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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 1.77 by root, Mon Dec 26 01:46:33 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/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	#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
31		41
32	/* number of seconds after which idle threads exit */	42	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	43	#define IDLE_TIMEOUT 10
34		44
35	/* wether word reads are potentially non-atomic.	45	typedef SV SV_mutable;
36	* this is conservatice, likely most arches this runs	46
37	* on have atomic word read/writes.	47	typedef DB_ENV DB_ENV_ornull;
38	*/	48	typedef DB_TXN DB_TXN_ornull;
39	#ifndef WORDACCESS_UNSAFE	49	typedef DBC DBC_ornull;
40	# if __i386 || __x86_64	50	typedef DB DB_ornull;
41	# define WORDACCESS_UNSAFE 0	51
42	# else	52	typedef DB_ENV DB_ENV_ornuked;
43	# 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;
44	# endif	60	#endif
45	#endif
46		61
47	typedef SV SV8; /* byte-sv, used for argument-checking */	62	typedef char *bdb_filename;
48		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
49	enum {	162	enum {
50	REQ_QUIT,	163	REQ_QUIT,
		164	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		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,
51	};	172	};
52		173
53	#define AIO_CB \	174	typedef struct bdb_cb
		175	{
54	struct aio_cb *volatile next; \	176	struct bdb_cb *volatile next;
55	SV *callback; \	177	SV *callback;
56	int type, pri	178	int type, pri, result;
57		179
58	typedef struct aio_cb	180	DB_ENV *env;
59	{	181	DB *db;
60	AIO_CB;	182	DB_TXN *txn;
61	} aio_cb;	183	DBC *dbc;
62		184
		185	UV uv1;
		186	int int1, int2;
		187	U32 uint1, uint2;
		188	char *buf1, *buf2, *buf3;
		189	SV *sv1, *sv2, *sv3;
		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
63	typedef aio_cb *aio_req;	201	typedef bdb_cb *bdb_req;
64		202
65	enum {	203	enum {
66	PRI_MIN = -4,	204	PRI_MIN = -4,
67	PRI_MAX = 4,	205	PRI_MAX = 4,
68		206
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	209	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	210	};
73		211
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	212	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		213
		214	static SV *on_next_submit;
		215
76	static unsigned int max_poll_time = 0;	216	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	217	static unsigned int max_poll_reqs = 0;
78		218
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	219	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	220	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		225
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	226	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		227
88	static unsigned int started, idle, wanted;	228	static unsigned int started, idle, wanted;
89		229
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 */	230	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	231	static xmutex_t wrklock = X_MUTEX_INIT;
101		232
102	typedef struct worker {	233	typedef struct worker {
103	/* locked by wrklock */	234	/* locked by wrklock */
104	struct worker *prev, *next;	235	struct worker *prev, *next;
105		236
106	pthread_t tid;	237	xthread_t tid;
107		238
108	/* locked by reslock, reqlock or wrklock */	239	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	240	bdb_req req; /* currently processed request */
110	void *dbuf;	241	void *dbuf;
111	DIR *dirp;	242	DIR *dirp;
112	} worker;	243	} worker;
113		244
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	245	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	257	}
127		258
128	static volatile unsigned int nreqs, nready, npending;	259	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	260	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	261	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	262	static s_epipe respipe;
132		263
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	264	static xmutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	265	static xmutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	266	static xcond_t reqwait = X_COND_INIT;
136		267
137	#if WORDACCESS_UNSAFE	268	#if WORDACCESS_UNSAFE
138		269
139	static unsigned int get_nready ()	270	static unsigned int get_nready (void)
140	{	271	{
141	unsigned int retval;	272	unsigned int retval;
142		273
143	LOCK (reqlock);	274	X_LOCK (reqlock);
144	retval = nready;	275	retval = nready;
145	UNLOCK (reqlock);	276	X_UNLOCK (reqlock);
146		277
147	return retval;	278	return retval;
148	}	279	}
149		280
150	static unsigned int get_npending ()	281	static unsigned int get_npending (void)
151	{	282	{
152	unsigned int retval;	283	unsigned int retval;
153		284
154	LOCK (reslock);	285	X_LOCK (reslock);
155	retval = npending;	286	retval = npending;
156	UNLOCK (reslock);	287	X_UNLOCK (reslock);
157		288
158	return retval;	289	return retval;
159	}	290	}
160		291
161	static unsigned int get_nthreads ()	292	static unsigned int get_nthreads (void)
162	{	293	{
163	unsigned int retval;	294	unsigned int retval;
164		295
165	LOCK (wrklock);	296	X_LOCK (wrklock);
166	retval = started;	297	retval = started;
167	UNLOCK (wrklock);	298	X_UNLOCK (wrklock);
168		299
169	return retval;	300	return retval;
170	}	301	}
171		302
172	#else	303	#else
…		…
181	* a somewhat faster data structure might be nice, but	312	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	313	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	314	* per shift, the most expensive operation.
184	*/	315	*/
185	typedef struct {	316	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	317	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	318	int size;
188	} reqq;	319	} reqq;
189		320
190	static reqq req_queue;	321	static reqq req_queue;
191	static reqq res_queue;	322	static reqq res_queue;
192		323
193	int reqq_push (reqq *q, aio_req req)	324	int reqq_push (reqq *q, bdb_req req)
194	{	325	{
195	int pri = req->pri;	326	int pri = req->pri;
196	req->next = 0;	327	req->next = 0;
197		328
198	if (q->qe[pri])	329	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	335	q->qe[pri] = q->qs[pri] = req;
205		336
206	return q->size++;	337	return q->size++;
207	}	338	}
208		339
209	aio_req reqq_shift (reqq *q)	340	bdb_req reqq_shift (reqq *q)
210	{	341	{
211	int pri;	342	int pri;
212		343
213	if (!q->size)	344	if (!q->size)
214	return 0;	345	return 0;
215		346
216	--q->size;	347	--q->size;
217		348
218	for (pri = NUM_PRI; pri--; )	349	for (pri = NUM_PRI; pri--; )
219	{	350	{
220	aio_req req = q->qs[pri];	351	bdb_req req = q->qs[pri];
221		352
222	if (req)	353	if (req)
223	{	354	{
