ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/BDB/BDB.xs
Revision: 1.14
Committed: Sun Jul 8 13:41:03 2007 UTC (16 years, 10 months ago) by root
Branch: MAIN
CVS Tags: rel-0_5
Changes since 1.13: +82 -1 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 void
51 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
52 {
53 printf ("err[%s]\n", msg);
54 }
55
56 static void
57 debug_msgcall (const DB_ENV *dbenv, const char *msg)
58 {
59 printf ("msg[%s]\n", msg);
60 }
61
62 static char *
63 strdup_ornull (const char *s)
64 {
65 return s ? strdup (s) : 0;
66 }
67
68 static void
69 sv_to_dbt (DBT *dbt, SV *sv)
70 {
71 STRLEN len;
72 char *data = SvPVbyte (sv, len);
73
74 dbt->data = malloc (len);
75 memcpy (dbt->data, data, len);
76 dbt->size = len;
77 dbt->flags = DB_DBT_REALLOC;
78 }
79
80 static void
81 dbt_to_sv (SV *sv, DBT *dbt)
82 {
83 if (sv)
84 {
85 SvREADONLY_off (sv);
86 sv_setpvn_mg (sv, dbt->data, dbt->size);
87 SvREFCNT_dec (sv);
88 }
89
90 free (dbt->data);
91 }
92
93 enum {
94 REQ_QUIT,
95 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
96 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
97 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
98 REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
99 REQ_TXN_COMMIT, REQ_TXN_ABORT,
100 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
101 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
102 };
103
104 typedef struct aio_cb
105 {
106 struct aio_cb *volatile next;
107 SV *callback;
108 int type, pri, result;
109
110 DB_ENV *env;
111 DB *db;
112 DB_TXN *txn;
113 DBC *dbc;
114
115 UV uv1;
116 int int1, int2;
117 U32 uint1, uint2;
118 char *buf1, *buf2;
119 SV *sv1, *sv2, *sv3;
120
121 DBT dbt1, dbt2, dbt3;
122 DB_KEY_RANGE key_range;
123 DB_SEQUENCE *seq;
124 db_seq_t seq_t;
125 } aio_cb;
126
127 typedef aio_cb *aio_req;
128
129 enum {
130 PRI_MIN = -4,
131 PRI_MAX = 4,
132
133 DEFAULT_PRI = 0,
134 PRI_BIAS = -PRI_MIN,
135 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
136 };
137
138 #define AIO_TICKS ((1000000 + 1023) >> 10)
139
140 static unsigned int max_poll_time = 0;
141 static unsigned int max_poll_reqs = 0;
142
143 /* calculcate time difference in ~1/AIO_TICKS of a second */
144 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
145 {
146 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
147 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
148 }
149
150 static int next_pri = DEFAULT_PRI + PRI_BIAS;
151
152 static unsigned int started, idle, wanted;
153
154 /* worker threads management */
155 static mutex_t wrklock = X_MUTEX_INIT;
156
157 typedef struct worker {
158 /* locked by wrklock */
159 struct worker *prev, *next;
160
161 thread_t tid;
162
163 /* locked by reslock, reqlock or wrklock */
164 aio_req req; /* currently processed request */
165 void *dbuf;
166 DIR *dirp;
167 } worker;
168
169 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
170
171 static void worker_clear (worker *wrk)
172 {
173 }
174
175 static void worker_free (worker *wrk)
176 {
177 wrk->next->prev = wrk->prev;
178 wrk->prev->next = wrk->next;
179
180 free (wrk);
181 }
182
183 static volatile unsigned int nreqs, nready, npending;
184 static volatile unsigned int max_idle = 4;
185 static volatile unsigned int max_outstanding = 0xffffffff;
186 static int respipe [2], respipe_osf [2];
187
188 static mutex_t reslock = X_MUTEX_INIT;
189 static mutex_t reqlock = X_MUTEX_INIT;
190 static cond_t reqwait = X_COND_INIT;
191
192 #if WORDACCESS_UNSAFE
193
194 static unsigned int get_nready ()
195 {
196 unsigned int retval;
197
198 X_LOCK (reqlock);
199 retval = nready;
200 X_UNLOCK (reqlock);
201
202 return retval;
203 }
204
205 static unsigned int get_npending ()
206 {
207 unsigned int retval;
208
209 X_LOCK (reslock);
210 retval = npending;
211 X_UNLOCK (reslock);
212
213 return retval;
214 }
215
216 static unsigned int get_nthreads ()
217 {
218 unsigned int retval;
219
220 X_LOCK (wrklock);
221 retval = started;
222 X_UNLOCK (wrklock);
223
224 return retval;
225 }
226
227 #else
228
229 # define get_nready() nready
230 # define get_npending() npending
231 # define get_nthreads() started
232
233 #endif
234
235 /*
236 * a somewhat faster data structure might be nice, but
237 * with 8 priorities this actually needs <20 insns
238 * per shift, the most expensive operation.
