version 1.91, 2006/08/09 21:12:42
|
version 1.100.2.2, 2008/07/17 19:46:18
|
|
|
// | // |
//============================================================================== | //============================================================================== |
// | // |
// Author: Mike Day (mdday@us.ibm.com) |
|
// |
|
// Modified By: Rudy Schuet (rudy.schuet@compaq.com) 11/12/01 |
|
// added nsk platform support |
|
// Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com) |
|
// Amit K Arora, IBM (amita@in.ibm.com) for PEP#101 |
|
// Sean Keenan, Hewlett-Packard Company (sean.keenan@hp.com) |
|
// David Dillard, VERITAS Software Corp. |
|
// (david.dillard@veritas.com) |
|
// |
|
//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
| |
#include "Thread.h" | #include "Thread.h" |
|
#include <errno.h> |
#include <exception> | #include <exception> |
#include <Pegasus/Common/Tracer.h> | #include <Pegasus/Common/Tracer.h> |
#include "Time.h" | #include "Time.h" |
|
|
| |
extern "C" void *_start_wrapper(void *arg_) | extern "C" void *_start_wrapper(void *arg_) |
{ | { |
StartWrapperArg *arg = (StartWrapperArg *) arg_; |
// Clean up dynamic memory now to prevent a leak if the thread is canceled. |
|
StartWrapperArg arg; |
|
arg.start = ((StartWrapperArg *) arg_)->start; |
|
arg.arg = ((StartWrapperArg *) arg_)->arg; |
|
delete (StartWrapperArg *) arg_; |
| |
void *return_value = (*arg->start) (arg->arg); |
// establish cancelability of the thread |
delete arg; |
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
|
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL); |
|
|
|
void *return_value = (*arg.start) (arg.arg); |
| |
return return_value; | return return_value; |
} | } |
|
|
void Thread::cancel() | void Thread::cancel() |
{ | { |
_cancelled = true; | _cancelled = true; |
pthread_cancel(_handle.thid.tt_handle()); |
pthread_cancel(_handle.thid.thread); |
} | } |
| |
void Thread::test_cancel() | void Thread::test_cancel() |
|
|
#endif | #endif |
} | } |
| |
Boolean Thread::is_cancelled(void) |
Boolean Thread::is_cancelled() |
{ | { |
return _cancelled; | return _cancelled; |
} | } |
|
|
#if defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) | #if defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) |
void Thread::suspend() | void Thread::suspend() |
{ | { |
pthread_kill(_handle.thid.tt_handle(), SIGSTOP); |
pthread_kill(_handle.thid.thread, SIGSTOP); |
} | } |
| |
void Thread::resume() | void Thread::resume() |
{ | { |
pthread_kill(_handle.thid.tt_handle(), SIGCONT); |
pthread_kill(_handle.thid.thread, SIGCONT); |
} | } |
#endif | #endif |
| |
|
|
Threads::sleep(msec); | Threads::sleep(msec); |
} | } |
| |
void Thread::join(void) |
void Thread::join() |
{ | { |
if (!_is_detached && Threads::id(_handle.thid) != 0) |
if (!_is_detached && !Threads::null(_handle.thid)) |
pthread_join(_handle.thid.tt_handle(), &_exit_code); |
pthread_join(_handle.thid.thread, &_exit_code); |
| |
Threads::clear(_handle.thid); | Threads::clear(_handle.thid); |
} | } |
| |
void Thread::thread_init(void) |
void Thread::thread_init() |
{ | { |
#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) | #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
pthread_setintr(PTHREAD_INTR_ENABLE); | pthread_setintr(PTHREAD_INTR_ENABLE); |
|
|
_cancel_enabled = true; | _cancel_enabled = true; |
} | } |
| |
void Thread::detach(void) |
void Thread::detach() |
{ | { |
_is_detached = true; | _is_detached = true; |
#if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) | #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) |
