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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; | |
b227bf97 | 142 | case MCNTMAP_TABLE: |
143 | strcpy(before[0], argv[0]); | |
144 | strcpy(before[1], argv[1]); | |
145 | name_to_id(before[0], MACHINE_TABLE, &id); | |
146 | sprintf(before[2], "%d", id); | |
147 | name_to_id(before[1], CONTAINERS_TABLE, &id); | |
148 | sprintf(before[3], "%d", id); | |
149 | beforec = 4; | |
150 | break; | |
5eaef520 | 151 | case SVC_TABLE: |
152 | strcpy(before[0], argv[0]); | |
153 | strcpy(before[1], argv[1]); | |
154 | strcpy(before[2], argv[2]); | |
155 | beforec = 3; | |
156 | break; | |
157 | case FILESYS_TABLE: | |
158 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " | |
159 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " | |
88acd4d3 | 160 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
161 | "WHERE %s", qual); | |
5eaef520 | 162 | dosql(before); |
88acd4d3 | 163 | name = xmalloc(0); |
5eaef520 | 164 | id = atoi(before[2]); |
165 | id_to_name(id, MACHINE_TABLE, &name); | |
166 | strcpy(before[2], name); | |
167 | id = atoi(before[7]); | |
168 | id_to_name(id, USERS_TABLE, &name); | |
169 | strcpy(before[7], name); | |
170 | id = atoi(before[8]); | |
171 | id_to_name(id, LIST_TABLE, &name); | |
172 | strcpy(before[8], name); | |
173 | free(name); | |
88acd4d3 | 174 | beforec = 12; |
5eaef520 | 175 | break; |
176 | case QUOTA_TABLE: | |
177 | strcpy(before[0], "?"); | |
178 | strcpy(before[1], argv[1]); | |
179 | strcpy(before[2], "?"); | |
180 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " | |
181 | "WHERE %s AND fs.filsys_id = q.filsys_id", qual); | |
182 | dosql(&(before[3])); | |
183 | strcpy(before[2], argv[1]); | |
184 | beforec = 5; | |
185 | break; | |
186 | case LIST_TABLE: | |
187 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " | |
188 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " | |
88acd4d3 | 189 | "l.description, l.list_id FROM list l WHERE %s", qual); |
5eaef520 | 190 | dosql(before); |
88acd4d3 | 191 | beforec = 11; |
5eaef520 | 192 | break; |
193 | case IMEMBERS_TABLE: | |
194 | id = (int) argv[0]; | |
195 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " | |
196 | "grouplist, gid FROM list WHERE list_id = %d", id); | |
197 | dosql(&(before[3])); | |
88acd4d3 | 198 | name = xmalloc(0); |
5eaef520 | 199 | id_to_name(id, LIST_TABLE, &name); |
88acd4d3 | 200 | name2 = xmalloc(0); |
5eaef520 | 201 | strcpy(before[0], name); |
202 | strcpy(before[1], argv[1]); | |
203 | id = (int) argv[2]; | |
88acd4d3 | 204 | beforec = 10; |
5eaef520 | 205 | if (!strcmp(before[1], "USER")) |
206 | { | |
88acd4d3 | 207 | id_to_name(id, USERS_TABLE, &name2); |
208 | EXEC SQL SELECT status, users_id INTO :before[9], :before[11] | |
209 | FROM users WHERE users_id = :id; | |
210 | EXEC SQL SELECT list_id INTO :before[10] FROM list | |
211 | WHERE name = :name; | |
212 | beforec = 12; | |
5eaef520 | 213 | } |
214 | else if (!strcmp(before[1], "LIST")) | |
88acd4d3 | 215 | { |
216 | id_to_name(id, LIST_TABLE, &name2); | |
217 | EXEC SQL SELECT list_id INTO :before[9] FROM list | |
218 | WHERE name = :name; | |
219 | sprintf(before[10], "%d", id); | |
220 | beforec = 11; | |
221 | } | |
5eaef520 | 222 | else if (!strcmp(before[1], "STRING") || !strcmp(before[1], "KERBEROS")) |
88acd4d3 | 223 | { |
224 | id_to_name(id, STRINGS_TABLE, &name2); | |
225 | EXEC SQL SELECT list_id INTO :before[9] FROM list | |
