.h> |
#include <exception> |
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#include <Pegasus/Common/Tracer.h> |
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#include "Time.h" |
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#if defined(PEGASUS_OS_TYPE_WINDOWS) |
PEGASUS_USING_STD; |
# include "ThreadWindows.cpp" |
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#elif defined(PEGASUS_OS_TYPE_UNIX) |
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# include "ThreadUnix.cpp" |
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#elif defined(PEGASUS_OS_TYPE_NSK) |
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# include "ThreadNsk.cpp" |
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#else |
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# error "Unsupported platform" |
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#endif |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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void thread_data::default_delete(void * data) |
//============================================================================== |
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// |
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// POSIX Threads Implementation: |
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// |
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//============================================================================== |
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#if defined(PEGASUS_HAVE_PTHREADS) |
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struct StartWrapperArg |
{ | { |
if( data != NULL) |
void *(PEGASUS_THREAD_CDECL * start) (void *); |
::operator delete(data); |
void *arg; |
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}; |
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extern "C" void *_start_wrapper(void *arg_) |
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{ |
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StartWrapperArg *arg = (StartWrapperArg *) arg_; |
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void *return_value = (*arg->start) (arg->arg); |
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delete arg; |
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return return_value; |
} | } |
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Boolean Thread::_signals_blocked = false; |
void Thread::cancel() |
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{ |
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_cancelled = true; |
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pthread_cancel(_handle.thid.tt_handle()); |
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} |
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// for non-native implementations |
void Thread::test_cancel() |
#ifndef PEGASUS_THREAD_CLEANUP_NATIVE |
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void Thread::cleanup_push( void (*routine)(void *), void *parm) throw(IPCException) |
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{ | { |
cleanup_handler *cu = new cleanup_handler(routine, parm); |
#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
try |
pthread_testintr(); |
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#else |
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pthread_testcancel(); |
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#endif |
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} |
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Boolean Thread::is_cancelled(void) |
{ | { |
_cleanup.insert_first(cu); |
return _cancelled; |
} | } |
catch(IPCException&) |
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void Thread::thread_switch() |
{ | { |
delete cu; |
#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
throw; |
pthread_yield(NULL); |
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#else |
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sched_yield(); |
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#endif |
} | } |
return; |
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/* |
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ATTN: why are these missing on other platforms? |
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*/ |
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#if defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) |
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void Thread::suspend() |
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{ |
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pthread_kill(_handle.thid.tt_handle(), SIGSTOP); |
} | } |
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void Thread::cleanup_pop(Boolean execute) throw(IPCException) |
void Thread::resume() |
{ | { |
cleanup_handler *cu ; |
pthread_kill(_handle.thid.tt_handle(), SIGCONT); |
try |
} |
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#endif |
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void Thread::sleep(Uint32 msec) |
{ | { |
cu = _cleanup.remove_first() ; |
Threads::sleep(msec); |
} | } |
catch(IPCException&) |
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void Thread::join(void) |
{ | { |
PEGASUS_ASSERT(0); |
if (!_is_detached && Threads::id(_handle.thid) != 0) |
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pthread_join(_handle.thid.tt_handle(), &_exit_code); |
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Threads::clear(_handle.thid); |
} | } |
if(execute == true) |
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cu->execute(); |
