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7dc6e754 | 1 | /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
7bfd3b9e JB |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
7bfd3b9e JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
7bfd3b9e JB |
41 | \f |
42 | ||
7f0f3eaa JB |
43 | /* This file does some pretty hairy #inclusion. It probably seemed |
44 | like a good idea at the time, but it doesn't now. Here's the | |
45 | structure, edited for relevance (!), last I checked: | |
46 | ||
47 | threads.c: | |
48 | threads.h | |
49 | coop-defs.h | |
50 | iselect.h | |
51 | mit-pthreads.c | |
52 | coop-threads.c | |
53 | coop-threads.h | |
54 | coop-defs.h* | |
55 | ../qt/qt.h | |
56 | coop.c | |
57 | <qt.h> | |
58 | ||
055e7d64 | 59 | * second #inclusion |
7f0f3eaa JB |
60 | */ |
61 | ||
7bfd3b9e JB |
62 | #include <stdio.h> |
63 | #include "_scm.h" | |
64 | #include "dynwind.h" | |
65 | #include "smob.h" | |
56366edf | 66 | #include "genio.h" |
7bfd3b9e JB |
67 | |
68 | #include "threads.h" | |
69 | ||
70 | \f | |
71 | ||
72 | long scm_tc16_thread; | |
73 | ||
74 | long scm_tc16_mutex; | |
75 | ||
76 | long scm_tc16_condvar; | |
77 | ||
78 | \f | |
79 | /* Scheme-visible thread functions. */ | |
80 | ||
81 | #ifdef USE_COOP_THREADS | |
82 | SCM_PROC(s_single_thread_p, "single-active-thread?", 0, 0, 0, scm_single_thread_p); | |
83 | #endif | |
84 | SCM_PROC(s_yield, "yield", 0, 0, 0, scm_yield); | |
85 | SCM_PROC(s_call_with_new_thread, "call-with-new-thread", 0, 0, 1, scm_call_with_new_thread); | |
86 | SCM_PROC(s_join_thread, "join-thread", 1, 0, 0, scm_join_thread); | |
87 | SCM_PROC(s_make_mutex, "make-mutex", 0, 0, 0, scm_make_mutex); | |
88 | SCM_PROC(s_lock_mutex, "lock-mutex", 1, 0, 0, scm_lock_mutex); | |
89 | SCM_PROC(s_unlock_mutex, "unlock-mutex", 1, 0, 0, scm_unlock_mutex); | |
90 | SCM_PROC(s_make_condition_variable, "make-condition-variable", 0, 0, 0, scm_make_condition_variable); | |
91 | SCM_PROC(s_wait_condition_variable, "wait-condition-variable", 2, 0, 0, scm_wait_condition_variable); | |
92 | SCM_PROC(s_signal_condition_variable, "signal-condition-variable", 1, 0, 0, scm_signal_condition_variable); | |
93 | ||
94 | \f | |
95 | ||
96 | #ifdef USE_MIT_PTHREADS | |
97 | #include "mit-pthreads.c" | |
98 | #endif | |
99 | ||
100 | #ifdef USE_COOP_THREADS | |
101 | #include "coop-threads.c" | |
102 | #endif | |
103 | ||
104 | static int | |
105 | print_thread (exp, port, pstate) | |
106 | SCM exp; | |
107 | SCM port; | |
108 | scm_print_state *pstate; | |
109 | { | |
b7f3516f | 110 | scm_puts ("#<thread ", port); |
7bfd3b9e | 111 | scm_intprint (SCM_CDR (exp), 16, port); |
b7f3516f | 112 | scm_putc ('>', port); |
7bfd3b9e JB |
113 | return 1; |
114 | } | |
115 | ||
116 | static scm_smobfuns thread_smob = | |
117 | { | |
dc53f026 | 118 | 0, |
7bfd3b9e JB |
119 | scm_threads_free_thread, |
120 | print_thread, | |
121 | 0 | |
122 | }; | |
123 | ||
124 | static int | |
125 | print_mutex (exp, port, pstate) | |
126 | SCM exp; | |
127 | SCM port; | |
128 | scm_print_state *pstate; | |
129 | { | |
b7f3516f | 130 | scm_puts ("#<mutex ", port); |
7bfd3b9e | 131 | scm_intprint (SCM_CDR (exp), 16, port); |
b7f3516f | 132 | scm_putc ('>', port); |
7bfd3b9e JB |
133 | return 1; |
134 | } | |
135 | ||
136 | static scm_smobfuns mutex_smob = | |
137 | { | |
dc53f026 | 138 | 0, |
7bfd3b9e JB |
139 | scm_threads_free_mutex, |
140 | print_mutex, | |
141 | 0 | |
142 | }; | |
143 | ||
144 | static int | |
145 | print_condvar (exp, port, pstate) | |
146 | SCM exp; | |
147 | SCM port; | |
148 | scm_print_state *pstate; | |
149 | { | |
b7f3516f | 150 | scm_puts ("#<condition-variable ", port); |
7bfd3b9e | 151 | scm_intprint (SCM_CDR (exp), 16, port); |
b7f3516f | 152 | scm_putc ('>', port); |
7bfd3b9e JB |
153 | return 1; |
154 | } | |
155 | ||
156 | static scm_smobfuns condvar_smob = | |
157 | { | |
dc53f026 | 158 | 0, |
7bfd3b9e JB |
159 | scm_threads_free_condvar, |
160 | print_condvar, | |
161 | 0 | |
162 | }; | |
163 | ||
164 | \f | |
165 | ||
166 | #ifdef __STDC__ | |
167 | void | |
168 | scm_init_threads (SCM_STACKITEM *i) | |
169 | #else | |
170 | void | |
171 | scm_init_threads (i) | |
172 | SCM_STACKITEM *i; | |
173 | #endif | |
174 | { | |
175 | scm_tc16_thread = scm_newsmob (&thread_smob); | |
176 | scm_tc16_mutex = scm_newsmob (&mutex_smob); | |
177 | scm_tc16_condvar = scm_newsmob (&condvar_smob); | |
178 | #include "threads.x" | |
179 | /* Initialize implementation specific details of the threads support */ | |
180 | scm_threads_init (i); | |
181 | } |