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openmpi/opal/threads/thread.c
Brian Barrett e45fc567b3 * fix up configure help messages for timers
* make Solaris timer code compile
* fix compile error in solaris threads code

This commit was SVN r6954.
2005-08-21 21:02:28 +00:00

231 строка
4.9 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "opal/threads/threads.h"
#include "ompi/include/constants.h"
static void opal_thread_construct(opal_thread_t *t);
OBJ_CLASS_INSTANCE(opal_thread_t,
opal_object_t,
opal_thread_construct, NULL);
/*
* Constructor
*/
static void opal_thread_construct(opal_thread_t *t)
{
t->t_run = 0;
#ifdef __WINDOWS__
t->t_handle = (HANDLE) -1;
#elif OMPI_HAVE_POSIX_THREADS
t->t_handle = (pthread_t) -1;
#elif OMPI_HAVE_SOLARIS_THREADS
t->t_handle = (thread_t) -1;
#endif
}
#if defined(WIN32)
/************************************************************************
* Windows threads
************************************************************************/
int opal_thread_start(opal_thread_t *t)
{
DWORD tid;
if (OMPI_ENABLE_DEBUG) {
if (NULL == t->t_run || t->t_handle != (HANDLE) -1L) {
return OMPI_ERR_BAD_PARAM;
}
}
t->t_handle = CreateThread(NULL, /* default security attributes */
0, /* default stack size */
(LPVOID) t->t_run,
t, /* argument */
0, /* default creation flags */
&tid);
if (t->t_handle == NULL) {
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}
int opal_thread_join(opal_thread_t *t, void **thr_return)
{
DWORD rc;
if (WaitForSingleObject(t->t_handle, INFINITE) != WAIT_OBJECT_0) {
return OMPI_ERROR;
}
if (!GetExitCodeThread(t->t_handle, &rc)) {
return OMPI_ERROR;
}
*thr_return = (void *) rc;
return OMPI_SUCCESS;
}
bool opal_thread_self_compare(opal_thread_t *t)
{
DWORD thread_id;
thread_id = GetCurrentThreadId();
if (thread_id == t->t_handle) {
return true;
}
return false;
}
opal_thread_t *opal_thread_get_self(void)
{
opal_thread_t *t = OBJ_NEW(opal_thread_t);
t->t_handle = GetCurrentThreadId();
return t;
}
#elif OMPI_HAVE_POSIX_THREADS
/************************************************************************
* POSIX threads
************************************************************************/
int opal_thread_start(opal_thread_t *t)
{
int rc;
if (OMPI_ENABLE_DEBUG) {
if (NULL == t->t_run || t->t_handle != (pthread_t) -1) {
return OMPI_ERR_BAD_PARAM;
}
}
rc = pthread_create(&t->t_handle, NULL, (void*(*)(void*)) t->t_run, t);
return (rc == 0) ? OMPI_SUCCESS : OMPI_ERROR;
}
int opal_thread_join(opal_thread_t *t, void **thr_return)
{
int rc = pthread_join(t->t_handle, thr_return);
return (rc == 0) ? OMPI_SUCCESS : OMPI_ERROR;
}
bool opal_thread_self_compare(opal_thread_t *t)
{
return t->t_handle == pthread_self();
}
opal_thread_t *opal_thread_get_self(void)
{
opal_thread_t *t = OBJ_NEW(opal_thread_t);
t->t_handle = pthread_self();
return t;
}
#elif OMPI_HAVE_SOLARIS_THREADS
/************************************************************************
* Solaris threads
************************************************************************/
int opal_thread_start(opal_thread_t *t)
{
int rc;
if (OMPI_ENABLE_DEBUG) {
if (NULL == t->t_run || t->t_handle != (pthread_t) -1) {
return OMPI_ERR_BAD_PARAM;
}
}
rc = thr_create(NULL, 0, (void*(*)(void*)) t->t_run, t, NULL,
&t->t_handle);
return (rc == 0) ? OMPI_SUCCESS : OMPI_ERROR;
}
int opal_thread_join(opal_thread_t *t, void **thr_return)
{
int rc = thr_join(t->t_handle, NULL, thr_return);
return (rc == 0) ? OMPI_SUCCESS : OMPI_ERROR;
}
bool opal_thread_self_compare(opal_thread_t *t)
{
return t->t_handle == thr_self();
}
opal_thread_t *opal_thread_get_self(void)
{
opal_thread_t *t = OBJ_NEW(opal_thread_t);
t->t_handle = thr_self();
return t;
}
#else
/************************************************************************
* No thread support
************************************************************************/
int opal_thread_start(opal_thread_t *t)
{
return OMPI_ERROR;
}
int opal_thread_join(opal_thread_t *t, void **thr_return)
{
return OMPI_ERROR;
}
bool opal_thread_self_compare(opal_thread_t *t)
{
return true;
}
opal_thread_t *opal_thread_get_self(void)
{
return NULL;
}
#endif