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Comparing BDB/BDB.xs (file contents):
Revision 1.4 by root, Mon Feb 5 22:31:05 2007 UTC vs.
Revision 1.81 by root, Tue Feb 2 04:28:06 2016 UTC

1	/* solaris */	1	#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2	#define _POSIX_PTHREAD_SEMANTICS 1
3		2
4	#if __linux && !defined(_GNU_SOURCE)	3	#include "xthread.h"
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		4
11	#include <errno.h>	5	#include <errno.h>
12		6
13	#include "EXTERN.h"	7	#include "EXTERN.h"
14	#include "perl.h"	8	#include "perl.h"
15	#include "XSUB.h"	9	#include "XSUB.h"
16		10
17	#include <pthread.h>	11	#include "schmorp.h"
		12
		13	// perl stupidly defines these as argument-less macros, breaking
		14	// lots and lots of code.
		15	#undef open
		16	#undef close
		17	#undef abort
		18	#undef malloc
		19	#undef free
		20	#undef send
18		21
19	#include <stddef.h>	22	#include <stddef.h>
20	#include <stdlib.h>	23	#include <stdlib.h>
21	#include <errno.h>	24	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	25	#include <sys/types.h>
24	#include <limits.h>	26	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	27	#include <fcntl.h>
27		28
		29	#ifndef _WIN32
		30	# include <sys/time.h>
		31	# include <unistd.h>
		32	#endif
		33
28	#include <db.h>	34	#include <db.h>
		35
		36	#define DBVER DB_VERSION_MAJOR * 100 + DB_VERSION_MINOR
		37
		38	#if DBVER < 403
		39	# error you need Berkeley DB 4.3 or a newer version installed
		40	#endif
29		41
30	/* number of seconds after which idle threads exit */	42	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	43	#define IDLE_TIMEOUT 10
32		44
33	/* wether word reads are potentially non-atomic.	45	typedef SV SV_mutable;
34	* this is conservatice, likely most arches this runs	46
35	* on have atomic word read/writes.	47	typedef DB_ENV DB_ENV_ornull;
36	*/	48	typedef DB_TXN DB_TXN_ornull;
37	#ifndef WORDACCESS_UNSAFE	49	typedef DBC DBC_ornull;
38	# if __i386 || __x86_64	50	typedef DB DB_ornull;
39	# define WORDACCESS_UNSAFE 0	51
40	# else	52	typedef DB_ENV DB_ENV_ornuked;
41	# define WORDACCESS_UNSAFE 1	53	typedef DB_TXN DB_TXN_ornuked;
		54	typedef DBC DBC_ornuked;
		55	typedef DB DB_ornuked;
		56
		57	#if DBVER >= 403
		58	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		59	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
42	# endif	60	#endif
43	#endif
44		61
45	typedef SV SV8; /* byte-sv, used for argument-checking */	62	typedef char *bdb_filename;
46	typedef char *octetstring;
47		63
48	static SV *prepare_cb;	64	static SV *prepare_cb;
49		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
50	static inline char *	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 *
51	strdup_ornull (const char *s)	127	strdup_ornull (const char *s)
52	{	128	{
53	return s ? strdup (s) : 0;	129	return s ? strdup (s) : 0;
54	}	130	}
55		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
56	enum {	162	enum {
57	REQ_QUIT,	163	REQ_QUIT,
58	REQ_ENV_OPEN, REQ_ENV_CLOSE,	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, REQ_ENV_LSN_RESET, REQ_ENV_FILEID_RESET,
59	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT,	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,
60	};	172	};
61		173
62	typedef struct aio_cb	174	typedef struct bdb_cb
63	{	175	{
64	struct aio_cb *volatile next;	176	struct bdb_cb *volatile next;
65	SV *callback;	177	SV *callback;
66	int type, pri, result;	178	int type, pri, result;
67		179
68	DB_ENV *env;	180	DB_ENV *env;
69	DB *db;	181	DB *db;
70	DB_TXN *txn;	182	DB_TXN *txn;
71	DBC *cursor;	183	DBC *dbc;
		184
		185	UV uv1;
72	int int1, int2;	186	int int1, int2;
73	U32 uint1, uint2;	187	U32 uint1, uint2;
74	char *buf1, *buf2;	188	char *buf1, *buf2, *buf3;
		189	SV *sv1, *sv2, *sv3;
75		190
76	DBT dbt1, dbt2, dbt3;	191	DBT dbt1, dbt2, dbt3;
77	} aio_cb;	192	DB_KEY_RANGE key_range;
		193	#if DBVER >= 403
		194	DB_SEQUENCE *seq;
		195	db_seq_t seq_t;
		196	#endif
78		197
		198	SV *rsv1, *rsv2; // keep some request objects alive
		199	} bdb_cb;
		200
79	typedef aio_cb *aio_req;	201	typedef bdb_cb *bdb_req;
80		202
81	enum {	203	enum {
82	PRI_MIN = -4,	204	PRI_MIN = -4,
83	PRI_MAX = 4,	205	PRI_MAX = 4,
84		206
…		…
87	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	209	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
88	};	210	};
89		211
90	#define AIO_TICKS ((1000000 + 1023) >> 10)	212	#define AIO_TICKS ((1000000 + 1023) >> 10)
91		213
		214	static SV *on_next_submit;
		215
92	static unsigned int max_poll_time = 0;	216	static unsigned int max_poll_time = 0;
93	static unsigned int max_poll_reqs = 0;	217	static unsigned int max_poll_reqs = 0;
94		218
95	/* calculcate time difference in ~1/AIO_TICKS of a second */	219	/* calculcate time difference in ~1/AIO_TICKS of a second */
96	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	220	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
101		225
102	static int next_pri = DEFAULT_PRI + PRI_BIAS;	226	static int next_pri = DEFAULT_PRI + PRI_BIAS;
103		227
104	static unsigned int started, idle, wanted;	228	static unsigned int started, idle, wanted;
105		229
106	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
107	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
108	#else
109	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
110	#endif
111
112	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
113	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
114
115	/* worker threads management */	230	/* worker threads management */
116	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	231	static xmutex_t wrklock = X_MUTEX_INIT;
117		232
118	typedef struct worker {	233	typedef struct worker {
119	/* locked by wrklock */	234	/* locked by wrklock */
120	struct worker *prev, *next;	235	struct worker *prev, *next;
121		236
122	pthread_t tid;	237	xthread_t tid;
123		238
124	/* locked by reslock, reqlock or wrklock */	239	/* locked by reslock, reqlock or wrklock */
125	aio_req req; /* currently processed request */	240	bdb_req req; /* currently processed request */
126	void *dbuf;	241	void *dbuf;
127	DIR *dirp;	242	DIR *dirp;
128	} worker;	243	} worker;
129		244
130	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	245	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
142	}	257	}
143		258
144	static volatile unsigned int nreqs, nready, npending;	259	static volatile unsigned int nreqs, nready, npending;
145	static volatile unsigned int max_idle = 4;	260	static volatile unsigned int max_idle = 4;
146	static volatile unsigned int max_outstanding = 0xffffffff;	261	static volatile unsigned int max_outstanding = 0xffffffff;
147	static int respipe [2];	262	static s_epipe respipe;
148		263
149	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	264	static xmutex_t reslock = X_MUTEX_INIT;
150	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	265	static xmutex_t reqlock = X_MUTEX_INIT;
151	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	266	static xcond_t reqwait = X_COND_INIT;
152		267
153	#if WORDACCESS_UNSAFE	268	#if WORDACCESS_UNSAFE
154		269
155	static unsigned int get_nready ()	270	static unsigned int get_nready (void)
156	{	271	{
157	unsigned int retval;	272	unsigned int retval;
158		273
159	LOCK (reqlock);	274	X_LOCK (reqlock);
160	retval = nready;	275	retval = nready;
161	UNLOCK (reqlock);	276	X_UNLOCK (reqlock);
162		277
163	return retval;	278	return retval;
164	}	279	}
165		280
166	static unsigned int get_npending ()	281	static unsigned int get_npending (void)
167	{	282	{
168	unsigned int retval;	283	unsigned int retval;
169		284
170	LOCK (reslock);	285	X_LOCK (reslock);
171	retval = npending;	286	retval = npending;
172	UNLOCK (reslock);	287	X_UNLOCK (reslock);
173		288
174	return retval;	289	return retval;
175	}	290	}
176		291
177	static unsigned int get_nthreads ()	292	static unsigned int get_nthreads (void)
178	{	293	{
179	unsigned int retval;	294	unsigned int retval;
180		295
181	LOCK (wrklock);	296	X_LOCK (wrklock);
182	retval = started;	297	retval = started;
183	UNLOCK (wrklock);	298	X_UNLOCK (wrklock);
184		299
185	return retval;	300	return retval;
186	}	301	}
187		302
188	#else	303	#else
…		…
197	* a somewhat faster data structure might be nice, but	312	* a somewhat faster data structure might be nice, but
198	* with 8 priorities this actually needs <20 insns	313	* with 8 priorities this actually needs <20 insns
199	* per shift, the most expensive operation.	314	* per shift, the most expensive operation.
