git.sur5r.net Git - openldap/blob - libraries/libldap_r/thr_posix.c

   1 /*
   2  * Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted only
   6  * as authorized by the OpenLDAP Public License.  A copy of this
   7  * license is available at http://www.OpenLDAP.org/license.html or
   8  * in file LICENSE in the top-level directory of the distribution.
   9  */
  10
  11 /* thr_posix.c - wrapper around posix and posixish thread implementations.
  12  */
  13
  14 #include "portable.h"
  15
  16 #include <ac/errno.h>
  17
  18 #include "ldap_pvt_thread.h"
  19
  20 #if defined( HAVE_PTHREADS )
  21
  22 int
  23 ldap_pvt_thread_initialize( void )
  24 {
  25 #if defined( LDAP_THREAD_CONCURRENCY ) && HAVE_PTHREAD_SETCONCURRENCY
  26         ldap_pvt_thread_set_concurrency( LDAP_THREAD_CONCURRENCY );
  27 #endif
  28         return 0;
  29 }
  30
  31 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  32 int
  33 ldap_pvt_thread_set_concurrency(int n)
  34 {
  35 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  36         return pthread_setconcurrency( n );
  37 #elif HAVE_THR_SETCONCURRENCY
  38         return pthread_setconcurrency( n );
  39 #else
  40         return 0;
  41 #endif
  42 }
  43 #endif
  44
  45 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  46 int
  47 ldap_pvt_thread_get_concurrency(void)
  48 {
  49 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  50         return pthread_getconcurrency();
  51 #elif HAVE_THR_GETCONCURRENCY
  52         return pthread_getconcurrency();
  53 #else
  54         return 0;
  55 #endif
  56 }
  57 #endif
  58
  59 int
  60 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
  61         int detach,
  62         void *(*start_routine)( void * ),
  63         void *arg)
  64 {
  65         int rtn = pthread_create( thread, NULL, start_routine, arg );
  66
  67         if( detach ) {
  68 #ifdef HAVE_PTHREADS_FINAL
  69                 pthread_detach( *thread );
  70 #else
  71                 pthread_detach( thread );
  72 #endif
  73         }
  74         return rtn;
  75 }
  76
  77 void
  78 ldap_pvt_thread_exit( void *retval )
  79 {
  80         pthread_exit( retval );
  81 }
  82
  83 int
  84 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
  85 {
  86 #if !defined( HAVE_PTHREADS_FINAL )
  87         void *dummy;
  88         if (thread_return==NULL)
  89           thread_return=&dummy;
  90 #endif
  91         return pthread_join( thread, thread_return );
  92 }
  93
  94 int
  95 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
  96 {
  97 #ifdef HAVE_PTHREAD_KILL
  98         return pthread_kill( thread, signo );
  99 #else
 100         /* pthread package with DCE */
 101         if (kill( getpid(), signo )<0)
 102                 return errno;
 103         return 0;
 104 #endif
 105 }
 106
 107 int
 108 ldap_pvt_thread_yield( void )
 109 {
 110 #ifdef HAVE_SCHED_YIELD
 111         return sched_yield();
 112 #elif HAVE_PTHREAD_YIELD
 113         return pthread_yield();
 114 #elif HAVE_THR_YIELD
 115         return thr_yield();
 116 #else
 117         return 0;
 118 #endif
 119 }
 120
 121 int
 122 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
 123 {
 124         return pthread_cond_init( cond, NULL );
 125 }
 126
 127 int
 128 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
 129 {
 130         return pthread_cond_destroy( cond );
 131 }
 132
 133 int
 134 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
 135 {
 136         return pthread_cond_signal( cond );
 137 }
 138
 139 int
 140 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
 141 {
 142         return pthread_cond_broadcast( cond );
 143 }
 144
 145 int
 146 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
 147                       ldap_pvt_thread_mutex_t *mutex )
 148 {
 149         return pthread_cond_wait( cond, mutex );
 150 }
 151
 152 int
 153 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
 154 {
 155         return pthread_mutex_init( mutex, NULL );
 156 }
 157
 158 int
 159 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
 160 {
 161         return pthread_mutex_destroy( mutex );
 162 }
 163
 164 int
 165 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
 166 {
 167         return pthread_mutex_lock( mutex );
 168 }
 169
 170 int
 171 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
 172 {
 173         return pthread_mutex_unlock( mutex );
 174 }
 175
 176 #endif /* HAVE_PTHREADS */
 177