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/cvs/BDB/BDB.xs
Revision: 1.21
Committed: Thu Dec 6 02:44:48 2007 UTC (16 years, 5 months ago) by root
Branch: MAIN
Changes since 1.20: +6 -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_osf [2], respipe [2] = { -1, -1 };
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, (IV)req->seq_t);
350 else
351 sv_setnv_mg (req->sv1, (NV)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_respipe ()
385 {
386 #ifdef _WIN32
387 int arg; /* argg */
388 #endif
389 int old_readfd = respipe [0];
390
391 if (respipe [1] >= 0)
392 respipe_close (TO_SOCKET (respipe [1]));
393
394 #ifdef _WIN32
395 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
396 #else
397 if (pipe (respipe))
398 #endif
399 croak ("unable to initialize result pipe");
400
401 if (old_readfd >= 0)
402 {
403 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
404 croak ("unable to initialize result pipe(2)");
405
406 respipe_close (respipe [0]);
407 respipe [0] = old_readfd;
408 }
409
410 #ifdef _WIN32
411 arg = 1;
412 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
413 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
414 #else
415 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
416 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
417 #endif
418 croak ("unable to initialize result pipe(3)");
419
420 respipe_osf [0] = TO_SOCKET (respipe [0]);
421 respipe_osf [1] = TO_SOCKET (respipe [1]);
422 }
423
424 X_THREAD_PROC (bdb_proc);
425
426 static void start_thread (void)
427 {
428 worker *wrk = calloc (1, sizeof (worker));
429
430 if (!wrk)
431 croak ("unable to allocate worker thread data");
432
433 X_LOCK (wrklock);
434 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
435 {
436 wrk->prev = &wrk_first;
437 wrk->next = wrk_first.next;
438 wrk_first.next->prev = wrk;
439 wrk_first.next = wrk;
440 ++started;
441 }
442 else
443 free (wrk);
444
445 X_UNLOCK (wrklock);
446 }
447
448 static void maybe_start_thread ()
449 {
450 if (get_nthreads () >= wanted)
451 return;
452
453 /* todo: maybe use idle here, but might be less exact */
454 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
455 return;
456
457 start_thread ();
458 }
459
460 static void req_send (aio_req req)
461 {
462 SV *wait_callback = 0;
463
464 // synthesize callback if none given
465 if (!SvOK (req->callback))
466 {
467 int count;
468
469 dSP;
470 PUSHMARK (SP);
471 PUTBACK;
472 count = call_sv (prepare_cb, G_ARRAY);
473 SPAGAIN;
474
475 if (count != 2)
476 croak ("prepare callback must return exactly two values\n");
477
478 wait_callback = SvREFCNT_inc (POPs);
479 SvREFCNT_dec (req->callback);
480 req->callback = SvREFCNT_inc (POPs);
481 }
482
483 ++nreqs;
484
485 X_LOCK (reqlock);
486 ++nready;
487 reqq_push (&req_queue, req);
488 X_COND_SIGNAL (reqwait);
489 X_UNLOCK (reqlock);
490
491 maybe_start_thread ();
492
493 if (wait_callback)
494 {
495 dSP;
496 PUSHMARK (SP);
497 PUTBACK;
498 call_sv (wait_callback, G_DISCARD);
499 SvREFCNT_dec (wait_callback);
500 }
501 }
502
503 static void end_thread (void)
504 {
505 aio_req req;
506
507 Newz (0, req, 1, aio_cb);
508
509 req->type = REQ_QUIT;
510 req->pri = PRI_MAX + PRI_BIAS;
511
512 X_LOCK (reqlock);
513 reqq_push (&req_queue, req);
514 X_COND_SIGNAL (reqwait);
515 X_UNLOCK (reqlock);
516
517 X_LOCK (wrklock);
518 --started;
519 X_UNLOCK (wrklock);
520 }
521
522 static void set_max_idle (int nthreads)
523 {
524 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
525 max_idle = nthreads <= 0 ? 1 : nthreads;
526 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
527 }
528
529 static void min_parallel (int nthreads)
530 {
531 if (wanted < nthreads)
532 wanted = nthreads;
533 }
534
535 static void max_parallel (int nthreads)
536 {
537 if (wanted > nthreads)
538 wanted = nthreads;
539
540 while (started > wanted)
541 end_thread ();
542 }
543
544 static void poll_wait ()
545 {
546 fd_set rfd;
547
548 while (nreqs)
549 {
550 int size;
551 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
552 size = res_queue.size;
553 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
554
555 if (size)
556 return;
557
558 maybe_start_thread ();
559
560 FD_ZERO (&rfd);
561 FD_SET (respipe [0], &rfd);
562
563 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
564 }
565 }
566
567 static int poll_cb ()
568 {
569 dSP;
570 int count = 0;