239 */
240 typedef struct {
241 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
242 int size;
243 } reqq;
244
245 static reqq req_queue;
246 static reqq res_queue;
247
248 int reqq_push (reqq *q, aio_req req)
249 {
250 int pri = req->pri;
251 req->next = 0;
252
253 if (q->qe[pri])
254 {
255 q->qe[pri]->next = req;
256 q->qe[pri] = req;
257 }
258 else
259 q->qe[pri] = q->qs[pri] = req;
260
261 return q->size++;
262 }
263
264 aio_req reqq_shift (reqq *q)
265 {
266 int pri;
267
268 if (!q->size)
269 return 0;
270
271 --q->size;
272
273 for (pri = NUM_PRI; pri--; )
274 {
275 aio_req req = q->qs[pri];
276
277 if (req)
278 {
279 if (!(q->qs[pri] = req->next))
280 q->qe[pri] = 0;
281
282 return req;
283 }
284 }
285
286 abort ();
287 }
288
289 static int poll_cb ();
290 static void req_free (aio_req req);
291 static void req_cancel (aio_req req);
292
293 static int req_invoke (aio_req req)
294 {
295 dSP;
296
297 if (SvOK (req->callback))
298 {
299 ENTER;
300 SAVETMPS;
301 PUSHMARK (SP);
302
303 switch (req->type)
304 {
305 case REQ_DB_CLOSE:
306 SvREFCNT_dec (req->sv1);
307 break;
308
309 case REQ_DB_GET:
310 case REQ_DB_PGET:
311 dbt_to_sv (req->sv3, &req->dbt3);
312 break;
313
314 case REQ_C_GET:
315 case REQ_C_PGET:
316 dbt_to_sv (req->sv1, &req->dbt1);
317 dbt_to_sv (req->sv2, &req->dbt2);
318 dbt_to_sv (req->sv3, &req->dbt3);
319 break;
320
321 case REQ_DB_KEY_RANGE:
322 {
323 AV *av = newAV ();
324
325 av_push (av, newSVnv (req->key_range.less));
326 av_push (av, newSVnv (req->key_range.equal));
327 av_push (av, newSVnv (req->key_range.greater));
328
329 SvREADONLY_off (req->sv1);
330 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
331 SvREFCNT_dec (req->sv1);
332 }
333 break;
334
335 case REQ_SEQ_GET:
336 SvREADONLY_off (req->sv1);
337
338 if (sizeof (IV) > 4)
339 sv_setiv_mg (req->sv1, req->seq_t);
340 else
341 sv_setnv_mg (req->sv1, req->seq_t);
342
343 SvREFCNT_dec (req->sv1);
344 break;
345 }
346
347 errno = req->result;
348
349 PUTBACK;
350 call_sv (req->callback, G_VOID | G_EVAL);
351 SPAGAIN;
352
353 FREETMPS;
354 LEAVE;
355 }
356
357 return !SvTRUE (ERRSV);
358 }
359
360 static void req_free (aio_req req)
361 {
362 free (req->buf1);
363 free (req->buf2);
364 Safefree (req);
365 }
366
367 #ifdef USE_SOCKETS_AS_HANDLES
368 # define TO_SOCKET(x) (win32_get_osfhandle (x))
369 #else
370 # define TO_SOCKET(x) (x)
371 #endif
372
373 static void
374 create_pipe (int fd[2])
375 {
376 #ifdef _WIN32
377 int arg = 1;
378 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
379 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
380 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
381 #else
382 if (pipe (fd)
383 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
384 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
385 #endif
386 croak ("unable to initialize result pipe");
387
388 respipe_osf [0] = TO_SOCKET (respipe [0]);
389 respipe_osf [1] = TO_SOCKET (respipe [1]);
390 }
391
392 X_THREAD_PROC (bdb_proc);
393
394 static void start_thread (void)
395 {
396 worker *wrk = calloc (1, sizeof (worker));
397
398 if (!wrk)
399 croak ("unable to allocate worker thread data");
400
401 X_LOCK (wrklock);
402 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
403 {
404 wrk->prev = &wrk_first;
405 wrk->next = wrk_first.next;
406 wrk_first.next->prev = wrk;
407 wrk_first.next = wrk;
408 ++started;
409 }
410 else
411 free (wrk);
412
413 X_UNLOCK (wrklock);
414 }
415
416 static void maybe_start_thread ()
417 {
418 if (get_nthreads () >= wanted)
419 return;
420
421 /* todo: maybe use idle here, but might be less exact */
422 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
423 return;
424
425 start_thread ();
426 }
427
428 static void req_send (aio_req req)
429 {
430 SV *wait_callback = 0;
431
432 // synthesize callback if none given
433 if (!SvOK (req->callback))
434 {
435 int count;
436
437 dSP;
438 PUSHMARK (SP);
439 PUTBACK;
440 count = call_sv (prepare_cb, G_ARRAY);
441 SPAGAIN;
442
443 if (count != 2)
444 croak ("prepare callback must return exactly two values\n");
445
446 wait_callback = SvREFCNT_inc (POPs);
447 SvREFCNT_dec (req->callback);
448 req->callback = SvREFCNT_inc (POPs);
449 }
450
451 ++nreqs;
452
453 X_LOCK (reqlock);
454 ++nready;
455 reqq_push (&req_queue, req);
456 X_COND_SIGNAL (reqwait);
457 X_UNLOCK (reqlock);
458
459 maybe_start_thread ();
460
461 if (wait_callback)
462 {
463 dSP;
464 PUSHMARK (SP);
465 PUTBACK;
466 call_sv (wait_callback, G_DISCARD);
467 SvREFCNT_dec (wait_callback);
468 }
469 }
470
471 static void end_thread (void)
472 {
473 aio_req req;
474
475 Newz (0, req, 1, aio_cb);
476
477 req->type = REQ_QUIT;
478 req->pri = PRI_MAX + PRI_BIAS;
479
480 X_LOCK (reqlock);
481 reqq_push (&req_queue, req);
482 X_COND_SIGNAL (reqwait);
483 X_UNLOCK (reqlock);
484
485 X_LOCK (wrklock);
486 --started;
487 X_UNLOCK (wrklock);
