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Comparing BDB/BDB.xs (file contents):
Revision 1.2 by root, Mon Feb 5 20:21:38 2007 UTC vs.
Revision 1.60 by root, Mon Oct 20 02:58:42 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		59
		60	static SV *prepare_cb;
		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
		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 *
		115	strdup_ornull (const char *s)
		116	{
		117	return s ? strdup (s) : 0;
		118	}
		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
47	enum	150	enum {
48	{
49	REQ_QUIT,	151	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	152	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	153	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		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,
52	};	159	};
53		160
54	typedef struct aio_cb	161	typedef struct bdb_cb
55	{	162	{
56	struct aio_cb *volatile next;	163	struct bdb_cb *volatile next;
57	SV *callback;	164	SV *callback;
58	int type, pri, errorno;	165	int type, pri, result;
59		166
60	DB_ENV *env;	167	DB_ENV *env;
61	DB *db;	168	DB *db;
62	DB_TXN *txn;	169	DB_TXN *txn;
63	DBC *cursor;	170	DBC *dbc;
		171
		172	UV uv1;
64	int int1, int2;	173	int int1, int2;
65	U32 uint1, uint2;	174	U32 uint1, uint2;
66	char *buf1, *buf2;	175	char *buf1, *buf2, *buf3;
67	} aio_cb;	176	SV *sv1, *sv2, *sv3;
68		177
		178	DBT dbt1, dbt2, dbt3;
		179	DB_KEY_RANGE key_range;
		180	#if DB_VERSION_MINOR >= 3
		181	DB_SEQUENCE *seq;
		182	db_seq_t seq_t;
		183	#endif
		184
		185	SV *rsv1, *rsv2; // keep some request objects alive
		186	} bdb_cb;
		187
69	typedef aio_cb *aio_req;	188	typedef bdb_cb *bdb_req;
70		189
71	enum {	190	enum {
72	PRI_MIN = -4,	191	PRI_MIN = -4,
73	PRI_MAX = 4,	192	PRI_MAX = 4,
74		193
…		…
77	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	196	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
78	};	197	};
79		198
80	#define AIO_TICKS ((1000000 + 1023) >> 10)	199	#define AIO_TICKS ((1000000 + 1023) >> 10)
81		200
		201	static SV *on_next_submit;
		202
82	static unsigned int max_poll_time = 0;	203	static unsigned int max_poll_time = 0;
83	static unsigned int max_poll_reqs = 0;	204	static unsigned int max_poll_reqs = 0;
84		205
85	/* calculcate time difference in ~1/AIO_TICKS of a second */	206	/* calculcate time difference in ~1/AIO_TICKS of a second */
86	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	207	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
91		212
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	213	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		214
94	static unsigned int started, idle, wanted;	215	static unsigned int started, idle, wanted;
95		216
96	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
97	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
98	#else
99	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
100	#endif
101
102	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
103	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104
105	/* worker threads management */	217	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	218	static mutex_t wrklock = X_MUTEX_INIT;
107		219
108	typedef struct worker {	220	typedef struct worker {
109	/* locked by wrklock */	221	/* locked by wrklock */
110	struct worker *prev, *next;	222	struct worker *prev, *next;
111		223
112	pthread_t tid;	224	thread_t tid;
113		225
114	/* locked by reslock, reqlock or wrklock */	226	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	227	bdb_req req; /* currently processed request */
116	void *dbuf;	228	void *dbuf;
117	DIR *dirp;	229	DIR *dirp;
118	} worker;	230	} worker;
119		231
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	232	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	244	}
133		245
134	static volatile unsigned int nreqs, nready, npending;	246	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	247	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	248	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	249	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		250
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	251	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	252	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	253	static cond_t reqwait = X_COND_INIT;
142		254
143	#if WORDACCESS_UNSAFE	255	#if WORDACCESS_UNSAFE
144		256
145	static unsigned int get_nready ()	257	static unsigned int get_nready (void)
146	{	258	{
147	unsigned int retval;	259	unsigned int retval;
148		260
149	LOCK (reqlock);	261	X_LOCK (reqlock);
150	retval = nready;	262	retval = nready;
151	UNLOCK (reqlock);	263	X_UNLOCK (reqlock);
152		264
153	return retval;	265	return retval;
154	}	266	}
155		267
156	static unsigned int get_npending ()	268	static unsigned int get_npending (void)
157	{	269	{
158	unsigned int retval;	270	unsigned int retval;
159		271
160	LOCK (reslock);	272	X_LOCK (reslock);
161	retval = npending;	273	retval = npending;
162	UNLOCK (reslock);	274	X_UNLOCK (reslock);
163		275
164	return retval;	276	return retval;
165	}	277	}
166		278
167	static unsigned int get_nthreads ()	279	static unsigned int get_nthreads (void)
168	{	280	{
169	unsigned int retval;	281	unsigned int retval;
170		282
171	LOCK (wrklock);	283	X_LOCK (wrklock);
172	retval = started;	284	retval = started;
173	UNLOCK (wrklock);	285	X_UNLOCK (wrklock);
174		286
175	return retval;	287	return retval;
176	}	288	}
177		289
178	#else	290	#else
…		…
187	* a somewhat faster data structure might be nice, but	299	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	300	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	301	* per shift, the most expensive operation.
