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/cvs/BDB/BDB.xs
Revision: 1.13
Committed: Sun Jul 8 11:12:12 2007 UTC (16 years, 10 months ago) by root
Branch: MAIN
Changes since 1.12: +67 -29 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include "xthread.h"
2
3 #include <errno.h>
4
5 #include "EXTERN.h"
6 #include "perl.h"
7 #include "XSUB.h"
8
9 // perl stupidly defines these as macros, breaking
10 // lots and lots of code.
11 #undef open
12 #undef close
13 #undef abort
14 #undef malloc
15 #undef free
16 #undef send
17
18 #include <stddef.h>
19 #include <stdlib.h>
20 #include <errno.h>
21 #include <sys/types.h>
22 #include <limits.h>
23 #include <fcntl.h>
24
25 #ifndef _WIN32
26 # include <sys/time.h>
27 # include <unistd.h>
28 #endif
29
30 #include <db.h>
31
32 #if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
33 # error you need Berkeley DB 4.4 or newer installed
34 #endif
35
36 /* number of seconds after which idle threads exit */
37 #define IDLE_TIMEOUT 10
38
39 typedef DB_ENV DB_ENV_ornull;
40 typedef DB_TXN DB_TXN_ornull;
41 typedef DBC DBC_ornull;
42 typedef DB DB_ornull;
43 typedef DB_SEQUENCE DB_SEQUENCE_ornull;
44
45 typedef SV SV8; /* byte-sv, used for argument-checking */
46 typedef char *octetstring;
47
48 static SV *prepare_cb;
49
50 static char *
51 strdup_ornull (const char *s)
52 {
53 return s ? strdup (s) : 0;
54 }
55
56 static void
57 sv_to_dbt (DBT *dbt, SV *sv)
58 {
59 STRLEN len;
60 char *data = SvPVbyte (sv, len);
61
62 dbt->data = malloc (len);
63 memcpy (dbt->data, data, len);
64 dbt->size = len;
65 dbt->flags = DB_DBT_REALLOC;
66 }
67
68 static void
69 dbt_to_sv (SV *sv, DBT *dbt)
70 {
71 if (sv)
72 {
73 SvREADONLY_off (sv);
74 sv_setpvn_mg (sv, dbt->data, dbt->size);
75 SvREFCNT_dec (sv);
76 }
77
78 free (dbt->data);
79 }
80
81 enum {
82 REQ_QUIT,
83 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
84 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
85 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
86 REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
87 REQ_TXN_COMMIT, REQ_TXN_ABORT,
88 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
89 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
90 };
91
92 typedef struct aio_cb
93 {
94 struct aio_cb *volatile next;
95 SV *callback;
96 int type, pri, result;
97
98 DB_ENV *env;
99 DB *db;
100 DB_TXN *txn;
101 DBC *dbc;
102
103 UV uv1;
104 int int1, int2;
105 U32 uint1, uint2;
106 char *buf1, *buf2;
107 SV *sv1, *sv2, *sv3;
108
109 DBT dbt1, dbt2, dbt3;
110 DB_KEY_RANGE key_range;
111 DB_SEQUENCE *seq;
112 db_seq_t seq_t;
113 } aio_cb;
114
115 typedef aio_cb *aio_req;
116
117 enum {
118 PRI_MIN = -4,
119 PRI_MAX = 4,
120
121 DEFAULT_PRI = 0,
122 PRI_BIAS = -PRI_MIN,
123 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
124 };
125
126 #define AIO_TICKS ((1000000 + 1023) >> 10)
127
128 static unsigned int max_poll_time = 0;
129 static unsigned int max_poll_reqs = 0;
130
131 /* calculcate time difference in ~1/AIO_TICKS of a second */
132 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
133 {
134 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
135 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
136 }
137
138 static int next_pri = DEFAULT_PRI + PRI_BIAS;
139
140 static unsigned int started, idle, wanted;
141
142 /* worker threads management */
143 static mutex_t wrklock = X_MUTEX_INIT;
144
145 typedef struct worker {
146 /* locked by wrklock */
147 struct worker *prev, *next;
148
149 thread_t tid;
150
151 /* locked by reslock, reqlock or wrklock */
152 aio_req req; /* currently processed request */
153 void *dbuf;
154 DIR *dirp;
155 } worker;
156
157 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
158
159 static void worker_clear (worker *wrk)
160 {
161 }
162
163 static void worker_free (worker *wrk)
164 {
165 wrk->next->prev = wrk->prev;
166 wrk->prev->next = wrk->next;
167
168 free (wrk);
169 }
170
171 static volatile unsigned int nreqs, nready, npending;
172 static volatile unsigned int max_idle = 4;
173 static volatile unsigned int max_outstanding = 0xffffffff;
174 static int respipe [2], respipe_osf [2];
175
176 static mutex_t reslock = X_MUTEX_INIT;
177 static mutex_t reqlock = X_MUTEX_INIT;
178 static cond_t reqwait = X_COND_INIT;
179
180 #if WORDACCESS_UNSAFE
181
182 static unsigned int get_nready ()
183 {
184 unsigned int retval;
185
186 X_LOCK (reqlock);
187 retval = nready;
188 X_UNLOCK (reqlock);
189
190 return retval;
191 }
192
193 static unsigned int get_npending ()
194 {
195 unsigned int retval;
196
197 X_LOCK (reslock);
198 retval = npending;
199 X_UNLOCK (reslock);
200
201 return retval;
202 }
203
204 static unsigned int get_nthreads ()
205 {
206 unsigned int retval;
207
208 X_LOCK (wrklock);
209 retval = started;
210 X_UNLOCK (wrklock);
211
212 return retval;
213 }
214
215 #else
216
217 # define get_nready() nready
218 # define get_npending() npending
219 # define get_nthreads() started
220
221 #endif
222
223 /*
224 * a somewhat faster data structure might be nice, but
225 * with 8 priorities this actually needs <20 insns
226 * per shift, the most expensive operation.