226 | WHERE name = :name; | |
227 | } | |
5f7b0741 | 228 | else if (!strcmp(before[1], "MACHINE")) |
229 | { | |
230 | id_to_name(id, MACHINE_TABLE, &name2); | |
53a1afb6 | 231 | EXEC SQL SELECT list_id INTO :before[9] FROM list |
5f7b0741 | 232 | WHERE name = :name; |
53a1afb6 | 233 | sprintf(before[10], "%d", id); |
234 | beforec = 11; | |
5f7b0741 | 235 | } |
88acd4d3 | 236 | strcpy(before[2], name2); |
5eaef520 | 237 | free(name); |
88acd4d3 | 238 | free(name2); |
5eaef520 | 239 | break; |
240 | default: | |
03c05291 | 241 | /* |
242 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", | |
243 | table_name[table]); | |
244 | */ | |
5eaef520 | 245 | break; |
246 | } | |
a313cad2 | 247 | } |
32cfe906 | 248 | |
249 | ||
03c05291 | 250 | void incremental_clear_before(void) |
32cfe906 | 251 | { |
5eaef520 | 252 | beforec = 0; |
32cfe906 | 253 | } |
254 | ||
32cfe906 | 255 | |
03c05291 | 256 | /* add an element to the incremental queue for the changed row */ |
32cfe906 | 257 | |
5eaef520 | 258 | void incremental_after(enum tables table, char *qual, char **argv) |
a313cad2 | 259 | { |
88acd4d3 | 260 | char *name, *name2; |
5eaef520 | 261 | EXEC SQL BEGIN DECLARE SECTION; |
262 | int id; | |
263 | EXEC SQL END DECLARE SECTION; | |
264 | struct iupdate *iu; | |
265 | ||
266 | switch (table) | |
267 | { | |
268 | case USERS_TABLE: | |
d6759517 | 269 | sprintf(stmt_buf, "SELECT u.login, u.unix_uid, u.shell, " |
270 | "u.winconsoleshell, u.last, u.first, u.middle, u.status, " | |
88acd4d3 | 271 | "u.clearid, u.type, u.users_id FROM users u WHERE %s", qual); |
5eaef520 | 272 | dosql(after); |
88acd4d3 | 273 | afterc = 11; |
5eaef520 | 274 | break; |
275 | case MACHINE_TABLE: | |
88acd4d3 | 276 | sprintf(stmt_buf, "SELECT m.name, m.vendor, m.mach_id FROM machine m " |
5eaef520 | 277 | "WHERE %s", qual); |
278 | dosql(after); | |
88acd4d3 | 279 | afterc = 3; |
5eaef520 | 280 | break; |
e688520a | 281 | case CLUSTERS_TABLE: |
88acd4d3 | 282 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, " |
283 | "c.clu_id FROM clusters c WHERE %s", qual); | |
5eaef520 | 284 | dosql(after); |
88acd4d3 | 285 | afterc = 4; |
5eaef520 | 286 | break; |
bb5c9457 | 287 | case CONTAINERS_TABLE: |
288 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, c.contact, " | |
289 | "c.acl_type, c.acl_id, c.cnt_id FROM containers c WHERE %s", | |
290 | qual); | |
291 | dosql(after); | |
292 | afterc = 7; | |
429aec78 | 293 | name = xmalloc(0); |
294 | id = atoi(after[5]); | |
295 | if (!strncmp(after[4], "USER", 4)) | |
296 | { | |
297 | id_to_name(id, USERS_TABLE, &name); | |
298 | strcpy(after[5], name); | |
299 | } | |
300 | else if (!strncmp(after[4], "LIST", 4)) | |
301 | { | |
302 | id_to_name(id, LIST_TABLE, &name); | |
303 | strcpy(after[5], name); | |
304 | } | |
305 | else if (!strncmp(after[4], "KERBEROS", 8)) | |
306 | { | |
307 | id_to_name(id, STRINGS_TABLE, &name); | |
308 | strcpy(after[5], name); | |
309 | } | |
bb5c9457 | 310 | break; |
5eaef520 | 311 | case MCMAP_TABLE: |
312 | strcpy(after[0], argv[0]); | |
313 | strcpy(after[1], argv[1]); | |
314 | afterc = 2; | |
315 | break; | |
b227bf97 | 316 | case MCNTMAP_TABLE: |
317 | strcpy(after[0], argv[0]); | |
318 | strcpy(after[1], argv[1]); | |
319 | name_to_id(after[0], MACHINE_TABLE, &id); | |
320 | sprintf(after[2], "%d", id); | |
321 | name_to_id(after[1], CONTAINERS_TABLE, &id); | |
322 | sprintf(after[3], "%d", id); | |
