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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef CONTINUATIONSH | |
4 | #define CONTINUATIONSH | |
5 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; see the file COPYING. If not, write to | |
19 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | * As a special exception, the Free Software Foundation gives permission | |
22 | * for additional uses of the text contained in its release of GUILE. | |
23 | * | |
24 | * The exception is that, if you link the GUILE library with other files | |
25 | * to produce an executable, this does not by itself cause the | |
26 | * resulting executable to be covered by the GNU General Public License. | |
27 | * Your use of that executable is in no way restricted on account of | |
28 | * linking the GUILE library code into it. | |
29 | * | |
30 | * This exception does not however invalidate any other reasons why | |
31 | * the executable file might be covered by the GNU General Public License. | |
32 | * | |
33 | * This exception applies only to the code released by the | |
34 | * Free Software Foundation under the name GUILE. If you copy | |
35 | * code from other Free Software Foundation releases into a copy of | |
36 | * GUILE, as the General Public License permits, the exception does | |
37 | * not apply to the code that you add in this way. To avoid misleading | |
38 | * anyone as to the status of such modified files, you must delete | |
39 | * this exception notice from them. | |
40 | * | |
41 | * If you write modifications of your own for GUILE, it is your choice | |
42 | * whether to permit this exception to apply to your modifications. | |
43 | * If you do not wish that, delete this exception notice. | |
44 | */ | |
45 | \f | |
b4309c3c | 46 | #include "libguile/__scm.h" |
0f2d19dd JB |
47 | |
48 | \f | |
49 | ||
50 | typedef struct | |
51 | { | |
52 | SCM throw_value; | |
53 | jmp_buf jmpbuf; | |
54 | SCM dynenv; | |
55 | SCM_STACKITEM *base; | |
56 | unsigned long seq; | |
57 | ||
58 | #ifdef DEBUG_EXTENSIONS | |
59 | struct scm_debug_frame *dframe; | |
60 | #endif | |
0db18cf4 | 61 | } scm_contregs; |
0f2d19dd | 62 | |
0db18cf4 | 63 | #define SCM_JMPBUF(x) (((scm_contregs *)SCM_CHARS(x))->jmpbuf) |
0f2d19dd | 64 | #define SCM_SETJMPBUF SCM_SETCDR |
0db18cf4 MD |
65 | #define SCM_DYNENV(x) (((scm_contregs *)SCM_CHARS(x))->dynenv) |
66 | #define SCM_THROW_VALUE(x) (((scm_contregs *)SCM_CHARS(x))->throw_value) | |
67 | #define SCM_BASE(x) (((scm_contregs *)SCM_CHARS(x))->base) | |
68 | #define SCM_SEQ(x) (((scm_contregs *)SCM_CHARS(x))->seq) | |
69 | #define SCM_DFRAME(x) (((scm_contregs *)SCM_CHARS(x))->dframe) | |
0f2d19dd JB |
70 | |
71 | \f | |
72 | ||
1cc91f1b JB |
73 | extern SCM scm_make_cont SCM_P ((SCM * answer)); |
74 | extern void scm_dynthrow SCM_P ((SCM *a)); | |
75 | extern SCM scm_call_continuation SCM_P ((SCM cont, SCM val)); | |
76 | extern void scm_init_continuations SCM_P ((void)); | |
0f2d19dd | 77 | |
0f2d19dd | 78 | #endif /* CONTINUATIONSH */ |