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/cvs/BDB/BDB.xs
Revision: 1.41
Committed: Wed Jul 9 12:15:36 2008 UTC (15 years, 10 months ago) by root
Branch: MAIN
Changes since 1.40: +120 -37 lines
Log Message:
new xlalbacks

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_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 free (req->buf1);
417 free (req->buf2);
418 free (req->buf3);
419 Safefree (req);
420 }
421
422 #ifdef USE_SOCKETS_AS_HANDLES
423 # define TO_SOCKET(x) (win32_get_osfhandle (x))
424 #else
425 # define TO_SOCKET(x) (x)
426 #endif
427
428 static void
429 create_respipe (void)
430 {
431 #ifdef _WIN32
432 int arg; /* argg */
433 #endif
434 int old_readfd = respipe [0];
435
436 if (respipe [1] >= 0)
437 respipe_close (TO_SOCKET (respipe [1]));
438
439 #ifdef _WIN32
440 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
441 #else
442 if (pipe (respipe))
443 #endif
444 croak ("unable to initialize result pipe");
445
446 if (old_readfd >= 0)
447 {
448 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
449 croak ("unable to initialize result pipe(2)");
450
451 respipe_close (respipe [0]);
452 respipe [0] = old_readfd;
453 }
454
455 #ifdef _WIN32
456 arg = 1;
457 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
458 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
459 #else
460 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
461 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
462 #endif
463 croak ("unable to initialize result pipe(3)");
464
465 respipe_osf [0] = TO_SOCKET (respipe [0]);
466 respipe_osf [1] = TO_SOCKET (respipe [1]);
467 }
468
469 X_THREAD_PROC (bdb_proc);
470
471 static void start_thread (void)
472 {
473 worker *wrk = calloc (1, sizeof (worker));
474
475 if (!wrk)
476 croak ("unable to allocate worker thread data");
477
478 X_LOCK (wrklock);
479 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
480 {
481 wrk->prev = &wrk_first;
482 wrk->next = wrk_first.next;
483 wrk_first.next->prev = wrk;
484 wrk_first.next = wrk;
485 ++started;
486 }
487 else
488 free (wrk);
489
490 X_UNLOCK (wrklock);
491 }
492
493 static void maybe_start_thread (void)
494 {
495 if (get_nthreads () >= wanted)
496 return;
497
498 /* todo: maybe use idle here, but might be less exact */
499 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
500 return;
501
502 start_thread ();
503 }
504
505 static void req_send (bdb_req req)
506 {
507 SV *wait_callback = 0;
508
509 if (on_next_submit)
510 {
511 dSP;
512 SV *cb = sv_2mortal (on_next_submit);
513
514 on_next_submit = 0;
515
516 PUSHMARK (SP);
517 PUTBACK;
518 call_sv (cb, G_DISCARD | G_EVAL);
519 }
520
521 // synthesize callback if none given
522 if (!req->callback)
523 {
524 int count;
525
526 dSP;
527 PUSHMARK (SP);
528 PUTBACK;
529 count = call_sv (prepare_cb, G_ARRAY);
530 SPAGAIN;
531
532 if (count != 2)
533 croak ("prepare callback must return exactly two values\n");
534
535 wait_callback = POPs;
536 SvREFCNT_dec (req->callback);
537 req->callback = SvREFCNT_inc (POPs);
538 }
539
540 ++nreqs;
541
542 X_LOCK (reqlock);
543 ++nready;
544 reqq_push (&req_queue, req);
545 X_COND_SIGNAL (reqwait);
546 X_UNLOCK (reqlock);
547
548 maybe_start_thread ();
549
550 if (wait_callback)
551 {
552 dSP;
553 PUSHMARK (SP);
554 PUTBACK;
555 call_sv (wait_callback, G_DISCARD);
556 }
557 }
558
559 static void end_thread (void)
560 {
561 bdb_req req;
562
563 Newz (0, req, 1, bdb_cb);
564
565 req->type = REQ_QUIT;
566 req->pri = PRI_MAX + PRI_BIAS;
567
568 X_LOCK (reqlock);
569 reqq_push (&req_queue, req);
570 X_COND_SIGNAL (reqwait);
571 X_UNLOCK (reqlock);
572
573 X_LOCK (wrklock);
574 --started;
575 X_UNLOCK (wrklock);
576 }
577
578 static void set_max_idle (int nthreads)
579 {
580 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
581 max_idle = nthreads <= 0 ? 1 : nthreads;
582 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
583 }
584
585 static void min_parallel (int nthreads)
586 {
587 if (wanted < nthreads)
588 wanted = nthreads;
589 }
590
591 static void max_parallel (int nthreads)
592 {
593 if (wanted > nthreads)
594 wanted = nthreads;
595
596 while (started > wanted)
597 end_thread ();
598 }
599
600 static void poll_wait (void)
601 {
602 fd_set rfd;
603
604 while (nreqs)
605 {
606 int size;
607 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
608 size = res_queue.size;
609 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
610
611 if (size)
612 return;
613
614 maybe_start_thread ();
615
616 FD_ZERO (&rfd);
617 FD_SET (respipe [0], &rfd);
618
619 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
620 }
621 }
622
623 static int poll_cb (void)
624 {
625 dSP;
626 int count = 0;
627 int maxreqs = max_poll_reqs;
628 int do_croak = 0;
629 struct timeval tv_start, tv_now;
630 bdb_req req;
631
632 if (max_poll_time)
633 gettimeofday (&tv_start, 0);
634
635 for (;;)
636 {
637 for (;;)
638 {
639 maybe_start_thread ();
640
641 X_LOCK (reslock);
642 req = reqq_shift (&res_queue);
643
644 if (req)
645 {
646 --npending;
647
648 if (!res_queue.size)
649 {
650 /* read any signals sent by the worker threads */
651 char buf [4];
652 while (respipe_read (respipe [0], buf, 4) == 4)
653 ;
654 }
655 }
656
