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version 1.100.2.6, 2008/10/23 18:59:32
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version 1.100.4.1, 2007/11/09 18:59:30
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| extern "C" void *_start_wrapper(void *arg_) | extern "C" void *_start_wrapper(void *arg_) |
| { | { |
| // Clean up dynamic memory now to prevent a leak if the thread is canceled. |
StartWrapperArg *arg = (StartWrapperArg *) arg_; |
| StartWrapperArg arg; |
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| arg.start = ((StartWrapperArg *) arg_)->start; |
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| arg.arg = ((StartWrapperArg *) arg_)->arg; |
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| delete (StartWrapperArg *) arg_; |
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| | |
| // establish cancelability of the thread |
void *return_value = (*arg->start) (arg->arg); |
| pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
delete arg; |
| pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL); |
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| |
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| void *return_value = (*arg.start) (arg.arg); |
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| | |
| return return_value; | return return_value; |
| } | } |
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| arg->start = _start; | arg->start = _start; |
| arg->arg = this; | arg->arg = this; |
| | |
| Threads::Type type = |
Threads::Type type = _is_detached ? Threads::DETACHED : Threads::JOINABLE; |
| _is_detached ? Threads::THREADS_DETACHED : Threads::THREADS_JOINABLE; |
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| int rc = Threads::create(_handle.thid, type, _start_wrapper, arg); | int rc = Threads::create(_handle.thid, type, _start_wrapper, arg); |
| | |
| // On Linux distributions released prior 2005, the implementation of | // On Linux distributions released prior 2005, the implementation of |
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| return PEGASUS_THREAD_OK; | return PEGASUS_THREAD_OK; |
| } | } |
| | |
| 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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| |
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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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| |
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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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| #if defined (PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || defined (PEGASUS_OS_VMS) |
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| sigprocmask(SIG_BLOCK, sig, NULL); |
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| #else |
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| pthread_sigmask(SIG_BLOCK, sig, NULL); |
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| #endif |
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| return sig; |
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| } |
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| |
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| /* |
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| ATTN: remove this! |
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| */ |
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| #if 1 |
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| static Uint32 _num_threads = 0; |
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| static Mutex _num_threads_mutex; |
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| #endif |
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| |
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| Thread::Thread( | Thread::Thread( |
| ThreadReturnType(PEGASUS_THREAD_CDECL* start) (void*), | ThreadReturnType(PEGASUS_THREAD_CDECL* start) (void*), |
| void* parameter, | void* parameter, |
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| _thread_parm(parameter), | _thread_parm(parameter), |
| _exit_code(0) | _exit_code(0) |
| { | { |
| /* |
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| ATTN: remove this! |
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| */ |
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| #if 1 |
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| Uint32 num_threads; |
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| _num_threads_mutex.lock(); |
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| _num_threads++; |
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| num_threads = _num_threads; |
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| printf("Thread::Thread(): num_threads=%u\n", num_threads); |
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| _num_threads_mutex.unlock(); |
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| #endif |
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| |
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| Threads::clear(_handle.thid); | Threads::clear(_handle.thid); |
| } | } |
| | |
| Thread::~Thread() | Thread::~Thread() |
| { | { |
| /* |
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| ATTN: remove this! |
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| */ |
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| #if 1 |
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| Uint32 num_threads; |
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| _num_threads_mutex.lock(); |
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| _num_threads--; |
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| num_threads = _num_threads; |
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| printf("Thread::~Thread(): num_threads=%u\n", num_threads); |
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| _num_threads_mutex.unlock(); |
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| #endif |
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| |
|
| try | try |
| { | { |
| join(); | join(); |
Return to
Thread.cpp
CVS log
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