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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 1.12 by root, Sun Jul 8 09:16:19 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
17	#include <pthread.h>
18		8
19	#include <stddef.h>	9	#include <stddef.h>
20	#include <stdlib.h>	10	#include <stdlib.h>
21	#include <errno.h>	11	#include <errno.h>
22	#include <sys/time.h>	12	#include <sys/time.h>
…		…
25	#include <unistd.h>	15	#include <unistd.h>
26	#include <fcntl.h>	16	#include <fcntl.h>
27		17
28	#include <db.h>	18	#include <db.h>
29		19
		20	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 5)
		21	# error you need Berkeley DB 4.5 or newer installed
		22	#endif
		23
30	/* number of seconds after which idle threads exit */	24	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	25	#define IDLE_TIMEOUT 10
32		26
33	/* wether word reads are potentially non-atomic.	27	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	28	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	29	typedef DBC DBC_ornull;
36	*/	30	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	31	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64
39	# define WORDACCESS_UNSAFE 0
40	# else
41	# define WORDACCESS_UNSAFE 1
42	# endif
43	#endif
44		32
45	typedef SV SV8; /* byte-sv, used for argument-checking */	33	typedef SV SV8; /* byte-sv, used for argument-checking */
		34	typedef char *octetstring;
46		35
		36	static SV *prepare_cb;
		37
		38	static inline char *
		39	strdup_ornull (const char *s)
		40	{
		41	return s ? strdup (s) : 0;
		42	}
		43
		44	static inline void
		45	sv_to_dbt (DBT *dbt, SV *sv)
		46	{
		47	STRLEN len;
		48	char *data = SvPVbyte (sv, len);
		49
		50	dbt->data = malloc (len);
		51	memcpy (dbt->data, data, len);
		52	dbt->size = len;
		53	dbt->flags = DB_DBT_REALLOC;
		54	}
		55
		56	static inline void
		57	dbt_to_sv (SV *sv, DBT *dbt)
		58	{
		59	if (sv)
		60	{
		61	SvREADONLY_off (sv);
		62	sv_setpvn_mg (sv, dbt->data, dbt->size);
		63	SvREFCNT_dec (sv);
		64	}
		65
		66	free (dbt->data);
		67	}
		68
47	enum	69	enum {
48	{
49	REQ_QUIT,	70	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	71	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	72	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		73	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
		74	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		75	REQ_TXN_COMMIT, REQ_TXN_ABORT,
		76	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		77	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	78	};
53		79
54	typedef struct aio_cb	80	typedef struct aio_cb
55	{	81	{
56	struct aio_cb *volatile next;	82	struct aio_cb *volatile next;
57	SV *callback;	83	SV *callback;
58	int type, pri, errorno;	84	int type, pri, result;
59		85
60	DB_ENV *env;	86	DB_ENV *env;
61	DB *db;	87	DB *db;
62	DB_TXN *txn;	88	DB_TXN *txn;
63	DBC *cursor;	89	DBC *dbc;
		90
		91	UV uv1;
64	int int1, int2;	92	int int1, int2;
65	U32 uint1, uint2;	93	U32 uint1, uint2;
66	char *buf1, *buf2;	94	char *buf1, *buf2;
		95	SV *sv1, *sv2, *sv3;
		96
		97	DBT dbt1, dbt2, dbt3;
		98	DB_KEY_RANGE key_range;
		99	DB_SEQUENCE *seq;
		100	db_seq_t seq_t;
67	} aio_cb;	101	} aio_cb;
68		102
69	typedef aio_cb *aio_req;	103	typedef aio_cb *aio_req;
70		104
71	enum {	105	enum {
…		…
91		125
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	126	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		127
94	static unsigned int started, idle, wanted;	128	static unsigned int started, idle, wanted;
95		129
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 */	130	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	131	static mutex_t wrklock = X_MUTEX_INIT;
107		132
108	typedef struct worker {	133	typedef struct worker {
109	/* locked by wrklock */	134	/* locked by wrklock */
110	struct worker *prev, *next;	135	struct worker *prev, *next;
111		136
112	pthread_t tid;	137	thread_t tid;
113		138
114	/* locked by reslock, reqlock or wrklock */	139	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	140	aio_req req; /* currently processed request */
116	void *dbuf;	141	void *dbuf;
117	DIR *dirp;	142	DIR *dirp;
…		…
134	static volatile unsigned int nreqs, nready, npending;	159	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	160	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	161	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	162	static int respipe [2];
138		163
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	164	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	165	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	166	static cond_t reqwait = X_COND_INIT;
142		167
143	#if WORDACCESS_UNSAFE	168	#if WORDACCESS_UNSAFE
144		169
145	static unsigned int get_nready ()	170	static unsigned int get_nready ()
146	{	171	{
147	unsigned int retval;	172	unsigned int retval;
148		173
149	LOCK (reqlock);	174	X_LOCK (reqlock);
150	retval = nready;	175	retval = nready;
151	UNLOCK (reqlock);	176	X_UNLOCK (reqlock);
152		177
153	return retval;	178	return retval;
154	}	179	}
155		180
156	static unsigned int get_npending ()	181	static unsigned int get_npending ()
157	{	182	{
158	unsigned int retval;	183	unsigned int retval;
159		184
160	LOCK (reslock);	185	X_LOCK (reslock);
161	retval = npending;	186	retval = npending;
162	UNLOCK (reslock);	187	X_UNLOCK (reslock);
163		188
164	return retval;	189	return retval;
165	}	190	}
166		191
167	static unsigned int get_nthreads ()	192	static unsigned int get_nthreads ()
168	{	193	{
169	unsigned int retval;	194	unsigned int retval;