571 int maxreqs = max_poll_reqs;
572 int do_croak = 0;
573 struct timeval tv_start, tv_now;
574 aio_req req;
575
576 if (max_poll_time)
577 gettimeofday (&tv_start, 0);
578
579 for (;;)
580 {
581 for (;;)
582 {
583 maybe_start_thread ();
584
585 X_LOCK (reslock);
586 req = reqq_shift (&res_queue);
587
588 if (req)
589 {
590 --npending;
591
592 if (!res_queue.size)
593 {
594 /* read any signals sent by the worker threads */
595 char buf [4];
596 while (respipe_read (respipe [0], buf, 4) == 4)
597 ;
598 }
599 }
600
601 X_UNLOCK (reslock);
602
603 if (!req)
604 break;
605
606 --nreqs;
607
608 if (!req_invoke (req))
609 {
610 req_free (req);
611 croak (0);
612 }
613
614 count++;
615
616 req_free (req);
617
618 if (maxreqs && !--maxreqs)
619 break;
620
621 if (max_poll_time)
622 {
623 gettimeofday (&tv_now, 0);
624
625 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
626 break;
627 }
628 }
629
630 if (nreqs <= max_outstanding)
631 break;
632
633 poll_wait ();
634
635 ++maxreqs;
636 }
637
638 return count;
639 }
640
641 /*****************************************************************************/
642
643 X_THREAD_PROC (bdb_proc)
644 {
645 aio_req req;
646 struct timespec ts;
647 worker *self = (worker *)thr_arg;
648
649 /* try to distribute timeouts somewhat evenly */
650 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
651
652 for (;;)
653 {
654 ts.tv_sec = time (0) + IDLE_TIMEOUT;
655
656 X_LOCK (reqlock);
657
658 for (;;)
659 {
660 self->req = req = reqq_shift (&req_queue);
661
662 if (req)
663 break;
664
665 ++idle;
666
667 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
668 == ETIMEDOUT)
669 {
670 if (idle > max_idle)
671 {
672 --idle;
673 X_UNLOCK (reqlock);
674 X_LOCK (wrklock);
675 --started;
676 X_UNLOCK (wrklock);
677 goto quit;
678 }
679
680 /* we are allowed to idle, so do so without any timeout */
681 X_COND_WAIT (reqwait, reqlock);
682 ts.tv_sec = time (0) + IDLE_TIMEOUT;
683 }
684
685 --idle;
686 }
687
688 --nready;
689
690 X_UNLOCK (reqlock);
691
692 switch (req->type)
693 {
694 case REQ_QUIT:
695 req->result = ENOSYS;
696 goto quit;
697
698 case REQ_ENV_OPEN:
699 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
700 break;
701
702 case REQ_ENV_CLOSE:
703 req->result = req->env->close (req->env, req->uint1);
704 break;
705
706 case REQ_ENV_TXN_CHECKPOINT:
707 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
708 break;
709
710 case REQ_ENV_LOCK_DETECT:
711 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
712 break;
713
714 case REQ_ENV_MEMP_SYNC:
715 req->result = req->env->memp_sync (req->env, 0);
716 break;
717
718 case REQ_ENV_MEMP_TRICKLE:
719 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
720 break;
721
722 case REQ_DB_OPEN:
723 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
724 break;
725
726 case REQ_DB_CLOSE:
727 req->result = req->db->close (req->db, req->uint1);
728 break;
729
730 case REQ_DB_COMPACT:
731 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
732 break;
733
734 case REQ_DB_SYNC:
735 req->result = req->db->sync (req->db, req->uint1);
736 break;
737
738 case REQ_DB_PUT:
739 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
740 break;
741
742 case REQ_DB_GET:
743 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
744 break;
745
746 case REQ_DB_PGET:
747 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
748 break;
749
750 case REQ_DB_DEL:
751 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
752 break;
753
754 case REQ_DB_KEY_RANGE:
755 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
756 break;
757
758 case REQ_TXN_COMMIT:
759 req->result = req->txn->commit (req->txn, req->uint1);
760 break;
761
762 case REQ_TXN_ABORT:
763 req->result = req->txn->abort (req->txn);
764 break;
765
766 case REQ_TXN_FINISH:
767 if (req->txn->flags & TXN_DEADLOCK)
768 {
769 req->result = req->txn->abort (req->txn);
770 if (!req->result)
771 req->result = DB_LOCK_DEADLOCK;
772 }
773 else
774 req->result = req->txn->commit (req->txn, req->uint1);
775 break;
776
777 case REQ_C_CLOSE:
778 req->result = req->dbc->c_close (req->dbc);
779 break;
780
781 case REQ_C_COUNT:
782 {
783 db_recno_t recno;
784 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
785 req->uv1 = recno;
786 }
787 break;
788
789 case REQ_C_PUT:
790 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
791 break;
792
793 case REQ_C_GET:
794 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
795 break;
796
797 case REQ_C_PGET:
798 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
799 break;
800
801 case REQ_C_DEL:
802 req->result = req->dbc->c_del (req->dbc, req->uint1);
803 break;
804
805 case REQ_SEQ_OPEN:
806 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
807 break;
808
809 case REQ_SEQ_CLOSE:
810 req->result = req->seq->close (req->seq, req->uint1);
811 break;
812
813 case REQ_SEQ_GET:
814 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
815 break;
816
817 case REQ_SEQ_REMOVE:
818 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
819 break;
820
821 default:
822 req->result = ENOSYS;
823 break;
824 }
825
826 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
827 req->txn->flags |= TXN_DEADLOCK;
828
829 X_LOCK (reslock);
830
831 ++npending;
832
833 if (!reqq_push (&res_queue, req))
834 /* write a dummy byte to the pipe so fh becomes ready */
835 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
836
837 self->req = 0;
838 worker_clear (self);
839
840 X_UNLOCK (reslock);
841 }
842
843 quit:
844 X_LOCK (wrklock);
845 worker_free (self);
846 X_UNLOCK (wrklock);
847
848 return 0;
849 }
850
851 /*****************************************************************************/
852
853 static void atfork_prepare (void)
854 {
855 X_LOCK (wrklock);
856 X_LOCK (reqlock);
857 X_LOCK (reslock);
858 }
859
860 static void atfork_parent (void)
861 {
862 X_UNLOCK (reslock);
863 X_UNLOCK (reqlock);
864 X_UNLOCK (wrklock);
865 }
866
867 static void atfork_child (void)
868 {
869 aio_req prv;
870
871 while (prv = reqq_shift (&req_queue))
872 req_free (prv);
873
874 while (prv = reqq_shift (&res_queue))
875 req_free (prv);
876
877 while (wrk_first.next != &wrk_first)
878 {
879 worker *wrk = wrk_first.next;
880
881 if (wrk->req)
882 req_free (wrk->req);
883
884 worker_clear (wrk);
885 worker_free (wrk);
886 }
887
888 started = 0;
889 idle = 0;
890 nreqs = 0;
891 nready = 0;
892 npending = 0;
893
894 create_respipe ();
895
896 atfork_parent ();
897 }
898
899 #define dREQ(reqtype) \
900 aio_req req; \
901 int req_pri = next_pri; \
902 next_pri = DEFAULT_PRI + PRI_BIAS; \
903 \
904 if (SvOK (callback) && !SvROK (callback)) \
905 croak ("callback must be undef or of reference type"); \
906 \
907 Newz (0, req, 1, aio_cb); \
908 if (!req) \
909 croak ("out of memory during aio_req allocation"); \
910 \
911 req->callback = newSVsv (callback); \
912 req->type = (reqtype); \
913 req->pri = req_pri
914
915 #define REQ_SEND \
916 req_send (req)
917
918 #define SvPTR(var, arg, type, class, nullok) \
919 if (!SvOK (arg)) \
920 { \
921 if (!nullok) \
922 croak (# var " must be a " # class " object, not undef"); \
923 \
924 (var) = 0; \
925 } \
926 else if (sv_derived_from ((arg), # class)) \
927 { \
928 IV tmp = SvIV ((SV*) SvRV (arg)); \
929 (var) = INT2PTR (type, tmp); \
930 if (!var) \
931 croak (# var " is not a valid " # class " object anymore"); \
932 } \
933 else \
934 croak (# var " is not of type " # class); \
935 \
936
937 static void
938 ptr_nuke (SV *sv)
939 {
940 assert (SvROK (sv));
941 sv_setiv (SvRV (sv), 0);
942 }
943
944 MODULE = BDB PACKAGE = BDB
945
946 PROTOTYPES: ENABLE
947
948 BOOT:
949 {
950 HV *stash = gv_stashpv ("BDB", 1);
951
952 static const struct {
953 const char *name;
954 IV iv;
955 } *civ, const_iv[] = {
956 #define const_iv(name) { # name, (IV)DB_ ## name },
957 const_iv (RPCCLIENT)
958 const_iv (INIT_CDB)
959 const_iv (INIT_LOCK)
960 const_iv (INIT_LOG)
961 const_iv (INIT_MPOOL)
962 const_iv (INIT_REP)
963 const_iv (INIT_TXN)
964 const_iv (RECOVER)
965 const_iv (INIT_TXN)
966 const_iv (RECOVER_FATAL)
967 const_iv (CREATE)
968 const_iv (RDONLY)
969 const_iv (USE_ENVIRON)
970 const_iv (USE_ENVIRON_ROOT)
971 const_iv (LOCKDOWN)
972 const_iv (PRIVATE)
973 const_iv (REGISTER)
974 const_iv (SYSTEM_MEM)
975 const_iv (AUTO_COMMIT)
976 const_iv (CDB_ALLDB)
977 const_iv (DIRECT_DB)
978 const_iv (DIRECT_LOG)
979 const_iv (DSYNC_DB)
980 const_iv (DSYNC_LOG)
981 const_iv (LOG_AUTOREMOVE)
982 const_iv (LOG_INMEMORY)
983 const_iv (NOLOCKING)
984 const_iv (NOMMAP)
985 const_iv (NOPANIC)
986 const_iv (OVERWRITE)
987 const_iv (PANIC_ENVIRONMENT)
988 const_iv (REGION_INIT)
989 const_iv (TIME_NOTGRANTED)
990 const_iv (TXN_NOSYNC)
991 const_iv (TXN_NOT_DURABLE)
992 const_iv (TXN_WRITE_NOSYNC)
