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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 The OpenLDAP Foundation, Redwood City, California, USA
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms are permitted only
   7  * as authorized by the OpenLDAP Public License.  A copy of this
   8  * license is available at http://www.OpenLDAP.org/license.html or
   9  * in file LICENSE in the top-level directory of the distribution.
  10  */
  11
  12 /* thr_posix.c - wrapper around posix and posixish thread implementations.
  13  */
  14
  15 #include "portable.h"
  16
  17 #if defined( HAVE_PTHREADS )
  18
  19 #include <ac/errno.h>
  20
  21 #include "ldap_pvt_thread.h"
  22
  23
  24 #if HAVE_PTHREADS_D4
  25 #  define LDAP_INT_THREAD_ATTR_DEFAULT          pthread_attr_default
  26 #  define LDAP_INT_THREAD_CONDATTR_DEFAULT      pthread_condattr_default
  27 #  define LDAP_INT_THREAD_MUTEXATTR_DEFAULT     pthread_mutexattr_default
  28 #else
  29 #  define LDAP_INT_THREAD_ATTR_DEFAULT          NULL
  30 #  define LDAP_INT_THREAD_CONDATTR_DEFAULT      NULL
  31 #  define LDAP_INT_THREAD_MUTEXATTR_DEFAULT     NULL
  32 #endif
  33
  34
  35 int
  36 ldap_int_thread_initialize( void )
  37 {
  38         return 0;
  39 }
  40
  41 int
  42 ldap_int_thread_destroy( void )
  43 {
  44         return 0;
  45 }
  46
  47 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  48 int
  49 ldap_pvt_thread_set_concurrency(int n)
  50 {
  51 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  52         return pthread_setconcurrency( n );
  53 #elif HAVE_THR_SETCONCURRENCY
  54         return pthread_setconcurrency( n );
  55 #else
  56         return 0;
  57 #endif
  58 }
  59 #endif
  60
  61 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  62 int
  63 ldap_pvt_thread_get_concurrency(void)
  64 {
  65 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  66         return pthread_getconcurrency();
  67 #elif HAVE_THR_GETCONCURRENCY
  68         return pthread_getconcurrency();
  69 #else
  70         return 0;
  71 #endif
  72 }
  73 #endif
  74
  75 int
  76 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
  77         int detach,
  78         void *(*start_routine)( void * ),
  79         void *arg)
  80 {
  81         int rtn;
  82 #if defined(HAVE_PTHREADS_FINAL) && defined(PTHREAD_CREATE_UNDETACHED)
  83         pthread_attr_t attr;
  84
  85         pthread_attr_init(&attr);
  86         if (!detach)
  87                 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_UNDETACHED);
  88
  89         rtn = pthread_create( thread, &attr, start_routine, arg );
  90 #else
  91         rtn = pthread_create( thread, LDAP_INT_THREAD_ATTR_DEFAULT,
  92                                   start_routine, arg );
  93 #endif
  94
  95         if( detach ) {
  96 #ifdef HAVE_PTHREADS_FINAL
  97                 pthread_detach( *thread );
  98 #else
  99                 pthread_detach( thread );
 100 #endif
 101         }
 102         return rtn;
 103 }
 104
 105 void
 106 ldap_pvt_thread_exit( void *retval )
 107 {
 108         pthread_exit( retval );
 109 }
 110
 111 int
 112 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
 113 {
 114 #if !defined( HAVE_PTHREADS_FINAL )
 115         void *dummy;
 116         if (thread_return==NULL)
 117           thread_return=&dummy;
 118 #endif
 119         return pthread_join( thread, thread_return );
 120 }
 121
 122 int
 123 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
 124 {
 125 #ifdef HAVE_PTHREAD_KILL
 126         return pthread_kill( thread, signo );
 127 #else
 128         /* pthread package with DCE */
 129         if (kill( getpid(), signo )<0)
 130                 return errno;
 131         return 0;
 132 #endif
 133 }
 134
 135 int
 136 ldap_pvt_thread_yield( void )
 137 {
 138 #ifdef _POSIX_THREAD_IS_GNU_PTH
 139         sched_yield();
 140         return 0;
 141
 142 #elif HAVE_SCHED_YIELD
 143         return sched_yield();
 144
 145 #elif HAVE_PTHREAD_YIELD
 146         pthread_yield();
 147         return 0;
 148
 149 #elif HAVE_THR_YIELD
 150         return thr_yield();
 151
 152 #else
 153         return 0;
 154 #endif
 155 }
 156
 157 int
 158 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
 159 {
 160         return pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT );
 161 }
 162
 163 int
 164 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
 165 {
 166         return pthread_cond_destroy( cond );
 167 }
 168
 169 int
 170 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
 171 {
 172         return pthread_cond_signal( cond );
 173 }
 174
 175 int
 176 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
 177 {
 178         return pthread_cond_broadcast( cond );
 179 }
 180
 181 int
 182 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
 183                       ldap_pvt_thread_mutex_t *mutex )
 184 {
 185         return pthread_cond_wait( cond, mutex );
 186 }
 187
 188 int
 189 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
 190 {
 191         return pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT );
 192 }
 193
 194 int
 195 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
 196 {
 197         return pthread_mutex_destroy( mutex );
 198 }
 199
 200 int
 201 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
 202 {
 203         return pthread_mutex_lock( mutex );
 204 }
 205
 206 int
 207 ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
 208 {
 209         return pthread_mutex_trylock( mutex );
 210 }
 211
 212 int
 213 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
 214 {
 215         return pthread_mutex_unlock( mutex );
 216 }
 217
 218 #ifdef LDAP_THREAD_HAVE_RDWR
 219 #ifdef HAVE_PTHREAD_RWLOCK_DESTROY
 220 int
 221 ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
 222 {
 223         return pthread_rwlock_init( rw, NULL );
 224 }
 225
 226 int
 227 ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
 228 {
 229         return pthread_rwlock_destroy( rw );
 230 }
 231
 232 int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
 233 {
 234         return pthread_rwlock_rdlock( rw );
 235 }
 236
 237 int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
 238 {
 239         return pthread_rwlock_tryrdlock( rw );
 240 }
 241
 242 int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
 243 {
 244         return pthread_rwlock_unlock( rw );
 245 }
 246
 247 int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
 248 {
 249         return pthread_rwlock_wrlock( rw );
 250 }
 251
 252 int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
 253 {
 254         return pthread_rwlock_trywrlock( rw );
 255 }
 256
 257 int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
 258 {
 259         return pthread_rwlock_unlock( rw );
 260 }
 261
 262 #endif /* HAVE_PTHREAD_RDLOCK_DESTROY */
 263 #endif /* LDAP_THREAD_HAVE_RDWR */
 264 #endif /* HAVE_PTHREADS */
 265