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1 | /* |
2 | |
3 | DB_File.xs -- Perl 5 interface to Berkeley DB |
4 | |
5 | written by Paul Marquess (pmarquess@bfsec.bt.co.uk) |
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6 | last modified 20th Nov 1997 |
7 | version 1.56 |
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8 | |
9 | All comments/suggestions/problems are welcome |
10 | |
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11 | Copyright (c) 1995, 1996, 1997 Paul Marquess. All rights reserved. |
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12 | This program is free software; you can redistribute it and/or |
13 | modify it under the same terms as Perl itself. |
14 | |
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15 | Changes: |
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16 | 0.1 - Initial Release |
17 | 0.2 - No longer bombs out if dbopen returns an error. |
18 | 0.3 - Added some support for multiple btree compares |
19 | 1.0 - Complete support for multiple callbacks added. |
20 | Fixed a problem with pushing a value onto an empty list. |
21 | 1.01 - Fixed a SunOS core dump problem. |
22 | The return value from TIEHASH wasn't set to NULL when |
23 | dbopen returned an error. |
88108326 |
24 | 1.02 - Use ALIAS to define TIEARRAY. |
25 | Removed some redundant commented code. |
26 | Merged OS2 code into the main distribution. |
27 | Allow negative subscripts with RECNO interface. |
28 | Changed the default flags to O_CREAT|O_RDWR |
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29 | 1.03 - Added EXISTS |
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30 | 1.04 - fixed a couple of bugs in hash_cb. Patches supplied by |
31 | Dave Hammen, hammen@gothamcity.jsc.nasa.gov |
32 | 1.05 - Added logic to allow prefix & hash types to be specified via |
33 | Makefile.PL |
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34 | 1.06 - Minor namespace cleanup: Localized PrintBtree. |
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35 | 1.07 - Fixed bug with RECNO, where bval wasn't defaulting to "\n". |
36 | 1.08 - No change to DB_File.xs |
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37 | 1.09 - Default mode for dbopen changed to 0666 |
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38 | 1.10 - Fixed fd method so that it still returns -1 for |
39 | in-memory files when db 1.86 is used. |
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40 | 1.11 - No change to DB_File.xs |
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41 | 1.12 - No change to DB_File.xs |
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42 | 1.13 - Tidied up a few casts. |
43 | 1.14 - Made it illegal to tie an associative array to a RECNO |
44 | database and an ordinary array to a HASH or BTREE database. |
45 | 1.50 - Make work with both DB 1.x or DB 2.x |
46 | 1.51 - Fixed a bug in mapping 1.x O_RDONLY flag to 2.x DB_RDONLY equivalent |
47 | 1.52 - Patch from Gisle Aas <gisle@aas.no> to suppress "use of |
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48 | undefined value" warning with db_get and db_seq. |
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49 | 1.53 - Added DB_RENUMBER to flags for recno. |
50 | 1.54 - Fixed bug in the fd method |
51 | 1.55 - Fix for AIX from Jarkko Hietaniemi |
52 | 1.56 - No change to DB_File.xs |
53 | |
54 | |
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55 | |
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56 | */ |
57 | |
58 | #include "EXTERN.h" |
59 | #include "perl.h" |
60 | #include "XSUB.h" |
61 | |
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62 | /* Being the Berkeley DB we prefer the <sys/cdefs.h> (which will be |
63 | * shortly #included by the <db.h>) __attribute__ to the possibly |
64 | * already defined __attribute__, for example by GNUC or by Perl. */ |
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65 | |
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66 | #undef __attribute__ |
67 | |
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68 | #include <db.h> |
69 | |
70 | #include <fcntl.h> |
71 | |
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72 | /* #define TRACE */ |
73 | |
74 | |
75 | |
76 | #ifdef DB_VERSION_MAJOR |
77 | |
78 | /* map version 2 features & constants onto their version 1 equivalent */ |
79 | |
80 | #ifdef DB_Prefix_t |
81 | #undef DB_Prefix_t |
82 | #endif |
83 | #define DB_Prefix_t size_t |
84 | |
85 | #ifdef DB_Hash_t |
86 | #undef DB_Hash_t |
87 | #endif |
88 | #define DB_Hash_t u_int32_t |
89 | |
90 | /* DBTYPE stays the same */ |
91 | /* HASHINFO, RECNOINFO and BTREEINFO map to DB_INFO */ |
92 | typedef DB_INFO INFO ; |
93 | |
94 | /* version 2 has db_recno_t in place of recno_t */ |
95 | typedef db_recno_t recno_t; |
96 | |
97 | |
98 | #define R_CURSOR DB_SET_RANGE |
99 | #define R_FIRST DB_FIRST |
100 | #define R_IAFTER DB_AFTER |
101 | #define R_IBEFORE DB_BEFORE |
102 | #define R_LAST DB_LAST |
103 | #define R_NEXT DB_NEXT |
104 | #define R_NOOVERWRITE DB_NOOVERWRITE |
105 | #define R_PREV DB_PREV |
106 | #define R_SETCURSOR 0 |
107 | #define R_RECNOSYNC 0 |
108 | #define R_FIXEDLEN DB_FIXEDLEN |
109 | #define R_DUP DB_DUP |
110 | |
111 | #define db_HA_hash h_hash |
112 | #define db_HA_ffactor h_ffactor |
113 | #define db_HA_nelem h_nelem |
114 | #define db_HA_bsize db_pagesize |
115 | #define db_HA_cachesize db_cachesize |
116 | #define db_HA_lorder db_lorder |
117 | |
118 | #define db_BT_compare bt_compare |
119 | #define db_BT_prefix bt_prefix |
120 | #define db_BT_flags flags |
121 | #define db_BT_psize db_pagesize |
122 | #define db_BT_cachesize db_cachesize |
