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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 #define PTH_SYSCALL_SOFT 1
  79 #include <pth.h>
  80
  81 LDAP_BEGIN_DECL
  82
  83 typedef pth_t           ldap_pvt_thread_t;
  84 typedef pth_mutex_t     ldap_pvt_thread_mutex_t;
  85 typedef pth_cond_t      ldap_pvt_thread_cond_t;
  86
  87 LDAP_END_DECL
  88
  89
  90 #elif defined( HAVE_THR )
  91 /********************************************
  92  *                                          *
  93  * thread definitions for Solaris LWP (THR) *
  94  *                                          *
  95  ********************************************/
  96
  97 #include <thread.h>
  98 #include <synch.h>
  99
 100 LDAP_BEGIN_DECL
 101
 102 typedef thread_t                ldap_pvt_thread_t;
 103 typedef mutex_t                 ldap_pvt_thread_mutex_t;
 104 typedef cond_t                  ldap_pvt_thread_cond_t;
 105
 106 #define HAVE_REENTRANT_FUNCTIONS 1
 107
 108 #ifdef HAVE_THR_GETCONCURRENCY
 109 #define HAVE_GETCONCURRENCY 1
 110 #endif
 111 #ifdef HAVE_THR_SETCONCURRENCY
 112 #define HAVE_SETCONCURRENCY 1
 113 #endif
 114
 115 LDAP_END_DECL
 116
 117 #elif defined( HAVE_LWP )
 118 /*************************************
 119  *                                   *
 120  * thread definitions for SunOS LWP  *
 121  *                                   *
 122  *************************************/
 123
 124 #include <lwp/lwp.h>
 125 #include <lwp/stackdep.h>
 126
 127 LDAP_BEGIN_DECL
 128
 129 typedef thread_t                ldap_pvt_thread_t;
 130 typedef mon_t                   ldap_pvt_thread_mutex_t;
 131 struct ldap_pvt_thread_lwp_cv {
 132         int             lcv_created;
 133         cv_t            lcv_cv;
 134 };
 135 typedef struct ldap_pvt_thread_lwp_cv ldap_pvt_thread_cond_t;
 136
 137 #define HAVE_REENTRANT_FUNCTIONS 1
 138
 139 LDAP_END_DECL
 140
 141 #elif defined(HAVE_NT_THREADS)
 142
 143 LDAP_BEGIN_DECL
 144
 145 #include <process.h>
 146 #include <windows.h>
 147
 148 typedef unsigned long   ldap_pvt_thread_t;
 149 typedef HANDLE  ldap_pvt_thread_mutex_t;
 150 typedef HANDLE  ldap_pvt_thread_cond_t;
 151
 152 LDAP_END_DECL
 153
 154 #else
 155
 156 /***********************************
 157  *                                 *
 158  * thread definitions for no       *
 159  * underlying library support      *
 160  *                                 *
 161  ***********************************/
 162
 163 LDAP_BEGIN_DECL
 164
 165 #ifndef NO_THREADS
 166 #define NO_THREADS 1
 167 #endif
 168
 169 typedef int                     ldap_pvt_thread_t;
 170 typedef int                     ldap_pvt_thread_mutex_t;
 171 typedef int                     ldap_pvt_thread_cond_t;
 172
 173 LDAP_END_DECL
 174
 175 #endif /* no threads support */
 176
 177 LDAP_BEGIN_DECL
 178
 179 LIBLDAP_F( int )
 180 ldap_pvt_thread_initialize LDAP_P(( void ));
 181
 182 LIBLDAP_F( int )
 183 ldap_pvt_thread_destroy LDAP_P(( void ));
 184
 185 LIBLDAP_F( unsigned int )
 186 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 187
 188 #ifdef HAVE_GETCONCURRENCY
 189 LIBLDAP_F( int )
 190 ldap_pvt_thread_get_concurrency LDAP_P(( void ));
 191 #endif
 192
 193 #ifdef HAVE_SETCONCURRENCY
 194 #       ifndef LDAP_THREAD_CONCURRENCY
 195         /* three concurrent threads should be enough */
 196 #       define LDAP_THREAD_CONCURRENCY  3
 197 #       endif
 198 LIBLDAP_F( int )
 199 ldap_pvt_thread_set_concurrency LDAP_P(( int ));
 200 #endif
 201
 202 #define LDAP_PVT_THREAD_CREATE_JOINABLE 0
 203 #define LDAP_PVT_THREAD_CREATE_DETACHED 1
 204
 205 LIBLDAP_F( int )
 206 ldap_pvt_thread_create LDAP_P((
 207         ldap_pvt_thread_t * thread,
 208         int     detach,
 209         void *(*start_routine)( void * ),
 210         void *arg));
 211
 212 LIBLDAP_F( void )
 213 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 214
 215 LIBLDAP_F( int )
 216 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 217
 218 LIBLDAP_F( int )
 219 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 220
 221 LIBLDAP_F( int )
 222 ldap_pvt_thread_yield LDAP_P(( void ));
 223
 224 LIBLDAP_F( int )
 225 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 226
 227 LIBLDAP_F( int )
 228 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 229
 230 LIBLDAP_F( int )
 231 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 232
 233 LIBLDAP_F( int )
 234 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 235
 236 LIBLDAP_F( int )
 237 ldap_pvt_thread_cond_wait LDAP_P((
 238         ldap_pvt_thread_cond_t *cond,
 239         ldap_pvt_thread_mutex_t *mutex ));
 240
 241 LIBLDAP_F( int )
 242 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 243
 244 LIBLDAP_F( int )
 245 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 246
 247 LIBLDAP_F( int )
 248 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 249
 250 LIBLDAP_F( int )
 251 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 252
 253 LIBLDAP_F( int )
 254 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 255
 256 typedef struct ldap_pvt_thread_rdwr_var {
 257         ldap_pvt_thread_mutex_t ltrw_mutex;
 258         ldap_pvt_thread_cond_t ltrw_read;       /* wait for read */
 259         ldap_pvt_thread_cond_t ltrw_write;      /* wait for write */
 260         int ltrw_valid;
 261 #define LDAP_PVT_THREAD_RDWR_VALID 0x0bad
 262         int ltrw_r_active;
 263         int ltrw_w_active;
 264         int ltrw_r_wait;
 265         int ltrw_w_wait;
 266 } ldap_pvt_thread_rdwr_t;
 267
 268 LIBLDAP_F( int )
 269 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 270
 271 LIBLDAP_F( int )
 272 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 273
 274 LIBLDAP_F( int )
 275 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 276
 277 LIBLDAP_F( int )
 278 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 279
 280 LIBLDAP_F( int )
 281 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 282
 283 LIBLDAP_F( int )
 284 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 285
 286 LIBLDAP_F( int )
 287 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 288
 289 LIBLDAP_F( int )
 290 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 291
 292 #ifdef LDAP_DEBUG
 293 LIBLDAP_F( int )
 294 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 295
 296 LIBLDAP_F( int )
 297 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 298
 299 LIBLDAP_F( int )
 300 ldap_pvt_thread_rdwr_active LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 301 #endif /* LDAP_DEBUG */
 302
 303 #define LDAP_PVT_THREAD_EINVAL EINVAL
 304 #define LDAP_PVT_THREAD_EBUSY EINVAL
 305
 306 LDAP_END_DECL
 307
 308 #endif /* _LDAP_THREAD_H */