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/cvs/BDB/BDB.xs
Revision: 1.45
Committed: Wed Jul 9 21:08:29 2008 UTC (15 years, 10 months ago) by root
Branch: MAIN
Changes since 1.44: +19 -1 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include "xthread.h"
2
3 #include <errno.h>
4
5 #include "EXTERN.h"
6 #include "perl.h"
7 #include "XSUB.h"
8
9 // perl stupidly defines these as macros, breaking
10 // lots and lots of code.
11 #undef open
12 #undef close
13 #undef abort
14 #undef malloc
15 #undef free
16 #undef send
17
18 #include <stddef.h>
19 #include <stdlib.h>
20 #include <errno.h>
21 #include <sys/types.h>
22 #include <limits.h>
23 #include <fcntl.h>
24
25 #ifndef _WIN32
26 # include <sys/time.h>
27 # include <unistd.h>
28 #endif
29
30 #include <db.h>
31
32 #if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
33 # error you need Berkeley DB 4.4 or newer installed
34 #endif
35
36 /* number of seconds after which idle threads exit */
37 #define IDLE_TIMEOUT 10
38
39 typedef DB_ENV DB_ENV_ornull;
40 typedef DB_TXN DB_TXN_ornull;
41 typedef DBC DBC_ornull;
42 typedef DB DB_ornull;
43 typedef DB_SEQUENCE DB_SEQUENCE_ornull;
44
45 typedef DB_ENV DB_ENV_ornuked;
46 typedef DB_TXN DB_TXN_ornuked;
47 typedef DBC DBC_ornuked;
48 typedef DB DB_ornuked;
49 typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
50
51 typedef SV SV8; /* byte-sv, used for argument-checking */
52 typedef char *bdb_filename;
53
54 static SV *prepare_cb;
55
56 #if DB_VERSION_MINOR >= 6
57 # define c_close close
58 # define c_count count
59 # define c_del del
60 # define c_dup dup
61 # define c_get get
62 # define c_pget pget
63 # define c_put put
64 #endif
65
66 static char *
67 get_bdb_filename (SV *sv)
68 {
69 if (!SvOK (sv))
70 return 0;
71
72 #if _WIN32
73 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
74 {
75 STRLEN len;
76 char *src = SvPVbyte (sv, len);
77 SV *t1 = sv_newmortal ();
78 SV *t2 = sv_newmortal ();
79
80 sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
81 sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
82
83 len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
84 len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
85 SvPOK_only (t2);
86 SvPVX (t2)[len] = 0;
87 SvCUR_set (t2, len);
88
89 return SvPVX (t2);
90 }
91 #else
92 return SvPVbyte_nolen (sv);
93 #endif
94 }
95
96 static void
97 debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
98 {
99 printf ("err[%s]\n", msg);
100 }
101
102 static void
103 debug_msgcall (const DB_ENV *dbenv, const char *msg)
104 {
105 printf ("msg[%s]\n", msg);
106 }
107
108 static char *
109 strdup_ornull (const char *s)
110 {
111 return s ? strdup (s) : 0;
112 }
113
114 static void
115 sv_to_dbt (DBT *dbt, SV *sv)
116 {
117 STRLEN len;
118 char *data = SvPVbyte (sv, len);
119
120 dbt->data = malloc (len);
121 memcpy (dbt->data, data, len);
122 dbt->size = len;
123 dbt->flags = DB_DBT_REALLOC;
124 }
125
126 static void
127 dbt_to_sv (SV *sv, DBT *dbt)
128 {
129 if (sv)
130 {
131 SvREADONLY_off (sv);
132 sv_setpvn_mg (sv, dbt->data, dbt->size);
133 SvREFCNT_dec (sv);
134 }
135
136 free (dbt->data);
137 }
138
139 enum {
140 REQ_QUIT,
141 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
142 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
143 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
144 REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
145 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
146 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
147 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
148 };
149
150 typedef struct bdb_cb
151 {
152 struct bdb_cb *volatile next;
153 SV *callback;
154 int type, pri, result;
155
156 DB_ENV *env;
157 DB *db;
158 DB_TXN *txn;
159 DBC *dbc;
160
161 UV uv1;
162 int int1, int2;
163 U32 uint1, uint2;
164 char *buf1, *buf2, *buf3;
165 SV *sv1, *sv2, *sv3;
166
167 DBT dbt1, dbt2, dbt3;
168 DB_KEY_RANGE key_range;
169 DB_SEQUENCE *seq;
170 db_seq_t seq_t;
171 } bdb_cb;
172
173 typedef bdb_cb *bdb_req;
174
175 enum {
176 PRI_MIN = -4,
177 PRI_MAX = 4,
178
179 DEFAULT_PRI = 0,
180 PRI_BIAS = -PRI_MIN,
181 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
182 };
183
184 #define AIO_TICKS ((1000000 + 1023) >> 10)
185
186 static SV *on_next_submit;
187
188 static unsigned int max_poll_time = 0;
189 static unsigned int max_poll_reqs = 0;
190
191 /* calculcate time difference in ~1/AIO_TICKS of a second */
192 static int tvdiff (struct timeval *tv1, struct timeval *tv2)
193 {
194 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
195 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
196 }
197
198 static int next_pri = DEFAULT_PRI + PRI_BIAS;
199
200 static unsigned int started, idle, wanted;
201
202 /* worker threads management */
203 static mutex_t wrklock = X_MUTEX_INIT;
204
205 typedef struct worker {
206 /* locked by wrklock */
207 struct worker *prev, *next;
208
209 thread_t tid;
210
211 /* locked by reslock, reqlock or wrklock */
212 bdb_req req; /* currently processed request */
213 void *dbuf;
214 DIR *dirp;
215 } worker;
216
217 static worker wrk_first = { &wrk_first, &wrk_first, 0 };
218
219 static void worker_clear (worker *wrk)
220 {
221 }
222
223 static void worker_free (worker *wrk)
224 {
225 wrk->next->prev = wrk->prev;
226 wrk->prev->next = wrk->next;
227
228 free (wrk);
229 }
230
231 static volatile unsigned int nreqs, nready, npending;
232 static volatile unsigned int max_idle = 4;
233 static volatile unsigned int max_outstanding = 0xffffffff;
234 static int respipe_osf [2], respipe [2] = { -1, -1 };
235
236 static mutex_t reslock = X_MUTEX_INIT;
237 static mutex_t reqlock = X_MUTEX_INIT;
238 static cond_t reqwait = X_COND_INIT;
239
240 #if WORDACCESS_UNSAFE
241
242 static unsigned int get_nready (void)
243 {
244 unsigned int retval;
245
246 X_LOCK (reqlock);
247 retval = nready;
248 X_UNLOCK (reqlock);
249
250 return retval;
251 }
252
253 static unsigned int get_npending (void)
254 {
255 unsigned int retval;
256
257 X_LOCK (reslock);
258 retval = npending;
259 X_UNLOCK (reslock);
260
261 return retval;
262 }
263
264 static unsigned int get_nthreads (void)
265 {
266 unsigned int retval;
267
268 X_LOCK (wrklock);
269 retval = started;
270 X_UNLOCK (wrklock);
271
272 return retval;
273 }
274
275 #else
276
277 # define get_nready() nready
278 # define get_npending() npending
279 # define get_nthreads() started
280
281 #endif
282
283 /*
284 * a somewhat faster data structure might be nice, but
285 * with 8 priorities this actually needs <20 insns
286 * per shift, the most expensive operation.
