ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/BDB/BDB.xs
Revision: 1.63
Committed: Tue Oct 21 02:21:25 2008 UTC (15 years, 7 months ago) by root
Branch: MAIN
CVS Tags: rel-1_81
Changes since 1.62: +49 -1 lines
Log Message:
1.81

File Contents

# Content
1 #define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2
3 #include "xthread.h"
4
5 #include <errno.h>
6
7 #include "EXTERN.h"
8 #include "perl.h"
9 #include "XSUB.h"
10
11 // perl stupidly defines these as macros, breaking
12 // lots and lots of code.
13 #undef open
14 #undef close
15 #undef abort
16 #undef malloc
17 #undef free
18 #undef send
19
20 #include <stddef.h>
21 #include <stdlib.h>
22 #include <errno.h>
23 #include <sys/types.h>
24 #include <limits.h>
25 #include <fcntl.h>
26
27 #ifndef _WIN32
28 # include <sys/time.h>
29 # include <unistd.h>
30 #endif
31
32 #include <db.h>
33
34 #if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
35 # error you need Berkeley DB 4.3 or a newer 4.x version installed
36 #endif
37
38 /* number of seconds after which idle threads exit */
39 #define IDLE_TIMEOUT 10
40
41 typedef SV SV_mutable;
42
43 typedef DB_ENV DB_ENV_ornull;
44 typedef DB_TXN DB_TXN_ornull;
45 typedef DBC DBC_ornull;
46 typedef DB DB_ornull;
47
48 typedef DB_ENV DB_ENV_ornuked;
49 typedef DB_TXN DB_TXN_ornuked;
50 typedef DBC DBC_ornuked;
51 typedef DB DB_ornuked;
52
53 #if DB_VERSION_MINOR >= 3
54 typedef DB_SEQUENCE DB_SEQUENCE_ornull;
55 typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
56 #endif
57
58 typedef char *bdb_filename;
59
60 static SV *prepare_cb;
61
62 #if DB_VERSION_MINOR >= 6
63 # define c_close close
64 # define c_count count
65 # define c_del del
66 # define c_dup dup
67 # define c_get get
68 # define c_pget pget
69 # define c_put put
70 #endif
71
72 static char *
73 get_bdb_filename (SV *sv)
74 {
75 if (!SvOK (sv))
76 return 0;
77
78 #if _WIN32
79 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
80 {
81 STRLEN len;
82 char *src = SvPVbyte (sv, len);
83 SV *t1 = sv_newmortal ();
84 SV *t2 = sv_newmortal ();
85
86 sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
87 sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
88
89 len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
90 len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
91 SvPOK_only (t2);
92 SvPVX (t2)[len] = 0;
93 SvCUR_set (t2, len);
94
95 return SvPVX (t2);
96 }
97 #else
98 return SvPVbyte_nolen (sv);
99 #endif
100 }
101
102 static void
103 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
104 {
105 printf ("err[%s]\n", msg);
106 }
107
108 static void
109 debug_msgcall (const DB_ENV *dbenv, const char *msg)
110 {
111 printf ("msg[%s]\n", msg);
112 }
113
114 static char *
115 strdup_ornull (const char *s)
116 {
117 return s ? strdup (s) : 0;
118 }
119
120 static void
121 sv_to_dbt (DBT *dbt, SV *sv)
122 {
123 STRLEN len;
124 char *data = SvPVbyte (sv, len);
125
126 dbt->data = malloc (len);
127 memcpy (dbt->data, data, len);
128 dbt->size = len;
129 dbt->flags = DB_DBT_REALLOC;
130 }
131
132 static void
133 dbt_to_sv (SV *sv, DBT *dbt)
134 {
135 if (sv)
136 {
137 SvREADONLY_off (sv);
138
139 if (dbt->data)
140 sv_setpvn_mg (sv, dbt->data, dbt->size);
141 else
142 sv_setsv_mg (sv, &PL_sv_undef);
143
144 SvREFCNT_dec (sv);
145 }
146
147 free (dbt->data);
148 }
149
150 enum {
151 REQ_QUIT,
152 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
153 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
154 REQ_ENV_LOG_ARCHIVE,
155 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
156 REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
157 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
158 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
159 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
160 };
161
162 typedef struct bdb_cb
163 {
164 struct bdb_cb *volatile next;
165 SV *callback;
166 int type, pri, result;
167
168 DB_ENV *env;
169 DB *db;
170 DB_TXN *txn;
171 DBC *dbc;
172
173 UV uv1;
174 int int1, int2;
175 U32 uint1, uint2;
176 char *buf1, *buf2, *buf3;
177 SV *sv1, *sv2, *sv3;
178
179 DBT dbt1, dbt2, dbt3;
180 DB_KEY_RANGE key_range;
181 #if DB_VERSION_MINOR >= 3
182 DB_SEQUENCE *seq;
183 db_seq_t seq_t;
184 #endif
185
186 SV *rsv1, *rsv2; // keep some request objects alive
187 } bdb_cb;
188
189 typedef bdb_cb *bdb_req;
190
191 enum {
192 PRI_MIN = -4,
193 PRI_MAX = 4,
194
195 DEFAULT_PRI = 0,
196 PRI_BIAS = -PRI_MIN,
197 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
198 };
199
200 #define AIO_TICKS ((1000000 + 1023) >> 10)
201
202 static SV *on_next_submit;
203
204 static unsigned int max_poll_time = 0;
205 static unsigned int max_poll_reqs = 0;
206
207 /* calculcate time difference in ~1/AIO_TICKS of a second */
208 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
209 {
210 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
211 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
212 }
213
214 static int next_pri = DEFAULT_PRI + PRI_BIAS;
215
216 static unsigned int started, idle, wanted;
217
218 /* worker threads management */
219 static mutex_t wrklock = X_MUTEX_INIT;
220
221 typedef struct worker {
222 /* locked by wrklock */
223 struct worker *prev, *next;
224
225 thread_t tid;
226
227 /* locked by reslock, reqlock or wrklock */
228 bdb_req req; /* currently processed request */
229 void *dbuf;
230 DIR *dirp;
231 } worker;
232
233 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
234
235 static void worker_clear (worker *wrk)
236 {
237 }
238
239 static void worker_free (worker *wrk)
240 {
241 wrk->next->prev = wrk->prev;
242 wrk->prev->next = wrk->next;
243
244 free (wrk);
245 }
246
247 static volatile unsigned int nreqs, nready, npending;
248 static volatile unsigned int max_idle = 4;
249 static volatile unsigned int max_outstanding = 0xffffffff;
250 static int respipe_osf [2], respipe [2] = { -1, -1 };
251
252 static mutex_t reslock = X_MUTEX_INIT;
253 static mutex_t reqlock = X_MUTEX_INIT;
254 static cond_t reqwait = X_COND_INIT;
255
256 #if WORDACCESS_UNSAFE
257
258 static unsigned int get_nready (void)
259 {
260 unsigned int retval;
261
262 X_LOCK (reqlock);
263 retval = nready;
264 X_UNLOCK (reqlock);
265
266 return retval;
267 }
268
269 static unsigned int get_npending (void)
270 {
271 unsigned int retval;
272
273 X_LOCK (reslock);
274 retval = npending;
275 X_UNLOCK (reslock);
276
277 return retval;
278 }
279
280 static unsigned int get_nthreads (void)
281 {
282 unsigned int retval;
283
284 X_LOCK (wrklock);
285 retval = started;
286 X_UNLOCK (wrklock);
287
288 return retval;
289 }
290
291 #else
292
293 # define get_nready() nready
294 # define get_npending() npending
295 # define get_nthreads() started
296
297 #endif
298
299 /*
300 * a somewhat faster data structure might be nice, but
301 * with 8 priorities this actually needs <20 insns
302 * per shift, the most expensive operation.
