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Comparing BDB/BDB.xs (file contents):
Revision 1.3 by root, Mon Feb 5 22:19:07 2007 UTC vs.
Revision 1.69 by root, Wed Jul 15 14:40:00 2009 UTC

1	/* solaris */	1	#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2	#define _POSIX_PTHREAD_SEMANTICS 1
3		2
4	#if __linux && !defined(_GNU_SOURCE)	3	#include "xthread.h"
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		4
11	#include <errno.h>	5	#include <errno.h>
12		6
13	#include "EXTERN.h"	7	#include "EXTERN.h"
14	#include "perl.h"	8	#include "perl.h"
15	#include "XSUB.h"	9	#include "XSUB.h"
16		10
17	#include <pthread.h>	11	#include "schmorp.h"
		12
		13	// perl stupidly defines these as argument-less macros, breaking
		14	// lots and lots of code.
		15	#undef open
		16	#undef close
		17	#undef abort
		18	#undef malloc
		19	#undef free
		20	#undef send
18		21
19	#include <stddef.h>	22	#include <stddef.h>
20	#include <stdlib.h>	23	#include <stdlib.h>
21	#include <errno.h>	24	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	25	#include <sys/types.h>
24	#include <limits.h>	26	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	27	#include <fcntl.h>
27		28
		29	#ifndef _WIN32
		30	# include <sys/time.h>
		31	# include <unistd.h>
		32	#endif
		33
28	#include <db.h>	34	#include <db.h>
		35
		36	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		37	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		38	#endif
29		39
30	/* number of seconds after which idle threads exit */	40	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	41	#define IDLE_TIMEOUT 10
32		42
33	/* wether word reads are potentially non-atomic.	43	typedef SV SV_mutable;
34	* this is conservatice, likely most arches this runs	44
35	* on have atomic word read/writes.	45	typedef DB_ENV DB_ENV_ornull;
36	*/	46	typedef DB_TXN DB_TXN_ornull;
37	#ifndef WORDACCESS_UNSAFE	47	typedef DBC DBC_ornull;
38	# if __i386 || __x86_64	48	typedef DB DB_ornull;
39	# define WORDACCESS_UNSAFE 0	49
40	# else	50	typedef DB_ENV DB_ENV_ornuked;
41	# define WORDACCESS_UNSAFE 1	51	typedef DB_TXN DB_TXN_ornuked;
		52	typedef DBC DBC_ornuked;
		53	typedef DB DB_ornuked;
		54
		55	#if DB_VERSION_MINOR >= 3
		56	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		57	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
42	# endif	58	#endif
43	#endif
44		59
45	typedef SV SV8; /* byte-sv, used for argument-checking */	60	typedef char *bdb_filename;
46	typedef char *octetstring;
47		61
48	static SV *prepare_cb;	62	static SV *prepare_cb;
49		63
		64	#if DB_VERSION_MINOR >= 6
		65	# define c_close close
		66	# define c_count count
		67	# define c_del del
		68	# define c_dup dup
		69	# define c_get get
		70	# define c_pget pget
		71	# define c_put put
		72	#endif
		73
50	static inline char *	74	static char *
		75	get_bdb_filename (SV *sv)
		76	{
		77	if (!SvOK (sv))
		78	return 0;
		79
		80	#if _WIN32
		81	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		82	{
		83	STRLEN len;
		84	char *src = SvPVbyte (sv, len);
		85	SV *t1 = sv_newmortal ();
		86	SV *t2 = sv_newmortal ();
		87
		88	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		89	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		90
		91	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		92	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		93	SvPOK_only (t2);
		94	SvPVX (t2)[len] = 0;
		95	SvCUR_set (t2, len);
		96
		97	return SvPVX (t2);
		98	}
		99	#else
		100	return SvPVbyte_nolen (sv);
		101	#endif
		102	}
		103
		104	static void
		105	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		106	{
		107	printf ("err[%s]\n", msg);
		108	}
		109
		110	static void
		111	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		112	{
		113	printf ("msg[%s]\n", msg);
		114	}
		115
		116	static char *
51	strdup_ornull (const char *s)	117	strdup_ornull (const char *s)
52	{	118	{
53	return s ? strdup (s) : 0;	119	return s ? strdup (s) : 0;
54	}	120	}
55		121
		122	static void
		123	sv_to_dbt (DBT *dbt, SV *sv)
		124	{
		125	STRLEN len;
		126	char *data = SvPVbyte (sv, len);
		127
		128	dbt->data = malloc (len);
		129	memcpy (dbt->data, data, len);
		130	dbt->size = len;
		131	dbt->flags = DB_DBT_REALLOC;
		132	}
		133
		134	static void
		135	dbt_to_sv (SV *sv, DBT *dbt)
		136	{
		137	if (sv)
		138	{
		139	SvREADONLY_off (sv);
		140
		141	if (dbt->data)
		142	sv_setpvn_mg (sv, dbt->data, dbt->size);
		143	else
		144	sv_setsv_mg (sv, &PL_sv_undef);
		145
		146	SvREFCNT_dec (sv);
		147	}
		148
		149	free (dbt->data);
		150	}
		151
56	enum {	152	enum {
57	REQ_QUIT,	153	REQ_QUIT,
58	REQ_ENV_OPEN, REQ_ENV_CLOSE,	154	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		155	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		156	REQ_ENV_LOG_ARCHIVE,
59	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT,	157	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_VERIFY, REQ_DB_UPGRADE,
		158	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		159	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		160	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		161	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
60	};	162	};
61		163
62	typedef struct aio_cb	164	typedef struct bdb_cb
63	{	165	{
64	struct aio_cb *volatile next;	166	struct bdb_cb *volatile next;
65	SV *callback;	167	SV *callback;
66	int type, pri, result;	168	int type, pri, result;
67		169
68	DB_ENV *env;	170	DB_ENV *env;
69	DB *db;	171	DB *db;
70	DB_TXN *txn;	172	DB_TXN *txn;
71	DBC *cursor;	173	DBC *dbc;
		174
		175	UV uv1;
72	int int1, int2;	176	int int1, int2;
73	U32 uint1, uint2;	177	U32 uint1, uint2;
74	char *buf1, *buf2;	178	char *buf1, *buf2, *buf3;
		179	SV *sv1, *sv2, *sv3;
75		180
76	DBT dbt1, dbt2, dbt3;	181	DBT dbt1, dbt2, dbt3;
77	} aio_cb;	182	DB_KEY_RANGE key_range;
		183	#if DB_VERSION_MINOR >= 3
		184	DB_SEQUENCE *seq;
		185	db_seq_t seq_t;
		186	#endif
78		187
		188	SV *rsv1, *rsv2; // keep some request objects alive
		189	} bdb_cb;
		190
79	typedef aio_cb *aio_req;	191	typedef bdb_cb *bdb_req;
80		192
81	enum {	193	enum {
82	PRI_MIN = -4,	194	PRI_MIN = -4,
83	PRI_MAX = 4,	195	PRI_MAX = 4,
84		196
…		…
87	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	199	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
88	};	200	};
89		201
90	#define AIO_TICKS ((1000000 + 1023) >> 10)	202	#define AIO_TICKS ((1000000 + 1023) >> 10)
91		203
		204	static SV *on_next_submit;
		205
92	static unsigned int max_poll_time = 0;	206	static unsigned int max_poll_time = 0;
93	static unsigned int max_poll_reqs = 0;	207	static unsigned int max_poll_reqs = 0;
94		208
95	/* calculcate time difference in ~1/AIO_TICKS of a second */	209	/* calculcate time difference in ~1/AIO_TICKS of a second */
96	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	210	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
101		215
102	static int next_pri = DEFAULT_PRI + PRI_BIAS;	216	static int next_pri = DEFAULT_PRI + PRI_BIAS;
103		217
104	static unsigned int started, idle, wanted;	218	static unsigned int started, idle, wanted;
105		219
106	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
107	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
108	#else
109	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
110	#endif
111
112	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
113	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
114
115	/* worker threads management */	220	/* worker threads management */
116	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	221	static mutex_t wrklock = X_MUTEX_INIT;
117		222
118	typedef struct worker {	223	typedef struct worker {
119	/* locked by wrklock */	224	/* locked by wrklock */
120	struct worker *prev, *next;	225	struct worker *prev, *next;
121		226
122	pthread_t tid;	227	thread_t tid;
123		228
124	/* locked by reslock, reqlock or wrklock */	229	/* locked by reslock, reqlock or wrklock */
125	aio_req req; /* currently processed request */	230	bdb_req req; /* currently processed request */
126	void *dbuf;	231	void *dbuf;
127	DIR *dirp;	232	DIR *dirp;
128	} worker;	233	} worker;
129		234
130	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	235	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
142	}	247	}
143		248
144	static volatile unsigned int nreqs, nready, npending;	249	static volatile unsigned int nreqs, nready, npending;
145	static volatile unsigned int max_idle = 4;	250	static volatile unsigned int max_idle = 4;
146	static volatile unsigned int max_outstanding = 0xffffffff;	251	static volatile unsigned int max_outstanding = 0xffffffff;
147	static int respipe [2];	252	static s_epipe respipe;
148		253
149	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	254	static mutex_t reslock = X_MUTEX_INIT;
150	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	255	static mutex_t reqlock = X_MUTEX_INIT;
151	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	256	static cond_t reqwait = X_COND_INIT;
152		257
153	#if WORDACCESS_UNSAFE	258	#if WORDACCESS_UNSAFE
154		259
155	static unsigned int get_nready ()	260	static unsigned int get_nready (void)
156	{	261	{
157	unsigned int retval;	262	unsigned int retval;
158		263
159	LOCK (reqlock);	264	X_LOCK (reqlock);
160	retval = nready;	265	retval = nready;
161	UNLOCK (reqlock);	266	X_UNLOCK (reqlock);
162		267
163	return retval;	268	return retval;
164	}	269	}
165		270
166	static unsigned int get_npending ()	271	static unsigned int get_npending (void)
167	{	272	{
168	unsigned int retval;	273	unsigned int retval;
169		274
170	LOCK (reslock);	275	X_LOCK (reslock);
171	retval = npending;	276	retval = npending;
172	UNLOCK (reslock);	277	X_UNLOCK (reslock);
173		278
174	return retval;	279	return retval;
175	}	280	}
176		281
177	static unsigned int get_nthreads ()	282	static unsigned int get_nthreads (void)
178	{	283	{
179	unsigned int retval;	284	unsigned int retval;
180		285
181	LOCK (wrklock);	286	X_LOCK (wrklock);
182	retval = started;	287	retval = started;
183	UNLOCK (wrklock);	288	X_UNLOCK (wrklock);
184		289
185	return retval;	290	return retval;
186	}	291	}
187		292
188	#else	293	#else
…		…
197	* a somewhat faster data structure might be nice, but	302	* a somewhat faster data structure might be nice, but
198	* with 8 priorities this actually needs <20 insns	303	* with 8 priorities this actually needs <20 insns
199	* per shift, the most expensive operation.	304	* per shift, the most expensive operation.
