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/cvs/BDB/BDB.xs
Revision: 1.60
Committed: Mon Oct 20 02:58:42 2008 UTC (15 years, 7 months ago) by root
Branch: MAIN
Changes since 1.59: +6 -0 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2
3 #include "xthread.h"
4
5 #include <errno.h>
6
7 #include "EXTERN.h"
8 #include "perl.h"
9 #include "XSUB.h"
10
11 // perl stupidly defines these as macros, breaking
12 // lots and lots of code.
13 #undef open
14 #undef close
15 #undef abort
16 #undef malloc
17 #undef free
18 #undef send
19
20 #include <stddef.h>
21 #include <stdlib.h>
22 #include <errno.h>
23 #include <sys/types.h>
24 #include <limits.h>
25 #include <fcntl.h>
26
27 #ifndef _WIN32
28 # include <sys/time.h>
29 # include <unistd.h>
30 #endif
31
32 #include <db.h>
33
34 #if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
35 # error you need Berkeley DB 4.3 or a newer 4.x version installed
36 #endif
37
38 /* number of seconds after which idle threads exit */
39 #define IDLE_TIMEOUT 10
40
41 typedef SV SV_mutable;
42
43 typedef DB_ENV DB_ENV_ornull;
44 typedef DB_TXN DB_TXN_ornull;
45 typedef DBC DBC_ornull;
46 typedef DB DB_ornull;
47
48 typedef DB_ENV DB_ENV_ornuked;
49 typedef DB_TXN DB_TXN_ornuked;
50 typedef DBC DBC_ornuked;
51 typedef DB DB_ornuked;
52
53 #if DB_VERSION_MINOR >= 3
54 typedef DB_SEQUENCE DB_SEQUENCE_ornull;
55 typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
56 #endif
57
58 typedef char *bdb_filename;
59
60 static SV *prepare_cb;
61
62 #if DB_VERSION_MINOR >= 6
63 # define c_close close
64 # define c_count count
65 # define c_del del
66 # define c_dup dup
67 # define c_get get
68 # define c_pget pget
69 # define c_put put
70 #endif
71
72 static char *
73 get_bdb_filename (SV *sv)
74 {
75 if (!SvOK (sv))
76 return 0;
77
78 #if _WIN32
79 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
80 {
81 STRLEN len;
82 char *src = SvPVbyte (sv, len);
83 SV *t1 = sv_newmortal ();
84 SV *t2 = sv_newmortal ();
85
86 sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
87 sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
88
89 len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
90 len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
91 SvPOK_only (t2);
92 SvPVX (t2)[len] = 0;
93 SvCUR_set (t2, len);
94
95 return SvPVX (t2);
96 }
97 #else
98 return SvPVbyte_nolen (sv);
99 #endif
100 }
101
102 static void
103 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
104 {
105 printf ("err[%s]\n", msg);
106 }
107
108 static void
109 debug_msgcall (const DB_ENV *dbenv, const char *msg)
110 {
111 printf ("msg[%s]\n", msg);
112 }
113
114 static char *
115 strdup_ornull (const char *s)
116 {
117 return s ? strdup (s) : 0;
118 }
119
120 static void
121 sv_to_dbt (DBT *dbt, SV *sv)
122 {
123 STRLEN len;
124 char *data = SvPVbyte (sv, len);
125
126 dbt->data = malloc (len);
127 memcpy (dbt->data, data, len);
128 dbt->size = len;
129 dbt->flags = DB_DBT_REALLOC;
130 }
131
132 static void
133 dbt_to_sv (SV *sv, DBT *dbt)
134 {
135 if (sv)
136 {
137 SvREADONLY_off (sv);
138
139 if (dbt->data)
140 sv_setpvn_mg (sv, dbt->data, dbt->size);
141 else
142 sv_setsv_mg (sv, &PL_sv_undef);
143
144 SvREFCNT_dec (sv);
145 }
146
147 free (dbt->data);
148 }
149
150 enum {
151 REQ_QUIT,
152 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
153 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
154 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
155 REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
156 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
157 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
158 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
159 };
160
161 typedef struct bdb_cb
162 {
163 struct bdb_cb *volatile next;
164 SV *callback;
165 int type, pri, result;
166
167 DB_ENV *env;
168 DB *db;
169 DB_TXN *txn;
170 DBC *dbc;
171
172 UV uv1;
173 int int1, int2;
174 U32 uint1, uint2;
175 char *buf1, *buf2, *buf3;
176 SV *sv1, *sv2, *sv3;
177
178 DBT dbt1, dbt2, dbt3;
179 DB_KEY_RANGE key_range;
180 #if DB_VERSION_MINOR >= 3
181 DB_SEQUENCE *seq;
182 db_seq_t seq_t;
183 #endif
184
185 SV *rsv1, *rsv2; // keep some request objects alive
186 } bdb_cb;
187
188 typedef bdb_cb *bdb_req;
189
190 enum {
191 PRI_MIN = -4,
192 PRI_MAX = 4,
193
194 DEFAULT_PRI = 0,
195 PRI_BIAS = -PRI_MIN,
196 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
197 };
198
199 #define AIO_TICKS ((1000000 + 1023) >> 10)
200
201 static SV *on_next_submit;
202
203 static unsigned int max_poll_time = 0;
204 static unsigned int max_poll_reqs = 0;
205
206 /* calculcate time difference in ~1/AIO_TICKS of a second */
207 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
208 {
209 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
210 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
211 }
212
213 static int next_pri = DEFAULT_PRI + PRI_BIAS;
214
215 static unsigned int started, idle, wanted;
216
217 /* worker threads management */
218 static mutex_t wrklock = X_MUTEX_INIT;
219
220 typedef struct worker {
221 /* locked by wrklock */
222 struct worker *prev, *next;
223
224 thread_t tid;
225
226 /* locked by reslock, reqlock or wrklock */
227 bdb_req req; /* currently processed request */
228 void *dbuf;
229 DIR *dirp;
230 } worker;
231
232 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
233
234 static void worker_clear (worker *wrk)
235 {
236 }
237
238 static void worker_free (worker *wrk)
239 {
240 wrk->next->prev = wrk->prev;
241 wrk->prev->next = wrk->next;
242
243 free (wrk);
244 }
245
246 static volatile unsigned int nreqs, nready, npending;
247 static volatile unsigned int max_idle = 4;
248 static volatile unsigned int max_outstanding = 0xffffffff;
249 static int respipe_osf [2], respipe [2] = { -1, -1 };
250
251 static mutex_t reslock = X_MUTEX_INIT;
252 static mutex_t reqlock = X_MUTEX_INIT;
253 static cond_t reqwait = X_COND_INIT;
254
255 #if WORDACCESS_UNSAFE
256
257 static unsigned int get_nready (void)
258 {
259 unsigned int retval;
260
261 X_LOCK (reqlock);
262 retval = nready;
263 X_UNLOCK (reqlock);
264
265 return retval;
266 }
267
268 static unsigned int get_npending (void)
269 {
270 unsigned int retval;
271
272 X_LOCK (reslock);
273 retval = npending;
274 X_UNLOCK (reslock);
275
276 return retval;
277 }
278
279 static unsigned int get_nthreads (void)
280 {
281 unsigned int retval;
282
283 X_LOCK (wrklock);
284 retval = started;
285 X_UNLOCK (wrklock);
286
287 return retval;
288 }
289
290 #else
291
292 # define get_nready() nready
293 # define get_npending() npending
294 # define get_nthreads() started
295
296 #endif
297
298 /*
299 * a somewhat faster data structure might be nice, but
300 * with 8 priorities this actually needs <20 insns
301 * per shift, the most expensive operation.
