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/cvs/BDB/BDB.xs
Revision: 1.54
Committed: Fri Sep 26 02:03:48 2008 UTC (15 years, 7 months ago) by root
Branch: MAIN
Changes since 1.53: +65 -50 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include <sys/user.h>
2 #include <sys/ptrace.h>
3
4 #define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
5
6 #include "xthread.h"
7
8 #include <errno.h>
9
10 #include "EXTERN.h"
11 #include "perl.h"
12 #include "XSUB.h"
13
14 // perl stupidly defines these as macros, breaking
15 // lots and lots of code.
16 #undef open
17 #undef close
18 #undef abort
19 #undef malloc
20 #undef free
21 #undef send
22
23 #include <stddef.h>
24 #include <stdlib.h>
25 #include <errno.h>
26 #include <sys/types.h>
27 #include <limits.h>
28 #include <fcntl.h>
29
30 #ifndef _WIN32
31 # include <sys/time.h>
32 # include <unistd.h>
33 #endif
34
35 #include <db.h>
36
37 #if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
38 # error you need Berkeley DB 4.3 or a newer 4.x version installed
39 #endif
40
41 /* number of seconds after which idle threads exit */
42 #define IDLE_TIMEOUT 10
43
44 typedef SV SV_mutable;
45
46 typedef DB_ENV DB_ENV_ornull;
47 typedef DB_TXN DB_TXN_ornull;
48 typedef DBC DBC_ornull;
49 typedef DB DB_ornull;
50
51 typedef DB_ENV DB_ENV_ornuked;
52 typedef DB_TXN DB_TXN_ornuked;
53 typedef DBC DBC_ornuked;
54 typedef DB DB_ornuked;
55
56 #if DB_VERSION_MINOR >= 3
57 typedef DB_SEQUENCE DB_SEQUENCE_ornull;
58 typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
59 #endif
60
61 typedef SV SV8; /* byte-sv, used for argument-checking */
62 typedef char *bdb_filename;
63
64 static SV *prepare_cb;
65
66 #if DB_VERSION_MINOR >= 6
67 # define c_close close
68 # define c_count count
69 # define c_del del
70 # define c_dup dup
71 # define c_get get
72 # define c_pget pget
73 # define c_put put
74 #endif
75
76 static char *
77 get_bdb_filename (SV *sv)
78 {
79 if (!SvOK (sv))
80 return 0;
81
82 #if _WIN32
83 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
84 {
85 STRLEN len;
86 char *src = SvPVbyte (sv, len);
87 SV *t1 = sv_newmortal ();
88 SV *t2 = sv_newmortal ();
89
90 sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
91 sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
92
93 len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
94 len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
95 SvPOK_only (t2);
96 SvPVX (t2)[len] = 0;
97 SvCUR_set (t2, len);
98
99 return SvPVX (t2);
100 }
101 #else
102 return SvPVbyte_nolen (sv);
103 #endif
104 }
105
106 static void
107 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
108 {
109 printf ("err[%s]\n", msg);
110 }
111
112 static void
113 debug_msgcall (const DB_ENV *dbenv, const char *msg)
114 {
115 printf ("msg[%s]\n", msg);
116 }
117
118 static char *
119 strdup_ornull (const char *s)
120 {
121 return s ? strdup (s) : 0;
122 }
123
124 static void
125 sv_to_dbt (DBT *dbt, SV *sv)
126 {
127 STRLEN len;
128 char *data = SvPVbyte (sv, len);
129
130 dbt->data = malloc (len);
131 memcpy (dbt->data, data, len);
132 dbt->size = len;
133 dbt->flags = DB_DBT_REALLOC;
134 }
135
136 static void
137 dbt_to_sv (SV *sv, DBT *dbt)
138 {
139 if (sv)
140 {
141 SvREADONLY_off (sv);
142 sv_setsv_mg (sv, dbt->data ? newSVpvn (dbt->data, dbt->size) : &PL_sv_undef);
143 SvREFCNT_dec (sv);
144 }
145
146 if (dbt->flags & DB_DBT_MALLOC)
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 static void req_cancel (bdb_req req);
355
356 static int req_invoke (bdb_req req)
357 {
358 switch (req->type)
359 {
360 case REQ_DB_CLOSE:
361 SvREFCNT_dec (req->sv1);
362 break;
363
364 case REQ_DB_GET:
365 case REQ_DB_PGET:
366 case REQ_C_GET:
367 case REQ_C_PGET:
368 case REQ_DB_PUT:
369 case REQ_C_PUT:
370 dbt_to_sv (req->sv1, &req->dbt1);
371 dbt_to_sv (req->sv2, &req->dbt2);
372 dbt_to_sv (req->sv3, &req->dbt3);
373 break;
374
375 case REQ_DB_KEY_RANGE:
376 {
377 AV *av = newAV ();
378
379 av_push (av, newSVnv (req->key_range.less));
380 av_push (av, newSVnv (req->key_range.equal));
381 av_push (av, newSVnv (req->key_range.greater));
382
383 SvREADONLY_off (req->sv1);
384 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
385 SvREFCNT_dec (req->sv1);
386 }
387 break;
388
389 #if DB_VERSION_MINOR >= 3
390 case REQ_SEQ_GET:
391 SvREADONLY_off (req->sv1);
392
393 if (sizeof (IV) > 4)
394 sv_setiv_mg (req->sv1, (IV)req->seq_t);
395 else
396 sv_setnv_mg (req->sv1, (NV)req->seq_t);
397
398 SvREFCNT_dec (req->sv1);
399 break;
400 #endif
401 }
402
403 errno = req->result;
404
405 if (req->callback)
406 {
407 dSP;
408
409 ENTER;
410 SAVETMPS;
411 PUSHMARK (SP);
412
413 PUTBACK;
414 call_sv (req->callback, G_VOID | G_EVAL);
415 SPAGAIN;
416
417 FREETMPS;
418 LEAVE;
419
420 return !SvTRUE (ERRSV);
421 }
422
423 return 1;
424 }
425
426 static void req_free (bdb_req req)
427 {
428 SvREFCNT_dec (req->callback);
429
430 SvREFCNT_dec (req->rsv1);
431 SvREFCNT_dec (req->rsv2);
432
433 free (req->buf1);
434 free (req->buf2);
435 free (req->buf3);
436
437 Safefree (req);
438 }
439
440 #ifdef USE_SOCKETS_AS_HANDLES
441 # define TO_SOCKET(x) (win32_get_osfhandle (x))
442 #else
443 # define TO_SOCKET(x) (x)
444 #endif
445
446 static void
447 create_respipe (void)
448 {
449 #ifdef _WIN32
450 int arg; /* argg */
451 #endif
452 int old_readfd = respipe [0];
453
454 if (respipe [1] >= 0)
455 respipe_close (TO_SOCKET (respipe [1]));
456
457 #ifdef _WIN32
458 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
459 #else
460 if (pipe (respipe))
461 #endif
462 croak ("unable to initialize result pipe");
463
464 if (old_readfd >= 0)
465 {
466 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
467 croak ("unable to initialize result pipe(2)");
468
469 respipe_close (respipe [0]);
470 respipe [0] = old_readfd;
471 }
472
473 #ifdef _WIN32
474 arg = 1;
475 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
476 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