200	*/	305	*/
201	typedef struct {	306	typedef struct {
202	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	307	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
203	int size;	308	int size;
204	} reqq;	309	} reqq;
205		310
206	static reqq req_queue;	311	static reqq req_queue;
207	static reqq res_queue;	312	static reqq res_queue;
208		313
209	int reqq_push (reqq *q, aio_req req)	314	int reqq_push (reqq *q, bdb_req req)
210	{	315	{
211	int pri = req->pri;	316	int pri = req->pri;
212	req->next = 0;	317	req->next = 0;
213		318
214	if (q->qe[pri])	319	if (q->qe[pri])
…		…
220	q->qe[pri] = q->qs[pri] = req;	325	q->qe[pri] = q->qs[pri] = req;
221		326
222	return q->size++;	327	return q->size++;
223	}	328	}
224		329
225	aio_req reqq_shift (reqq *q)	330	bdb_req reqq_shift (reqq *q)
226	{	331	{
227	int pri;	332	int pri;
228		333
229	if (!q->size)	334	if (!q->size)
230	return 0;	335	return 0;
231		336
232	--q->size;	337	--q->size;
233		338
234	for (pri = NUM_PRI; pri--; )	339	for (pri = NUM_PRI; pri--; )
235	{	340	{
236	aio_req req = q->qs[pri];	341	bdb_req req = q->qs[pri];
237		342
238	if (req)	343	if (req)
239	{	344	{
240	if (!(q->qs[pri] = req->next))	345	if (!(q->qs[pri] = req->next))
241	q->qe[pri] = 0;	346	q->qe[pri] = 0;
…		…
245	}	350	}
246		351
247	abort ();	352	abort ();
248	}	353	}
249		354
250	static int poll_cb ();	355	static int poll_cb (void);
251	static void req_free (aio_req req);	356	static void req_free (bdb_req req);
252	static void req_cancel (aio_req req);
253		357
254	static int req_invoke (aio_req req)	358	static int req_invoke (bdb_req req)
255	{	359	{
256	dSP;	360	switch (req->type)
257
258	if (SvOK (req->callback))
259	{	361	{
		362	case REQ_DB_CLOSE:
		363	SvREFCNT_dec (req->sv1);
		364	break;
		365
		366	case REQ_DB_GET:
		367	case REQ_DB_PGET:
		368	case REQ_C_GET:
		369	case REQ_C_PGET:
		370	case REQ_DB_PUT:
		371	case REQ_C_PUT:
		372	dbt_to_sv (req->sv1, &req->dbt1);
		373	dbt_to_sv (req->sv2, &req->dbt2);
		374	dbt_to_sv (req->sv3, &req->dbt3);
		375	break;
		376
		377	case REQ_DB_KEY_RANGE:
		378	{
		379	AV *av = newAV ();
		380
		381	av_push (av, newSVnv (req->key_range.less));
		382	av_push (av, newSVnv (req->key_range.equal));
		383	av_push (av, newSVnv (req->key_range.greater));
		384
		385	av = (AV *)newRV_noinc ((SV *)av);
		386
		387	SvREADONLY_off (req->sv1);
		388	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		389	SvREFCNT_dec (av);
		390	SvREFCNT_dec (req->sv1);
		391	}
		392	break;
		393
		394	#if DB_VERSION_MINOR >= 3
		395	case REQ_SEQ_GET:
		396	SvREADONLY_off (req->sv1);
		397
		398	if (sizeof (IV) > 4)
		399	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		400	else
		401	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		402
		403	SvREFCNT_dec (req->sv1);
		404	break;
		405	#endif
		406
		407	case REQ_ENV_LOG_ARCHIVE:
		408	{
		409	AV *av = newAV ();
		410	char **listp = (char **)req->buf1;
		411
		412	if (listp)
		413	while (*listp)
		414	av_push (av, newSVpv (*listp, 0)), ++listp;
		415
		416	av = (AV *)newRV_noinc ((SV *)av);
		417
		418	SvREADONLY_off (req->sv1);
		419	sv_setsv_mg (req->sv1, (SV *)av);
		420	SvREFCNT_dec (av);
		421	SvREFCNT_dec (req->sv1);
		422	}
		423	break;
		424	}
		425
		426	errno = req->result;
		427
		428	if (req->callback)
		429	{
		430	dSP;
		431
260	ENTER;	432	ENTER;
261	SAVETMPS;	433	SAVETMPS;
262	PUSHMARK (SP);	434	PUSHMARK (SP);
263	EXTEND (SP, 1);
264
265	switch (req->type)
266	{
267	}
268
269	errno = req->result;
270		435
271	PUTBACK;	436	PUTBACK;
272	call_sv (req->callback, G_VOID | G_EVAL);	437	call_sv (req->callback, G_VOID | G_EVAL);
273	SPAGAIN;	438	SPAGAIN;
274		439
275	FREETMPS;	440	FREETMPS;
276	LEAVE;	441	LEAVE;
		442
		443	return !SvTRUE (ERRSV);
277	}	444	}
278		445
279	return !SvTRUE (ERRSV);	446	return 1;
280	}	447	}
281		448
282	static void req_free (aio_req req)	449	static void req_free (bdb_req req)
283	{	450	{
		451	SvREFCNT_dec (req->callback);
		452
		453	SvREFCNT_dec (req->rsv1);
		454	SvREFCNT_dec (req->rsv2);
		455
284	free (req->buf1);	456	free (req->buf1);
285	free (req->buf2);	457	free (req->buf2);
		458	free (req->buf3);
		459
286	Safefree (req);	460	Safefree (req);
287	}	461	}
288		462
289	static void *aio_proc (void *arg);	463	static void
		464	create_respipe (void)
		465	{
		466	if (s_epipe_renew (&respipe))
		467	croak ("BDB: unable to create event pipe");
		468	}
		469
		470	static void bdb_request (bdb_req req);
		471	X_THREAD_PROC (bdb_proc);
290		472
291	static void start_thread (void)	473	static void start_thread (void)
292	{	474	{
293	sigset_t fullsigset, oldsigset;
294	pthread_attr_t attr;
295
296	worker *wrk = calloc (1, sizeof (worker));	475	worker *wrk = calloc (1, sizeof (worker));
297		476
298	if (!wrk)	477	if (!wrk)
299	croak ("unable to allocate worker thread data");	478	croak ("unable to allocate worker thread data");
300		479
301	pthread_attr_init (&attr);
302	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
303	#ifdef PTHREAD_SCOPE_PROCESS
304	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
305	#endif
306
307	sigfillset (&fullsigset);
308
309	LOCK (wrklock);	480	X_LOCK (wrklock);
310	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
311
312	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	481	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
313	{	482	{
314	wrk->prev = &wrk_first;	483	wrk->prev = &wrk_first;
315	wrk->next = wrk_first.next;	484	wrk->next = wrk_first.next;
316	wrk_first.next->prev = wrk;	485	wrk_first.next->prev = wrk;
317	wrk_first.next = wrk;	486	wrk_first.next = wrk;
318	++started;	487	++started;
319	}	488	}
320	else	489	else
321	free (wrk);	490	free (wrk);
322		491
323	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
324	UNLOCK (wrklock);	492	X_UNLOCK (wrklock);
325	}	493	}
326		494
327	static void maybe_start_thread ()	495	static void maybe_start_thread (void)
328	{	496	{
329	if (get_nthreads () >= wanted)	497	if (get_nthreads () >= wanted)
330	return;	498	return;
331		499
332	/* todo: maybe use idle here, but might be less exact */	500	/* todo: maybe use idle here, but might be less exact */
…		…
334	return;	502	return;
335		503
336	start_thread ();	504	start_thread ();
337	}	505	}
338		506
339	static void req_send (aio_req req)	507	static void req_send (bdb_req req)
340	{	508	{
341	SV *wait_callback = 0;	509	SV *wait_callback = 0;
342		510
343	// synthesize callback if none given	511	if (on_next_submit)
344	if (!SvOK (req->callback))
345	{	512	{
346	dSP;	513	dSP;
		514	SV *cb = sv_2mortal (on_next_submit);
		515
		516	on_next_submit = 0;
		517
347	PUSHMARK (SP);	518	PUSHMARK (SP);
348	PUTBACK;	519	PUTBACK;
349	int count = call_sv (prepare_cb, G_ARRAY);	520	call_sv (cb, G_DISCARD | G_EVAL);
350	SPAGAIN;	521	SPAGAIN;
351
352	if (count != 2)
353	croak ("prepare callback must return exactly two values\n");
354
355	wait_callback = SvREFCNT_inc (POPs);
356	SvREFCNT_dec (req->callback);
357	req->callback = SvREFCNT_inc (POPs);
358	}	522	}
359		523
		524	// synthesize callback if none given
		525	if (!req->callback)
		526	{