302 */
303 typedef struct {
304 bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
305 int size;
306 } reqq;
307
308 static reqq req_queue;
309 static reqq res_queue;
310
311 int reqq_push (reqq *q, bdb_req req)
312 {
313 int pri = req->pri;
314 req->next = 0;
315
316 if (q->qe[pri])
317 {
318 q->qe[pri]->next = req;
319 q->qe[pri] = req;
320 }
321 else
322 q->qe[pri] = q->qs[pri] = req;
323
324 return q->size++;
325 }
326
327 bdb_req reqq_shift (reqq *q)
328 {
329 int pri;
330
331 if (!q->size)
332 return 0;
333
334 --q->size;
335
336 for (pri = NUM_PRI; pri--; )
337 {
338 bdb_req req = q->qs[pri];
339
340 if (req)
341 {
342 if (!(q->qs[pri] = req->next))
343 q->qe[pri] = 0;
344
345 return req;
346 }
347 }
348
349 abort ();
350 }
351
352 static int poll_cb (void);
353 static void req_free (bdb_req req);
354
355 static int req_invoke (bdb_req req)
356 {
357 switch (req->type)
358 {
359 case REQ_DB_CLOSE:
360 SvREFCNT_dec (req->sv1);
361 break;
362
363 case REQ_DB_GET:
364 case REQ_DB_PGET:
365 case REQ_C_GET:
366 case REQ_C_PGET:
367 case REQ_DB_PUT:
368 case REQ_C_PUT:
369 dbt_to_sv (req->sv1, &req->dbt1);
370 dbt_to_sv (req->sv2, &req->dbt2);
371 dbt_to_sv (req->sv3, &req->dbt3);
372 break;
373
374 case REQ_DB_KEY_RANGE:
375 {
376 AV *av = newAV ();
377
378 av_push (av, newSVnv (req->key_range.less));
379 av_push (av, newSVnv (req->key_range.equal));
380 av_push (av, newSVnv (req->key_range.greater));
381
382 SvREADONLY_off (req->sv1);
383 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
384 SvREFCNT_dec (req->sv1);
385 }
386 break;
387
388 #if DB_VERSION_MINOR >= 3
389 case REQ_SEQ_GET:
390 SvREADONLY_off (req->sv1);
391
392 if (sizeof (IV) > 4)
393 sv_setiv_mg (req->sv1, (IV)req->seq_t);
394 else
395 sv_setnv_mg (req->sv1, (NV)req->seq_t);
396
397 SvREFCNT_dec (req->sv1);
398 break;
399 #endif
400 }
401
402 errno = req->result;
403
404 if (req->callback)
405 {
406 dSP;
407
408 ENTER;
409 SAVETMPS;
410 PUSHMARK (SP);
411
412 PUTBACK;
413 call_sv (req->callback, G_VOID | G_EVAL);
414 SPAGAIN;
415
416 FREETMPS;
417 LEAVE;
418
419 return !SvTRUE (ERRSV);
420 }
421
422 return 1;
423 }
424
425 static void req_free (bdb_req req)
426 {
427 SvREFCNT_dec (req->callback);
428
429 SvREFCNT_dec (req->rsv1);
430 SvREFCNT_dec (req->rsv2);
431
432 free (req->buf1);
433 free (req->buf2);
434 free (req->buf3);
435
436 Safefree (req);
437 }
438
439 #ifdef USE_SOCKETS_AS_HANDLES
440 # define TO_SOCKET(x) (win32_get_osfhandle (x))
441 #else
442 # define TO_SOCKET(x) (x)
443 #endif
444
445 static void
446 create_respipe (void)
447 {
448 #ifdef _WIN32
449 int arg; /* argg */
450 #endif
451 int old_readfd = respipe [0];
452
453 if (respipe [1] >= 0)
454 respipe_close (TO_SOCKET (respipe [1]));
455
456 #ifdef _WIN32
457 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
458 #else
459 if (pipe (respipe))
460 #endif
461 croak ("unable to initialize result pipe");
462
463 if (old_readfd >= 0)
464 {
465 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
466 croak ("unable to initialize result pipe(2)");
467
468 respipe_close (respipe [0]);
469 respipe [0] = old_readfd;
470 }
471
472 #ifdef _WIN32
473 arg = 1;
474 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
475 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
476 #else
477 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
478 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
479 #endif
480 croak ("unable to initialize result pipe(3)");
481
482 respipe_osf [0] = TO_SOCKET (respipe [0]);
483 respipe_osf [1] = TO_SOCKET (respipe [1]);
484 }
485
486 static void bdb_request (bdb_req req);
487 X_THREAD_PROC (bdb_proc);
488
489 static void start_thread (void)
490 {
491 worker *wrk = calloc (1, sizeof (worker));
492
493 if (!wrk)
494 croak ("unable to allocate worker thread data");
495
496 X_LOCK (wrklock);
497 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
498 {
499 wrk->prev = &wrk_first;
500 wrk->next = wrk_first.next;
501 wrk_first.next->prev = wrk;
502 wrk_first.next = wrk;
503 ++started;
504 }
505 else
506 free (wrk);
507
508 X_UNLOCK (wrklock);
509 }
510
511 static void maybe_start_thread (void)
512 {
513 if (get_nthreads () >= wanted)
514 return;
515
516 /* todo: maybe use idle here, but might be less exact */
517 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
518 return;
519
520 start_thread ();
521 }
522
523 static void req_send (bdb_req req)
524 {
525 SV *wait_callback = 0;
526
527 if (on_next_submit)
528 {
529 dSP;
530 SV *cb = sv_2mortal (on_next_submit);
531
532 on_next_submit = 0;
533
534 PUSHMARK (SP);
535 PUTBACK;
536 call_sv (cb, G_DISCARD | G_EVAL);
537 SPAGAIN;
538 }
539
540 // synthesize callback if none given
541 if (!req->callback)
542 {
543 if (SvOK (prepare_cb))
544 {
545 int count;
546
547 dSP;
548 PUSHMARK (SP);
549 PUTBACK;
550 count = call_sv (prepare_cb, G_ARRAY);
551 SPAGAIN;
552
553 if (count != 2)
554 croak ("sync prepare callback must return exactly two values\n");
555
556 wait_callback = POPs;
557 req->callback = SvREFCNT_inc (POPs);
558 }
559 else
560 {
561 // execute request synchronously
562 bdb_request (req);
563 req_invoke (req);
564 req_free (req);
565 return;
566 }
567 }
568
569 ++nreqs;
570
571 X_LOCK (reqlock);
572 ++nready;
573 reqq_push (&req_queue, req);
574 X_COND_SIGNAL (reqwait);
575 X_UNLOCK (reqlock);
576
577 maybe_start_thread ();
578
579 if (wait_callback)
580 {
581 dSP;
582 PUSHMARK (SP);
583 PUTBACK;
584 call_sv (wait_callback, G_DISCARD);
585 }
586 }
587
588 static void end_thread (void)
589 {
590 bdb_req req = calloc (1, sizeof (bdb_cb));
591
592 req->type = REQ_QUIT;
593 req->pri = PRI_MAX + PRI_BIAS;
594
595 X_LOCK (reqlock);
596 reqq_push (&req_queue, req);
597 X_COND_SIGNAL (reqwait);
598 X_UNLOCK (reqlock);
599
600 X_LOCK (wrklock);
601 --started;
602 X_UNLOCK (wrklock);
603 }
604
605 static void set_max_idle (int nthreads)
606 {
607 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
608 max_idle = nthreads <= 0 ? 1 : nthreads;
609 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
