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32cfe906 | 1 | /* |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
5 | * | |
6 | * Copyright (C) 1989 by the Massachusetts Institute of Technology | |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | * | |
10 | */ | |
11 | ||
12 | #ifndef lint | |
13 | static char *rcsid_increment_dc = "$Header$"; | |
14 | #endif lint | |
15 | ||
af0171d9 | 16 | #include <fcntl.h> |
32cfe906 | 17 | #include <mit-copyright.h> |
18 | #include <moira.h> | |
19 | #include "query.h" | |
20 | #include "mr_server.h" | |
45bf7573 | 21 | EXEC SQL INCLUDE sqlca; |
32cfe906 | 22 | |
23 | extern char *whoami; | |
24 | char *malloc(); | |
25 | ||
26 | int inc_pid = 0; | |
27 | int inc_running = 0; | |
28 | time_t inc_started; | |
29 | ||
30 | #define MAXARGC 15 | |
31 | ||
45bf7573 | 32 | EXEC SQL WHENEVER SQLERROR CALL ingerr; |
33 | ||
32cfe906 | 34 | /* structures to save before args */ |
35 | static char beforeb[MAXARGC][ARGLEN]; | |
36 | static char *before[MAXARGC]; | |
37 | EXEC SQL BEGIN DECLARE SECTION; | |
38 | char *barg0, *barg1, *barg2, *barg3, *barg4; | |
39 | char *barg5, *barg6, *barg7, *barg8, *barg9; | |
40 | char *barg10, *barg11, *barg12, *barg13, *barg14; | |
41 | EXEC SQL END DECLARE SECTION; | |
42 | static int beforec; | |
43 | static char *beforetable; | |
44 | ||
45 | /* structures to save after args */ | |
46 | static char afterb[MAXARGC][ARGLEN]; | |
47 | static char *after[MAXARGC]; | |
48 | EXEC SQL BEGIN DECLARE SECTION; | |
49 | char *aarg0, *aarg1, *aarg2, *aarg3, *aarg4; | |
50 | char *aarg5, *aarg6, *aarg7, *aarg8, *aarg9; | |
51 | char *aarg10, *aarg11, *aarg12, *aarg13, *aarg14; | |
52 | EXEC SQL END DECLARE SECTION; | |
53 | static int afterc; | |
54 | ||
55 | /* structures to save entire sets of incremental changes */ | |
56 | struct save_queue *incremental_sq = NULL; | |
57 | struct save_queue *incremental_exec = NULL; | |
58 | struct iupdate { | |
59 | char *table; | |
60 | int beforec; | |
61 | char **before; | |
62 | int afterc; | |
63 | char **after; | |
64 | char *service; | |
65 | }; | |
66 | ||
67 | ||
68 | incremental_init() | |
69 | { | |
70 | int i; | |
71 | ||
72 | for (i = 0; i < MAXARGC; i++) { | |
73 | before[i] = &beforeb[i][0]; | |
74 | after[i] = &afterb[i][0]; | |
75 | } | |
76 | barg0 = before[0]; | |
77 | barg1 = before[1]; | |
78 | barg2 = before[2]; | |
79 | barg3 = before[3]; | |
80 | barg4 = before[4]; | |
81 | barg5 = before[5]; | |
82 | barg6 = before[6]; | |
83 | barg7 = before[7]; | |
84 | barg8 = before[8]; | |
85 | barg9 = before[9]; | |
86 | barg10 = before[10]; | |
87 | barg11 = before[11]; | |
88 | barg12 = before[12]; | |
89 | barg13 = before[13]; | |
90 | barg14 = before[14]; | |
91 | aarg0 = after[0]; | |
92 | aarg1 = after[1]; | |
93 | aarg2 = after[2]; | |
94 | aarg3 = after[3]; | |
95 | aarg4 = after[4]; | |
96 | aarg5 = after[5]; | |
97 | aarg6 = after[6]; | |
98 | aarg7 = after[7]; | |
99 | aarg8 = after[8]; | |
100 | aarg9 = after[9]; | |
101 | aarg10 = after[10]; | |
102 | aarg11 = after[11]; | |
103 | aarg12 = after[12]; | |
104 | aarg13 = after[13]; | |
105 | aarg14 = after[14]; | |
106 | if (incremental_sq == NULL) | |
107 | incremental_sq = sq_create(); | |
108 | if (incremental_exec == NULL) | |
109 | incremental_exec = sq_create(); | |
110 | } | |
111 | ||
112 | ||
113 | incremental_before(table, qual, argv) | |
114 | char *table; | |
45bf7573 | 115 | EXEC SQL BEGIN DECLARE SECTION; |
32cfe906 | 116 | char *qual; |
