libguile/Makefile.am (snarfcppopts): Remove CFLAGS
[bpt/guile.git] / libguile / throw.h
1 /* classes: h_files */
2
3 #ifndef SCM_THROW_H
4 #define SCM_THROW_H
5
6 /* Copyright (C) 1995,1996,1998,2000, 2006, 2008, 2010, 2014 Free Software Foundation, Inc.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 3 of
11 * the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 */
23
24 \f
25
26 #include "libguile/__scm.h"
27
28 \f
29
30 typedef SCM (*scm_t_catch_body) (void *data);
31 typedef SCM (*scm_t_catch_handler) (void *data,
32 SCM tag, SCM throw_args);
33
34 SCM_API SCM scm_c_catch (SCM tag,
35 scm_t_catch_body body,
36 void *body_data,
37 scm_t_catch_handler handler,
38 void *handler_data,
39 scm_t_catch_handler pre_unwind_handler,
40 void *pre_unwind_handler_data);
41
42 SCM_API SCM scm_c_with_throw_handler (SCM tag,
43 scm_t_catch_body body,
44 void *body_data,
45 scm_t_catch_handler handler,
46 void *handler_data,
47 int lazy_catch_p);
48
49 SCM_API SCM scm_internal_catch (SCM tag,
50 scm_t_catch_body body,
51 void *body_data,
52 scm_t_catch_handler handler,
53 void *handler_data);
54
55 /* The first argument to scm_body_thunk should be a pointer to one of
56 these. See the implementation of catch in throw.c. */
57 struct scm_body_thunk_data
58 {
59 /* The tag being caught. We only use it to figure out what
60 arguments to pass to the body procedure; see scm_catch_thunk_body for
61 details. */
62 SCM tag;
63
64 /* The Scheme procedure object constituting the catch body.
65 scm_body_by_proc invokes this. */
66 SCM body_proc;
67 };
68
69 SCM_API SCM scm_body_thunk (void *);
70
71
72 SCM_API SCM scm_handle_by_proc (void *, SCM, SCM);
73 SCM_API SCM scm_handle_by_proc_catching_all (void *, SCM, SCM);
74 SCM_API SCM scm_handle_by_message (void *, SCM, SCM);
75 SCM_API SCM scm_handle_by_message_noexit (void *, SCM, SCM);
76 SCM_API SCM scm_handle_by_throw (void *, SCM, SCM);
77 SCM_API int scm_exit_status (SCM args);
78
79 SCM_API SCM scm_catch_with_pre_unwind_handler (SCM tag, SCM thunk, SCM handler, SCM lazy_handler);
80 SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler);
81 SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler);
82 SCM_API SCM scm_ithrow (SCM key, SCM args, int no_return);
83
84 /* This throws to the `stack-overflow' key, without running pre-unwind
85 handlers. */
86 SCM_API void scm_report_stack_overflow (void);
87
88 /* This throws to the `out-of-memory' key, without running pre-unwind
89 handlers. */
90 SCM_API void scm_report_out_of_memory (void);
91
92 SCM_API SCM scm_throw (SCM key, SCM args);
93 SCM_INTERNAL void scm_init_throw (void);
94
95 #endif /* SCM_THROW_H */
96
97 /*
98 Local Variables:
99 c-file-style: "gnu"
100 End:
101 */