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Comparing BDB/BDB.xs (file contents):
Revision 1.2 by root, Mon Feb 5 20:21:38 2007 UTC vs.
Revision 1.68 by root, Tue Jul 14 19:29:23 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 macros, breaking
		14	// lots and lots of code.
		15	#undef open
		16	#undef close
		17	#undef abort
		18	#undef malloc
		19	#undef free
		20	#undef send
18		21
19	#include <stddef.h>	22	#include <stddef.h>
20	#include <stdlib.h>	23	#include <stdlib.h>
21	#include <errno.h>	24	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	25	#include <sys/types.h>
24	#include <limits.h>	26	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	27	#include <fcntl.h>
27		28
		29	#ifndef _WIN32
		30	# include <sys/time.h>
		31	# include <unistd.h>
		32	#endif
		33
28	#include <db.h>	34	#include <db.h>
		35
		36	#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
29		39
30	/* number of seconds after which idle threads exit */	40	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	41	#define IDLE_TIMEOUT 10
32		42
33	/* wether word reads are potentially non-atomic.	43	typedef SV SV_mutable;
34	* this is conservatice, likely most arches this runs	44
35	* on have atomic word read/writes.	45	typedef DB_ENV DB_ENV_ornull;
36	*/	46	typedef DB_TXN DB_TXN_ornull;
37	#ifndef WORDACCESS_UNSAFE	47	typedef DBC DBC_ornull;
38	# if __i386 || __x86_64	48	typedef DB DB_ornull;
39	# define WORDACCESS_UNSAFE 0	49
40	# else	50	typedef DB_ENV DB_ENV_ornuked;
41	# 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;
42	# endif	58	#endif
43	#endif
44		59
45	typedef SV SV8; /* byte-sv, used for argument-checking */	60	typedef char *bdb_filename;
46		61
		62	static SV *prepare_cb;
		63
		64	#if DB_VERSION_MINOR >= 6
		65	# define c_close close
		66	# define c_count count
		67	# define c_del del
		68	# define c_dup dup
		69	# define c_get get
		70	# define c_pget pget
		71	# define c_put put
		72	#endif
		73
		74	static char *
		75	get_bdb_filename (SV *sv)
		76	{
		77	if (!SvOK (sv))
		78	return 0;
		79
		80	#if _WIN32
		81	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		82	{
		83	STRLEN len;
		84	char *src = SvPVbyte (sv, len);
		85	SV *t1 = sv_newmortal ();
		86	SV *t2 = sv_newmortal ();
		87
		88	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		89	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		90
		91	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		92	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		93	SvPOK_only (t2);
		94	SvPVX (t2)[len] = 0;
		95	SvCUR_set (t2, len);
		96
		97	return SvPVX (t2);
		98	}
		99	#else
		100	return SvPVbyte_nolen (sv);
		101	#endif
		102	}
		103
		104	static void
		105	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		106	{
		107	printf ("err[%s]\n", msg);
		108	}
		109
		110	static void
		111	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		112	{
		113	printf ("msg[%s]\n", msg);
		114	}
		115
		116	static char *
		117	strdup_ornull (const char *s)
		118	{
		119	return s ? strdup (s) : 0;
		120	}
		121
		122	static void
		123	sv_to_dbt (DBT *dbt, SV *sv)
		124	{
		125	STRLEN len;
		126	char *data = SvPVbyte (sv, len);
		127
		128	dbt->data = malloc (len);
		129	memcpy (dbt->data, data, len);
		130	dbt->size = len;
		131	dbt->flags = DB_DBT_REALLOC;
		132	}
		133
		134	static void
		135	dbt_to_sv (SV *sv, DBT *dbt)
		136	{
		137	if (sv)
		138	{
		139	SvREADONLY_off (sv);
		140
		141	if (dbt->data)
		142	sv_setpvn_mg (sv, dbt->data, dbt->size);
		143	else
		144	sv_setsv_mg (sv, &PL_sv_undef);
		145
		146	SvREFCNT_dec (sv);
		147	}
		148
		149	free (dbt->data);
		150	}
		151
47	enum	152	enum {
48	{
49	REQ_QUIT,	153	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	154	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	155	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		156	REQ_ENV_LOG_ARCHIVE,
		157	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_VERIFY, REQ_DB_UPGRADE,
		158	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		159	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		160	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		161	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	162	};
53		163
54	typedef struct aio_cb	164	typedef struct bdb_cb
55	{	165	{
56	struct aio_cb *volatile next;	166	struct bdb_cb *volatile next;
57	SV *callback;	167	SV *callback;
58	int type, pri, errorno;	168	int type, pri, result;
59		169
60	DB_ENV *env;	170	DB_ENV *env;
61	DB *db;	171	DB *db;
62	DB_TXN *txn;	172	DB_TXN *txn;
63	DBC *cursor;	173	DBC *dbc;
		174
		175	UV uv1;
64	int int1, int2;	176	int int1, int2;
65	U32 uint1, uint2;	177	U32 uint1, uint2;
66	char *buf1, *buf2;	178	char *buf1, *buf2, *buf3;
67	} aio_cb;	179	SV *sv1, *sv2, *sv3;
68		180
		181	DBT dbt1, dbt2, dbt3;
		182	DB_KEY_RANGE key_range;
		183	#if DB_VERSION_MINOR >= 3
		184	DB_SEQUENCE *seq;
		185	db_seq_t seq_t;
		186	#endif
		187
		188	SV *rsv1, *rsv2; // keep some request objects alive
		189	} bdb_cb;
		190
69	typedef aio_cb *aio_req;	191	typedef bdb_cb *bdb_req;
70		192
71	enum {	193	enum {
72	PRI_MIN = -4,	194	PRI_MIN = -4,
73	PRI_MAX = 4,	195	PRI_MAX = 4,
74		196
…		…
77	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	199	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
78	};	200	};
79		201
80	#define AIO_TICKS ((1000000 + 1023) >> 10)	202	#define AIO_TICKS ((1000000 + 1023) >> 10)
81		203
		204	static SV *on_next_submit;
		205
82	static unsigned int max_poll_time = 0;	206	static unsigned int max_poll_time = 0;
83	static unsigned int max_poll_reqs = 0;	207	static unsigned int max_poll_reqs = 0;
84		208
85	/* calculcate time difference in ~1/AIO_TICKS of a second */	209	/* calculcate time difference in ~1/AIO_TICKS of a second */
86	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	210	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
91		215
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	216	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		217
94	static unsigned int started, idle, wanted;	218	static unsigned int started, idle, wanted;
95		219
96	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
97	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
98	#else
99	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
100	#endif
101
102	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
103	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104
105	/* worker threads management */	220	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	221	static mutex_t wrklock = X_MUTEX_INIT;
107		222
108	typedef struct worker {	223	typedef struct worker {
109	/* locked by wrklock */	224	/* locked by wrklock */
110	struct worker *prev, *next;	225	struct worker *prev, *next;
111		226
112	pthread_t tid;	227	thread_t tid;
113		228
114	/* locked by reslock, reqlock or wrklock */	229	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	230	bdb_req req; /* currently processed request */
116	void *dbuf;	231	void *dbuf;
117	DIR *dirp;	232	DIR *dirp;
118	} worker;	233	} worker;
119		234
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	235	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	247	}
133		248
134	static volatile unsigned int nreqs, nready, npending;	249	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	250	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	251	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	252	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		253
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	254	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	255	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	256	static cond_t reqwait = X_COND_INIT;
142		257
143	#if WORDACCESS_UNSAFE	258	#if WORDACCESS_UNSAFE
144		259
145	static unsigned int get_nready ()	260	static unsigned int get_nready (void)
146	{	261	{
147	unsigned int retval;	262	unsigned int retval;
148		263
149	LOCK (reqlock);	264	X_LOCK (reqlock);
150	retval = nready;	265	retval = nready;
151	UNLOCK (reqlock);	266	X_UNLOCK (reqlock);
152		267
153	return retval;	268	return retval;
154	}	269	}
155		270
156	static unsigned int get_npending ()	271	static unsigned int get_npending (void)
157	{	272	{
158	unsigned int retval;	273	unsigned int retval;
159		274
160	LOCK (reslock);	275	X_LOCK (reslock);
161	retval = npending;	276	retval = npending;
162	UNLOCK (reslock);	277	X_UNLOCK (reslock);
163		278
164	return retval;	279	return retval;
165	}	280	}
166		281
167	static unsigned int get_nthreads ()	282	static unsigned int get_nthreads (void)
168	{	283	{
169	unsigned int retval;	284	unsigned int retval;
170		285
171	LOCK (wrklock);	286	X_LOCK (wrklock);
172	retval = started;	287	retval = started;
173	UNLOCK (wrklock);	288	X_UNLOCK (wrklock);
174		289
175	return retval;	290	return retval;
176	}	291	}
177		292
178	#else	293	#else
…		…
187	* a somewhat faster data structure might be nice, but	302	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	303	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	304	* per shift, the most expensive operation.