170		195
171	LOCK (wrklock);	196	X_LOCK (wrklock);
172	retval = started;	197	retval = started;
173	UNLOCK (wrklock);	198	X_UNLOCK (wrklock);
174		199
175	return retval;	200	return retval;
176	}	201	}
177		202
178	#else	203	#else
…		…
248	if (SvOK (req->callback))	273	if (SvOK (req->callback))
249	{	274	{
250	ENTER;	275	ENTER;
251	SAVETMPS;	276	SAVETMPS;
252	PUSHMARK (SP);	277	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		278
255	switch (req->type)	279	switch (req->type)
256	{	280	{
		281	case REQ_DB_CLOSE:
		282	SvREFCNT_dec (req->sv1);
		283	break;
		284
		285	case REQ_DB_GET:
		286	case REQ_DB_PGET:
		287	dbt_to_sv (req->sv3, &req->dbt3);
		288	break;
		289
		290	case REQ_C_GET:
		291	case REQ_C_PGET:
		292	dbt_to_sv (req->sv1, &req->dbt1);
		293	dbt_to_sv (req->sv2, &req->dbt2);
		294	dbt_to_sv (req->sv3, &req->dbt3);
		295	break;
		296
		297	case REQ_DB_KEY_RANGE:
		298	{
		299	AV *av = newAV ();
		300
		301	av_push (av, newSVnv (req->key_range.less));
		302	av_push (av, newSVnv (req->key_range.equal));
		303	av_push (av, newSVnv (req->key_range.greater));
		304
		305	SvREADONLY_off (req->sv1);
		306	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		307	SvREFCNT_dec (req->sv1);
		308	}
		309	break;
		310
		311	case REQ_SEQ_GET:
		312	SvREADONLY_off (req->sv1);
		313
		314	if (sizeof (IV) > 4)
		315	sv_setiv_mg (req->sv1, req->seq_t);
		316	else
		317	sv_setnv_mg (req->sv1, req->seq_t);
		318
		319	SvREFCNT_dec (req->sv1);
		320	break;
257	}	321	}
		322
		323	errno = req->result;
258		324
259	PUTBACK;	325	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	326	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	327	SPAGAIN;
262		328
…		…
272	free (req->buf1);	338	free (req->buf1);
273	free (req->buf2);	339	free (req->buf2);
274	Safefree (req);	340	Safefree (req);
275	}	341	}
276		342
277	static void *aio_proc(void *arg);	343	static void *aio_proc (void *arg);
278		344
279	static void start_thread (void)	345	static void start_thread (void)
280	{	346	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	347	worker *wrk = calloc (1, sizeof (worker));
285		348
286	if (!wrk)	349	if (!wrk)
287	croak ("unable to allocate worker thread data");	350	croak ("unable to allocate worker thread data");
288		351
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);	352	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	353	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
301	{	354	{
302	wrk->prev = &wrk_first;	355	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	356	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	357	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	358	wrk_first.next = wrk;
306	++started;	359	++started;
307	}	360	}
308	else	361	else
309	free (wrk);	362	free (wrk);
310		363
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	364	X_UNLOCK (wrklock);
313	}	365	}
314		366
315	static void maybe_start_thread ()	367	static void maybe_start_thread ()
316	{	368	{
317	if (get_nthreads () >= wanted)	369	if (get_nthreads () >= wanted)
…		…
324	start_thread ();	376	start_thread ();
325	}	377	}
326		378
327	static void req_send (aio_req req)	379	static void req_send (aio_req req)
328	{	380	{
		381	SV *wait_callback = 0;
		382
		383	// synthesize callback if none given
		384	if (!SvOK (req->callback))
		385	{
		386	dSP;
		387	PUSHMARK (SP);
		388	PUTBACK;
		389	int count = call_sv (prepare_cb, G_ARRAY);
		390	SPAGAIN;
		391
		392	if (count != 2)
		393	croak ("prepare callback must return exactly two values\n");
		394
		395	wait_callback = SvREFCNT_inc (POPs);
		396	SvREFCNT_dec (req->callback);
		397	req->callback = SvREFCNT_inc (POPs);
		398	}
		399
329	++nreqs;	400	++nreqs;
330		401
331	LOCK (reqlock);	402	X_LOCK (reqlock);
332	++nready;	403	++nready;
333	reqq_push (&req_queue, req);	404	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	405	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	406	X_UNLOCK (reqlock);
336		407
337	maybe_start_thread ();	408	maybe_start_thread ();
		409
		410	if (wait_callback)
		411	{
		412	dSP;
		413	PUSHMARK (SP);
		414	PUTBACK;
		415	call_sv (wait_callback, G_DISCARD);
		416	SvREFCNT_dec (wait_callback);
		417	}
338	}	418	}
339		419
340	static void end_thread (void)	420	static void end_thread (void)
341	{	421	{
342	aio_req req;	422	aio_req req;
…		…
344	Newz (0, req, 1, aio_cb);	424	Newz (0, req, 1, aio_cb);
345		425
346	req->type = REQ_QUIT;	426	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	427	req->pri = PRI_MAX + PRI_BIAS;
348		428
349	LOCK (reqlock);	429	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	430	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	431	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	432	X_UNLOCK (reqlock);
353		433
354	LOCK (wrklock);	434	X_LOCK (wrklock);
355	--started;	435	--started;
356	UNLOCK (wrklock);	436	X_UNLOCK (wrklock);
357	}	437	}
358		438
359	static void set_max_idle (int nthreads)	439	static void set_max_idle (int nthreads)
360	{	440	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	441	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	442	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	443	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	444	}
365		445
366	static void min_parallel (int nthreads)	446	static void min_parallel (int nthreads)
367	{	447	{
368	if (wanted < nthreads)	448	if (wanted < nthreads)
…		…
383	fd_set rfd;	463	fd_set rfd;
384		464
385	while (nreqs)	465	while (nreqs)
386	{	466	{