657 X_UNLOCK (reslock);
658
659 if (!req)
660 break;
661
662 --nreqs;
663
664 if (!req_invoke (req))
665 {
666 req_free (req);
667 croak (0);
668 }
669
670 count++;
671
672 req_free (req);
673
674 if (maxreqs && !--maxreqs)
675 break;
676
677 if (max_poll_time)
678 {
679 gettimeofday (&tv_now, 0);
680
681 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
682 break;
683 }
684 }
685
686 if (nreqs <= max_outstanding)
687 break;
688
689 poll_wait ();
690
691 ++maxreqs;
692 }
693
694 return count;
695 }
696
697 /*****************************************************************************/
698
699 X_THREAD_PROC (bdb_proc)
700 {
701 bdb_req req;
702 struct timespec ts;
703 worker *self = (worker *)thr_arg;
704
705 /* try to distribute timeouts somewhat evenly */
706 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
707
708 for (;;)
709 {
710 ts.tv_sec = time (0) + IDLE_TIMEOUT;
711
712 X_LOCK (reqlock);
713
714 for (;;)
715 {
716 self->req = req = reqq_shift (&req_queue);
717
718 if (req)
719 break;
720
721 ++idle;
722
723 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
724 == ETIMEDOUT)
725 {
726 if (idle > max_idle)
727 {
728 --idle;
729 X_UNLOCK (reqlock);
730 X_LOCK (wrklock);
731 --started;
732 X_UNLOCK (wrklock);
733 goto quit;
734 }
735
736 /* we are allowed to idle, so do so without any timeout */
737 X_COND_WAIT (reqwait, reqlock);
738 ts.tv_sec = time (0) + IDLE_TIMEOUT;
739 }
740
741 --idle;
742 }
743
744 --nready;
745
746 X_UNLOCK (reqlock);
747
748 switch (req->type)
749 {
750 case REQ_QUIT:
751 req->result = ENOSYS;
752 goto quit;
753
754 case REQ_ENV_OPEN:
755 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
756 break;
757
758 case REQ_ENV_CLOSE:
759 req->result = req->env->close (req->env, req->uint1);
760 break;
761
762 case REQ_ENV_TXN_CHECKPOINT:
763 req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
764 break;
765
766 case REQ_ENV_LOCK_DETECT:
767 req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
768 break;
769
770 case REQ_ENV_MEMP_SYNC:
771 req->result = req->env->memp_sync (req->env, 0);
772 break;
773
774 case REQ_ENV_MEMP_TRICKLE:
775 req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
776 break;
777
778 case REQ_ENV_DBREMOVE:
779 req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
780 break;
781
782 case REQ_ENV_DBRENAME:
783 req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
784 break;
785
786 case REQ_DB_OPEN:
787 req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
788 break;
789
790 case REQ_DB_CLOSE:
791 req->result = req->db->close (req->db, req->uint1);
792 break;
793
794 case REQ_DB_COMPACT:
795 req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
796 break;
797
798 case REQ_DB_SYNC:
799 req->result = req->db->sync (req->db, req->uint1);
800 break;
801
802 case REQ_DB_UPGRADE:
803 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
804 break;
805
806 case REQ_DB_PUT:
807 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
808 break;
809
810 case REQ_DB_GET:
811 req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
812 break;
813
814 case REQ_DB_PGET:
815 req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
816 break;
817
818 case REQ_DB_DEL:
819 req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
820 break;
821
822 case REQ_DB_KEY_RANGE:
823 req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
824 break;
825
826 case REQ_TXN_COMMIT:
827 req->result = req->txn->commit (req->txn, req->uint1);
828 break;
829
830 case REQ_TXN_ABORT:
831 req->result = req->txn->abort (req->txn);
832 break;
833
834 case REQ_TXN_FINISH:
835 if (req->txn->flags & TXN_DEADLOCK)
836 {
837 req->result = req->txn->abort (req->txn);
838 if (!req->result)
839 req->result = DB_LOCK_DEADLOCK;
840 }
841 else
842 req->result = req->txn->commit (req->txn, req->uint1);
843 break;
844
845 case REQ_C_CLOSE:
846 req->result = req->dbc->c_close (req->dbc);
847 break;
848
849 case REQ_C_COUNT:
850 {
851 db_recno_t recno;
852 req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
853 req->uv1 = recno;
854 }
855 break;
856
857 case REQ_C_PUT:
858 req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
859 break;
860
861 case REQ_C_GET:
862 req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
863 break;
864
865 case REQ_C_PGET:
866 req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
867 break;
868
869 case REQ_C_DEL:
870 req->result = req->dbc->c_del (req->dbc, req->uint1);
871 break;
872
873 case REQ_SEQ_OPEN:
874 req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
875 break;
876
877 case REQ_SEQ_CLOSE:
878 req->result = req->seq->close (req->seq, req->uint1);
879 break;
880
881 case REQ_SEQ_GET:
882 req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
883 break;
884
885 case REQ_SEQ_REMOVE:
886 req->result = req->seq->remove (req->seq, req->txn, req->uint1);
887 break;
888
889 default:
890 req->result = ENOSYS;
891 break;
892 }
893
894 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
895 req->txn->flags |= TXN_DEADLOCK;
896
897 X_LOCK (reslock);
898
899 ++npending;
900
901 if (!reqq_push (&res_queue, req))
902 /* write a dummy byte to the pipe so fh becomes ready */
903 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