323 | afterc = 4; | |
324 | break; | |
5eaef520 | 325 | case SVC_TABLE: |
326 | strcpy(after[0], argv[0]); | |
327 | strcpy(after[1], argv[1]); | |
328 | strcpy(after[2], argv[2]); | |
329 | afterc = 3; | |
330 | break; | |
331 | case FILESYS_TABLE: | |
332 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " | |
333 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " | |
88acd4d3 | 334 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
335 | "WHERE %s", qual); | |
5eaef520 | 336 | dosql(after); |
88acd4d3 | 337 | name = xmalloc(0); |
5eaef520 | 338 | id = atoi(after[2]); |
339 | id_to_name(id, MACHINE_TABLE, &name); | |
340 | strcpy(after[2], name); | |
341 | id = atoi(after[7]); | |
342 | id_to_name(id, USERS_TABLE, &name); | |
343 | strcpy(after[7], name); | |
344 | id = atoi(after[8]); | |
345 | id_to_name(id, LIST_TABLE, &name); | |
346 | strcpy(after[8], name); | |
347 | free(name); | |
88acd4d3 | 348 | afterc = 12; |
5eaef520 | 349 | break; |
350 | case QUOTA_TABLE: | |
351 | strcpy(after[0], "?"); | |
352 | strcpy(after[1], argv[1]); | |
353 | strcpy(after[2], "?"); | |
354 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " | |
355 | "WHERE %s and fs.filsys_id = q.filsys_id and q.type = '%s'", | |
356 | qual, argv[1]); | |
357 | dosql(&(after[3])); | |
358 | afterc = 5; | |
359 | break; | |
360 | case LIST_TABLE: | |
361 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " | |
362 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " | |
88acd4d3 | 363 | "l.description, l.list_id FROM list l WHERE %s", qual); |
5eaef520 | 364 | dosql(after); |
88acd4d3 | 365 | afterc = 11; |
5eaef520 | 366 | break; |
367 | case IMEMBERS_TABLE: | |
368 | id = (int) argv[0]; | |
369 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " | |
370 | "grouplist, gid FROM list WHERE list_id = %d", id); | |
371 | dosql(&(after[3])); | |
88acd4d3 | 372 | name = xmalloc(0); |
5eaef520 | 373 | id_to_name(id, LIST_TABLE, &name); |
88acd4d3 | 374 | name2 = xmalloc(0); |
5eaef520 | 375 | strcpy(after[0], name); |
376 | strcpy(after[1], argv[1]); | |
377 | id = (int) argv[2]; | |
88acd4d3 | 378 | afterc = 10; |
5eaef520 | 379 | if (!strcmp(after[1], "USER")) |
380 | { | |
88acd4d3 | 381 | id_to_name(id, USERS_TABLE, &name2); |
382 | EXEC SQL SELECT status, users_id INTO :after[9], :after[11] | |
383 | FROM users WHERE users_id = :id; | |
384 | EXEC SQL SELECT list_id INTO :after[10] FROM list | |
385 | WHERE name = :name; | |
386 | afterc = 12; | |
32cfe906 | 387 | } |
5eaef520 | 388 | else if (!strcmp(after[1], "LIST")) |
88acd4d3 | 389 | { |
390 | id_to_name(id, LIST_TABLE, &name2); | |
391 | EXEC SQL SELECT list_id INTO :after[9] FROM list | |
392 | WHERE name = :name; | |
393 | sprintf(after[10], "%d", id); | |
394 | afterc = 11; | |
395 | } | |
5eaef520 | 396 | else if (!strcmp(after[1], "STRING") || !strcmp(after[1], "KERBEROS")) |
88acd4d3 | 397 | { |
398 | id_to_name(id, STRINGS_TABLE, &name2); | |
399 | EXEC SQL SELECT list_id INTO :after[9] FROM list | |
400 | WHERE name = :name; | |
401 | } | |
5f7b0741 | 402 | else if (!strcmp(after[1], "MACHINE")) |
403 | { | |
404 | id_to_name(id, MACHINE_TABLE, &name2); | |
53a1afb6 | 405 | EXEC SQL SELECT list_id INTO :after[9] FROM list |
5f7b0741 | 406 | WHERE name = :name; |
53a1afb6 | 407 | sprintf(after[10], "%d", id); |
408 | afterc = 11; | |
5f7b0741 | 409 | } |
88acd4d3 | 410 | strcpy(after[2], name2); |
5eaef520 | 411 | free(name); |
