1 |
/* solaris */ |
2 |
#define _POSIX_PTHREAD_SEMANTICS 1 |
3 |
|
4 |
#if __linux && !defined(_GNU_SOURCE) |
5 |
# define _GNU_SOURCE |
6 |
#endif |
7 |
|
8 |
/* just in case */ |
9 |
#define _REENTRANT 1 |
10 |
|
11 |
#include <errno.h> |
12 |
|
13 |
#include "EXTERN.h" |
14 |
#include "perl.h" |
15 |
#include "XSUB.h" |
16 |
|
17 |
#include <pthread.h> |
18 |
|
19 |
#include <stddef.h> |
20 |
#include <stdlib.h> |
21 |
#include <errno.h> |
22 |
#include <sys/time.h> |
23 |
#include <sys/types.h> |
24 |
#include <limits.h> |
25 |
#include <unistd.h> |
26 |
#include <fcntl.h> |
27 |
|
28 |
#include <db.h> |
29 |
|
30 |
/* number of seconds after which idle threads exit */ |
31 |
#define IDLE_TIMEOUT 10 |
32 |
|
33 |
/* wether word reads are potentially non-atomic. |
34 |
* this is conservatice, likely most arches this runs |
35 |
* on have atomic word read/writes. |
36 |
*/ |
37 |
#ifndef WORDACCESS_UNSAFE |
38 |
# if __i386 || __x86_64 |
39 |
# define WORDACCESS_UNSAFE 0 |
40 |
# else |
41 |
# define WORDACCESS_UNSAFE 1 |
42 |
# endif |
43 |
#endif |
44 |
|
45 |
typedef DB_ENV DB_ENV_ornull; |
46 |
typedef DB_TXN DB_TXN_ornull; |
47 |
typedef DBC DBC_ornull; |
48 |
typedef DB DB_ornull; |
49 |
|
50 |
typedef SV SV8; /* byte-sv, used for argument-checking */ |
51 |
typedef char *octetstring; |
52 |
|
53 |
static SV *prepare_cb; |
54 |
|
55 |
static inline char * |
56 |
strdup_ornull (const char *s) |
57 |
{ |
58 |
return s ? strdup (s) : 0; |
59 |
} |
60 |
|
61 |
static inline void |
62 |
sv_to_dbt (DBT *dbt, SV *sv) |
63 |
{ |
64 |
STRLEN len; |
65 |
char *data = SvPVbyte (sv, len); |
66 |
|
67 |
dbt->data = malloc (len); |
68 |
memcpy (dbt->data, data, len); |
69 |
dbt->size = len; |
70 |
dbt->flags = DB_DBT_REALLOC; |
71 |
} |
72 |
|
73 |
static inline void |
74 |
dbt_to_sv (SV *sv, DBT *dbt) |
75 |
{ |
76 |
if (sv) |
77 |
{ |
78 |
SvREADONLY_off (sv); |
79 |
sv_setpvn_mg (sv, dbt->data, dbt->size); |
80 |
SvREFCNT_dec (sv); |
81 |
} |
82 |
|
83 |
free (dbt->data); |
84 |
} |
85 |
|
86 |
enum { |
87 |
REQ_QUIT, |
88 |
REQ_ENV_OPEN, REQ_ENV_CLOSE, |
89 |
REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, |
90 |
REQ_TXN_COMMIT, REQ_TXN_ABORT, |
91 |
REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL, |
92 |
}; |
93 |
|
94 |
typedef struct aio_cb |
95 |
{ |
96 |
struct aio_cb *volatile next; |
97 |
SV *callback; |
98 |
int type, pri, result; |
99 |
|
100 |
DB_ENV *env; |
101 |
DB *db; |
102 |
DB_TXN *txn; |
103 |
DBC *dbc; |
104 |
|
105 |
UV uv1; |
106 |
int int1, int2; |
107 |
U32 uint1, uint2; |
108 |
char *buf1, *buf2; |
109 |
SV *sv1, *sv2, *sv3; |
110 |
|
111 |
DBT dbt1, dbt2, dbt3; |
112 |
} aio_cb; |
113 |
|
114 |
typedef aio_cb *aio_req; |
115 |
|
116 |
enum { |
117 |
PRI_MIN = -4, |
118 |
PRI_MAX = 4, |
119 |
|
120 |
DEFAULT_PRI = 0, |
121 |
PRI_BIAS = -PRI_MIN, |
122 |
NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
123 |
}; |
124 |
|
125 |
#define AIO_TICKS ((1000000 + 1023) >> 10) |
126 |
|
127 |
static unsigned int max_poll_time = 0; |
128 |
static unsigned int max_poll_reqs = 0; |
129 |
|
130 |
/* calculcate time difference in ~1/AIO_TICKS of a second */ |
131 |
static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
132 |
{ |
133 |
return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
134 |
+ ((tv2->tv_usec - tv1->tv_usec) >> 10); |
135 |
} |
136 |
|
137 |
static int next_pri = DEFAULT_PRI + PRI_BIAS; |
138 |
|
139 |
static unsigned int started, idle, wanted; |
140 |
|
141 |
#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
142 |
# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
143 |
#else |
144 |
# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
145 |
#endif |
146 |
|
147 |
#define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
148 |
#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
149 |
|
150 |
/* worker threads management */ |
151 |
static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
152 |
|
153 |
typedef struct worker { |
154 |
/* locked by wrklock */ |
155 |
struct worker *prev, *next; |
156 |
|
157 |
pthread_t tid; |
158 |
|
159 |
/* locked by reslock, reqlock or wrklock */ |
160 |
aio_req req; /* currently processed request */ |
161 |
void *dbuf; |
162 |
DIR *dirp; |
163 |
} worker; |
164 |
|
165 |
static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
166 |
|
167 |
static void worker_clear (worker *wrk) |
168 |
{ |
169 |
} |
170 |
|
171 |
static void worker_free (worker *wrk) |
172 |
{ |
173 |
wrk->next->prev = wrk->prev; |
174 |
wrk->prev->next = wrk->next; |
175 |
|
176 |
free (wrk); |
177 |
} |
178 |
|
179 |
static volatile unsigned int nreqs, nready, npending; |
180 |
static volatile unsigned int max_idle = 4; |
181 |
