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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_THR )
  71 /********************************************
  72  *                                          *
  73  * thread definitions for Solaris LWP (THR) *
  74  *                                          *
  75  ********************************************/
  76
  77 #include <thread.h>
  78 #include <synch.h>
  79
  80 LDAP_BEGIN_DECL
  81
  82 typedef thread_t                ldap_pvt_thread_t;
  83 typedef mutex_t                 ldap_pvt_thread_mutex_t;
  84 typedef cond_t                  ldap_pvt_thread_cond_t;
  85
  86 #define HAVE_REENTRANT_FUNCTIONS 1
  87
  88 #ifdef HAVE_THR_GETCONCURRENCY
  89 #define HAVE_GETCONCURRENCY 1
  90 #endif
  91 #ifdef HAVE_THR_SETCONCURRENCY
  92 #define HAVE_SETCONCURRENCY 1
  93 #endif
  94
  95 LDAP_END_DECL
  96
  97 #elif defined( HAVE_LWP )
  98 /*************************************
  99  *                                   *
 100  * thread definitions for SunOS LWP  *
 101  *                                   *
 102  *************************************/
 103
 104 #include <lwp/lwp.h>
 105 #include <lwp/stackdep.h>
 106
 107 LDAP_BEGIN_DECL
 108
 109 typedef thread_t                ldap_pvt_thread_t;
 110 typedef mon_t                   ldap_pvt_thread_mutex_t;
 111 struct ldap_pvt_thread_lwp_cv {
 112         int             lcv_created;
 113         cv_t            lcv_cv;
 114 };
 115 typedef struct ldap_pvt_thread_lwp_cv ldap_pvt_thread_cond_t;
 116
 117 #define HAVE_REENTRANT_FUNCTIONS 1
 118
 119 LDAP_END_DECL
 120
 121 #elif HAVE_NT_THREADS
 122
 123 LDAP_BEGIN_DECL
 124
 125 #define WIN32_LEAN_AND_MEAN
 126 #include <process.h>
 127 #include <windows.h>
 128
 129 typedef unsigned long   ldap_pvt_thread_t;
 130 typedef HANDLE  ldap_pvt_thread_mutex_t;
 131 typedef HANDLE  ldap_pvt_thread_cond_t;
 132
 133 LDAP_END_DECL
 134
 135 #else
 136
 137 /***********************************
 138  *                                 *
 139  * thread definitions for no       *
 140  * underlying library support      *
 141  *                                 *
 142  ***********************************/
 143
 144 LDAP_BEGIN_DECL
 145
 146 #ifndef NO_THREADS
 147 #define NO_THREADS 1
 148 #endif
 149
 150 typedef int                     ldap_pvt_thread_t;
 151 typedef int                     ldap_pvt_thread_mutex_t;
 152 typedef int                     ldap_pvt_thread_cond_t;
 153
 154 LDAP_END_DECL
 155
 156 #endif /* no threads support */
 157
 158 #ifndef NO_THREADS
 159 #       define HAVE_THREADS 1
 160 #endif
 161
 162 LDAP_BEGIN_DECL
 163
 164 LDAP_F( int )
 165 ldap_pvt_thread_initialize LDAP_P(( void ));
 166
 167 LDAP_F( int )
 168 ldap_pvt_thread_destroy LDAP_P(( void ));
 169
 170 LDAP_F( unsigned int )
 171 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 172
 173 #ifdef HAVE_GETCONCURRENCY
 174 LDAP_F( int )
 175 ldap_pvt_thread_get_concurrency LDAP_P(( void ));
 176 #endif
 177
 178 #ifdef HAVE_SETCONCURRENCY
 179 #       ifndef LDAP_THREAD_CONCURRENCY
 180         /* three concurrent threads should be enough */
 181 #       define LDAP_THREAD_CONCURRENCY  3
 182 #       endif
 183 LDAP_F( int )
 184 ldap_pvt_thread_set_concurrency LDAP_P(( int ));
 185 #endif
 186
 187 #define LDAP_PVT_THREAD_CREATE_JOINABLE 0
 188 #define LDAP_PVT_THREAD_CREATE_DETACHED 1
 189
 190 LDAP_F( int )
 191 ldap_pvt_thread_create LDAP_P((
 192         ldap_pvt_thread_t * thread,
 193         int     detach,
 194         void *(*start_routine)( void * ),
 195         void *arg));
 196
 197 LDAP_F( void )
 198 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 199
 200 LDAP_F( int )
 201 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 202
 203 LDAP_F( int )
 204 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 205
 206 LDAP_F( int )
 207 ldap_pvt_thread_yield LDAP_P(( void ));
 208
 209 LDAP_F( int )
 210 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 211
 212 LDAP_F( int )
 213 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 214
 215 LDAP_F( int )
 216 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 217
 218 LDAP_F( int )
 219 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 220
 221 LDAP_F( int )
 222 ldap_pvt_thread_cond_wait LDAP_P((
 223         ldap_pvt_thread_cond_t *cond,
 224         ldap_pvt_thread_mutex_t *mutex ));
 225
 226 LDAP_F( int )
 227 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 228
 229 LDAP_F( int )
 230 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 231
 232 LDAP_F( int )
 233 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 234
 235 LDAP_F( int )
 236 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 237
 238 LDAP_F( int )
 239 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 240
 241 typedef struct ldap_pvt_thread_rdwr_var {
 242         ldap_pvt_thread_mutex_t ltrw_mutex;
 243         ldap_pvt_thread_cond_t ltrw_read;       /* wait for read */
 244         ldap_pvt_thread_cond_t ltrw_write;      /* wait for write */
 245         int ltrw_valid;
 246 #define LDAP_PVT_THREAD_RDWR_VALID 0x0bad
 247         int ltrw_r_active;
 248         int ltrw_w_active;
 249         int ltrw_r_wait;
 250         int ltrw_w_wait;
 251 } ldap_pvt_thread_rdwr_t;
 252
 253 LDAP_F( int )
 254 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 255
 256 LDAP_F( int )
 257 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 258
 259 LDAP_F( int )
 260 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 261
 262 LDAP_F( int )
 263 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 264
 265 LDAP_F( int )
 266 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 267
 268 LDAP_F( int )
 269 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 270
 271 LDAP_F( int )
 272 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 273
 274 LDAP_F( int )
 275 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 276
 277 #ifdef LDAP_DEBUG
 278 LDAP_F( int )
 279 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 280
 281 LDAP_F( int )
 282 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 283
 284 LDAP_F( int )
 285 ldap_pvt_thread_rdwr_active LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 286 #endif /* LDAP_DEBUG */
 287
 288 #define LDAP_PVT_THREAD_EINVAL EINVAL
 289 #define LDAP_PVT_THREAD_EBUSY EINVAL
 290
 291 LDAP_END_DECL
 292
 293 #endif /* _LDAP_THREAD_H */