227 */
228 typedef struct {
229 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
230 int size;
231 } reqq;
232
233 static reqq req_queue;
234 static reqq res_queue;
235
236 int reqq_push (reqq *q, aio_req req)
237 {
238 int pri = req->pri;
239 req->next = 0;
240
241 if (q->qe[pri])
242 {
243 q->qe[pri]->next = req;
244 q->qe[pri] = req;
245 }
246 else
247 q->qe[pri] = q->qs[pri] = req;
248
249 return q->size++;
250 }
251
252 aio_req reqq_shift (reqq *q)
253 {
254 int pri;
255
256 if (!q->size)
257 return 0;
258
259 --q->size;
260
261 for (pri = NUM_PRI; pri--; )
262 {
263 aio_req req = q->qs[pri];
264
265 if (req)
266 {
267 if (!(q->qs[pri] = req->next))
268 q->qe[pri] = 0;
269
270 return req;
271 }
272 }
273
274 abort ();
275 }
276
277 static int poll_cb ();
278 static void req_free (aio_req req);
279 static void req_cancel (aio_req req);
280
281 static int req_invoke (aio_req req)
282 {
283 dSP;
284
285 if (SvOK (req->callback))
286 {
287 ENTER;
288 SAVETMPS;
289 PUSHMARK (SP);
290
291 switch (req->type)
292 {
293 case REQ_DB_CLOSE:
294 SvREFCNT_dec (req->sv1);
295 break;
296
297 case REQ_DB_GET:
298 case REQ_DB_PGET:
299 dbt_to_sv (req->sv3, &req->dbt3);
300 break;
301
302 case REQ_C_GET:
303 case REQ_C_PGET:
304 dbt_to_sv (req->sv1, &req->dbt1);
305 dbt_to_sv (req->sv2, &req->dbt2);
306 dbt_to_sv (req->sv3, &req->dbt3);
307 break;
308
309 case REQ_DB_KEY_RANGE:
310 {
311 AV *av = newAV ();
312
313 av_push (av, newSVnv (req->key_range.less));
314 av_push (av, newSVnv (req->key_range.equal));
315 av_push (av, newSVnv (req->key_range.greater));
316
317 SvREADONLY_off (req->sv1);
318 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
319 SvREFCNT_dec (req->sv1);
320 }
321 break;
322
323 case REQ_SEQ_GET:
324 SvREADONLY_off (req->sv1);
325
326 if (sizeof (IV) > 4)
327 sv_setiv_mg (req->sv1, req->seq_t);
328 else
329 sv_setnv_mg (req->sv1, req->seq_t);
330
331 SvREFCNT_dec (req->sv1);
332 break;
333 }
334
335 errno = req->result;
336
337 PUTBACK;
338 call_sv (req->callback, G_VOID | G_EVAL);
339 SPAGAIN;
340
341 FREETMPS;
342 LEAVE;
343 }
344
345 return !SvTRUE (ERRSV);
346 }
347
348 static void req_free (aio_req req)
349 {
350 free (req->buf1);
351 free (req->buf2);
352 Safefree (req);
353 }
354
355 #ifdef USE_SOCKETS_AS_HANDLES
356 # define TO_SOCKET(x) (win32_get_osfhandle (x))
357 #else
358 # define TO_SOCKET(x) (x)
359 #endif
360
361 static void
362 create_pipe (int fd[2])
363 {
364 #ifdef _WIN32
365 int arg = 1;
366 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
367 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
368 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
369 #else
370 if (pipe (fd)
371 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
372 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
373 #endif
374 croak ("unable to initialize result pipe");
375
376 respipe_osf [0] = TO_SOCKET (respipe [0]);
377 respipe_osf [1] = TO_SOCKET (respipe [1]);
378 }
379
380 X_THREAD_PROC (bdb_proc);
381
382 static void start_thread (void)
383 {
384 worker *wrk = calloc (1, sizeof (worker));
385
386 if (!wrk)
387 croak ("unable to allocate worker thread data");
388
389 X_LOCK (wrklock);
390 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
391 {
392 wrk->prev = &wrk_first;
393 wrk->next = wrk_first.next;
394 wrk_first.next->prev = wrk;
395 wrk_first.next = wrk;
396 ++started;
397 }
398 else
399 free (wrk);
400
401 X_UNLOCK (wrklock);
402 }
403
404 static void maybe_start_thread ()
405 {
406 if (get_nthreads () >= wanted)
407 return;
408
409 /* todo: maybe use idle here, but might be less exact */
410 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
411 return;
412
413 start_thread ();
414 }
415
416 static void req_send (aio_req req)
417 {
418 SV *wait_callback = 0;
419
420 // synthesize callback if none given
421 if (!SvOK (req->callback))
422 {
423 int count;
424
425 dSP;
426 PUSHMARK (SP);
427 PUTBACK;
428 count = call_sv (prepare_cb, G_ARRAY);
429 SPAGAIN;
430
431 if (count != 2)
432 croak ("prepare callback must return exactly two values\n");
433
434 wait_callback = SvREFCNT_inc (POPs);
435 SvREFCNT_dec (req->callback);
436 req->callback = SvREFCNT_inc (POPs);
437 }
438
439 ++nreqs;
440
441 X_LOCK (reqlock);
442 ++nready;
443 reqq_push (&req_queue, req);
444 X_COND_SIGNAL (reqwait);
445 X_UNLOCK (reqlock);
446
447 maybe_start_thread ();
448
449 if (wait_callback)
450 {
451 dSP;
452 PUSHMARK (SP);
453 PUTBACK;
454 call_sv (wait_callback, G_DISCARD);
455 SvREFCNT_dec (wait_callback);
456 }
457 }
458
459 static void end_thread (void)