static volatile unsigned int max_outstanding = 0xffffffff; |
182 |
static int respipe [2]; |
183 |
|
184 |
static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
185 |
static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
186 |
static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
187 |
|
188 |
#if WORDACCESS_UNSAFE |
189 |
|
190 |
static unsigned int get_nready () |
191 |
{ |
192 |
unsigned int retval; |
193 |
|
194 |
LOCK (reqlock); |
195 |
retval = nready; |
196 |
UNLOCK (reqlock); |
197 |
|
198 |
return retval; |
199 |
} |
200 |
|
201 |
static unsigned int get_npending () |
202 |
{ |
203 |
unsigned int retval; |
204 |
|
205 |
LOCK (reslock); |
206 |
retval = npending; |
207 |
UNLOCK (reslock); |
208 |
|
209 |
return retval; |
210 |
} |
211 |
|
212 |
static unsigned int get_nthreads () |
213 |
{ |
214 |
unsigned int retval; |
215 |
|
216 |
LOCK (wrklock); |
217 |
retval = started; |
218 |
UNLOCK (wrklock); |
219 |
|
220 |
return retval; |
221 |
} |
222 |
|
223 |
#else |
224 |
|
225 |
# define get_nready() nready |
226 |
# define get_npending() npending |
227 |
# define get_nthreads() started |
228 |
|
229 |
#endif |
230 |
|
231 |
/* |
232 |
* a somewhat faster data structure might be nice, but |
233 |
* with 8 priorities this actually needs <20 insns |
234 |
* per shift, the most expensive operation. |
235 |
*/ |
236 |
typedef struct { |
237 |
aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
238 |
int size; |
239 |
} reqq; |
240 |
|
241 |
static reqq req_queue; |
242 |
static reqq res_queue; |
243 |
|
244 |
int reqq_push (reqq *q, aio_req req) |
245 |
{ |
246 |
int pri = req->pri; |
247 |
req->next = 0; |
248 |
|
249 |
if (q->qe[pri]) |
250 |
{ |
251 |
q->qe[pri]->next = req; |
252 |
q->qe[pri] = req; |
253 |
} |
254 |
else |
255 |
q->qe[pri] = q->qs[pri] = req; |
256 |
|
257 |
return q->size++; |
258 |
} |
259 |
|
260 |
aio_req reqq_shift (reqq *q) |
261 |
{ |
262 |
int pri; |
263 |
|
264 |
if (!q->size) |
265 |
return 0; |
266 |
|
267 |
--q->size; |
268 |
|
269 |
for (pri = NUM_PRI; pri--; ) |
270 |
{ |
271 |
aio_req req = q->qs[pri]; |
272 |
|
273 |
if (req) |
274 |
{ |
275 |
if (!(q->qs[pri] = req->next)) |
276 |
q->qe[pri] = 0; |
277 |
|
278 |
return req; |
279 |
} |
280 |
} |
281 |
|
282 |
abort (); |
283 |
} |
284 |
|
285 |
static int poll_cb (); |
286 |
static void req_free (aio_req req); |
287 |
static void req_cancel (aio_req req); |
288 |
|
289 |
static int req_invoke (aio_req req) |
290 |
{ |
291 |
dSP; |
292 |
|
293 |
if (SvOK (req->callback)) |
294 |
{ |
295 |
ENTER; |
296 |
SAVETMPS; |
297 |
PUSHMARK (SP); |
298 |
EXTEND (SP, 1); |
299 |
|
300 |
switch (req->type) |
301 |
{ |
302 |
case REQ_DB_CLOSE: |
303 |
SvREFCNT_dec (req->sv1); |
304 |
break; |
305 |
|
306 |
case REQ_DB_GET: |
307 |
case REQ_DB_PGET: |
308 |
dbt_to_sv (req->sv3, &req->dbt3); |
309 |
break; |
310 |
|
311 |
case REQ_C_GET: |
312 |
case REQ_C_PGET: |
313 |
dbt_to_sv (req->sv1, &req->dbt1); |
314 |
dbt_to_sv (req->sv2, &req->dbt2); |
315 |
dbt_to_sv (req->sv3, &req->dbt3); |
316 |
break; |
317 |
} |
318 |
|
319 |
errno = req->result; |
320 |
|
321 |
PUTBACK; |
322 |
call_sv (req->callback, G_VOID | G_EVAL); |
323 |
SPAGAIN; |
324 |
|
325 |
FREETMPS; |
326 |
LEAVE; |
327 |
} |
328 |
|
329 |
return !SvTRUE (ERRSV); |
330 |
} |
331 |
|
332 |
static void req_free (aio_req req) |
333 |
{ |
334 |
free (req->buf1); |
335 |
free (req->buf2); |
336 |
Safefree (req); |
337 |
} |
338 |
|
339 |
static void *aio_proc (void *arg); |
340 |
|
341 |
static void start_thread (void) |
342 |
{ |
343 |
sigset_t fullsigset, oldsigset; |
344 |
pthread_attr_t attr; |
345 |
|
346 |
worker *wrk = calloc (1, sizeof (worker)); |
347 |
|
348 |
if (!wrk) |
349 |
croak ("unable to allocate worker thread data"); |
350 |
|
351 |
pthread_attr_init (&attr); |
352 |
pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
353 |
#ifdef PTHREAD_SCOPE_PROCESS |
354 |
pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
355 |
#endif |
356 |
|
357 |
sigfillset (&fullsigset); |
358 |
|
359 |
LOCK (wrklock); |
360 |
pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
361 |
|
362 |
if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
363 |
{ |
364 |
wrk->prev = &wrk_first; |
365 |
wrk->next = wrk_first.next; |
366 |
wrk_first.next->prev = wrk; |
367 |
wrk_first.next = wrk; |
368 |
++started; |
369 |
} |
370 |
else |
371 |
free (wrk); |
372 |
|
373 |
pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
374 |
UNLOCK (wrklock); |
375 |
} |
376 |
|
377 |
static void maybe_start_thread () |
378 |
{ |
379 |
if (get_nthreads () >= wanted) |
380 |
return; |
381 |
|
382 |
/* todo: maybe use idle here, but might be less exact */ |
383 |
if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
384 |
return; |
