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/cvs/BDB/BDB.xs
Revision: 1.17
Committed: Thu Sep 13 21:34:00 2007 UTC (16 years, 8 months ago) by root
Branch: MAIN
Changes since 1.16: +35 -3 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 #if DB_VERSION_MINOR >= 6
51 # define c_close close
52 # define c_count count
53 # define c_del del
54 # define c_dup dup
55 # define c_get get
56 # define c_pget pget
57 # define c_put put
58 #endif
59
60 static void
61 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
62 {
63 printf ("err[%s]\n", msg);
64 }
65
66 static void
67 debug_msgcall (const DB_ENV *dbenv, const char *msg)
68 {
69 printf ("msg[%s]\n", msg);
70 }
71
72 static char *
73 strdup_ornull (const char *s)
74 {
75 return s ? strdup (s) : 0;
76 }
77
78 static void
79 sv_to_dbt (DBT *dbt, SV *sv)
80 {
81 STRLEN len;
82 char *data = SvPVbyte (sv, len);
83
84 dbt->data = malloc (len);
85 memcpy (dbt->data, data, len);
86 dbt->size = len;
87 dbt->flags = DB_DBT_REALLOC;
88 }
89
90 static void
91 dbt_to_sv (SV *sv, DBT *dbt)
92 {
93 if (sv)
94 {
95 SvREADONLY_off (sv);
96 sv_setpvn_mg (sv, dbt->data, dbt->size);
97 SvREFCNT_dec (sv);
98 }
99
100 free (dbt->data);
101 }
102
103 enum {
104 REQ_QUIT,
105 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
106 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
107 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
108 REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
109 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
110 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
111 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
112 };
113
114 typedef struct aio_cb
115 {
116 struct aio_cb *volatile next;
117 SV *callback;
118 int type, pri, result;
119
120 DB_ENV *env;
121 DB *db;
122 DB_TXN *txn;
123 DBC *dbc;
124
125 UV uv1;
126 int int1, int2;
127 U32 uint1, uint2;
128 char *buf1, *buf2;
129 SV *sv1, *sv2, *sv3;
130
131 DBT dbt1, dbt2, dbt3;
132 DB_KEY_RANGE key_range;
133 DB_SEQUENCE *seq;
134 db_seq_t seq_t;
135 } aio_cb;
136
137 typedef aio_cb *aio_req;
138
139 enum {
140 PRI_MIN = -4,
141 PRI_MAX = 4,
142
143 DEFAULT_PRI = 0,
144 PRI_BIAS = -PRI_MIN,
145 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
146 };
147
148 #define AIO_TICKS ((1000000 + 1023) >> 10)
149
150 static unsigned int max_poll_time = 0;
151 static unsigned int max_poll_reqs = 0;
152
153 /* calculcate time difference in ~1/AIO_TICKS of a second */
154 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
155 {
156 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
157 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
158 }
159
160 static int next_pri = DEFAULT_PRI + PRI_BIAS;
161
162 static unsigned int started, idle, wanted;
163
164 /* worker threads management */
165 static mutex_t wrklock = X_MUTEX_INIT;
166
167 typedef struct worker {
168 /* locked by wrklock */
169 struct worker *prev, *next;
170
171 thread_t tid;
172
173 /* locked by reslock, reqlock or wrklock */
174 aio_req req; /* currently processed request */
175 void *dbuf;
176 DIR *dirp;
177 } worker;
178
179 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
180
181 static void worker_clear (worker *wrk)
182 {
183 }
184
185 static void worker_free (worker *wrk)
186 {
187 wrk->next->prev = wrk->prev;
188 wrk->prev->next = wrk->next;
189
190 free (wrk);
191 }
192
193 static volatile unsigned int nreqs, nready, npending;
194 static volatile unsigned int max_idle = 4;
195 static volatile unsigned int max_outstanding = 0xffffffff;
196 static int respipe [2], respipe_osf [2];
197
198 static mutex_t reslock = X_MUTEX_INIT;
199 static mutex_t reqlock = X_MUTEX_INIT;
200 static cond_t reqwait = X_COND_INIT;
201
202 #if WORDACCESS_UNSAFE
203
204 static unsigned int get_nready ()
205 {
206 unsigned int retval;
207
208 X_LOCK (reqlock);
209 retval = nready;
210 X_UNLOCK (reqlock);
211
212 return retval;
213 }
214
215 static unsigned int get_npending ()
216 {
217 unsigned int retval;
218
219 X_LOCK (reslock);
220 retval = npending;
221 X_UNLOCK (reslock);
222
223 return retval;
224 }
225
226 static unsigned int get_nthreads ()
227 {
228 unsigned int retval;
229
230 X_LOCK (wrklock);
231 retval = started;
232 X_UNLOCK (wrklock);
233
234 return retval;
235 }
236
237 #else
238
239 # define get_nready() nready
240 # define get_npending() npending
241 # define get_nthreads() started
242
243 #endif
244
245 /*
246 * a somewhat faster data structure might be nice, but
247 * with 8 priorities this actually needs <20 insns
248 * per shift, the most expensive operation.
