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Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.72 by root, Fri Dec 4 15:04:06 2009 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/select.h>
24	#include <sys/types.h>	25	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	26	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	27	#include <fcntl.h>
29	#include <signal.h>	28
		29	#ifndef _WIN32
		30	# include <sys/time.h>
		31	# include <unistd.h>
		32	#endif
		33
30	#include <sched.h>	34	#include <db.h>
		35
		36	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		37	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		38	#endif
31		39
32	/* number of seconds after which idle threads exit */	40	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	41	#define IDLE_TIMEOUT 10
34		42
35	/* wether word reads are potentially non-atomic.	43	typedef SV SV_mutable;
36	* this is conservatice, likely most arches this runs	44
37	* on have atomic word read/writes.	45	typedef DB_ENV DB_ENV_ornull;
38	*/	46	typedef DB_TXN DB_TXN_ornull;
39	#ifndef WORDACCESS_UNSAFE	47	typedef DBC DBC_ornull;
40	# if __i386 || __x86_64	48	typedef DB DB_ornull;
41	# define WORDACCESS_UNSAFE 0	49
42	# else	50	typedef DB_ENV DB_ENV_ornuked;
43	# define WORDACCESS_UNSAFE 1	51	typedef DB_TXN DB_TXN_ornuked;
		52	typedef DBC DBC_ornuked;
		53	typedef DB DB_ornuked;
		54
		55	#if DB_VERSION_MINOR >= 3
		56	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		57	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
44	# endif	58	#endif
45	#endif
46		59
47	typedef SV SV8; /* byte-sv, used for argument-checking */	60	typedef char *bdb_filename;
48		61
		62	static SV *prepare_cb;
		63
		64	static HV
		65	*bdb_stash,
		66	*bdb_env_stash,
		67	*bdb_txn_stash,
		68	*bdb_cursor_stash,
		69	*bdb_db_stash,
		70	*bdb_sequence_stash;
		71
		72	#if DB_VERSION_MINOR >= 6
		73	# define c_close close
		74	# define c_count count
		75	# define c_del del
		76	# define c_dup dup
		77	# define c_get get
		78	# define c_pget pget
		79	# define c_put put
		80	#endif
		81
		82	static char *
		83	get_bdb_filename (SV *sv)
		84	{
		85	if (!SvOK (sv))
		86	return 0;
		87
		88	#if _WIN32
		89	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		90	{
		91	STRLEN len;
		92	char *src = SvPVbyte (sv, len);
		93	SV *t1 = sv_newmortal ();
		94	SV *t2 = sv_newmortal ();
		95
		96	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		97	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		98
		99	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		100	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		101	SvPOK_only (t2);
		102	SvPVX (t2)[len] = 0;
		103	SvCUR_set (t2, len);
		104
		105	return SvPVX (t2);
		106	}
		107	#else
		108	return SvPVbyte_nolen (sv);
		109	#endif
		110	}
		111
		112	static void
		113	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		114	{
		115	printf ("err[%s]\n", msg);
		116	}
		117
		118	static void
		119	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		120	{
		121	printf ("msg[%s]\n", msg);
		122	}
		123
		124	static char *
		125	strdup_ornull (const char *s)
		126	{
		127	return s ? strdup (s) : 0;
		128	}
		129
		130	static void
		131	sv_to_dbt (DBT *dbt, SV *sv)
		132	{
		133	STRLEN len;
		134	char *data = SvPVbyte (sv, len);
		135
		136	dbt->data = malloc (len);
		137	memcpy (dbt->data, data, len);
		138	dbt->size = len;
		139	dbt->flags = DB_DBT_REALLOC;
		140	}
		141
		142	static void
		143	dbt_to_sv (SV *sv, DBT *dbt)
		144	{
		145	if (sv)
		146	{
		147	SvREADONLY_off (sv);
		148
		149	if (dbt->data)
		150	sv_setpvn_mg (sv, dbt->data, dbt->size);
		151	else
		152	sv_setsv_mg (sv, &PL_sv_undef);
		153
		154	SvREFCNT_dec (sv);
		155	}
		156
		157	free (dbt->data);
		158	}
		159
49	enum {	160	enum {
50	REQ_QUIT,	161	REQ_QUIT,
		162	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		163	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		164	REQ_ENV_LOG_ARCHIVE,
		165	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_VERIFY, REQ_DB_UPGRADE,
		166	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		167	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		168	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		169	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	170	};
52		171
53	#define AIO_CB \	172	typedef struct bdb_cb
		173	{
54	struct aio_cb *volatile next; \	174	struct bdb_cb *volatile next;
55	SV *callback; \	175	SV *callback;
56	int type, pri	176	int type, pri, result;
57		177
58	typedef struct aio_cb	178	DB_ENV *env;
59	{	179	DB *db;
60	AIO_CB;	180	DB_TXN *txn;
61	} aio_cb;	181	DBC *dbc;
62		182
		183	UV uv1;
		184	int int1, int2;
		185	U32 uint1, uint2;
		186	char *buf1, *buf2, *buf3;
		187	SV *sv1, *sv2, *sv3;
		188
		189	DBT dbt1, dbt2, dbt3;
		190	DB_KEY_RANGE key_range;
		191	#if DB_VERSION_MINOR >= 3
		192	DB_SEQUENCE *seq;
		193	db_seq_t seq_t;
		194	#endif
		195
		196	SV *rsv1, *rsv2; // keep some request objects alive
		197	} bdb_cb;
		198
63	typedef aio_cb *aio_req;	199	typedef bdb_cb *bdb_req;
64		200
65	enum {	201	enum {
66	PRI_MIN = -4,	202	PRI_MIN = -4,
67	PRI_MAX = 4,	203	PRI_MAX = 4,
68		204
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	207	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	208	};
73		209
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	210	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		211
		212	static SV *on_next_submit;
		213
76	static unsigned int max_poll_time = 0;	214	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	215	static unsigned int max_poll_reqs = 0;
78		216
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	217	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	218	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		223
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		225
88	static unsigned int started, idle, wanted;	226	static unsigned int started, idle, wanted;
89		227
90	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
91	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
92	#else
93	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
94	#endif
95
96	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
97	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
98
99	/* worker threads management */	228	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
101		230
102	typedef struct worker {	231	typedef struct worker {
103	/* locked by wrklock */	232	/* locked by wrklock */
104	struct worker *prev, *next;	233	struct worker *prev, *next;
105		234
106	pthread_t tid;	235	thread_t tid;
107		236
108	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	238	bdb_req req; /* currently processed request */
110	void *dbuf;	239	void *dbuf;
111	DIR *dirp;	240	DIR *dirp;
112	} worker;	241	} worker;
113		242
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	243	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	255	}
127		256
128	static volatile unsigned int nreqs, nready, npending;	257	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	258	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	259	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	260	static s_epipe respipe;
132		261
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	262	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	263	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	264	static cond_t reqwait = X_COND_INIT;
136		265
137	#if WORDACCESS_UNSAFE	266	#if WORDACCESS_UNSAFE
138		267
139	static unsigned int get_nready ()	268	static unsigned int get_nready (void)
140	{	269	{
141	unsigned int retval;	270	unsigned int retval;
142		271
143	LOCK (reqlock);	272	X_LOCK (reqlock);
144	retval = nready;	273	retval = nready;
145	UNLOCK (reqlock);	274	X_UNLOCK (reqlock);
146		275
147	return retval;	276	return retval;
148	}	277	}
149		278
150	static unsigned int get_npending ()	279	static unsigned int get_npending (void)
151	{	280	{
152	unsigned int retval;	281	unsigned int retval;
153		282
154	LOCK (reslock);	283	X_LOCK (reslock);
155	retval = npending;	284	retval = npending;
156	UNLOCK (reslock);	285	X_UNLOCK (reslock);
157		286
158	return retval;	287	return retval;
159	}	288	}
160		289
161	static unsigned int get_nthreads ()	290	static unsigned int get_nthreads (void)
162	{	291	{
163	unsigned int retval;	292	unsigned int retval;
164		293
165	LOCK (wrklock);	294	X_LOCK (wrklock);
166	retval = started;	295	retval = started;
167	UNLOCK (wrklock);	296	X_UNLOCK (wrklock);
168		297
169	return retval;	298	return retval;
170	}	299	}
171		300
172	#else	301	#else
…		…
181	* a somewhat faster data structure might be nice, but	310	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	311	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	312	* per shift, the most expensive operation.
