Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* |
2 | ||
3 | DB_File.xs -- Perl 5 interface to Berkeley DB | |
4 | ||
6ca2e664 | 5 | written by Paul Marquess <Paul.Marquess@btinternet.com> |
ca63f0d2 GS |
6 | last modified 6th March 1999 |
7 | version 1.65 | |
a0d0e21e LW |
8 | |
9 | All comments/suggestions/problems are welcome | |
10 | ||
20896112 | 11 | Copyright (c) 1995-9 Paul Marquess. All rights reserved. |
36477c24 | 12 | This program is free software; you can redistribute it and/or |
13 | modify it under the same terms as Perl itself. | |
14 | ||
3b35bae3 | 15 | Changes: |
4633a7c4 LW |
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 | |
f6b705ef | 29 | 1.03 - Added EXISTS |
610ab055 PM |
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 | |
ff68c719 | 34 | 1.06 - Minor namespace cleanup: Localized PrintBtree. |
36477c24 | 35 | 1.07 - Fixed bug with RECNO, where bval wasn't defaulting to "\n". |
36 | 1.08 - No change to DB_File.xs | |
18d2dc8c | 37 | 1.09 - Default mode for dbopen changed to 0666 |
a0b8c8c1 PM |
38 | 1.10 - Fixed fd method so that it still returns -1 for |
39 | in-memory files when db 1.86 is used. | |
778183f3 | 40 | 1.11 - No change to DB_File.xs |
68dc0745 | 41 | 1.12 - No change to DB_File.xs |
1f70e1ea PM |
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 | |
a6ed719b | 48 | undefined value" warning with db_get and db_seq. |
1f70e1ea PM |
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 | |
045291aa PM |
53 | 1.57 - added the #undef op to allow building with Threads support. |
54 | 1.58 - Fixed a problem with the use of sv_setpvn. When the | |
55 | size is specified as 0, it does a strlen on the data. | |
56 | This was ok for DB 1.x, but isn't for DB 2.x. | |
a9fd575d PM |
57 | 1.59 - No change to DB_File.xs |
58 | 1.60 - Some code tidy up | |
9d9477b1 PM |
59 | 1.61 - added flagSet macro for DB 2.5.x |
60 | fixed typo in O_RDONLY test. | |
6ca2e664 PM |
61 | 1.62 - No change to DB_File.xs |
62 | 1.63 - Fix to alllow DB 2.6.x to build. | |
20896112 PM |
63 | 1.64 - Tidied up the 1.x to 2.x flags mapping code. |
64 | Added a patch from Mark Kettenis <kettenis@wins.uva.nl> | |
65 | to fix a flag mapping problem with O_RDONLY on the Hurd | |
ca63f0d2 GS |
66 | 1.65 - Fixed a bug in the PUSH logic. |
67 | Added BOOT check that using 2.3.4 or greater | |
1f70e1ea PM |
68 | |
69 | ||
f6b705ef | 70 | |
a0d0e21e LW |
71 | */ |
72 | ||
73 | #include "EXTERN.h" | |
74 | #include "perl.h" | |
75 | #include "XSUB.h" | |
76 | ||
cceca5ed GS |
77 | #ifndef PERL_VERSION |
78 | #include "patchlevel.h" | |
20896112 PM |
79 | #define PERL_REVISION 5 |
80 | #define PERL_VERSION PATCHLEVEL | |
81 | #define PERL_SUBVERSION SUBVERSION | |
82 | #endif | |
83 | ||
84 | #if PERL_REVISION == 5 && (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION <= 75 )) | |
85 | ||
86 | # define PL_sv_undef sv_undef | |
87 | # define PL_na na | |
88 | ||
cceca5ed GS |
89 | #endif |
90 | ||
52e1cb5e JH |
91 | /* Being the Berkeley DB we prefer the <sys/cdefs.h> (which will be |
92 | * shortly #included by the <db.h>) __attribute__ to the possibly | |
93 | * already defined __attribute__, for example by GNUC or by Perl. */ | |
1f70e1ea | 94 | |
52e1cb5e JH |
95 | #undef __attribute__ |
96 | ||
045291aa PM |
97 | /* If Perl has been compiled with Threads support,the symbol op will |
98 | be defined here. This clashes with a field name in db.h, so get rid of it. | |
99 | */ | |
100 | #ifdef op | |
101 | #undef op | |
102 | #endif | |
a0d0e21e LW |
103 | #include <db.h> |
104 | ||
105 | #include <fcntl.h> | |
106 | ||
1f70e1ea PM |
107 | /* #define TRACE */ |
108 | ||
109 | ||
110 | ||
111 | #ifdef DB_VERSION_MAJOR | |
112 | ||
113 | /* map version 2 features & constants onto their version 1 equivalent */ | |
114 | ||
115 | #ifdef DB_Prefix_t | |
116 | #undef DB_Prefix_t | |
117 | #endif | |
118 | #define DB_Prefix_t size_t | |
119 | ||
120 | #ifdef DB_Hash_t | |
121 | #undef DB_Hash_t | |
122 | #endif | |
123 | #define DB_Hash_t u_int32_t | |
124 | ||
125 | /* DBTYPE stays the same */ | |
126 | /* HASHINFO, RECNOINFO and BTREEINFO map to DB_INFO */ | |
127 | typedef DB_INFO INFO ; | |
128 | ||
129 | /* version 2 has db_recno_t in place of recno_t */ | |
130 | typedef db_recno_t recno_t; | |
131 | ||
132 | ||
133 | #define R_CURSOR DB_SET_RANGE | |
134 | #define R_FIRST DB_FIRST | |
135 | #define R_IAFTER DB_AFTER | |
136 | #define R_IBEFORE DB_BEFORE | |
137 | #define R_LAST DB_LAST | |
138 | #define R_NEXT DB_NEXT | |
139 | #define R_NOOVERWRITE DB_NOOVERWRITE | |
140 | #define R_PREV DB_PREV | |
141 | #define R_SETCURSOR 0 | |
142 | #define R_RECNOSYNC 0 | |
143 | #define R_FIXEDLEN DB_FIXEDLEN | |
144 | #define R_DUP DB_DUP | |
145 | ||
146 | #define db_HA_hash h_hash | |
147 | #define db_HA_ffactor h_ffactor | |
148 | #define db_HA_nelem h_nelem | |
149 | #define db_HA_bsize db_pagesize | |
150 | #define db_HA_cachesize db_cachesize | |
151 | #define db_HA_lorder db_lorder | |
152 | ||
153 | #define db_BT_compare bt_compare | |
154 | #define db_BT_prefix bt_prefix | |
155 | #define db_BT_flags flags | |
156 | #define db_BT_psize db_pagesize | |
157 | #define db_BT_cachesize db_cachesize | |
158 | #define db_BT_lorder db_lorder | |
159 | #define db_BT_maxkeypage | |
160 | #define db_BT_minkeypage | |
161 | ||
162 | ||
163 | #define db_RE_reclen re_len | |
164 | #define db_RE_flags flags | |
165 | #define db_RE_bval re_pad | |
166 | #define db_RE_bfname re_source | |
167 | #define db_RE_psize db_pagesize | |
168 | #define db_RE_cachesize db_cachesize | |
169 | #define db_RE_lorder db_lorder | |
170 | ||
171 | #define TXN NULL, | |
172 | ||
173 | #define do_SEQ(db, key, value, flag) (db->cursor->c_get)(db->cursor, &key, &value, flag) | |
174 | ||
175 | ||
176 | #define DBT_flags(x) x.flags = 0 | |
177 | #define DB_flags(x, v) x |= v | |
178 | ||
9d9477b1 PM |
179 | #if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 5 |
