1 /* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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)
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.
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
15 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
17 * As a special exception, the Free Software Foundation gives permission
18 * for additional uses of the text contained in its release of GUILE.
20 * The exception is that, if you link the GUILE library with other files
21 * to produce an executable, this does not by itself cause the
22 * resulting executable to be covered by the GNU General Public License.
23 * Your use of that executable is in no way restricted on account of
24 * linking the GUILE library code into it.
26 * This exception does not however invalidate any other reasons why
27 * the executable file might be covered by the GNU General Public License.
29 * This exception applies only to the code released by the
30 * Free Software Foundation under the name GUILE. If you copy
31 * code from other Free Software Foundation releases into a copy of
32 * GUILE, as the General Public License permits, the exception does
33 * not apply to the code that you add in this way. To avoid misleading
34 * anyone as to the status of such modified files, you must delete
35 * this exception notice from them.
37 * If you write modifications of your own for GUILE, it is your choice
38 * whether to permit this exception to apply to your modifications.
39 * If you do not wish that, delete this exception notice.
56 long scm_tc16_condvar
;
59 /* Scheme-visible thread functions. */
61 #ifdef USE_COOP_THREADS
62 SCM_PROC(s_single_thread_p
, "single-active-thread?", 0, 0, 0, scm_single_thread_p
);
64 SCM_PROC(s_yield
, "yield", 0, 0, 0, scm_yield
);
65 SCM_PROC(s_call_with_new_thread
, "call-with-new-thread", 0, 0, 1, scm_call_with_new_thread
);
66 SCM_PROC(s_join_thread
, "join-thread", 1, 0, 0, scm_join_thread
);
67 SCM_PROC(s_make_mutex
, "make-mutex", 0, 0, 0, scm_make_mutex
);
68 SCM_PROC(s_lock_mutex
, "lock-mutex", 1, 0, 0, scm_lock_mutex
);
69 SCM_PROC(s_unlock_mutex
, "unlock-mutex", 1, 0, 0, scm_unlock_mutex
);
70 SCM_PROC(s_make_condition_variable
, "make-condition-variable", 0, 0, 0, scm_make_condition_variable
);
71 SCM_PROC(s_wait_condition_variable
, "wait-condition-variable", 2, 0, 0, scm_wait_condition_variable
);
72 SCM_PROC(s_signal_condition_variable
, "signal-condition-variable", 1, 0, 0, scm_signal_condition_variable
);
76 #ifdef USE_MIT_PTHREADS
77 #include "mit-pthreads.c"
80 #ifdef USE_COOP_THREADS
81 #include "coop-threads.c"
85 print_thread (exp
, port
, pstate
)
88 scm_print_state
*pstate
;
90 scm_gen_puts (scm_regular_string
, "#<thread ", port
);
91 scm_intprint (SCM_CDR (exp
), 16, port
);
92 scm_gen_putc ('>', port
);
96 static scm_smobfuns thread_smob
=
99 scm_threads_free_thread
,
105 print_mutex (exp
, port
, pstate
)
108 scm_print_state
*pstate
;
110 scm_gen_puts (scm_regular_string
, "#<mutex ", port
);
111 scm_intprint (SCM_CDR (exp
), 16, port
);
112 scm_gen_putc ('>', port
);
116 static scm_smobfuns mutex_smob
=
119 scm_threads_free_mutex
,
125 print_condvar (exp
, port
, pstate
)
128 scm_print_state
*pstate
;
130 scm_gen_puts (scm_regular_string
, "#<condition-variable ", port
);
131 scm_intprint (SCM_CDR (exp
), 16, port
);
132 scm_gen_putc ('>', port
);
136 static scm_smobfuns condvar_smob
=
139 scm_threads_free_condvar
,
148 scm_init_threads (SCM_STACKITEM
*i
)
155 scm_tc16_thread
= scm_newsmob (&thread_smob
);
156 scm_tc16_mutex
= scm_newsmob (&mutex_smob
);
157 scm_tc16_condvar
= scm_newsmob (&condvar_smob
);
159 /* Initialize implementation specific details of the threads support */
160 scm_threads_init (i
);