123 | #define db_BT_lorder db_lorder |
124 | #define db_BT_maxkeypage |
125 | #define db_BT_minkeypage |
126 | |
127 | |
128 | #define db_RE_reclen re_len |
129 | #define db_RE_flags flags |
130 | #define db_RE_bval re_pad |
131 | #define db_RE_bfname re_source |
132 | #define db_RE_psize db_pagesize |
133 | #define db_RE_cachesize db_cachesize |
134 | #define db_RE_lorder db_lorder |
135 | |
136 | #define TXN NULL, |
137 | |
138 | #define do_SEQ(db, key, value, flag) (db->cursor->c_get)(db->cursor, &key, &value, flag) |
139 | |
140 | |
141 | #define DBT_flags(x) x.flags = 0 |
142 | #define DB_flags(x, v) x |= v |
143 | |
144 | #else /* db version 1.x */ |
145 | |
146 | typedef union INFO { |
147 | HASHINFO hash ; |
148 | RECNOINFO recno ; |
149 | BTREEINFO btree ; |
150 | } INFO ; |
151 | |
152 | |
610ab055 |
153 | #ifdef mDB_Prefix_t |
154 | #ifdef DB_Prefix_t |
155 | #undef DB_Prefix_t |
156 | #endif |
157 | #define DB_Prefix_t mDB_Prefix_t |
158 | #endif |
159 | |
160 | #ifdef mDB_Hash_t |
161 | #ifdef DB_Hash_t |
162 | #undef DB_Hash_t |
163 | #endif |
164 | #define DB_Hash_t mDB_Hash_t |
165 | #endif |
166 | |
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167 | #define db_HA_hash hash.hash |
168 | #define db_HA_ffactor hash.ffactor |
169 | #define db_HA_nelem hash.nelem |
170 | #define db_HA_bsize hash.bsize |
171 | #define db_HA_cachesize hash.cachesize |
172 | #define db_HA_lorder hash.lorder |
173 | |
174 | #define db_BT_compare btree.compare |
175 | #define db_BT_prefix btree.prefix |
176 | #define db_BT_flags btree.flags |
177 | #define db_BT_psize btree.psize |
178 | #define db_BT_cachesize btree.cachesize |
179 | #define db_BT_lorder btree.lorder |
180 | #define db_BT_maxkeypage btree.maxkeypage |
181 | #define db_BT_minkeypage btree.minkeypage |
182 | |
183 | #define db_RE_reclen recno.reclen |
184 | #define db_RE_flags recno.flags |
185 | #define db_RE_bval recno.bval |
186 | #define db_RE_bfname recno.bfname |
187 | #define db_RE_psize recno.psize |
188 | #define db_RE_cachesize recno.cachesize |
189 | #define db_RE_lorder recno.lorder |
190 | |
191 | #define TXN |
192 | |
193 | #define do_SEQ(db, key, value, flag) (db->dbp->seq)(db->dbp, &key, &value, flag) |
194 | #define DBT_flags(x) |
195 | #define DB_flags(x, v) |
196 | |
197 | #endif /* db version 1 */ |
198 | |
199 | |
200 | |
201 | #define db_DELETE(db, key, flags) ((db->dbp)->del)(db->dbp, TXN &key, flags) |
202 | #define db_STORE(db, key, value, flags) ((db->dbp)->put)(db->dbp, TXN &key, &value, flags) |
203 | #define db_FETCH(db, key, flags) ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) |
204 | |
205 | #define db_sync(db, flags) ((db->dbp)->sync)(db->dbp, flags) |
206 | #define db_get(db, key, value, flags) ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) |
207 | #ifdef DB_VERSION_MAJOR |
208 | #define db_DESTROY(db) ((db->dbp)->close)(db->dbp, 0) |
209 | #define db_close(db) ((db->dbp)->close)(db->dbp, 0) |
210 | #define db_del(db, key, flags) ((flags & R_CURSOR) \ |
211 | ? ((db->cursor)->c_del)(db->cursor, 0) \ |
212 | : ((db->dbp)->del)(db->dbp, NULL, &key, flags) ) |
213 | |
214 | #else |
215 | |
216 | #define db_DESTROY(db) ((db->dbp)->close)(db->dbp) |
217 | #define db_close(db) ((db->dbp)->close)(db->dbp) |
218 | #define db_del(db, key, flags) ((db->dbp)->del)(db->dbp, &key, flags) |
219 | #define db_put(db, key, value, flags) ((db->dbp)->put)(db->dbp, &key, &value, flags) |
220 | |
221 | #endif |
222 | |
223 | #define db_seq(db, key, value, flags) do_SEQ(db, key, value, flags) |
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224 | |
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225 | typedef struct { |
226 | DBTYPE type ; |
227 | DB * dbp ; |
228 | SV * compare ; |
229 | SV * prefix ; |
230 | SV * hash ; |
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231 | int in_memory ; |
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232 | INFO info ; |
233 | #ifdef DB_VERSION_MAJOR |
234 | DBC * cursor ; |
235 | #endif |
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236 | } DB_File_type; |
237 | |
238 | typedef DB_File_type * DB_File ; |
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239 | typedef DBT DBTKEY ; |
240 | |
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241 | |
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242 | #define OutputValue(arg, name) \ |
243 | { if (RETVAL == 0) { \ |
244 | sv_setpvn(arg, name.data, name.size) ; \ |
245 | } \ |
246 | } |
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247 | |
248 | #define OutputKey(arg, name) \ |
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249 | { if (RETVAL == 0) \ |
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250 | { \ |
88108326 |
251 | if (db->type != DB_RECNO) { \ |
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252 | sv_setpvn(arg, name.data, name.size); \ |
88108326 |
253 | } \ |
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254 | else \ |
255 | sv_setiv(arg, (I32)*(I32*)name.data - 1); \ |
256 | } \ |
257 | } |
258 | |
259 | /* Internal Global Data */ |
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260 | static recno_t Value ; |
8e07c86e |
261 | static recno_t zero = 0 ; |
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262 | static DB_File CurrentDB ; |
263 | static DBTKEY empty ; |
264 | |
265 | #ifdef DB_VERSION_MAJOR |
266 | |
267 | static int |
268 | db_put(db, key, value, flags) |
269 | DB_File db ; |
270 | DBTKEY key ; |
271 | DBT value ; |
272 | u_int flags ; |
273 | |
274 | { |
275 | int status ; |
276 | |
277 | if (flags & R_CURSOR) { |
278 | status = ((db->cursor)->c_del)(db->cursor, 0); |