385 |
|
386 |
start_thread (); |
387 |
} |
388 |
|
389 |
static void req_send (aio_req req) |
390 |
{ |
391 |
SV *wait_callback = 0; |
392 |
|
393 |
// synthesize callback if none given |
394 |
if (!SvOK (req->callback)) |
395 |
{ |
396 |
dSP; |
397 |
PUSHMARK (SP); |
398 |
PUTBACK; |
399 |
int count = call_sv (prepare_cb, G_ARRAY); |
400 |
SPAGAIN; |
401 |
|
402 |
if (count != 2) |
403 |
croak ("prepare callback must return exactly two values\n"); |
404 |
|
405 |
wait_callback = SvREFCNT_inc (POPs); |
406 |
SvREFCNT_dec (req->callback); |
407 |
req->callback = SvREFCNT_inc (POPs); |
408 |
} |
409 |
|
410 |
++nreqs; |
411 |
|
412 |
LOCK (reqlock); |
413 |
++nready; |
414 |
reqq_push (&req_queue, req); |
415 |
pthread_cond_signal (&reqwait); |
416 |
UNLOCK (reqlock); |
417 |
|
418 |
maybe_start_thread (); |
419 |
|
420 |
if (wait_callback) |
421 |
{ |
422 |
dSP; |
423 |
PUSHMARK (SP); |
424 |
PUTBACK; |
425 |
call_sv (wait_callback, G_DISCARD); |
426 |
SvREFCNT_dec (wait_callback); |
427 |
} |
428 |
} |
429 |
|
430 |
static void end_thread (void) |
431 |
{ |
432 |
aio_req req; |
433 |
|
434 |
Newz (0, req, 1, aio_cb); |
435 |
|
436 |
req->type = REQ_QUIT; |
437 |
req->pri = PRI_MAX + PRI_BIAS; |
438 |
|
439 |
LOCK (reqlock); |
440 |
reqq_push (&req_queue, req); |
441 |
pthread_cond_signal (&reqwait); |
442 |
UNLOCK (reqlock); |
443 |
|
444 |
LOCK (wrklock); |
445 |
--started; |
446 |
UNLOCK (wrklock); |
447 |
} |
448 |
|
449 |
static void set_max_idle (int nthreads) |
450 |
{ |
451 |
if (WORDACCESS_UNSAFE) LOCK (reqlock); |
452 |
max_idle = nthreads <= 0 ? 1 : nthreads; |
453 |
if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
454 |
} |
455 |
|
456 |
static void min_parallel (int nthreads) |
457 |
{ |
458 |
if (wanted < nthreads) |
459 |
wanted = nthreads; |
460 |
} |
461 |
|
462 |
static void max_parallel (int nthreads) |
463 |
{ |
464 |
if (wanted > nthreads) |
465 |
wanted = nthreads; |
466 |
|
467 |
while (started > wanted) |
468 |
end_thread (); |
469 |
} |
470 |
|
471 |
static void poll_wait () |
472 |
{ |
473 |
fd_set rfd; |
474 |
|
475 |
while (nreqs) |
476 |
{ |
477 |
int size; |
478 |
if (WORDACCESS_UNSAFE) LOCK (reslock); |
479 |
size = res_queue.size; |
480 |
if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
481 |
|
482 |
if (size) |
483 |
return; |
484 |
|
485 |
maybe_start_thread (); |
486 |
|
487 |
FD_ZERO(&rfd); |
488 |
FD_SET(respipe [0], &rfd); |
489 |
|
490 |
select (respipe [0] + 1, &rfd, 0, 0, 0); |
491 |
} |
492 |
} |
493 |
|
494 |
static int poll_cb () |
495 |
{ |
496 |
dSP; |
497 |
int count = 0; |
498 |
int maxreqs = max_poll_reqs; |
499 |
int do_croak = 0; |
500 |
struct timeval tv_start, tv_now; |
501 |
aio_req req; |
502 |
|
503 |
if (max_poll_time) |
504 |
gettimeofday (&tv_start, 0); |
505 |
|
506 |
for (;;) |
507 |
{ |
508 |
for (;;) |
509 |
{ |
510 |
maybe_start_thread (); |
511 |
|
512 |
LOCK (reslock); |
513 |
req = reqq_shift (&res_queue); |
514 |
|
515 |
if (req) |
516 |
{ |
517 |
--npending; |
518 |
|
519 |
if (!res_queue.size) |
520 |
{ |
521 |
/* read any signals sent by the worker threads */ |
522 |
char buf [4]; |
523 |
while (read (respipe [0], buf, 4) == 4) |
524 |
; |
525 |
} |
526 |
} |
527 |
|
528 |
UNLOCK (reslock); |
529 |
|
530 |
if (!req) |
531 |
break; |
532 |
|
533 |
--nreqs; |
534 |
|
535 |
if (!req_invoke (req)) |
536 |
{ |
537 |
req_free (req); |
538 |
croak (0); |
539 |
} |
540 |
|
541 |
count++; |
542 |
|
543 |
req_free (req); |
544 |
|
545 |
if (maxreqs && !--maxreqs) |
546 |
break; |
547 |
|
548 |
if (max_poll_time) |
549 |
{ |
550 |
gettimeofday (&tv_now, 0); |
551 |
|
552 |
if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
553 |
break; |
554 |
} |
555 |
} |
556 |
|
557 |
if (nreqs <= max_outstanding) |
558 |
break; |
559 |
|
560 |
poll_wait (); |
561 |
|
562 |
++maxreqs; |
563 |
} |
564 |
|
565 |
return count; |
566 |
} |
567 |
|
568 |
static void create_pipe () |
569 |
{ |
570 |
if (pipe (respipe)) |
571 |
croak ("unable to initialize result pipe"); |
572 |
|
573 |
if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
574 |
croak ("cannot set result pipe to nonblocking mode"); |
575 |
|
576 |
if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
577 |
croak ("cannot set result pipe to nonblocking mode"); |
578 |
} |
579 |
|
580 |
/*****************************************************************************/ |
581 |
|
582 |
static void *aio_proc (void *thr_arg) |
583 |
{ |
584 |
aio_req req; |
585 |
struct timespec ts; |
586 |
worker *self = (worker *)thr_arg; |
587 |
|
588 |
/* try to distribute timeouts somewhat evenly */ |
589 |
ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
590 |
* (1000000000UL / 1024UL); |
591 |
|
592 |
for (;;) |
593 |
{ |
594 |