		527	if (SvOK (prepare_cb))
		528	{
		529	int count;
		530
		531	dSP;
		532	PUSHMARK (SP);
		533	PUTBACK;
		534	count = call_sv (prepare_cb, G_ARRAY);
		535	SPAGAIN;
		536
		537	if (count != 2)
		538	croak ("sync prepare callback must return exactly two values\n");
		539
		540	wait_callback = POPs;
		541	req->callback = SvREFCNT_inc (POPs);
		542	}
		543	else
		544	{
		545	// execute request synchronously
		546	bdb_request (req);
		547	req_invoke (req);
		548	req_free (req);
		549	return;
		550	}
		551	}
		552
360	++nreqs;	553	++nreqs;
361		554
362	LOCK (reqlock);	555	X_LOCK (reqlock);
363	++nready;	556	++nready;
364	reqq_push (&req_queue, req);	557	reqq_push (&req_queue, req);
365	pthread_cond_signal (&reqwait);	558	X_COND_SIGNAL (reqwait);
366	UNLOCK (reqlock);	559	X_UNLOCK (reqlock);
367		560
368	maybe_start_thread ();	561	maybe_start_thread ();
369		562
370	if (wait_callback)	563	if (wait_callback)
371	{	564	{
372	dSP;	565	dSP;
373	PUSHMARK (SP);	566	PUSHMARK (SP);
374	PUTBACK;	567	PUTBACK;
375	call_sv (wait_callback, G_DISCARD);	568	call_sv (wait_callback, G_DISCARD);
376	SvREFCNT_dec (wait_callback);
377	}	569	}
378	}	570	}
379		571
380	static void end_thread (void)	572	static void end_thread (void)
381	{	573	{
382	aio_req req;	574	bdb_req req = calloc (1, sizeof (bdb_cb));
383
384	Newz (0, req, 1, aio_cb);
385		575
386	req->type = REQ_QUIT;	576	req->type = REQ_QUIT;
387	req->pri = PRI_MAX + PRI_BIAS;	577	req->pri = PRI_MAX + PRI_BIAS;
388		578
389	LOCK (reqlock);	579	X_LOCK (reqlock);
390	reqq_push (&req_queue, req);	580	reqq_push (&req_queue, req);
391	pthread_cond_signal (&reqwait);	581	X_COND_SIGNAL (reqwait);
392	UNLOCK (reqlock);	582	X_UNLOCK (reqlock);
393		583
394	LOCK (wrklock);	584	X_LOCK (wrklock);
395	--started;	585	--started;
396	UNLOCK (wrklock);	586	X_UNLOCK (wrklock);
397	}	587	}
398		588
399	static void set_max_idle (int nthreads)	589	static void set_max_idle (int nthreads)
400	{	590	{
401	if (WORDACCESS_UNSAFE) LOCK (reqlock);	591	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
402	max_idle = nthreads <= 0 ? 1 : nthreads;	592	max_idle = nthreads <= 0 ? 1 : nthreads;
403	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	593	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
404	}	594	}
405		595
406	static void min_parallel (int nthreads)	596	static void min_parallel (int nthreads)
407	{	597	{
408	if (wanted < nthreads)	598	if (wanted < nthreads)
…		…
416		606
417	while (started > wanted)	607	while (started > wanted)
418	end_thread ();	608	end_thread ();
419	}	609	}
420		610
421	static void poll_wait ()	611	static void poll_wait (void)
422	{	612	{
423	fd_set rfd;	613	fd_set rfd;
424		614
425	while (nreqs)	615	while (nreqs)
426	{	616	{
427	int size;	617	int size;
428	if (WORDACCESS_UNSAFE) LOCK (reslock);	618	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
429	size = res_queue.size;	619	size = res_queue.size;
430	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	620	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
431		621
432	if (size)	622	if (size)
433	return;	623	return;
434		624
435	maybe_start_thread ();	625	maybe_start_thread ();
436		626
437	FD_ZERO(&rfd);	627	s_epipe_wait (&respipe);
438	FD_SET(respipe [0], &rfd);
439
440	select (respipe [0] + 1, &rfd, 0, 0, 0);
441	}	628	}
442	}	629	}
443		630
444	static int poll_cb ()	631	static int poll_cb (void)
445	{	632	{
446	dSP;	633	dSP;
447	int count = 0;	634	int count = 0;
448	int maxreqs = max_poll_reqs;	635	int maxreqs = max_poll_reqs;
449	int do_croak = 0;	636	int do_croak = 0;
450	struct timeval tv_start, tv_now;	637	struct timeval tv_start, tv_now;
451	aio_req req;	638	bdb_req req;
452		639
453	if (max_poll_time)	640	if (max_poll_time)
454	gettimeofday (&tv_start, 0);	641	gettimeofday (&tv_start, 0);
455		642
456	for (;;)	643	for (;;)
457	{	644	{
458	for (;;)	645	for (;;)
459	{	646	{
460	maybe_start_thread ();	647	maybe_start_thread ();
461		648
462	LOCK (reslock);	649	X_LOCK (reslock);
463	req = reqq_shift (&res_queue);	650	req = reqq_shift (&res_queue);
464		651
465	if (req)	652	if (req)
466	{	653	{
467	--npending;	654	--npending;
468		655
469	if (!res_queue.size)	656	if (!res_queue.size)
470	{
471	/* read any signals sent by the worker threads */	657	/* read any signals sent by the worker threads */
472	char buf [4];	658	s_epipe_drain (&respipe);
473	while (read (respipe [0], buf, 4) == 4)
474	;
475	}
476	}	659	}
477		660
478	UNLOCK (reslock);	661	X_UNLOCK (reslock);
479		662
480	if (!req)	663	if (!req)
481	break;	664	break;
482		665
483	--nreqs;	666	--nreqs;
…		…
513	}	696	}
514		697
515	return count;	698	return count;
516	}	699	}
517		700
518	static void create_pipe ()
519	{
520	if (pipe (respipe))
521	croak ("unable to initialize result pipe");
522
523	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
524	croak ("cannot set result pipe to nonblocking mode");
525
526	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
527	croak ("cannot set result pipe to nonblocking mode");
528	}
529
530	/*****************************************************************************/	701	/*****************************************************************************/
531		702
532	static void *aio_proc (void *thr_arg)	703	static void
		704	bdb_request (bdb_req req)
533	{	705	{
		706	switch (req->type)
		707	{
		708	case REQ_ENV_OPEN:
		709	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		710	break;
		711
		712	case REQ_ENV_CLOSE:
		713	req->result = req->env->close (req->env, req->uint1);
		714	break;
		715
		716	case REQ_ENV_TXN_CHECKPOINT:
		717	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		718	break;
		719
		720	case REQ_ENV_LOCK_DETECT:
		721	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		722	break;
		723
		724	case REQ_ENV_MEMP_SYNC:
		725	req->result = req->env->memp_sync (req->env, 0);
		726	break;
		727
		728	case REQ_ENV_MEMP_TRICKLE:
		729	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		730	break;
		731
		732	case REQ_ENV_DBREMOVE:
		733	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		734	break;
		735
		736	case REQ_ENV_DBRENAME:
		737	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		738	break;
		739
		740	case REQ_DB_OPEN:
		741	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		742	break;
		743
		744	case REQ_DB_CLOSE:
		745	req->result = req->db->close (req->db, req->uint1);
		746	break;
		747
		748	#if DB_VERSION_MINOR >= 4
		749	case REQ_DB_COMPACT:
		750	req->result = req->db->compact (req->db, req->txn, req->dbt1.data ? &req->dbt1 : 0, req->dbt2.data ? &req->dbt2 : 0, 0, req->uint1, 0);
		751	break;
		752	#endif
		753
		754	case REQ_DB_SYNC:
		755	req->result = req->db->sync (req->db, req->uint1);
		756	break;
		757
		758	case REQ_DB_VERIFY:
		759	req->result = req->db->verify (req->db, req->buf1, req->buf2, 0, req->uint1);
		760	break;
		761
		762	case REQ_DB_UPGRADE:
		763	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		764	break;
		765
		766	case REQ_DB_PUT:
		767	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		768	break;
		769
