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Comparing BDB/BDB.xs (file contents):
Revision 1.6 by root, Tue Feb 6 01:09:04 2007 UTC vs.
Revision 1.31 by root, Sun Mar 30 04:34:20 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.
34	* this is conservatice, likely most arches this runs
35	* on have atomic word read/writes.
36	*/
37	#ifndef WORDACCESS_UNSAFE
38	# if __i386 || __x86_64
39	# define WORDACCESS_UNSAFE 0
40	# else
41	# define WORDACCESS_UNSAFE 1
42	# endif
43	#endif
44
45	typedef DB_ENV DB_ENV_ornull;	39	typedef DB_ENV DB_ENV_ornull;
46	typedef DB_TXN DB_TXN_ornull;	40	typedef DB_TXN DB_TXN_ornull;
47	typedef DBC DBC_ornull;	41	typedef DBC DBC_ornull;
48	typedef DB DB_ornull;	42	typedef DB DB_ornull;
		43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		44
		45	typedef DB_ENV DB_ENV_ornuked;
		46	typedef DB_TXN DB_TXN_ornuked;
		47	typedef DBC DBC_ornuked;
		48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
49		50
50	typedef SV SV8; /* byte-sv, used for argument-checking */	51	typedef SV SV8; /* byte-sv, used for argument-checking */
51	typedef char *octetstring;	52	typedef char *octetstring;
52		53
53	static SV *prepare_cb;	54	static SV *prepare_cb;
54		55
		56	#if DB_VERSION_MINOR >= 6
		57	# define c_close close
		58	# define c_count count
		59	# define c_del del
		60	# define c_dup dup
		61	# define c_get get
		62	# define c_pget pget
		63	# define c_put put
		64	#endif
		65
		66	static void
		67	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		68	{
		69	printf ("err[%s]\n", msg);
		70	}
		71
		72	static void
		73	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		74	{
		75	printf ("msg[%s]\n", msg);
		76	}
		77
55	static inline char *	78	static char *
56	strdup_ornull (const char *s)	79	strdup_ornull (const char *s)
57	{	80	{
58	return s ? strdup (s) : 0;	81	return s ? strdup (s) : 0;
59	}	82	}
60		83
61	static inline void	84	static void
62	sv_to_dbt (DBT *dbt, SV *sv)	85	sv_to_dbt (DBT *dbt, SV *sv)
63	{	86	{
64	STRLEN len;	87	STRLEN len;
65	char *data = SvPVbyte (sv, len);	88	char *data = SvPVbyte (sv, len);
66		89
…		…
68	memcpy (dbt->data, data, len);	91	memcpy (dbt->data, data, len);
69	dbt->size = len;	92	dbt->size = len;
70	dbt->flags = DB_DBT_REALLOC;	93	dbt->flags = DB_DBT_REALLOC;
71	}	94	}
72		95
73	static inline void	96	static void
74	dbt_to_sv (SV *sv, DBT *dbt)	97	dbt_to_sv (SV *sv, DBT *dbt)
75	{	98	{
76	if (sv)	99	if (sv)
77	{	100	{
78	SvREADONLY_off (sv);	101	SvREADONLY_off (sv);
…		…
83	free (dbt->data);	106	free (dbt->data);
84	}	107	}
85		108
86	enum {	109	enum {
87	REQ_QUIT,	110	REQ_QUIT,
88	REQ_ENV_OPEN, REQ_ENV_CLOSE,	111	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		112	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
89	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL,	113	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		114	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
90	REQ_TXN_COMMIT, REQ_TXN_ABORT,	115	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
91	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,	116	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		117	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
92	};	118	};
93		119
94	typedef struct aio_cb	120	typedef struct bdb_cb
95	{	121	{
96	struct aio_cb *volatile next;	122	struct bdb_cb *volatile next;
97	SV *callback;	123	SV *callback;
98	int type, pri, result;	124	int type, pri, result;
99		125
100	DB_ENV *env;	126	DB_ENV *env;
101	DB *db;	127	DB *db;
…		…
107	U32 uint1, uint2;	133	U32 uint1, uint2;
108	char *buf1, *buf2;	134	char *buf1, *buf2;
109	SV *sv1, *sv2, *sv3;	135	SV *sv1, *sv2, *sv3;
110		136
111	DBT dbt1, dbt2, dbt3;	137	DBT dbt1, dbt2, dbt3;
112	} aio_cb;	138	DB_KEY_RANGE key_range;
		139	DB_SEQUENCE *seq;
		140	db_seq_t seq_t;
		141	} bdb_cb;
113		142
114	typedef aio_cb *aio_req;	143	typedef bdb_cb *bdb_req;
115		144
116	enum {	145	enum {
117	PRI_MIN = -4,	146	PRI_MIN = -4,
118	PRI_MAX = 4,	147	PRI_MAX = 4,
119		148
…		…
136		165
137	static int next_pri = DEFAULT_PRI + PRI_BIAS;	166	static int next_pri = DEFAULT_PRI + PRI_BIAS;
138		167
139	static unsigned int started, idle, wanted;	168	static unsigned int started, idle, wanted;
140		169
141	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143	#else
144	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145	#endif
146
147	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149
150	/* worker threads management */	170	/* worker threads management */
151	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	171	static mutex_t wrklock = X_MUTEX_INIT;
152		172
153	typedef struct worker {	173	typedef struct worker {
154	/* locked by wrklock */	174	/* locked by wrklock */
155	struct worker *prev, *next;	175	struct worker *prev, *next;
156		176
157	pthread_t tid;	177	thread_t tid;
158		178
159	/* locked by reslock, reqlock or wrklock */	179	/* locked by reslock, reqlock or wrklock */
160	aio_req req; /* currently processed request */	180	bdb_req req; /* currently processed request */
161	void *dbuf;	181	void *dbuf;
162	DIR *dirp;	182	DIR *dirp;
163	} worker;	183	} worker;
164		184
165	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	185	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
177	}	197	}
178		198
179	static volatile unsigned int nreqs, nready, npending;	199	static volatile unsigned int nreqs, nready, npending;
180	static volatile unsigned int max_idle = 4;	200	static volatile unsigned int max_idle = 4;
181	static volatile unsigned int max_outstanding = 0xffffffff;	201	static volatile unsigned int max_outstanding = 0xffffffff;
182	static int respipe [2];	202	static int respipe_osf [2], respipe [2] = { -1, -1 };
183		203
184	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	204	static mutex_t reslock = X_MUTEX_INIT;
185	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	205	static mutex_t reqlock = X_MUTEX_INIT;
186	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	206	static cond_t reqwait = X_COND_INIT;
187		207
188	#if WORDACCESS_UNSAFE	208	#if WORDACCESS_UNSAFE
189		209
190	static unsigned int get_nready ()	210	static unsigned int get_nready ()
191	{	211	{
192	unsigned int retval;	212	unsigned int retval;
193		213
194	LOCK (reqlock);	214	X_LOCK (reqlock);
195	retval = nready;	215	retval = nready;
196	UNLOCK (reqlock);	216	X_UNLOCK (reqlock);
197		217
198	return retval;	218	return retval;
199	}	219	}
200		220
201	static unsigned int get_npending ()	221	static unsigned int get_npending ()
202	{	222	{
203	unsigned int retval;	223	unsigned int retval;
204		224
205	LOCK (reslock);	225	X_LOCK (reslock);
206	retval = npending;	226	retval = npending;
207	UNLOCK (reslock);	227	X_UNLOCK (reslock);
208		228
209	return retval;	229	return retval;
210	}	230	}
211		231
212	static unsigned int get_nthreads ()	232	static unsigned int get_nthreads ()
213	{	233	{
214	unsigned int retval;	234	unsigned int retval;
215		235
216	LOCK (wrklock);	236	X_LOCK (wrklock);
217	retval = started;	237	retval = started;
218	UNLOCK (wrklock);	238	X_UNLOCK (wrklock);
219		239
220	return retval;	240	return retval;
221	}	241	}
222		242
223	#else	243	#else
…		…
232	* a somewhat faster data structure might be nice, but	252	* a somewhat faster data structure might be nice, but
233	* with 8 priorities this actually needs <20 insns	253	* with 8 priorities this actually needs <20 insns
234	* per shift, the most expensive operation.	254	* per shift, the most expensive operation.