190	*/	305	*/
191	typedef struct {	306	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	307	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	308	int size;
194	} reqq;	309	} reqq;
195		310
196	static reqq req_queue;	311	static reqq req_queue;
197	static reqq res_queue;	312	static reqq res_queue;
198		313
199	int reqq_push (reqq *q, aio_req req)	314	int reqq_push (reqq *q, bdb_req req)
200	{	315	{
201	int pri = req->pri;	316	int pri = req->pri;
202	req->next = 0;	317	req->next = 0;
203		318
204	if (q->qe[pri])	319	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	325	q->qe[pri] = q->qs[pri] = req;
211		326
212	return q->size++;	327	return q->size++;
213	}	328	}
214		329
215	aio_req reqq_shift (reqq *q)	330	bdb_req reqq_shift (reqq *q)
216	{	331	{
217	int pri;	332	int pri;
218		333
219	if (!q->size)	334	if (!q->size)
220	return 0;	335	return 0;
221		336
222	--q->size;	337	--q->size;
223		338
224	for (pri = NUM_PRI; pri--; )	339	for (pri = NUM_PRI; pri--; )
225	{	340	{
226	aio_req req = q->qs[pri];	341	bdb_req req = q->qs[pri];
227		342
228	if (req)	343	if (req)
229	{	344	{
230	if (!(q->qs[pri] = req->next))	345	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	346	q->qe[pri] = 0;
…		…
235	}	350	}
236		351
237	abort ();	352	abort ();
238	}	353	}
239		354
240	static int poll_cb ();	355	static int poll_cb (void);
241	static void req_free (aio_req req);	356	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);
243		357
244	static int req_invoke (aio_req req)	358	static int req_invoke (bdb_req req)
245	{	359	{
246	dSP;	360	switch (req->type)
247
248	if (SvOK (req->callback))
249	{	361	{
		362	case REQ_DB_CLOSE:
		363	SvREFCNT_dec (req->sv1);
		364	break;
		365
		366	case REQ_DB_GET:
		367	case REQ_DB_PGET:
		368	case REQ_C_GET:
		369	case REQ_C_PGET:
		370	case REQ_DB_PUT:
		371	case REQ_C_PUT:
		372	dbt_to_sv (req->sv1, &req->dbt1);
		373	dbt_to_sv (req->sv2, &req->dbt2);
		374	dbt_to_sv (req->sv3, &req->dbt3);
		375	break;
		376
		377	case REQ_DB_KEY_RANGE:
		378	{
		379	AV *av = newAV ();
		380
		381	av_push (av, newSVnv (req->key_range.less));
		382	av_push (av, newSVnv (req->key_range.equal));
		383	av_push (av, newSVnv (req->key_range.greater));
		384
		385	av = (AV *)newRV_noinc ((SV *)av);
		386
		387	SvREADONLY_off (req->sv1);
		388	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		389	SvREFCNT_dec (av);
		390	SvREFCNT_dec (req->sv1);
		391	}
		392	break;
		393
		394	#if DB_VERSION_MINOR >= 3
		395	case REQ_SEQ_GET:
		396	SvREADONLY_off (req->sv1);
		397
		398	if (sizeof (IV) > 4)
		399	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		400	else
		401	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		402
		403	SvREFCNT_dec (req->sv1);
		404	break;
		405	#endif
		406
		407	case REQ_ENV_LOG_ARCHIVE:
		408	{
		409	AV *av = newAV ();
		410	char **listp = (char **)req->buf1;
		411
		412	if (listp)
		413	while (*listp)
		414	av_push (av, newSVpv (*listp, 0)), ++listp;
		415
		416	av = (AV *)newRV_noinc ((SV *)av);
		417
		418	SvREADONLY_off (req->sv1);
		419	sv_setsv_mg (req->sv1, (SV *)av);
		420	SvREFCNT_dec (av);
		421	SvREFCNT_dec (req->sv1);
		422	}
		423	break;
		424	}
		425
		426	errno = req->result;
		427
		428	if (req->callback)
		429	{
		430	dSP;
		431
250	ENTER;	432	ENTER;
251	SAVETMPS;	433	SAVETMPS;
252	PUSHMARK (SP);	434	PUSHMARK (SP);
253	EXTEND (SP, 1);
254
255	switch (req->type)
256	{
257	}
258		435
259	PUTBACK;	436	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	437	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	438	SPAGAIN;
262		439
263	FREETMPS;	440	FREETMPS;
264	LEAVE;	441	LEAVE;
		442
		443	return !SvTRUE (ERRSV);
265	}	444	}
266		445
267	return !SvTRUE (ERRSV);	446	return 1;
268	}	447	}
269		448
270	static void req_free (aio_req req)	449	static void req_free (bdb_req req)
271	{	450	{
		451	SvREFCNT_dec (req->callback);
		452
		453	SvREFCNT_dec (req->rsv1);
		454	SvREFCNT_dec (req->rsv2);
		455
272	free (req->buf1);	456	free (req->buf1);
273	free (req->buf2);	457	free (req->buf2);
		458	free (req->buf3);
		459
274	Safefree (req);	460	Safefree (req);
275	}	461	}
276		462
277	static void *aio_proc(void *arg);	463	static void
		464	create_respipe (void)
		465	{
		466	#ifdef _WIN32
		467	int arg; /* argg */
		468	#endif
		469	int old_readfd = respipe [0];
		470
		471	if (respipe [1] >= 0)
		472	respipe_close (S_TO_SOCKET (respipe [1]));
		473
		474	if (s_pipe (respipe))
		475	croak ("unable to initialize result pipe");
		476
		477	if (old_readfd >= 0)
		478	{
		479	if (dup2 (S_TO_SOCKET (respipe [0]), S_TO_SOCKET (old_readfd)) < 0)
		480	croak ("unable to initialize result pipe(2)");
		481
		482	respipe_close (respipe [0]);
		483	respipe [0] = old_readfd;
		484	}
		485
		486	#ifdef _WIN32
		487	arg = 1;
		488	if (ioctlsocket (S_TO_SOCKET (respipe [0]), FIONBIO, &arg)
		489	|| ioctlsocket (S_TO_SOCKET (respipe [1]), FIONBIO, &arg))
		490	#else
		491	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		492	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		493	#endif
		494	croak ("unable to initialize result pipe(3)");
		495
		496	respipe_osf [0] = S_TO_SOCKET (respipe [0]);
		497	respipe_osf [1] = S_TO_SOCKET (respipe [1]);
		498	}
		499
		500	static void bdb_request (bdb_req req);
		501	X_THREAD_PROC (bdb_proc);
278		502
279	static void start_thread (void)	503	static void start_thread (void)
280	{	504	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	505	worker *wrk = calloc (1, sizeof (worker));
285		506
286	if (!wrk)	507	if (!wrk)
287	croak ("unable to allocate worker thread data");	508	croak ("unable to allocate worker thread data");
288		509
289	pthread_attr_init (&attr);
290	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
291	#ifdef PTHREAD_SCOPE_PROCESS
292	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
293	#endif
294
295	sigfillset (&fullsigset);
296
297	LOCK (wrklock);	510	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	511	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	512	{
302	wrk->prev = &wrk_first;	513	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	514	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	515	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	516	wrk_first.next = wrk;
306	++started;	517	++started;
307	}	518	}
308	else	519	else
309	free (wrk);	520	free (wrk);
310		521
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	522	X_UNLOCK (wrklock);
313	}	523	}
314		524
315	static void maybe_start_thread ()	525	static void maybe_start_thread (void)
316	{	526	{
317	if (get_nthreads () >= wanted)	527	if (get_nthreads () >= wanted)
318	return;	528	return;
319		529
320	/* todo: maybe use idle here, but might be less exact */	530	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	532	return;
323		533
324	start_thread ();	534	start_thread ();
325	}	535	}
326		536
327	static void req_send (aio_req req)	537	static void req_send (bdb_req req)
328	{	538	{
		539	SV *wait_callback = 0;
		540
		541	if (on_next_submit)
		542	{
		543	dSP;
		544	SV *cb = sv_2mortal (on_next_submit);
		545
		546	on_next_submit = 0;
		547
		548	PUSHMARK (SP);
		549	PUTBACK;
		550	call_sv (cb, G_DISCARD | G_EVAL);
		551	SPAGAIN;
		552	}
		553
		554	// synthesize callback if none given
		555	if (!req->callback)
		556	{
		557	if (SvOK (prepare_cb))
		558	{
		559	int count;
		560
		561	dSP;
		562	PUSHMARK (SP);
		563	PUTBACK;
		564	count = call_sv (prepare_cb, G_ARRAY);
		565	SPAGAIN;
		566
		567	if (count != 2)
		568	croak ("sync prepare callback must return exactly two values\n");
		569
		570	wait_callback = POPs;
		571	req->callback = SvREFCNT_inc (POPs);
		572	}
		573	else
		574	{
		575	// execute request synchronously
		576	bdb_request (req);
		577	req_invoke (req);
		578	req_free (req);
		579	return;
		580	}
		581	}
		582
329	++nreqs;	583	++nreqs;
330		584
331	LOCK (reqlock);	585	X_LOCK (reqlock);
332	++nready;	586	++nready;
333	reqq_push (&req_queue, req);	587	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	588	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	589	X_UNLOCK (reqlock);
336		590
337	maybe_start_thread ();	591	maybe_start_thread ();
		592
		593	if (wait_callback)
		594	{
		595	dSP;
		596	PUSHMARK (SP);
		597	PUTBACK;
		598	call_sv (wait_callback, G_DISCARD);
		599	}
338	}	600	}
339		601
340	static void end_thread (void)	602	static void end_thread (void)
341	{	603	{
342	aio_req req;	604	bdb_req req = calloc (1, sizeof (bdb_cb));
343
344	Newz (0, req, 1, aio_cb);
345		605
346	req->type = REQ_QUIT;	606	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	607	req->pri = PRI_MAX + PRI_BIAS;
348		608
349	LOCK (reqlock);	609	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	610	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	611	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	612	X_UNLOCK (reqlock);