249 */
250 typedef struct {
251 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
252 int size;
253 } reqq;
254
255 static reqq req_queue;
256 static reqq res_queue;
257
258 int reqq_push (reqq *q, aio_req req)
259 {
260 int pri = req->pri;
261 req->next = 0;
262
263 if (q->qe[pri])
264 {
265 q->qe[pri]->next = req;
266 q->qe[pri] = req;
267 }
268 else
269 q->qe[pri] = q->qs[pri] = req;
270
271 return q->size++;
272 }
273
274 aio_req reqq_shift (reqq *q)
275 {
276 int pri;
277
278 if (!q->size)
279 return 0;
280
281 --q->size;
282
283 for (pri = NUM_PRI; pri--; )
284 {
285 aio_req req = q->qs[pri];
286
287 if (req)
288 {
289 if (!(q->qs[pri] = req->next))
290 q->qe[pri] = 0;
291
292 return req;
293 }
294 }
295
296 abort ();
297 }
298
299 static int poll_cb ();
300 static void req_free (aio_req req);
301 static void req_cancel (aio_req req);
302
303 static int req_invoke (aio_req req)
304 {
305 dSP;
306
307 if (SvOK (req->callback))
308 {
309 ENTER;
310 SAVETMPS;
311 PUSHMARK (SP);
312
313 switch (req->type)
314 {
315 case REQ_DB_CLOSE:
316 SvREFCNT_dec (req->sv1);
317 break;
318
319 case REQ_DB_GET:
320 case REQ_DB_PGET:
321 dbt_to_sv (req->sv3, &req->dbt3);
322 break;
323
324 case REQ_C_GET:
325 case REQ_C_PGET:
326 dbt_to_sv (req->sv1, &req->dbt1);
327 dbt_to_sv (req->sv2, &req->dbt2);
328 dbt_to_sv (req->sv3, &req->dbt3);
329 break;
330
331 case REQ_DB_KEY_RANGE:
332 {
333 AV *av = newAV ();
334
335 av_push (av, newSVnv (req->key_range.less));
336 av_push (av, newSVnv (req->key_range.equal));
337 av_push (av, newSVnv (req->key_range.greater));
338
339 SvREADONLY_off (req->sv1);
340 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
341 SvREFCNT_dec (req->sv1);
342 }
343 break;
344
345 case REQ_SEQ_GET:
346 SvREADONLY_off (req->sv1);
347
348 if (sizeof (IV) > 4)
349 sv_setiv_mg (req->sv1, req->seq_t);
350 else
351 sv_setnv_mg (req->sv1, req->seq_t);
352
353 SvREFCNT_dec (req->sv1);
354 break;
355 }
356
357 errno = req->result;
358
359 PUTBACK;
360 call_sv (req->callback, G_VOID | G_EVAL);
361 SPAGAIN;
362
363 FREETMPS;
364 LEAVE;
365 }
366
367 return !SvTRUE (ERRSV);
368 }
369
370 static void req_free (aio_req req)
371 {
372 free (req->buf1);
373 free (req->buf2);
374 Safefree (req);
375 }
376
377 #ifdef USE_SOCKETS_AS_HANDLES
378 # define TO_SOCKET(x) (win32_get_osfhandle (x))
379 #else
380 # define TO_SOCKET(x) (x)
381 #endif
382
383 static void
384 create_pipe (int fd[2])
385 {
386 #ifdef _WIN32
387 int arg = 1;
388 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
389 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
390 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
391 #else
392 if (pipe (fd)
393 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
394 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
395 #endif
396 croak ("unable to initialize result pipe");
397
398 respipe_osf [0] = TO_SOCKET (respipe [0]);
399 respipe_osf [1] = TO_SOCKET (respipe [1]);
400 }
401
402 X_THREAD_PROC (bdb_proc);
403
404 static void start_thread (void)
405 {
406 worker *wrk = calloc (1, sizeof (worker));
407
408 if (!wrk)
409 croak ("unable to allocate worker thread data");
410
411 X_LOCK (wrklock);
412 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
413 {
414 wrk->prev = &wrk_first;
415 wrk->next = wrk_first.next;
416 wrk_first.next->prev = wrk;
417 wrk_first.next = wrk;
418 ++started;
419 }
420 else
421 free (wrk);
422
423 X_UNLOCK (wrklock);
424 }
425
426 static void maybe_start_thread ()
427 {
428 if (get_nthreads () >= wanted)
429 return;
430
431 /* todo: maybe use idle here, but might be less exact */
432 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
433 return;
434
435 start_thread ();
436 }
437
438 static void req_send (aio_req req)
439 {
440 SV *wait_callback = 0;
441
442 // synthesize callback if none given
443 if (!SvOK (req->callback))
444 {
445 int count;
446
447 dSP;
448 PUSHMARK (SP);
449 PUTBACK;
450 count = call_sv (prepare_cb, G_ARRAY);
451 SPAGAIN;
452
453 if (count != 2)
454 croak ("prepare callback must return exactly two values\n");
455
456 wait_callback = SvREFCNT_inc (POPs);
457 SvREFCNT_dec (req->callback);
458 req->callback = SvREFCNT_inc (POPs);
459 }
460
461 ++nreqs;
462
463 X_LOCK (reqlock);
464 ++nready;
465 reqq_push (&req_queue, req);
466 X_COND_SIGNAL (reqwait);
467 X_UNLOCK (reqlock);
468
469 maybe_start_thread ();
470
471 if (wait_callback)
472 {
473 dSP;
474 PUSHMARK (SP);
475 PUTBACK;
476 call_sv (wait_callback, G_DISCARD);
477 SvREFCNT_dec (wait_callback);
478 }
479 }
480
481 static void end_thread (void)
482 {
483 aio_req req;
484
485 Newz (0, req, 1, aio_cb);
486
487 req->type = REQ_QUIT;
488 req->pri = PRI_MAX + PRI_BIAS;
489
490 X_LOCK (reqlock);
491 reqq_push (&req_queue, req);
492 X_COND_SIGNAL (reqwait);
493 X_UNLOCK (reqlock);
494
495 X_LOCK (wrklock);
496 --started;
497 X_UNLOCK (wrklock);
498 }
499
500 static void set_max_idle (int nthreads)
501 {
502 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
503 max_idle = nthreads <= 0 ? 1 : nthreads;
