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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 1.76 by root, Fri Jul 29 09:30:20 2011 UTC

1	/* solaris */	1	#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2	#define _POSIX_PTHREAD_SEMANTICS 1
3		2
4	#if __linux && !defined(_GNU_SOURCE)	3	#include "xthread.h"
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		4
11	#include <errno.h>	5	#include <errno.h>
12		6
13	#include "EXTERN.h"	7	#include "EXTERN.h"
14	#include "perl.h"	8	#include "perl.h"
15	#include "XSUB.h"	9	#include "XSUB.h"
16		10
17	#include <pthread.h>	11	#include "schmorp.h"
		12
		13	// perl stupidly defines these as argument-less macros, breaking
		14	// lots and lots of code.
		15	#undef open
		16	#undef close
		17	#undef abort
		18	#undef malloc
		19	#undef free
		20	#undef send
18		21
19	#include <stddef.h>	22	#include <stddef.h>
20	#include <stdlib.h>	23	#include <stdlib.h>
21	#include <errno.h>	24	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	25	#include <sys/types.h>
24	#include <limits.h>	26	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	27	#include <fcntl.h>
27		28
		29	#ifndef _WIN32
		30	# include <sys/time.h>
		31	# include <unistd.h>
		32	#endif
		33
28	#include <db.h>	34	#include <db.h>
		35
		36	#define DBVER DB_VERSION_MAJOR * 100 + DB_VERSION_MINOR
		37
		38	#if DBVER < 403
		39	# error you need Berkeley DB 4.3 or a newer version installed
		40	#endif
29		41
30	/* number of seconds after which idle threads exit */	42	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	43	#define IDLE_TIMEOUT 10
32		44
33	/* wether word reads are potentially non-atomic.	45	typedef SV SV_mutable;
34	* this is conservatice, likely most arches this runs	46
35	* on have atomic word read/writes.	47	typedef DB_ENV DB_ENV_ornull;
36	*/	48	typedef DB_TXN DB_TXN_ornull;
37	#ifndef WORDACCESS_UNSAFE	49	typedef DBC DBC_ornull;
38	# if __i386 || __x86_64	50	typedef DB DB_ornull;
39	# define WORDACCESS_UNSAFE 0	51
40	# else	52	typedef DB_ENV DB_ENV_ornuked;
41	# define WORDACCESS_UNSAFE 1	53	typedef DB_TXN DB_TXN_ornuked;
		54	typedef DBC DBC_ornuked;
		55	typedef DB DB_ornuked;
		56
		57	#if DBVER >= 403
		58	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		59	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
42	# endif	60	#endif
43	#endif
44		61
45	typedef SV SV8; /* byte-sv, used for argument-checking */	62	typedef char *bdb_filename;
46		63
		64	static SV *prepare_cb;
		65
		66	static HV
		67	*bdb_stash,
		68	*bdb_env_stash,
		69	*bdb_txn_stash,
		70	*bdb_cursor_stash,
		71	*bdb_db_stash,
		72	*bdb_sequence_stash;
		73
		74	#if DBVER >= 406
		75	# define c_close close
		76	# define c_count count
		77	# define c_del del
		78	# define c_dup dup
		79	# define c_get get
		80	# define c_pget pget
		81	# define c_put put
		82	#endif
		83
		84	static char *
		85	get_bdb_filename (SV *sv)
		86	{
		87	if (!SvOK (sv))
		88	return 0;
		89
		90	#if _WIN32
		91	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		92	{
		93	STRLEN len;
		94	char *src = SvPVbyte (sv, len);
		95	SV *t1 = sv_newmortal ();
		96	SV *t2 = sv_newmortal ();
		97
		98	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		99	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		100
		101	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		102	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		103	SvPOK_only (t2);
		104	SvPVX (t2)[len] = 0;
		105	SvCUR_set (t2, len);
		106
		107	return SvPVX (t2);
		108	}
		109	#else
		110	return SvPVbyte_nolen (sv);
		111	#endif
		112	}
		113
		114	static void
		115	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		116	{
		117	printf ("err[%s]\n", msg);
		118	}
		119
		120	static void
		121	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		122	{
		123	printf ("msg[%s]\n", msg);
		124	}
		125
		126	static char *
		127	strdup_ornull (const char *s)
		128	{
		129	return s ? strdup (s) : 0;
		130	}
		131
		132	static void
		133	sv_to_dbt (DBT *dbt, SV *sv)
		134	{
		135	STRLEN len;
		136	char *data = SvPVbyte (sv, len);
		137
		138	dbt->data = malloc (len);
		139	memcpy (dbt->data, data, len);
		140	dbt->size = len;
		141	dbt->flags = DB_DBT_REALLOC;
		142	}
		143
		144	static void
		145	dbt_to_sv (SV *sv, DBT *dbt)
		146	{
		147	if (sv)
		148	{
		149	SvREADONLY_off (sv);
		150
		151	if (dbt->data)
		152	sv_setpvn_mg (sv, dbt->data, dbt->size);
		153	else
		154	sv_setsv_mg (sv, &PL_sv_undef);
		155
		156	SvREFCNT_dec (sv);
		157	}
		158
		159	free (dbt->data);
		160	}
		161
47	enum	162	enum {
48	{
49	REQ_QUIT,	163	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	164	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	165	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		166	REQ_ENV_LOG_ARCHIVE,
		167	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_VERIFY, REQ_DB_UPGRADE,
		168	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		169	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		170	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		171	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	172	};
53		173
54	typedef struct aio_cb	174	typedef struct bdb_cb
55	{	175	{
56	struct aio_cb *volatile next;	176	struct bdb_cb *volatile next;
57	SV *callback;	177	SV *callback;
58	int type, pri, errorno;	178	int type, pri, result;
59		179
60	DB_ENV *env;	180	DB_ENV *env;
61	DB *db;	181	DB *db;
62	DB_TXN *txn;	182	DB_TXN *txn;
63	DBC *cursor;	183	DBC *dbc;
		184
		185	UV uv1;
64	int int1, int2;	186	int int1, int2;
65	U32 uint1, uint2;	187	U32 uint1, uint2;
66	char *buf1, *buf2;	188	char *buf1, *buf2, *buf3;
67	} aio_cb;	189	SV *sv1, *sv2, *sv3;
68		190
		191	DBT dbt1, dbt2, dbt3;
		192	DB_KEY_RANGE key_range;
		193	#if DBVER >= 403
		194	DB_SEQUENCE *seq;
		195	db_seq_t seq_t;
		196	#endif
		197
		198	SV *rsv1, *rsv2; // keep some request objects alive
		199	} bdb_cb;
		200
69	typedef aio_cb *aio_req;	201	typedef bdb_cb *bdb_req;
70		202
71	enum {	203	enum {
72	PRI_MIN = -4,	204	PRI_MIN = -4,
73	PRI_MAX = 4,	205	PRI_MAX = 4,
74		206
…		…
77	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	209	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
78	};	210	};
79		211
80	#define AIO_TICKS ((1000000 + 1023) >> 10)	212	#define AIO_TICKS ((1000000 + 1023) >> 10)
81		213
		214	static SV *on_next_submit;
		215
82	static unsigned int max_poll_time = 0;	216	static unsigned int max_poll_time = 0;
83	static unsigned int max_poll_reqs = 0;	217	static unsigned int max_poll_reqs = 0;
84		218
85	/* calculcate time difference in ~1/AIO_TICKS of a second */	219	/* calculcate time difference in ~1/AIO_TICKS of a second */
86	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	220	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
91		225
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	226	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		227
94	static unsigned int started, idle, wanted;	228	static unsigned int started, idle, wanted;
95		229
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 */	230	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	231	static xmutex_t wrklock = X_MUTEX_INIT;
107		232
108	typedef struct worker {	233	typedef struct worker {
109	/* locked by wrklock */	234	/* locked by wrklock */
110	struct worker *prev, *next;	235	struct worker *prev, *next;
111		236
112	pthread_t tid;	237	xthread_t tid;
113		238
114	/* locked by reslock, reqlock or wrklock */	239	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	240	bdb_req req; /* currently processed request */
116	void *dbuf;	241	void *dbuf;
117	DIR *dirp;	242	DIR *dirp;
118	} worker;	243	} worker;
119		244
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	245	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	257	}
133		258
134	static volatile unsigned int nreqs, nready, npending;	259	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	260	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	261	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	262	static s_epipe respipe;
138		263
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	264	static xmutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	265	static xmutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	266	static xcond_t reqwait = X_COND_INIT;
142		267
143	#if WORDACCESS_UNSAFE	268	#if WORDACCESS_UNSAFE
144		269
145	static unsigned int get_nready ()	270	static unsigned int get_nready (void)
146	{	271	{
147	unsigned int retval;	272	unsigned int retval;
148		273
149	LOCK (reqlock);	274	X_LOCK (reqlock);
150	retval = nready;	275	retval = nready;
151	UNLOCK (reqlock);	276	X_UNLOCK (reqlock);
152		277
153	return retval;	278	return retval;
154	}	279	}
155		280
156	static unsigned int get_npending ()	281	static unsigned int get_npending (void)
157	{	282	{
158	unsigned int retval;	283	unsigned int retval;
159		284
160	LOCK (reslock);	285	X_LOCK (reslock);
161	retval = npending;	286	retval = npending;
162	UNLOCK (reslock);	287	X_UNLOCK (reslock);
163		288
164	return retval;	289	return retval;
165	}	290	}
166		291
167	static unsigned int get_nthreads ()	292	static unsigned int get_nthreads (void)
168	{	293	{
169	unsigned int retval;	294	unsigned int retval;
170		295
171	LOCK (wrklock);	296	X_LOCK (wrklock);
172	retval = started;	297	retval = started;
173	UNLOCK (wrklock);	298	X_UNLOCK (wrklock);
174		299
175	return retval;	300	return retval;
176	}	301	}
177		302
178	#else	303	#else
…		…
187	* a somewhat faster data structure might be nice, but	312	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	313	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	314	* per shift, the most expensive operation.