904
905 self->req = 0;
906 worker_clear (self);
907
908 X_UNLOCK (reslock);
909 }
910
911 quit:
912 X_LOCK (wrklock);
913 worker_free (self);
914 X_UNLOCK (wrklock);
915
916 return 0;
917 }
918
919 /*****************************************************************************/
920
921 static void atfork_prepare (void)
922 {
923 X_LOCK (wrklock);
924 X_LOCK (reqlock);
925 X_LOCK (reslock);
926 }
927
928 static void atfork_parent (void)
929 {
930 X_UNLOCK (reslock);
931 X_UNLOCK (reqlock);
932 X_UNLOCK (wrklock);
933 }
934
935 static void atfork_child (void)
936 {
937 bdb_req prv;
938
939 while (prv = reqq_shift (&req_queue))
940 req_free (prv);
941
942 while (prv = reqq_shift (&res_queue))
943 req_free (prv);
944
945 while (wrk_first.next != &wrk_first)
946 {
947 worker *wrk = wrk_first.next;
948
949 if (wrk->req)
950 req_free (wrk->req);
951
952 worker_clear (wrk);
953 worker_free (wrk);
954 }
955
956 started = 0;
957 idle = 0;
958 nreqs = 0;
959 nready = 0;
960 npending = 0;
961
962 create_respipe ();
963
964 atfork_parent ();
965 }
966
967 #define dREQ(reqtype) \
968 bdb_req req; \
969 int req_pri = next_pri; \
970 next_pri = DEFAULT_PRI + PRI_BIAS; \
971 \
972 if (callback && SvOK (callback)) \
973 croak ("callback has illegal type or extra arguments"); \
974 \
975 Newz (0, req, 1, bdb_cb); \
976 if (!req) \
977 croak ("out of memory during bdb_req allocation"); \
978 \
979 req->callback = cb ? SvREFCNT_inc (cb) : 0; \
980 req->type = (reqtype); \
981 req->pri = req_pri
982
983 #define REQ_SEND \
984 req_send (req)
985
986 #define SvPTR(var, arg, type, class, nullok) \
987 if (!SvOK (arg)) \
988 { \
989 if (nullok != 1) \
990 croak (# var " must be a " # class " object, not undef"); \
991 \
992 (var) = 0; \
993 } \
994 else if (sv_derived_from ((arg), # class)) \
995 { \
996 IV tmp = SvIV ((SV*) SvRV (arg)); \
997 (var) = INT2PTR (type, tmp); \
998 if (!var && nullok != 2) \
999 croak (# var " is not a valid " # class " object anymore"); \
1000 } \
1001 else \
1002 croak (# var " is not of type " # class); \
1003 \
1004
1005 static void
1006 ptr_nuke (SV *sv)
1007 {
1008 assert (SvROK (sv));
1009 sv_setiv (SvRV (sv), 0);
1010 }
1011
1012 static int
1013 errno_get (pTHX_ SV *sv, MAGIC *mg)
1014 {
1015 if (*mg->mg_ptr == '!') // should always be the case
1016 if (-30999 <= errno && errno <= -30800)
1017 {
1018 sv_setnv (sv, (NV)errno);
1019 sv_setpv (sv, db_strerror (errno));
1020 SvNOK_on (sv); /* what a wonderful hack! */
1021 // ^^^ copied from perl sources
1022 return 0;
1023 }
1024
1025 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1026 }
1027
1028 static MGVTBL vtbl_errno;
1029
1030 // this wonderful hack :( patches perl's $! variable to support our errno values
1031 static void
1032 patch_errno (void)
1033 {
1034 SV *sv;
1035 MAGIC *mg;
1036
1037 if (!(sv = get_sv ("!", 1)))
1038 return;
1039
1040 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1041 return;
1042
1043 if (mg->mg_virtual != &PL_vtbl_sv)
1044 return;
1045
1046 vtbl_errno = PL_vtbl_sv;
1047 vtbl_errno.svt_get = errno_get;
1048 mg->mg_virtual = &vtbl_errno;
1049 }
1050
1051 static SV *
1052 pop_callback (I32 *ritems, SV *sv)
1053 {
1054 if (SvROK (sv))
1055 {
1056 HV *st;
1057 GV *gvp;
1058 CV *cv = sv_2cv (sv, &st, &gvp, 0);
1059
1060 if (cv)
1061 {
1062 --*ritems;
1063 return (SV *)cv;
1064 }
1065 }
1066
1067 return 0;
1068 }
1069
1070 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1071
1072 MODULE = BDB PACKAGE = BDB
1073
1074 PROTOTYPES: ENABLE
1075
1076 BOOT:
1077 {
1078 HV *stash = gv_stashpv ("BDB", 1);
1079
1080 static const struct {
1081 const char *name;
1082 IV iv;
1083 } *civ, const_iv[] = {
1084 #define const_iv(name) { # name, (IV)DB_ ## name },
1085 const_iv (RPCCLIENT)
1086 const_iv (INIT_CDB)
1087 const_iv (INIT_LOCK)
1088 const_iv (INIT_LOG)
1089 const_iv (INIT_MPOOL)
1090 const_iv (INIT_REP)
1091 const_iv (INIT_TXN)
1092 const_iv (RECOVER)
1093 const_iv (INIT_TXN)
1094 const_iv (RECOVER_FATAL)
1095 const_iv (CREATE)
1096 const_iv (RDONLY)
1097 const_iv (USE_ENVIRON)
1098 const_iv (USE_ENVIRON_ROOT)
1099 const_iv (LOCKDOWN)
1100 const_iv (PRIVATE)
1101 const_iv (REGISTER)
1102 const_iv (SYSTEM_MEM)
1103 const_iv (AUTO_COMMIT)
1104 const_iv (CDB_ALLDB)
1105 const_iv (DIRECT_DB)
1106 const_iv (DSYNC_DB)
1107 const_iv (NOLOCKING)
1108 const_iv (NOMMAP)
1109 const_iv (NOPANIC)
1110 const_iv (OVERWRITE)
1111 const_iv (PANIC_ENVIRONMENT)
1112 const_iv (REGION_INIT)
1113 const_iv (TIME_NOTGRANTED)
1114 const_iv (TXN_NOSYNC)
1115 const_iv (TXN_NOT_DURABLE)
1116 const_iv (TXN_WRITE_NOSYNC)
1117 const_iv (WRITECURSOR)
1118 const_iv (YIELDCPU)
1119 const_iv (ENCRYPT_AES)
1120 const_iv (XA_CREATE)
1121 const_iv (BTREE)
1122 const_iv (HASH)
1123 const_iv (QUEUE)
1124 const_iv (RECNO)
1125 const_iv (UNKNOWN)
1126 const_iv (EXCL)
1127 const_iv (READ_COMMITTED)
1128 const_iv (READ_UNCOMMITTED)
1129 const_iv (TRUNCATE)
1130 const_iv (NOSYNC)
1131 const_iv (CHKSUM)
1132 const_iv (ENCRYPT)
1133 const_iv (DUP)
1134 const_iv (DUPSORT)
1135 const_iv (RECNUM)
1136 const_iv (RENUMBER)
1137 const_iv (REVSPLITOFF)
1138 const_iv (INORDER)
1139 const_iv (CONSUME)
1140 const_iv (CONSUME_WAIT)
1141 const_iv (GET_BOTH)