235	*/	255	*/
236	typedef struct {	256	typedef struct {
237	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	257	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
238	int size;	258	int size;
239	} reqq;	259	} reqq;
240		260
241	static reqq req_queue;	261	static reqq req_queue;
242	static reqq res_queue;	262	static reqq res_queue;
243		263
244	int reqq_push (reqq *q, aio_req req)	264	int reqq_push (reqq *q, bdb_req req)
245	{	265	{
246	int pri = req->pri;	266	int pri = req->pri;
247	req->next = 0;	267	req->next = 0;
248		268
249	if (q->qe[pri])	269	if (q->qe[pri])
…		…
255	q->qe[pri] = q->qs[pri] = req;	275	q->qe[pri] = q->qs[pri] = req;
256		276
257	return q->size++;	277	return q->size++;
258	}	278	}
259		279
260	aio_req reqq_shift (reqq *q)	280	bdb_req reqq_shift (reqq *q)
261	{	281	{
262	int pri;	282	int pri;
263		283
264	if (!q->size)	284	if (!q->size)
265	return 0;	285	return 0;
266		286
267	--q->size;	287	--q->size;
268		288
269	for (pri = NUM_PRI; pri--; )	289	for (pri = NUM_PRI; pri--; )
270	{	290	{
271	aio_req req = q->qs[pri];	291	bdb_req req = q->qs[pri];
272		292
273	if (req)	293	if (req)
274	{	294	{
275	if (!(q->qs[pri] = req->next))	295	if (!(q->qs[pri] = req->next))
276	q->qe[pri] = 0;	296	q->qe[pri] = 0;
…		…
281		301
282	abort ();	302	abort ();
283	}	303	}
284		304
285	static int poll_cb ();	305	static int poll_cb ();
286	static void req_free (aio_req req);	306	static void req_free (bdb_req req);
287	static void req_cancel (aio_req req);	307	static void req_cancel (bdb_req req);
288		308
289	static int req_invoke (aio_req req)	309	static int req_invoke (bdb_req req)
290	{	310	{
291	dSP;	311	dSP;
292		312
293	if (SvOK (req->callback))	313	if (SvOK (req->callback))
294	{	314	{
295	ENTER;	315	ENTER;
296	SAVETMPS;	316	SAVETMPS;
297	PUSHMARK (SP);	317	PUSHMARK (SP);
298	EXTEND (SP, 1);
299		318
300	switch (req->type)	319	switch (req->type)
301	{	320	{
302	case REQ_DB_CLOSE:	321	case REQ_DB_CLOSE:
303	SvREFCNT_dec (req->sv1);	322	SvREFCNT_dec (req->sv1);
…		…
312	case REQ_C_PGET:	331	case REQ_C_PGET:
313	dbt_to_sv (req->sv1, &req->dbt1);	332	dbt_to_sv (req->sv1, &req->dbt1);
314	dbt_to_sv (req->sv2, &req->dbt2);	333	dbt_to_sv (req->sv2, &req->dbt2);
315	dbt_to_sv (req->sv3, &req->dbt3);	334	dbt_to_sv (req->sv3, &req->dbt3);
316	break;	335	break;
		336
		337	case REQ_DB_PUT:
		338	case REQ_C_PUT:
		339	dbt_to_sv (0, &req->dbt1);
		340	dbt_to_sv (0, &req->dbt2);
		341	break;
		342
		343	case REQ_DB_KEY_RANGE:
		344	{
		345	AV *av = newAV ();
		346
		347	av_push (av, newSVnv (req->key_range.less));
		348	av_push (av, newSVnv (req->key_range.equal));
		349	av_push (av, newSVnv (req->key_range.greater));
		350
		351	SvREADONLY_off (req->sv1);
		352	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		353	SvREFCNT_dec (req->sv1);
		354	}
		355	break;
		356
		357	case REQ_SEQ_GET:
		358	SvREADONLY_off (req->sv1);
		359
		360	if (sizeof (IV) > 4)
		361	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		362	else
		363	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		364
		365	SvREFCNT_dec (req->sv1);
		366	break;
317	}	367	}
318		368
319	errno = req->result;	369	errno = req->result;
320		370
321	PUTBACK;	371	PUTBACK;
…		…
327	}	377	}
328		378
329	return !SvTRUE (ERRSV);	379	return !SvTRUE (ERRSV);
330	}	380	}
331		381
332	static void req_free (aio_req req)	382	static void req_free (bdb_req req)
333	{	383	{
334	free (req->buf1);	384	free (req->buf1);
335	free (req->buf2);	385	free (req->buf2);
336	Safefree (req);	386	Safefree (req);
337	}	387	}
338		388
339	static void *aio_proc (void *arg);	389	#ifdef USE_SOCKETS_AS_HANDLES
		390	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		391	#else
		392	# define TO_SOCKET(x) (x)
		393	#endif
		394
		395	static void
		396	create_respipe ()
		397	{
		398	#ifdef _WIN32
		399	int arg; /* argg */
		400	#endif
		401	int old_readfd = respipe [0];
		402
		403	if (respipe [1] >= 0)
		404	respipe_close (TO_SOCKET (respipe [1]));
		405
		406	#ifdef _WIN32
		407	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		408	#else
		409	if (pipe (respipe))
		410	#endif
		411	croak ("unable to initialize result pipe");
		412
		413	if (old_readfd >= 0)
		414	{
		415	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		416	croak ("unable to initialize result pipe(2)");
		417
		418	respipe_close (respipe [0]);
		419	respipe [0] = old_readfd;
		420	}
		421
		422	#ifdef _WIN32
		423	arg = 1;
		424	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		425	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		426	#else
		427	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		428	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		429	#endif
		430	croak ("unable to initialize result pipe(3)");
		431
		432	respipe_osf [0] = TO_SOCKET (respipe [0]);
		433	respipe_osf [1] = TO_SOCKET (respipe [1]);
		434	}
		435
		436	X_THREAD_PROC (bdb_proc);
340		437
341	static void start_thread (void)	438	static void start_thread (void)
342	{	439	{
343	sigset_t fullsigset, oldsigset;
344	pthread_attr_t attr;
345
346	worker *wrk = calloc (1, sizeof (worker));	440	worker *wrk = calloc (1, sizeof (worker));
347		441
348	if (!wrk)	442	if (!wrk)
349	croak ("unable to allocate worker thread data");	443	croak ("unable to allocate worker thread data");
350		444
351	pthread_attr_init (&attr);
352	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
353	#ifdef PTHREAD_SCOPE_PROCESS
354	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
355	#endif
356
357	sigfillset (&fullsigset);
358
359	LOCK (wrklock);	445	X_LOCK (wrklock);
360	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
361
362	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	446	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
363	{	447	{
364	wrk->prev = &wrk_first;	448	wrk->prev = &wrk_first;
365	wrk->next = wrk_first.next;	449	wrk->next = wrk_first.next;
366	wrk_first.next->prev = wrk;	450	wrk_first.next->prev = wrk;
367	wrk_first.next = wrk;	451	wrk_first.next = wrk;
368	++started;	452	++started;
369	}	453	}
370	else	454	else
371	free (wrk);	455	free (wrk);
372		456
373	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
374	UNLOCK (wrklock);	457	X_UNLOCK (wrklock);
375	}	458	}
376		459
377	static void maybe_start_thread ()	460	static void maybe_start_thread ()
378	{	461	{
379	if (get_nthreads () >= wanted)	462	if (get_nthreads () >= wanted)
…		…
384	return;	467	return;