279 | if (status != 0) |
280 | return status ; |
281 | |
282 | flags &= ~R_CURSOR ; |
283 | } |
284 | |
285 | return ((db->dbp)->put)(db->dbp, NULL, &key, &value, flags) ; |
286 | |
287 | } |
288 | |
289 | #endif /* DB_VERSION_MAJOR */ |
290 | |
291 | static void |
292 | GetVersionInfo() |
293 | { |
294 | SV * ver_sv = perl_get_sv("DB_File::db_version", TRUE) ; |
295 | #ifdef DB_VERSION_MAJOR |
296 | int Major, Minor, Patch ; |
297 | |
298 | (void)db_version(&Major, &Minor, &Patch) ; |
299 | |
300 | /* check that libdb is recent enough */ |
301 | if (Major == 2 && Minor == 0 && Patch < 5) |
302 | croak("DB_File needs Berkeley DB 2.0.5 or greater, you have %d.%d.%d\n", |
303 | Major, Minor, Patch) ; |
304 | |
305 | #if PATCHLEVEL > 3 |
306 | sv_setpvf(ver_sv, "%d.%d", Major, Minor) ; |
307 | #else |
308 | { |
309 | char buffer[40] ; |
310 | sprintf(buffer, "%d.%d", Major, Minor) ; |
311 | sv_setpv(ver_sv, buffer) ; |
312 | } |
313 | #endif |
314 | |
315 | #else |
316 | sv_setiv(ver_sv, 1) ; |
317 | #endif |
318 | |
319 | } |
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320 | |
321 | |
322 | static int |
323 | btree_compare(key1, key2) |
324 | const DBT * key1 ; |
325 | const DBT * key2 ; |
326 | { |
327 | dSP ; |
328 | void * data1, * data2 ; |
329 | int retval ; |
330 | int count ; |
331 | |
332 | data1 = key1->data ; |
333 | data2 = key2->data ; |
334 | |
335 | /* As newSVpv will assume that the data pointer is a null terminated C |
336 | string if the size parameter is 0, make sure that data points to an |
337 | empty string if the length is 0 |
338 | */ |
339 | if (key1->size == 0) |
340 | data1 = "" ; |
341 | if (key2->size == 0) |
342 | data2 = "" ; |
343 | |
344 | ENTER ; |
345 | SAVETMPS; |
346 | |
347 | PUSHMARK(sp) ; |
348 | EXTEND(sp,2) ; |
349 | PUSHs(sv_2mortal(newSVpv(data1,key1->size))); |
350 | PUSHs(sv_2mortal(newSVpv(data2,key2->size))); |
351 | PUTBACK ; |
352 | |
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353 | count = perl_call_sv(CurrentDB->compare, G_SCALAR); |
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354 | |
355 | SPAGAIN ; |
356 | |
357 | if (count != 1) |
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358 | croak ("DB_File btree_compare: expected 1 return value from compare sub, got %d\n", count) ; |
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359 | |
360 | retval = POPi ; |
361 | |
362 | PUTBACK ; |
363 | FREETMPS ; |
364 | LEAVE ; |
365 | return (retval) ; |
366 | |
367 | } |
368 | |
ecfc5424 |
369 | static DB_Prefix_t |
a0d0e21e |
370 | btree_prefix(key1, key2) |
371 | const DBT * key1 ; |
372 | const DBT * key2 ; |
373 | { |
374 | dSP ; |
375 | void * data1, * data2 ; |
376 | int retval ; |
377 | int count ; |
378 | |
379 | data1 = key1->data ; |
380 | data2 = key2->data ; |
381 | |
382 | /* As newSVpv will assume that the data pointer is a null terminated C |
383 | string if the size parameter is 0, make sure that data points to an |
384 | empty string if the length is 0 |
385 | */ |
386 | if (key1->size == 0) |
387 | data1 = "" ; |
388 | if (key2->size == 0) |
389 | data2 = "" ; |
390 | |
391 | ENTER ; |
392 | SAVETMPS; |
393 | |
394 | PUSHMARK(sp) ; |
395 | EXTEND(sp,2) ; |
396 | PUSHs(sv_2mortal(newSVpv(data1,key1->size))); |
397 | PUSHs(sv_2mortal(newSVpv(data2,key2->size))); |
398 | PUTBACK ; |
399 | |
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400 | count = perl_call_sv(CurrentDB->prefix, G_SCALAR); |
a0d0e21e |
401 | |
402 | SPAGAIN ; |
403 | |
404 | if (count != 1) |
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405 | croak ("DB_File btree_prefix: expected 1 return value from prefix sub, got %d\n", count) ; |
a0d0e21e |
406 | |
407 | retval = POPi ; |
408 | |
409 | PUTBACK ; |
410 | FREETMPS ; |
411 | LEAVE ; |
412 | |
413 | return (retval) ; |
414 | } |
415 | |
ecfc5424 |
416 | static DB_Hash_t |
a0d0e21e |
417 | hash_cb(data, size) |
418 | const void * data ; |
419 | size_t size ; |
420 | { |
421 | dSP ; |
422 | int retval ; |
423 | int count ; |
424 | |
425 | if (size == 0) |
426 | data = "" ; |
427 | |
610ab055 |
428 | /* DGH - Next two lines added to fix corrupted stack problem */ |
429 | ENTER ; |
430 | SAVETMPS; |
431 | |
a0d0e21e |
432 | PUSHMARK(sp) ; |
610ab055 |
433 | |
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434 | XPUSHs(sv_2mortal(newSVpv((char*)data,size))); |
435 | PUTBACK ; |
436 | |
8e07c86e |
437 | count = perl_call_sv(CurrentDB->hash, G_SCALAR); |
a0d0e21e |
438 | |
439 | SPAGAIN ; |
440 | |
441 | if (count != 1) |
ff0cee69 |
442 | croak ("DB_File hash_cb: expected 1 return value from hash sub, got %d\n", count) ; |
a0d0e21e |
443 | |
444 | retval = POPi ; |
445 | |
446 | PUTBACK ; |
447 | FREETMPS ; |
448 | LEAVE ; |
449 | |
450 | return (retval) ; |
451 | } |
452 | |
453 | |
454 | #ifdef TRACE |
455 | |
456 | static void |
457 | PrintHash(hash) |
1f70e1ea |
458 | INFO * hash ; |
a0d0e21e |
459 | { |
460 | printf ("HASH Info\n") ; |
1f70e1ea |
461 | printf (" hash = %s\n", |
462 | (hash->db_HA_hash != NULL ? "redefined" : "default")) ; |
463 | printf (" bsize = %d\n", hash->db_HA_bsize) ; |
464 | printf (" ffactor = %d\n", hash->db_HA_ffactor) ; |
465 | printf (" nelem = %d\n", hash->db_HA_nelem) ; |
466 | printf (" cachesize = %d\n", hash->db_HA_cachesize) ; |
467 | printf (" lorder = %d\n", hash->db_HA_lorder) ; |
a0d0e21e |
468 | |
469 | } |
470 | |
471 | static void |
472 | PrintRecno(recno) |
1f70e1ea |
473 | INFO * recno ; |
a0d0e21e |
474 | { |
475 | printf ("RECNO Info\n") ; |
1f70e1ea |
476 | printf (" flags = %d\n", recno->db_RE_flags) ; |
477 | printf (" cachesize = %d\n", recno->db_RE_cachesize) ; |
