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Comparing BDB/BDB.xs (file contents):
Revision 1.3 by root, Mon Feb 5 22:19:07 2007 UTC vs.
Revision 1.59 by root, Mon Oct 20 02:31:51 2008 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	// perl stupidly defines these as macros, breaking
		12	// lots and lots of code.
		13	#undef open
		14	#undef close
		15	#undef abort
		16	#undef malloc
		17	#undef free
		18	#undef send
18		19
19	#include <stddef.h>	20	#include <stddef.h>
20	#include <stdlib.h>	21	#include <stdlib.h>
21	#include <errno.h>	22	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	23	#include <sys/types.h>
24	#include <limits.h>	24	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	25	#include <fcntl.h>
27		26
		27	#ifndef _WIN32
		28	# include <sys/time.h>
		29	# include <unistd.h>
		30	#endif
		31
28	#include <db.h>	32	#include <db.h>
		33
		34	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		35	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		36	#endif
29		37
30	/* number of seconds after which idle threads exit */	38	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	39	#define IDLE_TIMEOUT 10
32		40
33	/* wether word reads are potentially non-atomic.	41	typedef SV SV_mutable;
34	* this is conservatice, likely most arches this runs	42
35	* on have atomic word read/writes.	43	typedef DB_ENV DB_ENV_ornull;
36	*/	44	typedef DB_TXN DB_TXN_ornull;
37	#ifndef WORDACCESS_UNSAFE	45	typedef DBC DBC_ornull;
38	# if __i386 || __x86_64	46	typedef DB DB_ornull;
39	# define WORDACCESS_UNSAFE 0	47
40	# else	48	typedef DB_ENV DB_ENV_ornuked;
41	# define WORDACCESS_UNSAFE 1	49	typedef DB_TXN DB_TXN_ornuked;
		50	typedef DBC DBC_ornuked;
		51	typedef DB DB_ornuked;
		52
		53	#if DB_VERSION_MINOR >= 3
		54	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		55	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
42	# endif	56	#endif
43	#endif
44		57
45	typedef SV SV8; /* byte-sv, used for argument-checking */	58	typedef char *bdb_filename;
46	typedef char *octetstring;
47		59
48	static SV *prepare_cb;	60	static SV *prepare_cb;
49		61
		62	#if DB_VERSION_MINOR >= 6
		63	# define c_close close
		64	# define c_count count
		65	# define c_del del
		66	# define c_dup dup
		67	# define c_get get
		68	# define c_pget pget
		69	# define c_put put
		70	#endif
		71
50	static inline char *	72	static char *
		73	get_bdb_filename (SV *sv)
		74	{
		75	if (!SvOK (sv))
		76	return 0;
		77
		78	#if _WIN32
		79	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		80	{
		81	STRLEN len;
		82	char *src = SvPVbyte (sv, len);
		83	SV *t1 = sv_newmortal ();
		84	SV *t2 = sv_newmortal ();
		85
		86	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		87	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		88
		89	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		90	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		91	SvPOK_only (t2);
		92	SvPVX (t2)[len] = 0;
		93	SvCUR_set (t2, len);
		94
		95	return SvPVX (t2);
		96	}
		97	#else
		98	return SvPVbyte_nolen (sv);
		99	#endif
		100	}
		101
		102	static void
		103	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		104	{
		105	printf ("err[%s]\n", msg);
		106	}
		107
		108	static void
		109	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		110	{
		111	printf ("msg[%s]\n", msg);
		112	}
		113
		114	static char *
51	strdup_ornull (const char *s)	115	strdup_ornull (const char *s)
52	{	116	{
53	return s ? strdup (s) : 0;	117	return s ? strdup (s) : 0;
54	}	118	}
55		119
		120	static void
		121	sv_to_dbt (DBT *dbt, SV *sv)
		122	{
		123	STRLEN len;
		124	char *data = SvPVbyte (sv, len);
		125
		126	dbt->data = malloc (len);
		127	memcpy (dbt->data, data, len);
		128	dbt->size = len;
		129	dbt->flags = DB_DBT_REALLOC;
		130	}
		131
		132	static void
		133	dbt_to_sv (SV *sv, DBT *dbt)
		134	{
		135	if (sv)
		136	{
		137	SvREADONLY_off (sv);
		138
		139	if (dbt->data)
		140	sv_setpvn_mg (sv, dbt->data, dbt->size);
		141	else
		142	sv_setsv_mg (sv, &PL_sv_undef);
		143
		144	SvREFCNT_dec (sv);
		145	}
		146
		147	free (dbt->data);
		148	}
		149
56	enum {	150	enum {
57	REQ_QUIT,	151	REQ_QUIT,
58	REQ_ENV_OPEN, REQ_ENV_CLOSE,	152	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		153	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
59	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT,	154	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		155	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		156	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		157	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		158	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
60	};	159	};
61		160
62	typedef struct aio_cb	161	typedef struct bdb_cb
63	{	162	{
64	struct aio_cb *volatile next;	163	struct bdb_cb *volatile next;
65	SV *callback;	164	SV *callback;
66	int type, pri, result;	165	int type, pri, result;
67		166
68	DB_ENV *env;	167	DB_ENV *env;
69	DB *db;	168	DB *db;
70	DB_TXN *txn;	169	DB_TXN *txn;
71	DBC *cursor;	170	DBC *dbc;
		171
		172	UV uv1;
72	int int1, int2;	173	int int1, int2;
73	U32 uint1, uint2;	174	U32 uint1, uint2;
74	char *buf1, *buf2;	175	char *buf1, *buf2, *buf3;
		176	SV *sv1, *sv2, *sv3;
75		177
76	DBT dbt1, dbt2, dbt3;	178	DBT dbt1, dbt2, dbt3;
77	} aio_cb;	179	DB_KEY_RANGE key_range;
		180	#if DB_VERSION_MINOR >= 3
		181	DB_SEQUENCE *seq;
		182	db_seq_t seq_t;
		183	#endif
78		184
		185	SV *rsv1, *rsv2; // keep some request objects alive
		186	} bdb_cb;
		187
79	typedef aio_cb *aio_req;	188	typedef bdb_cb *bdb_req;
80		189
81	enum {	190	enum {
82	PRI_MIN = -4,	191	PRI_MIN = -4,
83	PRI_MAX = 4,	192	PRI_MAX = 4,
84		193
…		…
87	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	196	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
88	};	197	};
89		198
90	#define AIO_TICKS ((1000000 + 1023) >> 10)	199	#define AIO_TICKS ((1000000 + 1023) >> 10)
91		200
		201	static SV *on_next_submit;
		202
92	static unsigned int max_poll_time = 0;	203	static unsigned int max_poll_time = 0;
93	static unsigned int max_poll_reqs = 0;	204	static unsigned int max_poll_reqs = 0;
94		205
95	/* calculcate time difference in ~1/AIO_TICKS of a second */	206	/* calculcate time difference in ~1/AIO_TICKS of a second */
96	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	207	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
101		212
102	static int next_pri = DEFAULT_PRI + PRI_BIAS;	213	static int next_pri = DEFAULT_PRI + PRI_BIAS;
103		214
104	static unsigned int started, idle, wanted;	215	static unsigned int started, idle, wanted;
105		216
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 */	217	/* worker threads management */
116	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	218	static mutex_t wrklock = X_MUTEX_INIT;
117		219
118	typedef struct worker {	220	typedef struct worker {
119	/* locked by wrklock */	221	/* locked by wrklock */
120	struct worker *prev, *next;	222	struct worker *prev, *next;
121		223
122	pthread_t tid;	224	thread_t tid;
123		225
124	/* locked by reslock, reqlock or wrklock */	226	/* locked by reslock, reqlock or wrklock */
125	aio_req req; /* currently processed request */	227	bdb_req req; /* currently processed request */
126	void *dbuf;	228	void *dbuf;
127	DIR *dirp;	229	DIR *dirp;
128	} worker;	230	} worker;
129		231
130	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	232	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
142	}	244	}
143		245
144	static volatile unsigned int nreqs, nready, npending;	246	static volatile unsigned int nreqs, nready, npending;
145	static volatile unsigned int max_idle = 4;	247	static volatile unsigned int max_idle = 4;
146	static volatile unsigned int max_outstanding = 0xffffffff;	248	static volatile unsigned int max_outstanding = 0xffffffff;
147	static int respipe [2];	249	static int respipe_osf [2], respipe [2] = { -1, -1 };
148		250
149	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	251	static mutex_t reslock = X_MUTEX_INIT;
150	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	252	static mutex_t reqlock = X_MUTEX_INIT;
151	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	253	static cond_t reqwait = X_COND_INIT;
152		254
153	#if WORDACCESS_UNSAFE	255	#if WORDACCESS_UNSAFE
154		256
155	static unsigned int get_nready ()	257	static unsigned int get_nready (void)
156	{	258	{
157	unsigned int retval;	259	unsigned int retval;
158		260
159	LOCK (reqlock);	261	X_LOCK (reqlock);
160	retval = nready;	262	retval = nready;
161	UNLOCK (reqlock);	263	X_UNLOCK (reqlock);
162		264
163	return retval;	265	return retval;
164	}	266	}
165		267
166	static unsigned int get_npending ()	268	static unsigned int get_npending (void)
167	{	269	{
168	unsigned int retval;	270	unsigned int retval;
169		271
170	LOCK (reslock);	272	X_LOCK (reslock);
171	retval = npending;	273	retval = npending;
172	UNLOCK (reslock);	274	X_UNLOCK (reslock);
173		275
174	return retval;	276	return retval;
175	}	277	}
176		278
177	static unsigned int get_nthreads ()	279	static unsigned int get_nthreads (void)
178	{	280	{
179	unsigned int retval;	281	unsigned int retval;
180		282
181	LOCK (wrklock);	283	X_LOCK (wrklock);
182	retval = started;	284	retval = started;
183	UNLOCK (wrklock);	285	X_UNLOCK (wrklock);
184		286
185	return retval;	287	return retval;
186	}	288	}
187		289
188	#else	290	#else
…		…
197	* a somewhat faster data structure might be nice, but	299	* a somewhat faster data structure might be nice, but
198	* with 8 priorities this actually needs <20 insns	300	* with 8 priorities this actually needs <20 insns
199	* per shift, the most expensive operation.	301	* per shift, the most expensive operation.