353		613
354	LOCK (wrklock);	614	X_LOCK (wrklock);
355	--started;	615	--started;
356	UNLOCK (wrklock);	616	X_UNLOCK (wrklock);
357	}	617	}
358		618
359	static void set_max_idle (int nthreads)	619	static void set_max_idle (int nthreads)
360	{	620	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	621	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	622	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	623	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	624	}
365		625
366	static void min_parallel (int nthreads)	626	static void min_parallel (int nthreads)
367	{	627	{
368	if (wanted < nthreads)	628	if (wanted < nthreads)
…		…
376		636
377	while (started > wanted)	637	while (started > wanted)
378	end_thread ();	638	end_thread ();
379	}	639	}
380		640
381	static void poll_wait ()	641	static void poll_wait (void)
382	{	642	{
383	fd_set rfd;	643	fd_set rfd;
384		644
385	while (nreqs)	645	while (nreqs)
386	{	646	{
387	int size;	647	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	648	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	649	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	650	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		651
392	if (size)	652	if (size)
393	return;	653	return;
394		654
395	maybe_start_thread ();	655	maybe_start_thread ();
396		656
397	FD_ZERO(&rfd);	657	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	658	FD_SET (respipe [0], &rfd);
399		659
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	660	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	661	}
402	}	662	}
403		663
404	static int poll_cb ()	664	static int poll_cb (void)
405	{	665	{
406	dSP;	666	dSP;
407	int count = 0;	667	int count = 0;
408	int maxreqs = max_poll_reqs;	668	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	669	int do_croak = 0;
410	struct timeval tv_start, tv_now;	670	struct timeval tv_start, tv_now;
411	aio_req req;	671	bdb_req req;
412		672
413	if (max_poll_time)	673	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	674	gettimeofday (&tv_start, 0);
415		675
416	for (;;)	676	for (;;)
417	{	677	{
418	for (;;)	678	for (;;)
419	{	679	{
420	maybe_start_thread ();	680	maybe_start_thread ();
421		681
422	LOCK (reslock);	682	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	683	req = reqq_shift (&res_queue);
424		684
425	if (req)	685	if (req)
426	{	686	{
427	--npending;	687	--npending;
428		688
429	if (!res_queue.size)	689	if (!res_queue.size)
430	{	690	{
431	/* read any signals sent by the worker threads */	691	/* read any signals sent by the worker threads */
432	char buf [4];	692	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	693	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	694	;
435	}	695	}
436	}	696	}
437		697
438	UNLOCK (reslock);	698	X_UNLOCK (reslock);
439		699
440	if (!req)	700	if (!req)
441	break;	701	break;
442		702
443	--nreqs;	703	--nreqs;
…		…
473	}	733	}
474		734
475	return count;	735	return count;
476	}	736	}
477		737
478	static void create_pipe ()
479	{
480	if (pipe (respipe))
481	croak ("unable to initialize result pipe");
482
483	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
484	croak ("cannot set result pipe to nonblocking mode");
485
486	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
487	croak ("cannot set result pipe to nonblocking mode");
488	}
489
490	/*****************************************************************************/	738	/*****************************************************************************/
491		739
492	static void *aio_proc (void *thr_arg)	740	static void
		741	bdb_request (bdb_req req)
493	{	742	{
		743	switch (req->type)
		744	{
		745	case REQ_ENV_OPEN:
		746	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		747	break;
		748
		749	case REQ_ENV_CLOSE:
		750	req->result = req->env->close (req->env, req->uint1);
		751	break;
		752
		753	case REQ_ENV_TXN_CHECKPOINT:
		754	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		755	break;
		756
		757	case REQ_ENV_LOCK_DETECT:
		758	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		759	break;
		760
		761	case REQ_ENV_MEMP_SYNC:
		762	req->result = req->env->memp_sync (req->env, 0);
		763	break;
		764
		765	case REQ_ENV_MEMP_TRICKLE:
		766	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		767	break;
		768
		769	case REQ_ENV_DBREMOVE:
		770	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		771	break;
		772
		773	case REQ_ENV_DBRENAME:
		774	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		775	break;
		776
		777	case REQ_DB_OPEN:
		778	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		779	break;
		780
		781	case REQ_DB_CLOSE:
		782	req->result = req->db->close (req->db, req->uint1);
		783	break;
		784
		785	#if DB_VERSION_MINOR >= 4
		786	case REQ_DB_COMPACT:
		787	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);
		788	break;
		789	#endif
		790
		791	case REQ_DB_SYNC:
		792	req->result = req->db->sync (req->db, req->uint1);
		793	break;
		794
		795	case REQ_DB_VERIFY:
		796	req->result = req->db->verify (req->db, req->buf1, req->buf2, 0, req->uint1);
		797	break;
		798
		799	case REQ_DB_UPGRADE:
		800	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		801	break;
		802
		803	case REQ_DB_PUT:
		804	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		805	break;
		806
		807	#if DB_VERSION_MINOR >= 6
		808	case REQ_DB_EXISTS:
		809	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		810	break;
		811	#endif
		812	case REQ_DB_GET:
		813	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		814	break;
		815
		816	case REQ_DB_PGET:
		817	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		818	break;
		819
		820	case REQ_DB_DEL:
		821	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		822	break;
		823
		824	case REQ_DB_KEY_RANGE:
		825	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		826	break;
		827
		828	case REQ_TXN_COMMIT:
		829	req->result = req->txn->commit (req->txn, req->uint1);
		830	break;
		831
		832	case REQ_TXN_ABORT:
		833	req->result = req->txn->abort (req->txn);
		834	break;
		835
		836	case REQ_TXN_FINISH:
		837	if (req->txn->flags & TXN_DEADLOCK)
		838	{
		839	req->result = req->txn->abort (req->txn);
		840	if (!req->result)
		841	req->result = DB_LOCK_DEADLOCK;
		842	}
		843	else
		844	req->result = req->txn->commit (req->txn, req->uint1);
		845	break;
		846
		847	case REQ_C_CLOSE:
		848	req->result = req->dbc->c_close (req->dbc);
		849	break;
		850
		851	case REQ_C_COUNT:
		852	{
		853	db_recno_t recno;
		854	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		855	req->uv1 = recno;
		856	}
		857	break;
		858
		859	case REQ_C_PUT:
		860	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		861	break;
		862
		863	case REQ_C_GET:
		864	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		865	break;
		866
		867	case REQ_C_PGET:
		868	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		869	break;
		870
		871	case REQ_C_DEL:
		872	req->result = req->dbc->c_del (req->dbc, req->uint1);
		873	break;
		874
		875	#if DB_VERSION_MINOR >= 3
		876	case REQ_SEQ_OPEN:
		877	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		878	break;
		879
		880	case REQ_SEQ_CLOSE:
		881	req->result = req->seq->close (req->seq, req->uint1);
		882	break;
		883
		884	case REQ_SEQ_GET:
		885	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		886	break;
		887
		888	case REQ_SEQ_REMOVE:
		889	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		890	break;
		891	#endif
		892
		893	case REQ_ENV_LOG_ARCHIVE:
		894	{
		895	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		896	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		897	req->buf1 = (char *)listp;
		898	}
		899	break;
		900
		901	default:
		902	req->result = ENOSYS;
		903	break;
		904	}
		905
		906	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		907	req->txn->flags |= TXN_DEADLOCK;
		908	}
		909
		910	X_THREAD_PROC (bdb_proc)
		911	{
494	aio_req req;	912	bdb_req req;
495	struct timespec ts;	913	struct timespec ts;
496	worker *self = (worker *)thr_arg;	914	worker *self = (worker *)thr_arg;
497		915
498	/* try to distribute timeouts somewhat evenly */	916	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	917	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		918
502	for (;;)	919	for (;;)
503	{	920	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	921	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		922
506	LOCK (reqlock);	923	X_LOCK (reqlock);
507		924
508	for (;;)	925	for (;;)
509	{	926	{
510	self->req = req = reqq_shift (&req_queue);	927	self->req = req = reqq_shift (&req_queue);
511		928
512	if (req)	929	if (req)
513	break;	930	break;
514		931
515	++idle;	932	++idle;
516		933
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	934	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	935	== ETIMEDOUT)