488 }
489
490 static void set_max_idle (int nthreads)
491 {
492 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
493 max_idle = nthreads <= 0 ? 1 : nthreads;
494 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
495 }
496
497 static void min_parallel (int nthreads)
498 {
499 if (wanted < nthreads)
500 wanted = nthreads;
501 }
502
503 static void max_parallel (int nthreads)
504 {
505 if (wanted > nthreads)
506 wanted = nthreads;
507
508 while (started > wanted)
509 end_thread ();
510 }
511
512 static void poll_wait ()
513 {
514 fd_set rfd;
515
516 while (nreqs)
517 {
518 int size;
519 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
520 size = res_queue.size;
521 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
522
523 if (size)
524 return;
525
526 maybe_start_thread ();
527
528 FD_ZERO (&rfd);
529 FD_SET (respipe [0], &rfd);
530
531 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
532 }
533 }
534
535 static int poll_cb ()
536 {
537 dSP;
538 int count = 0;
539 int maxreqs = max_poll_reqs;
540 int do_croak = 0;
541 struct timeval tv_start, tv_now;
542 aio_req req;
543
544 if (max_poll_time)
545 gettimeofday (&tv_start, 0);
546
547 for (;;)
548 {
549 for (;;)
550 {
551 maybe_start_thread ();
552
553 X_LOCK (reslock);
554 req = reqq_shift (&res_queue);
555
556 if (req)
557 {
558 --npending;
559
560 if (!res_queue.size)
561 {
562 /* read any signals sent by the worker threads */
563 char buf [4];
564 while (respipe_read (respipe [0], buf, 4) == 4)
565 ;
566 }
567 }
568
569 X_UNLOCK (reslock);
570
571 if (!req)
572 break;
573
574 --nreqs;
575
576 if (!req_invoke (req))
577 {
578 req_free (req);
579 croak (0);
580 }
581
582 count++;
583
584 req_free (req);
585
586 if (maxreqs && !--maxreqs)
587 break;
588
589 if (max_poll_time)
590 {
591 gettimeofday (&tv_now, 0);
592
593 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
594 break;
595 }
596 }
597
598 if (nreqs <= max_outstanding)
599 break;
600
601 poll_wait ();
602
603 ++maxreqs;
604 }
605
606 return count;
607 }
608
609 /*****************************************************************************/
610
611 X_THREAD_PROC (bdb_proc)
612 {
613 aio_req req;
614 struct timespec ts;
615 worker *self = (worker *)thr_arg;
616
617 /* try to distribute timeouts somewhat evenly */
618 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
619
620 for (;;)
621 {
622 ts.tv_sec = time (0) + IDLE_TIMEOUT;
623
624 X_LOCK (reqlock);
625
626 for (;;)
627 {
628 self->req = req = reqq_shift (&req_queue);
629
630 if (req)
631 break;
632
633 ++idle;
634
635 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
636 == ETIMEDOUT)
637 {
638 if (idle > max_idle)
639 {
640 --idle;
641 X_UNLOCK (reqlock);
642 X_LOCK (wrklock);
643 --started;
644 X_UNLOCK (wrklock);
645 goto quit;
646 }
647
648 /* we are allowed to idle, so do so without any timeout */
649 X_COND_WAIT (reqwait, reqlock);
650 ts.tv_sec = time (0) + IDLE_TIMEOUT;
651 }
652
653 --idle;
654 }
655
656 --nready;
657
658 X_UNLOCK (reqlock);
659
660 switch (req->type)
661 {
662 case REQ_QUIT:
663 goto quit;
664
665 case REQ_ENV_OPEN:
666 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
667 break;
668
669 case REQ_ENV_CLOSE:
670 req->result = req->env->close (req->env, req->uint1);
671 break;
672
673 case REQ_ENV_TXN_CHECKPOINT:
674 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
675 break;
676
677 case REQ_ENV_LOCK_DETECT:
678 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
679 break;
680
681 case REQ_ENV_MEMP_SYNC:
682 req->result = req->env->memp_sync (req->env, 0);
683 break;
684
685 case REQ_ENV_MEMP_TRICKLE:
686 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
687 break;
688
689 case REQ_DB_OPEN:
690 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
691 break;
692
693 case REQ_DB_CLOSE:
694 req->result = req->db->close (req->db, req->uint1);
695 break;
696
697 case REQ_DB_COMPACT:
698 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
699 break;
700
701 case REQ_DB_SYNC:
702 req->result = req->db->sync (req->db, req->uint1);
703 break;
704
705 case REQ_DB_PUT:
706 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
707 break;
708
709 case REQ_DB_GET:
710 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
711 break;
712
713 case REQ_DB_PGET:
714 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
715 break;
716
717 case REQ_DB_DEL:
718 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
719 break;
720
721 case REQ_DB_KEY_RANGE:
722 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
723 break;
724
725 case REQ_TXN_COMMIT:
726 req->result = req->txn->commit (req->txn, req->uint1);
727 break;
728
729 case REQ_TXN_ABORT:
730 req->result = req->txn->abort (req->txn);
731 break;
732
733 case REQ_C_CLOSE:
734 req->result = req->dbc->c_close (req->dbc);
735 break;
736
737 case REQ_C_COUNT:
738 {
739 db_recno_t recno;