303 */
304 typedef struct {
305 bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
306 int size;
307 } reqq;
308
309 static reqq req_queue;
310 static reqq res_queue;
311
312 int reqq_push (reqq *q, bdb_req req)
313 {
314 int pri = req->pri;
315 req->next = 0;
316
317 if (q->qe[pri])
318 {
319 q->qe[pri]->next = req;
320 q->qe[pri] = req;
321 }
322 else
323 q->qe[pri] = q->qs[pri] = req;
324
325 return q->size++;
326 }
327
328 bdb_req reqq_shift (reqq *q)
329 {
330 int pri;
331
332 if (!q->size)
333 return 0;
334
335 --q->size;
336
337 for (pri = NUM_PRI; pri--; )
338 {
339 bdb_req req = q->qs[pri];
340
341 if (req)
342 {
343 if (!(q->qs[pri] = req->next))
344 q->qe[pri] = 0;
345
346 return req;
347 }
348 }
349
350 abort ();
351 }
352
353 static int poll_cb (void);
354 static void req_free (bdb_req req);
355
356 static int req_invoke (bdb_req req)
357 {
358 switch (req->type)
359 {
360 case REQ_DB_CLOSE:
361 SvREFCNT_dec (req->sv1);
362 break;
363
364 case REQ_DB_GET:
365 case REQ_DB_PGET:
366 case REQ_C_GET:
367 case REQ_C_PGET:
368 case REQ_DB_PUT:
369 case REQ_C_PUT:
370 dbt_to_sv (req->sv1, &req->dbt1);
371 dbt_to_sv (req->sv2, &req->dbt2);
372 dbt_to_sv (req->sv3, &req->dbt3);
373 break;
374
375 case REQ_DB_KEY_RANGE:
376 {
377 AV *av = newAV ();
378
379 av_push (av, newSVnv (req->key_range.less));
380 av_push (av, newSVnv (req->key_range.equal));
381 av_push (av, newSVnv (req->key_range.greater));
382
383 av = (AV *)newRV_noinc ((SV *)av);
384
385 SvREADONLY_off (req->sv1);
386 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
387 SvREFCNT_dec (av);
388 SvREFCNT_dec (req->sv1);
389 }
390 break;
391
392 #if DB_VERSION_MINOR >= 3
393 case REQ_SEQ_GET:
394 SvREADONLY_off (req->sv1);
395
396 if (sizeof (IV) > 4)
397 sv_setiv_mg (req->sv1, (IV)req->seq_t);
398 else
399 sv_setnv_mg (req->sv1, (NV)req->seq_t);
400
401 SvREFCNT_dec (req->sv1);
402 break;
403 #endif
404
405 case REQ_ENV_LOG_ARCHIVE:
406 {
407 AV *av = newAV ();
408 char **listp = (char **)req->buf1;
409
410 if (listp)
411 while (*listp)
412 av_push (av, newSVpv (*listp, 0)), ++listp;
413
414 av = (AV *)newRV_noinc ((SV *)av);
415
416 SvREADONLY_off (req->sv1);
417 sv_setsv_mg (req->sv1, (SV *)av);
418 SvREFCNT_dec (av);
419 SvREFCNT_dec (req->sv1);
420 }
421 break;
422 }
423
424 errno = req->result;
425
426 if (req->callback)
427 {
428 dSP;
429
430 ENTER;
431 SAVETMPS;
432 PUSHMARK (SP);
433
434 PUTBACK;
435 call_sv (req->callback, G_VOID | G_EVAL);
436 SPAGAIN;
437
438 FREETMPS;
439 LEAVE;
440
441 return !SvTRUE (ERRSV);
442 }
443
444 return 1;
445 }
446
447 static void req_free (bdb_req req)
448 {
449 SvREFCNT_dec (req->callback);
450
451 SvREFCNT_dec (req->rsv1);
452 SvREFCNT_dec (req->rsv2);
453
454 free (req->buf1);
455 free (req->buf2);
456 free (req->buf3);
457
458 Safefree (req);
459 }
460
461 #ifdef USE_SOCKETS_AS_HANDLES
462 # define TO_SOCKET(x) (win32_get_osfhandle (x))
463 #else
464 # define TO_SOCKET(x) (x)
465 #endif
466
467 static void
468 create_respipe (void)
469 {
470 #ifdef _WIN32
471 int arg; /* argg */
472 #endif
473 int old_readfd = respipe [0];
474
475 if (respipe [1] >= 0)
476 respipe_close (TO_SOCKET (respipe [1]));
477
478 #ifdef _WIN32
479 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
480 #else
481 if (pipe (respipe))
482 #endif
483 croak ("unable to initialize result pipe");
484
485 if (old_readfd >= 0)
486 {
487 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
488 croak ("unable to initialize result pipe(2)");
489
490 respipe_close (respipe [0]);
491 respipe [0] = old_readfd;
492 }
493
494 #ifdef _WIN32
495 arg = 1;
496 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
497 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
498 #else
499 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
500 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
501 #endif
502 croak ("unable to initialize result pipe(3)");
503
504 respipe_osf [0] = TO_SOCKET (respipe [0]);
505 respipe_osf [1] = TO_SOCKET (respipe [1]);
506 }
507
508 static void bdb_request (bdb_req req);
509 X_THREAD_PROC (bdb_proc);
510
511 static void start_thread (void)
512 {
513 worker *wrk = calloc (1, sizeof (worker));
514
515 if (!wrk)
516 croak ("unable to allocate worker thread data");
517
518 X_LOCK (wrklock);
519 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
520 {
521 wrk->prev = &wrk_first;
522 wrk->next = wrk_first.next;
523 wrk_first.next->prev = wrk;
524 wrk_first.next = wrk;
525 ++started;
526 }
527 else
528 free (wrk);
529
530 X_UNLOCK (wrklock);
531 }
532
533 static void maybe_start_thread (void)
534 {
535 if (get_nthreads () >= wanted)
536 return;
537
538 /* todo: maybe use idle here, but might be less exact */
539 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
540 return;
541
542 start_thread ();
543 }
544
545 static void req_send (bdb_req req)
546 {
547 SV *wait_callback = 0;
548
549 if (on_next_submit)
550 {
551 dSP;
552 SV *cb = sv_2mortal (on_next_submit);
553
554 on_next_submit = 0;
555
556 PUSHMARK (SP);
557 PUTBACK;
558 call_sv (cb, G_DISCARD | G_EVAL);
559 SPAGAIN;
560 }
561
562 // synthesize callback if none given
563 if (!req->callback)
564 {
565 if (SvOK (prepare_cb))
566 {
567 int count;
568
569 dSP;
570 PUSHMARK (SP);
571 PUTBACK;
572 count = call_sv (prepare_cb, G_ARRAY);
573 SPAGAIN;
574
575 if (count != 2)
576 croak ("sync prepare callback must return exactly two values\n");
577
578 wait_callback = POPs;
579 req->callback = SvREFCNT_inc (POPs);
580 }
581 else
582 {
583 // execute request synchronously
584 bdb_request (req);
585 req_invoke (req);
586 req_free (req);
587 return;
588 }
589 }
590
591 ++nreqs;
592
593 X_LOCK (reqlock);
594 ++nready;
595 reqq_push (&req_queue, req);
596 X_COND_SIGNAL (reqwait);
597 X_UNLOCK (reqlock);
598
599 maybe_start_thread ();
600
601 if (wait_callback)
602 {
603 dSP;
604 PUSHMARK (SP);
605 PUTBACK;
606 call_sv (wait_callback, G_DISCARD);
607 }
608 }
609
610 static void end_thread (void)
611 {
612 bdb_req req = calloc (1, sizeof (bdb_cb));
613
614 req->type = REQ_QUIT;
615 req->pri = PRI_MAX + PRI_BIAS;
616
617 X_LOCK (reqlock);
618 reqq_push (&req_queue, req);
619 X_COND_SIGNAL (reqwait);
620 X_UNLOCK (reqlock);
621
622 X_LOCK (wrklock);
623 --started;
624 X_UNLOCK (wrklock);