460 {
461 aio_req req;
462
463 Newz (0, req, 1, aio_cb);
464
465 req->type = REQ_QUIT;
466 req->pri = PRI_MAX + PRI_BIAS;
467
468 X_LOCK (reqlock);
469 reqq_push (&req_queue, req);
470 X_COND_SIGNAL (reqwait);
471 X_UNLOCK (reqlock);
472
473 X_LOCK (wrklock);
474 --started;
475 X_UNLOCK (wrklock);
476 }
477
478 static void set_max_idle (int nthreads)
479 {
480 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
481 max_idle = nthreads <= 0 ? 1 : nthreads;
482 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
483 }
484
485 static void min_parallel (int nthreads)
486 {
487 if (wanted < nthreads)
488 wanted = nthreads;
489 }
490
491 static void max_parallel (int nthreads)
492 {
493 if (wanted > nthreads)
494 wanted = nthreads;
495
496 while (started > wanted)
497 end_thread ();
498 }
499
500 static void poll_wait ()
501 {
502 fd_set rfd;
503
504 while (nreqs)
505 {
506 int size;
507 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
508 size = res_queue.size;
509 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
510
511 if (size)
512 return;
513
514 maybe_start_thread ();
515
516 FD_ZERO (&rfd);
517 FD_SET (respipe [0], &rfd);
518
519 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
520 }
521 }
522
523 static int poll_cb ()
524 {
525 dSP;
526 int count = 0;
527 int maxreqs = max_poll_reqs;
528 int do_croak = 0;
529 struct timeval tv_start, tv_now;
530 aio_req req;
531
532 if (max_poll_time)
533 gettimeofday (&tv_start, 0);
534
535 for (;;)
536 {
537 for (;;)
538 {
539 maybe_start_thread ();
540
541 X_LOCK (reslock);
542 req = reqq_shift (&res_queue);
543
544 if (req)
545 {
546 --npending;
547
548 if (!res_queue.size)
549 {
550 /* read any signals sent by the worker threads */
551 char buf [4];
552 while (respipe_read (respipe [0], buf, 4) == 4)
553 ;
554 }
555 }
556
557 X_UNLOCK (reslock);
558
559 if (!req)
560 break;
561
562 --nreqs;
563
564 if (!req_invoke (req))
565 {
566 req_free (req);
567 croak (0);
568 }
569
570 count++;
571
572 req_free (req);
573
574 if (maxreqs && !--maxreqs)
575 break;
576
577 if (max_poll_time)
578 {
579 gettimeofday (&tv_now, 0);
580
581 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
582 break;
583 }
584 }
585
586 if (nreqs <= max_outstanding)
587 break;
588
589 poll_wait ();
590
591 ++maxreqs;
592 }
593
594 return count;
595 }
596
597 /*****************************************************************************/
598
599 X_THREAD_PROC (bdb_proc)
600 {
601 aio_req req;
602 struct timespec ts;
603 worker *self = (worker *)thr_arg;
604
605 /* try to distribute timeouts somewhat evenly */
606 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
607
608 for (;;)
609 {
610 ts.tv_sec = time (0) + IDLE_TIMEOUT;
611
612 X_LOCK (reqlock);
613
614 for (;;)
615 {
616 self->req = req = reqq_shift (&req_queue);
617
618 if (req)
619 break;
620
621 ++idle;
622
623 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
624 == ETIMEDOUT)
625 {
626 if (idle > max_idle)
627 {
628 --idle;
629 X_UNLOCK (reqlock);
630 X_LOCK (wrklock);
631 --started;
632 X_UNLOCK (wrklock);
633 goto quit;
634 }
635
636 /* we are allowed to idle, so do so without any timeout */
637 X_COND_WAIT (reqwait, reqlock);
638 ts.tv_sec = time (0) + IDLE_TIMEOUT;
639 }
640
641 --idle;
642 }
643
644 --nready;
645
646 X_UNLOCK (reqlock);
647
648 switch (req->type)
649 {
650 case REQ_QUIT:
651 goto quit;
652
653 case REQ_ENV_OPEN:
654 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
655 break;
656
657 case REQ_ENV_CLOSE:
658 req->result = req->env->close (req->env, req->uint1);
659 break;
660
661 case REQ_ENV_TXN_CHECKPOINT:
662 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
663 break;
664
665 case REQ_ENV_LOCK_DETECT:
666 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
667 break;
668
669 case REQ_ENV_MEMP_SYNC:
670 req->result = req->env->memp_sync (req->env, 0);
671 break;
672
673 case REQ_ENV_MEMP_TRICKLE:
674 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
675 break;
676
677 case REQ_DB_OPEN:
678 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
679 break;
680
681 case REQ_DB_CLOSE:
682 req->result = req->db->close (req->db, req->uint1);
683 break;
684
685 case REQ_DB_COMPACT:
686 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
687 break;
688
689 case REQ_DB_SYNC:
690 req->result = req->db->sync (req->db, req->uint1);
691 break;
692
693 case REQ_DB_PUT:
694 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
695 break;
696
697 case REQ_DB_GET:
698 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
699 break;
700