		770	#if DB_VERSION_MINOR >= 6
		771	case REQ_DB_EXISTS:
		772	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		773	break;
		774	#endif
		775	case REQ_DB_GET:
		776	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		777	break;
		778
		779	case REQ_DB_PGET:
		780	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		781	break;
		782
		783	case REQ_DB_DEL:
		784	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		785	break;
		786
		787	case REQ_DB_KEY_RANGE:
		788	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		789	break;
		790
		791	case REQ_TXN_COMMIT:
		792	req->result = req->txn->commit (req->txn, req->uint1);
		793	break;
		794
		795	case REQ_TXN_ABORT:
		796	req->result = req->txn->abort (req->txn);
		797	break;
		798
		799	case REQ_TXN_FINISH:
		800	if (req->txn->flags & TXN_DEADLOCK)
		801	{
		802	req->result = req->txn->abort (req->txn);
		803	if (!req->result)
		804	req->result = DB_LOCK_DEADLOCK;
		805	}
		806	else
		807	req->result = req->txn->commit (req->txn, req->uint1);
		808	break;
		809
		810	case REQ_C_CLOSE:
		811	req->result = req->dbc->c_close (req->dbc);
		812	break;
		813
		814	case REQ_C_COUNT:
		815	{
		816	db_recno_t recno;
		817	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		818	req->uv1 = recno;
		819	}
		820	break;
		821
		822	case REQ_C_PUT:
		823	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		824	break;
		825
		826	case REQ_C_GET:
		827	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		828	break;
		829
		830	case REQ_C_PGET:
		831	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		832	break;
		833
		834	case REQ_C_DEL:
		835	req->result = req->dbc->c_del (req->dbc, req->uint1);
		836	break;
		837
		838	#if DB_VERSION_MINOR >= 3
		839	case REQ_SEQ_OPEN:
		840	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		841	break;
		842
		843	case REQ_SEQ_CLOSE:
		844	req->result = req->seq->close (req->seq, req->uint1);
		845	break;
		846
		847	case REQ_SEQ_GET:
		848	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		849	break;
		850
		851	case REQ_SEQ_REMOVE:
		852	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		853	break;
		854	#endif
		855
		856	case REQ_ENV_LOG_ARCHIVE:
		857	{
		858	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		859	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		860	req->buf1 = (char *)listp;
		861	}
		862	break;
		863
		864	default:
		865	req->result = ENOSYS;
		866	break;
		867	}
		868
		869	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		870	req->txn->flags |= TXN_DEADLOCK;
		871	}
		872
		873	X_THREAD_PROC (bdb_proc)
		874	{
534	aio_req req;	875	bdb_req req;
535	struct timespec ts;	876	struct timespec ts;
536	worker *self = (worker *)thr_arg;	877	worker *self = (worker *)thr_arg;
537		878
538	/* try to distribute timeouts somewhat evenly */	879	/* try to distribute timeouts somewhat evenly */
539	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	880	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
540	* (1000000000UL / 1024UL);
541		881
542	for (;;)	882	for (;;)
543	{	883	{
544	ts.tv_sec = time (0) + IDLE_TIMEOUT;	884	ts.tv_sec = time (0) + IDLE_TIMEOUT;
545		885
546	LOCK (reqlock);	886	X_LOCK (reqlock);
547		887
548	for (;;)	888	for (;;)
549	{	889	{
550	self->req = req = reqq_shift (&req_queue);	890	self->req = req = reqq_shift (&req_queue);
551		891
552	if (req)	892	if (req)
553	break;	893	break;
554		894
555	++idle;	895	++idle;
556		896
557	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	897	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
558	== ETIMEDOUT)	898	== ETIMEDOUT)
559	{	899	{
560	if (idle > max_idle)	900	if (idle > max_idle)
561	{	901	{
562	--idle;	902	--idle;
563	UNLOCK (reqlock);	903	X_UNLOCK (reqlock);
564	LOCK (wrklock);	904	X_LOCK (wrklock);
565	--started;	905	--started;
566	UNLOCK (wrklock);	906	X_UNLOCK (wrklock);
567	goto quit;	907	goto quit;
568	}	908	}
569		909
570	/* we are allowed to idle, so do so without any timeout */	910	/* we are allowed to idle, so do so without any timeout */
571	pthread_cond_wait (&reqwait, &reqlock);	911	X_COND_WAIT (reqwait, reqlock);
572	ts.tv_sec = time (0) + IDLE_TIMEOUT;	912	ts.tv_sec = time (0) + IDLE_TIMEOUT;
573	}	913	}
574		914
575	--idle;	915	--idle;
576	}	916	}
577		917
578	--nready;	918	--nready;
579		919
580	UNLOCK (reqlock);	920	X_UNLOCK (reqlock);
581		921
582	switch (req->type)	922	if (req->type == REQ_QUIT)
583	{	923	{
584	case REQ_QUIT:	924	X_LOCK (reslock);
		925	free (req);
		926	self->req = 0;
		927	X_UNLOCK (reslock);
		928
585	goto quit;	929	goto quit;
586
587	case REQ_ENV_OPEN:
588	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
589	break;
590
591	case REQ_ENV_CLOSE:
592	req->result = req->env->close (req->env, req->uint1);
593	break;
594
595	case REQ_DB_OPEN:
596	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
597	break;
598
599	case REQ_DB_CLOSE:
600	req->result = req->db->close (req->db, req->uint1);
601	break;
602
603	case REQ_DB_COMPACT:
604	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
605	break;
606
607	case REQ_DB_SYNC:
608	req->result = req->db->sync (req->db, req->uint1);
609	break;
610
611	case REQ_DB_PUT:
612	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
613	break;
614
615	default:
616	req->result = ENOSYS;
617	break;
618	}	930	}
619		931
		932	bdb_request (req);
		933
620	LOCK (reslock);	934	X_LOCK (reslock);
621		935
622	++npending;	936	++npending;
623		937
624	if (!reqq_push (&res_queue, req))	938	if (!reqq_push (&res_queue, req))
625	/* write a dummy byte to the pipe so fh becomes ready */	939	s_epipe_signal (&respipe);
626	write (respipe [1], &respipe, 1);
627		940
628	self->req = 0;	941	self->req = 0;
629	worker_clear (self);	942	worker_clear (self);
630		943
631	UNLOCK (reslock);	944	X_UNLOCK (reslock);
632	}	945	}
633		946
634	quit:	947	quit:
635	LOCK (wrklock);	948	X_LOCK (wrklock);
636	worker_free (self);	949	worker_free (self);
637	UNLOCK (wrklock);	950	X_UNLOCK (wrklock);
638		951
639	return 0;	952	return 0;
640	}	953	}
641		954
642	/*****************************************************************************/	955	/*****************************************************************************/
643		956
644	static void atfork_prepare (void)	957	static void atfork_prepare (void)
645	{	958	{
646	LOCK (wrklock);	959	X_LOCK (wrklock);
647	LOCK (reqlock);	960	X_LOCK (reqlock);
648	LOCK (reslock);	961	X_LOCK (reslock);
649	}	962	}
650		963
651	static void atfork_parent (void)	964	static void atfork_parent (void)
652	{	965	{
653	UNLOCK (reslock);	966	X_UNLOCK (reslock);
654	UNLOCK (reqlock);	967	X_UNLOCK (reqlock);
655	UNLOCK (wrklock);	968	X_UNLOCK (wrklock);
656	}	969	}
657		970
658	static void atfork_child (void)	971	static void atfork_child (void)
659	{	972	{
660	aio_req prv;	973	bdb_req prv;
661		974
662	while (prv = reqq_shift (&req_queue))	975	while (prv = reqq_shift (&req_queue))
663	req_free (prv);	976	req_free (prv);
664		977
665	while (prv = reqq_shift (&res_queue))	978	while (prv = reqq_shift (&res_queue))
…		…
680	idle = 0;	993	idle = 0;
