mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
389 lines
8.3 KiB
C
389 lines
8.3 KiB
C
/* thr_posix.c - wrapper around posix and posixish thread implementations. */
|
|
/* $OpenLDAP$ */
|
|
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
|
|
*
|
|
* Copyright 1998-2011 The OpenLDAP Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted only as authorized by the OpenLDAP
|
|
* Public License.
|
|
*
|
|
* A copy of this license is available in file LICENSE in the
|
|
* top-level directory of the distribution or, alternatively, at
|
|
* <http://www.OpenLDAP.org/license.html>.
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#if defined( HAVE_PTHREADS )
|
|
|
|
#include <ac/errno.h>
|
|
|
|
#ifdef REPLACE_BROKEN_YIELD
|
|
#ifndef HAVE_NANOSLEEP
|
|
#include <ac/socket.h>
|
|
#endif
|
|
#include <ac/time.h>
|
|
#endif
|
|
|
|
#include "ldap_pvt_thread.h" /* Get the thread interface */
|
|
#define LDAP_THREAD_IMPLEMENTATION
|
|
#define LDAP_THREAD_RDWR_IMPLEMENTATION
|
|
#include "ldap_thr_debug.h" /* May rename the symbols defined below */
|
|
#include <signal.h> /* For pthread_kill() */
|
|
|
|
#if HAVE_PTHREADS < 6
|
|
# define LDAP_INT_THREAD_ATTR_DEFAULT pthread_attr_default
|
|
# define LDAP_INT_THREAD_CONDATTR_DEFAULT pthread_condattr_default
|
|
# define LDAP_INT_THREAD_MUTEXATTR_DEFAULT pthread_mutexattr_default
|
|
#else
|
|
# define LDAP_INT_THREAD_ATTR_DEFAULT NULL
|
|
# define LDAP_INT_THREAD_CONDATTR_DEFAULT NULL
|
|
# define LDAP_INT_THREAD_MUTEXATTR_DEFAULT NULL
|
|
#endif
|
|
|
|
#ifdef LDAP_THREAD_DEBUG
|
|
# if defined LDAP_INT_THREAD_MUTEXATTR /* May be defined in CPPFLAGS */
|
|
# elif defined HAVE_PTHREAD_KILL_OTHER_THREADS_NP
|
|
/* LinuxThreads hack */
|
|
# define LDAP_INT_THREAD_MUTEXATTR PTHREAD_MUTEX_ERRORCHECK_NP
|
|
# else
|
|
# define LDAP_INT_THREAD_MUTEXATTR PTHREAD_MUTEX_ERRORCHECK
|
|
# endif
|
|
static pthread_mutexattr_t mutex_attr;
|
|
# undef LDAP_INT_THREAD_MUTEXATTR_DEFAULT
|
|
# define LDAP_INT_THREAD_MUTEXATTR_DEFAULT &mutex_attr
|
|
#endif
|
|
|
|
#if HAVE_PTHREADS < 7
|
|
#define ERRVAL(val) ((val) < 0 ? errno : 0)
|
|
#else
|
|
#define ERRVAL(val) (val)
|
|
#endif
|
|
|
|
int
|
|
ldap_int_thread_initialize( void )
|
|
{
|
|
#ifdef LDAP_INT_THREAD_MUTEXATTR
|
|
pthread_mutexattr_init( &mutex_attr );
|
|
pthread_mutexattr_settype( &mutex_attr, LDAP_INT_THREAD_MUTEXATTR );
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ldap_int_thread_destroy( void )
|
|
{
|
|
#ifdef HAVE_PTHREAD_KILL_OTHER_THREADS_NP
|
|
/* LinuxThreads: kill clones */
|
|
pthread_kill_other_threads_np();
|
|
#endif
|
|
#ifdef LDAP_INT_THREAD_MUTEXATTR
|
|
pthread_mutexattr_destroy( &mutex_attr );
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#ifdef LDAP_THREAD_HAVE_SETCONCURRENCY
|
|
int
|
|
ldap_pvt_thread_set_concurrency(int n)
|
|
{
|
|
#ifdef HAVE_PTHREAD_SETCONCURRENCY
|
|
return pthread_setconcurrency( n );
|
|
#elif defined(HAVE_THR_SETCONCURRENCY)
|
|
return thr_setconcurrency( n );
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef LDAP_THREAD_HAVE_GETCONCURRENCY
|
|
int
|
|
ldap_pvt_thread_get_concurrency(void)
|
|
{
|
|
#ifdef HAVE_PTHREAD_GETCONCURRENCY
|
|
return pthread_getconcurrency();
|
|
#elif defined(HAVE_THR_GETCONCURRENCY)
|
|
return thr_getconcurrency();
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/* detachstate appeared in Draft 6, but without manifest constants.
|
|
* in Draft 7 they were called PTHREAD_CREATE_UNDETACHED and ...DETACHED.
|
|
* in Draft 8 on, ...UNDETACHED became ...JOINABLE.