610 }
611
612 static void min_parallel (int nthreads)
613 {
614 if (wanted < nthreads)
615 wanted = nthreads;
616 }
617
618 static void max_parallel (int nthreads)
619 {
620 if (wanted > nthreads)
621 wanted = nthreads;
622
623 while (started > wanted)
624 end_thread ();
625 }
626
627 static void poll_wait (void)
628 {
629 fd_set rfd;
630
631 while (nreqs)
632 {
633 int size;
634 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
635 size = res_queue.size;
636 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
637
638 if (size)
639 return;
640
641 maybe_start_thread ();
642
643 FD_ZERO (&rfd);
644 FD_SET (respipe [0], &rfd);
645
646 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
647 }
648 }
649
650 static int poll_cb (void)
651 {
652 dSP;
653 int count = 0;
654 int maxreqs = max_poll_reqs;
655 int do_croak = 0;
656 struct timeval tv_start, tv_now;
657 bdb_req req;
658
659 if (max_poll_time)
660 gettimeofday (&tv_start, 0);
661
662 for (;;)
663 {
664 for (;;)
665 {
666 maybe_start_thread ();
667
668 X_LOCK (reslock);
669 req = reqq_shift (&res_queue);
670
671 if (req)
672 {
673 --npending;
674
675 if (!res_queue.size)
676 {
677 /* read any signals sent by the worker threads */
678 char buf [4];
679 while (respipe_read (respipe [0], buf, 4) == 4)
680 ;
681 }
682 }
683
684 X_UNLOCK (reslock);
685
686 if (!req)
687 break;
688
689 --nreqs;
690
691 if (!req_invoke (req))
692 {
693 req_free (req);
694 croak (0);
695 }
696
697 count++;
698
699 req_free (req);
700
701 if (maxreqs && !--maxreqs)
702 break;
703
704 if (max_poll_time)
705 {
706 gettimeofday (&tv_now, 0);
707
708 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
709 break;
710 }
711 }
712
713 if (nreqs <= max_outstanding)
714 break;
715
716 poll_wait ();
717
718 ++maxreqs;
719 }
720
721 return count;
722 }
723
724 /*****************************************************************************/
725
726 static void
727 bdb_request (bdb_req req)
728 {
729 switch (req->type)
730 {
731 case REQ_ENV_OPEN:
732 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
733 break;
734
735 case REQ_ENV_CLOSE:
736 req->result = req->env->close (req->env, req->uint1);
737 break;
738
739 case REQ_ENV_TXN_CHECKPOINT:
740 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
741 break;
742
743 case REQ_ENV_LOCK_DETECT:
744 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
745 break;
746
747 case REQ_ENV_MEMP_SYNC:
748 req->result = req->env->memp_sync (req->env, 0);
749 break;
750
751 case REQ_ENV_MEMP_TRICKLE:
752 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
753 break;
754
755 case REQ_ENV_DBREMOVE:
756 req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
757 break;
758
759 case REQ_ENV_DBRENAME:
760 req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
761 break;
762
763 case REQ_DB_OPEN:
764 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
765 break;
766
767 case REQ_DB_CLOSE:
768 req->result = req->db->close (req->db, req->uint1);
769 break;
770
771 #if DB_VERSION_MINOR >= 4
772 case REQ_DB_COMPACT:
773 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
774 break;
775 #endif
776
777 case REQ_DB_SYNC:
778 req->result = req->db->sync (req->db, req->uint1);
779 break;
780
781 case REQ_DB_UPGRADE:
782 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
783 break;
784
785 case REQ_DB_PUT:
786 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
787 break;
788
789 #if DB_VERSION_MINOR >= 6
790 case REQ_DB_EXISTS:
791 req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
792 break;
793 #endif
794 case REQ_DB_GET:
795 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
796 break;
797
798 case REQ_DB_PGET:
799 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
800 break;
801
802 case REQ_DB_DEL:
803 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
804 break;
805
806 case REQ_DB_KEY_RANGE:
807 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
808 break;
809
810 case REQ_TXN_COMMIT:
811 req->result = req->txn->commit (req->txn, req->uint1);
812 break;
813
814 case REQ_TXN_ABORT:
815 req->result = req->txn->abort (req->txn);
816 break;
817
818 case REQ_TXN_FINISH:
819 if (req->txn->flags & TXN_DEADLOCK)
820 {
821 req->result = req->txn->abort (req->txn);
822 if (!req->result)
823 req->result = DB_LOCK_DEADLOCK;
824 }
825 else
826 req->result = req->txn->commit (req->txn, req->uint1);
827 break;
828
829 case REQ_C_CLOSE:
830 req->result = req->dbc->c_close (req->dbc);
831 break;
832
833 case REQ_C_COUNT:
834 {
835 db_recno_t recno;
836 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
837 req->uv1 = recno;
838 }
839 break;
840
841 case REQ_C_PUT:
842 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
843 break;
844
845 case REQ_C_GET:
846 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
847 break;
848
849 case REQ_C_PGET:
850 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
851 break;
852
853 case REQ_C_DEL:
854 req->result = req->dbc->c_del (req->dbc, req->uint1);
855 break;
856
857 #if DB_VERSION_MINOR >= 3
858 case REQ_SEQ_OPEN:
859 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
860 break;
861
862 case REQ_SEQ_CLOSE:
863 req->result = req->seq->close (req->seq, req->uint1);
864 break;
865
866 case REQ_SEQ_GET:
867 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
868 break;
869
870 case REQ_SEQ_REMOVE:
871 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
872 break;
873 #endif
874
875 default:
876 req->result = ENOSYS;
877 break;
878 }
879
880 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
881 req->txn->flags |= TXN_DEADLOCK;
882 }
883
884 X_THREAD_PROC (bdb_proc)
885 {
886 bdb_req req;
887 struct timespec ts;
888 worker *self = (worker *)thr_arg;
889
890 /* try to distribute timeouts somewhat evenly */
891 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
892
893 for (;;)
894 {
895 ts.tv_sec = time (0) + IDLE_TIMEOUT;
896
897 X_LOCK (reqlock);
898
899 for (;;)
900 {
901 self->req = req = reqq_shift (&req_queue);
902
903 if (req)
904 break;
905
906 ++idle;
907