387	int size;	467	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	468	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	469	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	470	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		471
392	if (size)	472	if (size)
393	return;	473	return;
394		474
395	maybe_start_thread ();	475	maybe_start_thread ();
…		…
417	{	497	{
418	for (;;)	498	for (;;)
419	{	499	{
420	maybe_start_thread ();	500	maybe_start_thread ();
421		501
422	LOCK (reslock);	502	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	503	req = reqq_shift (&res_queue);
424		504
425	if (req)	505	if (req)
426	{	506	{
427	--npending;	507	--npending;
…		…
433	while (read (respipe [0], buf, 4) == 4)	513	while (read (respipe [0], buf, 4) == 4)
434	;	514	;
435	}	515	}
436	}	516	}
437		517
438	UNLOCK (reslock);	518	X_UNLOCK (reslock);
439		519
440	if (!req)	520	if (!req)
441	break;	521	break;
442		522
443	--nreqs;	523	--nreqs;
…		…
473	}	553	}
474		554
475	return count;	555	return count;
476	}	556	}
477		557
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	/*****************************************************************************/	558	/*****************************************************************************/
491		559
492	static void *aio_proc (void *thr_arg)	560	static void *aio_proc (void *thr_arg)
493	{	561	{
494	aio_req req;	562	aio_req req;
…		…
501		569
502	for (;;)	570	for (;;)
503	{	571	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	572	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		573
506	LOCK (reqlock);	574	X_LOCK (reqlock);
507		575
508	for (;;)	576	for (;;)
509	{	577	{
510	self->req = req = reqq_shift (&req_queue);	578	self->req = req = reqq_shift (&req_queue);
511		579
512	if (req)	580	if (req)
513	break;	581	break;
514		582
515	++idle;	583	++idle;
516		584
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	585	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	586	== ETIMEDOUT)
519	{	587	{
520	if (idle > max_idle)	588	if (idle > max_idle)
521	{	589	{
522	--idle;	590	--idle;
523	UNLOCK (reqlock);	591	X_UNLOCK (reqlock);
524	LOCK (wrklock);	592	X_LOCK (wrklock);
525	--started;	593	--started;
526	UNLOCK (wrklock);	594	X_UNLOCK (wrklock);
527	goto quit;	595	goto quit;
528	}	596	}
529		597
530	/* we are allowed to idle, so do so without any timeout */	598	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	599	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	600	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	601	}
534		602
535	--idle;	603	--idle;
536	}	604	}
537		605
538	--nready;	606	--nready;
539		607
540	UNLOCK (reqlock);	608	X_UNLOCK (reqlock);
541		609
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	610	switch (req->type)
545	{	611	{
546	case REQ_QUIT:	612	case REQ_QUIT:
547	goto quit;	613	goto quit;
548		614
		615	case REQ_ENV_OPEN:
		616	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		617	break;
		618
		619	case REQ_ENV_CLOSE:
		620	req->result = req->env->close (req->env, req->uint1);
		621	break;
		622
		623	case REQ_ENV_TXN_CHECKPOINT:
		624	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		625	break;
		626
		627	case REQ_ENV_LOCK_DETECT:
		628	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		629	break;
		630
		631	case REQ_ENV_MEMP_SYNC:
		632	req->result = req->env->memp_sync (req->env, 0);
		633	break;
		634
		635	case REQ_ENV_MEMP_TRICKLE:
		636	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		637	break;
		638
		639	case REQ_DB_OPEN:
		640	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		641	break;
		642
		643	case REQ_DB_CLOSE:
		644	req->result = req->db->close (req->db, req->uint1);
		645	break;
		646
		647	case REQ_DB_COMPACT:
		648	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		649	break;
		650
		651	case REQ_DB_SYNC:
		652	req->result = req->db->sync (req->db, req->uint1);
		653	break;
		654
		655	case REQ_DB_PUT:
		656	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		657	break;
		658
		659	case REQ_DB_GET:
		660	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		661	break;
		662
		663	case REQ_DB_PGET:
		664	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		665	break;
		666
		667	case REQ_DB_DEL:
		668	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		669	break;
		670
		671	case REQ_DB_KEY_RANGE:
		672	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		673	break;
		674
		675	case REQ_TXN_COMMIT:
		676	req->result = req->txn->commit (req->txn, req->uint1);
		677	break;
		678
		679	case REQ_TXN_ABORT:
		680	req->result = req->txn->abort (req->txn);
		681	break;
		682
		683	case REQ_C_CLOSE:
		684	req->result = req->dbc->c_close (req->dbc);
		685	break;
		686
		687	case REQ_C_COUNT:
		688	{
		689	db_recno_t recno;
		690	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		691	req->uv1 = recno;
		692	}
		693	break;
		694
		695	case REQ_C_PUT:
		696	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		697	break;
		698
		699	case REQ_C_GET:
		700	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		701	break;
		702
		703	case REQ_C_PGET:
		704	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		705	break;
		706
		707	case REQ_C_DEL:
		708	req->result = req->dbc->c_del (req->dbc, req->uint1);
		709	break;
		710
		711	case REQ_SEQ_OPEN:
		712	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		713	break;
		714
		715	case REQ_SEQ_CLOSE:
		716	req->result = req->seq->close (req->seq, req->uint1);
		717	break;
		718
		719	case REQ_SEQ_GET:
		720	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		721	break;