180 | #define flagSet(flags, bitmask) ((flags) & (bitmask)) | |
181 | #else | |
182 | #define flagSet(flags, bitmask) (((flags) & DB_OPFLAGS_MASK) == (bitmask)) | |
183 | #endif | |
184 | ||
1f70e1ea PM |
185 | #else /* db version 1.x */ |
186 | ||
187 | typedef union INFO { | |
188 | HASHINFO hash ; | |
189 | RECNOINFO recno ; | |
190 | BTREEINFO btree ; | |
191 | } INFO ; | |
192 | ||
193 | ||
610ab055 PM |
194 | #ifdef mDB_Prefix_t |
195 | #ifdef DB_Prefix_t | |
196 | #undef DB_Prefix_t | |
197 | #endif | |
198 | #define DB_Prefix_t mDB_Prefix_t | |
199 | #endif | |
200 | ||
201 | #ifdef mDB_Hash_t | |
202 | #ifdef DB_Hash_t | |
203 | #undef DB_Hash_t | |
204 | #endif | |
205 | #define DB_Hash_t mDB_Hash_t | |
206 | #endif | |
207 | ||
1f70e1ea PM |
208 | #define db_HA_hash hash.hash |
209 | #define db_HA_ffactor hash.ffactor | |
210 | #define db_HA_nelem hash.nelem | |
211 | #define db_HA_bsize hash.bsize | |
212 | #define db_HA_cachesize hash.cachesize | |
213 | #define db_HA_lorder hash.lorder | |
214 | ||
215 | #define db_BT_compare btree.compare | |
216 | #define db_BT_prefix btree.prefix | |
217 | #define db_BT_flags btree.flags | |
218 | #define db_BT_psize btree.psize | |
219 | #define db_BT_cachesize btree.cachesize | |
220 | #define db_BT_lorder btree.lorder | |
221 | #define db_BT_maxkeypage btree.maxkeypage | |
222 | #define db_BT_minkeypage btree.minkeypage | |
223 | ||
224 | #define db_RE_reclen recno.reclen | |
225 | #define db_RE_flags recno.flags | |
226 | #define db_RE_bval recno.bval | |
227 | #define db_RE_bfname recno.bfname | |
228 | #define db_RE_psize recno.psize | |
229 | #define db_RE_cachesize recno.cachesize | |
230 | #define db_RE_lorder recno.lorder | |
231 | ||
232 | #define TXN | |
233 | ||
234 | #define do_SEQ(db, key, value, flag) (db->dbp->seq)(db->dbp, &key, &value, flag) | |
235 | #define DBT_flags(x) | |
236 | #define DB_flags(x, v) | |
9d9477b1 | 237 | #define flagSet(flags, bitmask) ((flags) & (bitmask)) |
1f70e1ea PM |
238 | |
239 | #endif /* db version 1 */ | |
240 | ||
241 | ||
242 | ||
243 | #define db_DELETE(db, key, flags) ((db->dbp)->del)(db->dbp, TXN &key, flags) | |
244 | #define db_STORE(db, key, value, flags) ((db->dbp)->put)(db->dbp, TXN &key, &value, flags) | |
245 | #define db_FETCH(db, key, flags) ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) | |
246 | ||
247 | #define db_sync(db, flags) ((db->dbp)->sync)(db->dbp, flags) | |
248 | #define db_get(db, key, value, flags) ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) | |
9d9477b1 | 249 | |
1f70e1ea PM |
250 | #ifdef DB_VERSION_MAJOR |
251 | #define db_DESTROY(db) ((db->dbp)->close)(db->dbp, 0) | |
252 | #define db_close(db) ((db->dbp)->close)(db->dbp, 0) | |
9d9477b1 | 253 | #define db_del(db, key, flags) (flagSet(flags, R_CURSOR) \ |
1f70e1ea PM |
254 | ? ((db->cursor)->c_del)(db->cursor, 0) \ |
255 | : ((db->dbp)->del)(db->dbp, NULL, &key, flags) ) | |
256 | ||
257 | #else | |
258 | ||
259 | #define db_DESTROY(db) ((db->dbp)->close)(db->dbp) | |
260 | #define db_close(db) ((db->dbp)->close)(db->dbp) | |
261 | #define db_del(db, key, flags) ((db->dbp)->del)(db->dbp, &key, flags) | |
262 | #define db_put(db, key, value, flags) ((db->dbp)->put)(db->dbp, &key, &value, flags) | |
263 | ||
264 | #endif | |
265 | ||
9d9477b1 | 266 | |
1f70e1ea | 267 | #define db_seq(db, key, value, flags) do_SEQ(db, key, value, flags) |
610ab055 | 268 | |
8e07c86e AD |
269 | typedef struct { |
270 | DBTYPE type ; | |
271 | DB * dbp ; | |
272 | SV * compare ; | |
273 | SV * prefix ; | |
274 | SV * hash ; | |
a0b8c8c1 | 275 | int in_memory ; |
1f70e1ea PM |
276 | INFO info ; |
277 | #ifdef DB_VERSION_MAJOR | |
278 | DBC * cursor ; | |
279 | #endif | |
8e07c86e AD |
280 | } DB_File_type; |
281 | ||
282 | typedef DB_File_type * DB_File ; | |
a0d0e21e LW |
283 | typedef DBT DBTKEY ; |
284 | ||
045291aa | 285 | #define my_sv_setpvn(sv, d, s) sv_setpvn(sv, (s ? d : (void*)""), s) |
a0d0e21e | 286 | |
88108326 | 287 | #define OutputValue(arg, name) \ |
288 | { if (RETVAL == 0) { \ | |
045291aa | 289 | my_sv_setpvn(arg, name.data, name.size) ; \ |
88108326 | 290 | } \ |
291 | } | |
a0d0e21e LW |
292 | |
293 | #define OutputKey(arg, name) \ | |
1f70e1ea | 294 | { if (RETVAL == 0) \ |
a0d0e21e | 295 | { \ |
88108326 | 296 | if (db->type != DB_RECNO) { \ |
045291aa | 297 | my_sv_setpvn(arg, name.data, name.size); \ |
88108326 | 298 | } \ |
a0d0e21e LW |
299 | else \ |
300 | sv_setiv(arg, (I32)*(I32*)name.data - 1); \ | |
301 | } \ | |
302 | } | |
303 | ||
045291aa | 304 | |
a0d0e21e | 305 | /* Internal Global Data */ |
8e07c86e | 306 | static recno_t Value ; |
8e07c86e | 307 | static recno_t zero = 0 ; |
1f70e1ea PM |
308 | static DB_File CurrentDB ; |
309 | static DBTKEY empty ; | |
310 | ||
311 | #ifdef DB_VERSION_MAJOR | |
312 | ||
313 | static int | |
314 | db_put(db, key, value, flags) | |
315 | DB_File db ; | |
316 | DBTKEY key ; | |
317 | DBT value ; | |
318 | u_int flags ; | |
319 | ||
320 | { | |
321 | int status ; | |
322 | ||
9d9477b1 | 323 | if (flagSet(flags, R_CURSOR)) { |
1f70e1ea PM |
324 | status = ((db->cursor)->c_del)(db->cursor, 0); |
325 | if (status != 0) | |
326 | return status ; | |
327 | ||
9d9477b1 | 328 | #if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 5 |
1f70e1ea | 329 | flags &= ~R_CURSOR ; |
9d9477b1 PM |
330 | #else |
331 | flags &= ~DB_OPFLAGS_MASK ; | |
332 | #endif | |
333 | ||
1f70e1ea PM |
334 | } |
335 | ||
336 | return ((db->dbp)->put)(db->dbp, NULL, &key, &value, flags) ; | |
337 | ||
338 | } | |
339 | ||
340 | #endif /* DB_VERSION_MAJOR */ | |
341 | ||
342 | static void | |
343 | GetVersionInfo() | |
344 | { | |
345 | SV * ver_sv = perl_get_sv("DB_File::db_version", TRUE) ; | |
346 | #ifdef DB_VERSION_MAJOR | |
347 | int Major, Minor, Patch ; | |
348 | ||
349 | (void)db_version(&Major, &Minor, &Patch) ; | |
350 | ||
ca63f0d2 GS |
