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 #ifdef HAVE_PTHREAD_KILL_OTHER_THREADS_NP
  45         /* LinuxThreads: kill clones */
  46         pthread_kill_other_threads_np();
  47 #endif
  48         return 0;
  49 }
  50
  51 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  52 int
  53 ldap_pvt_thread_set_concurrency(int n)
  54 {
  55 #ifdef HAVE_PTHREAD_SETCONCURRENCY
  56         return pthread_setconcurrency( n );
  57 #elif HAVE_THR_SETCONCURRENCY
  58         return pthread_setconcurrency( n );
  59 #else
  60         return 0;
  61 #endif
  62 }
  63 #endif
  64
  65 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  66 int
  67 ldap_pvt_thread_get_concurrency(void)
  68 {
  69 #ifdef HAVE_PTHREAD_GETCONCURRENCY
  70         return pthread_getconcurrency();
  71 #elif HAVE_THR_GETCONCURRENCY
  72         return pthread_getconcurrency();
  73 #else
  74         return 0;
  75 #endif
  76 }
  77 #endif
  78
  79 int
  80 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
  81         int detach,
  82         void *(*start_routine)( void * ),
  83         void *arg)
  84 {
  85         int rtn;
  86 #if defined(HAVE_PTHREADS_FINAL) && defined(PTHREAD_CREATE_UNDETACHED)
  87         pthread_attr_t attr;
  88
  89         pthread_attr_init(&attr);
  90         if (!detach)
  91                 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_UNDETACHED);
  92
  93         rtn = pthread_create( thread, &attr, start_routine, arg );
  94 #else
  95         rtn = pthread_create( thread, LDAP_INT_THREAD_ATTR_DEFAULT,
  96                                   start_routine, arg );
  97 #endif
  98
  99         if( detach ) {
 100 #ifdef HAVE_PTHREADS_FINAL
 101                 pthread_detach( *thread );
 102 #else
 103                 pthread_detach( thread );
 104 #endif
 105         }
 106         return rtn;
 107 }
 108
 109 void
 110 ldap_pvt_thread_exit( void *retval )
 111 {
 112         pthread_exit( retval );
 113 }
 114
 115 int
 116 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
 117 {
 118 #if !defined( HAVE_PTHREADS_FINAL )
 119         void *dummy;
 120         if (thread_return==NULL)
 121           thread_return=&dummy;
 122 #endif
 123         return pthread_join( thread, thread_return );
 124 }
 125
 126 int
 127 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
 128 {
 129 #ifdef HAVE_PTHREAD_KILL
 130         return pthread_kill( thread, signo );
 131 #else
 132         /* pthread package with DCE */
 133         if (kill( getpid(), signo )<0)
 134                 return errno;
 135         return 0;
 136 #endif
 137 }
 138
 139 int
 140 ldap_pvt_thread_yield( void )
 141 {
 142 #ifdef _POSIX_THREAD_IS_GNU_PTH
 143         sched_yield();
 144         return 0;
 145
 146 #elif HAVE_SCHED_YIELD
 147         return sched_yield();
 148
 149 #elif HAVE_PTHREAD_YIELD
 150         pthread_yield();
 151         return 0;
 152
 153 #elif HAVE_THR_YIELD
 154         return thr_yield();
 155
 156 #else
 157         return 0;
 158 #endif
 159 }
 160
 161 int
 162 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
 163 {
 164         return pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT );
 165 }
 166
 167 int
 168 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
 169 {
 170         return pthread_cond_destroy( cond );
 171 }
 172
 173 int
 174 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
 175 {
 176         return pthread_cond_signal( cond );
 177 }
 178
 179 int
 180 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
 181 {
 182         return pthread_cond_broadcast( cond );
 183 }
 184
 185 int
 186 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
 187                       ldap_pvt_thread_mutex_t *mutex )
 188 {
 189         return pthread_cond_wait( cond, mutex );
 190 }
 191
 192 int
 193 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
 194 {
 195         return pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT );
 196 }
 197
 198 int
 199 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
 200 {
 201         return pthread_mutex_destroy( mutex );
 202 }
 203
 204 int
 205 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
 206 {
 207         return pthread_mutex_lock( mutex );
 208 }
 209
 210 int
 211 ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
 212 {
 213         return pthread_mutex_trylock( mutex );
 214 }
 215
 216 int
 217 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
 218 {
 219         return pthread_mutex_unlock( mutex );
 220 }
 221
 222 #ifdef LDAP_THREAD_HAVE_RDWR
 223 #ifdef HAVE_PTHREAD_RWLOCK_DESTROY
 224 int
 225 ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
 226 {
 227         return pthread_rwlock_init( rw, NULL );
 228 }
 229
 230 int
 231 ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
 232 {
 233         return pthread_rwlock_destroy( rw );
 234 }
 235
 236 int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
 237 {
 238         return pthread_rwlock_rdlock( rw );
 239 }
 240
 241 int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
 242 {
 243         return pthread_rwlock_tryrdlock( rw );
 244 }
 245
 246 int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
 247 {
 248         return pthread_rwlock_unlock( rw );
 249 }
 250
 251 int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
 252 {
 253         return pthread_rwlock_wrlock( rw );
 254 }
 255
 256 int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
 257 {
 258         return pthread_rwlock_trywrlock( rw );
 259 }
 260
 261 int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
 262 {
 263         return pthread_rwlock_unlock( rw );
 264 }
 265
 266 #endif /* HAVE_PTHREAD_RDLOCK_DESTROY */
 267 #endif /* LDAP_THREAD_HAVE_RDWR */
 268 #endif /* HAVE_PTHREADS */
 269