1 | /* testgdbm.c - Driver program to test the database routines and to
|
---|
2 | help debug gdbm. Uses inside information to show "system" information */
|
---|
3 |
|
---|
4 | /* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
|
---|
5 | Copyright (C) 1990, 1991, 1993 Free Software Foundation, Inc.
|
---|
6 |
|
---|
7 | GDBM is free software; you can redistribute it and/or modify
|
---|
8 | it under the terms of the GNU General Public License as published by
|
---|
9 | the Free Software Foundation; either version 2, or (at your option)
|
---|
10 | any later version.
|
---|
11 |
|
---|
12 | GDBM is distributed in the hope that it will be useful,
|
---|
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
15 | GNU General Public License for more details.
|
---|
16 |
|
---|
17 | You should have received a copy of the GNU General Public License
|
---|
18 | along with GDBM; see the file COPYING. If not, write to
|
---|
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
20 |
|
---|
21 | You may contact the author by:
|
---|
22 | e-mail: [email protected]
|
---|
23 | us-mail: Philip A. Nelson
|
---|
24 | Computer Science Department
|
---|
25 | Western Washington University
|
---|
26 | Bellingham, WA 98226
|
---|
27 |
|
---|
28 | *************************************************************************/
|
---|
29 |
|
---|
30 |
|
---|
31 | /* include system configuration before all else. */
|
---|
32 | #include "autoconf.h"
|
---|
33 |
|
---|
34 | #include "gdbmdefs.h"
|
---|
35 | #include "gdbmerrno.h"
|
---|
36 | #include "extern.h"
|
---|
37 |
|
---|
38 | #include "getopt.h"
|
---|
39 |
|
---|
40 | extern const char * gdbm_version;
|
---|
41 |
|
---|
42 | extern const char *gdbm_strerror __P((gdbm_error));
|
---|
43 |
|
---|
44 | gdbm_file_info *gdbm_file;
|
---|
45 |
|
---|
46 | /* Debug procedure to print the contents of the current hash bucket. */
|
---|
47 | void
|
---|
48 | print_bucket (bucket, mesg)
|
---|
49 | hash_bucket *bucket;
|
---|
50 | char *mesg;
|
---|
51 | {
|
---|
52 | int index;
|
---|
53 |
|
---|
54 | printf ("******* %s **********\n\nbits = %d\ncount= %d\nHash Table:\n",
|
---|
55 | mesg, bucket->bucket_bits, bucket->count);
|
---|
56 | printf (" # hash value key size data size data adr home\n");
|
---|
57 | for (index = 0; index < gdbm_file->header->bucket_elems; index++)
|
---|
58 | printf (" %4d %12x %11d %11d %11d %5d\n", index,
|
---|
59 | bucket->h_table[index].hash_value,
|
---|
60 | bucket->h_table[index].key_size,
|
---|
61 | bucket->h_table[index].data_size,
|
---|
62 | bucket->h_table[index].data_pointer,
|
---|
63 | bucket->h_table[index].hash_value % gdbm_file->header->bucket_elems);
|
---|
64 |
|
---|
65 | printf ("\nAvail count = %1d\n", bucket->av_count);
|
---|
66 | printf ("Avail adr size\n");
|
---|
67 | for (index = 0; index < bucket->av_count; index++)
|
---|
68 | printf ("%9d%9d\n", bucket->bucket_avail[index].av_adr,
|