200	*/	315	*/
201	typedef struct {	316	typedef struct {
202	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	317	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
203	int size;	318	int size;
204	} reqq;	319	} reqq;
205		320
206	static reqq req_queue;	321	static reqq req_queue;
207	static reqq res_queue;	322	static reqq res_queue;
208		323
209	int reqq_push (reqq *q, aio_req req)	324	int reqq_push (reqq *q, bdb_req req)
210	{	325	{
211	int pri = req->pri;	326	int pri = req->pri;
212	req->next = 0;	327	req->next = 0;
213		328
214	if (q->qe[pri])	329	if (q->qe[pri])
…		…
220	q->qe[pri] = q->qs[pri] = req;	335	q->qe[pri] = q->qs[pri] = req;
221		336
222	return q->size++;	337	return q->size++;
223	}	338	}
224		339
225	aio_req reqq_shift (reqq *q)	340	bdb_req reqq_shift (reqq *q)
226	{	341	{
227	int pri;	342	int pri;
228		343
229	if (!q->size)	344	if (!q->size)
230	return 0;	345	return 0;
231		346
232	--q->size;	347	--q->size;
233		348
234	for (pri = NUM_PRI; pri--; )	349	for (pri = NUM_PRI; pri--; )
235	{	350	{
236	aio_req req = q->qs[pri];	351	bdb_req req = q->qs[pri];
237		352
238	if (req)	353	if (req)
239	{	354	{
240	if (!(q->qs[pri] = req->next))	355	if (!(q->qs[pri] = req->next))
241	q->qe[pri] = 0;	356	q->qe[pri] = 0;
…		…
245	}	360	}
246		361
247	abort ();	362	abort ();
248	}	363	}
249		364
250	static int poll_cb ();	365	static int poll_cb (void);
251	static void req_free (aio_req req);	366	static void req_free (bdb_req req);
252	static void req_cancel (aio_req req);
253		367
254	static int req_invoke (aio_req req)	368	static int req_invoke (bdb_req req)
255	{	369	{
256	dSP;	370	switch (req->type)
257
258	if (SvOK (req->callback))
259	{	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
260	ENTER;	442	ENTER;
261	SAVETMPS;	443	SAVETMPS;
262	PUSHMARK (SP);	444	PUSHMARK (SP);
263	EXTEND (SP, 1);
264
265	switch (req->type)
266	{
267	}
268
269	errno = req->result;
270		445
271	PUTBACK;	446	PUTBACK;
272	call_sv (req->callback, G_VOID | G_EVAL);	447	call_sv (req->callback, G_VOID | G_EVAL);
273	SPAGAIN;	448	SPAGAIN;
274		449
275	FREETMPS;	450	FREETMPS;
276	LEAVE;	451	LEAVE;
		452
		453	return !SvTRUE (ERRSV);
277	}	454	}
278		455
279	return !SvTRUE (ERRSV);	456	return 1;
280	}	457	}
281		458
282	static void req_free (aio_req req)	459	static void req_free (bdb_req req)
283	{	460	{
		461	SvREFCNT_dec (req->callback);
		462
		463	SvREFCNT_dec (req->rsv1);
		464	SvREFCNT_dec (req->rsv2);
		465
284	free (req->buf1);	466	free (req->buf1);
285	free (req->buf2);	467	free (req->buf2);
		468	free (req->buf3);
		469
286	Safefree (req);	470	Safefree (req);
287	}	471	}
288		472
289	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);
290		482
291	static void start_thread (void)	483	static void start_thread (void)
292	{	484	{
293	sigset_t fullsigset, oldsigset;
294	pthread_attr_t attr;
295
296	worker *wrk = calloc (1, sizeof (worker));	485	worker *wrk = calloc (1, sizeof (worker));
297		486
298	if (!wrk)	487	if (!wrk)
299	croak ("unable to allocate worker thread data");	488	croak ("unable to allocate worker thread data");
300		489
301	pthread_attr_init (&attr);
302	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
303	#ifdef PTHREAD_SCOPE_PROCESS
304	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
305	#endif
306
307	sigfillset (&fullsigset);
308
309	LOCK (wrklock);	490	X_LOCK (wrklock);
310	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
311
312	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	491	if (xthread_create (&wrk->tid, bdb_proc, (void *)wrk))
313	{	492	{
314	wrk->prev = &wrk_first;	493	wrk->prev = &wrk_first;
315	wrk->next = wrk_first.next;	494	wrk->next = wrk_first.next;
316	wrk_first.next->prev = wrk;	495	wrk_first.next->prev = wrk;
317	wrk_first.next = wrk;	496	wrk_first.next = wrk;
318	++started;	497	++started;
319	}	498	}
320	else	499	else
321	free (wrk);	500	free (wrk);
322		501
323	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
324	UNLOCK (wrklock);	502	X_UNLOCK (wrklock);
325	}	503	}
326		504
327	static void maybe_start_thread ()	505	static void maybe_start_thread (void)
328	{	506	{
329	if (get_nthreads () >= wanted)	507	if (get_nthreads () >= wanted)
330	return;	508	return;
331		509
332	/* todo: maybe use idle here, but might be less exact */	510	/* todo: maybe use idle here, but might be less exact */
…		…
334	return;	512	return;
335		513
336	start_thread ();	514	start_thread ();
337	}	515	}
338		516
339	static void req_send (aio_req req)	517	static void req_send (bdb_req req)
340	{	518	{
341	SV *wait_callback = 0;	519	SV *wait_callback = 0;
342		520
343	// synthesize callback if none given	521	if (on_next_submit)
344	if (!SvOK (req->callback))
345	{	522	{
346	dSP;	523	dSP;
		524	SV *cb = sv_2mortal (on_next_submit);
		525
		526	on_next_submit = 0;
		527
347	PUSHMARK (SP);	528	PUSHMARK (SP);
348	PUTBACK;	529	PUTBACK;
349	int count = call_sv (prepare_cb, G_ARRAY);	530	call_sv (cb, G_DISCARD | G_EVAL);
350	SPAGAIN;	531	SPAGAIN;
351
352	if (count != 2)
353	croak ("prepare callback must return exactly two values\n");
354
355	wait_callback = SvREFCNT_inc (POPs);
356	SvREFCNT_dec (req->callback);
357	req->callback = SvREFCNT_inc (POPs);
358	}	532	}
359		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
360	++nreqs;	563	++nreqs;
361		564
362	LOCK (reqlock);	565	X_LOCK (reqlock);
363	++nready;	566	++nready;
364	reqq_push (&req_queue, req);	567	reqq_push (&req_queue, req);
365	pthread_cond_signal (&reqwait);	568	X_COND_SIGNAL (reqwait);
366	UNLOCK (reqlock);	569	X_UNLOCK (reqlock);
367		570
368	maybe_start_thread ();	571	maybe_start_thread ();
369		572
370	if (wait_callback)	573	if (wait_callback)
371	{	574	{
372	dSP;	575	dSP;
373	PUSHMARK (SP);	576	PUSHMARK (SP);
374	PUTBACK;	577	PUTBACK;
375	call_sv (wait_callback, G_DISCARD);	578	call_sv (wait_callback, G_DISCARD);
376	SvREFCNT_dec (wait_callback);
377	}	579	}
378	}	580	}
379		581
380	static void end_thread (void)	582	static void end_thread (void)
381	{	583	{
382	aio_req req;	584	bdb_req req = calloc (1, sizeof (bdb_cb));
383
384	Newz (0, req, 1, aio_cb);
385		585
386	req->type = REQ_QUIT;	586	req->type = REQ_QUIT;
387	req->pri = PRI_MAX + PRI_BIAS;	587	req->pri = PRI_MAX + PRI_BIAS;
388		588
389	LOCK (reqlock);	589	X_LOCK (reqlock);
390	reqq_push (&req_queue, req);	590	reqq_push (&req_queue, req);
391	pthread_cond_signal (&reqwait);	591	X_COND_SIGNAL (reqwait);
392	UNLOCK (reqlock);	592	X_UNLOCK (reqlock);
393		593
394	LOCK (wrklock);	594	X_LOCK (wrklock);
395	--started;	595	--started;
396	UNLOCK (wrklock);	596	X_UNLOCK (wrklock);
397	}	597	}
398		598
399	static void set_max_idle (int nthreads)	599	static void set_max_idle (int nthreads)
400	{	600	{
401	if (WORDACCESS_UNSAFE) LOCK (reqlock);	601	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
402	max_idle = nthreads <= 0 ? 1 : nthreads;	602	max_idle = nthreads <= 0 ? 1 : nthreads;
403	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	603	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
404	}	604	}
405		605
406	static void min_parallel (int nthreads)	606	static void min_parallel (int nthreads)
407	{	607	{
408	if (wanted < nthreads)	608	if (wanted < nthreads)
…		…
416		616
417	while (started > wanted)	617	while (started > wanted)
418	end_thread ();	618	end_thread ();
419	}	619	}
420		620
421	static void poll_wait ()	621	static void poll_wait (void)
422	{	622	{
423	fd_set rfd;
424
425	while (nreqs)	623	while (nreqs)
426	{	624	{
427	int size;	625	int size;
428	if (WORDACCESS_UNSAFE) LOCK (reslock);	626	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
429	size = res_queue.size;	627	size = res_queue.size;
430	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	628	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