625 }
626
627 static void set_max_idle (int nthreads)
628 {
629 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
630 max_idle = nthreads <= 0 ? 1 : nthreads;
631 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
632 }
633
634 static void min_parallel (int nthreads)
635 {
636 if (wanted < nthreads)
637 wanted = nthreads;
638 }
639
640 static void max_parallel (int nthreads)
641 {
642 if (wanted > nthreads)
643 wanted = nthreads;
644
645 while (started > wanted)
646 end_thread ();
647 }
648
649 static void poll_wait (void)
650 {
651 fd_set rfd;
652
653 while (nreqs)
654 {
655 int size;
656 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
657 size = res_queue.size;
658 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
659
660 if (size)
661 return;
662
663 maybe_start_thread ();
664
665 FD_ZERO (&rfd);
666 FD_SET (respipe [0], &rfd);
667
668 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
669 }
670 }
671
672 static int poll_cb (void)
673 {
674 dSP;
675 int count = 0;
676 int maxreqs = max_poll_reqs;
677 int do_croak = 0;
678 struct timeval tv_start, tv_now;
679 bdb_req req;
680
681 if (max_poll_time)
682 gettimeofday (&tv_start, 0);
683
684 for (;;)
685 {
686 for (;;)
687 {
688 maybe_start_thread ();
689
690 X_LOCK (reslock);
691 req = reqq_shift (&res_queue);
692
693 if (req)
694 {
695 --npending;
696
697 if (!res_queue.size)
698 {
699 /* read any signals sent by the worker threads */
700 char buf [4];
701 while (respipe_read (respipe [0], buf, 4) == 4)
702 ;
703 }
704 }
705
706 X_UNLOCK (reslock);
707
708 if (!req)
709 break;
710
711 --nreqs;
712
713 if (!req_invoke (req))
714 {
715 req_free (req);
716 croak (0);
717 }
718
719 count++;
720
721 req_free (req);
722
723 if (maxreqs && !--maxreqs)
724 break;
725
726 if (max_poll_time)
727 {
728 gettimeofday (&tv_now, 0);
729
730 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
731 break;
732 }
733 }
734
735 if (nreqs <= max_outstanding)
736 break;
737
738 poll_wait ();
739
740 ++maxreqs;
741 }
742
743 return count;
744 }
745
746 /*****************************************************************************/
747
748 static void
749 bdb_request (bdb_req req)
750 {
751 switch (req->type)
752 {
753 case REQ_ENV_OPEN:
754 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
755 break;
756
757 case REQ_ENV_CLOSE:
758 req->result = req->env->close (req->env, req->uint1);
759 break;
760
761 case REQ_ENV_TXN_CHECKPOINT:
762 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
763 break;
764
765 case REQ_ENV_LOCK_DETECT:
766 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
767 break;
768
769 case REQ_ENV_MEMP_SYNC:
770 req->result = req->env->memp_sync (req->env, 0);
771 break;
772
773 case REQ_ENV_MEMP_TRICKLE:
774 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
775 break;
776
777 case REQ_ENV_DBREMOVE:
778 req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
779 break;
780
781 case REQ_ENV_DBRENAME:
782 req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
783 break;
784
785 case REQ_DB_OPEN:
786 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
787 break;
788
789 case REQ_DB_CLOSE:
790 req->result = req->db->close (req->db, req->uint1);
791 break;
792
793 #if DB_VERSION_MINOR >= 4
794 case REQ_DB_COMPACT:
795 req->result = req->db->compact (req->db, req->txn, req->dbt1.data ? &req->dbt1 : 0, req->dbt2.data ? &req->dbt2 : 0, 0, req->uint1, 0);
796 break;
797 #endif
798
799 case REQ_DB_SYNC:
800 req->result = req->db->sync (req->db, req->uint1);
801 break;
802
803 case REQ_DB_UPGRADE:
804 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
805 break;
806
807 case REQ_DB_PUT:
808 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
809 break;
810
811 #if DB_VERSION_MINOR >= 6
812 case REQ_DB_EXISTS:
813 req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
814 break;
815 #endif
816 case REQ_DB_GET:
817 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
818 break;
819
820 case REQ_DB_PGET:
821 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
822 break;
823
824 case REQ_DB_DEL:
825 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
826 break;
827
828 case REQ_DB_KEY_RANGE:
829 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
830 break;
831
832 case REQ_TXN_COMMIT:
833 req->result = req->txn->commit (req->txn, req->uint1);
834 break;
835
836 case REQ_TXN_ABORT:
837 req->result = req->txn->abort (req->txn);
838 break;
839
840 case REQ_TXN_FINISH:
841 if (req->txn->flags & TXN_DEADLOCK)
842 {
843 req->result = req->txn->abort (req->txn);
844 if (!req->result)
845 req->result = DB_LOCK_DEADLOCK;
846 }
847 else
848 req->result = req->txn->commit (req->txn, req->uint1);
849 break;
850
851 case REQ_C_CLOSE:
852 req->result = req->dbc->c_close (req->dbc);
853 break;
854
855 case REQ_C_COUNT:
856 {
857 db_recno_t recno;
858 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
859 req->uv1 = recno;
860 }
861 break;
862
863 case REQ_C_PUT:
864 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
865 break;
866
867 case REQ_C_GET:
868 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
869 break;
870
871 case REQ_C_PGET:
872 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
873 break;
874
875 case REQ_C_DEL:
876 req->result = req->dbc->c_del (req->dbc, req->uint1);
877 break;
878
879 #if DB_VERSION_MINOR >= 3
880 case REQ_SEQ_OPEN:
881 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
882 break;
883
884 case REQ_SEQ_CLOSE:
885 req->result = req->seq->close (req->seq, req->uint1);
886 break;
887
888 case REQ_SEQ_GET:
889 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
890 break;
891
892 case REQ_SEQ_REMOVE:
893 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
894 break;
895 #endif
896
897 case REQ_ENV_LOG_ARCHIVE:
898 {
899 char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
900 req->result = req->env->log_archive (req->env, &listp, req->uint1);
901 req->buf1 = (char *)listp;
902 }
903 break;
904
905 default:
906 req->result = ENOSYS;
907 break;
908 }
909
910 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
911 req->txn->flags |= TXN_DEADLOCK;
912 }
913
914 X_THREAD_PROC (bdb_proc)
915 {
916 bdb_req req;
917 struct timespec ts;
918 worker *self = (worker *)thr_arg;
919
920 /* try to distribute timeouts somewhat evenly */