385		468
386	start_thread ();	469	start_thread ();
387	}	470	}
388		471
389	static void req_send (aio_req req)	472	static void req_send (bdb_req req)
390	{	473	{
391	SV *wait_callback = 0;	474	SV *wait_callback = 0;
392		475
393	// synthesize callback if none given	476	// synthesize callback if none given
394	if (!SvOK (req->callback))	477	if (!SvOK (req->callback))
395	{	478	{
		479	int count;
		480
396	dSP;	481	dSP;
397	PUSHMARK (SP);	482	PUSHMARK (SP);
398	PUTBACK;	483	PUTBACK;
399	int count = call_sv (prepare_cb, G_ARRAY);	484	count = call_sv (prepare_cb, G_ARRAY);
400	SPAGAIN;	485	SPAGAIN;
401		486
402	if (count != 2)	487	if (count != 2)
403	croak ("prepare callback must return exactly two values\n");	488	croak ("prepare callback must return exactly two values\n");
404		489
405	wait_callback = SvREFCNT_inc (POPs);	490	wait_callback = POPs;
406	SvREFCNT_dec (req->callback);	491	SvREFCNT_dec (req->callback);
407	req->callback = SvREFCNT_inc (POPs);	492	req->callback = SvREFCNT_inc (POPs);
408	}	493	}
409		494
410	++nreqs;	495	++nreqs;
411		496
412	LOCK (reqlock);	497	X_LOCK (reqlock);
413	++nready;	498	++nready;
414	reqq_push (&req_queue, req);	499	reqq_push (&req_queue, req);
415	pthread_cond_signal (&reqwait);	500	X_COND_SIGNAL (reqwait);
416	UNLOCK (reqlock);	501	X_UNLOCK (reqlock);
417		502
418	maybe_start_thread ();	503	maybe_start_thread ();
419		504
420	if (wait_callback)	505	if (wait_callback)
421	{	506	{
422	dSP;	507	dSP;
423	PUSHMARK (SP);	508	PUSHMARK (SP);
424	PUTBACK;	509	PUTBACK;
425	call_sv (wait_callback, G_DISCARD);	510	call_sv (wait_callback, G_DISCARD);
426	SvREFCNT_dec (wait_callback);
427	}	511	}
428	}	512	}
429		513
430	static void end_thread (void)	514	static void end_thread (void)
431	{	515	{
432	aio_req req;	516	bdb_req req;
433		517
434	Newz (0, req, 1, aio_cb);	518	Newz (0, req, 1, bdb_cb);
435		519
436	req->type = REQ_QUIT;	520	req->type = REQ_QUIT;
437	req->pri = PRI_MAX + PRI_BIAS;	521	req->pri = PRI_MAX + PRI_BIAS;
438		522
439	LOCK (reqlock);	523	X_LOCK (reqlock);
440	reqq_push (&req_queue, req);	524	reqq_push (&req_queue, req);
441	pthread_cond_signal (&reqwait);	525	X_COND_SIGNAL (reqwait);
442	UNLOCK (reqlock);	526	X_UNLOCK (reqlock);
443		527
444	LOCK (wrklock);	528	X_LOCK (wrklock);
445	--started;	529	--started;
446	UNLOCK (wrklock);	530	X_UNLOCK (wrklock);
447	}	531	}
448		532
449	static void set_max_idle (int nthreads)	533	static void set_max_idle (int nthreads)
450	{	534	{
451	if (WORDACCESS_UNSAFE) LOCK (reqlock);	535	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
452	max_idle = nthreads <= 0 ? 1 : nthreads;	536	max_idle = nthreads <= 0 ? 1 : nthreads;
453	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	537	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
454	}	538	}
455		539
456	static void min_parallel (int nthreads)	540	static void min_parallel (int nthreads)
457	{	541	{
458	if (wanted < nthreads)	542	if (wanted < nthreads)
…		…
473	fd_set rfd;	557	fd_set rfd;
474		558
475	while (nreqs)	559	while (nreqs)
476	{	560	{
477	int size;	561	int size;
478	if (WORDACCESS_UNSAFE) LOCK (reslock);	562	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
479	size = res_queue.size;	563	size = res_queue.size;
480	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	564	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
481		565
482	if (size)	566	if (size)
483	return;	567	return;
484		568
485	maybe_start_thread ();	569	maybe_start_thread ();
486		570
487	FD_ZERO(&rfd);	571	FD_ZERO (&rfd);
488	FD_SET(respipe [0], &rfd);	572	FD_SET (respipe [0], &rfd);
489		573
490	select (respipe [0] + 1, &rfd, 0, 0, 0);	574	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
491	}	575	}
492	}	576	}
493		577
494	static int poll_cb ()	578	static int poll_cb ()
495	{	579	{
496	dSP;	580	dSP;
497	int count = 0;	581	int count = 0;
498	int maxreqs = max_poll_reqs;	582	int maxreqs = max_poll_reqs;
499	int do_croak = 0;	583	int do_croak = 0;
500	struct timeval tv_start, tv_now;	584	struct timeval tv_start, tv_now;
501	aio_req req;	585	bdb_req req;
502		586
503	if (max_poll_time)	587	if (max_poll_time)
504	gettimeofday (&tv_start, 0);	588	gettimeofday (&tv_start, 0);
505		589
506	for (;;)	590	for (;;)
507	{	591	{
508	for (;;)	592	for (;;)
509	{	593	{
510	maybe_start_thread ();	594	maybe_start_thread ();
511		595
512	LOCK (reslock);	596	X_LOCK (reslock);
513	req = reqq_shift (&res_queue);	597	req = reqq_shift (&res_queue);
514		598
515	if (req)	599	if (req)
516	{	600	{
517	--npending;	601	--npending;
518		602
519	if (!res_queue.size)	603	if (!res_queue.size)
520	{	604	{
521	/* read any signals sent by the worker threads */	605	/* read any signals sent by the worker threads */
522	char buf [4];	606	char buf [4];
523	while (read (respipe [0], buf, 4) == 4)	607	while (respipe_read (respipe [0], buf, 4) == 4)
524	;	608	;
525	}	609	}
526	}	610	}
527		611
528	UNLOCK (reslock);	612	X_UNLOCK (reslock);
529		613
530	if (!req)	614	if (!req)
531	break;	615	break;
532		616
533	--nreqs;	617	--nreqs;
…		…
563	}	647	}
564		648
565	return count;	649	return count;
566	}	650	}
567		651
568	static void create_pipe ()
569	{
570	if (pipe (respipe))
571	croak ("unable to initialize result pipe");
572
573	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
574	croak ("cannot set result pipe to nonblocking mode");
575
576	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
577	croak ("cannot set result pipe to nonblocking mode");
578	}
579
580	/*****************************************************************************/	652	/*****************************************************************************/
581		653
582	static void *aio_proc (void *thr_arg)	654	X_THREAD_PROC (bdb_proc)
583	{	655	{
584	aio_req req;	656	bdb_req req;
585	struct timespec ts;	657	struct timespec ts;
586	worker *self = (worker *)thr_arg;	658	worker *self = (worker *)thr_arg;
587		659
588	/* try to distribute timeouts somewhat evenly */	660	/* try to distribute timeouts somewhat evenly */
589	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	661	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
590	* (1000000000UL / 1024UL);
591		662
592	for (;;)	663	for (;;)
593	{	664	{
594	ts.tv_sec = time (0) + IDLE_TIMEOUT;	665	ts.tv_sec = time (0) + IDLE_TIMEOUT;
595		666
596	LOCK (reqlock);	667	X_LOCK (reqlock);
597		668
598	for (;;)	669	for (;;)
599	{	670	{