190	*/	315	*/
191	typedef struct {	316	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	317	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	318	int size;
194	} reqq;	319	} reqq;
195		320
196	static reqq req_queue;	321	static reqq req_queue;
197	static reqq res_queue;	322	static reqq res_queue;
198		323
199	int reqq_push (reqq *q, aio_req req)	324	int reqq_push (reqq *q, bdb_req req)
200	{	325	{
201	int pri = req->pri;	326	int pri = req->pri;
202	req->next = 0;	327	req->next = 0;
203		328
204	if (q->qe[pri])	329	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	335	q->qe[pri] = q->qs[pri] = req;
211		336
212	return q->size++;	337	return q->size++;
213	}	338	}
214		339
215	aio_req reqq_shift (reqq *q)	340	bdb_req reqq_shift (reqq *q)
216	{	341	{
217	int pri;	342	int pri;
218		343
219	if (!q->size)	344	if (!q->size)
220	return 0;	345	return 0;
221		346
222	--q->size;	347	--q->size;
223		348
224	for (pri = NUM_PRI; pri--; )	349	for (pri = NUM_PRI; pri--; )
225	{	350	{
226	aio_req req = q->qs[pri];	351	bdb_req req = q->qs[pri];
227		352
228	if (req)	353	if (req)
229	{	354	{
230	if (!(q->qs[pri] = req->next))	355	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	356	q->qe[pri] = 0;
…		…
235	}	360	}
236		361
237	abort ();	362	abort ();
238	}	363	}
239		364
240	static int poll_cb ();	365	static int poll_cb (void);
241	static void req_free (aio_req req);	366	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);
243		367
244	static int req_invoke (aio_req req)	368	static int req_invoke (bdb_req req)
245	{	369	{
246	dSP;	370	switch (req->type)
247
248	if (SvOK (req->callback))
249	{	371	{
		372	case REQ_DB_CLOSE:
		373	SvREFCNT_dec (req->sv1);
		374	break;
		375
		376	case REQ_DB_GET:
		377	case REQ_DB_PGET:
		378	case REQ_C_GET:
		379	case REQ_C_PGET:
		380	case REQ_DB_PUT:
		381	case REQ_C_PUT:
		382	dbt_to_sv (req->sv1, &req->dbt1);
		383	dbt_to_sv (req->sv2, &req->dbt2);
		384	dbt_to_sv (req->sv3, &req->dbt3);
		385	break;
		386
		387	case REQ_DB_KEY_RANGE:
		388	{
		389	AV *av = newAV ();
		390
		391	av_push (av, newSVnv (req->key_range.less));
		392	av_push (av, newSVnv (req->key_range.equal));
		393	av_push (av, newSVnv (req->key_range.greater));
		394
		395	av = (AV *)newRV_noinc ((SV *)av);
		396
		397	SvREADONLY_off (req->sv1);
		398	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		399	SvREFCNT_dec (av);
		400	SvREFCNT_dec (req->sv1);
		401	}
		402	break;
		403
		404	#if DBVER >= 403
		405	case REQ_SEQ_GET:
		406	SvREADONLY_off (req->sv1);
		407
		408	if (sizeof (IV) > 4)
		409	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		410	else
		411	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		412
		413	SvREFCNT_dec (req->sv1);
		414	break;
		415	#endif
		416
		417	case REQ_ENV_LOG_ARCHIVE:
		418	{
		419	AV *av = newAV ();
		420	char **listp = (char **)req->buf1;
		421
		422	if (listp)
		423	while (*listp)
		424	av_push (av, newSVpv (*listp, 0)), ++listp;
		425
		426	av = (AV *)newRV_noinc ((SV *)av);
		427
		428	SvREADONLY_off (req->sv1);
		429	sv_setsv_mg (req->sv1, (SV *)av);
		430	SvREFCNT_dec (av);
		431	SvREFCNT_dec (req->sv1);
		432	}
		433	break;
		434	}
		435
		436	errno = req->result;
		437
		438	if (req->callback)
		439	{
		440	dSP;
		441
250	ENTER;	442	ENTER;
251	SAVETMPS;	443	SAVETMPS;
252	PUSHMARK (SP);	444	PUSHMARK (SP);
253	EXTEND (SP, 1);
254
255	switch (req->type)
256	{
257	}
258		445
259	PUTBACK;	446	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	447	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	448	SPAGAIN;
262		449
263	FREETMPS;	450	FREETMPS;
264	LEAVE;	451	LEAVE;
		452
		453	return !SvTRUE (ERRSV);
265	}	454	}
266		455
267	return !SvTRUE (ERRSV);	456	return 1;
268	}	457	}
269		458
270	static void req_free (aio_req req)	459	static void req_free (bdb_req req)
271	{	460	{
		461	SvREFCNT_dec (req->callback);
		462
		463	SvREFCNT_dec (req->rsv1);
		464	SvREFCNT_dec (req->rsv2);
		465
272	free (req->buf1);	466	free (req->buf1);
273	free (req->buf2);	467	free (req->buf2);
		468	free (req->buf3);
		469
274	Safefree (req);	470	Safefree (req);
275	}	471	}
276		472
277	static void *aio_proc(void *arg);	473	static void
		474	create_respipe (void)
		475	{
		476	if (s_epipe_renew (&respipe))
		477	croak ("BDB: unable to create event pipe");
		478	}
		479
		480	static void bdb_request (bdb_req req);
		481	X_THREAD_PROC (bdb_proc);
278		482
279	static void start_thread (void)	483	static void start_thread (void)
280	{	484	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	485	worker *wrk = calloc (1, sizeof (worker));
285		486
286	if (!wrk)	487	if (!wrk)
287	croak ("unable to allocate worker thread data");	488	croak ("unable to allocate worker thread data");
288		489
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);	490	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	491	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	492	{
302	wrk->prev = &wrk_first;	493	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	494	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	495	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	496	wrk_first.next = wrk;
306	++started;	497	++started;
307	}	498	}
308	else	499	else
309	free (wrk);	500	free (wrk);
310		501
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	502	X_UNLOCK (wrklock);
313	}	503	}
314		504
315	static void maybe_start_thread ()	505	static void maybe_start_thread (void)
316	{	506	{
317	if (get_nthreads () >= wanted)	507	if (get_nthreads () >= wanted)
318	return;	508	return;
319		509
320	/* todo: maybe use idle here, but might be less exact */	510	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	512	return;
323		513
324	start_thread ();	514	start_thread ();
325	}	515	}
326		516
327	static void req_send (aio_req req)	517	static void req_send (bdb_req req)
328	{	518	{
		519	SV *wait_callback = 0;
		520
		521	if (on_next_submit)
		522	{
		523	dSP;
		524	SV *cb = sv_2mortal (on_next_submit);
		525
		526	on_next_submit = 0;
		527
		528	PUSHMARK (SP);
		529	PUTBACK;
		530	call_sv (cb, G_DISCARD | G_EVAL);
		531	SPAGAIN;
		532	}
		533
		534	// synthesize callback if none given
		535	if (!req->callback)
		536	{
		537	if (SvOK (prepare_cb))
		538	{
		539	int count;
		540
		541	dSP;
		542	PUSHMARK (SP);
		543	PUTBACK;
		544	count = call_sv (prepare_cb, G_ARRAY);
		545	SPAGAIN;
		546
		547	if (count != 2)
		548	croak ("sync prepare callback must return exactly two values\n");
		549
		550	wait_callback = POPs;
		551	req->callback = SvREFCNT_inc (POPs);
		552	}
		553	else
		554	{
		555	// execute request synchronously
		556	bdb_request (req);
		557	req_invoke (req);
		558	req_free (req);
		559	return;
		560	}
		561	}
		562
329	++nreqs;	563	++nreqs;
330		564
331	LOCK (reqlock);	565	X_LOCK (reqlock);
332	++nready;	566	++nready;
333	reqq_push (&req_queue, req);	567	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	568	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	569	X_UNLOCK (reqlock);
336		570
337	maybe_start_thread ();	571	maybe_start_thread ();
		572
		573	if (wait_callback)
		574	{
		575	dSP;
		576	PUSHMARK (SP);
		577	PUTBACK;
		578	call_sv (wait_callback, G_DISCARD);
		579	}
338	}	580	}
339		581
340	static void end_thread (void)	582	static void end_thread (void)
341	{	583	{
342	aio_req req;	584	bdb_req req = calloc (1, sizeof (bdb_cb));
343
344	Newz (0, req, 1, aio_cb);
345		585
346	req->type = REQ_QUIT;	586	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	587	req->pri = PRI_MAX + PRI_BIAS;
348		588
349	LOCK (reqlock);	589	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	590	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	591	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	592	X_UNLOCK (reqlock);
353		593
354	LOCK (wrklock);	594	X_LOCK (wrklock);
355	--started;	595	--started;
356	UNLOCK (wrklock);	596	X_UNLOCK (wrklock);
357	}	597	}
358		598
359	static void set_max_idle (int nthreads)	599	static void set_max_idle (int nthreads)
360	{	600	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	601	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	602	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	603	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	604	}
365		605
366	static void min_parallel (int nthreads)	606	static void min_parallel (int nthreads)
367	{	607	{
368	if (wanted < nthreads)	608	if (wanted < nthreads)
…		…
376		616
377	while (started > wanted)	617	while (started > wanted)
378	end_thread ();	618	end_thread ();
379	}	619	}
380		620
381	static void poll_wait ()	621	static void poll_wait (void)
382	{	622	{
383	fd_set rfd;
384
385	while (nreqs)	623	while (nreqs)
386	{	624	{
387	int size;	625	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	626	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	627	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	628	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		629
