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Revision: 1.63
Committed: Tue Oct 21 02:21:25 2008 UTC (15 years, 7 months ago) by root
Branch: MAIN
CVS Tags: rel-1_81
Changes since 1.62: +49 -1 lines
Log Message: 
1.81

File Contents

# User Rev Content
1 root 1.48 #define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2    
3 root 1.11 #include "xthread.h"
4 root 1.1
5     #include <errno.h>
6    
7     #include "EXTERN.h"
8     #include "perl.h"
9     #include "XSUB.h"
10    
11 root 1.13 // perl stupidly defines these as macros, breaking
12     // lots and lots of code.
13     #undef open
14     #undef close
15     #undef abort
16     #undef malloc
17     #undef free
18     #undef send
19    
20 root 1.1 #include <stddef.h>
21     #include <stdlib.h>
22     #include <errno.h>
23     #include <sys/types.h>
24     #include <limits.h>
25     #include <fcntl.h>
26 root 1.2
27 root 1.13 #ifndef _WIN32
28     # include <sys/time.h>
29     # include <unistd.h>
30     #endif
31    
32 root 1.2 #include <db.h>
33 root 1.1
34 root 1.47 #if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
35     # error you need Berkeley DB 4.3 or a newer 4.x version installed
36 root 1.10 #endif
37    
38 root 1.1 /* number of seconds after which idle threads exit */
39     #define IDLE_TIMEOUT 10
40    
41 root 1.54 typedef SV SV_mutable;
42    
43 root 1.8 typedef DB_ENV DB_ENV_ornull;
44     typedef DB_TXN DB_TXN_ornull;
45     typedef DBC DBC_ornull;
46     typedef DB DB_ornull;
47 root 1.5
48 root 1.30 typedef DB_ENV DB_ENV_ornuked;
49     typedef DB_TXN DB_TXN_ornuked;
50     typedef DBC DBC_ornuked;
51     typedef DB DB_ornuked;
52 root 1.47
53     #if DB_VERSION_MINOR >= 3
54     typedef DB_SEQUENCE DB_SEQUENCE_ornull;
55 root 1.30 typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
56 root 1.47 #endif
57 root 1.30
58 root 1.33 typedef char *bdb_filename;
59 root 1.1
60 root 1.3 static SV *prepare_cb;
61    
62 root 1.16 #if DB_VERSION_MINOR >= 6
63     # define c_close close
64     # define c_count count
65     # define c_del del
66     # define c_dup dup
67     # define c_get get
68     # define c_pget pget
69     # define c_put put
70     #endif
71    
72 root 1.34 static char *
73     get_bdb_filename (SV *sv)
74     {
75 root 1.36 if (!SvOK (sv))
76     return 0;
77    
78 root 1.35 #if _WIN32
79 root 1.36 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
80     {
81     STRLEN len;
82     char *src = SvPVbyte (sv, len);
83     SV *t1 = sv_newmortal ();
84     SV *t2 = sv_newmortal ();
85    
86     sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
87     sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
88    
89     len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
90     len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
91     SvPOK_only (t2);
92     SvPVX (t2)[len] = 0;
93     SvCUR_set (t2, len);
94    
95     return SvPVX (t2);
96     }
97 root 1.34 #else
98 root 1.36 return SvPVbyte_nolen (sv);
99 root 1.34 #endif
100     }
101    
102 root 1.14 static void
103     debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
104     {
105     printf ("err[%s]\n", msg);
106     }
107    
108     static void
109     debug_msgcall (const DB_ENV *dbenv, const char *msg)
110     {
111     printf ("msg[%s]\n", msg);
112     }
113    
114 root 1.13 static char *
115 root 1.3 strdup_ornull (const char *s)
116 root 1.2 {
117 root 1.3 return s ? strdup (s) : 0;
118     }
119    
120 root 1.13 static void
121 root 1.5 sv_to_dbt (DBT *dbt, SV *sv)
122     {
123     STRLEN len;
124     char *data = SvPVbyte (sv, len);
125    
126     dbt->data = malloc (len);
127     memcpy (dbt->data, data, len);
128     dbt->size = len;
129 root 1.6 dbt->flags = DB_DBT_REALLOC;
130 root 1.5 }
131    
132 root 1.13 static void
133 root 1.5 dbt_to_sv (SV *sv, DBT *dbt)
134     {
135 root 1.6 if (sv)
136     {
137     SvREADONLY_off (sv);
138 root 1.55
139     if (dbt->data)
140     sv_setpvn_mg (sv, dbt->data, dbt->size);
141     else
142     sv_setsv_mg (sv, &PL_sv_undef);
143    
144 root 1.6 SvREFCNT_dec (sv);
145     }
146 root 1.5
147 root 1.55 free (dbt->data);
148 root 1.5 }
149    
150 root 1.3 enum {
151 root 1.1 REQ_QUIT,
152 root 1.8 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
153 root 1.39 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
154 root 1.63 REQ_ENV_LOG_ARCHIVE,
155 root 1.26 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
156 root 1.45 REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
157 root 1.17 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
158 root 1.6 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
159 root 1.8 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
160 root 1.1 };
161    
162 root 1.28 typedef struct bdb_cb
163 root 1.1 {
164 root 1.28 struct bdb_cb *volatile next;
165 root 1.2 SV *callback;
166 root 1.3 int type, pri, result;
167 root 1.2
168     DB_ENV *env;
169     DB *db;
170     DB_TXN *txn;
171 root 1.6 DBC *dbc;
172    
173     UV uv1;
174 root 1.2 int int1, int2;
175     U32 uint1, uint2;
176 root 1.39 char *buf1, *buf2, *buf3;
177 root 1.6 SV *sv1, *sv2, *sv3;
178 root 1.3
179     DBT dbt1, dbt2, dbt3;
180 root 1.8 DB_KEY_RANGE key_range;
181 root 1.47 #if DB_VERSION_MINOR >= 3
182 root 1.8 DB_SEQUENCE *seq;
183     db_seq_t seq_t;
184 root 1.47 #endif
185 root 1.50
186     SV *rsv1, *rsv2; // keep some request objects alive
187 root 1.28 } bdb_cb;
188 root 1.1
189 root 1.28 typedef bdb_cb *bdb_req;
190 root 1.1
191     enum {
192     PRI_MIN = -4,
193     PRI_MAX = 4,
194    
195     DEFAULT_PRI = 0,
196     PRI_BIAS = -PRI_MIN,
197     NUM_PRI = PRI_MAX + PRI_BIAS + 1,
198     };
199    
200     #define AIO_TICKS ((1000000 + 1023) >> 10)
201    
202 root 1.37 static SV *on_next_submit;
203    
204 root 1.1 static unsigned int max_poll_time = 0;
205     static unsigned int max_poll_reqs = 0;
206    
207     /* calculcate time difference in ~1/AIO_TICKS of a second */
208     static int tvdiff (struct timeval *tv1, struct timeval *tv2)
209     {
210     return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
211     + ((tv2->tv_usec - tv1->tv_usec) >> 10);
212     }
213    
214     static int next_pri = DEFAULT_PRI + PRI_BIAS;
215    
216     static unsigned int started, idle, wanted;
217    
218     /* worker threads management */
219 root 1.12 static mutex_t wrklock = X_MUTEX_INIT;
220 root 1.1
221     typedef struct worker {
222     /* locked by wrklock */
223     struct worker *prev, *next;
224    
225 root 1.11 thread_t tid;
226 root 1.1
227     /* locked by reslock, reqlock or wrklock */
228 root 1.28 bdb_req req; /* currently processed request */
229 root 1.1 void *dbuf;
230     DIR *dirp;
231     } worker;
232    
233     static worker wrk_first = { &wrk_first, &wrk_first, 0 };
234    
235     static void worker_clear (worker *wrk)
236     {
237     }
238    
239     static void worker_free (worker *wrk)
240     {
241     wrk->next->prev = wrk->prev;
242     wrk->prev->next = wrk->next;
243    
244     free (wrk);
245     }
246    
247     static volatile unsigned int nreqs, nready, npending;
248     static volatile unsigned int max_idle = 4;
249     static volatile unsigned int max_outstanding = 0xffffffff;
250 root 1.19 static int respipe_osf [2], respipe [2] = { -1, -1 };
251 root 1.1
252 root 1.12 static mutex_t reslock = X_MUTEX_INIT;
253     static mutex_t reqlock = X_MUTEX_INIT;
254     static cond_t reqwait = X_COND_INIT;
255 root 1.1
256     #if WORDACCESS_UNSAFE
257    
258 root 1.34 static unsigned int get_nready (void)
259 root 1.1 {
260     unsigned int retval;
261    
262 root 1.12 X_LOCK (reqlock);
263 root 1.1 retval = nready;
264 root 1.12 X_UNLOCK (reqlock);
265 root 1.1
266     return retval;
267     }
268    
269 root 1.34 static unsigned int get_npending (void)
270 root 1.1 {
271     unsigned int retval;
272    
273 root 1.12 X_LOCK (reslock);
274 root 1.1 retval = npending;
275 root 1.12 X_UNLOCK (reslock);
276 root 1.1
277     return retval;
278     }
279    
280 root 1.34 static unsigned int get_nthreads (void)
281 root 1.1 {
282     unsigned int retval;
283    
284 root 1.12 X_LOCK (wrklock);
285 root 1.1 retval = started;
286 root 1.12 X_UNLOCK (wrklock);
287 root 1.1
288     return retval;
289     }
290    
291     #else
292    
293     # define get_nready() nready
294     # define get_npending() npending
295     # define get_nthreads() started
296    
297     #endif
298    
299     /*
300     * a somewhat faster data structure might be nice, but
301     * with 8 priorities this actually needs <20 insns
302     * per shift, the most expensive operation.