void Thread::thread_init(void) |
delete cu; |
{ |
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#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
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pthread_setintr(PTHREAD_INTR_ENABLE); |
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pthread_setintrtype(PTHREAD_INTR_ASYNCHRONOUS); |
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#else |
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pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
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pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL); |
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#endif |
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_cancel_enabled = true; |
} | } |
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void Thread::detach(void) |
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{ |
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_is_detached = true; |
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#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
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pthread_t thread_id=_handle.thid.tt_handle(); |
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pthread_detach(&thread_id); |
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#else |
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pthread_detach(_handle.thid.tt_handle()); |
#endif | #endif |
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} |
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ThreadStatus Thread::run() |
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{ |
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StartWrapperArg *arg = new StartWrapperArg; |
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arg->start = _start; |
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arg->arg = this; |
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//thread_data *Thread::put_tsd(const Sint8 *key, void (*delete_func)(void *), Uint32 size, void *value) throw(IPCException) |
Threads::Type type = _is_detached ? Threads::DETACHED : Threads::JOINABLE; |
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int rc = Threads::create(_handle.thid, type, _start_wrapper, arg); |
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// On Linux distributions released prior 2005, the implementation of |
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// Native POSIX Thread Library returns ENOMEM instead of EAGAIN when |
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// there |
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// are no insufficient memory. Hence we are checking for both. See bug |
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// 386. |
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#ifndef PEGASUS_THREAD_EXIT_NATIVE |
if ((rc == EAGAIN) || (rc == ENOMEM)) |
void Thread::exit_self(PEGASUS_THREAD_RETURN exit_code) |
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{ |
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// execute the cleanup stack and then return |
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while( _cleanup.count() ) |
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{ |
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try |
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{ | { |
cleanup_pop(true); |
Threads::clear(_handle.thid); |
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delete arg; |
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return PEGASUS_THREAD_INSUFFICIENT_RESOURCES; |
} | } |
catch(IPCException&) |
else if (rc != 0) |
{ | { |
PEGASUS_ASSERT(0); |
Threads::clear(_handle.thid); |
break; |
delete arg; |
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return PEGASUS_THREAD_SETUP_FAILURE; |
} | } |
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return PEGASUS_THREAD_OK; |
} | } |
_exit_code = exit_code; |
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exit_thread(exit_code); |
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_handle.thid = 0; |
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} |
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static sigset_t *block_signal_mask(sigset_t * sig) |
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{ |
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sigemptyset(sig); |
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// should not be used for main() |
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sigaddset(sig, SIGHUP); |
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sigaddset(sig, SIGINT); |
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// maybe useless, since KILL can't be blocked according to POSIX |
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sigaddset(sig, SIGKILL); |
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sigaddset(sig, SIGABRT); |
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sigaddset(sig, SIGALRM); |
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sigaddset(sig, SIGPIPE); |
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// Note: older versions of the linux pthreads library use SIGUSR1 and SIGUSR2 |
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// internally to stop and start threads that are blocking, the newer ones |
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// implement this through the kernel's real time signals |
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// since SIGSTOP/CONT can handle suspend()/resume() on Linux |