740 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
741 req->uv1 = recno;
742 }
743 break;
744
745 case REQ_C_PUT:
746 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
747 break;
748
749 case REQ_C_GET:
750 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
751 break;
752
753 case REQ_C_PGET:
754 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
755 break;
756
757 case REQ_C_DEL:
758 req->result = req->dbc->c_del (req->dbc, req->uint1);
759 break;
760
761 case REQ_SEQ_OPEN:
762 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
763 break;
764
765 case REQ_SEQ_CLOSE:
766 req->result = req->seq->close (req->seq, req->uint1);
767 break;
768
769 case REQ_SEQ_GET:
770 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
771 break;
772
773 case REQ_SEQ_REMOVE:
774 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
775 break;
776
777 default:
778 req->result = ENOSYS;
779 break;
780 }
781
782 X_LOCK (reslock);
783
784 ++npending;
785
786 if (!reqq_push (&res_queue, req))
787 /* write a dummy byte to the pipe so fh becomes ready */
788 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
789
790 self->req = 0;
791 worker_clear (self);
792
793 X_UNLOCK (reslock);
794 }
795
796 quit:
797 X_LOCK (wrklock);
798 worker_free (self);
799 X_UNLOCK (wrklock);
800
801 return 0;
802 }
803
804 /*****************************************************************************/
805
806 static void atfork_prepare (void)
807 {
808 X_LOCK (wrklock);
809 X_LOCK (reqlock);
810 X_LOCK (reslock);
811 }
812
813 static void atfork_parent (void)
814 {
815 X_UNLOCK (reslock);
816 X_UNLOCK (reqlock);
817 X_UNLOCK (wrklock);
818 }
819
820 static void atfork_child (void)
821 {
822 aio_req prv;
823
824 while (prv = reqq_shift (&req_queue))
825 req_free (prv);
826
827 while (prv = reqq_shift (&res_queue))
828 req_free (prv);
829
830 while (wrk_first.next != &wrk_first)
831 {
832 worker *wrk = wrk_first.next;
833
834 if (wrk->req)
835 req_free (wrk->req);
836
837 worker_clear (wrk);
838 worker_free (wrk);
839 }
840
841 started = 0;
842 idle = 0;
843 nreqs = 0;
844 nready = 0;
845 npending = 0;
846
847 respipe_close (respipe [0]);
848 respipe_close (respipe [1]);
849
850 create_pipe (respipe);
851
852 atfork_parent ();
853 }
854
855 #define dREQ(reqtype) \
856 aio_req req; \
857 int req_pri = next_pri; \
858 next_pri = DEFAULT_PRI + PRI_BIAS; \
859 \
860 if (SvOK (callback) && !SvROK (callback)) \
861 croak ("callback must be undef or of reference type"); \
862 \
863 Newz (0, req, 1, aio_cb); \
864 if (!req) \
865 croak ("out of memory during aio_req allocation"); \
866 \
867 req->callback = newSVsv (callback); \
868 req->type = (reqtype); \
869 req->pri = req_pri
870
871 #define REQ_SEND \
872 req_send (req)
873
874 #define SvPTR(var, arg, type, class, nullok) \
875 if (!SvOK (arg)) \
876 { \
877 if (!nullok) \
878 croak (# var " must be a " # class " object, not undef"); \
879 \
880 (var) = 0; \
881 } \
882 else if (sv_derived_from ((arg), # class)) \
883 { \
884 IV tmp = SvIV ((SV*) SvRV (arg)); \
885 (var) = INT2PTR (type, tmp); \
886 if (!var) \
887 croak (# var " is not a valid " # class " object anymore"); \
888 } \
889 else \
890 croak (# var " is not of type " # class); \
891 \
892
893 static void
894 ptr_nuke (SV *sv)
895 {
896 assert (SvROK (sv));
897 sv_setiv (SvRV (sv), 0);
898 }
899
900 MODULE = BDB PACKAGE = BDB
901
902 PROTOTYPES: ENABLE
903
904 BOOT:
905 {
906 HV *stash = gv_stashpv ("BDB", 1);
907
908 static const struct {
909 const char *name;
910 IV iv;
911 } *civ, const_iv[] = {
912 #define const_iv(name) { # name, (IV)DB_ ## name },
913 const_iv (RPCCLIENT)
914 const_iv (INIT_CDB)
915 const_iv (INIT_LOCK)
916 const_iv (INIT_LOG)
917 const_iv (INIT_MPOOL)
918 const_iv (INIT_REP)
919 const_iv (INIT_TXN)
920 const_iv (RECOVER)
921 const_iv (INIT_TXN)
922 const_iv (RECOVER_FATAL)
923 const_iv (CREATE)
924 const_iv (USE_ENVIRON)
925 const_iv (USE_ENVIRON_ROOT)
926 const_iv (LOCKDOWN)
927 const_iv (PRIVATE)
928 const_iv (REGISTER)
929 const_iv (SYSTEM_MEM)
930 const_iv (AUTO_COMMIT)
931 const_iv (CDB_ALLDB)
932 const_iv (DIRECT_DB)
933 const_iv (DIRECT_LOG)
934 const_iv (DSYNC_DB)
935 const_iv (DSYNC_LOG)
936 const_iv (LOG_AUTOREMOVE)
937 const_iv (LOG_INMEMORY)
938 const_iv (NOLOCKING)
939 const_iv (NOMMAP)
940 const_iv (NOPANIC)
941 const_iv (OVERWRITE)
942 const_iv (PANIC_ENVIRONMENT)
943 const_iv (REGION_INIT)
944 const_iv (TIME_NOTGRANTED)
945 const_iv (TXN_NOSYNC)
946 const_iv (TXN_WRITE_NOSYNC)
947 const_iv (WRITECURSOR)
948 const_iv (YIELDCPU)
949 const_iv (ENCRYPT_AES)
950 const_iv (XA_CREATE)
951 const_iv (BTREE)
952 const_iv (HASH)
953 const_iv (QUEUE)
954 const_iv (RECNO)
955 const_iv (UNKNOWN)
956 const_iv (EXCL)
957 const_iv (READ_COMMITTED)
958 const_iv (READ_UNCOMMITTED)
959 const_iv (TRUNCATE)
960 const_iv (NOSYNC)
961 const_iv (CHKSUM)
962 const_iv (ENCRYPT)
