Commit | Line | Data |
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a24bd519 LM |
1 | #include <malloc.h> |
2 | #include <string.h> | |
3 | ||
4 | #include "alloc.h" | |
5 | #include "debug.h" | |
6 | #include "parser.h" | |
7 | #include "stack.h" | |
8 | #include "storage.h" | |
9 | ||
10 | #include "program.h" | |
11 | ||
12 | /* global variables */ | |
13 | ||
14 | int argument_size = 0; | |
15 | double *argument = NULL; | |
16 | ||
17 | workspace_t *programs = NULL; | |
18 | int nb_programs = 0; | |
19 | ||
20 | /* program function */ | |
21 | ||
22 | void prog (int id, element_t *root) | |
23 | { | |
24 | int i, n = -1; | |
25 | ||
26 | if (programs == NULL) { | |
27 | ||
28 | /* initial memory allocation */ | |
29 | programs = (workspace_t *) callocordie (1, sizeof (workspace_t)); | |
30 | nb_programs = 1; | |
31 | n = 0; | |
32 | ||
33 | } else { | |
34 | ||
35 | /* look for existing program */ | |
36 | for (i = 0; i < nb_programs; i++) { | |
37 | if ((programs + i)->id == id) { | |
38 | n = i; | |
39 | break; | |
40 | } | |
41 | } | |
42 | if (n == -1) { | |
43 | ||
44 | /* new program */ | |
45 | n = nb_programs++; | |
46 | workspace_t *tmp = (workspace_t *) callocordie (nb_programs, sizeof (workspace_t)); | |
47 | memcpy (tmp, programs, (nb_programs - 1) * sizeof (workspace_t)); | |
48 | free (programs); | |
49 | programs = tmp; | |
50 | } else { | |
51 | ||
52 | /* clean old program */ | |
53 | if ((programs + n)->storage) { | |
54 | free ((programs + n)->storage); | |
55 | } | |
56 | if ((programs + n)->stack) { | |
57 | free ((programs + n)->stack); | |
58 | } | |
59 | if ((programs + n)->root) { | |
60 | delelement ((programs + n)->root); | |
61 | } | |
62 | if ((programs + n)->string) { | |
63 | free ((programs + n)->string); | |
64 | (programs + n)->string = NULL; | |
65 | } | |
66 | } | |
67 | } | |
68 | ||
69 | /* set program */ | |
70 | (programs + n)->id = id; | |
71 | (programs + n)->answer = 0; | |
72 | (programs + n)->storage = NULL; | |
73 | (programs + n)->storage_size = 0; | |
74 | (programs + n)->stack = NULL; | |
75 | (programs + n)->stack_size = 0; | |
76 | (programs + n)->root = dupelement (root); | |
77 | } | |
78 | ||
79 | double arg (int id) | |
80 | { | |
81 | double ret = 0; | |
82 | if ((id <= 0) || (id > argument_size)) { | |
83 | VERBOSE (WARNING, fprintf (stdout, "error out of bound (%d/%d)\n", id, argument_size)); | |
84 | } else { | |
85 | ret = argument[id - 1]; | |
86 | } | |
87 | return ret; | |
88 | } | |
89 | ||
90 | double call (int id, int nbargs, element_t **args) | |
91 | { | |
92 | workspace_t tmp = {0}; | |
93 | int i, l, n = -1; | |
94 | double ret = 0; | |
95 | ||
96 | if (programs) { | |
97 | ||
98 | /* look for program */ | |
99 | for (i = 0; i < nb_programs; i++) { | |
100 | if ((programs + i)->id == id) { | |
101 | n = i; | |
102 | break; | |
103 | } | |
104 | } | |
105 | } | |
106 | if (n == -1) { | |
107 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
108 | return 0; | |
109 | } | |
110 | ||
111 | /* store context */ | |
112 | tmp.answer = answer; | |
113 | tmp.argument = argument; | |
114 | tmp.argument_size = argument_size; | |
115 | tmp.storage = storage; | |
116 | tmp.storage_size = storage_size; | |
117 | tmp.stack = stack; | |
118 | tmp.stack_size = stack_size; | |
119 | ||
120 | /* change context */ | |
121 | answer = 0; | |
122 | storage = (programs + n)->storage; | |
123 | storage_size = (programs + n)->storage_size; | |
124 | argument = NULL; | |
125 | argument_size = 0; | |
126 | stack = (programs + n)->stack; | |
127 | stack_size = (programs + n)->stack_size; | |
128 | if (nbargs > 0) { | |
129 | argument = (double *) callocordie (nbargs, sizeof (double)); | |
130 | for (i = 0, l = 0; i < nbargs; l++) { | |