392	if (size)	630	if (size)
393	return;	631	return;
394		632
395	maybe_start_thread ();	633	maybe_start_thread ();
396		634
397	FD_ZERO(&rfd);	635	s_epipe_wait (&respipe);
398	FD_SET(respipe [0], &rfd);
399
400	select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	636	}
402	}	637	}
403		638
404	static int poll_cb ()	639	static int poll_cb (void)
405	{	640	{
406	dSP;	641	dSP;
407	int count = 0;	642	int count = 0;
408	int maxreqs = max_poll_reqs;	643	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	644	int do_croak = 0;
410	struct timeval tv_start, tv_now;	645	struct timeval tv_start, tv_now;
411	aio_req req;	646	bdb_req req;
412		647
413	if (max_poll_time)	648	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	649	gettimeofday (&tv_start, 0);
415		650
416	for (;;)	651	for (;;)
417	{	652	{
418	for (;;)	653	for (;;)
419	{	654	{
420	maybe_start_thread ();	655	maybe_start_thread ();
421		656
422	LOCK (reslock);	657	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	658	req = reqq_shift (&res_queue);
424		659
425	if (req)	660	if (req)
426	{	661	{
427	--npending;	662	--npending;
428		663
429	if (!res_queue.size)	664	if (!res_queue.size)
430	{
431	/* read any signals sent by the worker threads */	665	/* read any signals sent by the worker threads */
432	char buf [4];	666	s_epipe_drain (&respipe);
433	while (read (respipe [0], buf, 4) == 4)
434	;
435	}
436	}	667	}
437		668
438	UNLOCK (reslock);	669	X_UNLOCK (reslock);
439		670
440	if (!req)	671	if (!req)
441	break;	672	break;
442		673
443	--nreqs;	674	--nreqs;
…		…
473	}	704	}
474		705
475	return count;	706	return count;
476	}	707	}
477		708
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	/*****************************************************************************/	709	/*****************************************************************************/
491		710
492	static void *aio_proc (void *thr_arg)	711	static void
		712	bdb_request (bdb_req req)
493	{	713	{
		714	switch (req->type)
		715	{
		716	case REQ_ENV_OPEN:
		717	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		718	break;
		719
		720	case REQ_ENV_CLOSE:
		721	req->result = req->env->close (req->env, req->uint1);
		722	break;
		723
		724	case REQ_ENV_TXN_CHECKPOINT:
		725	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		726	break;
		727
		728	case REQ_ENV_LOCK_DETECT:
		729	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		730	break;
		731
		732	case REQ_ENV_MEMP_SYNC:
		733	req->result = req->env->memp_sync (req->env, 0);
		734	break;
		735
		736	case REQ_ENV_MEMP_TRICKLE:
		737	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		738	break;
		739
		740	case REQ_ENV_DBREMOVE:
		741	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		742	break;
		743
		744	case REQ_ENV_DBRENAME:
		745	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		746	break;
		747
		748	case REQ_DB_OPEN:
		749	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		750	break;
		751
		752	case REQ_DB_CLOSE:
		753	req->result = req->db->close (req->db, req->uint1);
		754	break;
		755
		756	#if DBVER >= 404
		757	case REQ_DB_COMPACT:
		758	req->result = req->db->compact (req->db, req->txn, req->dbt1.data ? &req->dbt1 : 0, req->dbt2.data ? &req->dbt2 : 0, 0, req->uint1, 0);
		759	break;
		760	#endif
		761
		762	case REQ_DB_SYNC:
		763	req->result = req->db->sync (req->db, req->uint1);
		764	break;
		765
		766	case REQ_DB_VERIFY:
		767	req->result = req->db->verify (req->db, req->buf1, req->buf2, 0, req->uint1);
		768	break;
		769
		770	case REQ_DB_UPGRADE:
		771	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		772	break;
		773
		774	case REQ_DB_PUT:
		775	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		776	break;
		777
		778	#if DBVER >= 406
		779	case REQ_DB_EXISTS:
		780	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		781	break;
		782	#endif
		783	case REQ_DB_GET:
		784	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		785	break;
		786
		787	case REQ_DB_PGET:
		788	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		789	break;
		790
		791	case REQ_DB_DEL:
		792	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		793	break;
		794
		795	case REQ_DB_KEY_RANGE:
		796	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		797	break;
		798
		799	case REQ_TXN_COMMIT:
		800	req->result = req->txn->commit (req->txn, req->uint1);
		801	break;
		802
		803	case REQ_TXN_ABORT:
		804	req->result = req->txn->abort (req->txn);
		805	break;
		806
		807	case REQ_TXN_FINISH:
		808	if (req->txn->flags & TXN_DEADLOCK)
		809	{
		810	req->result = req->txn->abort (req->txn);
		811	if (!req->result)
		812	req->result = DB_LOCK_DEADLOCK;
		813	}
		814	else
		815	req->result = req->txn->commit (req->txn, req->uint1);
		816	break;
		817
		818	case REQ_C_CLOSE:
		819	req->result = req->dbc->c_close (req->dbc);
		820	break;
		821
		822	case REQ_C_COUNT:
		823	{
		824	db_recno_t recno;
		825	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		826	req->uv1 = recno;
		827	}
		828	break;
		829
		830	case REQ_C_PUT:
		831	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		832	break;
		833
		834	case REQ_C_GET:
		835	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		836	break;
		837
		838	case REQ_C_PGET:
		839	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		840	break;
		841
		842	case REQ_C_DEL:
		843	req->result = req->dbc->c_del (req->dbc, req->uint1);
		844	break;
		845
		846	#if DBVER >= 403
		847	case REQ_SEQ_OPEN:
		848	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		849	break;
		850
		851	case REQ_SEQ_CLOSE:
		852	req->result = req->seq->close (req->seq, req->uint1);
		853	break;
		854
		855	case REQ_SEQ_GET:
		856	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		857	break;
		858
		859	case REQ_SEQ_REMOVE:
		860	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		861	break;
		862	#endif
		863
		864	case REQ_ENV_LOG_ARCHIVE:
		865	{
		866	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		867	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		868	req->buf1 = (char *)listp;
		869	}
		870	break;
		871
		872	default:
		873	req->result = ENOSYS;
		874	break;
		875	}
		876
		877	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		878	req->txn->flags |= TXN_DEADLOCK;
		879	}
		880
		881	X_THREAD_PROC (bdb_proc)
		882	{
494	aio_req req;	883	bdb_req req;
495	struct timespec ts;	884	struct timespec ts;
496	worker *self = (worker *)thr_arg;	885	worker *self = (worker *)thr_arg;
497		886
498	/* try to distribute timeouts somewhat evenly */	887	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	888	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		889
502	for (;;)	890	for (;;)
503	{	891	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	892	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		893
506	LOCK (reqlock);	894	X_LOCK (reqlock);
507		895
508	for (;;)	896	for (;;)
509	{	897	{
510	self->req = req = reqq_shift (&req_queue);	898	self->req = req = reqq_shift (&req_queue);
511		899
512	if (req)	900	if (req)
513	break;	901	break;
514		902
515	++idle;	903	++idle;
516		904
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	905	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	906	== ETIMEDOUT)
519	{	907	{
520	if (idle > max_idle)	908	if (idle > max_idle)
521	{	909	{
522	--idle;	910	--idle;
523	UNLOCK (reqlock);	911	X_UNLOCK (reqlock);
524	LOCK (wrklock);	912	X_LOCK (wrklock);
525	--started;	913	--started;
526	UNLOCK (wrklock);	914	X_UNLOCK (wrklock);
527	goto quit;	915	goto quit;
528	}	916	}
529		917
530	/* we are allowed to idle, so do so without any timeout */	918	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	919	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	920	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	921	}
534		922
535	--idle;	923	--idle;
536	}	924	}
537		925
538	--nready;	926	--nready;
539		927
540	UNLOCK (reqlock);	928	X_UNLOCK (reqlock);
541
542	errno = 0; /* strictly unnecessary */
543		929
544	switch (req->type)	930	if (req->type == REQ_QUIT)
545	{	931	{
546	case REQ_QUIT:	932	X_LOCK (reslock);
		933	free (req);
		934	self->req = 0;
		935	X_UNLOCK (reslock);
		936
547	goto quit;	937	goto quit;
548
549	default:
550	//req->result = ENOSYS;
551	break;
552	}	938	}
553		939
554	//req->errorno = errno;	940	bdb_request (req);
555		941
556	LOCK (reslock);	942	X_LOCK (reslock);
557		943
558	++npending;	944	++npending;
559		945
560	if (!reqq_push (&res_queue, req))	946	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	947	s_epipe_signal (&respipe);
562	write (respipe [1], &respipe, 1);
563		948
564	self->req = 0;	949	self->req = 0;
565	worker_clear (self);	950	worker_clear (self);
566		951
