git.sur5r.net Git - openldap/blob - libraries/liblthread/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 #include "ldap_pvt_thread.h"
  16
  17 #if defined( HAVE_PTHREADS )
  18
  19 int
  20 ldap_pvt_thread_initialize( void )
  21 {
  22 #if defined( LDAP_THREAD_CONCURRENCY ) && HAVE_PTHREAD_SETCONCURRENCY
  23         ldap_pvt_thread_setconcurrency( LDAP_THREAD_CONCURRENCY );
  24 #endif
  25         return 0;
  26 }
  27
  28 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  29 int
  30 ldap_pvt_thread_set_concurrency(int n)
  31 {
  32 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  33         return pthread_setconcurrency( n );
  34 #elif HAVE_THR_SETCONCURRENCY
  35         return pthread_setconcurrency( n );
  36 #else
  37         return 0;
  38 #endif
  39 }
  40 #endif
  41
  42 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  43 int
  44 ldap_pvt_thread_get_concurrency(void)
  45 {
  46 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  47         return pthread_getconcurrency();
  48 #elif HAVE_THR_GETCONCURRENCY
  49         return pthread_getconcurrency();
  50 #else
  51         return 0;
  52 #endif
  53 }
  54 #endif
  55
  56 int
  57 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
  58         int detach,
  59         void *(*start_routine)( void * ),
  60         void *arg)
  61 {
  62         int rtn = pthread_create( thread, NULL, start_routine, arg );
  63
  64         if( detach ) {
  65 #ifdef HAVE_PTHREADS_FINAL
  66                 pthread_detach( *thread );
  67 #else
  68                 pthread_detach( thread );
  69 #endif
  70         }
  71         return rtn;
  72 }
  73
  74 void
  75 ldap_pvt_thread_exit( void *retval )
  76 {
  77         pthread_exit( retval );
  78 }
  79
  80 int
  81 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
  82 {
  83 #if !defined( HAVE_PTHREADS_FINAL )
  84         void *dummy;
  85         if (thread_return==NULL)
  86           thread_return=&dummy;
  87 #endif
  88         return pthread_join( thread, thread_return );
  89 }
  90
  91 int
  92 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
  93 {
  94 #ifdef HAVE_PTHREAD_KILL
  95         return pthread_kill( thread, signo );
  96 #else
  97         /* pthread package with DCE */
  98         if (kill( getpid(), sig )<0)
  99                 return errno;
 100         return 0;
 101 #endif
 102 }
 103
 104 int
 105 ldap_pvt_thread_yield( void )
 106 {
 107 #ifdef HAVE_SCHED_YIELD
 108         return sched_yield();
 109 #elif HAVE_PTHREAD_YIELD
 110         return pthread_yield();
 111 #elif HAVE_THR_YIELD
 112         return thr_yield();
 113 #else
 114         return 0;
 115 #endif
 116 }
 117
 118 int
 119 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
 120 {
 121         return pthread_cond_init( cond, NULL );
 122 }
 123
 124 int
 125 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
 126 {
 127         return pthread_cond_destroy( cond );
 128 }
 129
 130 int
 131 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
 132 {
 133         return pthread_cond_signal( cond );
 134 }
 135
 136 int
 137 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
 138 {
 139         return pthread_cond_broadcast( cond );
 140 }
 141
 142 int
 143 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
 144                       ldap_pvt_thread_mutex_t *mutex )
 145 {
 146         return pthread_cond_wait( cond, mutex );
 147 }
 148
 149 int
 150 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
 151 {
 152         return pthread_mutex_init( mutex, NULL );
 153 }
 154
 155 int
 156 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
 157 {
 158         return pthread_mutex_destroy( mutex );
 159 }
 160
 161 int
 162 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
 163 {
 164         return pthread_mutex_lock( mutex );
 165 }
 166
 167 int
 168 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
 169 {
 170         return pthread_mutex_unlock( mutex );
 171 }
 172
 173 #endif /* HAVE_PTHREADS */
 174