287 */
288 typedef struct {
289 bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
290 int size;
291 } reqq;
292
293 static reqq req_queue;
294 static reqq res_queue;
295
296 int reqq_push (reqq *q, bdb_req req)
297 {
298 int pri = req->pri;
299 req->next = 0;
300
301 if (q->qe[pri])
302 {
303 q->qe[pri]->next = req;
304 q->qe[pri] = req;
305 }
306 else
307 q->qe[pri] = q->qs[pri] = req;
308
309 return q->size++;
310 }
311
312 bdb_req reqq_shift (reqq *q)
313 {
314 int pri;
315
316 if (!q->size)
317 return 0;
318
319 --q->size;
320
321 for (pri = NUM_PRI; pri--; )
322 {
323 bdb_req req = q->qs[pri];
324
325 if (req)
326 {
327 if (!(q->qs[pri] = req->next))
328 q->qe[pri] = 0;
329
330 return req;
331 }
332 }
333
334 abort ();
335 }
336
337 static int poll_cb (void);
338 static void req_free (bdb_req req);
339 static void req_cancel (bdb_req req);
340
341 static int req_invoke (bdb_req req)
342 {
343 dSP;
344
345 if (req->callback)
346 {
347 ENTER;
348 SAVETMPS;
349 PUSHMARK (SP);
350
351 switch (req->type)
352 {
353 case REQ_DB_CLOSE:
354 SvREFCNT_dec (req->sv1);
355 break;
356
357 case REQ_DB_GET:
358 case REQ_DB_PGET:
359 dbt_to_sv (req->sv3, &req->dbt3);
360 break;
361
362 case REQ_C_GET:
363 case REQ_C_PGET:
364 dbt_to_sv (req->sv1, &req->dbt1);
365 dbt_to_sv (req->sv2, &req->dbt2);
366 dbt_to_sv (req->sv3, &req->dbt3);
367 break;
368
369 case REQ_DB_PUT:
370 case REQ_C_PUT:
371 dbt_to_sv (0, &req->dbt1);
372 dbt_to_sv (0, &req->dbt2);
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 SvREADONLY_off (req->sv1);
384 sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
385 SvREFCNT_dec (req->sv1);
386 }
387 break;
388
389 case REQ_SEQ_GET:
390 SvREADONLY_off (req->sv1);
391
392 if (sizeof (IV) > 4)
393 sv_setiv_mg (req->sv1, (IV)req->seq_t);
394 else
395 sv_setnv_mg (req->sv1, (NV)req->seq_t);
396
397 SvREFCNT_dec (req->sv1);
398 break;
399 }
400
401 errno = req->result;
402
403 PUTBACK;
404 call_sv (req->callback, G_VOID | G_EVAL);
405 SPAGAIN;
406
407 FREETMPS;
408 LEAVE;
409 }
410
411 return !SvTRUE (ERRSV);
412 }
413
414 static void req_free (bdb_req req)
415 {
416 SvREFCNT_dec (req->callback);
417
418 free (req->buf1);
419 free (req->buf2);
420 free (req->buf3);
421
422 Safefree (req);
423 }
424
425 #ifdef USE_SOCKETS_AS_HANDLES
426 # define TO_SOCKET(x) (win32_get_osfhandle (x))
427 #else
428 # define TO_SOCKET(x) (x)
429 #endif
430
431 static void
432 create_respipe (void)
433 {
434 #ifdef _WIN32
435 int arg; /* argg */
436 #endif
437 int old_readfd = respipe [0];
438
439 if (respipe [1] >= 0)
440 respipe_close (TO_SOCKET (respipe [1]));
441
442 #ifdef _WIN32
443 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
444 #else
445 if (pipe (respipe))
446 #endif
447 croak ("unable to initialize result pipe");
448
449 if (old_readfd >= 0)
450 {
451 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
452 croak ("unable to initialize result pipe(2)");
453
454 respipe_close (respipe [0]);
455 respipe [0] = old_readfd;
456 }
457
458 #ifdef _WIN32
459 arg = 1;
460 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
461 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
462 #else
463 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
464 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
465 #endif
466 croak ("unable to initialize result pipe(3)");
467
468 respipe_osf [0] = TO_SOCKET (respipe [0]);
469 respipe_osf [1] = TO_SOCKET (respipe [1]);
470 }
471
472 X_THREAD_PROC (bdb_proc);
473
474 static void start_thread (void)
475 {
476 worker *wrk = calloc (1, sizeof (worker));
477
478 if (!wrk)
479 croak ("unable to allocate worker thread data");
480
481 X_LOCK (wrklock);
482 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
483 {
484 wrk->prev = &wrk_first;
485 wrk->next = wrk_first.next;
486 wrk_first.next->prev = wrk;
487 wrk_first.next = wrk;
488 ++started;
489 }
490 else
491 free (wrk);
492
493 X_UNLOCK (wrklock);
494 }
495
496 static void maybe_start_thread (void)
497 {
498 if (get_nthreads () >= wanted)
499 return;
500
501 /* todo: maybe use idle here, but might be less exact */
502 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
503 return;
504
505 start_thread ();
506 }
507
508 static void req_send (bdb_req req)
509 {
510 SV *wait_callback = 0;
511
512 if (on_next_submit)
513 {
514 dSP;
515 SV *cb = sv_2mortal (on_next_submit);
516
517 on_next_submit = 0;
518
519 PUSHMARK (SP);
520 PUTBACK;
521 call_sv (cb, G_DISCARD | G_EVAL);
522 }
523
524 // synthesize callback if none given
525 if (!req->callback)
526 {
527 int count;
528
529 dSP;
530 PUSHMARK (SP);
531 PUTBACK;
532 count = call_sv (prepare_cb, G_ARRAY);
533 SPAGAIN;
534
535 if (count != 2)
536 croak ("prepare callback must return exactly two values\n");
537
538 wait_callback = POPs;
539 SvREFCNT_dec (req->callback);
540 req->callback = SvREFCNT_inc (POPs);
541 }
542
543 ++nreqs;
544
545 X_LOCK (reqlock);
546 ++nready;
547 reqq_push (&req_queue, req);
548 X_COND_SIGNAL (reqwait);
549 X_UNLOCK (reqlock);
550
551 maybe_start_thread ();
552
553 if (wait_callback)
554 {
555 dSP;
556 PUSHMARK (SP);
557 PUTBACK;
558 call_sv (wait_callback, G_DISCARD);
559 }
560 }
561
562 static void end_thread (void)
563 {
564 bdb_req req;
565
566 Newz (0, req, 1, bdb_cb);
567
568 req->type = REQ_QUIT;
569 req->pri = PRI_MAX + PRI_BIAS;
570
571 X_LOCK (reqlock);
572 reqq_push (&req_queue, req);
573 X_COND_SIGNAL (reqwait);
574 X_UNLOCK (reqlock);
575
576 X_LOCK (wrklock);
577 --started;
578 X_UNLOCK (wrklock);
579 }
580
581 static void set_max_idle (int nthreads)
582 {
583 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
584 max_idle = nthreads <= 0 ? 1 : nthreads;