45bf7573 | 117 | EXEC SQL END DECLARE SECTION; |
32cfe906 | 118 | char **argv; |
119 | { | |
120 | EXEC SQL BEGIN DECLARE SECTION; | |
121 | int id; | |
122 | EXEC SQL END DECLARE SECTION; | |
123 | ||
124 | char buffer[512], *name; | |
125 | ||
126 | beforetable = table; | |
127 | ||
128 | if (!strcmp(table, "users")) { | |
0c345c78 | 129 | EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first, u.middle, |
130 | CHAR(u.status), u.clearid, u.type | |
a313cad2 | 131 | INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6, |
132 | :barg7, :barg8 | |
0c345c78 | 133 | FROM users u WHERE :qual; |
32cfe906 | 134 | beforec = 9; |
135 | } else if (!strcmp(table, "machine")) { | |
de0954da | 136 | EXEC SQL SELECT m.name, m.type INTO :barg0, :barg1 FROM machine m |
a313cad2 | 137 | WHERE :qual; |
32cfe906 | 138 | beforec = 2; |
139 | } else if (!strcmp(table, "cluster")) { | |
0c345c78 | 140 | EXEC SQL SELECT c.name, c.description, c.location |
45bf7573 | 141 | INTO :barg0, :barg1, :barg2 |
0c345c78 | 142 | FROM cluster c WHERE :qual; |
32cfe906 | 143 | beforec = 3; |
144 | } else if (!strcmp(table, "mcmap")) { | |
145 | strcpy(barg0, argv[0]); | |
146 | strcpy(barg1, argv[1]); | |
147 | beforec = 2; | |
148 | } else if (!strcmp(table, "svc")) { | |
149 | strcpy(barg0, argv[0]); | |
150 | strcpy(barg1, argv[1]); | |
151 | strcpy(barg2, argv[2]); | |
152 | beforec = 3; | |
153 | } else if (!strcmp(table, "filesys")) { | |
0c345c78 | 154 | EXEC SQL SELECT fs.label, fs.type, CHAR(fs.mach_id), fs.name, |
155 | fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners), | |
156 | CHAR(fs.createflg), fs.lockertype | |
a313cad2 | 157 | INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6, |
158 | :barg7, :barg8, :barg9, :barg10 | |
0c345c78 | 159 | FROM filesys fs WHERE :qual; |
bc5e9d66 | 160 | name = malloc(0); |
161 | id = atoi(barg2); | |
162 | id_to_name(id, "MACHINE", &name); | |
163 | strcpy(barg2, name); | |
164 | id = atoi(barg7); | |
165 | id_to_name(id, "USER", &name); | |
166 | strcpy(barg7, name); | |
167 | id = atoi(barg8); | |
168 | id_to_name(id, "LIST", &name); | |
169 | strcpy(barg8, name); | |
170 | free(name); | |
32cfe906 | 171 | beforec = 11; |
172 | } else if (!strcmp(table, "quota")) { | |
173 | strcpy(barg0, "?"); | |
174 | strcpy(barg1, argv[1]); | |
175 | strcpy(barg2, "?"); | |
0c345c78 | 176 | sprintf(buffer, "%s AND fs.filsys_id = q.filsys_id", qual); |
32cfe906 | 177 | qual = buffer; |
0c345c78 | 178 | EXEC SQL SELECT CHAR(q.quota), fs.name INTO :barg3, :barg4 |
179 | FROM quota q, filesys fs WHERE :qual; | |
32cfe906 | 180 | beforec = 5; |
181 | } else if (!strcmp(table, "list")) { | |
0c345c78 | 182 | EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg), |
183 | CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid), | |
184 | l.acl_type, CHAR(l.acl_id), l.description | |
a313cad2 | 185 | INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6, |
0c345c78 | 186 | :barg7, :barg8, :barg9 |
187 | FROM list l WHERE :qual; | |
32cfe906 | 188 | beforec = 10; |
189 | } else if (!strcmp(table, "members")) { | |
190 | id = (int) argv[0]; | |
45bf7573 | 191 | EXEC SQL SELECT CHAR(grouplist) INTO :barg3 FROM list |
a313cad2 | 192 | WHERE list_id = :id; |
32cfe906 | 193 | name = malloc(0); |
194 | id_to_name(id, "LIST", &name); | |
195 | strcpy(barg0, name); | |
196 | strcpy(barg1, argv[1]); | |
197 | id = (int) argv[2]; | |
198 | if (!strcmp(barg1, "USER")) { | |
199 | id_to_name(id, barg1, &name); | |