		722
		723	case REQ_SEQ_REMOVE:
		724	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		725	break;
		726
549	default:	727	default:
550	//req->result = ENOSYS;	728	req->result = ENOSYS;
551	break;	729	break;
552	}	730	}
553		731
554	//req->errorno = errno;
555
556	LOCK (reslock);	732	X_LOCK (reslock);
557		733
558	++npending;	734	++npending;
559		735
560	if (!reqq_push (&res_queue, req))	736	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	737	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	738	write (respipe [1], &respipe, 1);
563		739
564	self->req = 0;	740	self->req = 0;
565	worker_clear (self);	741	worker_clear (self);
566		742
567	UNLOCK (reslock);	743	X_UNLOCK (reslock);
568	}	744	}
569		745
570	quit:	746	quit:
571	LOCK (wrklock);	747	X_LOCK (wrklock);
572	worker_free (self);	748	worker_free (self);
573	UNLOCK (wrklock);	749	X_UNLOCK (wrklock);
574		750
575	return 0;	751	return 0;
576	}	752	}
577		753
578	/*****************************************************************************/	754	/*****************************************************************************/
579		755
580	static void atfork_prepare (void)	756	static void atfork_prepare (void)
581	{	757	{
582	LOCK (wrklock);	758	X_LOCK (wrklock);
583	LOCK (reqlock);	759	X_LOCK (reqlock);
584	LOCK (reslock);	760	X_LOCK (reslock);
585	}	761	}
586		762
587	static void atfork_parent (void)	763	static void atfork_parent (void)
588	{	764	{
589	UNLOCK (reslock);	765	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	766	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	767	X_UNLOCK (wrklock);
592	}	768	}
593		769
594	static void atfork_child (void)	770	static void atfork_child (void)
595	{	771	{
596	aio_req prv;	772	aio_req prv;
…		…
618	nready = 0;	794	nready = 0;
619	npending = 0;	795	npending = 0;
620		796
621	close (respipe [0]);	797	close (respipe [0]);
622	close (respipe [1]);	798	close (respipe [1]);
623	create_pipe ();	799
		800	if (!create_pipe (respipe))
		801	croak ("unable to initialize result pipe");
624		802
625	atfork_parent ();	803	atfork_parent ();
626	}	804	}
627		805
628	#define dREQ(reqtype) \	806	#define dREQ(reqtype) \
…		…
642	req->pri = req_pri	820	req->pri = req_pri
643		821
644	#define REQ_SEND \	822	#define REQ_SEND \
645	req_send (req)	823	req_send (req)
646		824
647	#define SvPTR(var, arg, type, class) \	825	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	826	if (!SvOK (arg)) \
		827	{ \
		828	if (!nullok) \
		829	croak (# var " must be a " # class " object, not undef"); \
		830	\
649	(var) = 0; \	831	(var) = 0; \
		832	} \
650	else if (sv_derived_from ((arg), # class)) \	833	else if (sv_derived_from ((arg), # class)) \
651	{ \	834	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	835	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	836	(var) = INT2PTR (type, tmp); \
		837	if (!var) \
		838	croak (# var " is not a valid " # class " object anymore"); \
654	} \	839	} \
655	else \	840	else \
656	Perl_croak (# var " is not of type " # type)	841	croak (# var " is not of type " # class); \
657		842	\
		843
		844	static void
		845	ptr_nuke (SV *sv)
		846	{
		847	assert (SvROK (sv));
		848	sv_setiv (SvRV (sv), 0);
		849	}
		850
658	MODULE = BDB PACKAGE = BDB	851	MODULE = BDB PACKAGE = BDB
659		852
660	PROTOTYPES: ENABLE	853	PROTOTYPES: ENABLE
661		854
662	BOOT:	855	BOOT:
…		…
702	const_iv (REGION_INIT)	895	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	896	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	897	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	898	const_iv (TXN_SNAPSHOT)
706	const_iv (TXN_WRITE_NOSYNC)	899	const_iv (TXN_WRITE_NOSYNC)
		900	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	901	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	902	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	903	const_iv (XA_CREATE)
710	const_iv (BTREE)	904	const_iv (BTREE)
711	const_iv (HASH)	905	const_iv (HASH)
712	const_iv (QUEUE)	906	const_iv (QUEUE)
713	const_iv (RECNO)	907	const_iv (RECNO)
714	const_iv (UNKNOWN)	908	const_iv (UNKNOWN)
715	const_iv (EXCL)	909	const_iv (EXCL)
		910	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	911	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	912	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	913	const_iv (NOSYNC)
719	const_iv (CHKSUM)	914	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	915	const_iv (ENCRYPT)
…		…
725	const_iv (RENUMBER)	920	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	921	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	922	const_iv (INORDER)
728	const_iv (CONSUME)	923	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	924	const_iv (CONSUME_WAIT)
		925	const_iv (GET_BOTH)
		926	const_iv (GET_BOTH_RANGE)
		927	//const_iv (SET_RECNO)
		928	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	929	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	930	const_iv (JOIN_ITEM)
732	const_iv (RMW)	931	const_iv (RMW)
733		932
734	const_iv (NOTFOUND)	933	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	934	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	935	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	936	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	937	const_iv (RUNRECOVERY)
		938	const_iv (OLD_VERSION)
		939	const_iv (REP_HANDLE_DEAD)
		940	const_iv (REP_LOCKOUT)
		941	const_iv (SECONDARY_BAD)
		942
		943	const_iv (FREE_SPACE)
		944	const_iv (FREELIST_ONLY)
		945
		946	const_iv (APPEND)
		947	const_iv (NODUPDATA)
		948	const_iv (NOOVERWRITE)
		949
