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   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 /* ldap_pvt_thread.h - ldap threads header file NG */
  12
  13 #ifndef _LDAP_PVT_THREAD_H
  14 #define _LDAP_PVT_THREAD_H
  15
  16 #include "ldap_cdefs.h"
  17
  18 #if defined( HAVE_PTHREADS )
  19 /**********************************
  20  *                                *
  21  * definitions for POSIX Threads  *
  22  *                                *
  23  **********************************/
  24
  25 #include <pthread.h>
  26 #ifdef HAVE_SCHED_H
  27 #include <sched.h>
  28 #endif
  29
  30 LDAP_BEGIN_DECL
  31
  32 typedef pthread_t               ldap_pvt_thread_t;
  33 typedef pthread_mutex_t         ldap_pvt_thread_mutex_t;
  34 typedef pthread_cond_t          ldap_pvt_thread_cond_t;
  35
  36 #if defined( _POSIX_REENTRANT_FUNCTIONS ) || \
  37         defined( _POSIX_THREAD_SAFE_FUNCTIONS ) || \
  38         defined( _POSIX_THREADSAFE_FUNCTIONS )
  39 #define HAVE_REENTRANT_FUNCTIONS 1
  40 #endif
  41
  42 #if defined( HAVE_PTHREAD_GETCONCURRENCY ) || \
  43         defined( HAVE_THR_GETCONCURRENCY )
  44 #define HAVE_GETCONCURRENCY 1
  45 #endif
  46
  47 #if defined( HAVE_PTHREAD_SETCONCURRENCY ) || \
  48         defined( HAVE_THR_SETCONCURRENCY )
  49 #define HAVE_SETCONCURRENCY 1
  50 #endif
  51
  52 LDAP_END_DECL
  53
  54 #elif defined ( HAVE_MACH_CTHREADS )
  55 /**********************************
  56  *                                *
  57  * definitions for Mach CThreads  *
  58  *                                *
  59  **********************************/
  60
  61 #include <mach/cthreads.h>
  62
  63 LDAP_BEGIN_DECL
  64
  65 typedef cthread_t               ldap_pvt_thread_t;
  66 typedef struct mutex            ldap_pvt_thread_mutex_t;
  67 typedef struct condition        ldap_pvt_thread_cond_t;
  68
  69 LDAP_END_DECL
  70
  71 #elif defined( HAVE_GNU_PTH )
  72 /***********************************
  73  *                                 *
  74  * thread definitions for GNU Pth  *
  75  *                                 *
  76  ***********************************/
  77
  78 #include <pth.h>
  79
  80 LDAP_BEGIN_DECL
  81
  82 typedef pth_t           ldap_pvt_thread_t;
  83 typedef pth_mutex_t     ldap_pvt_thread_mutex_t;
  84 typedef pth_cond_t      ldap_pvt_thread_cond_t;
  85
  86 LDAP_END_DECL
  87
  88
  89 #elif defined( HAVE_THR )
  90 /********************************************
  91  *                                          *
  92  * thread definitions for Solaris LWP (THR) *
  93  *                                          *
  94  ********************************************/
  95
  96 #include <thread.h>
  97 #include <synch.h>
  98
  99 LDAP_BEGIN_DECL
 100
 101 typedef thread_t                ldap_pvt_thread_t;
 102 typedef mutex_t                 ldap_pvt_thread_mutex_t;
 103 typedef cond_t                  ldap_pvt_thread_cond_t;
 104
 105 #define HAVE_REENTRANT_FUNCTIONS 1
 106
 107 #ifdef HAVE_THR_GETCONCURRENCY
 108 #define HAVE_GETCONCURRENCY 1
 109 #endif
 110 #ifdef HAVE_THR_SETCONCURRENCY
 111 #define HAVE_SETCONCURRENCY 1
 112 #endif
 113
 114 LDAP_END_DECL
 115
 116 #elif defined( HAVE_LWP )
 117 /*************************************
 118  *                                   *
 119  * thread definitions for SunOS LWP  *
 120  *                                   *
 121  *************************************/
 122
 123 #include <lwp/lwp.h>
 124 #include <lwp/stackdep.h>
 125
 126 LDAP_BEGIN_DECL
 127
 128 typedef thread_t                ldap_pvt_thread_t;
 129 typedef mon_t                   ldap_pvt_thread_mutex_t;
 130 struct ldap_pvt_thread_lwp_cv {
 131         int             lcv_created;
 132         cv_t            lcv_cv;
 133 };
 134 typedef struct ldap_pvt_thread_lwp_cv ldap_pvt_thread_cond_t;
 135
 136 #define HAVE_REENTRANT_FUNCTIONS 1
 137
 138 LDAP_END_DECL
 139
 140 #elif defined(HAVE_NT_THREADS)
 141
 142 LDAP_BEGIN_DECL
 143
 144 #include <process.h>
 145 #include <windows.h>
 146
 147 typedef unsigned long   ldap_pvt_thread_t;
 148 typedef HANDLE  ldap_pvt_thread_mutex_t;
 149 typedef HANDLE  ldap_pvt_thread_cond_t;
 150
 151 LDAP_END_DECL
 152
 153 #else
 154
 155 /***********************************
 156  *                                 *
 157  * thread definitions for no       *