200 | } else if (!strcmp(barg1, "LIST")) { | |
201 | id_to_name(id, barg1, &name); | |
202 | } else if (!strcmp(barg1, "STRING")) { | |
203 | id_to_name(id, barg1, &name); | |
204 | } else if (!strcmp(barg1, "KERBEROS")) { | |
205 | id_to_name(id, "STRING", &name); | |
206 | } | |
207 | strcpy(barg2, name); | |
208 | free(name); | |
209 | beforec = 4; | |
210 | } /* else | |
211 | com_err(whoami, 0, "unknown table in incremental_before"); */ | |
a313cad2 | 212 | } |
32cfe906 | 213 | |
214 | ||
215 | incremental_clear_before() | |
216 | { | |
217 | beforec = 0; | |
218 | } | |
219 | ||
220 | incremental_clear_after() | |
221 | { | |
222 | incremental_after("clear", 0); | |
223 | } | |
224 | ||
225 | ||
226 | ||
a313cad2 | 227 | incremental_after(table, qual, argv) |
a313cad2 | 228 | char *table; |
45bf7573 | 229 | EXEC SQL BEGIN DECLARE SECTION; |
a313cad2 | 230 | char *qual; |
231 | EXEC SQL END DECLARE SECTION; | |
32cfe906 | 232 | char **argv; |
a313cad2 | 233 | { |
32cfe906 | 234 | char buffer[2048], *name; |
a313cad2 | 235 | EXEC SQL BEGIN DECLARE SECTION; |
1d4c56d5 | 236 | char *type; |
a313cad2 | 237 | int id, i; |
238 | EXEC SQL END DECLARE SECTION; | |
32cfe906 | 239 | struct iupdate *iu; |
240 | char **copy_argv(); | |
241 | ||
242 | if (!strcmp(table, "users")) { | |
0c345c78 | 243 | EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first, |
244 | u.middle, CHAR(u.status), u.clearid, u.type | |
a313cad2 | 245 | INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, |
246 | :aarg6, :aarg7, :aarg8 | |
0c345c78 | 247 | FROM users u WHERE :qual; |
32cfe906 | 248 | afterc = 9; |
249 | } else if (!strcmp(table, "machine")) { | |
0c345c78 | 250 | EXEC SQL SELECT m.name, m.type INTO :aarg0, :aarg1 |
251 | FROM machine m WHERE :qual; | |
32cfe906 | 252 | afterc = 2; |
253 | } else if (!strcmp(table, "cluster")) { | |
0c345c78 | 254 | EXEC SQL SELECT c.name, c.description, c.location |
45bf7573 | 255 | INTO :aarg0, :aarg1, :aarg2 |
0c345c78 | 256 | FROM cluster c WHERE :qual; |
32cfe906 | 257 | afterc = 3; |
258 | } else if (!strcmp(table, "mcmap")) { | |
259 | strcpy(aarg0, argv[0]); | |
260 | strcpy(aarg1, argv[1]); | |
261 | afterc = 2; | |
262 | } else if (!strcmp(table, "svc")) { | |
263 | strcpy(aarg0, argv[0]); | |
264 | strcpy(aarg1, argv[1]); | |
265 | strcpy(aarg2, argv[2]); | |
266 | afterc = 3; | |
267 | } else if (!strcmp(table, "filesys")) { | |
0c345c78 | 268 | EXEC SQL SELECT CHAR(fs.label), fs.type, CHAR(fs.mach_id), fs.name, |
269 | fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners), | |
270 | CHAR(fs.createflg), fs.lockertype | |
a313cad2 | 271 | INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6, |
272 | :aarg7, :aarg8, :aarg9, :aarg10 | |
273 | FROM filesys fs WHERE :qual; | |
bc5e9d66 | 274 | name = malloc(0); |
275 | id = atoi(aarg2); | |
276 | id_to_name(id, "MACHINE", &name); | |
277 | strcpy(aarg2, name); | |
278 | id = atoi(aarg7); | |
279 | id_to_name(id, "USER", &name); | |
280 | strcpy(aarg7, name); | |
281 | id = atoi(aarg8); | |
282 | id_to_name(id, "LIST", &name); | |
283 | strcpy(aarg8, name); | |
284 | free(name); | |
32cfe906 | 285 | afterc = 11; |
286 | } else if (!strcmp(table, "quota")) { | |
287 | strcpy(aarg0, "?"); | |
288 | strcpy(aarg1, argv[1]); | |
289 | strcpy(aarg2, "?"); | |
1d4c56d5 | 290 | if (!strcmp(argv[1], "ANY")) |
291 | type = "NONE"; | |
292 | else | |
293 | type = argv[1]; | |
294 | sprintf(buffer, "%s and fs.filsys_id = q.filsys_id and q.type = '%s'", | |
