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Comparing BDB/BDB.xs (file contents):
Revision 1.2 by root, Mon Feb 5 20:21:38 2007 UTC vs.
Revision 1.16 by root, Mon Aug 13 12:01:45 2007 UTC

1	/* solaris */	1	#include "xthread.h"
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		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
36	*/	42	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64	44
39	# define WORDACCESS_UNSAFE 0	45	typedef SV SV8; /* byte-sv, used for argument-checking */
40	# else	46	typedef char *octetstring;
41	# define WORDACCESS_UNSAFE 1	47
42	# endif	48	static SV *prepare_cb;
		49
		50	#if DB_VERSION_MINOR >= 6
		51	# define c_close close
		52	# define c_count count
		53	# define c_del del
		54	# define c_dup dup
		55	# define c_get get
		56	# define c_pget pget
		57	# define c_put put
43	#endif	58	#endif
44		59
45	typedef SV SV8; /* byte-sv, used for argument-checking */	60	static void
		61	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		62	{
		63	printf ("err[%s]\n", msg);
		64	}
46		65
		66	static void
		67	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		68	{
		69	printf ("msg[%s]\n", msg);
		70	}
		71
		72	static char *
		73	strdup_ornull (const char *s)
		74	{
		75	return s ? strdup (s) : 0;
		76	}
		77
		78	static void
		79	sv_to_dbt (DBT *dbt, SV *sv)
		80	{
		81	STRLEN len;
		82	char *data = SvPVbyte (sv, len);
		83
		84	dbt->data = malloc (len);
		85	memcpy (dbt->data, data, len);
		86	dbt->size = len;
		87	dbt->flags = DB_DBT_REALLOC;
		88	}
		89
		90	static void
		91	dbt_to_sv (SV *sv, DBT *dbt)
		92	{
		93	if (sv)
		94	{
		95	SvREADONLY_off (sv);
		96	sv_setpvn_mg (sv, dbt->data, dbt->size);
		97	SvREFCNT_dec (sv);
		98	}
		99
		100	free (dbt->data);
		101	}
		102
47	enum	103	enum {
48	{
49	REQ_QUIT,	104	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	105	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	106	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		107	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
		108	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		109	REQ_TXN_COMMIT, REQ_TXN_ABORT,
		110	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		111	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	112	};
53		113
54	typedef struct aio_cb	114	typedef struct aio_cb
55	{	115	{
56	struct aio_cb *volatile next;	116	struct aio_cb *volatile next;
57	SV *callback;	117	SV *callback;
58	int type, pri, errorno;	118	int type, pri, result;
59		119
60	DB_ENV *env;	120	DB_ENV *env;
61	DB *db;	121	DB *db;
62	DB_TXN *txn;	122	DB_TXN *txn;
63	DBC *cursor;	123	DBC *dbc;
		124
		125	UV uv1;
64	int int1, int2;	126	int int1, int2;
65	U32 uint1, uint2;	127	U32 uint1, uint2;
66	char *buf1, *buf2;	128	char *buf1, *buf2;
		129	SV *sv1, *sv2, *sv3;
		130
		131	DBT dbt1, dbt2, dbt3;
		132	DB_KEY_RANGE key_range;
		133	DB_SEQUENCE *seq;
		134	db_seq_t seq_t;
67	} aio_cb;	135	} aio_cb;
68		136
69	typedef aio_cb *aio_req;	137	typedef aio_cb *aio_req;
70		138
71	enum {	139	enum {
…		…
91		159
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	160	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		161
94	static unsigned int started, idle, wanted;	162	static unsigned int started, idle, wanted;
95		163
96	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
97	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
98	#else
99	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
100	#endif
101
102	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
103	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104
105	/* worker threads management */	164	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	165	static mutex_t wrklock = X_MUTEX_INIT;
107		166
108	typedef struct worker {	167	typedef struct worker {
109	/* locked by wrklock */	168	/* locked by wrklock */
110	struct worker *prev, *next;	169	struct worker *prev, *next;
111		170
112	pthread_t tid;	171	thread_t tid;
113		172
114	/* locked by reslock, reqlock or wrklock */	173	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	174	aio_req req; /* currently processed request */
116	void *dbuf;	175	void *dbuf;
117	DIR *dirp;	176	DIR *dirp;
…		…
132	}	191	}
133		192
134	static volatile unsigned int nreqs, nready, npending;	193	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	194	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	195	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	196	static int respipe [2], respipe_osf [2];
138		197
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	198	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	199	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	200	static cond_t reqwait = X_COND_INIT;
142		201
143	#if WORDACCESS_UNSAFE	202	#if WORDACCESS_UNSAFE
144		203
145	static unsigned int get_nready ()	204	static unsigned int get_nready ()
146	{	205	{
147	unsigned int retval;	206	unsigned int retval;
148		207
149	LOCK (reqlock);	208	X_LOCK (reqlock);
150	retval = nready;	209	retval = nready;
151	UNLOCK (reqlock);	210	X_UNLOCK (reqlock);
152		211
153	return retval;	212	return retval;
154	}	213	}
155		214
156	static unsigned int get_npending ()	215	static unsigned int get_npending ()
157	{	216	{
158	unsigned int retval;	217	unsigned int retval;
159		218
160	LOCK (reslock);	219	X_LOCK (reslock);
161	retval = npending;	220	retval = npending;
162	UNLOCK (reslock);	221	X_UNLOCK (reslock);
163		222
164	return retval;	223	return retval;
165	}	224	}
166		225
167	static unsigned int get_nthreads ()	226	static unsigned int get_nthreads ()
168	{	227	{
169	unsigned int retval;	228	unsigned int retval;
170		229
171	LOCK (wrklock);	230	X_LOCK (wrklock);
172	retval = started;	231	retval = started;
173	UNLOCK (wrklock);	232	X_UNLOCK (wrklock);
174		233
175	return retval;	234	return retval;
176	}	235	}
177		236
178	#else	237	#else
…		…
248	if (SvOK (req->callback))	307	if (SvOK (req->callback))
249	{	308	{
250	ENTER;	309	ENTER;
251	SAVETMPS;	310	SAVETMPS;
252	PUSHMARK (SP);	311	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		312
255	switch (req->type)	313	switch (req->type)
256	{	314	{
		315	case REQ_DB_CLOSE:
		316	SvREFCNT_dec (req->sv1);
		317	break;
		318