224	if (!(q->qs[pri] = req->next))	355	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	356	q->qe[pri] = 0;
…		…
229	}	360	}
230		361
231	abort ();	362	abort ();
232	}	363	}
233		364
234	static int poll_cb ();	365	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	366	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);
238		367
239	static int req_invoke (aio_req req)	368	static int req_invoke (bdb_req req)
240	{	369	{
241	dSP;	370	switch (req->type)
242
243	if (SvOK (req->callback))
244	{	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
245	ENTER;	442	ENTER;
246	SAVETMPS;	443	SAVETMPS;
247	PUSHMARK (SP);	444	PUSHMARK (SP);
248	EXTEND (SP, 1);
249
250	switch (req->type)
251	{
252	}
253		445
254	PUTBACK;	446	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	447	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	448	SPAGAIN;
257		449
258	FREETMPS;	450	FREETMPS;
259	LEAVE;	451	LEAVE;
		452
		453	return !SvTRUE (ERRSV);
260	}	454	}
261		455
262	return !SvTRUE (ERRSV);	456	return 1;
263	}	457	}
264		458
265	static void req_free (aio_req req)	459	static void req_free (bdb_req req)
266	{	460	{
		461	SvREFCNT_dec (req->callback);
		462
		463	SvREFCNT_dec (req->rsv1);
		464	SvREFCNT_dec (req->rsv2);
		465
		466	free (req->buf1);
		467	free (req->buf2);
		468	free (req->buf3);
		469
267	Safefree (req);	470	Safefree (req);
268	}	471	}
269		472
270	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);
271		482
272	static void start_thread (void)	483	static void start_thread (void)
273	{	484	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	485	worker *wrk = calloc (1, sizeof (worker));
278		486
279	if (!wrk)	487	if (!wrk)
280	croak ("unable to allocate worker thread data");	488	croak ("unable to allocate worker thread data");
281		489
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);	490	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	491	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	492	{
295	wrk->prev = &wrk_first;	493	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	494	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	495	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	496	wrk_first.next = wrk;
299	++started;	497	++started;
300	}	498	}
301	else	499	else
302	free (wrk);	500	free (wrk);
303		501
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	502	X_UNLOCK (wrklock);
306	}	503	}
307		504
308	static void maybe_start_thread ()	505	static void maybe_start_thread (void)
309	{	506	{
310	if (get_nthreads () >= wanted)	507	if (get_nthreads () >= wanted)
311	return;	508	return;
312		509
313	/* todo: maybe use idle here, but might be less exact */	510	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	512	return;
316		513
317	start_thread ();	514	start_thread ();
318	}	515	}
319		516
320	static void req_send (aio_req req)	517	static void req_send (bdb_req req)
321	{	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
322	++nreqs;	563	++nreqs;
323		564
324	LOCK (reqlock);	565	X_LOCK (reqlock);
325	++nready;	566	++nready;
326	reqq_push (&req_queue, req);	567	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	568	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	569	X_UNLOCK (reqlock);
329		570
330	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	}
331	}	580	}
332		581
333	static void end_thread (void)	582	static void end_thread (void)
334	{	583	{
335	aio_req req;	584	bdb_req req = calloc (1, sizeof (bdb_cb));
336
337	Newz (0, req, 1, aio_cb);
338		585
339	req->type = REQ_QUIT;	586	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	587	req->pri = PRI_MAX + PRI_BIAS;
341		588
342	LOCK (reqlock);	589	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	590	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	591	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	592	X_UNLOCK (reqlock);
346		593
347	LOCK (wrklock);	594	X_LOCK (wrklock);
348	--started;	595	--started;
349	UNLOCK (wrklock);	596	X_UNLOCK (wrklock);
350	}	597	}
351		598
352	static void set_max_idle (int nthreads)	599	static void set_max_idle (int nthreads)
353	{	600	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	601	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	602	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	603	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	604	}
358		605
359	static void min_parallel (int nthreads)	606	static void min_parallel (int nthreads)
360	{	607	{
361	if (wanted < nthreads)	608	if (wanted < nthreads)
…		…
369		616
370	while (started > wanted)	617	while (started > wanted)
371	end_thread ();	618	end_thread ();
372	}	619	}
373		620
374	static void poll_wait ()	621	static void poll_wait (void)
375	{	622	{
376	fd_set rfd;
377
378	while (nreqs)	623	while (nreqs)
379	{	624	{
380	int size;	625	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	626	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	627	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	628	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		629
385	if (size)	630	if (size)
386	return;	631	return;
387		632
388	maybe_start_thread ();	633	maybe_start_thread ();
389		634
390	FD_ZERO(&rfd);	635	s_epipe_wait (&respipe);
391	FD_SET(respipe [0], &rfd);
392
393	select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	636	}
395	}	637	}
396		638
397	static int poll_cb ()	639	static int poll_cb (void)
398	{	640	{
399	dSP;	641	dSP;
400	int count = 0;	642	int count = 0;
401	int maxreqs = max_poll_reqs;	643	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	644	int do_croak = 0;
403	struct timeval tv_start, tv_now;	645	struct timeval tv_start, tv_now;
404	aio_req req;	646	bdb_req req;
405		647
406	if (max_poll_time)	648	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	649	gettimeofday (&tv_start, 0);
408		650
409	for (;;)	651	for (;;)
410	{	652	{
411	for (;;)	653	for (;;)
412	{	654	{
413	maybe_start_thread ();	655	maybe_start_thread ();
414		656
415	LOCK (reslock);	657	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	658	req = reqq_shift (&res_queue);
417		659
418	if (req)	660	if (req)
419	{	661	{
420	--npending;	662	--npending;
421		663
422	if (!res_queue.size)	664	if (!res_queue.size)
423	{
424	/* read any signals sent by the worker threads */	665	/* read any signals sent by the worker threads */
425	char buf [4];	666	s_epipe_drain (&respipe);
426	while (read (respipe [0], buf, 4) == 4)
427	;
428	}
429	}	667	}
430		668
431	UNLOCK (reslock);	669	X_UNLOCK (reslock);
432		670
433	if (!req)	671	if (!req)
434	break;	672	break;
435		673
436	--nreqs;	674	--nreqs;
…		…
466	}	704	}
467		705
468	return count;	706	return count;
469	}	707	}
470		708
