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Commit | Line | Data |
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7ac48069 | 1 | /* $Id$ |
32cfe906 | 2 | * |
7ac48069 | 3 | * Deal with incremental updates |
5eaef520 | 4 | * |
7ac48069 | 5 | * Copyright (C) 1989-1998 by the Massachusetts Institute of Technology |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
32cfe906 | 8 | */ |
9 | ||
32cfe906 | 10 | #include <mit-copyright.h> |
32cfe906 | 11 | #include "mr_server.h" |
03c05291 | 12 | #include "query.h" |
13 | #include "qrtn.h" | |
7ac48069 | 14 | |
15 | #include <signal.h> | |
85330553 | 16 | #include <stdio.h> |
7ac48069 | 17 | #include <stdlib.h> |
18 | #include <string.h> | |
19 | #include <unistd.h> | |
20 | ||
45bf7573 | 21 | EXEC SQL INCLUDE sqlca; |
32cfe906 | 22 | |
7ac48069 | 23 | RCSID("$Header$"); |
24 | ||
32cfe906 | 25 | extern char *whoami; |
03c05291 | 26 | extern char *table_name[]; |
27 | extern int num_tables; | |
32cfe906 | 28 | |
29 | int inc_pid = 0; | |
30 | int inc_running = 0; | |
31 | time_t inc_started; | |
32 | ||
33 | #define MAXARGC 15 | |
34 | ||
03c05291 | 35 | EXEC SQL WHENEVER SQLERROR DO dbmserr(); |
45bf7573 | 36 | |
32cfe906 | 37 | /* structures to save before args */ |
32cfe906 | 38 | static char *before[MAXARGC]; |
32cfe906 | 39 | static int beforec; |
03c05291 | 40 | static enum tables beforetable; |
32cfe906 | 41 | |
42 | /* structures to save after args */ | |
32cfe906 | 43 | static char *after[MAXARGC]; |
32cfe906 | 44 | static int afterc; |
45 | ||
46 | /* structures to save entire sets of incremental changes */ | |
47 | struct save_queue *incremental_sq = NULL; | |
48 | struct save_queue *incremental_exec = NULL; | |
49 | struct iupdate { | |
5eaef520 | 50 | char *table; |
51 | int beforec; | |
52 | char **before; | |
53 | int afterc; | |
54 | char **after; | |
55 | char *service; | |
32cfe906 | 56 | }; |
57 | ||
03c05291 | 58 | void next_incremental(void); |
fc053494 | 59 | char **copy_argv(char **argv, int argc); |
03c05291 | 60 | void free_argv(char **argv, int argc); |
61 | int table_num(char *table); | |
32cfe906 | 62 | |
03c05291 | 63 | void incremental_init(void) |
32cfe906 | 64 | { |
5eaef520 | 65 | int i; |
32cfe906 | 66 | |
5eaef520 | 67 | if (!incremental_sq) |
68 | incremental_sq = sq_create(); | |
69 | if (!incremental_exec) | |
70 | incremental_exec = sq_create(); | |
03c05291 | 71 | |
5eaef520 | 72 | for (i = 0; i < MAXARGC; i++) |
73 | { | |
e688520a | 74 | before[i] = xmalloc(MAX_FIELD_WIDTH); |
75 | after[i] = xmalloc(MAX_FIELD_WIDTH); | |
03c05291 | 76 | } |
32cfe906 | 77 | } |
78 | ||
79 | ||
03c05291 | 80 | /* record the state of a table row before it is changed */ |
81 | ||
5eaef520 | 82 | void incremental_before(enum tables table, char *qual, char **argv) |
32cfe906 | 83 | { |
5eaef520 | 84 | EXEC SQL BEGIN DECLARE SECTION; |
85 | int id; | |
86 | EXEC SQL END DECLARE SECTION; | |
87 | ||
88acd4d3 | 88 | char *name, *name2; |
5eaef520 | 89 | |
90 | beforetable = table; | |
91 | ||
92 | switch (table) | |