478 | printf (" psize = %d\n", recno->db_RE_psize) ; |
479 | printf (" lorder = %d\n", recno->db_RE_lorder) ; |
480 | printf (" reclen = %ul\n", (unsigned long)recno->db_RE_reclen) ; |
481 | printf (" bval = %d 0x%x\n", recno->db_RE_bval, recno->db_RE_bval) ; |
482 | printf (" bfname = %d [%s]\n", recno->db_RE_bfname, recno->db_RE_bfname) ; |
a0d0e21e |
483 | } |
484 | |
ff68c719 |
485 | static void |
a0d0e21e |
486 | PrintBtree(btree) |
1f70e1ea |
487 | INFO * btree ; |
a0d0e21e |
488 | { |
489 | printf ("BTREE Info\n") ; |
1f70e1ea |
490 | printf (" compare = %s\n", |
491 | (btree->db_BT_compare ? "redefined" : "default")) ; |
492 | printf (" prefix = %s\n", |
493 | (btree->db_BT_prefix ? "redefined" : "default")) ; |
494 | printf (" flags = %d\n", btree->db_BT_flags) ; |
495 | printf (" cachesize = %d\n", btree->db_BT_cachesize) ; |
496 | printf (" psize = %d\n", btree->db_BT_psize) ; |
497 | #ifndef DB_VERSION_MAJOR |
498 | printf (" maxkeypage = %d\n", btree->db_BT_maxkeypage) ; |
499 | printf (" minkeypage = %d\n", btree->db_BT_minkeypage) ; |
500 | #endif |
501 | printf (" lorder = %d\n", btree->db_BT_lorder) ; |
a0d0e21e |
502 | } |
503 | |
504 | #else |
505 | |
506 | #define PrintRecno(recno) |
507 | #define PrintHash(hash) |
508 | #define PrintBtree(btree) |
509 | |
510 | #endif /* TRACE */ |
511 | |
512 | |
513 | static I32 |
514 | GetArrayLength(db) |
1f70e1ea |
515 | DB_File db ; |
a0d0e21e |
516 | { |
517 | DBT key ; |
518 | DBT value ; |
519 | int RETVAL ; |
520 | |
1f70e1ea |
521 | DBT_flags(key) ; |
522 | DBT_flags(value) ; |
523 | RETVAL = do_SEQ(db, key, value, R_LAST) ; |
a0d0e21e |
524 | if (RETVAL == 0) |
525 | RETVAL = *(I32 *)key.data ; |
1f70e1ea |
526 | else /* No key means empty file */ |
a0d0e21e |
527 | RETVAL = 0 ; |
528 | |
a0b8c8c1 |
529 | return ((I32)RETVAL) ; |
a0d0e21e |
530 | } |
531 | |
88108326 |
532 | static recno_t |
533 | GetRecnoKey(db, value) |
534 | DB_File db ; |
535 | I32 value ; |
536 | { |
537 | if (value < 0) { |
538 | /* Get the length of the array */ |
1f70e1ea |
539 | I32 length = GetArrayLength(db) ; |
88108326 |
540 | |
541 | /* check for attempt to write before start of array */ |
542 | if (length + value + 1 <= 0) |
ff0cee69 |
543 | croak("Modification of non-creatable array value attempted, subscript %ld", (long)value) ; |
88108326 |
544 | |
545 | value = length + value + 1 ; |
546 | } |
547 | else |
548 | ++ value ; |
549 | |
550 | return value ; |
a0d0e21e |
551 | } |
552 | |
553 | static DB_File |
05475680 |
554 | ParseOpenInfo(isHASH, name, flags, mode, sv) |
555 | int isHASH ; |
a0d0e21e |
556 | char * name ; |
557 | int flags ; |
558 | int mode ; |
559 | SV * sv ; |
a0d0e21e |
560 | { |
561 | SV ** svp; |
562 | HV * action ; |
8e07c86e |
563 | DB_File RETVAL = (DB_File)safemalloc(sizeof(DB_File_type)) ; |
a0d0e21e |
564 | void * openinfo = NULL ; |
1f70e1ea |
565 | INFO * info = &RETVAL->info ; |
566 | |
567 | /* printf("In ParseOpenInfo name=[%s] flags=[%d] mode = [%d]\n", name, flags, mode) ; */ |
568 | Zero(RETVAL, 1, DB_File_type) ; |
a0d0e21e |
569 | |
88108326 |
570 | /* Default to HASH */ |
8e07c86e |
571 | RETVAL->hash = RETVAL->compare = RETVAL->prefix = NULL ; |
572 | RETVAL->type = DB_HASH ; |
a0d0e21e |
573 | |
610ab055 |
574 | /* DGH - Next line added to avoid SEGV on existing hash DB */ |
575 | CurrentDB = RETVAL; |
576 | |
a0b8c8c1 |
577 | /* fd for 1.86 hash in memory files doesn't return -1 like 1.85 */ |
578 | RETVAL->in_memory = (name == NULL) ; |
579 | |
a0d0e21e |
580 | if (sv) |
581 | { |
582 | if (! SvROK(sv) ) |
583 | croak ("type parameter is not a reference") ; |
584 | |
36477c24 |
585 | svp = hv_fetch( (HV*)SvRV(sv), "GOT", 3, FALSE) ; |
586 | if (svp && SvOK(*svp)) |
587 | action = (HV*) SvRV(*svp) ; |
588 | else |
589 | croak("internal error") ; |
610ab055 |
590 | |
a0d0e21e |
591 | if (sv_isa(sv, "DB_File::HASHINFO")) |
592 | { |
05475680 |
593 | |
594 | if (!isHASH) |
595 | croak("DB_File can only tie an associative array to a DB_HASH database") ; |
596 | |
8e07c86e |
597 | RETVAL->type = DB_HASH ; |
610ab055 |
598 | openinfo = (void*)info ; |
a0d0e21e |
599 | |
600 | svp = hv_fetch(action, "hash", 4, FALSE); |
601 | |
602 | if (svp && SvOK(*svp)) |
603 | { |
1f70e1ea |
604 | info->db_HA_hash = hash_cb ; |
8e07c86e |
605 | RETVAL->hash = newSVsv(*svp) ; |
a0d0e21e |
606 | } |
607 | else |
1f70e1ea |
608 | info->db_HA_hash = NULL ; |
a0d0e21e |
609 | |
a0d0e21e |
610 | svp = hv_fetch(action, "ffactor", 7, FALSE); |
1f70e1ea |
611 | info->db_HA_ffactor = svp ? SvIV(*svp) : 0; |
a0d0e21e |
612 | |
613 | svp = hv_fetch(action, "nelem", 5, FALSE); |
1f70e1ea |
614 | info->db_HA_nelem = svp ? SvIV(*svp) : 0; |
a0d0e21e |
615 | |
1f70e1ea |
616 | svp = hv_fetch(action, "bsize", 5, FALSE); |
617 | info->db_HA_bsize = svp ? SvIV(*svp) : 0; |
618 | |
a0d0e21e |
619 | svp = hv_fetch(action, "cachesize", 9, FALSE); |
1f70e1ea |
620 | info->db_HA_cachesize = svp ? SvIV(*svp) : 0; |
a0d0e21e |
621 | |
622 | svp = hv_fetch(action, "lorder", 6, FALSE); |
1f70e1ea |
623 | info->db_HA_lorder = svp ? SvIV(*svp) : 0; |
a0d0e21e |
624 | |
625 | PrintHash(info) ; |
626 | } |
627 | else if (sv_isa(sv, "DB_File::BTREEINFO")) |
628 | { |
05475680 |
629 | if (!isHASH) |
630 | croak("DB_File can only tie an associative array to a DB_BTREE database"); |
631 | |
8e07c86e |
632 | RETVAL->type = DB_BTREE ; |
610ab055 |
633 | openinfo = (void*)info ; |
a0d0e21e |
634 | |
635 | svp = hv_fetch(action, "compare", 7, FALSE); |
636 | if (svp && SvOK(*svp)) |
637 | { |
1f70e1ea |
638 | info->db_BT_compare = btree_compare ; |
8e07c86e |
639 | RETVAL->compare = newSVsv(*svp) ; |
a0d0e21e |
640 | } |
641 | else |