585 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
586 }
587
588 static void min_parallel (int nthreads)
589 {
590 if (wanted < nthreads)
591 wanted = nthreads;
592 }
593
594 static void max_parallel (int nthreads)
595 {
596 if (wanted > nthreads)
597 wanted = nthreads;
598
599 while (started > wanted)
600 end_thread ();
601 }
602
603 static void poll_wait (void)
604 {
605 fd_set rfd;
606
607 while (nreqs)
608 {
609 int size;
610 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
611 size = res_queue.size;
612 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
613
614 if (size)
615 return;
616
617 maybe_start_thread ();
618
619 FD_ZERO (&rfd);
620 FD_SET (respipe [0], &rfd);
621
622 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
623 }
624 }
625
626 static int poll_cb (void)
627 {
628 dSP;
629 int count = 0;
630 int maxreqs = max_poll_reqs;
631 int do_croak = 0;
632 struct timeval tv_start, tv_now;
633 bdb_req req;
634
635 if (max_poll_time)
636 gettimeofday (&tv_start, 0);
637
638 for (;;)
639 {
640 for (;;)
641 {
642 maybe_start_thread ();
643
644 X_LOCK (reslock);
645 req = reqq_shift (&res_queue);
646
647 if (req)
648 {
649 --npending;
650
651 if (!res_queue.size)
652 {
653 /* read any signals sent by the worker threads */
654 char buf [4];
655 while (respipe_read (respipe [0], buf, 4) == 4)
656 ;
657 }
658 }
659
660 X_UNLOCK (reslock);
661
662 if (!req)
663 break;
664
665 --nreqs;
666
667 if (!req_invoke (req))
668 {
669 req_free (req);
670 croak (0);
671 }
672
673 count++;
674
675 req_free (req);
676
677 if (maxreqs && !--maxreqs)
678 break;
679
680 if (max_poll_time)
681 {
682 gettimeofday (&tv_now, 0);
683
684 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
685 break;
686 }
687 }
688
689 if (nreqs <= max_outstanding)
690 break;
691
692 poll_wait ();
693
694 ++maxreqs;
695 }
696
697 return count;
698 }
699
700 /*****************************************************************************/
701
702 X_THREAD_PROC (bdb_proc)
703 {
704 bdb_req req;
705 struct timespec ts;
706 worker *self = (worker *)thr_arg;
707
708 /* try to distribute timeouts somewhat evenly */
709 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
710
711 for (;;)
712 {
713 ts.tv_sec = time (0) + IDLE_TIMEOUT;
714
715 X_LOCK (reqlock);
716
717 for (;;)
718 {
719 self->req = req = reqq_shift (&req_queue);
720
721 if (req)
722 break;
723
724 ++idle;
725
726 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
727 == ETIMEDOUT)
728 {
729 if (idle > max_idle)
730 {
731 --idle;
732 X_UNLOCK (reqlock);
733 X_LOCK (wrklock);
734 --started;
735 X_UNLOCK (wrklock);
736 goto quit;
737 }
738
739 /* we are allowed to idle, so do so without any timeout */
740 X_COND_WAIT (reqwait, reqlock);
741 ts.tv_sec = time (0) + IDLE_TIMEOUT;
742 }
743
744 --idle;
745 }
746
747 --nready;
748
749 X_UNLOCK (reqlock);
750
751 switch (req->type)
752 {
753 case REQ_QUIT:
754 req->result = ENOSYS;
755 goto quit;
756
757 case REQ_ENV_OPEN:
758 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
759 break;
760
761 case REQ_ENV_CLOSE:
762 req->result = req->env->close (req->env, req->uint1);
763 break;
764
765 case REQ_ENV_TXN_CHECKPOINT:
766 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
767 break;
768
769 case REQ_ENV_LOCK_DETECT:
770 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
771 break;
772
773 case REQ_ENV_MEMP_SYNC:
774 req->result = req->env->memp_sync (req->env, 0);
775 break;
776
777 case REQ_ENV_MEMP_TRICKLE:
778 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
779 break;
780
781 case REQ_ENV_DBREMOVE:
782 req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
783 break;
784
785 case REQ_ENV_DBRENAME:
786 req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
787 break;
788
789 case REQ_DB_OPEN:
790 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
791 break;
792
793 case REQ_DB_CLOSE:
794 req->result = req->db->close (req->db, req->uint1);
795 break;
796
797 case REQ_DB_COMPACT:
798 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
799 break;
800
801 case REQ_DB_SYNC:
802 req->result = req->db->sync (req->db, req->uint1);
803 break;
804
805 case REQ_DB_UPGRADE:
806 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
807 break;
808
809 case REQ_DB_PUT:
810 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
811 break;
812
813 case REQ_DB_EXISTS:
814 req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
815 break;
816
817 case REQ_DB_GET:
818 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
819 break;
820
821 case REQ_DB_PGET:
822 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
823 break;
824
825 case REQ_DB_DEL:
826 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
827 break;
828
829 case REQ_DB_KEY_RANGE:
830 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
831 break;
832
833 case REQ_TXN_COMMIT:
834 req->result = req->txn->commit (req->txn, req->uint1);
835 break;
836
837 case REQ_TXN_ABORT:
838 req->result = req->txn->abort (req->txn);
839 break;
840
841 case REQ_TXN_FINISH:
842 if (req->txn->flags & TXN_DEADLOCK)
843 {
844 req->result = req->txn->abort (req->txn);
845 if (!req->result)
846 req->result = DB_LOCK_DEADLOCK;
847 }
848 else
849 req->result = req->txn->commit (req->txn, req->uint1);
850 break;
851
852 case REQ_C_CLOSE:
853 req->result = req->dbc->c_close (req->dbc);
854 break;
855
856 case REQ_C_COUNT:
857 {
858 db_recno_t recno;
859 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
860 req->uv1 = recno;
861 }
862 break;
863
864 case REQ_C_PUT:
865 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
866 break;
867
868 case REQ_C_GET:
869 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
870 break;
871
872 case REQ_C_PGET:
873 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
874 break;
875
876 case REQ_C_DEL:
877 req->result = req->dbc->c_del (req->dbc, req->uint1);
878 break;
879
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
896 default:
897 req->result = ENOSYS;
898 break;
899 }
900
901 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
902 req->txn->flags |= TXN_DEADLOCK;
903
904 X_LOCK (reslock);
905
906 ++npending;
907
908 if (!reqq_push (&res_queue, req))
909 /* write a dummy byte to the pipe so fh becomes ready */
910 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
911
912 self->req = 0;
913 worker_clear (self);
914
915 X_UNLOCK (reslock);
916 }
917
918 quit:
919 X_LOCK (wrklock);
920 worker_free (self);
921 X_UNLOCK (wrklock);
922
923 return 0;
924 }
925
926 /*****************************************************************************/
927
928 static void atfork_prepare (void)
929 {
930 X_LOCK (wrklock);
931 X_LOCK (reqlock);
932 X_LOCK (reslock);
933 }
934
935 static void atfork_parent (void)
936 {
937 X_UNLOCK (reslock);
938 X_UNLOCK (reqlock);
939 X_UNLOCK (wrklock);
940 }
941
942 static void atfork_child (void)
943 {
944 bdb_req prv;
945
946 while (prv = reqq_shift (&req_queue))
947 req_free (prv);
948
949 while (prv = reqq_shift (&res_queue))
950 req_free (prv);
951
952 while (wrk_first.next != &wrk_first)
953 {
954 worker *wrk = wrk_first.next;
955
956 if (wrk->req)
957 req_free (wrk->req);
958
959 worker_clear (wrk);
960 worker_free (wrk);
961 }
962
963 started = 0;
964 idle = 0;
965 nreqs = 0;
966 nready = 0;
967 npending = 0;
968
969 create_respipe ();
970
971 atfork_parent ();
972 }
973
974 #define dREQ(reqtype) \
975 bdb_req req; \
976 int req_pri = next_pri; \
977 next_pri = DEFAULT_PRI + PRI_BIAS; \
978 \
979 if (callback && SvOK (callback)) \
980 croak ("callback has illegal type or extra arguments"); \
981 \
982 Newz (0, req, 1, bdb_cb); \
983 if (!req) \
984 croak ("out of memory during bdb_req allocation"); \
985 \
986 req->callback = cb ? SvREFCNT_inc (cb) : 0; \
987 req->type = (reqtype); \
988 req->pri = req_pri
989
990 #define REQ_SEND \
991 req_send (req)
992
993 #define SvPTR(var, arg, type, class, nullok) \
994 if (!SvOK (arg)) \
995 { \
996 if (nullok != 1) \
997 croak (# var " must be a " # class " object, not undef"); \
998 \
999 (var) = 0; \
1000 } \
1001 else if (sv_derived_from ((arg), # class)) \
1002 { \
1003 IV tmp = SvIV ((SV*) SvRV (arg)); \
1004 (var) = INT2PTR (type, tmp); \
1005 if (!var && nullok != 2) \
1006 croak (# var " is not a valid " # class " object anymore"); \
1007 } \
1008 else \
1009 croak (# var " is not of type " # class);
1010
1011 static void
1012 ptr_nuke (SV *sv)
1013 {
1014 assert (SvROK (sv));
1015 sv_setiv (SvRV (sv), 0);
1016 }
1017
1018 static int
1019 errno_get (pTHX_ SV *sv, MAGIC *mg)
1020 {
1021 if (*mg->mg_ptr == '!') // should always be the case
1022 if (-30999 <= errno && errno <= -30800)
1023 {
1024 sv_setnv (sv, (NV)errno);
1025 sv_setpv (sv, db_strerror (errno));
1026 SvNOK_on (sv); /* what a wonderful hack! */
1027 // ^^^ copied from perl sources
1028 return 0;
1029 }
1030
1031 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1032 }
1033
1034 static MGVTBL vtbl_errno;
1035
1036 // this wonderful hack :( patches perl's $! variable to support our errno values
1037 static void
1038 patch_errno (void)
1039 {
1040 SV *sv;
1041 MAGIC *mg;
1042
1043 if (!(sv = get_sv ("!", 1)))
1044 return;
1045
1046 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1047 return;
1048
1049 if (mg->mg_virtual != &PL_vtbl_sv)
1050 return;
1051
1052 vtbl_errno = PL_vtbl_sv;
1053 vtbl_errno.svt_get = errno_get;
1054 mg->mg_virtual = &vtbl_errno;
1055 }
1056
1057 #if __GNUC__ >= 4
1058 # define noinline __attribute__ ((noinline))
1059 #else
1060 # define noinline
1061 #endif
1062
1063 static noinline SV *
1064 pop_callback (I32 *ritems, SV *sv)
1065 {
1066 if (SvROK (sv))
1067 {
1068 HV *st;
1069 GV *gvp;
1070 CV *cv;
1071 const char *name;
1072
1073 /* forgive me */
1074 if (SvTYPE (SvRV (sv)) == SVt_PVMG
1075 && (st = SvSTASH (SvRV (sv)))
1076 && (name = HvNAME_get (st))
1077 && (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
1078 return 0;
1079
1080 if ((cv = sv_2cv (sv, &st, &gvp, 0)))
1081 {
1082 --*ritems;
1083 return (SV *)cv;
1084 }
1085 }
1086
1087 return 0;
1088 }
1089
1090 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1091
1092 MODULE = BDB PACKAGE = BDB
1093
1094 PROTOTYPES: ENABLE
1095
1096 BOOT:
1097 {
1098 HV *stash = gv_stashpv ("BDB", 1);
1099
1100 static const struct {
1101 const char *name;
1102 IV iv;
1103 } *civ, const_iv[] = {
1104 #define const_iv(name) { # name, (IV)DB_ ## name },
1105 const_iv (RPCCLIENT)
1106 const_iv (INIT_CDB)
1107 const_iv (INIT_LOCK)
1108 const_iv (INIT_LOG)
1109 const_iv (INIT_MPOOL)
1110 const_iv (INIT_REP)
1111 const_iv (INIT_TXN)
1112 const_iv (RECOVER)
1113 const_iv (INIT_TXN)
1114 const_iv (RECOVER_FATAL)
1115 const_iv (CREATE)
1116 const_iv (RDONLY)
1117 const_iv (USE_ENVIRON)
1118 const_iv (USE_ENVIRON_ROOT)
1119 const_iv (LOCKDOWN)
1120 const_iv (PRIVATE)
1121 const_iv (REGISTER)
1122 const_iv (SYSTEM_MEM)
1123 const_iv (AUTO_COMMIT)
1124 const_iv (CDB_ALLDB)
1125 const_iv (DIRECT_DB)
1126 const_iv (DSYNC_DB)
1127 const_iv (NOLOCKING)
1128 const_iv (NOMMAP)
1129 const_iv (NOPANIC)
1130 const_iv (OVERWRITE)
1131 const_iv (PANIC_ENVIRONMENT)
1132 const_iv (REGION_INIT)
1133 const_iv (TIME_NOTGRANTED)
1134 const_iv (TXN_NOSYNC)
1135 const_iv (TXN_NOT_DURABLE)
1136 const_iv (TXN_WRITE_NOSYNC)
1137 const_iv (WRITECURSOR)
1138 const_iv (YIELDCPU)
1139 const_iv (ENCRYPT_AES)
1140 const_iv (XA_CREATE)
1141 const_iv (BTREE)