351 | /* check that libdb is recent enough -- we need 2.3.4 or greater */ |
352 | if (Major == 2 && (Minor < 3 || (Minor == 3 && Patch < 4))) | |
353 | croak("DB_File needs Berkeley DB 2.3.4 or greater, you have %d.%d.%d\n", | |
1f70e1ea PM |
354 | Major, Minor, Patch) ; |
355 | ||
cceca5ed | 356 | #if PERL_VERSION > 3 |
1f70e1ea PM |
357 | sv_setpvf(ver_sv, "%d.%d", Major, Minor) ; |
358 | #else | |
359 | { | |
360 | char buffer[40] ; | |
361 | sprintf(buffer, "%d.%d", Major, Minor) ; | |
362 | sv_setpv(ver_sv, buffer) ; | |
363 | } | |
364 | #endif | |
365 | ||
366 | #else | |
367 | sv_setiv(ver_sv, 1) ; | |
368 | #endif | |
369 | ||
370 | } | |
a0d0e21e LW |
371 | |
372 | ||
373 | static int | |
374 | btree_compare(key1, key2) | |
375 | const DBT * key1 ; | |
376 | const DBT * key2 ; | |
377 | { | |
378 | dSP ; | |
379 | void * data1, * data2 ; | |
380 | int retval ; | |
381 | int count ; | |
382 | ||
383 | data1 = key1->data ; | |
384 | data2 = key2->data ; | |
385 | ||
386 | /* As newSVpv will assume that the data pointer is a null terminated C | |
387 | string if the size parameter is 0, make sure that data points to an | |
388 | empty string if the length is 0 | |
389 | */ | |
390 | if (key1->size == 0) | |
391 | data1 = "" ; | |
392 | if (key2->size == 0) | |
393 | data2 = "" ; | |
394 | ||
395 | ENTER ; | |
396 | SAVETMPS; | |
397 | ||
924508f0 GS |
398 | PUSHMARK(SP) ; |
399 | EXTEND(SP,2) ; | |
a0d0e21e LW |
400 | PUSHs(sv_2mortal(newSVpv(data1,key1->size))); |
401 | PUSHs(sv_2mortal(newSVpv(data2,key2->size))); | |
402 | PUTBACK ; | |
403 | ||
8e07c86e | 404 | count = perl_call_sv(CurrentDB->compare, G_SCALAR); |
a0d0e21e LW |
405 | |
406 | SPAGAIN ; | |
407 | ||
408 | if (count != 1) | |
ff0cee69 | 409 | croak ("DB_File btree_compare: expected 1 return value from compare sub, got %d\n", count) ; |
a0d0e21e LW |
410 | |
411 | retval = POPi ; | |
412 | ||
413 | PUTBACK ; | |
414 | FREETMPS ; | |
415 | LEAVE ; | |
416 | return (retval) ; | |
417 | ||
418 | } | |
419 | ||
ecfc5424 | 420 | static DB_Prefix_t |
a0d0e21e LW |
421 | btree_prefix(key1, key2) |
422 | const DBT * key1 ; | |
423 | const DBT * key2 ; | |
424 | { | |
425 | dSP ; | |
426 | void * data1, * data2 ; | |
427 | int retval ; | |
428 | int count ; | |
429 | ||
430 | data1 = key1->data ; | |
431 | data2 = key2->data ; | |
432 | ||
433 | /* As newSVpv will assume that the data pointer is a null terminated C | |
434 | string if the size parameter is 0, make sure that data points to an | |
435 | empty string if the length is 0 | |
436 | */ | |
437 | if (key1->size == 0) | |
438 | data1 = "" ; | |
439 | if (key2->size == 0) | |
440 | data2 = "" ; | |
441 | ||
442 | ENTER ; | |
443 | SAVETMPS; | |
444 | ||
924508f0 GS |
445 | PUSHMARK(SP) ; |
446 | EXTEND(SP,2) ; | |
a0d0e21e LW |
447 | PUSHs(sv_2mortal(newSVpv(data1,key1->size))); |
448 | PUSHs(sv_2mortal(newSVpv(data2,key2->size))); | |
449 | PUTBACK ; | |
450 | ||
8e07c86e | 451 | count = perl_call_sv(CurrentDB->prefix, G_SCALAR); |
a0d0e21e LW |
452 | |
453 | SPAGAIN ; | |
454 | ||
455 | if (count != 1) | |
ff0cee69 | 456 | croak ("DB_File btree_prefix: expected 1 return value from prefix sub, got %d\n", count) ; |
a0d0e21e LW |
457 | |
458 | retval = POPi ; | |
459 | ||
460 | PUTBACK ; | |
461 | FREETMPS ; | |
462 | LEAVE ; | |
463 | ||
464 | return (retval) ; | |
465 | } | |
466 | ||
ecfc5424 | 467 | static DB_Hash_t |
a0d0e21e LW |
468 | hash_cb(data, size) |
469 | const void * data ; | |
470 | size_t size ; | |
471 | { | |
472 | dSP ; | |
473 | int retval ; | |
474 | int count ; | |
475 | ||
476 | if (size == 0) | |
477 | data = "" ; | |
478 | ||
610ab055 PM |
479 | /* DGH - Next two lines added to fix corrupted stack problem */ |
480 | ENTER ; | |
481 | SAVETMPS; | |
482 | ||
924508f0 | 483 | PUSHMARK(SP) ; |
610ab055 | 484 | |
a0d0e21e LW |
485 | XPUSHs(sv_2mortal(newSVpv((char*)data,size))); |
486 | PUTBACK ; | |
487 | ||
8e07c86e | 488 | count = perl_call_sv(CurrentDB->hash, G_SCALAR); |
a0d0e21e LW |
489 | |
490 | SPAGAIN ; | |
491 | ||
492 | if (count != 1) | |
ff0cee69 | 493 | croak ("DB_File hash_cb: expected 1 return value from hash sub, got %d\n", count) ; |
a0d0e21e LW |
494 | |
495 | retval = POPi ; | |
496 | ||
497 | PUTBACK ; | |
498 | FREETMPS ; | |
499 | LEAVE ; | |
500 | ||
501 | return (retval) ; | |
502 | } | |
503 | ||
504 | ||
505 | #ifdef TRACE | |
506 | ||
507 | static void | |
508 | PrintHash(hash) | |
1f70e1ea | 509 | INFO * hash ; |
a0d0e21e LW |
510 | { |
511 | printf ("HASH Info\n") ; | |
1f70e1ea PM |
512 | printf (" hash = %s\n", |
513 | (hash->db_HA_hash != NULL ? "redefined" : "default")) ; | |
514 | printf (" bsize = %d\n", hash->db_HA_bsize) ; | |
515 | printf (" ffactor = %d\n", hash->db_HA_ffactor) ; | |
516 | printf (" nelem = %d\n", hash->db_HA_nelem) ; | |
517 | printf (" cachesize = %d\n", hash->db_HA_cachesize) ; | |
518 | printf (" lorder = %d\n", hash->db_HA_lorder) ; | |
a0d0e21e LW |
519 | |
520 | } | |
521 | ||
522 | static void | |
523 | PrintRecno(recno) | |
1f70e1ea | 524 | INFO * recno ; |
a0d0e21e LW |
525 | { |
526 | printf ("RECNO Info\n") ; | |
1f70e1ea PM |
527 | printf (" flags = %d\n", recno->db_RE_flags) ; |
528 | printf (" cachesize = %d\n", recno->db_RE_cachesize) ; | |
529 | printf (" psize = %d\n", recno->db_RE_psize) ; | |
530 | printf (" lorder = %d\n", recno->db_RE_lorder) ; | |
531 | printf (" reclen = %ul\n", (unsigned long)recno->db_RE_reclen) ; | |
532 | printf (" bval = %d 0x%x\n", recno->db_RE_bval, recno->db_RE_bval) ; | |
533 | printf (" bfname = %d [%s]\n", recno->db_RE_bfname, recno->db_RE_bfname) ; | |
a0d0e21e LW |
534 | } |
535 | ||
ff68c719 | 536 | static void |
a0d0e21e | 537 | PrintBtree(btree) |
1f70e1ea | 538 | INFO * btree ; |
a0d0e21e LW |
539 | { |
540 | printf ("BTREE Info\n") ; | |
1f70e1ea PM |
541 | printf (" compare = %s\n", |
542 | (btree->db_BT_compare ? "redefined" : "default")) ; | |
543 | printf (" prefix = %s\n", | |