519	{	936	{
520	if (idle > max_idle)	937	if (idle > max_idle)
521	{	938	{
522	--idle;	939	--idle;
523	UNLOCK (reqlock);	940	X_UNLOCK (reqlock);
524	LOCK (wrklock);	941	X_LOCK (wrklock);
525	--started;	942	--started;
526	UNLOCK (wrklock);	943	X_UNLOCK (wrklock);
527	goto quit;	944	goto quit;
528	}	945	}
529		946
530	/* we are allowed to idle, so do so without any timeout */	947	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	948	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	949	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	950	}
534		951
535	--idle;	952	--idle;
536	}	953	}
537		954
538	--nready;	955	--nready;
539		956
540	UNLOCK (reqlock);	957	X_UNLOCK (reqlock);
541
542	errno = 0; /* strictly unnecessary */
543		958
544	switch (req->type)	959	if (req->type == REQ_QUIT)
545	{	960	{
546	case REQ_QUIT:	961	X_LOCK (reslock);
		962	free (req);
		963	self->req = 0;
		964	X_UNLOCK (reslock);
		965
547	goto quit;	966	goto quit;
548
549	default:
550	//req->result = ENOSYS;
551	break;
552	}	967	}
553		968
554	//req->errorno = errno;	969	bdb_request (req);
555		970
556	LOCK (reslock);	971	X_LOCK (reslock);
557		972
558	++npending;	973	++npending;
559		974
560	if (!reqq_push (&res_queue, req))	975	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	976	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	977	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		978
564	self->req = 0;	979	self->req = 0;
565	worker_clear (self);	980	worker_clear (self);
566		981
567	UNLOCK (reslock);	982	X_UNLOCK (reslock);
568	}	983	}
569		984
570	quit:	985	quit:
571	LOCK (wrklock);	986	X_LOCK (wrklock);
572	worker_free (self);	987	worker_free (self);
573	UNLOCK (wrklock);	988	X_UNLOCK (wrklock);
574		989
575	return 0;	990	return 0;
576	}	991	}
577		992
578	/*****************************************************************************/	993	/*****************************************************************************/
579		994
580	static void atfork_prepare (void)	995	static void atfork_prepare (void)
581	{	996	{
582	LOCK (wrklock);	997	X_LOCK (wrklock);
583	LOCK (reqlock);	998	X_LOCK (reqlock);
584	LOCK (reslock);	999	X_LOCK (reslock);
585	}	1000	}
586		1001
587	static void atfork_parent (void)	1002	static void atfork_parent (void)
588	{	1003	{
589	UNLOCK (reslock);	1004	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	1005	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	1006	X_UNLOCK (wrklock);
592	}	1007	}
593		1008
594	static void atfork_child (void)	1009	static void atfork_child (void)
595	{	1010	{
596	aio_req prv;	1011	bdb_req prv;
597		1012
598	while (prv = reqq_shift (&req_queue))	1013	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	1014	req_free (prv);
600		1015
601	while (prv = reqq_shift (&res_queue))	1016	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	1031	idle = 0;
617	nreqs = 0;	1032	nreqs = 0;
618	nready = 0;	1033	nready = 0;
619	npending = 0;	1034	npending = 0;
620		1035
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	1036	create_respipe ();
624		1037
625	atfork_parent ();	1038	atfork_parent ();
626	}	1039	}
627		1040
628	#define dREQ(reqtype) \	1041	#define dREQ(reqtype,rsvcnt) \
629	aio_req req; \	1042	bdb_req req; \
630	int req_pri = next_pri; \	1043	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	1044	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	1045	\
633	if (SvOK (callback) && !SvROK (callback)) \	1046	if (callback && SvOK (callback)) \
634	croak ("callback must be undef or of reference type"); \	1047	croak ("callback has illegal type or extra arguments"); \
635	\	1048	\
636	Newz (0, req, 1, aio_cb); \	1049	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	1050	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	1051	croak ("out of memory during bdb_req allocation"); \
639	\	1052	\
640	req->callback = newSVsv (callback); \	1053	req->callback = SvREFCNT_inc (cb); \
641	req->type = (reqtype); \	1054	req->type = (reqtype); \
642	req->pri = req_pri	1055	req->pri = req_pri; \
		1056	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1057	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1058	(void)0;
643		1059
644	#define REQ_SEND \	1060	#define REQ_SEND \
645	req_send (req)	1061	req_send (req)
646		1062
647	#define SvPTR(var, arg, type, class) \	1063	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	1064	if (!SvOK (arg)) \
		1065	{ \
		1066	if (nullok != 1) \
		1067	croak (# var " must be a " # class " object, not undef"); \
		1068	\
649	(var) = 0; \	1069	(var) = 0; \
		1070	} \
650	else if (sv_derived_from ((arg), # class)) \	1071	else if (sv_derived_from ((arg), # class)) \
651	{ \	1072	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	1073	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	1074	(var) = INT2PTR (type, tmp); \
		1075	if (!var && nullok != 2) \
		1076	croak (# var " is not a valid " # class " object anymore"); \
654	} \	1077	} \
655	else \	1078	else \
656	Perl_croak (# var " is not of type " # type)	1079	croak (# var " is not of type " # class);
657		1080
		1081	#define ARG_MUTABLE(name) \
		1082	if (SvREADONLY (name)) \
		1083	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1084
		1085	static void
		1086	ptr_nuke (SV *sv)
		1087	{
		1088	assert (SvROK (sv));
		1089	sv_setiv (SvRV (sv), 0);
		1090	}
		1091
		1092	static int
		1093	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1094	{
		1095	if (*mg->mg_ptr == '!') // should always be the case
		1096	if (-30999 <= errno && errno <= -30800)
		1097	{
		1098	sv_setnv (sv, (NV)errno);
		1099	sv_setpv (sv, db_strerror (errno));
		1100	SvNOK_on (sv); /* what a wonderful hack! */
		1101	// ^^^ copied from perl sources
		1102	return 0;
		1103	}
		1104
		1105	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1106	}
		1107
		1108	static MGVTBL vtbl_errno;
		1109
		1110	// this wonderful hack :( patches perl's $! variable to support our errno values
		1111	static void
		1112	patch_errno (void)
		1113	{
		1114	SV *sv;
		1115	MAGIC *mg;
		1116
		1117	if (!(sv = get_sv ("!", 1)))
		1118	return;
		1119
		1120	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1121	return;
		1122
		1123	if (mg->mg_virtual != &PL_vtbl_sv)
		1124	return;
		1125
		1126	vtbl_errno = PL_vtbl_sv;
		1127	vtbl_errno.svt_get = errno_get;
		1128	mg->mg_virtual = &vtbl_errno;
		1129	}
		1130
		1131	#if __GNUC__ >= 4
		1132	# define noinline __attribute__ ((noinline))
		1133	#else
		1134	# define noinline
		1135	#endif
		1136
		1137	static noinline SV *
		1138	pop_callback (I32 *ritems, SV *sv)
		1139	{
		1140	if (SvROK (sv))
		1141	{
		1142	HV *st;
		1143	GV *gvp;
		1144	CV *cv;
		1145	const char *name;
		1146
		1147	/* forgive me */
		1148	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1149	&& (st = SvSTASH (SvRV (sv)))
		1150	&& (name = HvNAME_get (st))
		1151	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1152	return 0;
		1153
		1154	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1155	{
		1156	--*ritems;
		1157	return (SV *)cv;
		1158	}
		1159	}
		1160
		1161	return 0;
		1162	}
		1163
		1164	/*****************************************************************************/
		1165
		1166	#if 0
		1167	static int
		1168	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1169	{
		1170	ssize_t size1 = dbt1->size;
		1171	ssize_t size2 = dbt2->size;
		1172	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1173	size1 <= size2 ? size1 : size2);
		1174
		1175	if (res)
		1176	return res;
		1177	else if (size1 - size2)
		1178	return size1 - size2;
		1179	else
		1180	return 0;
		1181	}
		1182
		1183	static size_t
		1184	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1185	{
		1186	ssize_t size1 = dbt1->size;
		1187	ssize_t size2 = dbt2->size;
		1188	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1189	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1190	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1191
		1192	while (p1 < pe)
		1193	if (*p1++ != *p2++)
		1194	return p1 - (u_int8_t *)dbt1->data - 1;
		1195
		1196	if (size1 < size2) return size1 + 1;
		1197	if (size1 > size2) return size2 + 1;
		1198
		1199	return size1;
		1200	}
		1201	#endif
		1202
		1203	/*****************************************************************************/
		1204
		1205	/* stupid windows defines CALLBACK as well */
		1206	#undef CALLBACK
		1207	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1208
658	MODULE = BDB PACKAGE = BDB	1209	MODULE = BDB PACKAGE = BDB
659		1210
660	PROTOTYPES: ENABLE	1211	PROTOTYPES: ENABLE
661		1212
662	BOOT:	1213	BOOT:
…		…
677	const_iv (INIT_TXN)	1228	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1229	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1230	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1231	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1232	const_iv (CREATE)
