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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 #include <windows.h>
 124 #include <process.h>
 125
 126 LDAP_BEGIN_DECL
 127
 128 typedef HANDLE                  ldap_pvt_thread_t;
 129 typedef HANDLE                  ldap_pvt_thread_mutex_t;
 130 typedef HANDLE                  ldap_pvt_thread_cond_t;
 131
 132 LDAP_END_DECL
 133
 134 #else
 135
 136 /***********************************
 137  *                                 *
 138  * thread definitions for no       *
 139  * underlying library support      *
 140  *                                 *
 141  ***********************************/
 142
 143 LDAP_BEGIN_DECL
 144
 145 #ifndef NO_THREADS
 146 #define NO_THREADS 1
 147 #endif
 148
 149 typedef int                     ldap_pvt_thread_t;
 150 typedef int                     ldap_pvt_thread_mutex_t;
 151 typedef int                     ldap_pvt_thread_cond_t;
 152
 153 LDAP_END_DECL
 154
 155 #endif /* no threads support */
 156
 157 #ifndef NO_THREADS
 158 #       define HAVE_THREADS 1
 159
 160 #endif
 161
 162 LDAP_BEGIN_DECL
 163
 164 LDAP_F int
 165 ldap_pvt_thread_initialize LDAP_P(( void ));
 166 LDAP_F int
 167 ldap_pvt_thread_destroy LDAP_P(( void ));
 168
 169 LDAP_F unsigned int
 170 ldap_pvt_thread_sleep LDAP_P(( unsigned int s ));
 171
 172 #ifdef HAVE_GETCONCURRENCY
 173 LDAP_F int
 174 ldap_pvt_thread_get_concurrency LDAP_P(( void ));
 175 #endif
 176 #ifdef HAVE_SETCONCURRENCY
 177 #       ifndef LDAP_THREAD_CONCURRENCY
 178         /* three concurrent threads should be enough */
 179 #       define LDAP_THREAD_CONCURRENCY  3
 180 #       endif
 181 LDAP_F int
 182 ldap_pvt_thread_set_concurrency LDAP_P(( int ));
 183 #endif
 184
 185 #define LDAP_PVT_THREAD_CREATE_JOINABLE 0
 186 #define LDAP_PVT_THREAD_CREATE_DETACHED 1
 187
 188 LDAP_F int
 189 ldap_pvt_thread_create LDAP_P((
 190         ldap_pvt_thread_t * thread,
 191         int     detach,
 192         void *(*start_routine)( void * ),
 193         void *arg));
 194
 195 LDAP_F void
 196 ldap_pvt_thread_exit LDAP_P(( void *retval ));
 197
 198 LDAP_F int
 199 ldap_pvt_thread_join LDAP_P(( ldap_pvt_thread_t thread, void **status ));
 200
 201 LDAP_F int
 202 ldap_pvt_thread_kill LDAP_P(( ldap_pvt_thread_t thread, int signo ));
 203
 204 LDAP_F int
 205 ldap_pvt_thread_yield LDAP_P(( void ));
 206
 207 LDAP_F int
 208 ldap_pvt_thread_cond_init LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 209
 210 LDAP_F int
 211 ldap_pvt_thread_cond_destroy LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 212
 213 LDAP_F int
 214 ldap_pvt_thread_cond_signal LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 215
 216 LDAP_F int
 217 ldap_pvt_thread_cond_broadcast LDAP_P(( ldap_pvt_thread_cond_t *cond ));
 218
 219 LDAP_F int
 220 ldap_pvt_thread_cond_wait LDAP_P((
 221         ldap_pvt_thread_cond_t *cond,
 222         ldap_pvt_thread_mutex_t *mutex ));
 223
 224 LDAP_F int
 225 ldap_pvt_thread_mutex_init LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 226
 227 LDAP_F int
 228 ldap_pvt_thread_mutex_destroy LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 229
 230 LDAP_F int
 231 ldap_pvt_thread_mutex_lock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 232
 233 LDAP_F int
 234 ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 235
 236 LDAP_F int
 237 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 238
 239 typedef struct ldap_pvt_thread_rdwr_var {
 240         ldap_pvt_thread_mutex_t ltrw_mutex;
 241         ldap_pvt_thread_cond_t ltrw_read;       /* wait for read */
 242         ldap_pvt_thread_cond_t ltrw_write;      /* wait for write */
 243         int ltrw_valid;
 244 #define LDAP_PVT_THREAD_RDWR_VALID 0x0bad
 245         int ltrw_r_active;
 246         int ltrw_w_active;
 247         int ltrw_r_wait;
 248         int ltrw_w_wait;
 249 } ldap_pvt_thread_rdwr_t;
 250
 251 LDAP_F int
 252 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 253 LDAP_F int
 254 ldap_pvt_thread_rdwr_destroy LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 255 LDAP_F int
 256 ldap_pvt_thread_rdwr_rlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 257 LDAP_F int
 258 ldap_pvt_thread_rdwr_rtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 259 LDAP_F int
 260 ldap_pvt_thread_rdwr_runlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 261 LDAP_F int
 262 ldap_pvt_thread_rdwr_wlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 263 LDAP_F int
 264 ldap_pvt_thread_rdwr_wtrylock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 265 LDAP_F int
 266 ldap_pvt_thread_rdwr_wunlock LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 267
 268 #ifdef LDAP_DEBUG
 269 LDAP_F int
 270 ldap_pvt_thread_rdwr_readers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 271 LDAP_F int
 272 ldap_pvt_thread_rdwr_writers LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 273 LDAP_F int
 274 ldap_pvt_thread_rdwr_active LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
 275 #endif /* LDAP_DEBUG */
 276
 277 #define LDAP_PVT_THREAD_EINVAL EINVAL
 278 #define LDAP_PVT_THREAD_EBUSY EINVAL
 279
 280 LDAP_END_DECL
 281
 282 #endif /* _LDAP_THREAD_H */