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7bfd3b9e JB |
1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM_THREADS_H |
4 | #define SCM_THREADS_H | |
7bfd3b9e | 5 | |
f7eca35d | 6 | /* Copyright (C) 1996,1997,1998,2000,2001, 2002 Free Software Foundation, Inc. |
0527e687 | 7 | * |
7bfd3b9e JB |
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. | |
0527e687 | 12 | * |
7bfd3b9e JB |
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. | |
0527e687 | 17 | * |
7bfd3b9e JB |
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 | 46 | |
7bfd3b9e JB |
47 | \f |
48 | ||
49 | #include "libguile/__scm.h" | |
50 | #include "libguile/procs.h" | |
1651c824 | 51 | #include "libguile/throw.h" |
f7eca35d | 52 | #include "libguile/root.h" |
7bfd3b9e | 53 | |
b2728432 DH |
54 | \f |
55 | ||
7bfd3b9e | 56 | /* smob tags for the thread datatypes */ |
33b001fd MV |
57 | SCM_API scm_t_bits scm_tc16_thread; |
58 | SCM_API scm_t_bits scm_tc16_mutex; | |
59 | SCM_API scm_t_bits scm_tc16_condvar; | |
7bfd3b9e | 60 | |
e841c3e0 KN |
61 | #define SCM_THREADP(x) SCM_TYP16_PREDICATE (scm_tc16_thread, x) |
62 | #define SCM_THREAD_DATA(x) ((void *) SCM_CELL_WORD_1 (x)) | |
7bfd3b9e | 63 | |
e325b238 | 64 | #define SCM_MUTEXP(x) SCM_TYP16_PREDICATE (scm_tc16_mutex, x) |
e841c3e0 | 65 | #define SCM_MUTEX_DATA(x) ((void *) SCM_CELL_WORD_1 (x)) |
7bfd3b9e | 66 | |
e841c3e0 | 67 | #define SCM_CONDVARP(x) SCM_TYP16_PREDICATE (scm_tc16_condvar, x) |
b2728432 | 68 | #define SCM_CONDVAR_DATA(x) ((void *) SCM_CELL_WORD_1 (x)) |
7bfd3b9e JB |
69 | |
70 | /* Initialize implementation specific details of the threads support */ | |
33b001fd MV |
71 | SCM_API void scm_threads_init (SCM_STACKITEM *); |
72 | SCM_API void scm_threads_mark_stacks (void); | |
73 | SCM_API void scm_init_threads (SCM_STACKITEM *); | |
7bfd3b9e JB |
74 | |
75 | /* */ | |
33b001fd MV |
76 | SCM_API SCM scm_threads_make_mutex (void); |
77 | SCM_API SCM scm_threads_lock_mutex (SCM); | |
78 | SCM_API SCM scm_threads_unlock_mutex (SCM); | |
79 | SCM_API SCM scm_threads_monitor (void); | |
7bfd3b9e | 80 | |
33b001fd MV |
81 | SCM_API SCM scm_spawn_thread (scm_t_catch_body body, void *body_data, |
82 | scm_t_catch_handler handler, void *handler_data); | |
df366c26 | 83 | |
b74f4728 JB |
84 | /* These are versions of the ordinary sleep and usleep functions, |
85 | that play nicely with the thread system. */ | |
33b001fd MV |
86 | SCM_API unsigned long scm_thread_sleep (unsigned long); |
87 | SCM_API unsigned long scm_thread_usleep (unsigned long); | |
b74f4728 JB |
88 | |
89 | ||
6d71500e JB |
90 | /* The C versions of the Scheme-visible thread functions. */ |
91 | #ifdef USE_COOP_THREADS | |
33b001fd | 92 | SCM_API SCM scm_single_thread_p (void); |
6d71500e | 93 | #endif |
33b001fd MV |
94 | SCM_API SCM scm_yield (void); |
95 | SCM_API SCM scm_call_with_new_thread (SCM argl); | |
96 | SCM_API SCM scm_join_thread (SCM t); | |
97 | SCM_API SCM scm_make_mutex (void); | |
98 | SCM_API SCM scm_lock_mutex (SCM m); | |
99 | SCM_API SCM scm_unlock_mutex (SCM m); | |
100 | SCM_API SCM scm_make_condition_variable (void); | |
101 | SCM_API SCM scm_wait_condition_variable (SCM cond, SCM mutex); | |
102 | SCM_API SCM scm_signal_condition_variable (SCM cond); | |
6d71500e | 103 | |
f7eca35d MV |
104 | SCM_API SCM scm_current_thread (void); |
105 | SCM_API SCM scm_all_threads (void); | |
106 | ||
107 | SCM_API scm_root_state *scm_i_thread_root (SCM thread); | |
108 | ||
7bfd3b9e JB |
109 | #ifdef USE_COOP_THREADS |
110 | #include "libguile/coop-defs.h" | |
212d33ec MV |
111 | #else |
112 | #include "libguile/null-threads.h" | |
7bfd3b9e JB |
113 | #endif |
114 | ||
0527e687 | 115 | #endif /* SCM_THREADS_H */ |
89e00824 ML |
116 | |
117 | /* | |
118 | Local Variables: | |
119 | c-file-style: "gnu" | |
120 | End: | |
121 | */ |