544 | (btree->db_BT_prefix ? "redefined" : "default")) ; | |
545 | printf (" flags = %d\n", btree->db_BT_flags) ; | |
546 | printf (" cachesize = %d\n", btree->db_BT_cachesize) ; | |
547 | printf (" psize = %d\n", btree->db_BT_psize) ; | |
548 | #ifndef DB_VERSION_MAJOR | |
549 | printf (" maxkeypage = %d\n", btree->db_BT_maxkeypage) ; | |
550 | printf (" minkeypage = %d\n", btree->db_BT_minkeypage) ; | |
551 | #endif | |
552 | printf (" lorder = %d\n", btree->db_BT_lorder) ; | |
a0d0e21e LW |
553 | } |
554 | ||
555 | #else | |
556 | ||
557 | #define PrintRecno(recno) | |
558 | #define PrintHash(hash) | |
559 | #define PrintBtree(btree) | |
560 | ||
561 | #endif /* TRACE */ | |
562 | ||
563 | ||
564 | static I32 | |
565 | GetArrayLength(db) | |
1f70e1ea | 566 | DB_File db ; |
a0d0e21e LW |
567 | { |
568 | DBT key ; | |
569 | DBT value ; | |
570 | int RETVAL ; | |
571 | ||
1f70e1ea PM |
572 | DBT_flags(key) ; |
573 | DBT_flags(value) ; | |
574 | RETVAL = do_SEQ(db, key, value, R_LAST) ; | |
a0d0e21e LW |
575 | if (RETVAL == 0) |
576 | RETVAL = *(I32 *)key.data ; | |
1f70e1ea | 577 | else /* No key means empty file */ |
a0d0e21e LW |
578 | RETVAL = 0 ; |
579 | ||
a0b8c8c1 | 580 | return ((I32)RETVAL) ; |
a0d0e21e LW |
581 | } |
582 | ||
88108326 | 583 | static recno_t |
584 | GetRecnoKey(db, value) | |
585 | DB_File db ; | |
586 | I32 value ; | |
587 | { | |
588 | if (value < 0) { | |
589 | /* Get the length of the array */ | |
1f70e1ea | 590 | I32 length = GetArrayLength(db) ; |
88108326 | 591 | |
592 | /* check for attempt to write before start of array */ | |
593 | if (length + value + 1 <= 0) | |
ff0cee69 | 594 | croak("Modification of non-creatable array value attempted, subscript %ld", (long)value) ; |
88108326 | 595 | |
596 | value = length + value + 1 ; | |
597 | } | |
598 | else | |
599 | ++ value ; | |
600 | ||
601 | return value ; | |
a0d0e21e LW |
602 | } |
603 | ||
604 | static DB_File | |
05475680 PM |
605 | ParseOpenInfo(isHASH, name, flags, mode, sv) |
606 | int isHASH ; | |
a0d0e21e LW |
607 | char * name ; |
608 | int flags ; | |
609 | int mode ; | |
610 | SV * sv ; | |
a0d0e21e LW |
611 | { |
612 | SV ** svp; | |
613 | HV * action ; | |
045291aa | 614 | DB_File RETVAL = (DB_File)safemalloc(sizeof(DB_File_type)) ; |
a0d0e21e | 615 | void * openinfo = NULL ; |
045291aa | 616 | INFO * info = &RETVAL->info ; |
2d8e6c8d | 617 | STRLEN n_a; |
1f70e1ea PM |
618 | |
619 | /* printf("In ParseOpenInfo name=[%s] flags=[%d] mode = [%d]\n", name, flags, mode) ; */ | |
045291aa | 620 | Zero(RETVAL, 1, DB_File_type) ; |
a0d0e21e | 621 | |
88108326 | 622 | /* Default to HASH */ |
8e07c86e AD |
623 | RETVAL->hash = RETVAL->compare = RETVAL->prefix = NULL ; |
624 | RETVAL->type = DB_HASH ; | |
a0d0e21e | 625 | |
610ab055 PM |
626 | /* DGH - Next line added to avoid SEGV on existing hash DB */ |
627 | CurrentDB = RETVAL; | |
628 | ||
a0b8c8c1 PM |
629 | /* fd for 1.86 hash in memory files doesn't return -1 like 1.85 */ |
630 | RETVAL->in_memory = (name == NULL) ; | |
631 | ||
a0d0e21e LW |
632 | if (sv) |
633 | { | |
634 | if (! SvROK(sv) ) | |
635 | croak ("type parameter is not a reference") ; | |
636 | ||
36477c24 | 637 | svp = hv_fetch( (HV*)SvRV(sv), "GOT", 3, FALSE) ; |
638 | if (svp && SvOK(*svp)) | |
639 | action = (HV*) SvRV(*svp) ; | |
640 | else | |
641 | croak("internal error") ; | |
610ab055 | 642 | |
a0d0e21e LW |
643 | if (sv_isa(sv, "DB_File::HASHINFO")) |
644 | { | |
05475680 PM |
645 | |
646 | if (!isHASH) | |
647 | croak("DB_File can only tie an associative array to a DB_HASH database") ; | |
648 | ||
8e07c86e | 649 | RETVAL->type = DB_HASH ; |
610ab055 | 650 | openinfo = (void*)info ; |
a0d0e21e LW |
651 | |
652 | svp = hv_fetch(action, "hash", 4, FALSE); | |
653 | ||
654 | if (svp && SvOK(*svp)) | |
655 | { | |
1f70e1ea | 656 | info->db_HA_hash = hash_cb ; |
8e07c86e | 657 | RETVAL->hash = newSVsv(*svp) ; |
a0d0e21e LW |
658 | } |
659 | else | |
1f70e1ea | 660 | info->db_HA_hash = NULL ; |
a0d0e21e | 661 | |
a0d0e21e | 662 | svp = hv_fetch(action, "ffactor", 7, FALSE); |
1f70e1ea | 663 | info->db_HA_ffactor = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
664 | |
665 | svp = hv_fetch(action, "nelem", 5, FALSE); | |
1f70e1ea | 666 | info->db_HA_nelem = svp ? SvIV(*svp) : 0; |
a0d0e21e | 667 | |
1f70e1ea PM |
668 | svp = hv_fetch(action, "bsize", 5, FALSE); |
669 | info->db_HA_bsize = svp ? SvIV(*svp) : 0; | |
670 | ||
a0d0e21e | 671 | svp = hv_fetch(action, "cachesize", 9, FALSE); |
1f70e1ea | 672 | info->db_HA_cachesize = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
673 | |
674 | svp = hv_fetch(action, "lorder", 6, FALSE); | |
1f70e1ea | 675 | info->db_HA_lorder = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
676 | |
677 | PrintHash(info) ; | |
678 | } | |
679 | else if (sv_isa(sv, "DB_File::BTREEINFO")) | |
680 | { | |
05475680 PM |
681 | if (!isHASH) |
682 | croak("DB_File can only tie an associative array to a DB_BTREE database"); | |
683 | ||
8e07c86e | 684 | RETVAL->type = DB_BTREE ; |
610ab055 | 685 | openinfo = (void*)info ; |
a0d0e21e LW |
686 | |
687 | svp = hv_fetch(action, "compare", 7, FALSE); | |
688 | if (svp && SvOK(*svp)) | |
689 | { | |
1f70e1ea | 690 | info->db_BT_compare = btree_compare ; |
8e07c86e | 691 | RETVAL->compare = newSVsv(*svp) ; |
a0d0e21e LW |
692 | } |
693 | else | |
1f70e1ea | 694 | info->db_BT_compare = NULL ; |
a0d0e21e LW |
695 | |
696 | svp = hv_fetch(action, "prefix", 6, FALSE); | |
697 | if (svp && SvOK(*svp)) | |
698 | { | |
1f70e1ea | 699 | info->db_BT_prefix = btree_prefix ; |
8e07c86e | 700 | RETVAL->prefix = newSVsv(*svp) ; |
a0d0e21e LW |
701 | } |
702 | else | |
1f70e1ea | 703 | info->db_BT_prefix = NULL ; |
a0d0e21e LW |
704 | |
705 | svp = hv_fetch(action, "flags", 5, FALSE); | |
1f70e1ea | 706 | info->db_BT_flags = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
707 | |
708 | svp = hv_fetch(action, "cachesize", 9, FALSE); | |