93 | { | |
94 | case USERS_TABLE: | |
d6759517 | 95 | sprintf(stmt_buf, "SELECT u.login, u.unix_uid, u.shell, " |
96 | "u.winconsoleshell, u.last, u.first, u.middle, u.status, " | |
88acd4d3 | 97 | "u.clearid, u.type, u.users_id FROM users u WHERE %s", qual); |
5eaef520 | 98 | dosql(before); |
88acd4d3 | 99 | beforec = 11; |
5eaef520 | 100 | break; |
101 | case MACHINE_TABLE: | |
88acd4d3 | 102 | sprintf(stmt_buf, "SELECT m.name, m.vendor, m.mach_id FROM machine m " |
5eaef520 | 103 | "WHERE %s", qual); |
104 | dosql(before); | |
88acd4d3 | 105 | beforec = 3; |
5eaef520 | 106 | break; |
e688520a | 107 | case CLUSTERS_TABLE: |
88acd4d3 | 108 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, " |
109 | "c.clu_id FROM clusters c WHERE %s", qual); | |
5eaef520 | 110 | dosql(before); |
88acd4d3 | 111 | beforec = 4; |
5eaef520 | 112 | break; |
bb5c9457 | 113 | case CONTAINERS_TABLE: |
114 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, c.contact, " | |
115 | "c.acl_type, c.acl_id, c.cnt_id FROM containers c WHERE %s", | |
116 | qual); | |
117 | dosql(before); | |
118 | beforec = 7; | |
429aec78 | 119 | name = xmalloc(0); |
120 | id = atoi(before[5]); | |
121 | if (!strncmp(before[4], "USER", 4)) | |
122 | { | |
123 | id_to_name(id, USERS_TABLE, &name); | |
124 | strcpy(before[5], name); | |
125 | } | |
126 | else if (!strncmp(before[4], "LIST", 4)) | |
127 | { | |
128 | id_to_name(id, LIST_TABLE, &name); | |
129 | strcpy(before[5], name); | |
130 | } | |
131 | else if (!strncmp(before[4], "KERBEROS", 8)) | |
132 | { | |
133 | id_to_name(id, STRINGS_TABLE, &name); | |
134 | strcpy(before[5], name); | |
135 | } | |
bb5c9457 | 136 | break; |
5eaef520 | 137 | case MCMAP_TABLE: |
138 | strcpy(before[0], argv[0]); | |
139 | strcpy(before[1], argv[1]); | |
140 | beforec = 2; | |
141 | break; | |
142 | case SVC_TABLE: | |
143 | strcpy(before[0], argv[0]); | |
144 | strcpy(before[1], argv[1]); | |
145 | strcpy(before[2], argv[2]); | |
146 | beforec = 3; | |
147 | break; | |
148 | case FILESYS_TABLE: | |
149 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " | |
150 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " | |
88acd4d3 | 151 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
152 | "WHERE %s", qual); | |
5eaef520 | 153 | dosql(before); |
88acd4d3 | 154 | name = xmalloc(0); |
5eaef520 | 155 | id = atoi(before[2]); |
156 | id_to_name(id, MACHINE_TABLE, &name); | |
157 | strcpy(before[2], name); | |
158 | id = atoi(before[7]); | |
159 | id_to_name(id, USERS_TABLE, &name); | |
160 | strcpy(before[7], name); | |
161 | id = atoi(before[8]); | |
162 | id_to_name(id, LIST_TABLE, &name); | |
163 | strcpy(before[8], name); | |
164 | free(name); | |
88acd4d3 | 165 | beforec = 12; |
5eaef520 | 166 | break; |
167 | case QUOTA_TABLE: | |
168 | strcpy(before[0], "?"); | |
169 | strcpy(before[1], argv[1]); | |
170 | strcpy(before[2], "?"); | |
171 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " | |
172 | "WHERE %s AND fs.filsys_id = q.filsys_id", qual); | |