431		629
432	if (size)	630	if (size)
433	return;	631	return;
434		632
435	maybe_start_thread ();	633	maybe_start_thread ();
436		634
437	FD_ZERO(&rfd);	635	s_epipe_wait (&respipe);
438	FD_SET(respipe [0], &rfd);
439
440	select (respipe [0] + 1, &rfd, 0, 0, 0);
441	}	636	}
442	}	637	}
443		638
444	static int poll_cb ()	639	static int poll_cb (void)
445	{	640	{
446	dSP;	641	dSP;
447	int count = 0;	642	int count = 0;
448	int maxreqs = max_poll_reqs;	643	int maxreqs = max_poll_reqs;
449	int do_croak = 0;	644	int do_croak = 0;
450	struct timeval tv_start, tv_now;	645	struct timeval tv_start, tv_now;
451	aio_req req;	646	bdb_req req;
452		647
453	if (max_poll_time)	648	if (max_poll_time)
454	gettimeofday (&tv_start, 0);	649	gettimeofday (&tv_start, 0);
455		650
456	for (;;)	651	for (;;)
457	{	652	{
458	for (;;)	653	for (;;)
459	{	654	{
460	maybe_start_thread ();	655	maybe_start_thread ();
461		656
462	LOCK (reslock);	657	X_LOCK (reslock);
463	req = reqq_shift (&res_queue);	658	req = reqq_shift (&res_queue);
464		659
465	if (req)	660	if (req)
466	{	661	{
467	--npending;	662	--npending;
468		663
469	if (!res_queue.size)	664	if (!res_queue.size)
470	{
471	/* read any signals sent by the worker threads */	665	/* read any signals sent by the worker threads */
472	char buf [4];	666	s_epipe_drain (&respipe);
473	while (read (respipe [0], buf, 4) == 4)
474	;
475	}
476	}	667	}
477		668
478	UNLOCK (reslock);	669	X_UNLOCK (reslock);
479		670
480	if (!req)	671	if (!req)
481	break;	672	break;
482		673
483	--nreqs;	674	--nreqs;
…		…
513	}	704	}
514		705
515	return count;	706	return count;
516	}	707	}
517		708
518	static void create_pipe ()
519	{
520	if (pipe (respipe))
521	croak ("unable to initialize result pipe");
522
523	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
524	croak ("cannot set result pipe to nonblocking mode");
525
526	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
527	croak ("cannot set result pipe to nonblocking mode");
528	}
529
530	/*****************************************************************************/	709	/*****************************************************************************/
531		710
532	static void *aio_proc (void *thr_arg)	711	static void
		712	bdb_request (bdb_req req)
533	{	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	#if DBVER >= 407
		865	case REQ_ENV_LSN_RESET:
		866	req->result = req->env->lsn_reset (req->env, req->buf1, req->uint1);
		867	break;
		868
		869	case REQ_ENV_FILEID_RESET:
		870	req->result = req->env->fileid_reset (req->env, req->buf1, req->uint1);
		871	break;
		872	#endif
		873
		874	case REQ_ENV_LOG_ARCHIVE:
		875	{
		876	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		877	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		878	req->buf1 = (char *)listp;
		879	}
		880	break;
		881
		882	default:
		883	req->result = ENOSYS;
		884	break;
		885	}
		886
		887	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		888	req->txn->flags |= TXN_DEADLOCK;
		889	}
		890
		891	X_THREAD_PROC (bdb_proc)
		892	{
534	aio_req req;	893	bdb_req req;
535	struct timespec ts;	894	struct timespec ts;
536	worker *self = (worker *)thr_arg;	895	worker *self = (worker *)thr_arg;
537		896
538	/* try to distribute timeouts somewhat evenly */	897	/* try to distribute timeouts somewhat evenly */
539	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	898	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
540	* (1000000000UL / 1024UL);
541		899
542	for (;;)	900	for (;;)
543	{	901	{
544	ts.tv_sec = time (0) + IDLE_TIMEOUT;	902	ts.tv_sec = time (0) + IDLE_TIMEOUT;
545		903
546	LOCK (reqlock);	904	X_LOCK (reqlock);
547		905
548	for (;;)	906	for (;;)
549	{	907	{
550	self->req = req = reqq_shift (&req_queue);	908	self->req = req = reqq_shift (&req_queue);
551		909
552	if (req)	910	if (req)
553	break;	911	break;
554		912
555	++idle;	913	++idle;
556		914
557	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	915	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
558	== ETIMEDOUT)	916	== ETIMEDOUT)
559	{	917	{
560	if (idle > max_idle)	918	if (idle > max_idle)
561	{	919	{
562	--idle;	920	--idle;
563	UNLOCK (reqlock);	921	X_UNLOCK (reqlock);
564	LOCK (wrklock);	922	X_LOCK (wrklock);
565	--started;	923	--started;
566	UNLOCK (wrklock);	924	X_UNLOCK (wrklock);
567	goto quit;	925	goto quit;
568	}	926	}
569		927
570	/* we are allowed to idle, so do so without any timeout */	928	/* we are allowed to idle, so do so without any timeout */
571	pthread_cond_wait (&reqwait, &reqlock);	929	X_COND_WAIT (reqwait, reqlock);
572	ts.tv_sec = time (0) + IDLE_TIMEOUT;	930	ts.tv_sec = time (0) + IDLE_TIMEOUT;
573	}	931	}
574		932
575	--idle;	933	--idle;
576	}	934	}
577		935
578	--nready;	936	--nready;
579		937
580	UNLOCK (reqlock);	938	X_UNLOCK (reqlock);
581		939
582	switch (req->type)	940	if (req->type == REQ_QUIT)
583	{	941	{
584	case REQ_QUIT:	942	X_LOCK (reslock);
		943	free (req);
		944	self->req = 0;
		945	X_UNLOCK (reslock);
		946
585	goto quit;	947	goto quit;
586
587	case REQ_ENV_OPEN:
588	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
589	break;
590
591	case REQ_ENV_CLOSE:
592	req->result = req->env->close (req->env, req->uint1);
593	break;
594
595	case REQ_DB_OPEN:
596	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
597	break;
598
599	case REQ_DB_CLOSE:
600	req->result = req->db->close (req->db, req->uint1);
601	break;
602
603	case REQ_DB_COMPACT:
604	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
605	break;
606
607	case REQ_DB_SYNC:
608	req->result = req->db->sync (req->db, req->uint1);
609	break;
610
611	case REQ_DB_PUT:
612	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
613	break;
614
615	default:
616	req->result = ENOSYS;
617	break;
618	}	948	}
619		949
		950	bdb_request (req);
		951
620	LOCK (reslock);	952	X_LOCK (reslock);
621		953
622	++npending;	954	++npending;
623		955
624	if (!reqq_push (&res_queue, req))	956	if (!reqq_push (&res_queue, req))
625	/* write a dummy byte to the pipe so fh becomes ready */	957	s_epipe_signal (&respipe);
626	write (respipe [1], &respipe, 1);
627		958
628	self->req = 0;	959	self->req = 0;
629	worker_clear (self);	960	worker_clear (self);
630		961
631	UNLOCK (reslock);	962	X_UNLOCK (reslock);
632	}	963	}
633		964
634	quit:	965	quit:
635	LOCK (wrklock);	966	X_LOCK (wrklock);
636	worker_free (self);	967	worker_free (self);
637	UNLOCK (wrklock);	968	X_UNLOCK (wrklock);
638		969
639	return 0;	970	return 0;
640	}	971	}
641		972
642	/*****************************************************************************/	973	/*****************************************************************************/
643		974
644	static void atfork_prepare (void)	975	static void atfork_prepare (void)
645	{	976	{
646	LOCK (wrklock);	977	X_LOCK (wrklock);
647	LOCK (reqlock);	978	X_LOCK (reqlock);
648	LOCK (reslock);	979	X_LOCK (reslock);
649	}	980	}
650		981
651	static void atfork_parent (void)	982	static void atfork_parent (void)
652	{	983	{
653	UNLOCK (reslock);	984	X_UNLOCK (reslock);
654	UNLOCK (reqlock);	985	X_UNLOCK (reqlock);
655	UNLOCK (wrklock);	986	X_UNLOCK (wrklock);
656	}	987	}
657		988
658	static void atfork_child (void)	989	static void atfork_child (void)
659	{	990	{
660	aio_req prv;	991	bdb_req prv;
661		992
662	while (prv = reqq_shift (&req_queue))	993	while (prv = reqq_shift (&req_queue))
663	req_free (prv);	994	req_free (prv);
664		995
665	while (prv = reqq_shift (&res_queue))	996	while (prv = reqq_shift (&res_queue))
…		…
680	idle = 0;	1011	idle = 0;
681	nreqs = 0;	1012	nreqs = 0;
682	nready = 0;	1013	nready = 0;
683	npending = 0;	1014	npending = 0;
684		1015
685	close (respipe [0]);
686	close (respipe [1]);
687	create_pipe ();	1016	create_respipe ();
688		1017
689	atfork_parent ();	1018	atfork_parent ();