303     */
304     typedef struct {
305 root 1.28 bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
306 root 1.1 int size;
307     } reqq;
308    
309     static reqq req_queue;
310     static reqq res_queue;
311    
312 root 1.28 int reqq_push (reqq *q, bdb_req req)
313 root 1.1 {
314     int pri = req->pri;
315     req->next = 0;
316    
317     if (q->qe[pri])
318     {
319     q->qe[pri]->next = req;
320     q->qe[pri] = req;
321     }
322     else
323     q->qe[pri] = q->qs[pri] = req;
324    
325     return q->size++;
326     }
327    
328 root 1.28 bdb_req reqq_shift (reqq *q)
329 root 1.1 {
330     int pri;
331    
332     if (!q->size)
333     return 0;
334    
335     --q->size;
336    
337     for (pri = NUM_PRI; pri--; )
338     {
339 root 1.28 bdb_req req = q->qs[pri];
340 root 1.1
341     if (req)
342     {
343     if (!(q->qs[pri] = req->next))
344     q->qe[pri] = 0;
345    
346     return req;
347     }
348     }
349    
350     abort ();
351     }
352    
353 root 1.34 static int poll_cb (void);
354 root 1.28 static void req_free (bdb_req req);
355 root 1.1
356 root 1.28 static int req_invoke (bdb_req req)
357 root 1.1 {
358 root 1.53 switch (req->type)
359 root 1.1 {
360 root 1.53 case REQ_DB_CLOSE:
361     SvREFCNT_dec (req->sv1);
362     break;
363 root 1.1
364 root 1.53 case REQ_DB_GET:
365     case REQ_DB_PGET:
366     case REQ_C_GET:
367     case REQ_C_PGET:
368 root 1.54 case REQ_DB_PUT:
369     case REQ_C_PUT:
370 root 1.53 dbt_to_sv (req->sv1, &req->dbt1);
371     dbt_to_sv (req->sv2, &req->dbt2);
372     dbt_to_sv (req->sv3, &req->dbt3);
373     break;
374 root 1.5
375 root 1.53 case REQ_DB_KEY_RANGE:
376     {
377     AV *av = newAV ();
378 root 1.23
379 root 1.53 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 root 1.63 av = (AV *)newRV_noinc ((SV *)av);
384    
385 root 1.53 SvREADONLY_off (req->sv1);
386     sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
387 root 1.63 SvREFCNT_dec (av);
388 root 1.53 SvREFCNT_dec (req->sv1);
389     }
390     break;
391 root 1.8
392 root 1.47 #if DB_VERSION_MINOR >= 3
393 root 1.53 case REQ_SEQ_GET:
394     SvREADONLY_off (req->sv1);
395 root 1.8
396 root 1.53 if (sizeof (IV) > 4)
397     sv_setiv_mg (req->sv1, (IV)req->seq_t);
398     else
399     sv_setnv_mg (req->sv1, (NV)req->seq_t);
400 root 1.8
401 root 1.53 SvREFCNT_dec (req->sv1);
402     break;
403 root 1.47 #endif
404 root 1.63
405     case REQ_ENV_LOG_ARCHIVE:
406     {
407     AV *av = newAV ();
408     char **listp = (char **)req->buf1;
409    
410     if (listp)
411     while (*listp)
412     av_push (av, newSVpv (*listp, 0)), ++listp;
413    
414     av = (AV *)newRV_noinc ((SV *)av);
415    
416     SvREADONLY_off (req->sv1);
417     sv_setsv_mg (req->sv1, (SV *)av);
418     SvREFCNT_dec (av);
419     SvREFCNT_dec (req->sv1);
420     }
421     break;
422 root 1.53 }
423    
424     errno = req->result;
425    
426     if (req->callback)
427     {
428     dSP;
429 root 1.1
430 root 1.53 ENTER;
431     SAVETMPS;
432     PUSHMARK (SP);
433 root 1.3
434 root 1.1 PUTBACK;
435     call_sv (req->callback, G_VOID | G_EVAL);
436     SPAGAIN;
437    
438     FREETMPS;
439     LEAVE;
440 root 1.53
441     return !SvTRUE (ERRSV);
442 root 1.1 }
443    
444 root 1.53 return 1;
445 root 1.1 }
446    
447 root 1.28 static void req_free (bdb_req req)
448 root 1.1 {
449 root 1.43 SvREFCNT_dec (req->callback);
450    
451 root 1.50 SvREFCNT_dec (req->rsv1);
452     SvREFCNT_dec (req->rsv2);
453    
454 root 1.2 free (req->buf1);
455     free (req->buf2);
456 root 1.39 free (req->buf3);
457 root 1.43
458 root 1.1 Safefree (req);
459     }
460    
461 root 1.13 #ifdef USE_SOCKETS_AS_HANDLES
462     # define TO_SOCKET(x) (win32_get_osfhandle (x))
463     #else
464     # define TO_SOCKET(x) (x)
465     #endif
466    
467     static void
468 root 1.34 create_respipe (void)
469 root 1.13 {
470 root 1.21 #ifdef _WIN32
471     int arg; /* argg */
472     #endif
473 root 1.19 int old_readfd = respipe [0];
474    
475     if (respipe [1] >= 0)
476     respipe_close (TO_SOCKET (respipe [1]));
477    
478     #ifdef _WIN32
479     if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
480     #else
481     if (pipe (respipe))
482     #endif
483     croak ("unable to initialize result pipe");
484    
485     if (old_readfd >= 0)
486     {
487     if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
488     croak ("unable to initialize result pipe(2)");
489    
490     respipe_close (respipe [0]);
491     respipe [0] = old_readfd;
492     }
493    
494 root 1.13 #ifdef _WIN32
495 root 1.21 arg = 1;
496 root 1.19 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
497     || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
498 root 1.13 #else
499 root 1.19 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
500     || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
501 root 1.13 #endif
502 root 1.19 croak ("unable to initialize result pipe(3)");
503 root 1.13
504     respipe_osf [0] = TO_SOCKET (respipe [0]);
505     respipe_osf [1] = TO_SOCKET (respipe [1]);
506     }
507    
508 root 1.53 static void bdb_request (bdb_req req);
509 root 1.13 X_THREAD_PROC (bdb_proc);
510 root 1.1
511     static void start_thread (void)
512     {
513     worker *wrk = calloc (1, sizeof (worker));
514    
515     if (!wrk)
516     croak ("unable to allocate worker thread data");
517    
518 root 1.12 X_LOCK (wrklock);
519 root 1.13 if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
520 root 1.1 {
521     wrk->prev = &wrk_first;
522     wrk->next = wrk_first.next;
523     wrk_first.next->prev = wrk;
524     wrk_first.next = wrk;
525     ++started;
526     }
527     else
528     free (wrk);
529    
530 root 1.12 X_UNLOCK (wrklock);
531 root 1.1 }
532    
533 root 1.34 static void maybe_start_thread (void)
534 root 1.1 {
535     if (get_nthreads () >= wanted)
536     return;
537    
538     /* todo: maybe use idle here, but might be less exact */
539     if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
540     return;
541    
542     start_thread ();
543     }
544    
545 root 1.28 static void req_send (bdb_req req)
546 root 1.1 {
547 root 1.3 SV *wait_callback = 0;
548    
549 root 1.37 if (on_next_submit)
550     {
551     dSP;
552     SV *cb = sv_2mortal (on_next_submit);
553    
554     on_next_submit = 0;
555    
556     PUSHMARK (SP);
557     PUTBACK;
558     call_sv (cb, G_DISCARD | G_EVAL);
559 root 1.49 SPAGAIN;
560 root 1.37 }
561    
562 root 1.3 // synthesize callback if none given
563 root 1.41 if (!req->callback)
564 root 1.3 {
565 root 1.53 if (SvOK (prepare_cb))
566     {
567     int count;
568 root 1.13
569 root 1.53 dSP;
570     PUSHMARK (SP);
571     PUTBACK;
572     count = call_sv (prepare_cb, G_ARRAY);
573     SPAGAIN;
574 root 1.3
575 root 1.53 if (count != 2)
576 root 1.54 croak ("sync prepare callback must return exactly two values\n");
577 root 1.3
578 root 1.53 wait_callback = POPs;
579     req->callback = SvREFCNT_inc (POPs);
580     }
581     else
582     {
583     // execute request synchronously
584     bdb_request (req);
585     req_invoke (req);
586     req_free (req);
587     return;
588     }
589 root 1.3 }
590    
591 root 1.1 ++nreqs;
592    
593 root 1.12 X_LOCK (reqlock);
594 root 1.1 ++nready;
595     reqq_push (&req_queue, req);
596 root 1.12 X_COND_SIGNAL (reqwait);
597     X_UNLOCK (reqlock);
598 root 1.1
599     maybe_start_thread ();
600 root 1.3
601     if (wait_callback)
602     {
603     dSP;
604     PUSHMARK (SP);
605     PUTBACK;
606     call_sv (wait_callback, G_DISCARD);
607     }
608 root 1.1 }
609    
610     static void end_thread (void)
611     {
612 root 1.52 bdb_req req = calloc (1, sizeof (bdb_cb));
613 root 1.1
614     req->type = REQ_QUIT;
615     req->pri = PRI_MAX + PRI_BIAS;
616    
617 root 1.12 X_LOCK (reqlock);