		950	const_iv (TXN_NOWAIT)
		951	const_iv (TXN_SNAPSHOT)
		952	const_iv (TXN_SYNC)
		953
		954	const_iv (SET_LOCK_TIMEOUT)
		955	const_iv (SET_TXN_TIMEOUT)
		956
		957	const_iv (JOIN_ITEM)
		958	const_iv (FIRST)
		959	const_iv (NEXT)
		960	const_iv (NEXT_DUP)
		961	const_iv (NEXT_NODUP)
		962	const_iv (PREV)
		963	const_iv (PREV_NODUP)
		964	const_iv (SET)
		965	const_iv (SET_RANGE)
		966	const_iv (LAST)
		967	const_iv (BEFORE)
		968	const_iv (AFTER)
		969	const_iv (CURRENT)
		970	const_iv (KEYFIRST)
		971	const_iv (KEYLAST)
		972	const_iv (NODUPDATA)
		973
		974	const_iv (FORCE)
		975
		976	const_iv (LOCK_DEFAULT)
		977	const_iv (LOCK_EXPIRE)
		978	const_iv (LOCK_MAXLOCKS)
		979	const_iv (LOCK_MAXWRITE)
		980	const_iv (LOCK_MINLOCKS)
		981	const_iv (LOCK_MINWRITE)
		982	const_iv (LOCK_OLDEST)
		983	const_iv (LOCK_RANDOM)
		984	const_iv (LOCK_YOUNGEST)
		985
		986	const_iv (SEQ_DEC)
		987	const_iv (SEQ_INC)
		988	const_iv (SEQ_WRAP)
739	};	989	};
740		990
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	991	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	992	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		993
744	create_pipe ();	994	if (!create_pipe (respipe))
		995	croak ("unable to initialize result pipe");
		996
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	997	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		998	#ifdef _WIN32
		999	X_MUTEX_CHECK (wrklock);
		1000	X_MUTEX_CHECK (reslock);
		1001	X_MUTEX_CHECK (reqlock);
		1002
		1003	X_COND_CHECK (reqwait);
		1004	#endif
746	}	1005	}
747		1006
748	void	1007	void
749	max_poll_reqs (int nreqs)	1008	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1009	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1038	max_outstanding = maxreqs;
780	OUTPUT:	1039	OUTPUT:
781	RETVAL	1040	RETVAL
782		1041
783	int	1042	int
784	bdbreq_pri (int pri = 0)	1043	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1044	PROTOTYPE: ;$
786	CODE:	1045	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1046	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1047	if (items > 0)
789	{	1048	{
…		…
793	}	1052	}
794	OUTPUT:	1053	OUTPUT:
795	RETVAL	1054	RETVAL
796		1055
797	void	1056	void
798	bdbreq_nice (int nice = 0)	1057	dbreq_nice (int nice = 0)
799	CODE:	1058	CODE:
800	nice = next_pri - nice;	1059	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1060	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1061	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1062	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1070	poll_wait ();
812	poll_cb ();	1071	poll_cb ();
813	}	1072	}
814		1073
815	int	1074	int
816	poll()	1075	poll ()
817	PROTOTYPE:	1076	PROTOTYPE:
818	CODE:	1077	CODE:
819	poll_wait ();	1078	poll_wait ();
820	RETVAL = poll_cb ();	1079	RETVAL = poll_cb ();
821	OUTPUT:	1080	OUTPUT:
822	RETVAL	1081	RETVAL
823		1082
824	int	1083	int
825	poll_fileno()	1084	poll_fileno ()
826	PROTOTYPE:	1085	PROTOTYPE:
827	CODE:	1086	CODE:
828	RETVAL = respipe [0];	1087	RETVAL = respipe [0];
829	OUTPUT:	1088	OUTPUT:
830	RETVAL	1089	RETVAL
831		1090
832	int	1091	int
833	poll_cb(...)	1092	poll_cb (...)
834	PROTOTYPE:	1093	PROTOTYPE:
835	CODE:	1094	CODE:
836	RETVAL = poll_cb ();	1095	RETVAL = poll_cb ();
837	OUTPUT:	1096	OUTPUT:
838	RETVAL	1097	RETVAL
839		1098
840	void	1099	void
841	poll_wait()	1100	poll_wait ()
842	PROTOTYPE:	1101	PROTOTYPE:
843	CODE:	1102	CODE:
844	poll_wait ();	1103	poll_wait ();
845		1104
846	int	1105	int
847	nreqs()	1106	nreqs ()
848	PROTOTYPE:	1107	PROTOTYPE:
849	CODE:	1108	CODE:
850	RETVAL = nreqs;	1109	RETVAL = nreqs;
851	OUTPUT:	1110	OUTPUT:
852	RETVAL	1111	RETVAL
853		1112
854	int	1113	int
855	nready()	1114	nready ()
856	PROTOTYPE:	1115	PROTOTYPE:
857	CODE:	1116	CODE:
858	RETVAL = get_nready ();	1117	RETVAL = get_nready ();
859	OUTPUT:	1118	OUTPUT:
860	RETVAL	1119	RETVAL
861		1120
862	int	1121	int
863	npending()	1122	npending ()
864	PROTOTYPE:	1123	PROTOTYPE:
865	CODE:	1124	CODE:
866	RETVAL = get_npending ();	1125	RETVAL = get_npending ();
867	OUTPUT:	1126	OUTPUT:
868	RETVAL	1127	RETVAL
869		1128
870	int	1129	int
871	nthreads()	1130	nthreads ()
872	PROTOTYPE:	1131	PROTOTYPE:
873	CODE:	1132	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1133	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1134	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1135	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1136	OUTPUT:
878	RETVAL	1137	RETVAL
879		1138
		1139	void
		1140	set_sync_prepare (SV *cb)
		1141	PROTOTYPE: &
		1142	CODE:
		1143	SvREFCNT_dec (prepare_cb);
		1144	prepare_cb = newSVsv (cb);
		1145
		1146
880	DB_ENV *	1147	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1148	db_env_create (U32 env_flags = 0)
882	CODE:	1149	CODE:
883	{	1150	{
884	int err = db_env_create (&RETVAL, env_flags);	1151	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1152	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1153	croak ("db_env_create: %s", db_strerror (errno));
887	}	1154	}
		1155	OUTPUT:
		1156	RETVAL
888		1157
889	void	1158	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1159	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1160	CODE:
892	{	1161	{
		1162	env->set_thread_count (env, get_nthreads ());
		1163
893	dREQ (REQ_ENV_OPEN);	1164	dREQ (REQ_ENV_OPEN);
894	req->env = env;	1165	req->env = env;
895	req->uint1 = open_flags;	1166	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1167	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1168	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1169	REQ_SEND;