pthread_t thread_id=_handle.thid.tt_handle(); |
pthread_t thread_id=_handle.thid.thread; |
pthread_detach(&thread_id); | pthread_detach(&thread_id); |
#else | #else |
pthread_detach(_handle.thid.tt_handle()); |
pthread_detach(_handle.thid.thread); |
#endif | #endif |
} | } |
| |
|
|
arg->start = _start; | arg->start = _start; |
arg->arg = this; | arg->arg = this; |
| |
Threads::Type type = _is_detached ? Threads::DETACHED : Threads::JOINABLE; |
Threads::Type type = |
|
_is_detached ? Threads::THREADS_DETACHED : Threads::THREADS_JOINABLE; |
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 |
|
|
// are no insufficient memory. Hence we are checking for both. See bug | // are no insufficient memory. Hence we are checking for both. See bug |
// 386. | // 386. |
| |
|
if (rc == -1) |
|
rc = errno; |
if ((rc == EAGAIN) || (rc == ENOMEM)) | if ((rc == EAGAIN) || (rc == ENOMEM)) |
{ | { |
Threads::clear(_handle.thid); | Threads::clear(_handle.thid); |
|
|
// sigaddset(sig, SIGUSR1); | // sigaddset(sig, SIGUSR1); |
// sigaddset(sig, SIGUSR2); | // sigaddset(sig, SIGUSR2); |
// #endif | // #endif |
#ifndef PEGASUS_PLATFORM_ZOS_ZSERIES_IBM |
#if defined (PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || defined (PEGASUS_OS_VMS) |
pthread_sigmask(SIG_BLOCK, sig, NULL); |
|
#else |
|
sigprocmask(SIG_BLOCK, sig, NULL); | sigprocmask(SIG_BLOCK, sig, NULL); |
|
#else |
|
pthread_sigmask(SIG_BLOCK, sig, NULL); |
#endif | #endif |
return sig; | return sig; |
} | } |
| |
Thread::Thread(ThreadReturnType(PEGASUS_THREAD_CDECL * start) (void *), void *parameter, Boolean detached):_is_detached(detached), |
Thread::Thread( |
|
ThreadReturnType(PEGASUS_THREAD_CDECL* start) (void*), |
|
void* parameter, |
|
Boolean detached) |
|
: _is_detached(detached), |
_cancel_enabled(true), | _cancel_enabled(true), |
_cancelled(false), | _cancelled(false), |
_start(start), _cleanup(), _tsd(), _thread_parm(parameter), _exit_code(0) |
_start(start), |
|
_cleanup(), |
|
_tsd(), |
|
_thread_parm(parameter), |
|
_exit_code(0) |
{ | { |
Threads::clear(_handle.thid); | Threads::clear(_handle.thid); |
} | } |
|
|
| |
#if defined(PEGASUS_HAVE_WINDOWS_THREADS) | #if defined(PEGASUS_HAVE_WINDOWS_THREADS) |
| |
ThreadStatus Thread::run(void) |
ThreadStatus Thread::run() |
{ | { |
// Note: A Win32 thread ID is not the same thing as a pthread ID. | // Note: A Win32 thread ID is not the same thing as a pthread ID. |
// Win32 threads have both a thread ID and a handle. The handle | // Win32 threads have both a thread ID and a handle. The handle |
|
|
tt.handle = (HANDLE) _beginthreadex(NULL, 0, _start, this, 0, &threadid); | tt.handle = (HANDLE) _beginthreadex(NULL, 0, _start, this, 0, &threadid); |
_handle.thid = tt; | _handle.thid = tt; |
| |
if (Threads::id(_handle.thid) == 0) |
if (Threads::null(_handle.thid)) |
{ | { |
if (errno == EAGAIN) | if (errno == EAGAIN) |
{ | { |
|
|
return PEGASUS_THREAD_OK; | return PEGASUS_THREAD_OK; |
} | } |
| |
void Thread::cancel(void) |
void Thread::cancel() |
{ | { |
_cancelled = true; | _cancelled = true; |
} | } |
| |
void Thread::test_cancel(void) |
void Thread::test_cancel() |
{ | { |
if (_cancel_enabled && _cancelled) | if (_cancel_enabled && _cancelled) |
{ | { |
|
|
} | } |
} | } |
| |
Boolean Thread::is_cancelled(void) |
Boolean Thread::is_cancelled() |
{ | { |
return _cancelled; | return _cancelled; |
} | } |
| |
void Thread::thread_switch(void) |
void Thread::thread_switch() |
{ | { |
Sleep(0); | Sleep(0); |