---|
69 | bucket->bucket_avail[index].av_size);
|
---|
70 | }
|
---|
71 |
|
---|
72 |
|
---|
73 | void
|
---|
74 | _gdbm_print_avail_list (dbf)
|
---|
75 | gdbm_file_info *dbf;
|
---|
76 | {
|
---|
77 | int temp;
|
---|
78 | int size;
|
---|
79 | avail_block *av_stk;
|
---|
80 |
|
---|
81 | /* Print the the header avail block. */
|
---|
82 | printf ("\nheader block\nsize = %d\ncount = %d\n",
|
---|
83 | dbf->header->avail.size, dbf->header->avail.count);
|
---|
84 | for (temp = 0; temp < dbf->header->avail.count; temp++)
|
---|
85 | {
|
---|
86 | printf (" %15d %10d \n", dbf->header->avail.av_table[temp].av_size,
|
---|
87 | dbf->header->avail.av_table[temp].av_adr);
|
---|
88 | }
|
---|
89 |
|
---|
90 | /* Initialize the variables for a pass throught the avail stack. */
|
---|
91 | temp = dbf->header->avail.next_block;
|
---|
92 | size = ( ( (dbf->header->avail.size * sizeof (avail_elem)) >> 1)
|
---|
93 | + sizeof (avail_block));
|
---|
94 | av_stk = (avail_block *) malloc (size);
|
---|
95 | if (av_stk == NULL)
|
---|
96 | {
|
---|
97 | printf("Out of memory\n");
|
---|
98 | exit (2);
|
---|
99 | }
|
---|
100 |
|
---|
101 | /* Print the stack. */
|
---|
102 | while (FALSE)
|
---|
103 | {
|
---|
104 | lseek (dbf->desc, temp, L_SET);
|
---|
105 | read (dbf->desc, av_stk, size);
|
---|
106 |
|
---|
107 | /* Print the block! */
|
---|
108 | printf ("\nblock = %d\nsize = %d\ncount = %d\n", temp,
|
---|
109 | av_stk->size, av_stk->count);
|
---|
110 | for (temp = 0; temp < av_stk->count; temp++)
|
---|
111 | {
|
---|
112 | printf (" %15d %10d \n", av_stk->av_table[temp].av_size,
|
---|
113 | av_stk->av_table[temp].av_adr);
|
---|
114 | }
|
---|
115 | temp = av_stk->next_block;
|
---|
116 | }
|
---|
117 | }
|
---|
118 |
|
---|
119 | void
|
---|
120 | _gdbm_print_bucket_cache (dbf)
|
---|
121 | gdbm_file_info *dbf;
|
---|
122 | {
|
---|
123 | register int index;
|
---|
124 | char changed;
|
---|
125 |
|
---|
126 | if (dbf->bucket_cache != NULL) {
|
---|
127 | printf(
|
---|
128 | "Bucket Cache (size %d):\n Index: Address Changed Data_Hash \n",
|
---|
129 | dbf->cache_size);
|
---|
130 | for (index=0; index < dbf->cache_size; index++) {
|
---|
131 | changed = dbf->bucket_cache[index].ca_changed;
|
---|
132 | printf (" %5d: %7d %7s %x\n",
|
---|
133 | index,
|
---|
134 | dbf->bucket_cache[index].ca_adr,
|
---|
135 | (changed ? "True" : "False"),
|
---|
136 | dbf->bucket_cache[index].ca_data.hash_val);
|
---|
137 | }
|
---|
138 | } else
|
---|
139 | printf("Bucket cache has not been initialized.\n");
|
---|
140 | }
|
---|
141 |
|
---|
142 | void
|
---|
143 | usage (s)
|
---|
144 | char *s;
|
---|
145 | {
|
---|
146 | printf(
|
---|
147 | "Usage: %s [-r or -ns] [-b block-size] [-c cache-size] [-g gdbm-file]\n",
|
---|
148 | s);
|
---|
149 | exit (2);
|
---|
150 | }
|
---|
151 |
|
---|
152 |
|
---|
153 | /* The test program allows one to call all the routines plus the hash function.
