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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
17e90c5e KN |
2 | * |
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) | |
6 | * any later version. | |
7 | * | |
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. | |
12 | * | |
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, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
42 | #include <string.h> | |
43 | #include "instructions.h" | |
44 | #include "programs.h" | |
45 | #include "vm.h" | |
46 | ||
47 | \f | |
48 | scm_bits_t scm_tc16_program; | |
49 | ||
50 | static SCM zero_vector; | |
51 | ||
52 | SCM | |
53 | scm_c_make_program (void *addr, size_t size, SCM holder) | |
54 | #define FUNC_NAME "scm_c_make_program" | |
55 | { | |
56 | struct scm_program *p = SCM_MUST_MALLOC (sizeof (struct scm_program)); | |
57 | p->size = size; | |
58 | p->nargs = 0; | |
59 | p->nrest = 0; | |
60 | p->nlocs = 0; | |
3d5ee0cd | 61 | p->nexts = 0; |
ac99cb0c | 62 | p->meta = SCM_BOOL_F; |
17e90c5e KN |
63 | p->objs = zero_vector; |
64 | p->external = SCM_EOL; | |
65 | p->holder = holder; | |
66 | ||
67 | /* If nobody holds bytecode's address, then allocate a new memory */ | |
3d5ee0cd | 68 | if (SCM_FALSEP (holder)) |
17e90c5e KN |
69 | p->base = SCM_MUST_MALLOC (size); |
70 | else | |
71 | p->base = addr; | |
72 | ||
73 | SCM_RETURN_NEWSMOB (scm_tc16_program, p); | |
74 | } | |
75 | #undef FUNC_NAME | |
76 | ||
77 | SCM | |
3d5ee0cd | 78 | scm_c_make_closure (SCM program, SCM external) |
17e90c5e | 79 | { |
ac02b386 KN |
80 | SCM prog = scm_c_make_program (0, 0, program); |
81 | *SCM_PROGRAM_DATA (prog) = *SCM_PROGRAM_DATA (program); | |
ac99cb0c | 82 | SCM_PROGRAM_DATA (prog)->external = external; |
17e90c5e KN |
83 | return prog; |
84 | } | |
85 | ||
86 | static SCM | |
87 | program_mark (SCM obj) | |
88 | { | |
89 | struct scm_program *p = SCM_PROGRAM_DATA (obj); | |
ac99cb0c | 90 | scm_gc_mark (p->meta); |
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91 | scm_gc_mark (p->objs); |
92 | scm_gc_mark (p->external); | |
93 | return p->holder; | |
94 | } | |
95 | ||
96 | static scm_sizet | |
97 | program_free (SCM obj) | |
98 | { | |
99 | struct scm_program *p = SCM_PROGRAM_DATA (obj); | |
100 | scm_sizet size = (sizeof (struct scm_program)); | |
101 | if (SCM_FALSEP (p->holder)) | |
102 | { | |
103 | size += p->size; | |
104 | scm_must_free (p->base); | |
105 | } | |
106 | scm_must_free (p); | |
107 | return size; | |
108 | } | |
109 | ||
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110 | static SCM |
111 | program_apply (SCM program, SCM args) | |
112 | { | |
499a4c07 | 113 | return scm_vm_apply (scm_the_vm (), program, args); |
17e90c5e KN |
114 | } |
115 | ||
116 | \f | |
117 | /* | |
118 | * Scheme interface | |
119 | */ | |
120 | ||
121 | SCM_DEFINE (scm_program_p, "program?", 1, 0, 0, | |
122 | (SCM obj), | |
123 | "") | |
124 | #define FUNC_NAME s_scm_program_p | |
125 | { | |
126 | return SCM_BOOL (SCM_PROGRAM_P (obj)); | |
127 | } | |
128 | #undef FUNC_NAME | |
129 | ||
ac99cb0c KN |
130 | SCM_DEFINE (scm_program_base, "program-base", 1, 0, 0, |