295 | qual, type); | |
32cfe906 | 296 | qual = buffer; |
0c345c78 | 297 | EXEC SQL SELECT CHAR(q.quota), fs.name INTO :aarg3, :aarg4 |
298 | FROM quota q, filesys fs WHERE :qual; | |
32cfe906 | 299 | afterc = 5; |
300 | } else if (!strcmp(table, "list")) { | |
0c345c78 | 301 | EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg), |
302 | CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid), | |
303 | l.acl_type, CHAR(l.acl_id), l.description | |
a313cad2 | 304 | INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6, |
305 | :aarg7, :aarg8, :aarg9 | |
0c345c78 | 306 | FROM list l WHERE :qual; |
32cfe906 | 307 | afterc = 10; |
308 | } else if (!strcmp(table, "members")) { | |
309 | id = (int) argv[0]; | |
45bf7573 | 310 | EXEC SQL SELECT CHAR(grouplist) INTO :aarg3 FROM list |
a313cad2 | 311 | WHERE list_id = :id; |
32cfe906 | 312 | name = malloc(0); |
313 | id_to_name(id, "LIST", &name); | |
314 | strcpy(aarg0, name); | |
315 | strcpy(aarg1, argv[1]); | |
316 | id = (int) argv[2]; | |
317 | if (!strcmp(aarg1, "USER")) { | |
318 | id_to_name(id, aarg1, &name); | |
319 | } else if (!strcmp(aarg1, "LIST")) { | |
320 | id_to_name(id, aarg1, &name); | |
321 | } else if (!strcmp(aarg1, "STRING")) { | |
322 | id_to_name(id, aarg1, &name); | |
323 | } else if (!strcmp(aarg1, "KERBEROS")) { | |
324 | id_to_name(id, "STRING", &name); | |
325 | } | |
326 | strcpy(aarg2, name); | |
327 | free(name); | |
328 | afterc = 4; | |
329 | } else if (!strcmp(table, "clear")) { | |
330 | afterc = 0; | |
331 | table = beforetable; | |
332 | } /* else | |
333 | com_err(whoami, 0, "unknown table in incremental_after"); */ | |
334 | ||
335 | iu = (struct iupdate *) malloc(sizeof(struct iupdate)); | |
336 | iu->table = strsave(table); | |
337 | iu->beforec = beforec; | |
338 | iu->before = copy_argv(before, beforec); | |
339 | iu->afterc = afterc; | |
340 | iu->after = copy_argv(after, afterc); | |
341 | sq_save_data(incremental_sq, iu); | |
342 | ||
343 | #ifdef DEBUG | |
344 | sprintf(buffer, "INCREMENTAL(%s, [", table); | |
345 | for (i = 0; i < beforec; i++) { | |
346 | if (i == 0) | |
347 | strcat(buffer, strtrim(before[0])); | |
348 | else { | |
349 | strcat(buffer, ", "); | |
350 | strcat(buffer, strtrim(before[i])); | |
351 | } | |
352 | } | |
353 | strcat(buffer, "], ["); | |
354 | for (i = 0; i < afterc; i++) { | |
355 | if (i == 0) | |
356 | strcat(buffer, strtrim(after[0])); | |
357 | else { | |
358 | strcat(buffer, ", "); | |
359 | strcat(buffer, strtrim(after[i])); | |
360 | } | |
361 | } | |
362 | strcat(buffer, "])"); | |
363 | com_err(whoami, 0, buffer); | |
364 | #endif DEBUG | |
a313cad2 | 365 | } |
32cfe906 | 366 | |
367 | ||
368 | /* Called when the current transaction is committed to start any queued | |
369 | * incremental updates. This caches the update table the first time it | |
370 | * is called. | |
371 | */ | |
372 | ||
373 | struct inc_cache { | |
374 | struct inc_cache *next; | |
375 | char *table; | |
376 | char *service; | |
377 | }; | |
378 | ||
379 | ||
380 | incremental_update() | |
381 | { | |
382 | static int inited = 0; | |
383 | static struct inc_cache *cache; | |
384 | struct inc_cache *c; | |
385 | EXEC SQL BEGIN DECLARE SECTION; | |
386 | char tab[17], serv[17]; | |
387 | EXEC SQL END DECLARE SECTION; | |
388 | struct iupdate *iu; | |
389 | ||
390 | if (!inited) { | |
391 | inited++; | |
392 | ||
45bf7573 | 393 | EXEC SQL DECLARE inc CURSOR FOR SELECT tablename, service FROM incremental; |
