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   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 /* ldap_pvt_thread.h - ldap threads header file NG */
  11
  12 #ifndef _LDAP_PVT_THREAD_H
  13 #define _LDAP_PVT_THREAD_H
  14
  15 #include "ldap_cdefs.h"
  16
  17 #if defined( HAVE_PTHREADS )
  18 /**********************************
  19  *                                *
  20  * definitions for POSIX Threads  *
  21  *                                *
  22  **********************************/
  23
  24 #include <pthread.h>
  25 #ifdef HAVE_SCHED_H
  26 #include <sched.h>
  27 #endif
  28
  29 LDAP_BEGIN_DECL
  30
  31 typedef pthread_t               ldap_pvt_thread_t;
  32 typedef pthread_mutex_t         ldap_pvt_thread_mutex_t;
  33 typedef pthread_cond_t          ldap_pvt_thread_cond_t;
  34
  35 #if defined( _POSIX_REENTRANT_FUNCTIONS ) || \
  36         defined( _POSIX_THREAD_SAFE_FUNCTIONS ) || \
  37         defined( _POSIX_THREADSAFE_FUNCTIONS )
  38 #define HAVE_REENTRANT_FUNCTIONS 1
  39 #endif
  40
  41 #if defined( HAVE_PTHREAD_GETCONCURRENCY ) || \
  42         defined( HAVE_THR_GETCONCURRENCY )
  43 #define HAVE_GETCONCURRENCY 1
  44 #endif
  45
  46 #if defined( HAVE_PTHREAD_SETCONCURRENCY ) || \
  47         defined( HAVE_THR_SETCONCURRENCY )
  48 #define HAVE_SETCONCURRENCY 1
  49 #endif
  50
  51 LDAP_END_DECL
  52
  53 #elif defined ( HAVE_MACH_CTHREADS )
  54 /**********************************
  55  *                                *
  56  * definitions for Mach CThreads  *
  57  *                                *
  58  **********************************/
  59
  60 #include <mach/cthreads.h>
  61
  62 LDAP_BEGIN_DECL
  63
  64 typedef cthread_t               ldap_pvt_thread_t;
  65 typedef struct mutex            ldap_pvt_thread_mutex_t;
  66 typedef struct condition        ldap_pvt_thread_cond_t;
  67
  68 LDAP_END_DECL
  69
  70 #elif defined( HAVE_GNU_PTH )
  71 /***********************************
  72  *                                 *
  73  * thread definitions for GNU Pth  *
  74  *                                 *
  75  ***********************************/
  76
  77 #include <pth.h>
  78
  79 LDAP_BEGIN_DECL
  80
  81 typedef pth_t           ldap_pvt_thread_t;
  82 typedef pth_mutex_t     ldap_pvt_thread_mutex_t;
  83 typedef pth_cond_t      ldap_pvt_thread_cond_t;
  84
  85 LDAP_END_DECL
  86
  87
  88 #elif defined( HAVE_THR )
  89 /********************************************
  90  *                                          *
  91  * thread definitions for Solaris LWP (THR) *
  92  *                                          *
  93  ********************************************/
  94
  95 #include <thread.h>
  96 #include <synch.h>
  97
  98 LDAP_BEGIN_DECL
  99
 100 typedef thread_t                ldap_pvt_thread_t;
 101 typedef mutex_t                 ldap_pvt_thread_mutex_t;
 102 typedef cond_t                  ldap_pvt_thread_cond_t;
 103
 104 #define HAVE_REENTRANT_FUNCTIONS 1
 105
 106 #ifdef HAVE_THR_GETCONCURRENCY
 107 #define HAVE_GETCONCURRENCY 1
 108 #endif
 109 #ifdef HAVE_THR_SETCONCURRENCY
 110 #define HAVE_SETCONCURRENCY 1
 111 #endif
 112
 113 LDAP_END_DECL
 114
 115 #elif defined( HAVE_LWP )
 116 /*************************************
 117  *                                   *
 118  * thread definitions for SunOS LWP  *
 119  *                                   *
 120  *************************************/
 121
 122 #include <lwp/lwp.h>
 123 #include <lwp/stackdep.h>
 124
 125 LDAP_BEGIN_DECL
 126
 127 typedef thread_t                ldap_pvt_thread_t;
 128 typedef mon_t                   ldap_pvt_thread_mutex_t;
 129 struct ldap_pvt_thread_lwp_cv {
 130         int             lcv_created;
 131         cv_t            lcv_cv;
 132 };
 133 typedef struct ldap_pvt_thread_lwp_cv ldap_pvt_thread_cond_t;
 134
 135 #define HAVE_REENTRANT_FUNCTIONS 1
 136
 137 LDAP_END_DECL
 138
 139 #elif HAVE_NT_THREADS
 140
 141 LDAP_BEGIN_DECL
 142
 143 #define WIN32_LEAN_AND_MEAN
 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 LDAP_F( int )
 179 ldap_pvt_thread_initialize LDAP_P(( void ));
 180
 181 LDAP_F( int )
 182 ldap_pvt_thread_destroy LDAP_P(( void ));
 183
 184 LDAP_F( unsigned int )
 185 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 186
 187 #ifdef HAVE_GETCONCURRENCY
 188 LDAP_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 LDAP_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 LDAP_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 LDAP_F( void )
 212 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 213
 214 LDAP_F( int )
 215 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 216
 217 LDAP_F( int )
 218 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 219
 220 LDAP_F( int )
 221 ldap_pvt_thread_yield LDAP_P(( void ));
 222
 223 LDAP_F( int )
 224 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 225
 226 LDAP_F( int )
 227 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 228
 229 LDAP_F( int )
 230 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 231
 232 LDAP_F( int )
 233 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 234
 235 LDAP_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 LDAP_F( int )
 241 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 242
 243 LDAP_F( int )
 244 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 245
 246 LDAP_F( int )
 247 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 248
 249 LDAP_F( int )
 250 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 251
 252 LDAP_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 LDAP_F( int )
 268 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 269
 270 LDAP_F( int )
 271 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 272
 273 LDAP_F( int )
 274 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 275
 276 LDAP_F( int )
 277 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 278
 279 LDAP_F( int )
 280 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 281
 282 LDAP_F( int )
 283 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 284
 285 LDAP_F( int )
 286 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 287
 288 LDAP_F( int )
 289 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 290
 291 #ifdef LDAP_DEBUG
 292 LDAP_F( int )
 293 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 294
 295 LDAP_F( int )
 296 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 297
 298 LDAP_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 */