600	self->req = req = reqq_shift (&req_queue);	671	self->req = req = reqq_shift (&req_queue);
601		672
602	if (req)	673	if (req)
603	break;	674	break;
604		675
605	++idle;	676	++idle;
606		677
607	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	678	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
608	== ETIMEDOUT)	679	== ETIMEDOUT)
609	{	680	{
610	if (idle > max_idle)	681	if (idle > max_idle)
611	{	682	{
612	--idle;	683	--idle;
613	UNLOCK (reqlock);	684	X_UNLOCK (reqlock);
614	LOCK (wrklock);	685	X_LOCK (wrklock);
615	--started;	686	--started;
616	UNLOCK (wrklock);	687	X_UNLOCK (wrklock);
617	goto quit;	688	goto quit;
618	}	689	}
619		690
620	/* we are allowed to idle, so do so without any timeout */	691	/* we are allowed to idle, so do so without any timeout */
621	pthread_cond_wait (&reqwait, &reqlock);	692	X_COND_WAIT (reqwait, reqlock);
622	ts.tv_sec = time (0) + IDLE_TIMEOUT;	693	ts.tv_sec = time (0) + IDLE_TIMEOUT;
623	}	694	}
624		695
625	--idle;	696	--idle;
626	}	697	}
627		698
628	--nready;	699	--nready;
629		700
630	UNLOCK (reqlock);	701	X_UNLOCK (reqlock);
631		702
632	switch (req->type)	703	switch (req->type)
633	{	704	{
634	case REQ_QUIT:	705	case REQ_QUIT:
		706	req->result = ENOSYS;
635	goto quit;	707	goto quit;
636		708
637	case REQ_ENV_OPEN:	709	case REQ_ENV_OPEN:
638	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);	710	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
639	break;	711	break;
640		712
641	case REQ_ENV_CLOSE:	713	case REQ_ENV_CLOSE:
642	req->result = req->env->close (req->env, req->uint1);	714	req->result = req->env->close (req->env, req->uint1);
643	break;	715	break;
644		716
		717	case REQ_ENV_TXN_CHECKPOINT:
		718	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		719	break;
		720
		721	case REQ_ENV_LOCK_DETECT:
		722	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		723	break;
		724
		725	case REQ_ENV_MEMP_SYNC:
		726	req->result = req->env->memp_sync (req->env, 0);
		727	break;
		728
		729	case REQ_ENV_MEMP_TRICKLE:
		730	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		731	break;
		732
645	case REQ_DB_OPEN:	733	case REQ_DB_OPEN:
646	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);	734	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
647	break;	735	break;
648		736
649	case REQ_DB_CLOSE:	737	case REQ_DB_CLOSE:
…		…
656		744
657	case REQ_DB_SYNC:	745	case REQ_DB_SYNC:
658	req->result = req->db->sync (req->db, req->uint1);	746	req->result = req->db->sync (req->db, req->uint1);
659	break;	747	break;
660		748
		749	case REQ_DB_UPGRADE:
		750	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		751	break;
		752
661	case REQ_DB_PUT:	753	case REQ_DB_PUT:
662	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);	754	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
663	break;	755	break;
664		756
665	case REQ_DB_GET:	757	case REQ_DB_GET:
…		…
672		764
673	case REQ_DB_DEL:	765	case REQ_DB_DEL:
674	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);	766	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
675	break;	767	break;
676		768
		769	case REQ_DB_KEY_RANGE:
		770	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		771	break;
		772
677	case REQ_TXN_COMMIT:	773	case REQ_TXN_COMMIT:
678	req->result = req->txn->commit (req->txn, req->uint1);	774	req->result = req->txn->commit (req->txn, req->uint1);
679	break;	775	break;
680		776
681	case REQ_TXN_ABORT:	777	case REQ_TXN_ABORT:
682	req->result = req->txn->abort (req->txn);	778	req->result = req->txn->abort (req->txn);
		779	break;
		780
		781	case REQ_TXN_FINISH:
		782	if (req->txn->flags & TXN_DEADLOCK)
		783	{
		784	req->result = req->txn->abort (req->txn);
		785	if (!req->result)
		786	req->result = DB_LOCK_DEADLOCK;
		787	}
		788	else
		789	req->result = req->txn->commit (req->txn, req->uint1);
683	break;	790	break;
684		791
685	case REQ_C_CLOSE:	792	case REQ_C_CLOSE:
686	req->result = req->dbc->c_close (req->dbc);	793	req->result = req->dbc->c_close (req->dbc);
687	break;	794	break;
…		…
708		815
709	case REQ_C_DEL:	816	case REQ_C_DEL:
710	req->result = req->dbc->c_del (req->dbc, req->uint1);	817	req->result = req->dbc->c_del (req->dbc, req->uint1);
711	break;	818	break;
712		819
		820	case REQ_SEQ_OPEN:
		821	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		822	break;
		823
		824	case REQ_SEQ_CLOSE:
		825	req->result = req->seq->close (req->seq, req->uint1);
		826	break;
		827
		828	case REQ_SEQ_GET:
		829	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		830	break;
		831
		832	case REQ_SEQ_REMOVE:
		833	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		834	break;
		835
713	default:	836	default:
714	req->result = ENOSYS;	837	req->result = ENOSYS;
715	break;	838	break;
716	}	839	}
717		840
		841	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		842	req->txn->flags |= TXN_DEADLOCK;
		843
718	LOCK (reslock);	844	X_LOCK (reslock);
719		845
720	++npending;	846	++npending;
721		847
722	if (!reqq_push (&res_queue, req))	848	if (!reqq_push (&res_queue, req))
723	/* write a dummy byte to the pipe so fh becomes ready */	849	/* write a dummy byte to the pipe so fh becomes ready */
724	write (respipe [1], &respipe, 1);	850	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
725		851
726	self->req = 0;	852	self->req = 0;
727	worker_clear (self);	853	worker_clear (self);
728		854
729	UNLOCK (reslock);	855	X_UNLOCK (reslock);
730	}	856	}
731		857
732	quit:	858	quit:
733	LOCK (wrklock);	859	X_LOCK (wrklock);
734	worker_free (self);	860	worker_free (self);
735	UNLOCK (wrklock);	861	X_UNLOCK (wrklock);
736		862
737	return 0;	863	return 0;
738	}	864	}
739		865
740	/*****************************************************************************/	866	/*****************************************************************************/
741		867
742	static void atfork_prepare (void)	868	static void atfork_prepare (void)
743	{	869	{
744	LOCK (wrklock);	870	X_LOCK (wrklock);
745	LOCK (reqlock);	871	X_LOCK (reqlock);
746	LOCK (reslock);	872	X_LOCK (reslock);
747	}	873	}
748		874
749	static void atfork_parent (void)	875	static void atfork_parent (void)
750	{	876	{
751	UNLOCK (reslock);	877	X_UNLOCK (reslock);
752	UNLOCK (reqlock);	878	X_UNLOCK (reqlock);
753	UNLOCK (wrklock);	879	X_UNLOCK (wrklock);
754	}	880	}
755		881
756	static void atfork_child (void)	882	static void atfork_child (void)
757	{	883	{
758	aio_req prv;	884	bdb_req prv;
759		885