ts.tv_sec = time (0) + IDLE_TIMEOUT; |
595 |
|
596 |
LOCK (reqlock); |
597 |
|
598 |
for (;;) |
599 |
{ |
600 |
self->req = req = reqq_shift (&req_queue); |
601 |
|
602 |
if (req) |
603 |
break; |
604 |
|
605 |
++idle; |
606 |
|
607 |
if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
608 |
== ETIMEDOUT) |
609 |
{ |
610 |
if (idle > max_idle) |
611 |
{ |
612 |
--idle; |
613 |
UNLOCK (reqlock); |
614 |
LOCK (wrklock); |
615 |
--started; |
616 |
UNLOCK (wrklock); |
617 |
goto quit; |
618 |
} |
619 |
|
620 |
/* we are allowed to idle, so do so without any timeout */ |
621 |
pthread_cond_wait (&reqwait, &reqlock); |
622 |
ts.tv_sec = time (0) + IDLE_TIMEOUT; |
623 |
} |
624 |
|
625 |
--idle; |
626 |
} |
627 |
|
628 |
--nready; |
629 |
|
630 |
UNLOCK (reqlock); |
631 |
|
632 |
switch (req->type) |
633 |
{ |
634 |
case REQ_QUIT: |
635 |
goto quit; |
636 |
|
637 |
case REQ_ENV_OPEN: |
638 |
req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1); |
639 |
break; |
640 |
|
641 |
case REQ_ENV_CLOSE: |
642 |
req->result = req->env->close (req->env, req->uint1); |
643 |
break; |
644 |
|
645 |
case REQ_DB_OPEN: |
646 |
req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2); |
647 |
break; |
648 |
|
649 |
case REQ_DB_CLOSE: |
650 |
req->result = req->db->close (req->db, req->uint1); |
651 |
break; |
652 |
|
653 |
case REQ_DB_COMPACT: |
654 |
req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0); |
655 |
break; |
656 |
|
657 |
case REQ_DB_SYNC: |
658 |
req->result = req->db->sync (req->db, req->uint1); |
659 |
break; |
660 |
|
661 |
case REQ_DB_PUT: |
662 |
req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1); |
663 |
break; |
664 |
|
665 |
case REQ_DB_GET: |
666 |
req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1); |
667 |
break; |
668 |
|
669 |
case REQ_DB_PGET: |
670 |
req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1); |
671 |
break; |
672 |
|
673 |
case REQ_DB_DEL: |
674 |
req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1); |
675 |
break; |
676 |
|
677 |
case REQ_TXN_COMMIT: |
678 |
req->result = req->txn->commit (req->txn, req->uint1); |
679 |
break; |
680 |
|
681 |
case REQ_TXN_ABORT: |
682 |
req->result = req->txn->abort (req->txn); |
683 |
break; |
684 |
|
685 |
case REQ_C_CLOSE: |
686 |
req->result = req->dbc->c_close (req->dbc); |
687 |
break; |
688 |
|
689 |
case REQ_C_COUNT: |
690 |
{ |
691 |
db_recno_t recno; |
692 |
req->result = req->dbc->c_count (req->dbc, &recno, req->uint1); |
693 |
req->uv1 = recno; |
694 |
} |
695 |
break; |
696 |
|
697 |
case REQ_C_PUT: |
698 |
req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1); |
699 |
break; |
700 |
|
701 |
case REQ_C_GET: |
702 |
req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1); |
703 |
break; |
704 |
|
705 |
case REQ_C_PGET: |
706 |
req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1); |
707 |
break; |
708 |
|
709 |
case REQ_C_DEL: |
710 |
req->result = req->dbc->c_del (req->dbc, req->uint1); |
711 |
break; |
712 |
|
713 |
default: |
714 |
req->result = ENOSYS; |
715 |
break; |
716 |
} |
717 |
|
718 |
LOCK (reslock); |
719 |
|
720 |
++npending; |
721 |
|
722 |
if (!reqq_push (&res_queue, req)) |
723 |
/* write a dummy byte to the pipe so fh becomes ready */ |
724 |
write (respipe [1], &respipe, 1); |
725 |
|
726 |
self->req = 0; |
727 |
worker_clear (self); |
728 |
|
729 |
UNLOCK (reslock); |
730 |
} |
731 |
|
732 |
quit: |
733 |
LOCK (wrklock); |
734 |
worker_free (self); |
735 |
UNLOCK (wrklock); |
736 |
|
737 |
return 0; |
738 |
} |
739 |
|
740 |
/*****************************************************************************/ |
741 |
|
742 |
static void atfork_prepare (void) |
743 |
{ |
744 |
LOCK (wrklock); |
745 |
LOCK (reqlock); |
746 |
LOCK (reslock); |
747 |
} |
748 |
|
749 |
static void atfork_parent (void) |
750 |
{ |
751 |
UNLOCK (reslock); |
752 |
UNLOCK (reqlock); |
753 |
UNLOCK (wrklock); |
754 |
} |
755 |
|
756 |
static void atfork_child (void) |
757 |
{ |
758 |
aio_req prv; |
759 |
|
760 |
while (prv = reqq_shift (&req_queue)) |
761 |
req_free (prv); |
762 |
|
763 |
while (prv = reqq_shift (&res_queue)) |
764 |
req_free (prv); |
765 |
|
766 |
while (wrk_first.next != &wrk_first) |
767 |
{ |
768 |
worker *wrk = wrk_first.next; |
769 |
|
770 |
if (wrk->req) |
771 |
req_free (wrk->req); |
772 |
|
773 |
worker_clear (wrk); |
774 |
worker_free (wrk); |
775 |
} |
776 |
|
777 |
started = 0; |
778 |
idle = 0; |
779 |
nreqs = 0; |
780 |
nready = 0; |
781 |
npending = 0; |
782 |
|
783 |
close (respipe [0]); |
784 |
close (respipe [1]); |
785 |
create_pipe (); |
786 |
|
787 |
atfork_parent (); |
788 |
} |
789 |
|
790 |
#define dREQ(reqtype) \ |
791 |
aio_req req; \ |
792 |
int req_pri = next_pri; \ |
793 |
next_pri = DEFAULT_PRI + PRI_BIAS; \ |