} | } |
|
|
Sleep(milliseconds); | Sleep(milliseconds); |
} | } |
| |
void Thread::join(void) |
void Thread::join() |
{ | { |
if (Threads::id(_handle.thid) != 0) |
if (!Threads::null(_handle.thid)) |
{ | { |
if (!_is_detached) | if (!_is_detached) |
{ | { |
|
|
} | } |
} | } |
| |
void Thread::thread_init(void) |
void Thread::thread_init() |
{ | { |
_cancel_enabled = true; | _cancel_enabled = true; |
} | } |
| |
void Thread::detach(void) |
void Thread::detach() |
{ | { |
_is_detached = true; | _is_detached = true; |
} | } |
|
|
} | } |
| |
| |
//thread_data *Thread::put_tsd(const Sint8 *key, void (*delete_func)(void *), Uint32 size, void *value) |
|
|
|
|
|
void Thread::exit_self(ThreadReturnType exit_code) | void Thread::exit_self(ThreadReturnType exit_code) |
{ | { |
#if defined(PEGASUS_PLATFORM_HPUX_ACC) || \ |
#if !defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) \ |
defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) |
&& !defined(PEGASUS_PLATFORM_PASE_ISERIES_IBMCXX) |
// NOTE: pthread_exit exhibits unusual behavior on RHEL 3 U2, as |
Threads::exit(exit_code); |
// documented in Bugzilla 3836. Where feasible, it may be advantageous |
|
// to avoid using this function. |
|
pthread_exit(exit_code); |
|
#else | #else |
// execute the cleanup stack and then return | // execute the cleanup stack and then return |
while (_cleanup.size()) | while (_cleanup.size()) |
|
|
{ | { |
if (Thread::_key_error) | if (Thread::_key_error) |
{ | { |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_THREAD, Tracer::LEVEL4, |
"Thread: ERROR - thread key error"); | "Thread: ERROR - thread key error"); |
return -1; | return -1; |
} | } |
| |
if (TSDKey::create(&Thread::_platform_thread_key) == 0) | if (TSDKey::create(&Thread::_platform_thread_key) == 0) |
{ | { |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_THREAD, Tracer::LEVEL4, |
"Thread: able to create a thread key"); | "Thread: able to create a thread key"); |
Thread::_key_initialized = true; | Thread::_key_initialized = true; |
} | } |
else | else |
{ | { |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_THREAD, Tracer::LEVEL4, |
"Thread: ERROR - unable to create a thread key"); | "Thread: ERROR - unable to create a thread key"); |
Thread::_key_error = true; | Thread::_key_error = true; |
return -1; | return -1; |
|
|
set_thread_specific(Thread::_platform_thread_key, | set_thread_specific(Thread::_platform_thread_key, |
(void *) thrd) == 0) | (void *) thrd) == 0) |
{ | { |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_THREAD, Tracer::LEVEL4, |
"Successful set Thread * into thread specific storage"); | "Successful set Thread * into thread specific storage"); |
} | } |
else | else |
{ | { |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_THREAD, Tracer::LEVEL4, |
"ERROR: error setting Thread * into thread specific storage"); | "ERROR: error setting Thread * into thread specific storage"); |
} | } |
} | } |
|
|
return acceptLangs; | return acceptLangs; |
} | } |
| |
void Thread::setLanguages(AcceptLanguageList * langs) // l10n |
void Thread::setLanguages(AcceptLanguageList * langs) |
{ | { |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::setLanguages"); | PEG_METHOD_ENTER(TRC_THREAD, "Thread::setLanguages"); |
| |
|
|
PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
} | } |
| |
void Thread::clearLanguages() // l10n |
void Thread::clearLanguages() |
{ | { |
PEG_METHOD_ENTER(TRC_THREAD, "Thread::clearLanguages"); | PEG_METHOD_ENTER(TRC_THREAD, "Thread::clearLanguages"); |
| |