173 | dosql(&(before[3])); | |
174 | strcpy(before[2], argv[1]); | |
175 | beforec = 5; | |
176 | break; | |
177 | case LIST_TABLE: | |
178 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " | |
179 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " | |
88acd4d3 | 180 | "l.description, l.list_id FROM list l WHERE %s", qual); |
5eaef520 | 181 | dosql(before); |
88acd4d3 | 182 | beforec = 11; |
5eaef520 | 183 | break; |
184 | case IMEMBERS_TABLE: | |
185 | id = (int) argv[0]; | |
186 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " | |
187 | "grouplist, gid FROM list WHERE list_id = %d", id); | |
188 | dosql(&(before[3])); | |
88acd4d3 | 189 | name = xmalloc(0); |
5eaef520 | 190 | id_to_name(id, LIST_TABLE, &name); |
88acd4d3 | 191 | name2 = xmalloc(0); |
5eaef520 | 192 | strcpy(before[0], name); |
193 | strcpy(before[1], argv[1]); | |
194 | id = (int) argv[2]; | |
88acd4d3 | 195 | beforec = 10; |
5eaef520 | 196 | if (!strcmp(before[1], "USER")) |
197 | { | |
88acd4d3 | 198 | id_to_name(id, USERS_TABLE, &name2); |
199 | EXEC SQL SELECT status, users_id INTO :before[9], :before[11] | |
200 | FROM users WHERE users_id = :id; | |
201 | EXEC SQL SELECT list_id INTO :before[10] FROM list | |
202 | WHERE name = :name; | |
203 | beforec = 12; | |
5eaef520 | 204 | } |
205 | else if (!strcmp(before[1], "LIST")) | |
88acd4d3 | 206 | { |
207 | id_to_name(id, LIST_TABLE, &name2); | |
208 | EXEC SQL SELECT list_id INTO :before[9] FROM list | |
209 | WHERE name = :name; | |
210 | sprintf(before[10], "%d", id); | |
211 | beforec = 11; | |
212 | } | |
5eaef520 | 213 | else if (!strcmp(before[1], "STRING") || !strcmp(before[1], "KERBEROS")) |
88acd4d3 | 214 | { |
215 | id_to_name(id, STRINGS_TABLE, &name2); | |
216 | EXEC SQL SELECT list_id INTO :before[9] FROM list | |
217 | WHERE name = :name; | |
218 | } | |
5f7b0741 | 219 | else if (!strcmp(before[1], "MACHINE")) |
220 | { | |
221 | id_to_name(id, MACHINE_TABLE, &name2); | |
53a1afb6 | 222 | EXEC SQL SELECT list_id INTO :before[9] FROM list |
5f7b0741 | 223 | WHERE name = :name; |
53a1afb6 | 224 | sprintf(before[10], "%d", id); |
225 | beforec = 11; | |
5f7b0741 | 226 | } |
88acd4d3 | 227 | strcpy(before[2], name2); |
5eaef520 | 228 | free(name); |
88acd4d3 | 229 | free(name2); |
5eaef520 | 230 | break; |
231 | default: | |
03c05291 | 232 | /* |
233 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", | |
234 | table_name[table]); | |
235 | */ | |
5eaef520 | 236 | break; |
237 | } | |
a313cad2 | 238 | } |
32cfe906 | 239 | |
240 | ||
03c05291 | 241 | void incremental_clear_before(void) |
32cfe906 | 242 | { |
5eaef520 | 243 | beforec = 0; |
32cfe906 | 244 | } |
245 | ||
32cfe906 | 246 | |
03c05291 | 247 | /* add an element to the incremental queue for the changed row */ |
32cfe906 | 248 | |
5eaef520 | 249 | void incremental_after(enum tables table, char *qual, char **argv) |
a313cad2 | 250 | { |
88acd4d3 | 251 | char *name, *name2; |
5eaef520 | 252 | EXEC SQL BEGIN DECLARE SECTION; |
253 | int id; | |
254 | EXEC SQL END DECLARE SECTION; | |