200	*/	302	*/
201	typedef struct {	303	typedef struct {
202	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	304	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
203	int size;	305	int size;
204	} reqq;	306	} reqq;
205		307
206	static reqq req_queue;	308	static reqq req_queue;
207	static reqq res_queue;	309	static reqq res_queue;
208		310
209	int reqq_push (reqq *q, aio_req req)	311	int reqq_push (reqq *q, bdb_req req)
210	{	312	{
211	int pri = req->pri;	313	int pri = req->pri;
212	req->next = 0;	314	req->next = 0;
213		315
214	if (q->qe[pri])	316	if (q->qe[pri])
…		…
220	q->qe[pri] = q->qs[pri] = req;	322	q->qe[pri] = q->qs[pri] = req;
221		323
222	return q->size++;	324	return q->size++;
223	}	325	}
224		326
225	aio_req reqq_shift (reqq *q)	327	bdb_req reqq_shift (reqq *q)
226	{	328	{
227	int pri;	329	int pri;
228		330
229	if (!q->size)	331	if (!q->size)
230	return 0;	332	return 0;
231		333
232	--q->size;	334	--q->size;
233		335
234	for (pri = NUM_PRI; pri--; )	336	for (pri = NUM_PRI; pri--; )
235	{	337	{
236	aio_req req = q->qs[pri];	338	bdb_req req = q->qs[pri];
237		339
238	if (req)	340	if (req)
239	{	341	{
240	if (!(q->qs[pri] = req->next))	342	if (!(q->qs[pri] = req->next))
241	q->qe[pri] = 0;	343	q->qe[pri] = 0;
…		…
245	}	347	}
246		348
247	abort ();	349	abort ();
248	}	350	}
249		351
250	static int poll_cb ();	352	static int poll_cb (void);
251	static void req_free (aio_req req);	353	static void req_free (bdb_req req);
252	static void req_cancel (aio_req req);
253		354
254	static int req_invoke (aio_req req)	355	static int req_invoke (bdb_req req)
255	{	356	{
256	dSP;	357	switch (req->type)
257
258	if (SvOK (req->callback))
259	{	358	{
		359	case REQ_DB_CLOSE:
		360	SvREFCNT_dec (req->sv1);
		361	break;
		362
		363	case REQ_DB_GET:
		364	case REQ_DB_PGET:
		365	case REQ_C_GET:
		366	case REQ_C_PGET:
		367	case REQ_DB_PUT:
		368	case REQ_C_PUT:
		369	dbt_to_sv (req->sv1, &req->dbt1);
		370	dbt_to_sv (req->sv2, &req->dbt2);
		371	dbt_to_sv (req->sv3, &req->dbt3);
		372	break;
		373
		374	case REQ_DB_KEY_RANGE:
		375	{
		376	AV *av = newAV ();
		377
		378	av_push (av, newSVnv (req->key_range.less));
		379	av_push (av, newSVnv (req->key_range.equal));
		380	av_push (av, newSVnv (req->key_range.greater));
		381
		382	SvREADONLY_off (req->sv1);
		383	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		384	SvREFCNT_dec (req->sv1);
		385	}
		386	break;
		387
		388	#if DB_VERSION_MINOR >= 3
		389	case REQ_SEQ_GET:
		390	SvREADONLY_off (req->sv1);
		391
		392	if (sizeof (IV) > 4)
		393	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		394	else
		395	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		396
		397	SvREFCNT_dec (req->sv1);
		398	break;
		399	#endif
		400	}
		401
		402	errno = req->result;
		403
		404	if (req->callback)
		405	{
		406	dSP;
		407
260	ENTER;	408	ENTER;
261	SAVETMPS;	409	SAVETMPS;
262	PUSHMARK (SP);	410	PUSHMARK (SP);
263	EXTEND (SP, 1);
264
265	switch (req->type)
266	{
267	}
268
269	errno = req->result;
270		411
271	PUTBACK;	412	PUTBACK;
272	call_sv (req->callback, G_VOID | G_EVAL);	413	call_sv (req->callback, G_VOID | G_EVAL);
273	SPAGAIN;	414	SPAGAIN;
274		415
275	FREETMPS;	416	FREETMPS;
276	LEAVE;	417	LEAVE;
		418
		419	return !SvTRUE (ERRSV);
277	}	420	}
278		421
279	return !SvTRUE (ERRSV);	422	return 1;
280	}	423	}
281		424
282	static void req_free (aio_req req)	425	static void req_free (bdb_req req)
283	{	426	{
		427	SvREFCNT_dec (req->callback);
		428
		429	SvREFCNT_dec (req->rsv1);
		430	SvREFCNT_dec (req->rsv2);
		431
284	free (req->buf1);	432	free (req->buf1);
285	free (req->buf2);	433	free (req->buf2);
		434	free (req->buf3);
		435
286	Safefree (req);	436	Safefree (req);
287	}	437	}
288		438
289	static void *aio_proc (void *arg);	439	#ifdef USE_SOCKETS_AS_HANDLES
		440	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		441	#else
		442	# define TO_SOCKET(x) (x)
		443	#endif
		444
		445	static void
		446	create_respipe (void)
		447	{
		448	#ifdef _WIN32
		449	int arg; /* argg */
		450	#endif
		451	int old_readfd = respipe [0];
		452
		453	if (respipe [1] >= 0)
		454	respipe_close (TO_SOCKET (respipe [1]));
		455
		456	#ifdef _WIN32
		457	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		458	#else
		459	if (pipe (respipe))
		460	#endif
		461	croak ("unable to initialize result pipe");
		462
		463	if (old_readfd >= 0)
		464	{
		465	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		466	croak ("unable to initialize result pipe(2)");
		467
		468	respipe_close (respipe [0]);
		469	respipe [0] = old_readfd;
		470	}
		471
		472	#ifdef _WIN32
		473	arg = 1;
		474	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		475	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		476	#else
		477	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		478	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		479	#endif
		480	croak ("unable to initialize result pipe(3)");
		481
		482	respipe_osf [0] = TO_SOCKET (respipe [0]);
		483	respipe_osf [1] = TO_SOCKET (respipe [1]);
		484	}
		485
		486	static void bdb_request (bdb_req req);
		487	X_THREAD_PROC (bdb_proc);
290		488
291	static void start_thread (void)	489	static void start_thread (void)
292	{	490	{
293	sigset_t fullsigset, oldsigset;
294	pthread_attr_t attr;
295
296	worker *wrk = calloc (1, sizeof (worker));	491	worker *wrk = calloc (1, sizeof (worker));
297		492
298	if (!wrk)	493	if (!wrk)
299	croak ("unable to allocate worker thread data");	494	croak ("unable to allocate worker thread data");
300		495
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);	496	X_LOCK (wrklock);
310	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
311
312	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	497	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
313	{	498	{
314	wrk->prev = &wrk_first;	499	wrk->prev = &wrk_first;
315	wrk->next = wrk_first.next;	500	wrk->next = wrk_first.next;
316	wrk_first.next->prev = wrk;	501	wrk_first.next->prev = wrk;
317	wrk_first.next = wrk;	502	wrk_first.next = wrk;
318	++started;	503	++started;
319	}	504	}
320	else	505	else
321	free (wrk);	506	free (wrk);
322		507
323	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
324	UNLOCK (wrklock);	508	X_UNLOCK (wrklock);
325	}	509	}
326		510
327	static void maybe_start_thread ()	511	static void maybe_start_thread (void)
328	{	512	{
329	if (get_nthreads () >= wanted)	513	if (get_nthreads () >= wanted)
330	return;	514	return;
331		515
332	/* todo: maybe use idle here, but might be less exact */	516	/* todo: maybe use idle here, but might be less exact */
…		…
334	return;	518	return;
335		519
336	start_thread ();	520	start_thread ();
337	}	521	}
338		522
339	static void req_send (aio_req req)	523	static void req_send (bdb_req req)
340	{	524	{
341	SV *wait_callback = 0;	525	SV *wait_callback = 0;
342		526
343	// synthesize callback if none given	527	if (on_next_submit)
344	if (!SvOK (req->callback))
345	{	528	{
346	dSP;	529	dSP;
		530	SV *cb = sv_2mortal (on_next_submit);
		531
		532	on_next_submit = 0;
		533
347	PUSHMARK (SP);	534	PUSHMARK (SP);
348	PUTBACK;	535	PUTBACK;
349	int count = call_sv (prepare_cb, G_ARRAY);	536	call_sv (cb, G_DISCARD | G_EVAL);
350	SPAGAIN;	537	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	}	538	}
359		539
		540	// synthesize callback if none given
		541	if (!req->callback)
		542	{
		543	if (SvOK (prepare_cb))
		544	{
		545	int count;
		546
		547	dSP;
		548	PUSHMARK (SP);
		549	PUTBACK;
		550	count = call_sv (prepare_cb, G_ARRAY);
		551	SPAGAIN;
		552
		553	if (count != 2)
		554	croak ("sync prepare callback must return exactly two values\n");
		555
		556	wait_callback = POPs;
		557	req->callback = SvREFCNT_inc (POPs);
		558	}
		559	else
		560	{
		561	// execute request synchronously
		562	bdb_request (req);
		563	req_invoke (req);
		564	req_free (req);
		565	return;
		566	}
		567	}
		568
360	++nreqs;	569	++nreqs;
361		570
362	LOCK (reqlock);	571	X_LOCK (reqlock);
363	++nready;	572	++nready;
364	reqq_push (&req_queue, req);	573	reqq_push (&req_queue, req);
365	pthread_cond_signal (&reqwait);	574	X_COND_SIGNAL (reqwait);
366	UNLOCK (reqlock);	575	X_UNLOCK (reqlock);
367		576