1142 const_iv (GET_BOTH_RANGE)
1143 //const_iv (SET_RECNO)
1144 //const_iv (MULTIPLE)
1145 const_iv (SNAPSHOT)
1146 const_iv (JOIN_ITEM)
1147 const_iv (JOIN_NOSORT)
1148 const_iv (RMW)
1149
1150 const_iv (NOTFOUND)
1151 const_iv (KEYEMPTY)
1152 const_iv (LOCK_DEADLOCK)
1153 const_iv (LOCK_NOTGRANTED)
1154 const_iv (RUNRECOVERY)
1155 const_iv (OLD_VERSION)
1156 const_iv (REP_HANDLE_DEAD)
1157 const_iv (REP_LOCKOUT)
1158 const_iv (SECONDARY_BAD)
1159
1160 const_iv (FREE_SPACE)
1161 const_iv (FREELIST_ONLY)
1162
1163 const_iv (APPEND)
1164 const_iv (NODUPDATA)
1165 const_iv (NOOVERWRITE)
1166
1167 const_iv (TXN_NOWAIT)
1168 const_iv (TXN_SYNC)
1169
1170 const_iv (SET_LOCK_TIMEOUT)
1171 const_iv (SET_TXN_TIMEOUT)
1172
1173 const_iv (FIRST)
1174 const_iv (NEXT)
1175 const_iv (NEXT_DUP)
1176 const_iv (NEXT_NODUP)
1177 const_iv (PREV)
1178 const_iv (PREV_NODUP)
1179 const_iv (SET)
1180 const_iv (SET_RANGE)
1181 const_iv (LAST)
1182 const_iv (BEFORE)
1183 const_iv (AFTER)
1184 const_iv (CURRENT)
1185 const_iv (KEYFIRST)
1186 const_iv (KEYLAST)
1187 const_iv (NODUPDATA)
1188
1189 const_iv (FORCE)
1190
1191 const_iv (LOCK_DEFAULT)
1192 const_iv (LOCK_EXPIRE)
1193 const_iv (LOCK_MAXLOCKS)
1194 const_iv (LOCK_MAXWRITE)
1195 const_iv (LOCK_MINLOCKS)
1196 const_iv (LOCK_MINWRITE)
1197 const_iv (LOCK_OLDEST)
1198 const_iv (LOCK_RANDOM)
1199 const_iv (LOCK_YOUNGEST)
1200
1201 const_iv (SEQ_DEC)
1202 const_iv (SEQ_INC)
1203 const_iv (SEQ_WRAP)
1204
1205 const_iv (BUFFER_SMALL)
1206 const_iv (DONOTINDEX)
1207 const_iv (KEYEMPTY )
1208 const_iv (KEYEXIST )
1209 const_iv (LOCK_DEADLOCK)
1210 const_iv (LOCK_NOTGRANTED)
1211 const_iv (LOG_BUFFER_FULL)
1212 const_iv (NOSERVER)
1213 const_iv (NOSERVER_HOME)
1214 const_iv (NOSERVER_ID)
1215 const_iv (NOTFOUND)
1216 const_iv (PAGE_NOTFOUND)
1217 const_iv (REP_DUPMASTER)
1218 const_iv (REP_HANDLE_DEAD)
1219 const_iv (REP_HOLDELECTION)
1220 const_iv (REP_IGNORE)
1221 const_iv (REP_ISPERM)
1222 const_iv (REP_JOIN_FAILURE)
1223 const_iv (REP_LOCKOUT)
1224 const_iv (REP_NEWMASTER)
1225 const_iv (REP_NEWSITE)
1226 const_iv (REP_NOTPERM)
1227 const_iv (REP_UNAVAIL)
1228 const_iv (RUNRECOVERY)
1229 const_iv (SECONDARY_BAD)
1230 const_iv (VERIFY_BAD)
1231 const_iv (VERSION_MISMATCH)
1232
1233 const_iv (VERB_DEADLOCK)
1234 const_iv (VERB_RECOVERY)
1235 const_iv (VERB_REGISTER)
1236 const_iv (VERB_REPLICATION)
1237 const_iv (VERB_WAITSFOR)
1238
1239 const_iv (VERSION_MAJOR)
1240 const_iv (VERSION_MINOR)
1241 const_iv (VERSION_PATCH)
1242 #if DB_VERSION_MINOR >= 5
1243 const_iv (MULTIVERSION)
1244 const_iv (TXN_SNAPSHOT)
1245 #endif
1246 #if DB_VERSION_MINOR >= 6
1247 const_iv (PREV_DUP)
1248 const_iv (PRIORITY_UNCHANGED)
1249 const_iv (PRIORITY_VERY_LOW)
1250 const_iv (PRIORITY_LOW)
1251 const_iv (PRIORITY_DEFAULT)
1252 const_iv (PRIORITY_HIGH)
1253 const_iv (PRIORITY_VERY_HIGH)
1254 #endif
1255 #if DB_VERSION_MINOR >= 7
1256 const_iv (LOG_DIRECT)
1257 const_iv (LOG_DSYNC)
1258 const_iv (LOG_AUTO_REMOVE)
1259 const_iv (LOG_IN_MEMORY)
1260 const_iv (LOG_ZERO)
1261 #else
1262 const_iv (DIRECT_LOG)
1263 const_iv (DSYNC_LOG)
1264 const_iv (LOG_AUTOREMOVE)
1265 const_iv (LOG_INMEMORY)
1266 #endif
1267 };
1268
1269 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1270 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1271
1272 {
1273 /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1274 char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1275
1276 newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1277 }
1278
1279 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1280
1281 create_respipe ();
1282
1283 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1284 patch_errno ();
1285 }
1286
1287 void
1288 max_poll_reqs (int nreqs)
1289 PROTOTYPE: $
1290 CODE:
1291 max_poll_reqs = nreqs;
1292
1293 void
1294 max_poll_time (double nseconds)
1295 PROTOTYPE: $
1296 CODE:
1297 max_poll_time = nseconds * AIO_TICKS;
1298
1299 void
1300 min_parallel (int nthreads)
1301 PROTOTYPE: $
1302
1303 void
1304 max_parallel (int nthreads)
1305 PROTOTYPE: $
1306
1307 void
1308 max_idle (int nthreads)
1309 PROTOTYPE: $
1310 CODE:
1311 set_max_idle (nthreads);
1312
1313 int
1314 max_outstanding (int maxreqs)
1315 PROTOTYPE: $
1316 CODE:
1317 RETVAL = max_outstanding;
1318 max_outstanding = maxreqs;
1319 OUTPUT:
1320 RETVAL
1321
1322 int
1323 dbreq_pri (int pri = 0)
1324 PROTOTYPE: ;$
1325 CODE:
1326 RETVAL = next_pri - PRI_BIAS;
1327 if (items > 0)
1328 {
1329 if (pri < PRI_MIN) pri = PRI_MIN;
1330 if (pri > PRI_MAX) pri = PRI_MAX;
1331 next_pri = pri + PRI_BIAS;
1332 }
1333 OUTPUT:
1334 RETVAL
1335
1336 void
1337 dbreq_nice (int nice = 0)
1338 CODE:
1339 nice = next_pri - nice;
1340 if (nice < PRI_MIN) nice = PRI_MIN;
1341 if (nice > PRI_MAX) nice = PRI_MAX;
1342 next_pri = nice + PRI_BIAS;
1343
1344 void
1345 flush ()
1346 PROTOTYPE:
1347 CODE:
1348 while (nreqs)
1349 {
1350 poll_wait ();
1351 poll_cb ();
1352 }
1353
1354 int
1355 poll ()
1356 PROTOTYPE:
1357 CODE:
1358 poll_wait ();
1359 RETVAL = poll_cb ();
1360 OUTPUT:
1361 RETVAL
1362
1363 int
1364 poll_fileno ()
1365 PROTOTYPE:
1366 CODE:
1367 RETVAL = respipe [0];
1368 OUTPUT:
1369 RETVAL
1370
1371 int
1372 poll_cb (...)