1142 const_iv (HASH)
1143 const_iv (QUEUE)
1144 const_iv (RECNO)
1145 const_iv (UNKNOWN)
1146 const_iv (EXCL)
1147 const_iv (READ_COMMITTED)
1148 const_iv (READ_UNCOMMITTED)
1149 const_iv (TRUNCATE)
1150 const_iv (NOSYNC)
1151 const_iv (CHKSUM)
1152 const_iv (ENCRYPT)
1153 const_iv (DUP)
1154 const_iv (DUPSORT)
1155 const_iv (RECNUM)
1156 const_iv (RENUMBER)
1157 const_iv (REVSPLITOFF)
1158 const_iv (INORDER)
1159 const_iv (CONSUME)
1160 const_iv (CONSUME_WAIT)
1161 const_iv (GET_BOTH)
1162 const_iv (GET_BOTH_RANGE)
1163 //const_iv (SET_RECNO)
1164 //const_iv (MULTIPLE)
1165 const_iv (SNAPSHOT)
1166 const_iv (JOIN_ITEM)
1167 const_iv (JOIN_NOSORT)
1168 const_iv (RMW)
1169
1170 const_iv (NOTFOUND)
1171 const_iv (KEYEMPTY)
1172 const_iv (LOCK_DEADLOCK)
1173 const_iv (LOCK_NOTGRANTED)
1174 const_iv (RUNRECOVERY)
1175 const_iv (OLD_VERSION)
1176 const_iv (REP_HANDLE_DEAD)
1177 const_iv (REP_LOCKOUT)
1178 const_iv (SECONDARY_BAD)
1179
1180 const_iv (FREE_SPACE)
1181 const_iv (FREELIST_ONLY)
1182
1183 const_iv (APPEND)
1184 const_iv (NODUPDATA)
1185 const_iv (NOOVERWRITE)
1186
1187 const_iv (TXN_NOWAIT)
1188 const_iv (TXN_SYNC)
1189
1190 const_iv (SET_LOCK_TIMEOUT)
1191 const_iv (SET_TXN_TIMEOUT)
1192
1193 const_iv (FIRST)
1194 const_iv (NEXT)
1195 const_iv (NEXT_DUP)
1196 const_iv (NEXT_NODUP)
1197 const_iv (PREV)
1198 const_iv (PREV_NODUP)
1199 const_iv (SET)
1200 const_iv (SET_RANGE)
1201 const_iv (LAST)
1202 const_iv (BEFORE)
1203 const_iv (AFTER)
1204 const_iv (CURRENT)
1205 const_iv (KEYFIRST)
1206 const_iv (KEYLAST)
1207 const_iv (NODUPDATA)
1208
1209 const_iv (FORCE)
1210
1211 const_iv (LOCK_DEFAULT)
1212 const_iv (LOCK_EXPIRE)
1213 const_iv (LOCK_MAXLOCKS)
1214 const_iv (LOCK_MAXWRITE)
1215 const_iv (LOCK_MINLOCKS)
1216 const_iv (LOCK_MINWRITE)
1217 const_iv (LOCK_OLDEST)
1218 const_iv (LOCK_RANDOM)
1219 const_iv (LOCK_YOUNGEST)
1220
1221 const_iv (SEQ_DEC)
1222 const_iv (SEQ_INC)
1223 const_iv (SEQ_WRAP)
1224
1225 const_iv (BUFFER_SMALL)
1226 const_iv (DONOTINDEX)
1227 const_iv (KEYEMPTY )
1228 const_iv (KEYEXIST )
1229 const_iv (LOCK_DEADLOCK)
1230 const_iv (LOCK_NOTGRANTED)
1231 const_iv (LOG_BUFFER_FULL)
1232 const_iv (NOSERVER)
1233 const_iv (NOSERVER_HOME)
1234 const_iv (NOSERVER_ID)
1235 const_iv (NOTFOUND)
1236 const_iv (PAGE_NOTFOUND)
1237 const_iv (REP_DUPMASTER)
1238 const_iv (REP_HANDLE_DEAD)
1239 const_iv (REP_HOLDELECTION)
1240 const_iv (REP_IGNORE)
1241 const_iv (REP_ISPERM)
1242 const_iv (REP_JOIN_FAILURE)
1243 const_iv (REP_LOCKOUT)
1244 const_iv (REP_NEWMASTER)
1245 const_iv (REP_NEWSITE)
1246 const_iv (REP_NOTPERM)
1247 const_iv (REP_UNAVAIL)
1248 const_iv (RUNRECOVERY)
1249 const_iv (SECONDARY_BAD)
1250 const_iv (VERIFY_BAD)
1251 const_iv (VERSION_MISMATCH)
1252
1253 const_iv (VERB_DEADLOCK)
1254 const_iv (VERB_RECOVERY)
1255 const_iv (VERB_REGISTER)
1256 const_iv (VERB_REPLICATION)
1257 const_iv (VERB_WAITSFOR)
1258
1259 const_iv (VERSION_MAJOR)
1260 const_iv (VERSION_MINOR)
1261 const_iv (VERSION_PATCH)
1262 #if DB_VERSION_MINOR >= 5
1263 const_iv (MULTIVERSION)
1264 const_iv (TXN_SNAPSHOT)
1265 #endif
1266 #if DB_VERSION_MINOR >= 6
1267 const_iv (PREV_DUP)
1268 const_iv (PRIORITY_UNCHANGED)
1269 const_iv (PRIORITY_VERY_LOW)
1270 const_iv (PRIORITY_LOW)
1271 const_iv (PRIORITY_DEFAULT)
1272 const_iv (PRIORITY_HIGH)
1273 const_iv (PRIORITY_VERY_HIGH)
1274 #endif
1275 #if DB_VERSION_MINOR >= 7
1276 const_iv (LOG_DIRECT)
1277 const_iv (LOG_DSYNC)
1278 const_iv (LOG_AUTO_REMOVE)
1279 const_iv (LOG_IN_MEMORY)
1280 const_iv (LOG_ZERO)
1281 #else
1282 const_iv (DIRECT_LOG)
1283 const_iv (DSYNC_LOG)
1284 const_iv (LOG_AUTOREMOVE)
1285 const_iv (LOG_INMEMORY)
1286 #endif
1287 };
1288
1289 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1290 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1291
1292 {
1293 /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1294 char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1295
1296 newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1297 }
1298
1299 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1300
1301 create_respipe ();
1302
1303 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1304 patch_errno ();
1305 }
1306
1307 void
1308 max_poll_reqs (int nreqs)
1309 PROTOTYPE: $
1310 CODE:
1311 max_poll_reqs = nreqs;
1312
1313 void
1314 max_poll_time (double nseconds)
1315 PROTOTYPE: $
1316 CODE:
1317 max_poll_time = nseconds * AIO_TICKS;
1318
1319 void
1320 min_parallel (int nthreads)
1321 PROTOTYPE: $
1322
1323 void
1324 max_parallel (int nthreads)
1325 PROTOTYPE: $
1326
1327 void
1328 max_idle (int nthreads)
1329 PROTOTYPE: $
1330 CODE:
1331 set_max_idle (nthreads);
1332
1333 int
1334 max_outstanding (int maxreqs)
1335 PROTOTYPE: $
1336 CODE:
1337 RETVAL = max_outstanding;
1338 max_outstanding = maxreqs;
1339 OUTPUT:
1340 RETVAL
1341
1342 int
1343 dbreq_pri (int pri = 0)
1344 PROTOTYPE: ;$
1345 CODE:
1346 RETVAL = next_pri - PRI_BIAS;
1347 if (items > 0)
1348 {
1349 if (pri < PRI_MIN) pri = PRI_MIN;
1350 if (pri > PRI_MAX) pri = PRI_MAX;
1351 next_pri = pri + PRI_BIAS;
1352 }
1353 OUTPUT:
1354 RETVAL
1355
1356 void
1357 dbreq_nice (int nice = 0)
1358 CODE:
1359 nice = next_pri - nice;
1360 if (nice < PRI_MIN) nice = PRI_MIN;
1361 if (nice > PRI_MAX) nice = PRI_MAX;
1362 next_pri = nice + PRI_BIAS;
1363
1364 void
1365 flush ()
1366 PROTOTYPE:
1367 CODE:
1368 while (nreqs)
1369 {
1370 poll_wait ();
1371 poll_cb ();
1372 }
1373
1374 int
1375 poll ()
1376 PROTOTYPE:
1377 CODE:
1378 poll_wait ();
1379 RETVAL = poll_cb ();
1380 OUTPUT:
1381 RETVAL
1382
1383 int
1384 poll_fileno ()
1385 PROTOTYPE:
1386 CODE:
1387 RETVAL = respipe [0];
1388 OUTPUT:
1389 RETVAL
1390
1391 int
1392 poll_cb (...)