701 case REQ_DB_PGET:
702 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
703 break;
704
705 case REQ_DB_DEL:
706 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
707 break;
708
709 case REQ_DB_KEY_RANGE:
710 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
711 break;
712
713 case REQ_TXN_COMMIT:
714 req->result = req->txn->commit (req->txn, req->uint1);
715 break;
716
717 case REQ_TXN_ABORT:
718 req->result = req->txn->abort (req->txn);
719 break;
720
721 case REQ_C_CLOSE:
722 req->result = req->dbc->c_close (req->dbc);
723 break;
724
725 case REQ_C_COUNT:
726 {
727 db_recno_t recno;
728 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
729 req->uv1 = recno;
730 }
731 break;
732
733 case REQ_C_PUT:
734 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
735 break;
736
737 case REQ_C_GET:
738 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
739 break;
740
741 case REQ_C_PGET:
742 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
743 break;
744
745 case REQ_C_DEL:
746 req->result = req->dbc->c_del (req->dbc, req->uint1);
747 break;
748
749 case REQ_SEQ_OPEN:
750 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
751 break;
752
753 case REQ_SEQ_CLOSE:
754 req->result = req->seq->close (req->seq, req->uint1);
755 break;
756
757 case REQ_SEQ_GET:
758 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
759 break;
760
761 case REQ_SEQ_REMOVE:
762 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
763 break;
764
765 default:
766 req->result = ENOSYS;
767 break;
768 }
769
770 X_LOCK (reslock);
771
772 ++npending;
773
774 if (!reqq_push (&res_queue, req))
775 /* write a dummy byte to the pipe so fh becomes ready */
776 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
777
778 self->req = 0;
779 worker_clear (self);
780
781 X_UNLOCK (reslock);
782 }
783
784 quit:
785 X_LOCK (wrklock);
786 worker_free (self);
787 X_UNLOCK (wrklock);
788
789 return 0;
790 }
791
792 /*****************************************************************************/
793
794 static void atfork_prepare (void)
795 {
796 X_LOCK (wrklock);
797 X_LOCK (reqlock);
798 X_LOCK (reslock);
799 }
800
801 static void atfork_parent (void)
802 {
803 X_UNLOCK (reslock);
804 X_UNLOCK (reqlock);
805 X_UNLOCK (wrklock);
806 }
807
808 static void atfork_child (void)
809 {
810 aio_req prv;
811
812 while (prv = reqq_shift (&req_queue))
813 req_free (prv);
814
815 while (prv = reqq_shift (&res_queue))
816 req_free (prv);
817
818 while (wrk_first.next != &wrk_first)
819 {
820 worker *wrk = wrk_first.next;
821
822 if (wrk->req)
823 req_free (wrk->req);
824
825 worker_clear (wrk);
826 worker_free (wrk);
827 }
828
829 started = 0;
830 idle = 0;
831 nreqs = 0;
832 nready = 0;
833 npending = 0;
834
835 respipe_close (respipe [0]);
836 respipe_close (respipe [1]);
837
838 create_pipe (respipe);
839
840 atfork_parent ();
841 }
842
843 #define dREQ(reqtype) \
844 aio_req req; \
845 int req_pri = next_pri; \
846 next_pri = DEFAULT_PRI + PRI_BIAS; \
847 \
848 if (SvOK (callback) && !SvROK (callback)) \
849 croak ("callback must be undef or of reference type"); \
850 \
851 Newz (0, req, 1, aio_cb); \
852 if (!req) \
853 croak ("out of memory during aio_req allocation"); \
854 \
855 req->callback = newSVsv (callback); \
856 req->type = (reqtype); \
857 req->pri = req_pri
858
859 #define REQ_SEND \
860 req_send (req)
861
862 #define SvPTR(var, arg, type, class, nullok) \
863 if (!SvOK (arg)) \
864 { \
865 if (!nullok) \
866 croak (# var " must be a " # class " object, not undef"); \
867 \
868 (var) = 0; \
869 } \
870 else if (sv_derived_from ((arg), # class)) \
871 { \
872 IV tmp = SvIV ((SV*) SvRV (arg)); \
873 (var) = INT2PTR (type, tmp); \
874 if (!var) \
875 croak (# var " is not a valid " # class " object anymore"); \
876 } \
877 else \
878 croak (# var " is not of type " # class); \
879 \
880
881 static void
882 ptr_nuke (SV *sv)
883 {
884 assert (SvROK (sv));
885 sv_setiv (SvRV (sv), 0);
886 }
887
888 MODULE = BDB PACKAGE = BDB
889
890 PROTOTYPES: ENABLE
891
892 BOOT:
893 {
894 HV *stash = gv_stashpv ("BDB", 1);
895
896 static const struct {
897 const char *name;
898 IV iv;
899 } *civ, const_iv[] = {
900 #define const_iv(name) { # name, (IV)DB_ ## name },
901 const_iv (RPCCLIENT)
902 const_iv (INIT_CDB)
903 const_iv (INIT_LOCK)
904 const_iv (INIT_LOG)
905 const_iv (INIT_MPOOL)
906 const_iv (INIT_REP)
907 const_iv (INIT_TXN)
908 const_iv (RECOVER)
909 const_iv (INIT_TXN)
910 const_iv (RECOVER_FATAL)
911 const_iv (CREATE)
912 const_iv (USE_ENVIRON)
913 const_iv (USE_ENVIRON_ROOT)
914 const_iv (LOCKDOWN)