993 const_iv (WRITECURSOR)
994 const_iv (YIELDCPU)
995 const_iv (ENCRYPT_AES)
996 const_iv (XA_CREATE)
997 const_iv (BTREE)
998 const_iv (HASH)
999 const_iv (QUEUE)
1000 const_iv (RECNO)
1001 const_iv (UNKNOWN)
1002 const_iv (EXCL)
1003 const_iv (READ_COMMITTED)
1004 const_iv (READ_UNCOMMITTED)
1005 const_iv (TRUNCATE)
1006 const_iv (NOSYNC)
1007 const_iv (CHKSUM)
1008 const_iv (ENCRYPT)
1009 const_iv (DUP)
1010 const_iv (DUPSORT)
1011 const_iv (RECNUM)
1012 const_iv (RENUMBER)
1013 const_iv (REVSPLITOFF)
1014 const_iv (INORDER)
1015 const_iv (CONSUME)
1016 const_iv (CONSUME_WAIT)
1017 const_iv (GET_BOTH)
1018 const_iv (GET_BOTH_RANGE)
1019 //const_iv (SET_RECNO)
1020 //const_iv (MULTIPLE)
1021 const_iv (SNAPSHOT)
1022 const_iv (JOIN_ITEM)
1023 const_iv (RMW)
1024
1025 const_iv (NOTFOUND)
1026 const_iv (KEYEMPTY)
1027 const_iv (LOCK_DEADLOCK)
1028 const_iv (LOCK_NOTGRANTED)
1029 const_iv (RUNRECOVERY)
1030 const_iv (OLD_VERSION)
1031 const_iv (REP_HANDLE_DEAD)
1032 const_iv (REP_LOCKOUT)
1033 const_iv (SECONDARY_BAD)
1034
1035 const_iv (FREE_SPACE)
1036 const_iv (FREELIST_ONLY)
1037
1038 const_iv (APPEND)
1039 const_iv (NODUPDATA)
1040 const_iv (NOOVERWRITE)
1041
1042 const_iv (TXN_NOWAIT)
1043 const_iv (TXN_SYNC)
1044
1045 const_iv (SET_LOCK_TIMEOUT)
1046 const_iv (SET_TXN_TIMEOUT)
1047
1048 const_iv (JOIN_ITEM)
1049 const_iv (FIRST)
1050 const_iv (NEXT)
1051 const_iv (NEXT_DUP)
1052 const_iv (NEXT_NODUP)
1053 const_iv (PREV)
1054 const_iv (PREV_NODUP)
1055 const_iv (SET)
1056 const_iv (SET_RANGE)
1057 const_iv (LAST)
1058 const_iv (BEFORE)
1059 const_iv (AFTER)
1060 const_iv (CURRENT)
1061 const_iv (KEYFIRST)
1062 const_iv (KEYLAST)
1063 const_iv (NODUPDATA)
1064
1065 const_iv (FORCE)
1066
1067 const_iv (LOCK_DEFAULT)
1068 const_iv (LOCK_EXPIRE)
1069 const_iv (LOCK_MAXLOCKS)
1070 const_iv (LOCK_MAXWRITE)
1071 const_iv (LOCK_MINLOCKS)
1072 const_iv (LOCK_MINWRITE)
1073 const_iv (LOCK_OLDEST)
1074 const_iv (LOCK_RANDOM)
1075 const_iv (LOCK_YOUNGEST)
1076
1077 const_iv (SEQ_DEC)
1078 const_iv (SEQ_INC)
1079 const_iv (SEQ_WRAP)
1080
1081 const_iv (BUFFER_SMALL)
1082 const_iv (DONOTINDEX)
1083 const_iv (KEYEMPTY )
1084 const_iv (KEYEXIST )
1085 const_iv (LOCK_DEADLOCK)
1086 const_iv (LOCK_NOTGRANTED)
1087 const_iv (LOG_BUFFER_FULL)
1088 const_iv (NOSERVER)
1089 const_iv (NOSERVER_HOME)
1090 const_iv (NOSERVER_ID)
1091 const_iv (NOTFOUND)
1092 const_iv (OLD_VERSION)
1093 const_iv (PAGE_NOTFOUND)
1094 const_iv (REP_DUPMASTER)
1095 const_iv (REP_HANDLE_DEAD)
1096 const_iv (REP_HOLDELECTION)
1097 const_iv (REP_IGNORE)
1098 const_iv (REP_ISPERM)
1099 const_iv (REP_JOIN_FAILURE)
1100 const_iv (REP_LOCKOUT)
1101 const_iv (REP_NEWMASTER)
1102 const_iv (REP_NEWSITE)
1103 const_iv (REP_NOTPERM)
1104 const_iv (REP_UNAVAIL)
1105 const_iv (RUNRECOVERY)
1106 const_iv (SECONDARY_BAD)
1107 const_iv (VERIFY_BAD)
1108 const_iv (VERSION_MISMATCH)
1109
1110 const_iv (VERB_DEADLOCK)
1111 const_iv (VERB_RECOVERY)
1112 const_iv (VERB_REGISTER)
1113 const_iv (VERB_REPLICATION)
1114 const_iv (VERB_WAITSFOR)
1115
1116 const_iv (VERSION_MAJOR)
1117 const_iv (VERSION_MINOR)
1118 const_iv (VERSION_PATCH)
1119 #if DB_VERSION_MINOR >= 5
1120 const_iv (MULTIVERSION)
1121 const_iv (TXN_SNAPSHOT)
1122 #endif
1123 #if DB_VERSION_MINOR >= 6
1124 const_iv (PREV_DUP)
1125 # if 0
1126 const_iv (PRIORITY_UNCHANGED)
1127 const_iv (PRIORITY_VERY_LOW)
1128 const_iv (PRIORITY_LOW)
1129 const_iv (PRIORITY_DEFAULT)
1130 const_iv (PRIORITY_HIGH)
1131 const_iv (PRIORITY_VERY_HIGH)
1132 # endif
1133 #endif
1134 };
1135
1136 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1137 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1138
1139 newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
1140 newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1141
1142 create_respipe ();
1143
1144 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1145 #ifdef _WIN32
1146 X_MUTEX_CHECK (wrklock);
1147 X_MUTEX_CHECK (reslock);
1148 X_MUTEX_CHECK (reqlock);
1149
1150 X_COND_CHECK (reqwait);
1151 #endif
1152 }
1153
1154 void
1155 max_poll_reqs (int nreqs)
1156 PROTOTYPE: $
1157 CODE:
1158 max_poll_reqs = nreqs;
1159
1160 void
1161 max_poll_time (double nseconds)
1162 PROTOTYPE: $
1163 CODE:
1164 max_poll_time = nseconds * AIO_TICKS;
1165
1166 void
1167 min_parallel (int nthreads)
1168 PROTOTYPE: $
1169
1170 void
1171 max_parallel (int nthreads)