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// block them |
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// #if defined(PEGASUS_PLATFORM_LINUX_IX86_GNU) |
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// sigaddset(sig, SIGUSR1); |
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// sigaddset(sig, SIGUSR2); |
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// #endif |
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#ifndef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM |
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pthread_sigmask(SIG_BLOCK, sig, NULL); |
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#else |
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sigprocmask(SIG_BLOCK, sig, NULL); |
#endif | #endif |
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return sig; |
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} |
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ThreadPool::ThreadPool(Sint16 initial_size, |
Thread::Thread(ThreadReturnType(PEGASUS_THREAD_CDECL * start) (void *), void *parameter, Boolean detached):_is_detached(detached), |
const Sint8 *key, |
_cancel_enabled(true), |
Sint16 min, |
_cancelled(false), |
Sint16 max, |
_start(start), _cleanup(), _tsd(), _thread_parm(parameter), _exit_code(0) |
struct timeval & alloc_wait, |
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struct timeval & dealloc_wait, |
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struct timeval & deadlock_detect) |
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: _max_threads(max), _min_threads(min), |
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_current_threads(0), |
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_pool(true), _running(true), |
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_dead(true), _dying(0) |
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{ | { |
_allocate_wait.tv_sec = alloc_wait.tv_sec; |
Threads::clear(_handle.thid); |
_allocate_wait.tv_usec = alloc_wait.tv_usec; |
} |
_deallocate_wait.tv_sec = dealloc_wait.tv_sec; |
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_deallocate_wait.tv_usec = dealloc_wait.tv_usec; |
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_deadlock_detect.tv_sec = deadlock_detect.tv_sec; |
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_deadlock_detect.tv_usec = deadlock_detect.tv_usec; |
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memset(_key, 0x00, 17); |
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if(key != 0) |
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strncpy(_key, key, 16); |
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if(_max_threads < initial_size) |
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_max_threads = initial_size; |
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if(_min_threads > initial_size) |
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_min_threads = initial_size; |
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int i; |
Thread::~Thread() |
for(i = 0; i < initial_size; i++) |
{ |
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try |
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{ |
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join(); |
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empty_tsd(); |
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} |
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catch(...) |
{ | { |
_link_pool(_init_thread()); |
// Do not allow the destructor to throw an exception |
} | } |
} | } |
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#endif /* PEGASUS_HAVE_PTHREADS */ |
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//============================================================================== |
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// |
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// Windows Threads Implementation: |
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// |
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//============================================================================== |
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ThreadPool::~ThreadPool(void) |
#if defined(PEGASUS_HAVE_WINDOWS_THREADS) |
{ |
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_dying++; |
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Thread *th = 0; |
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while(th != 0) |
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{ |
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Semaphore *sleep_sem = (Semaphore *)th->reference_tsd("sleep sem"); |
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if(sleep_sem == 0) |
ThreadStatus Thread::run(void) |
{ | { |
th->dereference_tsd(); |
// Note: A Win32 thread ID is not the same thing as a pthread ID. |
throw NullPointer(); |
// Win32 threads have both a thread ID and a handle. The handle |
} |
// is used in the wait functions, etc. |
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// So _handle.thid is actually the thread handle. |
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sleep_sem->signal(); |
unsigned threadid = 0; |
sleep_sem->signal(); |
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th->dereference_tsd(); |
ThreadType tt; |
// signal the thread's sleep semaphore |
tt.handle = (HANDLE) _beginthreadex(NULL, 0, _start, this, 0, &threadid); |
th->cancel(); |
_handle.thid = tt; |
th->join(); |
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th->empty_tsd(); |
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delete th; |