794 |
\ |
795 |
if (SvOK (callback) && !SvROK (callback)) \ |
796 |
croak ("callback must be undef or of reference type"); \ |
797 |
\ |
798 |
Newz (0, req, 1, aio_cb); \ |
799 |
if (!req) \ |
800 |
croak ("out of memory during aio_req allocation"); \ |
801 |
\ |
802 |
req->callback = newSVsv (callback); \ |
803 |
req->type = (reqtype); \ |
804 |
req->pri = req_pri |
805 |
|
806 |
#define REQ_SEND \ |
807 |
req_send (req) |
808 |
|
809 |
#define SvPTR(var, arg, type, class, nullok) \ |
810 |
if (!SvOK (arg)) \ |
811 |
{ \ |
812 |
if (!nullok) \ |
813 |
croak (# var " must be a " # class " object, not undef"); \ |
814 |
\ |
815 |
(var) = 0; \ |
816 |
} \ |
817 |
else if (sv_derived_from ((arg), # class)) \ |
818 |
{ \ |
819 |
IV tmp = SvIV ((SV*) SvRV (arg)); \ |
820 |
(var) = INT2PTR (type, tmp); \ |
821 |
if (!var) \ |
822 |
croak (# var " is not a valid " # class " object anymore"); \ |
823 |
} \ |
824 |
else \ |
825 |
croak (# var " is not of type " # class); \ |
826 |
\ |
827 |
|
828 |
static void |
829 |
ptr_nuke (SV *sv) |
830 |
{ |
831 |
assert (SvROK (sv)); |
832 |
sv_setiv (SvRV (sv), 0); |
833 |
} |
834 |
|
835 |
MODULE = BDB PACKAGE = BDB |
836 |
|
837 |
PROTOTYPES: ENABLE |
838 |
|
839 |
BOOT: |
840 |
{ |
841 |
HV *stash = gv_stashpv ("BDB", 1); |
842 |
|
843 |
static const struct { |
844 |
const char *name; |
845 |
IV iv; |
846 |
} *civ, const_iv[] = { |
847 |
#define const_iv(name) { # name, (IV)DB_ ## name }, |
848 |
const_iv (RPCCLIENT) |
849 |
const_iv (INIT_CDB) |
850 |
const_iv (INIT_LOCK) |
851 |
const_iv (INIT_LOG) |
852 |
const_iv (INIT_MPOOL) |
853 |
const_iv (INIT_REP) |
854 |
const_iv (INIT_TXN) |
855 |
const_iv (RECOVER) |
856 |
const_iv (INIT_TXN) |
857 |
const_iv (RECOVER_FATAL) |
858 |
const_iv (CREATE) |
859 |
const_iv (USE_ENVIRON) |
860 |
const_iv (USE_ENVIRON_ROOT) |
861 |
const_iv (LOCKDOWN) |
862 |
const_iv (PRIVATE) |
863 |
const_iv (REGISTER) |
864 |
const_iv (SYSTEM_MEM) |
865 |
const_iv (AUTO_COMMIT) |
866 |
const_iv (CDB_ALLDB) |
867 |
const_iv (DIRECT_DB) |
868 |
const_iv (DIRECT_LOG) |
869 |
const_iv (DSYNC_DB) |
870 |
const_iv (DSYNC_LOG) |
871 |
const_iv (LOG_AUTOREMOVE) |
872 |
const_iv (LOG_INMEMORY) |
873 |
const_iv (NOLOCKING) |
874 |
const_iv (MULTIVERSION) |
875 |
const_iv (NOMMAP) |
876 |
const_iv (NOPANIC) |
877 |
const_iv (OVERWRITE) |
878 |
const_iv (PANIC_ENVIRONMENT) |
879 |
const_iv (REGION_INIT) |
880 |
const_iv (TIME_NOTGRANTED) |
881 |
const_iv (TXN_NOSYNC) |
882 |
const_iv (TXN_SNAPSHOT) |
883 |
const_iv (TXN_WRITE_NOSYNC) |
884 |
const_iv (WRITECURSOR) |
885 |
const_iv (YIELDCPU) |
886 |
const_iv (ENCRYPT_AES) |
887 |
const_iv (XA_CREATE) |
888 |
const_iv (BTREE) |
889 |
const_iv (HASH) |
890 |
const_iv (QUEUE) |
891 |
const_iv (RECNO) |
892 |
const_iv (UNKNOWN) |
893 |
const_iv (EXCL) |
894 |
const_iv (READ_COMMITTED) |
895 |
const_iv (READ_UNCOMMITTED) |
896 |
const_iv (TRUNCATE) |
897 |
const_iv (NOSYNC) |
898 |
const_iv (CHKSUM) |
899 |
const_iv (ENCRYPT) |
900 |
const_iv (TXN_NOT_DURABLE) |
901 |
const_iv (DUP) |
902 |
const_iv (DUPSORT) |
903 |
const_iv (RECNUM) |
904 |
const_iv (RENUMBER) |
905 |
const_iv (REVSPLITOFF) |
906 |
const_iv (INORDER) |
907 |
const_iv (CONSUME) |
908 |
const_iv (CONSUME_WAIT) |
909 |
const_iv (GET_BOTH) |
910 |
const_iv (GET_BOTH_RANGE) |
911 |
//const_iv (SET_RECNO) |
912 |
//const_iv (MULTIPLE) |
913 |
const_iv (SNAPSHOT) |
914 |
const_iv (JOIN_ITEM) |
915 |
const_iv (RMW) |
916 |
|
917 |
const_iv (NOTFOUND) |
918 |
const_iv (KEYEMPTY) |
919 |
const_iv (LOCK_DEADLOCK) |
920 |
const_iv (LOCK_NOTGRANTED) |
921 |
const_iv (RUNRECOVERY) |
922 |
const_iv (OLD_VERSION) |
923 |
const_iv (REP_HANDLE_DEAD) |
924 |
const_iv (REP_LOCKOUT) |
925 |
const_iv (SECONDARY_BAD) |
926 |
|
927 |
const_iv (FREE_SPACE) |
928 |
const_iv (FREELIST_ONLY) |
929 |
|
930 |
const_iv (APPEND) |
931 |
const_iv (NODUPDATA) |
932 |
const_iv (NOOVERWRITE) |
933 |
|
934 |
const_iv (TXN_NOWAIT) |
935 |
const_iv (TXN_SNAPSHOT) |
936 |
const_iv (TXN_SYNC) |
937 |
|
938 |
const_iv (SET_LOCK_TIMEOUT) |
939 |
const_iv (SET_TXN_TIMEOUT) |
940 |
|
941 |
const_iv (JOIN_ITEM) |
942 |
const_iv (FIRST) |
943 |
const_iv (NEXT) |
944 |
const_iv (NEXT_DUP) |
945 |
const_iv (NEXT_NODUP) |
946 |
const_iv (PREV) |
947 |
const_iv (PREV_NODUP) |
948 |
const_iv (SET) |
949 |
const_iv (SET_RANGE) |
950 |
const_iv (LAST) |
951 |
const_iv (BEFORE) |
952 |
const_iv (AFTER) |
953 |
const_iv (CURRENT) |
954 |
const_iv (KEYFIRST) |
955 |
const_iv (KEYLAST) |
956 |
const_iv (NODUPDATA) |
957 |
}; |
958 |
|
959 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
960 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
961 |
|
962 |
create_pipe (); |
963 |
pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