1f70e1ea |
642 | info->db_BT_compare = NULL ; |
a0d0e21e |
643 | |
644 | svp = hv_fetch(action, "prefix", 6, FALSE); |
645 | if (svp && SvOK(*svp)) |
646 | { |
1f70e1ea |
647 | info->db_BT_prefix = btree_prefix ; |
8e07c86e |
648 | RETVAL->prefix = newSVsv(*svp) ; |
a0d0e21e |
649 | } |
650 | else |
1f70e1ea |
651 | info->db_BT_prefix = NULL ; |
a0d0e21e |
652 | |
653 | svp = hv_fetch(action, "flags", 5, FALSE); |
1f70e1ea |
654 | info->db_BT_flags = svp ? SvIV(*svp) : 0; |
a0d0e21e |
655 | |
656 | svp = hv_fetch(action, "cachesize", 9, FALSE); |
1f70e1ea |
657 | info->db_BT_cachesize = svp ? SvIV(*svp) : 0; |
a0d0e21e |
658 | |
1f70e1ea |
659 | #ifndef DB_VERSION_MAJOR |
a0d0e21e |
660 | svp = hv_fetch(action, "minkeypage", 10, FALSE); |
610ab055 |
661 | info->btree.minkeypage = svp ? SvIV(*svp) : 0; |
a0d0e21e |
662 | |
663 | svp = hv_fetch(action, "maxkeypage", 10, FALSE); |
610ab055 |
664 | info->btree.maxkeypage = svp ? SvIV(*svp) : 0; |
1f70e1ea |
665 | #endif |
a0d0e21e |
666 | |
667 | svp = hv_fetch(action, "psize", 5, FALSE); |
1f70e1ea |
668 | info->db_BT_psize = svp ? SvIV(*svp) : 0; |
a0d0e21e |
669 | |
670 | svp = hv_fetch(action, "lorder", 6, FALSE); |
1f70e1ea |
671 | info->db_BT_lorder = svp ? SvIV(*svp) : 0; |
a0d0e21e |
672 | |
673 | PrintBtree(info) ; |
674 | |
675 | } |
676 | else if (sv_isa(sv, "DB_File::RECNOINFO")) |
677 | { |
05475680 |
678 | if (isHASH) |
679 | croak("DB_File can only tie an array to a DB_RECNO database"); |
680 | |
8e07c86e |
681 | RETVAL->type = DB_RECNO ; |
610ab055 |
682 | openinfo = (void *)info ; |
a0d0e21e |
683 | |
1f70e1ea |
684 | info->db_RE_flags = 0 ; |
685 | |
a0d0e21e |
686 | svp = hv_fetch(action, "flags", 5, FALSE); |
1f70e1ea |
687 | info->db_RE_flags = (u_long) (svp ? SvIV(*svp) : 0); |
688 | |
689 | svp = hv_fetch(action, "reclen", 6, FALSE); |
690 | info->db_RE_reclen = (size_t) (svp ? SvIV(*svp) : 0); |
a0d0e21e |
691 | |
692 | svp = hv_fetch(action, "cachesize", 9, FALSE); |
1f70e1ea |
693 | info->db_RE_cachesize = (u_int) (svp ? SvIV(*svp) : 0); |
a0d0e21e |
694 | |
695 | svp = hv_fetch(action, "psize", 5, FALSE); |
1f70e1ea |
696 | info->db_RE_psize = (u_int) (svp ? SvIV(*svp) : 0); |
a0d0e21e |
697 | |
698 | svp = hv_fetch(action, "lorder", 6, FALSE); |
1f70e1ea |
699 | info->db_RE_lorder = (int) (svp ? SvIV(*svp) : 0); |
700 | |
701 | #ifdef DB_VERSION_MAJOR |
702 | info->re_source = name ; |
703 | name = NULL ; |
704 | #endif |
705 | svp = hv_fetch(action, "bfname", 6, FALSE); |
706 | if (svp && SvOK(*svp)) { |
707 | char * ptr = SvPV(*svp,na) ; |
708 | #ifdef DB_VERSION_MAJOR |
709 | name = (char*) na ? ptr : NULL ; |
710 | #else |
711 | info->db_RE_bfname = (char*) (na ? ptr : NULL) ; |
712 | #endif |
713 | } |
714 | else |
715 | #ifdef DB_VERSION_MAJOR |
716 | name = NULL ; |
717 | #else |
718 | info->db_RE_bfname = NULL ; |
719 | #endif |
a0d0e21e |
720 | |
721 | svp = hv_fetch(action, "bval", 4, FALSE); |
1f70e1ea |
722 | #ifdef DB_VERSION_MAJOR |
a0d0e21e |
723 | if (svp && SvOK(*svp)) |
724 | { |
1f70e1ea |
725 | int value ; |
a0d0e21e |
726 | if (SvPOK(*svp)) |
1f70e1ea |
727 | value = (int)*SvPV(*svp, na) ; |
a0d0e21e |
728 | else |
1f70e1ea |
729 | value = SvIV(*svp) ; |
730 | |
731 | if (info->flags & DB_FIXEDLEN) { |
732 | info->re_pad = value ; |
733 | info->flags |= DB_PAD ; |
734 | } |
735 | else { |
736 | info->re_delim = value ; |
737 | info->flags |= DB_DELIMITER ; |
738 | } |
739 | |
740 | } |
741 | #else |
742 | if (svp && SvOK(*svp)) |
743 | { |
744 | if (SvPOK(*svp)) |
745 | info->db_RE_bval = (u_char)*SvPV(*svp, na) ; |
746 | else |
747 | info->db_RE_bval = (u_char)(unsigned long) SvIV(*svp) ; |
748 | DB_flags(info->flags, DB_DELIMITER) ; |
749 | |
a0d0e21e |
750 | } |
751 | else |
752 | { |
1f70e1ea |
753 | if (info->db_RE_flags & R_FIXEDLEN) |
754 | info->db_RE_bval = (u_char) ' ' ; |
a0d0e21e |
755 | else |
1f70e1ea |
756 | info->db_RE_bval = (u_char) '\n' ; |
757 | DB_flags(info->flags, DB_DELIMITER) ; |
a0d0e21e |
758 | } |
1f70e1ea |
759 | #endif |
a0d0e21e |
760 | |
1f70e1ea |
761 | #ifdef DB_RENUMBER |
762 | info->flags |= DB_RENUMBER ; |
763 | #endif |
764 | |
a0d0e21e |
765 | PrintRecno(info) ; |
766 | } |
767 | else |
768 | croak("type is not of type DB_File::HASHINFO, DB_File::BTREEINFO or DB_File::RECNOINFO"); |
769 | } |
770 | |
771 | |
88108326 |
772 | /* OS2 Specific Code */ |
773 | #ifdef OS2 |
774 | #ifdef __EMX__ |
775 | flags |= O_BINARY; |
776 | #endif /* __EMX__ */ |
777 | #endif /* OS2 */ |
a0d0e21e |
778 | |
1f70e1ea |
779 | #ifdef DB_VERSION_MAJOR |
780 | |
781 | { |
782 | int Flags = 0 ; |
783 | int status ; |
784 | |
785 | /* Map 1.x flags to 2.x flags */ |
786 | if ((flags & O_CREAT) == O_CREAT) |
787 | Flags |= DB_CREATE ; |
788 | |
789 | #ifdef O_NONBLOCK |
790 | if ((flags & O_NONBLOCK) == O_NONBLOCK) |
791 | Flags |= DB_EXCL ; |
792 | #endif |
793 | |
794 | #if O_RDONLY == 0 |
795 | if (flags == O_RDONLY) |
796 | #else |
797 | if (flags & O_RDONLY) == O_RDONLY) |
798 | #endif |
799 | Flags |= DB_RDONLY ; |
800 | |
801 | #ifdef O_NONBLOCK |
802 | if ((flags & O_TRUNC) == O_TRUNC) |
803 | Flags |= DB_TRUNCATE ; |
804 | #endif |
805 | |
806 | status = db_open(name, RETVAL->type, Flags, mode, NULL, openinfo, &RETVAL->dbp) ; |
807 | if (status == 0) |
808 | status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor) ; |
809 | |
810 | if (status) |
811 | RETVAL->dbp = NULL ; |
812 | |
813 | } |
814 | #else |
88108326 |
815 | RETVAL->dbp = dbopen(name, flags, mode, RETVAL->type, openinfo) ; |
1f70e1ea |
816 | #endif |
a0d0e21e |
817 | |
818 | return (RETVAL) ; |
819 | } |
820 | |
821 | |
822 | static int |
823 | not_here(s) |
824 | char *s; |
