Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
dee01b01 DH |
3 | #ifndef SCM_ROOT_H |
4 | #define SCM_ROOT_H | |
0f2d19dd | 5 | |
dee01b01 DH |
6 | /* Copyright (C) 1996,1998,2000,2001 Free Software Foundation, Inc. |
7 | * | |
0f2d19dd JB |
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. | |
dee01b01 | 12 | * |
0f2d19dd JB |
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. | |
dee01b01 | 17 | * |
0f2d19dd JB |
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 | |
0f2d19dd 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. */ |
d3a6bc94 | 46 | |
0f2d19dd JB |
47 | \f |
48 | ||
b4309c3c | 49 | #include "libguile/__scm.h" |
033c7f3d | 50 | #include "libguile/debug.h" |
e71575d9 | 51 | #include "libguile/throw.h" |
0f2d19dd JB |
52 | |
53 | \f | |
54 | ||
55 | #define scm_flo0 scm_sys_protects[0] | |
56 | #define scm_listofnull scm_sys_protects[1] | |
57 | #define scm_undefineds scm_sys_protects[2] | |
58 | #define scm_nullvect scm_sys_protects[3] | |
59 | #define scm_nullstr scm_sys_protects[4] | |
86d31dfe MV |
60 | #define scm_keyword_obarray scm_sys_protects[5] |
61 | #define scm_stand_in_procs scm_sys_protects[6] | |
62 | #define scm_object_whash scm_sys_protects[7] | |
63 | #define scm_permobjs scm_sys_protects[8] | |
64 | #define scm_asyncs scm_sys_protects[9] | |
65 | #define scm_protects scm_sys_protects[10] | |
66 | #define scm_properties_whash scm_sys_protects[11] | |
6b1b030e | 67 | #define scm_gc_registered_roots scm_sys_protects[12] |
615aec77 | 68 | #ifdef DEBUG_EXTENSIONS |
6b1b030e ML |
69 | #define scm_source_whash scm_sys_protects[13] |
70 | #define SCM_NUM_PROTECTS 14 | |
0f979f3f | 71 | #else |
6b1b030e | 72 | #define SCM_NUM_PROTECTS 13 |
615aec77 | 73 | #endif |
0f2d19dd | 74 | |
33b001fd | 75 | SCM_API SCM scm_sys_protects[]; |
0f2d19dd JB |
76 | |
77 | \f | |
78 | ||
33b001fd | 79 | SCM_API scm_t_bits scm_tc16_root; |
010afa35 | 80 | |
e841c3e0 | 81 | #define SCM_ROOTP(obj) SCM_TYP16_PREDICATE (scm_tc16_root, obj) |
54778cd3 | 82 | #define SCM_ROOT_STATE(root) ((scm_root_state *) SCM_CELL_WORD_1 (root)) |
010afa35 MD |
83 | |
84 | typedef struct scm_root_state | |
0f2d19dd JB |
85 | { |
86 | SCM_STACKITEM * stack_base; | |
87 | jmp_buf save_regs_gc_mark; | |
88 | int errjmp_bad; | |
89 | ||
90 | SCM rootcont; | |
91 | SCM dynwinds; | |
033c7f3d MD |
92 | #ifdef DEBUG_EXTENSIONS |
93 | /* It is very inefficient to have this variable in the root state. */ | |
92c2555f | 94 | scm_t_debug_frame *last_debug_frame; |
033c7f3d | 95 | #endif |
7b4e5a7a | 96 | |
0f2d19dd JB |
97 | SCM progargs; /* vestigial */ |
98 | SCM exitval; /* vestigial */ | |
99 | ||
100 | SCM cur_inp; | |
101 | SCM cur_outp; | |
102 | SCM cur_errp; | |
103 | SCM def_inp; | |
104 | SCM def_outp; | |
105 | SCM def_errp; | |
903073d5 | 106 | SCM cur_loadp; |
0f2d19dd | 107 | |
7b4e5a7a MV |
108 | SCM fluids; |
109 | ||
010afa35 MD |
110 | SCM handle; /* The root object for this root state */ |
111 | SCM parent; /* The parent root object */ | |
112 | } scm_root_state; | |
0f2d19dd JB |
113 | |
114 | #define scm_stack_base (scm_root->stack_base) | |
115 | #define scm_save_regs_gc_mark (scm_root->save_regs_gc_mark) | |
116 | #define scm_errjmp_bad (scm_root->errjmp_bad) | |
117 | ||
118 | #define scm_rootcont (scm_root->rootcont) | |
119 | #define scm_dynwinds (scm_root->dynwinds) | |
0f2d19dd | 120 | #define scm_progargs (scm_root->progargs) |
033c7f3d MD |
121 | #ifdef USE_THREADS |
122 | #define scm_last_debug_frame (scm_root->last_debug_frame) | |
123 | #endif | |
0f2d19dd JB |
124 | #define scm_exitval (scm_root->exitval) |
125 | #define scm_cur_inp (scm_root->cur_inp) | |
126 | #define scm_cur_outp (scm_root->cur_outp) | |
127 | #define scm_cur_errp (scm_root->cur_errp) | |
128 | #define scm_def_inp (scm_root->def_inp) | |
129 | #define scm_def_outp (scm_root->def_outp) | |
130 | #define scm_def_errp (scm_root->def_errp) | |
903073d5 | 131 | #define scm_cur_loadp (scm_root->cur_loadp) |
5aab5d96 | 132 | |
010afa35 | 133 | #ifdef USE_THREADS |
f15347a0 MD |
134 | #define scm_root ((scm_root_state *) SCM_THREAD_LOCAL_DATA) |
135 | #define scm_set_root(new_root) SCM_SET_THREAD_LOCAL_DATA (new_root) | |
010afa35 | 136 | #else /* USE_THREADS */ |
33b001fd | 137 | SCM_API struct scm_root_state *scm_root; |
010afa35 | 138 | #define scm_set_root(new_root) (scm_root = (new_root)) |
010afa35 | 139 | #endif /* USE_THREADS */ |
0f2d19dd | 140 | |
010afa35 | 141 | \f |
0f2d19dd | 142 | |
33b001fd MV |
143 | SCM_API SCM scm_make_root (SCM parent); |
144 | SCM_API SCM scm_internal_cwdr (scm_t_catch_body body, | |
145 | void *body_data, | |
146 | scm_t_catch_handler handler, | |
147 | void *handler_data, | |
148 | SCM_STACKITEM *stack_start); | |
149 | SCM_API SCM scm_call_with_dynamic_root (SCM thunk, SCM handler); | |
150 | SCM_API SCM scm_dynamic_root (void); | |
151 | SCM_API SCM scm_apply_with_dynamic_root (SCM proc, SCM a1, SCM args, SCM handler); | |
152 | SCM_API void scm_init_root (void); | |
0f2d19dd | 153 | |
dee01b01 | 154 | #endif /* SCM_ROOT_H */ |
89e00824 ML |
155 | |
156 | /* | |
157 | Local Variables: | |
158 | c-file-style: "gnu" | |
159 | End: | |
160 | */ |