964 |
} |
965 |
|
966 |
void |
967 |
max_poll_reqs (int nreqs) |
968 |
PROTOTYPE: $ |
969 |
CODE: |
970 |
max_poll_reqs = nreqs; |
971 |
|
972 |
void |
973 |
max_poll_time (double nseconds) |
974 |
PROTOTYPE: $ |
975 |
CODE: |
976 |
max_poll_time = nseconds * AIO_TICKS; |
977 |
|
978 |
void |
979 |
min_parallel (int nthreads) |
980 |
PROTOTYPE: $ |
981 |
|
982 |
void |
983 |
max_parallel (int nthreads) |
984 |
PROTOTYPE: $ |
985 |
|
986 |
void |
987 |
max_idle (int nthreads) |
988 |
PROTOTYPE: $ |
989 |
CODE: |
990 |
set_max_idle (nthreads); |
991 |
|
992 |
int |
993 |
max_outstanding (int maxreqs) |
994 |
PROTOTYPE: $ |
995 |
CODE: |
996 |
RETVAL = max_outstanding; |
997 |
max_outstanding = maxreqs; |
998 |
OUTPUT: |
999 |
RETVAL |
1000 |
|
1001 |
int |
1002 |
dbreq_pri (int pri = 0) |
1003 |
PROTOTYPE: ;$ |
1004 |
CODE: |
1005 |
RETVAL = next_pri - PRI_BIAS; |
1006 |
if (items > 0) |
1007 |
{ |
1008 |
if (pri < PRI_MIN) pri = PRI_MIN; |
1009 |
if (pri > PRI_MAX) pri = PRI_MAX; |
1010 |
next_pri = pri + PRI_BIAS; |
1011 |
} |
1012 |
OUTPUT: |
1013 |
RETVAL |
1014 |
|
1015 |
void |
1016 |
dbreq_nice (int nice = 0) |
1017 |
CODE: |
1018 |
nice = next_pri - nice; |
1019 |
if (nice < PRI_MIN) nice = PRI_MIN; |
1020 |
if (nice > PRI_MAX) nice = PRI_MAX; |
1021 |
next_pri = nice + PRI_BIAS; |
1022 |
|
1023 |
void |
1024 |
flush () |
1025 |
PROTOTYPE: |
1026 |
CODE: |
1027 |
while (nreqs) |
1028 |
{ |
1029 |
poll_wait (); |
1030 |
poll_cb (); |
1031 |
} |
1032 |
|
1033 |
int |
1034 |
poll () |
1035 |
PROTOTYPE: |
1036 |
CODE: |
1037 |
poll_wait (); |
1038 |
RETVAL = poll_cb (); |
1039 |
OUTPUT: |
1040 |
RETVAL |
1041 |
|
1042 |
int |
1043 |
poll_fileno () |
1044 |
PROTOTYPE: |
1045 |
CODE: |
1046 |
RETVAL = respipe [0]; |
1047 |
OUTPUT: |
1048 |
RETVAL |
1049 |
|
1050 |
int |
1051 |
poll_cb (...) |
1052 |
PROTOTYPE: |
1053 |
CODE: |
1054 |
RETVAL = poll_cb (); |
1055 |
OUTPUT: |
1056 |
RETVAL |
1057 |
|
1058 |
void |
1059 |
poll_wait () |
1060 |
PROTOTYPE: |
1061 |
CODE: |
1062 |
poll_wait (); |
1063 |
|
1064 |
int |
1065 |
nreqs () |
1066 |
PROTOTYPE: |
1067 |
CODE: |
1068 |
RETVAL = nreqs; |
1069 |
OUTPUT: |
1070 |
RETVAL |
1071 |
|
1072 |
int |
1073 |
nready () |
1074 |
PROTOTYPE: |
1075 |
CODE: |
1076 |
RETVAL = get_nready (); |
1077 |
OUTPUT: |
1078 |
RETVAL |
1079 |
|
1080 |
int |
1081 |
npending () |
1082 |
PROTOTYPE: |
1083 |
CODE: |
1084 |
RETVAL = get_npending (); |
1085 |
OUTPUT: |
1086 |
RETVAL |
1087 |
|
1088 |
int |
1089 |
nthreads () |
1090 |
PROTOTYPE: |
1091 |
CODE: |
1092 |
if (WORDACCESS_UNSAFE) LOCK (wrklock); |
1093 |
RETVAL = started; |
1094 |
if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
1095 |
OUTPUT: |
1096 |
RETVAL |
1097 |
|
1098 |
void |
1099 |
set_sync_prepare (SV *cb) |
1100 |
PROTOTYPE: & |
1101 |
CODE: |
1102 |
SvREFCNT_dec (prepare_cb); |
1103 |
prepare_cb = newSVsv (cb); |
1104 |
|
1105 |
DB_ENV * |
1106 |
db_env_create (U32 env_flags = 0) |
1107 |
CODE: |
1108 |
{ |
1109 |
errno = db_env_create (&RETVAL, env_flags); |
1110 |
if (errno) |
1111 |
croak ("db_env_create: %s", db_strerror (errno)); |
1112 |
} |
1113 |
OUTPUT: |
1114 |
RETVAL |
1115 |
|
1116 |
void |
1117 |
db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef) |
1118 |
CODE: |
1119 |
{ |
1120 |
dREQ (REQ_ENV_OPEN); |
1121 |
req->env = env; |
1122 |
req->uint1 = open_flags | DB_THREAD; |
1123 |
req->int1 = mode; |
1124 |
req->buf1 = strdup_ornull (db_home); |
1125 |
REQ_SEND; |
1126 |
} |
1127 |
|
1128 |
void |
1129 |
db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef) |
1130 |
CODE: |
1131 |
{ |
1132 |
dREQ (REQ_ENV_CLOSE); |
1133 |
req->env = env; |
1134 |
req->uint1 = flags; |
1135 |
REQ_SEND; |
1136 |
ptr_nuke (ST (0)); |
1137 |
} |
1138 |
|
1139 |
DB * |
1140 |
db_create (DB_ENV *env = 0, U32 flags = 0) |
1141 |
CODE: |
1142 |
{ |
1143 |
errno = db_create (&RETVAL, env, flags); |
1144 |
if (errno) |
1145 |
croak ("db_create: %s", db_strerror (errno)); |
1146 |
|
1147 |
if (RETVAL) |
1148 |
RETVAL->app_private = (void *)newSVsv (ST (0)); |
1149 |
} |
1150 |
OUTPUT: |
1151 |
RETVAL |
1152 |
|
1153 |
void |
1154 |
db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef) |
1155 |
CODE: |
1156 |
{ |
1157 |
dREQ (REQ_DB_OPEN); |
1158 |
req->db = db; |
1159 |
req->txn = txnid; |
1160 |
req->buf1 = strdup_ornull (file); |
1161 |
req->buf2 = strdup_ornull (database); |
1162 |
req->int1 = type; |
1163 |
req->uint1 = flags | DB_THREAD; |
1164 |
req->int2 = mode; |
1165 |
REQ_SEND; |
1166 |
} |
1167 |
|
1168 |
void |
1169 |
db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef) |
1170 |
CODE: |
1171 |
{ |
1172 |
dREQ (REQ_DB_CLOSE); |
1173 |
req->db = db; |
1174 |
req->uint1 = flags; |
1175 |
req->sv1 = (SV *)db->app_private; |