190	*/	302	*/
191	typedef struct {	303	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	304	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	305	int size;
194	} reqq;	306	} reqq;
195		307
196	static reqq req_queue;	308	static reqq req_queue;
197	static reqq res_queue;	309	static reqq res_queue;
198		310
199	int reqq_push (reqq *q, aio_req req)	311	int reqq_push (reqq *q, bdb_req req)
200	{	312	{
201	int pri = req->pri;	313	int pri = req->pri;
202	req->next = 0;	314	req->next = 0;
203		315
204	if (q->qe[pri])	316	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	322	q->qe[pri] = q->qs[pri] = req;
211		323
212	return q->size++;	324	return q->size++;
213	}	325	}
214		326
215	aio_req reqq_shift (reqq *q)	327	bdb_req reqq_shift (reqq *q)
216	{	328	{
217	int pri;	329	int pri;
218		330
219	if (!q->size)	331	if (!q->size)
220	return 0;	332	return 0;
221		333
222	--q->size;	334	--q->size;
223		335
224	for (pri = NUM_PRI; pri--; )	336	for (pri = NUM_PRI; pri--; )
225	{	337	{
226	aio_req req = q->qs[pri];	338	bdb_req req = q->qs[pri];
227		339
228	if (req)	340	if (req)
229	{	341	{
230	if (!(q->qs[pri] = req->next))	342	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	343	q->qe[pri] = 0;
…		…
235	}	347	}
236		348
237	abort ();	349	abort ();
238	}	350	}
239		351
240	static int poll_cb ();	352	static int poll_cb (void);
241	static void req_free (aio_req req);	353	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);
243		354
244	static int req_invoke (aio_req req)	355	static int req_invoke (bdb_req req)
245	{	356	{
246	dSP;	357	switch (req->type)
247
248	if (SvOK (req->callback))
249	{	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
250	ENTER;	408	ENTER;
251	SAVETMPS;	409	SAVETMPS;
252	PUSHMARK (SP);	410	PUSHMARK (SP);
253	EXTEND (SP, 1);
254
255	switch (req->type)
256	{
257	}
258		411
259	PUTBACK;	412	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	413	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	414	SPAGAIN;
262		415
263	FREETMPS;	416	FREETMPS;
264	LEAVE;	417	LEAVE;
		418
		419	return !SvTRUE (ERRSV);
265	}	420	}
266		421
267	return !SvTRUE (ERRSV);	422	return 1;
268	}	423	}
269		424
270	static void req_free (aio_req req)	425	static void req_free (bdb_req req)
271	{	426	{
		427	SvREFCNT_dec (req->callback);
		428
		429	SvREFCNT_dec (req->rsv1);
		430	SvREFCNT_dec (req->rsv2);
		431
272	free (req->buf1);	432	free (req->buf1);
273	free (req->buf2);	433	free (req->buf2);
		434	free (req->buf3);
		435
274	Safefree (req);	436	Safefree (req);
275	}	437	}
276		438
277	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);
278		488
279	static void start_thread (void)	489	static void start_thread (void)
280	{	490	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	491	worker *wrk = calloc (1, sizeof (worker));
285		492
286	if (!wrk)	493	if (!wrk)
287	croak ("unable to allocate worker thread data");	494	croak ("unable to allocate worker thread data");
288		495
289	pthread_attr_init (&attr);
290	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
291	#ifdef PTHREAD_SCOPE_PROCESS
292	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
293	#endif
294
295	sigfillset (&fullsigset);
296
297	LOCK (wrklock);	496	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	497	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	498	{
302	wrk->prev = &wrk_first;	499	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	500	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	501	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	502	wrk_first.next = wrk;
306	++started;	503	++started;
307	}	504	}
308	else	505	else
309	free (wrk);	506	free (wrk);
310		507
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	508	X_UNLOCK (wrklock);
313	}	509	}
314		510
315	static void maybe_start_thread ()	511	static void maybe_start_thread (void)
316	{	512	{
317	if (get_nthreads () >= wanted)	513	if (get_nthreads () >= wanted)
318	return;	514	return;
319		515
320	/* todo: maybe use idle here, but might be less exact */	516	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	518	return;
323		519
324	start_thread ();	520	start_thread ();
325	}	521	}
326		522
327	static void req_send (aio_req req)	523	static void req_send (bdb_req req)
328	{	524	{
		525	SV *wait_callback = 0;
		526
		527	if (on_next_submit)
		528	{
		529	dSP;
		530	SV *cb = sv_2mortal (on_next_submit);
		531
		532	on_next_submit = 0;
		533
		534	PUSHMARK (SP);
		535	PUTBACK;
		536	call_sv (cb, G_DISCARD | G_EVAL);
		537	SPAGAIN;
		538	}
		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
329	++nreqs;	569	++nreqs;
330		570
331	LOCK (reqlock);	571	X_LOCK (reqlock);
332	++nready;	572	++nready;
333	reqq_push (&req_queue, req);	573	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	574	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	575	X_UNLOCK (reqlock);
336		576
337	maybe_start_thread ();	577	maybe_start_thread ();
		578
		579	if (wait_callback)
		580	{
		581	dSP;
		582	PUSHMARK (SP);
		583	PUTBACK;
		584	call_sv (wait_callback, G_DISCARD);
		585	}
338	}	586	}
339		587
340	static void end_thread (void)	588	static void end_thread (void)
341	{	589	{
342	aio_req req;	590	bdb_req req = calloc (1, sizeof (bdb_cb));
343