1393 PROTOTYPE:
1394 CODE:
1395 RETVAL = poll_cb ();
1396 OUTPUT:
1397 RETVAL
1398
1399 void
1400 poll_wait ()
1401 PROTOTYPE:
1402 CODE:
1403 poll_wait ();
1404
1405 int
1406 nreqs ()
1407 PROTOTYPE:
1408 CODE:
1409 RETVAL = nreqs;
1410 OUTPUT:
1411 RETVAL
1412
1413 int
1414 nready ()
1415 PROTOTYPE:
1416 CODE:
1417 RETVAL = get_nready ();
1418 OUTPUT:
1419 RETVAL
1420
1421 int
1422 npending ()
1423 PROTOTYPE:
1424 CODE:
1425 RETVAL = get_npending ();
1426 OUTPUT:
1427 RETVAL
1428
1429 int
1430 nthreads ()
1431 PROTOTYPE:
1432 CODE:
1433 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1434 RETVAL = started;
1435 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1436 OUTPUT:
1437 RETVAL
1438
1439 void
1440 set_sync_prepare (SV *cb)
1441 PROTOTYPE: &
1442 CODE:
1443 SvREFCNT_dec (prepare_cb);
1444 prepare_cb = newSVsv (cb);
1445
1446 char *
1447 strerror (int errorno = errno)
1448 PROTOTYPE: ;$
1449 CODE:
1450 RETVAL = db_strerror (errorno);
1451 OUTPUT:
1452 RETVAL
1453
1454 void _on_next_submit (SV *cb)
1455 CODE:
1456 SvREFCNT_dec (on_next_submit);
1457 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1458
1459 DB_ENV *
1460 db_env_create (U32 env_flags = 0)
1461 CODE:
1462 {
1463 errno = db_env_create (&RETVAL, env_flags);
1464 if (errno)
1465 croak ("db_env_create: %s", db_strerror (errno));
1466
1467 if (0)
1468 {
1469 RETVAL->set_errcall (RETVAL, debug_errcall);
1470 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1471 }
1472 }
1473 OUTPUT:
1474 RETVAL
1475
1476 void
1477 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1478 PREINIT:
1479 CALLBACK
1480 CODE:
1481 {
1482 dREQ (REQ_ENV_OPEN);
1483 req->env = env;
1484 req->uint1 = open_flags | DB_THREAD;
1485 req->int1 = mode;
1486 req->buf1 = strdup_ornull (db_home);
1487 REQ_SEND;
1488 }
1489
1490 void
1491 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1492 PREINIT:
1493 CALLBACK
1494 CODE:
1495 {
1496 dREQ (REQ_ENV_CLOSE);
1497 req->env = env;
1498 req->uint1 = flags;
1499 REQ_SEND;
1500 ptr_nuke (ST (0));
1501 }
1502
1503 void
1504 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1505 PREINIT:
1506 CALLBACK
1507 CODE:
1508 {
1509 dREQ (REQ_ENV_TXN_CHECKPOINT);
1510 req->env = env;
1511 req->uint1 = kbyte;
1512 req->int1 = min;
1513 req->uint2 = flags;
1514 REQ_SEND;
1515 }
1516
1517 void
1518 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1519 PREINIT:
1520 CALLBACK
1521 CODE:
1522 {
1523 dREQ (REQ_ENV_LOCK_DETECT);
1524 req->env = env;
1525 req->uint1 = flags;
1526 req->uint2 = atype;
1527 /* req->int2 = 0; dummy */
1528 REQ_SEND;
1529 }
1530
1531 void
1532 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1533 PREINIT:
1534 CALLBACK
1535 CODE:
1536 {
1537 dREQ (REQ_ENV_MEMP_SYNC);
1538 req->env = env;
1539 REQ_SEND;
1540 }
1541
1542 void
1543 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1544 PREINIT:
1545 CALLBACK
1546 CODE:
1547 {
1548 dREQ (REQ_ENV_MEMP_TRICKLE);
1549 req->env = env;
1550 req->int1 = percent;
1551 REQ_SEND;
1552 }
1553
1554 void
1555 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1556 PREINIT:
1557 CALLBACK
1558 CODE:
1559 {
1560 dREQ (REQ_ENV_DBREMOVE);
1561 req->env = env;
1562 req->buf1 = strdup_ornull (file);
1563 req->buf2 = strdup_ornull (database);
1564 req->uint1 = flags;
1565 REQ_SEND;
1566 }
1567
1568 void
1569 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)
1570 PREINIT:
1571 CALLBACK
1572 CODE:
1573 {
1574 dREQ (REQ_ENV_DBRENAME);
1575 req->env = env;
1576 req->buf1 = strdup_ornull (file);
1577 req->buf2 = strdup_ornull (database);
1578 req->buf3 = strdup_ornull (newname);
1579 req->uint1 = flags;
1580 REQ_SEND;
1581 }
1582
1583 DB *
1584 db_create (DB_ENV *env = 0, U32 flags = 0)
1585 CODE:
1586 {
1587 errno = db_create (&RETVAL, env, flags);
1588 if (errno)
1589 croak ("db_create: %s", db_strerror (errno));
1590
1591 if (RETVAL)
1592 RETVAL->app_private = (void *)newSVsv (ST (0));
1593 }
1594 OUTPUT:
1595 RETVAL
1596
1597 void
1598 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1599 PREINIT:
1600 CALLBACK
1601 CODE:
1602 {
1603 dREQ (REQ_DB_OPEN);
1604 req->db = db;
1605 req->txn = txnid;
1606 req->buf1 = strdup_ornull (file);
1607 req->buf2 = strdup_ornull (database);
1608 req->int1 = type;
1609 req->uint1 = flags | DB_THREAD;
1610 req->int2 = mode;
1611 REQ_SEND;
1612 }
1613
1614 void
1615 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1616 PREINIT:
1617 CALLBACK
1618 CODE:
1619 {
1620 dREQ (REQ_DB_CLOSE);
1621 req->db = db;
1622 req->uint1 = flags;
1623 req->sv1 = (SV *)db->app_private;
1624 REQ_SEND;
1625 ptr_nuke (ST (0));
1626 }
1627
1628 void
1629 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)
1630 PREINIT:
1631 CALLBACK
1632 CODE:
1633 {
1634 dREQ (REQ_DB_COMPACT);
1635 req->db = db;
1636 req->txn = txn;
1637 sv_to_dbt (&req->dbt1, start);
1638 sv_to_dbt (&req->dbt2, stop);
1639 req->uint1 = flags;
1640 REQ_SEND;
1641 }
1642
1643 void
1644 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1645 PREINIT:
1646 CALLBACK
1647 CODE:
1648 {
1649 dREQ (REQ_DB_SYNC);
1650 req->db = db;
1651 req->uint1 = flags;
1652 REQ_SEND;
1653 }
1654
1655 void
1656 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1657 PREINIT:
1658 CALLBACK
1659 CODE:
1660 {
1661 dREQ (REQ_DB_SYNC);
1662 req->db = db;
1663 req->buf1 = strdup (file);
1664 req->uint1 = flags;
1665 REQ_SEND;
1666 }
1667
1668 void
1669 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
1670 PREINIT:
1671 CALLBACK
1672 CODE:
1673 {
1674 dREQ (REQ_DB_KEY_RANGE);
1675 req->db = db;
1676 req->txn = txn;
1677 sv_to_dbt (&req->dbt1, key);
1678 req->uint1 = flags;
1679 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1680 REQ_SEND;
1681 }
1682
1683 void
1684 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1685 PREINIT:
1686 CALLBACK
1687 CODE:
1688 {
1689 dREQ (REQ_DB_PUT);
1690 req->db = db;
1691 req->txn = txn;
1692 sv_to_dbt (&req->dbt1, key);
1693 sv_to_dbt (&req->dbt2, data);
1694 req->uint1 = flags;
1695 REQ_SEND;
1696 }
1697
1698 void
1699 db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1700 PREINIT:
1701 CALLBACK
1702 CODE:
1703 {
1704 dREQ (REQ_DB_EXISTS);
1705 req->db = db;
1706 req->txn = txn;
1707 req->uint1 = flags;
1708 sv_to_dbt (&req->dbt1, key);
1709 REQ_SEND;
1710 }
1711
1712 void
1713 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1714 PREINIT:
1715 CALLBACK
1716 CODE:
1717 if (SvREADONLY (data))
1718 croak ("can't modify read-only data scalar in db_get");
1719 {
1720 dREQ (REQ_DB_GET);
1721 req->db = db;
1722 req->txn = txn;
1723 req->uint1 = flags;
1724 sv_to_dbt (&req->dbt1, key);
1725 req->dbt3.flags = DB_DBT_MALLOC;