368	maybe_start_thread ();	577	maybe_start_thread ();
369		578
370	if (wait_callback)	579	if (wait_callback)
371	{	580	{
372	dSP;	581	dSP;
373	PUSHMARK (SP);	582	PUSHMARK (SP);
374	PUTBACK;	583	PUTBACK;
375	call_sv (wait_callback, G_DISCARD);	584	call_sv (wait_callback, G_DISCARD);
376	SvREFCNT_dec (wait_callback);
377	}	585	}
378	}	586	}
379		587
380	static void end_thread (void)	588	static void end_thread (void)
381	{	589	{
382	aio_req req;	590	bdb_req req = calloc (1, sizeof (bdb_cb));
383
384	Newz (0, req, 1, aio_cb);
385		591
386	req->type = REQ_QUIT;	592	req->type = REQ_QUIT;
387	req->pri = PRI_MAX + PRI_BIAS;	593	req->pri = PRI_MAX + PRI_BIAS;
388		594
389	LOCK (reqlock);	595	X_LOCK (reqlock);
390	reqq_push (&req_queue, req);	596	reqq_push (&req_queue, req);
391	pthread_cond_signal (&reqwait);	597	X_COND_SIGNAL (reqwait);
392	UNLOCK (reqlock);	598	X_UNLOCK (reqlock);
393		599
394	LOCK (wrklock);	600	X_LOCK (wrklock);
395	--started;	601	--started;
396	UNLOCK (wrklock);	602	X_UNLOCK (wrklock);
397	}	603	}
398		604
399	static void set_max_idle (int nthreads)	605	static void set_max_idle (int nthreads)
400	{	606	{
401	if (WORDACCESS_UNSAFE) LOCK (reqlock);	607	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
402	max_idle = nthreads <= 0 ? 1 : nthreads;	608	max_idle = nthreads <= 0 ? 1 : nthreads;
403	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	609	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
404	}	610	}
405		611
406	static void min_parallel (int nthreads)	612	static void min_parallel (int nthreads)
407	{	613	{
408	if (wanted < nthreads)	614	if (wanted < nthreads)
…		…
416		622
417	while (started > wanted)	623	while (started > wanted)
418	end_thread ();	624	end_thread ();
419	}	625	}
420		626
421	static void poll_wait ()	627	static void poll_wait (void)
422	{	628	{
423	fd_set rfd;	629	fd_set rfd;
424		630
425	while (nreqs)	631	while (nreqs)
426	{	632	{
427	int size;	633	int size;
428	if (WORDACCESS_UNSAFE) LOCK (reslock);	634	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
429	size = res_queue.size;	635	size = res_queue.size;
430	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	636	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
431		637
432	if (size)	638	if (size)
433	return;	639	return;
434		640
435	maybe_start_thread ();	641	maybe_start_thread ();
436		642
437	FD_ZERO(&rfd);	643	FD_ZERO (&rfd);
438	FD_SET(respipe [0], &rfd);	644	FD_SET (respipe [0], &rfd);
439		645
440	select (respipe [0] + 1, &rfd, 0, 0, 0);	646	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
441	}	647	}
442	}	648	}
443		649
444	static int poll_cb ()	650	static int poll_cb (void)
445	{	651	{
446	dSP;	652	dSP;
447	int count = 0;	653	int count = 0;
448	int maxreqs = max_poll_reqs;	654	int maxreqs = max_poll_reqs;
449	int do_croak = 0;	655	int do_croak = 0;
450	struct timeval tv_start, tv_now;	656	struct timeval tv_start, tv_now;
451	aio_req req;	657	bdb_req req;
452		658
453	if (max_poll_time)	659	if (max_poll_time)
454	gettimeofday (&tv_start, 0);	660	gettimeofday (&tv_start, 0);
455		661
456	for (;;)	662	for (;;)
457	{	663	{
458	for (;;)	664	for (;;)
459	{	665	{
460	maybe_start_thread ();	666	maybe_start_thread ();
461		667
462	LOCK (reslock);	668	X_LOCK (reslock);
463	req = reqq_shift (&res_queue);	669	req = reqq_shift (&res_queue);
464		670
465	if (req)	671	if (req)
466	{	672	{
467	--npending;	673	--npending;
468		674
469	if (!res_queue.size)	675	if (!res_queue.size)
470	{	676	{
471	/* read any signals sent by the worker threads */	677	/* read any signals sent by the worker threads */
472	char buf [4];	678	char buf [4];
473	while (read (respipe [0], buf, 4) == 4)	679	while (respipe_read (respipe [0], buf, 4) == 4)
474	;	680	;
475	}	681	}
476	}	682	}
477		683
478	UNLOCK (reslock);	684	X_UNLOCK (reslock);
479		685
480	if (!req)	686	if (!req)
481	break;	687	break;
482		688
483	--nreqs;	689	--nreqs;
…		…
513	}	719	}
514		720
515	return count;	721	return count;
516	}	722	}
517		723
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	/*****************************************************************************/	724	/*****************************************************************************/
531		725
532	static void *aio_proc (void *thr_arg)	726	static void
		727	bdb_request (bdb_req req)
533	{	728	{
		729	switch (req->type)
		730	{
		731	case REQ_ENV_OPEN:
		732	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		733	break;
		734
		735	case REQ_ENV_CLOSE:
		736	req->result = req->env->close (req->env, req->uint1);
		737	break;
		738
		739	case REQ_ENV_TXN_CHECKPOINT:
		740	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		741	break;
		742
		743	case REQ_ENV_LOCK_DETECT:
		744	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		745	break;
		746
		747	case REQ_ENV_MEMP_SYNC:
		748	req->result = req->env->memp_sync (req->env, 0);
		749	break;
		750
		751	case REQ_ENV_MEMP_TRICKLE:
		752	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		753	break;
		754
		755	case REQ_ENV_DBREMOVE:
		756	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		757	break;
		758
		759	case REQ_ENV_DBRENAME:
		760	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		761	break;
		762
		763	case REQ_DB_OPEN:
		764	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		765	break;
		766
		767	case REQ_DB_CLOSE:
		768	req->result = req->db->close (req->db, req->uint1);
		769	break;
		770
		771	#if DB_VERSION_MINOR >= 4
		772	case REQ_DB_COMPACT:
		773	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		774	break;
		775	#endif
		776
		777	case REQ_DB_SYNC:
		778	req->result = req->db->sync (req->db, req->uint1);
		779	break;
		780
		781	case REQ_DB_UPGRADE:
		782	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		783	break;
		784
		785	case REQ_DB_PUT:
		786	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		787	break;
		788
		789	#if DB_VERSION_MINOR >= 6
		790	case REQ_DB_EXISTS:
		791	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		792	break;
		793	#endif
		794	case REQ_DB_GET:
		795	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		796	break;
		797
		798	case REQ_DB_PGET:
		799	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		800	break;
		801
		802	case REQ_DB_DEL:
		803	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		804	break;
		805
		806	case REQ_DB_KEY_RANGE:
		807	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		808	break;
		809
		810	case REQ_TXN_COMMIT:
		811	req->result = req->txn->commit (req->txn, req->uint1);
		812	break;
		813
		814	case REQ_TXN_ABORT:
		815	req->result = req->txn->abort (req->txn);
		816	break;
		817
		818	case REQ_TXN_FINISH:
		819	if (req->txn->flags & TXN_DEADLOCK)
		820	{
		821	req->result = req->txn->abort (req->txn);
		822	if (!req->result)
		823	req->result = DB_LOCK_DEADLOCK;
		824	}
		825	else
		826	req->result = req->txn->commit (req->txn, req->uint1);
		827	break;
		828
		829	case REQ_C_CLOSE:
		830	req->result = req->dbc->c_close (req->dbc);
		831	break;
		832
		833	case REQ_C_COUNT:
		834	{
		835	db_recno_t recno;
		836	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		837	req->uv1 = recno;
		838	}
		839	break;
		840
		841	case REQ_C_PUT:
		842	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		843	break;
		844
		845	case REQ_C_GET:
		846	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		847	break;
		848
		849	case REQ_C_PGET:
		850	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		851	break;
		852
		853	case REQ_C_DEL:
		854	req->result = req->dbc->c_del (req->dbc, req->uint1);
		855	break;
		856
		857	#if DB_VERSION_MINOR >= 3
		858	case REQ_SEQ_OPEN:
		859	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		860	break;
		861
		862	case REQ_SEQ_CLOSE:
		863	req->result = req->seq->close (req->seq, req->uint1);
		864	break;
		865
		866	case REQ_SEQ_GET:
		867	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		868	break;
		869
		870	case REQ_SEQ_REMOVE:
		871	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		872	break;
		873	#endif
		874
		875	default:
		876	req->result = ENOSYS;
		877	break;
		878	}
		879
		880	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		881	req->txn->flags |= TXN_DEADLOCK;