|
---|
154 | The commands are single letter commands. The user is prompted for all other
|
---|
155 | information. See the help command (?) for a list of all commands. */
|
---|
156 |
|
---|
157 | int
|
---|
158 | main (argc, argv)
|
---|
159 | int argc;
|
---|
160 | char *argv[];
|
---|
161 |
|
---|
162 | {
|
---|
163 |
|
---|
164 | char cmd_ch;
|
---|
165 |
|
---|
166 | datum key_data;
|
---|
167 | datum data_data;
|
---|
168 | datum return_data;
|
---|
169 |
|
---|
170 | char key_line[500];
|
---|
171 | char data_line[1000];
|
---|
172 |
|
---|
173 | char done = FALSE;
|
---|
174 | int opt;
|
---|
175 | char reader = FALSE;
|
---|
176 | char newdb = FALSE;
|
---|
177 | int fast = 0;
|
---|
178 |
|
---|
179 | int cache_size = DEFAULT_CACHESIZE;
|
---|
180 | int block_size = 0;
|
---|
181 |
|
---|
182 | char *file_name = NULL;
|
---|
183 |
|
---|
184 |
|
---|
185 | /* Argument checking. */
|
---|
186 | opterr = 0;
|
---|
187 | while ((opt = getopt (argc, argv, "srnc:b:g:")) != -1)
|
---|
188 | switch (opt) {
|
---|
189 | case 's': fast = GDBM_SYNC;
|
---|
190 | if (reader) usage (argv[0]);
|
---|
191 | break;
|
---|
192 | case 'r': reader = TRUE;
|
---|
193 | if (newdb) usage (argv[0]);
|
---|
194 | break;
|
---|
195 | case 'n': newdb = TRUE;
|
---|
196 | if (reader) usage (argv[0]);
|
---|
197 | break;
|
---|
198 | case 'c': cache_size = atoi(optarg);
|
---|
199 | break;
|
---|
200 | case 'b': block_size = atoi(optarg);
|
---|
201 | break;
|
---|
202 | case 'g': file_name = optarg;
|
---|
203 | break;
|
---|
204 | default: usage(argv[0]);
|
---|
205 | }
|
---|
206 |
|
---|
207 | if(file_name == NULL)
|
---|
208 | file_name = "junk.gdbm";
|
---|
209 |
|
---|
210 | /* Initialize variables. */
|
---|
211 | key_data.dptr = NULL;
|
---|
212 | data_data.dptr = data_line;
|
---|
213 |
|
---|
214 | if (reader)
|
---|
215 | {
|
---|
216 | gdbm_file = gdbm_open (file_name, block_size, GDBM_READER, 00664, NULL);
|
---|
217 | }
|
---|
218 | else if (newdb)
|
---|
219 | {
|
---|
220 | gdbm_file =
|
---|
221 | gdbm_open (file_name, block_size, GDBM_NEWDB | fast, 00664, NULL);
|
---|
222 | }
|
---|
223 | else
|
---|
224 | {
|
---|
225 | gdbm_file =
|
---|
226 | gdbm_open (file_name, block_size, GDBM_WRCREAT | fast, 00664, NULL);
|
---|
227 | }
|
---|
228 | if (gdbm_file == NULL)
|
---|
229 | {
|
---|
230 | printf("gdbm_open failed, %s\n", gdbm_strerror(gdbm_errno));
|
---|
231 | exit (2);
|
---|
232 | }
|
---|
233 |
|
---|
234 | if (gdbm_setopt(gdbm_file, GDBM_CACHESIZE, &cache_size, sizeof(int)) == -1)
|
---|
235 | {
|
---|
236 | printf("gdbm_setopt failed, %s\n", gdbm_strerror(gdbm_errno));
|
---|
237 | exit(2);
|
---|
238 | }
|
---|
239 |
|
---|
240 | /* Welcome message. */
|
---|
241 | printf ("\nWelcome to the gdbm test program. Type ? for help.\n\n");
|
---|
242 |
|
---|
243 | while (!done)
|
---|
244 | {
|
---|
245 | printf ("com -> ");
|
---|
246 | cmd_ch = getchar ();
|
---|
247 | if (cmd_ch != '\n')
|
---|
248 | {
|
---|
249 | char temp;
|
---|
250 | do
|
---|
251 | temp = getchar ();