1373 PROTOTYPE:
1374 CODE:
1375 RETVAL = poll_cb ();
1376 OUTPUT:
1377 RETVAL
1378
1379 void
1380 poll_wait ()
1381 PROTOTYPE:
1382 CODE:
1383 poll_wait ();
1384
1385 int
1386 nreqs ()
1387 PROTOTYPE:
1388 CODE:
1389 RETVAL = nreqs;
1390 OUTPUT:
1391 RETVAL
1392
1393 int
1394 nready ()
1395 PROTOTYPE:
1396 CODE:
1397 RETVAL = get_nready ();
1398 OUTPUT:
1399 RETVAL
1400
1401 int
1402 npending ()
1403 PROTOTYPE:
1404 CODE:
1405 RETVAL = get_npending ();
1406 OUTPUT:
1407 RETVAL
1408
1409 int
1410 nthreads ()
1411 PROTOTYPE:
1412 CODE:
1413 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1414 RETVAL = started;
1415 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1416 OUTPUT:
1417 RETVAL
1418
1419 void
1420 set_sync_prepare (SV *cb)
1421 PROTOTYPE: &
1422 CODE:
1423 SvREFCNT_dec (prepare_cb);
1424 prepare_cb = newSVsv (cb);
1425
1426 char *
1427 strerror (int errorno = errno)
1428 PROTOTYPE: ;$
1429 CODE:
1430 RETVAL = db_strerror (errorno);
1431 OUTPUT:
1432 RETVAL
1433
1434 void _on_next_submit (SV *cb)
1435 CODE:
1436 SvREFCNT_dec (on_next_submit);
1437 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1438
1439 DB_ENV *
1440 db_env_create (U32 env_flags = 0)
1441 CODE:
1442 {
1443 errno = db_env_create (&RETVAL, env_flags);
1444 if (errno)
1445 croak ("db_env_create: %s", db_strerror (errno));
1446
1447 if (0)
1448 {
1449 RETVAL->set_errcall (RETVAL, debug_errcall);
1450 RETVAL->set_msgcall (RETVAL, debug_msgcall);
1451 }
1452 }
1453 OUTPUT:
1454 RETVAL
1455
1456 void
1457 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1458 PREINIT:
1459 CALLBACK
1460 CODE:
1461 {
1462 dREQ (REQ_ENV_OPEN);
1463 req->env = env;
1464 req->uint1 = open_flags | DB_THREAD;
1465 req->int1 = mode;
1466 req->buf1 = strdup_ornull (db_home);
1467 REQ_SEND;
1468 }
1469
1470 void
1471 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1472 PREINIT:
1473 CALLBACK
1474 CODE:
1475 {
1476 dREQ (REQ_ENV_CLOSE);
1477 req->env = env;
1478 req->uint1 = flags;
1479 REQ_SEND;
1480 ptr_nuke (ST (0));
1481 }
1482
1483 void
1484 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1485 PREINIT:
1486 CALLBACK
1487 CODE:
1488 {
1489 dREQ (REQ_ENV_TXN_CHECKPOINT);
1490 req->env = env;
1491 req->uint1 = kbyte;
1492 req->int1 = min;
1493 req->uint2 = flags;
1494 REQ_SEND;
1495 }
1496
1497 void
1498 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1499 PREINIT:
1500 CALLBACK
1501 CODE:
1502 {
1503 dREQ (REQ_ENV_LOCK_DETECT);
1504 req->env = env;
1505 req->uint1 = flags;
1506 req->uint2 = atype;
1507 /* req->int2 = 0; dummy */
1508 REQ_SEND;
1509 }
1510
1511 void
1512 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1513 PREINIT:
1514 CALLBACK
1515 CODE:
1516 {
1517 dREQ (REQ_ENV_MEMP_SYNC);
1518 req->env = env;
1519 REQ_SEND;
1520 }
1521
1522 void
1523 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1524 PREINIT:
1525 CALLBACK
1526 CODE:
1527 {
1528 dREQ (REQ_ENV_MEMP_TRICKLE);
1529 req->env = env;
1530 req->int1 = percent;
1531 REQ_SEND;
1532 }
1533
1534 void
1535 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1536 PREINIT:
1537 CALLBACK
1538 CODE:
1539 {
1540 dREQ (REQ_ENV_DBREMOVE);
1541 req->env = env;
1542 req->buf1 = strdup_ornull (file);
1543 req->buf2 = strdup_ornull (database);
1544 req->uint1 = flags;
1545 REQ_SEND;
1546 }
1547
1548 void
1549 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)
1550 PREINIT:
1551 CALLBACK
1552 CODE:
1553 {
1554 dREQ (REQ_ENV_DBRENAME);
1555 req->env = env;
1556 req->buf1 = strdup_ornull (file);
1557 req->buf2 = strdup_ornull (database);
1558 req->buf3 = strdup_ornull (newname);
1559 req->uint1 = flags;
1560 REQ_SEND;
1561 }
1562
1563 DB *
1564 db_create (DB_ENV *env = 0, U32 flags = 0)
1565 CODE:
1566 {
1567 errno = db_create (&RETVAL, env, flags);
1568 if (errno)
1569 croak ("db_create: %s", db_strerror (errno));
1570
1571 if (RETVAL)
1572 RETVAL->app_private = (void *)newSVsv (ST (0));
1573 }
1574 OUTPUT:
1575 RETVAL
1576
1577 void
1578 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1579 PREINIT:
1580 CALLBACK
1581 CODE:
1582 {
1583 dREQ (REQ_DB_OPEN);
1584 req->db = db;
1585 req->txn = txnid;
1586 req->buf1 = strdup_ornull (file);
1587 req->buf2 = strdup_ornull (database);
1588 req->int1 = type;
1589 req->uint1 = flags | DB_THREAD;
1590 req->int2 = mode;
1591 REQ_SEND;
1592 }
1593
1594 void
1595 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1596 PREINIT:
1597 CALLBACK
1598 CODE:
1599 {
1600 dREQ (REQ_DB_CLOSE);
1601 req->db = db;
1602 req->uint1 = flags;
1603 req->sv1 = (SV *)db->app_private;
1604 REQ_SEND;
1605 ptr_nuke (ST (0));
1606 }
1607
1608 void
1609 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)
1610 PREINIT:
1611 CALLBACK
1612 CODE:
1613 {
1614 dREQ (REQ_DB_COMPACT);
1615 req->db = db;
1616 req->txn = txn;
1617 sv_to_dbt (&req->dbt1, start);
1618 sv_to_dbt (&req->dbt2, stop);