		1233	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1234	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1235	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1236	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1237	const_iv (PRIVATE)
686	const_iv (REGISTER)
687	const_iv (SYSTEM_MEM)	1238	const_iv (SYSTEM_MEM)
688	const_iv (AUTO_COMMIT)	1239	const_iv (AUTO_COMMIT)
689	const_iv (CDB_ALLDB)	1240	const_iv (CDB_ALLDB)
690	const_iv (DIRECT_DB)	1241	const_iv (DIRECT_DB)
691	const_iv (DIRECT_LOG)
692	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1242	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1243	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1244	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1245	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1246	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1247	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1248	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1249	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1250	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1251	const_iv (TXN_WRITE_NOSYNC)
		1252	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1253	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1254	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1255	const_iv (XA_CREATE)
710	const_iv (BTREE)	1256	const_iv (BTREE)
711	const_iv (HASH)	1257	const_iv (HASH)
712	const_iv (QUEUE)	1258	const_iv (QUEUE)
713	const_iv (RECNO)	1259	const_iv (RECNO)
714	const_iv (UNKNOWN)	1260	const_iv (UNKNOWN)
715	const_iv (EXCL)	1261	const_iv (EXCL)
716	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1262	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1263	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1264	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1265	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1266	const_iv (DUP)
723	const_iv (DUPSORT)	1267	const_iv (DUPSORT)
724	const_iv (RECNUM)	1268	//const_iv (RECNUM)
725	const_iv (RENUMBER)	1269	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1270	const_iv (REVSPLITOFF)
727	const_iv (INORDER)
728	const_iv (CONSUME)	1271	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1272	const_iv (CONSUME_WAIT)
		1273	const_iv (GET_BOTH)
		1274	const_iv (GET_BOTH_RANGE)
		1275	//const_iv (SET_RECNO)
		1276	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1277	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1278	const_iv (JOIN_ITEM)
		1279	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1280	const_iv (RMW)
733		1281
734	const_iv (NOTFOUND)	1282	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1283	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1284	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1285	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1286	const_iv (RUNRECOVERY)
		1287	const_iv (OLD_VERSION)
		1288	const_iv (REP_HANDLE_DEAD)
		1289	const_iv (SECONDARY_BAD)
		1290
		1291	const_iv (APPEND)
		1292	const_iv (NODUPDATA)
		1293	const_iv (NOOVERWRITE)
		1294
		1295	const_iv (TXN_NOWAIT)
		1296	const_iv (TXN_SYNC)
		1297
		1298	const_iv (SET_LOCK_TIMEOUT)
		1299	const_iv (SET_TXN_TIMEOUT)
		1300
		1301	const_iv (FIRST)
		1302	const_iv (NEXT)
		1303	const_iv (NEXT_DUP)
		1304	const_iv (NEXT_NODUP)
		1305	const_iv (PREV)
		1306	const_iv (PREV_NODUP)
		1307	const_iv (SET)
		1308	const_iv (SET_RANGE)
		1309	const_iv (LAST)
		1310	const_iv (BEFORE)
		1311	const_iv (AFTER)
		1312	const_iv (CURRENT)
		1313	const_iv (KEYFIRST)
		1314	const_iv (KEYLAST)
		1315	const_iv (NODUPDATA)
		1316
		1317	const_iv (FORCE)
		1318
		1319	const_iv (LOCK_DEFAULT)
		1320	const_iv (LOCK_EXPIRE)
		1321	const_iv (LOCK_MAXLOCKS)
		1322	const_iv (LOCK_MINLOCKS)
		1323	const_iv (LOCK_MINWRITE)
		1324	const_iv (LOCK_OLDEST)
		1325	const_iv (LOCK_RANDOM)
		1326	const_iv (LOCK_YOUNGEST)
		1327
		1328	const_iv (DONOTINDEX)
		1329	const_iv (KEYEMPTY )
		1330	const_iv (KEYEXIST )
		1331	const_iv (LOCK_DEADLOCK)
		1332	const_iv (LOCK_NOTGRANTED)
		1333	const_iv (NOSERVER)
		1334	const_iv (NOSERVER_HOME)
		1335	const_iv (NOSERVER_ID)
		1336	const_iv (NOTFOUND)
		1337	const_iv (PAGE_NOTFOUND)
		1338	const_iv (REP_DUPMASTER)
		1339	const_iv (REP_HANDLE_DEAD)
		1340	const_iv (REP_HOLDELECTION)
		1341	const_iv (REP_ISPERM)
		1342	const_iv (REP_NEWMASTER)
		1343	const_iv (REP_NEWSITE)
		1344	const_iv (REP_NOTPERM)
		1345	const_iv (REP_UNAVAIL)
		1346	const_iv (RUNRECOVERY)
		1347	const_iv (SECONDARY_BAD)
		1348	const_iv (VERIFY_BAD)
		1349
		1350	const_iv (SALVAGE)
		1351	const_iv (AGGRESSIVE)
		1352	const_iv (PRINTABLE)
		1353	const_iv (NOORDERCHK)
		1354	const_iv (ORDERCHKONLY)
		1355
		1356	const_iv (ARCH_ABS)
		1357	const_iv (ARCH_DATA)
		1358	const_iv (ARCH_LOG)
		1359	const_iv (ARCH_REMOVE)
		1360
		1361	const_iv (VERB_DEADLOCK)
		1362	const_iv (VERB_RECOVERY)
		1363	const_iv (VERB_REPLICATION)
		1364	const_iv (VERB_WAITSFOR)
		1365
		1366	const_iv (VERSION_MAJOR)
		1367	const_iv (VERSION_MINOR)
		1368	const_iv (VERSION_PATCH)
		1369	#if DB_VERSION_MINOR >= 3
		1370	const_iv (INORDER)
		1371	const_iv (LOCK_MAXWRITE)
		1372	const_iv (SEQ_DEC)
		1373	const_iv (SEQ_INC)
		1374	const_iv (SEQ_WRAP)
		1375	const_iv (BUFFER_SMALL)
		1376	const_iv (LOG_BUFFER_FULL)
		1377	const_iv (VERSION_MISMATCH)
		1378	#endif
		1379	#if DB_VERSION_MINOR >= 4
		1380	const_iv (REGISTER)
		1381	const_iv (DSYNC_DB)
		1382	const_iv (READ_COMMITTED)
		1383	const_iv (READ_UNCOMMITTED)
		1384	const_iv (REP_IGNORE)
		1385	const_iv (REP_LOCKOUT)
		1386	const_iv (REP_JOIN_FAILURE)
		1387	const_iv (FREE_SPACE)
		1388	const_iv (FREELIST_ONLY)
		1389	const_iv (VERB_REGISTER)
		1390	#endif
		1391	#if DB_VERSION_MINOR >= 5
		1392	const_iv (MULTIVERSION)
		1393	const_iv (TXN_SNAPSHOT)
		1394	#endif
		1395	#if DB_VERSION_MINOR >= 6
		1396	const_iv (PREV_DUP)
		1397	const_iv (PRIORITY_UNCHANGED)
		1398	const_iv (PRIORITY_VERY_LOW)
		1399	const_iv (PRIORITY_LOW)
		1400	const_iv (PRIORITY_DEFAULT)
		1401	const_iv (PRIORITY_HIGH)
		1402	const_iv (PRIORITY_VERY_HIGH)
		1403	const_iv (IGNORE_LEASE)
		1404	#endif
		1405	#if DB_VERSION_MINOR >= 7
		1406	//const_iv (MULTIPLE_KEY)
		1407	const_iv (LOG_DIRECT)
		1408	const_iv (LOG_DSYNC)
		1409	const_iv (LOG_AUTO_REMOVE)
		1410	const_iv (LOG_IN_MEMORY)
		1411	const_iv (LOG_ZERO)
		1412	#else
		1413	const_iv (DIRECT_LOG)
		1414	const_iv (LOG_AUTOREMOVE)
		1415	# if DB_VERSION_MINOR >= 3
		1416	const_iv (DSYNC_LOG)
		1417	const_iv (LOG_INMEMORY)
		1418	# endif
		1419	#endif
739	};	1420	};
740		1421
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1422	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1423	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1424
744	create_pipe ();	1425	prepare_cb = &PL_sv_undef;
		1426
		1427	{
		1428	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1429	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1430
		1431	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1432	}
		1433
		1434	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1435
		1436	create_respipe ();
		1437
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1438	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1439	patch_errno ();
746	}	1440	}
747		1441
748	void	1442	void
749	max_poll_reqs (int nreqs)	1443	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1444	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1473	max_outstanding = maxreqs;
780	OUTPUT:	1474	OUTPUT:
781	RETVAL	1475	RETVAL
782		1476
783	int	1477	int
784	bdbreq_pri (int pri = 0)	1478	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1479	PROTOTYPE: ;$
786	CODE:	1480	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1481	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1482	if (items > 0)
789	{	1483	{
…		…
793	}	1487	}
794	OUTPUT:	1488	OUTPUT:
795	RETVAL	1489	RETVAL
796		1490
797	void	1491	void
798	bdbreq_nice (int nice = 0)	1492	dbreq_nice (int nice = 0)
799	CODE:	1493	CODE:
800	nice = next_pri - nice;	1494	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1495	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1496	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1497	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1505	poll_wait ();
812	poll_cb ();	1506	poll_cb ();
813	}	1507	}
814		1508
815	int	1509	int
816	poll()	1510	poll ()
817	PROTOTYPE:	1511	PROTOTYPE:
818	CODE:	1512	CODE:
819	poll_wait ();	1513	poll_wait ();
820	RETVAL = poll_cb ();	1514	RETVAL = poll_cb ();
821	OUTPUT:	1515	OUTPUT:
822	RETVAL	1516	RETVAL
823		1517
824	int	1518	int
825	poll_fileno()	1519	poll_fileno ()
826	PROTOTYPE:	1520	PROTOTYPE:
827	CODE:	1521	CODE:
828	RETVAL = respipe [0];	1522	RETVAL = respipe [0];
829	OUTPUT:	1523	OUTPUT:
830	RETVAL	1524	RETVAL
831		1525
832	int	1526	int
833	poll_cb(...)	1527	poll_cb (...)