567	UNLOCK (reslock);	952	X_UNLOCK (reslock);
568	}	953	}
569		954
570	quit:	955	quit:
571	LOCK (wrklock);	956	X_LOCK (wrklock);
572	worker_free (self);	957	worker_free (self);
573	UNLOCK (wrklock);	958	X_UNLOCK (wrklock);
574		959
575	return 0;	960	return 0;
576	}	961	}
577		962
578	/*****************************************************************************/	963	/*****************************************************************************/
579		964
580	static void atfork_prepare (void)	965	static void atfork_prepare (void)
581	{	966	{
582	LOCK (wrklock);	967	X_LOCK (wrklock);
583	LOCK (reqlock);	968	X_LOCK (reqlock);
584	LOCK (reslock);	969	X_LOCK (reslock);
585	}	970	}
586		971
587	static void atfork_parent (void)	972	static void atfork_parent (void)
588	{	973	{
589	UNLOCK (reslock);	974	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	975	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	976	X_UNLOCK (wrklock);
592	}	977	}
593		978
594	static void atfork_child (void)	979	static void atfork_child (void)
595	{	980	{
596	aio_req prv;	981	bdb_req prv;
597		982
598	while (prv = reqq_shift (&req_queue))	983	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	984	req_free (prv);
600		985
601	while (prv = reqq_shift (&res_queue))	986	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	1001	idle = 0;
617	nreqs = 0;	1002	nreqs = 0;
618	nready = 0;	1003	nready = 0;
619	npending = 0;	1004	npending = 0;
620		1005
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	1006	create_respipe ();
624		1007
625	atfork_parent ();	1008	atfork_parent ();
626	}	1009	}
627		1010
628	#define dREQ(reqtype) \	1011	#define dREQ(reqtype,rsvcnt) \
629	aio_req req; \	1012	bdb_req req; \
630	int req_pri = next_pri; \	1013	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	1014	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	1015	\
633	if (SvOK (callback) && !SvROK (callback)) \	1016	if (callback && SvOK (callback)) \
634	croak ("callback must be undef or of reference type"); \	1017	croak ("callback has illegal type or extra arguments"); \
635	\	1018	\
636	Newz (0, req, 1, aio_cb); \	1019	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	1020	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	1021	croak ("out of memory during bdb_req allocation"); \
639	\	1022	\
640	req->callback = newSVsv (callback); \	1023	req->callback = SvREFCNT_inc (cb); \
641	req->type = (reqtype); \	1024	req->type = (reqtype); \
642	req->pri = req_pri	1025	req->pri = req_pri; \
		1026	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1027	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1028	(void)0;
643		1029
644	#define REQ_SEND \	1030	#define REQ_SEND \
645	req_send (req)	1031	req_send (req)
646		1032
647	#define SvPTR(var, arg, type, class) \	1033	#define SvPTR(var, arg, type, stash, class, nullok) \
648	if (!SvOK (arg)) \	1034	if (!SvOK (arg)) \
		1035	{ \
		1036	if (nullok != 1) \
		1037	croak (# var " must be a " # class " object, not undef"); \
		1038	\
649	(var) = 0; \	1039	(var) = 0; \
650	else if (sv_derived_from ((arg), # class)) \	1040	} \
		1041	else if (SvSTASH (SvRV (arg)) == stash || sv_derived_from ((arg), # class)) \
651	{ \	1042	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	1043	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	1044	(var) = INT2PTR (type, tmp); \
		1045	if (!var && nullok != 2) \
		1046	croak (# var " is not a valid " # class " object anymore"); \
654	} \	1047	} \
655	else \	1048	else \
656	Perl_croak (# var " is not of type " # type)	1049	croak (# var " is not of type " # class);
657		1050
		1051	#define ARG_MUTABLE(name) \
		1052	if (SvREADONLY (name)) \
		1053	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1054
		1055	static SV *
		1056	newSVptr (void *ptr, HV *stash)
		1057	{
		1058	SV *rv = NEWSV (0, 0);
		1059	sv_upgrade (rv, SVt_PVMG);
		1060	sv_setiv (rv, PTR2IV (ptr));
		1061
		1062	return sv_bless (newRV_noinc (rv), stash);
		1063	}
		1064
		1065	static void
		1066	ptr_nuke (SV *sv)
		1067	{
		1068	assert (SvROK (sv));
		1069	sv_setiv (SvRV (sv), 0);
		1070	}
		1071
		1072	static int
		1073	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1074	{
		1075	if (*mg->mg_ptr == '!') // should always be the case
		1076	if (-30999 <= errno && errno <= -30800)
		1077	{
		1078	sv_setnv (sv, (NV)errno);
		1079	sv_setpv (sv, db_strerror (errno));
		1080	SvNOK_on (sv); /* what a wonderful hack! */
		1081	// ^^^ copied from perl sources
		1082	return 0;
		1083	}
		1084
		1085	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1086	}
		1087
		1088	static MGVTBL vtbl_errno;
		1089
		1090	// this wonderful hack :( patches perl's $! variable to support our errno values
		1091	static void
		1092	patch_errno (void)
		1093	{
		1094	SV *sv;
		1095	MAGIC *mg;
		1096
		1097	if (!(sv = get_sv ("!", 1)))
		1098	return;
		1099
		1100	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1101	return;
		1102
		1103	if (mg->mg_virtual != &PL_vtbl_sv)
		1104	return;
		1105
		1106	vtbl_errno = PL_vtbl_sv;
		1107	vtbl_errno.svt_get = errno_get;
		1108	mg->mg_virtual = &vtbl_errno;
		1109	}
		1110
		1111	#if __GNUC__ >= 4
		1112	# define noinline __attribute__ ((noinline))
		1113	#else
		1114	# define noinline
		1115	#endif
		1116
		1117	static noinline SV *
		1118	pop_callback (I32 *ritems, SV *sv)
		1119	{
		1120	if (SvROK (sv))
		1121	{
		1122	HV *st;
		1123	GV *gvp;
		1124	CV *cv;
		1125	const char *name;
		1126
		1127	/* forgive me */
		1128	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1129	&& (st = SvSTASH (SvRV (sv)))
		1130	&& (name = HvNAME_get (st))
		1131	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1132	return 0;
		1133
		1134	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1135	{
		1136	--*ritems;
		1137	return (SV *)cv;
		1138	}
		1139	}
		1140
		1141	return 0;
		1142	}
		1143
		1144	/*****************************************************************************/
		1145
		1146	#if 0
		1147	static int
		1148	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1149	{
		1150	ssize_t size1 = dbt1->size;
		1151	ssize_t size2 = dbt2->size;
		1152	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1153	size1 <= size2 ? size1 : size2);
		1154
		1155	if (res)
		1156	return res;
		1157	else if (size1 - size2)
		1158	return size1 - size2;
		1159	else
		1160	return 0;
		1161	}
		1162
		1163	static size_t
		1164	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1165	{
		1166	ssize_t size1 = dbt1->size;
		1167	ssize_t size2 = dbt2->size;
		1168	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1169	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1170	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1171
		1172	while (p1 < pe)
		1173	if (*p1++ != *p2++)
		1174	return p1 - (u_int8_t *)dbt1->data - 1;
		1175
		1176	if (size1 < size2) return size1 + 1;
		1177	if (size1 > size2) return size2 + 1;
		1178
		1179	return size1;
		1180	}
		1181	#endif
		1182
		1183	/*****************************************************************************/
		1184
		1185	/* stupid windows defines CALLBACK as well */
		1186	#undef CALLBACK
		1187	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1188
658	MODULE = BDB PACKAGE = BDB	1189	MODULE = BDB PACKAGE = BDB
659		1190
660	PROTOTYPES: ENABLE	1191	PROTOTYPES: ENABLE
661		1192
662	BOOT:	1193	BOOT:
663	{	1194	{
664	HV *stash = gv_stashpv ("BDB", 1);
665
666	static const struct {	1195	static const struct {
667	const char *name;	1196	const char *name;
668	IV iv;	1197	IV iv;
669	} *civ, const_iv[] = {	1198	} *civ, const_iv[] = {
670	#define const_iv(name) { # name, (IV)DB_ ## name },	1199	#define const_iv(name) { # name, (IV)DB_ ## name },
		1200	#if DBVER <= 408
671	const_iv (RPCCLIENT)	1201	const_iv (RPCCLIENT)
		1202	#endif
672	const_iv (INIT_CDB)	1203	const_iv (INIT_CDB)
673	const_iv (INIT_LOCK)	1204	const_iv (INIT_LOCK)
674	const_iv (INIT_LOG)	1205	const_iv (INIT_LOG)
675	const_iv (INIT_MPOOL)	1206	const_iv (INIT_MPOOL)
676	const_iv (INIT_REP)	1207	const_iv (INIT_REP)
677	const_iv (INIT_TXN)	1208	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1209	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1210	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1211	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1212	const_iv (CREATE)
		1213	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1214	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1215	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1216	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1217	const_iv (PRIVATE)
686	const_iv (REGISTER)
687	const_iv (SYSTEM_MEM)	1218	const_iv (SYSTEM_MEM)
688	const_iv (AUTO_COMMIT)	1219	const_iv (AUTO_COMMIT)
689	const_iv (CDB_ALLDB)	1220	const_iv (CDB_ALLDB)
690	const_iv (DIRECT_DB)	1221	const_iv (DIRECT_DB)