		319	case REQ_DB_GET:
		320	case REQ_DB_PGET:
		321	dbt_to_sv (req->sv3, &req->dbt3);
		322	break;
		323
		324	case REQ_C_GET:
		325	case REQ_C_PGET:
		326	dbt_to_sv (req->sv1, &req->dbt1);
		327	dbt_to_sv (req->sv2, &req->dbt2);
		328	dbt_to_sv (req->sv3, &req->dbt3);
		329	break;
		330
		331	case REQ_DB_KEY_RANGE:
		332	{
		333	AV *av = newAV ();
		334
		335	av_push (av, newSVnv (req->key_range.less));
		336	av_push (av, newSVnv (req->key_range.equal));
		337	av_push (av, newSVnv (req->key_range.greater));
		338
		339	SvREADONLY_off (req->sv1);
		340	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		341	SvREFCNT_dec (req->sv1);
		342	}
		343	break;
		344
		345	case REQ_SEQ_GET:
		346	SvREADONLY_off (req->sv1);
		347
		348	if (sizeof (IV) > 4)
		349	sv_setiv_mg (req->sv1, req->seq_t);
		350	else
		351	sv_setnv_mg (req->sv1, req->seq_t);
		352
		353	SvREFCNT_dec (req->sv1);
		354	break;
257	}	355	}
		356
		357	errno = req->result;
258		358
259	PUTBACK;	359	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	360	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	361	SPAGAIN;
262		362
…		…
272	free (req->buf1);	372	free (req->buf1);
273	free (req->buf2);	373	free (req->buf2);
274	Safefree (req);	374	Safefree (req);
275	}	375	}
276		376
277	static void *aio_proc(void *arg);	377	#ifdef USE_SOCKETS_AS_HANDLES
		378	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		379	#else
		380	# define TO_SOCKET(x) (x)
		381	#endif
		382
		383	static void
		384	create_pipe (int fd[2])
		385	{
		386	#ifdef _WIN32
		387	int arg = 1;
		388	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
		389	|| ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
		390	|| ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
		391	#else
		392	if (pipe (fd)
		393	|| fcntl (fd [0], F_SETFL, O_NONBLOCK)
		394	|| fcntl (fd [1], F_SETFL, O_NONBLOCK))
		395	#endif
		396	croak ("unable to initialize result pipe");
		397
		398	respipe_osf [0] = TO_SOCKET (respipe [0]);
		399	respipe_osf [1] = TO_SOCKET (respipe [1]);
		400	}
		401
		402	X_THREAD_PROC (bdb_proc);
278		403
279	static void start_thread (void)	404	static void start_thread (void)
280	{	405	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	406	worker *wrk = calloc (1, sizeof (worker));
285		407
286	if (!wrk)	408	if (!wrk)
287	croak ("unable to allocate worker thread data");	409	croak ("unable to allocate worker thread data");
288		410
289	pthread_attr_init (&attr);
290	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
291	#ifdef PTHREAD_SCOPE_PROCESS
292	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
293	#endif
294
295	sigfillset (&fullsigset);
296
297	LOCK (wrklock);	411	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	412	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	413	{
302	wrk->prev = &wrk_first;	414	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	415	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	416	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	417	wrk_first.next = wrk;
306	++started;	418	++started;
307	}	419	}
308	else	420	else
309	free (wrk);	421	free (wrk);
310		422
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	423	X_UNLOCK (wrklock);
313	}	424	}
314		425
315	static void maybe_start_thread ()	426	static void maybe_start_thread ()
316	{	427	{
317	if (get_nthreads () >= wanted)	428	if (get_nthreads () >= wanted)
…		…
324	start_thread ();	435	start_thread ();
325	}	436	}
326		437
327	static void req_send (aio_req req)	438	static void req_send (aio_req req)
328	{	439	{
		440	SV *wait_callback = 0;
		441
		442	// synthesize callback if none given
		443	if (!SvOK (req->callback))
		444	{
		445	int count;
		446
		447	dSP;
		448	PUSHMARK (SP);
		449	PUTBACK;
		450	count = call_sv (prepare_cb, G_ARRAY);
		451	SPAGAIN;
		452
		453	if (count != 2)
		454	croak ("prepare callback must return exactly two values\n");
		455
		456	wait_callback = SvREFCNT_inc (POPs);
		457	SvREFCNT_dec (req->callback);
		458	req->callback = SvREFCNT_inc (POPs);
		459	}
		460
329	++nreqs;	461	++nreqs;
330		462
331	LOCK (reqlock);	463	X_LOCK (reqlock);
332	++nready;	464	++nready;
333	reqq_push (&req_queue, req);	465	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	466	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	467	X_UNLOCK (reqlock);
336		468
337	maybe_start_thread ();	469	maybe_start_thread ();
		470
		471	if (wait_callback)
		472	{
		473	dSP;
		474	PUSHMARK (SP);
		475	PUTBACK;
		476	call_sv (wait_callback, G_DISCARD);
		477	SvREFCNT_dec (wait_callback);
		478	}
338	}	479	}
339		480
340	static void end_thread (void)	481	static void end_thread (void)
341	{	482	{
342	aio_req req;	483	aio_req req;
…		…
344	Newz (0, req, 1, aio_cb);	485	Newz (0, req, 1, aio_cb);
345		486
346	req->type = REQ_QUIT;	487	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	488	req->pri = PRI_MAX + PRI_BIAS;
348		489
349	LOCK (reqlock);	490	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	491	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	492	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	493	X_UNLOCK (reqlock);
353		494
354	LOCK (wrklock);	495	X_LOCK (wrklock);
355	--started;	496	--started;
356	UNLOCK (wrklock);	497	X_UNLOCK (wrklock);
357	}	498	}
358		499
359	static void set_max_idle (int nthreads)	500	static void set_max_idle (int nthreads)
360	{	501	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	502	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	503	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	504	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	505	}
365		506
366	static void min_parallel (int nthreads)	507	static void min_parallel (int nthreads)
367	{	508	{
368	if (wanted < nthreads)	509	if (wanted < nthreads)
…		…
383	fd_set rfd;	524	fd_set rfd;
384		525
385	while (nreqs)	526	while (nreqs)
386	{	527	{
387	int size;	528	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	529	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	530	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	531	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		532
392	if (size)	533	if (size)
393	return;	534	return;
394		535