|
---|
252 | while (temp != '\n' && temp != EOF);
|
---|
253 | }
|
---|
254 | if (cmd_ch == EOF) cmd_ch = 'q';
|
---|
255 | switch (cmd_ch)
|
---|
256 | {
|
---|
257 |
|
---|
258 | /* Standard cases found in all test{dbm,ndbm,gdbm} programs. */
|
---|
259 | case '\n':
|
---|
260 | printf ("\n");
|
---|
261 | break;
|
---|
262 |
|
---|
263 | case 'c':
|
---|
264 | {
|
---|
265 | int temp;
|
---|
266 | temp = 0;
|
---|
267 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
268 | return_data = gdbm_firstkey (gdbm_file);
|
---|
269 | while (return_data.dptr != NULL)
|
---|
270 | {
|
---|
271 | temp++;
|
---|
272 | key_data = return_data;
|
---|
273 | return_data = gdbm_nextkey (gdbm_file, key_data);
|
---|
274 | free (key_data.dptr);
|
---|
275 | }
|
---|
276 | printf ("There are %d items in the database.\n\n", temp);
|
---|
277 | key_data.dptr = NULL;
|
---|
278 | }
|
---|
279 | break;
|
---|
280 |
|
---|
281 | case 'd':
|
---|
282 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
283 | printf ("key -> ");
|
---|
284 | gets (key_line);
|
---|
285 | key_data.dptr = key_line;
|
---|
286 | key_data.dsize = strlen (key_line)+1;
|
---|
287 | if (gdbm_delete (gdbm_file, key_data) != 0)
|
---|
288 | printf ("Item not found or deleted\n");
|
---|
289 | printf ("\n");
|
---|
290 | key_data.dptr = NULL;
|
---|
291 | break;
|
---|
292 |
|
---|
293 | case 'f':
|
---|
294 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
295 | printf ("key -> ");
|
---|
296 | gets (key_line);
|
---|
297 | key_data.dptr = key_line;
|
---|
298 | key_data.dsize = strlen (key_line)+1;
|
---|
299 | return_data = gdbm_fetch (gdbm_file, key_data);
|
---|
300 | if (return_data.dptr != NULL)
|
---|
301 | {
|
---|
302 | printf ("data is ->%s\n\n", return_data.dptr);
|
---|
303 | free (return_data.dptr);
|
---|
304 | }
|
---|
305 | else
|
---|
306 | printf ("No such item found.\n\n");
|
---|
307 | key_data.dptr = NULL;
|
---|
308 | break;
|
---|
309 |
|
---|
310 | case 'n':
|
---|
311 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
312 | printf ("key -> ");
|
---|
313 | gets (key_line);
|
---|
314 | key_data.dptr = key_line;
|
---|
315 | key_data.dsize = strlen (key_line)+1;
|
---|
316 | return_data = gdbm_nextkey (gdbm_file, key_data);
|
---|
317 | if (return_data.dptr != NULL)
|
---|
318 | {
|
---|
319 | key_data = return_data;
|
---|
320 | printf ("key is ->%s\n", key_data.dptr);
|
---|
321 | return_data = gdbm_fetch (gdbm_file, key_data);
|
---|
322 | printf ("data is ->%s\n\n", return_data.dptr);
|
---|
323 | free (return_data.dptr);
|
---|
324 | }
|
---|
325 | else
|
---|
326 | {
|
---|
327 | printf ("No such item found.\n\n");
|
---|
328 | key_data.dptr = NULL;
|
---|
329 | }
|
---|
330 | break;
|
---|
331 |
|
---|
332 | case 'q':
|
---|
333 | done = TRUE;
|
---|
334 | break;
|
---|
335 |
|
---|
336 | case 's':
|
---|
337 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
338 | printf ("key -> ");
|
---|
339 | gets (key_line);
|
---|
340 | key_data.dptr = key_line;
|
---|