504 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
505 }
506
507 static void min_parallel (int nthreads)
508 {
509 if (wanted < nthreads)
510 wanted = nthreads;
511 }
512
513 static void max_parallel (int nthreads)
514 {
515 if (wanted > nthreads)
516 wanted = nthreads;
517
518 while (started > wanted)
519 end_thread ();
520 }
521
522 static void poll_wait ()
523 {
524 fd_set rfd;
525
526 while (nreqs)
527 {
528 int size;
529 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
530 size = res_queue.size;
531 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
532
533 if (size)
534 return;
535
536 maybe_start_thread ();
537
538 FD_ZERO (&rfd);
539 FD_SET (respipe [0], &rfd);
540
541 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
542 }
543 }
544
545 static int poll_cb ()
546 {
547 dSP;
548 int count = 0;
549 int maxreqs = max_poll_reqs;
550 int do_croak = 0;
551 struct timeval tv_start, tv_now;
552 aio_req req;
553
554 if (max_poll_time)
555 gettimeofday (&tv_start, 0);
556
557 for (;;)
558 {
559 for (;;)
560 {
561 maybe_start_thread ();
562
563 X_LOCK (reslock);
564 req = reqq_shift (&res_queue);
565
566 if (req)
567 {
568 --npending;
569
570 if (!res_queue.size)
571 {
572 /* read any signals sent by the worker threads */
573 char buf [4];
574 while (respipe_read (respipe [0], buf, 4) == 4)
575 ;
576 }
577 }
578
579 X_UNLOCK (reslock);
580
581 if (!req)
582 break;
583
584 --nreqs;
585
586 if (!req_invoke (req))
587 {
588 req_free (req);
589 croak (0);
590 }
591
592 count++;
593
594 req_free (req);
595
596 if (maxreqs && !--maxreqs)
597 break;
598
599 if (max_poll_time)
600 {
601 gettimeofday (&tv_now, 0);
602
603 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
604 break;
605 }
606 }
607
608 if (nreqs <= max_outstanding)
609 break;
610
611 poll_wait ();
612
613 ++maxreqs;
614 }
615
616 return count;
617 }
618
619 /*****************************************************************************/
620
621 X_THREAD_PROC (bdb_proc)
622 {
623 aio_req req;
624 struct timespec ts;
625 worker *self = (worker *)thr_arg;
626
627 /* try to distribute timeouts somewhat evenly */
628 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
629
630 for (;;)
631 {
632 ts.tv_sec = time (0) + IDLE_TIMEOUT;
633
634 X_LOCK (reqlock);
635
636 for (;;)
637 {
638 self->req = req = reqq_shift (&req_queue);
639
640 if (req)
641 break;
642
643 ++idle;
644
645 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
646 == ETIMEDOUT)
647 {
648 if (idle > max_idle)
649 {
650 --idle;
651 X_UNLOCK (reqlock);
652 X_LOCK (wrklock);
653 --started;
654 X_UNLOCK (wrklock);
655 goto quit;
656 }
657
658 /* we are allowed to idle, so do so without any timeout */
659 X_COND_WAIT (reqwait, reqlock);
660 ts.tv_sec = time (0) + IDLE_TIMEOUT;
661 }
662
663 --idle;
664 }
665
666 --nready;
667
668 X_UNLOCK (reqlock);
669
670 switch (req->type)
671 {
672 case REQ_QUIT:
673 req->result = ENOSYS;
674 goto quit;
675
676 case REQ_ENV_OPEN:
677 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
678 break;
679
680 case REQ_ENV_CLOSE:
681 req->result = req->env->close (req->env, req->uint1);
682 break;
683
684 case REQ_ENV_TXN_CHECKPOINT:
685 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
686 break;
687
688 case REQ_ENV_LOCK_DETECT:
689 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
690 break;
691
692 case REQ_ENV_MEMP_SYNC:
693 req->result = req->env->memp_sync (req->env, 0);
694 break;
695
696 case REQ_ENV_MEMP_TRICKLE:
697 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
698 break;
699
700 case REQ_DB_OPEN:
701 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
702 break;
703
704 case REQ_DB_CLOSE:
705 req->result = req->db->close (req->db, req->uint1);
706 break;
707
708 case REQ_DB_COMPACT:
709 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
710 break;
711
712 case REQ_DB_SYNC:
713 req->result = req->db->sync (req->db, req->uint1);
714 break;
715
716 case REQ_DB_PUT:
717 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
718 break;
719
720 case REQ_DB_GET:
721 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
722 break;
723
724 case REQ_DB_PGET:
725 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
726 break;
727
728 case REQ_DB_DEL:
729 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
730 break;
731
732 case REQ_DB_KEY_RANGE:
733 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
734 break;
735
736 case REQ_TXN_COMMIT:
737 req->result = req->txn->commit (req->txn, req->uint1);
738 break;
739
740 case REQ_TXN_ABORT:
741 req->result = req->txn->abort (req->txn);
742 break;
743
744 case REQ_TXN_FINISH:
745 if (req->txn->flags & TXN_DEADLOCK)
746 req->result = req->txn->commit (req->txn, req->uint1);
747 else
748 {
749 req->result = req->txn->abort (req->txn);
750 if (!req->result)
751 req->result = DB_LOCK_DEADLOCK;
752 }
753 break;
754
755 case REQ_C_CLOSE:
756 req->result = req->dbc->c_close (req->dbc);
757 break;
758
759 case REQ_C_COUNT:
760 {
761 db_recno_t recno;
762 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