395	maybe_start_thread ();	536	maybe_start_thread ();
396		537
397	FD_ZERO(&rfd);	538	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	539	FD_SET (respipe [0], &rfd);
399		540
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	541	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	542	}
402	}	543	}
403		544
404	static int poll_cb ()	545	static int poll_cb ()
405	{	546	{
…		…
417	{	558	{
418	for (;;)	559	for (;;)
419	{	560	{
420	maybe_start_thread ();	561	maybe_start_thread ();
421		562
422	LOCK (reslock);	563	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	564	req = reqq_shift (&res_queue);
424		565
425	if (req)	566	if (req)
426	{	567	{
427	--npending;	568	--npending;
428		569
429	if (!res_queue.size)	570	if (!res_queue.size)
430	{	571	{
431	/* read any signals sent by the worker threads */	572	/* read any signals sent by the worker threads */
432	char buf [4];	573	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	574	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	575	;
435	}	576	}
436	}	577	}
437		578
438	UNLOCK (reslock);	579	X_UNLOCK (reslock);
439		580
440	if (!req)	581	if (!req)
441	break;	582	break;
442		583
443	--nreqs;	584	--nreqs;
…		…
473	}	614	}
474		615
475	return count;	616	return count;
476	}	617	}
477		618
478	static void create_pipe ()
479	{
480	if (pipe (respipe))
481	croak ("unable to initialize result pipe");
482
483	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
484	croak ("cannot set result pipe to nonblocking mode");
485
486	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
487	croak ("cannot set result pipe to nonblocking mode");
488	}
489
490	/*****************************************************************************/	619	/*****************************************************************************/
491		620
492	static void *aio_proc (void *thr_arg)	621	X_THREAD_PROC (bdb_proc)
493	{	622	{
494	aio_req req;	623	aio_req req;
495	struct timespec ts;	624	struct timespec ts;
496	worker *self = (worker *)thr_arg;	625	worker *self = (worker *)thr_arg;
497		626
498	/* try to distribute timeouts somewhat evenly */	627	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	628	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		629
502	for (;;)	630	for (;;)
503	{	631	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	632	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		633
506	LOCK (reqlock);	634	X_LOCK (reqlock);
507		635
508	for (;;)	636	for (;;)
509	{	637	{
510	self->req = req = reqq_shift (&req_queue);	638	self->req = req = reqq_shift (&req_queue);
511		639
512	if (req)	640	if (req)
513	break;	641	break;
514		642
515	++idle;	643	++idle;
516		644
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	645	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	646	== ETIMEDOUT)
519	{	647	{
520	if (idle > max_idle)	648	if (idle > max_idle)
521	{	649	{
522	--idle;	650	--idle;
523	UNLOCK (reqlock);	651	X_UNLOCK (reqlock);
524	LOCK (wrklock);	652	X_LOCK (wrklock);
525	--started;	653	--started;
526	UNLOCK (wrklock);	654	X_UNLOCK (wrklock);
527	goto quit;	655	goto quit;
528	}	656	}
529		657
530	/* we are allowed to idle, so do so without any timeout */	658	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	659	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	660	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	661	}
534		662
535	--idle;	663	--idle;
536	}	664	}
537		665
538	--nready;	666	--nready;
539		667
540	UNLOCK (reqlock);	668	X_UNLOCK (reqlock);
541		669
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	670	switch (req->type)
545	{	671	{
546	case REQ_QUIT:	672	case REQ_QUIT:
547	goto quit;	673	goto quit;
548		674
		675	case REQ_ENV_OPEN:
		676	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		677	break;
		678
		679	case REQ_ENV_CLOSE:
		680	req->result = req->env->close (req->env, req->uint1);
		681	break;
		682
		683	case REQ_ENV_TXN_CHECKPOINT:
		684	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		685	break;
		686
		687	case REQ_ENV_LOCK_DETECT:
		688	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		689	break;
		690
		691	case REQ_ENV_MEMP_SYNC:
		692	req->result = req->env->memp_sync (req->env, 0);
		693	break;
		694
		695	case REQ_ENV_MEMP_TRICKLE:
		696	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		697	break;
		698
		699	case REQ_DB_OPEN:
		700	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		701	break;
		702
		703	case REQ_DB_CLOSE:
		704	req->result = req->db->close (req->db, req->uint1);
		705	break;
		706
		707	case REQ_DB_COMPACT:
		708	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		709	break;
		710
		711	case REQ_DB_SYNC:
		712	req->result = req->db->sync (req->db, req->uint1);
		713	break;
		714
		715	case REQ_DB_PUT:
		716	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		717	break;
		718
		719	case REQ_DB_GET:
		720	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		721	break;
		722
		723	case REQ_DB_PGET:
		724	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		725	break;
		726
		727	case REQ_DB_DEL:
		728	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		729	break;
		730
		731	case REQ_DB_KEY_RANGE:
		732	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		733	break;
		734
		735	case REQ_TXN_COMMIT:
		736	req->result = req->txn->commit (req->txn, req->uint1);
		737	break;
		738
		739	case REQ_TXN_ABORT:
		740	req->result = req->txn->abort (req->txn);
		741	break;
		742
		743	case REQ_C_CLOSE:
		744	req->result = req->dbc->c_close (req->dbc);
		745	break;
		746
		747	case REQ_C_COUNT:
		748	{
		749	db_recno_t recno;
		750	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		751	req->uv1 = recno;
		752	}
		753	break;
		754
		755	case REQ_C_PUT:
		756	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		757	break;
		758
		759	case REQ_C_GET:
		760	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		761	break;
		762
		763	case REQ_C_PGET:
		764	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		765	break;
		766
		767	case REQ_C_DEL:
		768	req->result = req->dbc->c_del (req->dbc, req->uint1);
		769	break;
		770
		771	case REQ_SEQ_OPEN:
		772	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		773	break;