760	while (prv = reqq_shift (&req_queue))	886	while (prv = reqq_shift (&req_queue))
761	req_free (prv);	887	req_free (prv);
762		888
763	while (prv = reqq_shift (&res_queue))	889	while (prv = reqq_shift (&res_queue))
…		…
778	idle = 0;	904	idle = 0;
779	nreqs = 0;	905	nreqs = 0;
780	nready = 0;	906	nready = 0;
781	npending = 0;	907	npending = 0;
782		908
783	close (respipe [0]);
784	close (respipe [1]);
785	create_pipe ();	909	create_respipe ();
786		910
787	atfork_parent ();	911	atfork_parent ();
788	}	912	}
789		913
790	#define dREQ(reqtype) \	914	#define dREQ(reqtype) \
791	aio_req req; \	915	bdb_req req; \
792	int req_pri = next_pri; \	916	int req_pri = next_pri; \
793	next_pri = DEFAULT_PRI + PRI_BIAS; \	917	next_pri = DEFAULT_PRI + PRI_BIAS; \
794	\	918	\
795	if (SvOK (callback) && !SvROK (callback)) \	919	if (SvOK (callback) && !SvROK (callback)) \
796	croak ("callback must be undef or of reference type"); \	920	croak ("callback must be undef or of reference type"); \
797	\	921	\
798	Newz (0, req, 1, aio_cb); \	922	Newz (0, req, 1, bdb_cb); \
799	if (!req) \	923	if (!req) \
800	croak ("out of memory during aio_req allocation"); \	924	croak ("out of memory during bdb_req allocation"); \
801	\	925	\
802	req->callback = newSVsv (callback); \	926	req->callback = newSVsv (callback); \
803	req->type = (reqtype); \	927	req->type = (reqtype); \
804	req->pri = req_pri	928	req->pri = req_pri
805		929
806	#define REQ_SEND \	930	#define REQ_SEND \
807	req_send (req)	931	req_send (req)
808		932
809	#define SvPTR(var, arg, type, class, nullok) \	933	#define SvPTR(var, arg, type, class, nullok) \
810	if (!SvOK (arg)) \	934	if (!SvOK (arg)) \
811	{ \	935	{ \
812	if (!nullok) \	936	if (nullok != 1) \
813	Perl_croak (# var " must be a " # class " object, not undef"); \	937	croak (# var " must be a " # class " object, not undef"); \
814	\	938	\
815	(var) = 0; \	939	(var) = 0; \
816	} \	940	} \
817	else if (sv_derived_from ((arg), # class)) \	941	else if (sv_derived_from ((arg), # class)) \
818	{ \	942	{ \
819	IV tmp = SvIV ((SV*) SvRV (arg)); \	943	IV tmp = SvIV ((SV*) SvRV (arg)); \
820	(var) = INT2PTR (type, tmp); \	944	(var) = INT2PTR (type, tmp); \
821	if (!var) \	945	if (!var && nullok != 2) \
822	Perl_croak (# var " is not a valid " # class " object anymore"); \	946	croak (# var " is not a valid " # class " object anymore"); \
823	} \	947	} \
824	else \	948	else \
825	Perl_croak (# var " is not of type " # class); \	949	croak (# var " is not of type " # class); \
826	\	950	\
827		951
828	static void	952	static void
829	ptr_nuke (SV *sv)	953	ptr_nuke (SV *sv)
830	{	954	{
831	assert (SvROK (sv));	955	assert (SvROK (sv));
832	sv_setiv (SvRV (sv), 0);	956	sv_setiv (SvRV (sv), 0);
		957	}
		958
		959	static int
		960	errno_get (pTHX_ SV *sv, MAGIC *mg)
		961	{
		962	if (*mg->mg_ptr == '!') // should always be the case
		963	if (-30999 <= errno && errno <= -30800)
		964	{
		965	sv_setpv (sv, db_strerror (errno));
		966	return 0;
		967	}
		968
		969	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		970	}
		971
		972	static MGVTBL vtbl_errno;
		973
		974	// this wonderful hack :( patches perl's $! variable to support our errno values
		975	static void
		976	patch_errno (void)
		977	{
		978	SV *sv;
		979	MAGIC *mg;
		980
		981	if (!(sv = get_sv ("!", 1)))
		982	return;
		983
		984	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		985	return;
		986
		987	if (mg->mg_virtual != &PL_vtbl_sv)
		988	return;
		989
		990	vtbl_errno = PL_vtbl_sv;
		991	vtbl_errno.svt_get = errno_get;
		992	mg->mg_virtual = &vtbl_errno;
833	}	993	}
834		994
835	MODULE = BDB PACKAGE = BDB	995	MODULE = BDB PACKAGE = BDB
836		996
837	PROTOTYPES: ENABLE	997	PROTOTYPES: ENABLE
…		…
854	const_iv (INIT_TXN)	1014	const_iv (INIT_TXN)
855	const_iv (RECOVER)	1015	const_iv (RECOVER)
856	const_iv (INIT_TXN)	1016	const_iv (INIT_TXN)
857	const_iv (RECOVER_FATAL)	1017	const_iv (RECOVER_FATAL)
858	const_iv (CREATE)	1018	const_iv (CREATE)
		1019	const_iv (RDONLY)
859	const_iv (USE_ENVIRON)	1020	const_iv (USE_ENVIRON)
860	const_iv (USE_ENVIRON_ROOT)	1021	const_iv (USE_ENVIRON_ROOT)
861	const_iv (LOCKDOWN)	1022	const_iv (LOCKDOWN)
862	const_iv (PRIVATE)	1023	const_iv (PRIVATE)
863	const_iv (REGISTER)	1024	const_iv (REGISTER)
…		…
869	const_iv (DSYNC_DB)	1030	const_iv (DSYNC_DB)
870	const_iv (DSYNC_LOG)	1031	const_iv (DSYNC_LOG)
871	const_iv (LOG_AUTOREMOVE)	1032	const_iv (LOG_AUTOREMOVE)
872	const_iv (LOG_INMEMORY)	1033	const_iv (LOG_INMEMORY)
873	const_iv (NOLOCKING)	1034	const_iv (NOLOCKING)
874	const_iv (MULTIVERSION)
875	const_iv (NOMMAP)	1035	const_iv (NOMMAP)
876	const_iv (NOPANIC)	1036	const_iv (NOPANIC)
877	const_iv (OVERWRITE)	1037	const_iv (OVERWRITE)
878	const_iv (PANIC_ENVIRONMENT)	1038	const_iv (PANIC_ENVIRONMENT)
879	const_iv (REGION_INIT)	1039	const_iv (REGION_INIT)
880	const_iv (TIME_NOTGRANTED)	1040	const_iv (TIME_NOTGRANTED)
881	const_iv (TXN_NOSYNC)	1041	const_iv (TXN_NOSYNC)
882	const_iv (TXN_SNAPSHOT)	1042	const_iv (TXN_NOT_DURABLE)
883	const_iv (TXN_WRITE_NOSYNC)	1043	const_iv (TXN_WRITE_NOSYNC)
884	const_iv (WRITECURSOR)	1044	const_iv (WRITECURSOR)
885	const_iv (YIELDCPU)	1045	const_iv (YIELDCPU)
886	const_iv (ENCRYPT_AES)	1046	const_iv (ENCRYPT_AES)
887	const_iv (XA_CREATE)	1047	const_iv (XA_CREATE)
…		…
895	const_iv (READ_UNCOMMITTED)	1055	const_iv (READ_UNCOMMITTED)
896	const_iv (TRUNCATE)	1056	const_iv (TRUNCATE)
897	const_iv (NOSYNC)	1057	const_iv (NOSYNC)
898	const_iv (CHKSUM)	1058	const_iv (CHKSUM)
899	const_iv (ENCRYPT)	1059	const_iv (ENCRYPT)
900	const_iv (TXN_NOT_DURABLE)
901	const_iv (DUP)	1060	const_iv (DUP)
902	const_iv (DUPSORT)	1061	const_iv (DUPSORT)
903	const_iv (RECNUM)	1062	const_iv (RECNUM)
904	const_iv (RENUMBER)	1063	const_iv (RENUMBER)
905	const_iv (REVSPLITOFF)	1064	const_iv (REVSPLITOFF)
…		…
910	const_iv (GET_BOTH_RANGE)	1069	const_iv (GET_BOTH_RANGE)
911	//const_iv (SET_RECNO)	1070	//const_iv (SET_RECNO)
912	//const_iv (MULTIPLE)	1071	//const_iv (MULTIPLE)
913	const_iv (SNAPSHOT)	1072	const_iv (SNAPSHOT)
914	const_iv (JOIN_ITEM)	1073	const_iv (JOIN_ITEM)
		1074	const_iv (JOIN_NOSORT)
915	const_iv (RMW)	1075	const_iv (RMW)
916		1076
917	const_iv (NOTFOUND)	1077	const_iv (NOTFOUND)
918	const_iv (KEYEMPTY)	1078	const_iv (KEYEMPTY)
919	const_iv (LOCK_DEADLOCK)	1079	const_iv (LOCK_DEADLOCK)
…		…
930	const_iv (APPEND)	1090	const_iv (APPEND)
931	const_iv (NODUPDATA)	1091	const_iv (NODUPDATA)