1172 PROTOTYPE: $
1173
1174 void
1175 max_idle (int nthreads)
1176 PROTOTYPE: $
1177 CODE:
1178 set_max_idle (nthreads);
1179
1180 int
1181 max_outstanding (int maxreqs)
1182 PROTOTYPE: $
1183 CODE:
1184 RETVAL = max_outstanding;
1185 max_outstanding = maxreqs;
1186 OUTPUT:
1187 RETVAL
1188
1189 int
1190 dbreq_pri (int pri = 0)
1191 PROTOTYPE: ;$
1192 CODE:
1193 RETVAL = next_pri - PRI_BIAS;
1194 if (items > 0)
1195 {
1196 if (pri < PRI_MIN) pri = PRI_MIN;
1197 if (pri > PRI_MAX) pri = PRI_MAX;
1198 next_pri = pri + PRI_BIAS;
1199 }
1200 OUTPUT:
1201 RETVAL
1202
1203 void
1204 dbreq_nice (int nice = 0)
1205 CODE:
1206 nice = next_pri - nice;
1207 if (nice < PRI_MIN) nice = PRI_MIN;
1208 if (nice > PRI_MAX) nice = PRI_MAX;
1209 next_pri = nice + PRI_BIAS;
1210
1211 void
1212 flush ()
1213 PROTOTYPE:
1214 CODE:
1215 while (nreqs)
1216 {
1217 poll_wait ();
1218 poll_cb ();
1219 }
1220
1221 int
1222 poll ()
1223 PROTOTYPE:
1224 CODE:
1225 poll_wait ();
1226 RETVAL = poll_cb ();
1227 OUTPUT:
1228 RETVAL
1229
1230 int
1231 poll_fileno ()
1232 PROTOTYPE:
1233 CODE:
1234 RETVAL = respipe [0];
1235 OUTPUT:
1236 RETVAL
1237
1238 int
1239 poll_cb (...)
1240 PROTOTYPE:
1241 CODE:
1242 RETVAL = poll_cb ();
1243 OUTPUT:
1244 RETVAL
1245
1246 void
1247 poll_wait ()
1248 PROTOTYPE:
1249 CODE:
1250 poll_wait ();
1251
1252 int
1253 nreqs ()
1254 PROTOTYPE:
1255 CODE:
1256 RETVAL = nreqs;
1257 OUTPUT:
1258 RETVAL
1259
1260 int
1261 nready ()
1262 PROTOTYPE:
1263 CODE:
1264 RETVAL = get_nready ();
1265 OUTPUT:
1266 RETVAL
1267
1268 int
1269 npending ()
1270 PROTOTYPE:
1271 CODE:
1272 RETVAL = get_npending ();
1273 OUTPUT:
1274 RETVAL
1275
1276 int
1277 nthreads ()
1278 PROTOTYPE:
1279 CODE:
1280 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1281 RETVAL = started;
1282 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1283 OUTPUT:
1284 RETVAL
1285
1286 void
1287 set_sync_prepare (SV *cb)
1288 PROTOTYPE: &
1289 CODE:
1290 SvREFCNT_dec (prepare_cb);
1291 prepare_cb = newSVsv (cb);
1292
1293 char *
1294 strerror (int errorno = errno)
1295 PROTOTYPE: ;$
1296 CODE:
1297 RETVAL = db_strerror (errorno);
1298 OUTPUT:
1299 RETVAL
1300
1301 DB_ENV *
1302 db_env_create (U32 env_flags = 0)
1303 CODE:
1304 {
1305 errno = db_env_create (&RETVAL, env_flags);
1306 if (errno)
1307 croak ("db_env_create: %s", db_strerror (errno));
1308
1309 if (0)
1310 {
1311 RETVAL->set_errcall (RETVAL, debug_errcall);
1312 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1313 }
1314 }
1315 OUTPUT:
1316 RETVAL
1317
1318 void
1319 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1320 CODE:
1321 {
1322 dREQ (REQ_ENV_OPEN);
1323
1324 env->set_thread_count (env, wanted + 2);
1325
1326 req->env = env;
1327 req->uint1 = open_flags | DB_THREAD;
1328 req->int1 = mode;
1329 req->buf1 = strdup_ornull (db_home);
1330 REQ_SEND;
1331 }
1332
1333 void
1334 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
1335 CODE:
1336 {
1337 dREQ (REQ_ENV_CLOSE);
1338 req->env = env;
1339 req->uint1 = flags;
1340 REQ_SEND;
1341 ptr_nuke (ST (0));
1342 }
1343
1344 void
1345 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1346 CODE:
1347 {
1348 dREQ (REQ_ENV_TXN_CHECKPOINT);
1349 req->env = env;
1350 req->uint1 = kbyte;
1351 req->int1 = min;
1352 req->uint2 = flags;
1353 REQ_SEND;
1354 }
1355
1356 void
1357 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
1358 CODE:
1359 {
1360 dREQ (REQ_ENV_LOCK_DETECT);
1361 req->env = env;
1362 req->uint1 = flags;
1363 req->uint2 = atype;
1364 REQ_SEND;
1365 }
1366
1367 void
1368 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
1369 CODE:
1370 {
1371 dREQ (REQ_ENV_MEMP_SYNC);
1372 req->env = env;
1373 REQ_SEND;
1374 }
1375
1376 void
1377 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
1378 CODE:
1379 {
1380 dREQ (REQ_ENV_MEMP_TRICKLE);
1381 req->env = env;
1382 req->int1 = percent;
1383 REQ_SEND;
1384 }
1385
1386
1387 DB *
1388 db_create (DB_ENV *env = 0, U32 flags = 0)
1389 CODE:
1390 {
1391 errno = db_create (&RETVAL, env, flags);
1392 if (errno)
1393 croak ("db_create: %s", db_strerror (errno));
1394
1395 if (RETVAL)
1396 RETVAL->app_private = (void *)newSVsv (ST (0));
1397 }
1398 OUTPUT:
1399 RETVAL
1400
1401 void
1402 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
1403 CODE:
1404 {
1405 dREQ (REQ_DB_OPEN);
1406 req->db = db;
1407 req->txn = txnid;
