3 * Copyright 1998-2003 The OpenLDAP Foundation, Redwood City, California, USA
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.
12 /* thr_posix.c - wrapper around posix and posixish thread implementations.
17 #if defined( HAVE_PTHREADS )
21 #include "ldap_pvt_thread.h"
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
29 # define LDAP_INT_THREAD_ATTR_DEFAULT NULL
30 # define LDAP_INT_THREAD_CONDATTR_DEFAULT NULL
31 # define LDAP_INT_THREAD_MUTEXATTR_DEFAULT NULL
36 ldap_int_thread_initialize( void )
42 ldap_int_thread_destroy( void )
44 #ifdef HAVE_PTHREAD_KILL_OTHER_THREADS_NP
45 /* LinuxThreads: kill clones */
46 pthread_kill_other_threads_np();
51 #ifdef LDAP_THREAD_HAVE_SETCONCURRENCY
53 ldap_pvt_thread_set_concurrency(int n)
55 #ifdef HAVE_PTHREAD_SETCONCURRENCY
56 return pthread_setconcurrency( n );
57 #elif HAVE_THR_SETCONCURRENCY
58 return thr_setconcurrency( n );
65 #ifdef LDAP_THREAD_HAVE_GETCONCURRENCY
67 ldap_pvt_thread_get_concurrency(void)
69 #ifdef HAVE_PTHREAD_GETCONCURRENCY
70 return pthread_getconcurrency();
71 #elif HAVE_THR_GETCONCURRENCY
72 return thr_getconcurrency();
79 /* detachstate appeared in Draft 6, but without manifest constants.
80 * in Draft 7 they were called PTHREAD_CREATE_UNDETACHED and ...DETACHED.
81 * in Draft 8 on, ...UNDETACHED became ...JOINABLE.
83 #ifndef PTHREAD_CREATE_JOINABLE
84 #ifdef PTHREAD_CREATE_UNDETACHED
85 #define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED
87 #define PTHREAD_CREATE_JOINABLE 0
91 #ifndef PTHREAD_CREATE_DETACHED
92 #define PTHREAD_CREATE_DETACHED 1
96 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
98 void *(*start_routine)( void * ),
104 /* Always create the thread attrs, so we can set stacksize if we need to */
105 #if HAVE_PTHREADS > 5
106 pthread_attr_init(&attr);
108 pthread_attr_create(&attr);
111 #if defined(LDAP_PVT_THREAD_STACK_SIZE) && LDAP_PVT_THREAD_STACK_SIZE > 0
112 /* this should be tunable */
113 pthread_attr_setstacksize( &attr, LDAP_PVT_THREAD_STACK_SIZE );
116 #if HAVE_PTHREADS > 5
117 detach = detach ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE;
118 #if HAVE_PTHREADS == 6
119 pthread_attr_setdetachstate(&attr, &detach);
121 pthread_attr_setdetachstate(&attr, detach);
124 rtn = pthread_create( thread, &attr, start_routine, arg );
125 #if HAVE_PTHREADS > 5
126 pthread_attr_destroy(&attr);
128 pthread_attr_delete(&attr);
130 pthread_detach( thread );
134 #if HAVE_PTHREADS < 7
135 if ( rtn < 0 ) rtn = errno;
141 ldap_pvt_thread_exit( void *retval )
143 pthread_exit( retval );
147 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
149 #if HAVE_PTHREADS < 7
152 if (thread_return==NULL)
153 thread_return=&dummy;
155 if ( pthread_join( thread, thread_return ) < 0 ) return errno;
158 return pthread_join( thread, thread_return );
163 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
165 #if ( HAVE_PTHREAD_KILL && HAVE_PTHREADS > 6 )
166 /* MacOS 10.1 is detected as v10 but has no pthread_kill() */
167 return pthread_kill( thread, signo );
168 #elif ( HAVE_PTHREAD_KILL && HAVE_PTHREADS > 4 )
169 if ( pthread_kill( thread, signo ) < 0 ) return errno;
172 /* pthread package with DCE */
173 if (kill( getpid(), signo )<0)
180 ldap_pvt_thread_yield( void )
185 #elif HAVE_PTHREADS == 10
186 return sched_yield();
188 #elif defined(_POSIX_THREAD_IS_GNU_PTH)
192 #elif HAVE_PTHREADS == 6
202 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
204 #if HAVE_PTHREADS < 7
205 if ( pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT ) < 0 )