1f70e1ea | 709 | info->db_BT_cachesize = svp ? SvIV(*svp) : 0; |
a0d0e21e | 710 | |
1f70e1ea | 711 | #ifndef DB_VERSION_MAJOR |
a0d0e21e | 712 | svp = hv_fetch(action, "minkeypage", 10, FALSE); |
610ab055 | 713 | info->btree.minkeypage = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
714 | |
715 | svp = hv_fetch(action, "maxkeypage", 10, FALSE); | |
610ab055 | 716 | info->btree.maxkeypage = svp ? SvIV(*svp) : 0; |
1f70e1ea | 717 | #endif |
a0d0e21e LW |
718 | |
719 | svp = hv_fetch(action, "psize", 5, FALSE); | |
1f70e1ea | 720 | info->db_BT_psize = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
721 | |
722 | svp = hv_fetch(action, "lorder", 6, FALSE); | |
1f70e1ea | 723 | info->db_BT_lorder = svp ? SvIV(*svp) : 0; |
a0d0e21e LW |
724 | |
725 | PrintBtree(info) ; | |
726 | ||
727 | } | |
728 | else if (sv_isa(sv, "DB_File::RECNOINFO")) | |
729 | { | |
05475680 PM |
730 | if (isHASH) |
731 | croak("DB_File can only tie an array to a DB_RECNO database"); | |
732 | ||
8e07c86e | 733 | RETVAL->type = DB_RECNO ; |
610ab055 | 734 | openinfo = (void *)info ; |
a0d0e21e | 735 | |
1f70e1ea PM |
736 | info->db_RE_flags = 0 ; |
737 | ||
a0d0e21e | 738 | svp = hv_fetch(action, "flags", 5, FALSE); |
1f70e1ea PM |
739 | info->db_RE_flags = (u_long) (svp ? SvIV(*svp) : 0); |
740 | ||
741 | svp = hv_fetch(action, "reclen", 6, FALSE); | |
742 | info->db_RE_reclen = (size_t) (svp ? SvIV(*svp) : 0); | |
a0d0e21e LW |
743 | |
744 | svp = hv_fetch(action, "cachesize", 9, FALSE); | |
1f70e1ea | 745 | info->db_RE_cachesize = (u_int) (svp ? SvIV(*svp) : 0); |
a0d0e21e LW |
746 | |
747 | svp = hv_fetch(action, "psize", 5, FALSE); | |
1f70e1ea | 748 | info->db_RE_psize = (u_int) (svp ? SvIV(*svp) : 0); |
a0d0e21e LW |
749 | |
750 | svp = hv_fetch(action, "lorder", 6, FALSE); | |
1f70e1ea PM |
751 | info->db_RE_lorder = (int) (svp ? SvIV(*svp) : 0); |
752 | ||
753 | #ifdef DB_VERSION_MAJOR | |
754 | info->re_source = name ; | |
755 | name = NULL ; | |
756 | #endif | |
757 | svp = hv_fetch(action, "bfname", 6, FALSE); | |
758 | if (svp && SvOK(*svp)) { | |
2d8e6c8d | 759 | char * ptr = SvPV(*svp,n_a) ; |
1f70e1ea | 760 | #ifdef DB_VERSION_MAJOR |
2d8e6c8d | 761 | name = (char*) n_a ? ptr : NULL ; |
1f70e1ea | 762 | #else |
2d8e6c8d | 763 | info->db_RE_bfname = (char*) (n_a ? ptr : NULL) ; |
1f70e1ea PM |
764 | #endif |
765 | } | |
766 | else | |
767 | #ifdef DB_VERSION_MAJOR | |
768 | name = NULL ; | |
769 | #else | |
770 | info->db_RE_bfname = NULL ; | |
771 | #endif | |
a0d0e21e LW |
772 | |
773 | svp = hv_fetch(action, "bval", 4, FALSE); | |
1f70e1ea | 774 | #ifdef DB_VERSION_MAJOR |
a0d0e21e LW |
775 | if (svp && SvOK(*svp)) |
776 | { | |
1f70e1ea | 777 | int value ; |
a0d0e21e | 778 | if (SvPOK(*svp)) |
2d8e6c8d | 779 | value = (int)*SvPV(*svp, n_a) ; |
a0d0e21e | 780 | else |
1f70e1ea PM |
781 | value = SvIV(*svp) ; |
782 | ||
783 | if (info->flags & DB_FIXEDLEN) { | |
784 | info->re_pad = value ; | |
785 | info->flags |= DB_PAD ; | |
786 | } | |
787 | else { | |
788 | info->re_delim = value ; | |
789 | info->flags |= DB_DELIMITER ; | |
790 | } | |
791 | ||
792 | } | |
793 | #else | |
794 | if (svp && SvOK(*svp)) | |
795 | { | |
796 | if (SvPOK(*svp)) | |
2d8e6c8d | 797 | info->db_RE_bval = (u_char)*SvPV(*svp, n_a) ; |
1f70e1ea PM |
798 | else |
799 | info->db_RE_bval = (u_char)(unsigned long) SvIV(*svp) ; | |
800 | DB_flags(info->flags, DB_DELIMITER) ; | |
801 | ||
a0d0e21e LW |
802 | } |
803 | else | |
804 | { | |
1f70e1ea PM |
805 | if (info->db_RE_flags & R_FIXEDLEN) |
806 | info->db_RE_bval = (u_char) ' ' ; | |
a0d0e21e | 807 | else |
1f70e1ea PM |
808 | info->db_RE_bval = (u_char) '\n' ; |
809 | DB_flags(info->flags, DB_DELIMITER) ; | |
a0d0e21e | 810 | } |
1f70e1ea | 811 | #endif |
a0d0e21e | 812 | |
1f70e1ea PM |
813 | #ifdef DB_RENUMBER |
814 | info->flags |= DB_RENUMBER ; | |
815 | #endif | |
816 | ||
a0d0e21e LW |
817 | PrintRecno(info) ; |
818 | } | |
819 | else | |
820 | croak("type is not of type DB_File::HASHINFO, DB_File::BTREEINFO or DB_File::RECNOINFO"); | |
821 | } | |
822 | ||
823 | ||
88108326 | 824 | /* OS2 Specific Code */ |
825 | #ifdef OS2 | |
826 | #ifdef __EMX__ | |
827 | flags |= O_BINARY; | |
828 | #endif /* __EMX__ */ | |
829 | #endif /* OS2 */ | |
a0d0e21e | 830 | |
1f70e1ea PM |
831 | #ifdef DB_VERSION_MAJOR |
832 | ||
833 | { | |
834 | int Flags = 0 ; | |
835 | int status ; | |
836 | ||
837 | /* Map 1.x flags to 2.x flags */ | |
838 | if ((flags & O_CREAT) == O_CREAT) | |
839 | Flags |= DB_CREATE ; | |
840 | ||
1f70e1ea PM |
841 | #if O_RDONLY == 0 |
842 | if (flags == O_RDONLY) | |
843 | #else | |
20896112 | 844 | if ((flags & O_RDONLY) == O_RDONLY && (flags & O_RDWR) != O_RDWR) |
1f70e1ea PM |
845 | #endif |
846 | Flags |= DB_RDONLY ; | |
847 | ||
20896112 | 848 | #ifdef O_TRUNC |
1f70e1ea PM |
849 | if ((flags & O_TRUNC) == O_TRUNC) |
850 | Flags |= DB_TRUNCATE ; | |
851 | #endif | |
852 | ||
853 | status = db_open(name, RETVAL->type, Flags, mode, NULL, openinfo, &RETVAL->dbp) ; | |
854 | if (status == 0) | |
6ca2e664 | 855 | #if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 6 |
1f70e1ea | 856 | status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor) ; |
6ca2e664 PM |
857 | #else |
858 | status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor, | |
859 | 0) ; | |
860 | #endif | |
1f70e1ea PM |
861 | |
862 | if (status) | |
863 | RETVAL->dbp = NULL ; | |
864 | ||
865 | } | |
866 | #else | |
88108326 | 867 | RETVAL->dbp = dbopen(name, flags, mode, RETVAL->type, openinfo) ; |
1f70e1ea | 868 | #endif |
a0d0e21e LW |
869 | |
870 | return (RETVAL) ; | |
871 | } | |
872 | ||
873 | ||
874 | static int | |
875 | not_here(s) | |
876 | char *s; | |
877 | { | |
878 | croak("DB_File::%s not implemented on this architecture", s); | |
879 | return -1; | |
880 | } | |
881 | ||
882 | static double | |
883 | constant(name, arg) | |
884 | char *name; | |
885 | int arg; | |
886 | { | |
887 | errno = 0; | |