1408 req->buf1 = strdup_ornull (file);
1409 req->buf2 = strdup_ornull (database);
1410 req->int1 = type;
1411 req->uint1 = flags | DB_THREAD;
1412 req->int2 = mode;
1413 REQ_SEND;
1414 }
1415
1416 void
1417 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1418 CODE:
1419 {
1420 dREQ (REQ_DB_CLOSE);
1421 req->db = db;
1422 req->uint1 = flags;
1423 req->sv1 = (SV *)db->app_private;
1424 REQ_SEND;
1425 ptr_nuke (ST (0));
1426 }
1427
1428 void
1429 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)
1430 CODE:
1431 {
1432 dREQ (REQ_DB_COMPACT);
1433 req->db = db;
1434 req->txn = txn;
1435 sv_to_dbt (&req->dbt1, start);
1436 sv_to_dbt (&req->dbt2, stop);
1437 req->uint1 = flags;
1438 REQ_SEND;
1439 }
1440
1441 void
1442 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
1443 CODE:
1444 {
1445 dREQ (REQ_DB_SYNC);
1446 req->db = db;
1447 req->uint1 = flags;
1448 REQ_SEND;
1449 }
1450
1451 void
1452 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
1453 CODE:
1454 {
1455 dREQ (REQ_DB_KEY_RANGE);
1456 req->db = db;
1457 req->txn = txn;
1458 sv_to_dbt (&req->dbt1, key);
1459 req->uint1 = flags;
1460 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1461 REQ_SEND;
1462 }
1463
1464 void
1465 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1466 CODE:
1467 {
1468 dREQ (REQ_DB_PUT);
1469 req->db = db;
1470 req->txn = txn;
1471 sv_to_dbt (&req->dbt1, key);
1472 sv_to_dbt (&req->dbt2, data);
1473 req->uint1 = flags;
1474 REQ_SEND;
1475 }
1476
1477 void
1478 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1479 CODE:
1480 {
1481 dREQ (REQ_DB_GET);
1482 req->db = db;
1483 req->txn = txn;
1484 req->uint1 = flags;
1485 sv_to_dbt (&req->dbt1, key);
1486 req->dbt3.flags = DB_DBT_MALLOC;
1487 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1488 REQ_SEND;
1489 }
1490
1491 void
1492 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1493 CODE:
1494 {
1495 dREQ (REQ_DB_PGET);
1496 req->db = db;
1497 req->txn = txn;
1498 req->uint1 = flags;
1499 sv_to_dbt (&req->dbt1, key);
1500 sv_to_dbt (&req->dbt2, pkey);
1501 req->dbt3.flags = DB_DBT_MALLOC;
1502 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1503 REQ_SEND;
1504 }
1505
1506 void
1507 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1508 CODE:
1509 {
1510 dREQ (REQ_DB_DEL);
1511 req->db = db;
1512 req->txn = txn;
1513 req->uint1 = flags;
1514 sv_to_dbt (&req->dbt1, key);
1515 REQ_SEND;
1516 }
1517
1518 void
1519 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1520 CODE:
1521 {
1522 dREQ (REQ_TXN_COMMIT);
1523 req->txn = txn;
1524 req->uint1 = flags;
1525 REQ_SEND;
1526 ptr_nuke (ST (0));
1527 }
1528
1529 void
1530 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
1531 CODE:
1532 {
1533 dREQ (REQ_TXN_ABORT);
1534 req->txn = txn;
1535 REQ_SEND;
1536 ptr_nuke (ST (0));
1537 }
1538
1539 void
1540 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1541 CODE:
1542 {
1543 dREQ (REQ_TXN_FINISH);
1544 req->txn = txn;
1545 req->uint1 = flags;
1546 REQ_SEND;
1547 ptr_nuke (ST (0));
1548 }
1549
1550 void
1551 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1552 CODE:
1553 {
1554 dREQ (REQ_C_CLOSE);
1555 req->dbc = dbc;
1556 REQ_SEND;
1557 ptr_nuke (ST (0));
1558 }
1559
1560 void
1561 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
1562 CODE:
1563 {
1564 dREQ (REQ_C_COUNT);
1565 req->dbc = dbc;
1566 req->sv1 = SvREFCNT_inc (count);
1567 REQ_SEND;
1568 }
1569
1570 void
1571 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1572 CODE:
1573 {
1574 dREQ (REQ_C_PUT);
1575 req->dbc = dbc;
1576 sv_to_dbt (&req->dbt1, key);
1577 sv_to_dbt (&req->dbt2, data);
1578 req->uint1 = flags;
1579 REQ_SEND;
1580 }
1581
1582 void
1583 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1584 CODE:
1585 {
1586 dREQ (REQ_C_GET);
1587 req->dbc = dbc;
1588 req->uint1 = flags;
1589 if ((flags & DB_SET) == DB_SET
1590 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1591 sv_to_dbt (&req->dbt1, key);
1592 else
1593 req->dbt1.flags = DB_DBT_MALLOC;
1594
1595 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1596
1597 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1598 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1599 sv_to_dbt (&req->dbt3, data);
1600 else
1601 req->dbt3.flags = DB_DBT_MALLOC;
1602
1603 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1604 REQ_SEND;
1605 }
1606
1607 void