763 req->uv1 = recno;
764 }
765 break;
766
767 case REQ_C_PUT:
768 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
769 break;
770
771 case REQ_C_GET:
772 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
773 break;
774
775 case REQ_C_PGET:
776 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
777 break;
778
779 case REQ_C_DEL:
780 req->result = req->dbc->c_del (req->dbc, req->uint1);
781 break;
782
783 case REQ_SEQ_OPEN:
784 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
785 break;
786
787 case REQ_SEQ_CLOSE:
788 req->result = req->seq->close (req->seq, req->uint1);
789 break;
790
791 case REQ_SEQ_GET:
792 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
793 break;
794
795 case REQ_SEQ_REMOVE:
796 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
797 break;
798
799 default:
800 req->result = ENOSYS;
801 break;
802 }
803
804 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
805 req->txn->flags |= TXN_DEADLOCK;
806
807 X_LOCK (reslock);
808
809 ++npending;
810
811 if (!reqq_push (&res_queue, req))
812 /* write a dummy byte to the pipe so fh becomes ready */
813 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
814
815 self->req = 0;
816 worker_clear (self);
817
818 X_UNLOCK (reslock);
819 }
820
821 quit:
822 X_LOCK (wrklock);
823 worker_free (self);
824 X_UNLOCK (wrklock);
825
826 return 0;
827 }
828
829 /*****************************************************************************/
830
831 static void atfork_prepare (void)
832 {
833 X_LOCK (wrklock);
834 X_LOCK (reqlock);
835 X_LOCK (reslock);
836 }
837
838 static void atfork_parent (void)
839 {
840 X_UNLOCK (reslock);
841 X_UNLOCK (reqlock);
842 X_UNLOCK (wrklock);
843 }
844
845 static void atfork_child (void)
846 {
847 aio_req prv;
848
849 while (prv = reqq_shift (&req_queue))
850 req_free (prv);
851
852 while (prv = reqq_shift (&res_queue))
853 req_free (prv);
854
855 while (wrk_first.next != &wrk_first)
856 {
857 worker *wrk = wrk_first.next;
858
859 if (wrk->req)
860 req_free (wrk->req);
861
862 worker_clear (wrk);
863 worker_free (wrk);
864 }
865
866 started = 0;
867 idle = 0;
868 nreqs = 0;
869 nready = 0;
870 npending = 0;
871
872 respipe_close (respipe [0]);
873 respipe_close (respipe [1]);
874
875 create_pipe (respipe);
876
877 atfork_parent ();
878 }
879
880 #define dREQ(reqtype) \
881 aio_req req; \
882 int req_pri = next_pri; \
883 next_pri = DEFAULT_PRI + PRI_BIAS; \
884 \
885 if (SvOK (callback) && !SvROK (callback)) \
886 croak ("callback must be undef or of reference type"); \
887 \
888 Newz (0, req, 1, aio_cb); \
889 if (!req) \
890 croak ("out of memory during aio_req allocation"); \
891 \
892 req->callback = newSVsv (callback); \
893 req->type = (reqtype); \
894 req->pri = req_pri
895
896 #define REQ_SEND \
897 req_send (req)
898
899 #define SvPTR(var, arg, type, class, nullok) \
900 if (!SvOK (arg)) \
901 { \
902 if (!nullok) \
903 croak (# var " must be a " # class " object, not undef"); \
904 \
905 (var) = 0; \
906 } \
907 else if (sv_derived_from ((arg), # class)) \
908 { \
909 IV tmp = SvIV ((SV*) SvRV (arg)); \
910 (var) = INT2PTR (type, tmp); \
911 if (!var) \
912 croak (# var " is not a valid " # class " object anymore"); \
913 } \
914 else \
915 croak (# var " is not of type " # class); \
916 \
917
918 static void
919 ptr_nuke (SV *sv)
920 {
921 assert (SvROK (sv));
922 sv_setiv (SvRV (sv), 0);
923 }
924
925 MODULE = BDB PACKAGE = BDB
926
927 PROTOTYPES: ENABLE
928
929 BOOT:
930 {
931 HV *stash = gv_stashpv ("BDB", 1);
932
933 static const struct {
934 const char *name;
935 IV iv;
936 } *civ, const_iv[] = {
937 #define const_iv(name) { # name, (IV)DB_ ## name },
938 const_iv (RPCCLIENT)
939 const_iv (INIT_CDB)
940 const_iv (INIT_LOCK)
941 const_iv (INIT_LOG)
942 const_iv (INIT_MPOOL)
943 const_iv (INIT_REP)
944 const_iv (INIT_TXN)
945 const_iv (RECOVER)
946 const_iv (INIT_TXN)
947 const_iv (RECOVER_FATAL)
948 const_iv (CREATE)
949 const_iv (USE_ENVIRON)
950 const_iv (USE_ENVIRON_ROOT)
951 const_iv (LOCKDOWN)
952 const_iv (PRIVATE)
953 const_iv (REGISTER)
954 const_iv (SYSTEM_MEM)
955 const_iv (AUTO_COMMIT)
956 const_iv (CDB_ALLDB)
957 const_iv (DIRECT_DB)
958 const_iv (DIRECT_LOG)
959 const_iv (DSYNC_DB)
960 const_iv (DSYNC_LOG)
961 const_iv (LOG_AUTOREMOVE)
962 const_iv (LOG_INMEMORY)
963 const_iv (NOLOCKING)
964 const_iv (NOMMAP)
965 const_iv (NOPANIC)
966 const_iv (OVERWRITE)
967 const_iv (PANIC_ENVIRONMENT)
968 const_iv (REGION_INIT)
969 const_iv (TIME_NOTGRANTED)
970 const_iv (TXN_NOSYNC)
971 const_iv (TXN_WRITE_NOSYNC)
972 const_iv (WRITECURSOR)
973 const_iv (YIELDCPU)
974 const_iv (ENCRYPT_AES)
975 const_iv (XA_CREATE)
976 const_iv (BTREE)
977 const_iv (HASH)
978 const_iv (QUEUE)
979 const_iv (RECNO)
980 const_iv (UNKNOWN)
981 const_iv (EXCL)
982 const_iv (READ_COMMITTED)
983 const_iv (READ_UNCOMMITTED)
984 const_iv (TRUNCATE)
985 const_iv (NOSYNC)
986 const_iv (CHKSUM)
987 const_iv (ENCRYPT)
988 const_iv (TXN_NOT_DURABLE)
989 const_iv (DUP)
990 const_iv (DUPSORT)
991 const_iv (RECNUM)
992 const_iv (RENUMBER)
993 const_iv (REVSPLITOFF)