690	}	1019	}
691		1020
692	#define dREQ(reqtype) \	1021	#define dREQ(reqtype,rsvcnt) \
693	aio_req req; \	1022	bdb_req req; \
694	int req_pri = next_pri; \	1023	int req_pri = next_pri; \
695	next_pri = DEFAULT_PRI + PRI_BIAS; \	1024	next_pri = DEFAULT_PRI + PRI_BIAS; \
696	\	1025	\
697	if (SvOK (callback) && !SvROK (callback)) \	1026	if (callback && SvOK (callback)) \
698	croak ("callback must be undef or of reference type"); \	1027	croak ("callback has illegal type or extra arguments"); \
699	\	1028	\
700	Newz (0, req, 1, aio_cb); \	1029	Newz (0, req, 1, bdb_cb); \
701	if (!req) \	1030	if (!req) \
702	croak ("out of memory during aio_req allocation"); \	1031	croak ("out of memory during bdb_req allocation"); \
703	\	1032	\
704	req->callback = newSVsv (callback); \	1033	req->callback = SvREFCNT_inc (cb); \
705	req->type = (reqtype); \	1034	req->type = (reqtype); \
706	req->pri = req_pri	1035	req->pri = req_pri; \
		1036	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1037	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1038	(void)0;
707		1039
708	#define REQ_SEND \	1040	#define REQ_SEND \
709	req_send (req)	1041	req_send (req)
710		1042
711	#define SvPTR(var, arg, type, class) \	1043	#define SvPTR(var, arg, type, stash, class, nullok) \
712	if (!SvOK (arg)) \	1044	if (!SvOK (arg)) \
		1045	{ \
		1046	if (nullok != 1) \
		1047	croak (# var " must be a " # class " object, not undef"); \
		1048	\
713	(var) = 0; \	1049	(var) = 0; \
714	else if (sv_derived_from ((arg), # class)) \	1050	} \
		1051	else if (SvSTASH (SvRV (arg)) == stash || sv_derived_from ((arg), # class)) \
715	{ \	1052	{ \
716	IV tmp = SvIV ((SV*) SvRV (arg)); \	1053	IV tmp = SvIV ((SV*) SvRV (arg)); \
717	(var) = INT2PTR (type, tmp); \	1054	(var) = INT2PTR (type, tmp); \
		1055	if (!var && nullok != 2) \
		1056	croak (# var " is not a valid " # class " object anymore"); \
718	} \	1057	} \
719	else \	1058	else \
720	Perl_croak (# var " is not of type " # class)	1059	croak (# var " is not of type " # class);
721		1060
722	inline void	1061	#define ARG_MUTABLE(name) \
723	set_dbt (DBT *dbt, SV *sv)	1062	if (SvREADONLY (name)) \
724	{	1063	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
725	STRLEN len;
726	char *data = SvPVbyte (sv, len);
727		1064
728	dbt->data = malloc (len);	1065	static SV *
729	memcpy (dbt->data, data, len);	1066	newSVptr (void *ptr, HV *stash)
730	dbt->size = len;	1067	{
		1068	SV *rv = NEWSV (0, 0);
		1069	sv_upgrade (rv, SVt_PVMG);
		1070	sv_setiv (rv, PTR2IV (ptr));
		1071
		1072	return sv_bless (newRV_noinc (rv), stash);
731	}	1073	}
732		1074
		1075	static void
		1076	ptr_nuke (SV *sv)
		1077	{
		1078	assert (SvROK (sv));
		1079	sv_setiv (SvRV (sv), 0);
		1080	}
		1081
		1082	static int
		1083	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1084	{
		1085	if (*mg->mg_ptr == '!') // should always be the case
		1086	if (-30999 <= errno && errno <= -30800)
		1087	{
		1088	sv_setnv (sv, (NV)errno);
		1089	sv_setpv (sv, db_strerror (errno));
		1090	SvNOK_on (sv); /* what a wonderful hack! */
		1091	// ^^^ copied from perl sources
		1092	return 0;
		1093	}
		1094
		1095	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1096	}
		1097
		1098	static MGVTBL vtbl_errno;
		1099
		1100	// this wonderful hack :( patches perl's $! variable to support our errno values
		1101	static void
		1102	patch_errno (void)
		1103	{
		1104	SV *sv;
		1105	MAGIC *mg;
		1106
		1107	if (!(sv = get_sv ("!", 1)))
		1108	return;
		1109
		1110	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1111	return;
		1112
		1113	if (mg->mg_virtual != &PL_vtbl_sv)
		1114	return;
		1115
		1116	vtbl_errno = PL_vtbl_sv;
		1117	vtbl_errno.svt_get = errno_get;
		1118	mg->mg_virtual = &vtbl_errno;
		1119	}
		1120
		1121	#if __GNUC__ >= 4
		1122	# define noinline __attribute__ ((noinline))
		1123	#else
		1124	# define noinline
		1125	#endif
		1126
		1127	static noinline SV *
		1128	pop_callback (I32 *ritems, SV *sv)
		1129	{
		1130	if (SvROK (sv))
		1131	{
		1132	HV *st;
		1133	GV *gvp;
		1134	CV *cv;
		1135	const char *name;
		1136
		1137	/* forgive me */
		1138	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1139	&& (st = SvSTASH (SvRV (sv)))
		1140	&& (name = HvNAME_get (st))
		1141	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1142	return 0;
		1143
		1144	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1145	{
		1146	--*ritems;
		1147	return (SV *)cv;
		1148	}
		1149	}
		1150
		1151	return 0;
		1152	}
		1153
		1154	/*****************************************************************************/
		1155
		1156	#if 0
		1157	static int
		1158	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1159	{
		1160	ssize_t size1 = dbt1->size;
		1161	ssize_t size2 = dbt2->size;
		1162	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1163	size1 <= size2 ? size1 : size2);
		1164
		1165	if (res)
		1166	return res;
		1167	else if (size1 - size2)
		1168	return size1 - size2;
		1169	else
		1170	return 0;
		1171	}
		1172
		1173	static size_t
		1174	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1175	{
		1176	ssize_t size1 = dbt1->size;
		1177	ssize_t size2 = dbt2->size;
		1178	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1179	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1180	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1181
		1182	while (p1 < pe)
		1183	if (*p1++ != *p2++)
		1184	return p1 - (u_int8_t *)dbt1->data - 1;
		1185
		1186	if (size1 < size2) return size1 + 1;
		1187	if (size1 > size2) return size2 + 1;
		1188
		1189	return size1;
		1190	}
		1191	#endif
		1192
		1193	/*****************************************************************************/
		1194
		1195	/* stupid windows defines CALLBACK as well */
		1196	#undef CALLBACK
		1197	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1198
733	MODULE = BDB PACKAGE = BDB	1199	MODULE = BDB PACKAGE = BDB
734		1200
735	PROTOTYPES: ENABLE	1201	PROTOTYPES: ENABLE
736		1202
737	BOOT:	1203	BOOT:
738	{	1204	{
739	HV *stash = gv_stashpv ("BDB", 1);
740
741	static const struct {	1205	static const struct {
742	const char *name;	1206	const char *name;
743	IV iv;	1207	IV iv;
744	} *civ, const_iv[] = {	1208	} *civ, const_iv[] = {
745	#define const_iv(name) { # name, (IV)DB_ ## name },	1209	#define const_iv(name) { # name, (IV)DB_ ## name },
		1210	#if DBVER <= 408
746	const_iv (RPCCLIENT)	1211	const_iv (RPCCLIENT)
		1212	#endif
747	const_iv (INIT_CDB)	1213	const_iv (INIT_CDB)
748	const_iv (INIT_LOCK)	1214	const_iv (INIT_LOCK)
749	const_iv (INIT_LOG)	1215	const_iv (INIT_LOG)
750	const_iv (INIT_MPOOL)	1216	const_iv (INIT_MPOOL)
751	const_iv (INIT_REP)	1217	const_iv (INIT_REP)
752	const_iv (INIT_TXN)	1218	const_iv (INIT_TXN)
753	const_iv (RECOVER)	1219	const_iv (RECOVER)
754	const_iv (INIT_TXN)	1220	const_iv (INIT_TXN)
755	const_iv (RECOVER_FATAL)	1221	const_iv (RECOVER_FATAL)
756	const_iv (CREATE)	1222	const_iv (CREATE)
		1223	const_iv (RDONLY)
757	const_iv (USE_ENVIRON)	1224	const_iv (USE_ENVIRON)
758	const_iv (USE_ENVIRON_ROOT)	1225	const_iv (USE_ENVIRON_ROOT)
759	const_iv (LOCKDOWN)	1226	const_iv (LOCKDOWN)
760	const_iv (PRIVATE)	1227	const_iv (PRIVATE)
761	const_iv (REGISTER)
762	const_iv (SYSTEM_MEM)	1228	const_iv (SYSTEM_MEM)
763	const_iv (AUTO_COMMIT)	1229	const_iv (AUTO_COMMIT)
764	const_iv (CDB_ALLDB)	1230	const_iv (CDB_ALLDB)
765	const_iv (DIRECT_DB)	1231	const_iv (DIRECT_DB)
766	const_iv (DIRECT_LOG)
767	const_iv (DSYNC_DB)
768	const_iv (DSYNC_LOG)
769	const_iv (LOG_AUTOREMOVE)
770	const_iv (LOG_INMEMORY)
771	const_iv (NOLOCKING)	1232	const_iv (NOLOCKING)
772	const_iv (MULTIVERSION)
773	const_iv (NOMMAP)	1233	const_iv (NOMMAP)
774	const_iv (NOPANIC)	1234	const_iv (NOPANIC)
775	const_iv (OVERWRITE)	1235	const_iv (OVERWRITE)