477 #else
478 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
479 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480 #endif
481 croak ("unable to initialize result pipe(3)");
482
483 respipe_osf [0] = TO_SOCKET (respipe [0]);
484 respipe_osf [1] = TO_SOCKET (respipe [1]);
485 }
486
487 static void bdb_request (bdb_req req);
488 X_THREAD_PROC (bdb_proc);
489
490 static void start_thread (void)
491 {
492 worker *wrk = calloc (1, sizeof (worker));
493
494 if (!wrk)
495 croak ("unable to allocate worker thread data");
496
497 X_LOCK (wrklock);
498 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
499 {
500 wrk->prev = &wrk_first;
501 wrk->next = wrk_first.next;
502 wrk_first.next->prev = wrk;
503 wrk_first.next = wrk;
504 ++started;
505 }
506 else
507 free (wrk);
508
509 X_UNLOCK (wrklock);
510 }
511
512 static void maybe_start_thread (void)
513 {
514 if (get_nthreads () >= wanted)
515 return;
516
517 /* todo: maybe use idle here, but might be less exact */
518 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
519 return;
520
521 start_thread ();
522 }
523
524 static void req_send (bdb_req req)
525 {
526 SV *wait_callback = 0;
527
528 if (on_next_submit)
529 {
530 dSP;
531 SV *cb = sv_2mortal (on_next_submit);
532
533 on_next_submit = 0;
534
535 PUSHMARK (SP);
536 PUTBACK;
537 call_sv (cb, G_DISCARD | G_EVAL);
538 SPAGAIN;
539 }
540
541 // synthesize callback if none given
542 if (!req->callback)
543 {
544 if (SvOK (prepare_cb))
545 {
546 int count;
547
548 dSP;
549 PUSHMARK (SP);
550 PUTBACK;
551 count = call_sv (prepare_cb, G_ARRAY);
552 SPAGAIN;
553
554 if (count != 2)
555 croak ("sync prepare callback must return exactly two values\n");
556
557 wait_callback = POPs;
558 req->callback = SvREFCNT_inc (POPs);
559 }
560 else
561 {
562 // execute request synchronously
563 bdb_request (req);
564 req_invoke (req);
565 req_free (req);
566 return;
567 }
568 }
569
570 ++nreqs;
571
572 X_LOCK (reqlock);
573 ++nready;
574 reqq_push (&req_queue, req);
575 X_COND_SIGNAL (reqwait);
576 X_UNLOCK (reqlock);
577
578 maybe_start_thread ();
579
580 if (wait_callback)
581 {
582 dSP;
583 PUSHMARK (SP);
584 PUTBACK;
585 call_sv (wait_callback, G_DISCARD);
586 }
587 }
588
589 static void end_thread (void)
590 {
591 bdb_req req = calloc (1, sizeof (bdb_cb));
592
593 req->type = REQ_QUIT;
594 req->pri = PRI_MAX + PRI_BIAS;
595
596 X_LOCK (reqlock);
597 reqq_push (&req_queue, req);
598 X_COND_SIGNAL (reqwait);
599 X_UNLOCK (reqlock);
600
601 X_LOCK (wrklock);
602 --started;
603 X_UNLOCK (wrklock);
604 }
605
606 static void set_max_idle (int nthreads)
607 {
608 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
609 max_idle = nthreads <= 0 ? 1 : nthreads;
610 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
611 }
612
613 static void min_parallel (int nthreads)
614 {
615 if (wanted < nthreads)
616 wanted = nthreads;
617 }
618
619 static void max_parallel (int nthreads)
620 {
621 if (wanted > nthreads)
622 wanted = nthreads;
623
624 while (started > wanted)
625 end_thread ();
626 }
627
628 static void poll_wait (void)
629 {
630 fd_set rfd;
631
632 while (nreqs)
633 {
634 int size;
635 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
636 size = res_queue.size;
637 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
638
639 if (size)
640 return;
641
642 maybe_start_thread ();
643
644 FD_ZERO (&rfd);
645 FD_SET (respipe [0], &rfd);
646
647 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
648 }
649 }
650
651 static int poll_cb (void)
652 {
653 dSP;
654 int count = 0;
655 int maxreqs = max_poll_reqs;
656 int do_croak = 0;
657 struct timeval tv_start, tv_now;
658 bdb_req req;
659
660 if (max_poll_time)
661 gettimeofday (&tv_start, 0);
662
663 for (;;)
664 {
665 for (;;)
666 {
667 maybe_start_thread ();
668
669 X_LOCK (reslock);
670 req = reqq_shift (&res_queue);
671
672 if (req)
673 {
674 --npending;
675
676 if (!res_queue.size)
677 {
678 /* read any signals sent by the worker threads */
679 char buf [4];
680 while (respipe_read (respipe [0], buf, 4) == 4)
681 ;
682 }
683 }
684
685 X_UNLOCK (reslock);
686
687 if (!req)
688 break;
689
690 --nreqs;
691
692 if (!req_invoke (req))
693 {
694 req_free (req);
695 croak (0);
696 }
697
698 count++;
699
700 req_free (req);
701
702 if (maxreqs && !--maxreqs)
703 break;
704
705 if (max_poll_time)
706 {
707 gettimeofday (&tv_now, 0);
708
709 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
710 break;
711 }
712 }
713
714 if (nreqs <= max_outstanding)
715 break;
716
717 poll_wait ();
718
719 ++maxreqs;
720 }
721
722 return count;
723 }
724
725 /*****************************************************************************/
726
727 static void
728 bdb_request (bdb_req req)
729 {
730 switch (req->type)
731 {
732 case REQ_ENV_OPEN:
733 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
734 break;
735
736 case REQ_ENV_CLOSE:
737 req->result = req->env->close (req->env, req->uint1);
738 break;
739
740 case REQ_ENV_TXN_CHECKPOINT:
741 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
742 break;
743
744 case REQ_ENV_LOCK_DETECT:
745 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
746 break;
747
748 case REQ_ENV_MEMP_SYNC:
749 req->result = req->env->memp_sync (req->env, 0);
750 break;
751
752 case REQ_ENV_MEMP_TRICKLE:
753 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
754 break;
755
756 case REQ_ENV_DBREMOVE:
757 req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
758 break;
759
760 case REQ_ENV_DBRENAME:
761 req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
762 break;
763
764 case REQ_DB_OPEN:
765 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
766 break;
767
768 case REQ_DB_CLOSE:
769 req->result = req->db->close (req->db, req->uint1);
770 break;
771
772 #if DB_VERSION_MINOR >= 4
773 case REQ_DB_COMPACT:
774 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
775 break;
776 #endif
777
778 case REQ_DB_SYNC:
779 req->result = req->db->sync (req->db, req->uint1);