963 const_iv (TXN_NOT_DURABLE)
964 const_iv (DUP)
965 const_iv (DUPSORT)
966 const_iv (RECNUM)
967 const_iv (RENUMBER)
968 const_iv (REVSPLITOFF)
969 const_iv (INORDER)
970 const_iv (CONSUME)
971 const_iv (CONSUME_WAIT)
972 const_iv (GET_BOTH)
973 const_iv (GET_BOTH_RANGE)
974 //const_iv (SET_RECNO)
975 //const_iv (MULTIPLE)
976 const_iv (SNAPSHOT)
977 const_iv (JOIN_ITEM)
978 const_iv (RMW)
979
980 const_iv (NOTFOUND)
981 const_iv (KEYEMPTY)
982 const_iv (LOCK_DEADLOCK)
983 const_iv (LOCK_NOTGRANTED)
984 const_iv (RUNRECOVERY)
985 const_iv (OLD_VERSION)
986 const_iv (REP_HANDLE_DEAD)
987 const_iv (REP_LOCKOUT)
988 const_iv (SECONDARY_BAD)
989
990 const_iv (FREE_SPACE)
991 const_iv (FREELIST_ONLY)
992
993 const_iv (APPEND)
994 const_iv (NODUPDATA)
995 const_iv (NOOVERWRITE)
996
997 const_iv (TXN_NOWAIT)
998 const_iv (TXN_SYNC)
999
1000 const_iv (SET_LOCK_TIMEOUT)
1001 const_iv (SET_TXN_TIMEOUT)
1002
1003 const_iv (JOIN_ITEM)
1004 const_iv (FIRST)
1005 const_iv (NEXT)
1006 const_iv (NEXT_DUP)
1007 const_iv (NEXT_NODUP)
1008 const_iv (PREV)
1009 const_iv (PREV_NODUP)
1010 const_iv (SET)
1011 const_iv (SET_RANGE)
1012 const_iv (LAST)
1013 const_iv (BEFORE)
1014 const_iv (AFTER)
1015 const_iv (CURRENT)
1016 const_iv (KEYFIRST)
1017 const_iv (KEYLAST)
1018 const_iv (NODUPDATA)
1019
1020 const_iv (FORCE)
1021
1022 const_iv (LOCK_DEFAULT)
1023 const_iv (LOCK_EXPIRE)
1024 const_iv (LOCK_MAXLOCKS)
1025 const_iv (LOCK_MAXWRITE)
1026 const_iv (LOCK_MINLOCKS)
1027 const_iv (LOCK_MINWRITE)
1028 const_iv (LOCK_OLDEST)
1029 const_iv (LOCK_RANDOM)
1030 const_iv (LOCK_YOUNGEST)
1031
1032 const_iv (SEQ_DEC)
1033 const_iv (SEQ_INC)
1034 const_iv (SEQ_WRAP)
1035
1036 const_iv (BUFFER_SMALL)
1037 const_iv (DONOTINDEX)
1038 const_iv (KEYEMPTY )
1039 const_iv (KEYEXIST )
1040 const_iv (LOCK_DEADLOCK)
1041 const_iv (LOCK_NOTGRANTED)
1042 const_iv (LOG_BUFFER_FULL)
1043 const_iv (NOSERVER)
1044 const_iv (NOSERVER_HOME)
1045 const_iv (NOSERVER_ID)
1046 const_iv (NOTFOUND)
1047 const_iv (OLD_VERSION)
1048 const_iv (PAGE_NOTFOUND)
1049 const_iv (REP_DUPMASTER)
1050 const_iv (REP_HANDLE_DEAD)
1051 const_iv (REP_HOLDELECTION)
1052 const_iv (REP_IGNORE)
1053 const_iv (REP_ISPERM)
1054 const_iv (REP_JOIN_FAILURE)
1055 const_iv (REP_LOCKOUT)
1056 const_iv (REP_NEWMASTER)
1057 const_iv (REP_NEWSITE)
1058 const_iv (REP_NOTPERM)
1059 const_iv (REP_UNAVAIL)
1060 const_iv (RUNRECOVERY)
1061 const_iv (SECONDARY_BAD)
1062 const_iv (VERIFY_BAD)
1063 const_iv (VERSION_MISMATCH)
1064
1065 const_iv (VERB_DEADLOCK)
1066 const_iv (VERB_RECOVERY)
1067 const_iv (VERB_REGISTER)
1068 const_iv (VERB_REPLICATION)
1069 const_iv (VERB_WAITSFOR)
1070
1071 const_iv (VERSION_MAJOR)
1072 const_iv (VERSION_MINOR)
1073 const_iv (VERSION_PATCH)
1074 #if DB_VERSION_MINOR >= 5
1075 const_iv (MULTIVERSION)
1076 const_iv (TXN_SNAPSHOT)
1077 #endif
1078 };
1079
1080 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1081 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1082
1083 newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
1084 newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1085
1086 create_pipe (respipe);
1087
1088 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1089 #ifdef _WIN32
1090 X_MUTEX_CHECK (wrklock);
1091 X_MUTEX_CHECK (reslock);
1092 X_MUTEX_CHECK (reqlock);
1093
1094 X_COND_CHECK (reqwait);
1095 #endif
1096 }
1097
1098 void
1099 max_poll_reqs (int nreqs)
1100 PROTOTYPE: $
1101 CODE:
1102 max_poll_reqs = nreqs;
1103
1104 void
1105 max_poll_time (double nseconds)
1106 PROTOTYPE: $
1107 CODE:
1108 max_poll_time = nseconds * AIO_TICKS;
1109
1110 void
1111 min_parallel (int nthreads)
1112 PROTOTYPE: $
1113
1114 void
1115 max_parallel (int nthreads)
1116 PROTOTYPE: $
1117
1118 void
1119 max_idle (int nthreads)
1120 PROTOTYPE: $
1121 CODE:
1122 set_max_idle (nthreads);
1123
1124 int
1125 max_outstanding (int maxreqs)
1126 PROTOTYPE: $
1127 CODE:
1128 RETVAL = max_outstanding;
1129 max_outstanding = maxreqs;
1130 OUTPUT:
1131 RETVAL
1132
1133 int
1134 dbreq_pri (int pri = 0)
1135 PROTOTYPE: ;$
1136 CODE:
1137 RETVAL = next_pri - PRI_BIAS;
1138 if (items > 0)
1139 {
1140 if (pri < PRI_MIN) pri = PRI_MIN;
1141 if (pri > PRI_MAX) pri = PRI_MAX;
1142 next_pri = pri + PRI_BIAS;
1143 }
1144 OUTPUT:
1145 RETVAL
1146
1147 void
1148 dbreq_nice (int nice = 0)
1149 CODE:
1150 nice = next_pri - nice;
1151 if (nice < PRI_MIN) nice = PRI_MIN;
1152 if (nice > PRI_MAX) nice = PRI_MAX;
1153 next_pri = nice + PRI_BIAS;
1154
1155 void
1156 flush ()
1157 PROTOTYPE:
1158 CODE:
1159 while (nreqs)
1160 {
1161 poll_wait ();
1162 poll_cb ();
1163 }
1164
1165 int
1166 poll ()
1167 PROTOTYPE:
1168 CODE:
1169 poll_wait ();
1170 RETVAL = poll_cb ();
1171 OUTPUT:
1172 RETVAL
1173
1174 int
1175 poll_fileno ()
1176 PROTOTYPE:
1177 CODE:
1178 RETVAL = respipe [0];
1179 OUTPUT:
1180 RETVAL
1181
1182 int
1183 poll_cb (...)
