libguile/threads-plugin.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_THREADS_PLUGIN_H
   4 #define SCM_THREADS_PLUGIN_H
   5
   6 /* Copyright (C) 1996,1997,1998,2000,2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21  */
  22
  23 \f
  24 #include <pthread.h> /* This file should *not* need to include pthread.h */
  25
  26 /* Size is checked in scm_init_threads_plugin.
  27    For reference, sizes encountered include,
  28        powerpc-apple-darwin5.5 pthread_mutex_t    44 bytes
  29  */
  30 #define SCM_MUTEX_MAXSIZE (12 * sizeof (long))
  31 typedef struct { char _[SCM_MUTEX_MAXSIZE]; } scm_t_mutex;
  32
  33 /*fixme* Should be defined similarly to scm_t_mutex. */
  34 #define scm_t_mutexattr pthread_mutexattr_t
  35
  36 extern int scm_i_plugin_mutex_size;
  37 typedef int (*scm_t_mutex_init) (scm_t_mutex *, const scm_t_mutexattr *);
  38 typedef int (*scm_t_mutex_lock) (scm_t_mutex *);
  39 typedef int (*scm_t_mutex_unlock) (scm_t_mutex *);
  40 extern scm_t_mutex_init scm_i_plugin_mutex_init;
  41 extern scm_t_mutex_lock scm_i_plugin_mutex_lock;
  42 extern scm_t_mutex_unlock scm_i_plugin_mutex_unlock;
  43
  44 /* Size is checked in scm_init_threads_plugin */
  45 #define SCM_REC_MUTEX_MAXSIZE (SCM_MUTEX_MAXSIZE + 3 * sizeof (long))
  46 typedef struct { char _[SCM_REC_MUTEX_MAXSIZE]; } scm_t_rec_mutex;
  47
  48 extern int scm_i_plugin_rec_mutex_size;
  49 typedef int (*scm_t_rec_mutex_init) (scm_t_rec_mutex *,
  50                                            const scm_t_mutexattr *);
  51 typedef int (*scm_t_rec_mutex_destroy) (scm_t_rec_mutex *);
  52 typedef int (*scm_t_rec_mutex_lock) (scm_t_rec_mutex *);
  53 typedef int (*scm_t_rec_mutex_trylock) (scm_t_rec_mutex *);
  54 typedef int (*scm_t_rec_mutex_unlock) (scm_t_rec_mutex *);
  55 extern scm_t_rec_mutex_init scm_i_plugin_rec_mutex_init;
  56 extern scm_t_rec_mutex_destroy scm_i_plugin_rec_mutex_destroy;
  57 extern scm_t_rec_mutex_lock scm_i_plugin_rec_mutex_lock;
  58 extern scm_t_rec_mutex_trylock scm_i_plugin_rec_mutex_trylock;
  59 extern scm_t_rec_mutex_unlock scm_i_plugin_rec_mutex_unlock;
  60
  61 /*fixme*/
  62 #define scm_t_cond                      pthread_cond_t
  63
  64 typedef int (*scm_t_cond_wait) (scm_t_cond *, scm_t_mutex *);
  65 typedef int (*scm_t_cond_timedwait) (scm_t_cond *,
  66                                      scm_t_mutex *,
  67                                      const scm_t_timespec *);
  68 extern scm_t_cond_wait scm_i_plugin_cond_wait;
  69 extern scm_t_cond_timedwait scm_i_plugin_cond_timedwait;
  70
  71 extern void scm_init_threads_plugin (void);
  72
  73 #endif  /* SCM_THREADS_PLUGIN_H */
  74
  75 /*
  76   Local Variables:
  77   c-file-style: "gnu"
  78   End:
  79 */