88acd4d3 | 412 | free(name2); |
5eaef520 | 413 | break; |
414 | case NO_TABLE: | |
415 | afterc = 0; | |
416 | table = beforetable; | |
417 | break; | |
418 | default: | |
03c05291 | 419 | /* |
420 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", | |
421 | table_name[table]); | |
422 | */ | |
5eaef520 | 423 | break; |
32cfe906 | 424 | } |
5eaef520 | 425 | |
e688520a | 426 | iu = xmalloc(sizeof(struct iupdate)); |
5eaef520 | 427 | iu->table = table_name[table]; |
428 | iu->beforec = beforec; | |
fc053494 | 429 | iu->before = copy_argv(before, beforec); |
5eaef520 | 430 | iu->afterc = afterc; |
fc053494 | 431 | iu->after = copy_argv(after, afterc); |
5eaef520 | 432 | sq_save_data(incremental_sq, iu); |
a313cad2 | 433 | } |
32cfe906 | 434 | |
03c05291 | 435 | void incremental_clear_after(void) |
436 | { | |
5eaef520 | 437 | incremental_after(NO_TABLE, NULL, NULL); |
03c05291 | 438 | } |
439 | ||
32cfe906 | 440 | |
441 | /* Called when the current transaction is committed to start any queued | |
442 | * incremental updates. This caches the update table the first time it | |
443 | * is called. | |
444 | */ | |
445 | ||
446 | struct inc_cache { | |
5eaef520 | 447 | struct inc_cache *next; |
448 | char *table, *service; | |
32cfe906 | 449 | }; |
450 | ||
451 | ||
03c05291 | 452 | void incremental_update(void) |
32cfe906 | 453 | { |
5eaef520 | 454 | static int inited = 0; |
455 | static struct inc_cache *cache; | |
456 | struct inc_cache *c; | |
457 | EXEC SQL BEGIN DECLARE SECTION; | |
e688520a | 458 | char tab[INCREMENTAL_TABLE_NAME_SIZE], serv[INCREMENTAL_SERVICE_SIZE]; |
5eaef520 | 459 | EXEC SQL END DECLARE SECTION; |
772c26b3 | 460 | struct iupdate *iu, *iu_save; |
5eaef520 | 461 | |
462 | if (!inited) | |
463 | { | |
464 | inited++; | |
465 | ||
466 | EXEC SQL DECLARE inc CURSOR FOR SELECT table_name, service | |
467 | FROM incremental; | |
468 | EXEC SQL OPEN inc; | |
469 | while (1) | |
470 | { | |
471 | EXEC SQL FETCH inc INTO :tab, :serv; | |
472 | if (sqlca.sqlcode) | |
473 | break; | |
e688520a | 474 | c = xmalloc(sizeof(struct inc_cache)); |
5eaef520 | 475 | c->next = cache; |
e688520a | 476 | c->table = xstrdup(strtrim(tab)); |
477 | c->service = xstrdup(strtrim(serv)); | |
5eaef520 | 478 | cache = c; |
32cfe906 | 479 | } |
5eaef520 | 480 | EXEC SQL CLOSE inc; |
481 | EXEC SQL COMMIT WORK; | |
32cfe906 | 482 | } |
483 | ||
5eaef520 | 484 | while (sq_remove_data(incremental_sq, &iu)) |
485 | { | |
486 | for (c = cache; c; c = c->next) | |
487 | { | |
488 | if (!strcmp(c->table, iu->table)) | |
489 | { | |
490 | iu->service = c->service; | |
772c26b3 | 491 | iu_save = xmalloc(sizeof(struct iupdate)); |
492 | iu_save->service = iu->service; | |
493 | iu_save->table = iu->table; | |
494 | iu_save->beforec = iu->beforec; | |
495 | iu_save->afterc = iu->afterc; | |
496 | iu_save->before = copy_argv(iu->before, iu->beforec); | |
497 | iu_save->after = copy_argv(iu->after, iu->afterc); | |
498 | sq_save_data(incremental_exec, iu_save); | |
32cfe906 | 499 | } |
500 | } | |
e688520a | 501 | if (!c) |
502 | { | |
503 | free_argv(iu->before, iu->beforec); | |
504 | free_argv(iu->after, iu->afterc); | |
505 | free(iu); | |
506 | } | |
32cfe906 | 507 | } |
5eaef520 | 508 | if (inc_running == 0) |
509 | next_incremental(); | |
32cfe906 | 510 | } |
511 | ||
f18a32ee | 512 | /* Pro*C 2.2.4 can't cope with the sigset_t below, at least in Solaris 2.6. |