915 const_iv (PRIVATE)
916 const_iv (REGISTER)
917 const_iv (SYSTEM_MEM)
918 const_iv (AUTO_COMMIT)
919 const_iv (CDB_ALLDB)
920 const_iv (DIRECT_DB)
921 const_iv (DIRECT_LOG)
922 const_iv (DSYNC_DB)
923 const_iv (DSYNC_LOG)
924 const_iv (LOG_AUTOREMOVE)
925 const_iv (LOG_INMEMORY)
926 const_iv (NOLOCKING)
927 const_iv (NOMMAP)
928 const_iv (NOPANIC)
929 const_iv (OVERWRITE)
930 const_iv (PANIC_ENVIRONMENT)
931 const_iv (REGION_INIT)
932 const_iv (TIME_NOTGRANTED)
933 const_iv (TXN_NOSYNC)
934 const_iv (TXN_WRITE_NOSYNC)
935 const_iv (WRITECURSOR)
936 const_iv (YIELDCPU)
937 const_iv (ENCRYPT_AES)
938 const_iv (XA_CREATE)
939 const_iv (BTREE)
940 const_iv (HASH)
941 const_iv (QUEUE)
942 const_iv (RECNO)
943 const_iv (UNKNOWN)
944 const_iv (EXCL)
945 const_iv (READ_COMMITTED)
946 const_iv (READ_UNCOMMITTED)
947 const_iv (TRUNCATE)
948 const_iv (NOSYNC)
949 const_iv (CHKSUM)
950 const_iv (ENCRYPT)
951 const_iv (TXN_NOT_DURABLE)
952 const_iv (DUP)
953 const_iv (DUPSORT)
954 const_iv (RECNUM)
955 const_iv (RENUMBER)
956 const_iv (REVSPLITOFF)
957 const_iv (INORDER)
958 const_iv (CONSUME)
959 const_iv (CONSUME_WAIT)
960 const_iv (GET_BOTH)
961 const_iv (GET_BOTH_RANGE)
962 //const_iv (SET_RECNO)
963 //const_iv (MULTIPLE)
964 const_iv (SNAPSHOT)
965 const_iv (JOIN_ITEM)
966 const_iv (RMW)
967
968 const_iv (NOTFOUND)
969 const_iv (KEYEMPTY)
970 const_iv (LOCK_DEADLOCK)
971 const_iv (LOCK_NOTGRANTED)
972 const_iv (RUNRECOVERY)
973 const_iv (OLD_VERSION)
974 const_iv (REP_HANDLE_DEAD)
975 const_iv (REP_LOCKOUT)
976 const_iv (SECONDARY_BAD)
977
978 const_iv (FREE_SPACE)
979 const_iv (FREELIST_ONLY)
980
981 const_iv (APPEND)
982 const_iv (NODUPDATA)
983 const_iv (NOOVERWRITE)
984
985 const_iv (TXN_NOWAIT)
986 const_iv (TXN_SYNC)
987
988 const_iv (SET_LOCK_TIMEOUT)
989 const_iv (SET_TXN_TIMEOUT)
990
991 const_iv (JOIN_ITEM)
992 const_iv (FIRST)
993 const_iv (NEXT)
994 const_iv (NEXT_DUP)
995 const_iv (NEXT_NODUP)
996 const_iv (PREV)
997 const_iv (PREV_NODUP)
998 const_iv (SET)
999 const_iv (SET_RANGE)
1000 const_iv (LAST)
1001 const_iv (BEFORE)
1002 const_iv (AFTER)
1003 const_iv (CURRENT)
1004 const_iv (KEYFIRST)
1005 const_iv (KEYLAST)
1006 const_iv (NODUPDATA)
1007
1008 const_iv (FORCE)
1009
1010 const_iv (LOCK_DEFAULT)
1011 const_iv (LOCK_EXPIRE)
1012 const_iv (LOCK_MAXLOCKS)
1013 const_iv (LOCK_MAXWRITE)
1014 const_iv (LOCK_MINLOCKS)
1015 const_iv (LOCK_MINWRITE)
1016 const_iv (LOCK_OLDEST)
1017 const_iv (LOCK_RANDOM)
1018 const_iv (LOCK_YOUNGEST)
1019
1020 const_iv (SEQ_DEC)
1021 const_iv (SEQ_INC)
1022 const_iv (SEQ_WRAP)
1023 #if DB_VERSION_MINOR >= 5
1024 const_iv (MULTIVERSION)
1025 const_iv (TXN_SNAPSHOT)
1026 #endif
1027 };
1028
1029 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1030 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1031
1032 create_pipe (respipe);
1033
1034 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1035 #ifdef _WIN32
1036 X_MUTEX_CHECK (wrklock);
1037 X_MUTEX_CHECK (reslock);
1038 X_MUTEX_CHECK (reqlock);
1039
1040 X_COND_CHECK (reqwait);
1041 #endif
1042 }
1043
1044 void
1045 max_poll_reqs (int nreqs)
1046 PROTOTYPE: $
1047 CODE:
1048 max_poll_reqs = nreqs;
1049
1050 void
1051 max_poll_time (double nseconds)
1052 PROTOTYPE: $
1053 CODE:
1054 max_poll_time = nseconds * AIO_TICKS;
1055
1056 void
1057 min_parallel (int nthreads)
1058 PROTOTYPE: $
1059
1060 void
1061 max_parallel (int nthreads)
1062 PROTOTYPE: $
1063
1064 void
1065 max_idle (int nthreads)
1066 PROTOTYPE: $
1067 CODE:
1068 set_max_idle (nthreads);
1069
1070 int
1071 max_outstanding (int maxreqs)
1072 PROTOTYPE: $
1073 CODE:
1074 RETVAL = max_outstanding;
1075 max_outstanding = maxreqs;
1076 OUTPUT:
1077 RETVAL
1078
1079 int
1080 dbreq_pri (int pri = 0)
1081 PROTOTYPE: ;$
1082 CODE:
1083 RETVAL = next_pri - PRI_BIAS;
1084 if (items > 0)
1085 {
1086 if (pri < PRI_MIN) pri = PRI_MIN;
1087 if (pri > PRI_MAX) pri = PRI_MAX;
1088 next_pri = pri + PRI_BIAS;
1089 }
1090 OUTPUT:
1091 RETVAL
1092
1093 void
1094 dbreq_nice (int nice = 0)
1095 CODE:
1096 nice = next_pri - nice;
1097 if (nice < PRI_MIN) nice = PRI_MIN;
1098 if (nice > PRI_MAX) nice = PRI_MAX;
1099 next_pri = nice + PRI_BIAS;
1100
1101 void
1102 flush ()
1103 PROTOTYPE:
1104 CODE:
1105 while (nreqs)
1106 {
1107 poll_wait ();
1108 poll_cb ();
1109 }
1110
1111 int
1112 poll ()
1113 PROTOTYPE:
1114 CODE:
1115 poll_wait ();
1116 RETVAL = poll_cb ();
1117 OUTPUT:
1118 RETVAL
1119
1120 int
1121 poll_fileno ()
1122 PROTOTYPE:
1123 CODE:
1124 RETVAL = respipe [0];
1125 OUTPUT:
1126 RETVAL
1127
1128 int
1129 poll_cb (...)