		774
		775	case REQ_SEQ_CLOSE:
		776	req->result = req->seq->close (req->seq, req->uint1);
		777	break;
		778
		779	case REQ_SEQ_GET:
		780	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		781	break;
		782
		783	case REQ_SEQ_REMOVE:
		784	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		785	break;
		786
549	default:	787	default:
550	//req->result = ENOSYS;	788	req->result = ENOSYS;
551	break;	789	break;
552	}	790	}
553		791
554	//req->errorno = errno;
555
556	LOCK (reslock);	792	X_LOCK (reslock);
557		793
558	++npending;	794	++npending;
559		795
560	if (!reqq_push (&res_queue, req))	796	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	797	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	798	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		799
564	self->req = 0;	800	self->req = 0;
565	worker_clear (self);	801	worker_clear (self);
566		802
567	UNLOCK (reslock);	803	X_UNLOCK (reslock);
568	}	804	}
569		805
570	quit:	806	quit:
571	LOCK (wrklock);	807	X_LOCK (wrklock);
572	worker_free (self);	808	worker_free (self);
573	UNLOCK (wrklock);	809	X_UNLOCK (wrklock);
574		810
575	return 0;	811	return 0;
576	}	812	}
577		813
578	/*****************************************************************************/	814	/*****************************************************************************/
579		815
580	static void atfork_prepare (void)	816	static void atfork_prepare (void)
581	{	817	{
582	LOCK (wrklock);	818	X_LOCK (wrklock);
583	LOCK (reqlock);	819	X_LOCK (reqlock);
584	LOCK (reslock);	820	X_LOCK (reslock);
585	}	821	}
586		822
587	static void atfork_parent (void)	823	static void atfork_parent (void)
588	{	824	{
589	UNLOCK (reslock);	825	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	826	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	827	X_UNLOCK (wrklock);
592	}	828	}
593		829
594	static void atfork_child (void)	830	static void atfork_child (void)
595	{	831	{
596	aio_req prv;	832	aio_req prv;
…		…
616	idle = 0;	852	idle = 0;
617	nreqs = 0;	853	nreqs = 0;
618	nready = 0;	854	nready = 0;
619	npending = 0;	855	npending = 0;
620		856
621	close (respipe [0]);	857	respipe_close (respipe [0]);
622	close (respipe [1]);	858	respipe_close (respipe [1]);
		859
623	create_pipe ();	860	create_pipe (respipe);
624		861
625	atfork_parent ();	862	atfork_parent ();
626	}	863	}
627		864
628	#define dREQ(reqtype) \	865	#define dREQ(reqtype) \
…		…
642	req->pri = req_pri	879	req->pri = req_pri
643		880
644	#define REQ_SEND \	881	#define REQ_SEND \
645	req_send (req)	882	req_send (req)
646		883
647	#define SvPTR(var, arg, type, class) \	884	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	885	if (!SvOK (arg)) \
		886	{ \
		887	if (!nullok) \
		888	croak (# var " must be a " # class " object, not undef"); \
		889	\
649	(var) = 0; \	890	(var) = 0; \
		891	} \
650	else if (sv_derived_from ((arg), # class)) \	892	else if (sv_derived_from ((arg), # class)) \
651	{ \	893	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	894	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	895	(var) = INT2PTR (type, tmp); \
		896	if (!var) \
		897	croak (# var " is not a valid " # class " object anymore"); \
654	} \	898	} \
655	else \	899	else \
656	Perl_croak (# var " is not of type " # type)	900	croak (# var " is not of type " # class); \
657		901	\
		902
		903	static void
		904	ptr_nuke (SV *sv)
		905	{
		906	assert (SvROK (sv));
		907	sv_setiv (SvRV (sv), 0);
		908	}
		909
658	MODULE = BDB PACKAGE = BDB	910	MODULE = BDB PACKAGE = BDB
659		911
660	PROTOTYPES: ENABLE	912	PROTOTYPES: ENABLE
661		913
662	BOOT:	914	BOOT:
…		…
692	const_iv (DSYNC_DB)	944	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)	945	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)	946	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)	947	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	948	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	949	const_iv (NOMMAP)
699	const_iv (NOPANIC)	950	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	951	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	952	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	953	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	954	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	955	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)
706	const_iv (TXN_WRITE_NOSYNC)	956	const_iv (TXN_WRITE_NOSYNC)
		957	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	958	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	959	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	960	const_iv (XA_CREATE)
710	const_iv (BTREE)	961	const_iv (BTREE)
711	const_iv (HASH)	962	const_iv (HASH)
712	const_iv (QUEUE)	963	const_iv (QUEUE)
713	const_iv (RECNO)	964	const_iv (RECNO)
714	const_iv (UNKNOWN)	965	const_iv (UNKNOWN)
715	const_iv (EXCL)	966	const_iv (EXCL)
		967	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	968	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	969	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	970	const_iv (NOSYNC)
719	const_iv (CHKSUM)	971	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	972	const_iv (ENCRYPT)
…		…
725	const_iv (RENUMBER)	977	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	978	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	979	const_iv (INORDER)
728	const_iv (CONSUME)	980	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	981	const_iv (CONSUME_WAIT)
		982	const_iv (GET_BOTH)
		983	const_iv (GET_BOTH_RANGE)
		984	//const_iv (SET_RECNO)
		985	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	986	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	987	const_iv (JOIN_ITEM)
732	const_iv (RMW)	988	const_iv (RMW)
733		989
734	const_iv (NOTFOUND)	990	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	991	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	992	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	993	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	994	const_iv (RUNRECOVERY)
		995	const_iv (OLD_VERSION)
		996	const_iv (REP_HANDLE_DEAD)
		997	const_iv (REP_LOCKOUT)
		998	const_iv (SECONDARY_BAD)
		999
		1000	const_iv (FREE_SPACE)
		1001	const_iv (FREELIST_ONLY)
