mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
414 lines
8.4 KiB
C
414 lines
8.4 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 1998-2005 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>
|
|
|
|
#include "ldap_pvt_thread.h"
|
|
|
|
|
|
#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
|
|
|
|
|
|
int
|
|
ldap_int_thread_initialize( void )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ldap_int_thread_destroy( void )
|
|
{
|
|
#ifdef HAVE_PTHREAD_KILL_OTHER_THREADS_NP
|
|
/* LinuxThreads: kill clones */
|
|
pthread_kill_other_threads_np();
|
|
#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 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 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;
|
|
|
|
if ( pthread_join( thread, thread_return ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_join( thread, thread_return );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
|
|
{
|
|
#if ( HAVE_PTHREAD_KILL && HAVE_PTHREADS > 6 )
|
|
/* MacOS 10.1 is detected as v10 but has no pthread_kill() */
|
|
return pthread_kill( thread, signo );
|
|
#elif ( HAVE_PTHREAD_KILL && HAVE_PTHREADS > 4 )
|
|
if ( pthread_kill( thread, signo ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
/* pthread package with DCE */
|
|
if (kill( getpid(), signo )<0)
|
|
return errno;
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_yield( void )
|
|
{
|
|
#if HAVE_THR_YIELD
|
|
return thr_yield();
|
|
|
|
#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 )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT ) < 0 )
|
|
return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_cond_destroy( cond ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_cond_destroy( cond );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_cond_signal( cond ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_cond_signal( cond );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_cond_broadcast( cond ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_cond_broadcast( cond );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
|
|
ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_cond_wait( cond, mutex ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_cond_wait( cond, mutex );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT )<0)
|
|
return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_mutex_destroy( mutex ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_mutex_destroy( mutex );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_mutex_lock( mutex ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_mutex_lock( mutex );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_mutex_trylock( mutex ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_mutex_trylock( mutex );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_mutex_unlock( mutex ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_mutex_unlock( mutex );
|
|
#endif
|
|
}
|
|
|
|
ldap_pvt_thread_t ldap_pvt_thread_self( void )
|
|
{
|
|
return pthread_self();
|
|
}
|
|
|
|
#ifdef LDAP_THREAD_HAVE_RDWR
|
|
#ifdef HAVE_PTHREAD_RWLOCK_DESTROY
|
|
int
|
|
ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_init( rw, NULL ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_init( rw, NULL );
|
|
#endif
|
|
}
|
|
|
|
int
|
|
ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_destroy( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_destroy( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_rdlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_rdlock( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_tryrdlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_tryrdlock( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_unlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_unlock( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_wrlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_wrlock( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_trywrlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_trywrlock( rw );
|
|
#endif
|
|
}
|
|
|
|
int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
|
|
{
|
|
#if HAVE_PTHREADS < 7
|
|
if ( pthread_rwlock_unlock( rw ) < 0 ) return errno;
|
|
return 0;
|
|
#else
|
|
return pthread_rwlock_unlock( rw );
|
|
#endif
|
|
}
|
|
|
|
#endif /* HAVE_PTHREAD_RDLOCK_DESTROY */
|
|
#endif /* LDAP_THREAD_HAVE_RDWR */
|
|
#endif /* HAVE_PTHREADS */
|
|
|