131 | (SCM program), | |
132 | "") | |
133 | #define FUNC_NAME s_scm_program_base | |
134 | { | |
135 | SCM_VALIDATE_PROGRAM (1, program); | |
136 | ||
e74a58f2 | 137 | return scm_ulong2num ((unsigned long) SCM_PROGRAM_DATA (program)->base); |
ac99cb0c KN |
138 | } |
139 | #undef FUNC_NAME | |
140 | ||
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141 | SCM_DEFINE (scm_program_arity, "program-arity", 1, 0, 0, |
142 | (SCM program), | |
143 | "") | |
144 | #define FUNC_NAME s_scm_program_arity | |
ac99cb0c KN |
145 | { |
146 | struct scm_program *p; | |
147 | ||
148 | SCM_VALIDATE_PROGRAM (1, program); | |
149 | ||
150 | p = SCM_PROGRAM_DATA (program); | |
151 | return SCM_LIST4 (SCM_MAKINUM (p->nargs), | |
152 | SCM_MAKINUM (p->nrest), | |
153 | SCM_MAKINUM (p->nlocs), | |
154 | SCM_MAKINUM (p->nexts)); | |
155 | } | |
156 | #undef FUNC_NAME | |
157 | ||
158 | SCM_DEFINE (scm_program_meta, "program-meta", 1, 0, 0, | |
159 | (SCM program), | |
160 | "") | |
161 | #define FUNC_NAME s_scm_program_meta | |
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162 | { |
163 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 164 | return SCM_PROGRAM_DATA (program)->meta; |
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165 | } |
166 | #undef FUNC_NAME | |
167 | ||
168 | SCM_DEFINE (scm_program_objects, "program-objects", 1, 0, 0, | |
169 | (SCM program), | |
170 | "") | |
171 | #define FUNC_NAME s_scm_program_objects | |
172 | { | |
173 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 174 | return SCM_PROGRAM_DATA (program)->objs; |
17e90c5e KN |
175 | } |
176 | #undef FUNC_NAME | |
177 | ||
178 | SCM_DEFINE (scm_program_external, "program-external", 1, 0, 0, | |
179 | (SCM program), | |
180 | "") | |
181 | #define FUNC_NAME s_scm_program_external | |
182 | { | |
183 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c | 184 | return SCM_PROGRAM_DATA (program)->external; |
17e90c5e KN |
185 | } |
186 | #undef FUNC_NAME | |
187 | ||
188 | SCM_DEFINE (scm_program_bytecode, "program-bytecode", 1, 0, 0, | |
189 | (SCM program), | |
190 | "") | |
191 | #define FUNC_NAME s_scm_program_bytecode | |
192 | { | |
193 | SCM_VALIDATE_PROGRAM (1, program); | |
ac99cb0c KN |
194 | return scm_makfromstr (SCM_PROGRAM_DATA (program)->base, |
195 | SCM_PROGRAM_DATA (program)->size, 0); | |
17e90c5e KN |
196 | } |
197 | #undef FUNC_NAME | |
198 | ||
199 | \f | |
200 | void | |
201 | scm_init_programs (void) | |
202 | { | |
203 | zero_vector = scm_permanent_object (scm_c_make_vector (0, SCM_BOOL_F)); | |
204 | ||
205 | scm_tc16_program = scm_make_smob_type ("program", 0); | |
206 | scm_set_smob_mark (scm_tc16_program, program_mark); | |
207 | scm_set_smob_free (scm_tc16_program, program_free); | |
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208 | scm_set_smob_apply (scm_tc16_program, program_apply, 0, 0, 1); |
209 | ||
210 | #ifndef SCM_MAGIC_SNARFER | |
211 | #include "programs.x" | |
212 | #endif | |
213 | } | |
214 | ||
215 | /* | |
216 | Local Variables: | |
217 | c-file-style: "gnu" | |
218 | End: | |
219 | */ |