780 break;
781
782 case REQ_DB_UPGRADE:
783 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
784 break;
785
786 case REQ_DB_PUT:
787 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
788 break;
789
790 #if DB_VERSION_MINOR >= 6
791 case REQ_DB_EXISTS:
792 req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
793 break;
794 #endif
795 case REQ_DB_GET:
796 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
797 break;
798
799 case REQ_DB_PGET:
800 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
801 break;
802
803 case REQ_DB_DEL:
804 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
805 break;
806
807 case REQ_DB_KEY_RANGE:
808 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
809 break;
810
811 case REQ_TXN_COMMIT:
812 req->result = req->txn->commit (req->txn, req->uint1);
813 break;
814
815 case REQ_TXN_ABORT:
816 req->result = req->txn->abort (req->txn);
817 break;
818
819 case REQ_TXN_FINISH:
820 if (req->txn->flags & TXN_DEADLOCK)
821 {
822 req->result = req->txn->abort (req->txn);
823 if (!req->result)
824 req->result = DB_LOCK_DEADLOCK;
825 }
826 else
827 req->result = req->txn->commit (req->txn, req->uint1);
828 break;
829
830 case REQ_C_CLOSE:
831 req->result = req->dbc->c_close (req->dbc);
832 break;
833
834 case REQ_C_COUNT:
835 {
836 db_recno_t recno;
837 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
838 req->uv1 = recno;
839 }
840 break;
841
842 case REQ_C_PUT:
843 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
844 break;
845
846 case REQ_C_GET:
847 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
848 break;
849
850 case REQ_C_PGET:
851 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
852 break;
853
854 case REQ_C_DEL:
855 req->result = req->dbc->c_del (req->dbc, req->uint1);
856 break;
857
858 #if DB_VERSION_MINOR >= 3
859 case REQ_SEQ_OPEN:
860 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
861 break;
862
863 case REQ_SEQ_CLOSE:
864 req->result = req->seq->close (req->seq, req->uint1);
865 break;
866
867 case REQ_SEQ_GET:
868 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
869 break;
870
871 case REQ_SEQ_REMOVE:
872 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
873 break;
874 #endif
875
876 default:
877 req->result = ENOSYS;
878 break;
879 }
880
881 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
882 req->txn->flags |= TXN_DEADLOCK;
883 }
884
885 X_THREAD_PROC (bdb_proc)
886 {
887 bdb_req req;
888 struct timespec ts;
889 worker *self = (worker *)thr_arg;
890
891 /* try to distribute timeouts somewhat evenly */
892 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
893
894 for (;;)
895 {
896 ts.tv_sec = time (0) + IDLE_TIMEOUT;
897
898 X_LOCK (reqlock);
899
900 for (;;)
901 {
902 self->req = req = reqq_shift (&req_queue);
903
904 if (req)
905 break;
906
907 ++idle;
908
909 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
910 == ETIMEDOUT)
911 {
912 if (idle > max_idle)
913 {
914 --idle;
915 X_UNLOCK (reqlock);
916 X_LOCK (wrklock);
917 --started;
918 X_UNLOCK (wrklock);
919 goto quit;
920 }
921
922 /* we are allowed to idle, so do so without any timeout */
923 X_COND_WAIT (reqwait, reqlock);
924 ts.tv_sec = time (0) + IDLE_TIMEOUT;
925 }
926
927 --idle;
928 }
929
930 --nready;
931
932 X_UNLOCK (reqlock);
933
934 if (req->type == REQ_QUIT)
935 {
936 X_LOCK (reslock);
937 free (req);
938 self->req = 0;
939 X_UNLOCK (reslock);
940
941 goto quit;
942 }
943
944 bdb_request (req);
945
946 X_LOCK (reslock);
947
948 ++npending;
949
950 if (!reqq_push (&res_queue, req))
951 /* write a dummy byte to the pipe so fh becomes ready */
952 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
953
954 self->req = 0;
955 worker_clear (self);
956
957 X_UNLOCK (reslock);
958 }
959
960 quit:
961 X_LOCK (wrklock);
962 worker_free (self);
963 X_UNLOCK (wrklock);
964
965 return 0;
966 }
967
968 /*****************************************************************************/
969
970 static void atfork_prepare (void)
971 {
972 X_LOCK (wrklock);
973 X_LOCK (reqlock);
974 X_LOCK (reslock);
975 }
976
977 static void atfork_parent (void)
978 {
979 X_UNLOCK (reslock);
980 X_UNLOCK (reqlock);
981 X_UNLOCK (wrklock);
982 }
983
984 static void atfork_child (void)
985 {
986 bdb_req prv;
987
988 while (prv = reqq_shift (&req_queue))
989 req_free (prv);
990
991 while (prv = reqq_shift (&res_queue))
992 req_free (prv);
993
994 while (wrk_first.next != &wrk_first)
995 {
996 worker *wrk = wrk_first.next;
997
998 if (wrk->req)
999 req_free (wrk->req);
1000
1001 worker_clear (wrk);
1002 worker_free (wrk);
1003 }
1004
1005 started = 0;
1006 idle = 0;
1007 nreqs = 0;
1008 nready = 0;
1009 npending = 0;
1010
1011 create_respipe ();
1012
1013 atfork_parent ();
1014 }
1015
1016 #define dREQ(reqtype,rsvcnt) \
1017 bdb_req req; \
1018 int req_pri = next_pri; \
1019 next_pri = DEFAULT_PRI + PRI_BIAS; \
1020 \
1021 if (callback && SvOK (callback)) \
1022 croak ("callback has illegal type or extra arguments"); \
1023 \
1024 Newz (0, req, 1, bdb_cb); \
1025 if (!req) \
1026 croak ("out of memory during bdb_req allocation"); \
1027 \
1028 req->callback = SvREFCNT_inc (cb); \
1029 req->type = (reqtype); \
1030 req->pri = req_pri; \
1031 if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
1032 if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
1033 (void)0;
1034
1035 #define REQ_SEND \
1036 req_send (req)
1037
1038 #define SvPTR(var, arg, type, class, nullok) \
1039 if (!SvOK (arg)) \
1040 { \
1041 if (nullok != 1) \
1042 croak (# var " must be a " # class " object, not undef"); \
1043 \
1044 (var) = 0; \
1045 } \
1046 else if (sv_derived_from ((arg), # class)) \
1047 { \
1048 IV tmp = SvIV ((SV*) SvRV (arg)); \
1049 (var) = INT2PTR (type, tmp); \
1050 if (!var && nullok != 2) \
1051 croak (# var " is not a valid " # class " object anymore"); \
1052 } \
1053 else \
1054 croak (# var " is not of type " # class);
1055
1056 #define ARG_MUTABLE(name) \