681	nreqs = 0;	994	nreqs = 0;
682	nready = 0;	995	nready = 0;
683	npending = 0;	996	npending = 0;
684		997
685	close (respipe [0]);
686	close (respipe [1]);
687	create_pipe ();	998	create_respipe ();
688		999
689	atfork_parent ();	1000	atfork_parent ();
690	}	1001	}
691		1002
692	#define dREQ(reqtype) \	1003	#define dREQ(reqtype,rsvcnt) \
693	aio_req req; \	1004	bdb_req req; \
694	int req_pri = next_pri; \	1005	int req_pri = next_pri; \
695	next_pri = DEFAULT_PRI + PRI_BIAS; \	1006	next_pri = DEFAULT_PRI + PRI_BIAS; \
696	\	1007	\
697	if (SvOK (callback) && !SvROK (callback)) \	1008	if (callback && SvOK (callback)) \
698	croak ("callback must be undef or of reference type"); \	1009	croak ("callback has illegal type or extra arguments"); \
699	\	1010	\
700	Newz (0, req, 1, aio_cb); \	1011	Newz (0, req, 1, bdb_cb); \
701	if (!req) \	1012	if (!req) \
702	croak ("out of memory during aio_req allocation"); \	1013	croak ("out of memory during bdb_req allocation"); \
703	\	1014	\
704	req->callback = newSVsv (callback); \	1015	req->callback = SvREFCNT_inc (cb); \
705	req->type = (reqtype); \	1016	req->type = (reqtype); \
706	req->pri = req_pri	1017	req->pri = req_pri; \
		1018	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1019	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1020	(void)0;
707		1021
708	#define REQ_SEND \	1022	#define REQ_SEND \
709	req_send (req)	1023	req_send (req)
710		1024
711	#define SvPTR(var, arg, type, class) \	1025	#define SvPTR(var, arg, type, class, nullok) \
712	if (!SvOK (arg)) \	1026	if (!SvOK (arg)) \
		1027	{ \
		1028	if (nullok != 1) \
		1029	croak (# var " must be a " # class " object, not undef"); \
		1030	\
713	(var) = 0; \	1031	(var) = 0; \
		1032	} \
714	else if (sv_derived_from ((arg), # class)) \	1033	else if (sv_derived_from ((arg), # class)) \
715	{ \	1034	{ \
716	IV tmp = SvIV ((SV*) SvRV (arg)); \	1035	IV tmp = SvIV ((SV*) SvRV (arg)); \
717	(var) = INT2PTR (type, tmp); \	1036	(var) = INT2PTR (type, tmp); \
		1037	if (!var && nullok != 2) \
		1038	croak (# var " is not a valid " # class " object anymore"); \
718	} \	1039	} \
719	else \	1040	else \
720	Perl_croak (# var " is not of type " # class)	1041	croak (# var " is not of type " # class);
721		1042
722	inline void	1043	#define ARG_MUTABLE(name) \
723	set_dbt (DBT *dbt, SV *sv)	1044	if (SvREADONLY (name)) \
724	{	1045	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
725	STRLEN len;
726	char *data = SvPVbyte (sv, len);
727		1046
728	dbt->data = malloc (len);	1047	static void
729	memcpy (dbt->data, data, len);	1048	ptr_nuke (SV *sv)
730	dbt->size = len;	1049	{
		1050	assert (SvROK (sv));
		1051	sv_setiv (SvRV (sv), 0);
731	}	1052	}
732		1053
		1054	static int
		1055	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1056	{
		1057	if (*mg->mg_ptr == '!') // should always be the case
		1058	if (-30999 <= errno && errno <= -30800)
		1059	{
		1060	sv_setnv (sv, (NV)errno);
		1061	sv_setpv (sv, db_strerror (errno));
		1062	SvNOK_on (sv); /* what a wonderful hack! */
		1063	// ^^^ copied from perl sources
		1064	return 0;
		1065	}
		1066
		1067	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1068	}
		1069
		1070	static MGVTBL vtbl_errno;
		1071
		1072	// this wonderful hack :( patches perl's $! variable to support our errno values
		1073	static void
		1074	patch_errno (void)
		1075	{
		1076	SV *sv;
		1077	MAGIC *mg;
		1078
		1079	if (!(sv = get_sv ("!", 1)))
		1080	return;
		1081
		1082	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1083	return;
		1084
		1085	if (mg->mg_virtual != &PL_vtbl_sv)
		1086	return;
		1087
		1088	vtbl_errno = PL_vtbl_sv;
		1089	vtbl_errno.svt_get = errno_get;
		1090	mg->mg_virtual = &vtbl_errno;
		1091	}
		1092
		1093	#if __GNUC__ >= 4
		1094	# define noinline __attribute__ ((noinline))
		1095	#else
		1096	# define noinline
		1097	#endif
		1098
		1099	static noinline SV *
		1100	pop_callback (I32 *ritems, SV *sv)
		1101	{
		1102	if (SvROK (sv))
		1103	{
		1104	HV *st;
		1105	GV *gvp;
		1106	CV *cv;
		1107	const char *name;
		1108
		1109	/* forgive me */
		1110	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1111	&& (st = SvSTASH (SvRV (sv)))
		1112	&& (name = HvNAME_get (st))
		1113	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1114	return 0;
		1115
		1116	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1117	{
		1118	--*ritems;
		1119	return (SV *)cv;
		1120	}
		1121	}
		1122
		1123	return 0;
		1124	}
		1125
		1126	/*****************************************************************************/
		1127
		1128	#if 0
		1129	static int
		1130	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1131	{
		1132	ssize_t size1 = dbt1->size;
		1133	ssize_t size2 = dbt2->size;
		1134	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1135	size1 <= size2 ? size1 : size2);
		1136
		1137	if (res)
		1138	return res;
		1139	else if (size1 - size2)
		1140	return size1 - size2;
		1141	else
		1142	return 0;
		1143	}
		1144
		1145	static size_t
		1146	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1147	{
		1148	ssize_t size1 = dbt1->size;
		1149	ssize_t size2 = dbt2->size;
		1150	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1151	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1152	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1153
		1154	while (p1 < pe)
		1155	if (*p1++ != *p2++)
		1156	return p1 - (u_int8_t *)dbt1->data - 1;
		1157
		1158	if (size1 < size2) return size1 + 1;
		1159	if (size1 > size2) return size2 + 1;
		1160
		1161	return size1;
		1162	}
		1163	#endif
		1164
		1165	/*****************************************************************************/
		1166
		1167	/* stupid windows defines CALLBACK as well */
		1168	#undef CALLBACK
		1169	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1170
733	MODULE = BDB PACKAGE = BDB	1171	MODULE = BDB PACKAGE = BDB
734		1172
735	PROTOTYPES: ENABLE	1173	PROTOTYPES: ENABLE
736		1174
737	BOOT:	1175	BOOT:
…		…
752	const_iv (INIT_TXN)	1190	const_iv (INIT_TXN)
753	const_iv (RECOVER)	1191	const_iv (RECOVER)
754	const_iv (INIT_TXN)	1192	const_iv (INIT_TXN)
755	const_iv (RECOVER_FATAL)	1193	const_iv (RECOVER_FATAL)
756	const_iv (CREATE)	1194	const_iv (CREATE)
		1195	const_iv (RDONLY)
757	const_iv (USE_ENVIRON)	1196	const_iv (USE_ENVIRON)
758	const_iv (USE_ENVIRON_ROOT)	1197	const_iv (USE_ENVIRON_ROOT)
759	const_iv (LOCKDOWN)	1198	const_iv (LOCKDOWN)
760	const_iv (PRIVATE)	1199	const_iv (PRIVATE)
761	const_iv (REGISTER)
762	const_iv (SYSTEM_MEM)	1200	const_iv (SYSTEM_MEM)
763	const_iv (AUTO_COMMIT)	1201	const_iv (AUTO_COMMIT)
764	const_iv (CDB_ALLDB)	1202	const_iv (CDB_ALLDB)
765	const_iv (DIRECT_DB)	1203	const_iv (DIRECT_DB)
766	const_iv (DIRECT_LOG)
767	const_iv (DSYNC_DB)
768	const_iv (DSYNC_LOG)
769	const_iv (LOG_AUTOREMOVE)
770	const_iv (LOG_INMEMORY)
771	const_iv (NOLOCKING)	1204	const_iv (NOLOCKING)
772	const_iv (MULTIVERSION)
773	const_iv (NOMMAP)	1205	const_iv (NOMMAP)
774	const_iv (NOPANIC)	1206	const_iv (NOPANIC)
775	const_iv (OVERWRITE)	1207	const_iv (OVERWRITE)
776	const_iv (PANIC_ENVIRONMENT)	1208	const_iv (PANIC_ENVIRONMENT)