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th = _pool.remove_first(); |
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} |
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th = _running.remove_first(); |
if (Threads::id(_handle.thid) == 0) |
while(th != 0) |
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{ | { |
// signal the thread's sleep semaphore |
if (errno == EAGAIN) |
th->cancel(); |
{ |
th->join(); |
return PEGASUS_THREAD_INSUFFICIENT_RESOURCES; |
th->empty_tsd(); |
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delete th; |
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th = _running.remove_first(); |
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} | } |
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else |
th = _dead.remove_first(); |
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while(th != 0) |
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{ | { |
// signal the thread's sleep semaphore |
return PEGASUS_THREAD_SETUP_FAILURE; |
th->cancel(); |
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th->join(); |
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th->empty_tsd(); |
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delete th; |
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th = _dead.remove_first(); |
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} | } |
} | } |
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return PEGASUS_THREAD_OK; |
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} |
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// make this static to the class |
void Thread::cancel(void) |
PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL ThreadPool::_loop(void *parm) |
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{ | { |
Thread *myself = (Thread *)parm; |
_cancelled = true; |
if(myself == 0) |
} |
throw NullPointer(); |
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ThreadPool *pool = (ThreadPool *)myself->get_parm(); |
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if(pool == 0 ) |
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throw NullPointer(); |
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Semaphore *sleep_sem = 0; |
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struct timeval *deadlock_timer = 0; |
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try |
void Thread::test_cancel(void) |
{ | { |
sleep_sem = (Semaphore *)myself->reference_tsd("sleep sem"); |
if (_cancel_enabled && _cancelled) |
myself->dereference_tsd(); |
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deadlock_timer = (struct timeval *)myself->reference_tsd("deadlock timer"); |
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myself->dereference_tsd(); |
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} |
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catch(IPCException &) |
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{ | { |
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exit_self(0); |
myself->exit_self(0); |
} |
} | } |
if(sleep_sem == 0 || deadlock_timer == 0) |
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throw NullPointer(); |
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while(pool->_dying < 1) |
Boolean Thread::is_cancelled(void) |
{ | { |
sleep_sem->wait(); |
return _cancelled; |
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} |
// when we awaken we reside on the running queue, not the pool queue |
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if(pool->_dying > 0) |
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break; |
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PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *_work)(void *) = 0; |
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void *parm = 0; |
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try |
void Thread::thread_switch(void) |
{ | { |
_work = (PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *)(void *)) \ |
Sleep(0); |
myself->reference_tsd("work func"); |
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myself->dereference_tsd(); |
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parm = myself->reference_tsd("work parm"); |
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myself->dereference_tsd(); |
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} | } |
catch(IPCException &) |
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{ |
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myself->exit_self(0); |
void Thread::sleep(Uint32 milliseconds) |
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{ |
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Sleep(milliseconds); |
} | } |
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if(_work == 0) |
void Thread::join(void) |
throw NullPointer(); |
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gettimeofday(deadlock_timer, NULL); |
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_work(parm); |
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// put myself back onto the available list |
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try |
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{ | { |
pool->_running.remove((void *)myself); |
if (Threads::id(_handle.thid) != 0) |
pool->_link_pool(myself); |
{ |
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if (!_is_detached) |
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{ |
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if (!_cancelled) |
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{ |
