Commit | Line | Data |
---|---|---|
7bfd3b9e JB |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef COOP_THREADSH | |
4 | #define COOP_THREADSH | |
5 | ||
f2c9fcb0 | 6 | /* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. |
7bfd3b9e JB |
7 | * |
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. | |
12 | * | |
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. | |
17 | * | |
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. */ |
7bfd3b9e JB |
46 | \f |
47 | ||
48 | /* This file is only included by coop-threads.c while coop-defs.h is | |
49 | included by threads.h, which, in turn, is included by | |
50 | libguile.h. */ | |
51 | ||
52 | /* The coop_t struct is declared in coop-defs.h. */ | |
53 | ||
54 | #include "libguile/__scm.h" | |
55 | ||
56 | #include <time.h> | |
57 | ||
a0599745 MD |
58 | #include "libguile/coop-defs.h" |
59 | #include "qt/qt.h" | |
7bfd3b9e JB |
60 | |
61 | /* This code is based on a sample thread libraru by David Keppel. | |
62 | Portions of this file fall under the following copyright: */ | |
63 | ||
64 | /* | |
65 | * QuickThreads -- Threads-building toolkit. | |
66 | * Copyright (c) 1993 by David Keppel | |
67 | * | |
68 | * Permission to use, copy, modify and distribute this software and | |
69 | * its documentation for any purpose and without fee is hereby | |
70 | * granted, provided that the above copyright notice and this notice | |
71 | * appear in all copies. This software is provided as a | |
72 | * proof-of-concept and for demonstration purposes; there is no | |
73 | * representation about the suitability of this software for any | |
74 | * purpose. | |
75 | */ | |
76 | ||
7bfd3b9e JB |
77 | /* Each thread starts by calling a user-supplied function of this |
78 | type. */ | |
79 | ||
80 | typedef void (coop_userf_t)(void *p0); | |
81 | ||
82 | /* Call this before any other primitives. */ | |
6d71500e | 83 | extern void coop_init (void); |
7bfd3b9e JB |
84 | |
85 | /* When one or more threads are created by the main thread, | |
86 | the system goes multithread when this is called. It is done | |
87 | (no more runable threads) when this returns. */ | |
88 | ||
89 | extern void coop_start (void); | |
90 | ||
91 | /* Create a thread and make it runable. When the thread starts | |
92 | running it will call `f' with arguments `p0' and `p1'. */ | |
93 | ||
94 | extern coop_t *coop_create (coop_userf_t *f, void *p0); | |
95 | ||
96 | /* The current thread stops running but stays runable. | |
97 | It is an error to call `coop_yield' before `coop_start' | |
98 | is called or after `coop_start' returns. */ | |
99 | ||
100 | extern void coop_yield (void); | |
101 | ||
102 | /* Like `coop_yield' but the thread is discarded. Any intermediate | |
103 | state is lost. The thread can also terminate by simply | |
104 | returning. */ | |
105 | ||
106 | extern void coop_abort (void); | |
107 | ||
44e8413c MD |
108 | /* The following are needed in iselect.c */ |
109 | ||
110 | extern coop_t *coop_qget (coop_q_t *); | |
111 | extern void coop_qput (coop_q_t *, coop_t *); | |
112 | extern void *coop_sleephelp (qt_t *, void *, void *); | |
113 | ||
114 | #ifdef GUILE_ISELECT | |
115 | extern coop_t *coop_wait_for_runnable_thread (); | |
116 | #endif | |
117 | ||
7bfd3b9e | 118 | extern coop_q_t coop_global_runq; /* A queue of runable threads. */ |
44e8413c MD |
119 | extern coop_q_t coop_global_sleepq; |
120 | extern coop_q_t coop_tmp_queue; | |
7bfd3b9e JB |
121 | extern coop_q_t coop_global_allq; /* A queue of all threads. */ |
122 | extern coop_t *coop_global_curr; /* Currently-executing thread. */ | |
123 | ||
124 | #endif /* COOP_THREADSH */ | |
89e00824 ML |
125 | |
126 | /* | |
127 | Local Variables: | |
128 | c-file-style: "gnu" | |
129 | End: | |
130 | */ |