|
|
*/
|
|
#ifndef PTHREAD_CREATE_JOINABLE
|
|
#ifdef PTHREAD_CREATE_UNDETACHED
|
|
#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED
|
|
#else
|
|
#define PTHREAD_CREATE_JOINABLE 0
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef PTHREAD_CREATE_DETACHED
|
|
#define PTHREAD_CREATE_DETACHED 1
|
|
#endif
|
|
|
|
int
|
|
ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
|
|
int detach,
|
|
void *(*start_routine)( void * ),
|
|
void *arg)
|
|
{
|
|
int rtn;
|
|
pthread_attr_t attr;
|
|
|
|
/* Always create the thread attrs, so we can set stacksize if we need to */
|
|
#if HAVE_PTHREADS > 5
|
|
pthread_attr_init(&attr);
|
|
#else
|
|
pthread_attr_create(&attr);
|
|
#endif
|
|
|
|
#ifdef LDAP_PVT_THREAD_SET_STACK_SIZE
|
|
/* this should be tunable */
|
|
pthread_attr_setstacksize( &attr, LDAP_PVT_THREAD_STACK_SIZE );
|
|
#endif
|
|
|
|
#if HAVE_PTHREADS > 5
|
|
detach = detach ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE;
|
|
#if HAVE_PTHREADS == 6
|
|
pthread_attr_setdetachstate(&attr, &detach);
|
|
#else
|
|
pthread_attr_setdetachstate(&attr, detach);
|
|
#endif
|
|
#endif
|
|
|
|
#if HAVE_PTHREADS < 5
|
|
rtn = pthread_create( thread, attr, start_routine, arg );
|
|
#else
|
|
rtn = pthread_create( thread, &attr, start_routine, arg );
|
|
#endif
|
|
|
|
#if HAVE_PTHREADS > 5
|
|
pthread_attr_destroy(&attr);
|
|
#else
|
|
pthread_attr_delete(&attr);
|
|
if( detach ) {
|
|
pthread_detach( thread );
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_PTHREADS < 7
|
|
if ( rtn < 0 ) rtn = errno;
|
|
#endif
|
|
return rtn;
|
|
}
|
|
|
|
void
|
|
ldap_pvt_thread_exit( void *retval )
|
|
{
|
|
pthread_exit( retval );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
void *dummy;
|
|
if (thread_return==NULL)
|
|
thread_return=&dummy;
|
|
#endif
|
|
return ERRVAL( pthread_join( thread, thread_return ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
|
|
{
|
|
#if defined(HAVE_PTHREAD_KILL) && HAVE_PTHREADS > 4
|
|
/* MacOS 10.1 is detected as v10 but has no pthread_kill() */
|
|
return ERRVAL( pthread_kill( thread, signo ) );
|
|
#else
|
|
/* pthread package with DCE */
|
|
if (kill( getpid(), signo )<0)
|
|
return errno;
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_yield( void )
|
|
{
|
|
#ifdef REPLACE_BROKEN_YIELD
|
|
#ifdef HAVE_NANOSLEEP
|
|
struct timespec t = { 0, 0 };
|
|
nanosleep(&t, NULL);
|
|
#else
|
|
struct timeval tv = {0,0};
|
|
select( 0, NULL, NULL, NULL, &tv );
|
|
#endif
|
|
return 0;
|
|
|
|
#elif defined(HAVE_THR_YIELD)
|
|
thr_yield();
|
|
return 0;
|
|
|
|
#elif HAVE_PTHREADS == 10
|
|
return sched_yield();
|
|
|
|
#elif defined(_POSIX_THREAD_IS_GNU_PTH)
|
|
sched_yield();
|
|
return 0;
|
|
|
|
#elif HAVE_PTHREADS == 6
|
|
pthread_yield(NULL);
|
|
return 0;
|
|
|
|
#else
|
|
pthread_yield();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
return ERRVAL( pthread_cond_init(
|
|
cond, LDAP_INT_THREAD_CONDATTR_DEFAULT ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
return ERRVAL( pthread_cond_destroy( cond ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
return ERRVAL( pthread_cond_signal( cond ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
return ERRVAL( pthread_cond_broadcast( cond ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
|
|
ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_cond_wait( cond, mutex ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_mutex_init(
|
|
mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_mutex_destroy( mutex ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_mutex_lock( mutex ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_mutex_trylock( mutex ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
return ERRVAL( pthread_mutex_unlock( mutex ) );
|
|
}
|
|
|
|
ldap_pvt_thread_t ldap_pvt_thread_self( void )
|
|
{
|
|
return pthread_self();
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_key_create( ldap_pvt_thread_key_t *key )
|
|
{
|
|
return pthread_key_create( key, NULL );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_key_destroy( ldap_pvt_thread_key_t key )
|
|
{
|
|
return pthread_key_delete( key );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_key_setdata( ldap_pvt_thread_key_t key, void *data )
|
|
{
|
|
return pthread_setspecific( key, data );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_key_getdata( ldap_pvt_thread_key_t key, void **data )
|
|
{
|
|
*data = pthread_getspecific( key );
|
|
return 0;
|
|
}
|
|
|
|
#ifdef LDAP_THREAD_HAVE_RDWR
|
|
#ifdef HAVE_PTHREAD_RWLOCK_DESTROY
|
|
int
|
|
ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_init( rw, NULL ) );
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_destroy( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_rdlock( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_tryrdlock( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_unlock( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_wrlock( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_trywrlock( rw ) );
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
return ERRVAL( pthread_rwlock_unlock( rw ) );
|
|
}
|
|
|
|
#endif /* HAVE_PTHREAD_RWLOCK_DESTROY */
|
|
#endif /* LDAP_THREAD_HAVE_RDWR */
|
|
#endif /* HAVE_PTHREADS */
|
|
|