921 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
922
923 for (;;)
924 {
925 ts.tv_sec = time (0) + IDLE_TIMEOUT;
926
927 X_LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 ++idle;
937
938 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
939 == ETIMEDOUT)
940 {
941 if (idle > max_idle)
942 {
943 --idle;
944 X_UNLOCK (reqlock);
945 X_LOCK (wrklock);
946 --started;
947 X_UNLOCK (wrklock);
948 goto quit;
949 }
950
951 /* we are allowed to idle, so do so without any timeout */
952 X_COND_WAIT (reqwait, reqlock);
953 ts.tv_sec = time (0) + IDLE_TIMEOUT;
954 }
955
956 --idle;
957 }
958
959 --nready;
960
961 X_UNLOCK (reqlock);
962
963 if (req->type == REQ_QUIT)
964 {
965 X_LOCK (reslock);
966 free (req);
967 self->req = 0;
968 X_UNLOCK (reslock);
969
970 goto quit;
971 }
972
973 bdb_request (req);
974
975 X_LOCK (reslock);
976
977 ++npending;
978
979 if (!reqq_push (&res_queue, req))
980 /* write a dummy byte to the pipe so fh becomes ready */
981 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
982
983 self->req = 0;
984 worker_clear (self);
985
986 X_UNLOCK (reslock);
987 }
988
989 quit:
990 X_LOCK (wrklock);
991 worker_free (self);
992 X_UNLOCK (wrklock);
993
994 return 0;
995 }
996
997 /*****************************************************************************/
998
999 static void atfork_prepare (void)
1000 {
1001 X_LOCK (wrklock);
1002 X_LOCK (reqlock);
1003 X_LOCK (reslock);
1004 }
1005
1006 static void atfork_parent (void)
1007 {
1008 X_UNLOCK (reslock);
1009 X_UNLOCK (reqlock);
1010 X_UNLOCK (wrklock);
1011 }
1012
1013 static void atfork_child (void)
1014 {
1015 bdb_req prv;
1016
1017 while (prv = reqq_shift (&req_queue))
1018 req_free (prv);
1019
1020 while (prv = reqq_shift (&res_queue))
1021 req_free (prv);
1022
1023 while (wrk_first.next != &wrk_first)
1024 {
1025 worker *wrk = wrk_first.next;
1026
1027 if (wrk->req)
1028 req_free (wrk->req);
1029
1030 worker_clear (wrk);
1031 worker_free (wrk);
1032 }
1033
1034 started = 0;
1035 idle = 0;
1036 nreqs = 0;
1037 nready = 0;
1038 npending = 0;
1039
1040 create_respipe ();
1041
1042 atfork_parent ();
1043 }
1044
1045 #define dREQ(reqtype,rsvcnt) \
1046 bdb_req req; \
1047 int req_pri = next_pri; \
1048 next_pri = DEFAULT_PRI + PRI_BIAS; \
1049 \
1050 if (callback && SvOK (callback)) \
1051 croak ("callback has illegal type or extra arguments"); \
1052 \
1053 Newz (0, req, 1, bdb_cb); \
1054 if (!req) \
1055 croak ("out of memory during bdb_req allocation"); \
1056 \
1057 req->callback = SvREFCNT_inc (cb); \
1058 req->type = (reqtype); \
1059 req->pri = req_pri; \
1060 if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
1061 if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
1062 (void)0;
1063
1064 #define REQ_SEND \
1065 req_send (req)
1066
1067 #define SvPTR(var, arg, type, class, nullok) \
1068 if (!SvOK (arg)) \
1069 { \
1070 if (nullok != 1) \
1071 croak (# var " must be a " # class " object, not undef"); \
1072 \
1073 (var) = 0; \
1074 } \
1075 else if (sv_derived_from ((arg), # class)) \
1076 { \
1077 IV tmp = SvIV ((SV*) SvRV (arg)); \
1078 (var) = INT2PTR (type, tmp); \
1079 if (!var && nullok != 2) \
1080 croak (# var " is not a valid " # class " object anymore"); \
1081 } \
1082 else \
1083 croak (# var " is not of type " # class);
1084
1085 #define ARG_MUTABLE(name) \
1086 if (SvREADONLY (name)) \
1087 croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
1088
1089 static void
1090 ptr_nuke (SV *sv)
1091 {
1092 assert (SvROK (sv));
1093 sv_setiv (SvRV (sv), 0);
1094 }
1095
1096 static int
1097 errno_get (pTHX_ SV *sv, MAGIC *mg)
1098 {
1099 if (*mg->mg_ptr == '!') // should always be the case
1100 if (-30999 <= errno && errno <= -30800)
1101 {
1102 sv_setnv (sv, (NV)errno);
1103 sv_setpv (sv, db_strerror (errno));
1104 SvNOK_on (sv); /* what a wonderful hack! */
1105 // ^^^ copied from perl sources
1106 return 0;
1107 }
1108
1109 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1110 }
1111
1112 static MGVTBL vtbl_errno;
1113
1114 // this wonderful hack :( patches perl's $! variable to support our errno values
1115 static void
1116 patch_errno (void)
1117 {
1118 SV *sv;
1119 MAGIC *mg;
1120
1121 if (!(sv = get_sv ("!", 1)))
1122 return;
1123
1124 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1125 return;
1126
1127 if (mg->mg_virtual != &PL_vtbl_sv)
1128 return;
1129
1130 vtbl_errno = PL_vtbl_sv;
1131 vtbl_errno.svt_get = errno_get;
1132 mg->mg_virtual = &vtbl_errno;
1133 }
1134
1135 #if __GNUC__ >= 4
1136 # define noinline __attribute__ ((noinline))
1137 #else
1138 # define noinline
1139 #endif
1140
1141 static noinline SV *
1142 pop_callback (I32 *ritems, SV *sv)
1143 {
1144 if (SvROK (sv))
1145 {
1146 HV *st;
1147 GV *gvp;
1148 CV *cv;
1149 const char *name;
1150
1151 /* forgive me */
1152 if (SvTYPE (SvRV (sv)) == SVt_PVMG
1153 && (st = SvSTASH (SvRV (sv)))
1154 && (name = HvNAME_get (st))
1155 && (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
1156 return 0;
1157
1158 if ((cv = sv_2cv (sv, &st, &gvp, 0)))
1159 {
1160 --*ritems;
1161 return (SV *)cv;
1162 }
1163 }
1164
1165 return 0;
1166 }
1167
1168 /* stupid windows defines CALLBACK as well */
1169 #undef CALLBACK
1170 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1171
1172 MODULE = BDB PACKAGE = BDB
1173
1174 PROTOTYPES: ENABLE
1175
1176 BOOT:
1177 {
1178 HV *stash = gv_stashpv ("BDB", 1);
1179
1180 static const struct {
1181 const char *name;
1182 IV iv;
1183 } *civ, const_iv[] = {
1184 #define const_iv(name) { # name, (IV)DB_ ## name },
1185 const_iv (RPCCLIENT)
1186 const_iv (INIT_CDB)
1187 const_iv (INIT_LOCK)
1188 const_iv (INIT_LOG)
1189 const_iv (INIT_MPOOL)
1190 const_iv (INIT_REP)
1191 const_iv (INIT_TXN)
1192 const_iv (RECOVER)
1193 const_iv (INIT_TXN)
1194 const_iv (RECOVER_FATAL)
1195 const_iv (CREATE)
1196 const_iv (RDONLY)
1197 const_iv (USE_ENVIRON)
1198 const_iv (USE_ENVIRON_ROOT)
1199 const_iv (LOCKDOWN)
1200 const_iv (PRIVATE)
1201 const_iv (SYSTEM_MEM)
1202 const_iv (AUTO_COMMIT)
1203 const_iv (CDB_ALLDB)
1204 const_iv (DIRECT_DB)
1205 const_iv (NOLOCKING)
1206 const_iv (NOMMAP)
1207 const_iv (NOPANIC)
1208 const_iv (OVERWRITE)
1209 const_iv (PANIC_ENVIRONMENT)
1210 const_iv (REGION_INIT)
1211 const_iv (TIME_NOTGRANTED)
