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7bfd3b9e JB |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef THREADSH | |
4 | #define THREADSH | |
5 | ||
d90ca38d | 6 | /* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. |
7bfd3b9e JB |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program 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 | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
20 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
21 | * Boston, MA 02111-1307 USA | |
7bfd3b9e JB |
22 | * |
23 | * As a special exception, the Free Software Foundation gives permission | |
24 | * for additional uses of the text contained in its release of GUILE. | |
25 | * | |
26 | * The exception is that, if you link the GUILE library with other files | |
27 | * to produce an executable, this does not by itself cause the | |
28 | * resulting executable to be covered by the GNU General Public License. | |
29 | * Your use of that executable is in no way restricted on account of | |
30 | * linking the GUILE library code into it. | |
31 | * | |
32 | * This exception does not however invalidate any other reasons why | |
33 | * the executable file might be covered by the GNU General Public License. | |
34 | * | |
35 | * This exception applies only to the code released by the | |
36 | * Free Software Foundation under the name GUILE. If you copy | |
37 | * code from other Free Software Foundation releases into a copy of | |
38 | * GUILE, as the General Public License permits, the exception does | |
39 | * not apply to the code that you add in this way. To avoid misleading | |
40 | * anyone as to the status of such modified files, you must delete | |
41 | * this exception notice from them. | |
42 | * | |
43 | * If you write modifications of your own for GUILE, it is your choice | |
44 | * whether to permit this exception to apply to your modifications. | |
82892bed | 45 | * If you do not wish that, delete this exception notice. */ |
d3a6bc94 GB |
46 | |
47 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
48 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
7bfd3b9e JB |
49 | \f |
50 | ||
51 | #include "libguile/__scm.h" | |
52 | #include "libguile/procs.h" | |
53 | ||
54 | /* smob tags for the thread datatypes */ | |
55 | extern long scm_tc16_thread; | |
56 | extern long scm_tc16_mutex; | |
57 | extern long scm_tc16_condvar; | |
58 | ||
d3a6bc94 | 59 | #define SCM_THREADP(obj) (SCM_NIMP(obj) && (scm_tc16_thread == SCM_TYP16 (obj))) |
7bfd3b9e JB |
60 | #define SCM_THREAD_DATA(obj) ((void *) SCM_CDR (obj)) |
61 | ||
d3a6bc94 | 62 | #define SCM_MUTEXP(obj) (SCM_NIMP(obj) && (scm_tc16_mutex == SCM_TYP16 (obj))) |
7bfd3b9e JB |
63 | #define SCM_MUTEX_DATA(obj) ((void *) SCM_CDR (obj)) |
64 | ||
d3a6bc94 | 65 | #define SCM_CONDVARP(obj) (SCM_NIMP(obj) && (scm_tc16_condvar == SCM_TYP16 (obj))) |
7bfd3b9e JB |
66 | #define SCM_CONDVAR_DATA(obj) ((void *) SCM_CDR (obj)) |
67 | ||
68 | /* Initialize implementation specific details of the threads support */ | |
7866a09b GB |
69 | void scm_threads_init (SCM_STACKITEM *); |
70 | void scm_threads_mark_stacks (void); | |
71 | void scm_init_threads (SCM_STACKITEM *); | |
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72 | |
73 | /* */ | |
7866a09b GB |
74 | SCM scm_threads_make_mutex (void); |
75 | SCM scm_threads_lock_mutex (SCM); | |
76 | SCM scm_threads_unlock_mutex (SCM); | |
77 | SCM scm_threads_monitor (void); | |
7bfd3b9e | 78 | |
df366c26 MD |
79 | SCM scm_spawn_thread (scm_catch_body_t body, void *body_data, |
80 | scm_catch_handler_t handler, void *handler_data); | |
81 | ||
b74f4728 JB |
82 | /* These are versions of the ordinary sleep and usleep functions, |
83 | that play nicely with the thread system. */ | |
dd195c93 MD |
84 | unsigned long scm_thread_sleep (unsigned long); |
85 | unsigned long scm_thread_usleep (unsigned long); | |
b74f4728 JB |
86 | |
87 | ||
6d71500e JB |
88 | /* The C versions of the Scheme-visible thread functions. */ |
89 | #ifdef USE_COOP_THREADS | |
90 | extern SCM scm_single_thread_p (void); | |
91 | #endif | |
92 | extern SCM scm_yield (void); | |
93 | extern SCM scm_call_with_new_thread (SCM argl); | |
94 | extern SCM scm_join_thread (SCM t); | |
95 | extern SCM scm_make_mutex (void); | |
96 | extern SCM scm_lock_mutex (SCM m); | |
97 | extern SCM scm_unlock_mutex (SCM m); | |
98 | extern SCM scm_make_condition_variable (void); | |
99 | extern SCM scm_wait_condition_variable (SCM cond, SCM mutex); | |
100 | extern SCM scm_signal_condition_variable (SCM cond); | |
101 | ||
7bfd3b9e JB |
102 | #if 0 |
103 | /* These don't work any more. */ | |
104 | #ifdef USE_MIT_PTHREADS | |
105 | #include "mit-pthreads.h" | |
106 | #endif | |
107 | ||
108 | #ifdef USE_FSU_PTHREADS | |
109 | #include "fsu-pthreads.h" | |
110 | #endif | |
111 | #endif | |
112 | ||
113 | #ifdef USE_COOP_THREADS | |
114 | #include "libguile/coop-defs.h" | |
115 | #endif | |
116 | ||
117 | #endif /* THREADSH */ |