618 root 1.1 reqq_push (&req_queue, req);
619 root 1.12 X_COND_SIGNAL (reqwait);
620     X_UNLOCK (reqlock);
621 root 1.1
622 root 1.12 X_LOCK (wrklock);
623 root 1.1 --started;
624 root 1.12 X_UNLOCK (wrklock);
625 root 1.1 }
626    
627     static void set_max_idle (int nthreads)
628     {
629 root 1.12 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
630 root 1.1 max_idle = nthreads <= 0 ? 1 : nthreads;
631 root 1.12 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
632 root 1.1 }
633    
634     static void min_parallel (int nthreads)
635     {
636     if (wanted < nthreads)
637     wanted = nthreads;
638     }
639    
640     static void max_parallel (int nthreads)
641     {
642     if (wanted > nthreads)
643     wanted = nthreads;
644    
645     while (started > wanted)
646     end_thread ();
647     }
648    
649 root 1.34 static void poll_wait (void)
650 root 1.1 {
651     fd_set rfd;
652    
653     while (nreqs)
654     {
655     int size;
656 root 1.12 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
657 root 1.1 size = res_queue.size;
658 root 1.12 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
659 root 1.1
660     if (size)
661     return;
662    
663     maybe_start_thread ();
664    
665 root 1.13 FD_ZERO (&rfd);
666     FD_SET (respipe [0], &rfd);
667 root 1.1
668 root 1.13 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
669 root 1.1 }
670     }
671    
672 root 1.34 static int poll_cb (void)
673 root 1.1 {
674     dSP;
675     int count = 0;
676     int maxreqs = max_poll_reqs;
677     int do_croak = 0;
678     struct timeval tv_start, tv_now;
679 root 1.28 bdb_req req;
680 root 1.1
681     if (max_poll_time)
682     gettimeofday (&tv_start, 0);
683    
684     for (;;)
685     {
686     for (;;)
687     {
688     maybe_start_thread ();
689    
690 root 1.12 X_LOCK (reslock);
691 root 1.1 req = reqq_shift (&res_queue);
692    
693     if (req)
694     {
695     --npending;
696    
697     if (!res_queue.size)
698     {
699     /* read any signals sent by the worker threads */
700     char buf [4];
701 root 1.13 while (respipe_read (respipe [0], buf, 4) == 4)
702 root 1.1 ;
703     }
704     }
705    
706 root 1.12 X_UNLOCK (reslock);
707 root 1.1
708     if (!req)
709     break;
710    
711     --nreqs;
712    
713     if (!req_invoke (req))
714     {
715     req_free (req);
716     croak (0);
717     }
718    
719     count++;
720    
721     req_free (req);
722    
723     if (maxreqs && !--maxreqs)
724     break;
725    
726     if (max_poll_time)
727     {
728     gettimeofday (&tv_now, 0);
729    
730     if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
731     break;
732     }
733     }
734    
735     if (nreqs <= max_outstanding)
736     break;
737    
738     poll_wait ();
739    
740     ++maxreqs;
741     }
742    
743     return count;
744     }
745    
746     /*****************************************************************************/
747    
748 root 1.51 static void
749     bdb_request (bdb_req req)
750     {
751     switch (req->type)
752     {
753     case REQ_ENV_OPEN:
754     req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
755     break;
756    
757     case REQ_ENV_CLOSE:
758     req->result = req->env->close (req->env, req->uint1);
759     break;
760    
761     case REQ_ENV_TXN_CHECKPOINT:
762     req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
763     break;
764    
765     case REQ_ENV_LOCK_DETECT:
766     req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
767     break;
768    
769     case REQ_ENV_MEMP_SYNC:
770     req->result = req->env->memp_sync (req->env, 0);
771     break;
772    
773     case REQ_ENV_MEMP_TRICKLE:
774     req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
775     break;
776    
777     case REQ_ENV_DBREMOVE:
778     req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
779     break;
780    
781     case REQ_ENV_DBRENAME:
782     req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
783     break;
784    
785     case REQ_DB_OPEN:
786     req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
787     break;
788    
789     case REQ_DB_CLOSE:
790     req->result = req->db->close (req->db, req->uint1);
791     break;
792    
793     #if DB_VERSION_MINOR >= 4
794     case REQ_DB_COMPACT:
795 root 1.62 req->result = req->db->compact (req->db, req->txn, req->dbt1.data ? &req->dbt1 : 0, req->dbt2.data ? &req->dbt2 : 0, 0, req->uint1, 0);
796 root 1.51 break;
797     #endif
798    
799     case REQ_DB_SYNC:
800     req->result = req->db->sync (req->db, req->uint1);
801     break;
802    
803     case REQ_DB_UPGRADE:
804     req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
805     break;
806    
807     case REQ_DB_PUT:
808     req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
809     break;
810    
811     #if DB_VERSION_MINOR >= 6
812     case REQ_DB_EXISTS:
813     req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
814     break;
815     #endif
816     case REQ_DB_GET:
817     req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
818     break;
819    
820     case REQ_DB_PGET:
821     req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
822     break;
823    
824     case REQ_DB_DEL:
825     req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
826     break;
827    
828     case REQ_DB_KEY_RANGE:
829     req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
830     break;
831    
832     case REQ_TXN_COMMIT:
833     req->result = req->txn->commit (req->txn, req->uint1);
834     break;
835    
836     case REQ_TXN_ABORT:
837     req->result = req->txn->abort (req->txn);
838     break;
839    
840     case REQ_TXN_FINISH:
841     if (req->txn->flags & TXN_DEADLOCK)
842     {
843     req->result = req->txn->abort (req->txn);
844     if (!req->result)
845     req->result = DB_LOCK_DEADLOCK;
846     }
847     else
848     req->result = req->txn->commit (req->txn, req->uint1);
849     break;
850    
851     case REQ_C_CLOSE:
852     req->result = req->dbc->c_close (req->dbc);
853     break;
854    
855     case REQ_C_COUNT:
856     {
857     db_recno_t recno;
858     req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
859     req->uv1 = recno;
860     }
861     break;
862    
863     case REQ_C_PUT:
864     req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
865     break;
866    
867     case REQ_C_GET:
868     req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
869     break;
870    
871     case REQ_C_PGET:
872     req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
873     break;
874    
875     case REQ_C_DEL:
876     req->result = req->dbc->c_del (req->dbc, req->uint1);
877     break;
878    
879     #if DB_VERSION_MINOR >= 3
880     case REQ_SEQ_OPEN:
881     req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
882     break;
883    
884     case REQ_SEQ_CLOSE:
885     req->result = req->seq->close (req->seq, req->uint1);
886     break;
887    
888     case REQ_SEQ_GET:
889     req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
890     break;
891    
892     case REQ_SEQ_REMOVE:
893     req->result = req->seq->remove (req->seq, req->txn, req->uint1);
894     break;
895     #endif
896    
897 root 1.63 case REQ_ENV_LOG_ARCHIVE:
898     {
899     char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
900     req->result = req->env->log_archive (req->env, &listp, req->uint1);
901     req->buf1 = (char *)listp;
902     }
903     break;
904    
905 root 1.51 default:
906     req->result = ENOSYS;
907     break;
908     }
909    
910     if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
911     req->txn->flags |= TXN_DEADLOCK;
912     }
913    
914 root 1.13 X_THREAD_PROC (bdb_proc)
915 root 1.1 {
916 root 1.28 bdb_req req;
917 root 1.1 struct timespec ts;
918     worker *self = (worker *)thr_arg;