1619 req->uint1 = flags;
1620 REQ_SEND;
1621 }
1622
1623 void
1624 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1625 PREINIT:
1626 CALLBACK
1627 CODE:
1628 {
1629 dREQ (REQ_DB_SYNC);
1630 req->db = db;
1631 req->uint1 = flags;
1632 REQ_SEND;
1633 }
1634
1635 void
1636 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1637 PREINIT:
1638 CALLBACK
1639 CODE:
1640 {
1641 dREQ (REQ_DB_SYNC);
1642 req->db = db;
1643 req->buf1 = strdup (file);
1644 req->uint1 = flags;
1645 REQ_SEND;
1646 }
1647
1648 void
1649 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
1650 PREINIT:
1651 CALLBACK
1652 CODE:
1653 {
1654 dREQ (REQ_DB_KEY_RANGE);
1655 req->db = db;
1656 req->txn = txn;
1657 sv_to_dbt (&req->dbt1, key);
1658 req->uint1 = flags;
1659 req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1660 REQ_SEND;
1661 }
1662
1663 void
1664 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1665 PREINIT:
1666 CALLBACK
1667 CODE:
1668 {
1669 dREQ (REQ_DB_PUT);
1670 req->db = db;
1671 req->txn = txn;
1672 sv_to_dbt (&req->dbt1, key);
1673 sv_to_dbt (&req->dbt2, data);
1674 req->uint1 = flags;
1675 REQ_SEND;
1676 }
1677
1678 void
1679 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1680 PREINIT:
1681 CALLBACK
1682 CODE:
1683 if (SvREADONLY (data))
1684 croak ("can't modify read-only data scalar in db_get");
1685 {
1686 dREQ (REQ_DB_GET);
1687 req->db = db;
1688 req->txn = txn;
1689 req->uint1 = flags;
1690 sv_to_dbt (&req->dbt1, key);
1691 req->dbt3.flags = DB_DBT_MALLOC;
1692 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1693 REQ_SEND;
1694 }
1695
1696 void
1697 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
1698 PREINIT:
1699 CALLBACK
1700 CODE:
1701 if (SvREADONLY (data))
1702 croak ("can't modify read-only data scalar in db_pget");
1703 {
1704 dREQ (REQ_DB_PGET);
1705 req->db = db;
1706 req->txn = txn;
1707 req->uint1 = flags;
1708 sv_to_dbt (&req->dbt1, key);
1709 sv_to_dbt (&req->dbt2, pkey);
1710 req->dbt3.flags = DB_DBT_MALLOC;
1711 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1712 REQ_SEND;
1713 }
1714
1715 void
1716 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1717 PREINIT:
1718 CALLBACK
1719 CODE:
1720 {
1721 dREQ (REQ_DB_DEL);
1722 req->db = db;
1723 req->txn = txn;
1724 req->uint1 = flags;
1725 sv_to_dbt (&req->dbt1, key);
1726 REQ_SEND;
1727 }
1728
1729 void
1730 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1731 PREINIT:
1732 CALLBACK
1733 CODE:
1734 {
1735 dREQ (REQ_TXN_COMMIT);
1736 req->txn = txn;
1737 req->uint1 = flags;
1738 REQ_SEND;
1739 ptr_nuke (ST (0));
1740 }
1741
1742 void
1743 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1744 PREINIT:
1745 CALLBACK
1746 CODE:
1747 {
1748 dREQ (REQ_TXN_ABORT);
1749 req->txn = txn;
1750 REQ_SEND;
1751 ptr_nuke (ST (0));
1752 }
1753
1754 void
1755 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1756 PREINIT:
1757 CALLBACK
1758 CODE:
1759 {
1760 dREQ (REQ_TXN_FINISH);
1761 req->txn = txn;
1762 req->uint1 = flags;
1763 REQ_SEND;
1764 ptr_nuke (ST (0));
1765 }
1766
1767 void
1768 db_c_close (DBC *dbc, SV *callback = 0)
1769 PREINIT:
1770 CALLBACK
1771 CODE:
1772 {
1773 dREQ (REQ_C_CLOSE);
1774 req->dbc = dbc;
1775 REQ_SEND;
1776 ptr_nuke (ST (0));
1777 }
1778
1779 void
1780 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1781 PREINIT:
1782 CALLBACK
1783 CODE:
1784 {
1785 dREQ (REQ_C_COUNT);
1786 req->dbc = dbc;
1787 req->sv1 = SvREFCNT_inc (count);
1788 REQ_SEND;
1789 }
1790
1791 void
1792 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1793 PREINIT:
1794 CALLBACK
1795 CODE:
1796 {
1797 dREQ (REQ_C_PUT);
1798 req->dbc = dbc;
1799 sv_to_dbt (&req->dbt1, key);
1800 sv_to_dbt (&req->dbt2, data);
1801 req->uint1 = flags;
1802 REQ_SEND;
1803 }
1804
1805 void
1806 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1807 PREINIT:
1808 CALLBACK
1809 CODE:
1810 {
1811 dREQ (REQ_C_GET);
1812 req->dbc = dbc;
1813 req->uint1 = flags;
1814 if ((flags & DB_SET) == DB_SET
1815 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1816 sv_to_dbt (&req->dbt1, key);
1817 else
1818 req->dbt1.flags = DB_DBT_MALLOC;
1819
1820 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1821
1822 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1823 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1824 sv_to_dbt (&req->dbt3, data);
1825 else
1826 req->dbt3.flags = DB_DBT_MALLOC;
1827
1828 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1829 REQ_SEND;
1830 }
1831
1832 void
1833 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
1834 PREINIT:
1835 CALLBACK
1836 CODE:
1837 {
1838 dREQ (REQ_C_PGET);
1839 req->dbc = dbc;
1840 req->uint1 = flags;
1841 if ((flags & DB_SET) == DB_SET
1842 || (flags & DB_SET_RANGE) == DB_SET_RANGE)
1843 sv_to_dbt (&req->dbt1, key);
1844 else
1845 req->dbt1.flags = DB_DBT_MALLOC;
1846
1847 req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1848