1212 const_iv (TXN_NOSYNC)
1213 const_iv (TXN_NOT_DURABLE)
1214 const_iv (TXN_WRITE_NOSYNC)
1215 const_iv (WRITECURSOR)
1216 const_iv (YIELDCPU)
1217 const_iv (ENCRYPT_AES)
1218 const_iv (XA_CREATE)
1219 const_iv (BTREE)
1220 const_iv (HASH)
1221 const_iv (QUEUE)
1222 const_iv (RECNO)
1223 const_iv (UNKNOWN)
1224 const_iv (EXCL)
1225 const_iv (TRUNCATE)
1226 const_iv (NOSYNC)
1227 const_iv (CHKSUM)
1228 const_iv (ENCRYPT)
1229 const_iv (DUP)
1230 const_iv (DUPSORT)
1231 //const_iv (RECNUM)
1232 const_iv (RENUMBER)
1233 const_iv (REVSPLITOFF)
1234 const_iv (CONSUME)
1235 const_iv (CONSUME_WAIT)
1236 const_iv (GET_BOTH)
1237 const_iv (GET_BOTH_RANGE)
1238 //const_iv (SET_RECNO)
1239 //const_iv (MULTIPLE)
1240 const_iv (SNAPSHOT)
1241 const_iv (JOIN_ITEM)
1242 const_iv (JOIN_NOSORT)
1243 const_iv (RMW)
1244
1245 const_iv (NOTFOUND)
1246 const_iv (KEYEMPTY)
1247 const_iv (LOCK_DEADLOCK)
1248 const_iv (LOCK_NOTGRANTED)
1249 const_iv (RUNRECOVERY)
1250 const_iv (OLD_VERSION)
1251 const_iv (REP_HANDLE_DEAD)
1252 const_iv (SECONDARY_BAD)
1253
1254 const_iv (APPEND)
1255 const_iv (NODUPDATA)
1256 const_iv (NOOVERWRITE)
1257
1258 const_iv (TXN_NOWAIT)
1259 const_iv (TXN_SYNC)
1260
1261 const_iv (SET_LOCK_TIMEOUT)
1262 const_iv (SET_TXN_TIMEOUT)
1263
1264 const_iv (FIRST)
1265 const_iv (NEXT)
1266 const_iv (NEXT_DUP)
1267 const_iv (NEXT_NODUP)
1268 const_iv (PREV)
1269 const_iv (PREV_NODUP)
1270 const_iv (SET)
1271 const_iv (SET_RANGE)
1272 const_iv (LAST)
1273 const_iv (BEFORE)
1274 const_iv (AFTER)
1275 const_iv (CURRENT)
1276 const_iv (KEYFIRST)
1277 const_iv (KEYLAST)
1278 const_iv (NODUPDATA)
1279
1280 const_iv (FORCE)
1281
1282 const_iv (LOCK_DEFAULT)
1283 const_iv (LOCK_EXPIRE)
1284 const_iv (LOCK_MAXLOCKS)
1285 const_iv (LOCK_MINLOCKS)
1286 const_iv (LOCK_MINWRITE)
1287 const_iv (LOCK_OLDEST)
1288 const_iv (LOCK_RANDOM)
1289 const_iv (LOCK_YOUNGEST)
1290
1291 const_iv (DONOTINDEX)
1292 const_iv (KEYEMPTY )
1293 const_iv (KEYEXIST )
1294 const_iv (LOCK_DEADLOCK)
1295 const_iv (LOCK_NOTGRANTED)
1296 const_iv (NOSERVER)
1297 const_iv (NOSERVER_HOME)
1298 const_iv (NOSERVER_ID)
1299 const_iv (NOTFOUND)
1300 const_iv (PAGE_NOTFOUND)
1301 const_iv (REP_DUPMASTER)
1302 const_iv (REP_HANDLE_DEAD)
1303 const_iv (REP_HOLDELECTION)
1304 const_iv (REP_ISPERM)
1305 const_iv (REP_NEWMASTER)
1306 const_iv (REP_NEWSITE)
1307 const_iv (REP_NOTPERM)
1308 const_iv (REP_UNAVAIL)
1309 const_iv (RUNRECOVERY)
1310 const_iv (SECONDARY_BAD)
1311 const_iv (VERIFY_BAD)
1312
1313 const_iv (ARCH_ABS)
1314 const_iv (ARCH_DATA)
1315 const_iv (ARCH_LOG)
1316 const_iv (ARCH_REMOVE)
1317
1318 const_iv (VERB_DEADLOCK)
1319 const_iv (VERB_RECOVERY)
1320 const_iv (VERB_REPLICATION)
1321 const_iv (VERB_WAITSFOR)
1322
1323 const_iv (VERSION_MAJOR)
1324 const_iv (VERSION_MINOR)
1325 const_iv (VERSION_PATCH)
1326 #if DB_VERSION_MINOR >= 3
1327 const_iv (INORDER)
1328 const_iv (LOCK_MAXWRITE)
1329 const_iv (SEQ_DEC)
1330 const_iv (SEQ_INC)
1331 const_iv (SEQ_WRAP)
1332 const_iv (BUFFER_SMALL)
1333 const_iv (LOG_BUFFER_FULL)
1334 const_iv (VERSION_MISMATCH)
1335 #endif
1336 #if DB_VERSION_MINOR >= 4
1337 const_iv (REGISTER)
1338 const_iv (DSYNC_DB)
1339 const_iv (READ_COMMITTED)
1340 const_iv (READ_UNCOMMITTED)
1341 const_iv (REP_IGNORE)
1342 const_iv (REP_LOCKOUT)
1343 const_iv (REP_JOIN_FAILURE)
1344 const_iv (FREE_SPACE)
1345 const_iv (FREELIST_ONLY)
1346 const_iv (VERB_REGISTER)
1347 #endif
1348 #if DB_VERSION_MINOR >= 5
1349 const_iv (MULTIVERSION)
1350 const_iv (TXN_SNAPSHOT)
1351 #endif
1352 #if DB_VERSION_MINOR >= 6
1353 const_iv (PREV_DUP)
1354 const_iv (PRIORITY_UNCHANGED)
1355 const_iv (PRIORITY_VERY_LOW)
1356 const_iv (PRIORITY_LOW)
1357 const_iv (PRIORITY_DEFAULT)
1358 const_iv (PRIORITY_HIGH)
1359 const_iv (PRIORITY_VERY_HIGH)
1360 const_iv (IGNORE_LEASE)
1361 #endif
1362 #if DB_VERSION_MINOR >= 7
1363 //const_iv (MULTIPLE_KEY)
1364 const_iv (LOG_DIRECT)
1365 const_iv (LOG_DSYNC)
1366 const_iv (LOG_AUTO_REMOVE)
1367 const_iv (LOG_IN_MEMORY)
1368 const_iv (LOG_ZERO)
1369 #else
1370 const_iv (DIRECT_LOG)
1371 const_iv (LOG_AUTOREMOVE)
1372 # if DB_VERSION_MINOR >= 3
1373 const_iv (DSYNC_LOG)
1374 const_iv (LOG_INMEMORY)
1375 # endif
1376 #endif
1377 };
1378
1379 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1380 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1381
1382 prepare_cb = &PL_sv_undef;
1383
1384 {
1385 /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1386 char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1387
1388 newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1389 }
1390
1391 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1392
1393 create_respipe ();
1394
1395 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1396 patch_errno ();
1397 }
1398
1399 void
1400 max_poll_reqs (int nreqs)
1401 PROTOTYPE: $
1402 CODE:
1403 max_poll_reqs = nreqs;
1404
1405 void
1406 max_poll_time (double nseconds)
1407 PROTOTYPE: $
1408 CODE:
1409 max_poll_time = nseconds * AIO_TICKS;
1410
1411 void
1412 min_parallel (int nthreads)
1413 PROTOTYPE: $
1414
1415 void
1416 max_parallel (int nthreads)
1417 PROTOTYPE: $
1418
1419 void
1420 max_idle (int nthreads)
1421 PROTOTYPE: $
1422 CODE:
1423 set_max_idle (nthreads);
1424
1425 int
1426 max_outstanding (int maxreqs)
1427 PROTOTYPE: $
1428 CODE:
1429 RETVAL = max_outstanding;
1430 max_outstanding = maxreqs;
1431 OUTPUT:
1432 RETVAL
1433
1434 int
1435 dbreq_pri (int pri = 0)
1436 PROTOTYPE: ;$
1437 CODE:
1438 RETVAL = next_pri - PRI_BIAS;
1439 if (items > 0)
1440 {
1441 if (pri < PRI_MIN) pri = PRI_MIN;
1442 if (pri > PRI_MAX) pri = PRI_MAX;
1443 next_pri = pri + PRI_BIAS;
1444 }
1445 OUTPUT:
1446 RETVAL
1447
1448 void
1449 dbreq_nice (int nice = 0)
1450 CODE:
1451 nice = next_pri - nice;
1452 if (nice < PRI_MIN) nice = PRI_MIN;
1453 if (nice > PRI_MAX) nice = PRI_MAX;
1454 next_pri = nice + PRI_BIAS;
1455
1456 void
1457 flush ()
1458 PROTOTYPE:
1459 CODE:
1460 while (nreqs)
1461 {
1462 poll_wait ();
1463 poll_cb ();
1464 }
1465
1466 int
1467 poll ()
1468 PROTOTYPE:
1469 CODE:
1470 poll_wait ();
1471 RETVAL = poll_cb ();
1472 OUTPUT:
1473 RETVAL
1474
1475 int
1476 poll_fileno ()
1477 PROTOTYPE:
1478 CODE:
1479 RETVAL = respipe [0];
1480 OUTPUT:
1481 RETVAL
1482
1483 int
1484 poll_cb (...)