255 | struct iupdate *iu; | |
256 | ||
257 | switch (table) | |
258 | { | |
259 | case USERS_TABLE: | |
d6759517 | 260 | sprintf(stmt_buf, "SELECT u.login, u.unix_uid, u.shell, " |
261 | "u.winconsoleshell, u.last, u.first, u.middle, u.status, " | |
88acd4d3 | 262 | "u.clearid, u.type, u.users_id FROM users u WHERE %s", qual); |
5eaef520 | 263 | dosql(after); |
88acd4d3 | 264 | afterc = 11; |
5eaef520 | 265 | break; |
266 | case MACHINE_TABLE: | |
88acd4d3 | 267 | sprintf(stmt_buf, "SELECT m.name, m.vendor, m.mach_id FROM machine m " |
5eaef520 | 268 | "WHERE %s", qual); |
269 | dosql(after); | |
88acd4d3 | 270 | afterc = 3; |
5eaef520 | 271 | break; |
e688520a | 272 | case CLUSTERS_TABLE: |
88acd4d3 | 273 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, " |
274 | "c.clu_id FROM clusters c WHERE %s", qual); | |
5eaef520 | 275 | dosql(after); |
88acd4d3 | 276 | afterc = 4; |
5eaef520 | 277 | break; |
bb5c9457 | 278 | case CONTAINERS_TABLE: |
279 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, c.contact, " | |
280 | "c.acl_type, c.acl_id, c.cnt_id FROM containers c WHERE %s", | |
281 | qual); | |
282 | dosql(after); | |
283 | afterc = 7; | |
429aec78 | 284 | name = xmalloc(0); |
285 | id = atoi(after[5]); | |
286 | if (!strncmp(after[4], "USER", 4)) | |
287 | { | |
288 | id_to_name(id, USERS_TABLE, &name); | |
289 | strcpy(after[5], name); | |
290 | } | |
291 | else if (!strncmp(after[4], "LIST", 4)) | |
292 | { | |
293 | id_to_name(id, LIST_TABLE, &name); | |
294 | strcpy(after[5], name); | |
295 | } | |
296 | else if (!strncmp(after[4], "KERBEROS", 8)) | |
297 | { | |
298 | id_to_name(id, STRINGS_TABLE, &name); | |
299 | strcpy(after[5], name); | |
300 | } | |
bb5c9457 | 301 | break; |
5eaef520 | 302 | case MCMAP_TABLE: |
303 | strcpy(after[0], argv[0]); | |
304 | strcpy(after[1], argv[1]); | |
305 | afterc = 2; | |
306 | break; | |
307 | case SVC_TABLE: | |
308 | strcpy(after[0], argv[0]); | |
309 | strcpy(after[1], argv[1]); | |
310 | strcpy(after[2], argv[2]); | |
311 | afterc = 3; | |
312 | break; | |
313 | case FILESYS_TABLE: | |
314 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " | |
315 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " | |
88acd4d3 | 316 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
317 | "WHERE %s", qual); | |
5eaef520 | 318 | dosql(after); |
88acd4d3 | 319 | name = xmalloc(0); |
5eaef520 | 320 | id = atoi(after[2]); |
321 | id_to_name(id, MACHINE_TABLE, &name); | |
322 | strcpy(after[2], name); | |
323 | id = atoi(after[7]); | |
324 | id_to_name(id, USERS_TABLE, &name); | |
325 | strcpy(after[7], name); | |
326 | id = atoi(after[8]); | |
327 | id_to_name(id, LIST_TABLE, &name); | |
328 | strcpy(after[8], name); | |
329 | free(name); | |
88acd4d3 | 330 | afterc = 12; |
5eaef520 | 331 | break; |
332 | case QUOTA_TABLE: | |
333 | strcpy(after[0], "?"); | |
334 | strcpy(after[1], argv[1]); | |
335 | strcpy(after[2], "?"); | |
336 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " | |
337 | "WHERE %s and fs.filsys_id = q.filsys_id and q.type = '%s'", | |