1849 req->dbt2.flags = DB_DBT_MALLOC;
1850 req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1851
1852 if ((flags & DB_GET_BOTH) == DB_GET_BOTH
1853 || (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
1854 sv_to_dbt (&req->dbt3, data);
1855 else
1856 req->dbt3.flags = DB_DBT_MALLOC;
1857
1858 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1859 REQ_SEND;
1860 }
1861
1862 void
1863 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
1864 PREINIT:
1865 CALLBACK
1866 CODE:
1867 {
1868 dREQ (REQ_C_DEL);
1869 req->dbc = dbc;
1870 req->uint1 = flags;
1871 REQ_SEND;
1872 }
1873
1874
1875 void
1876 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
1877 PREINIT:
1878 CALLBACK
1879 CODE:
1880 {
1881 dREQ (REQ_SEQ_OPEN);
1882 req->seq = seq;
1883 req->txn = txnid;
1884 req->uint1 = flags | DB_THREAD;
1885 sv_to_dbt (&req->dbt1, key);
1886 REQ_SEND;
1887 }
1888
1889 void
1890 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
1891 PREINIT:
1892 CALLBACK
1893 CODE:
1894 {
1895 dREQ (REQ_SEQ_CLOSE);
1896 req->seq = seq;
1897 req->uint1 = flags;
1898 REQ_SEND;
1899 ptr_nuke (ST (0));
1900 }
1901
1902 void
1903 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
1904 PREINIT:
1905 CALLBACK
1906 CODE:
1907 {
1908 dREQ (REQ_SEQ_GET);
1909 req->seq = seq;
1910 req->txn = txnid;
1911 req->int1 = delta;
1912 req->uint1 = flags;
1913 req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
1914 REQ_SEND;
1915 }
1916
1917 void
1918 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
1919 PREINIT:
1920 CALLBACK
1921 CODE:
1922 {
1923 dREQ (REQ_SEQ_REMOVE);
1924 req->seq = seq;
1925 req->txn = txnid;
1926 req->uint1 = flags;
1927 REQ_SEND;
1928 }
1929
1930
1931 MODULE = BDB PACKAGE = BDB::Env
1932
1933 void
1934 DESTROY (DB_ENV_ornuked *env)
1935 CODE:
1936 if (env)
1937 env->close (env, 0);
1938
1939 int set_data_dir (DB_ENV *env, const char *dir)
1940 CODE:
1941 RETVAL = env->set_data_dir (env, dir);
1942 OUTPUT:
1943 RETVAL
1944
1945 int set_tmp_dir (DB_ENV *env, const char *dir)
1946 CODE:
1947 RETVAL = env->set_tmp_dir (env, dir);
1948 OUTPUT:
1949 RETVAL
1950
1951 int set_lg_dir (DB_ENV *env, const char *dir)
1952 CODE:
1953 RETVAL = env->set_lg_dir (env, dir);
1954 OUTPUT:
1955 RETVAL
1956
1957 int set_shm_key (DB_ENV *env, long shm_key)
1958 CODE:
1959 RETVAL = env->set_shm_key (env, shm_key);
1960 OUTPUT:
1961 RETVAL
1962
1963 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1964 CODE:
1965 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1966 OUTPUT:
1967 RETVAL
1968
1969 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1970 CODE:
1971 RETVAL = env->set_flags (env, flags, onoff);
1972 OUTPUT:
1973 RETVAL
1974
1975 #if DB_VERSION_MINOR >= 7
1976
1977 int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
1978 CODE:
1979 RETVAL = env->set_intermediate_dir_mode (env, mode);
1980 OUTPUT:
1981 RETVAL
1982
1983 int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
1984 CODE:
1985 RETVAL = env->log_set_config (env, flags, onoff);
1986 OUTPUT:
1987 RETVAL
1988
1989 #endif
1990
1991
1992 void set_errfile (DB_ENV *env, FILE *errfile = 0)
1993 CODE:
1994 env->set_errfile (env, errfile);
1995
1996 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
1997 CODE:
1998 env->set_msgfile (env, msgfile);
1999
2000 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2001 CODE:
2002 RETVAL = env->set_verbose (env, which, onoff);
2003 OUTPUT:
2004 RETVAL
2005
2006 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2007 CODE:
2008 RETVAL = env->set_encrypt (env, password, flags);
2009 OUTPUT:
2010 RETVAL
2011
2012 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2013 CODE:
2014 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2015 OUTPUT:
2016 RETVAL
2017
2018 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2019 CODE:
2020 RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2021 OUTPUT:
2022 RETVAL
2023
2024 int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2025 CODE:
2026 RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2027 OUTPUT:
2028 RETVAL
2029
2030 int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2031 CODE:
2032 RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2033 OUTPUT:
2034 RETVAL
2035
2036 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2037 CODE:
2038 RETVAL = env->set_lk_detect (env, detect);
2039 OUTPUT:
2040 RETVAL
2041
2042 int set_lk_max_lockers (DB_ENV *env, U32 max)
2043 CODE:
2044 RETVAL = env->set_lk_max_lockers (env, max);
2045 OUTPUT:
2046 RETVAL
2047
2048 int set_lk_max_locks (DB_ENV *env, U32 max)
2049 CODE:
2050 RETVAL = env->set_lk_max_locks (env, max);
2051 OUTPUT:
2052 RETVAL
2053
2054 int set_lk_max_objects (DB_ENV *env, U32 max)
2055 CODE:
2056 RETVAL = env->set_lk_max_objects (env, max);
2057 OUTPUT:
2058 RETVAL
2059