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	/*****************************************************************************/	709	/*****************************************************************************/
484		710
485	static void *aio_proc (void *thr_arg)	711	static void
		712	bdb_request (bdb_req req)
486	{	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	{
487	aio_req req;	883	bdb_req req;
488	struct timespec ts;	884	struct timespec ts;
489	worker *self = (worker *)thr_arg;	885	worker *self = (worker *)thr_arg;
490		886
491	/* try to distribute timeouts somewhat evenly */	887	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	888	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		889
495	for (;;)	890	for (;;)
496	{	891	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	892	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		893
499	LOCK (reqlock);	894	X_LOCK (reqlock);
500		895
501	for (;;)	896	for (;;)
502	{	897	{
503	self->req = req = reqq_shift (&req_queue);	898	self->req = req = reqq_shift (&req_queue);
504		899
505	if (req)	900	if (req)
506	break;	901	break;
507		902
508	++idle;	903	++idle;
509		904
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	905	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	906	== ETIMEDOUT)
512	{	907	{
513	if (idle > max_idle)	908	if (idle > max_idle)
514	{	909	{
515	--idle;	910	--idle;
516	UNLOCK (reqlock);	911	X_UNLOCK (reqlock);
517	LOCK (wrklock);	912	X_LOCK (wrklock);
518	--started;	913	--started;
519	UNLOCK (wrklock);	914	X_UNLOCK (wrklock);
520	goto quit;	915	goto quit;
521	}	916	}
522		917
523	/* we are allowed to idle, so do so without any timeout */	918	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	919	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	920	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	921	}
527		922
528	--idle;	923	--idle;
529	}	924	}
530		925
531	--nready;	926	--nready;
532		927
533	UNLOCK (reqlock);	928	X_UNLOCK (reqlock);
534
535	errno = 0; /* strictly unnecessary */
536		929
537	switch (req->type)	930	if (req->type == REQ_QUIT)
538	{	931	{
539	case REQ_QUIT:	932	X_LOCK (reslock);
		933	free (req);
		934	self->req = 0;
		935	X_UNLOCK (reslock);
		936
540	goto quit;	937	goto quit;
541
542	default:
543	//req->result = ENOSYS;
544	break;
545	}	938	}
546		939
547	//req->errorno = errno;	940	bdb_request (req);
548		941
549	LOCK (reslock);	942	X_LOCK (reslock);
550		943
551	++npending;	944	++npending;
552		945
553	if (!reqq_push (&res_queue, req))	946	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	947	s_epipe_signal (&respipe);
555	write (respipe [1], &respipe, 1);
556		948
557	self->req = 0;	949	self->req = 0;
558	worker_clear (self);	950	worker_clear (self);
559		951
560	UNLOCK (reslock);	952	X_UNLOCK (reslock);
561	}	953	}
562		954
563	quit:	955	quit:
564	LOCK (wrklock);	956	X_LOCK (wrklock);
565	worker_free (self);	957	worker_free (self);
566	UNLOCK (wrklock);	958	X_UNLOCK (wrklock);
567		959
568	return 0;	960	return 0;
569	}	961	}
570		962
571	/*****************************************************************************/	963	/*****************************************************************************/
572		964
573	static void atfork_prepare (void)	965	static void atfork_prepare (void)
574	{	966	{
575	LOCK (wrklock);	967	X_LOCK (wrklock);
576	LOCK (reqlock);	968	X_LOCK (reqlock);
577	LOCK (reslock);	969	X_LOCK (reslock);
578	}	970	}
579		971
580	static void atfork_parent (void)	972	static void atfork_parent (void)
581	{	973	{
582	UNLOCK (reslock);	974	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	975	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	976	X_UNLOCK (wrklock);
585	}	977	}
586		978
587	static void atfork_child (void)	979	static void atfork_child (void)
588	{	980	{
589	aio_req prv;	981	bdb_req prv;
590		982
591	while (prv = reqq_shift (&req_queue))	983	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	984	req_free (prv);
593		985
594	while (prv = reqq_shift (&res_queue))	986	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	1001	idle = 0;
610	nreqs = 0;	1002	nreqs = 0;
611	nready = 0;	1003	nready = 0;
612	npending = 0;	1004	npending = 0;
613		1005
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	1006	create_respipe ();
617		1007
618	atfork_parent ();	1008	atfork_parent ();
619	}	1009	}
620		1010
621	#define dREQ \	1011	#define dREQ(reqtype,rsvcnt) \
622	aio_req req; \	1012	bdb_req req; \
623	int req_pri = next_pri; \	1013	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	1014	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	1015	\
626	if (SvOK (callback) && !SvROK (callback)) \	1016	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	1017	croak ("callback has illegal type or extra arguments"); \
628	\	1018	\
629	Newz (0, req, 1, aio_cb); \	1019	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	1020	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	1021	croak ("out of memory during bdb_req allocation"); \
632	\	1022	\
633	req->callback = newSVsv (callback); \	1023	req->callback = SvREFCNT_inc (cb); \
		1024	req->type = (reqtype); \
634	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;
635		1029
636	#define REQ_SEND \	1030	#define REQ_SEND \
637	req_send (req); \	1031	req_send (req)
		1032
		1033	#define SvPTR(var, arg, type, stash, class, nullok) \
		1034	if (!SvOK (arg)) \
		1035	{ \
		1036	if (nullok != 1) \
		1037	croak (# var " must be a " # class " object, not undef"); \
638	\	1038	\
639	if (GIMME_V != G_VOID) \	1039	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1040	} \
641		1041	else if (SvSTASH (SvRV (arg)) == stash || sv_derived_from ((arg), # class)) \
		1042	{ \
		1043	IV tmp = SvIV ((SV*) SvRV (arg)); \
		1044	(var) = INT2PTR (type, tmp); \
		1045	if (!var && nullok != 2) \
		1046	croak (# var " is not a valid " # class " object anymore"); \
		1047	} \
		1048	else \
		1049	croak (# var " is not of type " # class);
		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
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1189	MODULE = BDB PACKAGE = BDB
643		1190
644	PROTOTYPES: ENABLE	1191	PROTOTYPES: ENABLE
645		1192
646	BOOT:	1193	BOOT:
647	{	1194	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1195	static const struct {
		1196	const char *name;
		1197	IV iv;
		1198	} *civ, const_iv[] = {
		1199	#define const_iv(name) { # name, (IV)DB_ ## name },
		1200	#if DBVER <= 408
		1201	const_iv (RPCCLIENT)
		1202	#endif
		1203	const_iv (INIT_CDB)
		1204	const_iv (INIT_LOCK)
		1205	const_iv (INIT_LOG)
		1206	const_iv (INIT_MPOOL)
		1207	const_iv (INIT_REP)
		1208	const_iv (INIT_TXN)
		1209	const_iv (RECOVER)
		1210	const_iv (INIT_TXN)
		1211	const_iv (RECOVER_FATAL)
		1212	const_iv (CREATE)