834	PROTOTYPE:	1528	PROTOTYPE:
835	CODE:	1529	CODE:
836	RETVAL = poll_cb ();	1530	RETVAL = poll_cb ();
837	OUTPUT:	1531	OUTPUT:
838	RETVAL	1532	RETVAL
839		1533
840	void	1534	void
841	poll_wait()	1535	poll_wait ()
842	PROTOTYPE:	1536	PROTOTYPE:
843	CODE:	1537	CODE:
844	poll_wait ();	1538	poll_wait ();
845		1539
846	int	1540	int
847	nreqs()	1541	nreqs ()
848	PROTOTYPE:	1542	PROTOTYPE:
849	CODE:	1543	CODE:
850	RETVAL = nreqs;	1544	RETVAL = nreqs;
851	OUTPUT:	1545	OUTPUT:
852	RETVAL	1546	RETVAL
853		1547
854	int	1548	int
855	nready()	1549	nready ()
856	PROTOTYPE:	1550	PROTOTYPE:
857	CODE:	1551	CODE:
858	RETVAL = get_nready ();	1552	RETVAL = get_nready ();
859	OUTPUT:	1553	OUTPUT:
860	RETVAL	1554	RETVAL
861		1555
862	int	1556	int
863	npending()	1557	npending ()
864	PROTOTYPE:	1558	PROTOTYPE:
865	CODE:	1559	CODE:
866	RETVAL = get_npending ();	1560	RETVAL = get_npending ();
867	OUTPUT:	1561	OUTPUT:
868	RETVAL	1562	RETVAL
869		1563
870	int	1564	int
871	nthreads()	1565	nthreads ()
872	PROTOTYPE:	1566	PROTOTYPE:
873	CODE:	1567	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1568	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1569	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1570	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1571	OUTPUT:
878	RETVAL	1572	RETVAL
879		1573
		1574	SV *
		1575	set_sync_prepare (SV *cb)
		1576	PROTOTYPE: &
		1577	CODE:
		1578	RETVAL = prepare_cb;
		1579	prepare_cb = newSVsv (cb);
		1580	OUTPUT:
		1581	RETVAL
		1582
		1583	char *
		1584	strerror (int errorno = errno)
		1585	PROTOTYPE: ;$
		1586	CODE:
		1587	RETVAL = db_strerror (errorno);
		1588	OUTPUT:
		1589	RETVAL
		1590
		1591	void _on_next_submit (SV *cb)
		1592	CODE:
		1593	SvREFCNT_dec (on_next_submit);
		1594	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1595
880	DB_ENV *	1596	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1597	db_env_create (U32 env_flags = 0)
882	CODE:	1598	CODE:
883	{	1599	{
884	int err = db_env_create (&RETVAL, env_flags);	1600	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1601	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1602	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1603
		1604	if (0)
		1605	{
		1606	RETVAL->set_errcall (RETVAL, debug_errcall);
		1607	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1608	}
		1609	}
		1610	OUTPUT:
		1611	RETVAL
		1612
889	void	1613	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1614	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1615	PREINIT:
		1616	CALLBACK
891	CODE:	1617	CODE:
892	{	1618	{
893	dREQ (REQ_ENV_OPEN);	1619	dREQ (REQ_ENV_OPEN, 1);
894	req->env = env;	1620	req->env = env;
895	req->uint1 = open_flags;	1621	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1622	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1623	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1624	REQ_SEND;
899	}	1625	}
900		1626
901	void	1627	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1628	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1629	PREINIT:
		1630	CALLBACK
903	CODE:	1631	CODE:
904	{	1632	{
905	dREQ (REQ_ENV_CLOSE);	1633	dREQ (REQ_ENV_CLOSE, 0);
		1634	ptr_nuke (ST (0));
906	req->env = env;	1635	req->env = env;
907	req->uint1 = flags;	1636	req->uint1 = flags;
908	REQ_SEND;	1637	REQ_SEND;
909	}	1638	}
910		1639
		1640	void
		1641	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1642	PREINIT:
		1643	CALLBACK
		1644	CODE:
		1645	{
		1646	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1647	req->env = env;
		1648	req->uint1 = kbyte;
		1649	req->int1 = min;
		1650	req->uint2 = flags;
		1651	REQ_SEND;
		1652	}
		1653
		1654	void
		1655	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1656	PREINIT:
		1657	CALLBACK
		1658	CODE:
		1659	{
		1660	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1661	req->env = env;
		1662	req->uint1 = flags;
		1663	req->uint2 = atype;
		1664	/* req->int2 = 0; dummy */
		1665	REQ_SEND;
		1666	}
		1667
		1668	void
		1669	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1670	PREINIT:
		1671	CALLBACK
		1672	CODE:
		1673	{
		1674	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1675	req->env = env;
		1676	REQ_SEND;
		1677	}
		1678
		1679	void
		1680	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1681	PREINIT:
		1682	CALLBACK
		1683	CODE:
		1684	{
		1685	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1686	req->env = env;
		1687	req->int1 = percent;
		1688	REQ_SEND;
		1689	}
		1690
		1691	void
		1692	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1693	PREINIT:
		1694	CALLBACK
		1695	CODE:
		1696	{
		1697	dREQ (REQ_ENV_DBREMOVE, 2);
		1698	req->env = env;
		1699	req->buf1 = strdup_ornull (file);
		1700	req->buf2 = strdup_ornull (database);
		1701	req->uint1 = flags;
		1702	REQ_SEND;
		1703	}
		1704
		1705	void
		1706	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)
		1707	PREINIT:
		1708	CALLBACK
		1709	CODE:
		1710	{
		1711	dREQ (REQ_ENV_DBRENAME, 2);
		1712	req->env = env;
		1713	req->buf1 = strdup_ornull (file);
		1714	req->buf2 = strdup_ornull (database);
		1715	req->buf3 = strdup_ornull (newname);
		1716	req->uint1 = flags;
		1717	REQ_SEND;
		1718	}
		1719
		1720	void
		1721	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1722	PREINIT:
		1723	CALLBACK
		1724	CODE:
		1725	{
		1726	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1727	req->sv1 = SvREFCNT_inc (listp);
		1728	req->env = env;
		1729	req->uint1 = flags;
		1730	REQ_SEND;
		1731	}
		1732
911	DB *	1733	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1734	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1735	CODE:
914	{	1736	{
915	int err = db_create (&RETVAL, env, flags);	1737	errno = db_create (&RETVAL, env, flags);
916	if (err)	1738	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1739	croak ("db_create: %s", db_strerror (errno));
918	}
919		1740
		1741	if (RETVAL)
		1742	RETVAL->app_private = (void *)newSVsv (ST (0));
		1743	}
		1744	OUTPUT:
		1745	RETVAL
		1746
920	void	1747	void
921	bdb_db_open (DB *db, DB_TXN *txnid, const char *file, const char *database, int type, U32 flags, int mode, SV *callback = 0)	1748	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1749	PREINIT:
		1750	CALLBACK
922	CODE:	1751	CODE:
923	{	1752	{
924	dREQ (REQ_DB_OPEN);	1753	dREQ (REQ_DB_OPEN, 2);
925	req->db = db;	1754	req->db = db;
926	req->txn = txnid;	1755	req->txn = txnid;
927	req->buf1 = strdup (file);	1756	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1757	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1758	req->int1 = type;
930	req->uint1 = flags;	1759	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1760	req->int2 = mode;
932	REQ_SEND;	1761	REQ_SEND;
933	}	1762	}
934		1763
935	void	1764	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1765	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1766	PREINIT:
		1767	CALLBACK
937	CODE:	1768	CODE:
938	{	1769	{
939	dREQ (REQ_DB_CLOSE);	1770	dREQ (REQ_DB_CLOSE, 0);
		1771	ptr_nuke (ST (0));
940	req->db = db;	1772	req->db = db;
941	req->uint1 = flags;	1773	req->uint1 = flags;
		1774	req->sv1 = (SV *)db->app_private;
		1775	REQ_SEND;
		1776	}
		1777
		1778	#if DB_VERSION_MINOR >= 4
		1779
		1780	void
		1781	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)
		1782	PREINIT:
		1783	CALLBACK
		1784	CODE:
		1785	{
		1786	dREQ (REQ_DB_COMPACT, 2);
		1787	req->db = db;
		1788	req->txn = txn;
		1789	if (start) sv_to_dbt (&req->dbt1, start);
		1790	if (stop ) sv_to_dbt (&req->dbt2, stop );
		1791	req->uint1 = flags;
		1792	REQ_SEND;
		1793	}
		1794
		1795	#endif
		1796
		1797	void
		1798	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1799	PREINIT:
		1800	CALLBACK
		1801	CODE:
		1802	{
		1803	dREQ (REQ_DB_SYNC, 1);
		1804	req->db = db;
		1805	req->uint1 = flags;
		1806	REQ_SEND;
		1807	}
		1808
		1809	void
		1810	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1811	PREINIT:
		1812	CALLBACK
		1813	CODE:
		1814	{
		1815	dREQ (REQ_DB_VERIFY, 1);
		1816	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
		1817	req->db = db;
		1818	req->buf1 = strdup (file);
		1819	req->buf2 = strdup_ornull (database);
		1820	req->uint1 = flags;
		1821	REQ_SEND;
		1822	}
		1823
		1824	void
		1825	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1826	PREINIT:
		1827	CALLBACK
		1828	CODE:
		1829	{
		1830	dREQ (REQ_DB_UPGRADE, 1);
		1831	req->db = db;
		1832	req->buf1 = strdup (file);
		1833	req->uint1 = flags;
		1834	REQ_SEND;
		1835	}
		1836
		1837	void
		1838	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1839	PREINIT:
		1840	CALLBACK
		1841	CODE:
		1842	{
		1843	dREQ (REQ_DB_KEY_RANGE, 2);
		1844	req->db = db;
		1845	req->txn = txn;
		1846	sv_to_dbt (&req->dbt1, key);
		1847	req->uint1 = flags;