209 return pthread_cond_init( cond, LDAP_INT_THREAD_CONDATTR_DEFAULT );
214 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
216 #if HAVE_PTHREADS < 7
217 if ( pthread_cond_destroy( cond ) < 0 ) return errno;
220 return pthread_cond_destroy( cond );
225 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
227 #if HAVE_PTHREADS < 7
228 if ( pthread_cond_signal( cond ) < 0 ) return errno;
231 return pthread_cond_signal( cond );
236 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
238 #if HAVE_PTHREADS < 7
239 if ( pthread_cond_broadcast( cond ) < 0 ) return errno;
242 return pthread_cond_broadcast( cond );
247 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
248 ldap_pvt_thread_mutex_t *mutex )
250 #if HAVE_PTHREADS < 7
251 if ( pthread_cond_wait( cond, mutex ) < 0 ) return errno;
254 return pthread_cond_wait( cond, mutex );
259 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
261 #if HAVE_PTHREADS < 7
262 if ( pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT )<0)
266 return pthread_mutex_init( mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT );
271 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
273 #if HAVE_PTHREADS < 7
274 if ( pthread_mutex_destroy( mutex ) < 0 ) return errno;
277 return pthread_mutex_destroy( mutex );
282 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
284 #if HAVE_PTHREADS < 7
285 if ( pthread_mutex_lock( mutex ) < 0 ) return errno;
288 return pthread_mutex_lock( mutex );
293 ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
295 #if HAVE_PTHREADS < 7
296 if ( pthread_mutex_trylock( mutex ) < 0 ) return errno;
299 return pthread_mutex_trylock( mutex );
304 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
306 #if HAVE_PTHREADS < 7
307 if ( pthread_mutex_unlock( mutex ) < 0 ) return errno;
310 return pthread_mutex_unlock( mutex );
314 ldap_pvt_thread_t ldap_pvt_thread_self( void )
316 return pthread_self();
319 #ifdef LDAP_THREAD_HAVE_RDWR
320 #ifdef HAVE_PTHREAD_RWLOCK_DESTROY
322 ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
324 #if HAVE_PTHREADS < 7
325 if ( pthread_rwlock_init( rw, NULL ) < 0 ) return errno;
328 return pthread_rwlock_init( rw, NULL );
333 ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
335 #if HAVE_PTHREADS < 7
336 if ( pthread_rwlock_destroy( rw ) < 0 ) return errno;
339 return pthread_rwlock_destroy( rw );
343 int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
345 #if HAVE_PTHREADS < 7
346 if ( pthread_rwlock_rdlock( rw ) < 0 ) return errno;
349 return pthread_rwlock_rdlock( rw );
353 int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
355 #if HAVE_PTHREADS < 7
356 if ( pthread_rwlock_tryrdlock( rw ) < 0 ) return errno;
359 return pthread_rwlock_tryrdlock( rw );
363 int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
365 #if HAVE_PTHREADS < 7
366 if ( pthread_rwlock_unlock( rw ) < 0 ) return errno;
369 return pthread_rwlock_unlock( rw );
373 int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
375 #if HAVE_PTHREADS < 7
376 if ( pthread_rwlock_wrlock( rw ) < 0 ) return errno;
379 return pthread_rwlock_wrlock( rw );
383 int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
385 #if HAVE_PTHREADS < 7
386 if ( pthread_rwlock_trywrlock( rw ) < 0 ) return errno;
389 return pthread_rwlock_trywrlock( rw );
393 int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
395 #if HAVE_PTHREADS < 7
396 if ( pthread_rwlock_unlock( rw ) < 0 ) return errno;
399 return pthread_rwlock_unlock( rw );
403 #endif /* HAVE_PTHREAD_RDLOCK_DESTROY */
404 #endif /* LDAP_THREAD_HAVE_RDWR */
405 #endif /* HAVE_PTHREADS */