60 |
* second #inclusion |
* second #inclusion |
61 |
*/ |
*/ |
62 |
|
|
63 |
|
#include <errno.h> |
64 |
|
|
65 |
#include "libguile/_scm.h" |
#include "libguile/_scm.h" |
66 |
#include "libguile/dynwind.h" |
#include "libguile/dynwind.h" |
67 |
#include "libguile/smob.h" |
#include "libguile/smob.h" |
111 |
terminates, unless the target @var{thread} has already terminated. |
terminates, unless the target @var{thread} has already terminated. |
112 |
*/ |
*/ |
113 |
|
|
114 |
|
SCM_DEFINE (scm_thread_exited_p, "thread-exited?", 1, 0, 0, |
115 |
|
(SCM thread), |
116 |
|
"Return @code{#t} iff @var{thread} has exited.\n") |
117 |
|
#define FUNC_NAME s_scm_thread_exited_p |
118 |
|
{ |
119 |
|
return SCM_BOOL (scm_c_thread_exited_p (thread)); |
120 |
|
} |
121 |
|
#undef FUNC_NAME |
122 |
|
|
123 |
SCM_REGISTER_PROC(s_make_mutex, "make-mutex", 0, 0, 0, scm_make_mutex); |
SCM_REGISTER_PROC(s_make_mutex, "make-mutex", 0, 0, 0, scm_make_mutex); |
124 |
/* Create a new mutex object. */ |
/* Create a new mutex object. */ |
125 |
|
|
128 |
blocks until the mutex becomes available. The function returns when |
blocks until the mutex becomes available. The function returns when |
129 |
the calling thread owns the lock on @var{mutex}. */ |
the calling thread owns the lock on @var{mutex}. */ |
130 |
|
|
131 |
|
SCM_REGISTER_PROC(s_try_mutex, "try-mutex", 1, 0, 0, scm_try_mutex); |
132 |
|
/* Try to lock @var{mutex}. If the mutex is already locked by someone |
133 |
|
else, return @code{#f}. Else lock the mutex and return @code{#t}. */ |
134 |
|
|
135 |
SCM_REGISTER_PROC(s_unlock_mutex, "unlock-mutex", 1, 0, 0, scm_unlock_mutex); |
SCM_REGISTER_PROC(s_unlock_mutex, "unlock-mutex", 1, 0, 0, scm_unlock_mutex); |
136 |
/* Unlocks @var{mutex} if the calling thread owns the lock on @var{mutex}. |
/* Unlocks @var{mutex} if the calling thread owns the lock on @var{mutex}. |
137 |
Calling unlock-mutex on a mutex not owned by the current thread results |
Calling unlock-mutex on a mutex not owned by the current thread results |
140 |
|
|
141 |
SCM_REGISTER_PROC(s_make_condition_variable, "make-condition-variable", 0, 0, 0, scm_make_condition_variable); |
SCM_REGISTER_PROC(s_make_condition_variable, "make-condition-variable", 0, 0, 0, scm_make_condition_variable); |
142 |
|
|
143 |
SCM_REGISTER_PROC(s_wait_condition_variable, "wait-condition-variable", 2, 0, 0, scm_wait_condition_variable); |
SCM_REGISTER_PROC(s_wait_condition_variable, "wait-condition-variable", 2, 1, 0, scm_timed_wait_condition_variable); |
144 |
|
|
145 |
SCM_REGISTER_PROC(s_signal_condition_variable, "signal-condition-variable", 1, 0, 0, scm_signal_condition_variable); |
SCM_REGISTER_PROC(s_signal_condition_variable, "signal-condition-variable", 1, 0, 0, scm_signal_condition_variable); |
146 |
|
|
147 |
|
SCM_REGISTER_PROC(s_broadcast_condition_variable, "broadcast-condition-variable", 1, 0, 0, scm_broadcast_condition_variable); |
148 |
|
|
149 |
|
SCM |
150 |
|
scm_wait_condition_variable (SCM c, SCM m) |
151 |
|
{ |
152 |
|
return scm_timed_wait_condition_variable (c, m, SCM_UNDEFINED); |
153 |
|
} |
154 |
|
|
155 |
|
|
156 |
|
|
157 |
#ifdef USE_COOP_THREADS |