344	Newz (0, req, 1, aio_cb);
345		591
346	req->type = REQ_QUIT;	592	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	593	req->pri = PRI_MAX + PRI_BIAS;
348		594
349	LOCK (reqlock);	595	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	596	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	597	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	598	X_UNLOCK (reqlock);
353		599
354	LOCK (wrklock);	600	X_LOCK (wrklock);
355	--started;	601	--started;
356	UNLOCK (wrklock);	602	X_UNLOCK (wrklock);
357	}	603	}
358		604
359	static void set_max_idle (int nthreads)	605	static void set_max_idle (int nthreads)
360	{	606	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	607	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	608	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	609	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	610	}
365		611
366	static void min_parallel (int nthreads)	612	static void min_parallel (int nthreads)
367	{	613	{
368	if (wanted < nthreads)	614	if (wanted < nthreads)
…		…
376		622
377	while (started > wanted)	623	while (started > wanted)
378	end_thread ();	624	end_thread ();
379	}	625	}
380		626
381	static void poll_wait ()	627	static void poll_wait (void)
382	{	628	{
383	fd_set rfd;	629	fd_set rfd;
384		630
385	while (nreqs)	631	while (nreqs)
386	{	632	{
387	int size;	633	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	634	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	635	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	636	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		637
392	if (size)	638	if (size)
393	return;	639	return;
394		640
395	maybe_start_thread ();	641	maybe_start_thread ();
396		642
397	FD_ZERO(&rfd);	643	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	644	FD_SET (respipe [0], &rfd);
399		645
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	646	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	647	}
402	}	648	}
403		649
404	static int poll_cb ()	650	static int poll_cb (void)
405	{	651	{
406	dSP;	652	dSP;
407	int count = 0;	653	int count = 0;
408	int maxreqs = max_poll_reqs;	654	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	655	int do_croak = 0;
410	struct timeval tv_start, tv_now;	656	struct timeval tv_start, tv_now;
411	aio_req req;	657	bdb_req req;
412		658
413	if (max_poll_time)	659	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	660	gettimeofday (&tv_start, 0);
415		661
416	for (;;)	662	for (;;)
417	{	663	{
418	for (;;)	664	for (;;)
419	{	665	{
420	maybe_start_thread ();	666	maybe_start_thread ();
421		667
422	LOCK (reslock);	668	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	669	req = reqq_shift (&res_queue);
424		670
425	if (req)	671	if (req)
426	{	672	{
427	--npending;	673	--npending;
428		674
429	if (!res_queue.size)	675	if (!res_queue.size)
430	{	676	{
431	/* read any signals sent by the worker threads */	677	/* read any signals sent by the worker threads */
432	char buf [4];	678	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	679	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	680	;
435	}	681	}
436	}	682	}
437		683
438	UNLOCK (reslock);	684	X_UNLOCK (reslock);
439		685
440	if (!req)	686	if (!req)
441	break;	687	break;
442		688
443	--nreqs;	689	--nreqs;
…		…
473	}	719	}
474		720
475	return count;	721	return count;
476	}	722	}
477		723
478	static void create_pipe ()
479	{
480	if (pipe (respipe))
481	croak ("unable to initialize result pipe");
482
483	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
484	croak ("cannot set result pipe to nonblocking mode");
485
486	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
487	croak ("cannot set result pipe to nonblocking mode");
488	}
489
490	/*****************************************************************************/	724	/*****************************************************************************/
491		725
492	static void *aio_proc (void *thr_arg)	726	static void
		727	bdb_request (bdb_req req)
493	{	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	{
494	aio_req req;	886	bdb_req req;
495	struct timespec ts;	887	struct timespec ts;
496	worker *self = (worker *)thr_arg;	888	worker *self = (worker *)thr_arg;
497		889
498	/* try to distribute timeouts somewhat evenly */	890	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	891	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		892
502	for (;;)	893	for (;;)
503	{	894	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	895	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		896
506	LOCK (reqlock);	897	X_LOCK (reqlock);
507		898
508	for (;;)	899	for (;;)
509	{	900	{
510	self->req = req = reqq_shift (&req_queue);	901	self->req = req = reqq_shift (&req_queue);
511		902
512	if (req)	903	if (req)
513	break;	904	break;
514		905
515	++idle;	906	++idle;
516		907
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	908	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	909	== ETIMEDOUT)
519	{	910	{
520	if (idle > max_idle)	911	if (idle > max_idle)
521	{	912	{
522	--idle;	913	--idle;
523	UNLOCK (reqlock);	914	X_UNLOCK (reqlock);
524	LOCK (wrklock);	915	X_LOCK (wrklock);
525	--started;	916	--started;
526	UNLOCK (wrklock);	917	X_UNLOCK (wrklock);