1485 PROTOTYPE:
1486 CODE:
1487 RETVAL = poll_cb ();
1488 OUTPUT:
1489 RETVAL
1490
1491 void
1492 poll_wait ()
1493 PROTOTYPE:
1494 CODE:
1495 poll_wait ();
1496
1497 int
1498 nreqs ()
1499 PROTOTYPE:
1500 CODE:
1501 RETVAL = nreqs;
1502 OUTPUT:
1503 RETVAL
1504
1505 int
1506 nready ()
1507 PROTOTYPE:
1508 CODE:
1509 RETVAL = get_nready ();
1510 OUTPUT:
1511 RETVAL
1512
1513 int
1514 npending ()
1515 PROTOTYPE:
1516 CODE:
1517 RETVAL = get_npending ();
1518 OUTPUT:
1519 RETVAL
1520
1521 int
1522 nthreads ()
1523 PROTOTYPE:
1524 CODE:
1525 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1526 RETVAL = started;
1527 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1528 OUTPUT:
1529 RETVAL
1530
1531 SV *
1532 set_sync_prepare (SV *cb)
1533 PROTOTYPE: &
1534 CODE:
1535 RETVAL = prepare_cb;
1536 prepare_cb = newSVsv (cb);
1537 OUTPUT:
1538 RETVAL
1539
1540 char *
1541 strerror (int errorno = errno)
1542 PROTOTYPE: ;$
1543 CODE:
1544 RETVAL = db_strerror (errorno);
1545 OUTPUT:
1546 RETVAL
1547
1548 void _on_next_submit (SV *cb)
1549 CODE:
1550 SvREFCNT_dec (on_next_submit);
1551 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1552
1553 DB_ENV *
1554 db_env_create (U32 env_flags = 0)
1555 CODE:
1556 {
1557 errno = db_env_create (&RETVAL, env_flags);
1558 if (errno)
1559 croak ("db_env_create: %s", db_strerror (errno));
1560
1561 if (0)
1562 {
1563 RETVAL->set_errcall (RETVAL, debug_errcall);
1564 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1565 }
1566 }
1567 OUTPUT:
1568 RETVAL
1569
1570 void
1571 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1572 PREINIT:
1573 CALLBACK
1574 CODE:
1575 {
1576 dREQ (REQ_ENV_OPEN, 1);
1577 req->env = env;
1578 req->uint1 = open_flags | DB_THREAD;
1579 req->int1 = mode;
1580 req->buf1 = strdup_ornull (db_home);
1581 REQ_SEND;
1582 }
1583
1584 void
1585 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1586 PREINIT:
1587 CALLBACK
1588 CODE:
1589 {
1590 dREQ (REQ_ENV_CLOSE, 0);
1591 ptr_nuke (ST (0));
1592 req->env = env;
1593 req->uint1 = flags;
1594 REQ_SEND;
1595 }
1596
1597 void
1598 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1599 PREINIT:
1600 CALLBACK
1601 CODE:
1602 {
1603 dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
1604 req->env = env;
1605 req->uint1 = kbyte;
1606 req->int1 = min;
1607 req->uint2 = flags;
1608 REQ_SEND;
1609 }
1610
1611 void
1612 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1613 PREINIT:
1614 CALLBACK
1615 CODE:
1616 {
1617 dREQ (REQ_ENV_LOCK_DETECT, 1);
1618 req->env = env;
1619 req->uint1 = flags;
1620 req->uint2 = atype;
1621 /* req->int2 = 0; dummy */
1622 REQ_SEND;
1623 }
1624
1625 void
1626 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1627 PREINIT:
1628 CALLBACK
1629 CODE:
1630 {
1631 dREQ (REQ_ENV_MEMP_SYNC, 1);
1632 req->env = env;
1633 REQ_SEND;
1634 }
1635
1636 void
1637 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1638 PREINIT:
1639 CALLBACK
1640 CODE:
1641 {
1642 dREQ (REQ_ENV_MEMP_TRICKLE, 1);
1643 req->env = env;
1644 req->int1 = percent;
1645 REQ_SEND;
1646 }
1647
1648 void
1649 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1650 PREINIT:
1651 CALLBACK
1652 CODE:
1653 {
1654 dREQ (REQ_ENV_DBREMOVE, 2);
1655 req->env = env;
1656 req->buf1 = strdup_ornull (file);
1657 req->buf2 = strdup_ornull (database);
1658 req->uint1 = flags;
1659 REQ_SEND;
1660 }
1661
1662 void
1663 db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
1664 PREINIT:
1665 CALLBACK
1666 CODE:
1667 {
1668 dREQ (REQ_ENV_DBRENAME, 2);
1669 req->env = env;
1670 req->buf1 = strdup_ornull (file);
1671 req->buf2 = strdup_ornull (database);
1672 req->buf3 = strdup_ornull (newname);
1673 req->uint1 = flags;
1674 REQ_SEND;
1675 }
1676
1677 void
1678 db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
1679 PREINIT:
1680 CALLBACK
1681 CODE:
1682 {
1683 dREQ (REQ_ENV_LOG_ARCHIVE, 1);
1684 req->sv1 = SvREFCNT_inc (listp);
1685 req->env = env;
1686 req->uint1 = flags;
1687 REQ_SEND;
1688 }
1689
1690 DB *
1691 db_create (DB_ENV *env = 0, U32 flags = 0)
1692 CODE:
1693 {
1694 errno = db_create (&RETVAL, env, flags);
1695 if (errno)
1696 croak ("db_create: %s", db_strerror (errno));
1697
1698 if (RETVAL)
1699 RETVAL->app_private = (void *)newSVsv (ST (0));
1700 }
1701 OUTPUT:
1702 RETVAL
1703
1704 void
1705 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1706 PREINIT:
1707 CALLBACK
1708 CODE:
1709 {
1710 dREQ (REQ_DB_OPEN, 2);
1711 req->db = db;
1712 req->txn = txnid;
1713 req->buf1 = strdup_ornull (file);
1714 req->buf2 = strdup_ornull (database);
1715 req->int1 = type;
1716 req->uint1 = flags | DB_THREAD;
1717 req->int2 = mode;
1718 REQ_SEND;
1719 }
1720
1721 void
1722 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1723 PREINIT:
1724 CALLBACK
1725 CODE:
1726 {
1727 dREQ (REQ_DB_CLOSE, 0);
1728 ptr_nuke (ST (0));
1729 req->db = db;
1730 req->uint1 = flags;
1731 req->sv1 = (SV *)db->app_private;
1732 REQ_SEND;
1733 }
1734
1735 #if DB_VERSION_MINOR >= 4
1736
1737 void
1738 db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = 0)
1739 PREINIT:
1740 CALLBACK
1741 CODE:
1742 {
1743 dREQ (REQ_DB_COMPACT, 2);
1744 req->db = db;
1745 req->txn = txn;
1746 if (start) sv_to_dbt (&req->dbt1, start);
1747 if (stop ) sv_to_dbt (&req->dbt2, stop );
1748 req->uint1 = flags;
1749 REQ_SEND;
1750 }
1751
1752 #endif
1753
1754 void
1755 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1756 PREINIT:
1757 CALLBACK
1758 CODE:
1759 {
1760 dREQ (REQ_DB_SYNC, 1);
1761 req->db = db;
1762 req->uint1 = flags;
1763 REQ_SEND;
1764 }
1765
1766 void
1767 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1768 PREINIT:
1769 CALLBACK
1770 CODE:
1771 {
1772 dREQ (REQ_DB_SYNC, 1);
1773 req->db = db;
1774 req->buf1 = strdup (file);
1775 req->uint1 = flags;
1776 REQ_SEND;
1777 }
1778
1779 void
1780 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
1781 PREINIT:
1782 CALLBACK
1783 CODE:
1784 {
1785 dREQ (REQ_DB_KEY_RANGE, 2);
1786 req->db = db;
1787 req->txn = txn;
1788 sv_to_dbt (&req->dbt1, key);
1789 req->uint1 = flags;
1790 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1791 REQ_SEND;
1792 }
1793
1794 void
1795 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1796 PREINIT:
1797 CALLBACK
1798 CODE:
1799 {
1800 dREQ (REQ_DB_PUT, 2);
1801 req->db = db;
1802 req->txn = txn;
1803 sv_to_dbt (&req->dbt1, key);
1804 sv_to_dbt (&req->dbt2, data);
1805 req->uint1 = flags;
1806 REQ_SEND;
1807 }
1808
1809 #if DB_VERSION_MINOR >= 6
1810
1811 void
1812 db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1813 PREINIT:
1814 CALLBACK
1815 CODE:
1816 {
1817 dREQ (REQ_DB_EXISTS, 2);
1818 req->db = db;
1819 req->txn = txn;
1820 req->uint1 = flags;
1821 sv_to_dbt (&req->dbt1, key);
1822 REQ_SEND;
1823 }
1824
1825 #endif
1826
1827 void
1828 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1829 PREINIT:
1830 CALLBACK
1831 CODE:
1832 {
1833 //TODO: key is somtimesmutable
1834 dREQ (REQ_DB_GET, 2);
1835 req->db = db;
1836 req->txn = txn;
1837 req->uint1 = flags;
1838 sv_to_dbt (&req->dbt1, key);
1839 req->dbt3.flags = DB_DBT_MALLOC;
1840 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1841 REQ_SEND;
1842 }
1843
1844 void