131 | if (args[l]) { | |
132 | argument[i++] = evaluate_element (args[l], 0); | |
133 | } | |
134 | } | |
135 | argument_size = nbargs; | |
136 | } | |
137 | ||
138 | /* evaluate program */ | |
139 | element_t *elements = dupelement ((programs + n)->root); | |
140 | ret = evaluate_element (elements, 0); | |
141 | delelement (elements); | |
142 | (programs + n)->answer = answer; | |
143 | (programs + n)->storage = storage; | |
144 | (programs + n)->storage_size = storage_size; | |
145 | if (argument) { | |
146 | free (argument); | |
147 | } | |
148 | (programs + n)->stack = stack; | |
149 | (programs + n)->stack_size = stack_size; | |
150 | ||
151 | /* restore context */ | |
152 | answer = tmp.answer; | |
153 | storage = tmp.storage; | |
154 | storage_size = tmp.storage_size; | |
155 | argument = tmp.argument; | |
156 | argument_size = tmp.argument_size; | |
157 | stack = tmp.stack; | |
158 | stack_size = tmp.stack_size; | |
159 | ||
160 | return ret; | |
161 | } | |
162 | ||
163 | void list () | |
164 | { | |
165 | int i; | |
166 | fprintf (stdout, "programs:"); | |
167 | for (i = 0; i < nb_programs; i++) { | |
168 | fprintf (stdout, " %d", (programs + i)->id); | |
169 | } | |
170 | fprintf (stdout, "\n"); | |
171 | } | |
172 | ||
173 | void edit (int id) | |
174 | { | |
175 | int i, n = -1; | |
176 | ||
177 | if (programs) { | |
178 | ||
179 | /* look for program */ | |
180 | for (i = 0; i < nb_programs; i++) { | |
181 | if ((programs + i)->id == id) { | |
182 | n = i; | |
183 | break; | |
184 | } | |
185 | } | |
186 | } | |
187 | if (n == -1) { | |
188 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
189 | return; | |
190 | } | |
191 | ||
192 | /* set string program */ | |
193 | fprintf (stdout, "edit: %s\n", (programs + n)->string); | |
194 | } | |
195 | ||
196 | void savestring (int id, char *string) | |
197 | { | |
198 | int i, n = -1; | |
199 | ||
200 | if (programs) { | |
201 | ||
202 | /* look for program */ | |
203 | for (i = 0; i < nb_programs; i++) { | |
204 | if ((programs + i)->id == id) { | |
205 | n = i; | |
206 | break; | |
207 | } | |
208 | } | |
209 | } | |
210 | ||
211 | /* unnecesary code */ | |
212 | //if (n == -1) { | |
213 | // VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
214 | // return; | |
215 | //} | |
216 | //if ((programs + n)->string) { | |
217 | // free ((programs + n)->string); | |
218 | //} | |
219 | ||
220 | if (string) { | |
221 | (programs + n)->string = strdup (string); | |
222 | } | |
223 | } | |
224 | ||
225 | void del (int id) | |
226 | { | |
227 | int i, j, n = -1; | |
228 | ||
229 | if (programs) { | |
230 | ||
231 | /* look for program */ | |
232 | for (i = 0; i < nb_programs; i++) { | |
233 | if ((programs + i)->id == id) { | |
234 | n = i; | |
235 | break; | |
236 | } | |
237 | } | |
238 | } | |
239 | if (n == -1) { | |
240 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
241 | return; | |
242 | } | |
243 | ||
244 | /* clean program */ | |
245 | if ((programs + n)->storage) { | |
246 | free ((programs + n)->storage); | |
247 | } | |
248 | if ((programs + n)->stack) { | |
249 | free ((programs + n)->stack); | |
250 | } | |
251 | if ((programs + n)->root) { | |
252 | delelement ((programs + n)->root); | |
253 | } | |
254 | if ((programs + n)->string) { | |
255 | free ((programs + n)->string); | |
256 | } | |
257 | ||
258 | /* remove entry */ | |
259 | workspace_t *tmp = (workspace_t *) callocordie (nb_programs - 1, sizeof (workspace_t)); | |
260 | for (i = 0, j = 0; i < nb_programs; i++) { | |
261 | if (i != n) { | |
262 | memcpy (tmp + j, programs + i, sizeof (workspace_t)); | |
263 | j++; | |
264 | } | |
265 | } | |
266 | free (programs); | |
267 | programs = tmp; | |
268 | nb_programs--; | |
269 | } | |
270 | ||
271 | /* vim: set ts=4 sw=4 et: */ |