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   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998,1999 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 /* If we're in the NT env at all, we want these defs, threaded or not */
 141 #elif defined(WINNT) || defined(_WINNT) || defined(_WIN32) /* HAVE_NT_THREADS */
 142
 143 LDAP_BEGIN_DECL
 144
 145 #define WIN32_LEAN_AND_MEAN
 146 #include <process.h>
 147 #include <windows.h>
 148
 149 typedef unsigned long   ldap_pvt_thread_t;
 150 typedef HANDLE  ldap_pvt_thread_mutex_t;
 151 typedef HANDLE  ldap_pvt_thread_cond_t;
 152
 153 LDAP_END_DECL
 154
 155 #else
 156
 157 /***********************************
 158  *                                 *
 159  * thread definitions for no       *
 160  * underlying library support      *
 161  *                                 *
 162  ***********************************/
 163
 164 LDAP_BEGIN_DECL
 165
 166 #ifndef NO_THREADS
 167 #define NO_THREADS 1
 168 #endif
 169
 170 typedef int                     ldap_pvt_thread_t;
 171 typedef int                     ldap_pvt_thread_mutex_t;
 172 typedef int                     ldap_pvt_thread_cond_t;
 173
 174 LDAP_END_DECL
 175
 176 #endif /* no threads support */
 177
 178 LDAP_BEGIN_DECL
 179
 180 #ifdef __MINGW32__
 181 #   undef LDAP_F_PRE
 182 #   ifdef LIBLDAP_DECL
 183 #       define LDAP_F_PRE       extern __declspec(LIBLDAP_DECL)
 184 #   else
 185 #       define LDAP_F_PRE       extern
 186 #   endif
 187 #endif
 188
 189 LDAP_F( int )
 190 ldap_pvt_thread_initialize LDAP_P(( void ));
 191
 192 LDAP_F( int )
 193 ldap_pvt_thread_destroy LDAP_P(( void ));
 194
 195 LDAP_F( unsigned int )
 196 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 197
 198 #ifdef HAVE_GETCONCURRENCY
 199 LDAP_F( int )
 200 ldap_pvt_thread_get_concurrency LDAP_P(( void ));
 201 #endif
 202
 203 #ifdef HAVE_SETCONCURRENCY
 204 #       ifndef LDAP_THREAD_CONCURRENCY
 205         /* three concurrent threads should be enough */
 206 #       define LDAP_THREAD_CONCURRENCY  3
 207 #       endif
 208 LDAP_F( int )
 209 ldap_pvt_thread_set_concurrency LDAP_P(( int ));
 210 #endif
 211
 212 #define LDAP_PVT_THREAD_CREATE_JOINABLE 0
 213 #define LDAP_PVT_THREAD_CREATE_DETACHED 1
 214
 215 LDAP_F( int )
 216 ldap_pvt_thread_create LDAP_P((
 217         ldap_pvt_thread_t * thread,
 218         int     detach,
 219         void *(*start_routine)( void * ),
 220         void *arg));
 221
 222 LDAP_F( void )
 223 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 224
 225 LDAP_F( int )
 226 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 227
 228 LDAP_F( int )
 229 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 230
 231 LDAP_F( int )
 232 ldap_pvt_thread_yield LDAP_P(( void ));
 233
 234 LDAP_F( int )
 235 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 236
 237 LDAP_F( int )
 238 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 239
 240 LDAP_F( int )
 241 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 242
 243 LDAP_F( int )
 244 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 245
 246 LDAP_F( int )
 247 ldap_pvt_thread_cond_wait LDAP_P((
 248         ldap_pvt_thread_cond_t *cond,
 249         ldap_pvt_thread_mutex_t *mutex ));
 250
 251 LDAP_F( int )
 252 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 253
 254 LDAP_F( int )
 255 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 256
 257 LDAP_F( int )
 258 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 259
 260 LDAP_F( int )
 261 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 262
 263 LDAP_F( int )
 264 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 265
 266 typedef struct ldap_pvt_thread_rdwr_var {
 267         ldap_pvt_thread_mutex_t ltrw_mutex;
 268         ldap_pvt_thread_cond_t ltrw_read;       /* wait for read */
 269         ldap_pvt_thread_cond_t ltrw_write;      /* wait for write */
 270         int ltrw_valid;
 271 #define LDAP_PVT_THREAD_RDWR_VALID 0x0bad
 272         int ltrw_r_active;
 273         int ltrw_w_active;
 274         int ltrw_r_wait;
 275         int ltrw_w_wait;
 276 } ldap_pvt_thread_rdwr_t;
 277
 278 LDAP_F( int )
 279 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 280
 281 LDAP_F( int )
 282 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 283
 284 LDAP_F( int )
 285 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 286
 287 LDAP_F( int )
 288 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 289
 290 LDAP_F( int )
 291 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 292
 293 LDAP_F( int )
 294 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 295
 296 LDAP_F( int )
 297 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 298
 299 LDAP_F( int )
 300 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 301
 302 #ifdef LDAP_DEBUG
 303 LDAP_F( int )
 304 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 305
 306 LDAP_F( int )
 307 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 308
 309 LDAP_F( int )
 310 ldap_pvt_thread_rdwr_active LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 311 #endif /* LDAP_DEBUG */
 312
 313 #define LDAP_PVT_THREAD_EINVAL EINVAL
 314 #define LDAP_PVT_THREAD_EBUSY EINVAL
 315
 316 LDAP_END_DECL
 317
 318 #endif /* _LDAP_THREAD_H */