2060 int set_lg_bsize (DB_ENV *env, U32 max)
2061 CODE:
2062 RETVAL = env->set_lg_bsize (env, max);
2063 OUTPUT:
2064 RETVAL
2065
2066 int set_lg_max (DB_ENV *env, U32 max)
2067 CODE:
2068 RETVAL = env->set_lg_max (env, max);
2069 OUTPUT:
2070 RETVAL
2071
2072 int mutex_set_max (DB_ENV *env, U32 max)
2073 CODE:
2074 RETVAL = env->mutex_set_max (env, max);
2075 OUTPUT:
2076 RETVAL
2077
2078 int mutex_set_increment (DB_ENV *env, U32 increment)
2079 CODE:
2080 RETVAL = env->mutex_set_increment (env, increment);
2081 OUTPUT:
2082 RETVAL
2083
2084 int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2085 CODE:
2086 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2087 OUTPUT:
2088 RETVAL
2089
2090 int mutex_set_align (DB_ENV *env, U32 align)
2091 CODE:
2092 RETVAL = env->mutex_set_align (env, align);
2093 OUTPUT:
2094 RETVAL
2095
2096 DB_TXN *
2097 txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2098 CODE:
2099 errno = env->txn_begin (env, parent, &RETVAL, flags);
2100 if (errno)
2101 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2102 OUTPUT:
2103 RETVAL
2104
2105 MODULE = BDB PACKAGE = BDB::Db
2106
2107 void
2108 DESTROY (DB_ornuked *db)
2109 CODE:
2110 if (db)
2111 {
2112 SV *env = (SV *)db->app_private;
2113 db->close (db, 0);
2114 SvREFCNT_dec (env);
2115 }
2116
2117 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2118 CODE:
2119 RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2120 OUTPUT:
2121 RETVAL
2122
2123 int set_flags (DB *db, U32 flags)
2124 CODE:
2125 RETVAL = db->set_flags (db, flags);
2126 OUTPUT:
2127 RETVAL
2128
2129 int set_encrypt (DB *db, const char *password, U32 flags)
2130 CODE:
2131 RETVAL = db->set_encrypt (db, password, flags);
2132 OUTPUT:
2133 RETVAL
2134
2135 int set_lorder (DB *db, int lorder)
2136 CODE:
2137 RETVAL = db->set_lorder (db, lorder);
2138 OUTPUT:
2139 RETVAL
2140
2141 int set_bt_minkey (DB *db, U32 minkey)
2142 CODE:
2143 RETVAL = db->set_bt_minkey (db, minkey);
2144 OUTPUT:
2145 RETVAL
2146
2147 int set_re_delim (DB *db, int delim)
2148 CODE:
2149 RETVAL = db->set_re_delim (db, delim);
2150 OUTPUT:
2151 RETVAL
2152
2153 int set_re_pad (DB *db, int re_pad)
2154 CODE:
2155 RETVAL = db->set_re_pad (db, re_pad);
2156 OUTPUT:
2157 RETVAL
2158
2159 int set_re_source (DB *db, char *source)
2160 CODE:
2161 RETVAL = db->set_re_source (db, source);
2162 OUTPUT:
2163 RETVAL
2164
2165 int set_re_len (DB *db, U32 re_len)
2166 CODE:
2167 RETVAL = db->set_re_len (db, re_len);
2168 OUTPUT:
2169 RETVAL
2170
2171 int set_h_ffactor (DB *db, U32 h_ffactor)
2172 CODE:
2173 RETVAL = db->set_h_ffactor (db, h_ffactor);
2174 OUTPUT:
2175 RETVAL
2176
2177 int set_h_nelem (DB *db, U32 h_nelem)
2178 CODE:
2179 RETVAL = db->set_h_nelem (db, h_nelem);
2180 OUTPUT:
2181 RETVAL
2182
2183 int set_q_extentsize (DB *db, U32 extentsize)
2184 CODE:
2185 RETVAL = db->set_q_extentsize (db, extentsize);
2186 OUTPUT:
2187 RETVAL
2188
2189 DBC *
2190 cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2191 CODE:
2192 errno = db->cursor (db, txn, &RETVAL, flags);
2193 if (errno)
2194 croak ("DB->cursor: %s", db_strerror (errno));
2195 OUTPUT:
2196 RETVAL
2197
2198 DB_SEQUENCE *
2199 sequence (DB *db, U32 flags = 0)
2200 CODE:
2201 {
2202 errno = db_sequence_create (&RETVAL, db, flags);
2203 if (errno)
2204 croak ("db_sequence_create: %s", db_strerror (errno));
2205 }
2206 OUTPUT:
2207 RETVAL
2208
2209
2210 MODULE = BDB PACKAGE = BDB::Txn
2211
2212 void
2213 DESTROY (DB_TXN_ornuked *txn)
2214 CODE:
2215 if (txn)
2216 txn->abort (txn);
2217
2218 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2219 CODE:
2220 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2221 OUTPUT:
2222 RETVAL
2223
2224 int failed (DB_TXN *txn)
2225 CODE:
2226 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2227 OUTPUT:
2228 RETVAL
2229
2230
2231 MODULE = BDB PACKAGE = BDB::Cursor
2232
2233 void
2234 DESTROY (DBC_ornuked *dbc)
2235 CODE:
2236 if (dbc)
2237 dbc->c_close (dbc);
2238
2239 #if DB_VERSION_MINOR >= 6
2240
2241 int set_priority (DBC *dbc, int priority)
2242 CODE:
2243 dbc->set_priority (dbc, priority);
2244
2245 #endif
2246
2247 MODULE = BDB PACKAGE = BDB::Sequence
2248
2249 void
2250 DESTROY (DB_SEQUENCE_ornuked *seq)
2251 CODE:
2252 if (seq)
2253 seq->close (seq, 0);
2254
2255 int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2256 CODE:
2257 RETVAL = seq->initial_value (seq, value);
2258 OUTPUT:
2259 RETVAL
2260
2261 int set_cachesize (DB_SEQUENCE *seq, U32 size)
2262 CODE:
2263 RETVAL = seq->set_cachesize (seq, size);
2264 OUTPUT:
2265 RETVAL
2266
2267 int set_flags (DB_SEQUENCE *seq, U32 flags)
2268 CODE:
2269 RETVAL = seq->set_flags (seq, flags);
2270 OUTPUT:
2271 RETVAL
2272
2273 int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2274 CODE:
2275 RETVAL = seq->set_range (seq, min, max);
2276 OUTPUT:
2277 RETVAL
2278
2279