184	*/	313	*/
185	typedef struct {	314	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	315	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	316	int size;
188	} reqq;	317	} reqq;
189		318
190	static reqq req_queue;	319	static reqq req_queue;
191	static reqq res_queue;	320	static reqq res_queue;
192		321
193	int reqq_push (reqq *q, aio_req req)	322	int reqq_push (reqq *q, bdb_req req)
194	{	323	{
195	int pri = req->pri;	324	int pri = req->pri;
196	req->next = 0;	325	req->next = 0;
197		326
198	if (q->qe[pri])	327	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	333	q->qe[pri] = q->qs[pri] = req;
205		334
206	return q->size++;	335	return q->size++;
207	}	336	}
208		337
209	aio_req reqq_shift (reqq *q)	338	bdb_req reqq_shift (reqq *q)
210	{	339	{
211	int pri;	340	int pri;
212		341
213	if (!q->size)	342	if (!q->size)
214	return 0;	343	return 0;
215		344
216	--q->size;	345	--q->size;
217		346
218	for (pri = NUM_PRI; pri--; )	347	for (pri = NUM_PRI; pri--; )
219	{	348	{
220	aio_req req = q->qs[pri];	349	bdb_req req = q->qs[pri];
221		350
222	if (req)	351	if (req)
223	{	352	{
224	if (!(q->qs[pri] = req->next))	353	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	354	q->qe[pri] = 0;
…		…
229	}	358	}
230		359
231	abort ();	360	abort ();
232	}	361	}
233		362
234	static int poll_cb ();	363	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	364	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);
238		365
239	static int req_invoke (aio_req req)	366	static int req_invoke (bdb_req req)
240	{	367	{
241	dSP;	368	switch (req->type)
242
243	if (SvOK (req->callback))
244	{	369	{
		370	case REQ_DB_CLOSE:
		371	SvREFCNT_dec (req->sv1);
		372	break;
		373
		374	case REQ_DB_GET:
		375	case REQ_DB_PGET:
		376	case REQ_C_GET:
		377	case REQ_C_PGET:
		378	case REQ_DB_PUT:
		379	case REQ_C_PUT:
		380	dbt_to_sv (req->sv1, &req->dbt1);
		381	dbt_to_sv (req->sv2, &req->dbt2);
		382	dbt_to_sv (req->sv3, &req->dbt3);
		383	break;
		384
		385	case REQ_DB_KEY_RANGE:
		386	{
		387	AV *av = newAV ();
		388
		389	av_push (av, newSVnv (req->key_range.less));
		390	av_push (av, newSVnv (req->key_range.equal));
		391	av_push (av, newSVnv (req->key_range.greater));
		392
		393	av = (AV *)newRV_noinc ((SV *)av);
		394
		395	SvREADONLY_off (req->sv1);
		396	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		397	SvREFCNT_dec (av);
		398	SvREFCNT_dec (req->sv1);
		399	}
		400	break;
		401
		402	#if DB_VERSION_MINOR >= 3
		403	case REQ_SEQ_GET:
		404	SvREADONLY_off (req->sv1);
		405
		406	if (sizeof (IV) > 4)
		407	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		408	else
		409	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		410
		411	SvREFCNT_dec (req->sv1);
		412	break;
		413	#endif
		414
		415	case REQ_ENV_LOG_ARCHIVE:
		416	{
		417	AV *av = newAV ();
		418	char **listp = (char **)req->buf1;
		419
		420	if (listp)
		421	while (*listp)
		422	av_push (av, newSVpv (*listp, 0)), ++listp;
		423
		424	av = (AV *)newRV_noinc ((SV *)av);
		425
		426	SvREADONLY_off (req->sv1);
		427	sv_setsv_mg (req->sv1, (SV *)av);
		428	SvREFCNT_dec (av);
		429	SvREFCNT_dec (req->sv1);
		430	}
		431	break;
		432	}
		433
		434	errno = req->result;
		435
		436	if (req->callback)
		437	{
		438	dSP;
		439
245	ENTER;	440	ENTER;
246	SAVETMPS;	441	SAVETMPS;
247	PUSHMARK (SP);	442	PUSHMARK (SP);
248	EXTEND (SP, 1);
249
250	switch (req->type)
251	{
252	}
253		443
254	PUTBACK;	444	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	445	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	446	SPAGAIN;
257		447
258	FREETMPS;	448	FREETMPS;
259	LEAVE;	449	LEAVE;
		450
		451	return !SvTRUE (ERRSV);
260	}	452	}
261		453
262	return !SvTRUE (ERRSV);	454	return 1;
263	}	455	}
264		456
265	static void req_free (aio_req req)	457	static void req_free (bdb_req req)
266	{	458	{
		459	SvREFCNT_dec (req->callback);
		460
		461	SvREFCNT_dec (req->rsv1);
		462	SvREFCNT_dec (req->rsv2);
		463
		464	free (req->buf1);
		465	free (req->buf2);
		466	free (req->buf3);
		467
267	Safefree (req);	468	Safefree (req);
268	}	469	}
269		470
270	static void *aio_proc(void *arg);	471	static void
		472	create_respipe (void)
		473	{
		474	if (s_epipe_renew (&respipe))
		475	croak ("BDB: unable to create event pipe");
		476	}
		477
		478	static void bdb_request (bdb_req req);
		479	X_THREAD_PROC (bdb_proc);
271		480
272	static void start_thread (void)	481	static void start_thread (void)
273	{	482	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	483	worker *wrk = calloc (1, sizeof (worker));
278		484
279	if (!wrk)	485	if (!wrk)
280	croak ("unable to allocate worker thread data");	486	croak ("unable to allocate worker thread data");
281		487
282	pthread_attr_init (&attr);
283	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
284	#ifdef PTHREAD_SCOPE_PROCESS
285	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
286	#endif
287
288	sigfillset (&fullsigset);
289
290	LOCK (wrklock);	488	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	489	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	490	{
295	wrk->prev = &wrk_first;	491	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	492	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	493	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	494	wrk_first.next = wrk;
299	++started;	495	++started;
300	}	496	}
301	else	497	else
302	free (wrk);	498	free (wrk);
303		499
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	500	X_UNLOCK (wrklock);
306	}	501	}
307		502
308	static void maybe_start_thread ()	503	static void maybe_start_thread (void)
309	{	504	{
310	if (get_nthreads () >= wanted)	505	if (get_nthreads () >= wanted)
311	return;	506	return;
312		507
313	/* todo: maybe use idle here, but might be less exact */	508	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	510	return;
316		511
317	start_thread ();	512	start_thread ();
318	}	513	}
319		514
320	static void req_send (aio_req req)	515	static void req_send (bdb_req req)
321	{	516	{
		517	SV *wait_callback = 0;
		518
		519	if (on_next_submit)
		520	{
		521	dSP;
		522	SV *cb = sv_2mortal (on_next_submit);
		523
		524	on_next_submit = 0;
		525
		526	PUSHMARK (SP);
		527	PUTBACK;
		528	call_sv (cb, G_DISCARD | G_EVAL);
		529	SPAGAIN;
		530	}
		531
		532	// synthesize callback if none given
		533	if (!req->callback)
		534	{
		535	if (SvOK (prepare_cb))
		536	{
		537	int count;
		538
		539	dSP;
		540	PUSHMARK (SP);
		541	PUTBACK;
		542	count = call_sv (prepare_cb, G_ARRAY);
		543	SPAGAIN;
		544
		545	if (count != 2)
		546	croak ("sync prepare callback must return exactly two values\n");
		547
		548	wait_callback = POPs;
		549	req->callback = SvREFCNT_inc (POPs);
		550	}
		551	else
		552	{
		553	// execute request synchronously
		554	bdb_request (req);
		555	req_invoke (req);
		556	req_free (req);
		557	return;
		558	}
		559	}
		560
322	++nreqs;	561	++nreqs;
323		562
324	LOCK (reqlock);	563	X_LOCK (reqlock);
325	++nready;	564	++nready;
326	reqq_push (&req_queue, req);	565	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	566	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	567	X_UNLOCK (reqlock);
329		568
330	maybe_start_thread ();	569	maybe_start_thread ();
		570
		571	if (wait_callback)
		572	{
		573	dSP;
		574	PUSHMARK (SP);
		575	PUTBACK;
		576	call_sv (wait_callback, G_DISCARD);
		577	}
331	}	578	}
332		579
333	static void end_thread (void)	580	static void end_thread (void)
334	{	581	{
335	aio_req req;	582	bdb_req req = calloc (1, sizeof (bdb_cb));
336
337	Newz (0, req, 1, aio_cb);
338		583
339	req->type = REQ_QUIT;	584	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	585	req->pri = PRI_MAX + PRI_BIAS;
341		586
342	LOCK (reqlock);	587	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	588	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	589	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	590	X_UNLOCK (reqlock);
346		591
347	LOCK (wrklock);	592	X_LOCK (wrklock);
348	--started;	593	--started;
349	UNLOCK (wrklock);	594	X_UNLOCK (wrklock);
350	}	595	}
351		596
352	static void set_max_idle (int nthreads)	597	static void set_max_idle (int nthreads)
353	{	598	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	599	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	600	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	601	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	602	}