932	const_iv (NOOVERWRITE)	1092	const_iv (NOOVERWRITE)
933		1093
934	const_iv (TXN_NOWAIT)	1094	const_iv (TXN_NOWAIT)
935	const_iv (TXN_SNAPSHOT)
936	const_iv (TXN_SYNC)	1095	const_iv (TXN_SYNC)
937		1096
938	const_iv (SET_LOCK_TIMEOUT)	1097	const_iv (SET_LOCK_TIMEOUT)
939	const_iv (SET_TXN_TIMEOUT)	1098	const_iv (SET_TXN_TIMEOUT)
940		1099
941	const_iv (JOIN_ITEM)
942	const_iv (FIRST)	1100	const_iv (FIRST)
943	const_iv (NEXT)	1101	const_iv (NEXT)
944	const_iv (NEXT_DUP)	1102	const_iv (NEXT_DUP)
945	const_iv (NEXT_NODUP)	1103	const_iv (NEXT_NODUP)
946	const_iv (PREV)	1104	const_iv (PREV)
…		…
952	const_iv (AFTER)	1110	const_iv (AFTER)
953	const_iv (CURRENT)	1111	const_iv (CURRENT)
954	const_iv (KEYFIRST)	1112	const_iv (KEYFIRST)
955	const_iv (KEYLAST)	1113	const_iv (KEYLAST)
956	const_iv (NODUPDATA)	1114	const_iv (NODUPDATA)
		1115
		1116	const_iv (FORCE)
		1117
		1118	const_iv (LOCK_DEFAULT)
		1119	const_iv (LOCK_EXPIRE)
		1120	const_iv (LOCK_MAXLOCKS)
		1121	const_iv (LOCK_MAXWRITE)
		1122	const_iv (LOCK_MINLOCKS)
		1123	const_iv (LOCK_MINWRITE)
		1124	const_iv (LOCK_OLDEST)
		1125	const_iv (LOCK_RANDOM)
		1126	const_iv (LOCK_YOUNGEST)
		1127
		1128	const_iv (SEQ_DEC)
		1129	const_iv (SEQ_INC)
		1130	const_iv (SEQ_WRAP)
		1131
		1132	const_iv (BUFFER_SMALL)
		1133	const_iv (DONOTINDEX)
		1134	const_iv (KEYEMPTY )
		1135	const_iv (KEYEXIST )
		1136	const_iv (LOCK_DEADLOCK)
		1137	const_iv (LOCK_NOTGRANTED)
		1138	const_iv (LOG_BUFFER_FULL)
		1139	const_iv (NOSERVER)
		1140	const_iv (NOSERVER_HOME)
		1141	const_iv (NOSERVER_ID)
		1142	const_iv (NOTFOUND)
		1143	const_iv (PAGE_NOTFOUND)
		1144	const_iv (REP_DUPMASTER)
		1145	const_iv (REP_HANDLE_DEAD)
		1146	const_iv (REP_HOLDELECTION)
		1147	const_iv (REP_IGNORE)
		1148	const_iv (REP_ISPERM)
		1149	const_iv (REP_JOIN_FAILURE)
		1150	const_iv (REP_LOCKOUT)
		1151	const_iv (REP_NEWMASTER)
		1152	const_iv (REP_NEWSITE)
		1153	const_iv (REP_NOTPERM)
		1154	const_iv (REP_UNAVAIL)
		1155	const_iv (RUNRECOVERY)
		1156	const_iv (SECONDARY_BAD)
		1157	const_iv (VERIFY_BAD)
		1158	const_iv (VERSION_MISMATCH)
		1159
		1160	const_iv (VERB_DEADLOCK)
		1161	const_iv (VERB_RECOVERY)
		1162	const_iv (VERB_REGISTER)
		1163	const_iv (VERB_REPLICATION)
		1164	const_iv (VERB_WAITSFOR)
		1165
		1166	const_iv (VERSION_MAJOR)
		1167	const_iv (VERSION_MINOR)
		1168	const_iv (VERSION_PATCH)
		1169	#if DB_VERSION_MINOR >= 5
		1170	const_iv (MULTIVERSION)
		1171	const_iv (TXN_SNAPSHOT)
		1172	#endif
		1173	#if DB_VERSION_MINOR >= 6
		1174	const_iv (PREV_DUP)
		1175	const_iv (PRIORITY_UNCHANGED)
		1176	const_iv (PRIORITY_VERY_LOW)
		1177	const_iv (PRIORITY_LOW)
		1178	const_iv (PRIORITY_DEFAULT)
		1179	const_iv (PRIORITY_HIGH)
		1180	const_iv (PRIORITY_VERY_HIGH)
		1181	#endif
957	};	1182	};
958		1183
959	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1184	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
960	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1185	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
961		1186
962	create_pipe ();	1187	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1188	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1189
		1190	create_respipe ();
		1191
963	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1192	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1193	#ifdef _WIN32
		1194	X_MUTEX_CHECK (wrklock);
		1195	X_MUTEX_CHECK (reslock);
		1196	X_MUTEX_CHECK (reqlock);
		1197
		1198	X_COND_CHECK (reqwait);
		1199	#endif
		1200	patch_errno ();
964	}	1201	}
965		1202
966	void	1203	void
967	max_poll_reqs (int nreqs)	1204	max_poll_reqs (int nreqs)
968	PROTOTYPE: $	1205	PROTOTYPE: $
…		…
1087		1324
1088	int	1325	int
1089	nthreads ()	1326	nthreads ()
1090	PROTOTYPE:	1327	PROTOTYPE:
1091	CODE:	1328	CODE:
1092	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1329	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1093	RETVAL = started;	1330	RETVAL = started;
1094	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1331	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1095	OUTPUT:	1332	OUTPUT:
1096	RETVAL	1333	RETVAL
1097		1334
1098	void	1335	void
1099	set_sync_prepare (SV *cb)	1336	set_sync_prepare (SV *cb)
1100	PROTOTYPE: &	1337	PROTOTYPE: &
1101	CODE:	1338	CODE:
1102	SvREFCNT_dec (prepare_cb);	1339	SvREFCNT_dec (prepare_cb);
1103	prepare_cb = newSVsv (cb);	1340	prepare_cb = newSVsv (cb);
		1341
		1342	char *
		1343	strerror (int errorno = errno)
		1344	PROTOTYPE: ;$
		1345	CODE:
		1346	RETVAL = db_strerror (errorno);
		1347	OUTPUT:
		1348	RETVAL
1104		1349
1105	DB_ENV *	1350	DB_ENV *
1106	db_env_create (U32 env_flags = 0)	1351	db_env_create (U32 env_flags = 0)
1107	CODE:	1352	CODE:
1108	{	1353	{
1109	errno = db_env_create (&RETVAL, env_flags);	1354	errno = db_env_create (&RETVAL, env_flags);
1110	if (errno)	1355	if (errno)
1111	croak ("db_env_create: %s", db_strerror (errno));	1356	croak ("db_env_create: %s", db_strerror (errno));
		1357
		1358	if (0)
		1359	{
		1360	RETVAL->set_errcall (RETVAL, debug_errcall);
		1361	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1362	}
1112	}	1363	}
1113	OUTPUT:	1364	OUTPUT:
1114	RETVAL	1365	RETVAL
1115		1366
1116	void	1367	void
1117	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1368	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1118	CODE:	1369	CODE:
1119	{	1370	{
1120	dREQ (REQ_ENV_OPEN);	1371	dREQ (REQ_ENV_OPEN);
		1372
1121	req->env = env;	1373	req->env = env;
1122	req->uint1 = open_flags | DB_THREAD;	1374	req->uint1 = open_flags | DB_THREAD;
1123	req->int1 = mode;	1375	req->int1 = mode;
1124	req->buf1 = strdup_ornull (db_home);	1376	req->buf1 = strdup_ornull (db_home);
1125	REQ_SEND;	1377	REQ_SEND;
…		…
1133	req->env = env;	1385	req->env = env;
1134	req->uint1 = flags;	1386	req->uint1 = flags;
1135	REQ_SEND;	1387	REQ_SEND;
1136	ptr_nuke (ST (0));	1388	ptr_nuke (ST (0));
1137	}	1389	}
		1390
		1391	void
		1392	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1393	CODE:
		1394	{
		1395	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1396	req->env = env;
		1397	req->uint1 = kbyte;
		1398	req->int1 = min;
		1399	req->uint2 = flags;
		1400	REQ_SEND;
		1401	}
		1402
		1403	void
		1404	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1405	CODE:
		1406	{
		1407	dREQ (REQ_ENV_LOCK_DETECT);
		1408	req->env = env;
		1409	req->uint1 = flags;
		1410	req->uint2 = atype;
		1411	REQ_SEND;
		1412	}
		1413
		1414	void