1057 if (SvREADONLY (name)) \
1058 croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
1059
1060 static void
1061 ptr_nuke (SV *sv)
1062 {
1063 assert (SvROK (sv));
1064 sv_setiv (SvRV (sv), 0);
1065 }
1066
1067 static int
1068 errno_get (pTHX_ SV *sv, MAGIC *mg)
1069 {
1070 if (*mg->mg_ptr == '!') // should always be the case
1071 if (-30999 <= errno && errno <= -30800)
1072 {
1073 sv_setnv (sv, (NV)errno);
1074 sv_setpv (sv, db_strerror (errno));
1075 SvNOK_on (sv); /* what a wonderful hack! */
1076 // ^^^ copied from perl sources
1077 return 0;
1078 }
1079
1080 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1081 }
1082
1083 static MGVTBL vtbl_errno;
1084
1085 // this wonderful hack :( patches perl's $! variable to support our errno values
1086 static void
1087 patch_errno (void)
1088 {
1089 SV *sv;
1090 MAGIC *mg;
1091
1092 if (!(sv = get_sv ("!", 1)))
1093 return;
1094
1095 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1096 return;
1097
1098 if (mg->mg_virtual != &PL_vtbl_sv)
1099 return;
1100
1101 vtbl_errno = PL_vtbl_sv;
1102 vtbl_errno.svt_get = errno_get;
1103 mg->mg_virtual = &vtbl_errno;
1104 }
1105
1106 #if __GNUC__ >= 4
1107 # define noinline __attribute__ ((noinline))
1108 #else
1109 # define noinline
1110 #endif
1111
1112 static noinline SV *
1113 pop_callback (I32 *ritems, SV *sv)
1114 {
1115 if (SvROK (sv))
1116 {
1117 HV *st;
1118 GV *gvp;
1119 CV *cv;
1120 const char *name;
1121
1122 /* forgive me */
1123 if (SvTYPE (SvRV (sv)) == SVt_PVMG
1124 && (st = SvSTASH (SvRV (sv)))
1125 && (name = HvNAME_get (st))
1126 && (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
1127 return 0;
1128
1129 if ((cv = sv_2cv (sv, &st, &gvp, 0)))
1130 {
1131 --*ritems;
1132 return (SV *)cv;
1133 }
1134 }
1135
1136 return 0;
1137 }
1138
1139 /* stupid windoes defined CALLBACK as well */
1140 #undef CALLBACK
1141 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1142
1143 MODULE = BDB PACKAGE = BDB
1144
1145 PROTOTYPES: ENABLE
1146
1147 BOOT:
1148 {
1149 HV *stash = gv_stashpv ("BDB", 1);
1150
1151 static const struct {
1152 const char *name;
1153 IV iv;
1154 } *civ, const_iv[] = {
1155 #define const_iv(name) { # name, (IV)DB_ ## name },
1156 const_iv (RPCCLIENT)
1157 const_iv (INIT_CDB)
1158 const_iv (INIT_LOCK)
1159 const_iv (INIT_LOG)
1160 const_iv (INIT_MPOOL)
1161 const_iv (INIT_REP)
1162 const_iv (INIT_TXN)
1163 const_iv (RECOVER)
1164 const_iv (INIT_TXN)
1165 const_iv (RECOVER_FATAL)
1166 const_iv (CREATE)
1167 const_iv (RDONLY)
1168 const_iv (USE_ENVIRON)
1169 const_iv (USE_ENVIRON_ROOT)
1170 const_iv (LOCKDOWN)
1171 const_iv (PRIVATE)
1172 const_iv (SYSTEM_MEM)
1173 const_iv (AUTO_COMMIT)
1174 const_iv (CDB_ALLDB)
1175 const_iv (DIRECT_DB)
1176 const_iv (NOLOCKING)
1177 const_iv (NOMMAP)
1178 const_iv (NOPANIC)
1179 const_iv (OVERWRITE)
1180 const_iv (PANIC_ENVIRONMENT)
1181 const_iv (REGION_INIT)
1182 const_iv (TIME_NOTGRANTED)
1183 const_iv (TXN_NOSYNC)
1184 const_iv (TXN_NOT_DURABLE)
1185 const_iv (TXN_WRITE_NOSYNC)
1186 const_iv (WRITECURSOR)
1187 const_iv (YIELDCPU)
1188 const_iv (ENCRYPT_AES)
1189 const_iv (XA_CREATE)
1190 const_iv (BTREE)
1191 const_iv (HASH)
1192 const_iv (QUEUE)
1193 const_iv (RECNO)
1194 const_iv (UNKNOWN)
1195 const_iv (EXCL)
1196 const_iv (TRUNCATE)
1197 const_iv (NOSYNC)
1198 const_iv (CHKSUM)
1199 const_iv (ENCRYPT)
1200 const_iv (DUP)
1201 const_iv (DUPSORT)
1202 const_iv (RECNUM)
1203 const_iv (RENUMBER)
1204 const_iv (REVSPLITOFF)
1205 const_iv (CONSUME)
1206 const_iv (CONSUME_WAIT)
1207 const_iv (GET_BOTH)
1208 const_iv (GET_BOTH_RANGE)
1209 //const_iv (SET_RECNO)
1210 //const_iv (MULTIPLE)
1211 const_iv (SNAPSHOT)
1212 const_iv (JOIN_ITEM)
1213 const_iv (JOIN_NOSORT)
1214 const_iv (RMW)
1215
1216 const_iv (NOTFOUND)
1217 const_iv (KEYEMPTY)
1218 const_iv (LOCK_DEADLOCK)
1219 const_iv (LOCK_NOTGRANTED)
1220 const_iv (RUNRECOVERY)
1221 const_iv (OLD_VERSION)
1222 const_iv (REP_HANDLE_DEAD)
1223 const_iv (SECONDARY_BAD)
1224
1225 const_iv (APPEND)
1226 const_iv (NODUPDATA)
1227 const_iv (NOOVERWRITE)
1228
1229 const_iv (TXN_NOWAIT)
1230 const_iv (TXN_SYNC)
1231
1232 const_iv (SET_LOCK_TIMEOUT)
1233 const_iv (SET_TXN_TIMEOUT)
1234
1235 const_iv (FIRST)
1236 const_iv (NEXT)
1237 const_iv (NEXT_DUP)
1238 const_iv (NEXT_NODUP)
1239 const_iv (PREV)
1240 const_iv (PREV_NODUP)
1241 const_iv (SET)
1242 const_iv (SET_RANGE)
1243 const_iv (LAST)
1244 const_iv (BEFORE)
1245 const_iv (AFTER)
1246 const_iv (CURRENT)
1247 const_iv (KEYFIRST)
1248 const_iv (KEYLAST)
1249 const_iv (NODUPDATA)
1250
1251 const_iv (FORCE)
1252
1253 const_iv (LOCK_DEFAULT)
1254 const_iv (LOCK_EXPIRE)
1255 const_iv (LOCK_MAXLOCKS)
1256 const_iv (LOCK_MINLOCKS)
1257 const_iv (LOCK_MINWRITE)
1258 const_iv (LOCK_OLDEST)
1259 const_iv (LOCK_RANDOM)
1260 const_iv (LOCK_YOUNGEST)
1261
1262 const_iv (DONOTINDEX)
1263 const_iv (KEYEMPTY )
1264 const_iv (KEYEXIST )
1265 const_iv (LOCK_DEADLOCK)
1266 const_iv (LOCK_NOTGRANTED)
1267 const_iv (NOSERVER)
1268 const_iv (NOSERVER_HOME)
1269 const_iv (NOSERVER_ID)
1270 const_iv (NOTFOUND)
1271 const_iv (PAGE_NOTFOUND)
1272 const_iv (REP_DUPMASTER)
1273 const_iv (REP_HANDLE_DEAD)
1274 const_iv (REP_HOLDELECTION)
1275 const_iv (REP_ISPERM)
1276 const_iv (REP_NEWMASTER)
1277 const_iv (REP_NEWSITE)
1278 const_iv (REP_NOTPERM)
1279 const_iv (REP_UNAVAIL)
1280 const_iv (RUNRECOVERY)
1281 const_iv (SECONDARY_BAD)
1282 const_iv (VERIFY_BAD)
1283
1284 const_iv (VERB_DEADLOCK)
1285 const_iv (VERB_RECOVERY)
1286 const_iv (VERB_REPLICATION)
1287 const_iv (VERB_WAITSFOR)
1288
1289 const_iv (VERSION_MAJOR)
1290 const_iv (VERSION_MINOR)
1291 const_iv (VERSION_PATCH)
1292 #if DB_VERSION_MINOR >= 3
1293 const_iv (INORDER)
1294 const_iv (LOCK_MAXWRITE)
1295 const_iv (SEQ_DEC)
1296 const_iv (SEQ_INC)
1297 const_iv (SEQ_WRAP)
1298 const_iv (BUFFER_SMALL)
1299 const_iv (LOG_BUFFER_FULL)
1300 const_iv (VERSION_MISMATCH)
1301 #endif
1302 #if DB_VERSION_MINOR >= 4
1303 const_iv (REGISTER)
1304 const_iv (DSYNC_DB)