1130 PROTOTYPE:
1131 CODE:
1132 RETVAL = poll_cb ();
1133 OUTPUT:
1134 RETVAL
1135
1136 void
1137 poll_wait ()
1138 PROTOTYPE:
1139 CODE:
1140 poll_wait ();
1141
1142 int
1143 nreqs ()
1144 PROTOTYPE:
1145 CODE:
1146 RETVAL = nreqs;
1147 OUTPUT:
1148 RETVAL
1149
1150 int
1151 nready ()
1152 PROTOTYPE:
1153 CODE:
1154 RETVAL = get_nready ();
1155 OUTPUT:
1156 RETVAL
1157
1158 int
1159 npending ()
1160 PROTOTYPE:
1161 CODE:
1162 RETVAL = get_npending ();
1163 OUTPUT:
1164 RETVAL
1165
1166 int
1167 nthreads ()
1168 PROTOTYPE:
1169 CODE:
1170 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1171 RETVAL = started;
1172 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1173 OUTPUT:
1174 RETVAL
1175
1176 void
1177 set_sync_prepare (SV *cb)
1178 PROTOTYPE: &
1179 CODE:
1180 SvREFCNT_dec (prepare_cb);
1181 prepare_cb = newSVsv (cb);
1182
1183
1184 DB_ENV *
1185 db_env_create (U32 env_flags = 0)
1186 CODE:
1187 {
1188 errno = db_env_create (&RETVAL, env_flags);
1189 if (errno)
1190 croak ("db_env_create: %s", db_strerror (errno));
1191 }
1192 OUTPUT:
1193 RETVAL
1194
1195 void
1196 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1197 CODE:
1198 {
1199 dREQ (REQ_ENV_OPEN);
1200
1201 env->set_thread_count (env, get_nthreads ());
1202
1203 req->env = env;
1204 req->uint1 = open_flags | DB_THREAD;
1205 req->int1 = mode;
1206 req->buf1 = strdup_ornull (db_home);
1207 REQ_SEND;
1208 }
1209
1210 void
1211 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
1212 CODE:
1213 {
1214 dREQ (REQ_ENV_CLOSE);
1215 req->env = env;
1216 req->uint1 = flags;
1217 REQ_SEND;
1218 ptr_nuke (ST (0));
1219 }
1220
1221 void
1222 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1223 CODE:
1224 {
1225 dREQ (REQ_ENV_TXN_CHECKPOINT);
1226 req->env = env;
1227 req->uint1 = kbyte;
1228 req->int1 = min;
1229 req->uint2 = flags;
1230 REQ_SEND;
1231 }
1232
1233 void
1234 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
1235 CODE:
1236 {
1237 dREQ (REQ_ENV_LOCK_DETECT);
1238 req->env = env;
1239 req->uint1 = flags;
1240 req->uint2 = atype;
1241 REQ_SEND;
1242 }
1243
1244 void
1245 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
1246 CODE:
1247 {
1248 dREQ (REQ_ENV_MEMP_SYNC);
1249 req->env = env;
1250 REQ_SEND;
1251 }
1252
1253 void
1254 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
1255 CODE:
1256 {
1257 dREQ (REQ_ENV_MEMP_TRICKLE);
1258 req->env = env;
1259 req->int1 = percent;
1260 REQ_SEND;
1261 }
1262
1263
1264 DB *
1265 db_create (DB_ENV *env = 0, U32 flags = 0)
1266 CODE:
1267 {
1268 errno = db_create (&RETVAL, env, flags);
1269 if (errno)
1270 croak ("db_create: %s", db_strerror (errno));
1271
1272 if (RETVAL)
1273 RETVAL->app_private = (void *)newSVsv (ST (0));
1274 }
1275 OUTPUT:
1276 RETVAL
1277
1278 void
1279 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
1280 CODE:
1281 {
1282 dREQ (REQ_DB_OPEN);
1283 req->db = db;
1284 req->txn = txnid;
1285 req->buf1 = strdup_ornull (file);
1286 req->buf2 = strdup_ornull (database);
1287 req->int1 = type;
1288 req->uint1 = flags | DB_THREAD;
1289 req->int2 = mode;
1290 REQ_SEND;
1291 }
1292
1293 void
1294 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1295 CODE:
1296 {
1297 dREQ (REQ_DB_CLOSE);
1298 req->db = db;
1299 req->uint1 = flags;
1300 req->sv1 = (SV *)db->app_private;
1301 REQ_SEND;
1302 ptr_nuke (ST (0));
1303 }
1304
1305 void
1306 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 = &PL_sv_undef)
1307 CODE:
1308 {
1309 dREQ (REQ_DB_COMPACT);
1310 req->db = db;
1311 req->txn = txn;
1312 sv_to_dbt (&req->dbt1, start);
1313 sv_to_dbt (&req->dbt2, stop);
1314 req->uint1 = flags;
1315 REQ_SEND;
1316 }
1317
1318 void
1319 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1320 CODE:
1321 {
1322 dREQ (REQ_DB_SYNC);
1323 req->db = db;
1324 req->uint1 = flags;
1325 REQ_SEND;
1326 }
1327
1328 void
1329 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
1330 CODE:
1331 {
1332 dREQ (REQ_DB_KEY_RANGE);
1333 req->db = db;
1334 req->txn = txn;
1335 sv_to_dbt (&req->dbt1, key);
1336 req->uint1 = flags;
1337 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1338 REQ_SEND;
1339 }
1340
1341 void
1342 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1343 CODE:
1344 {
1345 dREQ (REQ_DB_PUT);
1346 req->db = db;
1347 req->txn = txn;
1348 sv_to_dbt (&req->dbt1, key);
1349 sv_to_dbt (&req->dbt2, data);
1350 req->uint1 = flags;
1351 REQ_SEND;
1352 }
1353
1354 void
1355 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1356 CODE:
1357 {
1358 dREQ (REQ_DB_GET);
1359 req->db = db;
1360 req->txn = txn;
1361 req->uint1 = flags;
1362 sv_to_dbt (&req->dbt1, key);
1363 req->dbt3.flags = DB_DBT_MALLOC;
1364 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1365 REQ_SEND;
1366 }
1367
1368 void
1369 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1370 CODE:
1371 {
1372 dREQ (REQ_DB_PGET);
1373 req->db = db;
1374 req->txn = txn;
1375 req->uint1 = flags;
1376 sv_to_dbt (&req->dbt1, key);
1377 sv_to_dbt (&req->dbt2, pkey);
1378 req->dbt3.flags = DB_DBT_MALLOC;
1379 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1380 REQ_SEND;
1381 }
1382
1383 void