358		603
359	static void min_parallel (int nthreads)	604	static void min_parallel (int nthreads)
360	{	605	{
361	if (wanted < nthreads)	606	if (wanted < nthreads)
…		…
369		614
370	while (started > wanted)	615	while (started > wanted)
371	end_thread ();	616	end_thread ();
372	}	617	}
373		618
374	static void poll_wait ()	619	static void poll_wait (void)
375	{	620	{
376	fd_set rfd;
377
378	while (nreqs)	621	while (nreqs)
379	{	622	{
380	int size;	623	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	624	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	625	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	626	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		627
385	if (size)	628	if (size)
386	return;	629	return;
387		630
388	maybe_start_thread ();	631	maybe_start_thread ();
389		632
390	FD_ZERO(&rfd);	633	s_epipe_wait (&respipe);
391	FD_SET(respipe [0], &rfd);
392
393	select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	634	}
395	}	635	}
396		636
397	static int poll_cb ()	637	static int poll_cb (void)
398	{	638	{
399	dSP;	639	dSP;
400	int count = 0;	640	int count = 0;
401	int maxreqs = max_poll_reqs;	641	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	642	int do_croak = 0;
403	struct timeval tv_start, tv_now;	643	struct timeval tv_start, tv_now;
404	aio_req req;	644	bdb_req req;
405		645
406	if (max_poll_time)	646	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	647	gettimeofday (&tv_start, 0);
408		648
409	for (;;)	649	for (;;)
410	{	650	{
411	for (;;)	651	for (;;)
412	{	652	{
413	maybe_start_thread ();	653	maybe_start_thread ();
414		654
415	LOCK (reslock);	655	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	656	req = reqq_shift (&res_queue);
417		657
418	if (req)	658	if (req)
419	{	659	{
420	--npending;	660	--npending;
421		661
422	if (!res_queue.size)	662	if (!res_queue.size)
423	{
424	/* read any signals sent by the worker threads */	663	/* read any signals sent by the worker threads */
425	char buf [4];	664	s_epipe_drain (&respipe);
426	while (read (respipe [0], buf, 4) == 4)
427	;
428	}
429	}	665	}
430		666
431	UNLOCK (reslock);	667	X_UNLOCK (reslock);
432		668
433	if (!req)	669	if (!req)
434	break;	670	break;
435		671
436	--nreqs;	672	--nreqs;
…		…
466	}	702	}
467		703
468	return count;	704	return count;
469	}	705	}
470		706
471	static void create_pipe ()
472	{
473	if (pipe (respipe))
474	croak ("unable to initialize result pipe");
475
476	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
477	croak ("cannot set result pipe to nonblocking mode");
478
479	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	croak ("cannot set result pipe to nonblocking mode");
481	}
482
483	/*****************************************************************************/	707	/*****************************************************************************/
484		708
485	static void *aio_proc (void *thr_arg)	709	static void
		710	bdb_request (bdb_req req)
486	{	711	{
		712	switch (req->type)
		713	{
		714	case REQ_ENV_OPEN:
		715	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		716	break;
		717
		718	case REQ_ENV_CLOSE:
		719	req->result = req->env->close (req->env, req->uint1);
		720	break;
		721
		722	case REQ_ENV_TXN_CHECKPOINT:
		723	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		724	break;
		725
		726	case REQ_ENV_LOCK_DETECT:
		727	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		728	break;
		729
		730	case REQ_ENV_MEMP_SYNC:
		731	req->result = req->env->memp_sync (req->env, 0);
		732	break;
		733
		734	case REQ_ENV_MEMP_TRICKLE:
		735	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		736	break;
		737
		738	case REQ_ENV_DBREMOVE:
		739	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		740	break;
		741
		742	case REQ_ENV_DBRENAME:
		743	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		744	break;
		745
		746	case REQ_DB_OPEN:
		747	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		748	break;
		749
		750	case REQ_DB_CLOSE:
		751	req->result = req->db->close (req->db, req->uint1);
		752	break;
		753
		754	#if DB_VERSION_MINOR >= 4
		755	case REQ_DB_COMPACT:
		756	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);
		757	break;
		758	#endif
		759
		760	case REQ_DB_SYNC:
		761	req->result = req->db->sync (req->db, req->uint1);
		762	break;
		763
		764	case REQ_DB_VERIFY:
		765	req->result = req->db->verify (req->db, req->buf1, req->buf2, 0, req->uint1);
		766	break;
		767
		768	case REQ_DB_UPGRADE:
		769	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		770	break;
		771
		772	case REQ_DB_PUT:
		773	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		774	break;
		775
		776	#if DB_VERSION_MINOR >= 6
		777	case REQ_DB_EXISTS:
		778	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		779	break;
		780	#endif
		781	case REQ_DB_GET:
		782	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		783	break;
		784
		785	case REQ_DB_PGET:
		786	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		787	break;
		788
		789	case REQ_DB_DEL:
		790	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		791	break;
		792
		793	case REQ_DB_KEY_RANGE:
		794	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		795	break;
		796
		797	case REQ_TXN_COMMIT:
		798	req->result = req->txn->commit (req->txn, req->uint1);
		799	break;
		800
		801	case REQ_TXN_ABORT:
		802	req->result = req->txn->abort (req->txn);
		803	break;
		804
		805	case REQ_TXN_FINISH:
		806	if (req->txn->flags & TXN_DEADLOCK)
		807	{
		808	req->result = req->txn->abort (req->txn);
		809	if (!req->result)
		810	req->result = DB_LOCK_DEADLOCK;
		811	}
		812	else
		813	req->result = req->txn->commit (req->txn, req->uint1);
		814	break;
		815
		816	case REQ_C_CLOSE:
		817	req->result = req->dbc->c_close (req->dbc);
		818	break;
		819
		820	case REQ_C_COUNT:
		821	{
		822	db_recno_t recno;
		823	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		824	req->uv1 = recno;
		825	}
		826	break;
		827
		828	case REQ_C_PUT:
		829	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		830	break;
		831
		832	case REQ_C_GET:
		833	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		834	break;
		835
		836	case REQ_C_PGET:
		837	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		838	break;
		839
		840	case REQ_C_DEL:
		841	req->result = req->dbc->c_del (req->dbc, req->uint1);
		842	break;
		843
		844	#if DB_VERSION_MINOR >= 3
		845	case REQ_SEQ_OPEN:
		846	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		847	break;
		848
		849	case REQ_SEQ_CLOSE:
		850	req->result = req->seq->close (req->seq, req->uint1);
		851	break;
		852
		853	case REQ_SEQ_GET:
		854	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		855	break;
		856
		857	case REQ_SEQ_REMOVE:
		858	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		859	break;
		860	#endif
		861
		862	case REQ_ENV_LOG_ARCHIVE:
		863	{
		864	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		865	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		866	req->buf1 = (char *)listp;
		867	}
		868	break;
		869
		870	default:
		871	req->result = ENOSYS;
		872	break;
		873	}
		874
		875	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		876	req->txn->flags |= TXN_DEADLOCK;
		877	}
		878
		879	X_THREAD_PROC (bdb_proc)
		880	{
487	aio_req req;	881	bdb_req req;
488	struct timespec ts;	882	struct timespec ts;
489	worker *self = (worker *)thr_arg;	883	worker *self = (worker *)thr_arg;
490		884
491	/* try to distribute timeouts somewhat evenly */	885	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	886	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		887
495	for (;;)	888	for (;;)
496	{	889	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	890	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		891
499	LOCK (reqlock);	892	X_LOCK (reqlock);
500		893
501	for (;;)	894	for (;;)
502	{	895	{
503	self->req = req = reqq_shift (&req_queue);	896	self->req = req = reqq_shift (&req_queue);
504		897
505	if (req)	898	if (req)
506	break;	899	break;
507		900
508	++idle;	901	++idle;
509		902
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	903	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	904	== ETIMEDOUT)
512	{	905	{
513	if (idle > max_idle)	906	if (idle > max_idle)
514	{	907	{
515	--idle;	908	--idle;
516	UNLOCK (reqlock);	909	X_UNLOCK (reqlock);