691	const_iv (DIRECT_LOG)
692	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1222	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1223	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1224	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1225	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1226	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1227	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1228	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1229	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1230	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1231	const_iv (TXN_WRITE_NOSYNC)
		1232	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1233	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1234	const_iv (ENCRYPT_AES)
		1235	#if DBVER < 408
709	const_iv (XA_CREATE)	1236	const_iv (XA_CREATE)
		1237	#endif
710	const_iv (BTREE)	1238	const_iv (BTREE)
711	const_iv (HASH)	1239	const_iv (HASH)
712	const_iv (QUEUE)	1240	const_iv (QUEUE)
713	const_iv (RECNO)	1241	const_iv (RECNO)
714	const_iv (UNKNOWN)	1242	const_iv (UNKNOWN)
715	const_iv (EXCL)	1243	const_iv (EXCL)
716	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1244	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1245	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1246	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1247	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1248	const_iv (DUP)
723	const_iv (DUPSORT)	1249	const_iv (DUPSORT)
724	const_iv (RECNUM)	1250	//const_iv (RECNUM)
725	const_iv (RENUMBER)	1251	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1252	const_iv (REVSPLITOFF)
727	const_iv (INORDER)
728	const_iv (CONSUME)	1253	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1254	const_iv (CONSUME_WAIT)
		1255	const_iv (GET_BOTH)
		1256	const_iv (GET_BOTH_RANGE)
		1257	//const_iv (SET_RECNO)
		1258	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1259	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1260	const_iv (JOIN_ITEM)
		1261	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1262	const_iv (RMW)
733		1263
734	const_iv (NOTFOUND)	1264	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1265	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1266	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1267	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1268	const_iv (RUNRECOVERY)
		1269	const_iv (OLD_VERSION)
		1270	const_iv (REP_HANDLE_DEAD)
		1271	const_iv (SECONDARY_BAD)
		1272
		1273	const_iv (APPEND)
		1274	const_iv (NODUPDATA)
		1275	const_iv (NOOVERWRITE)
		1276
		1277	const_iv (TXN_NOWAIT)
		1278	const_iv (TXN_SYNC)
		1279
		1280	const_iv (SET_LOCK_TIMEOUT)
		1281	const_iv (SET_TXN_TIMEOUT)
		1282
		1283	const_iv (FIRST)
		1284	const_iv (NEXT)
		1285	const_iv (NEXT_DUP)
		1286	const_iv (NEXT_NODUP)
		1287	const_iv (PREV)
		1288	const_iv (PREV_NODUP)
		1289	const_iv (SET)
		1290	const_iv (SET_RANGE)
		1291	const_iv (LAST)
		1292	const_iv (BEFORE)
		1293	const_iv (AFTER)
		1294	const_iv (CURRENT)
		1295	const_iv (KEYFIRST)
		1296	const_iv (KEYLAST)
		1297	const_iv (NODUPDATA)
		1298
		1299	const_iv (FORCE)
		1300
		1301	const_iv (LOCK_DEFAULT)
		1302	const_iv (LOCK_EXPIRE)
		1303	const_iv (LOCK_MAXLOCKS)
		1304	const_iv (LOCK_MINLOCKS)
		1305	const_iv (LOCK_MINWRITE)
		1306	const_iv (LOCK_OLDEST)
		1307	const_iv (LOCK_RANDOM)
		1308	const_iv (LOCK_YOUNGEST)
		1309
		1310	const_iv (DONOTINDEX)
		1311	const_iv (KEYEMPTY)
		1312	const_iv (KEYEXIST)
		1313	const_iv (LOCK_DEADLOCK)
		1314	const_iv (LOCK_NOTGRANTED)
		1315	const_iv (NOSERVER)
		1316	const_iv (NOSERVER_HOME)
		1317	const_iv (NOSERVER_ID)
		1318	const_iv (NOTFOUND)
		1319	const_iv (PAGE_NOTFOUND)
		1320	const_iv (REP_DUPMASTER)
		1321	const_iv (REP_HANDLE_DEAD)
		1322	const_iv (REP_HOLDELECTION)
		1323	const_iv (REP_ISPERM)
		1324	const_iv (REP_NEWMASTER)
		1325	const_iv (REP_NEWSITE)
		1326	const_iv (REP_NOTPERM)
		1327	const_iv (REP_UNAVAIL)
		1328	const_iv (RUNRECOVERY)
		1329	const_iv (SECONDARY_BAD)
		1330	const_iv (VERIFY_BAD)
		1331
		1332	const_iv (SALVAGE)
		1333	const_iv (AGGRESSIVE)
		1334	const_iv (PRINTABLE)
		1335	const_iv (NOORDERCHK)
		1336	const_iv (ORDERCHKONLY)
		1337
		1338	const_iv (ARCH_ABS)
		1339	const_iv (ARCH_DATA)
		1340	const_iv (ARCH_LOG)
		1341	const_iv (ARCH_REMOVE)
		1342
		1343	const_iv (VERB_DEADLOCK)
		1344	const_iv (VERB_RECOVERY)
		1345	const_iv (VERB_REPLICATION)
		1346	const_iv (VERB_WAITSFOR)
		1347
		1348	const_iv (VERSION_MAJOR)
		1349	const_iv (VERSION_MINOR)
		1350	const_iv (VERSION_PATCH)
		1351	const_iv (LOGVERSION)
		1352	const_iv (LOGOLDVER)
		1353	#if DBVER >= 403
		1354	const_iv (INORDER)
		1355	const_iv (LOCK_MAXWRITE)
		1356	const_iv (SEQ_DEC)
		1357	const_iv (SEQ_INC)
		1358	const_iv (SEQ_WRAP)
		1359	const_iv (BUFFER_SMALL)
		1360	const_iv (LOG_BUFFER_FULL)
		1361	const_iv (VERSION_MISMATCH)
		1362	#endif
		1363	#if DBVER >= 404
		1364	const_iv (REGISTER)
		1365	const_iv (DSYNC_DB)
		1366	const_iv (READ_COMMITTED)
		1367	const_iv (READ_UNCOMMITTED)
		1368	const_iv (REP_IGNORE)
		1369	const_iv (REP_LOCKOUT)
		1370	const_iv (REP_JOIN_FAILURE)
		1371	const_iv (FREE_SPACE)
		1372	const_iv (FREELIST_ONLY)
		1373	const_iv (VERB_REGISTER)
		1374	#endif
		1375	#if DBVER >= 405
		1376	const_iv (MULTIVERSION)
		1377	const_iv (TXN_SNAPSHOT)
		1378	#endif
		1379	#if DBVER >= 406
		1380	const_iv (PREV_DUP)
		1381	const_iv (PRIORITY_UNCHANGED)
		1382	const_iv (PRIORITY_VERY_LOW)
		1383	const_iv (PRIORITY_LOW)
		1384	const_iv (PRIORITY_DEFAULT)
		1385	const_iv (PRIORITY_HIGH)
		1386	const_iv (PRIORITY_VERY_HIGH)
		1387	const_iv (IGNORE_LEASE)
		1388	#endif
		1389	#if DBVER >= 407
		1390	//const_iv (MULTIPLE_KEY)
		1391	const_iv (LOG_DIRECT)
		1392	const_iv (LOG_DSYNC)
		1393	const_iv (LOG_AUTO_REMOVE)
		1394	const_iv (LOG_IN_MEMORY)
		1395	const_iv (LOG_ZERO)
		1396	#else
		1397	const_iv (DIRECT_LOG)
		1398	const_iv (LOG_AUTOREMOVE)
		1399	# if DBVER >= 403
		1400	const_iv (DSYNC_LOG)
		1401	const_iv (LOG_INMEMORY)
		1402	# endif
		1403	#if DBVER >= 408
		1404	const_iv (LOGVERSION_LATCHING)
		1405	#endif
		1406	#endif
739	};	1407	};
740		1408
		1409	bdb_stash = gv_stashpv ("BDB" , 1);
		1410	bdb_env_stash = gv_stashpv ("BDB::Env" , 1);
		1411	bdb_txn_stash = gv_stashpv ("BDB::Txn" , 1);
		1412	bdb_cursor_stash = gv_stashpv ("BDB::Cursor" , 1);
		1413	bdb_db_stash = gv_stashpv ("BDB::Db" , 1);
		1414	bdb_sequence_stash = gv_stashpv ("BDB::Sequence", 1);
		1415
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1416	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1417	newCONSTSUB (bdb_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
743		1418
744	create_pipe ();	1419	prepare_cb = &PL_sv_undef;
		1420
		1421	{
		1422	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1423	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1424
		1425	newCONSTSUB (bdb_stash, "VERSION_v", newSVpvn (vstring, 3));
		1426	}
		1427
		1428	newCONSTSUB (bdb_stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1429
		1430	create_respipe ();
		1431
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1432	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1433	patch_errno ();
746	}	1434	}
747		1435
748	void	1436	void
749	max_poll_reqs (int nreqs)	1437	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1438	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1467	max_outstanding = maxreqs;
780	OUTPUT:	1468	OUTPUT:
781	RETVAL	1469	RETVAL
782		1470
783	int	1471	int
784	bdbreq_pri (int pri = 0)	1472	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1473	PROTOTYPE: ;$
786	CODE:	1474	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1475	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1476	if (items > 0)
789	{	1477	{
…		…
793	}	1481	}
794	OUTPUT:	1482	OUTPUT:
795	RETVAL	1483	RETVAL
796		1484
797	void	1485	void
798	bdbreq_nice (int nice = 0)	1486	dbreq_nice (int nice = 0)
799	CODE:	1487	CODE:
800	nice = next_pri - nice;	1488	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1489	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1490	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1491	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1499	poll_wait ();
812	poll_cb ();	1500	poll_cb ();
813	}	1501	}
814		1502
815	int	1503	int
816	poll()	1504	poll ()
817	PROTOTYPE:	1505	PROTOTYPE:
818	CODE:	1506	CODE:
819	poll_wait ();	1507	poll_wait ();
820	RETVAL = poll_cb ();	1508	RETVAL = poll_cb ();
821	OUTPUT:	1509	OUTPUT:
822	RETVAL	1510	RETVAL
823		1511
824	int	1512	int
825	poll_fileno()	1513	poll_fileno ()
826	PROTOTYPE:	1514	PROTOTYPE:
827	CODE:	1515	CODE:
828	RETVAL = respipe [0];	1516	RETVAL = s_epipe_fd (&respipe);
829	OUTPUT:	1517	OUTPUT:
830	RETVAL	1518	RETVAL
831		1519
832	int	1520	int
833	poll_cb(...)	1521	poll_cb (...)