776	const_iv (PANIC_ENVIRONMENT)	1236	const_iv (PANIC_ENVIRONMENT)
777	const_iv (REGION_INIT)	1237	const_iv (REGION_INIT)
778	const_iv (TIME_NOTGRANTED)	1238	const_iv (TIME_NOTGRANTED)
779	const_iv (TXN_NOSYNC)	1239	const_iv (TXN_NOSYNC)
780	const_iv (TXN_SNAPSHOT)	1240	const_iv (TXN_NOT_DURABLE)
781	const_iv (TXN_WRITE_NOSYNC)	1241	const_iv (TXN_WRITE_NOSYNC)
		1242	const_iv (WRITECURSOR)
782	const_iv (YIELDCPU)	1243	const_iv (YIELDCPU)
783	const_iv (ENCRYPT_AES)	1244	const_iv (ENCRYPT_AES)
		1245	#if DBVER < 408
784	const_iv (XA_CREATE)	1246	const_iv (XA_CREATE)
		1247	#endif
785	const_iv (BTREE)	1248	const_iv (BTREE)
786	const_iv (HASH)	1249	const_iv (HASH)
787	const_iv (QUEUE)	1250	const_iv (QUEUE)
788	const_iv (RECNO)	1251	const_iv (RECNO)
789	const_iv (UNKNOWN)	1252	const_iv (UNKNOWN)
790	const_iv (EXCL)	1253	const_iv (EXCL)
791	const_iv (READ_COMMITTED)
792	const_iv (READ_UNCOMMITTED)
793	const_iv (TRUNCATE)	1254	const_iv (TRUNCATE)
794	const_iv (NOSYNC)	1255	const_iv (NOSYNC)
795	const_iv (CHKSUM)	1256	const_iv (CHKSUM)
796	const_iv (ENCRYPT)	1257	const_iv (ENCRYPT)
797	const_iv (TXN_NOT_DURABLE)
798	const_iv (DUP)	1258	const_iv (DUP)
799	const_iv (DUPSORT)	1259	const_iv (DUPSORT)
800	const_iv (RECNUM)	1260	//const_iv (RECNUM)
801	const_iv (RENUMBER)	1261	const_iv (RENUMBER)
802	const_iv (REVSPLITOFF)	1262	const_iv (REVSPLITOFF)
803	const_iv (INORDER)
804	const_iv (CONSUME)	1263	const_iv (CONSUME)
805	const_iv (CONSUME_WAIT)	1264	const_iv (CONSUME_WAIT)
		1265	const_iv (GET_BOTH)
		1266	const_iv (GET_BOTH_RANGE)
		1267	//const_iv (SET_RECNO)
		1268	//const_iv (MULTIPLE)
806	const_iv (SNAPSHOT)	1269	const_iv (SNAPSHOT)
807	const_iv (JOIN_ITEM)	1270	const_iv (JOIN_ITEM)
		1271	const_iv (JOIN_NOSORT)
808	const_iv (RMW)	1272	const_iv (RMW)
809		1273
810	const_iv (NOTFOUND)	1274	const_iv (NOTFOUND)
811	const_iv (KEYEMPTY)	1275	const_iv (KEYEMPTY)
812	const_iv (LOCK_DEADLOCK)	1276	const_iv (LOCK_DEADLOCK)
813	const_iv (LOCK_NOTGRANTED)	1277	const_iv (LOCK_NOTGRANTED)
814	const_iv (RUNRECOVERY)	1278	const_iv (RUNRECOVERY)
815	const_iv (OLD_VERSION)	1279	const_iv (OLD_VERSION)
816	const_iv (REP_HANDLE_DEAD)	1280	const_iv (REP_HANDLE_DEAD)
817	const_iv (REP_LOCKOUT)	1281	const_iv (SECONDARY_BAD)
818
819	const_iv (FREE_SPACE)
820	const_iv (FREELIST_ONLY)
821		1282
822	const_iv (APPEND)	1283	const_iv (APPEND)
823	const_iv (NODUPDATA)	1284	const_iv (NODUPDATA)
824	const_iv (NOOVERWRITE)	1285	const_iv (NOOVERWRITE)
825		1286
826	const_iv (TXN_NOWAIT)	1287	const_iv (TXN_NOWAIT)
827	const_iv (TXN_SNAPSHOT)
828	const_iv (TXN_SYNC)	1288	const_iv (TXN_SYNC)
829		1289
830	const_iv (SET_LOCK_TIMEOUT)	1290	const_iv (SET_LOCK_TIMEOUT)
831	const_iv (SET_TXN_TIMEOUT)	1291	const_iv (SET_TXN_TIMEOUT)
		1292
		1293	const_iv (FIRST)
		1294	const_iv (NEXT)
		1295	const_iv (NEXT_DUP)
		1296	const_iv (NEXT_NODUP)
		1297	const_iv (PREV)
		1298	const_iv (PREV_NODUP)
		1299	const_iv (SET)
		1300	const_iv (SET_RANGE)
		1301	const_iv (LAST)
		1302	const_iv (BEFORE)
		1303	const_iv (AFTER)
		1304	const_iv (CURRENT)
		1305	const_iv (KEYFIRST)
		1306	const_iv (KEYLAST)
		1307	const_iv (NODUPDATA)
		1308
		1309	const_iv (FORCE)
		1310
		1311	const_iv (LOCK_DEFAULT)
		1312	const_iv (LOCK_EXPIRE)
		1313	const_iv (LOCK_MAXLOCKS)
		1314	const_iv (LOCK_MINLOCKS)
		1315	const_iv (LOCK_MINWRITE)
		1316	const_iv (LOCK_OLDEST)
		1317	const_iv (LOCK_RANDOM)
		1318	const_iv (LOCK_YOUNGEST)
		1319
		1320	const_iv (DONOTINDEX)
		1321	const_iv (KEYEMPTY)
		1322	const_iv (KEYEXIST)
		1323	const_iv (LOCK_DEADLOCK)
		1324	const_iv (LOCK_NOTGRANTED)
		1325	const_iv (NOSERVER)
		1326	#if DBVER < 502
		1327	const_iv (NOSERVER_HOME)
		1328	const_iv (NOSERVER_ID)
		1329	#endif
		1330	const_iv (NOTFOUND)
		1331	const_iv (PAGE_NOTFOUND)
		1332	const_iv (REP_DUPMASTER)
		1333	const_iv (REP_HANDLE_DEAD)
		1334	const_iv (REP_HOLDELECTION)
		1335	const_iv (REP_ISPERM)
		1336	const_iv (REP_NEWMASTER)
		1337	const_iv (REP_NEWSITE)
		1338	const_iv (REP_NOTPERM)
		1339	const_iv (REP_UNAVAIL)
		1340	const_iv (RUNRECOVERY)
		1341	const_iv (SECONDARY_BAD)
		1342	const_iv (VERIFY_BAD)
		1343
		1344	const_iv (SALVAGE)
		1345	const_iv (AGGRESSIVE)
		1346	const_iv (PRINTABLE)
		1347	const_iv (NOORDERCHK)
		1348	const_iv (ORDERCHKONLY)
		1349
		1350	const_iv (ARCH_ABS)
		1351	const_iv (ARCH_DATA)
		1352	const_iv (ARCH_LOG)
		1353	const_iv (ARCH_REMOVE)
		1354
		1355	const_iv (VERB_DEADLOCK)
		1356	const_iv (VERB_RECOVERY)
		1357	const_iv (VERB_REPLICATION)
		1358	const_iv (VERB_WAITSFOR)
		1359
		1360	const_iv (VERSION_MAJOR)
		1361	const_iv (VERSION_MINOR)
		1362	const_iv (VERSION_PATCH)
		1363	const_iv (LOGVERSION)
		1364	const_iv (LOGOLDVER)
		1365	#if DBVER >= 403
		1366	const_iv (INORDER)
		1367	const_iv (LOCK_MAXWRITE)
		1368	const_iv (SEQ_DEC)
		1369	const_iv (SEQ_INC)
		1370	const_iv (SEQ_WRAP)
		1371	const_iv (BUFFER_SMALL)
		1372	const_iv (LOG_BUFFER_FULL)
		1373	const_iv (VERSION_MISMATCH)
		1374	#endif
		1375	#if DBVER >= 404
		1376	const_iv (REGISTER)
		1377	const_iv (DSYNC_DB)
		1378	const_iv (READ_COMMITTED)
		1379	const_iv (READ_UNCOMMITTED)
		1380	const_iv (REP_IGNORE)
		1381	const_iv (REP_LOCKOUT)
		1382	const_iv (REP_JOIN_FAILURE)
		1383	const_iv (FREE_SPACE)
		1384	const_iv (FREELIST_ONLY)
		1385	const_iv (VERB_REGISTER)
		1386	#endif
		1387	#if DBVER >= 405
		1388	const_iv (MULTIVERSION)
		1389	const_iv (TXN_SNAPSHOT)
		1390	#endif
		1391	#if DBVER >= 406
		1392	const_iv (PREV_DUP)
		1393	const_iv (PRIORITY_UNCHANGED)
		1394	const_iv (PRIORITY_VERY_LOW)
		1395	const_iv (PRIORITY_LOW)
		1396	const_iv (PRIORITY_DEFAULT)
		1397	const_iv (PRIORITY_HIGH)
		1398	const_iv (PRIORITY_VERY_HIGH)
		1399	const_iv (IGNORE_LEASE)
		1400	#endif
		1401	#if DBVER >= 407
		1402	//const_iv (MULTIPLE_KEY)
		1403	const_iv (LOG_DIRECT)
		1404	const_iv (LOG_DSYNC)
		1405	const_iv (LOG_AUTO_REMOVE)
		1406	const_iv (LOG_IN_MEMORY)
		1407	const_iv (LOG_ZERO)
		1408	#else
		1409	const_iv (DIRECT_LOG)
		1410	const_iv (LOG_AUTOREMOVE)
		1411	# if DBVER >= 403
		1412	const_iv (DSYNC_LOG)
		1413	const_iv (LOG_INMEMORY)
		1414	# endif
		1415	#if DBVER >= 408
		1416	const_iv (LOGVERSION_LATCHING)
		1417	#endif
		1418	#endif
832	};	1419	};
833		1420
		1421	bdb_stash = gv_stashpv ("BDB" , 1);
		1422	bdb_env_stash = gv_stashpv ("BDB::Env" , 1);
		1423	bdb_txn_stash = gv_stashpv ("BDB::Txn" , 1);
		1424	bdb_cursor_stash = gv_stashpv ("BDB::Cursor" , 1);
		1425	bdb_db_stash = gv_stashpv ("BDB::Db" , 1);
		1426	bdb_sequence_stash = gv_stashpv ("BDB::Sequence", 1);
		1427
834	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1428	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
835	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1429	newCONSTSUB (bdb_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
836		1430
837	create_pipe ();	1431	prepare_cb = &PL_sv_undef;
		1432
		1433	{
		1434	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1435	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1436
		1437	newCONSTSUB (bdb_stash, "VERSION_v", newSVpvn (vstring, 3));
		1438	}
		1439
		1440	newCONSTSUB (bdb_stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1441
		1442	create_respipe ();
		1443
838	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1444	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1445	patch_errno ();
839	}	1446	}
840		1447
841	void	1448	void
842	max_poll_reqs (int nreqs)	1449	max_poll_reqs (int nreqs)
843	PROTOTYPE: $	1450	PROTOTYPE: $
…		…
916		1523
917	int	1524	int
918	poll_fileno ()	1525	poll_fileno ()
919	PROTOTYPE:	1526	PROTOTYPE:
920	CODE:	1527	CODE:
921	RETVAL = respipe [0];	1528	RETVAL = s_epipe_fd (&respipe);
922	OUTPUT:	1529	OUTPUT:
923	RETVAL	1530	RETVAL
924		1531
925	int	1532	int
926	poll_cb (...)	1533	poll_cb (...)