338 | qual, argv[1]); | |
339 | dosql(&(after[3])); | |
340 | afterc = 5; | |
341 | break; | |
342 | case LIST_TABLE: | |
343 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " | |
344 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " | |
88acd4d3 | 345 | "l.description, l.list_id FROM list l WHERE %s", qual); |
5eaef520 | 346 | dosql(after); |
88acd4d3 | 347 | afterc = 11; |
5eaef520 | 348 | break; |
349 | case IMEMBERS_TABLE: | |
350 | id = (int) argv[0]; | |
351 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " | |
352 | "grouplist, gid FROM list WHERE list_id = %d", id); | |
353 | dosql(&(after[3])); | |
88acd4d3 | 354 | name = xmalloc(0); |
5eaef520 | 355 | id_to_name(id, LIST_TABLE, &name); |
88acd4d3 | 356 | name2 = xmalloc(0); |
5eaef520 | 357 | strcpy(after[0], name); |
358 | strcpy(after[1], argv[1]); | |
359 | id = (int) argv[2]; | |
88acd4d3 | 360 | afterc = 10; |
5eaef520 | 361 | if (!strcmp(after[1], "USER")) |
362 | { | |
88acd4d3 | 363 | id_to_name(id, USERS_TABLE, &name2); |
364 | EXEC SQL SELECT status, users_id INTO :after[9], :after[11] | |
365 | FROM users WHERE users_id = :id; | |
366 | EXEC SQL SELECT list_id INTO :after[10] FROM list | |
367 | WHERE name = :name; | |
368 | afterc = 12; | |
32cfe906 | 369 | } |
5eaef520 | 370 | else if (!strcmp(after[1], "LIST")) |
88acd4d3 | 371 | { |
372 | id_to_name(id, LIST_TABLE, &name2); | |
373 | EXEC SQL SELECT list_id INTO :after[9] FROM list | |
374 | WHERE name = :name; | |
375 | sprintf(after[10], "%d", id); | |
376 | afterc = 11; | |
377 | } | |
5eaef520 | 378 | else if (!strcmp(after[1], "STRING") || !strcmp(after[1], "KERBEROS")) |
88acd4d3 | 379 | { |
380 | id_to_name(id, STRINGS_TABLE, &name2); | |
381 | EXEC SQL SELECT list_id INTO :after[9] FROM list | |
382 | WHERE name = :name; | |
383 | } | |
5f7b0741 | 384 | else if (!strcmp(after[1], "MACHINE")) |
385 | { | |
386 | id_to_name(id, MACHINE_TABLE, &name2); | |
53a1afb6 | 387 | EXEC SQL SELECT list_id INTO :after[9] FROM list |
5f7b0741 | 388 | WHERE name = :name; |
53a1afb6 | 389 | sprintf(after[10], "%d", id); |
390 | afterc = 11; | |
5f7b0741 | 391 | } |
88acd4d3 | 392 | strcpy(after[2], name2); |
5eaef520 | 393 | free(name); |
88acd4d3 | 394 | free(name2); |
5eaef520 | 395 | break; |
396 | case NO_TABLE: | |
397 | afterc = 0; | |
398 | table = beforetable; | |
399 | break; | |
400 | default: | |
03c05291 | 401 | /* |
402 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", | |
403 | table_name[table]); | |
404 | */ | |
5eaef520 | 405 | break; |
32cfe906 | 406 | } |
5eaef520 | 407 | |
e688520a | 408 | iu = xmalloc(sizeof(struct iupdate)); |
5eaef520 | 409 | iu->table = table_name[table]; |
410 | iu->beforec = beforec; | |
fc053494 | 411 | iu->before = copy_argv(before, beforec); |
5eaef520 | 412 | iu->afterc = afterc; |
fc053494 | 413 | iu->after = copy_argv(after, afterc); |
5eaef520 | 414 | sq_save_data(incremental_sq, iu); |
a313cad2 | 415 | } |
32cfe906 | 416 | |
03c05291 | 417 | void incremental_clear_after(void) |