		1213	const_iv (RDONLY)
		1214	const_iv (USE_ENVIRON)
		1215	const_iv (USE_ENVIRON_ROOT)
		1216	const_iv (LOCKDOWN)
		1217	const_iv (PRIVATE)
		1218	const_iv (SYSTEM_MEM)
		1219	const_iv (AUTO_COMMIT)
		1220	const_iv (CDB_ALLDB)
		1221	const_iv (DIRECT_DB)
		1222	const_iv (NOLOCKING)
		1223	const_iv (NOMMAP)
		1224	const_iv (NOPANIC)
		1225	const_iv (OVERWRITE)
		1226	const_iv (PANIC_ENVIRONMENT)
		1227	const_iv (REGION_INIT)
		1228	const_iv (TIME_NOTGRANTED)
		1229	const_iv (TXN_NOSYNC)
		1230	const_iv (TXN_NOT_DURABLE)
		1231	const_iv (TXN_WRITE_NOSYNC)
		1232	const_iv (WRITECURSOR)
		1233	const_iv (YIELDCPU)
		1234	const_iv (ENCRYPT_AES)
		1235	#if DBVER < 408
		1236	const_iv (XA_CREATE)
		1237	#endif
		1238	const_iv (BTREE)
		1239	const_iv (HASH)
		1240	const_iv (QUEUE)
		1241	const_iv (RECNO)
		1242	const_iv (UNKNOWN)
		1243	const_iv (EXCL)
		1244	const_iv (TRUNCATE)
		1245	const_iv (NOSYNC)
		1246	const_iv (CHKSUM)
		1247	const_iv (ENCRYPT)
		1248	const_iv (DUP)
		1249	const_iv (DUPSORT)
		1250	//const_iv (RECNUM)
		1251	const_iv (RENUMBER)
		1252	const_iv (REVSPLITOFF)
		1253	const_iv (CONSUME)
		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)
		1259	const_iv (SNAPSHOT)
		1260	const_iv (JOIN_ITEM)
		1261	const_iv (JOIN_NOSORT)
		1262	const_iv (RMW)
649		1263
650	create_pipe ();	1264	const_iv (NOTFOUND)
		1265	const_iv (KEYEMPTY)
		1266	const_iv (LOCK_DEADLOCK)
		1267	const_iv (LOCK_NOTGRANTED)
		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	#if DBVER < 502
		1317	const_iv (NOSERVER_HOME)
		1318	const_iv (NOSERVER_ID)
		1319	#endif
		1320	const_iv (NOTFOUND)
		1321	const_iv (PAGE_NOTFOUND)
		1322	const_iv (REP_DUPMASTER)
		1323	const_iv (REP_HANDLE_DEAD)
		1324	const_iv (REP_HOLDELECTION)
		1325	const_iv (REP_ISPERM)
		1326	const_iv (REP_NEWMASTER)
		1327	const_iv (REP_NEWSITE)
		1328	const_iv (REP_NOTPERM)
		1329	const_iv (REP_UNAVAIL)
		1330	const_iv (RUNRECOVERY)
		1331	const_iv (SECONDARY_BAD)
		1332	const_iv (VERIFY_BAD)
		1333
		1334	const_iv (SALVAGE)
		1335	const_iv (AGGRESSIVE)
		1336	const_iv (PRINTABLE)
		1337	const_iv (NOORDERCHK)
		1338	const_iv (ORDERCHKONLY)
		1339
		1340	const_iv (ARCH_ABS)
		1341	const_iv (ARCH_DATA)
		1342	const_iv (ARCH_LOG)
		1343	const_iv (ARCH_REMOVE)
		1344
		1345	const_iv (VERB_DEADLOCK)
		1346	const_iv (VERB_RECOVERY)
		1347	const_iv (VERB_REPLICATION)
		1348	const_iv (VERB_WAITSFOR)
		1349
		1350	const_iv (VERSION_MAJOR)
		1351	const_iv (VERSION_MINOR)
		1352	const_iv (VERSION_PATCH)
		1353	const_iv (LOGVERSION)
		1354	const_iv (LOGOLDVER)
		1355	#if DBVER >= 403
		1356	const_iv (INORDER)
		1357	const_iv (LOCK_MAXWRITE)
		1358	const_iv (SEQ_DEC)
		1359	const_iv (SEQ_INC)
		1360	const_iv (SEQ_WRAP)
		1361	const_iv (BUFFER_SMALL)
		1362	const_iv (LOG_BUFFER_FULL)
		1363	const_iv (VERSION_MISMATCH)
		1364	#endif
		1365	#if DBVER >= 404
		1366	const_iv (REGISTER)
		1367	const_iv (DSYNC_DB)
		1368	const_iv (READ_COMMITTED)
		1369	const_iv (READ_UNCOMMITTED)
		1370	const_iv (REP_IGNORE)
		1371	const_iv (REP_LOCKOUT)
		1372	const_iv (REP_JOIN_FAILURE)
		1373	const_iv (FREE_SPACE)
		1374	const_iv (FREELIST_ONLY)
		1375	const_iv (VERB_REGISTER)
		1376	#endif
		1377	#if DBVER >= 405
		1378	const_iv (MULTIVERSION)
		1379	const_iv (TXN_SNAPSHOT)
		1380	#endif
		1381	#if DBVER >= 406
		1382	const_iv (PREV_DUP)
		1383	const_iv (PRIORITY_UNCHANGED)
		1384	const_iv (PRIORITY_VERY_LOW)
		1385	const_iv (PRIORITY_LOW)
		1386	const_iv (PRIORITY_DEFAULT)
		1387	const_iv (PRIORITY_HIGH)
		1388	const_iv (PRIORITY_VERY_HIGH)
		1389	const_iv (IGNORE_LEASE)
		1390	#endif
		1391	#if DBVER >= 407
		1392	//const_iv (MULTIPLE_KEY)
		1393	const_iv (LOG_DIRECT)
		1394	const_iv (LOG_DSYNC)
		1395	const_iv (LOG_AUTO_REMOVE)
		1396	const_iv (LOG_IN_MEMORY)
		1397	const_iv (LOG_ZERO)
		1398	#else
		1399	const_iv (DIRECT_LOG)
		1400	const_iv (LOG_AUTOREMOVE)
		1401	# if DBVER >= 403
		1402	const_iv (DSYNC_LOG)
		1403	const_iv (LOG_INMEMORY)
		1404	# endif
		1405	#if DBVER >= 408
		1406	const_iv (LOGVERSION_LATCHING)
		1407	#endif
		1408	#endif
		1409	};
		1410
		1411	bdb_stash = gv_stashpv ("BDB" , 1);
		1412	bdb_env_stash = gv_stashpv ("BDB::Env" , 1);
		1413	bdb_txn_stash = gv_stashpv ("BDB::Txn" , 1);
		1414	bdb_cursor_stash = gv_stashpv ("BDB::Cursor" , 1);
		1415	bdb_db_stash = gv_stashpv ("BDB::Db" , 1);
		1416	bdb_sequence_stash = gv_stashpv ("BDB::Sequence", 1);
		1417
		1418	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
		1419	newCONSTSUB (bdb_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
		1420
		1421	prepare_cb = &PL_sv_undef;
		1422
		1423	{
		1424	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1425	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1426
		1427	newCONSTSUB (bdb_stash, "VERSION_v", newSVpvn (vstring, 3));
		1428	}
		1429
		1430	newCONSTSUB (bdb_stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1431
		1432	create_respipe ();
		1433
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1434	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1435	patch_errno ();
652	}	1436	}
653		1437
654	void	1438	void
655	max_poll_reqs (int nreqs)	1439	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1440	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1469	max_outstanding = maxreqs;
686	OUTPUT:	1470	OUTPUT:
687	RETVAL	1471	RETVAL
688		1472
689	int	1473	int
690	bdbreq_pri (int pri = 0)	1474	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1475	PROTOTYPE: ;$
692	CODE:	1476	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1477	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1478	if (items > 0)
695	{	1479	{
…		…
699	}	1483	}
700	OUTPUT:	1484	OUTPUT:
701	RETVAL	1485	RETVAL
702		1486
703	void	1487	void
704	bdbreq_nice (int nice = 0)	1488	dbreq_nice (int nice = 0)
705	CODE:	1489	CODE:
706	nice = next_pri - nice;	1490	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1491	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1492	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1493	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1501	poll_wait ();
718	poll_cb ();	1502	poll_cb ();
719	}	1503	}
720		1504
721	int	1505	int
722	poll()	1506	poll ()
723	PROTOTYPE:	1507	PROTOTYPE:
724	CODE:	1508	CODE:
725	poll_wait ();	1509	poll_wait ();
726	RETVAL = poll_cb ();	1510	RETVAL = poll_cb ();
727	OUTPUT:	1511	OUTPUT:
728	RETVAL	1512	RETVAL
729		1513
730	int	1514	int
731	poll_fileno()	1515	poll_fileno ()
732	PROTOTYPE:	1516	PROTOTYPE:
733	CODE:	1517	CODE:
734	RETVAL = respipe [0];	1518	RETVAL = s_epipe_fd (&respipe);
735	OUTPUT:	1519	OUTPUT:
736	RETVAL	1520	RETVAL
737		1521
738	int	1522	int
739	poll_cb(...)	1523	poll_cb (...)