		1848	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1849	REQ_SEND;
		1850	}
		1851
		1852	void
		1853	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1854	PREINIT:
		1855	CALLBACK
		1856	CODE:
		1857	{
		1858	dREQ (REQ_DB_PUT, 2);
		1859	req->db = db;
		1860	req->txn = txn;
		1861	sv_to_dbt (&req->dbt1, key);
		1862	sv_to_dbt (&req->dbt2, data);
		1863	req->uint1 = flags;
		1864	REQ_SEND;
		1865	}
		1866
		1867	#if DB_VERSION_MINOR >= 6
		1868
		1869	void
		1870	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1871	PREINIT:
		1872	CALLBACK
		1873	CODE:
		1874	{
		1875	dREQ (REQ_DB_EXISTS, 2);
		1876	req->db = db;
		1877	req->txn = txn;
		1878	req->uint1 = flags;
		1879	sv_to_dbt (&req->dbt1, key);
		1880	REQ_SEND;
		1881	}
		1882
		1883	#endif
		1884
		1885	void
		1886	db_get (DB *db, DB_TXN_ornull *txn, SV *key, 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_GET, 2);
		1893	req->db = db;
		1894	req->txn = txn;
		1895	req->uint1 = flags;
		1896	sv_to_dbt (&req->dbt1, key);
		1897	req->dbt3.flags = DB_DBT_MALLOC;
		1898	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1899	REQ_SEND;
		1900	}
		1901
		1902	void
		1903	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1904	PREINIT:
		1905	CALLBACK
		1906	CODE:
		1907	{
		1908	//TODO: key is somtimesmutable
		1909	dREQ (REQ_DB_PGET, 2);
		1910	req->db = db;
		1911	req->txn = txn;
		1912	req->uint1 = flags;
		1913
		1914	sv_to_dbt (&req->dbt1, key);
		1915
		1916	req->dbt2.flags = DB_DBT_MALLOC;
		1917	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1918
		1919	req->dbt3.flags = DB_DBT_MALLOC;
		1920	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1921	REQ_SEND;
		1922	}
		1923
		1924	void
		1925	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1926	PREINIT:
		1927	CALLBACK
		1928	CODE:
		1929	{
		1930	dREQ (REQ_DB_DEL, 2);
		1931	req->db = db;
		1932	req->txn = txn;
		1933	req->uint1 = flags;
		1934	sv_to_dbt (&req->dbt1, key);
		1935	REQ_SEND;
		1936	}
		1937
		1938	void
		1939	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1940	PREINIT:
		1941	CALLBACK
		1942	CODE:
		1943	{
		1944	dREQ (REQ_TXN_COMMIT, 0);
		1945	ptr_nuke (ST (0));
		1946	req->txn = txn;
		1947	req->uint1 = flags;
		1948	REQ_SEND;
		1949	}
		1950
		1951	void
		1952	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1953	PREINIT:
		1954	CALLBACK
		1955	CODE:
		1956	{
		1957	dREQ (REQ_TXN_ABORT, 0);
		1958	ptr_nuke (ST (0));
		1959	req->txn = txn;
		1960	REQ_SEND;
		1961	}
		1962
		1963	void
		1964	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1965	PREINIT:
		1966	CALLBACK
		1967	CODE:
		1968	{
		1969	dREQ (REQ_TXN_FINISH, 0);
		1970	ptr_nuke (ST (0));
		1971	req->txn = txn;
		1972	req->uint1 = flags;
		1973	REQ_SEND;
		1974	}
		1975
		1976	void
		1977	db_c_close (DBC *dbc, SV *callback = 0)
		1978	PREINIT:
		1979	CALLBACK
		1980	CODE:
		1981	{
		1982	dREQ (REQ_C_CLOSE, 0);
		1983	ptr_nuke (ST (0));
		1984	req->dbc = dbc;
		1985	REQ_SEND;
		1986	}
		1987
		1988	void
		1989	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1990	PREINIT:
		1991	CALLBACK
		1992	CODE:
		1993	{
		1994	dREQ (REQ_C_COUNT, 1);
		1995	req->dbc = dbc;
		1996	req->sv1 = SvREFCNT_inc (count);
		1997	REQ_SEND;
		1998	}
		1999
		2000	void
		2001	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		2002	PREINIT:
		2003	CALLBACK
		2004	CODE:
		2005	{
		2006	dREQ (REQ_C_PUT, 1);
		2007	req->dbc = dbc;
		2008	sv_to_dbt (&req->dbt1, key);
		2009	sv_to_dbt (&req->dbt2, data);
		2010	req->uint1 = flags;
		2011	REQ_SEND;
		2012	}
		2013
		2014	void
		2015	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2016	PREINIT:
		2017	CALLBACK
		2018	CODE:
		2019	{
		2020	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2021	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2022	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2023	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2024	"key",
		2025	"BDB::db_c_get");
		2026
		2027	{
		2028	dREQ (REQ_C_GET, 1);
		2029	req->dbc = dbc;
		2030	req->uint1 = flags;
		2031	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2032	sv_to_dbt (&req->dbt1, key);
		2033	else
		2034	{
		2035	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2036	sv_to_dbt (&req->dbt1, key);
		2037	else
		2038	req->dbt1.flags = DB_DBT_MALLOC;
		2039
		2040	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2041	}
		2042
		2043	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2044	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2045	sv_to_dbt (&req->dbt3, data);
		2046	else
		2047	req->dbt3.flags = DB_DBT_MALLOC;
		2048
		2049	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
942	REQ_SEND;	2050	REQ_SEND;
		2051	}
943	}	2052	}
		2053
		2054	void
		2055	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2056	PREINIT:
		2057	CALLBACK
		2058	CODE:
		2059	{
		2060	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2061	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2062	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2063	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2064	"key",
		2065	"BDB::db_c_pget");
		2066
		2067	{
		2068	dREQ (REQ_C_PGET, 1);
		2069	req->dbc = dbc;
		2070	req->uint1 = flags;
		2071	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2072	sv_to_dbt (&req->dbt1, key);
		2073	else
		2074	{
		2075	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2076	sv_to_dbt (&req->dbt1, key);
		2077	else
		2078	req->dbt1.flags = DB_DBT_MALLOC;
		2079
		2080	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2081	}
		2082
		2083	req->dbt2.flags = DB_DBT_MALLOC;
		2084	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2085
		2086	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2087	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2088	sv_to_dbt (&req->dbt3, data);
		2089	else
		2090	req->dbt3.flags = DB_DBT_MALLOC;
		2091
		2092	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2093	REQ_SEND;
		2094	}
		2095	}
		2096
		2097	void
		2098	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2099	PREINIT:
		2100	CALLBACK
		2101	CODE:
		2102	{
		2103	dREQ (REQ_C_DEL, 1);
		2104	req->dbc = dbc;
		2105	req->uint1 = flags;
		2106	REQ_SEND;
		2107	}
		2108
		2109
		2110	#if DB_VERSION_MINOR >= 3
		2111
		2112	void
		2113	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2114	PREINIT:
		2115	CALLBACK
		2116	CODE:
		2117	{
		2118	dREQ (REQ_SEQ_OPEN, 2);
		2119	req->seq = seq;
		2120	req->txn = txnid;
		2121	req->uint1 = flags | DB_THREAD;
		2122	sv_to_dbt (&req->dbt1, key);
		2123	REQ_SEND;
		2124	}
		2125
		2126	void
		2127	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2128	PREINIT:
		2129	CALLBACK
		2130	CODE:
		2131	{
		2132	dREQ (REQ_SEQ_CLOSE, 0);
		2133	ptr_nuke (ST (0));
		2134	req->seq = seq;
		2135	req->uint1 = flags;
		2136	REQ_SEND;
		2137	}
		2138
		2139	void
		2140	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2141	PREINIT:
		2142	CALLBACK
		2143	CODE:
		2144	{
		2145	dREQ (REQ_SEQ_GET, 2);
		2146	req->seq = seq;
		2147	req->txn = txnid;
		2148	req->int1 = delta;
		2149	req->uint1 = flags;
		2150	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2151	REQ_SEND;
		2152	}
		2153
		2154	void
		2155	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2156	PREINIT:
		2157	CALLBACK
		2158	CODE:
		2159	{
		2160	dREQ (REQ_SEQ_REMOVE, 2);
		2161	req->seq = seq;
		2162	req->txn = txnid;
		2163	req->uint1 = flags;
		2164	REQ_SEND;
		2165	}
		2166
		2167	#endif
944		2168
945		2169
946	MODULE = BDB PACKAGE = BDB::Env	2170	MODULE = BDB PACKAGE = BDB::Env
947		2171
		2172	void
		2173	DESTROY (DB_ENV_ornuked *env)
		2174	CODE:
		2175	if (env)
		2176	env->close (env, 0);
		2177
		2178	int set_data_dir (DB_ENV *env, const char *dir)
		2179	CODE:
		2180	RETVAL = env->set_data_dir (env, dir);
		2181	OUTPUT:
		2182	RETVAL
		2183
		2184	int set_tmp_dir (DB_ENV *env, const char *dir)
		2185	CODE:
		2186	RETVAL = env->set_tmp_dir (env, dir);
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	int set_lg_dir (DB_ENV *env, const char *dir)
		2191	CODE:
		2192	RETVAL = env->set_lg_dir (env, dir);
		2193	OUTPUT:
		2194	RETVAL
		2195
		2196	int set_shm_key (DB_ENV *env, long shm_key)
		2197	CODE:
		2198	RETVAL = env->set_shm_key (env, shm_key);
		2199	OUTPUT:
		2200	RETVAL
		2201
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2202	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2203	CODE:
		2204	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2205	OUTPUT:
		2206	RETVAL
949		2207
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	2208	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2209	CODE:
		2210	RETVAL = env->set_flags (env, flags, onoff);
		2211	OUTPUT:
		2212	RETVAL
951		2213
		2214	#if DB_VERSION_MINOR >= 7
		2215