32cfe906 | 394 | EXEC SQL OPEN inc; |
395 | while (1) { | |
396 | EXEC SQL FETCH inc INTO :tab, :serv; | |
397 | if (sqlca.sqlcode != 0) break; | |
398 | c = (struct inc_cache *)malloc(sizeof(struct inc_cache)); | |
399 | c->next = cache; | |
400 | c->table = strsave(strtrim(tab)); | |
401 | c->service = strsave(strtrim(serv)); | |
402 | cache = c; | |
403 | } | |
404 | EXEC SQL CLOSE inc; | |
de0954da | 405 | EXEC SQL COMMIT WORK; |
32cfe906 | 406 | } |
407 | ||
408 | while (sq_remove_data(incremental_sq, &iu)) { | |
409 | for (c = cache; c; c = c->next) { | |
410 | if (!strcmp(c->table, iu->table)) { | |
411 | iu->service = c->service; | |
412 | sq_save_data(incremental_exec, iu); | |
413 | } | |
414 | } | |
415 | } | |
416 | if (inc_running == 0) | |
417 | next_incremental(); | |
418 | } | |
419 | ||
420 | ||
421 | next_incremental() | |
422 | { | |
423 | struct iupdate *iu; | |
424 | char *argv[MAXARGC * 2 + 4], cafter[3], cbefore[3], prog[BUFSIZ]; | |
425 | int i; | |
426 | ||
427 | if (incremental_exec == NULL) | |
428 | incremental_init(); | |
429 | ||
430 | if (sq_empty(incremental_exec) || | |
431 | (inc_running && now - inc_started < INC_TIMEOUT)) | |
432 | return; | |
433 | ||
434 | if (inc_running) | |
435 | com_err(whoami, 0, "incremental timeout on pid %d", inc_pid); | |
436 | ||
437 | sq_remove_data(incremental_exec, &iu); | |
438 | argv[1] = iu->table; | |
439 | sprintf(cbefore, "%d", iu->beforec); | |
440 | argv[2] = cbefore; | |
441 | sprintf(cafter, "%d", iu->afterc); | |
442 | argv[3] = cafter; | |
443 | for (i = 0; i < iu->beforec; i++) | |
444 | argv[4 + i] = iu->before[i]; | |
445 | for (i = 0; i < iu->afterc; i++) | |
446 | argv[4 + iu->beforec + i] = iu->after[i]; | |
447 | ||
448 | sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service); | |
449 | #ifdef DEBUG | |
450 | com_err(whoami, 0, "forking %s", prog); | |
451 | #endif | |
452 | argv[0] = prog; | |
453 | argv[4 + iu->beforec + iu->afterc] = 0; | |
454 | inc_pid = vfork(); | |
455 | switch (inc_pid) { | |
456 | case 0: | |
457 | execv(prog, argv); | |
af0171d9 | 458 | _exit(1); |
32cfe906 | 459 | case -1: |
460 | com_err(whoami, 0, "Failed to start incremental update"); | |
461 | break; | |
462 | default: | |
463 | inc_running = 1; | |
464 | inc_started = now; | |
465 | } | |
466 | ||
467 | free_argv(iu->before, iu->beforec); | |
468 | free_argv(iu->after, iu->afterc); | |
469 | free(iu->table); | |
470 | free(iu); | |
471 | ||
472 | } | |
473 | ||
474 | ||
475 | /* Called when the current transaction is aborted to throw away any queued | |
476 | * incremental updates | |
477 | */ | |
478 | ||
479 | incremental_flush() | |
480 | { | |
481 | struct iupdate *iu; | |
482 | ||
483 | while (sq_get_data(incremental_sq, &iu)) { | |
484 | free_argv(iu->before, iu->beforec); | |
485 | free_argv(iu->after, iu->afterc); | |
486 | free(iu->table); | |
487 | free(iu); | |
488 | } | |
489 | sq_destroy(incremental_sq); | |
490 | incremental_sq = sq_create(); | |
491 | } | |
492 | ||
493 | ||
494 | char **copy_argv(argv, argc) | |
495 | char **argv; | |
496 | int argc; | |
497 | { | |
498 | char **ret = (char **)malloc(sizeof(char *) * argc); | |
499 | while (--argc >= 0) | |
500 | ret[argc] = strsave(strtrim(argv[argc])); | |
501 | return(ret); | |
502 | } | |
503 | ||
504 | free_argv(argv, argc) | |
505 | char **argv; | |
506 | int argc; | |
507 | { | |
508 | while (--argc >= 0) | |
509 | free(argv[argc]); | |
510 | free(argv); | |
511 | } |