994 const_iv (INORDER)
995 const_iv (CONSUME)
996 const_iv (CONSUME_WAIT)
997 const_iv (GET_BOTH)
998 const_iv (GET_BOTH_RANGE)
999 //const_iv (SET_RECNO)
1000 //const_iv (MULTIPLE)
1001 const_iv (SNAPSHOT)
1002 const_iv (JOIN_ITEM)
1003 const_iv (RMW)
1004
1005 const_iv (NOTFOUND)
1006 const_iv (KEYEMPTY)
1007 const_iv (LOCK_DEADLOCK)
1008 const_iv (LOCK_NOTGRANTED)
1009 const_iv (RUNRECOVERY)
1010 const_iv (OLD_VERSION)
1011 const_iv (REP_HANDLE_DEAD)
1012 const_iv (REP_LOCKOUT)
1013 const_iv (SECONDARY_BAD)
1014
1015 const_iv (FREE_SPACE)
1016 const_iv (FREELIST_ONLY)
1017
1018 const_iv (APPEND)
1019 const_iv (NODUPDATA)
1020 const_iv (NOOVERWRITE)
1021
1022 const_iv (TXN_NOWAIT)
1023 const_iv (TXN_SYNC)
1024
1025 const_iv (SET_LOCK_TIMEOUT)
1026 const_iv (SET_TXN_TIMEOUT)
1027
1028 const_iv (JOIN_ITEM)
1029 const_iv (FIRST)
1030 const_iv (NEXT)
1031 const_iv (NEXT_DUP)
1032 const_iv (NEXT_NODUP)
1033 const_iv (PREV)
1034 const_iv (PREV_NODUP)
1035 const_iv (SET)
1036 const_iv (SET_RANGE)
1037 const_iv (LAST)
1038 const_iv (BEFORE)
1039 const_iv (AFTER)
1040 const_iv (CURRENT)
1041 const_iv (KEYFIRST)
1042 const_iv (KEYLAST)
1043 const_iv (NODUPDATA)
1044
1045 const_iv (FORCE)
1046
1047 const_iv (LOCK_DEFAULT)
1048 const_iv (LOCK_EXPIRE)
1049 const_iv (LOCK_MAXLOCKS)
1050 const_iv (LOCK_MAXWRITE)
1051 const_iv (LOCK_MINLOCKS)
1052 const_iv (LOCK_MINWRITE)
1053 const_iv (LOCK_OLDEST)
1054 const_iv (LOCK_RANDOM)
1055 const_iv (LOCK_YOUNGEST)
1056
1057 const_iv (SEQ_DEC)
1058 const_iv (SEQ_INC)
1059 const_iv (SEQ_WRAP)
1060
1061 const_iv (BUFFER_SMALL)
1062 const_iv (DONOTINDEX)
1063 const_iv (KEYEMPTY )
1064 const_iv (KEYEXIST )
1065 const_iv (LOCK_DEADLOCK)
1066 const_iv (LOCK_NOTGRANTED)
1067 const_iv (LOG_BUFFER_FULL)
1068 const_iv (NOSERVER)
1069 const_iv (NOSERVER_HOME)
1070 const_iv (NOSERVER_ID)
1071 const_iv (NOTFOUND)
1072 const_iv (OLD_VERSION)
1073 const_iv (PAGE_NOTFOUND)
1074 const_iv (REP_DUPMASTER)
1075 const_iv (REP_HANDLE_DEAD)
1076 const_iv (REP_HOLDELECTION)
1077 const_iv (REP_IGNORE)
1078 const_iv (REP_ISPERM)
1079 const_iv (REP_JOIN_FAILURE)
1080 const_iv (REP_LOCKOUT)
1081 const_iv (REP_NEWMASTER)
1082 const_iv (REP_NEWSITE)
1083 const_iv (REP_NOTPERM)
1084 const_iv (REP_UNAVAIL)
1085 const_iv (RUNRECOVERY)
1086 const_iv (SECONDARY_BAD)
1087 const_iv (VERIFY_BAD)
1088 const_iv (VERSION_MISMATCH)
1089
1090 const_iv (VERB_DEADLOCK)
1091 const_iv (VERB_RECOVERY)
1092 const_iv (VERB_REGISTER)
1093 const_iv (VERB_REPLICATION)
1094 const_iv (VERB_WAITSFOR)
1095
1096 const_iv (VERSION_MAJOR)
1097 const_iv (VERSION_MINOR)
1098 const_iv (VERSION_PATCH)
1099 #if DB_VERSION_MINOR >= 5
1100 const_iv (MULTIVERSION)
1101 const_iv (TXN_SNAPSHOT)
1102 #endif
1103 #if DB_VERSION_MINOR >= 6
1104 const_iv (PREV_DUP)
1105 # if 0
1106 const_iv (PRIORITY_UNCHANGED)
1107 const_iv (PRIORITY_VERY_LOW)
1108 const_iv (PRIORITY_LOW)
1109 const_iv (PRIORITY_DEFAULT)
1110 const_iv (PRIORITY_HIGH)
1111 const_iv (PRIORITY_VERY_HIGH)
1112 # endif
1113 #endif
1114 };
1115
1116 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1117 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1118
1119 newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
1120 newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1121
1122 create_pipe (respipe);
1123
1124 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1125 #ifdef _WIN32
1126 X_MUTEX_CHECK (wrklock);
1127 X_MUTEX_CHECK (reslock);
1128 X_MUTEX_CHECK (reqlock);
1129
1130 X_COND_CHECK (reqwait);
1131 #endif
1132 }
1133
1134 void
1135 max_poll_reqs (int nreqs)
1136 PROTOTYPE: $
1137 CODE:
1138 max_poll_reqs = nreqs;
1139
1140 void
1141 max_poll_time (double nseconds)
1142 PROTOTYPE: $
1143 CODE:
1144 max_poll_time = nseconds * AIO_TICKS;
1145
1146 void
1147 min_parallel (int nthreads)
1148 PROTOTYPE: $
1149
1150 void
1151 max_parallel (int nthreads)
1152 PROTOTYPE: $
1153
1154 void
1155 max_idle (int nthreads)
1156 PROTOTYPE: $
1157 CODE:
1158 set_max_idle (nthreads);
1159
1160 int
1161 max_outstanding (int maxreqs)
1162 PROTOTYPE: $
1163 CODE:
1164 RETVAL = max_outstanding;
1165 max_outstanding = maxreqs;
1166 OUTPUT:
1167 RETVAL
1168
1169 int
1170 dbreq_pri (int pri = 0)
1171 PROTOTYPE: ;$
1172 CODE:
1173 RETVAL = next_pri - PRI_BIAS;
1174 if (items > 0)
1175 {
1176 if (pri < PRI_MIN) pri = PRI_MIN;
1177 if (pri > PRI_MAX) pri = PRI_MAX;
1178 next_pri = pri + PRI_BIAS;
1179 }
1180 OUTPUT:
1181 RETVAL
1182
1183 void
1184 dbreq_nice (int nice = 0)
1185 CODE:
1186 nice = next_pri - nice;
1187 if (nice < PRI_MIN) nice = PRI_MIN;
1188 if (nice > PRI_MAX) nice = PRI_MAX;
1189 next_pri = nice + PRI_BIAS;
1190
1191 void
1192 flush ()
1193 PROTOTYPE:
1194 CODE:
1195 while (nreqs)
1196 {
1197 poll_wait ();
1198 poll_cb ();
1199 }
1200
1201 int
1202 poll ()
1203 PROTOTYPE:
1204 CODE:
1205 poll_wait ();
1206 RETVAL = poll_cb ();
1207 OUTPUT:
1208 RETVAL
1209
1210 int
1211 poll_fileno ()
1212 PROTOTYPE:
1213 CODE:
1214 RETVAL = respipe [0];
1215 OUTPUT:
1216 RETVAL
1217
1218 int
1219 poll_cb (...)