834	PROTOTYPE:	1522	PROTOTYPE:
835	CODE:	1523	CODE:
836	RETVAL = poll_cb ();	1524	RETVAL = poll_cb ();
837	OUTPUT:	1525	OUTPUT:
838	RETVAL	1526	RETVAL
839		1527
840	void	1528	void
841	poll_wait()	1529	poll_wait ()
842	PROTOTYPE:	1530	PROTOTYPE:
843	CODE:	1531	CODE:
844	poll_wait ();	1532	poll_wait ();
845		1533
846	int	1534	int
847	nreqs()	1535	nreqs ()
848	PROTOTYPE:	1536	PROTOTYPE:
849	CODE:	1537	CODE:
850	RETVAL = nreqs;	1538	RETVAL = nreqs;
851	OUTPUT:	1539	OUTPUT:
852	RETVAL	1540	RETVAL
853		1541
854	int	1542	int
855	nready()	1543	nready ()
856	PROTOTYPE:	1544	PROTOTYPE:
857	CODE:	1545	CODE:
858	RETVAL = get_nready ();	1546	RETVAL = get_nready ();
859	OUTPUT:	1547	OUTPUT:
860	RETVAL	1548	RETVAL
861		1549
862	int	1550	int
863	npending()	1551	npending ()
864	PROTOTYPE:	1552	PROTOTYPE:
865	CODE:	1553	CODE:
866	RETVAL = get_npending ();	1554	RETVAL = get_npending ();
867	OUTPUT:	1555	OUTPUT:
868	RETVAL	1556	RETVAL
869		1557
870	int	1558	int
871	nthreads()	1559	nthreads ()
872	PROTOTYPE:	1560	PROTOTYPE:
873	CODE:	1561	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1562	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1563	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1564	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1565	OUTPUT:
878	RETVAL	1566	RETVAL
879		1567
		1568	SV *
		1569	set_sync_prepare (SV *cb)
		1570	PROTOTYPE: &
		1571	CODE:
		1572	RETVAL = prepare_cb;
		1573	prepare_cb = newSVsv (cb);
		1574	OUTPUT:
		1575	RETVAL
		1576
		1577	char *
		1578	strerror (int errorno = errno)
		1579	PROTOTYPE: ;$
		1580	CODE:
		1581	RETVAL = db_strerror (errorno);
		1582	OUTPUT:
		1583	RETVAL
		1584
		1585	void _on_next_submit (SV *cb)
		1586	CODE:
		1587	SvREFCNT_dec (on_next_submit);
		1588	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1589
880	DB_ENV *	1590	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1591	db_env_create (U32 env_flags = 0)
882	CODE:	1592	CODE:
883	{	1593	{
884	int err = db_env_create (&RETVAL, env_flags);	1594	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1595	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1596	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1597
		1598	if (0)
		1599	{
		1600	RETVAL->set_errcall (RETVAL, debug_errcall);
		1601	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1602	}
		1603	}
		1604	OUTPUT:
		1605	RETVAL
		1606
889	void	1607	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1608	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1609	PREINIT:
		1610	CALLBACK
891	CODE:	1611	CODE:
892	{	1612	{
893	dREQ (REQ_ENV_OPEN);	1613	dREQ (REQ_ENV_OPEN, 1);
894	req->env = env;	1614	req->env = env;
895	req->uint1 = open_flags;	1615	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1616	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1617	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1618	REQ_SEND;
899	}	1619	}
900		1620
901	void	1621	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1622	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1623	PREINIT:
		1624	CALLBACK
903	CODE:	1625	CODE:
904	{	1626	{
905	dREQ (REQ_ENV_CLOSE);	1627	dREQ (REQ_ENV_CLOSE, 0);
		1628	ptr_nuke (ST (0));
906	req->env = env;	1629	req->env = env;
907	req->uint1 = flags;	1630	req->uint1 = flags;
908	REQ_SEND;	1631	REQ_SEND;
909	}	1632	}
910		1633
		1634	void
		1635	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1636	PREINIT:
		1637	CALLBACK
		1638	CODE:
		1639	{
		1640	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1641	req->env = env;
		1642	req->uint1 = kbyte;
		1643	req->int1 = min;
		1644	req->uint2 = flags;
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1650	PREINIT:
		1651	CALLBACK
		1652	CODE:
		1653	{
		1654	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1655	req->env = env;
		1656	req->uint1 = flags;
		1657	req->uint2 = atype;
		1658	/* req->int2 = 0; dummy */
		1659	REQ_SEND;
		1660	}
		1661
		1662	void
		1663	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1664	PREINIT:
		1665	CALLBACK
		1666	CODE:
		1667	{
		1668	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1669	req->env = env;
		1670	REQ_SEND;
		1671	}
		1672
		1673	void
		1674	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1675	PREINIT:
		1676	CALLBACK
		1677	CODE:
		1678	{
		1679	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1680	req->env = env;
		1681	req->int1 = percent;
		1682	REQ_SEND;
		1683	}
		1684
		1685	void
		1686	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1687	PREINIT:
		1688	CALLBACK
		1689	CODE:
		1690	{
		1691	dREQ (REQ_ENV_DBREMOVE, 2);
		1692	req->env = env;
		1693	req->buf1 = strdup_ornull (file);
		1694	req->buf2 = strdup_ornull (database);
		1695	req->uint1 = flags;
		1696	REQ_SEND;
		1697	}
		1698
		1699	void
		1700	db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
		1701	PREINIT:
		1702	CALLBACK
		1703	CODE:
		1704	{
		1705	dREQ (REQ_ENV_DBRENAME, 2);
		1706	req->env = env;
		1707	req->buf1 = strdup_ornull (file);
		1708	req->buf2 = strdup_ornull (database);
		1709	req->buf3 = strdup_ornull (newname);
		1710	req->uint1 = flags;
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
		1715	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1716	PREINIT:
		1717	CALLBACK
		1718	CODE:
		1719	{
		1720	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1721	req->sv1 = SvREFCNT_inc (listp);
		1722	req->env = env;
		1723	req->uint1 = flags;
		1724	REQ_SEND;
		1725	}
		1726
911	DB *	1727	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1728	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1729	CODE:
914	{	1730	{
915	int err = db_create (&RETVAL, env, flags);	1731	errno = db_create (&RETVAL, env, flags);
916	if (err)	1732	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1733	croak ("db_create: %s", db_strerror (errno));
918	}
919		1734
		1735	if (RETVAL)
		1736	RETVAL->app_private = (void *)newSVsv (ST (0));
		1737	}
		1738	OUTPUT:
		1739	RETVAL
		1740
920	void	1741	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)	1742	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1743	PREINIT:
		1744	CALLBACK
922	CODE:	1745	CODE:
923	{	1746	{
924	dREQ (REQ_DB_OPEN);	1747	dREQ (REQ_DB_OPEN, 2);
925	req->db = db;	1748	req->db = db;
926	req->txn = txnid;	1749	req->txn = txnid;
927	req->buf1 = strdup (file);	1750	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1751	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1752	req->int1 = type;
930	req->uint1 = flags;	1753	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1754	req->int2 = mode;
932	REQ_SEND;	1755	REQ_SEND;
933	}	1756	}
934		1757
935	void	1758	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1759	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1760	PREINIT:
		1761	CALLBACK
937	CODE:	1762	CODE:
938	{	1763	{
939	dREQ (REQ_DB_CLOSE);	1764	dREQ (REQ_DB_CLOSE, 0);
		1765	ptr_nuke (ST (0));
940	req->db = db;	1766	req->db = db;
941	req->uint1 = flags;	1767	req->uint1 = flags;
		1768	req->sv1 = (SV *)db->app_private;
		1769	REQ_SEND;
		1770	}
		1771
		1772	#if DBVER >= 404
		1773
		1774	void
		1775	db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = 0)
		1776	PREINIT:
		1777	CALLBACK
		1778	CODE:
		1779	{
		1780	dREQ (REQ_DB_COMPACT, 2);
		1781	req->db = db;
		1782	req->txn = txn;
		1783	if (start) sv_to_dbt (&req->dbt1, start);
		1784	if (stop ) sv_to_dbt (&req->dbt2, stop );
		1785	req->uint1 = flags;
		1786	REQ_SEND;
		1787	}
		1788
		1789	#endif
		1790
		1791	void
		1792	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1793	PREINIT:
		1794	CALLBACK
		1795	CODE:
		1796	{
		1797	dREQ (REQ_DB_SYNC, 1);
		1798	req->db = db;
		1799	req->uint1 = flags;
		1800	REQ_SEND;
		1801	}
		1802
		1803	void
		1804	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1805	PREINIT:
		1806	CALLBACK
		1807	CODE:
		1808	{
		1809	dREQ (REQ_DB_VERIFY, 1);
		1810	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
		1811	req->db = db;
		1812	req->buf1 = strdup (file);
		1813	req->buf2 = strdup_ornull (database);
		1814	req->uint1 = flags;
		1815	REQ_SEND;
		1816	}
		1817
		1818	void
		1819	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1820	PREINIT:
		1821	CALLBACK
		1822	CODE:
		1823	{
		1824	dREQ (REQ_DB_UPGRADE, 1);
		1825	req->db = db;
		1826	req->buf1 = strdup (file);
		1827	req->uint1 = flags;
		1828	REQ_SEND;
		1829	}
		1830
		1831	void
		1832	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1833	PREINIT:
		1834	CALLBACK
		1835	CODE:
		1836	{
		1837	dREQ (REQ_DB_KEY_RANGE, 2);
		1838	req->db = db;
		1839	req->txn = txn;
		1840	sv_to_dbt (&req->dbt1, key);
		1841	req->uint1 = flags;
		1842	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1843	REQ_SEND;
		1844	}
		1845
		1846	void