527	goto quit;	918	goto quit;
528	}	919	}
529		920
530	/* we are allowed to idle, so do so without any timeout */	921	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	922	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	923	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	924	}
534		925
535	--idle;	926	--idle;
536	}	927	}
537		928
538	--nready;	929	--nready;
539		930
540	UNLOCK (reqlock);	931	X_UNLOCK (reqlock);
541
542	errno = 0; /* strictly unnecessary */
543		932
544	switch (req->type)	933	if (req->type == REQ_QUIT)
545	{	934	{
546	case REQ_QUIT:	935	X_LOCK (reslock);
		936	free (req);
		937	self->req = 0;
		938	X_UNLOCK (reslock);
		939
547	goto quit;	940	goto quit;
548
549	default:
550	//req->result = ENOSYS;
551	break;
552	}	941	}
553		942
554	//req->errorno = errno;	943	bdb_request (req);
555		944
556	LOCK (reslock);	945	X_LOCK (reslock);
557		946
558	++npending;	947	++npending;
559		948
560	if (!reqq_push (&res_queue, req))	949	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	950	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	951	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		952
564	self->req = 0;	953	self->req = 0;
565	worker_clear (self);	954	worker_clear (self);
566		955
567	UNLOCK (reslock);	956	X_UNLOCK (reslock);
568	}	957	}
569		958
570	quit:	959	quit:
571	LOCK (wrklock);	960	X_LOCK (wrklock);
572	worker_free (self);	961	worker_free (self);
573	UNLOCK (wrklock);	962	X_UNLOCK (wrklock);
574		963
575	return 0;	964	return 0;
576	}	965	}
577		966
578	/*****************************************************************************/	967	/*****************************************************************************/
579		968
580	static void atfork_prepare (void)	969	static void atfork_prepare (void)
581	{	970	{
582	LOCK (wrklock);	971	X_LOCK (wrklock);
583	LOCK (reqlock);	972	X_LOCK (reqlock);
584	LOCK (reslock);	973	X_LOCK (reslock);
585	}	974	}
586		975
587	static void atfork_parent (void)	976	static void atfork_parent (void)
588	{	977	{
589	UNLOCK (reslock);	978	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	979	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	980	X_UNLOCK (wrklock);
592	}	981	}
593		982
594	static void atfork_child (void)	983	static void atfork_child (void)
595	{	984	{
596	aio_req prv;	985	bdb_req prv;
597		986
598	while (prv = reqq_shift (&req_queue))	987	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	988	req_free (prv);
600		989
601	while (prv = reqq_shift (&res_queue))	990	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	1005	idle = 0;
617	nreqs = 0;	1006	nreqs = 0;
618	nready = 0;	1007	nready = 0;
619	npending = 0;	1008	npending = 0;
620		1009
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	1010	create_respipe ();
624		1011
625	atfork_parent ();	1012	atfork_parent ();
626	}	1013	}
627		1014
628	#define dREQ(reqtype) \	1015	#define dREQ(reqtype,rsvcnt) \
629	aio_req req; \	1016	bdb_req req; \
630	int req_pri = next_pri; \	1017	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	1018	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	1019	\
633	if (SvOK (callback) && !SvROK (callback)) \	1020	if (callback && SvOK (callback)) \
634	croak ("callback must be undef or of reference type"); \	1021	croak ("callback has illegal type or extra arguments"); \
635	\	1022	\
636	Newz (0, req, 1, aio_cb); \	1023	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	1024	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	1025	croak ("out of memory during bdb_req allocation"); \
639	\	1026	\
640	req->callback = newSVsv (callback); \	1027	req->callback = SvREFCNT_inc (cb); \
641	req->type = (reqtype); \	1028	req->type = (reqtype); \
642	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;
643		1033
644	#define REQ_SEND \	1034	#define REQ_SEND \
645	req_send (req)	1035	req_send (req)
646		1036
647	#define SvPTR(var, arg, type, class) \	1037	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	1038	if (!SvOK (arg)) \
		1039	{ \
		1040	if (nullok != 1) \
		1041	croak (# var " must be a " # class " object, not undef"); \
		1042	\
649	(var) = 0; \	1043	(var) = 0; \
		1044	} \
650	else if (sv_derived_from ((arg), # class)) \	1045	else if (sv_derived_from ((arg), # class)) \
651	{ \	1046	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	1047	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	1048	(var) = INT2PTR (type, tmp); \
		1049	if (!var && nullok != 2) \
		1050	croak (# var " is not a valid " # class " object anymore"); \
654	} \	1051	} \
655	else \	1052	else \
656	Perl_croak (# var " is not of type " # type)	1053	croak (# var " is not of type " # class);
657		1054
		1055	#define ARG_MUTABLE(name) \
		1056	if (SvREADONLY (name)) \
		1057	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1058
		1059	static void
		1060	ptr_nuke (SV *sv)
		1061	{
		1062	assert (SvROK (sv));
		1063	sv_setiv (SvRV (sv), 0);
		1064	}
		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
658	MODULE = BDB PACKAGE = BDB	1142	MODULE = BDB PACKAGE = BDB
659		1143
660	PROTOTYPES: ENABLE	1144	PROTOTYPES: ENABLE
661		1145
662	BOOT:	1146	BOOT:
…		…