1220 PROTOTYPE:
1221 CODE:
1222 RETVAL = poll_cb ();
1223 OUTPUT:
1224 RETVAL
1225
1226 void
1227 poll_wait ()
1228 PROTOTYPE:
1229 CODE:
1230 poll_wait ();
1231
1232 int
1233 nreqs ()
1234 PROTOTYPE:
1235 CODE:
1236 RETVAL = nreqs;
1237 OUTPUT:
1238 RETVAL
1239
1240 int
1241 nready ()
1242 PROTOTYPE:
1243 CODE:
1244 RETVAL = get_nready ();
1245 OUTPUT:
1246 RETVAL
1247
1248 int
1249 npending ()
1250 PROTOTYPE:
1251 CODE:
1252 RETVAL = get_npending ();
1253 OUTPUT:
1254 RETVAL
1255
1256 int
1257 nthreads ()
1258 PROTOTYPE:
1259 CODE:
1260 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1261 RETVAL = started;
1262 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1263 OUTPUT:
1264 RETVAL
1265
1266 void
1267 set_sync_prepare (SV *cb)
1268 PROTOTYPE: &
1269 CODE:
1270 SvREFCNT_dec (prepare_cb);
1271 prepare_cb = newSVsv (cb);
1272
1273 char *
1274 strerror (int errorno = errno)
1275 PROTOTYPE: ;$
1276 CODE:
1277 RETVAL = db_strerror (errorno);
1278 OUTPUT:
1279 RETVAL
1280
1281 DB_ENV *
1282 db_env_create (U32 env_flags = 0)
1283 CODE:
1284 {
1285 errno = db_env_create (&RETVAL, env_flags);
1286 if (errno)
1287 croak ("db_env_create: %s", db_strerror (errno));
1288
1289 if (0)
1290 {
1291 RETVAL->set_errcall (RETVAL, debug_errcall);
1292 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1293 }
1294 }
1295 OUTPUT:
1296 RETVAL
1297
1298 void
1299 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1300 CODE:
1301 {
1302 dREQ (REQ_ENV_OPEN);
1303
1304 env->set_thread_count (env, wanted + 2);
1305
1306 req->env = env;
1307 req->uint1 = open_flags | DB_THREAD;
1308 req->int1 = mode;
1309 req->buf1 = strdup_ornull (db_home);
1310 REQ_SEND;
1311 }
1312
1313 void
1314 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
1315 CODE:
1316 {
1317 dREQ (REQ_ENV_CLOSE);
1318 req->env = env;
1319 req->uint1 = flags;
1320 REQ_SEND;
1321 ptr_nuke (ST (0));
1322 }
1323
1324 void
1325 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1326 CODE:
1327 {
1328 dREQ (REQ_ENV_TXN_CHECKPOINT);
1329 req->env = env;
1330 req->uint1 = kbyte;
1331 req->int1 = min;
1332 req->uint2 = flags;
1333 REQ_SEND;
1334 }
1335
1336 void
1337 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
1338 CODE:
1339 {
1340 dREQ (REQ_ENV_LOCK_DETECT);
1341 req->env = env;
1342 req->uint1 = flags;
1343 req->uint2 = atype;
1344 REQ_SEND;
1345 }
1346
1347 void
1348 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
1349 CODE:
1350 {
1351 dREQ (REQ_ENV_MEMP_SYNC);
1352 req->env = env;
1353 REQ_SEND;
1354 }
1355
1356 void
1357 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
1358 CODE:
1359 {
1360 dREQ (REQ_ENV_MEMP_TRICKLE);
1361 req->env = env;
1362 req->int1 = percent;
1363 REQ_SEND;
1364 }
1365
1366
1367 DB *
1368 db_create (DB_ENV *env = 0, U32 flags = 0)
1369 CODE:
1370 {
1371 errno = db_create (&RETVAL, env, flags);
1372 if (errno)
1373 croak ("db_create: %s", db_strerror (errno));
1374
1375 if (RETVAL)
1376 RETVAL->app_private = (void *)newSVsv (ST (0));
1377 }
1378 OUTPUT:
1379 RETVAL
1380
1381 void
1382 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
1383 CODE:
1384 {
1385 dREQ (REQ_DB_OPEN);
1386 req->db = db;
1387 req->txn = txnid;
1388 req->buf1 = strdup_ornull (file);
1389 req->buf2 = strdup_ornull (database);
1390 req->int1 = type;
1391 req->uint1 = flags | DB_THREAD;
1392 req->int2 = mode;
1393 REQ_SEND;
1394 }
1395
1396 void
1397 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1398 CODE:
1399 {
1400 dREQ (REQ_DB_CLOSE);
1401 req->db = db;
1402 req->uint1 = flags;
1403 req->sv1 = (SV *)db->app_private;
1404 REQ_SEND;
1405 ptr_nuke (ST (0));
1406 }
1407
1408 void
1409 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)
1410 CODE:
1411 {
1412 dREQ (REQ_DB_COMPACT);
1413 req->db = db;
1414 req->txn = txn;
1415 sv_to_dbt (&req->dbt1, start);
1416 sv_to_dbt (&req->dbt2, stop);
1417 req->uint1 = flags;
1418 REQ_SEND;
1419 }
1420
1421 void
1422 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1423 CODE:
1424 {
1425 dREQ (REQ_DB_SYNC);
1426 req->db = db;
1427 req->uint1 = flags;
1428 REQ_SEND;
1429 }
1430
1431 void
1432 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
1433 CODE:
1434 {
1435 dREQ (REQ_DB_KEY_RANGE);
1436 req->db = db;
1437 req->txn = txn;
1438 sv_to_dbt (&req->dbt1, key);
1439 req->uint1 = flags;
1440 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1441 REQ_SEND;
1442 }
1443
1444 void
1445 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1446 CODE:
1447 {
1448 dREQ (REQ_DB_PUT);
1449 req->db = db;
1450 req->txn = txn;
1451 sv_to_dbt (&req->dbt1, key);
1452 sv_to_dbt (&req->dbt2, data);
1453 req->uint1 = flags;
1454 REQ_SEND;
1455 }
1456
1457 void
1458 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1459 CODE:
1460 {
1461 dREQ (REQ_DB_GET);
1462 req->db = db;
1463 req->txn = txn;
1464 req->uint1 = flags;
1465 sv_to_dbt (&req->dbt1, key);
1466 req->dbt3.flags = DB_DBT_MALLOC;
1467 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1468 REQ_SEND;
1469 }
1470
1471 void
1472 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1473 CODE:
1474 {
1475 dREQ (REQ_DB_PGET);
1476 req->db = db;
1477 req->txn = txn;
1478 req->uint1 = flags;
1479 sv_to_dbt (&req->dbt1, key);
1480 sv_to_dbt (&req->dbt2, pkey);
1481 req->dbt3.flags = DB_DBT_MALLOC;
1482 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1483 REQ_SEND;
1484 }
1485
1486 void
1487 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1488 CODE:
1489 {
1490 dREQ (REQ_DB_DEL);
1491 req->db = db;
1492 req->txn = txn;
1493 req->uint1 = flags;
1494 sv_to_dbt (&req->dbt1, key);
1495 REQ_SEND;
1496 }
1497
1498 void
1499 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1500 CODE:
1501 {
1502 dREQ (REQ_TXN_COMMIT);
1503 req->txn = txn;
1504 req->uint1 = flags;
1505 REQ_SEND;
1506 ptr_nuke (ST (0));
1507 }
1508
1509 void
1510 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
1511 CODE:
1512 {
1513 dREQ (REQ_TXN_ABORT);
1514 req->txn = txn;
1515 REQ_SEND;
1516 ptr_nuke (ST (0));
1517 }
1518
1519 void
1520 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1521 CODE:
1522 {
1523 dREQ (REQ_TXN_FINISH);
1524 req->txn = txn;
1525 req->uint1 = flags;
1526 REQ_SEND;
1527 ptr_nuke (ST (0));
1528 }
1529
1530 void
1531 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1532 CODE:
1533 {
1534 dREQ (REQ_C_CLOSE);
1535 req->dbc = dbc;
1536 REQ_SEND;
1537 ptr_nuke (ST (0));
1538 }
1539
1540 void
1541 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
1542 CODE:
1543 {
1544 dREQ (REQ_C_COUNT);
1545 req->dbc = dbc;
1546 req->sv1 = SvREFCNT_inc (count);
1547 REQ_SEND;
1548 }
1549
1550 void
1551 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1552 CODE:
1553 {
1554 dREQ (REQ_C_PUT);
1555 req->dbc = dbc;
1556 sv_to_dbt (&req->dbt1, key);
1557 sv_to_dbt (&req->dbt2, data);
1558 req->uint1 = flags;
1559 REQ_SEND;
1560 }
1561
1562 void
1563 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1564 CODE:
1565 {
1566 dREQ (REQ_C_GET);
1567 req->dbc = dbc;
1568 req->uint1 = flags;
1569 if ((flags & DB_SET) == DB_SET
1570 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1571 sv_to_dbt (&req->dbt1, key);
1572 else
1573 req->dbt1.flags = DB_DBT_MALLOC;
1574
1575 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1576
1577 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1578 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1579 sv_to_dbt (&req->dbt3, data);
1580 else
1581 req->dbt3.flags = DB_DBT_MALLOC;
1582
1583 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1584 REQ_SEND;
1585 }
1586
1587 void
1588 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1589 CODE:
1590 {
1591 dREQ (REQ_C_PGET);
1592 req->dbc = dbc;
1593 req->uint1 = flags;
1594 if ((flags & DB_SET) == DB_SET
1595 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1596 sv_to_dbt (&req->dbt1, key);
1597 else
1598 req->dbt1.flags = DB_DBT_MALLOC;
1599
1600 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1601
1602 req->dbt2.flags = DB_DBT_MALLOC;
1603 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1604
1605 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1606 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1607 sv_to_dbt (&req->dbt3, data);
1608 else
1609 req->dbt3.flags = DB_DBT_MALLOC;
1610
1611 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1612 REQ_SEND;
1613 }
1614
1615 void
1616 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
1617 CODE:
1618 {
1619 dREQ (REQ_C_DEL);
1620 req->dbc = dbc;
1621 req->uint1 = flags;
1622 REQ_SEND;
1623 }
1624
1625
1626 void
1627 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1628 CODE:
1629 {
1630 dREQ (REQ_SEQ_OPEN);
1631 req->seq = seq;
1632 req->txn = txnid;
1633 req->uint1 = flags | DB_THREAD;
1634 sv_to_dbt (&req->dbt1, key);
1635 REQ_SEND;
1636 }
1637
1638 void
1639 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
1640 CODE:
1641 {
1642 dREQ (REQ_SEQ_CLOSE);
1643 req->seq = seq;
1644 req->uint1 = flags;
1645 REQ_SEND;
1646 ptr_nuke (ST (0));
1647 }
1648
1649 void
1650 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)
1651 CODE:
1652 {
1653 dREQ (REQ_SEQ_GET);
1654 req->seq = seq;
1655 req->txn = txnid;
1656 req->int1 = delta;
1657 req->uint1 = flags;
1658 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1659 REQ_SEND;
1660 }
1661
1662 void
1663 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1664 CODE:
1665 {
1666 dREQ (REQ_SEQ_REMOVE);
1667 req->seq = seq;
1668 req->txn = txnid;
1669 req->uint1 = flags;
1670 REQ_SEND;
1671 }
1672
1673
1674 MODULE = BDB PACKAGE = BDB::Env
1675
1676 void
1677 DESTROY (DB_ENV_ornull *env)
1678 CODE:
1679 if (env)
1680 env->close (env, 0);
1681
1682 int set_data_dir (DB_ENV *env, const char *dir)
1683 CODE:
1684 RETVAL = env->set_data_dir (env, dir);
1685 OUTPUT:
1686 RETVAL
1687
1688 int set_tmp_dir (DB_ENV *env, const char *dir)
1689 CODE:
1690 RETVAL = env->set_tmp_dir (env, dir);
1691 OUTPUT:
1692 RETVAL
1693
1694 int set_lg_dir (DB_ENV *env, const char *dir)
1695 CODE:
1696 RETVAL = env->set_lg_dir (env, dir);
1697 OUTPUT:
1698 RETVAL
1699
1700 int set_shm_key (DB_ENV *env, long shm_key)
1701 CODE:
1702 RETVAL = env->set_shm_key (env, shm_key);
1703 OUTPUT:
1704 RETVAL
1705
1706 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1707 CODE:
1708 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1709 OUTPUT:
1710 RETVAL
1711
1712 int set_flags (DB_ENV *env, U32 flags, int onoff)
1713 CODE:
1714 RETVAL = env->set_flags (env, flags, onoff);
1715 OUTPUT:
1716 RETVAL
1717
1718 void set_errfile (DB_ENV *env, FILE *errfile = 0)
1719 CODE:
1720 env->set_errfile (env, errfile);
1721
1722 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
1723 CODE:
1724 env->set_msgfile (env, msgfile);
1725
1726 int set_verbose (DB_ENV *env, U32 which, int onoff = 1)
1727 CODE:
1728 RETVAL = env->set_verbose (env, which, onoff);
1729 OUTPUT:
1730 RETVAL
1731