919    
920     /* try to distribute timeouts somewhat evenly */
921 root 1.13 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
922 root 1.1
923     for (;;)
924     {
925     ts.tv_sec = time (0) + IDLE_TIMEOUT;
926    
927 root 1.12 X_LOCK (reqlock);
928 root 1.1
929     for (;;)
930     {
931     self->req = req = reqq_shift (&req_queue);
932    
933     if (req)
934     break;
935    
936     ++idle;
937    
938 root 1.12 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
939 root 1.1 == ETIMEDOUT)
940     {
941     if (idle > max_idle)
942     {
943     --idle;
944 root 1.12 X_UNLOCK (reqlock);
945     X_LOCK (wrklock);
946 root 1.1 --started;
947 root 1.12 X_UNLOCK (wrklock);
948 root 1.1 goto quit;
949     }
950    
951     /* we are allowed to idle, so do so without any timeout */
952 root 1.12 X_COND_WAIT (reqwait, reqlock);
953 root 1.1 ts.tv_sec = time (0) + IDLE_TIMEOUT;
954     }
955    
956     --idle;
957     }
958    
959     --nready;
960    
961 root 1.12 X_UNLOCK (reqlock);
962 root 1.49
963 root 1.51 if (req->type == REQ_QUIT)
964 root 1.52 {
965     X_LOCK (reslock);
966     free (req);
967     self->req = 0;
968     X_UNLOCK (reslock);
969    
970     goto quit;
971     }
972 root 1.1
973 root 1.51 bdb_request (req);
974 root 1.17
975 root 1.12 X_LOCK (reslock);
976 root 1.1
977     ++npending;
978    
979     if (!reqq_push (&res_queue, req))
980     /* write a dummy byte to the pipe so fh becomes ready */
981 root 1.13 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
982 root 1.1
983     self->req = 0;
984     worker_clear (self);
985    
986 root 1.12 X_UNLOCK (reslock);
987 root 1.1 }
988    
989     quit:
990 root 1.12 X_LOCK (wrklock);
991 root 1.1 worker_free (self);
992 root 1.12 X_UNLOCK (wrklock);
993 root 1.1
994     return 0;
995     }
996    
997     /*****************************************************************************/
998    
999     static void atfork_prepare (void)
1000     {
1001 root 1.12 X_LOCK (wrklock);
1002     X_LOCK (reqlock);
1003     X_LOCK (reslock);
1004 root 1.1 }
1005    
1006     static void atfork_parent (void)
1007     {
1008 root 1.12 X_UNLOCK (reslock);
1009     X_UNLOCK (reqlock);
1010     X_UNLOCK (wrklock);
1011 root 1.1 }
1012    
1013     static void atfork_child (void)
1014     {
1015 root 1.28 bdb_req prv;
1016 root 1.1
1017     while (prv = reqq_shift (&req_queue))
1018     req_free (prv);
1019    
1020     while (prv = reqq_shift (&res_queue))
1021     req_free (prv);
1022    
1023     while (wrk_first.next != &wrk_first)
1024     {
1025     worker *wrk = wrk_first.next;
1026    
1027     if (wrk->req)
1028     req_free (wrk->req);
1029    
1030     worker_clear (wrk);
1031     worker_free (wrk);
1032     }
1033    
1034     started = 0;
1035     idle = 0;
1036     nreqs = 0;
1037     nready = 0;
1038     npending = 0;
1039    
1040 root 1.19 create_respipe ();
1041 root 1.1
1042     atfork_parent ();
1043     }
1044    
1045 root 1.50 #define dREQ(reqtype,rsvcnt) \
1046 root 1.28 bdb_req req; \
1047 root 1.1 int req_pri = next_pri; \
1048     next_pri = DEFAULT_PRI + PRI_BIAS; \
1049     \
1050 root 1.41 if (callback && SvOK (callback)) \
1051     croak ("callback has illegal type or extra arguments"); \
1052 root 1.1 \
1053 root 1.28 Newz (0, req, 1, bdb_cb); \
1054 root 1.1 if (!req) \
1055 root 1.28 croak ("out of memory during bdb_req allocation"); \
1056 root 1.1 \
1057 root 1.50 req->callback = SvREFCNT_inc (cb); \
1058 root 1.2 req->type = (reqtype); \
1059 root 1.50 req->pri = req_pri; \
1060     if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
1061     if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
1062     (void)0;
1063 root 1.1
1064     #define REQ_SEND \
1065 root 1.2 req_send (req)
1066    
1067 root 1.30 #define SvPTR(var, arg, type, class, nullok) \
1068 root 1.5 if (!SvOK (arg)) \
1069     { \
1070 root 1.30 if (nullok != 1) \
1071 root 1.7 croak (# var " must be a " # class " object, not undef"); \
1072 root 1.5 \
1073     (var) = 0; \
1074     } \
1075     else if (sv_derived_from ((arg), # class)) \
1076     { \
1077     IV tmp = SvIV ((SV*) SvRV (arg)); \
1078     (var) = INT2PTR (type, tmp); \
1079 root 1.54 if (!var && nullok != 2) \
1080 root 1.7 croak (# var " is not a valid " # class " object anymore"); \
1081 root 1.5 } \
1082     else \
1083 root 1.42 croak (# var " is not of type " # class);
1084 root 1.3
1085 root 1.54 #define ARG_MUTABLE(name) \
1086     if (SvREADONLY (name)) \
1087     croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
1088    
1089 root 1.5 static void
1090     ptr_nuke (SV *sv)
1091 root 1.3 {
1092 root 1.5 assert (SvROK (sv));
1093     sv_setiv (SvRV (sv), 0);
1094     }
1095 root 1.3
1096 root 1.31 static int
1097     errno_get (pTHX_ SV *sv, MAGIC *mg)
1098     {
1099     if (*mg->mg_ptr == '!') // should always be the case
1100     if (-30999 <= errno && errno <= -30800)
1101     {
1102 root 1.32 sv_setnv (sv, (NV)errno);
1103 root 1.31 sv_setpv (sv, db_strerror (errno));
1104 root 1.32 SvNOK_on (sv); /* what a wonderful hack! */
1105     // ^^^ copied from perl sources
1106 root 1.31 return 0;
1107     }
1108    
1109     return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1110     }
1111    
1112     static MGVTBL vtbl_errno;
1113    
1114     // this wonderful hack :( patches perl's $! variable to support our errno values
1115     static void
1116     patch_errno (void)
1117     {
1118     SV *sv;
1119     MAGIC *mg;
1120    
1121     if (!(sv = get_sv ("!", 1)))
1122     return;
1123    
1124     if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1125     return;
1126    
1127     if (mg->mg_virtual != &PL_vtbl_sv)
1128     return;
1129    
1130     vtbl_errno = PL_vtbl_sv;
1131     vtbl_errno.svt_get = errno_get;
1132     mg->mg_virtual = &vtbl_errno;
1133     }
1134    
1135 root 1.42 #if __GNUC__ >= 4
1136     # define noinline __attribute__ ((noinline))
1137     #else
1138     # define noinline
1139     #endif
1140    
1141     static noinline SV *
1142 root 1.41 pop_callback (I32 *ritems, SV *sv)
1143     {
1144     if (SvROK (sv))
1145     {
1146     HV *st;
1147     GV *gvp;
1148 root 1.42 CV *cv;
1149     const char *name;
1150    
1151     /* forgive me */
1152     if (SvTYPE (SvRV (sv)) == SVt_PVMG
1153     && (st = SvSTASH (SvRV (sv)))
1154     && (name = HvNAME_get (st))
1155     && (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
1156     return 0;
1157 root 1.41
1158 root 1.42 if ((cv = sv_2cv (sv, &st, &gvp, 0)))
1159 root 1.41 {
1160     --*ritems;
1161     return (SV *)cv;
1162     }
1163     }
1164    
1165     return 0;
1166     }
1167    
1168 root 1.58 /* stupid windows defines CALLBACK as well */
1169 root 1.47 #undef CALLBACK
1170 root 1.41 #define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
1171    
1172 root 1.2 MODULE = BDB PACKAGE = BDB
1173 root 1.1
1174     PROTOTYPES: ENABLE
1175    
1176     BOOT:
1177     {
1178 root 1.2 HV *stash = gv_stashpv ("BDB", 1);
1179    
1180     static const struct {
1181     const char *name;
1182     IV iv;
1183     } *civ, const_iv[] = {
1184     #define const_iv(name) { # name, (IV)DB_ ## name },
1185     const_iv (RPCCLIENT)
1186     const_iv (INIT_CDB)
1187     const_iv (INIT_LOCK)
1188     const_iv (INIT_LOG)
1189     const_iv (INIT_MPOOL)
1190     const_iv (INIT_REP)
1191     const_iv (INIT_TXN)
1192     const_iv (RECOVER)
1193     const_iv (INIT_TXN)
1194     const_iv (RECOVER_FATAL)
1195     const_iv (CREATE)
1196 root 1.20 const_iv (RDONLY)
1197 root 1.2 const_iv (USE_ENVIRON)
1198     const_iv (USE_ENVIRON_ROOT)
1199     const_iv (LOCKDOWN)
1200     const_iv (PRIVATE)
1201     const_iv (SYSTEM_MEM)
1202     const_iv (AUTO_COMMIT)
1203     const_iv (CDB_ALLDB)
1204     const_iv (DIRECT_DB)
1205     const_iv (NOLOCKING)
1206     const_iv (NOMMAP)