677	const_iv (INIT_TXN)	1161	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1162	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1163	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1164	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1165	const_iv (CREATE)
		1166	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1167	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1168	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1169	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1170	const_iv (PRIVATE)
686	const_iv (REGISTER)
687	const_iv (SYSTEM_MEM)	1171	const_iv (SYSTEM_MEM)
688	const_iv (AUTO_COMMIT)	1172	const_iv (AUTO_COMMIT)
689	const_iv (CDB_ALLDB)	1173	const_iv (CDB_ALLDB)
690	const_iv (DIRECT_DB)	1174	const_iv (DIRECT_DB)
691	const_iv (DIRECT_LOG)
692	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1175	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1176	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1177	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1178	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1179	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1180	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1181	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1182	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1183	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1184	const_iv (TXN_WRITE_NOSYNC)
		1185	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1186	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1187	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1188	const_iv (XA_CREATE)
710	const_iv (BTREE)	1189	const_iv (BTREE)
711	const_iv (HASH)	1190	const_iv (HASH)
712	const_iv (QUEUE)	1191	const_iv (QUEUE)
713	const_iv (RECNO)	1192	const_iv (RECNO)
714	const_iv (UNKNOWN)	1193	const_iv (UNKNOWN)
715	const_iv (EXCL)	1194	const_iv (EXCL)
716	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1195	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1196	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1197	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1198	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1199	const_iv (DUP)
723	const_iv (DUPSORT)	1200	const_iv (DUPSORT)
724	const_iv (RECNUM)	1201	const_iv (RECNUM)
725	const_iv (RENUMBER)	1202	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1203	const_iv (REVSPLITOFF)
727	const_iv (INORDER)
728	const_iv (CONSUME)	1204	const_iv (CONSUME)
729	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)
730	const_iv (SNAPSHOT)	1210	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1211	const_iv (JOIN_ITEM)
		1212	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1213	const_iv (RMW)
733		1214
734	const_iv (NOTFOUND)	1215	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1216	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1217	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1218	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1219	const_iv (RUNRECOVERY)
		1220	const_iv (OLD_VERSION)
		1221	const_iv (REP_HANDLE_DEAD)
		1222	const_iv (SECONDARY_BAD)
		1223
		1224	const_iv (APPEND)
		1225	const_iv (NODUPDATA)
		1226	const_iv (NOOVERWRITE)
		1227
		1228	const_iv (TXN_NOWAIT)
		1229	const_iv (TXN_SYNC)
		1230
		1231	const_iv (SET_LOCK_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
739	};	1340	};
740		1341
741	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; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1343	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1344
744	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
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1358	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1359	patch_errno ();
746	}	1360	}
747		1361
748	void	1362	void
749	max_poll_reqs (int nreqs)	1363	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1364	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1393	max_outstanding = maxreqs;
780	OUTPUT:	1394	OUTPUT:
781	RETVAL	1395	RETVAL
782		1396
783	int	1397	int
784	bdbreq_pri (int pri = 0)	1398	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1399	PROTOTYPE: ;$
786	CODE:	1400	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1401	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1402	if (items > 0)
789	{	1403	{
…		…
793	}	1407	}
794	OUTPUT:	1408	OUTPUT:
795	RETVAL	1409	RETVAL
796		1410
797	void	1411	void
798	bdbreq_nice (int nice = 0)	1412	dbreq_nice (int nice = 0)
799	CODE:	1413	CODE:
800	nice = next_pri - nice;	1414	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1415	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1416	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1417	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1425	poll_wait ();
812	poll_cb ();	1426	poll_cb ();
813	}	1427	}
814		1428
815	int	1429	int
816	poll()	1430	poll ()
817	PROTOTYPE:	1431	PROTOTYPE:
818	CODE:	1432	CODE:
819	poll_wait ();	1433	poll_wait ();
820	RETVAL = poll_cb ();	1434	RETVAL = poll_cb ();
821	OUTPUT:	1435	OUTPUT:
822	RETVAL	1436	RETVAL
823		1437
824	int	1438	int
825	poll_fileno()	1439	poll_fileno ()
826	PROTOTYPE:	1440	PROTOTYPE:
827	CODE:	1441	CODE:
828	RETVAL = respipe [0];	1442	RETVAL = respipe [0];
829	OUTPUT:	1443	OUTPUT:
830	RETVAL	1444	RETVAL
831		1445
832	int	1446	int
833	poll_cb(...)	1447	poll_cb (...)