418 | { | |
5eaef520 | 419 | incremental_after(NO_TABLE, NULL, NULL); |
03c05291 | 420 | } |
421 | ||
32cfe906 | 422 | |
423 | /* Called when the current transaction is committed to start any queued | |
424 | * incremental updates. This caches the update table the first time it | |
425 | * is called. | |
426 | */ | |
427 | ||
428 | struct inc_cache { | |
5eaef520 | 429 | struct inc_cache *next; |
430 | char *table, *service; | |
32cfe906 | 431 | }; |
432 | ||
433 | ||
03c05291 | 434 | void incremental_update(void) |
32cfe906 | 435 | { |
5eaef520 | 436 | static int inited = 0; |
437 | static struct inc_cache *cache; | |
438 | struct inc_cache *c; | |
439 | EXEC SQL BEGIN DECLARE SECTION; | |
e688520a | 440 | char tab[INCREMENTAL_TABLE_NAME_SIZE], serv[INCREMENTAL_SERVICE_SIZE]; |
5eaef520 | 441 | EXEC SQL END DECLARE SECTION; |
772c26b3 | 442 | struct iupdate *iu, *iu_save; |
5eaef520 | 443 | |
444 | if (!inited) | |
445 | { | |
446 | inited++; | |
447 | ||
448 | EXEC SQL DECLARE inc CURSOR FOR SELECT table_name, service | |
449 | FROM incremental; | |
450 | EXEC SQL OPEN inc; | |
451 | while (1) | |
452 | { | |
453 | EXEC SQL FETCH inc INTO :tab, :serv; | |
454 | if (sqlca.sqlcode) | |
455 | break; | |
e688520a | 456 | c = xmalloc(sizeof(struct inc_cache)); |
5eaef520 | 457 | c->next = cache; |
e688520a | 458 | c->table = xstrdup(strtrim(tab)); |
459 | c->service = xstrdup(strtrim(serv)); | |
5eaef520 | 460 | cache = c; |
32cfe906 | 461 | } |
5eaef520 | 462 | EXEC SQL CLOSE inc; |
463 | EXEC SQL COMMIT WORK; | |
32cfe906 | 464 | } |
465 | ||
5eaef520 | 466 | while (sq_remove_data(incremental_sq, &iu)) |
467 | { | |
468 | for (c = cache; c; c = c->next) | |
469 | { | |
470 | if (!strcmp(c->table, iu->table)) | |
471 | { | |
472 | iu->service = c->service; | |
772c26b3 | 473 | iu_save = xmalloc(sizeof(struct iupdate)); |
474 | iu_save->service = iu->service; | |
475 | iu_save->table = iu->table; | |
476 | iu_save->beforec = iu->beforec; | |
477 | iu_save->afterc = iu->afterc; | |
478 | iu_save->before = copy_argv(iu->before, iu->beforec); | |
479 | iu_save->after = copy_argv(iu->after, iu->afterc); | |
480 | sq_save_data(incremental_exec, iu_save); | |
32cfe906 | 481 | } |
482 | } | |
e688520a | 483 | if (!c) |
484 | { | |
485 | free_argv(iu->before, iu->beforec); | |
486 | free_argv(iu->after, iu->afterc); | |
487 | free(iu); | |
488 | } | |
32cfe906 | 489 | } |
5eaef520 | 490 | if (inc_running == 0) |
491 | next_incremental(); | |
32cfe906 | 492 | } |
493 | ||
f18a32ee | 494 | /* Pro*C 2.2.4 can't cope with the sigset_t below, at least in Solaris 2.6. |
495 | We add DEFINE=_PROC_ to the proc invocation and then #ifndef that around | |
496 | this function so proc will pass it through without reading it. */ | |
32cfe906 | 497 | |
f18a32ee | 498 | #ifndef _PROC_ |
03c05291 | 499 | void next_incremental(void) |
32cfe906 | 500 | { |
5eaef520 | 501 | struct iupdate *iu; |
e688520a | 502 | char *argv[MAXARGC * 2 + 4], cafter[3], cbefore[3], prog[MAXPATHLEN]; |
5eaef520 | 503 | int i; |