908 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
909 == ETIMEDOUT)
910 {
911 if (idle > max_idle)
912 {
913 --idle;
914 X_UNLOCK (reqlock);
915 X_LOCK (wrklock);
916 --started;
917 X_UNLOCK (wrklock);
918 goto quit;
919 }
920
921 /* we are allowed to idle, so do so without any timeout */
922 X_COND_WAIT (reqwait, reqlock);
923 ts.tv_sec = time (0) + IDLE_TIMEOUT;
924 }
925
926 --idle;
927 }
928
929 --nready;
930
931 X_UNLOCK (reqlock);
932
933 if (req->type == REQ_QUIT)
934 {
935 X_LOCK (reslock);
936 free (req);
937 self->req = 0;
938 X_UNLOCK (reslock);
939
940 goto quit;
941 }
942
943 bdb_request (req);
944
945 X_LOCK (reslock);
946
947 ++npending;
948
949 if (!reqq_push (&res_queue, req))
950 /* write a dummy byte to the pipe so fh becomes ready */
951 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
952
953 self->req = 0;
954 worker_clear (self);
955
956 X_UNLOCK (reslock);
957 }
958
959 quit:
960 X_LOCK (wrklock);
961 worker_free (self);
962 X_UNLOCK (wrklock);
963
964 return 0;
965 }
966
967 /*****************************************************************************/
968
969 static void atfork_prepare (void)
970 {
971 X_LOCK (wrklock);
972 X_LOCK (reqlock);
973 X_LOCK (reslock);
974 }
975
976 static void atfork_parent (void)
977 {
978 X_UNLOCK (reslock);
979 X_UNLOCK (reqlock);
980 X_UNLOCK (wrklock);
981 }
982
983 static void atfork_child (void)
984 {
985 bdb_req prv;
986
987 while (prv = reqq_shift (&req_queue))
988 req_free (prv);
989
990 while (prv = reqq_shift (&res_queue))
991 req_free (prv);
992
993 while (wrk_first.next != &wrk_first)
994 {
995 worker *wrk = wrk_first.next;
996
997 if (wrk->req)
998 req_free (wrk->req);
999
1000 worker_clear (wrk);
1001 worker_free (wrk);
1002 }
1003
1004 started = 0;
1005 idle = 0;
1006 nreqs = 0;
1007 nready = 0;
1008 npending = 0;
1009
1010 create_respipe ();
1011
1012 atfork_parent ();
1013 }
1014
1015 #define dREQ(reqtype,rsvcnt) \
1016 bdb_req req; \
1017 int req_pri = next_pri; \
1018 next_pri = DEFAULT_PRI + PRI_BIAS; \
1019 \
1020 if (callback && SvOK (callback)) \
1021 croak ("callback has illegal type or extra arguments"); \
1022 \
1023 Newz (0, req, 1, bdb_cb); \
1024 if (!req) \
1025 croak ("out of memory during bdb_req allocation"); \
1026 \
1027 req->callback = SvREFCNT_inc (cb); \
1028 req->type = (reqtype); \
1029 req->pri = req_pri; \
1030 if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
1031 if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
1032 (void)0;
1033
1034 #define REQ_SEND \
1035 req_send (req)
1036
1037 #define SvPTR(var, arg, type, class, nullok) \
1038 if (!SvOK (arg)) \
1039 { \
1040 if (nullok != 1) \
1041 croak (# var " must be a " # class " object, not undef"); \
1042 \
1043 (var) = 0; \
1044 } \
1045 else if (sv_derived_from ((arg), # class)) \
1046 { \
1047 IV tmp = SvIV ((SV*) SvRV (arg)); \
1048 (var) = INT2PTR (type, tmp); \
1049 if (!var && nullok != 2) \
1050 croak (# var " is not a valid " # class " object anymore"); \
1051 } \
1052 else \
1053 croak (# var " is not of type " # class);
1054
1055 #define ARG_MUTABLE(name) \
1056 if (SvREADONLY (name)) \
1057 croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
1058
1059 static void
1060 ptr_nuke (SV *sv)
1061 {
1062 assert (SvROK (sv));
1063 sv_setiv (SvRV (sv), 0);
1064 }
1065
1066 static int
1067 errno_get (pTHX_ SV *sv, MAGIC *mg)
1068 {
1069 if (*mg->mg_ptr == '!') // should always be the case
1070 if (-30999 <= errno && errno <= -30800)
1071 {
1072 sv_setnv (sv, (NV)errno);
1073 sv_setpv (sv, db_strerror (errno));
1074 SvNOK_on (sv); /* what a wonderful hack! */
1075 // ^^^ copied from perl sources
1076 return 0;
1077 }
1078
1079 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1080 }
1081
1082 static MGVTBL vtbl_errno;
1083
1084 // this wonderful hack :( patches perl's $! variable to support our errno values
1085 static void
1086 patch_errno (void)
1087 {
1088 SV *sv;
1089 MAGIC *mg;
1090
1091 if (!(sv = get_sv ("!", 1)))
1092 return;
1093
1094 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1095 return;
1096
1097 if (mg->mg_virtual != &PL_vtbl_sv)
1098 return;
1099
1100 vtbl_errno = PL_vtbl_sv;
1101 vtbl_errno.svt_get = errno_get;
1102 mg->mg_virtual = &vtbl_errno;
1103 }
1104
1105 #if __GNUC__ >= 4
1106 # define noinline __attribute__ ((noinline))
1107 #else
1108 # define noinline
1109 #endif
1110
1111 static noinline SV *
1112 pop_callback (I32 *ritems, SV *sv)
1113 {
1114 if (SvROK (sv))
1115 {
1116 HV *st;
1117 GV *gvp;
1118 CV *cv;
1119 const char *name;
1120
1121 /* forgive me */
1122 if (SvTYPE (SvRV (sv)) == SVt_PVMG
1123 && (st = SvSTASH (SvRV (sv)))
1124 && (name = HvNAME_get (st))
1125 && (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
1126 return 0;
1127
1128 if ((cv = sv_2cv (sv, &st, &gvp, 0)))
1129 {
1130 --*ritems;
1131 return (SV *)cv;
1132 }
1133 }
1134
1135 return 0;
1136 }
1137
1138 /* stupid windows defines CALLBACK as well */
1139 #undef CALLBACK
1140 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1141
1142 MODULE = BDB PACKAGE = BDB
1143
1144 PROTOTYPES: ENABLE
1145
1146 BOOT:
1147 {
1148 HV *stash = gv_stashpv ("BDB", 1);
1149
1150 static const struct {
1151 const char *name;
1152 IV iv;
1153 } *civ, const_iv[] = {
1154 #define const_iv(name) { # name, (IV)DB_ ## name },
1155 const_iv (RPCCLIENT)
1156 const_iv (INIT_CDB)
1157 const_iv (INIT_LOCK)
1158 const_iv (INIT_LOG)
1159 const_iv (INIT_MPOOL)
1160 const_iv (INIT_REP)
1161 const_iv (INIT_TXN)
1162 const_iv (RECOVER)
1163 const_iv (INIT_TXN)
1164 const_iv (RECOVER_FATAL)
1165 const_iv (CREATE)
1166 const_iv (RDONLY)
1167 const_iv (USE_ENVIRON)
1168 const_iv (USE_ENVIRON_ROOT)
1169 const_iv (LOCKDOWN)
1170 const_iv (PRIVATE)
1171 const_iv (SYSTEM_MEM)
1172 const_iv (AUTO_COMMIT)
1173 const_iv (CDB_ALLDB)
1174 const_iv (DIRECT_DB)
1175 const_iv (NOLOCKING)
1176 const_iv (NOMMAP)
1177 const_iv (NOPANIC)
1178 const_iv (OVERWRITE)
1179 const_iv (PANIC_ENVIRONMENT)
1180 const_iv (REGION_INIT)
1181 const_iv (TIME_NOTGRANTED)
1182 const_iv (TXN_NOSYNC)
1183 const_iv (TXN_NOT_DURABLE)