834	PROTOTYPE:	1448	PROTOTYPE:
835	CODE:	1449	CODE:
836	RETVAL = poll_cb ();	1450	RETVAL = poll_cb ();
837	OUTPUT:	1451	OUTPUT:
838	RETVAL	1452	RETVAL
839		1453
840	void	1454	void
841	poll_wait()	1455	poll_wait ()
842	PROTOTYPE:	1456	PROTOTYPE:
843	CODE:	1457	CODE:
844	poll_wait ();	1458	poll_wait ();
845		1459
846	int	1460	int
847	nreqs()	1461	nreqs ()
848	PROTOTYPE:	1462	PROTOTYPE:
849	CODE:	1463	CODE:
850	RETVAL = nreqs;	1464	RETVAL = nreqs;
851	OUTPUT:	1465	OUTPUT:
852	RETVAL	1466	RETVAL
853		1467
854	int	1468	int
855	nready()	1469	nready ()
856	PROTOTYPE:	1470	PROTOTYPE:
857	CODE:	1471	CODE:
858	RETVAL = get_nready ();	1472	RETVAL = get_nready ();
859	OUTPUT:	1473	OUTPUT:
860	RETVAL	1474	RETVAL
861		1475
862	int	1476	int
863	npending()	1477	npending ()
864	PROTOTYPE:	1478	PROTOTYPE:
865	CODE:	1479	CODE:
866	RETVAL = get_npending ();	1480	RETVAL = get_npending ();
867	OUTPUT:	1481	OUTPUT:
868	RETVAL	1482	RETVAL
869		1483
870	int	1484	int
871	nthreads()	1485	nthreads ()
872	PROTOTYPE:	1486	PROTOTYPE:
873	CODE:	1487	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1488	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1489	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1490	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1491	OUTPUT:
878	RETVAL	1492	RETVAL
879		1493
		1494	SV *
		1495	set_sync_prepare (SV *cb)
		1496	PROTOTYPE: &
		1497	CODE:
		1498	RETVAL = prepare_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;
		1515
880	DB_ENV *	1516	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1517	db_env_create (U32 env_flags = 0)
882	CODE:	1518	CODE:
883	{	1519	{
884	int err = db_env_create (&RETVAL, env_flags);	1520	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1521	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1522	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1523
		1524	if (0)
		1525	{
		1526	RETVAL->set_errcall (RETVAL, debug_errcall);
		1527	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1528	}
		1529	}
		1530	OUTPUT:
		1531	RETVAL
		1532
889	void	1533	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1534	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1535	PREINIT:
		1536	CALLBACK
891	CODE:	1537	CODE:
892	{	1538	{
893	dREQ (REQ_ENV_OPEN);	1539	dREQ (REQ_ENV_OPEN, 1);
894	req->env = env;	1540	req->env = env;
895	req->uint1 = open_flags;	1541	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1542	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1543	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1544	REQ_SEND;
899	}	1545	}
900		1546
901	void	1547	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1548	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1549	PREINIT:
		1550	CALLBACK
903	CODE:	1551	CODE:
904	{	1552	{
905	dREQ (REQ_ENV_CLOSE);	1553	dREQ (REQ_ENV_CLOSE, 0);
		1554	ptr_nuke (ST (0));
906	req->env = env;	1555	req->env = env;
907	req->uint1 = flags;	1556	req->uint1 = flags;
908	REQ_SEND;	1557	REQ_SEND;
909	}	1558	}
910		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
911	DB *	1640	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1641	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1642	CODE:
914	{	1643	{
915	int err = db_create (&RETVAL, env, flags);	1644	errno = db_create (&RETVAL, env, flags);
916	if (err)	1645	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1646	croak ("db_create: %s", db_strerror (errno));
918	}
919		1647
		1648	if (RETVAL)
		1649	RETVAL->app_private = (void *)newSVsv (ST (0));
		1650	}
		1651	OUTPUT:
		1652	RETVAL
		1653
920	void	1654	void
921	bdb_db_open (DB *db, DB_TXN *txnid, const char *file, const char *database, int type, U32 flags, int mode, SV *callback = 0)	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
922	CODE:	1658	CODE:
923	{	1659	{
924	dREQ (REQ_DB_OPEN);	1660	dREQ (REQ_DB_OPEN, 2);
925	req->db = db;	1661	req->db = db;