1305 const_iv (READ_COMMITTED)
1306 const_iv (READ_UNCOMMITTED)
1307 const_iv (REP_IGNORE)
1308 const_iv (REP_LOCKOUT)
1309 const_iv (REP_JOIN_FAILURE)
1310 const_iv (FREE_SPACE)
1311 const_iv (FREELIST_ONLY)
1312 const_iv (VERB_REGISTER)
1313 #endif
1314 #if DB_VERSION_MINOR >= 5
1315 const_iv (MULTIVERSION)
1316 const_iv (TXN_SNAPSHOT)
1317 #endif
1318 #if DB_VERSION_MINOR >= 6
1319 const_iv (PREV_DUP)
1320 const_iv (PRIORITY_UNCHANGED)
1321 const_iv (PRIORITY_VERY_LOW)
1322 const_iv (PRIORITY_LOW)
1323 const_iv (PRIORITY_DEFAULT)
1324 const_iv (PRIORITY_HIGH)
1325 const_iv (PRIORITY_VERY_HIGH)
1326 #endif
1327 #if DB_VERSION_MINOR >= 7
1328 const_iv (LOG_DIRECT)
1329 const_iv (LOG_DSYNC)
1330 const_iv (LOG_AUTO_REMOVE)
1331 const_iv (LOG_IN_MEMORY)
1332 const_iv (LOG_ZERO)
1333 #else
1334 const_iv (DIRECT_LOG)
1335 const_iv (LOG_AUTOREMOVE)
1336 # if DB_VERSION_MINOR >= 3
1337 const_iv (DSYNC_LOG)
1338 const_iv (LOG_INMEMORY)
1339 # endif
1340 #endif
1341 };
1342
1343 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1344 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1345
1346 prepare_cb = &PL_sv_undef;
1347
1348 {
1349 /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1350 char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1351
1352 newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1353 }
1354
1355 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1356
1357 create_respipe ();
1358
1359 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1360 patch_errno ();
1361 }
1362
1363 void
1364 max_poll_reqs (int nreqs)
1365 PROTOTYPE: $
1366 CODE:
1367 max_poll_reqs = nreqs;
1368
1369 void
1370 max_poll_time (double nseconds)
1371 PROTOTYPE: $
1372 CODE:
1373 max_poll_time = nseconds * AIO_TICKS;
1374
1375 void
1376 min_parallel (int nthreads)
1377 PROTOTYPE: $
1378
1379 void
1380 max_parallel (int nthreads)
1381 PROTOTYPE: $
1382
1383 void
1384 max_idle (int nthreads)
1385 PROTOTYPE: $
1386 CODE:
1387 set_max_idle (nthreads);
1388
1389 int
1390 max_outstanding (int maxreqs)
1391 PROTOTYPE: $
1392 CODE:
1393 RETVAL = max_outstanding;
1394 max_outstanding = maxreqs;
1395 OUTPUT:
1396 RETVAL
1397
1398 int
1399 dbreq_pri (int pri = 0)
1400 PROTOTYPE: ;$
1401 CODE:
1402 RETVAL = next_pri - PRI_BIAS;
1403 if (items > 0)
1404 {
1405 if (pri < PRI_MIN) pri = PRI_MIN;
1406 if (pri > PRI_MAX) pri = PRI_MAX;
1407 next_pri = pri + PRI_BIAS;
1408 }
1409 OUTPUT:
1410 RETVAL
1411
1412 void
1413 dbreq_nice (int nice = 0)
1414 CODE:
1415 nice = next_pri - nice;
1416 if (nice < PRI_MIN) nice = PRI_MIN;
1417 if (nice > PRI_MAX) nice = PRI_MAX;
1418 next_pri = nice + PRI_BIAS;
1419
1420 void
1421 flush ()
1422 PROTOTYPE:
1423 CODE:
1424 while (nreqs)
1425 {
1426 poll_wait ();
1427 poll_cb ();
1428 }
1429
1430 int
1431 poll ()
1432 PROTOTYPE:
1433 CODE:
1434 poll_wait ();
1435 RETVAL = poll_cb ();
1436 OUTPUT:
1437 RETVAL
1438
1439 int
1440 poll_fileno ()
1441 PROTOTYPE:
1442 CODE:
1443 RETVAL = respipe [0];
1444 OUTPUT:
1445 RETVAL
1446
1447 int
1448 poll_cb (...)
1449 PROTOTYPE:
1450 CODE:
1451 RETVAL = poll_cb ();
1452 OUTPUT:
1453 RETVAL
1454
1455 void
1456 poll_wait ()
1457 PROTOTYPE:
1458 CODE:
1459 poll_wait ();
1460
1461 int
1462 nreqs ()
1463 PROTOTYPE:
1464 CODE:
1465 RETVAL = nreqs;
1466 OUTPUT:
1467 RETVAL
1468
1469 int
1470 nready ()
1471 PROTOTYPE:
1472 CODE:
1473 RETVAL = get_nready ();
1474 OUTPUT:
1475 RETVAL
1476
1477 int
1478 npending ()
1479 PROTOTYPE:
1480 CODE:
1481 RETVAL = get_npending ();
1482 OUTPUT:
1483 RETVAL
1484
1485 int
1486 nthreads ()
1487 PROTOTYPE:
1488 CODE:
1489 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1490 RETVAL = started;
1491 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1492 OUTPUT:
1493 RETVAL
1494
1495 SV *
1496 set_sync_prepare (SV *cb)
1497 PROTOTYPE: &
1498 CODE:
1499 RETVAL = prepare_cb;
1500 prepare_cb = newSVsv (cb);
1501 OUTPUT:
1502 RETVAL
1503
1504 char *
1505 strerror (int errorno = errno)
1506 PROTOTYPE: ;$
1507 CODE:
1508 RETVAL = db_strerror (errorno);
1509 OUTPUT:
1510 RETVAL
1511
1512 void _on_next_submit (SV *cb)
1513 CODE:
1514 SvREFCNT_dec (on_next_submit);
1515 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1516
1517 DB_ENV *
1518 db_env_create (U32 env_flags = 0)
1519 CODE:
1520 {
1521 errno = db_env_create (&RETVAL, env_flags);
1522 if (errno)
1523 croak ("db_env_create: %s", db_strerror (errno));
1524
1525 if (0)
1526 {
1527 RETVAL->set_errcall (RETVAL, debug_errcall);
1528 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1529 }
1530 }
1531 OUTPUT:
1532 RETVAL
1533
1534 void
1535 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1536 PREINIT:
1537 CALLBACK
1538 CODE:
1539 {
1540 dREQ (REQ_ENV_OPEN, 1);
1541 req->env = env;
1542 req->uint1 = open_flags | DB_THREAD;
1543 req->int1 = mode;
1544 req->buf1 = strdup_ornull (db_home);
1545 REQ_SEND;
1546 }
1547
1548 void
1549 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1550 PREINIT:
1551 CALLBACK
1552 CODE:
1553 {
1554 ptr_nuke (ST (0));
1555 dREQ (REQ_ENV_CLOSE, 0);
1556 req->env = env;
1557 req->uint1 = flags;
1558 REQ_SEND;
1559 }
1560
1561 void
1562 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1563 PREINIT:
1564 CALLBACK
1565 CODE:
1566 {
1567 dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
1568 req->env = env;
1569 req->uint1 = kbyte;
1570 req->int1 = min;
1571 req->uint2 = flags;
1572 REQ_SEND;
1573 }
1574
1575 void
1576 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1577 PREINIT:
1578 CALLBACK
1579 CODE:
1580 {
1581 dREQ (REQ_ENV_LOCK_DETECT, 1);
1582 req->env = env;
1583 req->uint1 = flags;
1584 req->uint2 = atype;
1585 /* req->int2 = 0; dummy */
1586 REQ_SEND;
1587 }
1588
1589 void
1590 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1591 PREINIT:
1592 CALLBACK
1593 CODE:
1594 {
1595 dREQ (REQ_ENV_MEMP_SYNC, 1);
1596 req->env = env;
1597 REQ_SEND;
1598 }
1599
1600 void
1601 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1602 PREINIT:
1603 CALLBACK
1604 CODE:
1605 {
1606 dREQ (REQ_ENV_MEMP_TRICKLE, 1);
1607 req->env = env;
1608 req->int1 = percent;
1609 REQ_SEND;
1610 }
1611
1612 void
1613 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1614 PREINIT:
1615 CALLBACK
1616 CODE:
1617 {
1618 dREQ (REQ_ENV_DBREMOVE, 2);
1619 req->env = env;
1620 req->buf1 = strdup_ornull (file);
1621 req->buf2 = strdup_ornull (database);
1622 req->uint1 = flags;
1623 REQ_SEND;
1624 }
1625
1626 void
1627 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)
1628 PREINIT:
1629 CALLBACK
1630 CODE:
1631 {
1632 dREQ (REQ_ENV_DBRENAME, 2);
1633 req->env = env;
1634 req->buf1 = strdup_ornull (file);
1635 req->buf2 = strdup_ornull (database);
1636 req->buf3 = strdup_ornull (newname);
1637 req->uint1 = flags;
1638 REQ_SEND;
1639 }
1640
1641 DB *
1642 db_create (DB_ENV *env = 0, U32 flags = 0)
1643 CODE:
1644 {
1645 errno = db_create (&RETVAL, env, flags);
1646 if (errno)
1647 croak ("db_create: %s", db_strerror (errno));
1648
1649 if (RETVAL)
1650 RETVAL->app_private = (void *)newSVsv (ST (0));
1651 }
1652 OUTPUT:
1653 RETVAL
1654
1655 void
1656 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1657 PREINIT:
1658 CALLBACK
1659 CODE:
1660 {
1661 dREQ (REQ_DB_OPEN, 2);
1662 req->db = db;
1663 req->txn = txnid;
1664 req->buf1 = strdup_ornull (file);
1665 req->buf2 = strdup_ornull (database);
1666 req->int1 = type;
1667 req->uint1 = flags | DB_THREAD;
1668 req->int2 = mode;
1669 REQ_SEND;
1670 }
1671
1672 void
1673 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1674 PREINIT:
1675 CALLBACK
1676 CODE:
1677 {
1678 ptr_nuke (ST (0));
1679 dREQ (REQ_DB_CLOSE, 0);
1680 req->db = db;
1681 req->uint1 = flags;
1682 req->sv1 = (SV *)db->app_private;
1683 REQ_SEND;
1684 }
1685
1686 #if DB_VERSION_MINOR >= 4
1687
1688 void
1689 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)
1690 PREINIT:
1691 CALLBACK
1692 CODE:
1693 {
1694 dREQ (REQ_DB_COMPACT, 2);
1695 req->db = db;
1696 req->txn = txn;
1697 sv_to_dbt (&req->dbt1, start);
1698 sv_to_dbt (&req->dbt2, stop);
1699 req->uint1 = flags;
1700 REQ_SEND;
1701 }
1702
1703 #endif
1704
1705 void
1706 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1707 PREINIT:
1708 CALLBACK
1709 CODE:
1710 {
1711 dREQ (REQ_DB_SYNC, 1);
1712 req->db = db;
1713 req->uint1 = flags;
1714 REQ_SEND;
1715 }
1716
1717 void
1718 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1719 PREINIT:
1720 CALLBACK
1721 CODE:
1722 {
1723 dREQ (REQ_DB_SYNC, 1);
1724 req->db = db;
1725 req->buf1 = strdup (file);
1726 req->uint1 = flags;
1727 REQ_SEND;
1728 }
1729
1730 void
1731 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
1732 PREINIT:
1733 CALLBACK
1734 CODE:
1735 {
1736 dREQ (REQ_DB_KEY_RANGE, 2);
1737 req->db = db;
1738 req->txn = txn;
1739 sv_to_dbt (&req->dbt1, key);
1740 req->uint1 = flags;
1741 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1742 REQ_SEND;
1743 }
1744
1745 void
1746 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1747 PREINIT:
1748 CALLBACK
1749 CODE:
1750 {
1751 dREQ (REQ_DB_PUT, 2);
1752 req->db = db;
1753 req->txn = txn;
1754 sv_to_dbt (&req->dbt1, key);
1755 sv_to_dbt (&req->dbt2, data);
1756 req->uint1 = flags;
1757 REQ_SEND;
1758 }
1759
1760 #if DB_VERSION_MINOR >= 6
1761
1762 void
1763 db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1764 PREINIT:
1765 CALLBACK
1766 CODE:
1767 {
1768 dREQ (REQ_DB_EXISTS, 2);
1769 req->db = db;
1770 req->txn = txn;
1771 req->uint1 = flags;
1772 sv_to_dbt (&req->dbt1, key);
1773 REQ_SEND;
1774 }
1775
1776 #endif
1777
1778 void
1779 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1780 PREINIT:
1781 CALLBACK
1782 CODE:
1783 {
1784 //TODO: key is somtimesmutable
1785 dREQ (REQ_DB_GET, 2);
1786 req->db = db;
1787 req->txn = txn;
1788 req->uint1 = flags;
1789 sv_to_dbt (&req->dbt1, key);
1790 req->dbt3.flags = DB_DBT_MALLOC;
1791 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1792 REQ_SEND;
1793 }
1794
1795 void
1796 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1797 PREINIT:
1798 CALLBACK
1799 CODE:
1800 {
1801 //TODO: key is somtimesmutable
1802 dREQ (REQ_DB_PGET, 2);
1803 req->db = db;
1804 req->txn = txn;
1805 req->uint1 = flags;
1806
1807 sv_to_dbt (&req->dbt1, key);
1808
1809 req->dbt2.flags = DB_DBT_MALLOC;
1810 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1811
1812 req->dbt3.flags = DB_DBT_MALLOC;
1813 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1814 REQ_SEND;
1815 }
1816
1817 void
1818 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1819 PREINIT:
1820 CALLBACK
1821 CODE:
1822 {
1823 dREQ (REQ_DB_DEL, 2);
1824 req->db = db;
1825 req->txn = txn;
1826 req->uint1 = flags;
1827 sv_to_dbt (&req->dbt1, key);
1828 REQ_SEND;
1829 }
1830
1831 void
1832 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1833 PREINIT:
1834 CALLBACK
1835 CODE:
1836 {
1837 ptr_nuke (ST (0));
1838 dREQ (REQ_TXN_COMMIT, 0);
1839 req->txn = txn;
1840 req->uint1 = flags;
1841 REQ_SEND;
1842 }
1843
1844 void
1845 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1846 PREINIT:
1847 CALLBACK
1848 CODE:
1849 {
1850 ptr_nuke (ST (0));
1851 dREQ (REQ_TXN_ABORT, 0);
1852 req->txn = txn;
1853 REQ_SEND;
1854 }
1855
1856 void
1857 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1858 PREINIT:
1859 CALLBACK
1860 CODE:
1861 {
1862 ptr_nuke (ST (0));
1863 dREQ (REQ_TXN_FINISH, 0);
1864 req->txn = txn;
1865 req->uint1 = flags;
1866 REQ_SEND;
1867 }
1868
1869 void
1870 db_c_close (DBC *dbc, SV *callback = 0)
1871 PREINIT:
1872 CALLBACK
1873 CODE:
1874 {
1875 ptr_nuke (ST (0));
1876 dREQ (REQ_C_CLOSE, 0);
1877 req->dbc = dbc;
1878 REQ_SEND;
1879 }
1880
1881 void
1882 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1883 PREINIT:
1884 CALLBACK
1885 CODE:
1886 {
1887 dREQ (REQ_C_COUNT, 1);
1888 req->dbc = dbc;
1889 req->sv1 = SvREFCNT_inc (count);
1890 REQ_SEND;
1891 }
1892
1893 void
1894 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1895 PREINIT:
1896 CALLBACK