740	PROTOTYPE:	1524	PROTOTYPE:
741	CODE:	1525	CODE:
742	RETVAL = poll_cb ();	1526	RETVAL = poll_cb ();
743	OUTPUT:	1527	OUTPUT:
744	RETVAL	1528	RETVAL
745		1529
746	void	1530	void
747	poll_wait()	1531	poll_wait ()
748	PROTOTYPE:	1532	PROTOTYPE:
749	CODE:	1533	CODE:
750	poll_wait ();	1534	poll_wait ();
751		1535
752	int	1536	int
753	nreqs()	1537	nreqs ()
754	PROTOTYPE:	1538	PROTOTYPE:
755	CODE:	1539	CODE:
756	RETVAL = nreqs;	1540	RETVAL = nreqs;
757	OUTPUT:	1541	OUTPUT:
758	RETVAL	1542	RETVAL
759		1543
760	int	1544	int
761	nready()	1545	nready ()
762	PROTOTYPE:	1546	PROTOTYPE:
763	CODE:	1547	CODE:
764	RETVAL = get_nready ();	1548	RETVAL = get_nready ();
765	OUTPUT:	1549	OUTPUT:
766	RETVAL	1550	RETVAL
767		1551
768	int	1552	int
769	npending()	1553	npending ()
770	PROTOTYPE:	1554	PROTOTYPE:
771	CODE:	1555	CODE:
772	RETVAL = get_npending ();	1556	RETVAL = get_npending ();
773	OUTPUT:	1557	OUTPUT:
774	RETVAL	1558	RETVAL
775		1559
776	int	1560	int
777	nthreads()	1561	nthreads ()
778	PROTOTYPE:	1562	PROTOTYPE:
779	CODE:	1563	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1564	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1565	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1566	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1567	OUTPUT:
784	RETVAL	1568	RETVAL
785		1569
		1570	SV *
		1571	set_sync_prepare (SV *cb)
		1572	PROTOTYPE: &
		1573	CODE:
		1574	RETVAL = prepare_cb;
		1575	prepare_cb = newSVsv (cb);
		1576	OUTPUT:
		1577	RETVAL
786		1578
		1579	char *
		1580	strerror (int errorno = errno)
		1581	PROTOTYPE: ;$
		1582	CODE:
		1583	RETVAL = db_strerror (errorno);
		1584	OUTPUT:
		1585	RETVAL
		1586
		1587	void _on_next_submit (SV *cb)
		1588	CODE:
		1589	SvREFCNT_dec (on_next_submit);
		1590	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1591
		1592	DB_ENV *
		1593	db_env_create (U32 env_flags = 0)
		1594	CODE:
		1595	{
		1596	errno = db_env_create (&RETVAL, env_flags);
		1597	if (errno)
		1598	croak ("db_env_create: %s", db_strerror (errno));
		1599
		1600	if (0)
		1601	{
		1602	RETVAL->set_errcall (RETVAL, debug_errcall);
		1603	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1604	}
		1605	}
		1606	OUTPUT:
		1607	RETVAL
		1608
		1609	void
		1610	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1611	PREINIT:
		1612	CALLBACK
		1613	CODE:
		1614	{
		1615	dREQ (REQ_ENV_OPEN, 1);
		1616	req->env = env;
		1617	req->uint1 = open_flags | DB_THREAD;
		1618	req->int1 = mode;
		1619	req->buf1 = strdup_ornull (db_home);
		1620	REQ_SEND;
		1621	}
		1622
		1623	void
		1624	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1625	PREINIT:
		1626	CALLBACK
		1627	CODE:
		1628	{
		1629	dREQ (REQ_ENV_CLOSE, 0);
		1630	ptr_nuke (ST (0));
		1631	req->env = env;
		1632	req->uint1 = flags;
		1633	REQ_SEND;
		1634	}
		1635
		1636	void
		1637	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1638	PREINIT:
		1639	CALLBACK
		1640	CODE:
		1641	{
		1642	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1643	req->env = env;
		1644	req->uint1 = kbyte;
		1645	req->int1 = min;
		1646	req->uint2 = flags;
		1647	REQ_SEND;
		1648	}
		1649
		1650	void
		1651	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1652	PREINIT:
		1653	CALLBACK
		1654	CODE:
		1655	{
		1656	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1657	req->env = env;
		1658	req->uint1 = flags;
		1659	req->uint2 = atype;
		1660	/* req->int2 = 0; dummy */
		1661	REQ_SEND;
		1662	}
		1663
		1664	void
		1665	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1666	PREINIT:
		1667	CALLBACK
		1668	CODE:
		1669	{
		1670	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1671	req->env = env;
		1672	REQ_SEND;
		1673	}
		1674
		1675	void
		1676	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1677	PREINIT:
		1678	CALLBACK
		1679	CODE:
		1680	{
		1681	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1682	req->env = env;
		1683	req->int1 = percent;
		1684	REQ_SEND;
		1685	}
		1686
		1687	void
		1688	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1689	PREINIT:
		1690	CALLBACK
		1691	CODE:
		1692	{
		1693	dREQ (REQ_ENV_DBREMOVE, 2);
		1694	req->env = env;
		1695	req->buf1 = strdup_ornull (file);
		1696	req->buf2 = strdup_ornull (database);
		1697	req->uint1 = flags;
		1698	REQ_SEND;
		1699	}
		1700
		1701	void
		1702	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)
		1703	PREINIT:
		1704	CALLBACK
		1705	CODE:
		1706	{
		1707	dREQ (REQ_ENV_DBRENAME, 2);
		1708	req->env = env;
		1709	req->buf1 = strdup_ornull (file);
		1710	req->buf2 = strdup_ornull (database);
		1711	req->buf3 = strdup_ornull (newname);
		1712	req->uint1 = flags;
		1713	REQ_SEND;
		1714	}
		1715
		1716	void
		1717	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1718	PREINIT:
		1719	CALLBACK
		1720	CODE:
		1721	{
		1722	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1723	req->sv1 = SvREFCNT_inc (listp);
		1724	req->env = env;
		1725	req->uint1 = flags;
		1726	REQ_SEND;
		1727	}
		1728
		1729	DB *
		1730	db_create (DB_ENV *env = 0, U32 flags = 0)
		1731	CODE:
		1732	{
		1733	errno = db_create (&RETVAL, env, flags);
		1734	if (errno)
		1735	croak ("db_create: %s", db_strerror (errno));
		1736
		1737	if (RETVAL)
		1738	RETVAL->app_private = (void *)newSVsv (ST (0));
		1739	}
		1740	OUTPUT:
		1741	RETVAL
		1742
		1743	void
		1744	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1745	PREINIT:
		1746	CALLBACK
		1747	CODE:
		1748	{
		1749	dREQ (REQ_DB_OPEN, 2);
		1750	req->db = db;
		1751	req->txn = txnid;
		1752	req->buf1 = strdup_ornull (file);
		1753	req->buf2 = strdup_ornull (database);
		1754	req->int1 = type;
		1755	req->uint1 = flags | DB_THREAD;
		1756	req->int2 = mode;
		1757	REQ_SEND;
		1758	}
		1759
		1760	void
		1761	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1762	PREINIT:
		1763	CALLBACK
		1764	CODE:
		1765	{
		1766	dREQ (REQ_DB_CLOSE, 0);
		1767	ptr_nuke (ST (0));
		1768	req->db = db;
		1769	req->uint1 = flags;
		1770	req->sv1 = (SV *)db->app_private;
		1771	REQ_SEND;
		1772	}
		1773
		1774	#if DBVER >= 404
		1775
		1776	void