517	LOCK (wrklock);	910	X_LOCK (wrklock);
518	--started;	911	--started;
519	UNLOCK (wrklock);	912	X_UNLOCK (wrklock);
520	goto quit;	913	goto quit;
521	}	914	}
522		915
523	/* we are allowed to idle, so do so without any timeout */	916	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	917	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	918	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	919	}
527		920
528	--idle;	921	--idle;
529	}	922	}
530		923
531	--nready;	924	--nready;
532		925
533	UNLOCK (reqlock);	926	X_UNLOCK (reqlock);
534
535	errno = 0; /* strictly unnecessary */
536		927
537	switch (req->type)	928	if (req->type == REQ_QUIT)
538	{	929	{
539	case REQ_QUIT:	930	X_LOCK (reslock);
		931	free (req);
		932	self->req = 0;
		933	X_UNLOCK (reslock);
		934
540	goto quit;	935	goto quit;
541
542	default:
543	//req->result = ENOSYS;
544	break;
545	}	936	}
546		937
547	//req->errorno = errno;	938	bdb_request (req);
548		939
549	LOCK (reslock);	940	X_LOCK (reslock);
550		941
551	++npending;	942	++npending;
552		943
553	if (!reqq_push (&res_queue, req))	944	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	945	s_epipe_signal (&respipe);
555	write (respipe [1], &respipe, 1);
556		946
557	self->req = 0;	947	self->req = 0;
558	worker_clear (self);	948	worker_clear (self);
559		949
560	UNLOCK (reslock);	950	X_UNLOCK (reslock);
561	}	951	}
562		952
563	quit:	953	quit:
564	LOCK (wrklock);	954	X_LOCK (wrklock);
565	worker_free (self);	955	worker_free (self);
566	UNLOCK (wrklock);	956	X_UNLOCK (wrklock);
567		957
568	return 0;	958	return 0;
569	}	959	}
570		960
571	/*****************************************************************************/	961	/*****************************************************************************/
572		962
573	static void atfork_prepare (void)	963	static void atfork_prepare (void)
574	{	964	{
575	LOCK (wrklock);	965	X_LOCK (wrklock);
576	LOCK (reqlock);	966	X_LOCK (reqlock);
577	LOCK (reslock);	967	X_LOCK (reslock);
578	}	968	}
579		969
580	static void atfork_parent (void)	970	static void atfork_parent (void)
581	{	971	{
582	UNLOCK (reslock);	972	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	973	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	974	X_UNLOCK (wrklock);
585	}	975	}
586		976
587	static void atfork_child (void)	977	static void atfork_child (void)
588	{	978	{
589	aio_req prv;	979	bdb_req prv;
590		980
591	while (prv = reqq_shift (&req_queue))	981	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	982	req_free (prv);
593		983
594	while (prv = reqq_shift (&res_queue))	984	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	999	idle = 0;
610	nreqs = 0;	1000	nreqs = 0;
611	nready = 0;	1001	nready = 0;
612	npending = 0;	1002	npending = 0;
613		1003
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	1004	create_respipe ();
617		1005
618	atfork_parent ();	1006	atfork_parent ();
619	}	1007	}
620		1008
621	#define dREQ \	1009	#define dREQ(reqtype,rsvcnt) \
622	aio_req req; \	1010	bdb_req req; \
623	int req_pri = next_pri; \	1011	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	1012	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	1013	\
626	if (SvOK (callback) && !SvROK (callback)) \	1014	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	1015	croak ("callback has illegal type or extra arguments"); \
628	\	1016	\
629	Newz (0, req, 1, aio_cb); \	1017	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	1018	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	1019	croak ("out of memory during bdb_req allocation"); \
632	\	1020	\
633	req->callback = newSVsv (callback); \	1021	req->callback = SvREFCNT_inc (cb); \
		1022	req->type = (reqtype); \
634	req->pri = req_pri	1023	req->pri = req_pri; \
		1024	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1025	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1026	(void)0;
635		1027
636	#define REQ_SEND \	1028	#define REQ_SEND \
637	req_send (req); \	1029	req_send (req)
		1030
		1031	#define SvPTR(var, arg, type, stash, class, nullok) \
		1032	if (!SvOK (arg)) \
		1033	{ \
		1034	if (nullok != 1) \
		1035	croak (# var " must be a " # class " object, not undef"); \
638	\	1036	\
639	if (GIMME_V != G_VOID) \	1037	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1038	} \
641		1039	else if (SvSTASH (SvRV (arg)) == stash || sv_derived_from ((arg), # class)) \
		1040	{ \
		1041	IV tmp = SvIV ((SV*) SvRV (arg)); \
		1042	(var) = INT2PTR (type, tmp); \
		1043	if (!var && nullok != 2) \
		1044	croak (# var " is not a valid " # class " object anymore"); \
		1045	} \
		1046	else \
		1047	croak (# var " is not of type " # class);
		1048
		1049	#define ARG_MUTABLE(name) \
		1050	if (SvREADONLY (name)) \
		1051	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1052
		1053	static SV *
		1054	newSVptr (void *ptr, HV *stash)
		1055	{
		1056	SV *rv = NEWSV (0, 0);
		1057	sv_upgrade (rv, SVt_PVMG);
		1058	sv_setiv (rv, PTR2IV (ptr));
		1059
		1060	return sv_bless (newRV_noinc (rv), stash);
		1061	}
		1062
		1063	static void
		1064	ptr_nuke (SV *sv)
		1065	{
		1066	assert (SvROK (sv));
		1067	sv_setiv (SvRV (sv), 0);
		1068	}
		1069
		1070	static int
		1071	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1072	{
		1073	if (*mg->mg_ptr == '!') // should always be the case
		1074	if (-30999 <= errno && errno <= -30800)
		1075	{
		1076	sv_setnv (sv, (NV)errno);
		1077	sv_setpv (sv, db_strerror (errno));
		1078	SvNOK_on (sv); /* what a wonderful hack! */
		1079	// ^^^ copied from perl sources
		1080	return 0;
		1081	}
		1082
		1083	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1084	}
		1085
		1086	static MGVTBL vtbl_errno;
		1087
		1088	// this wonderful hack :( patches perl's $! variable to support our errno values
		1089	static void
		1090	patch_errno (void)
		1091	{
		1092	SV *sv;
		1093	MAGIC *mg;
		1094
		1095	if (!(sv = get_sv ("!", 1)))
		1096	return;
		1097
		1098	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1099	return;
		1100
		1101	if (mg->mg_virtual != &PL_vtbl_sv)
		1102	return;
		1103
		1104	vtbl_errno = PL_vtbl_sv;
		1105	vtbl_errno.svt_get = errno_get;
		1106	mg->mg_virtual = &vtbl_errno;
		1107	}
		1108
		1109	#if __GNUC__ >= 4
		1110	# define noinline __attribute__ ((noinline))
		1111	#else
		1112	# define noinline
		1113	#endif
		1114
		1115	static noinline SV *
		1116	pop_callback (I32 *ritems, SV *sv)
		1117	{
		1118	if (SvROK (sv))
		1119	{
		1120	HV *st;
		1121	GV *gvp;
		1122	CV *cv;
		1123	const char *name;
		1124
		1125	/* forgive me */
		1126	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1127	&& (st = SvSTASH (SvRV (sv)))
		1128	&& (name = HvNAME_get (st))
		1129	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1130	return 0;
		1131
		1132	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1133	{
		1134	--*ritems;
		1135	return (SV *)cv;
		1136	}
		1137	}
		1138
		1139	return 0;
		1140	}
		1141
		1142	/*****************************************************************************/
		1143
		1144	#if 0
		1145	static int
		1146	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1147	{
		1148	ssize_t size1 = dbt1->size;
		1149	ssize_t size2 = dbt2->size;
		1150	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1151	size1 <= size2 ? size1 : size2);
		1152
		1153	if (res)
		1154	return res;
		1155	else if (size1 - size2)
		1156	return size1 - size2;
		1157	else
		1158	return 0;
		1159	}
		1160
		1161	static size_t
		1162	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1163	{
		1164	ssize_t size1 = dbt1->size;
		1165	ssize_t size2 = dbt2->size;
		1166	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1167	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1168	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1169
		1170	while (p1 < pe)
		1171	if (*p1++ != *p2++)
		1172	return p1 - (u_int8_t *)dbt1->data - 1;
		1173
		1174	if (size1 < size2) return size1 + 1;
		1175	if (size1 > size2) return size2 + 1;
		1176
		1177	return size1;
		1178	}
		1179	#endif
		1180
		1181	/*****************************************************************************/
		1182
		1183	/* stupid windows defines CALLBACK as well */
		1184	#undef CALLBACK
		1185	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1186
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1187	MODULE = BDB PACKAGE = BDB
643		1188