…		…
962		1569
963	int	1570	int
964	nthreads ()	1571	nthreads ()
965	PROTOTYPE:	1572	PROTOTYPE:
966	CODE:	1573	CODE:
967	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1574	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
968	RETVAL = started;	1575	RETVAL = started;
969	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1576	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
970	OUTPUT:	1577	OUTPUT:
971	RETVAL	1578	RETVAL
972		1579
973	void	1580	SV *
974	set_sync_prepare (SV *cb)	1581	set_sync_prepare (SV *cb)
975	PROTOTYPE: &	1582	PROTOTYPE: &
976	CODE:	1583	CODE:
977	SvREFCNT_dec (prepare_cb);	1584	RETVAL = prepare_cb;
978	prepare_cb = newSVsv (cb);	1585	prepare_cb = newSVsv (cb);
		1586	OUTPUT:
		1587	RETVAL
		1588
		1589	char *
		1590	strerror (int errorno = errno)
		1591	PROTOTYPE: ;$
		1592	CODE:
		1593	RETVAL = db_strerror (errorno);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void _on_next_submit (SV *cb)
		1598	CODE:
		1599	SvREFCNT_dec (on_next_submit);
		1600	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
979		1601
980	DB_ENV *	1602	DB_ENV *
981	db_env_create (U32 env_flags = 0)	1603	db_env_create (U32 env_flags = 0)
982	CODE:	1604	CODE:
983	{	1605	{
984	errno = db_env_create (&RETVAL, env_flags);	1606	errno = db_env_create (&RETVAL, env_flags);
985	if (errno)	1607	if (errno)
986	croak ("db_env_create: %s", db_strerror (errno));	1608	croak ("db_env_create: %s", db_strerror (errno));
		1609
		1610	if (0)
		1611	{
		1612	RETVAL->set_errcall (RETVAL, debug_errcall);
		1613	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1614	}
987	}	1615	}
988	OUTPUT:	1616	OUTPUT:
989	RETVAL	1617	RETVAL
990		1618
991	void	1619	void
992	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1620	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1621	PREINIT:
		1622	CALLBACK
993	CODE:	1623	CODE:
994	{	1624	{
995	dREQ (REQ_ENV_OPEN);	1625	dREQ (REQ_ENV_OPEN, 1);
996	req->env = env;	1626	req->env = env;
997	req->uint1 = open_flags | DB_THREAD;	1627	req->uint1 = open_flags | DB_THREAD;
998	req->int1 = mode;	1628	req->int1 = mode;
999	req->buf1 = strdup_ornull (db_home);	1629	req->buf1 = strdup_ornull (db_home);
1000	REQ_SEND;	1630	REQ_SEND;
1001	}	1631	}
1002		1632
1003	void	1633	void
1004	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1634	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1635	PREINIT:
		1636	CALLBACK
1005	CODE:	1637	CODE:
1006	{	1638	{
1007	dREQ (REQ_ENV_CLOSE);	1639	dREQ (REQ_ENV_CLOSE, 0);
		1640	ptr_nuke (ST (0));
1008	req->env = env;	1641	req->env = env;
1009	req->uint1 = flags;	1642	req->uint1 = flags;
1010	REQ_SEND;	1643	REQ_SEND;
1011	}	1644	}
1012		1645
		1646	void
		1647	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1648	PREINIT:
		1649	CALLBACK
		1650	CODE:
		1651	{
		1652	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1653	req->env = env;
		1654	req->uint1 = kbyte;
		1655	req->int1 = min;
		1656	req->uint2 = flags;
		1657	REQ_SEND;
		1658	}
		1659
		1660	void
		1661	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1662	PREINIT:
		1663	CALLBACK
		1664	CODE:
		1665	{
		1666	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1667	req->env = env;
		1668	req->uint1 = flags;
		1669	req->uint2 = atype;
		1670	/* req->int2 = 0; dummy */
		1671	REQ_SEND;
		1672	}
		1673
		1674	void
		1675	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1676	PREINIT:
		1677	CALLBACK
		1678	CODE:
		1679	{
		1680	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1681	req->env = env;
		1682	REQ_SEND;
		1683	}
		1684
		1685	void
		1686	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1687	PREINIT:
		1688	CALLBACK
		1689	CODE:
		1690	{
		1691	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1692	req->env = env;
		1693	req->int1 = percent;
		1694	REQ_SEND;
		1695	}
		1696
		1697	void
		1698	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1699	PREINIT:
		1700	CALLBACK
		1701	CODE:
		1702	{
		1703	dREQ (REQ_ENV_DBREMOVE, 2);
		1704	req->env = env;
		1705	req->buf1 = strdup_ornull (file);
		1706	req->buf2 = strdup_ornull (database);
		1707	req->uint1 = flags;
		1708	REQ_SEND;
		1709	}
		1710
		1711	void
		1712	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)
		1713	PREINIT:
		1714	CALLBACK
		1715	CODE:
		1716	{
		1717	dREQ (REQ_ENV_DBRENAME, 2);
		1718	req->env = env;
		1719	req->buf1 = strdup_ornull (file);
		1720	req->buf2 = strdup_ornull (database);
		1721	req->buf3 = strdup_ornull (newname);
		1722	req->uint1 = flags;
		1723	REQ_SEND;
		1724	}
		1725
		1726	void
		1727	db_env_lsn_reset (DB_ENV *env, bdb_filename db, U32 flags = 0, SV *callback = 0)
		1728	ALIAS:
		1729	db_env_fileid_reset = 1
		1730	PREINIT:
		1731	CALLBACK
		1732	CODE:
		1733	{
		1734	dREQ (ix ? REQ_ENV_FILEID_RESET : REQ_ENV_LSN_RESET, 1);
		1735	req->env = env;
		1736	req->uint1 = flags;
		1737	req->buf1 = strdup_ornull (db);
		1738	REQ_SEND;
		1739	}
		1740
		1741	void
		1742	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1743	PREINIT:
		1744	CALLBACK
		1745	CODE:
		1746	{
		1747	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1748	req->sv1 = SvREFCNT_inc (listp);
		1749	req->env = env;
		1750	req->uint1 = flags;
		1751	REQ_SEND;
		1752	}
		1753
1013	DB *	1754	DB *
1014	db_create (DB_ENV *env = 0, U32 flags = 0)	1755	db_create (DB_ENV *env = 0, U32 flags = 0)
1015	CODE:	1756	CODE:
1016	{	1757	{
1017	errno = db_create (&RETVAL, env, flags);	1758	errno = db_create (&RETVAL, env, flags);
1018	if (errno)	1759	if (errno)
1019	croak ("db_env_create: %s", db_strerror (errno));	1760	croak ("db_create: %s", db_strerror (errno));
		1761
		1762	if (RETVAL)
		1763	RETVAL->app_private = (void *)newSVsv (ST (0));
1020	}	1764	}
1021	OUTPUT:	1765	OUTPUT:
1022	RETVAL	1766	RETVAL
1023		1767
1024	void	1768	void
1025	db_open (DB *db, DB_TXN *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1769	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1770	PREINIT:
		1771	CALLBACK
1026	CODE:	1772	CODE:
1027	{	1773	{
1028	dREQ (REQ_DB_OPEN);	1774	dREQ (REQ_DB_OPEN, 2);
1029	req->db = db;	1775	req->db = db;
1030	req->txn = txnid;	1776	req->txn = txnid;
1031	req->buf1 = strdup_ornull (file);	1777	req->buf1 = strdup_ornull (file);
1032	req->buf2 = strdup_ornull (database);	1778	req->buf2 = strdup_ornull (database);
1033	req->int1 = type;	1779	req->int1 = type;
…		…
1035	req->int2 = mode;	1781	req->int2 = mode;
1036	REQ_SEND;	1782	REQ_SEND;
1037	}	1783	}
1038		1784
1039	void	1785	void
1040	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1786	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1787	PREINIT:
		1788	CALLBACK
1041	CODE:	1789	CODE:
1042	{	1790	{
1043	dREQ (REQ_DB_CLOSE);	1791	dREQ (REQ_DB_CLOSE, 0);
		1792	ptr_nuke (ST (0));
1044	req->db = db;	1793	req->db = db;
1045	req->uint1 = flags;	1794	req->uint1 = flags;
		1795	req->sv1 = (SV *)db->app_private;
1046	REQ_SEND;	1796	REQ_SEND;
1047	}	1797	}
1048		1798
		1799	#if DBVER >= 404
		1800
1049	void	1801	void
1050	db_compact (DB *db, DB_TXN *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef)	1802	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)
		1803	PREINIT:
		1804	CALLBACK
1051	CODE:	1805	CODE:
1052	{	1806	{
1053	dREQ (REQ_DB_COMPACT);	1807	dREQ (REQ_DB_COMPACT, 2);
1054	req->db = db;	1808	req->db = db;
1055	req->txn = txn;	1809	req->txn = txn;
1056	set_dbt (&req->dbt1, start);	1810	if (start) sv_to_dbt (&req->dbt1, start);
1057	set_dbt (&req->dbt2, stop);	1811	if (stop ) sv_to_dbt (&req->dbt2, stop );
1058	req->uint1 = flags;	1812	req->uint1 = flags;
1059	REQ_SEND;	1813	REQ_SEND;
1060	}	1814	}
1061		1815
		1816	#endif
		1817
1062	void	1818	void
1063	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1819	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1820	PREINIT:
		1821	CALLBACK
1064	CODE:	1822	CODE:
1065	{	1823	{
1066	dREQ (REQ_DB_SYNC);	1824	dREQ (REQ_DB_SYNC, 1);
1067	req->db = db;	1825	req->db = db;
1068	req->uint1 = flags;	1826	req->uint1 = flags;
1069	REQ_SEND;	1827	REQ_SEND;
1070	}	1828	}
1071		1829
1072	void	1830	void
1073	db_put (DB *db, DB_TXN *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1831	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1832	PREINIT:
		1833	CALLBACK
1074	CODE:	1834	CODE:
1075	{	1835	{
1076	dREQ (REQ_DB_PUT);	1836	dREQ (REQ_DB_VERIFY, 1);
		1837	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
1077	req->db = db;	1838	req->db = db;
1078	req->txn = 0;	1839	req->buf1 = strdup (file);
1079	set_dbt (&req->dbt1, key);	1840	req->buf2 = strdup_ornull (database);
1080	set_dbt (&req->dbt2, data);
1081	req->uint1 = flags;	1841	req->uint1 = flags;
1082	REQ_SEND;	1842	REQ_SEND;
1083	}	1843	}
1084		1844
		1845	void
		1846	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1847	PREINIT:
		1848	CALLBACK