 158  * underlying library support      *
 159  *                                 *
 160  ***********************************/
 161
 162 LDAP_BEGIN_DECL
 163
 164 #ifndef NO_THREADS
 165 #define NO_THREADS 1
 166 #endif
 167
 168 typedef int                     ldap_pvt_thread_t;
 169 typedef int                     ldap_pvt_thread_mutex_t;
 170 typedef int                     ldap_pvt_thread_cond_t;
 171
 172 LDAP_END_DECL
 173
 174 #endif /* no threads support */
 175
 176 LDAP_BEGIN_DECL
 177
 178 LIBLDAP_F( int )
 179 ldap_pvt_thread_initialize LDAP_P(( void ));
 180
 181 LIBLDAP_F( int )
 182 ldap_pvt_thread_destroy LDAP_P(( void ));
 183
 184 LIBLDAP_F( unsigned int )
 185 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 186
 187 #ifdef HAVE_GETCONCURRENCY
 188 LIBLDAP_F( int )
 189 ldap_pvt_thread_get_concurrency LDAP_P(( void ));
 190 #endif
 191
 192 #ifdef HAVE_SETCONCURRENCY
 193 #       ifndef LDAP_THREAD_CONCURRENCY
 194         /* three concurrent threads should be enough */
 195 #       define LDAP_THREAD_CONCURRENCY  3
 196 #       endif
 197 LIBLDAP_F( int )
 198 ldap_pvt_thread_set_concurrency LDAP_P(( int ));
 199 #endif
 200
 201 #define LDAP_PVT_THREAD_CREATE_JOINABLE 0
 202 #define LDAP_PVT_THREAD_CREATE_DETACHED 1
 203
 204 LIBLDAP_F( int )
 205 ldap_pvt_thread_create LDAP_P((
 206         ldap_pvt_thread_t * thread,
 207         int     detach,
 208         void *(*start_routine)( void * ),
 209         void *arg));
 210
 211 LIBLDAP_F( void )
 212 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 213
 214 LIBLDAP_F( int )
 215 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 216
 217 LIBLDAP_F( int )
 218 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 219
 220 LIBLDAP_F( int )
 221 ldap_pvt_thread_yield LDAP_P(( void ));
 222
 223 LIBLDAP_F( int )
 224 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 225
 226 LIBLDAP_F( int )
 227 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 228
 229 LIBLDAP_F( int )
 230 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 231
 232 LIBLDAP_F( int )
 233 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 234
 235 LIBLDAP_F( int )
 236 ldap_pvt_thread_cond_wait LDAP_P((
 237         ldap_pvt_thread_cond_t *cond,
 238         ldap_pvt_thread_mutex_t *mutex ));
 239
 240 LIBLDAP_F( int )
 241 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 242
 243 LIBLDAP_F( int )
 244 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 245
 246 LIBLDAP_F( int )
 247 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 248
 249 LIBLDAP_F( int )
 250 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 251
 252 LIBLDAP_F( int )
 253 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 254
 255 typedef struct ldap_pvt_thread_rdwr_var {
 256         ldap_pvt_thread_mutex_t ltrw_mutex;
 257         ldap_pvt_thread_cond_t ltrw_read;       /* wait for read */
 258         ldap_pvt_thread_cond_t ltrw_write;      /* wait for write */
 259         int ltrw_valid;
 260 #define LDAP_PVT_THREAD_RDWR_VALID 0x0bad
 261         int ltrw_r_active;
 262         int ltrw_w_active;
 263         int ltrw_r_wait;
 264         int ltrw_w_wait;
 265 } ldap_pvt_thread_rdwr_t;
 266
 267 LIBLDAP_F( int )
 268 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 269
 270 LIBLDAP_F( int )
 271 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 272
 273 LIBLDAP_F( int )
 274 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 275
 276 LIBLDAP_F( int )
 277 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 278
 279 LIBLDAP_F( int )
 280 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 281
 282 LIBLDAP_F( int )
 283 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 284
 285 LIBLDAP_F( int )
 286 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 287
 288 LIBLDAP_F( int )
 289 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 290
 291 #ifdef LDAP_DEBUG
 292 LIBLDAP_F( int )
 293 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 294
 295 LIBLDAP_F( int )
 296 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 297
 298 LIBLDAP_F( int )
 299 ldap_pvt_thread_rdwr_active LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 300 #endif /* LDAP_DEBUG */
 301
 302 #define LDAP_PVT_THREAD_EINVAL EINVAL
 303 #define LDAP_PVT_THREAD_EBUSY EINVAL
 304
 305 LDAP_END_DECL
 306
 307 #endif /* _LDAP_THREAD_H */