1608 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1609 CODE:
1610 {
1611 dREQ (REQ_C_PGET);
1612 req->dbc = dbc;
1613 req->uint1 = flags;
1614 if ((flags & DB_SET) == DB_SET
1615 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1616 sv_to_dbt (&req->dbt1, key);
1617 else
1618 req->dbt1.flags = DB_DBT_MALLOC;
1619
1620 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1621
1622 req->dbt2.flags = DB_DBT_MALLOC;
1623 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1624
1625 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1626 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1627 sv_to_dbt (&req->dbt3, data);
1628 else
1629 req->dbt3.flags = DB_DBT_MALLOC;
1630
1631 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1632 REQ_SEND;
1633 }
1634
1635 void
1636 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
1637 CODE:
1638 {
1639 dREQ (REQ_C_DEL);
1640 req->dbc = dbc;
1641 req->uint1 = flags;
1642 REQ_SEND;
1643 }
1644
1645
1646 void
1647 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
1648 CODE:
1649 {
1650 dREQ (REQ_SEQ_OPEN);
1651 req->seq = seq;
1652 req->txn = txnid;
1653 req->uint1 = flags | DB_THREAD;
1654 sv_to_dbt (&req->dbt1, key);
1655 REQ_SEND;
1656 }
1657
1658 void
1659 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
1660 CODE:
1661 {
1662 dREQ (REQ_SEQ_CLOSE);
1663 req->seq = seq;
1664 req->uint1 = flags;
1665 REQ_SEND;
1666 ptr_nuke (ST (0));
1667 }
1668
1669 void
1670 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)
1671 CODE:
1672 {
1673 dREQ (REQ_SEQ_GET);
1674 req->seq = seq;
1675 req->txn = txnid;
1676 req->int1 = delta;
1677 req->uint1 = flags;
1678 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1679 REQ_SEND;
1680 }
1681
1682 void
1683 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
1684 CODE:
1685 {
1686 dREQ (REQ_SEQ_REMOVE);
1687 req->seq = seq;
1688 req->txn = txnid;
1689 req->uint1 = flags;
1690 REQ_SEND;
1691 }
1692
1693
1694 MODULE = BDB PACKAGE = BDB::Env
1695
1696 void
1697 DESTROY (DB_ENV_ornull *env)
1698 CODE:
1699 if (env)
1700 env->close (env, 0);
1701
1702 int set_data_dir (DB_ENV *env, const char *dir)
1703 CODE:
1704 RETVAL = env->set_data_dir (env, dir);
1705 OUTPUT:
1706 RETVAL
1707
1708 int set_tmp_dir (DB_ENV *env, const char *dir)
1709 CODE:
1710 RETVAL = env->set_tmp_dir (env, dir);
1711 OUTPUT:
1712 RETVAL
1713
1714 int set_lg_dir (DB_ENV *env, const char *dir)
1715 CODE:
1716 RETVAL = env->set_lg_dir (env, dir);
1717 OUTPUT:
1718 RETVAL
1719
1720 int set_shm_key (DB_ENV *env, long shm_key)
1721 CODE:
1722 RETVAL = env->set_shm_key (env, shm_key);
1723 OUTPUT:
1724 RETVAL
1725
1726 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1727 CODE:
1728 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1729 OUTPUT:
1730 RETVAL
1731
1732 int set_flags (DB_ENV *env, U32 flags, int onoff)
1733 CODE:
1734 RETVAL = env->set_flags (env, flags, onoff);
1735 OUTPUT:
1736 RETVAL
1737
1738 void set_errfile (DB_ENV *env, FILE *errfile = 0)
1739 CODE:
1740 env->set_errfile (env, errfile);
1741
1742 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
1743 CODE:
1744 env->set_msgfile (env, msgfile);
1745
1746 int set_verbose (DB_ENV *env, U32 which, int onoff = 1)
1747 CODE:
1748 RETVAL = env->set_verbose (env, which, onoff);
1749 OUTPUT:
1750 RETVAL
1751
1752 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1753 CODE:
1754 RETVAL = env->set_encrypt (env, password, flags);
1755 OUTPUT:
1756 RETVAL
1757
1758 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1759 CODE:
1760 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1761 OUTPUT:
1762 RETVAL
1763
1764 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
1765 CODE:
1766 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
1767 OUTPUT:
1768 RETVAL
1769
1770 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
1771 CODE:
1772 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
1773 OUTPUT:
1774 RETVAL
1775
1776 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
1777 CODE:
1778 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
1779 OUTPUT:
1780 RETVAL
1781
1782 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
1783 CODE:
1784 RETVAL = env->set_lk_detect (env, detect);
1785 OUTPUT:
1786 RETVAL
1787
1788 int set_lk_max_lockers (DB_ENV *env, U32 max)
1789 CODE:
1790 RETVAL = env->set_lk_max_lockers (env, max);
1791 OUTPUT:
1792 RETVAL
1793