504 | sigset_t sigs; | |
505 | ||
506 | if (!incremental_exec) | |
507 | incremental_init(); | |
508 | ||
509 | if (sq_empty(incremental_exec) || | |
510 | (inc_running && now - inc_started < INC_TIMEOUT)) | |
511 | return; | |
512 | ||
513 | if (inc_running) | |
514 | com_err(whoami, 0, "incremental timeout on pid %d", inc_pid); | |
515 | ||
516 | sq_remove_data(incremental_exec, &iu); | |
517 | argv[1] = iu->table; | |
518 | sprintf(cbefore, "%d", iu->beforec); | |
519 | argv[2] = cbefore; | |
520 | sprintf(cafter, "%d", iu->afterc); | |
521 | argv[3] = cafter; | |
522 | for (i = 0; i < iu->beforec; i++) | |
523 | argv[4 + i] = iu->before[i]; | |
524 | for (i = 0; i < iu->afterc; i++) | |
525 | argv[4 + iu->beforec + i] = iu->after[i]; | |
526 | ||
527 | sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service); | |
528 | argv[0] = prog; | |
529 | argv[4 + iu->beforec + iu->afterc] = 0; | |
530 | ||
531 | sigemptyset(&sigs); | |
532 | sigaddset(&sigs, SIGCHLD); | |
533 | sigprocmask(SIG_BLOCK, &sigs, NULL); | |
534 | inc_pid = vfork(); | |
535 | switch (inc_pid) | |
536 | { | |
32cfe906 | 537 | case 0: |
5eaef520 | 538 | execv(prog, argv); |
539 | _exit(1); | |
32cfe906 | 540 | case -1: |
5eaef520 | 541 | com_err(whoami, 0, "Failed to start incremental update"); |
542 | break; | |
32cfe906 | 543 | default: |
5eaef520 | 544 | inc_running = 1; |
545 | inc_started = now; | |
32cfe906 | 546 | } |
5eaef520 | 547 | sigprocmask(SIG_UNBLOCK, &sigs, NULL); |
32cfe906 | 548 | |
5eaef520 | 549 | free_argv(iu->before, iu->beforec); |
550 | free_argv(iu->after, iu->afterc); | |
551 | free(iu); | |
32cfe906 | 552 | } |
f18a32ee | 553 | #endif |
32cfe906 | 554 | |
555 | /* Called when the current transaction is aborted to throw away any queued | |
556 | * incremental updates | |
557 | */ | |
558 | ||
03c05291 | 559 | void incremental_flush(void) |
32cfe906 | 560 | { |
5eaef520 | 561 | struct iupdate *iu; |
32cfe906 | 562 | |
5eaef520 | 563 | while (sq_get_data(incremental_sq, &iu)) |
564 | { | |
565 | free_argv(iu->before, iu->beforec); | |
566 | free_argv(iu->after, iu->afterc); | |
567 | free(iu); | |
32cfe906 | 568 | } |
5eaef520 | 569 | sq_destroy(incremental_sq); |
570 | incremental_sq = sq_create(); | |
32cfe906 | 571 | } |
572 | ||
573 | ||
fc053494 | 574 | char **copy_argv(char **argv, int argc) |
575 | { | |
576 | char **ret = xmalloc(sizeof(char *) * argc); | |
577 | while (--argc >= 0) | |
578 | ret[argc] = xstrdup(strtrim(argv[argc])); | |
579 | return ret; | |
580 | } | |
581 | ||
5eaef520 | 582 | void free_argv(char **argv, int argc) |
32cfe906 | 583 | { |
5eaef520 | 584 | while (--argc >= 0) |
585 | free(argv[argc]); | |
586 | free(argv); | |
32cfe906 | 587 | } |
03c05291 | 588 | |
589 | int table_num(char *name) | |
590 | { | |
591 | int i; | |
592 | ||
5eaef520 | 593 | for (i = num_tables - 1; i; i--) |
594 | { | |
595 | if (!strcmp(table_name[i], name)) | |
596 | break; | |
597 | } | |
03c05291 | 598 | |
599 | return i; /* 0 = "none" if no match */ | |
600 | } |