341 | key_data.dsize = strlen (key_line)+1;
|
---|
342 | printf ("data -> ");
|
---|
343 | gets (data_line);
|
---|
344 | data_data.dsize = strlen (data_line)+1;
|
---|
345 | if (gdbm_store (gdbm_file, key_data, data_data, GDBM_REPLACE) != 0)
|
---|
346 | printf ("Item not inserted. \n");
|
---|
347 | printf ("\n");
|
---|
348 | key_data.dptr = NULL;
|
---|
349 | break;
|
---|
350 |
|
---|
351 | case '1':
|
---|
352 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
353 | key_data = gdbm_firstkey (gdbm_file);
|
---|
354 | if (key_data.dptr != NULL)
|
---|
355 | {
|
---|
356 | printf ("key is ->%s\n", key_data.dptr);
|
---|
357 | return_data = gdbm_fetch (gdbm_file, key_data);
|
---|
358 | printf ("data is ->%s\n\n", return_data.dptr);
|
---|
359 | free (return_data.dptr);
|
---|
360 | }
|
---|
361 | else
|
---|
362 | printf ("No such item found.\n\n");
|
---|
363 | break;
|
---|
364 |
|
---|
365 | case '2':
|
---|
366 | return_data = gdbm_nextkey (gdbm_file, key_data);
|
---|
367 | if (return_data.dptr != NULL)
|
---|
368 | {
|
---|
369 | free (key_data.dptr);
|
---|
370 | key_data = return_data;
|
---|
371 | printf ("key is ->%s\n", key_data.dptr);
|
---|
372 | return_data = gdbm_fetch (gdbm_file, key_data);
|
---|
373 | printf ("data is ->%s\n\n", return_data.dptr);
|
---|
374 | free (return_data.dptr);
|
---|
375 | }
|
---|
376 | else
|
---|
377 | printf ("No such item found.\n\n");
|
---|
378 | break;
|
---|
379 |
|
---|
380 |
|
---|
381 | /* Special cases for the testgdbm program. */
|
---|
382 | case 'r':
|
---|
383 | {
|
---|
384 | if (gdbm_reorganize (gdbm_file))
|
---|
385 | printf ("Reorganization failed. \n\n");
|
---|
386 | else
|
---|
387 | printf ("Reorganization succeeded. \n\n");
|
---|
388 | }
|
---|
389 | break;
|
---|
390 |
|
---|
391 | case 'A':
|
---|
392 | _gdbm_print_avail_list (gdbm_file);
|
---|
393 | printf ("\n");
|
---|
394 | break;
|
---|
395 |
|
---|
396 | case 'B':
|
---|
397 | {
|
---|
398 | int temp;
|
---|
399 | char number[80];
|
---|
400 |
|
---|
401 | printf ("bucket? ");
|
---|
402 | gets (number);
|
---|
403 | sscanf (number,"%d",&temp);
|
---|
404 |
|
---|
405 | if (temp >= gdbm_file->header->dir_size /4)
|
---|
406 | {
|
---|
407 | printf ("Not a bucket. \n\n");
|
---|
408 | break;
|
---|
409 | }
|
---|
410 | _gdbm_get_bucket (gdbm_file, temp);
|
---|
411 | }
|
---|
412 | printf ("Your bucket is now ");
|
---|
413 |
|
---|
414 | case 'C':
|
---|
415 | print_bucket (gdbm_file->bucket, "Current bucket");
|
---|
416 | printf ("\n current directory entry = %d.\n", gdbm_file->bucket_dir);
|
---|
417 | printf (" current bucket address = %d.\n\n",
|
---|
418 | gdbm_file->cache_entry->ca_adr);
|
---|
419 | break;
|
---|
420 |
|
---|
421 | case 'D':
|
---|
422 | printf ("Hash table directory.\n");
|
---|
423 | printf (" Size = %d. Bits = %d. \n\n",gdbm_file->header->dir_size,
|
---|
424 | gdbm_file->header->dir_bits);
|
---|
425 | {
|
---|
426 | int temp;
|
---|
427 |
|
---|
428 | for (temp = 0; temp < gdbm_file->header->dir_size / 4; temp++)
|
---|
429 | {