1384 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1385 CODE:
1386 {
1387 dREQ (REQ_DB_DEL);
1388 req->db = db;
1389 req->txn = txn;
1390 req->uint1 = flags;
1391 sv_to_dbt (&req->dbt1, key);
1392 REQ_SEND;
1393 }
1394
1395 void
1396 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1397 CODE:
1398 {
1399 dREQ (REQ_TXN_COMMIT);
1400 req->txn = txn;
1401 req->uint1 = flags;
1402 REQ_SEND;
1403 ptr_nuke (ST (0));
1404 }
1405
1406 void
1407 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
1408 CODE:
1409 {
1410 dREQ (REQ_TXN_ABORT);
1411 req->txn = txn;
1412 REQ_SEND;
1413 ptr_nuke (ST (0));
1414 }
1415
1416 void
1417 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1418 CODE:
1419 {
1420 dREQ (REQ_C_CLOSE);
1421 req->dbc = dbc;
1422 REQ_SEND;
1423 ptr_nuke (ST (0));
1424 }
1425
1426 void
1427 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
1428 CODE:
1429 {
1430 dREQ (REQ_C_COUNT);
1431 req->dbc = dbc;
1432 req->sv1 = SvREFCNT_inc (count);
1433 REQ_SEND;
1434 }
1435
1436 void
1437 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1438 CODE:
1439 {
1440 dREQ (REQ_C_PUT);
1441 req->dbc = dbc;
1442 sv_to_dbt (&req->dbt1, key);
1443 sv_to_dbt (&req->dbt2, data);
1444 req->uint1 = flags;
1445 REQ_SEND;
1446 }
1447
1448 void
1449 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1450 CODE:
1451 {
1452 dREQ (REQ_C_GET);
1453 req->dbc = dbc;
1454 req->uint1 = flags;
1455 if ((flags & DB_SET) == DB_SET
1456 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1457 sv_to_dbt (&req->dbt1, key);
1458 else
1459 req->dbt1.flags = DB_DBT_MALLOC;
1460
1461 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1462
1463 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1464 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1465 sv_to_dbt (&req->dbt3, data);
1466 else
1467 req->dbt3.flags = DB_DBT_MALLOC;
1468
1469 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1470 REQ_SEND;
1471 }
1472
1473 void
1474 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1475 CODE:
1476 {
1477 dREQ (REQ_C_PGET);
1478 req->dbc = dbc;
1479 req->uint1 = flags;
1480 if ((flags & DB_SET) == DB_SET
1481 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1482 sv_to_dbt (&req->dbt1, key);
1483 else
1484 req->dbt1.flags = DB_DBT_MALLOC;
1485
1486 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1487
1488 req->dbt2.flags = DB_DBT_MALLOC;
1489 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1490
1491 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1492 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1493 sv_to_dbt (&req->dbt3, data);
1494 else
1495 req->dbt3.flags = DB_DBT_MALLOC;
1496
1497 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1498 REQ_SEND;
1499 }
1500
1501 void
1502 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
1503 CODE:
1504 {
1505 dREQ (REQ_C_DEL);
1506 req->dbc = dbc;
1507 req->uint1 = flags;
1508 REQ_SEND;
1509 }
1510
1511
1512 void
1513 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1514 CODE:
1515 {
1516 dREQ (REQ_SEQ_OPEN);
1517 req->seq = seq;
1518 req->txn = txnid;
1519 req->uint1 = flags | DB_THREAD;
1520 sv_to_dbt (&req->dbt1, key);
1521 REQ_SEND;
1522 }
1523
1524 void
1525 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
1526 CODE:
1527 {
1528 dREQ (REQ_SEQ_CLOSE);
1529 req->seq = seq;
1530 req->uint1 = flags;
1531 REQ_SEND;
1532 ptr_nuke (ST (0));
1533 }
1534
1535 void
1536 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
1537 CODE:
1538 {
1539 dREQ (REQ_SEQ_GET);
1540 req->seq = seq;
1541 req->txn = txnid;
1542 req->int1 = delta;
1543 req->uint1 = flags;
1544 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1545 REQ_SEND;
1546 }
1547
1548 void
1549 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1550 CODE:
1551 {
1552 dREQ (REQ_SEQ_REMOVE);
1553 req->seq = seq;
1554 req->txn = txnid;
1555 req->uint1 = flags;
1556 REQ_SEND;
1557 }
1558
1559
1560 MODULE = BDB PACKAGE = BDB::Env
1561
1562 void
1563 DESTROY (DB_ENV_ornull *env)
1564 CODE:
1565 if (env)
1566 env->close (env, 0);
1567
1568 int set_data_dir (DB_ENV *env, const char *dir)
1569 CODE:
1570 RETVAL = env->set_data_dir (env, dir);
1571 OUTPUT:
1572 RETVAL
1573
1574 int set_tmp_dir (DB_ENV *env, const char *dir)
1575 CODE:
1576 RETVAL = env->set_tmp_dir (env, dir);
1577 OUTPUT:
1578 RETVAL
1579
1580 int set_lg_dir (DB_ENV *env, const char *dir)
1581 CODE:
1582 RETVAL = env->set_lg_dir (env, dir);
1583 OUTPUT:
1584 RETVAL
1585
1586 int set_shm_key (DB_ENV *env, long shm_key)
1587 CODE:
1588 RETVAL = env->set_shm_key (env, shm_key);
1589 OUTPUT:
1590 RETVAL
1591
1592 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1593 CODE:
1594 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1595 OUTPUT:
1596 RETVAL
1597
1598 int set_flags (DB_ENV *env, U32 flags, int onoff)
1599 CODE:
1600 RETVAL = env->set_flags (env, flags, onoff);
1601 OUTPUT:
1602 RETVAL
1603
1604 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1605 CODE:
1606 RETVAL = env->set_encrypt (env, password, flags);
1607 OUTPUT:
1608 RETVAL
1609
1610 int set_timeout (DB_ENV *env, NV timeout, U32 flags)
1611 CODE:
1612 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1613 OUTPUT:
1614 RETVAL
1615
1616 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
1617 CODE:
1618 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
1619 OUTPUT:
1620 RETVAL
1621
1622 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
1623 CODE:
1624 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
1625 OUTPUT:
1626 RETVAL
1627
1628 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
1629 CODE:
1630 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
1631 OUTPUT:
1632 RETVAL
1633
1634 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
1635 CODE:
1636 RETVAL = env->set_lk_detect (env, detect);
1637 OUTPUT:
1638 RETVAL
1639
1640 int set_lk_max_lockers (DB_ENV *env, U32 max)
1641 CODE:
1642 RETVAL = env->set_lk_max_lockers (env, max);
1643 OUTPUT:
1644 RETVAL
1645
1646 int set_lk_max_locks (DB_ENV *env, U32 max)
1647 CODE:
1648 RETVAL = env->set_lk_max_locks (env, max);
1649 OUTPUT:
1650 RETVAL
1651
1652 int set_lk_max_objects (DB_ENV *env, U32 max)
1653 CODE:
1654 RETVAL = env->set_lk_max_objects (env, max);
1655 OUTPUT:
1656 RETVAL
1657
1658 int set_lg_bsize (DB_ENV *env, U32 max)
1659 CODE:
1660 RETVAL = env->set_lg_bsize (env, max);
1661 OUTPUT:
1662 RETVAL
1663
1664 int set_lg_max (DB_ENV *env, U32 max)
1665 CODE:
1666 RETVAL = env->set_lg_max (env, max);
1667 OUTPUT:
1668 RETVAL
1669
1670 DB_TXN *
1671 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1672 CODE:
1673 errno = env->txn_begin (env, parent, &RETVAL, flags);
1674 if (errno)
1675 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
1676 OUTPUT:
1677 RETVAL
1678
1679 MODULE = BDB PACKAGE = BDB::Db
1680
1681 void
1682 DESTROY (DB_ornull *db)
1683 CODE:
1684 if (db)
1685 {
1686 SV *env = (SV *)db->app_private;
1687 db->close (db, 0);
1688 SvREFCNT_dec (env);
1689 }
1690
1691 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1692 CODE:
1693 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1694 OUTPUT:
1695 RETVAL
1696
1697 int set_flags (DB *db, U32 flags);
1698 CODE:
1699 RETVAL = db->set_flags (db, flags);
1700 OUTPUT:
1701 RETVAL
1702
1703 int set_encrypt (DB *db, const char *password, U32 flags)
1704 CODE:
1705 RETVAL = db->set_encrypt (db, password, flags);
1706 OUTPUT:
1707 RETVAL
1708
1709 int set_lorder (DB *db, int lorder)
1710 CODE:
1711 RETVAL = db->set_lorder (db, lorder);
1712 OUTPUT:
1713 RETVAL
1714
1715 int set_bt_minkey (DB *db, U32 minkey)
1716 CODE:
1717 RETVAL = db->set_bt_minkey (db, minkey);
1718 OUTPUT:
1719 RETVAL
1720
1721 int set_re_delim(DB *db, int delim);
1722 CODE:
1723 RETVAL = db->set_re_delim (db, delim);
1724 OUTPUT:
1725 RETVAL
1726
1727 int set_re_pad (DB *db, int re_pad)
1728 CODE:
1729 RETVAL = db->set_re_pad (db, re_pad);
1730 OUTPUT:
1731 RETVAL
1732
1733 int set_re_source (DB *db, char *source)
1734 CODE:
1735 RETVAL = db->set_re_source (db, source);
1736 OUTPUT:
1737 RETVAL
1738
1739 int set_re_len (DB *db, U32 re_len)
1740 CODE:
1741 RETVAL = db->set_re_len (db, re_len);
1742 OUTPUT:
1743 RETVAL
1744
1745 int set_h_ffactor (DB *db, U32 h_ffactor)
1746 CODE:
1747 RETVAL = db->set_h_ffactor (db, h_ffactor);
1748 OUTPUT:
1749 RETVAL
1750
1751 int set_h_nelem (DB *db, U32 h_nelem)
1752 CODE:
1753 RETVAL = db->set_h_nelem (db, h_nelem);
1754 OUTPUT:
1755 RETVAL
1756
1757 int set_q_extentsize (DB *db, U32 extentsize)
1758 CODE:
1759 RETVAL = db->set_q_extentsize (db, extentsize);
1760 OUTPUT:
1761 RETVAL
1762
1763 DBC *
1764 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
1765 CODE:
1766 errno = db->cursor (db, txn, &RETVAL, flags);
1767 if (errno)
1768 croak ("DB->cursor: %s", db_strerror (errno));
1769 OUTPUT:
1770 RETVAL
1771
1772 DB_SEQUENCE *
1773 sequence (DB *db, U32 flags = 0)
1774 CODE:
1775 {
1776 errno = db_sequence_create (&RETVAL, db, flags);
1777 if (errno)
1778 croak ("db_sequence_create: %s", db_strerror (errno));
1779 }
1780 OUTPUT:
1781 RETVAL
1782
1783
1784 MODULE = BDB PACKAGE = BDB::Txn
1785
1786 void
1787 DESTROY (DB_TXN_ornull *txn)
1788 CODE:
1789 if (txn)
1790 txn->abort (txn);
1791
1792 int set_timeout (DB_TXN *txn, NV timeout, U32 flags)
1793 CODE:
1794 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1795 OUTPUT:
1796 RETVAL
1797
1798
1799 MODULE = BDB PACKAGE = BDB::Cursor
1800
1801 void
1802 DESTROY (DBC_ornull *dbc)
1803 CODE:
1804 if (dbc)
1805 dbc->c_close (dbc);
1806
1807 MODULE = BDB PACKAGE = BDB::Sequence
1808
1809 void
1810 DESTROY (DB_SEQUENCE_ornull *seq)
1811 CODE:
1812 if (seq)
1813 seq->close (seq, 0);
1814
1815 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
1816 CODE:
1817 RETVAL = seq->initial_value (seq, value);
1818 OUTPUT:
1819 RETVAL
1820
1821 int set_cachesize (DB_SEQUENCE *seq, U32 size)
1822 CODE:
1823 RETVAL = seq->set_cachesize (seq, size);
1824 OUTPUT:
1825 RETVAL
1826
1827 int set_flags (DB_SEQUENCE *seq, U32 flags)
1828 CODE:
1829 RETVAL = seq->set_flags (seq, flags);
1830 OUTPUT:
1831 RETVAL
1832
1833 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
1834 CODE:
1835 RETVAL = seq->set_range (seq, min, max);
1836 OUTPUT:
1837 RETVAL
1838