888 | switch (*name) { | |
889 | case 'A': | |
890 | break; | |
891 | case 'B': | |
892 | if (strEQ(name, "BTREEMAGIC")) | |
893 | #ifdef BTREEMAGIC | |
894 | return BTREEMAGIC; | |
895 | #else | |
896 | goto not_there; | |
897 | #endif | |
898 | if (strEQ(name, "BTREEVERSION")) | |
899 | #ifdef BTREEVERSION | |
900 | return BTREEVERSION; | |
901 | #else | |
902 | goto not_there; | |
903 | #endif | |
904 | break; | |
905 | case 'C': | |
906 | break; | |
907 | case 'D': | |
908 | if (strEQ(name, "DB_LOCK")) | |
909 | #ifdef DB_LOCK | |
910 | return DB_LOCK; | |
911 | #else | |
912 | goto not_there; | |
913 | #endif | |
914 | if (strEQ(name, "DB_SHMEM")) | |
915 | #ifdef DB_SHMEM | |
916 | return DB_SHMEM; | |
917 | #else | |
918 | goto not_there; | |
919 | #endif | |
920 | if (strEQ(name, "DB_TXN")) | |
921 | #ifdef DB_TXN | |
922 | return (U32)DB_TXN; | |
923 | #else | |
924 | goto not_there; | |
925 | #endif | |
926 | break; | |
927 | case 'E': | |
928 | break; | |
929 | case 'F': | |
930 | break; | |
931 | case 'G': | |
932 | break; | |
933 | case 'H': | |
934 | if (strEQ(name, "HASHMAGIC")) | |
935 | #ifdef HASHMAGIC | |
936 | return HASHMAGIC; | |
937 | #else | |
938 | goto not_there; | |
939 | #endif | |
940 | if (strEQ(name, "HASHVERSION")) | |
941 | #ifdef HASHVERSION | |
942 | return HASHVERSION; | |
943 | #else | |
944 | goto not_there; | |
945 | #endif | |
946 | break; | |
947 | case 'I': | |
948 | break; | |
949 | case 'J': | |
950 | break; | |
951 | case 'K': | |
952 | break; | |
953 | case 'L': | |
954 | break; | |
955 | case 'M': | |
956 | if (strEQ(name, "MAX_PAGE_NUMBER")) | |
957 | #ifdef MAX_PAGE_NUMBER | |
958 | return (U32)MAX_PAGE_NUMBER; | |
959 | #else | |
960 | goto not_there; | |
961 | #endif | |
962 | if (strEQ(name, "MAX_PAGE_OFFSET")) | |
963 | #ifdef MAX_PAGE_OFFSET | |
964 | return MAX_PAGE_OFFSET; | |
965 | #else | |
966 | goto not_there; | |
967 | #endif | |
968 | if (strEQ(name, "MAX_REC_NUMBER")) | |
969 | #ifdef MAX_REC_NUMBER | |
970 | return (U32)MAX_REC_NUMBER; | |
971 | #else | |
972 | goto not_there; | |
973 | #endif | |
974 | break; | |
975 | case 'N': | |
976 | break; | |
977 | case 'O': | |
978 | break; | |
979 | case 'P': | |
980 | break; | |
981 | case 'Q': | |
982 | break; | |
983 | case 'R': | |
984 | if (strEQ(name, "RET_ERROR")) | |
985 | #ifdef RET_ERROR | |
986 | return RET_ERROR; | |
987 | #else | |
988 | goto not_there; | |
989 | #endif | |
990 | if (strEQ(name, "RET_SPECIAL")) | |
991 | #ifdef RET_SPECIAL | |
992 | return RET_SPECIAL; | |
993 | #else | |
994 | goto not_there; | |
995 | #endif | |
996 | if (strEQ(name, "RET_SUCCESS")) | |
997 | #ifdef RET_SUCCESS | |
998 | return RET_SUCCESS; | |
999 | #else | |
1000 | goto not_there; | |
1001 | #endif | |
1002 | if (strEQ(name, "R_CURSOR")) | |
1003 | #ifdef R_CURSOR | |
1004 | return R_CURSOR; | |
1005 | #else | |
1006 | goto not_there; | |
1007 | #endif | |
1008 | if (strEQ(name, "R_DUP")) | |
1009 | #ifdef R_DUP | |
1010 | return R_DUP; | |
1011 | #else | |
1012 | goto not_there; | |
1013 | #endif | |
1014 | if (strEQ(name, "R_FIRST")) | |
1015 | #ifdef R_FIRST | |
1016 | return R_FIRST; | |
1017 | #else | |
1018 | goto not_there; | |
1019 | #endif | |
1020 | if (strEQ(name, "R_FIXEDLEN")) | |
1021 | #ifdef R_FIXEDLEN | |
1022 | return R_FIXEDLEN; | |
1023 | #else | |
1024 | goto not_there; | |
1025 | #endif | |
1026 | if (strEQ(name, "R_IAFTER")) | |
1027 | #ifdef R_IAFTER | |
1028 | return R_IAFTER; | |
1029 | #else | |
1030 | goto not_there; | |
1031 | #endif | |
1032 | if (strEQ(name, "R_IBEFORE")) | |
1033 | #ifdef R_IBEFORE | |
1034 | return R_IBEFORE; | |
1035 | #else | |
1036 | goto not_there; | |
1037 | #endif | |
1038 | if (strEQ(name, "R_LAST")) | |
1039 | #ifdef R_LAST | |
1040 | return R_LAST; | |
1041 | #else | |
1042 | goto not_there; | |
1043 | #endif | |
1044 | if (strEQ(name, "R_NEXT")) | |
1045 | #ifdef R_NEXT | |
1046 | return R_NEXT; | |
1047 | #else | |
1048 | goto not_there; | |
1049 | #endif | |
1050 | if (strEQ(name, "R_NOKEY")) | |
1051 | #ifdef R_NOKEY | |
1052 | return R_NOKEY; | |
1053 | #else | |
1054 | goto not_there; | |
1055 | #endif | |
1056 | if (strEQ(name, "R_NOOVERWRITE")) | |
1057 | #ifdef R_NOOVERWRITE | |
1058 | return R_NOOVERWRITE; | |
1059 | #else | |
1060 | goto not_there; | |
1061 | #endif | |
1062 | if (strEQ(name, "R_PREV")) | |
1063 | #ifdef R_PREV | |
1064 | return R_PREV; | |
1065 | #else | |
1066 | goto not_there; | |
1067 | #endif | |
1068 | if (strEQ(name, "R_RECNOSYNC")) | |
1069 | #ifdef R_RECNOSYNC | |
1070 | return R_RECNOSYNC; | |
1071 | #else | |
1072 | goto not_there; | |
1073 | #endif | |
1074 | if (strEQ(name, "R_SETCURSOR")) | |
1075 | #ifdef R_SETCURSOR | |
1076 | return R_SETCURSOR; | |
1077 | #else | |
1078 | goto not_there; | |
1079 | #endif | |
1080 | if (strEQ(name, "R_SNAPSHOT")) | |
1081 | #ifdef R_SNAPSHOT | |
1082 | return R_SNAPSHOT; | |
1083 | #else | |
1084 | goto not_there; | |
1085 | #endif | |
1086 | break; | |
1087 | case 'S': | |
1088 | break; | |
1089 | case 'T': | |
1090 | break; | |
1091 | case 'U': | |
1092 | break; | |
1093 | case 'V': | |
1094 | break; | |
1095 | case 'W': | |
1096 | break; | |
1097 | case 'X': | |
1098 | break; | |
1099 | case 'Y': | |
1100 | break; | |
1101 | case 'Z': | |
1102 | break; | |
1103 | case '_': | |
a0d0e21e LW |
1104 | break; |
1105 | } | |
1106 | errno = EINVAL; | |
1107 | return 0; | |
1108 | ||
1109 | not_there: | |
1110 | errno = ENOENT; | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | MODULE = DB_File PACKAGE = DB_File PREFIX = db_ | |
1115 | ||
1f70e1ea PM |
1116 | BOOT: |
1117 | { | |
1118 | GetVersionInfo() ; | |
1119 | ||
1120 | empty.data = &zero ; | |
1121 | empty.size = sizeof(recno_t) ; | |
1122 | DBT_flags(empty) ; | |
1123 | } | |
1124 | ||
a0d0e21e LW |
1125 | double |
1126 | constant(name,arg) | |
1127 | char * name | |
1128 | int arg | |
1129 | ||
1130 | ||
1131 | DB_File | |