		2216	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2217	CODE:
		2218	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2223	CODE:
		2224	RETVAL = env->log_set_config (env, flags, onoff);
		2225	OUTPUT:
		2226	RETVAL
		2227
		2228	#endif
		2229
		2230
		2231	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2232	CODE:
		2233	env->set_errfile (env, errfile);
		2234
		2235	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2236	CODE:
		2237	env->set_msgfile (env, msgfile);
		2238
		2239	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2240	CODE:
		2241	RETVAL = env->set_verbose (env, which, onoff);
		2242	OUTPUT:
		2243	RETVAL
		2244
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	2245	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2246	CODE:
		2247	RETVAL = env->set_encrypt (env, password, flags);
		2248	OUTPUT:
		2249	RETVAL
		2250
		2251	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2252	CODE:
		2253	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2254	OUTPUT:
		2255	RETVAL
		2256
		2257	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2258	CODE:
		2259	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2260	OUTPUT:
		2261	RETVAL
		2262
		2263	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2264	CODE:
		2265	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2266	OUTPUT:
		2267	RETVAL
		2268
		2269	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2270	CODE:
		2271	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2272	OUTPUT:
		2273	RETVAL
		2274
		2275	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2276	CODE:
		2277	RETVAL = env->set_lk_detect (env, detect);
		2278	OUTPUT:
		2279	RETVAL
		2280
		2281	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2282	CODE:
		2283	RETVAL = env->set_lk_max_lockers (env, max);
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	int set_lk_max_locks (DB_ENV *env, U32 max)
		2288	CODE:
		2289	RETVAL = env->set_lk_max_locks (env, max);
		2290	OUTPUT:
		2291	RETVAL
		2292
		2293	int set_lk_max_objects (DB_ENV *env, U32 max)
		2294	CODE:
		2295	RETVAL = env->set_lk_max_objects (env, max);
		2296	OUTPUT:
		2297	RETVAL
		2298
		2299	int set_lg_bsize (DB_ENV *env, U32 max)
		2300	CODE:
		2301	RETVAL = env->set_lg_bsize (env, max);
		2302	OUTPUT:
		2303	RETVAL
		2304
		2305	int set_lg_max (DB_ENV *env, U32 max)
		2306	CODE:
		2307	RETVAL = env->set_lg_max (env, max);
		2308	OUTPUT:
		2309	RETVAL
		2310
		2311	#if DB_VERSION_MINOR >= 4
		2312
		2313	int mutex_set_max (DB_ENV *env, U32 max)
		2314	CODE:
		2315	RETVAL = env->mutex_set_max (env, max);
		2316	OUTPUT:
		2317	RETVAL
		2318
		2319	int mutex_set_increment (DB_ENV *env, U32 increment)
		2320	CODE:
		2321	RETVAL = env->mutex_set_increment (env, increment);
		2322	OUTPUT:
		2323	RETVAL
		2324
		2325	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2326	CODE:
		2327	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2328	OUTPUT:
		2329	RETVAL
		2330
		2331	int mutex_set_align (DB_ENV *env, U32 align)
		2332	CODE:
		2333	RETVAL = env->mutex_set_align (env, align);
		2334	OUTPUT:
		2335	RETVAL
		2336
		2337	#endif
		2338
		2339	DB_TXN *
		2340	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2341	CODE:
		2342	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2343	if (errno)
		2344	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2345	OUTPUT:
		2346	RETVAL
		2347
		2348	#if DB_VERSION_MINOR >= 5
		2349
		2350	DB_TXN *
		2351	cdsgroup_begin (DB_ENV *env)
		2352	CODE:
		2353	errno = env->cdsgroup_begin (env, &RETVAL);
		2354	if (errno)
		2355	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2356	OUTPUT:
		2357	RETVAL
		2358
		2359	#endif
953		2360
954	MODULE = BDB PACKAGE = BDB::Db	2361	MODULE = BDB PACKAGE = BDB::Db
955		2362
		2363	void
		2364	DESTROY (DB_ornuked *db)
		2365	CODE:
		2366	if (db)
		2367	{
		2368	SV *env = (SV *)db->app_private;
		2369	db->close (db, 0);
		2370	SvREFCNT_dec (env);
		2371	}
		2372
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2373	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2374	CODE:
		2375	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2376	OUTPUT:
		2377	RETVAL
957		2378
		2379	int set_pagesize (DB *db, U32 pagesize)
		2380	CODE:
		2381	RETVAL = db->set_pagesize (db, pagesize);
		2382	OUTPUT:
		2383	RETVAL
		2384
958	int set_flags (DB *env, U32 flags, int onoff)	2385	int set_flags (DB *db, U32 flags)
		2386	CODE:
		2387	RETVAL = db->set_flags (db, flags);
		2388	OUTPUT:
		2389	RETVAL
959		2390
960	int set_encrypt (DB *db, const char *password, U32 flags)	2391	int set_encrypt (DB *db, const char *password, U32 flags)
		2392	CODE:
		2393	RETVAL = db->set_encrypt (db, password, flags);
		2394	OUTPUT:
		2395	RETVAL
961		2396
962	int set_lorder (DB *db, int lorder)	2397	int set_lorder (DB *db, int lorder)
963		2398	CODE:
		2399	RETVAL = db->set_lorder (db, lorder);
		2400	OUTPUT:
		2401	RETVAL
964		2402
965	int set_bt_minkey (DB *db, U32 minkey)	2403	int set_bt_minkey (DB *db, U32 minkey)
		2404	CODE:
		2405	RETVAL = db->set_bt_minkey (db, minkey);
		2406	OUTPUT:
		2407	RETVAL
966		2408
967	int set_re_delim(DB *db, int delim);	2409	int set_re_delim (DB *db, int delim)
		2410	CODE:
		2411	RETVAL = db->set_re_delim (db, delim);
		2412	OUTPUT:
		2413	RETVAL
968		2414
969	int set_re_pad (DB *db, int re_pad)	2415	int set_re_pad (DB *db, int re_pad)
		2416	CODE:
		2417	RETVAL = db->set_re_pad (db, re_pad);
		2418	OUTPUT:
		2419	RETVAL
970		2420
971	int set_re_source (DB *db, char *source)	2421	int set_re_source (DB *db, char *source)
		2422	CODE:
		2423	RETVAL = db->set_re_source (db, source);
		2424	OUTPUT:
		2425	RETVAL
972		2426
973	int set_re_len (DB *db, U32 re_len)	2427	int set_re_len (DB *db, U32 re_len)
		2428	CODE:
		2429	RETVAL = db->set_re_len (db, re_len);
		2430	OUTPUT:
		2431	RETVAL
974		2432
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2433	int set_h_ffactor (DB *db, U32 h_ffactor)
		2434	CODE:
		2435	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2436	OUTPUT:
		2437	RETVAL
976		2438
977	int set_h_nelem (DB *db, U32 h_nelem)	2439	int set_h_nelem (DB *db, U32 h_nelem)
		2440	CODE:
		2441	RETVAL = db->set_h_nelem (db, h_nelem);
		2442	OUTPUT:
		2443	RETVAL
978		2444
979	int set_q_extentsize (DB *db, U32 extentsize)	2445	int set_q_extentsize (DB *db, U32 extentsize)
		2446	CODE:
		2447	RETVAL = db->set_q_extentsize (db, extentsize);
		2448	OUTPUT:
		2449	RETVAL
980		2450
		2451	DBC *
		2452	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2453	CODE:
		2454	errno = db->cursor (db, txn, &RETVAL, flags);
		2455	if (errno)
		2456	croak ("DB->cursor: %s", db_strerror (errno));
		2457	OUTPUT:
		2458	RETVAL
981		2459
		2460	#if DB_VERSION_MINOR >= 3
		2461
		2462	DB_SEQUENCE *
		2463	sequence (DB *db, U32 flags = 0)
		2464	CODE:
		2465	{
		2466	errno = db_sequence_create (&RETVAL, db, flags);
		2467	if (errno)
		2468	croak ("db_sequence_create: %s", db_strerror (errno));
		2469	}
		2470	OUTPUT:
		2471	RETVAL
		2472
		2473	#endif
		2474
		2475
		2476	MODULE = BDB PACKAGE = BDB::Txn
		2477
		2478	void
		2479	DESTROY (DB_TXN_ornuked *txn)
		2480	CODE:
		2481	if (txn)
		2482	txn->abort (txn);
		2483
		2484	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2485	CODE:
		2486	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2487	OUTPUT:
		2488	RETVAL
		2489
		2490	int failed (DB_TXN *txn)
		2491	CODE:
		2492	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2493	OUTPUT:
		2494	RETVAL
		2495
		2496
		2497	MODULE = BDB PACKAGE = BDB::Cursor
		2498
		2499	void
		2500	DESTROY (DBC_ornuked *dbc)
		2501	CODE:
		2502	if (dbc)
		2503	dbc->c_close (dbc);
		2504
		2505	#if DB_VERSION_MINOR >= 6
		2506
		2507	int set_priority (DBC *dbc, int priority)
		2508	CODE:
		2509	dbc->set_priority (dbc, priority);
		2510
		2511	#endif
		2512
		2513	#if DB_VERSION_MINOR >= 3
		2514
		2515	MODULE = BDB PACKAGE = BDB::Sequence
		2516
		2517	void
		2518	DESTROY (DB_SEQUENCE_ornuked *seq)
		2519	CODE:
		2520	if (seq)
		2521	seq->close (seq, 0);
		2522
		2523	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2524	CODE:
		2525	RETVAL = seq->initial_value (seq, value);
		2526	OUTPUT:
		2527	RETVAL
		2528
		2529	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2530	CODE:
		2531	RETVAL = seq->set_cachesize (seq, size);
		2532	OUTPUT:
		2533	RETVAL
		2534
		2535	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2536	CODE:
		2537	RETVAL = seq->set_flags (seq, flags);
		2538	OUTPUT:
		2539	RETVAL
		2540
		2541	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2542	CODE:
		2543	RETVAL = seq->set_range (seq, min, max);
		2544	OUTPUT:
		2545	RETVAL
		2546
		2547	#endif
		2548
		2549

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