1207     const_iv (NOPANIC)
1208     const_iv (OVERWRITE)
1209     const_iv (PANIC_ENVIRONMENT)
1210     const_iv (REGION_INIT)
1211     const_iv (TIME_NOTGRANTED)
1212     const_iv (TXN_NOSYNC)
1213 root 1.20 const_iv (TXN_NOT_DURABLE)
1214 root 1.2 const_iv (TXN_WRITE_NOSYNC)
1215 root 1.5 const_iv (WRITECURSOR)
1216 root 1.2 const_iv (YIELDCPU)
1217     const_iv (ENCRYPT_AES)
1218     const_iv (XA_CREATE)
1219     const_iv (BTREE)
1220     const_iv (HASH)
1221     const_iv (QUEUE)
1222     const_iv (RECNO)
1223     const_iv (UNKNOWN)
1224     const_iv (EXCL)
1225     const_iv (TRUNCATE)
1226     const_iv (NOSYNC)
1227     const_iv (CHKSUM)
1228     const_iv (ENCRYPT)
1229     const_iv (DUP)
1230     const_iv (DUPSORT)
1231 root 1.61 //const_iv (RECNUM)
1232 root 1.2 const_iv (RENUMBER)
1233     const_iv (REVSPLITOFF)
1234     const_iv (CONSUME)
1235     const_iv (CONSUME_WAIT)
1236 root 1.5 const_iv (GET_BOTH)
1237 root 1.6 const_iv (GET_BOTH_RANGE)
1238 root 1.5 //const_iv (SET_RECNO)
1239     //const_iv (MULTIPLE)
1240 root 1.2 const_iv (SNAPSHOT)
1241     const_iv (JOIN_ITEM)
1242 root 1.27 const_iv (JOIN_NOSORT)
1243 root 1.2 const_iv (RMW)
1244    
1245     const_iv (NOTFOUND)
1246     const_iv (KEYEMPTY)
1247     const_iv (LOCK_DEADLOCK)
1248     const_iv (LOCK_NOTGRANTED)
1249     const_iv (RUNRECOVERY)
1250 root 1.3 const_iv (OLD_VERSION)
1251     const_iv (REP_HANDLE_DEAD)
1252 root 1.6 const_iv (SECONDARY_BAD)
1253 root 1.3
1254     const_iv (APPEND)
1255     const_iv (NODUPDATA)
1256     const_iv (NOOVERWRITE)
1257    
1258 root 1.4 const_iv (TXN_NOWAIT)
1259     const_iv (TXN_SYNC)
1260    
1261 root 1.3 const_iv (SET_LOCK_TIMEOUT)
1262     const_iv (SET_TXN_TIMEOUT)
1263 root 1.6
1264     const_iv (FIRST)
1265     const_iv (NEXT)
1266     const_iv (NEXT_DUP)
1267     const_iv (NEXT_NODUP)
1268     const_iv (PREV)
1269     const_iv (PREV_NODUP)
1270     const_iv (SET)
1271     const_iv (SET_RANGE)
1272     const_iv (LAST)
1273     const_iv (BEFORE)
1274     const_iv (AFTER)
1275     const_iv (CURRENT)
1276     const_iv (KEYFIRST)
1277     const_iv (KEYLAST)
1278     const_iv (NODUPDATA)
1279 root 1.8
1280     const_iv (FORCE)
1281    
1282     const_iv (LOCK_DEFAULT)
1283     const_iv (LOCK_EXPIRE)
1284     const_iv (LOCK_MAXLOCKS)
1285     const_iv (LOCK_MINLOCKS)
1286     const_iv (LOCK_MINWRITE)
1287     const_iv (LOCK_OLDEST)
1288     const_iv (LOCK_RANDOM)
1289     const_iv (LOCK_YOUNGEST)
1290    
1291 root 1.14 const_iv (DONOTINDEX)
1292     const_iv (KEYEMPTY )
1293     const_iv (KEYEXIST )
1294     const_iv (LOCK_DEADLOCK)
1295     const_iv (LOCK_NOTGRANTED)
1296     const_iv (NOSERVER)
1297     const_iv (NOSERVER_HOME)
1298     const_iv (NOSERVER_ID)
1299     const_iv (NOTFOUND)
1300     const_iv (PAGE_NOTFOUND)
1301     const_iv (REP_DUPMASTER)
1302     const_iv (REP_HANDLE_DEAD)
1303     const_iv (REP_HOLDELECTION)
1304     const_iv (REP_ISPERM)
1305     const_iv (REP_NEWMASTER)
1306     const_iv (REP_NEWSITE)
1307     const_iv (REP_NOTPERM)
1308     const_iv (REP_UNAVAIL)
1309     const_iv (RUNRECOVERY)
1310     const_iv (SECONDARY_BAD)
1311     const_iv (VERIFY_BAD)
1312    
1313 root 1.63 const_iv (ARCH_ABS)
1314     const_iv (ARCH_DATA)
1315     const_iv (ARCH_LOG)
1316     const_iv (ARCH_REMOVE)
1317    
1318 root 1.14 const_iv (VERB_DEADLOCK)
1319     const_iv (VERB_RECOVERY)
1320     const_iv (VERB_REPLICATION)
1321     const_iv (VERB_WAITSFOR)
1322    
1323     const_iv (VERSION_MAJOR)
1324     const_iv (VERSION_MINOR)
1325     const_iv (VERSION_PATCH)
1326 root 1.47 #if DB_VERSION_MINOR >= 3
1327     const_iv (INORDER)
1328     const_iv (LOCK_MAXWRITE)
1329     const_iv (SEQ_DEC)
1330     const_iv (SEQ_INC)
1331     const_iv (SEQ_WRAP)
1332     const_iv (BUFFER_SMALL)
1333     const_iv (LOG_BUFFER_FULL)
1334     const_iv (VERSION_MISMATCH)
1335     #endif
1336     #if DB_VERSION_MINOR >= 4
1337     const_iv (REGISTER)
1338     const_iv (DSYNC_DB)
1339     const_iv (READ_COMMITTED)
1340     const_iv (READ_UNCOMMITTED)
1341     const_iv (REP_IGNORE)
1342     const_iv (REP_LOCKOUT)
1343     const_iv (REP_JOIN_FAILURE)
1344     const_iv (FREE_SPACE)
1345     const_iv (FREELIST_ONLY)
1346     const_iv (VERB_REGISTER)
1347     #endif
1348 root 1.13 #if DB_VERSION_MINOR >= 5
1349     const_iv (MULTIVERSION)
1350     const_iv (TXN_SNAPSHOT)
1351     #endif
1352 root 1.15 #if DB_VERSION_MINOR >= 6
1353 root 1.16 const_iv (PREV_DUP)
1354     const_iv (PRIORITY_UNCHANGED)
1355     const_iv (PRIORITY_VERY_LOW)
1356     const_iv (PRIORITY_LOW)
1357     const_iv (PRIORITY_DEFAULT)
1358     const_iv (PRIORITY_HIGH)
1359     const_iv (PRIORITY_VERY_HIGH)
1360 root 1.63 const_iv (IGNORE_LEASE)
1361 root 1.15 #endif
1362 root 1.39 #if DB_VERSION_MINOR >= 7
1363 root 1.61 //const_iv (MULTIPLE_KEY)
1364 root 1.39 const_iv (LOG_DIRECT)
1365     const_iv (LOG_DSYNC)
1366     const_iv (LOG_AUTO_REMOVE)
1367     const_iv (LOG_IN_MEMORY)
1368     const_iv (LOG_ZERO)
1369     #else
1370     const_iv (DIRECT_LOG)
1371 root 1.47 const_iv (LOG_AUTOREMOVE)
1372     # if DB_VERSION_MINOR >= 3
1373 root 1.39 const_iv (DSYNC_LOG)
1374     const_iv (LOG_INMEMORY)
1375 root 1.47 # endif
1376 root 1.39 #endif
1377 root 1.2 };
1378    
1379     for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1380     newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1381 root 1.1
1382 root 1.53 prepare_cb = &PL_sv_undef;
1383    
1384 root 1.40 {
1385     /* we currently only allow version, minor-version and patchlevel to go up to 255 */
1386     char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
1387    
1388     newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
1389     }
1390    
1391 root 1.24 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1392 root 1.14
1393 root 1.19 create_respipe ();
1394 root 1.12
1395     X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1396 root 1.31 patch_errno ();
1397 root 1.1 }
1398    
1399     void
1400     max_poll_reqs (int nreqs)
1401     PROTOTYPE: $
1402     CODE:
1403     max_poll_reqs = nreqs;
1404    
1405     void
1406     max_poll_time (double nseconds)
1407     PROTOTYPE: $
1408     CODE:
1409     max_poll_time = nseconds * AIO_TICKS;
1410    
1411     void
1412     min_parallel (int nthreads)
1413     PROTOTYPE: $
1414    
1415     void
1416     max_parallel (int nthreads)
1417     PROTOTYPE: $
1418    
1419     void
1420     max_idle (int nthreads)
1421     PROTOTYPE: $
1422     CODE:
1423     set_max_idle (nthreads);
1424    
1425     int
1426     max_outstanding (int maxreqs)
1427     PROTOTYPE: $
1428     CODE:
1429     RETVAL = max_outstanding;
1430     max_outstanding = maxreqs;
1431     OUTPUT:
1432     RETVAL
1433    
1434     int
1435 root 1.3 dbreq_pri (int pri = 0)
1436 root 1.1 PROTOTYPE: ;$
1437     CODE:
1438     RETVAL = next_pri - PRI_BIAS;
1439     if (items > 0)
1440     {
1441     if (pri < PRI_MIN) pri = PRI_MIN;
1442     if (pri > PRI_MAX) pri = PRI_MAX;
1443     next_pri = pri + PRI_BIAS;
1444     }
1445     OUTPUT:
1446     RETVAL
1447    
1448     void
1449 root 1.3 dbreq_nice (int nice = 0)
1450 root 1.1 CODE:
1451     nice = next_pri - nice;
1452     if (nice < PRI_MIN) nice = PRI_MIN;
1453     if (nice > PRI_MAX) nice = PRI_MAX;
1454     next_pri = nice + PRI_BIAS;
1455    
1456     void
1457     flush ()
1458     PROTOTYPE:
1459     CODE:
1460     while (nreqs)
1461     {
1462     poll_wait ();
1463     poll_cb ();
1464     }
1465    
1466     int
1467 root 1.3 poll ()
1468 root 1.1 PROTOTYPE:
1469     CODE:
1470     poll_wait ();
1471     RETVAL = poll_cb ();
1472     OUTPUT:
1473     RETVAL
1474    
1475     int
1476 root 1.3 poll_fileno ()
1477 root 1.1 PROTOTYPE:
1478     CODE:
1479     RETVAL = respipe [0];
1480     OUTPUT:
1481     RETVAL
1482    
1483     int
1484 root 1.3 poll_cb (...)