1726 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1727 REQ_SEND;
1728 }
1729
1730 void
1731 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
1732 PREINIT:
1733 CALLBACK
1734 CODE:
1735 if (SvREADONLY (data))
1736 croak ("can't modify read-only data scalar in db_pget");
1737 {
1738 dREQ (REQ_DB_PGET);
1739 req->db = db;
1740 req->txn = txn;
1741 req->uint1 = flags;
1742 sv_to_dbt (&req->dbt1, key);
1743 sv_to_dbt (&req->dbt2, pkey);
1744 req->dbt3.flags = DB_DBT_MALLOC;
1745 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1746 REQ_SEND;
1747 }
1748
1749 void
1750 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1751 PREINIT:
1752 CALLBACK
1753 CODE:
1754 {
1755 dREQ (REQ_DB_DEL);
1756 req->db = db;
1757 req->txn = txn;
1758 req->uint1 = flags;
1759 sv_to_dbt (&req->dbt1, key);
1760 REQ_SEND;
1761 }
1762
1763 void
1764 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1765 PREINIT:
1766 CALLBACK
1767 CODE:
1768 {
1769 dREQ (REQ_TXN_COMMIT);
1770 req->txn = txn;
1771 req->uint1 = flags;
1772 REQ_SEND;
1773 ptr_nuke (ST (0));
1774 }
1775
1776 void
1777 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1778 PREINIT:
1779 CALLBACK
1780 CODE:
1781 {
1782 dREQ (REQ_TXN_ABORT);
1783 req->txn = txn;
1784 REQ_SEND;
1785 ptr_nuke (ST (0));
1786 }
1787
1788 void
1789 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1790 PREINIT:
1791 CALLBACK
1792 CODE:
1793 {
1794 dREQ (REQ_TXN_FINISH);
1795 req->txn = txn;
1796 req->uint1 = flags;
1797 REQ_SEND;
1798 ptr_nuke (ST (0));
1799 }
1800
1801 void
1802 db_c_close (DBC *dbc, SV *callback = 0)
1803 PREINIT:
1804 CALLBACK
1805 CODE:
1806 {
1807 dREQ (REQ_C_CLOSE);
1808 req->dbc = dbc;
1809 REQ_SEND;
1810 ptr_nuke (ST (0));
1811 }
1812
1813 void
1814 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1815 PREINIT:
1816 CALLBACK
1817 CODE:
1818 {
1819 dREQ (REQ_C_COUNT);
1820 req->dbc = dbc;
1821 req->sv1 = SvREFCNT_inc (count);
1822 REQ_SEND;
1823 }
1824
1825 void
1826 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1827 PREINIT:
1828 CALLBACK
1829 CODE:
1830 {
1831 dREQ (REQ_C_PUT);
1832 req->dbc = dbc;
1833 sv_to_dbt (&req->dbt1, key);
1834 sv_to_dbt (&req->dbt2, data);
1835 req->uint1 = flags;
1836 REQ_SEND;
1837 }
1838
1839 void
1840 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1841 PREINIT:
1842 CALLBACK
1843 CODE:
1844 {
1845 dREQ (REQ_C_GET);
1846 req->dbc = dbc;
1847 req->uint1 = flags;
1848 if ((flags & DB_SET) == DB_SET
1849 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1850 sv_to_dbt (&req->dbt1, key);
1851 else
1852 req->dbt1.flags = DB_DBT_MALLOC;
1853
1854 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1855
1856 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1857 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1858 sv_to_dbt (&req->dbt3, data);
1859 else
1860 req->dbt3.flags = DB_DBT_MALLOC;
1861
1862 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1863 REQ_SEND;
1864 }
1865
1866 void
1867 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
1868 PREINIT:
1869 CALLBACK
1870 CODE:
1871 {
1872 dREQ (REQ_C_PGET);
1873 req->dbc = dbc;
1874 req->uint1 = flags;
1875 if ((flags & DB_SET) == DB_SET
1876 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1877 sv_to_dbt (&req->dbt1, key);
1878 else
1879 req->dbt1.flags = DB_DBT_MALLOC;
1880
1881 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1882
1883 req->dbt2.flags = DB_DBT_MALLOC;
1884 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1885
1886 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1887 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1888 sv_to_dbt (&req->dbt3, data);
1889 else
1890 req->dbt3.flags = DB_DBT_MALLOC;
1891
1892 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1893 REQ_SEND;
1894 }
1895
1896 void
1897 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
1898 PREINIT:
1899 CALLBACK
1900 CODE:
1901 {
1902 dREQ (REQ_C_DEL);
1903 req->dbc = dbc;
1904 req->uint1 = flags;
1905 REQ_SEND;
1906 }
1907
1908
1909 void
1910 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
1911 PREINIT:
1912 CALLBACK
1913 CODE:
1914 {
1915 dREQ (REQ_SEQ_OPEN);
1916 req->seq = seq;
1917 req->txn = txnid;
1918 req->uint1 = flags | DB_THREAD;
1919 sv_to_dbt (&req->dbt1, key);
1920 REQ_SEND;
1921 }
1922
1923 void
1924 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
1925 PREINIT:
1926 CALLBACK
1927 CODE:
1928 {
1929 dREQ (REQ_SEQ_CLOSE);
1930 req->seq = seq;
1931 req->uint1 = flags;
1932 REQ_SEND;
1933 ptr_nuke (ST (0));
1934 }
1935
1936 void
1937 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
1938 PREINIT:
1939 CALLBACK
1940 CODE:
1941 {
1942 dREQ (REQ_SEQ_GET);
1943 req->seq = seq;
1944 req->txn = txnid;
1945 req->int1 = delta;
1946 req->uint1 = flags;
1947 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1948 REQ_SEND;
1949 }
1950
1951 void
1952 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
1953 PREINIT:
1954 CALLBACK
1955 CODE:
1956 {
1957 dREQ (REQ_SEQ_REMOVE);
1958 req->seq = seq;
1959 req->txn = txnid;
1960 req->uint1 = flags;
1961 REQ_SEND;
1962 }
1963
1964
1965 MODULE = BDB PACKAGE = BDB::Env
1966
1967 void
1968 DESTROY (DB_ENV_ornuked *env)
1969 CODE:
1970 if (env)
1971 env->close (env, 0);
1972
1973 int set_data_dir (DB_ENV *env, const char *dir)
1974 CODE:
1975 RETVAL = env->set_data_dir (env, dir);
1976 OUTPUT:
1977 RETVAL
1978
1979 int set_tmp_dir (DB_ENV *env, const char *dir)
1980 CODE:
1981 RETVAL = env->set_tmp_dir (env, dir);
1982 OUTPUT:
1983 RETVAL
1984
1985 int set_lg_dir (DB_ENV *env, const char *dir)
1986 CODE:
1987 RETVAL = env->set_lg_dir (env, dir);
1988 OUTPUT:
1989 RETVAL
1990
1991 int set_shm_key (DB_ENV *env, long shm_key)
1992 CODE:
1993 RETVAL = env->set_shm_key (env, shm_key);
1994 OUTPUT:
1995 RETVAL
1996
1997 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1998 CODE:
1999 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
2000 OUTPUT:
2001 RETVAL
2002
2003 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
2004 CODE:
2005 RETVAL = env->set_flags (env, flags, onoff);
2006 OUTPUT:
2007 RETVAL
2008
2009 #if DB_VERSION_MINOR >= 7
2010
2011 int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
2012 CODE:
2013 RETVAL = env->set_intermediate_dir_mode (env, mode);
2014 OUTPUT:
2015 RETVAL
2016
2017 int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
2018 CODE:
2019 RETVAL = env->log_set_config (env, flags, onoff);
2020 OUTPUT:
2021 RETVAL
2022
2023 #endif
2024
2025
2026 void set_errfile (DB_ENV *env, FILE *errfile = 0)
2027 CODE:
2028 env->set_errfile (env, errfile);
2029
2030 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