		1849	CODE:
		1850	{
		1851	dREQ (REQ_DB_UPGRADE, 1);
		1852	req->db = db;
		1853	req->buf1 = strdup (file);
		1854	req->uint1 = flags;
		1855	REQ_SEND;
		1856	}
		1857
		1858	void
		1859	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1860	PREINIT:
		1861	CALLBACK
		1862	CODE:
		1863	{
		1864	dREQ (REQ_DB_KEY_RANGE, 2);
		1865	req->db = db;
		1866	req->txn = txn;
		1867	sv_to_dbt (&req->dbt1, key);
		1868	req->uint1 = flags;
		1869	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1870	REQ_SEND;
		1871	}
		1872
		1873	void
		1874	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1875	PREINIT:
		1876	CALLBACK
		1877	CODE:
		1878	{
		1879	dREQ (REQ_DB_PUT, 2);
		1880	req->db = db;
		1881	req->txn = txn;
		1882	sv_to_dbt (&req->dbt1, key);
		1883	sv_to_dbt (&req->dbt2, data);
		1884	req->uint1 = flags;
		1885	REQ_SEND;
		1886	}
		1887
		1888	#if DBVER >= 406
		1889
		1890	void
		1891	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1892	PREINIT:
		1893	CALLBACK
		1894	CODE:
		1895	{
		1896	dREQ (REQ_DB_EXISTS, 2);
		1897	req->db = db;
		1898	req->txn = txn;
		1899	req->uint1 = flags;
		1900	sv_to_dbt (&req->dbt1, key);
		1901	REQ_SEND;
		1902	}
		1903
		1904	#endif
		1905
		1906	void
		1907	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1908	PREINIT:
		1909	CALLBACK
		1910	CODE:
		1911	{
		1912	//TODO: key is somtimesmutable
		1913	dREQ (REQ_DB_GET, 2);
		1914	req->db = db;
		1915	req->txn = txn;
		1916	req->uint1 = flags;
		1917	sv_to_dbt (&req->dbt1, key);
		1918	req->dbt3.flags = DB_DBT_MALLOC;
		1919	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1920	REQ_SEND;
		1921	}
		1922
		1923	void
		1924	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1925	PREINIT:
		1926	CALLBACK
		1927	CODE:
		1928	{
		1929	//TODO: key is somtimesmutable
		1930	dREQ (REQ_DB_PGET, 2);
		1931	req->db = db;
		1932	req->txn = txn;
		1933	req->uint1 = flags;
		1934
		1935	sv_to_dbt (&req->dbt1, key);
		1936
		1937	req->dbt2.flags = DB_DBT_MALLOC;
		1938	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1939
		1940	req->dbt3.flags = DB_DBT_MALLOC;
		1941	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1942	REQ_SEND;
		1943	}
		1944
		1945	void
		1946	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1947	PREINIT:
		1948	CALLBACK
		1949	CODE:
		1950	{
		1951	dREQ (REQ_DB_DEL, 2);
		1952	req->db = db;
		1953	req->txn = txn;
		1954	req->uint1 = flags;
		1955	sv_to_dbt (&req->dbt1, key);
		1956	REQ_SEND;
		1957	}
		1958
		1959	void
		1960	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1961	PREINIT:
		1962	CALLBACK
		1963	CODE:
		1964	{
		1965	dREQ (REQ_TXN_COMMIT, 0);
		1966	ptr_nuke (ST (0));
		1967	req->txn = txn;
		1968	req->uint1 = flags;
		1969	REQ_SEND;
		1970	}
		1971
		1972	void
		1973	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1974	PREINIT:
		1975	CALLBACK
		1976	CODE:
		1977	{
		1978	dREQ (REQ_TXN_ABORT, 0);
		1979	ptr_nuke (ST (0));
		1980	req->txn = txn;
		1981	REQ_SEND;
		1982	}
		1983
		1984	void
		1985	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1986	PREINIT:
		1987	CALLBACK
		1988	CODE:
		1989	{
		1990	dREQ (REQ_TXN_FINISH, 0);
		1991	ptr_nuke (ST (0));
		1992	req->txn = txn;
		1993	req->uint1 = flags;
		1994	REQ_SEND;
		1995	}
		1996
		1997	void
		1998	db_c_close (DBC *dbc, SV *callback = 0)
		1999	PREINIT:
		2000	CALLBACK
		2001	CODE:
		2002	{
		2003	dREQ (REQ_C_CLOSE, 0);
		2004	ptr_nuke (ST (0));
		2005	req->dbc = dbc;
		2006	REQ_SEND;
		2007	}
		2008
		2009	void
		2010	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		2011	PREINIT:
		2012	CALLBACK
		2013	CODE:
		2014	{
		2015	dREQ (REQ_C_COUNT, 1);
		2016	req->dbc = dbc;
		2017	req->sv1 = SvREFCNT_inc (count);
		2018	REQ_SEND;
		2019	}
		2020
		2021	void
		2022	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		2023	PREINIT:
		2024	CALLBACK
		2025	CODE:
		2026	{
		2027	dREQ (REQ_C_PUT, 1);
		2028	req->dbc = dbc;
		2029	sv_to_dbt (&req->dbt1, key);
		2030	sv_to_dbt (&req->dbt2, data);
		2031	req->uint1 = flags;
		2032	REQ_SEND;
		2033	}
		2034
		2035	void
		2036	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2037	PREINIT:
		2038	CALLBACK
		2039	CODE:
		2040	{
		2041	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2042	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2043	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2044	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2045	"key",
		2046	"BDB::db_c_get");
		2047
		2048	{
		2049	dREQ (REQ_C_GET, 1);
		2050	req->dbc = dbc;
		2051	req->uint1 = flags;
		2052	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2053	sv_to_dbt (&req->dbt1, key);
		2054	else
		2055	{
		2056	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2057	sv_to_dbt (&req->dbt1, key);
		2058	else
		2059	req->dbt1.flags = DB_DBT_MALLOC;
		2060
		2061	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2062	}
		2063
		2064	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2065	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2066	sv_to_dbt (&req->dbt3, data);
		2067	else
		2068	req->dbt3.flags = DB_DBT_MALLOC;
		2069
		2070	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2071	REQ_SEND;
		2072	}
		2073	}
		2074
		2075	void
		2076	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2077	PREINIT:
		2078	CALLBACK
		2079	CODE:
		2080	{
		2081	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2082	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2083	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2084	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2085	"key",
		2086	"BDB::db_c_pget");
		2087
		2088	{
		2089	dREQ (REQ_C_PGET, 1);
		2090	req->dbc = dbc;
		2091	req->uint1 = flags;
		2092	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2093	sv_to_dbt (&req->dbt1, key);
		2094	else
		2095	{
		2096	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2097	sv_to_dbt (&req->dbt1, key);
		2098	else
		2099	req->dbt1.flags = DB_DBT_MALLOC;
		2100
		2101	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2102	}
		2103
		2104	req->dbt2.flags = DB_DBT_MALLOC;
		2105	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2106
		2107	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2108	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2109	sv_to_dbt (&req->dbt3, data);
		2110	else
		2111	req->dbt3.flags = DB_DBT_MALLOC;
		2112
		2113	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2114	REQ_SEND;
		2115	}
		2116	}
		2117
		2118	void
		2119	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2120	PREINIT:
		2121	CALLBACK
		2122	CODE:
		2123	{
		2124	dREQ (REQ_C_DEL, 1);
		2125	req->dbc = dbc;
		2126	req->uint1 = flags;
		2127	REQ_SEND;
		2128	}
		2129
		2130
		2131	#if DBVER >= 403
		2132
		2133	void
		2134	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2135	PREINIT:
		2136	CALLBACK
		2137	CODE:
		2138	{
		2139	dREQ (REQ_SEQ_OPEN, 2);
		2140	req->seq = seq;
		2141	req->txn = txnid;
		2142	req->uint1 = flags | DB_THREAD;
		2143	sv_to_dbt (&req->dbt1, key);
		2144	REQ_SEND;
		2145	}
		2146
		2147	void
		2148	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2149	PREINIT:
		2150	CALLBACK
		2151	CODE:
		2152	{
		2153	dREQ (REQ_SEQ_CLOSE, 0);
		2154	ptr_nuke (ST (0));
		2155	req->seq = seq;
		2156	req->uint1 = flags;
		2157	REQ_SEND;
		2158	}
		2159
		2160	void
		2161	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2162	PREINIT:
		2163	CALLBACK
		2164	CODE:
		2165	{
		2166	dREQ (REQ_SEQ_GET, 2);
		2167	req->seq = seq;
		2168	req->txn = txnid;
		2169	req->int1 = delta;
		2170	req->uint1 = flags;
		2171	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2172	REQ_SEND;
		2173	}
		2174
		2175	void
		2176	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2177	PREINIT:
		2178	CALLBACK
		2179	CODE:
		2180	{
		2181	dREQ (REQ_SEQ_REMOVE, 2);
		2182	req->seq = seq;
		2183	req->txn = txnid;
		2184	req->uint1 = flags;
		2185	REQ_SEND;
		2186	}
		2187
		2188	#endif
		2189
1085		2190
1086	MODULE = BDB PACKAGE = BDB::Env	2191	MODULE = BDB PACKAGE = BDB::Env
1087		2192
		2193	void
		2194	DESTROY (DB_ENV_ornuked *env)
		2195	CODE:
		2196	if (env)
		2197	env->close (env, 0);
		2198
		2199	int set_data_dir (DB_ENV *env, const char *dir)
		2200	CODE:
		2201	RETVAL = env->set_data_dir (env, dir);
		2202	OUTPUT:
		2203	RETVAL
		2204
		2205	int set_tmp_dir (DB_ENV *env, const char *dir)
		2206	CODE:
		2207	RETVAL = env->set_tmp_dir (env, dir);
		2208	OUTPUT:
		2209	RETVAL
		2210
		2211	int set_lg_dir (DB_ENV *env, const char *dir)
		2212	CODE:
		2213	RETVAL = env->set_lg_dir (env, dir);
		2214	OUTPUT:
		2215	RETVAL
		2216
		2217	int set_shm_key (DB_ENV *env, long shm_key)
		2218	CODE:
		2219	RETVAL = env->set_shm_key (env, shm_key);
		2220	OUTPUT:
		2221	RETVAL
		2222