899	}	1170	}
900		1171
901	void	1172	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1173	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1174	CODE:
904	{	1175	{
905	dREQ (REQ_ENV_CLOSE);	1176	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1177	req->env = env;
907	req->uint1 = flags;	1178	req->uint1 = flags;
908	REQ_SEND;	1179	REQ_SEND;
		1180	ptr_nuke (ST (0));
909	}	1181	}
		1182
		1183	void
		1184	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1185	CODE:
		1186	{
		1187	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1188	req->env = env;
		1189	req->uint1 = kbyte;
		1190	req->int1 = min;
		1191	req->uint2 = flags;
		1192	REQ_SEND;
		1193	}
		1194
		1195	void
		1196	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1197	CODE:
		1198	{
		1199	dREQ (REQ_ENV_LOCK_DETECT);
		1200	req->env = env;
		1201	req->uint1 = flags;
		1202	req->uint2 = atype;
		1203	REQ_SEND;
		1204	}
		1205
		1206	void
		1207	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1208	CODE:
		1209	{
		1210	dREQ (REQ_ENV_MEMP_SYNC);
		1211	req->env = env;
		1212	REQ_SEND;
		1213	}
		1214
		1215	void
		1216	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1217	CODE:
		1218	{
		1219	dREQ (REQ_ENV_MEMP_TRICKLE);
		1220	req->env = env;
		1221	req->int1 = percent;
		1222	REQ_SEND;
		1223	}
		1224
910		1225
911	DB *	1226	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1227	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1228	CODE:
914	{	1229	{
915	int err = db_create (&RETVAL, env, flags);	1230	errno = db_create (&RETVAL, env, flags);
916	if (err)	1231	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1232	croak ("db_create: %s", db_strerror (errno));
918	}
919		1233
		1234	if (RETVAL)
		1235	RETVAL->app_private = (void *)newSVsv (ST (0));
		1236	}
		1237	OUTPUT:
		1238	RETVAL
		1239
920	void	1240	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)	1241	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:	1242	CODE:
923	{	1243	{
924	dREQ (REQ_DB_OPEN);	1244	dREQ (REQ_DB_OPEN);
925	req->db = db;	1245	req->db = db;
926	req->txn = txnid;	1246	req->txn = txnid;
927	req->buf1 = strdup (file);	1247	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1248	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1249	req->int1 = type;
930	req->uint1 = flags;	1250	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1251	req->int2 = mode;
932	REQ_SEND;	1252	REQ_SEND;
933	}	1253	}
934		1254
935	void	1255	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1256	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1257	CODE:
938	{	1258	{
939	dREQ (REQ_DB_CLOSE);	1259	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1260	req->db = db;
941	req->uint1 = flags;	1261	req->uint1 = flags;
		1262	req->sv1 = (SV *)db->app_private;
		1263	REQ_SEND;
		1264	ptr_nuke (ST (0));
		1265	}
		1266
		1267	void
		1268	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)
		1269	CODE:
		1270	{
		1271	dREQ (REQ_DB_COMPACT);
		1272	req->db = db;
		1273	req->txn = txn;
		1274	sv_to_dbt (&req->dbt1, start);
		1275	sv_to_dbt (&req->dbt2, stop);
		1276	req->uint1 = flags;
		1277	REQ_SEND;
		1278	}
		1279
		1280	void
		1281	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1282	CODE:
		1283	{
		1284	dREQ (REQ_DB_SYNC);
		1285	req->db = db;
		1286	req->uint1 = flags;
		1287	REQ_SEND;
		1288	}
		1289
		1290	void
		1291	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1292	CODE:
		1293	{
		1294	dREQ (REQ_DB_KEY_RANGE);
		1295	req->db = db;
		1296	req->txn = txn;
		1297	sv_to_dbt (&req->dbt1, key);
		1298	req->uint1 = flags;
		1299	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1300	REQ_SEND;
		1301	}
		1302
		1303	void
		1304	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1305	CODE:
		1306	{
		1307	dREQ (REQ_DB_PUT);
		1308	req->db = db;
		1309	req->txn = txn;
		1310	sv_to_dbt (&req->dbt1, key);
		1311	sv_to_dbt (&req->dbt2, data);
		1312	req->uint1 = flags;
		1313	REQ_SEND;
		1314	}
		1315
		1316	void
		1317	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1318	CODE:
		1319	{
		1320	dREQ (REQ_DB_GET);
		1321	req->db = db;
		1322	req->txn = txn;
		1323	req->uint1 = flags;
		1324	sv_to_dbt (&req->dbt1, key);
		1325	req->dbt3.flags = DB_DBT_MALLOC;
		1326	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1327	REQ_SEND;
		1328	}
		1329
		1330	void
		1331	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1332	CODE:
		1333	{
		1334	dREQ (REQ_DB_PGET);
		1335	req->db = db;
		1336	req->txn = txn;
		1337	req->uint1 = flags;
		1338	sv_to_dbt (&req->dbt1, key);
		1339	sv_to_dbt (&req->dbt2, pkey);
		1340	req->dbt3.flags = DB_DBT_MALLOC;
		1341	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1342	REQ_SEND;
		1343	}
		1344
		1345	void
		1346	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1347	CODE:
		1348	{
		1349	dREQ (REQ_DB_DEL);
		1350	req->db = db;
		1351	req->txn = txn;
		1352	req->uint1 = flags;
		1353	sv_to_dbt (&req->dbt1, key);
		1354	REQ_SEND;
		1355	}
		1356
		1357	void
		1358	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1359	CODE:
		1360	{
		1361	dREQ (REQ_TXN_COMMIT);
		1362	req->txn = txn;
		1363	req->uint1 = flags;
		1364	REQ_SEND;
		1365	ptr_nuke (ST (0));
		1366	}
		1367
		1368	void
		1369	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1370	CODE:
		1371	{
		1372	dREQ (REQ_TXN_ABORT);
		1373	req->txn = txn;
		1374	REQ_SEND;
		1375	ptr_nuke (ST (0));
		1376	}
		1377
		1378	void
		1379	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1380	CODE:
		1381	{
		1382	dREQ (REQ_C_CLOSE);