644	PROTOTYPES: ENABLE	1189	PROTOTYPES: ENABLE
645		1190
646	BOOT:	1191	BOOT:
647	{	1192	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1193	static const struct {
		1194	const char *name;
		1195	IV iv;
		1196	} *civ, const_iv[] = {
		1197	#define const_iv(name) { # name, (IV)DB_ ## name },
		1198	const_iv (RPCCLIENT)
		1199	const_iv (INIT_CDB)
		1200	const_iv (INIT_LOCK)
		1201	const_iv (INIT_LOG)
		1202	const_iv (INIT_MPOOL)
		1203	const_iv (INIT_REP)
		1204	const_iv (INIT_TXN)
		1205	const_iv (RECOVER)
		1206	const_iv (INIT_TXN)
		1207	const_iv (RECOVER_FATAL)
		1208	const_iv (CREATE)
		1209	const_iv (RDONLY)
		1210	const_iv (USE_ENVIRON)
		1211	const_iv (USE_ENVIRON_ROOT)
		1212	const_iv (LOCKDOWN)
		1213	const_iv (PRIVATE)
		1214	const_iv (SYSTEM_MEM)
		1215	const_iv (AUTO_COMMIT)
		1216	const_iv (CDB_ALLDB)
		1217	const_iv (DIRECT_DB)
		1218	const_iv (NOLOCKING)
		1219	const_iv (NOMMAP)
		1220	const_iv (NOPANIC)
		1221	const_iv (OVERWRITE)
		1222	const_iv (PANIC_ENVIRONMENT)
		1223	const_iv (REGION_INIT)
		1224	const_iv (TIME_NOTGRANTED)
		1225	const_iv (TXN_NOSYNC)
		1226	const_iv (TXN_NOT_DURABLE)
		1227	const_iv (TXN_WRITE_NOSYNC)
		1228	const_iv (WRITECURSOR)
		1229	const_iv (YIELDCPU)
		1230	const_iv (ENCRYPT_AES)
		1231	const_iv (XA_CREATE)
		1232	const_iv (BTREE)
		1233	const_iv (HASH)
		1234	const_iv (QUEUE)
		1235	const_iv (RECNO)
		1236	const_iv (UNKNOWN)
		1237	const_iv (EXCL)
		1238	const_iv (TRUNCATE)
		1239	const_iv (NOSYNC)
		1240	const_iv (CHKSUM)
		1241	const_iv (ENCRYPT)
		1242	const_iv (DUP)
		1243	const_iv (DUPSORT)
		1244	//const_iv (RECNUM)
		1245	const_iv (RENUMBER)
		1246	const_iv (REVSPLITOFF)
		1247	const_iv (CONSUME)
		1248	const_iv (CONSUME_WAIT)
		1249	const_iv (GET_BOTH)
		1250	const_iv (GET_BOTH_RANGE)
		1251	//const_iv (SET_RECNO)
		1252	//const_iv (MULTIPLE)
		1253	const_iv (SNAPSHOT)
		1254	const_iv (JOIN_ITEM)
		1255	const_iv (JOIN_NOSORT)
		1256	const_iv (RMW)
649		1257
650	create_pipe ();	1258	const_iv (NOTFOUND)
		1259	const_iv (KEYEMPTY)
		1260	const_iv (LOCK_DEADLOCK)
		1261	const_iv (LOCK_NOTGRANTED)
		1262	const_iv (RUNRECOVERY)
		1263	const_iv (OLD_VERSION)
		1264	const_iv (REP_HANDLE_DEAD)
		1265	const_iv (SECONDARY_BAD)
		1266
		1267	const_iv (APPEND)
		1268	const_iv (NODUPDATA)
		1269	const_iv (NOOVERWRITE)
		1270
		1271	const_iv (TXN_NOWAIT)
		1272	const_iv (TXN_SYNC)
		1273
		1274	const_iv (SET_LOCK_TIMEOUT)
		1275	const_iv (SET_TXN_TIMEOUT)
		1276
		1277	const_iv (FIRST)
		1278	const_iv (NEXT)
		1279	const_iv (NEXT_DUP)
		1280	const_iv (NEXT_NODUP)
		1281	const_iv (PREV)
		1282	const_iv (PREV_NODUP)
		1283	const_iv (SET)
		1284	const_iv (SET_RANGE)
		1285	const_iv (LAST)
		1286	const_iv (BEFORE)
		1287	const_iv (AFTER)
		1288	const_iv (CURRENT)
		1289	const_iv (KEYFIRST)
		1290	const_iv (KEYLAST)
		1291	const_iv (NODUPDATA)
		1292
		1293	const_iv (FORCE)
		1294
		1295	const_iv (LOCK_DEFAULT)
		1296	const_iv (LOCK_EXPIRE)
		1297	const_iv (LOCK_MAXLOCKS)
		1298	const_iv (LOCK_MINLOCKS)
		1299	const_iv (LOCK_MINWRITE)
		1300	const_iv (LOCK_OLDEST)
		1301	const_iv (LOCK_RANDOM)
		1302	const_iv (LOCK_YOUNGEST)
		1303
		1304	const_iv (DONOTINDEX)
		1305	const_iv (KEYEMPTY )
		1306	const_iv (KEYEXIST )
		1307	const_iv (LOCK_DEADLOCK)
		1308	const_iv (LOCK_NOTGRANTED)
		1309	const_iv (NOSERVER)
		1310	const_iv (NOSERVER_HOME)
		1311	const_iv (NOSERVER_ID)
		1312	const_iv (NOTFOUND)
		1313	const_iv (PAGE_NOTFOUND)
		1314	const_iv (REP_DUPMASTER)
		1315	const_iv (REP_HANDLE_DEAD)
		1316	const_iv (REP_HOLDELECTION)
		1317	const_iv (REP_ISPERM)
		1318	const_iv (REP_NEWMASTER)
		1319	const_iv (REP_NEWSITE)
		1320	const_iv (REP_NOTPERM)
		1321	const_iv (REP_UNAVAIL)
		1322	const_iv (RUNRECOVERY)
		1323	const_iv (SECONDARY_BAD)
		1324	const_iv (VERIFY_BAD)
		1325
		1326	const_iv (SALVAGE)
		1327	const_iv (AGGRESSIVE)
		1328	const_iv (PRINTABLE)
		1329	const_iv (NOORDERCHK)
		1330	const_iv (ORDERCHKONLY)
		1331
		1332	const_iv (ARCH_ABS)
		1333	const_iv (ARCH_DATA)
		1334	const_iv (ARCH_LOG)
		1335	const_iv (ARCH_REMOVE)
		1336
		1337	const_iv (VERB_DEADLOCK)
		1338	const_iv (VERB_RECOVERY)
		1339	const_iv (VERB_REPLICATION)
		1340	const_iv (VERB_WAITSFOR)
		1341
		1342	const_iv (VERSION_MAJOR)
		1343	const_iv (VERSION_MINOR)
		1344	const_iv (VERSION_PATCH)
		1345	#if DB_VERSION_MINOR >= 3
		1346	const_iv (INORDER)
		1347	const_iv (LOCK_MAXWRITE)
		1348	const_iv (SEQ_DEC)
		1349	const_iv (SEQ_INC)
		1350	const_iv (SEQ_WRAP)
		1351	const_iv (BUFFER_SMALL)
		1352	const_iv (LOG_BUFFER_FULL)
		1353	const_iv (VERSION_MISMATCH)
		1354	#endif
		1355	#if DB_VERSION_MINOR >= 4
		1356	const_iv (REGISTER)
		1357	const_iv (DSYNC_DB)
		1358	const_iv (READ_COMMITTED)
		1359	const_iv (READ_UNCOMMITTED)
		1360	const_iv (REP_IGNORE)
		1361	const_iv (REP_LOCKOUT)
		1362	const_iv (REP_JOIN_FAILURE)
		1363	const_iv (FREE_SPACE)
		1364	const_iv (FREELIST_ONLY)
		1365	const_iv (VERB_REGISTER)
		1366	#endif
		1367	#if DB_VERSION_MINOR >= 5
		1368	const_iv (MULTIVERSION)
		1369	const_iv (TXN_SNAPSHOT)
		1370	#endif
		1371	#if DB_VERSION_MINOR >= 6
		1372	const_iv (PREV_DUP)
		1373	const_iv (PRIORITY_UNCHANGED)
		1374	const_iv (PRIORITY_VERY_LOW)
		1375	const_iv (PRIORITY_LOW)
		1376	const_iv (PRIORITY_DEFAULT)
		1377	const_iv (PRIORITY_HIGH)
		1378	const_iv (PRIORITY_VERY_HIGH)
		1379	const_iv (IGNORE_LEASE)
		1380	#endif
		1381	#if DB_VERSION_MINOR >= 7
		1382	//const_iv (MULTIPLE_KEY)
		1383	const_iv (LOG_DIRECT)
		1384	const_iv (LOG_DSYNC)
		1385	const_iv (LOG_AUTO_REMOVE)
		1386	const_iv (LOG_IN_MEMORY)
		1387	const_iv (LOG_ZERO)
		1388	#else
		1389	const_iv (DIRECT_LOG)
		1390	const_iv (LOG_AUTOREMOVE)
		1391	# if DB_VERSION_MINOR >= 3
		1392	const_iv (DSYNC_LOG)
		1393	const_iv (LOG_INMEMORY)
		1394	# endif
		1395	#endif
		1396	};
		1397
		1398	bdb_stash = gv_stashpv ("BDB" , 1);
		1399	bdb_env_stash = gv_stashpv ("BDB::Env" , 1);
		1400	bdb_txn_stash = gv_stashpv ("BDB::Txn" , 1);
		1401	bdb_cursor_stash = gv_stashpv ("BDB::Cursor" , 1);
		1402	bdb_db_stash = gv_stashpv ("BDB::Db" , 1);
		1403	bdb_sequence_stash = gv_stashpv ("BDB::Sequence", 1);
		1404
		1405	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1406	newCONSTSUB (bdb_stash, (char *)civ->name, newSViv (civ->iv));
		1407
		1408	prepare_cb = &PL_sv_undef;
		1409
		1410	{
		1411	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1412	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1413
		1414	newCONSTSUB (bdb_stash, "VERSION_v", newSVpvn (vstring, 3));
		1415	}
		1416
		1417	newCONSTSUB (bdb_stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1418
		1419	create_respipe ();
		1420
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1421	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1422	patch_errno ();
652	}	1423	}
653		1424
654	void	1425	void
655	max_poll_reqs (int nreqs)	1426	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1427	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1456	max_outstanding = maxreqs;
686	OUTPUT:	1457	OUTPUT:
687	RETVAL	1458	RETVAL
688		1459
689	int	1460	int
690	bdbreq_pri (int pri = 0)	1461	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1462	PROTOTYPE: ;$
692	CODE:	1463	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1464	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1465	if (items > 0)
695	{	1466	{
…		…
699	}	1470	}
700	OUTPUT:	1471	OUTPUT:
701	RETVAL	1472	RETVAL
702		1473
703	void	1474	void
704	bdbreq_nice (int nice = 0)	1475	dbreq_nice (int nice = 0)
705	CODE:	1476	CODE:
706	nice = next_pri - nice;	1477	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1478	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1479	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1480	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1488	poll_wait ();
718	poll_cb ();	1489	poll_cb ();
719	}	1490	}
720		1491
721	int	1492	int
722	poll()	1493	poll ()
723	PROTOTYPE:	1494	PROTOTYPE:
724	CODE:	1495	CODE:
725	poll_wait ();	1496	poll_wait ();
726	RETVAL = poll_cb ();	1497	RETVAL = poll_cb ();
727	OUTPUT:	1498	OUTPUT:
728	RETVAL	1499	RETVAL
729		1500
730	int	1501	int
731	poll_fileno()	1502	poll_fileno ()
732	PROTOTYPE:	1503	PROTOTYPE:
733	CODE:	1504	CODE:
734	RETVAL = respipe [0];	1505	RETVAL = s_epipe_fd (&respipe);
735	OUTPUT:	1506	OUTPUT:
736	RETVAL	1507	RETVAL
737		1508
738	int	1509	int
739	poll_cb(...)	1510	poll_cb (...)