1176 |
REQ_SEND; |
1177 |
ptr_nuke (ST (0)); |
1178 |
} |
1179 |
|
1180 |
void |
1181 |
db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef) |
1182 |
CODE: |
1183 |
{ |
1184 |
dREQ (REQ_DB_COMPACT); |
1185 |
req->db = db; |
1186 |
req->txn = txn; |
1187 |
sv_to_dbt (&req->dbt1, start); |
1188 |
sv_to_dbt (&req->dbt2, stop); |
1189 |
req->uint1 = flags; |
1190 |
REQ_SEND; |
1191 |
} |
1192 |
|
1193 |
void |
1194 |
db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef) |
1195 |
CODE: |
1196 |
{ |
1197 |
dREQ (REQ_DB_SYNC); |
1198 |
req->db = db; |
1199 |
req->uint1 = flags; |
1200 |
REQ_SEND; |
1201 |
} |
1202 |
|
1203 |
void |
1204 |
db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1205 |
CODE: |
1206 |
{ |
1207 |
dREQ (REQ_DB_PUT); |
1208 |
req->db = db; |
1209 |
req->txn = txn; |
1210 |
sv_to_dbt (&req->dbt1, key); |
1211 |
sv_to_dbt (&req->dbt2, data); |
1212 |
req->uint1 = flags; |
1213 |
REQ_SEND; |
1214 |
} |
1215 |
|
1216 |
void |
1217 |
db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1218 |
CODE: |
1219 |
{ |
1220 |
dREQ (REQ_DB_GET); |
1221 |
req->db = db; |
1222 |
req->txn = txn; |
1223 |
req->uint1 = flags; |
1224 |
sv_to_dbt (&req->dbt1, key); |
1225 |
req->dbt3.flags = DB_DBT_MALLOC; |
1226 |
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data); |
1227 |
REQ_SEND; |
1228 |
} |
1229 |
|
1230 |
void |
1231 |
db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1232 |
CODE: |
1233 |
{ |
1234 |
dREQ (REQ_DB_PGET); |
1235 |
req->db = db; |
1236 |
req->txn = txn; |
1237 |
req->uint1 = flags; |
1238 |
sv_to_dbt (&req->dbt1, key); |
1239 |
sv_to_dbt (&req->dbt2, pkey); |
1240 |
req->dbt3.flags = DB_DBT_MALLOC; |
1241 |
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data); |
1242 |
REQ_SEND; |
1243 |
} |
1244 |
|
1245 |
void |
1246 |
db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef) |
1247 |
CODE: |
1248 |
{ |
1249 |
dREQ (REQ_DB_DEL); |
1250 |
req->db = db; |
1251 |
req->txn = txn; |
1252 |
req->uint1 = flags; |
1253 |
sv_to_dbt (&req->dbt1, key); |
1254 |
REQ_SEND; |
1255 |
} |
1256 |
|
1257 |
void |
1258 |
db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef) |
1259 |
CODE: |
1260 |
{ |
1261 |
dREQ (REQ_TXN_COMMIT); |
1262 |
req->txn = txn; |
1263 |
req->uint1 = flags; |
1264 |
REQ_SEND; |
1265 |
ptr_nuke (ST (0)); |
1266 |
} |
1267 |
|
1268 |
void |
1269 |
db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef) |
1270 |
CODE: |
1271 |
{ |
1272 |
dREQ (REQ_TXN_ABORT); |
1273 |
req->txn = txn; |
1274 |
REQ_SEND; |
1275 |
ptr_nuke (ST (0)); |
1276 |
} |
1277 |
|
1278 |
void |
1279 |
db_c_close (DBC *dbc, SV *callback = &PL_sv_undef) |
1280 |
CODE: |
1281 |
{ |
1282 |
dREQ (REQ_C_CLOSE); |
1283 |
req->dbc = dbc; |
1284 |
REQ_SEND; |
1285 |
ptr_nuke (ST (0)); |
1286 |
} |
1287 |
|
1288 |
void |
1289 |
db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef) |
1290 |
CODE: |
1291 |
{ |
1292 |
dREQ (REQ_C_COUNT); |
1293 |
req->dbc = dbc; |
1294 |
req->sv1 = SvREFCNT_inc (count); |
1295 |
REQ_SEND; |
1296 |
} |
1297 |
|
1298 |
void |
1299 |
db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1300 |
CODE: |
1301 |
{ |
1302 |
dREQ (REQ_C_PUT); |
1303 |
req->dbc = dbc; |
1304 |
sv_to_dbt (&req->dbt1, key); |
1305 |
sv_to_dbt (&req->dbt2, data); |
1306 |
req->uint1 = flags; |
1307 |
REQ_SEND; |
1308 |
} |
1309 |
|
1310 |
void |
1311 |
db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1312 |
CODE: |
1313 |
{ |
1314 |
dREQ (REQ_C_GET); |
1315 |
req->dbc = dbc; |
1316 |
req->uint1 = flags; |
1317 |
if ((flags & DB_SET) == DB_SET |
1318 |
|| (flags & DB_SET_RANGE) == DB_SET_RANGE) |
1319 |
sv_to_dbt (&req->dbt1, key); |
1320 |
else |
1321 |
req->dbt1.flags = DB_DBT_MALLOC; |
1322 |
|
1323 |
req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key); |
1324 |
|
1325 |
if ((flags & DB_GET_BOTH) == DB_GET_BOTH |
1326 |
|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE) |
1327 |
sv_to_dbt (&req->dbt3, data); |
1328 |
else |
1329 |
req->dbt3.flags = DB_DBT_MALLOC; |
1330 |
|
1331 |
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data); |
1332 |
REQ_SEND; |
1333 |
} |
1334 |
|
1335 |
void |
1336 |
db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) |
1337 |
CODE: |
1338 |
{ |
1339 |
dREQ (REQ_C_PGET); |
1340 |
req->dbc = dbc; |
1341 |
req->uint1 = flags; |
1342 |
if ((flags & DB_SET) == DB_SET |
1343 |
|| (flags & DB_SET_RANGE) == DB_SET_RANGE) |
1344 |
sv_to_dbt (&req->dbt1, key); |
1345 |
else |
1346 |
req->dbt1.flags = DB_DBT_MALLOC; |
1347 |
|
1348 |
req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key); |
1349 |
|
1350 |
req->dbt2.flags = DB_DBT_MALLOC; |
1351 |
req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey); |
1352 |
|
1353 |