1184 const_iv (TXN_WRITE_NOSYNC)
1185 const_iv (WRITECURSOR)
1186 const_iv (YIELDCPU)
1187 const_iv (ENCRYPT_AES)
1188 const_iv (XA_CREATE)
1189 const_iv (BTREE)
1190 const_iv (HASH)
1191 const_iv (QUEUE)
1192 const_iv (RECNO)
1193 const_iv (UNKNOWN)
1194 const_iv (EXCL)
1195 const_iv (TRUNCATE)
1196 const_iv (NOSYNC)
1197 const_iv (CHKSUM)
1198 const_iv (ENCRYPT)
1199 const_iv (DUP)
1200 const_iv (DUPSORT)
1201 const_iv (RECNUM)
1202 const_iv (RENUMBER)
1203 const_iv (REVSPLITOFF)
1204 const_iv (CONSUME)
1205 const_iv (CONSUME_WAIT)
1206 const_iv (GET_BOTH)
1207 const_iv (GET_BOTH_RANGE)
1208 //const_iv (SET_RECNO)
1209 //const_iv (MULTIPLE)
1210 const_iv (SNAPSHOT)
1211 const_iv (JOIN_ITEM)
1212 const_iv (JOIN_NOSORT)
1213 const_iv (RMW)
1214
1215 const_iv (NOTFOUND)
1216 const_iv (KEYEMPTY)
1217 const_iv (LOCK_DEADLOCK)
1218 const_iv (LOCK_NOTGRANTED)
1219 const_iv (RUNRECOVERY)
1220 const_iv (OLD_VERSION)
1221 const_iv (REP_HANDLE_DEAD)
1222 const_iv (SECONDARY_BAD)
1223
1224 const_iv (APPEND)
1225 const_iv (NODUPDATA)
1226 const_iv (NOOVERWRITE)
1227
1228 const_iv (TXN_NOWAIT)
1229 const_iv (TXN_SYNC)
1230
1231 const_iv (SET_LOCK_TIMEOUT)
1232 const_iv (SET_TXN_TIMEOUT)
1233
1234 const_iv (FIRST)
1235 const_iv (NEXT)
1236 const_iv (NEXT_DUP)
1237 const_iv (NEXT_NODUP)
1238 const_iv (PREV)
1239 const_iv (PREV_NODUP)
1240 const_iv (SET)
1241 const_iv (SET_RANGE)
1242 const_iv (LAST)
1243 const_iv (BEFORE)
1244 const_iv (AFTER)
1245 const_iv (CURRENT)
1246 const_iv (KEYFIRST)
1247 const_iv (KEYLAST)
1248 const_iv (NODUPDATA)
1249
1250 const_iv (FORCE)
1251
1252 const_iv (LOCK_DEFAULT)
1253 const_iv (LOCK_EXPIRE)
1254 const_iv (LOCK_MAXLOCKS)
1255 const_iv (LOCK_MINLOCKS)
1256 const_iv (LOCK_MINWRITE)
1257 const_iv (LOCK_OLDEST)
1258 const_iv (LOCK_RANDOM)
1259 const_iv (LOCK_YOUNGEST)
1260
1261 const_iv (DONOTINDEX)
1262 const_iv (KEYEMPTY )
1263 const_iv (KEYEXIST )
1264 const_iv (LOCK_DEADLOCK)
1265 const_iv (LOCK_NOTGRANTED)
1266 const_iv (NOSERVER)
1267 const_iv (NOSERVER_HOME)
1268 const_iv (NOSERVER_ID)
1269 const_iv (NOTFOUND)
1270 const_iv (PAGE_NOTFOUND)
1271 const_iv (REP_DUPMASTER)
1272 const_iv (REP_HANDLE_DEAD)
1273 const_iv (REP_HOLDELECTION)
1274 const_iv (REP_ISPERM)
1275 const_iv (REP_NEWMASTER)
1276 const_iv (REP_NEWSITE)
1277 const_iv (REP_NOTPERM)
1278 const_iv (REP_UNAVAIL)
1279 const_iv (RUNRECOVERY)
1280 const_iv (SECONDARY_BAD)
1281 const_iv (VERIFY_BAD)
1282
1283 const_iv (VERB_DEADLOCK)
1284 const_iv (VERB_RECOVERY)
1285 const_iv (VERB_REPLICATION)
1286 const_iv (VERB_WAITSFOR)
1287
1288 const_iv (VERSION_MAJOR)
1289 const_iv (VERSION_MINOR)
1290 const_iv (VERSION_PATCH)
1291 #if DB_VERSION_MINOR >= 3
1292 const_iv (INORDER)
1293 const_iv (LOCK_MAXWRITE)
1294 const_iv (SEQ_DEC)
1295 const_iv (SEQ_INC)
1296 const_iv (SEQ_WRAP)
1297 const_iv (BUFFER_SMALL)
1298 const_iv (LOG_BUFFER_FULL)
1299 const_iv (VERSION_MISMATCH)
1300 #endif
1301 #if DB_VERSION_MINOR >= 4
1302 const_iv (REGISTER)
1303 const_iv (DSYNC_DB)
1304 const_iv (READ_COMMITTED)
1305 const_iv (READ_UNCOMMITTED)
1306 const_iv (REP_IGNORE)
1307 const_iv (REP_LOCKOUT)
1308 const_iv (REP_JOIN_FAILURE)
1309 const_iv (FREE_SPACE)
1310 const_iv (FREELIST_ONLY)
1311 const_iv (VERB_REGISTER)
1312 #endif
1313 #if DB_VERSION_MINOR >= 5
1314 const_iv (MULTIVERSION)
1315 const_iv (TXN_SNAPSHOT)
1316 #endif
1317 #if DB_VERSION_MINOR >= 6
1318 const_iv (PREV_DUP)
1319 const_iv (PRIORITY_UNCHANGED)
1320 const_iv (PRIORITY_VERY_LOW)
1321 const_iv (PRIORITY_LOW)
1322 const_iv (PRIORITY_DEFAULT)
1323 const_iv (PRIORITY_HIGH)
1324 const_iv (PRIORITY_VERY_HIGH)
1325 #endif
1326 #if DB_VERSION_MINOR >= 7
1327 const_iv (LOG_DIRECT)
1328 const_iv (LOG_DSYNC)
1329 const_iv (LOG_AUTO_REMOVE)
1330 const_iv (LOG_IN_MEMORY)
1331 const_iv (LOG_ZERO)
1332 #else
1333 const_iv (DIRECT_LOG)
1334 const_iv (LOG_AUTOREMOVE)
1335 # if DB_VERSION_MINOR >= 3
1336 const_iv (DSYNC_LOG)
1337 const_iv (LOG_INMEMORY)
1338 # endif
1339 #endif
1340 };
1341
1342 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1343 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1344
1345 prepare_cb = &PL_sv_undef;
1346
1347 {
1348 /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1349 char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1350
1351 newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1352 }
1353
1354 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1355
1356 create_respipe ();
1357
1358 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1359 patch_errno ();
1360 }
1361
1362 void
1363 max_poll_reqs (int nreqs)
1364 PROTOTYPE: $
1365 CODE:
1366 max_poll_reqs = nreqs;
1367
1368 void
1369 max_poll_time (double nseconds)
1370 PROTOTYPE: $
1371 CODE:
1372 max_poll_time = nseconds * AIO_TICKS;
1373
1374 void
1375 min_parallel (int nthreads)
1376 PROTOTYPE: $
1377
1378 void
1379 max_parallel (int nthreads)
1380 PROTOTYPE: $
1381
1382 void
1383 max_idle (int nthreads)
1384 PROTOTYPE: $
1385 CODE:
1386 set_max_idle (nthreads);
1387
1388 int
1389 max_outstanding (int maxreqs)
1390 PROTOTYPE: $
1391 CODE:
1392 RETVAL = max_outstanding;
1393 max_outstanding = maxreqs;
1394 OUTPUT:
1395 RETVAL
1396
1397 int
1398 dbreq_pri (int pri = 0)
1399 PROTOTYPE: ;$
1400 CODE:
1401 RETVAL = next_pri - PRI_BIAS;
1402 if (items > 0)
1403 {
1404 if (pri < PRI_MIN) pri = PRI_MIN;
1405 if (pri > PRI_MAX) pri = PRI_MAX;
1406 next_pri = pri + PRI_BIAS;
1407 }
1408 OUTPUT:
1409 RETVAL
1410
1411 void
1412 dbreq_nice (int nice = 0)
1413 CODE:
1414 nice = next_pri - nice;
1415 if (nice < PRI_MIN) nice = PRI_MIN;
1416 if (nice > PRI_MAX) nice = PRI_MAX;
1417 next_pri = nice + PRI_BIAS;
1418
1419 void
1420 flush ()
1421 PROTOTYPE:
1422 CODE:
1423 while (nreqs)
1424 {
1425 poll_wait ();
1426 poll_cb ();
1427 }
1428
1429 int
1430 poll ()
1431 PROTOTYPE:
1432 CODE:
1433 poll_wait ();
1434 RETVAL = poll_cb ();
1435 OUTPUT:
1436 RETVAL
1437
1438 int
1439 poll_fileno ()
1440 PROTOTYPE:
1441 CODE:
1442 RETVAL = respipe [0];
1443 OUTPUT:
1444 RETVAL
1445
1446 int
1447 poll_cb (...)