2031 CODE:
2032 env->set_msgfile (env, msgfile);
2033
2034 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2035 CODE:
2036 RETVAL = env->set_verbose (env, which, onoff);
2037 OUTPUT:
2038 RETVAL
2039
2040 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2041 CODE:
2042 RETVAL = env->set_encrypt (env, password, flags);
2043 OUTPUT:
2044 RETVAL
2045
2046 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2047 CODE:
2048 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2049 OUTPUT:
2050 RETVAL
2051
2052 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2053 CODE:
2054 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2055 OUTPUT:
2056 RETVAL
2057
2058 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2059 CODE:
2060 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2061 OUTPUT:
2062 RETVAL
2063
2064 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2065 CODE:
2066 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2067 OUTPUT:
2068 RETVAL
2069
2070 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2071 CODE:
2072 RETVAL = env->set_lk_detect (env, detect);
2073 OUTPUT:
2074 RETVAL
2075
2076 int set_lk_max_lockers (DB_ENV *env, U32 max)
2077 CODE:
2078 RETVAL = env->set_lk_max_lockers (env, max);
2079 OUTPUT:
2080 RETVAL
2081
2082 int set_lk_max_locks (DB_ENV *env, U32 max)
2083 CODE:
2084 RETVAL = env->set_lk_max_locks (env, max);
2085 OUTPUT:
2086 RETVAL
2087
2088 int set_lk_max_objects (DB_ENV *env, U32 max)
2089 CODE:
2090 RETVAL = env->set_lk_max_objects (env, max);
2091 OUTPUT:
2092 RETVAL
2093
2094 int set_lg_bsize (DB_ENV *env, U32 max)
2095 CODE:
2096 RETVAL = env->set_lg_bsize (env, max);
2097 OUTPUT:
2098 RETVAL
2099
2100 int set_lg_max (DB_ENV *env, U32 max)
2101 CODE:
2102 RETVAL = env->set_lg_max (env, max);
2103 OUTPUT:
2104 RETVAL
2105
2106 int mutex_set_max (DB_ENV *env, U32 max)
2107 CODE:
2108 RETVAL = env->mutex_set_max (env, max);
2109 OUTPUT:
2110 RETVAL
2111
2112 int mutex_set_increment (DB_ENV *env, U32 increment)
2113 CODE:
2114 RETVAL = env->mutex_set_increment (env, increment);
2115 OUTPUT:
2116 RETVAL
2117
2118 int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2119 CODE:
2120 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2121 OUTPUT:
2122 RETVAL
2123
2124 int mutex_set_align (DB_ENV *env, U32 align)
2125 CODE:
2126 RETVAL = env->mutex_set_align (env, align);
2127 OUTPUT:
2128 RETVAL
2129
2130 DB_TXN *
2131 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2132 CODE:
2133 errno = env->txn_begin (env, parent, &RETVAL, flags);
2134 if (errno)
2135 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2136 OUTPUT:
2137 RETVAL
2138
2139 DB_TXN *
2140 cdsgroup_begin (DB_ENV *env)
2141 CODE:
2142 errno = env->cdsgroup_begin (env, &RETVAL);
2143 if (errno)
2144 croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
2145 OUTPUT:
2146 RETVAL
2147
2148 MODULE = BDB PACKAGE = BDB::Db
2149
2150 void
2151 DESTROY (DB_ornuked *db)
2152 CODE:
2153 if (db)
2154 {
2155 SV *env = (SV *)db->app_private;
2156 db->close (db, 0);
2157 SvREFCNT_dec (env);
2158 }
2159
2160 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2161 CODE:
2162 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2163 OUTPUT:
2164 RETVAL
2165
2166 int set_flags (DB *db, U32 flags)
2167 CODE:
2168 RETVAL = db->set_flags (db, flags);
2169 OUTPUT:
2170 RETVAL
2171
2172 int set_encrypt (DB *db, const char *password, U32 flags)
2173 CODE:
2174 RETVAL = db->set_encrypt (db, password, flags);
2175 OUTPUT:
2176 RETVAL
2177
2178 int set_lorder (DB *db, int lorder)
2179 CODE:
2180 RETVAL = db->set_lorder (db, lorder);
2181 OUTPUT:
2182 RETVAL
2183
2184 int set_bt_minkey (DB *db, U32 minkey)
2185 CODE:
2186 RETVAL = db->set_bt_minkey (db, minkey);
2187 OUTPUT:
2188 RETVAL
2189
2190 int set_re_delim (DB *db, int delim)
2191 CODE:
2192 RETVAL = db->set_re_delim (db, delim);
2193 OUTPUT:
2194 RETVAL
2195
2196 int set_re_pad (DB *db, int re_pad)
2197 CODE:
2198 RETVAL = db->set_re_pad (db, re_pad);
2199 OUTPUT:
2200 RETVAL
2201
2202 int set_re_source (DB *db, char *source)
2203 CODE:
2204 RETVAL = db->set_re_source (db, source);
2205 OUTPUT:
2206 RETVAL
2207
2208 int set_re_len (DB *db, U32 re_len)
2209 CODE:
2210 RETVAL = db->set_re_len (db, re_len);
2211 OUTPUT:
2212 RETVAL
2213
2214 int set_h_ffactor (DB *db, U32 h_ffactor)
2215 CODE:
2216 RETVAL = db->set_h_ffactor (db, h_ffactor);
2217 OUTPUT:
2218 RETVAL
2219
2220 int set_h_nelem (DB *db, U32 h_nelem)
2221 CODE:
2222 RETVAL = db->set_h_nelem (db, h_nelem);
2223 OUTPUT:
2224 RETVAL
2225
2226 int set_q_extentsize (DB *db, U32 extentsize)
2227 CODE:
2228 RETVAL = db->set_q_extentsize (db, extentsize);
2229 OUTPUT:
2230 RETVAL
2231
2232 DBC *
2233 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2234 CODE:
2235 errno = db->cursor (db, txn, &RETVAL, flags);
2236 if (errno)
2237 croak ("DB->cursor: %s", db_strerror (errno));
2238 OUTPUT:
2239 RETVAL
2240
2241 DB_SEQUENCE *
2242 sequence (DB *db, U32 flags = 0)
2243 CODE:
2244 {
2245 errno = db_sequence_create (&RETVAL, db, flags);
2246 if (errno)
2247 croak ("db_sequence_create: %s", db_strerror (errno));
2248 }
2249 OUTPUT:
2250 RETVAL
2251
2252
2253 MODULE = BDB PACKAGE = BDB::Txn
2254
2255 void
2256 DESTROY (DB_TXN_ornuked *txn)
2257 CODE:
2258 if (txn)
2259 txn->abort (txn);
2260
2261 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2262 CODE:
2263 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2264 OUTPUT:
2265 RETVAL
2266
2267 int failed (DB_TXN *txn)
2268 CODE:
2269 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2270 OUTPUT:
2271 RETVAL
2272
2273
2274 MODULE = BDB PACKAGE = BDB::Cursor
2275
2276 void
2277 DESTROY (DBC_ornuked *dbc)
2278 CODE:
2279 if (dbc)
2280 dbc->c_close (dbc);
2281
2282 #if DB_VERSION_MINOR >= 6
2283
2284 int set_priority (DBC *dbc, int priority)
2285 CODE:
2286 dbc->set_priority (dbc, priority);
2287
2288 #endif
2289
2290 MODULE = BDB PACKAGE = BDB::Sequence
2291
2292 void
2293 DESTROY (DB_SEQUENCE_ornuked *seq)
2294 CODE:
2295 if (seq)
2296 seq->close (seq, 0);
2297
2298 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2299 CODE:
2300 RETVAL = seq->initial_value (seq, value);
2301 OUTPUT:
2302 RETVAL
2303
2304 int set_cachesize (DB_SEQUENCE *seq, U32 size)
2305 CODE:
2306 RETVAL = seq->set_cachesize (seq, size);
2307 OUTPUT:
2308 RETVAL
2309
2310 int set_flags (DB_SEQUENCE *seq, U32 flags)
2311 CODE:
2312 RETVAL = seq->set_flags (seq, flags);
2313 OUTPUT:
2314 RETVAL
2315
2316 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2317 CODE:
2318 RETVAL = seq->set_range (seq, min, max);
2319 OUTPUT:
2320 RETVAL
2321
2322