926	req->txn = txnid;	1662	req->txn = txnid;
927	req->buf1 = strdup (file);	1663	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1664	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1665	req->int1 = type;
930	req->uint1 = flags;	1666	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1667	req->int2 = mode;
932	REQ_SEND;	1668	REQ_SEND;
933	}	1669	}
934		1670
935	void	1671	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1672	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1673	PREINIT:
		1674	CALLBACK
937	CODE:	1675	CODE:
938	{	1676	{
939	dREQ (REQ_DB_CLOSE);	1677	dREQ (REQ_DB_CLOSE, 0);
		1678	ptr_nuke (ST (0));
940	req->db = db;	1679	req->db = db;
941	req->uint1 = flags;	1680	req->uint1 = flags;
		1681	req->sv1 = (SV *)db->app_private;
		1682	REQ_SEND;
		1683	}
		1684
		1685	#if DB_VERSION_MINOR >= 4
		1686
		1687	void
		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
		1691	CODE:
		1692	{
		1693	dREQ (REQ_DB_COMPACT, 2);
		1694	req->db = db;
		1695	req->txn = txn;
		1696	sv_to_dbt (&req->dbt1, start);
		1697	sv_to_dbt (&req->dbt2, stop);
		1698	req->uint1 = flags;
		1699	REQ_SEND;
		1700	}
		1701
		1702	#endif
		1703
		1704	void
		1705	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1706	PREINIT:
		1707	CALLBACK
		1708	CODE:
		1709	{
		1710	dREQ (REQ_DB_SYNC, 1);
		1711	req->db = db;
		1712	req->uint1 = flags;
		1713	REQ_SEND;
		1714	}
		1715
		1716	void
		1717	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1718	PREINIT:
		1719	CALLBACK
		1720	CODE:
		1721	{
		1722	dREQ (REQ_DB_SYNC, 1);
		1723	req->db = db;
		1724	req->buf1 = strdup (file);
		1725	req->uint1 = flags;
		1726	REQ_SEND;
		1727	}
		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);
942	REQ_SEND;	1942	REQ_SEND;
		1943	}
943	}	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
944		2060
945		2061
946	MODULE = BDB PACKAGE = BDB::Env	2062	MODULE = BDB PACKAGE = BDB::Env
947		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
948	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)
		2095	CODE:
		2096	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2097	OUTPUT:
		2098	RETVAL
949		2099
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	2100	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2101	CODE:
		2102	RETVAL = env->set_flags (env, flags, onoff);
		2103	OUTPUT:
		2104	RETVAL
951		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
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	2137	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2138	CODE:
		2139	RETVAL = env->set_encrypt (env, password, flags);
		2140	OUTPUT:
		2141	RETVAL
		2142
		2143	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2144	CODE:
		2145	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2146	OUTPUT:
		2147	RETVAL
		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
953		2252
954	MODULE = BDB PACKAGE = BDB::Db	2253	MODULE = BDB PACKAGE = BDB::Db
955		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
956	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)
		2266	CODE:
		2267	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2268	OUTPUT:
		2269	RETVAL
957		2270
		2271	int set_pagesize (DB *db, U32 pagesize)
		2272	CODE:
		2273	RETVAL = db->set_pagesize (db, pagesize);
		2274	OUTPUT:
		2275	RETVAL
		2276
958	int set_flags (DB *env, U32 flags, int onoff)	2277	int set_flags (DB *db, U32 flags)
		2278	CODE:
		2279	RETVAL = db->set_flags (db, flags);
		2280	OUTPUT:
		2281	RETVAL
959		2282
960	int set_encrypt (DB *db, const char *password, U32 flags)	2283	int set_encrypt (DB *db, const char *password, U32 flags)
		2284	CODE:
		2285	RETVAL = db->set_encrypt (db, password, flags);
		2286	OUTPUT:
		2287	RETVAL
961		2288
962	int set_lorder (DB *db, int lorder)	2289	int set_lorder (DB *db, int lorder)
963		2290	CODE:
		2291	RETVAL = db->set_lorder (db, lorder);
		2292	OUTPUT:
		2293	RETVAL
964		2294
965	int set_bt_minkey (DB *db, U32 minkey)	2295	int set_bt_minkey (DB *db, U32 minkey)
		2296	CODE:
		2297	RETVAL = db->set_bt_minkey (db, minkey);
		2298	OUTPUT:
		2299	RETVAL
966		2300
967	int set_re_delim(DB *db, int delim);	2301	int set_re_delim (DB *db, int delim)
		2302	CODE:
		2303	RETVAL = db->set_re_delim (db, delim);
		2304	OUTPUT:
		2305	RETVAL
968		2306
969	int set_re_pad (DB *db, int re_pad)	2307	int set_re_pad (DB *db, int re_pad)
		2308	CODE:
		2309	RETVAL = db->set_re_pad (db, re_pad);
		2310	OUTPUT:
		2311	RETVAL
970		2312
971	int set_re_source (DB *db, char *source)	2313	int set_re_source (DB *db, char *source)
		2314	CODE:
		2315	RETVAL = db->set_re_source (db, source);
		2316	OUTPUT:
		2317	RETVAL
972		2318
973	int set_re_len (DB *db, U32 re_len)	2319	int set_re_len (DB *db, U32 re_len)
		2320	CODE:
		2321	RETVAL = db->set_re_len (db, re_len);
		2322	OUTPUT:
		2323	RETVAL
974		2324
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2325	int set_h_ffactor (DB *db, U32 h_ffactor)
		2326	CODE:
		2327	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2328	OUTPUT:
		2329	RETVAL
976		2330
977	int set_h_nelem (DB *db, U32 h_nelem)	2331	int set_h_nelem (DB *db, U32 h_nelem)
		2332	CODE:
		2333	RETVAL = db->set_h_nelem (db, h_nelem);
		2334	OUTPUT:
		2335	RETVAL
978		2336
979	int set_q_extentsize (DB *db, U32 extentsize)	2337	int set_q_extentsize (DB *db, U32 extentsize)
		2338	CODE:
		2339	RETVAL = db->set_q_extentsize (db, extentsize);
		2340	OUTPUT:
		2341	RETVAL
980		2342
		2343	DBC *
		2344	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2345	CODE:
		2346	errno = db->cursor (db, txn, &RETVAL, flags);
		2347	if (errno)
		2348	croak ("DB->cursor: %s", db_strerror (errno));
		2349	OUTPUT:
		2350	RETVAL
981		2351
		2352	#if DB_VERSION_MINOR >= 3
		2353
		2354	DB_SEQUENCE *
		2355	sequence (DB *db, U32 flags = 0)
		2356	CODE:
		2357	{
		2358	errno = db_sequence_create (&RETVAL, db, flags);
		2359	if (errno)
		2360	croak ("db_sequence_create: %s", db_strerror (errno));
		2361	}
		2362	OUTPUT:
		2363	RETVAL
		2364
		2365	#endif
		2366
		2367
		2368	MODULE = BDB PACKAGE = BDB::Txn
		2369
		2370	void
		2371	DESTROY (DB_TXN_ornuked *txn)
		2372	CODE:
		2373	if (txn)
		2374	txn->abort (txn);
		2375
		2376	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2377	CODE:
		2378	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	int failed (DB_TXN *txn)
		2383	CODE:
		2384	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2385	OUTPUT:
		2386	RETVAL
		2387
		2388
		2389	MODULE = BDB PACKAGE = BDB::Cursor
		2390
		2391	void
		2392	DESTROY (DBC_ornuked *dbc)
		2393	CODE:
		2394	if (dbc)
		2395	dbc->c_close (dbc);
		2396
		2397	#if DB_VERSION_MINOR >= 6
		2398
		2399	int set_priority (DBC *dbc, int priority)
		2400	CODE:
		2401	dbc->set_priority (dbc, priority);
		2402
		2403	#endif
		2404
		2405	#if DB_VERSION_MINOR >= 3
		2406
		2407	MODULE = BDB PACKAGE = BDB::Sequence
		2408
		2409	void
		2410	DESTROY (DB_SEQUENCE_ornuked *seq)
		2411	CODE:
		2412	if (seq)
		2413	seq->close (seq, 0);
		2414
		2415	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2416	CODE:
		2417	RETVAL = seq->initial_value (seq, value);
		2418	OUTPUT:
		2419	RETVAL
		2420
		2421	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2422	CODE:
		2423	RETVAL = seq->set_cachesize (seq, size);
		2424	OUTPUT:
		2425	RETVAL
		2426
		2427	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2428	CODE:
		2429	RETVAL = seq->set_flags (seq, flags);
		2430	OUTPUT:
		2431	RETVAL
		2432
		2433	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2434	CODE:
		2435	RETVAL = seq->set_range (seq, min, max);
		2436	OUTPUT:
		2437	RETVAL
		2438
		2439	#endif
		2440
		2441

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