777	const_iv (REGION_INIT)	1209	const_iv (REGION_INIT)
778	const_iv (TIME_NOTGRANTED)	1210	const_iv (TIME_NOTGRANTED)
779	const_iv (TXN_NOSYNC)	1211	const_iv (TXN_NOSYNC)
780	const_iv (TXN_SNAPSHOT)	1212	const_iv (TXN_NOT_DURABLE)
781	const_iv (TXN_WRITE_NOSYNC)	1213	const_iv (TXN_WRITE_NOSYNC)
		1214	const_iv (WRITECURSOR)
782	const_iv (YIELDCPU)	1215	const_iv (YIELDCPU)
783	const_iv (ENCRYPT_AES)	1216	const_iv (ENCRYPT_AES)
784	const_iv (XA_CREATE)	1217	const_iv (XA_CREATE)
785	const_iv (BTREE)	1218	const_iv (BTREE)
786	const_iv (HASH)	1219	const_iv (HASH)
787	const_iv (QUEUE)	1220	const_iv (QUEUE)
788	const_iv (RECNO)	1221	const_iv (RECNO)
789	const_iv (UNKNOWN)	1222	const_iv (UNKNOWN)
790	const_iv (EXCL)	1223	const_iv (EXCL)
791	const_iv (READ_UNCOMMITTED)
792	const_iv (TRUNCATE)	1224	const_iv (TRUNCATE)
793	const_iv (NOSYNC)	1225	const_iv (NOSYNC)
794	const_iv (CHKSUM)	1226	const_iv (CHKSUM)
795	const_iv (ENCRYPT)	1227	const_iv (ENCRYPT)
796	const_iv (TXN_NOT_DURABLE)
797	const_iv (DUP)	1228	const_iv (DUP)
798	const_iv (DUPSORT)	1229	const_iv (DUPSORT)
799	const_iv (RECNUM)	1230	//const_iv (RECNUM)
800	const_iv (RENUMBER)	1231	const_iv (RENUMBER)
801	const_iv (REVSPLITOFF)	1232	const_iv (REVSPLITOFF)
802	const_iv (INORDER)
803	const_iv (CONSUME)	1233	const_iv (CONSUME)
804	const_iv (CONSUME_WAIT)	1234	const_iv (CONSUME_WAIT)
		1235	const_iv (GET_BOTH)
		1236	const_iv (GET_BOTH_RANGE)
		1237	//const_iv (SET_RECNO)
		1238	//const_iv (MULTIPLE)
805	const_iv (SNAPSHOT)	1239	const_iv (SNAPSHOT)
806	const_iv (JOIN_ITEM)	1240	const_iv (JOIN_ITEM)
		1241	const_iv (JOIN_NOSORT)
807	const_iv (RMW)	1242	const_iv (RMW)
808		1243
809	const_iv (NOTFOUND)	1244	const_iv (NOTFOUND)
810	const_iv (KEYEMPTY)	1245	const_iv (KEYEMPTY)
811	const_iv (LOCK_DEADLOCK)	1246	const_iv (LOCK_DEADLOCK)
812	const_iv (LOCK_NOTGRANTED)	1247	const_iv (LOCK_NOTGRANTED)
813	const_iv (RUNRECOVERY)	1248	const_iv (RUNRECOVERY)
814	const_iv (OLD_VERSION)	1249	const_iv (OLD_VERSION)
815	const_iv (REP_HANDLE_DEAD)	1250	const_iv (REP_HANDLE_DEAD)
816	const_iv (REP_LOCKOUT)	1251	const_iv (SECONDARY_BAD)
817
818	const_iv (FREE_SPACE)
819	const_iv (FREELIST_ONLY)
820		1252
821	const_iv (APPEND)	1253	const_iv (APPEND)
822	const_iv (NODUPDATA)	1254	const_iv (NODUPDATA)
823	const_iv (NOOVERWRITE)	1255	const_iv (NOOVERWRITE)
824		1256
		1257	const_iv (TXN_NOWAIT)
		1258	const_iv (TXN_SYNC)
		1259
825	const_iv (SET_LOCK_TIMEOUT)	1260	const_iv (SET_LOCK_TIMEOUT)
826	const_iv (SET_TXN_TIMEOUT)	1261	const_iv (SET_TXN_TIMEOUT)
		1262
		1263	const_iv (FIRST)
		1264	const_iv (NEXT)
		1265	const_iv (NEXT_DUP)
		1266	const_iv (NEXT_NODUP)
		1267	const_iv (PREV)
		1268	const_iv (PREV_NODUP)
		1269	const_iv (SET)
		1270	const_iv (SET_RANGE)
		1271	const_iv (LAST)
		1272	const_iv (BEFORE)
		1273	const_iv (AFTER)
		1274	const_iv (CURRENT)
		1275	const_iv (KEYFIRST)
		1276	const_iv (KEYLAST)
		1277	const_iv (NODUPDATA)
		1278
		1279	const_iv (FORCE)
		1280
		1281	const_iv (LOCK_DEFAULT)
		1282	const_iv (LOCK_EXPIRE)
		1283	const_iv (LOCK_MAXLOCKS)
		1284	const_iv (LOCK_MINLOCKS)
		1285	const_iv (LOCK_MINWRITE)
		1286	const_iv (LOCK_OLDEST)
		1287	const_iv (LOCK_RANDOM)
		1288	const_iv (LOCK_YOUNGEST)
		1289
		1290	const_iv (DONOTINDEX)
		1291	const_iv (KEYEMPTY )
		1292	const_iv (KEYEXIST )
		1293	const_iv (LOCK_DEADLOCK)
		1294	const_iv (LOCK_NOTGRANTED)
		1295	const_iv (NOSERVER)
		1296	const_iv (NOSERVER_HOME)
		1297	const_iv (NOSERVER_ID)
		1298	const_iv (NOTFOUND)
		1299	const_iv (PAGE_NOTFOUND)
		1300	const_iv (REP_DUPMASTER)
		1301	const_iv (REP_HANDLE_DEAD)
		1302	const_iv (REP_HOLDELECTION)
		1303	const_iv (REP_ISPERM)
		1304	const_iv (REP_NEWMASTER)
		1305	const_iv (REP_NEWSITE)
		1306	const_iv (REP_NOTPERM)
		1307	const_iv (REP_UNAVAIL)
		1308	const_iv (RUNRECOVERY)
		1309	const_iv (SECONDARY_BAD)
		1310	const_iv (VERIFY_BAD)
		1311
		1312	const_iv (SALVAGE)
		1313	const_iv (AGGRESSIVE)
		1314	const_iv (PRINTABLE)
		1315	const_iv (NOORDERCHK)
		1316	const_iv (ORDERCHKONLY)
		1317
		1318	const_iv (ARCH_ABS)
		1319	const_iv (ARCH_DATA)
		1320	const_iv (ARCH_LOG)
		1321	const_iv (ARCH_REMOVE)
		1322
		1323	const_iv (VERB_DEADLOCK)
		1324	const_iv (VERB_RECOVERY)
		1325	const_iv (VERB_REPLICATION)
		1326	const_iv (VERB_WAITSFOR)
		1327
		1328	const_iv (VERSION_MAJOR)
		1329	const_iv (VERSION_MINOR)
		1330	const_iv (VERSION_PATCH)
		1331	#if DB_VERSION_MINOR >= 3
		1332	const_iv (INORDER)
		1333	const_iv (LOCK_MAXWRITE)
		1334	const_iv (SEQ_DEC)
		1335	const_iv (SEQ_INC)
		1336	const_iv (SEQ_WRAP)
		1337	const_iv (BUFFER_SMALL)
		1338	const_iv (LOG_BUFFER_FULL)
		1339	const_iv (VERSION_MISMATCH)
		1340	#endif
		1341	#if DB_VERSION_MINOR >= 4
		1342	const_iv (REGISTER)
		1343	const_iv (DSYNC_DB)
		1344	const_iv (READ_COMMITTED)
		1345	const_iv (READ_UNCOMMITTED)
		1346	const_iv (REP_IGNORE)
		1347	const_iv (REP_LOCKOUT)
		1348	const_iv (REP_JOIN_FAILURE)
		1349	const_iv (FREE_SPACE)
		1350	const_iv (FREELIST_ONLY)
		1351	const_iv (VERB_REGISTER)
		1352	#endif
		1353	#if DB_VERSION_MINOR >= 5
		1354	const_iv (MULTIVERSION)
		1355	const_iv (TXN_SNAPSHOT)
		1356	#endif
		1357	#if DB_VERSION_MINOR >= 6
		1358	const_iv (PREV_DUP)
		1359	const_iv (PRIORITY_UNCHANGED)
		1360	const_iv (PRIORITY_VERY_LOW)
		1361	const_iv (PRIORITY_LOW)
		1362	const_iv (PRIORITY_DEFAULT)
		1363	const_iv (PRIORITY_HIGH)
		1364	const_iv (PRIORITY_VERY_HIGH)
		1365	const_iv (IGNORE_LEASE)
		1366	#endif
		1367	#if DB_VERSION_MINOR >= 7
		1368	//const_iv (MULTIPLE_KEY)
		1369	const_iv (LOG_DIRECT)
		1370	const_iv (LOG_DSYNC)
		1371	const_iv (LOG_AUTO_REMOVE)
		1372	const_iv (LOG_IN_MEMORY)
		1373	const_iv (LOG_ZERO)
		1374	#else
		1375	const_iv (DIRECT_LOG)
		1376	const_iv (LOG_AUTOREMOVE)
		1377	# if DB_VERSION_MINOR >= 3
		1378	const_iv (DSYNC_LOG)
		1379	const_iv (LOG_INMEMORY)
		1380	# endif
		1381	#endif
827	};	1382	};
828		1383
829	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1384	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
830	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1385	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
831		1386
832	create_pipe ();	1387	prepare_cb = &PL_sv_undef;
		1388
		1389	{
		1390	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1391	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1392
		1393	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1394	}
		1395
		1396	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1397
		1398	create_respipe ();
		1399
833	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1400	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1401	patch_errno ();
834	}	1402	}
835		1403
836	void	1404	void
837	max_poll_reqs (int nreqs)	1405	max_poll_reqs (int nreqs)
838	PROTOTYPE: $	1406	PROTOTYPE: $
…		…
911		1479
912	int	1480	int
913	poll_fileno ()	1481	poll_fileno ()
914	PROTOTYPE:	1482	PROTOTYPE:
915	CODE:	1483	CODE:
916	RETVAL = respipe [0];	1484	RETVAL = s_epipe_fd (&respipe);
917	OUTPUT:	1485	OUTPUT:
918	RETVAL	1486	RETVAL
919		1487
920	int	1488	int
921	poll_cb (...)	1489	poll_cb (...)