		882	}
		883
		884	X_THREAD_PROC (bdb_proc)
		885	{
534	aio_req req;	886	bdb_req req;
535	struct timespec ts;	887	struct timespec ts;
536	worker *self = (worker *)thr_arg;	888	worker *self = (worker *)thr_arg;
537		889
538	/* try to distribute timeouts somewhat evenly */	890	/* try to distribute timeouts somewhat evenly */
539	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	891	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
540	* (1000000000UL / 1024UL);
541		892
542	for (;;)	893	for (;;)
543	{	894	{
544	ts.tv_sec = time (0) + IDLE_TIMEOUT;	895	ts.tv_sec = time (0) + IDLE_TIMEOUT;
545		896
546	LOCK (reqlock);	897	X_LOCK (reqlock);
547		898
548	for (;;)	899	for (;;)
549	{	900	{
550	self->req = req = reqq_shift (&req_queue);	901	self->req = req = reqq_shift (&req_queue);
551		902
552	if (req)	903	if (req)
553	break;	904	break;
554		905
555	++idle;	906	++idle;
556		907
557	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	908	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
558	== ETIMEDOUT)	909	== ETIMEDOUT)
559	{	910	{
560	if (idle > max_idle)	911	if (idle > max_idle)
561	{	912	{
562	--idle;	913	--idle;
563	UNLOCK (reqlock);	914	X_UNLOCK (reqlock);
564	LOCK (wrklock);	915	X_LOCK (wrklock);
565	--started;	916	--started;
566	UNLOCK (wrklock);	917	X_UNLOCK (wrklock);
567	goto quit;	918	goto quit;
568	}	919	}
569		920
570	/* we are allowed to idle, so do so without any timeout */	921	/* we are allowed to idle, so do so without any timeout */
571	pthread_cond_wait (&reqwait, &reqlock);	922	X_COND_WAIT (reqwait, reqlock);
572	ts.tv_sec = time (0) + IDLE_TIMEOUT;	923	ts.tv_sec = time (0) + IDLE_TIMEOUT;
573	}	924	}
574		925
575	--idle;	926	--idle;
576	}	927	}
577		928
578	--nready;	929	--nready;
579		930
580	UNLOCK (reqlock);	931	X_UNLOCK (reqlock);
581		932
582	switch (req->type)	933	if (req->type == REQ_QUIT)
583	{	934	{
584	case REQ_QUIT:	935	X_LOCK (reslock);
		936	free (req);
		937	self->req = 0;
		938	X_UNLOCK (reslock);
		939
585	goto quit;	940	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	}	941	}
619		942
		943	bdb_request (req);
		944
620	LOCK (reslock);	945	X_LOCK (reslock);
621		946
622	++npending;	947	++npending;
623		948
624	if (!reqq_push (&res_queue, req))	949	if (!reqq_push (&res_queue, req))
625	/* write a dummy byte to the pipe so fh becomes ready */	950	/* write a dummy byte to the pipe so fh becomes ready */
626	write (respipe [1], &respipe, 1);	951	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
627		952
628	self->req = 0;	953	self->req = 0;
629	worker_clear (self);	954	worker_clear (self);
630		955
631	UNLOCK (reslock);	956	X_UNLOCK (reslock);
632	}	957	}
633		958
634	quit:	959	quit:
635	LOCK (wrklock);	960	X_LOCK (wrklock);
636	worker_free (self);	961	worker_free (self);
637	UNLOCK (wrklock);	962	X_UNLOCK (wrklock);
638		963
639	return 0;	964	return 0;
640	}	965	}
641		966
642	/*****************************************************************************/	967	/*****************************************************************************/
643		968
644	static void atfork_prepare (void)	969	static void atfork_prepare (void)
645	{	970	{
646	LOCK (wrklock);	971	X_LOCK (wrklock);
647	LOCK (reqlock);	972	X_LOCK (reqlock);
648	LOCK (reslock);	973	X_LOCK (reslock);
649	}	974	}
650		975
651	static void atfork_parent (void)	976	static void atfork_parent (void)
652	{	977	{
653	UNLOCK (reslock);	978	X_UNLOCK (reslock);
654	UNLOCK (reqlock);	979	X_UNLOCK (reqlock);
655	UNLOCK (wrklock);	980	X_UNLOCK (wrklock);
656	}	981	}
657		982
658	static void atfork_child (void)	983	static void atfork_child (void)
659	{	984	{
660	aio_req prv;	985	bdb_req prv;
661		986
662	while (prv = reqq_shift (&req_queue))	987	while (prv = reqq_shift (&req_queue))
663	req_free (prv);	988	req_free (prv);
664		989
665	while (prv = reqq_shift (&res_queue))	990	while (prv = reqq_shift (&res_queue))
…		…
680	idle = 0;	1005	idle = 0;
681	nreqs = 0;	1006	nreqs = 0;
682	nready = 0;	1007	nready = 0;
683	npending = 0;	1008	npending = 0;
684		1009
685	close (respipe [0]);
686	close (respipe [1]);
687	create_pipe ();	1010	create_respipe ();
688		1011
689	atfork_parent ();	1012	atfork_parent ();
690	}	1013	}
691		1014
692	#define dREQ(reqtype) \	1015	#define dREQ(reqtype,rsvcnt) \
693	aio_req req; \	1016	bdb_req req; \
694	int req_pri = next_pri; \	1017	int req_pri = next_pri; \
695	next_pri = DEFAULT_PRI + PRI_BIAS; \	1018	next_pri = DEFAULT_PRI + PRI_BIAS; \
696	\	1019	\
697	if (SvOK (callback) && !SvROK (callback)) \	1020	if (callback && SvOK (callback)) \
698	croak ("callback must be undef or of reference type"); \	1021	croak ("callback has illegal type or extra arguments"); \
699	\	1022	\
700	Newz (0, req, 1, aio_cb); \	1023	Newz (0, req, 1, bdb_cb); \
701	if (!req) \	1024	if (!req) \
702	croak ("out of memory during aio_req allocation"); \	1025	croak ("out of memory during bdb_req allocation"); \
703	\	1026	\
704	req->callback = newSVsv (callback); \	1027	req->callback = SvREFCNT_inc (cb); \
705	req->type = (reqtype); \	1028	req->type = (reqtype); \
706	req->pri = req_pri	1029	req->pri = req_pri; \
		1030	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1031	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1032	(void)0;
707		1033
708	#define REQ_SEND \	1034	#define REQ_SEND \
709	req_send (req)	1035	req_send (req)
710		1036
711	#define SvPTR(var, arg, type, class) \	1037	#define SvPTR(var, arg, type, class, nullok) \
712	if (!SvOK (arg)) \	1038	if (!SvOK (arg)) \
		1039	{ \
		1040	if (nullok != 1) \
		1041	croak (# var " must be a " # class " object, not undef"); \
		1042	\
713	(var) = 0; \	1043	(var) = 0; \
		1044	} \
714	else if (sv_derived_from ((arg), # class)) \	1045	else if (sv_derived_from ((arg), # class)) \
715	{ \	1046	{ \
716	IV tmp = SvIV ((SV*) SvRV (arg)); \	1047	IV tmp = SvIV ((SV*) SvRV (arg)); \
717	(var) = INT2PTR (type, tmp); \	1048	(var) = INT2PTR (type, tmp); \
		1049	if (!var && nullok != 2) \
		1050	croak (# var " is not a valid " # class " object anymore"); \
718	} \	1051	} \
719	else \	1052	else \
720	Perl_croak (# var " is not of type " # class)	1053	croak (# var " is not of type " # class);
721		1054
722	inline void	1055	#define ARG_MUTABLE(name) \
723	set_dbt (DBT *dbt, SV *sv)	1056	if (SvREADONLY (name)) \
724	{	1057	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		1058
728	dbt->data = malloc (len);	1059	static void
729	memcpy (dbt->data, data, len);	1060	ptr_nuke (SV *sv)
730	dbt->size = len;	1061	{
		1062	assert (SvROK (sv));
		1063	sv_setiv (SvRV (sv), 0);
731	}	1064	}
732		1065
		1066	static int
		1067	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1068	{
		1069	if (*mg->mg_ptr == '!') // should always be the case
		1070	if (-30999 <= errno && errno <= -30800)
		1071	{
		1072	sv_setnv (sv, (NV)errno);
		1073	sv_setpv (sv, db_strerror (errno));
		1074	SvNOK_on (sv); /* what a wonderful hack! */
		1075	// ^^^ copied from perl sources
		1076	return 0;
		1077	}
		1078
		1079	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1080	}
		1081
		1082	static MGVTBL vtbl_errno;
		1083
		1084	// this wonderful hack :( patches perl's $! variable to support our errno values
		1085	static void
		1086	patch_errno (void)
		1087	{
		1088	SV *sv;
		1089	MAGIC *mg;
		1090
		1091	if (!(sv = get_sv ("!", 1)))
		1092	return;
		1093
		1094	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1095	return;
		1096
		1097	if (mg->mg_virtual != &PL_vtbl_sv)
		1098	return;
		1099
		1100	vtbl_errno = PL_vtbl_sv;
		1101	vtbl_errno.svt_get = errno_get;
		1102	mg->mg_virtual = &vtbl_errno;
		1103	}
		1104
		1105	#if __GNUC__ >= 4
		1106	# define noinline __attribute__ ((noinline))
		1107	#else
		1108	# define noinline
		1109	#endif
		1110
		1111	static noinline SV *
		1112	pop_callback (I32 *ritems, SV *sv)
		1113	{
		1114	if (SvROK (sv))
		1115	{
		1116	HV *st;
		1117	GV *gvp;
		1118	CV *cv;
		1119	const char *name;
		1120
		1121	/* forgive me */
		1122	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1123	&& (st = SvSTASH (SvRV (sv)))
		1124	&& (name = HvNAME_get (st))
		1125	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1126	return 0;
		1127