825 | { |
826 | croak("DB_File::%s not implemented on this architecture", s); |
827 | return -1; |
828 | } |
829 | |
830 | static double |
831 | constant(name, arg) |
832 | char *name; |
833 | int arg; |
834 | { |
835 | errno = 0; |
836 | switch (*name) { |
837 | case 'A': |
838 | break; |
839 | case 'B': |
840 | if (strEQ(name, "BTREEMAGIC")) |
841 | #ifdef BTREEMAGIC |
842 | return BTREEMAGIC; |
843 | #else |
844 | goto not_there; |
845 | #endif |
846 | if (strEQ(name, "BTREEVERSION")) |
847 | #ifdef BTREEVERSION |
848 | return BTREEVERSION; |
849 | #else |
850 | goto not_there; |
851 | #endif |
852 | break; |
853 | case 'C': |
854 | break; |
855 | case 'D': |
856 | if (strEQ(name, "DB_LOCK")) |
857 | #ifdef DB_LOCK |
858 | return DB_LOCK; |
859 | #else |
860 | goto not_there; |
861 | #endif |
862 | if (strEQ(name, "DB_SHMEM")) |
863 | #ifdef DB_SHMEM |
864 | return DB_SHMEM; |
865 | #else |
866 | goto not_there; |
867 | #endif |
868 | if (strEQ(name, "DB_TXN")) |
869 | #ifdef DB_TXN |
870 | return (U32)DB_TXN; |
871 | #else |
872 | goto not_there; |
873 | #endif |
874 | break; |
875 | case 'E': |
876 | break; |
877 | case 'F': |
878 | break; |
879 | case 'G': |
880 | break; |
881 | case 'H': |
882 | if (strEQ(name, "HASHMAGIC")) |
883 | #ifdef HASHMAGIC |
884 | return HASHMAGIC; |
885 | #else |
886 | goto not_there; |
887 | #endif |
888 | if (strEQ(name, "HASHVERSION")) |
889 | #ifdef HASHVERSION |
890 | return HASHVERSION; |
891 | #else |
892 | goto not_there; |
893 | #endif |
894 | break; |
895 | case 'I': |
896 | break; |
897 | case 'J': |
898 | break; |
899 | case 'K': |
900 | break; |
901 | case 'L': |
902 | break; |
903 | case 'M': |
904 | if (strEQ(name, "MAX_PAGE_NUMBER")) |
905 | #ifdef MAX_PAGE_NUMBER |
906 | return (U32)MAX_PAGE_NUMBER; |
907 | #else |
908 | goto not_there; |
909 | #endif |
910 | if (strEQ(name, "MAX_PAGE_OFFSET")) |
911 | #ifdef MAX_PAGE_OFFSET |
912 | return MAX_PAGE_OFFSET; |
913 | #else |
914 | goto not_there; |
915 | #endif |
916 | if (strEQ(name, "MAX_REC_NUMBER")) |
917 | #ifdef MAX_REC_NUMBER |
918 | return (U32)MAX_REC_NUMBER; |
919 | #else |
920 | goto not_there; |
921 | #endif |
922 | break; |
923 | case 'N': |
924 | break; |
925 | case 'O': |
926 | break; |
927 | case 'P': |
928 | break; |
929 | case 'Q': |
930 | break; |
931 | case 'R': |
932 | if (strEQ(name, "RET_ERROR")) |
933 | #ifdef RET_ERROR |
934 | return RET_ERROR; |
935 | #else |
936 | goto not_there; |
937 | #endif |
938 | if (strEQ(name, "RET_SPECIAL")) |
939 | #ifdef RET_SPECIAL |
940 | return RET_SPECIAL; |
941 | #else |
942 | goto not_there; |
943 | #endif |
944 | if (strEQ(name, "RET_SUCCESS")) |
945 | #ifdef RET_SUCCESS |
946 | return RET_SUCCESS; |
947 | #else |
948 | goto not_there; |
949 | #endif |
950 | if (strEQ(name, "R_CURSOR")) |
951 | #ifdef R_CURSOR |
952 | return R_CURSOR; |
953 | #else |
954 | goto not_there; |
955 | #endif |
956 | if (strEQ(name, "R_DUP")) |
957 | #ifdef R_DUP |
958 | return R_DUP; |
959 | #else |
960 | goto not_there; |
961 | #endif |
962 | if (strEQ(name, "R_FIRST")) |
963 | #ifdef R_FIRST |
964 | return R_FIRST; |
965 | #else |
966 | goto not_there; |
967 | #endif |
968 | if (strEQ(name, "R_FIXEDLEN")) |
969 | #ifdef R_FIXEDLEN |
970 | return R_FIXEDLEN; |
971 | #else |
972 | goto not_there; |
973 | #endif |
974 | if (strEQ(name, "R_IAFTER")) |
975 | #ifdef R_IAFTER |
976 | return R_IAFTER; |
977 | #else |
978 | goto not_there; |
979 | #endif |
980 | if (strEQ(name, "R_IBEFORE")) |
981 | #ifdef R_IBEFORE |
982 | return R_IBEFORE; |
983 | #else |
984 | goto not_there; |
985 | #endif |
986 | if (strEQ(name, "R_LAST")) |
987 | #ifdef R_LAST |
988 | return R_LAST; |
989 | #else |
990 | goto not_there; |
991 | #endif |
992 | if (strEQ(name, "R_NEXT")) |
993 | #ifdef R_NEXT |
994 | return R_NEXT; |
995 | #else |
996 | goto not_there; |
997 | #endif |
998 | if (strEQ(name, "R_NOKEY")) |
999 | #ifdef R_NOKEY |
1000 | return R_NOKEY; |
1001 | #else |
1002 | goto not_there; |
1003 | #endif |
1004 | if (strEQ(name, "R_NOOVERWRITE")) |
1005 | #ifdef R_NOOVERWRITE |
1006 | return R_NOOVERWRITE; |
1007 | #else |
1008 | goto not_there; |
1009 | #endif |
1010 | if (strEQ(name, "R_PREV")) |
1011 | #ifdef R_PREV |
1012 | return R_PREV; |
1013 | #else |
1014 | goto not_there; |
1015 | #endif |
1016 | if (strEQ(name, "R_RECNOSYNC")) |
1017 | #ifdef R_RECNOSYNC |
1018 | return R_RECNOSYNC; |
1019 | #else |
1020 | goto not_there; |
1021 | #endif |
1022 | if (strEQ(name, "R_SETCURSOR")) |
1023 | #ifdef R_SETCURSOR |
1024 | return R_SETCURSOR; |
1025 | #else |
1026 | goto not_there; |
1027 | #endif |
1028 | if (strEQ(name, "R_SNAPSHOT")) |
1029 | #ifdef R_SNAPSHOT |
1030 | return R_SNAPSHOT; |
1031 | #else |
1032 | goto not_there; |
1033 | #endif |
1034 | break; |
1035 | case 'S': |
1036 | break; |
1037 | case 'T': |
1038 | break; |
1039 | case 'U': |
1040 | break; |
1041 | case 'V': |
1042 | break; |
1043 | case 'W': |
1044 | break; |
1045 | case 'X': |
1046 | break; |
1047 | case 'Y': |
1048 | break; |
1049 | case 'Z': |
1050 | break; |
1051 | case '_': |
a0d0e21e |
1052 | break; |
1053 | } |
1054 | errno = EINVAL; |
1055 | return 0; |
1056 | |
1057 | not_there: |
1058 | errno = ENOENT; |
1059 | return 0; |
1060 | } |
1061 | |
1062 | MODULE = DB_File PACKAGE = DB_File PREFIX = db_ |
1063 | |
1f70e1ea |
1064 | BOOT: |
1065 | { |
1066 | GetVersionInfo() ; |
1067 | |
1068 | empty.data = &zero ; |
1069 | empty.size = sizeof(recno_t) ; |
1070 | DBT_flags(empty) ; |
1071 | } |
1072 | |
a0d0e21e |
1073 | double |
1074 | constant(name,arg) |
1075 | char * name |
1076 | int arg |
1077 | |
1078 | |
1079 | DB_File |
05475680 |