#ifdef USE_COOP_THREADS |
158 |
#include "libguile/coop-threads.c" |
#include "libguile/coop-threads.c" |
159 |
#else |
#else |
160 |
|
#ifdef USE_COPT_THREADS |
161 |
|
#include "libguile/coop-pthreads.c" |
162 |
|
#else |
163 |
#include "libguile/null-threads.c" |
#include "libguile/null-threads.c" |
164 |
#endif |
#endif |
165 |
|
#endif |
166 |
|
|
167 |
|
|
168 |
|
|
169 |
|
#if (SCM_ENABLE_DEPRECATED == 1) |
170 |
|
|
171 |
|
SCM_API int |
172 |
|
scm_mutex_init (scm_t_mutex *m) |
173 |
|
{ |
174 |
|
scm_gc_protect_object (m->m = scm_make_mutex ()); |
175 |
|
return 0; |
176 |
|
} |
177 |
|
|
178 |
|
SCM_API int |
179 |
|
scm_mutex_lock (scm_t_mutex *m) |
180 |
|
{ |
181 |
|
scm_lock_mutex (m->m); |
182 |
|
return 0; |
183 |
|
} |
184 |
|
|
185 |
|
SCM_API int |
186 |
|
scm_mutex_trylock (scm_t_mutex *m) |
187 |
|
{ |
188 |
|
return SCM_FALSEP (scm_try_mutex (m->m))? EBUSY : 0; |
189 |
|
} |
190 |
|
|
191 |
|
SCM_API int |
192 |
|
scm_mutex_unlock (scm_t_mutex *m) |
193 |
|
{ |
194 |
|
scm_unlock_mutex (m->m); |
195 |
|
return 0; |
196 |
|
} |
197 |
|
|
198 |
|
SCM_API int |
199 |
|
scm_mutex_destroy (scm_t_mutex *m) |
200 |
|
{ |
201 |
|
scm_gc_unprotect_object (m->m); |
202 |
|
return 0; |
203 |
|
} |
204 |
|
|
205 |
|
SCM_API int |
206 |
|
scm_cond_init (scm_t_cond *c) |
207 |
|
{ |
208 |
|
scm_gc_protect_object (c->c = scm_make_condition_variable ()); |
209 |
|
return 0; |
210 |
|
} |
211 |
|
|
212 |
|
SCM_API int |
213 |
|
scm_cond_wait (scm_t_cond *c, scm_t_mutex *m) |
214 |
|
{ |
215 |
|
scm_wait_condition_variable (c->c, m->m); |
216 |
|
return 0; |
217 |
|
} |
218 |
|
|
219 |
|
SCM_API int |
220 |
|
scm_cond_timedwait (scm_t_cond *c, scm_t_mutex *m, |
221 |
|
const struct timespec *t) |
222 |
|
{ |
223 |
|
return !SCM_FALSEP (scm_timed_wait_condition_variable ( |
224 |
|
c->c, m->m, scm_cons (scm_long2num (t->tv_sec), |
225 |
|
scm_long2num (t->tv_nsec/1000)))); |
226 |
|
} |
227 |
|
|
228 |
|
SCM_API int |
229 |
|
scm_cond_signal (scm_t_cond *c) |
230 |
|
{ |
231 |
|
scm_signal_condition_variable (c->c); |
232 |
|
return 0; |
233 |
|
} |
234 |
|
|
235 |
|
SCM_API int |
236 |
|
scm_cond_destroy (scm_t_cond *c) |
237 |
|
{ |
238 |
|
scm_gc_unprotect_object (c->c); |
239 |
|
return 0; |
240 |
|
} |
241 |
|
|
242 |
|
#endif |
243 |
|
|
244 |
|
|
245 |
|
|
246 |
void |
void |
247 |
scm_init_threads (SCM_STACKITEM *i) |
scm_init_threads (SCM_STACKITEM *i) |
248 |
{ |
{ |
|
scm_tc16_thread = scm_make_smob_type ("thread", 0); |
|
|
scm_tc16_mutex = scm_make_smob_type ("mutex", sizeof (scm_t_mutex)); |
|
|
scm_tc16_condvar = scm_make_smob_type ("condition-variable", |
|
|
sizeof (scm_t_cond)); |
|
|
|
|
|
#include "libguile/threads.x" |
|
249 |
/* Initialize implementation specific details of the threads support */ |
/* Initialize implementation specific details of the threads support */ |
250 |
scm_threads_init (i); |
scm_threads_init (i); |
251 |
} |
} |
252 |
|
|
253 |
|
void |
254 |
|
scm_init_thread_procs () |
255 |
|
{ |
256 |
|
#include "libguile/threads.x" |
257 |
|
} |
258 |
|
|
259 |
/* |
/* |
260 |
Local Variables: |
Local Variables: |
261 |
c-file-style: "gnu" |
c-file-style: "gnu" |