|
---|
430 | printf (" %10d: %12d\n", temp, gdbm_file->dir[temp]);
|
---|
431 | if ( (temp+1) % 20 == 0 && isatty (0))
|
---|
432 | {
|
---|
433 | printf ("*** CR to continue: ");
|
---|
434 | while (getchar () != '\n') /* Do nothing. */;
|
---|
435 | }
|
---|
436 | }
|
---|
437 | }
|
---|
438 | printf ("\n");
|
---|
439 | break;
|
---|
440 |
|
---|
441 | case 'F':
|
---|
442 | {
|
---|
443 | printf ("\nFile Header: \n\n");
|
---|
444 | printf (" table = %d\n", gdbm_file->header->dir);
|
---|
445 | printf (" table size = %d\n", gdbm_file->header->dir_size);
|
---|
446 | printf (" table bits = %d\n", gdbm_file->header->dir_bits);
|
---|
447 | printf (" block size = %d\n", gdbm_file->header->block_size);
|
---|
448 | printf (" bucket elems = %d\n", gdbm_file->header->bucket_elems);
|
---|
449 | printf (" bucket size = %d\n", gdbm_file->header->bucket_size);
|
---|
450 | printf (" header magic = %x\n", gdbm_file->header->header_magic);
|
---|
451 | printf (" next block = %d\n", gdbm_file->header->next_block);
|
---|
452 | printf (" avail size = %d\n", gdbm_file->header->avail.size);
|
---|
453 | printf (" avail count = %d\n", gdbm_file->header->avail.count);
|
---|
454 | printf (" avail nx blk = %d\n", gdbm_file->header->avail.next_block);
|
---|
455 | printf ("\n");
|
---|
456 | }
|
---|
457 | break;
|
---|
458 |
|
---|
459 | case 'H':
|
---|
460 | if (key_data.dptr != NULL) free (key_data.dptr);
|
---|
461 | printf ("key -> ");
|
---|
462 | gets (key_line);
|
---|
463 | key_data.dptr = key_line;
|
---|
464 | key_data.dsize = strlen (key_line)+1;
|
---|
465 | printf ("hash value = %x. \n\n", _gdbm_hash (key_data));
|
---|
466 | key_data.dptr = NULL;
|
---|
467 | break;
|
---|
468 |
|
---|
469 | case 'K':
|
---|
470 | _gdbm_print_bucket_cache (gdbm_file);
|
---|
471 | break;
|
---|
472 |
|
---|
473 | case 'V':
|
---|
474 | printf ("%s\n\n", gdbm_version);
|
---|
475 | break;
|
---|
476 |
|
---|
477 | case '?':
|
---|
478 | printf ("c - count (number of entries)\n");
|
---|
479 | printf ("d - delete\n");
|
---|
480 | printf ("f - fetch\n");
|
---|
481 | printf ("n - nextkey\n");
|
---|
482 | printf ("q - quit\n");
|
---|
483 | printf ("s - store\n");
|
---|
484 | printf ("1 - firstkey\n");
|
---|
485 | printf ("2 - nextkey on last key (from n, 1 or 2)\n\n");
|
---|
486 |
|
---|
487 | printf ("r - reorganize\n");
|
---|
488 | printf ("A - print avail list\n");
|
---|
489 | printf ("B - get and print current bucket n\n");
|
---|
490 | printf ("C - print current bucket\n");
|
---|
491 | printf ("D - print hash directory\n");
|
---|
492 | printf ("F - print file header\n");
|
---|
493 | printf ("H - hash value of key\n");
|
---|
494 | printf ("K - print the bucket cache\n");
|
---|
495 | printf ("V - print version of gdbm\n");
|
---|
496 | break;
|
---|
497 |
|
---|
498 | default:
|
---|
499 | printf ("What? \n\n");
|
---|
500 | break;
|
---|
501 |
|
---|
502 | }
|
---|
503 | }
|
---|
504 |
|
---|
505 | /* Quit normally. */
|
---|
506 | exit (0);
|
---|
507 |
|
---|
508 | }
|
---|