		1128	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1129	{
		1130	--*ritems;
		1131	return (SV *)cv;
		1132	}
		1133	}
		1134
		1135	return 0;
		1136	}
		1137
		1138	/* stupid windows defines CALLBACK as well */
		1139	#undef CALLBACK
		1140	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1141
733	MODULE = BDB PACKAGE = BDB	1142	MODULE = BDB PACKAGE = BDB
734		1143
735	PROTOTYPES: ENABLE	1144	PROTOTYPES: ENABLE
736		1145
737	BOOT:	1146	BOOT:
…		…
752	const_iv (INIT_TXN)	1161	const_iv (INIT_TXN)
753	const_iv (RECOVER)	1162	const_iv (RECOVER)
754	const_iv (INIT_TXN)	1163	const_iv (INIT_TXN)
755	const_iv (RECOVER_FATAL)	1164	const_iv (RECOVER_FATAL)
756	const_iv (CREATE)	1165	const_iv (CREATE)
		1166	const_iv (RDONLY)
757	const_iv (USE_ENVIRON)	1167	const_iv (USE_ENVIRON)
758	const_iv (USE_ENVIRON_ROOT)	1168	const_iv (USE_ENVIRON_ROOT)
759	const_iv (LOCKDOWN)	1169	const_iv (LOCKDOWN)
760	const_iv (PRIVATE)	1170	const_iv (PRIVATE)
761	const_iv (REGISTER)
762	const_iv (SYSTEM_MEM)	1171	const_iv (SYSTEM_MEM)
763	const_iv (AUTO_COMMIT)	1172	const_iv (AUTO_COMMIT)
764	const_iv (CDB_ALLDB)	1173	const_iv (CDB_ALLDB)
765	const_iv (DIRECT_DB)	1174	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)	1175	const_iv (NOLOCKING)
772	const_iv (MULTIVERSION)
773	const_iv (NOMMAP)	1176	const_iv (NOMMAP)
774	const_iv (NOPANIC)	1177	const_iv (NOPANIC)
775	const_iv (OVERWRITE)	1178	const_iv (OVERWRITE)
776	const_iv (PANIC_ENVIRONMENT)	1179	const_iv (PANIC_ENVIRONMENT)
777	const_iv (REGION_INIT)	1180	const_iv (REGION_INIT)
778	const_iv (TIME_NOTGRANTED)	1181	const_iv (TIME_NOTGRANTED)
779	const_iv (TXN_NOSYNC)	1182	const_iv (TXN_NOSYNC)
780	const_iv (TXN_SNAPSHOT)	1183	const_iv (TXN_NOT_DURABLE)
781	const_iv (TXN_WRITE_NOSYNC)	1184	const_iv (TXN_WRITE_NOSYNC)
		1185	const_iv (WRITECURSOR)
782	const_iv (YIELDCPU)	1186	const_iv (YIELDCPU)
783	const_iv (ENCRYPT_AES)	1187	const_iv (ENCRYPT_AES)
784	const_iv (XA_CREATE)	1188	const_iv (XA_CREATE)
785	const_iv (BTREE)	1189	const_iv (BTREE)
786	const_iv (HASH)	1190	const_iv (HASH)
787	const_iv (QUEUE)	1191	const_iv (QUEUE)
788	const_iv (RECNO)	1192	const_iv (RECNO)
789	const_iv (UNKNOWN)	1193	const_iv (UNKNOWN)
790	const_iv (EXCL)	1194	const_iv (EXCL)
791	const_iv (READ_UNCOMMITTED)
792	const_iv (TRUNCATE)	1195	const_iv (TRUNCATE)
793	const_iv (NOSYNC)	1196	const_iv (NOSYNC)
794	const_iv (CHKSUM)	1197	const_iv (CHKSUM)
795	const_iv (ENCRYPT)	1198	const_iv (ENCRYPT)
796	const_iv (TXN_NOT_DURABLE)
797	const_iv (DUP)	1199	const_iv (DUP)
798	const_iv (DUPSORT)	1200	const_iv (DUPSORT)
799	const_iv (RECNUM)	1201	const_iv (RECNUM)
800	const_iv (RENUMBER)	1202	const_iv (RENUMBER)
801	const_iv (REVSPLITOFF)	1203	const_iv (REVSPLITOFF)
802	const_iv (INORDER)
803	const_iv (CONSUME)	1204	const_iv (CONSUME)
804	const_iv (CONSUME_WAIT)	1205	const_iv (CONSUME_WAIT)
		1206	const_iv (GET_BOTH)
		1207	const_iv (GET_BOTH_RANGE)
		1208	//const_iv (SET_RECNO)
		1209	//const_iv (MULTIPLE)
805	const_iv (SNAPSHOT)	1210	const_iv (SNAPSHOT)
806	const_iv (JOIN_ITEM)	1211	const_iv (JOIN_ITEM)
		1212	const_iv (JOIN_NOSORT)
807	const_iv (RMW)	1213	const_iv (RMW)
808		1214
809	const_iv (NOTFOUND)	1215	const_iv (NOTFOUND)
810	const_iv (KEYEMPTY)	1216	const_iv (KEYEMPTY)
811	const_iv (LOCK_DEADLOCK)	1217	const_iv (LOCK_DEADLOCK)
812	const_iv (LOCK_NOTGRANTED)	1218	const_iv (LOCK_NOTGRANTED)
813	const_iv (RUNRECOVERY)	1219	const_iv (RUNRECOVERY)
814	const_iv (OLD_VERSION)	1220	const_iv (OLD_VERSION)
815	const_iv (REP_HANDLE_DEAD)	1221	const_iv (REP_HANDLE_DEAD)
816	const_iv (REP_LOCKOUT)	1222	const_iv (SECONDARY_BAD)
817
818	const_iv (FREE_SPACE)
819	const_iv (FREELIST_ONLY)
820		1223
821	const_iv (APPEND)	1224	const_iv (APPEND)
822	const_iv (NODUPDATA)	1225	const_iv (NODUPDATA)
823	const_iv (NOOVERWRITE)	1226	const_iv (NOOVERWRITE)
824		1227
		1228	const_iv (TXN_NOWAIT)
		1229	const_iv (TXN_SYNC)
		1230
825	const_iv (SET_LOCK_TIMEOUT)	1231	const_iv (SET_LOCK_TIMEOUT)
826	const_iv (SET_TXN_TIMEOUT)	1232	const_iv (SET_TXN_TIMEOUT)
		1233
		1234	const_iv (FIRST)
		1235	const_iv (NEXT)
		1236	const_iv (NEXT_DUP)
		1237	const_iv (NEXT_NODUP)
		1238	const_iv (PREV)
		1239	const_iv (PREV_NODUP)
		1240	const_iv (SET)
		1241	const_iv (SET_RANGE)
		1242	const_iv (LAST)
		1243	const_iv (BEFORE)
		1244	const_iv (AFTER)
		1245	const_iv (CURRENT)
		1246	const_iv (KEYFIRST)
		1247	const_iv (KEYLAST)
		1248	const_iv (NODUPDATA)
		1249
		1250	const_iv (FORCE)
		1251
		1252	const_iv (LOCK_DEFAULT)
		1253	const_iv (LOCK_EXPIRE)
		1254	const_iv (LOCK_MAXLOCKS)
		1255	const_iv (LOCK_MINLOCKS)
		1256	const_iv (LOCK_MINWRITE)
		1257	const_iv (LOCK_OLDEST)
		1258	const_iv (LOCK_RANDOM)
		1259	const_iv (LOCK_YOUNGEST)
		1260
		1261	const_iv (DONOTINDEX)
		1262	const_iv (KEYEMPTY )
		1263	const_iv (KEYEXIST )
		1264	const_iv (LOCK_DEADLOCK)
		1265	const_iv (LOCK_NOTGRANTED)
		1266	const_iv (NOSERVER)
		1267	const_iv (NOSERVER_HOME)
		1268	const_iv (NOSERVER_ID)
		1269	const_iv (NOTFOUND)
		1270	const_iv (PAGE_NOTFOUND)
		1271	const_iv (REP_DUPMASTER)
		1272	const_iv (REP_HANDLE_DEAD)
		1273	const_iv (REP_HOLDELECTION)
		1274	const_iv (REP_ISPERM)
		1275	const_iv (REP_NEWMASTER)
		1276	const_iv (REP_NEWSITE)
		1277	const_iv (REP_NOTPERM)
		1278	const_iv (REP_UNAVAIL)
		1279	const_iv (RUNRECOVERY)
		1280	const_iv (SECONDARY_BAD)
		1281	const_iv (VERIFY_BAD)
		1282
		1283	const_iv (VERB_DEADLOCK)
		1284	const_iv (VERB_RECOVERY)
		1285	const_iv (VERB_REPLICATION)
		1286	const_iv (VERB_WAITSFOR)
		1287
		1288	const_iv (VERSION_MAJOR)
		1289	const_iv (VERSION_MINOR)
		1290	const_iv (VERSION_PATCH)
		1291	#if DB_VERSION_MINOR >= 3
		1292	const_iv (INORDER)
		1293	const_iv (LOCK_MAXWRITE)
		1294	const_iv (SEQ_DEC)
		1295	const_iv (SEQ_INC)
		1296	const_iv (SEQ_WRAP)
		1297	const_iv (BUFFER_SMALL)
		1298	const_iv (LOG_BUFFER_FULL)
		1299	const_iv (VERSION_MISMATCH)
		1300	#endif
		1301	#if DB_VERSION_MINOR >= 4
		1302	const_iv (REGISTER)
		1303	const_iv (DSYNC_DB)
		1304	const_iv (READ_COMMITTED)
		1305	const_iv (READ_UNCOMMITTED)
		1306	const_iv (REP_IGNORE)
		1307	const_iv (REP_LOCKOUT)
		1308	const_iv (REP_JOIN_FAILURE)
		1309	const_iv (FREE_SPACE)
		1310	const_iv (FREELIST_ONLY)
		1311	const_iv (VERB_REGISTER)
		1312	#endif
		1313	#if DB_VERSION_MINOR >= 5
		1314	const_iv (MULTIVERSION)
		1315	const_iv (TXN_SNAPSHOT)
		1316	#endif
		1317	#if DB_VERSION_MINOR >= 6
		1318	const_iv (PREV_DUP)
		1319	const_iv (PRIORITY_UNCHANGED)
		1320	const_iv (PRIORITY_VERY_LOW)
		1321	const_iv (PRIORITY_LOW)
		1322	const_iv (PRIORITY_DEFAULT)
		1323	const_iv (PRIORITY_HIGH)
		1324	const_iv (PRIORITY_VERY_HIGH)
		1325	#endif
		1326	#if DB_VERSION_MINOR >= 7
		1327	const_iv (LOG_DIRECT)
		1328	const_iv (LOG_DSYNC)
		1329	const_iv (LOG_AUTO_REMOVE)
		1330	const_iv (LOG_IN_MEMORY)
		1331	const_iv (LOG_ZERO)
		1332	#else
		1333	const_iv (DIRECT_LOG)
		1334	const_iv (LOG_AUTOREMOVE)
		1335	# if DB_VERSION_MINOR >= 3
		1336	const_iv (DSYNC_LOG)
		1337	const_iv (LOG_INMEMORY)
		1338	# endif
		1339	#endif
827	};	1340	};
828		1341
829	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1342	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
830	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1343	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
831		1344
832	create_pipe ();	1345	prepare_cb = &PL_sv_undef;
		1346
		1347	{
		1348	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1349	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1350
		1351	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1352	}
		1353
		1354	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1355
		1356	create_respipe ();
		1357
833	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1358	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1359	patch_errno ();
834	}	1360	}
835		1361
836	void	1362	void
837	max_poll_reqs (int nreqs)	1363	max_poll_reqs (int nreqs)
838	PROTOTYPE: $	1364	PROTOTYPE: $
…		…
957		1483
958	int	1484	int
959	nthreads ()	1485	nthreads ()
960	PROTOTYPE:	1486	PROTOTYPE:
961	CODE:	1487	CODE:
962	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1488	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
963	RETVAL = started;	1489	RETVAL = started;