05475680 PM |
1132 | db_DoTie_(isHASH, dbtype, name=undef, flags=O_CREAT|O_RDWR, mode=0666, type=DB_HASH) |
1133 | int isHASH | |
a0d0e21e LW |
1134 | char * dbtype |
1135 | int flags | |
1136 | int mode | |
1137 | CODE: | |
1138 | { | |
1139 | char * name = (char *) NULL ; | |
1140 | SV * sv = (SV *) NULL ; | |
2d8e6c8d | 1141 | STRLEN n_a; |
a0d0e21e | 1142 | |
05475680 | 1143 | if (items >= 3 && SvOK(ST(2))) |
2d8e6c8d | 1144 | name = (char*) SvPV(ST(2), n_a) ; |
a0d0e21e | 1145 | |
05475680 PM |
1146 | if (items == 6) |
1147 | sv = ST(5) ; | |
a0d0e21e | 1148 | |
05475680 | 1149 | RETVAL = ParseOpenInfo(isHASH, name, flags, mode, sv) ; |
4633a7c4 LW |
1150 | if (RETVAL->dbp == NULL) |
1151 | RETVAL = NULL ; | |
a0d0e21e LW |
1152 | } |
1153 | OUTPUT: | |
1154 | RETVAL | |
1155 | ||
a0d0e21e LW |
1156 | int |
1157 | db_DESTROY(db) | |
1158 | DB_File db | |
8e07c86e AD |
1159 | INIT: |
1160 | CurrentDB = db ; | |
1161 | CLEANUP: | |
1162 | if (db->hash) | |
1163 | SvREFCNT_dec(db->hash) ; | |
1164 | if (db->compare) | |
1165 | SvREFCNT_dec(db->compare) ; | |
1166 | if (db->prefix) | |
1167 | SvREFCNT_dec(db->prefix) ; | |
1168 | Safefree(db) ; | |
1f70e1ea PM |
1169 | #ifdef DB_VERSION_MAJOR |
1170 | if (RETVAL > 0) | |
1171 | RETVAL = -1 ; | |
1172 | #endif | |
a0d0e21e LW |
1173 | |
1174 | ||
1175 | int | |
1176 | db_DELETE(db, key, flags=0) | |
1177 | DB_File db | |
1178 | DBTKEY key | |
1179 | u_int flags | |
8e07c86e AD |
1180 | INIT: |
1181 | CurrentDB = db ; | |
a0d0e21e | 1182 | |
f6b705ef | 1183 | |
1184 | int | |
1185 | db_EXISTS(db, key) | |
1186 | DB_File db | |
1187 | DBTKEY key | |
1188 | CODE: | |
1189 | { | |
1190 | DBT value ; | |
1191 | ||
1f70e1ea | 1192 | DBT_flags(value) ; |
f6b705ef | 1193 | CurrentDB = db ; |
1f70e1ea | 1194 | RETVAL = (((db->dbp)->get)(db->dbp, TXN &key, &value, 0) == 0) ; |
f6b705ef | 1195 | } |
1196 | OUTPUT: | |
1197 | RETVAL | |
1198 | ||
a0d0e21e LW |
1199 | int |
1200 | db_FETCH(db, key, flags=0) | |
1201 | DB_File db | |
1202 | DBTKEY key | |
1203 | u_int flags | |
1204 | CODE: | |
1205 | { | |
1f70e1ea | 1206 | DBT value ; |
a0d0e21e | 1207 | |
1f70e1ea | 1208 | DBT_flags(value) ; |
8e07c86e | 1209 | CurrentDB = db ; |
1f70e1ea PM |
1210 | /* RETVAL = ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) ; */ |
1211 | RETVAL = db_get(db, key, value, flags) ; | |
a0d0e21e | 1212 | ST(0) = sv_newmortal(); |
a9fd575d | 1213 | OutputValue(ST(0), value) |
a0d0e21e LW |
1214 | } |
1215 | ||
1216 | int | |
1217 | db_STORE(db, key, value, flags=0) | |
1218 | DB_File db | |
1219 | DBTKEY key | |
1220 | DBT value | |
1221 | u_int flags | |
8e07c86e AD |
1222 | INIT: |
1223 | CurrentDB = db ; | |
a0d0e21e LW |
1224 | |
1225 | ||
1226 | int | |
1227 | db_FIRSTKEY(db) | |
1228 | DB_File db | |
1229 | CODE: | |
1230 | { | |
1f70e1ea | 1231 | DBTKEY key ; |
a0d0e21e LW |
1232 | DBT value ; |
1233 | ||
1f70e1ea PM |
1234 | DBT_flags(key) ; |
1235 | DBT_flags(value) ; | |
8e07c86e | 1236 | CurrentDB = db ; |
1f70e1ea | 1237 | RETVAL = do_SEQ(db, key, value, R_FIRST) ; |
a0d0e21e | 1238 | ST(0) = sv_newmortal(); |
a9fd575d | 1239 | OutputKey(ST(0), key) ; |
a0d0e21e LW |
1240 | } |
1241 | ||
1242 | int | |
1243 | db_NEXTKEY(db, key) | |
1244 | DB_File db | |
1245 | DBTKEY key | |
1246 | CODE: | |
1247 | { | |
1248 | DBT value ; | |
1249 | ||
1f70e1ea | 1250 | DBT_flags(value) ; |
8e07c86e | 1251 | CurrentDB = db ; |
1f70e1ea | 1252 | RETVAL = do_SEQ(db, key, value, R_NEXT) ; |
a0d0e21e | 1253 | ST(0) = sv_newmortal(); |
a9fd575d | 1254 | OutputKey(ST(0), key) ; |
a0d0e21e LW |
1255 | } |
1256 | ||
1257 | # | |
1258 | # These would be nice for RECNO | |
1259 | # | |
1260 | ||
1261 | int | |
1262 | unshift(db, ...) | |
1263 | DB_File db | |
045291aa | 1264 | ALIAS: UNSHIFT = 1 |
a0d0e21e LW |
1265 | CODE: |
1266 | { | |
1267 | DBTKEY key ; | |
1268 | DBT value ; | |
1269 | int i ; | |
1270 | int One ; | |
4633a7c4 | 1271 | DB * Db = db->dbp ; |
2d8e6c8d | 1272 | STRLEN n_a; |
a0d0e21e | 1273 | |
1f70e1ea PM |
1274 | DBT_flags(key) ; |
1275 | DBT_flags(value) ; | |
8e07c86e | 1276 | CurrentDB = db ; |
1f70e1ea PM |
1277 | #ifdef DB_VERSION_MAJOR |
1278 | /* get the first value */ | |
1279 | RETVAL = do_SEQ(db, key, value, DB_FIRST) ; | |
1280 | RETVAL = 0 ; | |
1281 | #else | |
a0d0e21e | 1282 | RETVAL = -1 ; |
1f70e1ea | 1283 | #endif |
a0d0e21e LW |
1284 | for (i = items-1 ; i > 0 ; --i) |
1285 | { | |
2d8e6c8d GS |
1286 | value.data = SvPV(ST(i), n_a) ; |
1287 | value.size = n_a ; | |
a0d0e21e LW |
1288 | One = 1 ; |
1289 | key.data = &One ; | |
1290 | key.size = sizeof(int) ; | |
1f70e1ea PM |
1291 | #ifdef DB_VERSION_MAJOR |
1292 | RETVAL = (db->cursor->c_put)(db->cursor, &key, &value, DB_BEFORE) ; | |
1293 | #else | |
4633a7c4 | 1294 | RETVAL = (Db->put)(Db, &key, &value, R_IBEFORE) ; |
1f70e1ea | 1295 | #endif |
a0d0e21e LW |
1296 | if (RETVAL != 0) |
1297 | break; | |
1298 | } | |
1299 | } | |
1300 | OUTPUT: | |
1301 | RETVAL | |
1302 | ||
1303 | I32 | |
1304 | pop(db) | |
1305 | DB_File db | |
045291aa | 1306 | ALIAS: POP = 1 |
a0d0e21e LW |
1307 | CODE: |
1308 | { | |
1309 | DBTKEY key ; | |
1310 | DBT value ; | |
1311 | ||
1f70e1ea PM |
1312 | DBT_flags(key) ; |
1313 | DBT_flags(value) ; | |
8e07c86e | 1314 | CurrentDB = db ; |
1f70e1ea | 1315 | |
a0d0e21e | 1316 | /* First get the final value */ |
1f70e1ea | 1317 | RETVAL = do_SEQ(db, key, value, R_LAST) ; |
a0d0e21e LW |
1318 | ST(0) = sv_newmortal(); |
1319 | /* Now delete it */ | |
1320 | if (RETVAL == 0) | |
1321 | { | |
f6b705ef | 1322 | /* the call to del will trash value, so take a copy now */ |
a9fd575d | 1323 | OutputValue(ST(0), value) ; |
1f70e1ea | 1324 | RETVAL = db_del(db, key, R_CURSOR) ; |
f6b705ef | 1325 | if (RETVAL != 0) |
6b88bc9c | 1326 | sv_setsv(ST(0), &PL_sv_undef); |
a0d0e21e LW |
1327 | } |
1328 | } | |
1329 | ||
1330 | I32 | |
1331 | shift(db) | |
1332 | DB_File db | |
045291aa | 1333 | ALIAS: SHIFT = 1 |