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// Emulate the unix join api. Caller sleeps until thread is |
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// done. |
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WaitForSingleObject(_handle.thid.handle, INFINITE); |
} | } |
catch(IPCException &) |
else |
{ | { |
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// Currently this is the only way to ensure this code does |
myself->exit_self(0); |
// not |
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// hang forever. |
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if (WaitForSingleObject(_handle.thid.handle, 10000) == |
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WAIT_TIMEOUT) |
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{ |
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TerminateThread(_handle.thid.handle, 0); |
} | } |
} | } |
// wait to be awakend by the thread pool destructor |
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sleep_sem->wait(); |
DWORD exit_code = 0; |
myself->test_cancel(); |
GetExitCodeThread(_handle.thid.handle, &exit_code); |
myself->exit_self(0); |
_exit_code = (ThreadReturnType) exit_code; |
return((PEGASUS_THREAD_RETURN)0); |
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} | } |
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CloseHandle(_handle.thid.handle); |
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Threads::clear(_handle.thid); |
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} |
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} |
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void ThreadPool::allocate_and_awaken(void *parm, |
void Thread::thread_init(void) |
PEGASUS_THREAD_RETURN \ |
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(PEGASUS_THREAD_CDECL *work)(void *)) |
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throw(IPCException) |
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{ | { |
struct timeval start; |
_cancel_enabled = true; |
gettimeofday(&start, NULL); |
} |
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Thread *th = _pool.remove_first(); |
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// wait for the right interval and try again |
void Thread::detach(void) |
while(th == 0 && _dying < 1) |
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{ | { |
_check_deadlock(&start) ; |
_is_detached = true; |
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} |
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if(_current_threads < _max_threads) |
Thread::Thread(ThreadReturnType(PEGASUS_THREAD_CDECL * start) (void *), |
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void *parameter, |
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Boolean detached):_is_detached(detached), |
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_cancel_enabled(true), |
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_cancelled(false), |
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_start(start), _cleanup(), _tsd(), _thread_parm(parameter), _exit_code(0) |
{ | { |
th = _init_thread(); |
Threads::clear(_handle.thid); |
continue; |
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} |
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pegasus_yield(); |
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th = _pool.remove_first(); |
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} | } |
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Thread::~Thread() |
if(_dying < 1) |
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{ | { |
// initialize the thread data with the work function and parameters |
try |
th->remove_tsd("work func"); |
{ |
th->put_tsd("work func", NULL, |
join(); |
sizeof( PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *)(void *)), |
empty_tsd(); |
(void *)work); |
} |
th->remove_tsd("work parm"); |
catch(...) |
th->put_tsd("work parm", NULL, sizeof(void *), parm); |
{ |
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} |
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} |
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// put the thread on the running list |
#endif /* PEGASUS_HAVE_WINDOWS_THREADS */ |
_running.insert_first(th); |
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// signal the thread's sleep semaphore to awaken it |
//============================================================================== |
Semaphore *sleep_sem = (Semaphore *)th->reference_tsd("sleep sem"); |
// |
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// Common implementation: |
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// |
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//============================================================================== |
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if(sleep_sem == 0) |
void thread_data::default_delete(void *data) |
{ | { |
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if (data != NULL) |
th->dereference_tsd(); |
::operator delete(data); |
throw NullPointer(); |
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} | } |
sleep_sem->signal(); |
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th->dereference_tsd(); |
void language_delete(void *data) |
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{ |
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if (data != NULL) |
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{ |
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AutoPtr < AcceptLanguageList > al(static_cast < |