1184 PROTOTYPE:
1185 CODE:
1186 RETVAL = poll_cb ();
1187 OUTPUT:
1188 RETVAL
1189
1190 void
1191 poll_wait ()
1192 PROTOTYPE:
1193 CODE:
1194 poll_wait ();
1195
1196 int
1197 nreqs ()
1198 PROTOTYPE:
1199 CODE:
1200 RETVAL = nreqs;
1201 OUTPUT:
1202 RETVAL
1203
1204 int
1205 nready ()
1206 PROTOTYPE:
1207 CODE:
1208 RETVAL = get_nready ();
1209 OUTPUT:
1210 RETVAL
1211
1212 int
1213 npending ()
1214 PROTOTYPE:
1215 CODE:
1216 RETVAL = get_npending ();
1217 OUTPUT:
1218 RETVAL
1219
1220 int
1221 nthreads ()
1222 PROTOTYPE:
1223 CODE:
1224 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1225 RETVAL = started;
1226 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1227 OUTPUT:
1228 RETVAL
1229
1230 void
1231 set_sync_prepare (SV *cb)
1232 PROTOTYPE: &
1233 CODE:
1234 SvREFCNT_dec (prepare_cb);
1235 prepare_cb = newSVsv (cb);
1236
1237 char *
1238 strerror (int errorno = errno)
1239 PROTOTYPE: ;$
1240 CODE:
1241 RETVAL = db_strerror (errorno);
1242 OUTPUT:
1243 RETVAL
1244
1245 DB_ENV *
1246 db_env_create (U32 env_flags = 0)
1247 CODE:
1248 {
1249 errno = db_env_create (&RETVAL, env_flags);
1250 if (errno)
1251 croak ("db_env_create: %s", db_strerror (errno));
1252
1253 if (0)
1254 {
1255 RETVAL->set_errcall (RETVAL, debug_errcall);
1256 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1257 }
1258 }
1259 OUTPUT:
1260 RETVAL
1261
1262 void
1263 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1264 CODE:
1265 {
1266 dREQ (REQ_ENV_OPEN);
1267
1268 env->set_thread_count (env, wanted + 2);
1269
1270 req->env = env;
1271 req->uint1 = open_flags | DB_THREAD;
1272 req->int1 = mode;
1273 req->buf1 = strdup_ornull (db_home);
1274 REQ_SEND;
1275 }
1276
1277 void
1278 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
1279 CODE:
1280 {
1281 dREQ (REQ_ENV_CLOSE);
1282 req->env = env;
1283 req->uint1 = flags;
1284 REQ_SEND;
1285 ptr_nuke (ST (0));
1286 }
1287
1288 void
1289 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1290 CODE:
1291 {
1292 dREQ (REQ_ENV_TXN_CHECKPOINT);
1293 req->env = env;
1294 req->uint1 = kbyte;
1295 req->int1 = min;
1296 req->uint2 = flags;
1297 REQ_SEND;
1298 }
1299
1300 void
1301 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
1302 CODE:
1303 {
1304 dREQ (REQ_ENV_LOCK_DETECT);
1305 req->env = env;
1306 req->uint1 = flags;
1307 req->uint2 = atype;
1308 REQ_SEND;
1309 }
1310
1311 void
1312 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
1313 CODE:
1314 {
1315 dREQ (REQ_ENV_MEMP_SYNC);
1316 req->env = env;
1317 REQ_SEND;
1318 }
1319
1320 void
1321 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
1322 CODE:
1323 {
1324 dREQ (REQ_ENV_MEMP_TRICKLE);
1325 req->env = env;
1326 req->int1 = percent;
1327 REQ_SEND;
1328 }
1329
1330
1331 DB *
1332 db_create (DB_ENV *env = 0, U32 flags = 0)
1333 CODE:
1334 {
1335 errno = db_create (&RETVAL, env, flags);
1336 if (errno)
1337 croak ("db_create: %s", db_strerror (errno));
1338
1339 if (RETVAL)
1340 RETVAL->app_private = (void *)newSVsv (ST (0));
1341 }
1342 OUTPUT:
1343 RETVAL
1344
1345 void
1346 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
1347 CODE:
1348 {
1349 dREQ (REQ_DB_OPEN);
1350 req->db = db;
1351 req->txn = txnid;
1352 req->buf1 = strdup_ornull (file);
1353 req->buf2 = strdup_ornull (database);
1354 req->int1 = type;
1355 req->uint1 = flags | DB_THREAD;
1356 req->int2 = mode;
1357 REQ_SEND;
1358 }
1359
1360 void
1361 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1362 CODE:
1363 {
1364 dREQ (REQ_DB_CLOSE);
1365 req->db = db;
1366 req->uint1 = flags;
1367 req->sv1 = (SV *)db->app_private;
1368 REQ_SEND;
1369 ptr_nuke (ST (0));
1370 }
1371
1372 void
1373 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)
1374 CODE:
1375 {
1376 dREQ (REQ_DB_COMPACT);
1377 req->db = db;
1378 req->txn = txn;
1379 sv_to_dbt (&req->dbt1, start);
1380 sv_to_dbt (&req->dbt2, stop);
1381 req->uint1 = flags;
1382 REQ_SEND;
1383 }
1384
1385 void
1386 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1387 CODE:
1388 {
1389 dREQ (REQ_DB_SYNC);
1390 req->db = db;
1391 req->uint1 = flags;
1392 REQ_SEND;
1393 }
1394
1395 void
1396 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
1397 CODE:
1398 {
1399 dREQ (REQ_DB_KEY_RANGE);
1400 req->db = db;
1401 req->txn = txn;
1402 sv_to_dbt (&req->dbt1, key);
1403 req->uint1 = flags;
1404 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1405 REQ_SEND;
1406 }
1407
1408 void
1409 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1410 CODE:
1411 {
1412 dREQ (REQ_DB_PUT);
1413 req->db = db;
1414 req->txn = txn;
1415 sv_to_dbt (&req->dbt1, key);
1416 sv_to_dbt (&req->dbt2, data);
1417 req->uint1 = flags;
1418 REQ_SEND;
1419 }
1420
1421 void
1422 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1423 CODE:
1424 {
1425 dREQ (REQ_DB_GET);
1426 req->db = db;
1427 req->txn = txn;
1428 req->uint1 = flags;
1429 sv_to_dbt (&req->dbt1, key);
1430 req->dbt3.flags = DB_DBT_MALLOC;
1431 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1432 REQ_SEND;
1433 }
1434
1435 void
1436 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1437 CODE:
1438 {
1439 dREQ (REQ_DB_PGET);
1440 req->db = db;
1441 req->txn = txn;
1442 req->uint1 = flags;
1443 sv_to_dbt (&req->dbt1, key);
1444 sv_to_dbt (&req->dbt2, pkey);
1445 req->dbt3.flags = DB_DBT_MALLOC;
1446 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1447 REQ_SEND;