…		…
957		1525
958	int	1526	int
959	nthreads ()	1527	nthreads ()
960	PROTOTYPE:	1528	PROTOTYPE:
961	CODE:	1529	CODE:
962	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1530	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
963	RETVAL = started;	1531	RETVAL = started;
964	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1532	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
965	OUTPUT:	1533	OUTPUT:
966	RETVAL	1534	RETVAL
967		1535
968	void	1536	SV *
969	set_sync_prepare (SV *cb)	1537	set_sync_prepare (SV *cb)
970	PROTOTYPE: &	1538	PROTOTYPE: &
971	CODE:	1539	CODE:
972	SvREFCNT_dec (prepare_cb);	1540	RETVAL = prepare_cb;
973	prepare_cb = newSVsv (cb);	1541	prepare_cb = newSVsv (cb);
		1542	OUTPUT:
		1543	RETVAL
		1544
		1545	char *
		1546	strerror (int errorno = errno)
		1547	PROTOTYPE: ;$
		1548	CODE:
		1549	RETVAL = db_strerror (errorno);
		1550	OUTPUT:
		1551	RETVAL
		1552
		1553	void _on_next_submit (SV *cb)
		1554	CODE:
		1555	SvREFCNT_dec (on_next_submit);
		1556	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
974		1557
975	DB_ENV *	1558	DB_ENV *
976	db_env_create (U32 env_flags = 0)	1559	db_env_create (U32 env_flags = 0)
977	CODE:	1560	CODE:
978	{	1561	{
979	errno = db_env_create (&RETVAL, env_flags);	1562	errno = db_env_create (&RETVAL, env_flags);
980	if (errno)	1563	if (errno)
981	croak ("db_env_create: %s", db_strerror (errno));	1564	croak ("db_env_create: %s", db_strerror (errno));
		1565
		1566	if (0)
		1567	{
		1568	RETVAL->set_errcall (RETVAL, debug_errcall);
		1569	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1570	}
982	}	1571	}
983	OUTPUT:	1572	OUTPUT:
984	RETVAL	1573	RETVAL
985		1574
986	void	1575	void
987	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1576	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1577	PREINIT:
		1578	CALLBACK
988	CODE:	1579	CODE:
989	{	1580	{
990	dREQ (REQ_ENV_OPEN);	1581	dREQ (REQ_ENV_OPEN, 1);
991	req->env = env;	1582	req->env = env;
992	req->uint1 = open_flags | DB_THREAD;	1583	req->uint1 = open_flags | DB_THREAD;
993	req->int1 = mode;	1584	req->int1 = mode;
994	req->buf1 = strdup_ornull (db_home);	1585	req->buf1 = strdup_ornull (db_home);
995	REQ_SEND;	1586	REQ_SEND;
996	}	1587	}
997		1588
998	void	1589	void
999	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1590	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1591	PREINIT:
		1592	CALLBACK
1000	CODE:	1593	CODE:
1001	{	1594	{
1002	dREQ (REQ_ENV_CLOSE);	1595	dREQ (REQ_ENV_CLOSE, 0);
		1596	ptr_nuke (ST (0));
1003	req->env = env;	1597	req->env = env;
1004	req->uint1 = flags;	1598	req->uint1 = flags;
1005	REQ_SEND;	1599	REQ_SEND;
1006	}	1600	}
1007		1601
		1602	void
		1603	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1604	PREINIT:
		1605	CALLBACK
		1606	CODE:
		1607	{
		1608	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1609	req->env = env;
		1610	req->uint1 = kbyte;
		1611	req->int1 = min;
		1612	req->uint2 = flags;
		1613	REQ_SEND;
		1614	}
		1615
		1616	void
		1617	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1618	PREINIT:
		1619	CALLBACK
		1620	CODE:
		1621	{
		1622	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1623	req->env = env;
		1624	req->uint1 = flags;
		1625	req->uint2 = atype;
		1626	/* req->int2 = 0; dummy */
		1627	REQ_SEND;
		1628	}
		1629
		1630	void
		1631	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1632	PREINIT:
		1633	CALLBACK
		1634	CODE:
		1635	{
		1636	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1637	req->env = env;
		1638	REQ_SEND;
		1639	}
		1640
		1641	void
		1642	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1643	PREINIT:
		1644	CALLBACK
		1645	CODE:
		1646	{
		1647	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1648	req->env = env;
		1649	req->int1 = percent;
		1650	REQ_SEND;
		1651	}
		1652
		1653	void
		1654	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1655	PREINIT:
		1656	CALLBACK
		1657	CODE:
		1658	{
		1659	dREQ (REQ_ENV_DBREMOVE, 2);
		1660	req->env = env;
		1661	req->buf1 = strdup_ornull (file);
		1662	req->buf2 = strdup_ornull (database);
		1663	req->uint1 = flags;
		1664	REQ_SEND;
		1665	}
		1666
		1667	void
		1668	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)
		1669	PREINIT:
		1670	CALLBACK
		1671	CODE:
		1672	{
		1673	dREQ (REQ_ENV_DBRENAME, 2);
		1674	req->env = env;
		1675	req->buf1 = strdup_ornull (file);
		1676	req->buf2 = strdup_ornull (database);
		1677	req->buf3 = strdup_ornull (newname);
		1678	req->uint1 = flags;
		1679	REQ_SEND;
		1680	}
		1681
		1682	void
		1683	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1684	PREINIT:
		1685	CALLBACK
		1686	CODE:
		1687	{
		1688	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1689	req->sv1 = SvREFCNT_inc (listp);
		1690	req->env = env;
		1691	req->uint1 = flags;
		1692	REQ_SEND;
		1693	}
		1694
1008	DB *	1695	DB *
1009	db_create (DB_ENV *env = 0, U32 flags = 0)	1696	db_create (DB_ENV *env = 0, U32 flags = 0)
1010	CODE:	1697	CODE:
1011	{	1698	{
1012	errno = db_create (&RETVAL, env, flags);	1699	errno = db_create (&RETVAL, env, flags);
1013	if (errno)	1700	if (errno)
1014	croak ("db_env_create: %s", db_strerror (errno));	1701	croak ("db_create: %s", db_strerror (errno));
		1702
		1703	if (RETVAL)
		1704	RETVAL->app_private = (void *)newSVsv (ST (0));
1015	}	1705	}
1016	OUTPUT:	1706	OUTPUT:
1017	RETVAL	1707	RETVAL
1018		1708
1019	void	1709	void
1020	db_open (DB *db, DB_TXN *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1710	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1711	PREINIT:
		1712	CALLBACK
1021	CODE:	1713	CODE:
1022	{	1714	{
1023	dREQ (REQ_DB_OPEN);	1715	dREQ (REQ_DB_OPEN, 2);
1024	req->db = db;	1716	req->db = db;
1025	req->txn = txnid;	1717	req->txn = txnid;
1026	req->buf1 = strdup_ornull (file);	1718	req->buf1 = strdup_ornull (file);
1027	req->buf2 = strdup_ornull (database);	1719	req->buf2 = strdup_ornull (database);
1028	req->int1 = type;	1720	req->int1 = type;
…		…
1030	req->int2 = mode;	1722	req->int2 = mode;
1031	REQ_SEND;	1723	REQ_SEND;
1032	}	1724	}
1033		1725
1034	void	1726	void