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AcceptLanguageList * >(data)); |
} | } |
else |
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_pool.insert_first(th); |
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} | } |
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// caller is responsible for only calling this routine during slack periods |
Boolean Thread::_signals_blocked = false; |
// but should call it at least once per _deadlock_detect with the running q |
#ifndef PEGASUS_OS_ZOS |
// and at least once per _deallocate_wait for the pool q |
TSDKeyType Thread::_platform_thread_key = TSDKeyType(-1); |
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#else |
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TSDKeyType Thread::_platform_thread_key; |
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#endif |
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Boolean Thread::_key_initialized = false; |
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Boolean Thread::_key_error = false; |
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Uint32 ThreadPool::kill_dead_threads(void) |
void Thread::cleanup_push(void (*routine) (void *), void *parm) |
throw(IPCException) |
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{ | { |
struct timeval now; |
AutoPtr < cleanup_handler > cu(new cleanup_handler(routine, parm)); |
gettimeofday(&now, NULL); |
_cleanup.insert_front(cu.get()); |
Uint32 bodies = 0; |
cu.release(); |
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return; |
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} |
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// first go thread the dead q and clean it up as much as possible |
void Thread::cleanup_pop(Boolean execute) |
while(_dead.count() > 0) |
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{ |
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Thread *dead = _dead.remove_first(); |
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if(dead == 0) |
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throw NullPointer(); |
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if(dead->_handle.thid != 0) |
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{ | { |
dead->detach(); |
AutoPtr < cleanup_handler > cu; |
destroy_thread(dead->_handle.thid, 0); |
try |
dead->_handle.thid = 0; |
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while(dead->_cleanup.count() ) |
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{ | { |
// this may throw a permission exception, |
cu.reset(_cleanup.remove_front()); |
// which I will remove from the code prior to stabilizing |
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dead->cleanup_pop(true); |
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} | } |
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catch(IPCException &) |
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{ |
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PEGASUS_ASSERT(0); |
} | } |
delete dead; |
if (execute == true) |
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cu->execute(); |
} | } |
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DQueue<Thread> * map[2] = |
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{ |
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&_pool, &_running |
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}; |
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//thread_data *Thread::put_tsd(const Sint8 *key, void (*delete_func)(void *), Uint32 size, void *value) |
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DQueue<Thread> *q = 0; |
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int i = 0; |
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AtomicInt needed(0); |
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for( q = map[i] ; i < 2; i++, q = map[i]) |
void Thread::exit_self(ThreadReturnType exit_code) |
{ | { |
if(q->count() > 0 ) |
#if defined(PEGASUS_PLATFORM_HPUX_ACC) || \ |
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defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) |
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// NOTE: pthread_exit exhibits unusual behavior on RHEL 3 U2, as |
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// documented in Bugzilla 3836. Where feasible, it may be advantageous |
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// to avoid using this function. |
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pthread_exit(exit_code); |
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#else |
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// execute the cleanup stack and then return |
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while (_cleanup.size()) |
{ | { |
try | try |
{ | { |
q->try_lock(); |
cleanup_pop(true); |
} | } |
catch(AlreadyLocked &) |
catch(IPCException &) |
{ | { |
q++; |
PEGASUS_ASSERT(0); |
continue; |
break; |
} | } |
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struct timeval dt = { 0, 0 }; |
|
struct timeval *dtp; |
|
Thread *th = 0; |
|
th = q->next(th); |
|
while (th != 0 ) |
|
{ |
|
try |
|
{ |
|
dtp = (struct timeval *)th->try_reference_tsd("deadlock timer"); |
|
} | } |
catch(AlreadyLocked &) |
_exit_code = exit_code; |
{ |
Threads::exit(exit_code); |
th = q->next(th); |
Threads::clear(_handle.thid); |
continue; |
#endif |
} | } |
| |
if(dtp != 0) |
Sint8 Thread::initializeKey() |
{ | { |
memcpy(&dt, dtp, sizeof(struct timeval)); |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::initializeKey"); |
|
if (!Thread::_key_initialized) |
} |
|
th->dereference_tsd(); |