		1383	req->dbc = dbc;
		1384	REQ_SEND;
		1385	ptr_nuke (ST (0));
		1386	}
		1387
		1388	void
		1389	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1390	CODE:
		1391	{
		1392	dREQ (REQ_C_COUNT);
		1393	req->dbc = dbc;
		1394	req->sv1 = SvREFCNT_inc (count);
		1395	REQ_SEND;
		1396	}
		1397
		1398	void
		1399	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1400	CODE:
		1401	{
		1402	dREQ (REQ_C_PUT);
		1403	req->dbc = dbc;
		1404	sv_to_dbt (&req->dbt1, key);
		1405	sv_to_dbt (&req->dbt2, data);
		1406	req->uint1 = flags;
		1407	REQ_SEND;
		1408	}
		1409
		1410	void
		1411	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1412	CODE:
		1413	{
		1414	dREQ (REQ_C_GET);
		1415	req->dbc = dbc;
		1416	req->uint1 = flags;
		1417	if ((flags & DB_SET) == DB_SET
		1418	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1419	sv_to_dbt (&req->dbt1, key);
		1420	else
		1421	req->dbt1.flags = DB_DBT_MALLOC;
		1422
		1423	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1424
		1425	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1426	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1427	sv_to_dbt (&req->dbt3, data);
		1428	else
		1429	req->dbt3.flags = DB_DBT_MALLOC;
		1430
		1431	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1432	REQ_SEND;
		1433	}
		1434
		1435	void
		1436	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1437	CODE:
		1438	{
		1439	dREQ (REQ_C_PGET);
		1440	req->dbc = dbc;
		1441	req->uint1 = flags;
		1442	if ((flags & DB_SET) == DB_SET
		1443	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1444	sv_to_dbt (&req->dbt1, key);
		1445	else
		1446	req->dbt1.flags = DB_DBT_MALLOC;
		1447
		1448	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1449
		1450	req->dbt2.flags = DB_DBT_MALLOC;
		1451	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1452
		1453	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1454	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1455	sv_to_dbt (&req->dbt3, data);
		1456	else
		1457	req->dbt3.flags = DB_DBT_MALLOC;
		1458
		1459	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1460	REQ_SEND;
		1461	}
		1462
		1463	void
		1464	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1465	CODE:
		1466	{
		1467	dREQ (REQ_C_DEL);
		1468	req->dbc = dbc;
		1469	req->uint1 = flags;
		1470	REQ_SEND;
		1471	}
		1472
		1473
		1474	void
		1475	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1476	CODE:
		1477	{
		1478	dREQ (REQ_SEQ_OPEN);
		1479	req->seq = seq;
		1480	req->txn = txnid;
		1481	req->uint1 = flags | DB_THREAD;
		1482	sv_to_dbt (&req->dbt1, key);
		1483	REQ_SEND;
		1484	}
		1485
		1486	void
		1487	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1488	CODE:
		1489	{
		1490	dREQ (REQ_SEQ_CLOSE);
		1491	req->seq = seq;
		1492	req->uint1 = flags;
		1493	REQ_SEND;
		1494	ptr_nuke (ST (0));
		1495	}
		1496
		1497	void
		1498	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)
		1499	CODE:
		1500	{
		1501	dREQ (REQ_SEQ_GET);
		1502	req->seq = seq;
		1503	req->txn = txnid;
		1504	req->int1 = delta;
		1505	req->uint1 = flags;
		1506	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1507	REQ_SEND;
		1508	}
		1509
		1510	void
		1511	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1512	CODE:
		1513	{
		1514	dREQ (REQ_SEQ_REMOVE);
		1515	req->seq = seq;
		1516	req->txn = txnid;
		1517	req->uint1 = flags;
942	REQ_SEND;	1518	REQ_SEND;
943	}	1519	}
944		1520
945		1521
946	MODULE = BDB PACKAGE = BDB::Env	1522	MODULE = BDB PACKAGE = BDB::Env
947		1523
		1524	void
		1525	DESTROY (DB_ENV_ornull *env)
		1526	CODE:
		1527	if (env)
		1528	env->close (env, 0);
		1529
		1530	int set_data_dir (DB_ENV *env, const char *dir)
		1531	CODE:
		1532	RETVAL = env->set_data_dir (env, dir);
		1533	OUTPUT:
		1534	RETVAL
		1535
		1536	int set_tmp_dir (DB_ENV *env, const char *dir)
		1537	CODE:
		1538	RETVAL = env->set_tmp_dir (env, dir);
		1539	OUTPUT:
		1540	RETVAL
		1541
		1542	int set_lg_dir (DB_ENV *env, const char *dir)
		1543	CODE:
		1544	RETVAL = env->set_lg_dir (env, dir);
		1545	OUTPUT:
		1546	RETVAL
		1547
		1548	int set_shm_key (DB_ENV *env, long shm_key)
		1549	CODE:
		1550	RETVAL = env->set_shm_key (env, shm_key);
		1551	OUTPUT:
		1552	RETVAL
		1553
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1554	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1555	CODE:
		1556	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1557	OUTPUT:
		1558	RETVAL
949		1559
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1560	int set_flags (DB_ENV *env, U32 flags, int onoff)
		1561	CODE:
		1562	RETVAL = env->set_flags (env, flags, onoff);
		1563	OUTPUT:
		1564	RETVAL
951		1565
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1566	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1567	CODE:
		1568	RETVAL = env->set_encrypt (env, password, flags);
		1569	OUTPUT:
		1570	RETVAL
		1571
		1572	int set_timeout (DB_ENV *env, NV timeout, U32 flags)
		1573	CODE:
		1574	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1575	OUTPUT:
		1576	RETVAL
		1577
		1578	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1579	CODE:
		1580	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1581	OUTPUT:
		1582	RETVAL
		1583
		1584	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1585	CODE:
		1586	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1591	CODE:
		1592	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1593	OUTPUT:
		1594	RETVAL
		1595
		1596	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1597	CODE:
		1598	RETVAL = env->set_lk_detect (env, detect);
		1599	OUTPUT:
		1600	RETVAL
		1601
		1602	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1603	CODE:
		1604	RETVAL = env->set_lk_max_lockers (env, max);
		1605	OUTPUT:
		1606	RETVAL
		1607
		1608	int set_lk_max_locks (DB_ENV *env, U32 max)
		1609	CODE:
		1610	RETVAL = env->set_lk_max_locks (env, max);
		1611	OUTPUT:
		1612	RETVAL
		1613
		1614	int set_lk_max_objects (DB_ENV *env, U32 max)
		1615	CODE:
		1616	RETVAL = env->set_lk_max_objects (env, max);
		1617	OUTPUT:
		1618	RETVAL
		1619
		1620	int set_lg_bsize (DB_ENV *env, U32 max)
		1621	CODE:
		1622	RETVAL = env->set_lg_bsize (env, max);
		1623	OUTPUT:
		1624	RETVAL
		1625
		1626	int set_lg_max (DB_ENV *env, U32 max)
		1627	CODE:
		1628	RETVAL = env->set_lg_max (env, max);
		1629	OUTPUT:
		1630	RETVAL
		1631
		1632	DB_TXN *
		1633	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1634	CODE:
		1635	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1636	if (errno)
		1637	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1638	OUTPUT:
		1639	RETVAL
953		1640
954	MODULE = BDB PACKAGE = BDB::Db	1641	MODULE = BDB PACKAGE = BDB::Db
955		1642
		1643	void
		1644	DESTROY (DB_ornull *db)
		1645	CODE:
		1646	if (db)
		1647	{
		1648	SV *env = (SV *)db->app_private;
		1649	db->close (db, 0);
		1650	SvREFCNT_dec (env);
		1651	}
		1652
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1653	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1654	CODE:
		1655	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1656	OUTPUT:
		1657	RETVAL
957		1658
958	int set_flags (DB *env, U32 flags, int onoff)	1659	int set_flags (DB *db, U32 flags);
		1660	CODE:
		1661	RETVAL = db->set_flags (db, flags);
		1662	OUTPUT:
		1663	RETVAL
959		1664
960	int set_encrypt (DB *db, const char *password, U32 flags)	1665	int set_encrypt (DB *db, const char *password, U32 flags)
		1666	CODE:
		1667	RETVAL = db->set_encrypt (db, password, flags);
		1668	OUTPUT:
		1669	RETVAL
961		1670
962	int set_lorder (DB *db, int lorder)	1671	int set_lorder (DB *db, int lorder)
963		1672	CODE:
		1673	RETVAL = db->set_lorder (db, lorder);
		1674	OUTPUT:
		1675	RETVAL
964		1676
965	int set_bt_minkey (DB *db, U32 minkey)	1677	int set_bt_minkey (DB *db, U32 minkey)
		1678	CODE:
		1679	RETVAL = db->set_bt_minkey (db, minkey);
		1680	OUTPUT:
		1681	RETVAL
966		1682
967	int set_re_delim(DB *db, int delim);	1683	int set_re_delim(DB *db, int delim);
		1684	CODE:
		1685	RETVAL = db->set_re_delim (db, delim);
		1686	OUTPUT:
		1687	RETVAL
968		1688
969	int set_re_pad (DB *db, int re_pad)	1689	int set_re_pad (DB *db, int re_pad)
		1690	CODE:
		1691	RETVAL = db->set_re_pad (db, re_pad);
		1692	OUTPUT:
		1693	RETVAL
970		1694
971	int set_re_source (DB *db, char *source)	1695	int set_re_source (DB *db, char *source)
		1696	CODE:
		1697	RETVAL = db->set_re_source (db, source);
		1698	OUTPUT:
		1699	RETVAL
972		1700
973	int set_re_len (DB *db, U32 re_len)	1701	int set_re_len (DB *db, U32 re_len)
		1702	CODE:
		1703	RETVAL = db->set_re_len (db, re_len);
		1704	OUTPUT:
		1705	RETVAL
974		1706
975	int set_h_ffactor (DB *db, U32 h_ffactor)	1707	int set_h_ffactor (DB *db, U32 h_ffactor)
		1708	CODE:
		1709	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1710	OUTPUT:
		1711	RETVAL
976		1712
977	int set_h_nelem (DB *db, U32 h_nelem)	1713	int set_h_nelem (DB *db, U32 h_nelem)
		1714	CODE:
		1715	RETVAL = db->set_h_nelem (db, h_nelem);
		1716	OUTPUT:
		1717	RETVAL
978		1718
979	int set_q_extentsize (DB *db, U32 extentsize)	1719	int set_q_extentsize (DB *db, U32 extentsize)
		1720	CODE:
		1721	RETVAL = db->set_q_extentsize (db, extentsize);
		1722	OUTPUT:
		1723	RETVAL
980		1724
		1725	DBC *
		1726	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		1727	CODE:
		1728	errno = db->cursor (db, txn, &RETVAL, flags);
		1729	if (errno)
		1730	croak ("DB->cursor: %s", db_strerror (errno));
		1731	OUTPUT:
		1732	RETVAL
981		1733
		1734	DB_SEQUENCE *
		1735	sequence (DB *db, U32 flags = 0)
		1736	CODE:
		1737	{
		1738	errno = db_sequence_create (&RETVAL, db, flags);
		1739	if (errno)
		1740	croak ("db_sequence_create: %s", db_strerror (errno));
		1741	}
		1742	OUTPUT:
		1743	RETVAL
		1744
		1745
		1746	MODULE = BDB PACKAGE = BDB::Txn
		1747
		1748	void
		1749	DESTROY (DB_TXN_ornull *txn)
		1750	CODE:
		1751	if (txn)
		1752	txn->abort (txn);
		1753
		1754	int set_timeout (DB_TXN *txn, NV timeout, U32 flags)
		1755	CODE:
		1756	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		1757	OUTPUT:
		1758	RETVAL
		1759
		1760
		1761	MODULE = BDB PACKAGE = BDB::Cursor
		1762
		1763	void
		1764	DESTROY (DBC_ornull *dbc)
		1765	CODE:
		1766	if (dbc)
		1767	dbc->c_close (dbc);
		1768
		1769	MODULE = BDB PACKAGE = BDB::Sequence
		1770
		1771	void
		1772	DESTROY (DB_SEQUENCE_ornull *seq)
		1773	CODE:
		1774	if (seq)
		1775	seq->close (seq, 0);
		1776
		1777	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		1778	CODE:
		1779	RETVAL = seq->initial_value (seq, value);
		1780	OUTPUT:
		1781	RETVAL
		1782
		1783	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		1784	CODE:
		1785	RETVAL = seq->set_cachesize (seq, size);
		1786	OUTPUT:
		1787	RETVAL
		1788
		1789	int set_flags (DB_SEQUENCE *seq, U32 flags)
		1790	CODE:
		1791	RETVAL = seq->set_flags (seq, flags);
		1792	OUTPUT:
		1793	RETVAL
		1794
		1795	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		1796	CODE:
		1797	RETVAL = seq->set_range (seq, min, max);
		1798	OUTPUT:
		1799	RETVAL
		1800

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