1088	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2223	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1089	CODE:	2224	CODE:
1090	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	2225	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1091	OUTPUT:	2226	OUTPUT:
1092	RETVAL	2227	RETVAL
1093		2228
1094	int set_flags (DB_ENV *env, U32 flags, int onoff)	2229	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1095	CODE:	2230	CODE:
1096	RETVAL = env->set_flags (env, flags, onoff);	2231	RETVAL = env->set_flags (env, flags, onoff);
1097	OUTPUT:	2232	OUTPUT:
1098	RETVAL	2233	RETVAL
1099		2234
		2235	#if DBVER >= 407
		2236
		2237	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2238	CODE:
		2239	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2240	OUTPUT:
		2241	RETVAL
		2242
		2243	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2244	CODE:
		2245	RETVAL = env->log_set_config (env, flags, onoff);
		2246	OUTPUT:
		2247	RETVAL
		2248
		2249	#endif
		2250
		2251
		2252	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2253	CODE:
		2254	env->set_errfile (env, errfile);
		2255
		2256	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2257	CODE:
		2258	env->set_msgfile (env, msgfile);
		2259
		2260	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2261	CODE:
		2262	RETVAL = env->set_verbose (env, which, onoff);
		2263	OUTPUT:
		2264	RETVAL
		2265
1100	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2266	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1101	CODE:	2267	CODE:
1102	RETVAL = env->set_encrypt (env, password, flags);	2268	RETVAL = env->set_encrypt (env, password, flags);
1103	OUTPUT:	2269	OUTPUT:
1104	RETVAL	2270	RETVAL
1105		2271
1106	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2272	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1107	CODE:	2273	CODE:
1108	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2274	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1109	OUTPUT:	2275	OUTPUT:
1110	RETVAL	2276	RETVAL
1111		2277
		2278	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2279	CODE:
		2280	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2281	OUTPUT:
		2282	RETVAL
		2283
		2284	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2285	CODE:
		2286	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2287	OUTPUT:
		2288	RETVAL
		2289
		2290	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2291	CODE:
		2292	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2293	OUTPUT:
		2294	RETVAL
		2295
		2296	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2297	CODE:
		2298	RETVAL = env->set_lk_detect (env, detect);
		2299	OUTPUT:
		2300	RETVAL
		2301
		2302	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2303	CODE:
		2304	RETVAL = env->set_lk_max_lockers (env, max);
		2305	OUTPUT:
		2306	RETVAL
		2307
		2308	int set_lk_max_locks (DB_ENV *env, U32 max)
		2309	CODE:
		2310	RETVAL = env->set_lk_max_locks (env, max);
		2311	OUTPUT:
		2312	RETVAL
		2313
		2314	int set_lk_max_objects (DB_ENV *env, U32 max)
		2315	CODE:
		2316	RETVAL = env->set_lk_max_objects (env, max);
		2317	OUTPUT:
		2318	RETVAL
		2319
		2320	int set_lg_bsize (DB_ENV *env, U32 max)
		2321	CODE:
		2322	RETVAL = env->set_lg_bsize (env, max);
		2323	OUTPUT:
		2324	RETVAL
		2325
		2326	int set_lg_max (DB_ENV *env, U32 max)
		2327	CODE:
		2328	RETVAL = env->set_lg_max (env, max);
		2329	OUTPUT:
		2330	RETVAL
		2331
		2332	#if DBVER >= 404
		2333
		2334	int mutex_set_max (DB_ENV *env, U32 max)
		2335	CODE:
		2336	RETVAL = env->mutex_set_max (env, max);
		2337	OUTPUT:
		2338	RETVAL
		2339
		2340	int mutex_set_increment (DB_ENV *env, U32 increment)
		2341	CODE:
		2342	RETVAL = env->mutex_set_increment (env, increment);
		2343	OUTPUT:
		2344	RETVAL
		2345
		2346	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2347	CODE:
		2348	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2349	OUTPUT:
		2350	RETVAL
		2351
		2352	int mutex_set_align (DB_ENV *env, U32 align)
		2353	CODE:
		2354	RETVAL = env->mutex_set_align (env, align);
		2355	OUTPUT:
		2356	RETVAL
		2357
		2358	#endif
		2359
		2360	DB_TXN *
		2361	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2362	CODE:
		2363	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2364	if (errno)
		2365	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2366	OUTPUT:
		2367	RETVAL
		2368
		2369	#if DBVER >= 405
		2370
		2371	DB_TXN *
		2372	cdsgroup_begin (DB_ENV *env)
		2373	CODE:
		2374	errno = env->cdsgroup_begin (env, &RETVAL);
		2375	if (errno)
		2376	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	#endif
1112		2381
1113	MODULE = BDB PACKAGE = BDB::Db	2382	MODULE = BDB PACKAGE = BDB::Db
1114		2383
		2384	void
		2385	DESTROY (DB_ornuked *db)
		2386	CODE:
		2387	if (db)
		2388	{
		2389	SV *env = (SV *)db->app_private;
		2390	db->close (db, 0);
		2391	SvREFCNT_dec (env);
		2392	}
		2393
1115	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2394	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1116	CODE:	2395	CODE:
1117	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2396	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1118	OUTPUT:	2397	OUTPUT:
1119	RETVAL	2398	RETVAL
1120		2399
		2400	int set_pagesize (DB *db, U32 pagesize)
		2401	CODE:
		2402	RETVAL = db->set_pagesize (db, pagesize);
		2403	OUTPUT:
		2404	RETVAL
		2405
1121	int set_flags (DB *db, U32 flags);	2406	int set_flags (DB *db, U32 flags)
1122	CODE:	2407	CODE:
1123	RETVAL = db->set_flags (db, flags);	2408	RETVAL = db->set_flags (db, flags);
1124	OUTPUT:	2409	OUTPUT:
1125	RETVAL	2410	RETVAL
1126		2411
…		…
1134	CODE:	2419	CODE:
1135	RETVAL = db->set_lorder (db, lorder);	2420	RETVAL = db->set_lorder (db, lorder);
1136	OUTPUT:	2421	OUTPUT:
1137	RETVAL	2422	RETVAL
1138		2423
1139
1140	int set_bt_minkey (DB *db, U32 minkey)	2424	int set_bt_minkey (DB *db, U32 minkey)
1141	CODE:	2425	CODE:
1142	RETVAL = db->set_bt_minkey (db, minkey);	2426	RETVAL = db->set_bt_minkey (db, minkey);
1143	OUTPUT:	2427	OUTPUT:
1144	RETVAL	2428	RETVAL
1145		2429
1146	int set_re_delim(DB *db, int delim);	2430	int set_re_delim (DB *db, int delim)
1147	CODE:	2431	CODE:
1148	RETVAL = db->set_re_delim (db, delim);	2432	RETVAL = db->set_re_delim (db, delim);
1149	OUTPUT:	2433	OUTPUT:
1150	RETVAL	2434	RETVAL
1151		2435
…		…
1183	CODE:	2467	CODE:
1184	RETVAL = db->set_q_extentsize (db, extentsize);	2468	RETVAL = db->set_q_extentsize (db, extentsize);
1185	OUTPUT:	2469	OUTPUT:
1186	RETVAL	2470	RETVAL
1187		2471
		2472	DBC *
		2473	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2474	CODE:
		2475	errno = db->cursor (db, txn, &RETVAL, flags);
		2476	if (errno)
		2477	croak ("DB->cursor: %s", db_strerror (errno));
		2478	OUTPUT:
		2479	RETVAL
1188		2480
		2481	#if DBVER >= 403
		2482
		2483	DB_SEQUENCE *
		2484	sequence (DB *db, U32 flags = 0)
		2485	CODE:
		2486	{
		2487	errno = db_sequence_create (&RETVAL, db, flags);
		2488	if (errno)
		2489	croak ("db_sequence_create: %s", db_strerror (errno));
		2490	}
		2491	OUTPUT:
		2492	RETVAL
		2493
		2494	#endif
		2495
		2496
		2497	MODULE = BDB PACKAGE = BDB::Txn
		2498
		2499	void
		2500	DESTROY (DB_TXN_ornuked *txn)
		2501	CODE:
		2502	if (txn)
		2503	txn->abort (txn);
		2504
		2505	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2506	CODE:
		2507	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2508	OUTPUT:
		2509	RETVAL
		2510
		2511	int failed (DB_TXN *txn)
		2512	CODE:
		2513	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2514	OUTPUT:
		2515	RETVAL
		2516
		2517
		2518	MODULE = BDB PACKAGE = BDB::Cursor
		2519
		2520	void
		2521	DESTROY (DBC_ornuked *dbc)
		2522	CODE:
		2523	if (dbc)
		2524	dbc->c_close (dbc);
		2525
		2526	#if DBVER >= 406
		2527
		2528	int set_priority (DBC *dbc, int priority)
		2529	CODE:
		2530	dbc->set_priority (dbc, priority);
		2531
		2532	#endif
		2533
		2534	#if DBVER >= 403
		2535
		2536	MODULE = BDB PACKAGE = BDB::Sequence
		2537
		2538	void
		2539	DESTROY (DB_SEQUENCE_ornuked *seq)
		2540	CODE:
		2541	if (seq)
		2542	seq->close (seq, 0);
		2543
		2544	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2545	CODE:
		2546	RETVAL = seq->initial_value (seq, value);
		2547	OUTPUT:
		2548	RETVAL
		2549
		2550	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2551	CODE:
		2552	RETVAL = seq->set_cachesize (seq, size);
		2553	OUTPUT:
		2554	RETVAL
		2555
		2556	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2557	CODE:
		2558	RETVAL = seq->set_flags (seq, flags);
		2559	OUTPUT:
		2560	RETVAL
		2561
		2562	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2563	CODE:
		2564	RETVAL = seq->set_range (seq, min, max);
		2565	OUTPUT:
		2566	RETVAL
		2567
		2568	#endif
		2569
		2570

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