740	PROTOTYPE:	1511	PROTOTYPE:
741	CODE:	1512	CODE:
742	RETVAL = poll_cb ();	1513	RETVAL = poll_cb ();
743	OUTPUT:	1514	OUTPUT:
744	RETVAL	1515	RETVAL
745		1516
746	void	1517	void
747	poll_wait()	1518	poll_wait ()
748	PROTOTYPE:	1519	PROTOTYPE:
749	CODE:	1520	CODE:
750	poll_wait ();	1521	poll_wait ();
751		1522
752	int	1523	int
753	nreqs()	1524	nreqs ()
754	PROTOTYPE:	1525	PROTOTYPE:
755	CODE:	1526	CODE:
756	RETVAL = nreqs;	1527	RETVAL = nreqs;
757	OUTPUT:	1528	OUTPUT:
758	RETVAL	1529	RETVAL
759		1530
760	int	1531	int
761	nready()	1532	nready ()
762	PROTOTYPE:	1533	PROTOTYPE:
763	CODE:	1534	CODE:
764	RETVAL = get_nready ();	1535	RETVAL = get_nready ();
765	OUTPUT:	1536	OUTPUT:
766	RETVAL	1537	RETVAL
767		1538
768	int	1539	int
769	npending()	1540	npending ()
770	PROTOTYPE:	1541	PROTOTYPE:
771	CODE:	1542	CODE:
772	RETVAL = get_npending ();	1543	RETVAL = get_npending ();
773	OUTPUT:	1544	OUTPUT:
774	RETVAL	1545	RETVAL
775		1546
776	int	1547	int
777	nthreads()	1548	nthreads ()
778	PROTOTYPE:	1549	PROTOTYPE:
779	CODE:	1550	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1551	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1552	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1553	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1554	OUTPUT:
784	RETVAL	1555	RETVAL
785		1556
		1557	SV *
		1558	set_sync_prepare (SV *cb)
		1559	PROTOTYPE: &
		1560	CODE:
		1561	RETVAL = prepare_cb;
		1562	prepare_cb = newSVsv (cb);
		1563	OUTPUT:
		1564	RETVAL
786		1565
		1566	char *
		1567	strerror (int errorno = errno)
		1568	PROTOTYPE: ;$
		1569	CODE:
		1570	RETVAL = db_strerror (errorno);
		1571	OUTPUT:
		1572	RETVAL
		1573
		1574	void _on_next_submit (SV *cb)
		1575	CODE:
		1576	SvREFCNT_dec (on_next_submit);
		1577	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1578
		1579	DB_ENV *
		1580	db_env_create (U32 env_flags = 0)
		1581	CODE:
		1582	{
		1583	errno = db_env_create (&RETVAL, env_flags);
		1584	if (errno)
		1585	croak ("db_env_create: %s", db_strerror (errno));
		1586
		1587	if (0)
		1588	{
		1589	RETVAL->set_errcall (RETVAL, debug_errcall);
		1590	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1591	}
		1592	}
		1593	OUTPUT:
		1594	RETVAL
		1595
		1596	void
		1597	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1598	PREINIT:
		1599	CALLBACK
		1600	CODE:
		1601	{
		1602	dREQ (REQ_ENV_OPEN, 1);
		1603	req->env = env;
		1604	req->uint1 = open_flags | DB_THREAD;
		1605	req->int1 = mode;
		1606	req->buf1 = strdup_ornull (db_home);
		1607	REQ_SEND;
		1608	}
		1609
		1610	void
		1611	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1612	PREINIT:
		1613	CALLBACK
		1614	CODE:
		1615	{
		1616	dREQ (REQ_ENV_CLOSE, 0);
		1617	ptr_nuke (ST (0));
		1618	req->env = env;
		1619	req->uint1 = flags;
		1620	REQ_SEND;
		1621	}
		1622
		1623	void
		1624	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1625	PREINIT:
		1626	CALLBACK
		1627	CODE:
		1628	{
		1629	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1630	req->env = env;
		1631	req->uint1 = kbyte;
		1632	req->int1 = min;
		1633	req->uint2 = flags;
		1634	REQ_SEND;
		1635	}
		1636
		1637	void
		1638	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1639	PREINIT:
		1640	CALLBACK
		1641	CODE:
		1642	{
		1643	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1644	req->env = env;
		1645	req->uint1 = flags;
		1646	req->uint2 = atype;
		1647	/* req->int2 = 0; dummy */
		1648	REQ_SEND;
		1649	}
		1650
		1651	void
		1652	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1653	PREINIT:
		1654	CALLBACK
		1655	CODE:
		1656	{
		1657	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1658	req->env = env;
		1659	REQ_SEND;
		1660	}
		1661
		1662	void
		1663	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1664	PREINIT:
		1665	CALLBACK
		1666	CODE:
		1667	{
		1668	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1669	req->env = env;
		1670	req->int1 = percent;
		1671	REQ_SEND;
		1672	}
		1673
		1674	void
		1675	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1676	PREINIT:
		1677	CALLBACK
		1678	CODE:
		1679	{
		1680	dREQ (REQ_ENV_DBREMOVE, 2);
		1681	req->env = env;
		1682	req->buf1 = strdup_ornull (file);
		1683	req->buf2 = strdup_ornull (database);
		1684	req->uint1 = flags;
		1685	REQ_SEND;
		1686	}
		1687
		1688	void
		1689	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)
		1690	PREINIT:
		1691	CALLBACK
		1692	CODE:
		1693	{
		1694	dREQ (REQ_ENV_DBRENAME, 2);
		1695	req->env = env;
		1696	req->buf1 = strdup_ornull (file);
		1697	req->buf2 = strdup_ornull (database);
		1698	req->buf3 = strdup_ornull (newname);
		1699	req->uint1 = flags;
		1700	REQ_SEND;
		1701	}
		1702
		1703	void
		1704	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1705	PREINIT:
		1706	CALLBACK
		1707	CODE:
		1708	{
		1709	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1710	req->sv1 = SvREFCNT_inc (listp);
		1711	req->env = env;
		1712	req->uint1 = flags;
		1713	REQ_SEND;
		1714	}
		1715
		1716	DB *
		1717	db_create (DB_ENV *env = 0, U32 flags = 0)
		1718	CODE:
		1719	{
		1720	errno = db_create (&RETVAL, env, flags);
		1721	if (errno)
		1722	croak ("db_create: %s", db_strerror (errno));
		1723
		1724	if (RETVAL)
		1725	RETVAL->app_private = (void *)newSVsv (ST (0));
		1726	}
		1727	OUTPUT:
		1728	RETVAL
		1729
		1730	void
		1731	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1732	PREINIT:
		1733	CALLBACK
		1734	CODE:
		1735	{
		1736	dREQ (REQ_DB_OPEN, 2);
		1737	req->db = db;
		1738	req->txn = txnid;
		1739	req->buf1 = strdup_ornull (file);
		1740	req->buf2 = strdup_ornull (database);
		1741	req->int1 = type;
		1742	req->uint1 = flags | DB_THREAD;
		1743	req->int2 = mode;
		1744	REQ_SEND;
		1745	}
		1746
		1747	void
		1748	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1749	PREINIT:
		1750	CALLBACK
		1751	CODE:
		1752	{
		1753	dREQ (REQ_DB_CLOSE, 0);
		1754	ptr_nuke (ST (0));
		1755	req->db = db;
		1756	req->uint1 = flags;
		1757	req->sv1 = (SV *)db->app_private;
		1758	REQ_SEND;
		1759	}
		1760
		1761	#if DB_VERSION_MINOR >= 4
		1762
		1763	void
		1764	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)
		1765	PREINIT:
		1766	CALLBACK
		1767	CODE:
		1768	{
		1769	dREQ (REQ_DB_COMPACT, 2);
		1770	req->db = db;
		1771	req->txn = txn;
		1772	if (start) sv_to_dbt (&req->dbt1, start);
		1773	if (stop ) sv_to_dbt (&req->dbt2, stop );
		1774	req->uint1 = flags;
		1775	REQ_SEND;
		1776	}
		1777
		1778	#endif
		1779
		1780	void
		1781	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1782	PREINIT:
		1783	CALLBACK
		1784	CODE:
		1785	{
		1786	dREQ (REQ_DB_SYNC, 1);
		1787	req->db = db;
		1788	req->uint1 = flags;
		1789	REQ_SEND;
		1790	}
		1791
		1792	void
		1793	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1794	PREINIT:
		1795	CALLBACK
		1796	CODE:
		1797	{
		1798	dREQ (REQ_DB_VERIFY, 1);
		1799	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
		1800	req->db = db;
		1801	req->buf1 = strdup (file);
		1802	req->buf2 = strdup_ornull (database);
		1803	req->uint1 = flags;
		1804	REQ_SEND;
		1805	}
		1806
		1807	void
		1808	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1809	PREINIT:
		1810	CALLBACK
		1811	CODE:
		1812	{
		1813	dREQ (REQ_DB_UPGRADE, 1);
		1814	req->db = db;
		1815	req->buf1 = strdup (file);
		1816	req->uint1 = flags;
		1817	REQ_SEND;
		1818	}
		1819
		1820	void
		1821	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1822	PREINIT:
		1823	CALLBACK
		1824	CODE:
		1825	{
		1826	dREQ (REQ_DB_KEY_RANGE, 2);
		1827	req->db = db;
		1828	req->txn = txn;
		1829	sv_to_dbt (&req->dbt1, key);
		1830	req->uint1 = flags;
		1831	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1832	REQ_SEND;
		1833	}
		1834
		1835	void
		1836	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1837	PREINIT:
		1838	CALLBACK
		1839	CODE:
		1840	{
		1841	dREQ (REQ_DB_PUT, 2);
		1842	req->db = db;
		1843	req->txn = txn;
		1844	sv_to_dbt (&req->dbt1, key);
		1845	sv_to_dbt (&req->dbt2, data);
		1846	req->uint1 = flags;
		1847	REQ_SEND;
		1848	}
		1849
		1850	#if DB_VERSION_MINOR >= 6
		1851
		1852	void
		1853	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1854	PREINIT:
		1855	CALLBACK
		1856	CODE:
		1857	{
		1858	dREQ (REQ_DB_EXISTS, 2);
		1859	req->db = db;
		1860	req->txn = txn;
		1861	req->uint1 = flags;
		1862	sv_to_dbt (&req->dbt1, key);
		1863	REQ_SEND;
		1864	}
		1865
		1866	#endif
		1867
		1868	void
		1869	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1870	PREINIT:
		1871	CALLBACK
		1872	CODE:
		1873	{
		1874	//TODO: key is somtimesmutable
		1875	dREQ (REQ_DB_GET, 2);
		1876	req->db = db;
		1877	req->txn = txn;
		1878	req->uint1 = flags;
		1879	sv_to_dbt (&req->dbt1, key);
		1880	req->dbt3.flags = DB_DBT_MALLOC;
		1881	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1882	REQ_SEND;
		1883	}
		1884
		1885	void
		1886	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1887	PREINIT:
		1888	CALLBACK
		1889	CODE:
		1890	{
		1891	//TODO: key is somtimesmutable
		1892	dREQ (REQ_DB_PGET, 2);
		1893	req->db = db;
		1894	req->txn = txn;
		1895	req->uint1 = flags;
		1896
		1897	sv_to_dbt (&req->dbt1, key);
		1898
		1899	req->dbt2.flags = DB_DBT_MALLOC;
		1900	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1901
		1902	req->dbt3.flags = DB_DBT_MALLOC;
		1903	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1904	REQ_SEND;
		1905	}
		1906
		1907	void
		1908	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1909	PREINIT:
		1910	CALLBACK
		1911	CODE:
		1912	{
		1913	dREQ (REQ_DB_DEL, 2);
		1914	req->db = db;
		1915	req->txn = txn;
		1916	req->uint1 = flags;
		1917	sv_to_dbt (&req->dbt1, key);
		1918	REQ_SEND;
		1919	}
		1920
		1921	void
		1922	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1923	PREINIT:
		1924	CALLBACK
		1925	CODE:
		1926	{
		1927	dREQ (REQ_TXN_COMMIT, 0);
		1928	ptr_nuke (ST (0));
		1929	req->txn = txn;
		1930	req->uint1 = flags;
		1931	REQ_SEND;
		1932	}
		1933
		1934	void
		1935	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1936	PREINIT:
		1937	CALLBACK
		1938	CODE:
		1939	{
		1940	dREQ (REQ_TXN_ABORT, 0);
		1941	ptr_nuke (ST (0));
		1942	req->txn = txn;
		1943	REQ_SEND;
		1944	}
		1945
		1946	void
		1947	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1948	PREINIT:
		1949	CALLBACK
		1950	CODE:
		1951	{
		1952	dREQ (REQ_TXN_FINISH, 0);
		1953	ptr_nuke (ST (0));
		1954	req->txn = txn;
		1955	req->uint1 = flags;
		1956	REQ_SEND;
		1957	}
		1958
		1959	void
		1960	db_c_close (DBC *dbc, SV *callback = 0)
		1961	PREINIT:
		1962	CALLBACK
		1963	CODE:
		1964	{
		1965	dREQ (REQ_C_CLOSE, 0);
		1966	ptr_nuke (ST (0));
		1967	req->dbc = dbc;
		1968	REQ_SEND;
		1969	}
		1970
		1971	void
		1972	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1973	PREINIT:
		1974	CALLBACK
		1975	CODE:
		1976	{
		1977	dREQ (REQ_C_COUNT, 1);
		1978	req->dbc = dbc;
		1979	req->sv1 = SvREFCNT_inc (count);
		1980	REQ_SEND;
		1981	}
		1982
		1983	void
		1984	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1985	PREINIT:
		1986	CALLBACK
		1987	CODE:
		1988	{
		1989	dREQ (REQ_C_PUT, 1);
		1990	req->dbc = dbc;
		1991	sv_to_dbt (&req->dbt1, key);
		1992	sv_to_dbt (&req->dbt2, data);
		1993	req->uint1 = flags;
		1994	REQ_SEND;
		1995	}
		1996
		1997	void
		1998	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1999	PREINIT:
		2000	CALLBACK
		2001	CODE:
		2002	{
		2003	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2004	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2005	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2006	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2007	"key",
		2008	"BDB::db_c_get");
		2009
		2010	{
		2011	dREQ (REQ_C_GET, 1);
		2012	req->dbc = dbc;
		2013	req->uint1 = flags;
		2014	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2015	sv_to_dbt (&req->dbt1, key);
		2016	else
		2017	{
		2018	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2019	sv_to_dbt (&req->dbt1, key);
		2020	else
		2021	req->dbt1.flags = DB_DBT_MALLOC;
		2022
		2023	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2024	}
		2025
		2026	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2027	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2028	sv_to_dbt (&req->dbt3, data);
		2029	else
		2030	req->dbt3.flags = DB_DBT_MALLOC;
		2031
		2032	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2033	REQ_SEND;
		2034	}
		2035	}
		2036
		2037	void
		2038	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2039	PREINIT:
		2040	CALLBACK
		2041	CODE:
		2042	{
		2043	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2044	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2045	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2046	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2047	"key",
		2048	"BDB::db_c_pget");
		2049
		2050	{
		2051	dREQ (REQ_C_PGET, 1);
		2052	req->dbc = dbc;
		2053	req->uint1 = flags;
		2054	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2055	sv_to_dbt (&req->dbt1, key);
		2056	else
		2057	{
		2058	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2059	sv_to_dbt (&req->dbt1, key);
		2060	else
		2061	req->dbt1.flags = DB_DBT_MALLOC;
		2062
		2063	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2064	}
		2065
		2066	req->dbt2.flags = DB_DBT_MALLOC;
		2067	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2068
		2069	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2070	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2071	sv_to_dbt (&req->dbt3, data);
		2072	else
		2073	req->dbt3.flags = DB_DBT_MALLOC;
		2074
		2075	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2076	REQ_SEND;
		2077	}
		2078	}
		2079
		2080	void
		2081	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2082	PREINIT:
		2083	CALLBACK
		2084	CODE:
		2085	{
		2086	dREQ (REQ_C_DEL, 1);
		2087	req->dbc = dbc;
		2088	req->uint1 = flags;
		2089	REQ_SEND;
		2090	}
		2091
		2092
		2093	#if DB_VERSION_MINOR >= 3
		2094
		2095	void
		2096	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2097	PREINIT:
		2098	CALLBACK
		2099	CODE:
		2100	{
		2101	dREQ (REQ_SEQ_OPEN, 2);
		2102	req->seq = seq;
		2103	req->txn = txnid;
		2104	req->uint1 = flags | DB_THREAD;
		2105	sv_to_dbt (&req->dbt1, key);
		2106	REQ_SEND;
		2107	}
		2108
		2109	void
		2110	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2111	PREINIT:
		2112	CALLBACK
		2113	CODE:
		2114	{
		2115	dREQ (REQ_SEQ_CLOSE, 0);
		2116	ptr_nuke (ST (0));
		2117	req->seq = seq;
		2118	req->uint1 = flags;
		2119	REQ_SEND;
		2120	}
		2121
		2122	void
		2123	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2124	PREINIT:
		2125	CALLBACK
		2126	CODE:
		2127	{
		2128	dREQ (REQ_SEQ_GET, 2);
		2129	req->seq = seq;
		2130	req->txn = txnid;
		2131	req->int1 = delta;
		2132	req->uint1 = flags;
		2133	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2134	REQ_SEND;
		2135	}
		2136
		2137	void
		2138	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2139	PREINIT:
		2140	CALLBACK
		2141	CODE:
		2142	{
		2143	dREQ (REQ_SEQ_REMOVE, 2);
		2144	req->seq = seq;
		2145	req->txn = txnid;
		2146	req->uint1 = flags;
		2147	REQ_SEND;
		2148	}
		2149
		2150	#endif
		2151
		2152
		2153	MODULE = BDB PACKAGE = BDB::Env
		2154
		2155	void
		2156	DESTROY (DB_ENV_ornuked *env)
		2157	CODE:
		2158	if (env)
		2159	env->close (env, 0);
		2160
		2161	int set_data_dir (DB_ENV *env, const char *dir)
		2162	CODE:
		2163	RETVAL = env->set_data_dir (env, dir);
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	int set_tmp_dir (DB_ENV *env, const char *dir)
		2168	CODE:
		2169	RETVAL = env->set_tmp_dir (env, dir);
		2170	OUTPUT:
		2171	RETVAL
		2172
		2173	int set_lg_dir (DB_ENV *env, const char *dir)
		2174	CODE:
		2175	RETVAL = env->set_lg_dir (env, dir);
		2176	OUTPUT:
		2177	RETVAL
		2178
		2179	int set_shm_key (DB_ENV *env, long shm_key)
		2180	CODE:
		2181	RETVAL = env->set_shm_key (env, shm_key);
		2182	OUTPUT:
		2183	RETVAL
		2184
		2185	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2186	CODE:
		2187	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2192	CODE:
		2193	RETVAL = env->set_flags (env, flags, onoff);
		2194	OUTPUT:
		2195	RETVAL
		2196
		2197	#if DB_VERSION_MINOR >= 7
		2198
		2199	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2200	CODE:
		2201	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2202	OUTPUT:
		2203	RETVAL
		2204
		2205	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2206	CODE:
		2207	RETVAL = env->log_set_config (env, flags, onoff);
		2208	OUTPUT:
		2209	RETVAL
		2210
		2211	#endif
		2212
		2213
		2214	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2215	CODE:
		2216	env->set_errfile (env, errfile);
		2217
		2218	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2219	CODE:
		2220	env->set_msgfile (env, msgfile);
		2221
		2222	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2223	CODE:
		2224	RETVAL = env->set_verbose (env, which, onoff);
		2225	OUTPUT:
		2226	RETVAL
		2227
		2228	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2229	CODE:
		2230	RETVAL = env->set_encrypt (env, password, flags);
		2231	OUTPUT:
		2232	RETVAL
		2233
		2234	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2235	CODE:
		2236	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2237	OUTPUT:
		2238	RETVAL
		2239
		2240	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2241	CODE:
		2242	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2243	OUTPUT:
		2244	RETVAL
		2245
		2246	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2247	CODE:
		2248	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2249	OUTPUT:
		2250	RETVAL
		2251
		2252	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2253	CODE:
		2254	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2255	OUTPUT:
		2256	RETVAL
		2257
		2258	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2259	CODE:
		2260	RETVAL = env->set_lk_detect (env, detect);
		2261	OUTPUT:
		2262	RETVAL
		2263
		2264	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2265	CODE:
		2266	RETVAL = env->set_lk_max_lockers (env, max);
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	int set_lk_max_locks (DB_ENV *env, U32 max)
		2271	CODE:
		2272	RETVAL = env->set_lk_max_locks (env, max);
		2273	OUTPUT:
		2274	RETVAL
		2275
		2276	int set_lk_max_objects (DB_ENV *env, U32 max)
		2277	CODE:
		2278	RETVAL = env->set_lk_max_objects (env, max);
		2279	OUTPUT:
		2280	RETVAL
		2281
		2282	int set_lg_bsize (DB_ENV *env, U32 max)
		2283	CODE:
		2284	RETVAL = env->set_lg_bsize (env, max);
		2285	OUTPUT:
		2286	RETVAL
		2287
		2288	int set_lg_max (DB_ENV *env, U32 max)
		2289	CODE:
		2290	RETVAL = env->set_lg_max (env, max);
		2291	OUTPUT:
		2292	RETVAL
		2293
		2294	#if DB_VERSION_MINOR >= 4
		2295
		2296	int mutex_set_max (DB_ENV *env, U32 max)
		2297	CODE:
		2298	RETVAL = env->mutex_set_max (env, max);
		2299	OUTPUT:
		2300	RETVAL
		2301
		2302	int mutex_set_increment (DB_ENV *env, U32 increment)
		2303	CODE:
		2304	RETVAL = env->mutex_set_increment (env, increment);
		2305	OUTPUT:
		2306	RETVAL
		2307
		2308	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2309	CODE:
		2310	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2311	OUTPUT:
		2312	RETVAL
		2313
		2314	int mutex_set_align (DB_ENV *env, U32 align)
		2315	CODE:
		2316	RETVAL = env->mutex_set_align (env, align);
		2317	OUTPUT:
		2318	RETVAL
		2319
		2320	#endif
		2321
		2322	DB_TXN *
		2323	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2324	CODE:
		2325	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2326	if (errno)
		2327	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2328	OUTPUT:
		2329	RETVAL
		2330
		2331	#if DB_VERSION_MINOR >= 5
		2332
		2333	DB_TXN *
		2334	cdsgroup_begin (DB_ENV *env)
		2335	CODE:
		2336	errno = env->cdsgroup_begin (env, &RETVAL);
		2337	if (errno)
		2338	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2339	OUTPUT:
		2340	RETVAL
		2341
		2342	#endif
		2343
		2344	MODULE = BDB PACKAGE = BDB::Db
		2345
		2346	void
		2347	DESTROY (DB_ornuked *db)
		2348	CODE:
		2349	if (db)
		2350	{
		2351	SV *env = (SV *)db->app_private;
		2352	db->close (db, 0);
		2353	SvREFCNT_dec (env);
		2354	}
		2355
		2356	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2357	CODE:
		2358	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2359	OUTPUT:
		2360	RETVAL
		2361
		2362	int set_pagesize (DB *db, U32 pagesize)
		2363	CODE:
		2364	RETVAL = db->set_pagesize (db, pagesize);
		2365	OUTPUT:
		2366	RETVAL
		2367
		2368	int set_flags (DB *db, U32 flags)
		2369	CODE:
		2370	RETVAL = db->set_flags (db, flags);
		2371	OUTPUT:
		2372	RETVAL
		2373
		2374	int set_encrypt (DB *db, const char *password, U32 flags)
		2375	CODE:
		2376	RETVAL = db->set_encrypt (db, password, flags);
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	int set_lorder (DB *db, int lorder)
		2381	CODE:
		2382	RETVAL = db->set_lorder (db, lorder);
		2383	OUTPUT:
		2384	RETVAL
		2385
		2386	int set_bt_minkey (DB *db, U32 minkey)
		2387	CODE:
		2388	RETVAL = db->set_bt_minkey (db, minkey);
		2389	OUTPUT:
		2390	RETVAL
		2391
		2392	int set_re_delim (DB *db, int delim)
		2393	CODE:
		2394	RETVAL = db->set_re_delim (db, delim);
		2395	OUTPUT:
		2396	RETVAL
		2397
		2398	int set_re_pad (DB *db, int re_pad)
		2399	CODE:
		2400	RETVAL = db->set_re_pad (db, re_pad);
		2401	OUTPUT:
		2402	RETVAL
		2403
		2404	int set_re_source (DB *db, char *source)
		2405	CODE:
		2406	RETVAL = db->set_re_source (db, source);
		2407	OUTPUT:
		2408	RETVAL
		2409
		2410	int set_re_len (DB *db, U32 re_len)
		2411	CODE:
		2412	RETVAL = db->set_re_len (db, re_len);
		2413	OUTPUT:
		2414	RETVAL
		2415
		2416	int set_h_ffactor (DB *db, U32 h_ffactor)
		2417	CODE:
		2418	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2419	OUTPUT:
		2420	RETVAL
		2421
		2422	int set_h_nelem (DB *db, U32 h_nelem)
		2423	CODE:
		2424	RETVAL = db->set_h_nelem (db, h_nelem);
		2425	OUTPUT:
		2426	RETVAL
		2427
		2428	int set_q_extentsize (DB *db, U32 extentsize)
		2429	CODE:
		2430	RETVAL = db->set_q_extentsize (db, extentsize);
		2431	OUTPUT:
		2432	RETVAL
		2433
		2434	DBC *
		2435	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2436	CODE:
		2437	errno = db->cursor (db, txn, &RETVAL, flags);
		2438	if (errno)
		2439	croak ("DB->cursor: %s", db_strerror (errno));
		2440	OUTPUT:
		2441	RETVAL
		2442
		2443	#if DB_VERSION_MINOR >= 3
		2444
		2445	DB_SEQUENCE *
		2446	sequence (DB *db, U32 flags = 0)
		2447	CODE:
		2448	{
		2449	errno = db_sequence_create (&RETVAL, db, flags);
		2450	if (errno)
		2451	croak ("db_sequence_create: %s", db_strerror (errno));
		2452	}
		2453	OUTPUT:
		2454	RETVAL
		2455
		2456	#endif
		2457
		2458
		2459	MODULE = BDB PACKAGE = BDB::Txn
		2460
		2461	void
		2462	DESTROY (DB_TXN_ornuked *txn)
		2463	CODE:
		2464	if (txn)
		2465	txn->abort (txn);
		2466
		2467	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2468	CODE:
		2469	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2470	OUTPUT:
		2471	RETVAL
		2472
		2473	int failed (DB_TXN *txn)
		2474	CODE:
		2475	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2476	OUTPUT:
		2477	RETVAL
		2478
		2479
		2480	MODULE = BDB PACKAGE = BDB::Cursor
		2481
		2482	void
		2483	DESTROY (DBC_ornuked *dbc)
		2484	CODE:
		2485	if (dbc)
		2486	dbc->c_close (dbc);
		2487
		2488	#if DB_VERSION_MINOR >= 6
		2489
		2490	int set_priority (DBC *dbc, int priority)
		2491	CODE:
		2492	dbc->set_priority (dbc, priority);
		2493
		2494	#endif
		2495
		2496	#if DB_VERSION_MINOR >= 3
		2497
		2498	MODULE = BDB PACKAGE = BDB::Sequence
		2499
		2500	void
		2501	DESTROY (DB_SEQUENCE_ornuked *seq)
		2502	CODE:
		2503	if (seq)
		2504	seq->close (seq, 0);
		2505
		2506	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2507	CODE:
		2508	RETVAL = seq->initial_value (seq, value);
		2509	OUTPUT:
		2510	RETVAL
		2511
		2512	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2513	CODE:
		2514	RETVAL = seq->set_cachesize (seq, size);
		2515	OUTPUT:
		2516	RETVAL
		2517
		2518	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2519	CODE:
		2520	RETVAL = seq->set_flags (seq, flags);
		2521	OUTPUT:
		2522	RETVAL
		2523
		2524	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2525	CODE:
		2526	RETVAL = seq->set_range (seq, min, max);
		2527	OUTPUT:
		2528	RETVAL
		2529
		2530	#endif
		2531
		2532

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