964	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1490	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
965	OUTPUT:	1491	OUTPUT:
966	RETVAL	1492	RETVAL
967		1493
968	void	1494	SV *
969	set_sync_prepare (SV *cb)	1495	set_sync_prepare (SV *cb)
970	PROTOTYPE: &	1496	PROTOTYPE: &
971	CODE:	1497	CODE:
972	SvREFCNT_dec (prepare_cb);	1498	RETVAL = prepare_cb;
973	prepare_cb = newSVsv (cb);	1499	prepare_cb = newSVsv (cb);
		1500	OUTPUT:
		1501	RETVAL
		1502
		1503	char *
		1504	strerror (int errorno = errno)
		1505	PROTOTYPE: ;$
		1506	CODE:
		1507	RETVAL = db_strerror (errorno);
		1508	OUTPUT:
		1509	RETVAL
		1510
		1511	void _on_next_submit (SV *cb)
		1512	CODE:
		1513	SvREFCNT_dec (on_next_submit);
		1514	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
974		1515
975	DB_ENV *	1516	DB_ENV *
976	db_env_create (U32 env_flags = 0)	1517	db_env_create (U32 env_flags = 0)
977	CODE:	1518	CODE:
978	{	1519	{
979	errno = db_env_create (&RETVAL, env_flags);	1520	errno = db_env_create (&RETVAL, env_flags);
980	if (errno)	1521	if (errno)
981	croak ("db_env_create: %s", db_strerror (errno));	1522	croak ("db_env_create: %s", db_strerror (errno));
		1523
		1524	if (0)
		1525	{
		1526	RETVAL->set_errcall (RETVAL, debug_errcall);
		1527	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1528	}
982	}	1529	}
983	OUTPUT:	1530	OUTPUT:
984	RETVAL	1531	RETVAL
985		1532
986	void	1533	void
987	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1534	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1535	PREINIT:
		1536	CALLBACK
988	CODE:	1537	CODE:
989	{	1538	{
990	dREQ (REQ_ENV_OPEN);	1539	dREQ (REQ_ENV_OPEN, 1);
991	req->env = env;	1540	req->env = env;
992	req->uint1 = open_flags | DB_THREAD;	1541	req->uint1 = open_flags | DB_THREAD;
993	req->int1 = mode;	1542	req->int1 = mode;
994	req->buf1 = strdup_ornull (db_home);	1543	req->buf1 = strdup_ornull (db_home);
995	REQ_SEND;	1544	REQ_SEND;
996	}	1545	}
997		1546
998	void	1547	void
999	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1548	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1549	PREINIT:
		1550	CALLBACK
1000	CODE:	1551	CODE:
1001	{	1552	{
1002	dREQ (REQ_ENV_CLOSE);	1553	dREQ (REQ_ENV_CLOSE, 0);
		1554	ptr_nuke (ST (0));
1003	req->env = env;	1555	req->env = env;
1004	req->uint1 = flags;	1556	req->uint1 = flags;
1005	REQ_SEND;	1557	REQ_SEND;
1006	}	1558	}
1007		1559
		1560	void
		1561	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1562	PREINIT:
		1563	CALLBACK
		1564	CODE:
		1565	{
		1566	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1567	req->env = env;
		1568	req->uint1 = kbyte;
		1569	req->int1 = min;
		1570	req->uint2 = flags;
		1571	REQ_SEND;
		1572	}
		1573
		1574	void
		1575	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1576	PREINIT:
		1577	CALLBACK
		1578	CODE:
		1579	{
		1580	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1581	req->env = env;
		1582	req->uint1 = flags;
		1583	req->uint2 = atype;
		1584	/* req->int2 = 0; dummy */
		1585	REQ_SEND;
		1586	}
		1587
		1588	void
		1589	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1590	PREINIT:
		1591	CALLBACK
		1592	CODE:
		1593	{
		1594	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1595	req->env = env;
		1596	REQ_SEND;
		1597	}
		1598
		1599	void
		1600	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1601	PREINIT:
		1602	CALLBACK
		1603	CODE:
		1604	{
		1605	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1606	req->env = env;
		1607	req->int1 = percent;
		1608	REQ_SEND;
		1609	}
		1610
		1611	void
		1612	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1613	PREINIT:
		1614	CALLBACK
		1615	CODE:
		1616	{
		1617	dREQ (REQ_ENV_DBREMOVE, 2);
		1618	req->env = env;
		1619	req->buf1 = strdup_ornull (file);
		1620	req->buf2 = strdup_ornull (database);
		1621	req->uint1 = flags;
		1622	REQ_SEND;
		1623	}
		1624
		1625	void
		1626	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)
		1627	PREINIT:
		1628	CALLBACK
		1629	CODE:
		1630	{
		1631	dREQ (REQ_ENV_DBRENAME, 2);
		1632	req->env = env;
		1633	req->buf1 = strdup_ornull (file);
		1634	req->buf2 = strdup_ornull (database);
		1635	req->buf3 = strdup_ornull (newname);
		1636	req->uint1 = flags;
		1637	REQ_SEND;
		1638	}
		1639
1008	DB *	1640	DB *
1009	db_create (DB_ENV *env = 0, U32 flags = 0)	1641	db_create (DB_ENV *env = 0, U32 flags = 0)
1010	CODE:	1642	CODE:
1011	{	1643	{
1012	errno = db_create (&RETVAL, env, flags);	1644	errno = db_create (&RETVAL, env, flags);
1013	if (errno)	1645	if (errno)
1014	croak ("db_env_create: %s", db_strerror (errno));	1646	croak ("db_create: %s", db_strerror (errno));
		1647
		1648	if (RETVAL)
		1649	RETVAL->app_private = (void *)newSVsv (ST (0));
1015	}	1650	}
1016	OUTPUT:	1651	OUTPUT:
1017	RETVAL	1652	RETVAL
1018		1653
1019	void	1654	void
1020	db_open (DB *db, DB_TXN *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1655	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1656	PREINIT:
		1657	CALLBACK
1021	CODE:	1658	CODE:
1022	{	1659	{
1023	dREQ (REQ_DB_OPEN);	1660	dREQ (REQ_DB_OPEN, 2);
1024	req->db = db;	1661	req->db = db;
1025	req->txn = txnid;	1662	req->txn = txnid;
1026	req->buf1 = strdup_ornull (file);	1663	req->buf1 = strdup_ornull (file);
1027	req->buf2 = strdup_ornull (database);	1664	req->buf2 = strdup_ornull (database);
1028	req->int1 = type;	1665	req->int1 = type;
…		…
1030	req->int2 = mode;	1667	req->int2 = mode;
1031	REQ_SEND;	1668	REQ_SEND;
1032	}	1669	}
1033		1670
1034	void	1671	void
1035	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1672	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1673	PREINIT:
		1674	CALLBACK
1036	CODE:	1675	CODE:
1037	{	1676	{
1038	dREQ (REQ_DB_CLOSE);	1677	dREQ (REQ_DB_CLOSE, 0);
		1678	ptr_nuke (ST (0));
1039	req->db = db;	1679	req->db = db;
1040	req->uint1 = flags;	1680	req->uint1 = flags;
		1681	req->sv1 = (SV *)db->app_private;
1041	REQ_SEND;	1682	REQ_SEND;
1042	}	1683	}
1043		1684
		1685	#if DB_VERSION_MINOR >= 4
		1686
1044	void	1687	void
1045	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)	1688	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)
		1689	PREINIT:
		1690	CALLBACK
1046	CODE:	1691	CODE:
1047	{	1692	{
1048	dREQ (REQ_DB_COMPACT);	1693	dREQ (REQ_DB_COMPACT, 2);
1049	req->db = db;	1694	req->db = db;
1050	req->txn = txn;	1695	req->txn = txn;
1051	set_dbt (&req->dbt1, start);	1696	sv_to_dbt (&req->dbt1, start);
1052	set_dbt (&req->dbt2, stop);	1697	sv_to_dbt (&req->dbt2, stop);
1053	req->uint1 = flags;	1698	req->uint1 = flags;
1054	REQ_SEND;	1699	REQ_SEND;
1055	}	1700	}
1056		1701
		1702	#endif
		1703
1057	void	1704	void
1058	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1705	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1706	PREINIT:
		1707	CALLBACK
1059	CODE:	1708	CODE:
1060	{	1709	{
1061	dREQ (REQ_DB_SYNC);	1710	dREQ (REQ_DB_SYNC, 1);
1062	req->db = db;	1711	req->db = db;
1063	req->uint1 = flags;	1712	req->uint1 = flags;
1064	REQ_SEND;	1713	REQ_SEND;
1065	}	1714	}
1066		1715
1067	void	1716	void
1068	db_put (DB *db, DB_TXN *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1717	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1718	PREINIT:
		1719	CALLBACK
1069	CODE:	1720	CODE:
1070	{	1721	{
1071	dREQ (REQ_DB_PUT);	1722	dREQ (REQ_DB_SYNC, 1);
1072	req->db = db;	1723	req->db = db;
1073	req->txn = 0;	1724	req->buf1 = strdup (file);
1074	set_dbt (&req->dbt1, key);
1075	set_dbt (&req->dbt2, data);
1076	req->uint1 = flags;	1725	req->uint1 = flags;
1077	REQ_SEND;	1726	REQ_SEND;
1078	}	1727	}
1079		1728
		1729	void
		1730	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1731	PREINIT:
		1732	CALLBACK
		1733	CODE:
		1734	{
		1735	dREQ (REQ_DB_KEY_RANGE, 2);
		1736	req->db = db;
		1737	req->txn = txn;
		1738	sv_to_dbt (&req->dbt1, key);
		1739	req->uint1 = flags;
		1740	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1741	REQ_SEND;
		1742	}
		1743
		1744	void
		1745	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1746	PREINIT:
		1747	CALLBACK
		1748	CODE:
		1749	{
		1750	dREQ (REQ_DB_PUT, 2);
		1751	req->db = db;
		1752	req->txn = txn;
		1753	sv_to_dbt (&req->dbt1, key);
		1754	sv_to_dbt (&req->dbt2, data);
		1755	req->uint1 = flags;