1897 CODE:
1898 {
1899 dREQ (REQ_C_PUT, 1);
1900 req->dbc = dbc;
1901 sv_to_dbt (&req->dbt1, key);
1902 sv_to_dbt (&req->dbt2, data);
1903 req->uint1 = flags;
1904 REQ_SEND;
1905 }
1906
1907 void
1908 db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1909 PREINIT:
1910 CALLBACK
1911 CODE:
1912 {
1913 if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
1914 croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
1915
1916 dREQ (REQ_C_GET, 1);
1917 req->dbc = dbc;
1918 req->uint1 = flags;
1919 if (flags & DB_OPFLAGS_MASK == DB_SET)
1920 sv_to_dbt (&req->dbt1, key);
1921 else
1922 {
1923 if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
1924 sv_to_dbt (&req->dbt1, key);
1925 else
1926 req->dbt1.flags = DB_DBT_MALLOC;
1927
1928 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1929 }
1930
1931 if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
1932 || flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
1933 sv_to_dbt (&req->dbt3, data);
1934 else
1935 req->dbt3.flags = DB_DBT_MALLOC;
1936
1937 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1938 REQ_SEND;
1939 }
1940
1941 void
1942 db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1943 PREINIT:
1944 CALLBACK
1945 CODE:
1946 {
1947 if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
1948 croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
1949
1950 dREQ (REQ_C_PGET, 1);
1951 req->dbc = dbc;
1952 req->uint1 = flags;
1953 if (flags & DB_OPFLAGS_MASK == DB_SET)
1954 sv_to_dbt (&req->dbt1, key);
1955 else
1956 {
1957 if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
1958 sv_to_dbt (&req->dbt1, key);
1959 else
1960 req->dbt1.flags = DB_DBT_MALLOC;
1961
1962 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1963 }
1964
1965 req->dbt2.flags = DB_DBT_MALLOC;
1966 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1967
1968 if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
1969 || flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
1970 sv_to_dbt (&req->dbt3, data);
1971 else
1972 req->dbt3.flags = DB_DBT_MALLOC;
1973
1974 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1975 REQ_SEND;
1976 }
1977
1978 void
1979 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
1980 PREINIT:
1981 CALLBACK
1982 CODE:
1983 {
1984 dREQ (REQ_C_DEL, 1);
1985 req->dbc = dbc;
1986 req->uint1 = flags;
1987 REQ_SEND;
1988 }
1989
1990
1991 #if DB_VERSION_MINOR >= 3
1992
1993 void
1994 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
1995 PREINIT:
1996 CALLBACK
1997 CODE:
1998 {
1999 dREQ (REQ_SEQ_OPEN, 2);
2000 req->seq = seq;
2001 req->txn = txnid;
2002 req->uint1 = flags | DB_THREAD;
2003 sv_to_dbt (&req->dbt1, key);
2004 REQ_SEND;
2005 }
2006
2007 void
2008 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
2009 PREINIT:
2010 CALLBACK
2011 CODE:
2012 {
2013 ptr_nuke (ST (0));
2014 dREQ (REQ_SEQ_CLOSE, 0);
2015 req->seq = seq;
2016 req->uint1 = flags;
2017 REQ_SEND;
2018 }
2019
2020 void
2021 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
2022 PREINIT:
2023 CALLBACK
2024 CODE:
2025 {
2026 dREQ (REQ_SEQ_GET, 2);
2027 req->seq = seq;
2028 req->txn = txnid;
2029 req->int1 = delta;
2030 req->uint1 = flags;
2031 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
2032 REQ_SEND;
2033 }
2034
2035 void
2036 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
2037 PREINIT:
2038 CALLBACK
2039 CODE:
2040 {
2041 dREQ (REQ_SEQ_REMOVE, 2);
2042 req->seq = seq;
2043 req->txn = txnid;
2044 req->uint1 = flags;
2045 REQ_SEND;
2046 }
2047
2048 #endif
2049
2050
2051 MODULE = BDB PACKAGE = BDB::Env
2052
2053 void
2054 DESTROY (DB_ENV_ornuked *env)
2055 CODE:
2056 if (env)
2057 env->close (env, 0);
2058
2059 int set_data_dir (DB_ENV *env, const char *dir)
2060 CODE:
2061 RETVAL = env->set_data_dir (env, dir);
2062 OUTPUT:
2063 RETVAL
2064
2065 int set_tmp_dir (DB_ENV *env, const char *dir)
2066 CODE:
2067 RETVAL = env->set_tmp_dir (env, dir);
2068 OUTPUT:
2069 RETVAL
2070
2071 int set_lg_dir (DB_ENV *env, const char *dir)
2072 CODE:
2073 RETVAL = env->set_lg_dir (env, dir);
2074 OUTPUT:
2075 RETVAL
2076
2077 int set_shm_key (DB_ENV *env, long shm_key)
2078 CODE:
2079 RETVAL = env->set_shm_key (env, shm_key);
2080 OUTPUT:
2081 RETVAL
2082
2083 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
2084 CODE:
2085 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
2086 OUTPUT:
2087 RETVAL
2088
2089 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
2090 CODE:
2091 RETVAL = env->set_flags (env, flags, onoff);
2092 OUTPUT:
2093 RETVAL
2094
2095 #if DB_VERSION_MINOR >= 7
2096
2097 int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
2098 CODE:
2099 RETVAL = env->set_intermediate_dir_mode (env, mode);
2100 OUTPUT:
2101 RETVAL
2102
2103 int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
2104 CODE:
2105 RETVAL = env->log_set_config (env, flags, onoff);
2106 OUTPUT:
2107 RETVAL
2108
2109 #endif
2110
2111
2112 void set_errfile (DB_ENV *env, FILE *errfile = 0)
2113 CODE:
2114 env->set_errfile (env, errfile);
2115
2116 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
2117 CODE:
2118 env->set_msgfile (env, msgfile);
2119
2120 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2121 CODE:
2122 RETVAL = env->set_verbose (env, which, onoff);
2123 OUTPUT:
2124 RETVAL
2125
2126 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2127 CODE:
2128 RETVAL = env->set_encrypt (env, password, flags);
2129 OUTPUT:
2130 RETVAL
2131
2132 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2133 CODE:
2134 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2135 OUTPUT:
2136 RETVAL
2137
2138 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2139 CODE:
2140 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2141 OUTPUT:
2142 RETVAL
2143
2144 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2145 CODE:
2146 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2147 OUTPUT:
2148 RETVAL
2149
2150 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2151 CODE:
2152 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2153 OUTPUT:
2154 RETVAL
2155
2156 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2157 CODE:
2158 RETVAL = env->set_lk_detect (env, detect);
2159 OUTPUT:
2160 RETVAL
2161
2162 int set_lk_max_lockers (DB_ENV *env, U32 max)
2163 CODE:
2164 RETVAL = env->set_lk_max_lockers (env, max);
2165 OUTPUT:
2166 RETVAL
2167
2168 int set_lk_max_locks (DB_ENV *env, U32 max)
2169 CODE:
2170 RETVAL = env->set_lk_max_locks (env, max);
2171 OUTPUT:
2172 RETVAL
2173
2174 int set_lk_max_objects (DB_ENV *env, U32 max)
2175 CODE:
2176 RETVAL = env->set_lk_max_objects (env, max);
2177 OUTPUT:
2178 RETVAL
2179
2180 int set_lg_bsize (DB_ENV *env, U32 max)
2181 CODE:
2182 RETVAL = env->set_lg_bsize (env, max);
2183 OUTPUT:
2184 RETVAL
2185
2186 int set_lg_max (DB_ENV *env, U32 max)
2187 CODE:
2188 RETVAL = env->set_lg_max (env, max);
2189 OUTPUT:
2190 RETVAL
2191
2192 #if DB_VERSION_MINOR >= 4
2193
2194 int mutex_set_max (DB_ENV *env, U32 max)
2195 CODE:
2196 RETVAL = env->mutex_set_max (env, max);
2197 OUTPUT:
2198 RETVAL
2199
2200 int mutex_set_increment (DB_ENV *env, U32 increment)
2201 CODE:
2202 RETVAL = env->mutex_set_increment (env, increment);
2203 OUTPUT:
2204 RETVAL
2205
2206 int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2207 CODE:
2208 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2209 OUTPUT:
2210 RETVAL
2211
2212 int mutex_set_align (DB_ENV *env, U32 align)
2213 CODE:
2214 RETVAL = env->mutex_set_align (env, align);
2215 OUTPUT:
2216 RETVAL
2217
2218 #endif
2219
2220 DB_TXN *
2221 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2222 CODE:
2223 errno = env->txn_begin (env, parent, &RETVAL, flags);
2224 if (errno)
2225 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2226 OUTPUT:
2227 RETVAL
2228
2229 #if DB_VERSION_MINOR >= 5
2230
2231 DB_TXN *
2232 cdsgroup_begin (DB_ENV *env)
2233 CODE:
2234 errno = env->cdsgroup_begin (env, &RETVAL);
2235 if (errno)
2236 croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
2237 OUTPUT:
2238 RETVAL
2239
2240 #endif
2241
2242 MODULE = BDB PACKAGE = BDB::Db
2243
2244 void
2245 DESTROY (DB_ornuked *db)
2246 CODE:
2247 if (db)
2248 {
2249 SV *env = (SV *)db->app_private;
2250 db->close (db, 0);
2251 SvREFCNT_dec (env);
2252 }
2253
2254 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2255 CODE:
2256 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2257 OUTPUT:
2258 RETVAL
2259
2260 int set_flags (DB *db, U32 flags)
2261 CODE:
2262 RETVAL = db->set_flags (db, flags);
2263 OUTPUT:
2264 RETVAL
2265
2266 int set_encrypt (DB *db, const char *password, U32 flags)
2267 CODE:
2268 RETVAL = db->set_encrypt (db, password, flags);
2269 OUTPUT:
2270 RETVAL
2271
2272 int set_lorder (DB *db, int lorder)
2273 CODE:
2274 RETVAL = db->set_lorder (db, lorder);
2275 OUTPUT:
2276 RETVAL
2277
2278 int set_bt_minkey (DB *db, U32 minkey)
2279 CODE:
2280 RETVAL = db->set_bt_minkey (db, minkey);
2281 OUTPUT:
2282 RETVAL
2283
2284 int set_re_delim (DB *db, int delim)
2285 CODE:
2286 RETVAL = db->set_re_delim (db, delim);
2287 OUTPUT:
2288 RETVAL
2289
2290 int set_re_pad (DB *db, int re_pad)
2291 CODE:
2292 RETVAL = db->set_re_pad (db, re_pad);
2293 OUTPUT:
2294 RETVAL
2295
2296 int set_re_source (DB *db, char *source)
2297 CODE:
2298 RETVAL = db->set_re_source (db, source);
2299 OUTPUT:
2300 RETVAL
2301
2302 int set_re_len (DB *db, U32 re_len)
2303 CODE:
2304 RETVAL = db->set_re_len (db, re_len);
2305 OUTPUT:
2306 RETVAL
2307
2308 int set_h_ffactor (DB *db, U32 h_ffactor)
2309 CODE:
2310 RETVAL = db->set_h_ffactor (db, h_ffactor);
2311 OUTPUT:
2312 RETVAL
2313
2314 int set_h_nelem (DB *db, U32 h_nelem)
2315 CODE:
2316 RETVAL = db->set_h_nelem (db, h_nelem);
2317 OUTPUT:
2318 RETVAL
2319
2320 int set_q_extentsize (DB *db, U32 extentsize)
2321 CODE:
2322 RETVAL = db->set_q_extentsize (db, extentsize);
2323 OUTPUT:
2324 RETVAL
2325
2326 DBC *
2327 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2328 CODE:
2329 errno = db->cursor (db, txn, &RETVAL, flags);
2330 if (errno)
2331 croak ("DB->cursor: %s", db_strerror (errno));
2332 OUTPUT:
2333 RETVAL
2334
2335 #if DB_VERSION_MINOR >= 3
2336
2337 DB_SEQUENCE *
2338 sequence (DB *db, U32 flags = 0)
2339 CODE:
2340 {
2341 errno = db_sequence_create (&RETVAL, db, flags);
2342 if (errno)
2343 croak ("db_sequence_create: %s", db_strerror (errno));
2344 }
2345 OUTPUT:
2346 RETVAL
2347
2348 #endif
2349
2350
2351 MODULE = BDB PACKAGE = BDB::Txn
2352
2353 void
2354 DESTROY (DB_TXN_ornuked *txn)
2355 CODE:
2356 if (txn)
2357 txn->abort (txn);
2358
2359 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2360 CODE:
2361 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2362 OUTPUT:
2363 RETVAL
2364
2365 int failed (DB_TXN *txn)
2366 CODE:
2367 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2368 OUTPUT:
2369 RETVAL
2370
2371
2372 MODULE = BDB PACKAGE = BDB::Cursor
2373
2374 void
2375 DESTROY (DBC_ornuked *dbc)
2376 CODE:
2377 if (dbc)
2378 dbc->c_close (dbc);
2379
2380 #if DB_VERSION_MINOR >= 6
2381
2382 int set_priority (DBC *dbc, int priority)
2383 CODE:
2384 dbc->set_priority (dbc, priority);
2385
2386 #endif
2387
2388 #if DB_VERSION_MINOR >= 3
2389
2390 MODULE = BDB PACKAGE = BDB::Sequence
2391
2392 void
2393 DESTROY (DB_SEQUENCE_ornuked *seq)
2394 CODE:
2395 if (seq)
2396 seq->close (seq, 0);
2397
2398 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2399 CODE:
2400 RETVAL = seq->initial_value (seq, value);
2401 OUTPUT:
2402 RETVAL
2403
2404 int set_cachesize (DB_SEQUENCE *seq, U32 size)
2405 CODE:
2406 RETVAL = seq->set_cachesize (seq, size);
2407 OUTPUT:
2408 RETVAL
2409
2410 int set_flags (DB_SEQUENCE *seq, U32 flags)
2411 CODE:
2412 RETVAL = seq->set_flags (seq, flags);
2413 OUTPUT:
2414 RETVAL
2415
2416 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2417 CODE:
2418 RETVAL = seq->set_range (seq, min, max);
2419 OUTPUT:
2420 RETVAL
2421
2422 #endif
2423
2424