		1777	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)
		1778	PREINIT:
		1779	CALLBACK
		1780	CODE:
		1781	{
		1782	dREQ (REQ_DB_COMPACT, 2);
		1783	req->db = db;
		1784	req->txn = txn;
		1785	if (start) sv_to_dbt (&req->dbt1, start);
		1786	if (stop ) sv_to_dbt (&req->dbt2, stop );
		1787	req->uint1 = flags;
		1788	REQ_SEND;
		1789	}
		1790
		1791	#endif
		1792
		1793	void
		1794	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1795	PREINIT:
		1796	CALLBACK
		1797	CODE:
		1798	{
		1799	dREQ (REQ_DB_SYNC, 1);
		1800	req->db = db;
		1801	req->uint1 = flags;
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
		1806	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1807	PREINIT:
		1808	CALLBACK
		1809	CODE:
		1810	{
		1811	dREQ (REQ_DB_VERIFY, 1);
		1812	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
		1813	req->db = db;
		1814	req->buf1 = strdup (file);
		1815	req->buf2 = strdup_ornull (database);
		1816	req->uint1 = flags;
		1817	REQ_SEND;
		1818	}
		1819
		1820	void
		1821	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1822	PREINIT:
		1823	CALLBACK
		1824	CODE:
		1825	{
		1826	dREQ (REQ_DB_UPGRADE, 1);
		1827	req->db = db;
		1828	req->buf1 = strdup (file);
		1829	req->uint1 = flags;
		1830	REQ_SEND;
		1831	}
		1832
		1833	void
		1834	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1835	PREINIT:
		1836	CALLBACK
		1837	CODE:
		1838	{
		1839	dREQ (REQ_DB_KEY_RANGE, 2);
		1840	req->db = db;
		1841	req->txn = txn;
		1842	sv_to_dbt (&req->dbt1, key);
		1843	req->uint1 = flags;
		1844	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1845	REQ_SEND;
		1846	}
		1847
		1848	void
		1849	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1850	PREINIT:
		1851	CALLBACK
		1852	CODE:
		1853	{
		1854	dREQ (REQ_DB_PUT, 2);
		1855	req->db = db;
		1856	req->txn = txn;
		1857	sv_to_dbt (&req->dbt1, key);
		1858	sv_to_dbt (&req->dbt2, data);
		1859	req->uint1 = flags;
		1860	REQ_SEND;
		1861	}
		1862
		1863	#if DBVER >= 406
		1864
		1865	void
		1866	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1867	PREINIT:
		1868	CALLBACK
		1869	CODE:
		1870	{
		1871	dREQ (REQ_DB_EXISTS, 2);
		1872	req->db = db;
		1873	req->txn = txn;
		1874	req->uint1 = flags;
		1875	sv_to_dbt (&req->dbt1, key);
		1876	REQ_SEND;
		1877	}
		1878
		1879	#endif
		1880
		1881	void
		1882	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1883	PREINIT:
		1884	CALLBACK
		1885	CODE:
		1886	{
		1887	//TODO: key is somtimesmutable
		1888	dREQ (REQ_DB_GET, 2);
		1889	req->db = db;
		1890	req->txn = txn;
		1891	req->uint1 = flags;
		1892	sv_to_dbt (&req->dbt1, key);
		1893	req->dbt3.flags = DB_DBT_MALLOC;
		1894	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1895	REQ_SEND;
		1896	}
		1897
		1898	void
		1899	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1900	PREINIT:
		1901	CALLBACK
		1902	CODE:
		1903	{
		1904	//TODO: key is somtimesmutable
		1905	dREQ (REQ_DB_PGET, 2);
		1906	req->db = db;
		1907	req->txn = txn;
		1908	req->uint1 = flags;
		1909
		1910	sv_to_dbt (&req->dbt1, key);
		1911
		1912	req->dbt2.flags = DB_DBT_MALLOC;
		1913	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1914
		1915	req->dbt3.flags = DB_DBT_MALLOC;
		1916	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1917	REQ_SEND;
		1918	}
		1919
		1920	void
		1921	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1922	PREINIT:
		1923	CALLBACK
		1924	CODE:
		1925	{
		1926	dREQ (REQ_DB_DEL, 2);
		1927	req->db = db;
		1928	req->txn = txn;
		1929	req->uint1 = flags;
		1930	sv_to_dbt (&req->dbt1, key);
		1931	REQ_SEND;
		1932	}
		1933
		1934	void
		1935	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1936	PREINIT:
		1937	CALLBACK
		1938	CODE:
		1939	{
		1940	dREQ (REQ_TXN_COMMIT, 0);
		1941	ptr_nuke (ST (0));
		1942	req->txn = txn;
		1943	req->uint1 = flags;
		1944	REQ_SEND;
		1945	}
		1946
		1947	void
		1948	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1949	PREINIT:
		1950	CALLBACK
		1951	CODE:
		1952	{
		1953	dREQ (REQ_TXN_ABORT, 0);
		1954	ptr_nuke (ST (0));
		1955	req->txn = txn;
		1956	REQ_SEND;
		1957	}
		1958
		1959	void
		1960	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1961	PREINIT:
		1962	CALLBACK
		1963	CODE:
		1964	{
		1965	dREQ (REQ_TXN_FINISH, 0);
		1966	ptr_nuke (ST (0));
		1967	req->txn = txn;
		1968	req->uint1 = flags;
		1969	REQ_SEND;
		1970	}
		1971
		1972	void
		1973	db_c_close (DBC *dbc, SV *callback = 0)
		1974	PREINIT:
		1975	CALLBACK
		1976	CODE:
		1977	{
		1978	dREQ (REQ_C_CLOSE, 0);
		1979	ptr_nuke (ST (0));
		1980	req->dbc = dbc;
		1981	REQ_SEND;
		1982	}
		1983
		1984	void
		1985	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1986	PREINIT:
		1987	CALLBACK
		1988	CODE:
		1989	{
		1990	dREQ (REQ_C_COUNT, 1);
		1991	req->dbc = dbc;
		1992	req->sv1 = SvREFCNT_inc (count);
		1993	REQ_SEND;
		1994	}
		1995
		1996	void
		1997	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1998	PREINIT:
		1999	CALLBACK
		2000	CODE:
		2001	{
		2002	dREQ (REQ_C_PUT, 1);
		2003	req->dbc = dbc;
		2004	sv_to_dbt (&req->dbt1, key);
		2005	sv_to_dbt (&req->dbt2, data);
		2006	req->uint1 = flags;
		2007	REQ_SEND;
		2008	}
		2009
		2010	void
		2011	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2012	PREINIT:
		2013	CALLBACK
		2014	CODE:
		2015	{
		2016	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2017	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2018	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2019	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2020	"key",
		2021	"BDB::db_c_get");
		2022
		2023	{
		2024	dREQ (REQ_C_GET, 1);
		2025	req->dbc = dbc;
		2026	req->uint1 = flags;
		2027	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2028	sv_to_dbt (&req->dbt1, key);
		2029	else
		2030	{
		2031	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2032	sv_to_dbt (&req->dbt1, key);
		2033	else
		2034	req->dbt1.flags = DB_DBT_MALLOC;
		2035
		2036	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2037	}
		2038