		1002
		1003	const_iv (APPEND)
		1004	const_iv (NODUPDATA)
		1005	const_iv (NOOVERWRITE)
		1006
		1007	const_iv (TXN_NOWAIT)
		1008	const_iv (TXN_SYNC)
		1009
		1010	const_iv (SET_LOCK_TIMEOUT)
		1011	const_iv (SET_TXN_TIMEOUT)
		1012
		1013	const_iv (JOIN_ITEM)
		1014	const_iv (FIRST)
		1015	const_iv (NEXT)
		1016	const_iv (NEXT_DUP)
		1017	const_iv (NEXT_NODUP)
		1018	const_iv (PREV)
		1019	const_iv (PREV_NODUP)
		1020	const_iv (SET)
		1021	const_iv (SET_RANGE)
		1022	const_iv (LAST)
		1023	const_iv (BEFORE)
		1024	const_iv (AFTER)
		1025	const_iv (CURRENT)
		1026	const_iv (KEYFIRST)
		1027	const_iv (KEYLAST)
		1028	const_iv (NODUPDATA)
		1029
		1030	const_iv (FORCE)
		1031
		1032	const_iv (LOCK_DEFAULT)
		1033	const_iv (LOCK_EXPIRE)
		1034	const_iv (LOCK_MAXLOCKS)
		1035	const_iv (LOCK_MAXWRITE)
		1036	const_iv (LOCK_MINLOCKS)
		1037	const_iv (LOCK_MINWRITE)
		1038	const_iv (LOCK_OLDEST)
		1039	const_iv (LOCK_RANDOM)
		1040	const_iv (LOCK_YOUNGEST)
		1041
		1042	const_iv (SEQ_DEC)
		1043	const_iv (SEQ_INC)
		1044	const_iv (SEQ_WRAP)
		1045
		1046	const_iv (BUFFER_SMALL)
		1047	const_iv (DONOTINDEX)
		1048	const_iv (KEYEMPTY )
		1049	const_iv (KEYEXIST )
		1050	const_iv (LOCK_DEADLOCK)
		1051	const_iv (LOCK_NOTGRANTED)
		1052	const_iv (LOG_BUFFER_FULL)
		1053	const_iv (NOSERVER)
		1054	const_iv (NOSERVER_HOME)
		1055	const_iv (NOSERVER_ID)
		1056	const_iv (NOTFOUND)
		1057	const_iv (OLD_VERSION)
		1058	const_iv (PAGE_NOTFOUND)
		1059	const_iv (REP_DUPMASTER)
		1060	const_iv (REP_HANDLE_DEAD)
		1061	const_iv (REP_HOLDELECTION)
		1062	const_iv (REP_IGNORE)
		1063	const_iv (REP_ISPERM)
		1064	const_iv (REP_JOIN_FAILURE)
		1065	const_iv (REP_LOCKOUT)
		1066	const_iv (REP_NEWMASTER)
		1067	const_iv (REP_NEWSITE)
		1068	const_iv (REP_NOTPERM)
		1069	const_iv (REP_UNAVAIL)
		1070	const_iv (RUNRECOVERY)
		1071	const_iv (SECONDARY_BAD)
		1072	const_iv (VERIFY_BAD)
		1073	const_iv (VERSION_MISMATCH)
		1074
		1075	const_iv (VERB_DEADLOCK)
		1076	const_iv (VERB_RECOVERY)
		1077	const_iv (VERB_REGISTER)
		1078	const_iv (VERB_REPLICATION)
		1079	const_iv (VERB_WAITSFOR)
		1080
		1081	const_iv (VERSION_MAJOR)
		1082	const_iv (VERSION_MINOR)
		1083	const_iv (VERSION_PATCH)
		1084	#if DB_VERSION_MINOR >= 5
		1085	const_iv (MULTIVERSION)
		1086	const_iv (TXN_SNAPSHOT)
		1087	#endif
		1088	#if DB_VERSION_MINOR >= 6
		1089	const_iv (PREV_DUP)
		1090	# if 0
		1091	const_iv (PRIORITY_UNCHANGED)
		1092	const_iv (PRIORITY_VERY_LOW)
		1093	const_iv (PRIORITY_LOW)
		1094	const_iv (PRIORITY_DEFAULT)
		1095	const_iv (PRIORITY_HIGH)
		1096	const_iv (PRIORITY_VERY_HIGH)
		1097	# endif
		1098	#endif
739	};	1099	};
740		1100
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1101	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1102	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1103
744	create_pipe ();	1104	newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1105	newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1106
		1107	create_pipe (respipe);
		1108
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1109	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1110	#ifdef _WIN32
		1111	X_MUTEX_CHECK (wrklock);
		1112	X_MUTEX_CHECK (reslock);
		1113	X_MUTEX_CHECK (reqlock);
		1114
		1115	X_COND_CHECK (reqwait);
		1116	#endif
746	}	1117	}
747		1118
748	void	1119	void
749	max_poll_reqs (int nreqs)	1120	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1121	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1150	max_outstanding = maxreqs;
780	OUTPUT:	1151	OUTPUT:
781	RETVAL	1152	RETVAL
782		1153
783	int	1154	int
784	bdbreq_pri (int pri = 0)	1155	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1156	PROTOTYPE: ;$
786	CODE:	1157	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1158	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1159	if (items > 0)
789	{	1160	{
…		…
793	}	1164	}
794	OUTPUT:	1165	OUTPUT:
795	RETVAL	1166	RETVAL
796		1167
797	void	1168	void
798	bdbreq_nice (int nice = 0)	1169	dbreq_nice (int nice = 0)
799	CODE:	1170	CODE:
800	nice = next_pri - nice;	1171	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1172	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1173	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1174	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1182	poll_wait ();
812	poll_cb ();	1183	poll_cb ();
813	}	1184	}
814		1185
815	int	1186	int
816	poll()	1187	poll ()
817	PROTOTYPE:	1188	PROTOTYPE:
818	CODE:	1189	CODE:
819	poll_wait ();	1190	poll_wait ();
820	RETVAL = poll_cb ();	1191	RETVAL = poll_cb ();
821	OUTPUT:	1192	OUTPUT:
822	RETVAL	1193	RETVAL
823		1194
824	int	1195	int
825	poll_fileno()	1196	poll_fileno ()
826	PROTOTYPE:	1197	PROTOTYPE:
827	CODE:	1198	CODE:
828	RETVAL = respipe [0];	1199	RETVAL = respipe [0];
829	OUTPUT:	1200	OUTPUT:
830	RETVAL	1201	RETVAL
831		1202
832	int	1203	int
833	poll_cb(...)	1204	poll_cb (...)
834	PROTOTYPE:	1205	PROTOTYPE:
835	CODE:	1206	CODE:
836	RETVAL = poll_cb ();	1207	RETVAL = poll_cb ();
837	OUTPUT:	1208	OUTPUT:
838	RETVAL	1209	RETVAL
839		1210
840	void	1211	void
841	poll_wait()	1212	poll_wait ()
842	PROTOTYPE:	1213	PROTOTYPE:
843	CODE:	1214	CODE:
844	poll_wait ();	1215	poll_wait ();
845		1216
846	int	1217	int
847	nreqs()	1218	nreqs ()
848	PROTOTYPE:	1219	PROTOTYPE:
849	CODE:	1220	CODE:
850	RETVAL = nreqs;	1221	RETVAL = nreqs;
851	OUTPUT:	1222	OUTPUT:
852	RETVAL	1223	RETVAL
853		1224
854	int	1225	int
855	nready()	1226	nready ()
856	PROTOTYPE:	1227	PROTOTYPE:
857	CODE:	1228	CODE:
858	RETVAL = get_nready ();	1229	RETVAL = get_nready ();
859	OUTPUT:	1230	OUTPUT:
860	RETVAL	1231	RETVAL
861		1232
862	int	1233	int
863	npending()	1234	npending ()
864	PROTOTYPE:	1235	PROTOTYPE:
865	CODE:	1236	CODE:
866	RETVAL = get_npending ();	1237	RETVAL = get_npending ();
867	OUTPUT:	1238	OUTPUT:
868	RETVAL	1239	RETVAL
869		1240
870	int	1241	int
871	nthreads()	1242	nthreads ()
872	PROTOTYPE:	1243	PROTOTYPE:
873	CODE:	1244	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1245	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1246	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1247	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1248	OUTPUT:
878	RETVAL	1249	RETVAL
879		1250
		1251	void
		1252	set_sync_prepare (SV *cb)
		1253	PROTOTYPE: &
		1254	CODE:
		1255	SvREFCNT_dec (prepare_cb);
		1256	prepare_cb = newSVsv (cb);
		1257
		1258	char *
		1259	strerror (int errorno = errno)
		1260	PROTOTYPE: ;$
		1261	CODE:
		1262	RETVAL = db_strerror (errorno);
		1263	OUTPUT:
		1264	RETVAL
		1265
880	DB_ENV *	1266	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1267	db_env_create (U32 env_flags = 0)
882	CODE:	1268	CODE:
883	{	1269	{
884	int err = db_env_create (&RETVAL, env_flags);	1270	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1271	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1272	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1273
		1274	if (0)
		1275	{
		1276	RETVAL->set_errcall (RETVAL, debug_errcall);
		1277	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1278	}
		1279	}
		1280	OUTPUT:
		1281	RETVAL
		1282
889	void	1283	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1284	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1285	CODE:
892	{	1286	{
893	dREQ (REQ_ENV_OPEN);	1287	dREQ (REQ_ENV_OPEN);
		1288
		1289	env->set_thread_count (env, wanted + 2);
		1290
894	req->env = env;	1291	req->env = env;
895	req->uint1 = open_flags;	1292	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1293	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1294	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1295	REQ_SEND;
899	}	1296	}
900		1297
901	void	1298	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1299	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1300	CODE:
904	{	1301	{
905	dREQ (REQ_ENV_CLOSE);	1302	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1303	req->env = env;
907	req->uint1 = flags;	1304	req->uint1 = flags;
908	REQ_SEND;	1305	REQ_SEND;
		1306	ptr_nuke (ST (0));
909	}	1307	}
		1308
		1309	void
		1310	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1311	CODE:
		1312	{
		1313	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1314	req->env = env;
		1315	req->uint1 = kbyte;
		1316	req->int1 = min;
		1317	req->uint2 = flags;
		1318	REQ_SEND;
		1319	}
		1320
		1321	void
		1322	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1323	CODE:
		1324	{
		1325	dREQ (REQ_ENV_LOCK_DETECT);
		1326	req->env = env;
		1327	req->uint1 = flags;
		1328	req->uint2 = atype;
		1329	REQ_SEND;
		1330	}
		1331
		1332	void
		1333	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1334	CODE:
		1335	{
		1336	dREQ (REQ_ENV_MEMP_SYNC);
		1337	req->env = env;
		1338	REQ_SEND;
		1339	}
		1340
		1341	void
		1342	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1343	CODE:
		1344	{
		1345	dREQ (REQ_ENV_MEMP_TRICKLE);
		1346	req->env = env;
		1347	req->int1 = percent;
		1348	REQ_SEND;
		1349	}
		1350
910		1351
911	DB *	1352	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1353	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1354	CODE:
914	{	1355	{
915	int err = db_create (&RETVAL, env, flags);	1356	errno = db_create (&RETVAL, env, flags);
916	if (err)	1357	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1358	croak ("db_create: %s", db_strerror (errno));
918	}
919		1359
		1360	if (RETVAL)
		1361	RETVAL->app_private = (void *)newSVsv (ST (0));
		1362	}
		1363	OUTPUT:
		1364	RETVAL
		1365
920	void	1366	void
921	bdb_db_open (DB *db, DB_TXN *txnid, const char *file, const char *database, int type, U32 flags, int mode, SV *callback = 0)	1367	db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
922	CODE:	1368	CODE:
923	{	1369	{
924	dREQ (REQ_DB_OPEN);	1370	dREQ (REQ_DB_OPEN);
925	req->db = db;	1371	req->db = db;
926	req->txn = txnid;	1372	req->txn = txnid;
927	req->buf1 = strdup (file);	1373	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1374	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1375	req->int1 = type;
930	req->uint1 = flags;	1376	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1377	req->int2 = mode;
932	REQ_SEND;	1378	REQ_SEND;
933	}	1379	}
934		1380
935	void	1381	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1382	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1383	CODE:
938	{	1384	{
939	dREQ (REQ_DB_CLOSE);	1385	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1386	req->db = db;
941	req->uint1 = flags;	1387	req->uint1 = flags;
		1388	req->sv1 = (SV *)db->app_private;
		1389	REQ_SEND;
		1390	ptr_nuke (ST (0));
		1391	}
		1392
		1393	void
		1394	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)
		1395	CODE:
		1396	{
		1397	dREQ (REQ_DB_COMPACT);
		1398	req->db = db;
		1399	req->txn = txn;
		1400	sv_to_dbt (&req->dbt1, start);
		1401	sv_to_dbt (&req->dbt2, stop);
		1402	req->uint1 = flags;
		1403	REQ_SEND;
		1404	}
		1405
		1406	void
		1407	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1408	CODE:
		1409	{
		1410	dREQ (REQ_DB_SYNC);
		1411	req->db = db;
		1412	req->uint1 = flags;
		1413	REQ_SEND;
		1414	}
		1415
		1416	void
		1417	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1418	CODE:
		1419	{
		1420	dREQ (REQ_DB_KEY_RANGE);
		1421	req->db = db;
		1422	req->txn = txn;
		1423	sv_to_dbt (&req->dbt1, key);
		1424	req->uint1 = flags;
		1425	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1426	REQ_SEND;
		1427	}
		1428
		1429	void
		1430	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1431	CODE:
		1432	{
		1433	dREQ (REQ_DB_PUT);
		1434	req->db = db;
		1435	req->txn = txn;
		1436	sv_to_dbt (&req->dbt1, key);
		1437	sv_to_dbt (&req->dbt2, data);
		1438	req->uint1 = flags;
		1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1444	CODE:
		1445	{
		1446	dREQ (REQ_DB_GET);
		1447	req->db = db;
		1448	req->txn = txn;
		1449	req->uint1 = flags;
		1450	sv_to_dbt (&req->dbt1, key);
		1451	req->dbt3.flags = DB_DBT_MALLOC;
		1452	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1453	REQ_SEND;
		1454	}
		1455
		1456	void
		1457	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1458	CODE:
		1459	{
		1460	dREQ (REQ_DB_PGET);
		1461	req->db = db;
		1462	req->txn = txn;
		1463	req->uint1 = flags;
		1464	sv_to_dbt (&req->dbt1, key);
		1465	sv_to_dbt (&req->dbt2, pkey);
		1466	req->dbt3.flags = DB_DBT_MALLOC;
		1467	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1468	REQ_SEND;