a0d0e21e LW |
1334 | CODE: |
1335 | { | |
a0d0e21e | 1336 | DBT value ; |
f6b705ef | 1337 | DBTKEY key ; |
a0d0e21e | 1338 | |
1f70e1ea PM |
1339 | DBT_flags(key) ; |
1340 | DBT_flags(value) ; | |
8e07c86e | 1341 | CurrentDB = db ; |
a0d0e21e | 1342 | /* get the first value */ |
1f70e1ea | 1343 | RETVAL = do_SEQ(db, key, value, R_FIRST) ; |
a0d0e21e LW |
1344 | ST(0) = sv_newmortal(); |
1345 | /* Now delete it */ | |
1346 | if (RETVAL == 0) | |
1347 | { | |
f6b705ef | 1348 | /* the call to del will trash value, so take a copy now */ |
a9fd575d | 1349 | OutputValue(ST(0), value) ; |
1f70e1ea | 1350 | RETVAL = db_del(db, key, R_CURSOR) ; |
f6b705ef | 1351 | if (RETVAL != 0) |
6b88bc9c | 1352 | sv_setsv (ST(0), &PL_sv_undef) ; |
a0d0e21e LW |
1353 | } |
1354 | } | |
1355 | ||
1356 | ||
1357 | I32 | |
1358 | push(db, ...) | |
1359 | DB_File db | |
045291aa | 1360 | ALIAS: PUSH = 1 |
a0d0e21e LW |
1361 | CODE: |
1362 | { | |
1363 | DBTKEY key ; | |
1364 | DBT value ; | |
4633a7c4 | 1365 | DB * Db = db->dbp ; |
a0d0e21e | 1366 | int i ; |
2d8e6c8d | 1367 | STRLEN n_a; |
a0d0e21e | 1368 | |
1f70e1ea PM |
1369 | DBT_flags(key) ; |
1370 | DBT_flags(value) ; | |
8e07c86e | 1371 | CurrentDB = db ; |
1f70e1ea | 1372 | #ifdef DB_VERSION_MAJOR |
ca63f0d2 GS |
1373 | RETVAL = 0 ; |
1374 | key = empty ; | |
1f70e1ea PM |
1375 | for (i = 1 ; i < items ; ++i) |
1376 | { | |
2d8e6c8d GS |
1377 | value.data = SvPV(ST(i), n_a) ; |
1378 | value.size = n_a ; | |
ca63f0d2 | 1379 | RETVAL = (Db->put)(Db, NULL, &key, &value, DB_APPEND) ; |
1f70e1ea PM |
1380 | if (RETVAL != 0) |
1381 | break; | |
1382 | } | |
1383 | #else | |
ca63f0d2 GS |
1384 | /* Set the Cursor to the Last element */ |
1385 | RETVAL = do_SEQ(db, key, value, R_LAST) ; | |
1386 | if (RETVAL >= 0) | |
1387 | { | |
1388 | if (RETVAL == 1) | |
1389 | key = empty ; | |
8e07c86e AD |
1390 | for (i = items - 1 ; i > 0 ; --i) |
1391 | { | |
2d8e6c8d GS |
1392 | value.data = SvPV(ST(i), n_a) ; |
1393 | value.size = n_a ; | |
ca63f0d2 | 1394 | RETVAL = (Db->put)(Db, &key, &value, R_IAFTER) ; |
8e07c86e AD |
1395 | if (RETVAL != 0) |
1396 | break; | |
1397 | } | |
a0d0e21e | 1398 | } |
ca63f0d2 | 1399 | #endif |
a0d0e21e LW |
1400 | } |
1401 | OUTPUT: | |
1402 | RETVAL | |
1403 | ||
1404 | ||
1405 | I32 | |
1406 | length(db) | |
1407 | DB_File db | |
045291aa | 1408 | ALIAS: FETCHSIZE = 1 |
a0d0e21e | 1409 | CODE: |
8e07c86e | 1410 | CurrentDB = db ; |
1f70e1ea | 1411 | RETVAL = GetArrayLength(db) ; |
a0d0e21e LW |
1412 | OUTPUT: |
1413 | RETVAL | |
1414 | ||
1415 | ||
1416 | # | |
1417 | # Now provide an interface to the rest of the DB functionality | |
1418 | # | |
1419 | ||
1420 | int | |
1421 | db_del(db, key, flags=0) | |
1422 | DB_File db | |
1423 | DBTKEY key | |
1424 | u_int flags | |
1f70e1ea | 1425 | CODE: |
8e07c86e | 1426 | CurrentDB = db ; |
1f70e1ea PM |
1427 | RETVAL = db_del(db, key, flags) ; |
1428 | #ifdef DB_VERSION_MAJOR | |
1429 | if (RETVAL > 0) | |
1430 | RETVAL = -1 ; | |
1431 | else if (RETVAL == DB_NOTFOUND) | |
1432 | RETVAL = 1 ; | |
1433 | #endif | |
1434 | OUTPUT: | |
1435 | RETVAL | |
a0d0e21e LW |
1436 | |
1437 | ||
1438 | int | |
1439 | db_get(db, key, value, flags=0) | |
1440 | DB_File db | |
1441 | DBTKEY key | |
a6ed719b | 1442 | DBT value = NO_INIT |
a0d0e21e | 1443 | u_int flags |
1f70e1ea | 1444 | CODE: |
8e07c86e | 1445 | CurrentDB = db ; |
1f70e1ea PM |
1446 | DBT_flags(value) ; |
1447 | RETVAL = db_get(db, key, value, flags) ; | |
1448 | #ifdef DB_VERSION_MAJOR | |
1449 | if (RETVAL > 0) | |
1450 | RETVAL = -1 ; | |
1451 | else if (RETVAL == DB_NOTFOUND) | |
1452 | RETVAL = 1 ; | |
1453 | #endif | |
a0d0e21e | 1454 | OUTPUT: |
1f70e1ea | 1455 | RETVAL |
a0d0e21e LW |
1456 | value |
1457 | ||
1458 | int | |
1459 | db_put(db, key, value, flags=0) | |
1460 | DB_File db | |
1461 | DBTKEY key | |
1462 | DBT value | |
1463 | u_int flags | |
1f70e1ea | 1464 | CODE: |
8e07c86e | 1465 | CurrentDB = db ; |
1f70e1ea PM |
1466 | RETVAL = db_put(db, key, value, flags) ; |
1467 | #ifdef DB_VERSION_MAJOR | |
1468 | if (RETVAL > 0) | |
1469 | RETVAL = -1 ; | |
1470 | else if (RETVAL == DB_KEYEXIST) | |
1471 | RETVAL = 1 ; | |
1472 | #endif | |
a0d0e21e | 1473 | OUTPUT: |
1f70e1ea | 1474 | RETVAL |
9d9477b1 | 1475 | key if (flagSet(flags, R_IAFTER) || flagSet(flags, R_IBEFORE)) OutputKey(ST(1), key); |
a0d0e21e LW |
1476 | |
1477 | int | |
1478 | db_fd(db) | |
1479 | DB_File db | |
1f70e1ea PM |
1480 | int status = 0 ; |
1481 | CODE: | |
8e07c86e | 1482 | CurrentDB = db ; |
1f70e1ea PM |
1483 | #ifdef DB_VERSION_MAJOR |
1484 | RETVAL = -1 ; | |
1485 | status = (db->in_memory | |
1486 | ? -1 | |
1487 | : ((db->dbp)->fd)(db->dbp, &RETVAL) ) ; | |
1488 | if (status != 0) | |
1489 | RETVAL = -1 ; | |
1490 | #else | |
1491 | RETVAL = (db->in_memory | |
1492 | ? -1 | |
1493 | : ((db->dbp)->fd)(db->dbp) ) ; | |
1494 | #endif | |
1495 | OUTPUT: | |
1496 | RETVAL | |
a0d0e21e LW |
1497 | |
1498 | int | |
1499 | db_sync(db, flags=0) | |
1500 | DB_File db | |
1501 | u_int flags | |
1f70e1ea | 1502 | CODE: |
8e07c86e | 1503 | CurrentDB = db ; |
1f70e1ea PM |
1504 | RETVAL = db_sync(db, flags) ; |
1505 | #ifdef DB_VERSION_MAJOR | |
1506 | if (RETVAL > 0) | |
1507 | RETVAL = -1 ; | |
1508 | #endif | |
1509 | OUTPUT: | |
1510 | RETVAL | |
a0d0e21e LW |
1511 | |
1512 | ||
1513 | int | |
1514 | db_seq(db, key, value, flags) | |
1515 | DB_File db | |
1516 | DBTKEY key | |
a6ed719b | 1517 | DBT value = NO_INIT |
a0d0e21e | 1518 | u_int flags |
1f70e1ea | 1519 | CODE: |
8e07c86e | 1520 | CurrentDB = db ; |
1f70e1ea PM |
1521 | DBT_flags(value) ; |
1522 | RETVAL = db_seq(db, key, value, flags); | |
1523 | #ifdef DB_VERSION_MAJOR | |
1524 | if (RETVAL > 0) | |
1525 | RETVAL = -1 ; | |
1526 | else if (RETVAL == DB_NOTFOUND) | |
1527 | RETVAL = 1 ; | |
1528 | #endif | |
a0d0e21e | 1529 | OUTPUT: |
1f70e1ea | 1530 | RETVAL |
a0d0e21e LW |
1531 | key |
1532 | value | |
610ab055 | 1533 |