1732 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1733 CODE:
1734 RETVAL = env->set_encrypt (env, password, flags);
1735 OUTPUT:
1736 RETVAL
1737
1738 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1739 CODE:
1740 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1741 OUTPUT:
1742 RETVAL
1743
1744 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
1745 CODE:
1746 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
1747 OUTPUT:
1748 RETVAL
1749
1750 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
1751 CODE:
1752 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
1753 OUTPUT:
1754 RETVAL
1755
1756 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
1757 CODE:
1758 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
1759 OUTPUT:
1760 RETVAL
1761
1762 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
1763 CODE:
1764 RETVAL = env->set_lk_detect (env, detect);
1765 OUTPUT:
1766 RETVAL
1767
1768 int set_lk_max_lockers (DB_ENV *env, U32 max)
1769 CODE:
1770 RETVAL = env->set_lk_max_lockers (env, max);
1771 OUTPUT:
1772 RETVAL
1773
1774 int set_lk_max_locks (DB_ENV *env, U32 max)
1775 CODE:
1776 RETVAL = env->set_lk_max_locks (env, max);
1777 OUTPUT:
1778 RETVAL
1779
1780 int set_lk_max_objects (DB_ENV *env, U32 max)
1781 CODE:
1782 RETVAL = env->set_lk_max_objects (env, max);
1783 OUTPUT:
1784 RETVAL
1785
1786 int set_lg_bsize (DB_ENV *env, U32 max)
1787 CODE:
1788 RETVAL = env->set_lg_bsize (env, max);
1789 OUTPUT:
1790 RETVAL
1791
1792 int set_lg_max (DB_ENV *env, U32 max)
1793 CODE:
1794 RETVAL = env->set_lg_max (env, max);
1795 OUTPUT:
1796 RETVAL
1797
1798 DB_TXN *
1799 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1800 CODE:
1801 errno = env->txn_begin (env, parent, &RETVAL, flags);
1802 if (errno)
1803 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
1804 OUTPUT:
1805 RETVAL
1806
1807 MODULE = BDB PACKAGE = BDB::Db
1808
1809 void
1810 DESTROY (DB_ornull *db)
1811 CODE:
1812 if (db)
1813 {
1814 SV *env = (SV *)db->app_private;
1815 db->close (db, 0);
1816 SvREFCNT_dec (env);
1817 }
1818
1819 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1820 CODE:
1821 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1822 OUTPUT:
1823 RETVAL
1824
1825 int set_flags (DB *db, U32 flags)
1826 CODE:
1827 RETVAL = db->set_flags (db, flags);
1828 OUTPUT:
1829 RETVAL
1830
1831 int set_encrypt (DB *db, const char *password, U32 flags)
1832 CODE:
1833 RETVAL = db->set_encrypt (db, password, flags);
1834 OUTPUT:
1835 RETVAL
1836
1837 int set_lorder (DB *db, int lorder)
1838 CODE:
1839 RETVAL = db->set_lorder (db, lorder);
1840 OUTPUT:
1841 RETVAL
1842
1843 int set_bt_minkey (DB *db, U32 minkey)
1844 CODE:
1845 RETVAL = db->set_bt_minkey (db, minkey);
1846 OUTPUT:
1847 RETVAL
1848
1849 int set_re_delim (DB *db, int delim)
1850 CODE:
1851 RETVAL = db->set_re_delim (db, delim);
1852 OUTPUT:
1853 RETVAL
1854
1855 int set_re_pad (DB *db, int re_pad)
1856 CODE:
1857 RETVAL = db->set_re_pad (db, re_pad);
1858 OUTPUT:
1859 RETVAL
1860
1861 int set_re_source (DB *db, char *source)
1862 CODE:
1863 RETVAL = db->set_re_source (db, source);
1864 OUTPUT:
1865 RETVAL
1866
1867 int set_re_len (DB *db, U32 re_len)
1868 CODE:
1869 RETVAL = db->set_re_len (db, re_len);
1870 OUTPUT:
1871 RETVAL
1872
1873 int set_h_ffactor (DB *db, U32 h_ffactor)
1874 CODE:
1875 RETVAL = db->set_h_ffactor (db, h_ffactor);
1876 OUTPUT:
1877 RETVAL
1878
1879 int set_h_nelem (DB *db, U32 h_nelem)
1880 CODE:
1881 RETVAL = db->set_h_nelem (db, h_nelem);
1882 OUTPUT:
1883 RETVAL
1884
1885 int set_q_extentsize (DB *db, U32 extentsize)
1886 CODE:
1887 RETVAL = db->set_q_extentsize (db, extentsize);
1888 OUTPUT:
1889 RETVAL
1890
1891 DBC *
1892 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
1893 CODE:
1894 errno = db->cursor (db, txn, &RETVAL, flags);
1895 if (errno)
1896 croak ("DB->cursor: %s", db_strerror (errno));
1897 OUTPUT:
1898 RETVAL
1899
1900 DB_SEQUENCE *
1901 sequence (DB *db, U32 flags = 0)
1902 CODE:
1903 {
1904 errno = db_sequence_create (&RETVAL, db, flags);
1905 if (errno)
1906 croak ("db_sequence_create: %s", db_strerror (errno));
1907 }
1908 OUTPUT:
1909 RETVAL
1910
1911
1912 MODULE = BDB PACKAGE = BDB::Txn
1913
1914 void
1915 DESTROY (DB_TXN_ornull *txn)
1916 CODE:
1917 if (txn)
1918 txn->abort (txn);
1919
1920 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1921 CODE:
1922 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1923 OUTPUT:
1924 RETVAL
1925
1926 int failed (DB_TXN *txn)
1927 CODE:
1928 RETVAL = !!(txn->flags & TXN_DEADLOCK);
1929 OUTPUT:
1930 RETVAL
1931
1932
1933 MODULE = BDB PACKAGE = BDB::Cursor
1934
1935 void
1936 DESTROY (DBC_ornull *dbc)
1937 CODE:
1938 if (dbc)
1939 dbc->c_close (dbc);
1940
1941 MODULE = BDB PACKAGE = BDB::Sequence
1942
1943 void
1944 DESTROY (DB_SEQUENCE_ornull *seq)
1945 CODE:
1946 if (seq)
1947 seq->close (seq, 0);
1948
1949 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
1950 CODE:
1951 RETVAL = seq->initial_value (seq, value);
1952 OUTPUT:
1953 RETVAL
1954
1955 int set_cachesize (DB_SEQUENCE *seq, U32 size)
1956 CODE:
1957 RETVAL = seq->set_cachesize (seq, size);
1958 OUTPUT:
1959 RETVAL
1960
1961 int set_flags (DB_SEQUENCE *seq, U32 flags)
1962 CODE:
1963 RETVAL = seq->set_flags (seq, flags);
1964 OUTPUT:
1965 RETVAL
1966
1967 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
1968 CODE:
1969 RETVAL = seq->set_range (seq, min, max);
1970 OUTPUT:
1971 RETVAL
1972