		1469	}
		1470
		1471	void
		1472	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1473	CODE:
		1474	{
		1475	dREQ (REQ_DB_DEL);
		1476	req->db = db;
		1477	req->txn = txn;
		1478	req->uint1 = flags;
		1479	sv_to_dbt (&req->dbt1, key);
		1480	REQ_SEND;
		1481	}
		1482
		1483	void
		1484	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1485	CODE:
		1486	{
		1487	dREQ (REQ_TXN_COMMIT);
		1488	req->txn = txn;
		1489	req->uint1 = flags;
		1490	REQ_SEND;
		1491	ptr_nuke (ST (0));
		1492	}
		1493
		1494	void
		1495	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1496	CODE:
		1497	{
		1498	dREQ (REQ_TXN_ABORT);
		1499	req->txn = txn;
		1500	REQ_SEND;
		1501	ptr_nuke (ST (0));
		1502	}
		1503
		1504	void
		1505	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1506	CODE:
		1507	{
		1508	dREQ (REQ_C_CLOSE);
		1509	req->dbc = dbc;
		1510	REQ_SEND;
		1511	ptr_nuke (ST (0));
		1512	}
		1513
		1514	void
		1515	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1516	CODE:
		1517	{
		1518	dREQ (REQ_C_COUNT);
		1519	req->dbc = dbc;
		1520	req->sv1 = SvREFCNT_inc (count);
		1521	REQ_SEND;
		1522	}
		1523
		1524	void
		1525	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1526	CODE:
		1527	{
		1528	dREQ (REQ_C_PUT);
		1529	req->dbc = dbc;
		1530	sv_to_dbt (&req->dbt1, key);
		1531	sv_to_dbt (&req->dbt2, data);
		1532	req->uint1 = flags;
		1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1538	CODE:
		1539	{
		1540	dREQ (REQ_C_GET);
		1541	req->dbc = dbc;
		1542	req->uint1 = flags;
		1543	if ((flags & DB_SET) == DB_SET
		1544	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1545	sv_to_dbt (&req->dbt1, key);
		1546	else
		1547	req->dbt1.flags = DB_DBT_MALLOC;
		1548
		1549	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1550
		1551	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1552	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1553	sv_to_dbt (&req->dbt3, data);
		1554	else
		1555	req->dbt3.flags = DB_DBT_MALLOC;
		1556
		1557	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1558	REQ_SEND;
		1559	}
		1560
		1561	void
		1562	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1563	CODE:
		1564	{
		1565	dREQ (REQ_C_PGET);
		1566	req->dbc = dbc;
		1567	req->uint1 = flags;
		1568	if ((flags & DB_SET) == DB_SET
		1569	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1570	sv_to_dbt (&req->dbt1, key);
		1571	else
		1572	req->dbt1.flags = DB_DBT_MALLOC;
		1573
		1574	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1575
		1576	req->dbt2.flags = DB_DBT_MALLOC;
		1577	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1578
		1579	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1580	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1581	sv_to_dbt (&req->dbt3, data);
		1582	else
		1583	req->dbt3.flags = DB_DBT_MALLOC;
		1584
		1585	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1586	REQ_SEND;
		1587	}
		1588
		1589	void
		1590	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1591	CODE:
		1592	{
		1593	dREQ (REQ_C_DEL);
		1594	req->dbc = dbc;
		1595	req->uint1 = flags;
		1596	REQ_SEND;
		1597	}
		1598
		1599
		1600	void
		1601	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1602	CODE:
		1603	{
		1604	dREQ (REQ_SEQ_OPEN);
		1605	req->seq = seq;
		1606	req->txn = txnid;
		1607	req->uint1 = flags | DB_THREAD;
		1608	sv_to_dbt (&req->dbt1, key);
		1609	REQ_SEND;
		1610	}
		1611
		1612	void
		1613	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1614	CODE:
		1615	{
		1616	dREQ (REQ_SEQ_CLOSE);
		1617	req->seq = seq;
		1618	req->uint1 = flags;
		1619	REQ_SEND;
		1620	ptr_nuke (ST (0));
		1621	}
		1622
		1623	void
		1624	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
		1625	CODE:
		1626	{
		1627	dREQ (REQ_SEQ_GET);
		1628	req->seq = seq;
		1629	req->txn = txnid;
		1630	req->int1 = delta;
		1631	req->uint1 = flags;
		1632	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1633	REQ_SEND;
		1634	}
		1635
		1636	void
		1637	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1638	CODE:
		1639	{
		1640	dREQ (REQ_SEQ_REMOVE);
		1641	req->seq = seq;
		1642	req->txn = txnid;
		1643	req->uint1 = flags;
942	REQ_SEND;	1644	REQ_SEND;
943	}	1645	}
944		1646
945		1647
946	MODULE = BDB PACKAGE = BDB::Env	1648	MODULE = BDB PACKAGE = BDB::Env
947		1649
		1650	void
		1651	DESTROY (DB_ENV_ornull *env)
		1652	CODE:
		1653	if (env)
		1654	env->close (env, 0);
		1655
		1656	int set_data_dir (DB_ENV *env, const char *dir)
		1657	CODE:
		1658	RETVAL = env->set_data_dir (env, dir);
		1659	OUTPUT:
		1660	RETVAL
		1661
		1662	int set_tmp_dir (DB_ENV *env, const char *dir)
		1663	CODE:
		1664	RETVAL = env->set_tmp_dir (env, dir);
		1665	OUTPUT:
		1666	RETVAL
		1667
		1668	int set_lg_dir (DB_ENV *env, const char *dir)
		1669	CODE:
		1670	RETVAL = env->set_lg_dir (env, dir);
		1671	OUTPUT:
		1672	RETVAL
		1673
		1674	int set_shm_key (DB_ENV *env, long shm_key)
		1675	CODE:
		1676	RETVAL = env->set_shm_key (env, shm_key);
		1677	OUTPUT:
		1678	RETVAL
		1679
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1680	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1681	CODE:
		1682	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1683	OUTPUT:
		1684	RETVAL
949		1685
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1686	int set_flags (DB_ENV *env, U32 flags, int onoff)
		1687	CODE:
		1688	RETVAL = env->set_flags (env, flags, onoff);
		1689	OUTPUT:
		1690	RETVAL
951		1691
		1692	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1693	CODE:
		1694	env->set_errfile (env, errfile);
		1695
		1696	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1697	CODE:
		1698	env->set_msgfile (env, msgfile);
		1699
		1700	int set_verbose (DB_ENV *env, U32 which, int onoff = 1)
		1701	CODE:
		1702	RETVAL = env->set_verbose (env, which, onoff);
		1703	OUTPUT:
		1704	RETVAL
		1705
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1706	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1707	CODE:
		1708	RETVAL = env->set_encrypt (env, password, flags);
		1709	OUTPUT:
		1710	RETVAL
		1711
		1712	int set_timeout (DB_ENV *env, NV timeout, U32 flags)
		1713	CODE:
		1714	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1715	OUTPUT:
		1716	RETVAL
		1717
		1718	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1719	CODE:
		1720	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1721	OUTPUT:
		1722	RETVAL
		1723
		1724	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1725	CODE:
		1726	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1727	OUTPUT:
		1728	RETVAL
		1729
		1730	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1731	CODE:
		1732	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1733	OUTPUT:
		1734	RETVAL
		1735
		1736	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1737	CODE:
		1738	RETVAL = env->set_lk_detect (env, detect);
		1739	OUTPUT:
		1740	RETVAL
		1741
		1742	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1743	CODE:
		1744	RETVAL = env->set_lk_max_lockers (env, max);
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int set_lk_max_locks (DB_ENV *env, U32 max)
		1749	CODE:
		1750	RETVAL = env->set_lk_max_locks (env, max);
		1751	OUTPUT:
		1752	RETVAL
		1753
		1754	int set_lk_max_objects (DB_ENV *env, U32 max)
		1755	CODE:
		1756	RETVAL = env->set_lk_max_objects (env, max);
		1757	OUTPUT:
		1758	RETVAL
		1759
		1760	int set_lg_bsize (DB_ENV *env, U32 max)
		1761	CODE:
		1762	RETVAL = env->set_lg_bsize (env, max);
		1763	OUTPUT:
		1764	RETVAL
		1765
		1766	int set_lg_max (DB_ENV *env, U32 max)
		1767	CODE:
		1768	RETVAL = env->set_lg_max (env, max);
		1769	OUTPUT:
		1770	RETVAL
		1771
		1772	DB_TXN *
		1773	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1774	CODE:
		1775	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1776	if (errno)
		1777	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1778	OUTPUT:
		1779	RETVAL
953		1780
954	MODULE = BDB PACKAGE = BDB::Db	1781	MODULE = BDB PACKAGE = BDB::Db
955		1782
		1783	void
		1784	DESTROY (DB_ornull *db)
		1785	CODE:
		1786	if (db)
		1787	{
		1788	SV *env = (SV *)db->app_private;
		1789	db->close (db, 0);
		1790	SvREFCNT_dec (env);
		1791	}
		1792
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1793	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1794	CODE:
		1795	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1796	OUTPUT:
		1797	RETVAL
957		1798
958	int set_flags (DB *env, U32 flags, int onoff)	1799	int set_flags (DB *db, U32 flags)
		1800	CODE:
		1801	RETVAL = db->set_flags (db, flags);
		1802	OUTPUT:
		1803	RETVAL
959		1804
960	int set_encrypt (DB *db, const char *password, U32 flags)	1805	int set_encrypt (DB *db, const char *password, U32 flags)
		1806	CODE:
		1807	RETVAL = db->set_encrypt (db, password, flags);
		1808	OUTPUT:
		1809	RETVAL
961		1810
962	int set_lorder (DB *db, int lorder)	1811	int set_lorder (DB *db, int lorder)
963		1812	CODE:
		1813	RETVAL = db->set_lorder (db, lorder);
		1814	OUTPUT:
		1815	RETVAL
964		1816
965	int set_bt_minkey (DB *db, U32 minkey)	1817	int set_bt_minkey (DB *db, U32 minkey)
		1818	CODE:
		1819	RETVAL = db->set_bt_minkey (db, minkey);
		1820	OUTPUT:
		1821	RETVAL
966		1822
967	int set_re_delim(DB *db, int delim);	1823	int set_re_delim (DB *db, int delim)
		1824	CODE:
		1825	RETVAL = db->set_re_delim (db, delim);
		1826	OUTPUT:
		1827	RETVAL
968		1828
969	int set_re_pad (DB *db, int re_pad)	1829	int set_re_pad (DB *db, int re_pad)
		1830	CODE:
		1831	RETVAL = db->set_re_pad (db, re_pad);
		1832	OUTPUT:
		1833	RETVAL
970		1834
971	int set_re_source (DB *db, char *source)	1835	int set_re_source (DB *db, char *source)
		1836	CODE:
		1837	RETVAL = db->set_re_source (db, source);
		1838	OUTPUT:
		1839	RETVAL
972		1840
973	int set_re_len (DB *db, U32 re_len)	1841	int set_re_len (DB *db, U32 re_len)
		1842	CODE:
		1843	RETVAL = db->set_re_len (db, re_len);
		1844	OUTPUT:
		1845	RETVAL
974		1846
975	int set_h_ffactor (DB *db, U32 h_ffactor)	1847	int set_h_ffactor (DB *db, U32 h_ffactor)
		1848	CODE:
		1849	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1850	OUTPUT:
		1851	RETVAL
976		1852
977	int set_h_nelem (DB *db, U32 h_nelem)	1853	int set_h_nelem (DB *db, U32 h_nelem)
		1854	CODE:
		1855	RETVAL = db->set_h_nelem (db, h_nelem);
		1856	OUTPUT:
		1857	RETVAL
978		1858
979	int set_q_extentsize (DB *db, U32 extentsize)	1859	int set_q_extentsize (DB *db, U32 extentsize)
		1860	CODE:
		1861	RETVAL = db->set_q_extentsize (db, extentsize);
		1862	OUTPUT:
		1863	RETVAL
980		1864
		1865	DBC *
		1866	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		1867	CODE:
		1868	errno = db->cursor (db, txn, &RETVAL, flags);
		1869	if (errno)
		1870	croak ("DB->cursor: %s", db_strerror (errno));
		1871	OUTPUT:
		1872	RETVAL
981		1873
		1874	DB_SEQUENCE *
		1875	sequence (DB *db, U32 flags = 0)
		1876	CODE:
		1877	{
		1878	errno = db_sequence_create (&RETVAL, db, flags);
		1879	if (errno)
		1880	croak ("db_sequence_create: %s", db_strerror (errno));
		1881	}
		1882	OUTPUT:
		1883	RETVAL
		1884
		1885
		1886	MODULE = BDB PACKAGE = BDB::Txn
		1887
		1888	void
		1889	DESTROY (DB_TXN_ornull *txn)
		1890	CODE:
		1891	if (txn)
		1892	txn->abort (txn);
		1893
		1894	int set_timeout (DB_TXN *txn, NV timeout, U32 flags)
		1895	CODE:
		1896	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		1897	OUTPUT:
		1898	RETVAL
		1899
		1900
		1901	MODULE = BDB PACKAGE = BDB::Cursor
		1902
		1903	void
		1904	DESTROY (DBC_ornull *dbc)
		1905	CODE:
		1906	if (dbc)
		1907	dbc->c_close (dbc);
		1908
		1909	MODULE = BDB PACKAGE = BDB::Sequence
		1910
		1911	void
		1912	DESTROY (DB_SEQUENCE_ornull *seq)
		1913	CODE:
		1914	if (seq)
		1915	seq->close (seq, 0);
		1916
		1917	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		1918	CODE:
		1919	RETVAL = seq->initial_value (seq, value);
		1920	OUTPUT:
		1921	RETVAL
		1922
		1923	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		1924	CODE:
		1925	RETVAL = seq->set_cachesize (seq, size);
		1926	OUTPUT:
		1927	RETVAL
		1928
		1929	int set_flags (DB_SEQUENCE *seq, U32 flags)
		1930	CODE:
		1931	RETVAL = seq->set_flags (seq, flags);
		1932	OUTPUT:
		1933	RETVAL
		1934
		1935	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		1936	CODE:
		1937	RETVAL = seq->set_range (seq, min, max);
		1938	OUTPUT:
		1939	RETVAL
		1940

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