1080 | db_DoTie_(isHASH, dbtype, name=undef, flags=O_CREAT|O_RDWR, mode=0666, type=DB_HASH) |
1081 | int isHASH |
a0d0e21e |
1082 | char * dbtype |
1083 | int flags |
1084 | int mode |
1085 | CODE: |
1086 | { |
1087 | char * name = (char *) NULL ; |
1088 | SV * sv = (SV *) NULL ; |
1089 | |
05475680 |
1090 | if (items >= 3 && SvOK(ST(2))) |
1091 | name = (char*) SvPV(ST(2), na) ; |
a0d0e21e |
1092 | |
05475680 |
1093 | if (items == 6) |
1094 | sv = ST(5) ; |
a0d0e21e |
1095 | |
05475680 |
1096 | RETVAL = ParseOpenInfo(isHASH, name, flags, mode, sv) ; |
4633a7c4 |
1097 | if (RETVAL->dbp == NULL) |
1098 | RETVAL = NULL ; |
a0d0e21e |
1099 | } |
1100 | OUTPUT: |
1101 | RETVAL |
1102 | |
a0d0e21e |
1103 | int |
1104 | db_DESTROY(db) |
1105 | DB_File db |
8e07c86e |
1106 | INIT: |
1107 | CurrentDB = db ; |
1108 | CLEANUP: |
1109 | if (db->hash) |
1110 | SvREFCNT_dec(db->hash) ; |
1111 | if (db->compare) |
1112 | SvREFCNT_dec(db->compare) ; |
1113 | if (db->prefix) |
1114 | SvREFCNT_dec(db->prefix) ; |
1115 | Safefree(db) ; |
1f70e1ea |
1116 | #ifdef DB_VERSION_MAJOR |
1117 | if (RETVAL > 0) |
1118 | RETVAL = -1 ; |
1119 | #endif |
a0d0e21e |
1120 | |
1121 | |
1122 | int |
1123 | db_DELETE(db, key, flags=0) |
1124 | DB_File db |
1125 | DBTKEY key |
1126 | u_int flags |
8e07c86e |
1127 | INIT: |
1128 | CurrentDB = db ; |
a0d0e21e |
1129 | |
f6b705ef |
1130 | |
1131 | int |
1132 | db_EXISTS(db, key) |
1133 | DB_File db |
1134 | DBTKEY key |
1135 | CODE: |
1136 | { |
1137 | DBT value ; |
1138 | |
1f70e1ea |
1139 | DBT_flags(value) ; |
f6b705ef |
1140 | CurrentDB = db ; |
1f70e1ea |
1141 | RETVAL = (((db->dbp)->get)(db->dbp, TXN &key, &value, 0) == 0) ; |
f6b705ef |
1142 | } |
1143 | OUTPUT: |
1144 | RETVAL |
1145 | |
a0d0e21e |
1146 | int |
1147 | db_FETCH(db, key, flags=0) |
1148 | DB_File db |
1149 | DBTKEY key |
1150 | u_int flags |
1151 | CODE: |
1152 | { |
1f70e1ea |
1153 | DBT value ; |
a0d0e21e |
1154 | |
1f70e1ea |
1155 | DBT_flags(value) ; |
8e07c86e |
1156 | CurrentDB = db ; |
1f70e1ea |
1157 | /* RETVAL = ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) ; */ |
1158 | RETVAL = db_get(db, key, value, flags) ; |
a0d0e21e |
1159 | ST(0) = sv_newmortal(); |
1f70e1ea |
1160 | if (RETVAL == 0) |
a0d0e21e |
1161 | sv_setpvn(ST(0), value.data, value.size); |
1162 | } |
1163 | |
1164 | int |
1165 | db_STORE(db, key, value, flags=0) |
1166 | DB_File db |
1167 | DBTKEY key |
1168 | DBT value |
1169 | u_int flags |
8e07c86e |
1170 | INIT: |
1171 | CurrentDB = db ; |
a0d0e21e |
1172 | |
1173 | |
1174 | int |
1175 | db_FIRSTKEY(db) |
1176 | DB_File db |
1177 | CODE: |
1178 | { |
1f70e1ea |
1179 | DBTKEY key ; |
a0d0e21e |
1180 | DBT value ; |
4633a7c4 |
1181 | DB * Db = db->dbp ; |
a0d0e21e |
1182 | |
1f70e1ea |
1183 | DBT_flags(key) ; |
1184 | DBT_flags(value) ; |
8e07c86e |
1185 | CurrentDB = db ; |
1f70e1ea |
1186 | RETVAL = do_SEQ(db, key, value, R_FIRST) ; |
a0d0e21e |
1187 | ST(0) = sv_newmortal(); |
1188 | if (RETVAL == 0) |
1189 | { |
05475680 |
1190 | if (db->type != DB_RECNO) |
a0d0e21e |
1191 | sv_setpvn(ST(0), key.data, key.size); |
1192 | else |
1193 | sv_setiv(ST(0), (I32)*(I32*)key.data - 1); |
1194 | } |
1195 | } |
1196 | |
1197 | int |
1198 | db_NEXTKEY(db, key) |
1199 | DB_File db |
1200 | DBTKEY key |
1201 | CODE: |
1202 | { |
1203 | DBT value ; |
4633a7c4 |
1204 | DB * Db = db->dbp ; |
a0d0e21e |
1205 | |
1f70e1ea |
1206 | DBT_flags(value) ; |
8e07c86e |
1207 | CurrentDB = db ; |
1f70e1ea |
1208 | RETVAL = do_SEQ(db, key, value, R_NEXT) ; |
a0d0e21e |
1209 | ST(0) = sv_newmortal(); |
1210 | if (RETVAL == 0) |
1211 | { |
05475680 |
1212 | if (db->type != DB_RECNO) |
a0d0e21e |
1213 | sv_setpvn(ST(0), key.data, key.size); |
1214 | else |
1215 | sv_setiv(ST(0), (I32)*(I32*)key.data - 1); |
1216 | } |
1217 | } |
1218 | |
1219 | # |
1220 | # These would be nice for RECNO |
1221 | # |
1222 | |
1223 | int |
1224 | unshift(db, ...) |
1225 | DB_File db |
1226 | CODE: |
1227 | { |
1228 | DBTKEY key ; |
1229 | DBT value ; |
1230 | int i ; |
1231 | int One ; |
4633a7c4 |
1232 | DB * Db = db->dbp ; |
a0d0e21e |
1233 | |
1f70e1ea |
1234 | DBT_flags(key) ; |
1235 | DBT_flags(value) ; |
8e07c86e |
1236 | CurrentDB = db ; |
1f70e1ea |
1237 | #ifdef DB_VERSION_MAJOR |
1238 | /* get the first value */ |
1239 | RETVAL = do_SEQ(db, key, value, DB_FIRST) ; |
1240 | RETVAL = 0 ; |
1241 | #else |
a0d0e21e |
1242 | RETVAL = -1 ; |
1f70e1ea |
1243 | #endif |
a0d0e21e |
1244 | for (i = items-1 ; i > 0 ; --i) |
1245 | { |
1246 | value.data = SvPV(ST(i), na) ; |
1247 | value.size = na ; |
1248 | One = 1 ; |
1249 | key.data = &One ; |
1250 | key.size = sizeof(int) ; |
1f70e1ea |
1251 | #ifdef DB_VERSION_MAJOR |
1252 | RETVAL = (db->cursor->c_put)(db->cursor, &key, &value, DB_BEFORE) ; |
1253 | #else |
4633a7c4 |
1254 | RETVAL = (Db->put)(Db, &key, &value, R_IBEFORE) ; |
1f70e1ea |
1255 | #endif |
a0d0e21e |
1256 | if (RETVAL != 0) |
1257 | break; |
1258 | } |
1259 | } |
1260 | OUTPUT: |
1261 | RETVAL |
1262 | |
1263 | I32 |
1264 | pop(db) |
1265 | DB_File db |
1266 | CODE: |
1267 | { |
1268 | DBTKEY key ; |
1269 | DBT value ; |
4633a7c4 |
1270 | DB * Db = db->dbp ; |
a0d0e21e |
1271 | |
1f70e1ea |
1272 | DBT_flags(key) ; |
1273 | DBT_flags(value) ; |
8e07c86e |
1274 | CurrentDB = db ; |
1f70e1ea |
1275 | |
a0d0e21e |
1276 | /* First get the final value */ |
1f70e1ea |
1277 | RETVAL = do_SEQ(db, key, value, R_LAST) ; |
a0d0e21e |
1278 | ST(0) = sv_newmortal(); |
1279 | /* Now delete it */ |
1280 | if (RETVAL == 0) |
1281 | { |
f6b705ef |
1282 | /* the call to del will trash value, so take a copy now */ |
1283 | sv_setpvn(ST(0), value.data, value.size); |
1f70e1ea |