		1756	REQ_SEND;
		1757	}
		1758
		1759	#if DB_VERSION_MINOR >= 6
		1760
		1761	void
		1762	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1763	PREINIT:
		1764	CALLBACK
		1765	CODE:
		1766	{
		1767	dREQ (REQ_DB_EXISTS, 2);
		1768	req->db = db;
		1769	req->txn = txn;
		1770	req->uint1 = flags;
		1771	sv_to_dbt (&req->dbt1, key);
		1772	REQ_SEND;
		1773	}
		1774
		1775	#endif
		1776
		1777	void
		1778	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1779	PREINIT:
		1780	CALLBACK
		1781	CODE:
		1782	{
		1783	//TODO: key is somtimesmutable
		1784	dREQ (REQ_DB_GET, 2);
		1785	req->db = db;
		1786	req->txn = txn;
		1787	req->uint1 = flags;
		1788	sv_to_dbt (&req->dbt1, key);
		1789	req->dbt3.flags = DB_DBT_MALLOC;
		1790	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1791	REQ_SEND;
		1792	}
		1793
		1794	void
		1795	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1796	PREINIT:
		1797	CALLBACK
		1798	CODE:
		1799	{
		1800	//TODO: key is somtimesmutable
		1801	dREQ (REQ_DB_PGET, 2);
		1802	req->db = db;
		1803	req->txn = txn;
		1804	req->uint1 = flags;
		1805
		1806	sv_to_dbt (&req->dbt1, key);
		1807
		1808	req->dbt2.flags = DB_DBT_MALLOC;
		1809	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1810
		1811	req->dbt3.flags = DB_DBT_MALLOC;
		1812	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1813	REQ_SEND;
		1814	}
		1815
		1816	void
		1817	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1818	PREINIT:
		1819	CALLBACK
		1820	CODE:
		1821	{
		1822	dREQ (REQ_DB_DEL, 2);
		1823	req->db = db;
		1824	req->txn = txn;
		1825	req->uint1 = flags;
		1826	sv_to_dbt (&req->dbt1, key);
		1827	REQ_SEND;
		1828	}
		1829
		1830	void
		1831	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1832	PREINIT:
		1833	CALLBACK
		1834	CODE:
		1835	{
		1836	dREQ (REQ_TXN_COMMIT, 0);
		1837	ptr_nuke (ST (0));
		1838	req->txn = txn;
		1839	req->uint1 = flags;
		1840	REQ_SEND;
		1841	}
		1842
		1843	void
		1844	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1845	PREINIT:
		1846	CALLBACK
		1847	CODE:
		1848	{
		1849	dREQ (REQ_TXN_ABORT, 0);
		1850	ptr_nuke (ST (0));
		1851	req->txn = txn;
		1852	REQ_SEND;
		1853	}
		1854
		1855	void
		1856	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1857	PREINIT:
		1858	CALLBACK
		1859	CODE:
		1860	{
		1861	dREQ (REQ_TXN_FINISH, 0);
		1862	ptr_nuke (ST (0));
		1863	req->txn = txn;
		1864	req->uint1 = flags;
		1865	REQ_SEND;
		1866	}
		1867
		1868	void
		1869	db_c_close (DBC *dbc, SV *callback = 0)
		1870	PREINIT:
		1871	CALLBACK
		1872	CODE:
		1873	{
		1874	dREQ (REQ_C_CLOSE, 0);
		1875	ptr_nuke (ST (0));
		1876	req->dbc = dbc;
		1877	REQ_SEND;
		1878	}
		1879
		1880	void
		1881	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1882	PREINIT:
		1883	CALLBACK
		1884	CODE:
		1885	{
		1886	dREQ (REQ_C_COUNT, 1);
		1887	req->dbc = dbc;
		1888	req->sv1 = SvREFCNT_inc (count);
		1889	REQ_SEND;
		1890	}
		1891
		1892	void
		1893	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1894	PREINIT:
		1895	CALLBACK
		1896	CODE:
		1897	{
		1898	dREQ (REQ_C_PUT, 1);
		1899	req->dbc = dbc;
		1900	sv_to_dbt (&req->dbt1, key);
		1901	sv_to_dbt (&req->dbt2, data);
		1902	req->uint1 = flags;
		1903	REQ_SEND;
		1904	}
		1905
		1906	void
		1907	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1908	PREINIT:
		1909	CALLBACK
		1910	CODE:
		1911	{
		1912	if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
		1913	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		1914	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		1915	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		1916	"key",
		1917	"BDB::db_c_get");
		1918
		1919	{
		1920	dREQ (REQ_C_GET, 1);
		1921	req->dbc = dbc;
		1922	req->uint1 = flags;
		1923	if (flags & DB_OPFLAGS_MASK == DB_SET)
		1924	sv_to_dbt (&req->dbt1, key);
		1925	else
		1926	{
		1927	if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
		1928	sv_to_dbt (&req->dbt1, key);
		1929	else
		1930	req->dbt1.flags = DB_DBT_MALLOC;
		1931
		1932	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1933	}
		1934
		1935	if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
		1936	|| flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
		1937	sv_to_dbt (&req->dbt3, data);
		1938	else
		1939	req->dbt3.flags = DB_DBT_MALLOC;
		1940
		1941	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1942	REQ_SEND;
		1943	}
		1944	}
		1945
		1946	void
		1947	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1948	PREINIT:
		1949	CALLBACK
		1950	CODE:
		1951	{
		1952	if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
		1953	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		1954	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		1955	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		1956	"key",
		1957	"BDB::db_c_pget");
		1958
		1959	{
		1960	dREQ (REQ_C_PGET, 1);
		1961	req->dbc = dbc;
		1962	req->uint1 = flags;
		1963	if (flags & DB_OPFLAGS_MASK == DB_SET)
		1964	sv_to_dbt (&req->dbt1, key);
		1965	else
		1966	{
		1967	if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
		1968	sv_to_dbt (&req->dbt1, key);
		1969	else
		1970	req->dbt1.flags = DB_DBT_MALLOC;
		1971
		1972	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1973	}
		1974
		1975	req->dbt2.flags = DB_DBT_MALLOC;
		1976	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1977
		1978	if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
		1979	|| flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
		1980	sv_to_dbt (&req->dbt3, data);
		1981	else
		1982	req->dbt3.flags = DB_DBT_MALLOC;
		1983
		1984	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1985	REQ_SEND;
		1986	}
		1987	}
		1988
		1989	void
		1990	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1991	PREINIT:
		1992	CALLBACK
		1993	CODE:
		1994	{
		1995	dREQ (REQ_C_DEL, 1);
		1996	req->dbc = dbc;
		1997	req->uint1 = flags;
		1998	REQ_SEND;
		1999	}
		2000
		2001
		2002	#if DB_VERSION_MINOR >= 3
		2003
		2004	void
		2005	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2006	PREINIT:
		2007	CALLBACK
		2008	CODE:
		2009	{
		2010	dREQ (REQ_SEQ_OPEN, 2);
		2011	req->seq = seq;
		2012	req->txn = txnid;
		2013	req->uint1 = flags | DB_THREAD;
		2014	sv_to_dbt (&req->dbt1, key);
		2015	REQ_SEND;
		2016	}
		2017
		2018	void
		2019	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2020	PREINIT:
		2021	CALLBACK
		2022	CODE:
		2023	{
		2024	dREQ (REQ_SEQ_CLOSE, 0);
		2025	ptr_nuke (ST (0));
		2026	req->seq = seq;
		2027	req->uint1 = flags;
		2028	REQ_SEND;
		2029	}
		2030
		2031	void
		2032	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2033	PREINIT:
		2034	CALLBACK
		2035	CODE:
		2036	{
		2037	dREQ (REQ_SEQ_GET, 2);
		2038	req->seq = seq;
		2039	req->txn = txnid;
		2040	req->int1 = delta;
		2041	req->uint1 = flags;
		2042	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2043	REQ_SEND;
		2044	}
		2045
		2046	void
		2047	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2048	PREINIT:
		2049	CALLBACK
		2050	CODE:
		2051	{
		2052	dREQ (REQ_SEQ_REMOVE, 2);
		2053	req->seq = seq;
		2054	req->txn = txnid;
		2055	req->uint1 = flags;
		2056	REQ_SEND;
		2057	}
		2058
		2059	#endif
		2060
1080		2061
1081	MODULE = BDB PACKAGE = BDB::Env	2062	MODULE = BDB PACKAGE = BDB::Env
1082		2063
		2064	void
		2065	DESTROY (DB_ENV_ornuked *env)
		2066	CODE:
		2067	if (env)
		2068	env->close (env, 0);
		2069
		2070	int set_data_dir (DB_ENV *env, const char *dir)
		2071	CODE:
		2072	RETVAL = env->set_data_dir (env, dir);
		2073	OUTPUT:
		2074	RETVAL
		2075
		2076	int set_tmp_dir (DB_ENV *env, const char *dir)
		2077	CODE:
		2078	RETVAL = env->set_tmp_dir (env, dir);
		2079	OUTPUT:
		2080	RETVAL
		2081
		2082	int set_lg_dir (DB_ENV *env, const char *dir)
		2083	CODE:
		2084	RETVAL = env->set_lg_dir (env, dir);
		2085	OUTPUT:
		2086	RETVAL
		2087
		2088	int set_shm_key (DB_ENV *env, long shm_key)
		2089	CODE:
		2090	RETVAL = env->set_shm_key (env, shm_key);
		2091	OUTPUT:
		2092	RETVAL
		2093
1083	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2094	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1084	CODE:	2095	CODE:
1085	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	2096	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1086	OUTPUT:	2097	OUTPUT:
1087	RETVAL	2098	RETVAL
1088		2099
1089	int set_flags (DB_ENV *env, U32 flags, int onoff)	2100	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1090	CODE:	2101	CODE:
1091	RETVAL = env->set_flags (env, flags, onoff);	2102	RETVAL = env->set_flags (env, flags, onoff);
1092	OUTPUT:	2103	OUTPUT:
1093	RETVAL	2104	RETVAL
1094		2105
		2106	#if DB_VERSION_MINOR >= 7
		2107
		2108	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2109	CODE:
		2110	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2115	CODE:
		2116	RETVAL = env->log_set_config (env, flags, onoff);
		2117	OUTPUT:
		2118	RETVAL
		2119
		2120	#endif
		2121
		2122
		2123	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2124	CODE:
		2125	env->set_errfile (env, errfile);
		2126
		2127	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2128	CODE:
		2129	env->set_msgfile (env, msgfile);
		2130
		2131	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2132	CODE:
		2133	RETVAL = env->set_verbose (env, which, onoff);
		2134	OUTPUT:
		2135	RETVAL
		2136
1095	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2137	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1096	CODE:	2138	CODE:
1097	RETVAL = env->set_encrypt (env, password, flags);	2139	RETVAL = env->set_encrypt (env, password, flags);
1098	OUTPUT:	2140	OUTPUT:
1099	RETVAL	2141	RETVAL
1100		2142
1101	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2143	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1102	CODE:	2144	CODE:
1103	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2145	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1104	OUTPUT:	2146	OUTPUT:
1105	RETVAL	2147	RETVAL
1106		2148
		2149	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2150	CODE:
		2151	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2152	OUTPUT:
		2153	RETVAL
		2154
		2155	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2156	CODE:
		2157	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2162	CODE:
		2163	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2168	CODE:
		2169	RETVAL = env->set_lk_detect (env, detect);
		2170	OUTPUT:
		2171	RETVAL
		2172
		2173	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2174	CODE:
		2175	RETVAL = env->set_lk_max_lockers (env, max);
		2176	OUTPUT:
		2177	RETVAL
		2178
		2179	int set_lk_max_locks (DB_ENV *env, U32 max)
		2180	CODE:
		2181	RETVAL = env->set_lk_max_locks (env, max);
		2182	OUTPUT:
		2183	RETVAL
		2184
		2185	int set_lk_max_objects (DB_ENV *env, U32 max)
		2186	CODE:
		2187	RETVAL = env->set_lk_max_objects (env, max);
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int set_lg_bsize (DB_ENV *env, U32 max)
		2192	CODE:
		2193	RETVAL = env->set_lg_bsize (env, max);
		2194	OUTPUT:
		2195	RETVAL
		2196
		2197	int set_lg_max (DB_ENV *env, U32 max)
		2198	CODE:
		2199	RETVAL = env->set_lg_max (env, max);
		2200	OUTPUT:
		2201	RETVAL
		2202
		2203	#if DB_VERSION_MINOR >= 4
		2204
		2205	int mutex_set_max (DB_ENV *env, U32 max)
		2206	CODE:
		2207	RETVAL = env->mutex_set_max (env, max);
		2208	OUTPUT:
		2209	RETVAL
		2210
		2211	int mutex_set_increment (DB_ENV *env, U32 increment)
		2212	CODE:
		2213	RETVAL = env->mutex_set_increment (env, increment);
		2214	OUTPUT:
		2215	RETVAL
		2216
		2217	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2218	CODE:
		2219	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2220	OUTPUT:
		2221	RETVAL
		2222
		2223	int mutex_set_align (DB_ENV *env, U32 align)
		2224	CODE:
		2225	RETVAL = env->mutex_set_align (env, align);
		2226	OUTPUT:
		2227	RETVAL
		2228
		2229	#endif
		2230
		2231	DB_TXN *
		2232	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2233	CODE:
		2234	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2235	if (errno)
		2236	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2237	OUTPUT:
		2238	RETVAL
		2239
		2240	#if DB_VERSION_MINOR >= 5
		2241
		2242	DB_TXN *
		2243	cdsgroup_begin (DB_ENV *env)
		2244	CODE:
		2245	errno = env->cdsgroup_begin (env, &RETVAL);
		2246	if (errno)
		2247	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2248	OUTPUT:
		2249	RETVAL
		2250
		2251	#endif
1107		2252
1108	MODULE = BDB PACKAGE = BDB::Db	2253	MODULE = BDB PACKAGE = BDB::Db
1109		2254
		2255	void
		2256	DESTROY (DB_ornuked *db)
		2257	CODE:
		2258	if (db)
		2259	{
		2260	SV *env = (SV *)db->app_private;
		2261	db->close (db, 0);
		2262	SvREFCNT_dec (env);
		2263	}
		2264
1110	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2265	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1111	CODE:	2266	CODE:
1112	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2267	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1113	OUTPUT:	2268	OUTPUT:
1114	RETVAL	2269	RETVAL
1115		2270
1116	int set_flags (DB *db, U32 flags);	2271	int set_flags (DB *db, U32 flags)
1117	CODE:	2272	CODE:
1118	RETVAL = db->set_flags (db, flags);	2273	RETVAL = db->set_flags (db, flags);
1119	OUTPUT:	2274	OUTPUT:
1120	RETVAL	2275	RETVAL
1121		2276
…		…
1129	CODE:	2284	CODE:
1130	RETVAL = db->set_lorder (db, lorder);	2285	RETVAL = db->set_lorder (db, lorder);
1131	OUTPUT:	2286	OUTPUT:
1132	RETVAL	2287	RETVAL
1133		2288
1134
1135	int set_bt_minkey (DB *db, U32 minkey)	2289	int set_bt_minkey (DB *db, U32 minkey)
1136	CODE:	2290	CODE:
1137	RETVAL = db->set_bt_minkey (db, minkey);	2291	RETVAL = db->set_bt_minkey (db, minkey);
1138	OUTPUT:	2292	OUTPUT:
1139	RETVAL	2293	RETVAL
1140		2294
1141	int set_re_delim(DB *db, int delim);	2295	int set_re_delim (DB *db, int delim)
1142	CODE:	2296	CODE:
1143	RETVAL = db->set_re_delim (db, delim);	2297	RETVAL = db->set_re_delim (db, delim);
1144	OUTPUT:	2298	OUTPUT:
1145	RETVAL	2299	RETVAL
1146		2300
…		…
1178	CODE:	2332	CODE:
1179	RETVAL = db->set_q_extentsize (db, extentsize);	2333	RETVAL = db->set_q_extentsize (db, extentsize);
1180	OUTPUT:	2334	OUTPUT:
1181	RETVAL	2335	RETVAL
1182		2336
		2337	DBC *
		2338	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2339	CODE:
		2340	errno = db->cursor (db, txn, &RETVAL, flags);
		2341	if (errno)
		2342	croak ("DB->cursor: %s", db_strerror (errno));
		2343	OUTPUT:
		2344	RETVAL
1183		2345
		2346	#if DB_VERSION_MINOR >= 3
		2347
		2348	DB_SEQUENCE *
		2349	sequence (DB *db, U32 flags = 0)
		2350	CODE:
		2351	{
		2352	errno = db_sequence_create (&RETVAL, db, flags);
		2353	if (errno)
		2354	croak ("db_sequence_create: %s", db_strerror (errno));
		2355	}
		2356	OUTPUT:
		2357	RETVAL
		2358
		2359	#endif
		2360
		2361
		2362	MODULE = BDB PACKAGE = BDB::Txn
		2363
		2364	void
		2365	DESTROY (DB_TXN_ornuked *txn)
		2366	CODE:
		2367	if (txn)
		2368	txn->abort (txn);
		2369
		2370	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2371	CODE:
		2372	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2373	OUTPUT:
		2374	RETVAL
		2375
		2376	int failed (DB_TXN *txn)
		2377	CODE:
		2378	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382
		2383	MODULE = BDB PACKAGE = BDB::Cursor
		2384
		2385	void
		2386	DESTROY (DBC_ornuked *dbc)
		2387	CODE:
		2388	if (dbc)
		2389	dbc->c_close (dbc);
		2390
		2391	#if DB_VERSION_MINOR >= 6
		2392
		2393	int set_priority (DBC *dbc, int priority)
		2394	CODE:
		2395	dbc->set_priority (dbc, priority);
		2396
		2397	#endif
		2398
		2399	#if DB_VERSION_MINOR >= 3
		2400
		2401	MODULE = BDB PACKAGE = BDB::Sequence
		2402
		2403	void
		2404	DESTROY (DB_SEQUENCE_ornuked *seq)
		2405	CODE:
		2406	if (seq)
		2407	seq->close (seq, 0);
		2408
		2409	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2410	CODE:
		2411	RETVAL = seq->initial_value (seq, value);
		2412	OUTPUT:
		2413	RETVAL
		2414
		2415	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2416	CODE:
		2417	RETVAL = seq->set_cachesize (seq, size);
		2418	OUTPUT:
		2419	RETVAL
		2420
		2421	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2422	CODE:
		2423	RETVAL = seq->set_flags (seq, flags);
		2424	OUTPUT:
		2425	RETVAL
		2426
		2427	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2428	CODE:
		2429	RETVAL = seq->set_range (seq, min, max);
		2430	OUTPUT:
		2431	RETVAL
		2432
		2433	#endif
		2434
		2435

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