1485 root 1.1 PROTOTYPE:
1486     CODE:
1487     RETVAL = poll_cb ();
1488     OUTPUT:
1489     RETVAL
1490    
1491     void
1492 root 1.3 poll_wait ()
1493 root 1.1 PROTOTYPE:
1494     CODE:
1495     poll_wait ();
1496    
1497     int
1498 root 1.3 nreqs ()
1499 root 1.1 PROTOTYPE:
1500     CODE:
1501     RETVAL = nreqs;
1502     OUTPUT:
1503     RETVAL
1504    
1505     int
1506 root 1.3 nready ()
1507 root 1.1 PROTOTYPE:
1508     CODE:
1509     RETVAL = get_nready ();
1510     OUTPUT:
1511     RETVAL
1512    
1513     int
1514 root 1.3 npending ()
1515 root 1.1 PROTOTYPE:
1516     CODE:
1517     RETVAL = get_npending ();
1518     OUTPUT:
1519     RETVAL
1520    
1521     int
1522 root 1.3 nthreads ()
1523 root 1.1 PROTOTYPE:
1524     CODE:
1525 root 1.12 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1526 root 1.1 RETVAL = started;
1527 root 1.12 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1528 root 1.1 OUTPUT:
1529     RETVAL
1530    
1531 root 1.53 SV *
1532 root 1.3 set_sync_prepare (SV *cb)
1533     PROTOTYPE: &
1534     CODE:
1535 root 1.53 RETVAL = prepare_cb;
1536 root 1.3 prepare_cb = newSVsv (cb);
1537 root 1.53 OUTPUT:
1538     RETVAL
1539 root 1.3
1540 root 1.14 char *
1541     strerror (int errorno = errno)
1542     PROTOTYPE: ;$
1543     CODE:
1544     RETVAL = db_strerror (errorno);
1545     OUTPUT:
1546     RETVAL
1547 root 1.8
1548 root 1.37 void _on_next_submit (SV *cb)
1549     CODE:
1550     SvREFCNT_dec (on_next_submit);
1551     on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1552    
1553 root 1.2 DB_ENV *
1554 root 1.3 db_env_create (U32 env_flags = 0)
1555 root 1.2 CODE:
1556     {
1557 root 1.3 errno = db_env_create (&RETVAL, env_flags);
1558     if (errno)
1559     croak ("db_env_create: %s", db_strerror (errno));
1560 root 1.14
1561     if (0)
1562     {
1563     RETVAL->set_errcall (RETVAL, debug_errcall);
1564     RETVAL->set_msgcall (RETVAL, debug_msgcall);
1565     }
1566 root 1.2 }
1567 root 1.3 OUTPUT:
1568     RETVAL
1569 root 1.2
1570     void
1571 root 1.41 db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
1572     PREINIT:
1573     CALLBACK
1574 root 1.2 CODE:
1575     {
1576 root 1.50 dREQ (REQ_ENV_OPEN, 1);
1577 root 1.2 req->env = env;
1578 root 1.3 req->uint1 = open_flags | DB_THREAD;
1579 root 1.2 req->int1 = mode;
1580 root 1.3 req->buf1 = strdup_ornull (db_home);
1581 root 1.2 REQ_SEND;
1582     }
1583    
1584     void
1585 root 1.41 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
1586     PREINIT:
1587     CALLBACK
1588 root 1.2 CODE:
1589     {
1590 root 1.56 dREQ (REQ_ENV_CLOSE, 0);
1591 root 1.54 ptr_nuke (ST (0));
1592 root 1.2 req->env = env;
1593     req->uint1 = flags;
1594     REQ_SEND;
1595     }
1596    
1597 root 1.8 void
1598 root 1.41 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
1599     PREINIT:
1600     CALLBACK
1601 root 1.8 CODE:
1602     {
1603 root 1.50 dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
1604 root 1.8 req->env = env;
1605     req->uint1 = kbyte;
1606     req->int1 = min;
1607     req->uint2 = flags;
1608     REQ_SEND;
1609     }
1610    
1611     void
1612 root 1.41 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
1613     PREINIT:
1614     CALLBACK
1615 root 1.8 CODE:
1616     {
1617 root 1.50 dREQ (REQ_ENV_LOCK_DETECT, 1);
1618 root 1.8 req->env = env;
1619     req->uint1 = flags;
1620     req->uint2 = atype;
1621 root 1.41 /* req->int2 = 0; dummy */
1622 root 1.8 REQ_SEND;
1623     }
1624    
1625     void
1626 root 1.41 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
1627     PREINIT:
1628     CALLBACK
1629 root 1.8 CODE:
1630     {
1631 root 1.50 dREQ (REQ_ENV_MEMP_SYNC, 1);
1632 root 1.8 req->env = env;
1633     REQ_SEND;
1634     }
1635    
1636     void
1637 root 1.41 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
1638     PREINIT:
1639     CALLBACK
1640 root 1.8 CODE:
1641     {
1642 root 1.50 dREQ (REQ_ENV_MEMP_TRICKLE, 1);
1643 root 1.8 req->env = env;
1644     req->int1 = percent;
1645     REQ_SEND;
1646     }
1647    
1648 root 1.39 void
1649 root 1.41 db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
1650     PREINIT:
1651     CALLBACK
1652 root 1.39 CODE:
1653     {
1654 root 1.50 dREQ (REQ_ENV_DBREMOVE, 2);
1655 root 1.39 req->env = env;
1656     req->buf1 = strdup_ornull (file);
1657     req->buf2 = strdup_ornull (database);
1658     req->uint1 = flags;
1659     REQ_SEND;
1660     }
1661    
1662     void
1663 root 1.41 db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
1664     PREINIT:
1665     CALLBACK
1666 root 1.39 CODE:
1667     {
1668 root 1.50 dREQ (REQ_ENV_DBRENAME, 2);
1669 root 1.39 req->env = env;
1670     req->buf1 = strdup_ornull (file);
1671     req->buf2 = strdup_ornull (database);
1672     req->buf3 = strdup_ornull (newname);
1673     req->uint1 = flags;
1674     REQ_SEND;
1675     }
1676 root 1.8
1677 root 1.63 void
1678     db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
1679     PREINIT:
1680     CALLBACK
1681     CODE:
1682     {
1683     dREQ (REQ_ENV_LOG_ARCHIVE, 1);
1684     req->sv1 = SvREFCNT_inc (listp);
1685     req->env = env;
1686     req->uint1 = flags;
1687     REQ_SEND;
1688     }
1689    
1690 root 1.2 DB *
1691 root 1.3 db_create (DB_ENV *env = 0, U32 flags = 0)
1692 root 1.2 CODE:
1693     {
1694 root 1.3 errno = db_create (&RETVAL, env, flags);
1695     if (errno)
1696 root 1.6 croak ("db_create: %s", db_strerror (errno));
1697 root 1.5
1698     if (RETVAL)
1699     RETVAL->app_private = (void *)newSVsv (ST (0));
1700 root 1.2 }
1701 root 1.3 OUTPUT:
1702     RETVAL
1703 root 1.2
1704     void
1705 root 1.41 db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
1706     PREINIT:
1707     CALLBACK
1708 root 1.2 CODE:
1709     {
1710 root 1.50 dREQ (REQ_DB_OPEN, 2);
1711 root 1.2 req->db = db;
1712     req->txn = txnid;
1713 root 1.3 req->buf1 = strdup_ornull (file);
1714     req->buf2 = strdup_ornull (database);
1715 root 1.2 req->int1 = type;
1716 root 1.3 req->uint1 = flags | DB_THREAD;
1717 root 1.2 req->int2 = mode;
1718     REQ_SEND;
1719     }
1720    
1721     void
1722 root 1.41 db_close (DB *db, U32 flags = 0, SV *callback = 0)
1723     PREINIT:
1724     CALLBACK
1725 root 1.2 CODE:
1726     {
1727 root 1.56 dREQ (REQ_DB_CLOSE, 0);
1728 root 1.54 ptr_nuke (ST (0));
1729 root 1.2 req->db = db;
1730     req->uint1 = flags;
1731 root 1.5 req->sv1 = (SV *)db->app_private;
1732 root 1.2 REQ_SEND;
1733     }
1734    
1735 root 1.47 #if DB_VERSION_MINOR >= 4
1736    
1737 root 1.3 void
1738 root 1.41 db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = 0)
1739     PREINIT:
1740     CALLBACK
1741 root 1.3 CODE:
1742     {
1743 root 1.50 dREQ (REQ_DB_COMPACT, 2);
1744 root 1.3 req->db = db;
1745     req->txn = txn;
1746 root 1.62 if (start) sv_to_dbt (&req->dbt1, start);
1747     if (stop ) sv_to_dbt (&req->dbt2, stop );
1748 root 1.3 req->uint1 = flags;
1749     REQ_SEND;
1750     }
1751    
1752 root 1.47 #endif
1753    
1754 root 1.3 void
1755 root 1.41 db_sync (DB *db, U32 flags = 0, SV *callback = 0)
1756     PREINIT:
1757     CALLBACK
1758 root 1.3 CODE:
1759     {
1760 root 1.50 dREQ (REQ_DB_SYNC, 1);
1761 root 1.3 req->db = db;
1762     req->uint1 = flags;
1763     REQ_SEND;
1764     }
1765    
1766     void
1767 root 1.41 db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
1768     PREINIT:
1769     CALLBACK
1770 root 1.26 CODE:
1771     {
1772 root 1.50 dREQ (REQ_DB_SYNC, 1);
1773 root 1.26 req->db = db;
1774     req->buf1 = strdup (file);
1775     req->uint1 = flags;
1776     REQ_SEND;
1777     }
1778    
1779     void
1780 root 1.54 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
1781 root 1.41 PREINIT:
1782     CALLBACK
1783 root 1.8 CODE:
1784     {
1785 root 1.50 dREQ (REQ_DB_KEY_RANGE, 2);
1786 root 1.8 req->db = db;
1787     req->txn = txn;
1788     sv_to_dbt (&req->dbt1, key);
1789     req->uint1 = flags;
1790     req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
1791     REQ_SEND;
1792     }
1793    
1794     void
1795 root 1.41 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1796     PREINIT:
1797     CALLBACK
1798 root 1.3 CODE:
1799     {
1800 root 1.50 dREQ (REQ_DB_PUT, 2);
1801 root 1.3 req->db = db;
1802 root 1.5 req->txn = txn;
1803     sv_to_dbt (&req->dbt1, key);
1804     sv_to_dbt (&req->dbt2, data);
1805 root 1.3 req->uint1 = flags;
1806     REQ_SEND;
1807     }
1808    
1809 root 1.46 #if DB_VERSION_MINOR >= 6
1810    
1811 root 1.5 void
1812 root 1.45 db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1813     PREINIT:
1814     CALLBACK
1815     CODE:
1816     {
1817 root 1.50 dREQ (REQ_DB_EXISTS, 2);
1818 root 1.45 req->db = db;
1819     req->txn = txn;
1820     req->uint1 = flags;
1821     sv_to_dbt (&req->dbt1, key);
1822     REQ_SEND;
1823     }
1824    
1825 root 1.46 #endif
1826    
1827 root 1.45 void
1828 root 1.54 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1829 root 1.41 PREINIT:
1830     CALLBACK
1831 root 1.5 CODE:
1832 root 1.28 {
1833 root 1.54 //TODO: key is somtimesmutable
1834 root 1.50 dREQ (REQ_DB_GET, 2);
1835 root 1.5 req->db = db;
1836     req->txn = txn;