		1415	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1416	CODE:
		1417	{
		1418	dREQ (REQ_ENV_MEMP_SYNC);
		1419	req->env = env;
		1420	REQ_SEND;
		1421	}
		1422
		1423	void
		1424	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1425	CODE:
		1426	{
		1427	dREQ (REQ_ENV_MEMP_TRICKLE);
		1428	req->env = env;
		1429	req->int1 = percent;
		1430	REQ_SEND;
		1431	}
		1432
1138		1433
1139	DB *	1434	DB *
1140	db_create (DB_ENV *env = 0, U32 flags = 0)	1435	db_create (DB_ENV *env = 0, U32 flags = 0)
1141	CODE:	1436	CODE:
1142	{	1437	{
…		…
1199	req->uint1 = flags;	1494	req->uint1 = flags;
1200	REQ_SEND;	1495	REQ_SEND;
1201	}	1496	}
1202		1497
1203	void	1498	void
		1499	db_upgrade (DB *db, octetstring file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1500	CODE:
		1501	{
		1502	dREQ (REQ_DB_SYNC);
		1503	req->db = db;
		1504	req->buf1 = strdup (file);
		1505	req->uint1 = flags;
		1506	REQ_SEND;
		1507	}
		1508
		1509	void
		1510	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1511	CODE:
		1512	{
		1513	dREQ (REQ_DB_KEY_RANGE);
		1514	req->db = db;
		1515	req->txn = txn;
		1516	sv_to_dbt (&req->dbt1, key);
		1517	req->uint1 = flags;
		1518	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1519	REQ_SEND;
		1520	}
		1521
		1522	void
1204	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1523	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1205	CODE:	1524	CODE:
1206	{	1525	{
1207	dREQ (REQ_DB_PUT);	1526	dREQ (REQ_DB_PUT);
1208	req->db = db;	1527	req->db = db;
…		…
1214	}	1533	}
1215		1534
1216	void	1535	void
1217	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1536	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1218	CODE:	1537	CODE:
		1538	if (SvREADONLY (data))
		1539	croak ("can't modify read-only data scalar in db_get");
1219	{	1540	{
1220	dREQ (REQ_DB_GET);	1541	dREQ (REQ_DB_GET);
1221	req->db = db;	1542	req->db = db;
1222	req->txn = txn;	1543	req->txn = txn;
1223	req->uint1 = flags;	1544	req->uint1 = flags;
…		…
1228	}	1549	}
1229		1550
1230	void	1551	void
1231	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1552	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1232	CODE:	1553	CODE:
		1554	if (SvREADONLY (data))
		1555	croak ("can't modify read-only data scalar in db_pget");
1233	{	1556	{
1234	dREQ (REQ_DB_PGET);	1557	dREQ (REQ_DB_PGET);
1235	req->db = db;	1558	req->db = db;
1236	req->txn = txn;	1559	req->txn = txn;
1237	req->uint1 = flags;	1560	req->uint1 = flags;
…		…
1274	REQ_SEND;	1597	REQ_SEND;
1275	ptr_nuke (ST (0));	1598	ptr_nuke (ST (0));
1276	}	1599	}
1277		1600
1278	void	1601	void
		1602	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1603	CODE:
		1604	{
		1605	dREQ (REQ_TXN_FINISH);
		1606	req->txn = txn;
		1607	req->uint1 = flags;
		1608	REQ_SEND;
		1609	ptr_nuke (ST (0));
		1610	}
		1611
		1612	void
1279	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)	1613	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1280	CODE:	1614	CODE:
1281	{	1615	{
1282	dREQ (REQ_C_CLOSE);	1616	dREQ (REQ_C_CLOSE);
1283	req->dbc = dbc;	1617	req->dbc = dbc;
…		…
1369	req->uint1 = flags;	1703	req->uint1 = flags;
1370	REQ_SEND;	1704	REQ_SEND;
1371	}	1705	}
1372		1706
1373		1707
		1708	void
		1709	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1710	CODE:
		1711	{
		1712	dREQ (REQ_SEQ_OPEN);
		1713	req->seq = seq;
		1714	req->txn = txnid;
		1715	req->uint1 = flags | DB_THREAD;
		1716	sv_to_dbt (&req->dbt1, key);
		1717	REQ_SEND;
		1718	}
		1719
		1720	void
		1721	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1722	CODE:
		1723	{
		1724	dREQ (REQ_SEQ_CLOSE);
		1725	req->seq = seq;
		1726	req->uint1 = flags;
		1727	REQ_SEND;
		1728	ptr_nuke (ST (0));
		1729	}
		1730
		1731	void
		1732	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
		1733	CODE:
		1734	{
		1735	dREQ (REQ_SEQ_GET);
		1736	req->seq = seq;
		1737	req->txn = txnid;
		1738	req->int1 = delta;
		1739	req->uint1 = flags;
		1740	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1741	REQ_SEND;
		1742	}
		1743
		1744	void
		1745	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1746	CODE:
		1747	{
		1748	dREQ (REQ_SEQ_REMOVE);
		1749	req->seq = seq;
		1750	req->txn = txnid;
		1751	req->uint1 = flags;
		1752	REQ_SEND;
		1753	}
		1754
		1755
1374	MODULE = BDB PACKAGE = BDB::Env	1756	MODULE = BDB PACKAGE = BDB::Env
1375		1757
1376	void	1758	void
1377	DESTROY (DB_ENV_ornull *env)	1759	DESTROY (DB_ENV_ornuked *env)
1378	CODE:	1760	CODE:
1379	if (env)	1761	if (env)
1380	env->close (env, 0);	1762	env->close (env, 0);
1381		1763
		1764	int set_data_dir (DB_ENV *env, const char *dir)
		1765	CODE:
		1766	RETVAL = env->set_data_dir (env, dir);
		1767	OUTPUT:
		1768	RETVAL
		1769
		1770	int set_tmp_dir (DB_ENV *env, const char *dir)
		1771	CODE:
		1772	RETVAL = env->set_tmp_dir (env, dir);
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int set_lg_dir (DB_ENV *env, const char *dir)
		1777	CODE:
		1778	RETVAL = env->set_lg_dir (env, dir);
		1779	OUTPUT:
		1780	RETVAL
		1781
		1782	int set_shm_key (DB_ENV *env, long shm_key)
		1783	CODE:
		1784	RETVAL = env->set_shm_key (env, shm_key);
		1785	OUTPUT:
		1786	RETVAL
		1787
1382	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1788	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1383	CODE:	1789	CODE:
1384	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	1790	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1385	OUTPUT:	1791	OUTPUT:
1386	RETVAL	1792	RETVAL
1387		1793
1388	int set_flags (DB_ENV *env, U32 flags, int onoff)	1794	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1389	CODE:	1795	CODE:
1390	RETVAL = env->set_flags (env, flags, onoff);	1796	RETVAL = env->set_flags (env, flags, onoff);
1391	OUTPUT:	1797	OUTPUT:
1392	RETVAL	1798	RETVAL
1393		1799
		1800	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1801	CODE:
		1802	env->set_errfile (env, errfile);
		1803
		1804	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1805	CODE:
		1806	env->set_msgfile (env, msgfile);
		1807
		1808	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1809	CODE:
		1810	RETVAL = env->set_verbose (env, which, onoff);
		1811	OUTPUT:
		1812	RETVAL
		1813
1394	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	1814	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1395	CODE:	1815	CODE:
1396	RETVAL = env->set_encrypt (env, password, flags);	1816	RETVAL = env->set_encrypt (env, password, flags);
1397	OUTPUT:	1817	OUTPUT:
1398	RETVAL	1818	RETVAL
1399		1819
1400	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	1820	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1401	CODE:	1821	CODE:
1402	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	1822	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1403	OUTPUT:	1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1827	CODE:
		1828	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1833	CODE:
		1834	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1839	CODE:
		1840	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1841	OUTPUT:
		1842	RETVAL
		1843
		1844	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1845	CODE:
		1846	RETVAL = env->set_lk_detect (env, detect);
		1847	OUTPUT:
		1848	RETVAL
		1849
		1850	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1851	CODE:
		1852	RETVAL = env->set_lk_max_lockers (env, max);
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int set_lk_max_locks (DB_ENV *env, U32 max)
		1857	CODE:
		1858	RETVAL = env->set_lk_max_locks (env, max);
		1859	OUTPUT:
		1860	RETVAL
		1861
		1862	int set_lk_max_objects (DB_ENV *env, U32 max)
		1863	CODE:
		1864	RETVAL = env->set_lk_max_objects (env, max);
		1865	OUTPUT:
		1866	RETVAL
		1867
		1868	int set_lg_bsize (DB_ENV *env, U32 max)
		1869	CODE:
		1870	RETVAL = env->set_lg_bsize (env, max);
		1871	OUTPUT:
		1872	RETVAL
		1873
		1874	int set_lg_max (DB_ENV *env, U32 max)
		1875	CODE:
		1876	RETVAL = env->set_lg_max (env, max);
		1877	OUTPUT:
		1878	RETVAL
		1879
		1880	int mutex_set_max (DB_ENV *env, U32 max)
		1881	CODE:
		1882	RETVAL = env->mutex_set_max (env, max);
		1883	OUTPUT:
		1884	RETVAL
		1885
		1886	int mutex_set_increment (DB_ENV *env, U32 increment)
		1887	CODE:
		1888	RETVAL = env->mutex_set_increment (env, increment);
		1889	OUTPUT:
		1890	RETVAL
		1891
		1892	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1893	CODE:
		1894	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1895	OUTPUT:
		1896	RETVAL
		1897
		1898	int mutex_set_align (DB_ENV *env, U32 align)
		1899	CODE:
		1900	RETVAL = env->mutex_set_align (env, align);
		1901	OUTPUT:
1404	RETVAL	1902	RETVAL
1405		1903
1406	DB_TXN *	1904	DB_TXN *
1407	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)	1905	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1408	CODE:	1906	CODE:
…		…
1413	RETVAL	1911	RETVAL
1414		1912
1415	MODULE = BDB PACKAGE = BDB::Db	1913	MODULE = BDB PACKAGE = BDB::Db
1416		1914
1417	void	1915	void
1418	DESTROY (DB_ornull *db)	1916	DESTROY (DB_ornuked *db)
1419	CODE:	1917	CODE:
1420	if (db)	1918	if (db)
1421	{	1919	{
1422	SV *env = (SV *)db->app_private;	1920	SV *env = (SV *)db->app_private;
1423	db->close (db, 0);	1921	db->close (db, 0);
…		…
1428	CODE:	1926	CODE:
1429	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	1927	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1430	OUTPUT:	1928	OUTPUT:
1431	RETVAL	1929	RETVAL
1432		1930
1433	int set_flags (DB *db, U32 flags);	1931	int set_flags (DB *db, U32 flags)
1434	CODE:	1932	CODE:
1435	RETVAL = db->set_flags (db, flags);	1933	RETVAL = db->set_flags (db, flags);
1436	OUTPUT:	1934	OUTPUT:
1437	RETVAL	1935	RETVAL
1438		1936
…		…
1446	CODE:	1944	CODE:
1447	RETVAL = db->set_lorder (db, lorder);	1945	RETVAL = db->set_lorder (db, lorder);
1448	OUTPUT:	1946	OUTPUT:
1449	RETVAL	1947	RETVAL
1450		1948
1451
1452	int set_bt_minkey (DB *db, U32 minkey)	1949	int set_bt_minkey (DB *db, U32 minkey)
1453	CODE:	1950	CODE:
1454	RETVAL = db->set_bt_minkey (db, minkey);	1951	RETVAL = db->set_bt_minkey (db, minkey);
1455	OUTPUT:	1952	OUTPUT:
1456	RETVAL	1953	RETVAL
1457		1954
1458	int set_re_delim(DB *db, int delim);	1955	int set_re_delim (DB *db, int delim)
1459	CODE:	1956	CODE:
1460	RETVAL = db->set_re_delim (db, delim);	1957	RETVAL = db->set_re_delim (db, delim);
1461	OUTPUT:	1958	OUTPUT:
1462	RETVAL	1959	RETVAL
1463		1960
…		…
1504	if (errno)	2001	if (errno)
1505	croak ("DB->cursor: %s", db_strerror (errno));	2002	croak ("DB->cursor: %s", db_strerror (errno));
1506	OUTPUT:	2003	OUTPUT:
1507	RETVAL	2004	RETVAL
1508		2005
		2006	DB_SEQUENCE *
		2007	sequence (DB *db, U32 flags = 0)
		2008	CODE:
		2009	{
		2010	errno = db_sequence_create (&RETVAL, db, flags);
		2011	if (errno)
		2012	croak ("db_sequence_create: %s", db_strerror (errno));
		2013	}
		2014	OUTPUT:
		2015	RETVAL
		2016
1509		2017
1510	MODULE = BDB PACKAGE = BDB::Txn	2018	MODULE = BDB PACKAGE = BDB::Txn
1511		2019
1512	void	2020	void
1513	DESTROY (DB_TXN_ornull *txn)	2021	DESTROY (DB_TXN_ornuked *txn)
1514	CODE:	2022	CODE:
1515	if (txn)	2023	if (txn)
1516	txn->abort (txn);	2024	txn->abort (txn);
1517		2025
1518	int set_timeout (DB_TXN *txn, NV timeout, U32 flags)	2026	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1519	CODE:	2027	CODE:
1520	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);	2028	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1521	OUTPUT:	2029	OUTPUT:
1522	RETVAL	2030	RETVAL
1523		2031
		2032	int failed (DB_TXN *txn)
		2033	CODE:
		2034	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2035	OUTPUT:
		2036	RETVAL
		2037
1524		2038
1525	MODULE = BDB PACKAGE = BDB::Cursor	2039	MODULE = BDB PACKAGE = BDB::Cursor
1526		2040
1527	void	2041	void
1528	DESTROY (DBC_ornull *dbc)	2042	DESTROY (DBC_ornuked *dbc)
1529	CODE:	2043	CODE:
1530	if (dbc)	2044	if (dbc)
1531	dbc->c_close (dbc);	2045	dbc->c_close (dbc);
1532		2046
		2047	#if DB_VERSION_MINOR >= 6
		2048
		2049	int set_priority (DBC *dbc, int priority)
		2050	CODE:
		2051	dbc->set_priority (dbc, priority);
		2052
		2053	#endif
		2054
		2055	MODULE = BDB PACKAGE = BDB::Sequence
		2056
		2057	void
		2058	DESTROY (DB_SEQUENCE_ornuked *seq)
		2059	CODE:
		2060	if (seq)
		2061	seq->close (seq, 0);
		2062
		2063	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2064	CODE:
		2065	RETVAL = seq->initial_value (seq, value);
		2066	OUTPUT:
		2067	RETVAL
		2068
		2069	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2070	CODE:
		2071	RETVAL = seq->set_cachesize (seq, size);
		2072	OUTPUT:
		2073	RETVAL
		2074
		2075	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2076	CODE:
		2077	RETVAL = seq->set_flags (seq, flags);
		2078	OUTPUT:
		2079	RETVAL
		2080
		2081	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2082	CODE:
		2083	RETVAL = seq->set_range (seq, min, max);
		2084	OUTPUT:
		2085	RETVAL
		2086
		2087

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