|
struct timeval deadlock_timeout; |
|
if( true == check_time(&dt, get_deadlock_detect(&deadlock_timeout) )) |
|
{ | { |
// if we are deallocating from the pool, escape if we are |
if (Thread::_key_error) |
// down to the minimum thread count |
|
if( _current_threads.value() <= (Uint32)_min_threads ) |
|
{ | { |
if( i == 1) |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
|
"Thread: ERROR - thread key error"); |
|
return -1; |
|
} |
|
|
|
if (TSDKey::create(&Thread::_platform_thread_key) == 0) |
{ | { |
th = q->next(th); |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
continue; |
"Thread: able to create a thread key"); |
|
Thread::_key_initialized = true; |
} | } |
else | else |
{ | { |
// we are killing a hung thread and we will drop below the |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
// minimum. create another thread to make up for the one |
"Thread: ERROR - unable to create a thread key"); |
// we are about to kill |
Thread::_key_error = true; |
needed++; |
return -1; |
} | } |
} | } |
| |
th = q->remove_no_lock((void *)th); |
PEG_METHOD_EXIT(); |
|
return 0; |
|
} |
| |
if(th != 0) |
Thread *Thread::getCurrent() |
{ | { |
th->remove_tsd("work func"); |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::getCurrent"); |
th->put_tsd("work func", NULL, |
if (Thread::initializeKey() != 0) |
sizeof( PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *)(void *)), |
|
(void *)&_undertaker); |
|
th->remove_tsd("work parm"); |
|
th->put_tsd("work parm", NULL, sizeof(void *), th); |
|
|
|
// signal the thread's sleep semaphore to awaken it |
|
Semaphore *sleep_sem = (Semaphore *)th->reference_tsd("sleep sem"); |
|
|
|
if(sleep_sem == 0) |
|
{ | { |
th->dereference_tsd(); |
return NULL; |
throw NullPointer(); |
|
} |
|
// put the thread on the dead list |
|
_dead.insert_first(th); |
|
bodies++; |
|
sleep_sem->signal(); |
|
th->dereference_tsd(); |
|
th = 0; |
|
} | } |
|
PEG_METHOD_EXIT(); |
|
return (Thread *) TSDKey::get_thread_specific(_platform_thread_key); |
} | } |
th = q->next(th); |
|
|
void Thread::setCurrent(Thread * thrd) |
|
{ |
|
PEG_METHOD_ENTER(TRC_THREAD, "Thread::setCurrent"); |
|
if (Thread::initializeKey() == 0) |
|
{ |
|
if (TSDKey:: |
|
set_thread_specific(Thread::_platform_thread_key, |
|
(void *) thrd) == 0) |
|
{ |
|
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
|
"Successful set Thread * into thread specific storage"); |
} | } |
q->unlock(); |
else |
while (needed.value() > 0) |
|
{ | { |
_link_pool(_init_thread()); |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
needed--; |
"ERROR: error setting Thread * into thread specific storage"); |
} | } |
} | } |
|
PEG_METHOD_EXIT(); |
} | } |
| |
|
AcceptLanguageList *Thread::getLanguages() |
|
{ |
|
PEG_METHOD_ENTER(TRC_THREAD, "Thread::getLanguages"); |
| |
return bodies; |
Thread *curThrd = Thread::getCurrent(); |
|
if (curThrd == NULL) |
|
return NULL; |
|
AcceptLanguageList *acceptLangs = |
|
(AcceptLanguageList *) curThrd->reference_tsd("acceptLanguages"); |
|
curThrd->dereference_tsd(); |
|
PEG_METHOD_EXIT(); |
|
return acceptLangs; |
} | } |
| |
|
void Thread::setLanguages(AcceptLanguageList * langs) // l10n |
// inline int timeval_subtract (struct timeval *result, |
|
// struct timeval *x, |
|
// struct timeval *y) |
|
// { |
|
// /* Perform the carry for the later subtraction by updating Y. */ |
|
// if (x->tv_usec < y->tv_usec) { |
|
// int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1; |
|
// y->tv_usec -= 1000000 * nsec; |
|
// y->tv_sec += nsec; |
|
// } |
|
// if (x->tv_usec - y->tv_usec > 1000000) { |
|
// int nsec = (x->tv_usec - y->tv_usec) / 1000000; |
|
// y->tv_usec += 1000000 * nsec; |
|
// y->tv_sec -= nsec; |
|
// } |
|
|
|
// /* Compute the time remaining to wait. |
|
// `tv_usec' is certainly positive. */ |
|
// result->tv_sec = x->tv_sec - y->tv_sec; |
|
// result->tv_usec = x->tv_usec - y->tv_usec; |
|
|
|
// /* Return 1 if result is negative. */ |
|
// return x->tv_sec < y->tv_sec; |
|
// } |
|
|
|
Boolean ThreadPool::check_time(struct timeval *start, struct timeval *interval) |
|
{ | { |
struct timeval now; |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::setLanguages"); |
gettimeofday(&now, NULL); |
|
start->tv_sec += interval->tv_sec; |
|
start->tv_usec += interval->tv_usec; |
|
start->tv_sec += start->tv_usec / 1000000; |
|
start->tv_usec %= 1000000; |
|
struct timeval remaining; |
|
| |
if ( timeval_subtract(&remaining, start, &now) ) |
Thread *currentThrd = Thread::getCurrent(); |
return true; |
if (currentThrd != NULL) |
else |
{ |
return false; |
// deletes the old tsd and creates a new one |
|
currentThrd->put_tsd("acceptLanguages", |
|
language_delete, |
|
sizeof (AcceptLanguageList *), langs); |
} | } |
| |
|
PEG_METHOD_EXIT(); |
|
} |
| |
PEGASUS_THREAD_RETURN ThreadPool::_undertaker( void *parm ) |
void Thread::clearLanguages() // l10n |
{ | { |
Thread *myself = reinterpret_cast<Thread *>(parm); |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::clearLanguages"); |
if(myself != 0) |
|
|
Thread *currentThrd = Thread::getCurrent(); |
|
if (currentThrd != NULL) |
{ | { |
myself->detach(); |
// deletes the old tsd |
myself->_handle.thid = 0; |
currentThrd->delete_tsd("acceptLanguages"); |
myself->cancel(); |
|
myself->test_cancel(); |
|
myself->exit_self(0); |
|
} | } |
return((PEGASUS_THREAD_RETURN)0); |
|
|
PEG_METHOD_EXIT(); |
} | } |
| |
|
// ATTN: not sure where to put this! |
|
#ifdef PEGASUS_ZOS_SECURITY |
|
bool isEnhancedSecurity = 99; |
|
#endif |
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |
|
|