1448 PROTOTYPE:
1449 CODE:
1450 RETVAL = poll_cb ();
1451 OUTPUT:
1452 RETVAL
1453
1454 void
1455 poll_wait ()
1456 PROTOTYPE:
1457 CODE:
1458 poll_wait ();
1459
1460 int
1461 nreqs ()
1462 PROTOTYPE:
1463 CODE:
1464 RETVAL = nreqs;
1465 OUTPUT:
1466 RETVAL
1467
1468 int
1469 nready ()
1470 PROTOTYPE:
1471 CODE:
1472 RETVAL = get_nready ();
1473 OUTPUT:
1474 RETVAL
1475
1476 int
1477 npending ()
1478 PROTOTYPE:
1479 CODE:
1480 RETVAL = get_npending ();
1481 OUTPUT:
1482 RETVAL
1483
1484 int
1485 nthreads ()
1486 PROTOTYPE:
1487 CODE:
1488 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1489 RETVAL = started;
1490 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1491 OUTPUT:
1492 RETVAL
1493
1494 SV *
1495 set_sync_prepare (SV *cb)
1496 PROTOTYPE: &
1497 CODE:
1498 RETVAL = prepare_cb;
1499 prepare_cb = newSVsv (cb);
1500 OUTPUT:
1501 RETVAL
1502
1503 char *
1504 strerror (int errorno = errno)
1505 PROTOTYPE: ;$
1506 CODE:
1507 RETVAL = db_strerror (errorno);
1508 OUTPUT:
1509 RETVAL
1510
1511 void _on_next_submit (SV *cb)
1512 CODE:
1513 SvREFCNT_dec (on_next_submit);
1514 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1515
1516 DB_ENV *
1517 db_env_create (U32 env_flags = 0)
1518 CODE:
1519 {
1520 errno = db_env_create (&RETVAL, env_flags);
1521 if (errno)
1522 croak ("db_env_create: %s", db_strerror (errno));
1523
1524 if (0)
1525 {
1526 RETVAL->set_errcall (RETVAL, debug_errcall);
1527 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1528 }
1529 }
1530 OUTPUT:
1531 RETVAL
1532
1533 void
1534 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1535 PREINIT:
1536 CALLBACK
1537 CODE:
1538 {
1539 dREQ (REQ_ENV_OPEN, 1);
1540 req->env = env;
1541 req->uint1 = open_flags | DB_THREAD;
1542 req->int1 = mode;
1543 req->buf1 = strdup_ornull (db_home);
1544 REQ_SEND;
1545 }
1546
1547 void
1548 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1549 PREINIT:
1550 CALLBACK
1551 CODE:
1552 {
1553 dREQ (REQ_ENV_CLOSE, 0);
1554 ptr_nuke (ST (0));
1555 req->env = env;
1556 req->uint1 = flags;
1557 REQ_SEND;
1558 }
1559
1560 void
1561 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1562 PREINIT:
1563 CALLBACK
1564 CODE:
1565 {
1566 dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
1567 req->env = env;
1568 req->uint1 = kbyte;
1569 req->int1 = min;
1570 req->uint2 = flags;
1571 REQ_SEND;
1572 }
1573
1574 void
1575 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1576 PREINIT:
1577 CALLBACK
1578 CODE:
1579 {
1580 dREQ (REQ_ENV_LOCK_DETECT, 1);
1581 req->env = env;
1582 req->uint1 = flags;
1583 req->uint2 = atype;
1584 /* req->int2 = 0; dummy */
1585 REQ_SEND;
1586 }
1587
1588 void
1589 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1590 PREINIT:
1591 CALLBACK
1592 CODE:
1593 {
1594 dREQ (REQ_ENV_MEMP_SYNC, 1);
1595 req->env = env;
1596 REQ_SEND;
1597 }
1598
1599 void
1600 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1601 PREINIT:
1602 CALLBACK
1603 CODE:
1604 {
1605 dREQ (REQ_ENV_MEMP_TRICKLE, 1);
1606 req->env = env;
1607 req->int1 = percent;
1608 REQ_SEND;
1609 }
1610
1611 void
1612 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1613 PREINIT:
1614 CALLBACK
1615 CODE:
1616 {
1617 dREQ (REQ_ENV_DBREMOVE, 2);
1618 req->env = env;
1619 req->buf1 = strdup_ornull (file);
1620 req->buf2 = strdup_ornull (database);
1621 req->uint1 = flags;
1622 REQ_SEND;
1623 }
1624
1625 void
1626 db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
1627 PREINIT:
1628 CALLBACK
1629 CODE:
1630 {
1631 dREQ (REQ_ENV_DBRENAME, 2);
1632 req->env = env;
1633 req->buf1 = strdup_ornull (file);
1634 req->buf2 = strdup_ornull (database);
1635 req->buf3 = strdup_ornull (newname);
1636 req->uint1 = flags;
1637 REQ_SEND;
1638 }
1639
1640 DB *
1641 db_create (DB_ENV *env = 0, U32 flags = 0)
1642 CODE:
1643 {
1644 errno = db_create (&RETVAL, env, flags);
1645 if (errno)
1646 croak ("db_create: %s", db_strerror (errno));
1647
1648 if (RETVAL)
1649 RETVAL->app_private = (void *)newSVsv (ST (0));
1650 }
1651 OUTPUT:
1652 RETVAL
1653
1654 void
1655 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1656 PREINIT:
1657 CALLBACK
1658 CODE:
1659 {
1660 dREQ (REQ_DB_OPEN, 2);
1661 req->db = db;
1662 req->txn = txnid;
1663 req->buf1 = strdup_ornull (file);
1664 req->buf2 = strdup_ornull (database);
1665 req->int1 = type;
1666 req->uint1 = flags | DB_THREAD;
1667 req->int2 = mode;
1668 REQ_SEND;
1669 }
1670
1671 void
1672 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1673 PREINIT:
1674 CALLBACK
1675 CODE:
1676 {
1677 dREQ (REQ_DB_CLOSE, 0);
1678 ptr_nuke (ST (0));
1679 req->db = db;
1680 req->uint1 = flags;
1681 req->sv1 = (SV *)db->app_private;
1682 REQ_SEND;
1683 }
1684
1685 #if DB_VERSION_MINOR >= 4
1686
1687 void
1688 db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = 0)
1689 PREINIT:
1690 CALLBACK
1691 CODE:
1692 {
1693 dREQ (REQ_DB_COMPACT, 2);
1694 req->db = db;
1695 req->txn = txn;
1696 sv_to_dbt (&req->dbt1, start);
1697 sv_to_dbt (&req->dbt2, stop);
1698 req->uint1 = flags;
1699 REQ_SEND;
1700 }
1701
1702 #endif
1703
1704 void
1705 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1706 PREINIT:
1707 CALLBACK
1708 CODE:
1709 {
1710 dREQ (REQ_DB_SYNC, 1);
1711 req->db = db;
1712 req->uint1 = flags;
1713 REQ_SEND;
1714 }
1715
1716 void
1717 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1718 PREINIT:
1719 CALLBACK
1720 CODE:
1721 {
1722 dREQ (REQ_DB_SYNC, 1);
1723 req->db = db;
1724 req->buf1 = strdup (file);
1725 req->uint1 = flags;
1726 REQ_SEND;
1727 }
1728
1729 void
1730 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
1731 PREINIT:
1732 CALLBACK
1733 CODE:
1734 {
1735 dREQ (REQ_DB_KEY_RANGE, 2);
1736 req->db = db;
1737 req->txn = txn;
1738 sv_to_dbt (&req->dbt1, key);
1739 req->uint1 = flags;
1740 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1741 REQ_SEND;
1742 }
1743
1744 void
1745 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1746 PREINIT:
1747 CALLBACK
1748 CODE:
1749 {
1750 dREQ (REQ_DB_PUT, 2);
1751 req->db = db;
1752 req->txn = txn;
1753 sv_to_dbt (&req->dbt1, key);
1754 sv_to_dbt (&req->dbt2, data);
1755 req->uint1 = flags;
1756 REQ_SEND;
1757 }
1758
1759 #if DB_VERSION_MINOR >= 6
1760
1761 void
1762 db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1763 PREINIT:
1764 CALLBACK
1765 CODE:
1766 {
1767 dREQ (REQ_DB_EXISTS, 2);
1768 req->db = db;
1769 req->txn = txn;
1770 req->uint1 = flags;
1771 sv_to_dbt (&req->dbt1, key);
1772 REQ_SEND;
1773 }
1774
1775 #endif
1776
1777 void
1778 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1779 PREINIT:
1780 CALLBACK
1781 CODE:
1782 {
1783 //TODO: key is somtimesmutable
1784 dREQ (REQ_DB_GET, 2);
1785 req->db = db;
1786 req->txn = txn;
1787 req->uint1 = flags;
1788 sv_to_dbt (&req->dbt1, key);
1789 req->dbt3.flags = DB_DBT_MALLOC;
1790 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1791 REQ_SEND;
1792 }
1793
1794 void
1795 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1796 PREINIT:
1797 CALLBACK
1798 CODE:
1799 {
1800 //TODO: key is somtimesmutable
1801 dREQ (REQ_DB_PGET, 2);
1802 req->db = db;
1803 req->txn = txn;