1845 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1846 PREINIT:
1847 CALLBACK
1848 CODE:
1849 {
1850 //TODO: key is somtimesmutable
1851 dREQ (REQ_DB_PGET, 2);
1852 req->db = db;
1853 req->txn = txn;
1854 req->uint1 = flags;
1855
1856 sv_to_dbt (&req->dbt1, key);
1857
1858 req->dbt2.flags = DB_DBT_MALLOC;
1859 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1860
1861 req->dbt3.flags = DB_DBT_MALLOC;
1862 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1863 REQ_SEND;
1864 }
1865
1866 void
1867 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1868 PREINIT:
1869 CALLBACK
1870 CODE:
1871 {
1872 dREQ (REQ_DB_DEL, 2);
1873 req->db = db;
1874 req->txn = txn;
1875 req->uint1 = flags;
1876 sv_to_dbt (&req->dbt1, key);
1877 REQ_SEND;
1878 }
1879
1880 void
1881 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1882 PREINIT:
1883 CALLBACK
1884 CODE:
1885 {
1886 dREQ (REQ_TXN_COMMIT, 0);
1887 ptr_nuke (ST (0));
1888 req->txn = txn;
1889 req->uint1 = flags;
1890 REQ_SEND;
1891 }
1892
1893 void
1894 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1895 PREINIT:
1896 CALLBACK
1897 CODE:
1898 {
1899 dREQ (REQ_TXN_ABORT, 0);
1900 ptr_nuke (ST (0));
1901 req->txn = txn;
1902 REQ_SEND;
1903 }
1904
1905 void
1906 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1907 PREINIT:
1908 CALLBACK
1909 CODE:
1910 {
1911 dREQ (REQ_TXN_FINISH, 0);
1912 ptr_nuke (ST (0));
1913 req->txn = txn;
1914 req->uint1 = flags;
1915 REQ_SEND;
1916 }
1917
1918 void
1919 db_c_close (DBC *dbc, SV *callback = 0)
1920 PREINIT:
1921 CALLBACK
1922 CODE:
1923 {
1924 dREQ (REQ_C_CLOSE, 0);
1925 ptr_nuke (ST (0));
1926 req->dbc = dbc;
1927 REQ_SEND;
1928 }
1929
1930 void
1931 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1932 PREINIT:
1933 CALLBACK
1934 CODE:
1935 {
1936 dREQ (REQ_C_COUNT, 1);
1937 req->dbc = dbc;
1938 req->sv1 = SvREFCNT_inc (count);
1939 REQ_SEND;
1940 }
1941
1942 void
1943 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1944 PREINIT:
1945 CALLBACK
1946 CODE:
1947 {
1948 dREQ (REQ_C_PUT, 1);
1949 req->dbc = dbc;
1950 sv_to_dbt (&req->dbt1, key);
1951 sv_to_dbt (&req->dbt2, data);
1952 req->uint1 = flags;
1953 REQ_SEND;
1954 }
1955
1956 void
1957 db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1958 PREINIT:
1959 CALLBACK
1960 CODE:
1961 {
1962 if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
1963 croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
1964 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
1965 croak ("argument \"%s\" must be byte/octet-encoded in %s",
1966 "key",
1967 "BDB::db_c_get");
1968
1969 {
1970 dREQ (REQ_C_GET, 1);
1971 req->dbc = dbc;
1972 req->uint1 = flags;
1973 if ((flags & DB_OPFLAGS_MASK) == DB_SET)
1974 sv_to_dbt (&req->dbt1, key);
1975 else
1976 {
1977 if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
1978 sv_to_dbt (&req->dbt1, key);
1979 else
1980 req->dbt1.flags = DB_DBT_MALLOC;
1981
1982 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1983 }
1984
1985 if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
1986 || (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
1987 sv_to_dbt (&req->dbt3, data);
1988 else
1989 req->dbt3.flags = DB_DBT_MALLOC;
1990
1991 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1992 REQ_SEND;
1993 }
1994 }
1995
1996 void
1997 db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1998 PREINIT:
1999 CALLBACK
2000 CODE:
2001 {
2002 if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
2003 croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
2004 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
2005 croak ("argument \"%s\" must be byte/octet-encoded in %s",
2006 "key",
2007 "BDB::db_c_pget");
2008
2009 {
2010 dREQ (REQ_C_PGET, 1);
2011 req->dbc = dbc;
2012 req->uint1 = flags;
2013 if ((flags & DB_OPFLAGS_MASK) == DB_SET)
2014 sv_to_dbt (&req->dbt1, key);
2015 else
2016 {
2017 if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
2018 sv_to_dbt (&req->dbt1, key);
2019 else
2020 req->dbt1.flags = DB_DBT_MALLOC;
2021
2022 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
2023 }
2024
2025 req->dbt2.flags = DB_DBT_MALLOC;
2026 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
2027
2028 if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
2029 || (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
2030 sv_to_dbt (&req->dbt3, data);
2031 else
2032 req->dbt3.flags = DB_DBT_MALLOC;
2033
2034 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
2035 REQ_SEND;
2036 }
2037 }
2038
2039 void
2040 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
2041 PREINIT:
2042 CALLBACK
2043 CODE:
2044 {
2045 dREQ (REQ_C_DEL, 1);
2046 req->dbc = dbc;
2047 req->uint1 = flags;
2048 REQ_SEND;
2049 }
2050
2051
2052 #if DB_VERSION_MINOR >= 3
2053
2054 void
2055 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
2056 PREINIT:
2057 CALLBACK
2058 CODE:
2059 {
2060 dREQ (REQ_SEQ_OPEN, 2);
2061 req->seq = seq;
2062 req->txn = txnid;
2063 req->uint1 = flags | DB_THREAD;
2064 sv_to_dbt (&req->dbt1, key);
2065 REQ_SEND;
2066 }
2067
2068 void
2069 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
2070 PREINIT:
2071 CALLBACK
2072 CODE:
2073 {
2074 dREQ (REQ_SEQ_CLOSE, 0);
2075 ptr_nuke (ST (0));
2076 req->seq = seq;
2077 req->uint1 = flags;
2078 REQ_SEND;
2079 }
2080
2081 void
2082 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
2083 PREINIT:
2084 CALLBACK
2085 CODE:
2086 {
2087 dREQ (REQ_SEQ_GET, 2);
2088 req->seq = seq;
2089 req->txn = txnid;
2090 req->int1 = delta;
2091 req->uint1 = flags;
2092 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
2093 REQ_SEND;
2094 }
2095
2096 void
2097 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
2098 PREINIT:
2099 CALLBACK
2100 CODE:
2101 {
2102 dREQ (REQ_SEQ_REMOVE, 2);
2103 req->seq = seq;
2104 req->txn = txnid;
2105 req->uint1 = flags;
2106 REQ_SEND;
2107 }
2108
2109 #endif
2110
2111
2112 MODULE = BDB PACKAGE = BDB::Env
2113
2114 void
2115 DESTROY (DB_ENV_ornuked *env)
2116 CODE:
2117 if (env)
2118 env->close (env, 0);
2119
2120 int set_data_dir (DB_ENV *env, const char *dir)
2121 CODE:
2122 RETVAL = env->set_data_dir (env, dir);
2123 OUTPUT:
2124 RETVAL
2125
2126 int set_tmp_dir (DB_ENV *env, const char *dir)
2127 CODE:
2128 RETVAL = env->set_tmp_dir (env, dir);
2129 OUTPUT:
2130 RETVAL
2131
2132 int set_lg_dir (DB_ENV *env, const char *dir)
2133 CODE:
2134 RETVAL = env->set_lg_dir (env, dir);
2135 OUTPUT:
2136 RETVAL
2137
2138 int set_shm_key (DB_ENV *env, long shm_key)
2139 CODE:
2140 RETVAL = env->set_shm_key (env, shm_key);
2141 OUTPUT:
2142 RETVAL
2143
2144 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
2145 CODE:
2146 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
2147 OUTPUT:
2148 RETVAL
2149
2150 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
2151 CODE:
2152 RETVAL = env->set_flags (env, flags, onoff);
2153 OUTPUT:
2154 RETVAL
2155
2156 #if DB_VERSION_MINOR >= 7
2157
2158 int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
2159 CODE:
2160 RETVAL = env->set_intermediate_dir_mode (env, mode);
2161 OUTPUT:
2162 RETVAL
2163
2164 int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
2165 CODE:
2166 RETVAL = env->log_set_config (env, flags, onoff);
2167 OUTPUT:
2168 RETVAL
2169
2170 #endif
2171
2172
2173 void set_errfile (DB_ENV *env, FILE *errfile = 0)
2174 CODE:
2175 env->set_errfile (env, errfile);
2176
2177 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
2178 CODE:
2179 env->set_msgfile (env, msgfile);
2180
2181 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2182 CODE:
2183 RETVAL = env->set_verbose (env, which, onoff);
2184 OUTPUT:
2185 RETVAL
2186
2187 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2188 CODE:
2189 RETVAL = env->set_encrypt (env, password, flags);
2190 OUTPUT:
2191 RETVAL
2192
2193 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2194 CODE:
2195 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2196 OUTPUT:
2197 RETVAL
2198
2199 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2200 CODE:
2201 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2202 OUTPUT:
2203 RETVAL
2204
2205 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2206 CODE:
2207 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2208 OUTPUT:
2209 RETVAL
2210
2211 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2212 CODE:
2213 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2214 OUTPUT:
2215 RETVAL
2216
2217 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2218 CODE:
2219 RETVAL = env->set_lk_detect (env, detect);
2220 OUTPUT:
2221 RETVAL
2222
2223 int set_lk_max_lockers (DB_ENV *env, U32 max)
2224 CODE:
2225 RETVAL = env->set_lk_max_lockers (env, max);
2226 OUTPUT:
2227 RETVAL
2228
2229 int set_lk_max_locks (DB_ENV *env, U32 max)
2230 CODE:
2231 RETVAL = env->set_lk_max_locks (env, max);
2232 OUTPUT:
2233 RETVAL
2234
2235 int set_lk_max_objects (DB_ENV *env, U32 max)
2236 CODE:
2237 RETVAL = env->set_lk_max_objects (env, max);
2238 OUTPUT:
2239 RETVAL
2240
2241 int set_lg_bsize (DB_ENV *env, U32 max)
2242 CODE:
2243 RETVAL = env->set_lg_bsize (env, max);
2244 OUTPUT:
2245 RETVAL
2246
2247 int set_lg_max (DB_ENV *env, U32 max)
2248 CODE:
2249 RETVAL = env->set_lg_max (env, max);
2250 OUTPUT:
2251 RETVAL
2252
2253 #if DB_VERSION_MINOR >= 4
2254
2255 int mutex_set_max (DB_ENV *env, U32 max)
2256 CODE:
2257 RETVAL = env->mutex_set_max (env, max);
2258 OUTPUT:
2259 RETVAL
2260
2261 int mutex_set_increment (DB_ENV *env, U32 increment)
2262 CODE:
2263 RETVAL = env->mutex_set_increment (env, increment);
2264 OUTPUT:
2265 RETVAL
2266
2267 int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2268 CODE:
2269 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2270 OUTPUT:
2271 RETVAL
2272
2273 int mutex_set_align (DB_ENV *env, U32 align)
2274 CODE:
2275 RETVAL = env->mutex_set_align (env, align);
2276 OUTPUT:
2277 RETVAL
2278
2279 #endif
2280
2281 DB_TXN *
2282 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2283 CODE:
2284 errno = env->txn_begin (env, parent, &RETVAL, flags);
2285 if (errno)
2286 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2287 OUTPUT:
2288 RETVAL
2289
2290 #if DB_VERSION_MINOR >= 5
2291
2292 DB_TXN *
2293 cdsgroup_begin (DB_ENV *env)
2294 CODE:
2295 errno = env->cdsgroup_begin (env, &RETVAL);
2296 if (errno)
2297 croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
2298 OUTPUT:
2299 RETVAL
2300
2301 #endif
2302
2303 MODULE = BDB PACKAGE = BDB::Db
2304
2305 void
2306 DESTROY (DB_ornuked *db)
2307 CODE:
2308 if (db)
2309 {
2310 SV *env = (SV *)db->app_private;
2311 db->close (db, 0);
2312 SvREFCNT_dec (env);
2313 }
2314
2315 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2316 CODE:
2317 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2318 OUTPUT:
2319 RETVAL
2320
2321 int set_pagesize (DB *db, U32 pagesize)
2322 CODE:
2323 RETVAL = db->set_pagesize (db, pagesize);
2324 OUTPUT:
2325 RETVAL
2326
2327 int set_flags (DB *db, U32 flags)
2328 CODE:
2329 RETVAL = db->set_flags (db, flags);
2330 OUTPUT:
2331 RETVAL
2332
2333 int set_encrypt (DB *db, const char *password, U32 flags)
2334 CODE:
2335 RETVAL = db->set_encrypt (db, password, flags);
2336 OUTPUT:
2337 RETVAL
2338
2339 int set_lorder (DB *db, int lorder)
2340 CODE:
2341 RETVAL = db->set_lorder (db, lorder);
2342 OUTPUT:
2343 RETVAL
2344
2345 int set_bt_minkey (DB *db, U32 minkey)
2346 CODE:
2347 RETVAL = db->set_bt_minkey (db, minkey);
2348 OUTPUT:
2349 RETVAL
2350
2351 int set_re_delim (DB *db, int delim)
2352 CODE:
2353 RETVAL = db->set_re_delim (db, delim);
2354 OUTPUT:
2355 RETVAL
2356
2357 int set_re_pad (DB *db, int re_pad)
2358 CODE:
2359 RETVAL = db->set_re_pad (db, re_pad);
2360 OUTPUT:
2361 RETVAL
2362
2363 int set_re_source (DB *db, char *source)
2364 CODE:
2365 RETVAL = db->set_re_source (db, source);
2366 OUTPUT:
2367 RETVAL
2368
2369 int set_re_len (DB *db, U32 re_len)
2370 CODE:
2371 RETVAL = db->set_re_len (db, re_len);
2372 OUTPUT:
2373 RETVAL
2374
2375 int set_h_ffactor (DB *db, U32 h_ffactor)
2376 CODE:
2377 RETVAL = db->set_h_ffactor (db, h_ffactor);
2378 OUTPUT:
2379 RETVAL
2380
2381 int set_h_nelem (DB *db, U32 h_nelem)
2382 CODE:
2383 RETVAL = db->set_h_nelem (db, h_nelem);
2384 OUTPUT:
2385 RETVAL
2386
2387 int set_q_extentsize (DB *db, U32 extentsize)
2388 CODE:
2389 RETVAL = db->set_q_extentsize (db, extentsize);
2390 OUTPUT:
2391 RETVAL
2392
2393 DBC *
2394 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2395 CODE:
2396 errno = db->cursor (db, txn, &RETVAL, flags);
2397 if (errno)
2398 croak ("DB->cursor: %s", db_strerror (errno));
2399 OUTPUT:
2400 RETVAL
2401
2402 #if DB_VERSION_MINOR >= 3
2403
2404 DB_SEQUENCE *
2405 sequence (DB *db, U32 flags = 0)
2406 CODE:
2407 {
2408 errno = db_sequence_create (&RETVAL, db, flags);
2409 if (errno)
2410 croak ("db_sequence_create: %s", db_strerror (errno));
2411 }
2412 OUTPUT:
2413 RETVAL
2414
2415 #endif
2416
2417
2418 MODULE = BDB PACKAGE = BDB::Txn
2419
2420 void
2421 DESTROY (DB_TXN_ornuked *txn)
2422 CODE:
2423 if (txn)
2424 txn->abort (txn);
2425
2426 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2427 CODE:
2428 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2429 OUTPUT:
2430 RETVAL
2431
2432 int failed (DB_TXN *txn)
2433 CODE:
2434 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2435 OUTPUT:
2436 RETVAL
2437
2438
2439 MODULE = BDB PACKAGE = BDB::Cursor
2440
2441 void
2442 DESTROY (DBC_ornuked *dbc)
2443 CODE:
2444 if (dbc)
2445 dbc->c_close (dbc);
2446
2447 #if DB_VERSION_MINOR >= 6
2448
2449 int set_priority (DBC *dbc, int priority)
2450 CODE:
2451 dbc->set_priority (dbc, priority);
2452
2453 #endif
2454
2455 #if DB_VERSION_MINOR >= 3
2456
2457 MODULE = BDB PACKAGE = BDB::Sequence
2458
2459 void
2460 DESTROY (DB_SEQUENCE_ornuked *seq)
2461 CODE:
2462 if (seq)
2463 seq->close (seq, 0);
2464
2465 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2466 CODE:
2467 RETVAL = seq->initial_value (seq, value);
2468 OUTPUT:
2469 RETVAL
2470
2471 int set_cachesize (DB_SEQUENCE *seq, U32 size)
2472 CODE:
2473 RETVAL = seq->set_cachesize (seq, size);
2474 OUTPUT:
2475 RETVAL
2476
2477 int set_flags (DB_SEQUENCE *seq, U32 flags)
2478 CODE:
2479 RETVAL = seq->set_flags (seq, flags);
2480 OUTPUT:
2481 RETVAL
2482
2483 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2484 CODE:
2485 RETVAL = seq->set_range (seq, min, max);
2486 OUTPUT:
2487 RETVAL
2488
2489 #endif
2490
2491