		1847	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1848	PREINIT:
		1849	CALLBACK
		1850	CODE:
		1851	{
		1852	dREQ (REQ_DB_PUT, 2);
		1853	req->db = db;
		1854	req->txn = txn;
		1855	sv_to_dbt (&req->dbt1, key);
		1856	sv_to_dbt (&req->dbt2, data);
		1857	req->uint1 = flags;
		1858	REQ_SEND;
		1859	}
		1860
		1861	#if DBVER >= 406
		1862
		1863	void
		1864	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1865	PREINIT:
		1866	CALLBACK
		1867	CODE:
		1868	{
		1869	dREQ (REQ_DB_EXISTS, 2);
		1870	req->db = db;
		1871	req->txn = txn;
		1872	req->uint1 = flags;
		1873	sv_to_dbt (&req->dbt1, key);
		1874	REQ_SEND;
		1875	}
		1876
		1877	#endif
		1878
		1879	void
		1880	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1881	PREINIT:
		1882	CALLBACK
		1883	CODE:
		1884	{
		1885	//TODO: key is somtimesmutable
		1886	dREQ (REQ_DB_GET, 2);
		1887	req->db = db;
		1888	req->txn = txn;
		1889	req->uint1 = flags;
		1890	sv_to_dbt (&req->dbt1, key);
		1891	req->dbt3.flags = DB_DBT_MALLOC;
		1892	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1893	REQ_SEND;
		1894	}
		1895
		1896	void
		1897	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1898	PREINIT:
		1899	CALLBACK
		1900	CODE:
		1901	{
		1902	//TODO: key is somtimesmutable
		1903	dREQ (REQ_DB_PGET, 2);
		1904	req->db = db;
		1905	req->txn = txn;
		1906	req->uint1 = flags;
		1907
		1908	sv_to_dbt (&req->dbt1, key);
		1909
		1910	req->dbt2.flags = DB_DBT_MALLOC;
		1911	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1912
		1913	req->dbt3.flags = DB_DBT_MALLOC;
		1914	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1915	REQ_SEND;
		1916	}
		1917
		1918	void
		1919	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1920	PREINIT:
		1921	CALLBACK
		1922	CODE:
		1923	{
		1924	dREQ (REQ_DB_DEL, 2);
		1925	req->db = db;
		1926	req->txn = txn;
		1927	req->uint1 = flags;
		1928	sv_to_dbt (&req->dbt1, key);
		1929	REQ_SEND;
		1930	}
		1931
		1932	void
		1933	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1934	PREINIT:
		1935	CALLBACK
		1936	CODE:
		1937	{
		1938	dREQ (REQ_TXN_COMMIT, 0);
		1939	ptr_nuke (ST (0));
		1940	req->txn = txn;
		1941	req->uint1 = flags;
		1942	REQ_SEND;
		1943	}
		1944
		1945	void
		1946	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1947	PREINIT:
		1948	CALLBACK
		1949	CODE:
		1950	{
		1951	dREQ (REQ_TXN_ABORT, 0);
		1952	ptr_nuke (ST (0));
		1953	req->txn = txn;
		1954	REQ_SEND;
		1955	}
		1956
		1957	void
		1958	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1959	PREINIT:
		1960	CALLBACK
		1961	CODE:
		1962	{
		1963	dREQ (REQ_TXN_FINISH, 0);
		1964	ptr_nuke (ST (0));
		1965	req->txn = txn;
		1966	req->uint1 = flags;
		1967	REQ_SEND;
		1968	}
		1969
		1970	void
		1971	db_c_close (DBC *dbc, SV *callback = 0)
		1972	PREINIT:
		1973	CALLBACK
		1974	CODE:
		1975	{
		1976	dREQ (REQ_C_CLOSE, 0);
		1977	ptr_nuke (ST (0));
		1978	req->dbc = dbc;
		1979	REQ_SEND;
		1980	}
		1981
		1982	void
		1983	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1984	PREINIT:
		1985	CALLBACK
		1986	CODE:
		1987	{
		1988	dREQ (REQ_C_COUNT, 1);
		1989	req->dbc = dbc;
		1990	req->sv1 = SvREFCNT_inc (count);
		1991	REQ_SEND;
		1992	}
		1993
		1994	void
		1995	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1996	PREINIT:
		1997	CALLBACK
		1998	CODE:
		1999	{
		2000	dREQ (REQ_C_PUT, 1);
		2001	req->dbc = dbc;
		2002	sv_to_dbt (&req->dbt1, key);
		2003	sv_to_dbt (&req->dbt2, data);
		2004	req->uint1 = flags;
		2005	REQ_SEND;
		2006	}
		2007
		2008	void
		2009	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2010	PREINIT:
		2011	CALLBACK
		2012	CODE:
		2013	{
		2014	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2015	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2016	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2017	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2018	"key",
		2019	"BDB::db_c_get");
		2020
		2021	{
		2022	dREQ (REQ_C_GET, 1);
		2023	req->dbc = dbc;
		2024	req->uint1 = flags;
		2025	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2026	sv_to_dbt (&req->dbt1, key);
		2027	else
		2028	{
		2029	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2030	sv_to_dbt (&req->dbt1, key);
		2031	else
		2032	req->dbt1.flags = DB_DBT_MALLOC;
		2033
		2034	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2035	}
		2036
		2037	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2038	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2039	sv_to_dbt (&req->dbt3, data);
		2040	else
		2041	req->dbt3.flags = DB_DBT_MALLOC;
		2042
		2043	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
942	REQ_SEND;	2044	REQ_SEND;
		2045	}
943	}	2046	}
		2047
		2048	void
		2049	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2050	PREINIT:
		2051	CALLBACK
		2052	CODE:
		2053	{
		2054	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2055	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2056	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2057	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2058	"key",
		2059	"BDB::db_c_pget");
		2060
		2061	{
		2062	dREQ (REQ_C_PGET, 1);
		2063	req->dbc = dbc;
		2064	req->uint1 = flags;
		2065	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2066	sv_to_dbt (&req->dbt1, key);
		2067	else
		2068	{
		2069	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2070	sv_to_dbt (&req->dbt1, key);
		2071	else
		2072	req->dbt1.flags = DB_DBT_MALLOC;
		2073
		2074	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2075	}
		2076
		2077	req->dbt2.flags = DB_DBT_MALLOC;
		2078	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2079
		2080	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2081	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2082	sv_to_dbt (&req->dbt3, data);
		2083	else
		2084	req->dbt3.flags = DB_DBT_MALLOC;
		2085
		2086	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2087	REQ_SEND;
		2088	}
		2089	}
		2090
		2091	void
		2092	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2093	PREINIT:
		2094	CALLBACK
		2095	CODE:
		2096	{
		2097	dREQ (REQ_C_DEL, 1);
		2098	req->dbc = dbc;
		2099	req->uint1 = flags;
		2100	REQ_SEND;
		2101	}
		2102
		2103
		2104	#if DBVER >= 403
		2105
		2106	void
		2107	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2108	PREINIT:
		2109	CALLBACK
		2110	CODE:
		2111	{
		2112	dREQ (REQ_SEQ_OPEN, 2);
		2113	req->seq = seq;
		2114	req->txn = txnid;
		2115	req->uint1 = flags | DB_THREAD;
		2116	sv_to_dbt (&req->dbt1, key);
		2117	REQ_SEND;
		2118	}
		2119
		2120	void
		2121	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2122	PREINIT:
		2123	CALLBACK
		2124	CODE:
		2125	{
		2126	dREQ (REQ_SEQ_CLOSE, 0);
		2127	ptr_nuke (ST (0));
		2128	req->seq = seq;
		2129	req->uint1 = flags;
		2130	REQ_SEND;
		2131	}
		2132
		2133	void
		2134	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2135	PREINIT:
		2136	CALLBACK
		2137	CODE:
		2138	{
		2139	dREQ (REQ_SEQ_GET, 2);
		2140	req->seq = seq;
		2141	req->txn = txnid;
		2142	req->int1 = delta;
		2143	req->uint1 = flags;
		2144	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2145	REQ_SEND;
		2146	}
		2147
		2148	void
		2149	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2150	PREINIT:
		2151	CALLBACK
		2152	CODE:
		2153	{
		2154	dREQ (REQ_SEQ_REMOVE, 2);
		2155	req->seq = seq;
		2156	req->txn = txnid;
		2157	req->uint1 = flags;
		2158	REQ_SEND;
		2159	}
		2160
		2161	#endif
944		2162
945		2163
946	MODULE = BDB PACKAGE = BDB::Env	2164	MODULE = BDB PACKAGE = BDB::Env
947		2165
		2166	void
		2167	DESTROY (DB_ENV_ornuked *env)
		2168	CODE:
		2169	if (env)
		2170	env->close (env, 0);
		2171
		2172	int set_data_dir (DB_ENV *env, const char *dir)
		2173	CODE:
		2174	RETVAL = env->set_data_dir (env, dir);
		2175	OUTPUT:
		2176	RETVAL
		2177
		2178	int set_tmp_dir (DB_ENV *env, const char *dir)
		2179	CODE:
		2180	RETVAL = env->set_tmp_dir (env, dir);
		2181	OUTPUT:
		2182	RETVAL
		2183
		2184	int set_lg_dir (DB_ENV *env, const char *dir)
		2185	CODE:
		2186	RETVAL = env->set_lg_dir (env, dir);
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	int set_shm_key (DB_ENV *env, long shm_key)
		2191	CODE:
		2192	RETVAL = env->set_shm_key (env, shm_key);
		2193	OUTPUT:
		2194	RETVAL
		2195
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2196	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2197	CODE:
		2198	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2199	OUTPUT:
		2200	RETVAL
949		2201
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	2202	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2203	CODE:
		2204	RETVAL = env->set_flags (env, flags, onoff);
		2205	OUTPUT:
		2206	RETVAL
951		2207
		2208	#if DBVER >= 407
		2209
		2210	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2211	CODE:
		2212	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2213	OUTPUT:
		2214	RETVAL
		2215
		2216	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2217	CODE:
		2218	RETVAL = env->log_set_config (env, flags, onoff);
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	#endif
		2223
		2224
		2225	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2226	CODE:
		2227	env->set_errfile (env, errfile);
		2228
		2229	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2230	CODE:
		2231	env->set_msgfile (env, msgfile);
		2232
		2233	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2234	CODE:
		2235	RETVAL = env->set_verbose (env, which, onoff);
		2236	OUTPUT:
		2237	RETVAL
		2238
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	2239	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2240	CODE:
		2241	RETVAL = env->set_encrypt (env, password, flags);
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2246	CODE:
		2247	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2248	OUTPUT:
		2249	RETVAL
		2250
		2251	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2252	CODE:
		2253	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2254	OUTPUT:
		2255	RETVAL
		2256
		2257	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2258	CODE:
		2259	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2260	OUTPUT:
		2261	RETVAL
		2262
		2263	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2264	CODE:
		2265	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2266	OUTPUT:
		2267	RETVAL
		2268
		2269	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2270	CODE:
		2271	RETVAL = env->set_lk_detect (env, detect);
		2272	OUTPUT:
		2273	RETVAL
		2274
		2275	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2276	CODE:
		2277	RETVAL = env->set_lk_max_lockers (env, max);
		2278	OUTPUT:
		2279	RETVAL
		2280
		2281	int set_lk_max_locks (DB_ENV *env, U32 max)
		2282	CODE:
		2283	RETVAL = env->set_lk_max_locks (env, max);
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	int set_lk_max_objects (DB_ENV *env, U32 max)
		2288	CODE:
		2289	RETVAL = env->set_lk_max_objects (env, max);
		2290	OUTPUT:
		2291	RETVAL
		2292
		2293	int set_lg_bsize (DB_ENV *env, U32 max)
		2294	CODE:
		2295	RETVAL = env->set_lg_bsize (env, max);
		2296	OUTPUT:
		2297	RETVAL
		2298
		2299	int set_lg_max (DB_ENV *env, U32 max)
		2300	CODE:
		2301	RETVAL = env->set_lg_max (env, max);
		2302	OUTPUT:
		2303	RETVAL
		2304
		2305	#if DBVER >= 404
		2306
		2307	int mutex_set_max (DB_ENV *env, U32 max)
		2308	CODE:
		2309	RETVAL = env->mutex_set_max (env, max);
		2310	OUTPUT:
		2311	RETVAL
		2312
		2313	int mutex_set_increment (DB_ENV *env, U32 increment)
		2314	CODE:
		2315	RETVAL = env->mutex_set_increment (env, increment);
		2316	OUTPUT:
		2317	RETVAL
		2318
		2319	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2320	CODE:
		2321	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2322	OUTPUT:
		2323	RETVAL
		2324
		2325	int mutex_set_align (DB_ENV *env, U32 align)
		2326	CODE:
		2327	RETVAL = env->mutex_set_align (env, align);
		2328	OUTPUT:
		2329	RETVAL
		2330
		2331	#endif
		2332
		2333	DB_TXN *
		2334	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2335	CODE:
		2336	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2337	if (errno)
		2338	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2339	OUTPUT:
		2340	RETVAL
		2341
		2342	#if DBVER >= 405
		2343
		2344	DB_TXN *
		2345	cdsgroup_begin (DB_ENV *env)
		2346	CODE:
		2347	errno = env->cdsgroup_begin (env, &RETVAL);
		2348	if (errno)
		2349	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2350	OUTPUT:
		2351	RETVAL
		2352
		2353	#endif
953		2354
954	MODULE = BDB PACKAGE = BDB::Db	2355	MODULE = BDB PACKAGE = BDB::Db
955		2356
		2357	void
		2358	DESTROY (DB_ornuked *db)
		2359	CODE:
		2360	if (db)
		2361	{
		2362	SV *env = (SV *)db->app_private;
		2363	db->close (db, 0);
		2364	SvREFCNT_dec (env);
		2365	}
		2366
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2367	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2368	CODE:
		2369	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2370	OUTPUT:
		2371	RETVAL
957		2372
		2373	int set_pagesize (DB *db, U32 pagesize)
		2374	CODE:
		2375	RETVAL = db->set_pagesize (db, pagesize);
		2376	OUTPUT:
		2377	RETVAL
		2378
958	int set_flags (DB *env, U32 flags, int onoff)	2379	int set_flags (DB *db, U32 flags)
		2380	CODE:
		2381	RETVAL = db->set_flags (db, flags);
		2382	OUTPUT:
		2383	RETVAL
959		2384
960	int set_encrypt (DB *db, const char *password, U32 flags)	2385	int set_encrypt (DB *db, const char *password, U32 flags)
		2386	CODE:
		2387	RETVAL = db->set_encrypt (db, password, flags);
		2388	OUTPUT:
		2389	RETVAL
961		2390
962	int set_lorder (DB *db, int lorder)	2391	int set_lorder (DB *db, int lorder)
963		2392	CODE:
		2393	RETVAL = db->set_lorder (db, lorder);
		2394	OUTPUT:
		2395	RETVAL
964		2396
965	int set_bt_minkey (DB *db, U32 minkey)	2397	int set_bt_minkey (DB *db, U32 minkey)
		2398	CODE:
		2399	RETVAL = db->set_bt_minkey (db, minkey);
		2400	OUTPUT:
		2401	RETVAL
966		2402
967	int set_re_delim(DB *db, int delim);	2403	int set_re_delim (DB *db, int delim)
		2404	CODE:
		2405	RETVAL = db->set_re_delim (db, delim);
		2406	OUTPUT:
		2407	RETVAL
968		2408
969	int set_re_pad (DB *db, int re_pad)	2409	int set_re_pad (DB *db, int re_pad)
		2410	CODE:
		2411	RETVAL = db->set_re_pad (db, re_pad);
		2412	OUTPUT:
		2413	RETVAL
970		2414
971	int set_re_source (DB *db, char *source)	2415	int set_re_source (DB *db, char *source)
		2416	CODE:
		2417	RETVAL = db->set_re_source (db, source);
		2418	OUTPUT:
		2419	RETVAL
972		2420
973	int set_re_len (DB *db, U32 re_len)	2421	int set_re_len (DB *db, U32 re_len)
		2422	CODE:
		2423	RETVAL = db->set_re_len (db, re_len);
		2424	OUTPUT:
		2425	RETVAL
974		2426
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2427	int set_h_ffactor (DB *db, U32 h_ffactor)
		2428	CODE:
		2429	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2430	OUTPUT:
		2431	RETVAL
976		2432
977	int set_h_nelem (DB *db, U32 h_nelem)	2433	int set_h_nelem (DB *db, U32 h_nelem)
		2434	CODE:
		2435	RETVAL = db->set_h_nelem (db, h_nelem);
		2436	OUTPUT:
		2437	RETVAL
978		2438
979	int set_q_extentsize (DB *db, U32 extentsize)	2439	int set_q_extentsize (DB *db, U32 extentsize)
		2440	CODE:
		2441	RETVAL = db->set_q_extentsize (db, extentsize);
		2442	OUTPUT:
		2443	RETVAL
980		2444
		2445	DBC *
		2446	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2447	CODE:
		2448	errno = db->cursor (db, txn, &RETVAL, flags);
		2449	if (errno)
		2450	croak ("DB->cursor: %s", db_strerror (errno));
		2451	OUTPUT:
		2452	RETVAL
981		2453
		2454	#if DBVER >= 403
		2455
		2456	DB_SEQUENCE *
		2457	sequence (DB *db, U32 flags = 0)
		2458	CODE:
		2459	{
		2460	errno = db_sequence_create (&RETVAL, db, flags);
		2461	if (errno)
		2462	croak ("db_sequence_create: %s", db_strerror (errno));
		2463	}
		2464	OUTPUT:
		2465	RETVAL
		2466
		2467	#endif
		2468
		2469
		2470	MODULE = BDB PACKAGE = BDB::Txn
		2471
		2472	void
		2473	DESTROY (DB_TXN_ornuked *txn)
		2474	CODE:
		2475	if (txn)
		2476	txn->abort (txn);
		2477
		2478	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2479	CODE:
		2480	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2481	OUTPUT:
		2482	RETVAL
		2483
		2484	int failed (DB_TXN *txn)
		2485	CODE:
		2486	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2487	OUTPUT:
		2488	RETVAL
		2489
		2490
		2491	MODULE = BDB PACKAGE = BDB::Cursor
		2492
		2493	void
		2494	DESTROY (DBC_ornuked *dbc)
		2495	CODE:
		2496	if (dbc)
		2497	dbc->c_close (dbc);
		2498
		2499	#if DBVER >= 406
		2500
		2501	int set_priority (DBC *dbc, int priority)
		2502	CODE:
		2503	dbc->set_priority (dbc, priority);
		2504
		2505	#endif
		2506
		2507	#if DBVER >= 403
		2508
		2509	MODULE = BDB PACKAGE = BDB::Sequence
		2510
		2511	void
		2512	DESTROY (DB_SEQUENCE_ornuked *seq)
		2513	CODE:
		2514	if (seq)
		2515	seq->close (seq, 0);
		2516
		2517	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2518	CODE:
		2519	RETVAL = seq->initial_value (seq, value);
		2520	OUTPUT:
		2521	RETVAL
		2522
		2523	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2524	CODE:
		2525	RETVAL = seq->set_cachesize (seq, size);
		2526	OUTPUT:
		2527	RETVAL
		2528
		2529	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2530	CODE:
		2531	RETVAL = seq->set_flags (seq, flags);
		2532	OUTPUT:
		2533	RETVAL
		2534
		2535	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2536	CODE:
		2537	RETVAL = seq->set_range (seq, min, max);
		2538	OUTPUT:
		2539	RETVAL
		2540
		2541	#endif
		2542
		2543

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