1448 }
1449
1450 void
1451 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1452 CODE:
1453 {
1454 dREQ (REQ_DB_DEL);
1455 req->db = db;
1456 req->txn = txn;
1457 req->uint1 = flags;
1458 sv_to_dbt (&req->dbt1, key);
1459 REQ_SEND;
1460 }
1461
1462 void
1463 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1464 CODE:
1465 {
1466 dREQ (REQ_TXN_COMMIT);
1467 req->txn = txn;
1468 req->uint1 = flags;
1469 REQ_SEND;
1470 ptr_nuke (ST (0));
1471 }
1472
1473 void
1474 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
1475 CODE:
1476 {
1477 dREQ (REQ_TXN_ABORT);
1478 req->txn = txn;
1479 REQ_SEND;
1480 ptr_nuke (ST (0));
1481 }
1482
1483 void
1484 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1485 CODE:
1486 {
1487 dREQ (REQ_C_CLOSE);
1488 req->dbc = dbc;
1489 REQ_SEND;
1490 ptr_nuke (ST (0));
1491 }
1492
1493 void
1494 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
1495 CODE:
1496 {
1497 dREQ (REQ_C_COUNT);
1498 req->dbc = dbc;
1499 req->sv1 = SvREFCNT_inc (count);
1500 REQ_SEND;
1501 }
1502
1503 void
1504 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1505 CODE:
1506 {
1507 dREQ (REQ_C_PUT);
1508 req->dbc = dbc;
1509 sv_to_dbt (&req->dbt1, key);
1510 sv_to_dbt (&req->dbt2, data);
1511 req->uint1 = flags;
1512 REQ_SEND;
1513 }
1514
1515 void
1516 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1517 CODE:
1518 {
1519 dREQ (REQ_C_GET);
1520 req->dbc = dbc;
1521 req->uint1 = flags;
1522 if ((flags & DB_SET) == DB_SET
1523 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1524 sv_to_dbt (&req->dbt1, key);
1525 else
1526 req->dbt1.flags = DB_DBT_MALLOC;
1527
1528 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1529
1530 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1531 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1532 sv_to_dbt (&req->dbt3, data);
1533 else
1534 req->dbt3.flags = DB_DBT_MALLOC;
1535
1536 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1537 REQ_SEND;
1538 }
1539
1540 void
1541 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1542 CODE:
1543 {
1544 dREQ (REQ_C_PGET);
1545 req->dbc = dbc;
1546 req->uint1 = flags;
1547 if ((flags & DB_SET) == DB_SET
1548 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1549 sv_to_dbt (&req->dbt1, key);
1550 else
1551 req->dbt1.flags = DB_DBT_MALLOC;
1552
1553 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1554
1555 req->dbt2.flags = DB_DBT_MALLOC;
1556 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1557
1558 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1559 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1560 sv_to_dbt (&req->dbt3, data);
1561 else
1562 req->dbt3.flags = DB_DBT_MALLOC;
1563
1564 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1565 REQ_SEND;
1566 }
1567
1568 void
1569 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
1570 CODE:
1571 {
1572 dREQ (REQ_C_DEL);
1573 req->dbc = dbc;
1574 req->uint1 = flags;
1575 REQ_SEND;
1576 }
1577
1578
1579 void
1580 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1581 CODE:
1582 {
1583 dREQ (REQ_SEQ_OPEN);
1584 req->seq = seq;
1585 req->txn = txnid;
1586 req->uint1 = flags | DB_THREAD;
1587 sv_to_dbt (&req->dbt1, key);
1588 REQ_SEND;
1589 }
1590
1591 void
1592 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
1593 CODE:
1594 {
1595 dREQ (REQ_SEQ_CLOSE);
1596 req->seq = seq;
1597 req->uint1 = flags;
1598 REQ_SEND;
1599 ptr_nuke (ST (0));
1600 }
1601
1602 void
1603 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)
1604 CODE:
1605 {
1606 dREQ (REQ_SEQ_GET);
1607 req->seq = seq;
1608 req->txn = txnid;
1609 req->int1 = delta;
1610 req->uint1 = flags;
1611 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1612 REQ_SEND;
1613 }
1614
1615 void
1616 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1617 CODE:
1618 {
1619 dREQ (REQ_SEQ_REMOVE);
1620 req->seq = seq;
1621 req->txn = txnid;
1622 req->uint1 = flags;
1623 REQ_SEND;
1624 }
1625
1626
1627 MODULE = BDB PACKAGE = BDB::Env
1628
1629 void
1630 DESTROY (DB_ENV_ornull *env)
1631 CODE:
1632 if (env)
1633 env->close (env, 0);
1634
1635 int set_data_dir (DB_ENV *env, const char *dir)
1636 CODE:
1637 RETVAL = env->set_data_dir (env, dir);
1638 OUTPUT:
1639 RETVAL
1640
1641 int set_tmp_dir (DB_ENV *env, const char *dir)
1642 CODE:
1643 RETVAL = env->set_tmp_dir (env, dir);
1644 OUTPUT:
1645 RETVAL
1646
1647 int set_lg_dir (DB_ENV *env, const char *dir)
1648 CODE:
1649 RETVAL = env->set_lg_dir (env, dir);
1650 OUTPUT:
1651 RETVAL
1652
1653 int set_shm_key (DB_ENV *env, long shm_key)
1654 CODE:
1655 RETVAL = env->set_shm_key (env, shm_key);
1656 OUTPUT:
1657 RETVAL
1658
1659 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1660 CODE:
1661 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1662 OUTPUT:
1663 RETVAL
1664
1665 int set_flags (DB_ENV *env, U32 flags, int onoff)
1666 CODE:
1667 RETVAL = env->set_flags (env, flags, onoff);
1668 OUTPUT:
1669 RETVAL
1670
1671 void set_errfile (DB_ENV *env, FILE *errfile)
1672 CODE:
1673 env->set_errfile (env, errfile);
1674
1675 void set_msgfile (DB_ENV *env, FILE *msgfile)
1676 CODE:
1677 env->set_msgfile (env, msgfile);
1678
1679 int set_verbose (DB_ENV *env, U32 which, int onoff = 1)
1680 CODE:
1681 RETVAL = env->set_verbose (env, which, onoff);
1682 OUTPUT:
1683 RETVAL
1684