513 | We add DEFINE=_PROC_ to the proc invocation and then #ifndef that around | |
514 | this function so proc will pass it through without reading it. */ | |
32cfe906 | 515 | |
f18a32ee | 516 | #ifndef _PROC_ |
03c05291 | 517 | void next_incremental(void) |
32cfe906 | 518 | { |
5eaef520 | 519 | struct iupdate *iu; |
e688520a | 520 | char *argv[MAXARGC * 2 + 4], cafter[3], cbefore[3], prog[MAXPATHLEN]; |
5eaef520 | 521 | int i; |
522 | sigset_t sigs; | |
523 | ||
524 | if (!incremental_exec) | |
525 | incremental_init(); | |
526 | ||
527 | if (sq_empty(incremental_exec) || | |
528 | (inc_running && now - inc_started < INC_TIMEOUT)) | |
529 | return; | |
530 | ||
531 | if (inc_running) | |
532 | com_err(whoami, 0, "incremental timeout on pid %d", inc_pid); | |
533 | ||
534 | sq_remove_data(incremental_exec, &iu); | |
535 | argv[1] = iu->table; | |
536 | sprintf(cbefore, "%d", iu->beforec); | |
537 | argv[2] = cbefore; | |
538 | sprintf(cafter, "%d", iu->afterc); | |
539 | argv[3] = cafter; | |
540 | for (i = 0; i < iu->beforec; i++) | |
541 | argv[4 + i] = iu->before[i]; | |
542 | for (i = 0; i < iu->afterc; i++) | |
543 | argv[4 + iu->beforec + i] = iu->after[i]; | |
544 | ||
545 | sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service); | |
546 | argv[0] = prog; | |
547 | argv[4 + iu->beforec + iu->afterc] = 0; | |
548 | ||
549 | sigemptyset(&sigs); | |
550 | sigaddset(&sigs, SIGCHLD); | |
551 | sigprocmask(SIG_BLOCK, &sigs, NULL); | |
552 | inc_pid = vfork(); | |
553 | switch (inc_pid) | |
554 | { | |
32cfe906 | 555 | case 0: |
5eaef520 | 556 | execv(prog, argv); |
557 | _exit(1); | |
32cfe906 | 558 | case -1: |
5eaef520 | 559 | com_err(whoami, 0, "Failed to start incremental update"); |
560 | break; | |
32cfe906 | 561 | default: |
5eaef520 | 562 | inc_running = 1; |
563 | inc_started = now; | |
32cfe906 | 564 | } |
5eaef520 | 565 | sigprocmask(SIG_UNBLOCK, &sigs, NULL); |
32cfe906 | 566 | |
5eaef520 | 567 | free_argv(iu->before, iu->beforec); |
568 | free_argv(iu->after, iu->afterc); | |
569 | free(iu); | |
32cfe906 | 570 | } |
f18a32ee | 571 | #endif |
32cfe906 | 572 | |
573 | /* Called when the current transaction is aborted to throw away any queued | |
574 | * incremental updates | |
575 | */ | |
576 | ||
03c05291 | 577 | void incremental_flush(void) |
32cfe906 | 578 | { |
5eaef520 | 579 | struct iupdate *iu; |
32cfe906 | 580 | |
5eaef520 | 581 | while (sq_get_data(incremental_sq, &iu)) |
582 | { | |
583 | free_argv(iu->before, iu->beforec); | |
584 | free_argv(iu->after, iu->afterc); | |
585 | free(iu); | |
32cfe906 | 586 | } |
5eaef520 | 587 | sq_destroy(incremental_sq); |
588 | incremental_sq = sq_create(); | |
32cfe906 | 589 | } |
590 | ||
591 | ||
fc053494 | 592 | char **copy_argv(char **argv, int argc) |
593 | { | |
594 | char **ret = xmalloc(sizeof(char *) * argc); | |
595 | while (--argc >= 0) | |
596 | ret[argc] = xstrdup(strtrim(argv[argc])); | |
597 | return ret; | |
598 | } | |
599 | ||
5eaef520 | 600 | void free_argv(char **argv, int argc) |
32cfe906 | 601 | { |
5eaef520 | 602 | while (--argc >= 0) |
603 | free(argv[argc]); | |
604 | free(argv); | |
32cfe906 | 605 | } |
03c05291 | 606 | |
607 | int table_num(char *name) | |
608 | { | |
609 | int i; | |
610 | ||
5eaef520 | 611 | for (i = num_tables - 1; i; i--) |
612 | { | |
613 | if (!strcmp(table_name[i], name)) | |
614 | break; | |
615 | } | |
03c05291 | 616 | |
617 | return i; /* 0 = "none" if no match */ | |
618 | } |