1804 req->uint1 = flags;
1805
1806 sv_to_dbt (&req->dbt1, key);
1807
1808 req->dbt2.flags = DB_DBT_MALLOC;
1809 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1810
1811 req->dbt3.flags = DB_DBT_MALLOC;
1812 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1813 REQ_SEND;
1814 }
1815
1816 void
1817 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1818 PREINIT:
1819 CALLBACK
1820 CODE:
1821 {
1822 dREQ (REQ_DB_DEL, 2);
1823 req->db = db;
1824 req->txn = txn;
1825 req->uint1 = flags;
1826 sv_to_dbt (&req->dbt1, key);
1827 REQ_SEND;
1828 }
1829
1830 void
1831 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1832 PREINIT:
1833 CALLBACK
1834 CODE:
1835 {
1836 dREQ (REQ_TXN_COMMIT, 0);
1837 ptr_nuke (ST (0));
1838 req->txn = txn;
1839 req->uint1 = flags;
1840 REQ_SEND;
1841 }
1842
1843 void
1844 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1845 PREINIT:
1846 CALLBACK
1847 CODE:
1848 {
1849 dREQ (REQ_TXN_ABORT, 0);
1850 ptr_nuke (ST (0));
1851 req->txn = txn;
1852 REQ_SEND;
1853 }
1854
1855 void
1856 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1857 PREINIT:
1858 CALLBACK
1859 CODE:
1860 {
1861 dREQ (REQ_TXN_FINISH, 0);
1862 ptr_nuke (ST (0));
1863 req->txn = txn;
1864 req->uint1 = flags;
1865 REQ_SEND;
1866 }
1867
1868 void
1869 db_c_close (DBC *dbc, SV *callback = 0)
1870 PREINIT:
1871 CALLBACK
1872 CODE:
1873 {
1874 dREQ (REQ_C_CLOSE, 0);
1875 ptr_nuke (ST (0));
1876 req->dbc = dbc;
1877 REQ_SEND;
1878 }
1879
1880 void
1881 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1882 PREINIT:
1883 CALLBACK
1884 CODE:
1885 {
1886 dREQ (REQ_C_COUNT, 1);
1887 req->dbc = dbc;
1888 req->sv1 = SvREFCNT_inc (count);
1889 REQ_SEND;
1890 }
1891
1892 void
1893 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1894 PREINIT:
1895 CALLBACK
1896 CODE:
1897 {
1898 dREQ (REQ_C_PUT, 1);
1899 req->dbc = dbc;
1900 sv_to_dbt (&req->dbt1, key);
1901 sv_to_dbt (&req->dbt2, data);
1902 req->uint1 = flags;
1903 REQ_SEND;
1904 }
1905
1906 void
1907 db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1908 PREINIT:
1909 CALLBACK
1910 CODE:
1911 {
1912 if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
1913 croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
1914 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
1915 croak ("argument \"%s\" must be byte/octet-encoded in %s",
1916 "key",
1917 "BDB::db_c_get");
1918
1919 {
1920 dREQ (REQ_C_GET, 1);
1921 req->dbc = dbc;
1922 req->uint1 = flags;
1923 if (flags & DB_OPFLAGS_MASK == DB_SET)
1924 sv_to_dbt (&req->dbt1, key);
1925 else
1926 {
1927 if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
1928 sv_to_dbt (&req->dbt1, key);
1929 else
1930 req->dbt1.flags = DB_DBT_MALLOC;
1931
1932 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1933 }
1934
1935 if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
1936 || flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
1937 sv_to_dbt (&req->dbt3, data);
1938 else
1939 req->dbt3.flags = DB_DBT_MALLOC;
1940
1941 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1942 REQ_SEND;
1943 }
1944 }
1945
1946 void
1947 db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1948 PREINIT:
1949 CALLBACK
1950 CODE:
1951 {
1952 if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
1953 croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
1954 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
1955 croak ("argument \"%s\" must be byte/octet-encoded in %s",
1956 "key",
1957 "BDB::db_c_pget");
1958
1959 {
1960 dREQ (REQ_C_PGET, 1);
1961 req->dbc = dbc;
1962 req->uint1 = flags;
1963 if (flags & DB_OPFLAGS_MASK == DB_SET)
1964 sv_to_dbt (&req->dbt1, key);
1965 else
1966 {
1967 if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
1968 sv_to_dbt (&req->dbt1, key);
1969 else
1970 req->dbt1.flags = DB_DBT_MALLOC;
1971
1972 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1973 }
1974
1975 req->dbt2.flags = DB_DBT_MALLOC;
1976 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1977
1978 if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
1979 || flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
1980 sv_to_dbt (&req->dbt3, data);
1981 else
1982 req->dbt3.flags = DB_DBT_MALLOC;
1983
1984 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1985 REQ_SEND;
1986 }
1987 }
1988
1989 void
1990 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
1991 PREINIT:
1992 CALLBACK
1993 CODE:
1994 {
1995 dREQ (REQ_C_DEL, 1);
1996 req->dbc = dbc;
1997 req->uint1 = flags;
1998 REQ_SEND;
1999 }
2000
2001
2002 #if DB_VERSION_MINOR >= 3
2003
2004 void
2005 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
2006 PREINIT:
2007 CALLBACK
2008 CODE:
2009 {
2010 dREQ (REQ_SEQ_OPEN, 2);
2011 req->seq = seq;
2012 req->txn = txnid;
2013 req->uint1 = flags | DB_THREAD;
2014 sv_to_dbt (&req->dbt1, key);
2015 REQ_SEND;
2016 }
2017
2018 void
2019 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
2020 PREINIT:
2021 CALLBACK
2022 CODE:
2023 {
2024 dREQ (REQ_SEQ_CLOSE, 0);
2025 ptr_nuke (ST (0));
2026 req->seq = seq;
2027 req->uint1 = flags;
2028 REQ_SEND;
2029 }
2030
2031 void
2032 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
2033 PREINIT:
2034 CALLBACK
2035 CODE:
2036 {
2037 dREQ (REQ_SEQ_GET, 2);
2038 req->seq = seq;
2039 req->txn = txnid;
2040 req->int1 = delta;
2041 req->uint1 = flags;
2042 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
2043 REQ_SEND;
2044 }
2045
2046 void
2047 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
2048 PREINIT:
2049 CALLBACK
2050 CODE:
2051 {
2052 dREQ (REQ_SEQ_REMOVE, 2);
2053 req->seq = seq;
2054 req->txn = txnid;
2055 req->uint1 = flags;
2056 REQ_SEND;
2057 }
2058
2059 #endif
2060
2061
2062 MODULE = BDB PACKAGE = BDB::Env
2063
2064 void
2065 DESTROY (DB_ENV_ornuked *env)
2066 CODE:
2067 if (env)
2068 env->close (env, 0);
2069
2070 int set_data_dir (DB_ENV *env, const char *dir)
2071 CODE:
2072 RETVAL = env->set_data_dir (env, dir);
2073 OUTPUT:
2074 RETVAL
2075
2076 int set_tmp_dir (DB_ENV *env, const char *dir)
2077 CODE:
2078 RETVAL = env->set_tmp_dir (env, dir);
2079 OUTPUT:
2080 RETVAL
2081
2082 int set_lg_dir (DB_ENV *env, const char *dir)
2083 CODE:
2084 RETVAL = env->set_lg_dir (env, dir);
2085 OUTPUT:
2086 RETVAL
2087
2088 int set_shm_key (DB_ENV *env, long shm_key)
2089 CODE:
2090 RETVAL = env->set_shm_key (env, shm_key);
2091 OUTPUT:
2092 RETVAL
2093
2094 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
2095 CODE:
2096 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
2097 OUTPUT:
2098 RETVAL
2099
2100 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
2101 CODE:
2102 RETVAL = env->set_flags (env, flags, onoff);
2103 OUTPUT:
2104 RETVAL
2105
2106 #if DB_VERSION_MINOR >= 7
2107
2108 int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
2109 CODE:
2110 RETVAL = env->set_intermediate_dir_mode (env, mode);
2111 OUTPUT:
2112 RETVAL
2113
2114 int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
2115 CODE:
2116 RETVAL = env->log_set_config (env, flags, onoff);
2117 OUTPUT:
2118 RETVAL
2119
2120 #endif
2121
2122
2123 void set_errfile (DB_ENV *env, FILE *errfile = 0)