		2039	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2040	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2041	sv_to_dbt (&req->dbt3, data);
		2042	else
		2043	req->dbt3.flags = DB_DBT_MALLOC;
		2044
		2045	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2046	REQ_SEND;
		2047	}
		2048	}
		2049
		2050	void
		2051	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2052	PREINIT:
		2053	CALLBACK
		2054	CODE:
		2055	{
		2056	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2057	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2058	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2059	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2060	"key",
		2061	"BDB::db_c_pget");
		2062
		2063	{
		2064	dREQ (REQ_C_PGET, 1);
		2065	req->dbc = dbc;
		2066	req->uint1 = flags;
		2067	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2068	sv_to_dbt (&req->dbt1, key);
		2069	else
		2070	{
		2071	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2072	sv_to_dbt (&req->dbt1, key);
		2073	else
		2074	req->dbt1.flags = DB_DBT_MALLOC;
		2075
		2076	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2077	}
		2078
		2079	req->dbt2.flags = DB_DBT_MALLOC;
		2080	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2081
		2082	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2083	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2084	sv_to_dbt (&req->dbt3, data);
		2085	else
		2086	req->dbt3.flags = DB_DBT_MALLOC;
		2087
		2088	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2089	REQ_SEND;
		2090	}
		2091	}
		2092
		2093	void
		2094	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2095	PREINIT:
		2096	CALLBACK
		2097	CODE:
		2098	{
		2099	dREQ (REQ_C_DEL, 1);
		2100	req->dbc = dbc;
		2101	req->uint1 = flags;
		2102	REQ_SEND;
		2103	}
		2104
		2105
		2106	#if DBVER >= 403
		2107
		2108	void
		2109	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2110	PREINIT:
		2111	CALLBACK
		2112	CODE:
		2113	{
		2114	dREQ (REQ_SEQ_OPEN, 2);
		2115	req->seq = seq;
		2116	req->txn = txnid;
		2117	req->uint1 = flags | DB_THREAD;
		2118	sv_to_dbt (&req->dbt1, key);
		2119	REQ_SEND;
		2120	}
		2121
		2122	void
		2123	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2124	PREINIT:
		2125	CALLBACK
		2126	CODE:
		2127	{
		2128	dREQ (REQ_SEQ_CLOSE, 0);
		2129	ptr_nuke (ST (0));
		2130	req->seq = seq;
		2131	req->uint1 = flags;
		2132	REQ_SEND;
		2133	}
		2134
		2135	void
		2136	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2137	PREINIT:
		2138	CALLBACK
		2139	CODE:
		2140	{
		2141	dREQ (REQ_SEQ_GET, 2);
		2142	req->seq = seq;
		2143	req->txn = txnid;
		2144	req->int1 = delta;
		2145	req->uint1 = flags;
		2146	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2147	REQ_SEND;
		2148	}
		2149
		2150	void
		2151	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2152	PREINIT:
		2153	CALLBACK
		2154	CODE:
		2155	{
		2156	dREQ (REQ_SEQ_REMOVE, 2);
		2157	req->seq = seq;
		2158	req->txn = txnid;
		2159	req->uint1 = flags;
		2160	REQ_SEND;
		2161	}
		2162
		2163	#endif
		2164
		2165
		2166	MODULE = BDB PACKAGE = BDB::Env
		2167
		2168	void
		2169	DESTROY (DB_ENV_ornuked *env)
		2170	CODE:
		2171	if (env)
		2172	env->close (env, 0);
		2173
		2174	int set_data_dir (DB_ENV *env, const char *dir)
		2175	CODE:
		2176	RETVAL = env->set_data_dir (env, dir);
		2177	OUTPUT:
		2178	RETVAL
		2179
		2180	int set_tmp_dir (DB_ENV *env, const char *dir)
		2181	CODE:
		2182	RETVAL = env->set_tmp_dir (env, dir);
		2183	OUTPUT:
		2184	RETVAL
		2185
		2186	int set_lg_dir (DB_ENV *env, const char *dir)
		2187	CODE:
		2188	RETVAL = env->set_lg_dir (env, dir);
		2189	OUTPUT:
		2190	RETVAL
		2191
		2192	int set_shm_key (DB_ENV *env, long shm_key)
		2193	CODE:
		2194	RETVAL = env->set_shm_key (env, shm_key);
		2195	OUTPUT:
		2196	RETVAL
		2197
		2198	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2199	CODE:
		2200	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2201	OUTPUT:
		2202	RETVAL
		2203
		2204	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2205	CODE:
		2206	RETVAL = env->set_flags (env, flags, onoff);
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	#if DBVER >= 407
		2211
		2212	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2213	CODE:
		2214	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2219	CODE:
		2220	RETVAL = env->log_set_config (env, flags, onoff);
		2221	OUTPUT:
		2222	RETVAL
		2223
		2224	#endif
		2225
		2226
		2227	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2228	CODE:
		2229	env->set_errfile (env, errfile);
		2230
		2231	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2232	CODE:
		2233	env->set_msgfile (env, msgfile);
		2234
		2235	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2236	CODE:
		2237	RETVAL = env->set_verbose (env, which, onoff);
		2238	OUTPUT:
		2239	RETVAL
		2240
		2241	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2242	CODE:
		2243	RETVAL = env->set_encrypt (env, password, flags);
		2244	OUTPUT:
		2245	RETVAL
		2246
		2247	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2248	CODE:
		2249	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2250	OUTPUT:
		2251	RETVAL
		2252
		2253	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2254	CODE:
		2255	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2256	OUTPUT:
		2257	RETVAL
		2258
		2259	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2260	CODE:
		2261	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2262	OUTPUT:
		2263	RETVAL
		2264
		2265	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2266	CODE:
		2267	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2268	OUTPUT:
		2269	RETVAL
		2270
		2271	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2272	CODE:
		2273	RETVAL = env->set_lk_detect (env, detect);
		2274	OUTPUT:
		2275	RETVAL
		2276
		2277	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2278	CODE:
		2279	RETVAL = env->set_lk_max_lockers (env, max);
		2280	OUTPUT:
		2281	RETVAL
		2282
		2283	int set_lk_max_locks (DB_ENV *env, U32 max)
		2284	CODE:
		2285	RETVAL = env->set_lk_max_locks (env, max);
		2286	OUTPUT:
		2287	RETVAL
		2288
		2289	int set_lk_max_objects (DB_ENV *env, U32 max)
		2290	CODE:
		2291	RETVAL = env->set_lk_max_objects (env, max);
		2292	OUTPUT:
		2293	RETVAL
		2294
		2295	int set_lg_bsize (DB_ENV *env, U32 max)
		2296	CODE:
		2297	RETVAL = env->set_lg_bsize (env, max);
		2298	OUTPUT:
		2299	RETVAL
		2300
		2301	int set_lg_max (DB_ENV *env, U32 max)
		2302	CODE:
		2303	RETVAL = env->set_lg_max (env, max);
		2304	OUTPUT:
		2305	RETVAL
		2306
		2307	#if DBVER >= 404
		2308
		2309	int mutex_set_max (DB_ENV *env, U32 max)
		2310	CODE:
		2311	RETVAL = env->mutex_set_max (env, max);
		2312	OUTPUT:
		2313	RETVAL
		2314
		2315	int mutex_set_increment (DB_ENV *env, U32 increment)
		2316	CODE:
		2317	RETVAL = env->mutex_set_increment (env, increment);
		2318	OUTPUT:
		2319	RETVAL
		2320
		2321	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2322	CODE:
		2323	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2324	OUTPUT:
		2325	RETVAL
		2326
		2327	int mutex_set_align (DB_ENV *env, U32 align)
		2328	CODE:
		2329	RETVAL = env->mutex_set_align (env, align);
		2330	OUTPUT:
		2331	RETVAL
		2332
		2333	#endif
		2334
		2335	DB_TXN *
		2336	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2337	CODE:
		2338	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2339	if (errno)
		2340	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	#if DBVER >= 405
		2345
		2346	DB_TXN *
		2347	cdsgroup_begin (DB_ENV *env)
		2348	CODE:
		2349	errno = env->cdsgroup_begin (env, &RETVAL);
		2350	if (errno)
		2351	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2352	OUTPUT:
		2353	RETVAL
		2354
		2355	#endif
		2356
		2357	MODULE = BDB PACKAGE = BDB::Db
		2358
		2359	void
		2360	DESTROY (DB_ornuked *db)
		2361	CODE:
		2362	if (db)
		2363	{
		2364	SV *env = (SV *)db->app_private;
		2365	db->close (db, 0);
		2366	SvREFCNT_dec (env);
		2367	}
		2368
		2369	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2370	CODE:
		2371	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2372	OUTPUT:
		2373	RETVAL
		2374
		2375	int set_pagesize (DB *db, U32 pagesize)
		2376	CODE:
		2377	RETVAL = db->set_pagesize (db, pagesize);
		2378	OUTPUT:
		2379	RETVAL
		2380
		2381	int set_flags (DB *db, U32 flags)
		2382	CODE:
		2383	RETVAL = db->set_flags (db, flags);
		2384	OUTPUT:
		2385	RETVAL
		2386
		2387	int set_encrypt (DB *db, const char *password, U32 flags)
		2388	CODE:
		2389	RETVAL = db->set_encrypt (db, password, flags);
		2390	OUTPUT:
		2391	RETVAL
		2392
		2393	int set_lorder (DB *db, int lorder)
		2394	CODE:
		2395	RETVAL = db->set_lorder (db, lorder);
		2396	OUTPUT:
		2397	RETVAL
		2398
		2399	int set_bt_minkey (DB *db, U32 minkey)
		2400	CODE:
		2401	RETVAL = db->set_bt_minkey (db, minkey);
		2402	OUTPUT:
		2403	RETVAL
		2404
		2405	int set_re_delim (DB *db, int delim)
		2406	CODE:
		2407	RETVAL = db->set_re_delim (db, delim);
		2408	OUTPUT:
		2409	RETVAL
		2410
		2411	int set_re_pad (DB *db, int re_pad)
		2412	CODE:
		2413	RETVAL = db->set_re_pad (db, re_pad);
		2414	OUTPUT:
		2415	RETVAL
		2416
		2417	int set_re_source (DB *db, char *source)
		2418	CODE:
		2419	RETVAL = db->set_re_source (db, source);
		2420	OUTPUT:
		2421	RETVAL
		2422
		2423	int set_re_len (DB *db, U32 re_len)
		2424	CODE:
		2425	RETVAL = db->set_re_len (db, re_len);
		2426	OUTPUT:
		2427	RETVAL
		2428
		2429	int set_h_ffactor (DB *db, U32 h_ffactor)
		2430	CODE:
		2431	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2432	OUTPUT:
		2433	RETVAL
		2434
		2435	int set_h_nelem (DB *db, U32 h_nelem)
		2436	CODE:
		2437	RETVAL = db->set_h_nelem (db, h_nelem);
		2438	OUTPUT:
		2439	RETVAL
		2440
		2441	int set_q_extentsize (DB *db, U32 extentsize)
		2442	CODE:
		2443	RETVAL = db->set_q_extentsize (db, extentsize);
		2444	OUTPUT:
		2445	RETVAL
		2446
		2447	DBC *
		2448	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2449	CODE:
		2450	errno = db->cursor (db, txn, &RETVAL, flags);
		2451	if (errno)
		2452	croak ("DB->cursor: %s", db_strerror (errno));
		2453	OUTPUT:
		2454	RETVAL
		2455
		2456	#if DBVER >= 403
		2457
		2458	DB_SEQUENCE *
		2459	sequence (DB *db, U32 flags = 0)
		2460	CODE:
		2461	{
		2462	errno = db_sequence_create (&RETVAL, db, flags);
		2463	if (errno)
		2464	croak ("db_sequence_create: %s", db_strerror (errno));
		2465	}
		2466	OUTPUT:
		2467	RETVAL
		2468
		2469	#endif
		2470
		2471
		2472	MODULE = BDB PACKAGE = BDB::Txn
		2473
		2474	void
		2475	DESTROY (DB_TXN_ornuked *txn)
		2476	CODE:
		2477	if (txn)
		2478	txn->abort (txn);
		2479
		2480	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2481	CODE:
		2482	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2483	OUTPUT:
		2484	RETVAL
		2485
		2486	int failed (DB_TXN *txn)
		2487	CODE:
		2488	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2489	OUTPUT:
		2490	RETVAL
		2491
		2492
		2493	MODULE = BDB PACKAGE = BDB::Cursor
		2494
		2495	void
		2496	DESTROY (DBC_ornuked *dbc)
		2497	CODE:
		2498	if (dbc)
		2499	dbc->c_close (dbc);
		2500
		2501	#if DBVER >= 406
		2502
		2503	int set_priority (DBC *dbc, int priority)
		2504	CODE:
		2505	dbc->set_priority (dbc, priority);
		2506
		2507	#endif
		2508
		2509	#if DBVER >= 403
		2510
		2511	MODULE = BDB PACKAGE = BDB::Sequence
		2512
		2513	void
		2514	DESTROY (DB_SEQUENCE_ornuked *seq)
		2515	CODE:
		2516	if (seq)
		2517	seq->close (seq, 0);
		2518
		2519	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2520	CODE:
		2521	RETVAL = seq->initial_value (seq, value);
		2522	OUTPUT:
		2523	RETVAL
		2524
		2525	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2526	CODE:
		2527	RETVAL = seq->set_cachesize (seq, size);
		2528	OUTPUT:
		2529	RETVAL
		2530
		2531	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2532	CODE:
		2533	RETVAL = seq->set_flags (seq, flags);
		2534	OUTPUT:
		2535	RETVAL
		2536
		2537	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2538	CODE:
		2539	RETVAL = seq->set_range (seq, min, max);
		2540	OUTPUT:
		2541	RETVAL
		2542
		2543	#endif
		2544
		2545

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