1837 root 1.6 req->uint1 = flags;
1838 root 1.5 sv_to_dbt (&req->dbt1, key);
1839     req->dbt3.flags = DB_DBT_MALLOC;
1840 root 1.6 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1841 root 1.5 REQ_SEND;
1842     }
1843    
1844     void
1845 root 1.54 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1846 root 1.41 PREINIT:
1847     CALLBACK
1848 root 1.5 CODE:
1849 root 1.28 {
1850 root 1.54 //TODO: key is somtimesmutable
1851 root 1.50 dREQ (REQ_DB_PGET, 2);
1852 root 1.5 req->db = db;
1853     req->txn = txn;
1854 root 1.6 req->uint1 = flags;
1855 root 1.54
1856 root 1.5 sv_to_dbt (&req->dbt1, key);
1857 root 1.54
1858     req->dbt2.flags = DB_DBT_MALLOC;
1859     req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
1860    
1861 root 1.5 req->dbt3.flags = DB_DBT_MALLOC;
1862 root 1.6 req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1863     REQ_SEND;
1864     }
1865    
1866     void
1867 root 1.41 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
1868     PREINIT:
1869     CALLBACK
1870 root 1.6 CODE:
1871     {
1872 root 1.50 dREQ (REQ_DB_DEL, 2);
1873 root 1.6 req->db = db;
1874     req->txn = txn;
1875 root 1.5 req->uint1 = flags;
1876 root 1.6 sv_to_dbt (&req->dbt1, key);
1877 root 1.5 REQ_SEND;
1878     }
1879    
1880     void
1881 root 1.41 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1882     PREINIT:
1883     CALLBACK
1884 root 1.5 CODE:
1885     {
1886 root 1.56 dREQ (REQ_TXN_COMMIT, 0);
1887 root 1.54 ptr_nuke (ST (0));
1888 root 1.5 req->txn = txn;
1889     req->uint1 = flags;
1890     REQ_SEND;
1891     }
1892    
1893     void
1894 root 1.41 db_txn_abort (DB_TXN *txn, SV *callback = 0)
1895     PREINIT:
1896     CALLBACK
1897 root 1.5 CODE:
1898     {
1899 root 1.56 dREQ (REQ_TXN_ABORT, 0);
1900 root 1.54 ptr_nuke (ST (0));
1901 root 1.5 req->txn = txn;
1902     REQ_SEND;
1903     }
1904    
1905 root 1.6 void
1906 root 1.41 db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
1907     PREINIT:
1908     CALLBACK
1909 root 1.17 CODE:
1910     {
1911 root 1.56 dREQ (REQ_TXN_FINISH, 0);
1912 root 1.54 ptr_nuke (ST (0));
1913 root 1.17 req->txn = txn;
1914     req->uint1 = flags;
1915     REQ_SEND;
1916     }
1917    
1918     void
1919 root 1.41 db_c_close (DBC *dbc, SV *callback = 0)
1920     PREINIT:
1921     CALLBACK
1922 root 1.6 CODE:
1923     {
1924 root 1.56 dREQ (REQ_C_CLOSE, 0);
1925 root 1.54 ptr_nuke (ST (0));
1926 root 1.6 req->dbc = dbc;
1927     REQ_SEND;
1928     }
1929    
1930     void
1931 root 1.41 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
1932     PREINIT:
1933     CALLBACK
1934 root 1.6 CODE:
1935     {
1936 root 1.50 dREQ (REQ_C_COUNT, 1);
1937 root 1.6 req->dbc = dbc;
1938     req->sv1 = SvREFCNT_inc (count);
1939     REQ_SEND;
1940     }
1941    
1942     void
1943 root 1.41 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
1944     PREINIT:
1945     CALLBACK
1946 root 1.6 CODE:
1947     {
1948 root 1.50 dREQ (REQ_C_PUT, 1);
1949 root 1.6 req->dbc = dbc;
1950     sv_to_dbt (&req->dbt1, key);
1951     sv_to_dbt (&req->dbt2, data);
1952     req->uint1 = flags;
1953     REQ_SEND;
1954     }
1955    
1956     void
1957 root 1.54 db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1958 root 1.41 PREINIT:
1959     CALLBACK
1960 root 1.6 CODE:
1961     {
1962 root 1.61 if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
1963 root 1.54 croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
1964 root 1.59 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
1965     croak ("argument \"%s\" must be byte/octet-encoded in %s",
1966     "key",
1967     "BDB::db_c_get");
1968 root 1.54
1969 root 1.57 {
1970     dREQ (REQ_C_GET, 1);
1971     req->dbc = dbc;
1972     req->uint1 = flags;
1973 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_SET)
1974 root 1.57 sv_to_dbt (&req->dbt1, key);
1975     else
1976     {
1977 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
1978 root 1.57 sv_to_dbt (&req->dbt1, key);
1979     else
1980     req->dbt1.flags = DB_DBT_MALLOC;
1981    
1982     req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
1983     }
1984    
1985 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
1986     || (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
1987 root 1.57 sv_to_dbt (&req->dbt3, data);
1988     else
1989     req->dbt3.flags = DB_DBT_MALLOC;
1990    
1991     req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1992     REQ_SEND;
1993     }
1994 root 1.6 }
1995    
1996     void
1997 root 1.54 db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
1998 root 1.41 PREINIT:
1999     CALLBACK
2000 root 1.6 CODE:
2001     {
2002 root 1.61 if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
2003 root 1.54 croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
2004 root 1.59 if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
2005     croak ("argument \"%s\" must be byte/octet-encoded in %s",
2006     "key",
2007     "BDB::db_c_pget");
2008 root 1.54
2009 root 1.57 {
2010     dREQ (REQ_C_PGET, 1);
2011     req->dbc = dbc;
2012     req->uint1 = flags;
2013 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_SET)
2014 root 1.57 sv_to_dbt (&req->dbt1, key);
2015     else
2016     {
2017 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
2018 root 1.57 sv_to_dbt (&req->dbt1, key);
2019     else
2020     req->dbt1.flags = DB_DBT_MALLOC;
2021    
2022     req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
2023     }
2024    
2025     req->dbt2.flags = DB_DBT_MALLOC;
2026     req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
2027    
2028 root 1.61 if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
2029     || (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
2030 root 1.57 sv_to_dbt (&req->dbt3, data);
2031     else
2032     req->dbt3.flags = DB_DBT_MALLOC;
2033    
2034     req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
2035     REQ_SEND;
2036     }
2037 root 1.6 }
2038    
2039     void
2040 root 1.41 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
2041     PREINIT:
2042     CALLBACK
2043 root 1.6 CODE:
2044     {
2045 root 1.50 dREQ (REQ_C_DEL, 1);
2046 root 1.6 req->dbc = dbc;
2047     req->uint1 = flags;
2048     REQ_SEND;
2049     }
2050    
2051 root 1.2
2052 root 1.47 #if DB_VERSION_MINOR >= 3
2053    
2054 root 1.8 void
2055 root 1.41 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
2056     PREINIT:
2057     CALLBACK
2058 root 1.8 CODE:
2059     {
2060 root 1.50 dREQ (REQ_SEQ_OPEN, 2);
2061 root 1.8 req->seq = seq;
2062     req->txn = txnid;
2063     req->uint1 = flags | DB_THREAD;
2064     sv_to_dbt (&req->dbt1, key);
2065     REQ_SEND;
2066     }
2067    
2068     void
2069 root 1.41 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
2070     PREINIT:
2071     CALLBACK
2072 root 1.8 CODE:
2073     {
2074 root 1.56 dREQ (REQ_SEQ_CLOSE, 0);
2075 root 1.54 ptr_nuke (ST (0));
2076 root 1.8 req->seq = seq;
2077     req->uint1 = flags;
2078     REQ_SEND;
2079     }
2080    
2081     void
2082 root 1.54 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
2083 root 1.41 PREINIT:
2084     CALLBACK
2085 root 1.8 CODE:
2086     {
2087 root 1.50 dREQ (REQ_SEQ_GET, 2);
2088 root 1.8 req->seq = seq;
2089     req->txn = txnid;
2090     req->int1 = delta;
2091     req->uint1 = flags;
2092     req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
2093     REQ_SEND;
2094     }
2095    
2096     void
2097 root 1.41 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
2098     PREINIT:
2099     CALLBACK
2100 root 1.8 CODE:
2101     {
2102 root 1.50 dREQ (REQ_SEQ_REMOVE, 2);
2103 root 1.8 req->seq = seq;
2104     req->txn = txnid;
2105     req->uint1 = flags;
2106     REQ_SEND;
2107     }
2108    
2109 root 1.47 #endif
2110    
2111 root 1.8
2112 root 1.2 MODULE = BDB PACKAGE = BDB::Env
2113    
2114 root 1.5 void
2115 root 1.30 DESTROY (DB_ENV_ornuked *env)
2116 root 1.5 CODE:
2117     if (env)
2118     env->close (env, 0);
2119    
2120 root 1.8 int set_data_dir (DB_ENV *env, const char *dir)
2121     CODE:
2122     RETVAL = env->set_data_dir (env, dir);
2123     OUTPUT:
2124     RETVAL
2125    
2126     int set_tmp_dir (DB_ENV *env, const char *dir)
2127     CODE:
2128     RETVAL = env->set_tmp_dir (env, dir);
2129     OUTPUT:
2130     RETVAL
2131    
2132     int set_lg_dir (DB_ENV *env, const char *dir)
2133     CODE:
2134     RETVAL = env->set_lg_dir (env, dir);
2135     OUTPUT:
2136     RETVAL
2137    
2138     int set_shm_key (DB_ENV *env, long shm_key)
2139     CODE:
2140     RETVAL = env->set_shm_key (env, shm_key);
2141     OUTPUT:
2142     RETVAL
2143    
2144 root 1.2 int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
2145 root 1.3 CODE:
2146     RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
2147     OUTPUT:
2148     RETVAL
2149 root 1.2
2150 root 1.25 int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
2151 root 1.3 CODE:
2152     RETVAL = env->set_flags (env, flags, onoff);
2153     OUTPUT:
2154     RETVAL
2155    
2156 root 1.39 #if DB_VERSION_MINOR >= 7
2157    
2158     int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
2159     CODE:
2160     RETVAL = env->set_intermediate_dir_mode (env, mode);
2161     OUTPUT:
2162     RETVAL
2163    
2164     int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
2165     CODE:
2166     RETVAL = env->log_set_config (env, flags, onoff);
2167     OUTPUT:
2168     RETVAL
2169    
2170     #endif
2171    
2172    
2173 root 1.16 void set_errfile (DB_ENV *env, FILE *errfile = 0)
2174 root 1.14 CODE:
2175     env->set_errfile (env, errfile);
2176    
2177 root 1.16 void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
2178 root 1.14 CODE:
2179     env->set_msgfile (env, msgfile);
2180    
2181 root 1.25 int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
2182 root 1.14 CODE:
2183     RETVAL = env->set_verbose (env, which, onoff);
2184     OUTPUT:
2185     RETVAL
2186    
2187 root 1.3 int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
2188     CODE:
2189     RETVAL = env->set_encrypt (env, password, flags);
2190     OUTPUT:
2191     RETVAL
2192    
2193 root 1.17 int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2194 root 1.3 CODE:
2195     RETVAL = env->set_timeout (env, timeout * 1000000, flags);
2196     OUTPUT:
2197     RETVAL
2198 root 1.2
2199 root 1.8 int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
2200     CODE:
2201     RETVAL = env->set_mp_max_openfd (env, maxopenfd);
2202     OUTPUT:
2203     RETVAL
2204    
2205     int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
2206     CODE:
2207     RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
2208     OUTPUT:
2209     RETVAL
2210    
2211     int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
2212     CODE:
2213     RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
2214     OUTPUT:
2215     RETVAL
2216    
2217 root 1.9 int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
2218 root 1.8 CODE:
2219     RETVAL = env->set_lk_detect (env, detect);
2220     OUTPUT:
2221     RETVAL
2222    
2223     int set_lk_max_lockers (DB_ENV *env, U32 max)
2224     CODE:
2225     RETVAL = env->set_lk_max_lockers (env, max);
2226     OUTPUT:
2227     RETVAL
2228    
2229     int set_lk_max_locks (DB_ENV *env, U32 max)
2230     CODE:
2231     RETVAL = env->set_lk_max_locks (env, max);
2232     OUTPUT:
2233     RETVAL
2234    
2235     int set_lk_max_objects (DB_ENV *env, U32 max)
2236     CODE:
2237     RETVAL = env->set_lk_max_objects (env, max);
2238     OUTPUT:
2239     RETVAL
2240    
2241     int set_lg_bsize (DB_ENV *env, U32 max)
2242     CODE:
2243     RETVAL = env->set_lg_bsize (env, max);
2244     OUTPUT:
2245     RETVAL
2246    
2247     int set_lg_max (DB_ENV *env, U32 max)
2248     CODE:
2249     RETVAL = env->set_lg_max (env, max);
2250     OUTPUT:
2251     RETVAL
2252    
2253 root 1.47 #if DB_VERSION_MINOR >= 4
2254    
2255 root 1.22 int mutex_set_max (DB_ENV *env, U32 max)
2256     CODE:
2257     RETVAL = env->mutex_set_max (env, max);
2258     OUTPUT:
2259     RETVAL
2260    
2261     int mutex_set_increment (DB_ENV *env, U32 increment)
2262     CODE:
2263     RETVAL = env->mutex_set_increment (env, increment);
2264     OUTPUT:
2265     RETVAL
2266    
2267     int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
2268     CODE:
2269     RETVAL = env->mutex_set_tas_spins (env, tas_spins);
2270     OUTPUT:
2271     RETVAL
2272    
2273     int mutex_set_align (DB_ENV *env, U32 align)
2274     CODE:
2275     RETVAL = env->mutex_set_align (env, align);
2276     OUTPUT:
2277     RETVAL
2278    
2279 root 1.47 #endif
2280    
2281 root 1.5 DB_TXN *
2282     txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
2283     CODE:
2284     errno = env->txn_begin (env, parent, &RETVAL, flags);
2285     if (errno)
2286 root 1.6 croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
2287 root 1.5 OUTPUT:
2288     RETVAL
2289 root 1.2
2290 root 1.46 #if DB_VERSION_MINOR >= 5
2291    
2292 root 1.44 DB_TXN *
2293     cdsgroup_begin (DB_ENV *env)
2294     CODE:
2295     errno = env->cdsgroup_begin (env, &RETVAL);
2296     if (errno)
2297     croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
2298     OUTPUT:
2299     RETVAL
2300    
2301 root 1.46 #endif
2302    
2303 root 1.2 MODULE = BDB PACKAGE = BDB::Db
2304    
2305 root 1.5 void
2306 root 1.30 DESTROY (DB_ornuked *db)
2307 root 1.5 CODE:
2308     if (db)
2309     {
2310     SV *env = (SV *)db->app_private;
2311     db->close (db, 0);
2312     SvREFCNT_dec (env);
2313     }
2314    
2315 root 1.2 int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
2316 root 1.3 CODE:
2317     RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
2318     OUTPUT:
2319     RETVAL
2320 root 1.2
2321 root 1.60 int set_pagesize (DB *db, U32 pagesize)
2322     CODE:
2323     RETVAL = db->set_pagesize (db, pagesize);
2324     OUTPUT:
2325     RETVAL
2326    
2327 root 1.16 int set_flags (DB *db, U32 flags)
2328 root 1.3 CODE:
2329     RETVAL = db->set_flags (db, flags);
2330     OUTPUT:
2331     RETVAL
2332 root 1.2
2333     int set_encrypt (DB *db, const char *password, U32 flags)
2334 root 1.3 CODE:
2335     RETVAL = db->set_encrypt (db, password, flags);
2336     OUTPUT:
2337     RETVAL
2338 root 1.2
2339     int set_lorder (DB *db, int lorder)
2340 root 1.3 CODE:
2341     RETVAL = db->set_lorder (db, lorder);
2342     OUTPUT:
2343     RETVAL
2344 root 1.2
2345     int set_bt_minkey (DB *db, U32 minkey)
2346 root 1.3 CODE:
2347     RETVAL = db->set_bt_minkey (db, minkey);
2348     OUTPUT:
2349     RETVAL
2350 root 1.2
2351 root 1.16 int set_re_delim (DB *db, int delim)
2352 root 1.3 CODE:
2353     RETVAL = db->set_re_delim (db, delim);
2354     OUTPUT:
2355     RETVAL
2356 root 1.2
2357     int set_re_pad (DB *db, int re_pad)
2358 root 1.3 CODE:
2359     RETVAL = db->set_re_pad (db, re_pad);
2360     OUTPUT:
2361     RETVAL
2362 root 1.2
2363     int set_re_source (DB *db, char *source)
2364 root 1.3 CODE:
2365     RETVAL = db->set_re_source (db, source);
2366     OUTPUT:
2367     RETVAL
2368 root 1.2
2369     int set_re_len (DB *db, U32 re_len)
2370 root 1.3 CODE:
2371     RETVAL = db->set_re_len (db, re_len);
2372     OUTPUT:
2373     RETVAL
2374 root 1.2
2375     int set_h_ffactor (DB *db, U32 h_ffactor)
2376 root 1.3 CODE:
2377     RETVAL = db->set_h_ffactor (db, h_ffactor);
2378     OUTPUT:
2379     RETVAL
2380 root 1.2
2381     int set_h_nelem (DB *db, U32 h_nelem)
2382 root 1.3 CODE:
2383     RETVAL = db->set_h_nelem (db, h_nelem);
2384     OUTPUT:
2385     RETVAL
2386 root 1.2
2387     int set_q_extentsize (DB *db, U32 extentsize)
2388 root 1.3 CODE:
2389     RETVAL = db->set_q_extentsize (db, extentsize);
2390     OUTPUT:
2391     RETVAL
2392 root 1.2
2393 root 1.6 DBC *
2394     cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
2395     CODE:
2396     errno = db->cursor (db, txn, &RETVAL, flags);
2397     if (errno)
2398     croak ("DB->cursor: %s", db_strerror (errno));
2399     OUTPUT:
2400     RETVAL
2401    
2402 root 1.47 #if DB_VERSION_MINOR >= 3
2403    
2404 root 1.8 DB_SEQUENCE *
2405     sequence (DB *db, U32 flags = 0)
2406     CODE:
2407     {
2408     errno = db_sequence_create (&RETVAL, db, flags);
2409     if (errno)
2410     croak ("db_sequence_create: %s", db_strerror (errno));
2411     }
2412     OUTPUT:
2413     RETVAL
2414    
2415 root 1.47 #endif
2416    
2417 root 1.6
2418 root 1.5 MODULE = BDB PACKAGE = BDB::Txn
2419    
2420     void
2421 root 1.30 DESTROY (DB_TXN_ornuked *txn)
2422 root 1.5 CODE:
2423     if (txn)
2424     txn->abort (txn);
2425    
2426 root 1.17 int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
2427 root 1.5 CODE:
2428     RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
2429     OUTPUT:
2430     RETVAL
2431    
2432 root 1.17 int failed (DB_TXN *txn)
2433     CODE:
2434     RETVAL = !!(txn->flags & TXN_DEADLOCK);
2435     OUTPUT:
2436     RETVAL
2437    
2438 root 1.1
2439 root 1.6 MODULE = BDB PACKAGE = BDB::Cursor
2440    
2441     void
2442 root 1.30 DESTROY (DBC_ornuked *dbc)
2443 root 1.6 CODE:
2444     if (dbc)
2445     dbc->c_close (dbc);
2446    
2447 root 1.27 #if DB_VERSION_MINOR >= 6
2448    
2449     int set_priority (DBC *dbc, int priority)
2450     CODE:
2451     dbc->set_priority (dbc, priority);
2452    
2453     #endif
2454    
2455 root 1.47 #if DB_VERSION_MINOR >= 3
2456    
2457 root 1.8 MODULE = BDB PACKAGE = BDB::Sequence
2458    
2459     void
2460 root 1.30 DESTROY (DB_SEQUENCE_ornuked *seq)
2461 root 1.8 CODE:
2462     if (seq)
2463     seq->close (seq, 0);
2464    
2465     int initial_value (DB_SEQUENCE *seq, db_seq_t value)
2466     CODE:
2467     RETVAL = seq->initial_value (seq, value);
2468     OUTPUT:
2469     RETVAL
2470    
2471     int set_cachesize (DB_SEQUENCE *seq, U32 size)
2472     CODE:
2473     RETVAL = seq->set_cachesize (seq, size);
2474     OUTPUT:
2475     RETVAL
2476    
2477     int set_flags (DB_SEQUENCE *seq, U32 flags)
2478     CODE:
2479     RETVAL = seq->set_flags (seq, flags);
2480     OUTPUT:
2481     RETVAL
2482    
2483     int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
2484     CODE:
2485     RETVAL = seq->set_range (seq, min, max);
2486     OUTPUT:
2487     RETVAL
2488    
2489 root 1.47 #endif
2490    
2491 root 1.31