/* classes: h_files */
-#ifndef COOP_DEFSH
-#define COOP_DEFSH
+#ifndef SCM_COOP_DEFS_H
+#define SCM_COOP_DEFS_H
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
- *
+/* Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
+
\f
# ifdef TIME_WITH_SYS_TIME
# endif
#ifdef GUILE_ISELECT
-#include "iselect.h"
+#include "libguile/iselect.h"
+#endif
+
+#if HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+
+#ifdef GUILE_PTHREAD_COMPAT
+#include <pthread.h>
#endif
/* This file is included by threads.h, which, in turn, is included by
struct coop_t *all_prev;
void *data; /* Thread local data */
+ void **specific; /* Data associated with keys */
+ int n_keys; /* Upper limit for keys on this thread */
void *base; /* Base of stack */
void *top; /* Top of stack */
time_t wakeup_time; /* Time to stop sleeping */
#endif
+#ifdef GUILE_PTHREAD_COMPAT
+ pthread_t dummy_thread;
+ pthread_mutex_t dummy_mutex;
+#endif
} coop_t;
/* A queue is a circular list of threads. The queue head is a
coop_q_t waiting; /* Queue of waiting threads */
} coop_m;
-typedef coop_m scm_mutex_t;
+typedef int coop_mattr;
-extern int coop_mutex_init (coop_m*);
-extern int coop_mutex_lock (coop_m*);
-extern int coop_mutex_unlock (coop_m*);
-extern int coop_mutex_destroy (coop_m*);
+typedef coop_m scm_t_mutex;
+
+SCM_API int coop_mutex_init (coop_m*);
+SCM_API int coop_new_mutex_init (coop_m*, coop_mattr*);
+SCM_API int coop_mutex_lock (coop_m*);
+SCM_API int coop_mutex_trylock (coop_m*);
+SCM_API int coop_mutex_unlock (coop_m*);
+SCM_API int coop_mutex_destroy (coop_m*);
#define scm_mutex_init coop_mutex_init
#define scm_mutex_lock coop_mutex_lock
+#define scm_mutex_trylock coop_mutex_lock
#define scm_mutex_unlock coop_mutex_unlock
#define scm_mutex_destroy coop_mutex_destroy
coop_q_t waiting; /* Queue of waiting threads */
} coop_c;
-typedef coop_c scm_cond_t;
+typedef int coop_cattr;
+
+typedef coop_c scm_t_cond;
-extern int coop_condition_variable_init (coop_c*);
-extern int coop_condition_variable_wait_mutex (coop_c*, coop_m*);
-extern int coop_condition_variable_signal (coop_c*);
-extern int coop_condition_variable_destroy (coop_c*);
-#define scm_cond_init(cond, attr) coop_condition_variable_init (cond)
+#ifndef HAVE_STRUCT_TIMESPEC
+/* POSIX.4 structure for a time value. This is like a `struct timeval' but
+ has nanoseconds instead of microseconds. */
+struct timespec
+{
+ long int tv_sec; /* Seconds. */
+ long int tv_nsec; /* Nanoseconds. */
+};
+#endif
+
+SCM_API int coop_condition_variable_init (coop_c*);
+SCM_API int coop_new_condition_variable_init (coop_c*, coop_cattr*);
+SCM_API int coop_condition_variable_wait_mutex (coop_c*, coop_m*);
+SCM_API int coop_condition_variable_timed_wait_mutex (coop_c*,
+ coop_m*,
+ const struct timespec *abstime);
+SCM_API int coop_condition_variable_signal (coop_c*);
+SCM_API int coop_condition_variable_destroy (coop_c*);
+#define scm_cond_init coop_new_condition_variable_init
#define scm_cond_wait coop_condition_variable_wait_mutex
+#define scm_cond_timedwait coop_condition_variable_timed_wait_mutex
#define scm_cond_signal coop_condition_variable_signal
+#define scm_cond_broadcast coop_condition_variable_signal /* yes */
#define scm_cond_destroy coop_condition_variable_destroy
-extern coop_t *coop_global_curr; /* Currently-executing thread. */
+typedef int coop_k;
+
+typedef coop_k scm_t_key;
+
+SCM_API int coop_key_create (coop_k *keyp, void (*destruktor) (void *value));
+SCM_API int coop_setspecific (coop_k key, const void *value);
+SCM_API void *coop_getspecific (coop_k key);
+SCM_API int coop_key_delete (coop_k);
+#define scm_key_create coop_key_create
+#define scm_setspecific coop_setspecific
+#define scm_getspecific coop_getspecific
+#define scm_key_delete coop_key_delete
-extern void coop_yield (void);
+SCM_API coop_t *coop_global_curr; /* Currently-executing thread. */
+
+SCM_API void coop_join (coop_t *t);
+SCM_API void coop_yield (void);
+
+SCM_API size_t scm_switch_counter;
+SCM_API size_t scm_thread_count;
+
+\f
+/* Some iselect functions. */
+
+/* I'm not sure whether these three declarations should be here.
+ They're really defined in iselect.c, so you'd think they'd go in
+ iselect.h, but they use coop_t, defined above, which uses things
+ defined in iselect.h. Basically, we're making at best a flailing
+ (and failing) attempt at modularity here, and I don't have time to
+ rethink this at the moment. This code awaits a Hero. --JimB */
+#ifdef GUILE_ISELECT
+SCM_API void coop_timeout_qinsert (coop_q_t *, coop_t *);
+#endif
+SCM_API coop_t *coop_next_runnable_thread (void);
+SCM_API coop_t *coop_wait_for_runnable_thread_now (struct timeval *);
+SCM_API coop_t *coop_wait_for_runnable_thread (void);
-extern size_t scm_switch_counter;
-extern size_t scm_thread_count;
\f
/* Cooperative threads don't need to have these defined */
-#define SCM_THREAD_CRITICAL_SECTION_START
-#define SCM_THREAD_CRITICAL_SECTION_END
+#define SCM_CRITICAL_SECTION_START
+#define SCM_CRITICAL_SECTION_END
\f
\f
-#define SCM_THREAD_DEFER
-#define SCM_THREAD_ALLOW
-#define SCM_THREAD_REDEFER
-#define SCM_THREAD_REALLOW_1
-#define SCM_THREAD_REALLOW_2
-
#if 0
#define SCM_THREAD_SWITCHING_CODE \
-{ \
+do { \
if (scm_thread_count > 1) \
coop_yield(); \
-} \
+} while (0)
#else
#define SCM_THREAD_SWITCHING_CODE \
-{ \
+do { \
if (scm_thread_count > 1) \
{ \
scm_switch_counter--; \
coop_yield(); \
} \
} \
-} \
+} while (0)
#endif
+/* For pthreads, this is a value associated with a specific key.
+ * For coop, we use a special field for increased efficiency.
+ */
#define SCM_THREAD_LOCAL_DATA (coop_global_curr->data)
#define SCM_SET_THREAD_LOCAL_DATA(ptr) (coop_global_curr->data = (ptr))
-#endif /* COOP_DEFSH */
+#endif /* SCM_COOP_DEFS_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/