if ((flags & DB_GET_BOTH) == DB_GET_BOTH |
1354 |
|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE) |
1355 |
sv_to_dbt (&req->dbt3, data); |
1356 |
else |
1357 |
req->dbt3.flags = DB_DBT_MALLOC; |
1358 |
|
1359 |
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data); |
1360 |
REQ_SEND; |
1361 |
} |
1362 |
|
1363 |
void |
1364 |
db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef) |
1365 |
CODE: |
1366 |
{ |
1367 |
dREQ (REQ_C_DEL); |
1368 |
req->dbc = dbc; |
1369 |
req->uint1 = flags; |
1370 |
REQ_SEND; |
1371 |
} |
1372 |
|
1373 |
|
1374 |
MODULE = BDB PACKAGE = BDB::Env |
1375 |
|
1376 |
void |
1377 |
DESTROY (DB_ENV_ornull *env) |
1378 |
CODE: |
1379 |
if (env) |
1380 |
env->close (env, 0); |
1381 |
|
1382 |
int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0) |
1383 |
CODE: |
1384 |
RETVAL = env->set_cachesize (env, gbytes, bytes, ncache); |
1385 |
OUTPUT: |
1386 |
RETVAL |
1387 |
|
1388 |
int set_flags (DB_ENV *env, U32 flags, int onoff) |
1389 |
CODE: |
1390 |
RETVAL = env->set_flags (env, flags, onoff); |
1391 |
OUTPUT: |
1392 |
RETVAL |
1393 |
|
1394 |
int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0) |
1395 |
CODE: |
1396 |
RETVAL = env->set_encrypt (env, password, flags); |
1397 |
OUTPUT: |
1398 |
RETVAL |
1399 |
|
1400 |
int set_timeout (DB_ENV *env, NV timeout, U32 flags) |
1401 |
CODE: |
1402 |
RETVAL = env->set_timeout (env, timeout * 1000000, flags); |
1403 |
OUTPUT: |
1404 |
RETVAL |
1405 |
|
1406 |
DB_TXN * |
1407 |
txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0) |
1408 |
CODE: |
1409 |
errno = env->txn_begin (env, parent, &RETVAL, flags); |
1410 |
if (errno) |
1411 |
croak ("DB_ENV->txn_begin: %s", db_strerror (errno)); |
1412 |
OUTPUT: |
1413 |
RETVAL |
1414 |
|
1415 |
MODULE = BDB PACKAGE = BDB::Db |
1416 |
|
1417 |
void |
1418 |
DESTROY (DB_ornull *db) |
1419 |
CODE: |
1420 |
if (db) |
1421 |
{ |
1422 |
SV *env = (SV *)db->app_private; |
1423 |
db->close (db, 0); |
1424 |
SvREFCNT_dec (env); |
1425 |
} |
1426 |
|
1427 |
int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0) |
1428 |
CODE: |
1429 |
RETVAL = db->set_cachesize (db, gbytes, bytes, ncache); |
1430 |
OUTPUT: |
1431 |
RETVAL |
1432 |
|
1433 |
int set_flags (DB *db, U32 flags); |
1434 |
CODE: |
1435 |
RETVAL = db->set_flags (db, flags); |
1436 |
OUTPUT: |
1437 |
RETVAL |
1438 |
|
1439 |
int set_encrypt (DB *db, const char *password, U32 flags) |
1440 |
CODE: |
1441 |
RETVAL = db->set_encrypt (db, password, flags); |
1442 |
OUTPUT: |
1443 |
RETVAL |
1444 |
|
1445 |
int set_lorder (DB *db, int lorder) |
1446 |
CODE: |
1447 |
RETVAL = db->set_lorder (db, lorder); |
1448 |
OUTPUT: |
1449 |
RETVAL |
1450 |
|
1451 |
|
1452 |
int set_bt_minkey (DB *db, U32 minkey) |
1453 |
CODE: |
1454 |
RETVAL = db->set_bt_minkey (db, minkey); |
1455 |
OUTPUT: |
1456 |
RETVAL |
1457 |
|
1458 |
int set_re_delim(DB *db, int delim); |
1459 |
CODE: |
1460 |
RETVAL = db->set_re_delim (db, delim); |
1461 |
OUTPUT: |
1462 |
RETVAL |
1463 |
|
1464 |
int set_re_pad (DB *db, int re_pad) |
1465 |
CODE: |
1466 |
RETVAL = db->set_re_pad (db, re_pad); |
1467 |
OUTPUT: |
1468 |
RETVAL |
1469 |
|
1470 |
int set_re_source (DB *db, char *source) |
1471 |
CODE: |
1472 |
RETVAL = db->set_re_source (db, source); |
1473 |
OUTPUT: |
1474 |
RETVAL |
1475 |
|
1476 |
int set_re_len (DB *db, U32 re_len) |
1477 |
CODE: |
1478 |
RETVAL = db->set_re_len (db, re_len); |
1479 |
OUTPUT: |
1480 |
RETVAL |
1481 |
|
1482 |
int set_h_ffactor (DB *db, U32 h_ffactor) |
1483 |
CODE: |
1484 |
RETVAL = db->set_h_ffactor (db, h_ffactor); |
1485 |
OUTPUT: |
1486 |
RETVAL |
1487 |
|
1488 |
int set_h_nelem (DB *db, U32 h_nelem) |
1489 |
CODE: |
1490 |
RETVAL = db->set_h_nelem (db, h_nelem); |
1491 |
OUTPUT: |
1492 |
RETVAL |
1493 |
|
1494 |
int set_q_extentsize (DB *db, U32 extentsize) |
1495 |
CODE: |
1496 |
RETVAL = db->set_q_extentsize (db, extentsize); |
1497 |
OUTPUT: |
1498 |
RETVAL |
1499 |
|
1500 |
DBC * |
1501 |
cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0) |
1502 |
CODE: |
1503 |
errno = db->cursor (db, txn, &RETVAL, flags); |
1504 |
if (errno) |
1505 |
croak ("DB->cursor: %s", db_strerror (errno)); |
1506 |
OUTPUT: |
1507 |
RETVAL |
1508 |
|
1509 |
|
1510 |
MODULE = BDB PACKAGE = BDB::Txn |
1511 |
|
1512 |
void |
1513 |
DESTROY (DB_TXN_ornull *txn) |
1514 |
CODE: |
1515 |
if (txn) |
1516 |
txn->abort (txn); |
1517 |
|
1518 |
int set_timeout (DB_TXN *txn, NV timeout, U32 flags) |
1519 |
CODE: |
1520 |
RETVAL = txn->set_timeout (txn, timeout * 1000000, flags); |
1521 |
OUTPUT: |
1522 |
RETVAL |
1523 |
|
1524 |
|
1525 |
MODULE = BDB PACKAGE = BDB::Cursor |
1526 |
|
1527 |
void |
1528 |
DESTROY (DBC_ornull *dbc) |
1529 |
CODE: |
1530 |
if (dbc) |
1531 |
dbc->c_close (dbc); |
1532 |
|