2124 CODE:
2125 env->set_errfile (env, errfile);
2126
2127 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
2128 CODE:
2129 env->set_msgfile (env, msgfile);
2130
2131 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2132 CODE:
2133 RETVAL = env->set_verbose (env, which, onoff);
2134 OUTPUT:
2135 RETVAL
2136
2137 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2138 CODE:
2139 RETVAL = env->set_encrypt (env, password, flags);
2140 OUTPUT:
2141 RETVAL
2142
2143 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2144 CODE:
2145 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2146 OUTPUT:
2147 RETVAL
2148
2149 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2150 CODE:
2151 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2152 OUTPUT:
2153 RETVAL
2154
2155 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2156 CODE:
2157 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2158 OUTPUT:
2159 RETVAL
2160
2161 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2162 CODE:
2163 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2164 OUTPUT:
2165 RETVAL
2166
2167 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2168 CODE:
2169 RETVAL = env->set_lk_detect (env, detect);
2170 OUTPUT:
2171 RETVAL
2172
2173 int set_lk_max_lockers (DB_ENV *env, U32 max)
2174 CODE:
2175 RETVAL = env->set_lk_max_lockers (env, max);
2176 OUTPUT:
2177 RETVAL
2178
2179 int set_lk_max_locks (DB_ENV *env, U32 max)
2180 CODE:
2181 RETVAL = env->set_lk_max_locks (env, max);
2182 OUTPUT:
2183 RETVAL
2184
2185 int set_lk_max_objects (DB_ENV *env, U32 max)
2186 CODE:
2187 RETVAL = env->set_lk_max_objects (env, max);
2188 OUTPUT:
2189 RETVAL
2190
2191 int set_lg_bsize (DB_ENV *env, U32 max)
2192 CODE:
2193 RETVAL = env->set_lg_bsize (env, max);
2194 OUTPUT:
2195 RETVAL
2196
2197 int set_lg_max (DB_ENV *env, U32 max)
2198 CODE:
2199 RETVAL = env->set_lg_max (env, max);
2200 OUTPUT:
2201 RETVAL
2202
2203 #if DB_VERSION_MINOR >= 4
2204
2205 int mutex_set_max (DB_ENV *env, U32 max)
2206 CODE:
2207 RETVAL = env->mutex_set_max (env, max);
2208 OUTPUT:
2209 RETVAL
2210
2211 int mutex_set_increment (DB_ENV *env, U32 increment)
2212 CODE:
2213 RETVAL = env->mutex_set_increment (env, increment);
2214 OUTPUT:
2215 RETVAL
2216
2217 int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2218 CODE:
2219 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2220 OUTPUT:
2221 RETVAL
2222
2223 int mutex_set_align (DB_ENV *env, U32 align)
2224 CODE:
2225 RETVAL = env->mutex_set_align (env, align);
2226 OUTPUT:
2227 RETVAL
2228
2229 #endif
2230
2231 DB_TXN *
2232 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2233 CODE:
2234 errno = env->txn_begin (env, parent, &RETVAL, flags);
2235 if (errno)
2236 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2237 OUTPUT:
2238 RETVAL
2239
2240 #if DB_VERSION_MINOR >= 5
2241
2242 DB_TXN *
2243 cdsgroup_begin (DB_ENV *env)
2244 CODE:
2245 errno = env->cdsgroup_begin (env, &RETVAL);
2246 if (errno)
2247 croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
2248 OUTPUT:
2249 RETVAL
2250
2251 #endif
2252
2253 MODULE = BDB PACKAGE = BDB::Db
2254
2255 void
2256 DESTROY (DB_ornuked *db)
2257 CODE:
2258 if (db)
2259 {
2260 SV *env = (SV *)db->app_private;
2261 db->close (db, 0);
2262 SvREFCNT_dec (env);
2263 }
2264
2265 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2266 CODE:
2267 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2268 OUTPUT:
2269 RETVAL
2270
2271 int set_pagesize (DB *db, U32 pagesize)
2272 CODE:
2273 RETVAL = db->set_pagesize (db, pagesize);
2274 OUTPUT:
2275 RETVAL
2276
2277 int set_flags (DB *db, U32 flags)
2278 CODE:
2279 RETVAL = db->set_flags (db, flags);
2280 OUTPUT:
2281 RETVAL
2282
2283 int set_encrypt (DB *db, const char *password, U32 flags)
2284 CODE:
2285 RETVAL = db->set_encrypt (db, password, flags);
2286 OUTPUT:
2287 RETVAL
2288
2289 int set_lorder (DB *db, int lorder)
2290 CODE:
2291 RETVAL = db->set_lorder (db, lorder);
2292 OUTPUT:
2293 RETVAL
2294
2295 int set_bt_minkey (DB *db, U32 minkey)
2296 CODE:
2297 RETVAL = db->set_bt_minkey (db, minkey);
2298 OUTPUT:
2299 RETVAL
2300
2301 int set_re_delim (DB *db, int delim)
2302 CODE:
2303 RETVAL = db->set_re_delim (db, delim);
2304 OUTPUT:
2305 RETVAL
2306
2307 int set_re_pad (DB *db, int re_pad)
2308 CODE:
2309 RETVAL = db->set_re_pad (db, re_pad);
2310 OUTPUT:
2311 RETVAL
2312
2313 int set_re_source (DB *db, char *source)
2314 CODE:
2315 RETVAL = db->set_re_source (db, source);
2316 OUTPUT:
2317 RETVAL
2318
2319 int set_re_len (DB *db, U32 re_len)
2320 CODE:
2321 RETVAL = db->set_re_len (db, re_len);
2322 OUTPUT:
2323 RETVAL
2324
2325 int set_h_ffactor (DB *db, U32 h_ffactor)
2326 CODE:
2327 RETVAL = db->set_h_ffactor (db, h_ffactor);
2328 OUTPUT:
2329 RETVAL
2330
2331 int set_h_nelem (DB *db, U32 h_nelem)
2332 CODE:
2333 RETVAL = db->set_h_nelem (db, h_nelem);
2334 OUTPUT:
2335 RETVAL
2336
2337 int set_q_extentsize (DB *db, U32 extentsize)
2338 CODE:
2339 RETVAL = db->set_q_extentsize (db, extentsize);
2340 OUTPUT:
2341 RETVAL
2342
2343 DBC *
2344 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2345 CODE:
2346 errno = db->cursor (db, txn, &RETVAL, flags);
2347 if (errno)
2348 croak ("DB->cursor: %s", db_strerror (errno));
2349 OUTPUT:
2350 RETVAL
2351
2352 #if DB_VERSION_MINOR >= 3
2353
2354 DB_SEQUENCE *
2355 sequence (DB *db, U32 flags = 0)
2356 CODE:
2357 {
2358 errno = db_sequence_create (&RETVAL, db, flags);
2359 if (errno)
2360 croak ("db_sequence_create: %s", db_strerror (errno));
2361 }
2362 OUTPUT:
2363 RETVAL
2364
2365 #endif
2366
2367
2368 MODULE = BDB PACKAGE = BDB::Txn
2369
2370 void
2371 DESTROY (DB_TXN_ornuked *txn)
2372 CODE:
2373 if (txn)
2374 txn->abort (txn);
2375
2376 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2377 CODE:
2378 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2379 OUTPUT:
2380 RETVAL
2381
2382 int failed (DB_TXN *txn)
2383 CODE:
2384 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2385 OUTPUT:
2386 RETVAL
2387
2388
2389 MODULE = BDB PACKAGE = BDB::Cursor
2390
2391 void
2392 DESTROY (DBC_ornuked *dbc)
2393 CODE:
2394 if (dbc)
2395 dbc->c_close (dbc);
2396
2397 #if DB_VERSION_MINOR >= 6
2398
2399 int set_priority (DBC *dbc, int priority)
2400 CODE:
2401 dbc->set_priority (dbc, priority);
2402
2403 #endif
2404
2405 #if DB_VERSION_MINOR >= 3
2406
2407 MODULE = BDB PACKAGE = BDB::Sequence
2408
2409 void
2410 DESTROY (DB_SEQUENCE_ornuked *seq)
2411 CODE:
2412 if (seq)
2413 seq->close (seq, 0);
2414
2415 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2416 CODE:
2417 RETVAL = seq->initial_value (seq, value);
2418 OUTPUT:
2419 RETVAL
2420
2421 int set_cachesize (DB_SEQUENCE *seq, U32 size)
2422 CODE:
2423 RETVAL = seq->set_cachesize (seq, size);
2424 OUTPUT:
2425 RETVAL
2426
2427 int set_flags (DB_SEQUENCE *seq, U32 flags)
2428 CODE:
2429 RETVAL = seq->set_flags (seq, flags);
2430 OUTPUT:
2431 RETVAL
2432
2433 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2434 CODE:
2435 RETVAL = seq->set_range (seq, min, max);
2436 OUTPUT:
2437 RETVAL
2438
2439 #endif
2440
2441