1284 | RETVAL = db_del(db, key, R_CURSOR) ; |
f6b705ef |
1285 | if (RETVAL != 0) |
1286 | sv_setsv(ST(0), &sv_undef); |
a0d0e21e |
1287 | } |
1288 | } |
1289 | |
1290 | I32 |
1291 | shift(db) |
1292 | DB_File db |
1293 | CODE: |
1294 | { |
a0d0e21e |
1295 | DBT value ; |
f6b705ef |
1296 | DBTKEY key ; |
4633a7c4 |
1297 | DB * Db = db->dbp ; |
a0d0e21e |
1298 | |
1f70e1ea |
1299 | DBT_flags(key) ; |
1300 | DBT_flags(value) ; |
8e07c86e |
1301 | CurrentDB = db ; |
a0d0e21e |
1302 | /* get the first value */ |
1f70e1ea |
1303 | RETVAL = do_SEQ(db, key, value, R_FIRST) ; |
a0d0e21e |
1304 | ST(0) = sv_newmortal(); |
1305 | /* Now delete it */ |
1306 | if (RETVAL == 0) |
1307 | { |
f6b705ef |
1308 | /* the call to del will trash value, so take a copy now */ |
1309 | sv_setpvn(ST(0), value.data, value.size); |
1f70e1ea |
1310 | RETVAL = db_del(db, key, R_CURSOR) ; |
f6b705ef |
1311 | if (RETVAL != 0) |
1312 | sv_setsv (ST(0), &sv_undef) ; |
a0d0e21e |
1313 | } |
1314 | } |
1315 | |
1316 | |
1317 | I32 |
1318 | push(db, ...) |
1319 | DB_File db |
1320 | CODE: |
1321 | { |
1322 | DBTKEY key ; |
8e07c86e |
1323 | DBTKEY * keyptr = &key ; |
a0d0e21e |
1324 | DBT value ; |
4633a7c4 |
1325 | DB * Db = db->dbp ; |
a0d0e21e |
1326 | int i ; |
1327 | |
1f70e1ea |
1328 | DBT_flags(key) ; |
1329 | DBT_flags(value) ; |
8e07c86e |
1330 | CurrentDB = db ; |
a0d0e21e |
1331 | /* Set the Cursor to the Last element */ |
1f70e1ea |
1332 | RETVAL = do_SEQ(db, key, value, R_LAST) ; |
8e07c86e |
1333 | if (RETVAL >= 0) |
a0d0e21e |
1334 | { |
8e07c86e |
1335 | if (RETVAL == 1) |
1336 | keyptr = &empty ; |
1f70e1ea |
1337 | #ifdef DB_VERSION_MAJOR |
1338 | for (i = 1 ; i < items ; ++i) |
1339 | { |
1340 | |
1341 | ++ (* (int*)key.data) ; |
1342 | value.data = SvPV(ST(i), na) ; |
1343 | value.size = na ; |
1344 | RETVAL = (Db->put)(Db, NULL, &key, &value, 0) ; |
1345 | if (RETVAL != 0) |
1346 | break; |
1347 | } |
1348 | #else |
8e07c86e |
1349 | for (i = items - 1 ; i > 0 ; --i) |
1350 | { |
1351 | value.data = SvPV(ST(i), na) ; |
1352 | value.size = na ; |
4633a7c4 |
1353 | RETVAL = (Db->put)(Db, keyptr, &value, R_IAFTER) ; |
8e07c86e |
1354 | if (RETVAL != 0) |
1355 | break; |
1356 | } |
1f70e1ea |
1357 | #endif |
a0d0e21e |
1358 | } |
1359 | } |
1360 | OUTPUT: |
1361 | RETVAL |
1362 | |
1363 | |
1364 | I32 |
1365 | length(db) |
1366 | DB_File db |
1367 | CODE: |
8e07c86e |
1368 | CurrentDB = db ; |
1f70e1ea |
1369 | RETVAL = GetArrayLength(db) ; |
a0d0e21e |
1370 | OUTPUT: |
1371 | RETVAL |
1372 | |
1373 | |
1374 | # |
1375 | # Now provide an interface to the rest of the DB functionality |
1376 | # |
1377 | |
1378 | int |
1379 | db_del(db, key, flags=0) |
1380 | DB_File db |
1381 | DBTKEY key |
1382 | u_int flags |
1f70e1ea |
1383 | CODE: |
8e07c86e |
1384 | CurrentDB = db ; |
1f70e1ea |
1385 | RETVAL = db_del(db, key, flags) ; |
1386 | #ifdef DB_VERSION_MAJOR |
1387 | if (RETVAL > 0) |
1388 | RETVAL = -1 ; |
1389 | else if (RETVAL == DB_NOTFOUND) |
1390 | RETVAL = 1 ; |
1391 | #endif |
1392 | OUTPUT: |
1393 | RETVAL |
a0d0e21e |
1394 | |
1395 | |
1396 | int |
1397 | db_get(db, key, value, flags=0) |
1398 | DB_File db |
1399 | DBTKEY key |
a6ed719b |
1400 | DBT value = NO_INIT |
a0d0e21e |
1401 | u_int flags |
1f70e1ea |
1402 | CODE: |
8e07c86e |
1403 | CurrentDB = db ; |
1f70e1ea |
1404 | DBT_flags(value) ; |
1405 | RETVAL = db_get(db, key, value, flags) ; |
1406 | #ifdef DB_VERSION_MAJOR |
1407 | if (RETVAL > 0) |
1408 | RETVAL = -1 ; |
1409 | else if (RETVAL == DB_NOTFOUND) |
1410 | RETVAL = 1 ; |
1411 | #endif |
a0d0e21e |
1412 | OUTPUT: |
1f70e1ea |
1413 | RETVAL |
a0d0e21e |
1414 | value |
1415 | |
1416 | int |
1417 | db_put(db, key, value, flags=0) |
1418 | DB_File db |
1419 | DBTKEY key |
1420 | DBT value |
1421 | u_int flags |
1f70e1ea |
1422 | CODE: |
8e07c86e |
1423 | CurrentDB = db ; |
1f70e1ea |
1424 | RETVAL = db_put(db, key, value, flags) ; |
1425 | #ifdef DB_VERSION_MAJOR |
1426 | if (RETVAL > 0) |
1427 | RETVAL = -1 ; |
1428 | else if (RETVAL == DB_KEYEXIST) |
1429 | RETVAL = 1 ; |
1430 | #endif |
a0d0e21e |
1431 | OUTPUT: |
1f70e1ea |
1432 | RETVAL |
a0d0e21e |
1433 | key if (flags & (R_IAFTER|R_IBEFORE)) OutputKey(ST(1), key); |
1434 | |
1435 | int |
1436 | db_fd(db) |
1437 | DB_File db |
1f70e1ea |
1438 | int status = 0 ; |
1439 | CODE: |
8e07c86e |
1440 | CurrentDB = db ; |
1f70e1ea |
1441 | #ifdef DB_VERSION_MAJOR |
1442 | RETVAL = -1 ; |
1443 | status = (db->in_memory |
1444 | ? -1 |
1445 | : ((db->dbp)->fd)(db->dbp, &RETVAL) ) ; |
1446 | if (status != 0) |
1447 | RETVAL = -1 ; |
1448 | #else |
1449 | RETVAL = (db->in_memory |
1450 | ? -1 |
1451 | : ((db->dbp)->fd)(db->dbp) ) ; |
1452 | #endif |
1453 | OUTPUT: |
1454 | RETVAL |
a0d0e21e |
1455 | |
1456 | int |
1457 | db_sync(db, flags=0) |
1458 | DB_File db |
1459 | u_int flags |
1f70e1ea |
1460 | CODE: |
8e07c86e |
1461 | CurrentDB = db ; |
1f70e1ea |
1462 | RETVAL = db_sync(db, flags) ; |
1463 | #ifdef DB_VERSION_MAJOR |
1464 | if (RETVAL > 0) |
1465 | RETVAL = -1 ; |
1466 | #endif |
1467 | OUTPUT: |
1468 | RETVAL |
a0d0e21e |
1469 | |
1470 | |
1471 | int |
1472 | db_seq(db, key, value, flags) |
1473 | DB_File db |
1474 | DBTKEY key |
a6ed719b |
1475 | DBT value = NO_INIT |
a0d0e21e |
1476 | u_int flags |
1f70e1ea |
1477 | CODE: |
8e07c86e |
1478 | CurrentDB = db ; |
1f70e1ea |
1479 | DBT_flags(value) ; |
1480 | RETVAL = db_seq(db, key, value, flags); |
1481 | #ifdef DB_VERSION_MAJOR |
1482 | if (RETVAL > 0) |
1483 | RETVAL = -1 ; |
1484 | else if (RETVAL == DB_NOTFOUND) |
1485 | RETVAL = 1 ; |
1486 | #endif |
a0d0e21e |
1487 | OUTPUT: |
1f70e1ea |
1488 | RETVAL |
a0d0e21e |
1489 | key |
1490 | value |
610ab055 |
1491 | |