1685 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1686 CODE:
1687 RETVAL = env->set_encrypt (env, password, flags);
1688 OUTPUT:
1689 RETVAL
1690
1691 int set_timeout (DB_ENV *env, NV timeout, U32 flags)
1692 CODE:
1693 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1694 OUTPUT:
1695 RETVAL
1696
1697 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
1698 CODE:
1699 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
1700 OUTPUT:
1701 RETVAL
1702
1703 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
1704 CODE:
1705 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
1706 OUTPUT:
1707 RETVAL
1708
1709 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
1710 CODE:
1711 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
1712 OUTPUT:
1713 RETVAL
1714
1715 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
1716 CODE:
1717 RETVAL = env->set_lk_detect (env, detect);
1718 OUTPUT:
1719 RETVAL
1720
1721 int set_lk_max_lockers (DB_ENV *env, U32 max)
1722 CODE:
1723 RETVAL = env->set_lk_max_lockers (env, max);
1724 OUTPUT:
1725 RETVAL
1726
1727 int set_lk_max_locks (DB_ENV *env, U32 max)
1728 CODE:
1729 RETVAL = env->set_lk_max_locks (env, max);
1730 OUTPUT:
1731 RETVAL
1732
1733 int set_lk_max_objects (DB_ENV *env, U32 max)
1734 CODE:
1735 RETVAL = env->set_lk_max_objects (env, max);
1736 OUTPUT:
1737 RETVAL
1738
1739 int set_lg_bsize (DB_ENV *env, U32 max)
1740 CODE:
1741 RETVAL = env->set_lg_bsize (env, max);
1742 OUTPUT:
1743 RETVAL
1744
1745 int set_lg_max (DB_ENV *env, U32 max)
1746 CODE:
1747 RETVAL = env->set_lg_max (env, max);
1748 OUTPUT:
1749 RETVAL
1750
1751 DB_TXN *
1752 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1753 CODE:
1754 errno = env->txn_begin (env, parent, &RETVAL, flags);
1755 if (errno)
1756 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
1757 OUTPUT:
1758 RETVAL
1759
1760 MODULE = BDB PACKAGE = BDB::Db
1761
1762 void
1763 DESTROY (DB_ornull *db)
1764 CODE:
1765 if (db)
1766 {
1767 SV *env = (SV *)db->app_private;
1768 db->close (db, 0);
1769 SvREFCNT_dec (env);
1770 }
1771
1772 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1773 CODE:
1774 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1775 OUTPUT:
1776 RETVAL
1777
1778 int set_flags (DB *db, U32 flags);
1779 CODE:
1780 RETVAL = db->set_flags (db, flags);
1781 OUTPUT:
1782 RETVAL
1783
1784 int set_encrypt (DB *db, const char *password, U32 flags)
1785 CODE:
1786 RETVAL = db->set_encrypt (db, password, flags);
1787 OUTPUT:
1788 RETVAL
1789
1790 int set_lorder (DB *db, int lorder)
1791 CODE:
1792 RETVAL = db->set_lorder (db, lorder);
1793 OUTPUT:
1794 RETVAL
1795
1796 int set_bt_minkey (DB *db, U32 minkey)
1797 CODE:
1798 RETVAL = db->set_bt_minkey (db, minkey);
1799 OUTPUT:
1800 RETVAL
1801
1802 int set_re_delim(DB *db, int delim);
1803 CODE:
1804 RETVAL = db->set_re_delim (db, delim);
1805 OUTPUT:
1806 RETVAL
1807
1808 int set_re_pad (DB *db, int re_pad)
1809 CODE:
1810 RETVAL = db->set_re_pad (db, re_pad);
1811 OUTPUT:
1812 RETVAL
1813
1814 int set_re_source (DB *db, char *source)
1815 CODE:
1816 RETVAL = db->set_re_source (db, source);
1817 OUTPUT:
1818 RETVAL
1819
1820 int set_re_len (DB *db, U32 re_len)
1821 CODE:
1822 RETVAL = db->set_re_len (db, re_len);
1823 OUTPUT:
1824 RETVAL
1825
1826 int set_h_ffactor (DB *db, U32 h_ffactor)
1827 CODE:
1828 RETVAL = db->set_h_ffactor (db, h_ffactor);
1829 OUTPUT:
1830 RETVAL
1831
1832 int set_h_nelem (DB *db, U32 h_nelem)
1833 CODE:
1834 RETVAL = db->set_h_nelem (db, h_nelem);
1835 OUTPUT:
1836 RETVAL
1837
1838 int set_q_extentsize (DB *db, U32 extentsize)
1839 CODE:
1840 RETVAL = db->set_q_extentsize (db, extentsize);
1841 OUTPUT:
1842 RETVAL
1843
1844 DBC *
1845 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
1846 CODE:
1847 errno = db->cursor (db, txn, &RETVAL, flags);
1848 if (errno)
1849 croak ("DB->cursor: %s", db_strerror (errno));
1850 OUTPUT:
1851 RETVAL
1852
1853 DB_SEQUENCE *
1854 sequence (DB *db, U32 flags = 0)
1855 CODE:
1856 {
1857 errno = db_sequence_create (&RETVAL, db, flags);
1858 if (errno)
1859 croak ("db_sequence_create: %s", db_strerror (errno));
1860 }
1861 OUTPUT:
1862 RETVAL
1863
1864
1865 MODULE = BDB PACKAGE = BDB::Txn
1866
1867 void
1868 DESTROY (DB_TXN_ornull *txn)
1869 CODE:
1870 if (txn)
1871 txn->abort (txn);
1872
1873 int set_timeout (DB_TXN *txn, NV timeout, U32 flags)
1874 CODE:
1875 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1876 OUTPUT:
1877 RETVAL
1878
1879
1880 MODULE = BDB PACKAGE = BDB::Cursor
1881
1882 void
1883 DESTROY (DBC_ornull *dbc)
1884 CODE:
1885 if (dbc)
1886 dbc->c_close (dbc);
1887
1888 MODULE = BDB PACKAGE = BDB::Sequence
1889
1890 void
1891 DESTROY (DB_SEQUENCE_ornull *seq)
1892 CODE:
1893 if (seq)
1894 seq->close (seq, 0);
1895
1896 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
1897 CODE:
1898 RETVAL = seq->initial_value (seq, value);
1899 OUTPUT:
1900 RETVAL
1901
1902 int set_cachesize (DB_SEQUENCE *seq, U32 size)
1903 CODE:
1904 RETVAL = seq->set_cachesize (seq, size);
1905 OUTPUT:
1906 RETVAL
1907
1908 int set_flags (DB_SEQUENCE *seq, U32 flags)
1909 CODE:
1910 RETVAL = seq->set_flags (seq, flags);
1911 OUTPUT:
1912 RETVAL
1913
1914 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
1915 CODE:
1916 RETVAL = seq->set_range (seq, min, max);
1917 OUTPUT:
1918 RETVAL
1919