1794 int set_lk_max_locks (DB_ENV *env, U32 max)
1795 CODE:
1796 RETVAL = env->set_lk_max_locks (env, max);
1797 OUTPUT:
1798 RETVAL
1799
1800 int set_lk_max_objects (DB_ENV *env, U32 max)
1801 CODE:
1802 RETVAL = env->set_lk_max_objects (env, max);
1803 OUTPUT:
1804 RETVAL
1805
1806 int set_lg_bsize (DB_ENV *env, U32 max)
1807 CODE:
1808 RETVAL = env->set_lg_bsize (env, max);
1809 OUTPUT:
1810 RETVAL
1811
1812 int set_lg_max (DB_ENV *env, U32 max)
1813 CODE:
1814 RETVAL = env->set_lg_max (env, max);
1815 OUTPUT:
1816 RETVAL
1817
1818 DB_TXN *
1819 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1820 CODE:
1821 errno = env->txn_begin (env, parent, &RETVAL, flags);
1822 if (errno)
1823 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
1824 OUTPUT:
1825 RETVAL
1826
1827 MODULE = BDB PACKAGE = BDB::Db
1828
1829 void
1830 DESTROY (DB_ornull *db)
1831 CODE:
1832 if (db)
1833 {
1834 SV *env = (SV *)db->app_private;
1835 db->close (db, 0);
1836 SvREFCNT_dec (env);
1837 }
1838
1839 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1840 CODE:
1841 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1842 OUTPUT:
1843 RETVAL
1844
1845 int set_flags (DB *db, U32 flags)
1846 CODE:
1847 RETVAL = db->set_flags (db, flags);
1848 OUTPUT:
1849 RETVAL
1850
1851 int set_encrypt (DB *db, const char *password, U32 flags)
1852 CODE:
1853 RETVAL = db->set_encrypt (db, password, flags);
1854 OUTPUT:
1855 RETVAL
1856
1857 int set_lorder (DB *db, int lorder)
1858 CODE:
1859 RETVAL = db->set_lorder (db, lorder);
1860 OUTPUT:
1861 RETVAL
1862
1863 int set_bt_minkey (DB *db, U32 minkey)
1864 CODE:
1865 RETVAL = db->set_bt_minkey (db, minkey);
1866 OUTPUT:
1867 RETVAL
1868
1869 int set_re_delim (DB *db, int delim)
1870 CODE:
1871 RETVAL = db->set_re_delim (db, delim);
1872 OUTPUT:
1873 RETVAL
1874
1875 int set_re_pad (DB *db, int re_pad)
1876 CODE:
1877 RETVAL = db->set_re_pad (db, re_pad);
1878 OUTPUT:
1879 RETVAL
1880
1881 int set_re_source (DB *db, char *source)
1882 CODE:
1883 RETVAL = db->set_re_source (db, source);
1884 OUTPUT:
1885 RETVAL
1886
1887 int set_re_len (DB *db, U32 re_len)
1888 CODE:
1889 RETVAL = db->set_re_len (db, re_len);
1890 OUTPUT:
1891 RETVAL
1892
1893 int set_h_ffactor (DB *db, U32 h_ffactor)
1894 CODE:
1895 RETVAL = db->set_h_ffactor (db, h_ffactor);
1896 OUTPUT:
1897 RETVAL
1898
1899 int set_h_nelem (DB *db, U32 h_nelem)
1900 CODE:
1901 RETVAL = db->set_h_nelem (db, h_nelem);
1902 OUTPUT:
1903 RETVAL
1904
1905 int set_q_extentsize (DB *db, U32 extentsize)
1906 CODE:
1907 RETVAL = db->set_q_extentsize (db, extentsize);
1908 OUTPUT:
1909 RETVAL
1910
1911 DBC *
1912 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
1913 CODE:
1914 errno = db->cursor (db, txn, &RETVAL, flags);
1915 if (errno)
1916 croak ("DB->cursor: %s", db_strerror (errno));
1917 OUTPUT:
1918 RETVAL
1919
1920 DB_SEQUENCE *
1921 sequence (DB *db, U32 flags = 0)
1922 CODE:
1923 {
1924 errno = db_sequence_create (&RETVAL, db, flags);
1925 if (errno)
1926 croak ("db_sequence_create: %s", db_strerror (errno));
1927 }
1928 OUTPUT:
1929 RETVAL
1930
1931
1932 MODULE = BDB PACKAGE = BDB::Txn
1933
1934 void
1935 DESTROY (DB_TXN_ornull *txn)
1936 CODE:
1937 if (txn)
1938 txn->abort (txn);
1939
1940 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1941 CODE:
1942 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1943 OUTPUT:
1944 RETVAL
1945
1946 int failed (DB_TXN *txn)
1947 CODE:
1948 RETVAL = !!(txn->flags & TXN_DEADLOCK);
1949 OUTPUT:
1950 RETVAL
1951
1952
1953 MODULE = BDB PACKAGE = BDB::Cursor
1954
1955 void
1956 DESTROY (DBC_ornull *dbc)
1957 CODE:
1958 if (dbc)
1959 dbc->c_close (dbc);
1960
1961 MODULE = BDB PACKAGE = BDB::Sequence
1962
1963 void
1964 DESTROY (DB_SEQUENCE_ornull *seq)
1965 CODE:
1966 if (seq)
1967 seq->close (seq, 0);
1968
1969 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
1970 CODE:
1971 RETVAL = seq->initial_value (seq, value);
1972 OUTPUT:
1973 RETVAL
1974
1975 int set_cachesize (DB_SEQUENCE *seq, U32 size)
1976 CODE:
1977 RETVAL = seq->set_cachesize (seq, size);
1978 OUTPUT:
1979 RETVAL
1980
1981 int set_flags (DB_SEQUENCE *seq, U32 flags)
1982 CODE:
1983 RETVAL = seq->set_flags (seq, flags);
1984 OUTPUT:
1985 RETVAL
1986
1987 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
1988 CODE:
1989 RETVAL = seq->set_range (seq, min, max);
1990 OUTPUT:
1991 RETVAL
1992