1035	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1727	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1728	PREINIT:
		1729	CALLBACK
1036	CODE:	1730	CODE:
1037	{	1731	{
1038	dREQ (REQ_DB_CLOSE);	1732	dREQ (REQ_DB_CLOSE, 0);
		1733	ptr_nuke (ST (0));
1039	req->db = db;	1734	req->db = db;
1040	req->uint1 = flags;	1735	req->uint1 = flags;
		1736	req->sv1 = (SV *)db->app_private;
1041	REQ_SEND;	1737	REQ_SEND;
1042	}	1738	}
1043		1739
		1740	#if DB_VERSION_MINOR >= 4
		1741
1044	void	1742	void
1045	db_compact (DB *db, DB_TXN *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef)	1743	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)
		1744	PREINIT:
		1745	CALLBACK
1046	CODE:	1746	CODE:
1047	{	1747	{
1048	dREQ (REQ_DB_COMPACT);	1748	dREQ (REQ_DB_COMPACT, 2);
1049	req->db = db;	1749	req->db = db;
1050	req->txn = txn;	1750	req->txn = txn;
1051	set_dbt (&req->dbt1, start);	1751	if (start) sv_to_dbt (&req->dbt1, start);
1052	set_dbt (&req->dbt2, stop);	1752	if (stop ) sv_to_dbt (&req->dbt2, stop );
1053	req->uint1 = flags;	1753	req->uint1 = flags;
1054	REQ_SEND;	1754	REQ_SEND;
1055	}	1755	}
1056		1756
		1757	#endif
		1758
1057	void	1759	void
1058	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1760	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1761	PREINIT:
		1762	CALLBACK
1059	CODE:	1763	CODE:
1060	{	1764	{
1061	dREQ (REQ_DB_SYNC);	1765	dREQ (REQ_DB_SYNC, 1);
1062	req->db = db;	1766	req->db = db;
1063	req->uint1 = flags;	1767	req->uint1 = flags;
1064	REQ_SEND;	1768	REQ_SEND;
1065	}	1769	}
1066		1770
1067	void	1771	void
1068	db_put (DB *db, DB_TXN *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1772	db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
		1773	PREINIT:
		1774	CALLBACK
1069	CODE:	1775	CODE:
1070	{	1776	{
1071	dREQ (REQ_DB_PUT);	1777	dREQ (REQ_DB_VERIFY, 1);
		1778	ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
1072	req->db = db;	1779	req->db = db;
1073	req->txn = 0;	1780	req->buf1 = strdup (file);
1074	set_dbt (&req->dbt1, key);	1781	req->buf2 = strdup_ornull (database);
1075	set_dbt (&req->dbt2, data);
1076	req->uint1 = flags;	1782	req->uint1 = flags;
1077	REQ_SEND;	1783	REQ_SEND;
1078	}	1784	}
1079		1785
		1786	void
		1787	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1788	PREINIT:
		1789	CALLBACK
		1790	CODE:
		1791	{
		1792	dREQ (REQ_DB_UPGRADE, 1);
		1793	req->db = db;
		1794	req->buf1 = strdup (file);
		1795	req->uint1 = flags;
		1796	REQ_SEND;
		1797	}
		1798
		1799	void
		1800	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1801	PREINIT:
		1802	CALLBACK
		1803	CODE:
		1804	{
		1805	dREQ (REQ_DB_KEY_RANGE, 2);
		1806	req->db = db;
		1807	req->txn = txn;
		1808	sv_to_dbt (&req->dbt1, key);
		1809	req->uint1 = flags;
		1810	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1811	REQ_SEND;
		1812	}
		1813
		1814	void
		1815	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1816	PREINIT:
		1817	CALLBACK
		1818	CODE:
		1819	{
		1820	dREQ (REQ_DB_PUT, 2);
		1821	req->db = db;
		1822	req->txn = txn;
		1823	sv_to_dbt (&req->dbt1, key);
		1824	sv_to_dbt (&req->dbt2, data);
		1825	req->uint1 = flags;
		1826	REQ_SEND;
		1827	}
		1828
		1829	#if DB_VERSION_MINOR >= 6
		1830
		1831	void
		1832	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1833	PREINIT:
		1834	CALLBACK
		1835	CODE:
		1836	{
		1837	dREQ (REQ_DB_EXISTS, 2);
		1838	req->db = db;
		1839	req->txn = txn;
		1840	req->uint1 = flags;
		1841	sv_to_dbt (&req->dbt1, key);
		1842	REQ_SEND;
		1843	}
		1844
		1845	#endif
		1846
		1847	void
		1848	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1849	PREINIT:
		1850	CALLBACK
		1851	CODE:
		1852	{
		1853	//TODO: key is somtimesmutable
		1854	dREQ (REQ_DB_GET, 2);
		1855	req->db = db;
		1856	req->txn = txn;
		1857	req->uint1 = flags;
		1858	sv_to_dbt (&req->dbt1, key);
		1859	req->dbt3.flags = DB_DBT_MALLOC;
		1860	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1861	REQ_SEND;
		1862	}
		1863
		1864	void
		1865	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1866	PREINIT:
		1867	CALLBACK
		1868	CODE:
		1869	{
		1870	//TODO: key is somtimesmutable
		1871	dREQ (REQ_DB_PGET, 2);
		1872	req->db = db;
		1873	req->txn = txn;
		1874	req->uint1 = flags;
		1875
		1876	sv_to_dbt (&req->dbt1, key);
		1877
		1878	req->dbt2.flags = DB_DBT_MALLOC;
		1879	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1880
		1881	req->dbt3.flags = DB_DBT_MALLOC;
		1882	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1883	REQ_SEND;
		1884	}
		1885
		1886	void
		1887	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1888	PREINIT:
		1889	CALLBACK
		1890	CODE:
		1891	{
		1892	dREQ (REQ_DB_DEL, 2);
		1893	req->db = db;
		1894	req->txn = txn;
		1895	req->uint1 = flags;
		1896	sv_to_dbt (&req->dbt1, key);
		1897	REQ_SEND;
		1898	}
		1899
		1900	void
		1901	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1902	PREINIT:
		1903	CALLBACK
		1904	CODE:
		1905	{
		1906	dREQ (REQ_TXN_COMMIT, 0);
		1907	ptr_nuke (ST (0));
		1908	req->txn = txn;
		1909	req->uint1 = flags;
		1910	REQ_SEND;
		1911	}
		1912
		1913	void
		1914	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1915	PREINIT:
		1916	CALLBACK
		1917	CODE:
		1918	{
		1919	dREQ (REQ_TXN_ABORT, 0);
		1920	ptr_nuke (ST (0));
		1921	req->txn = txn;
		1922	REQ_SEND;
		1923	}
		1924
		1925	void
		1926	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1927	PREINIT:
		1928	CALLBACK
		1929	CODE:
		1930	{
		1931	dREQ (REQ_TXN_FINISH, 0);
		1932	ptr_nuke (ST (0));
		1933	req->txn = txn;
		1934	req->uint1 = flags;
		1935	REQ_SEND;
		1936	}
		1937
		1938	void
		1939	db_c_close (DBC *dbc, SV *callback = 0)
		1940	PREINIT:
		1941	CALLBACK
		1942	CODE:
		1943	{
		1944	dREQ (REQ_C_CLOSE, 0);
		1945	ptr_nuke (ST (0));
		1946	req->dbc = dbc;
		1947	REQ_SEND;
		1948	}
		1949
		1950	void
		1951	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1952	PREINIT:
		1953	CALLBACK
		1954	CODE:
		1955	{
		1956	dREQ (REQ_C_COUNT, 1);
		1957	req->dbc = dbc;
		1958	req->sv1 = SvREFCNT_inc (count);
		1959	REQ_SEND;
		1960	}
		1961
		1962	void
		1963	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1964	PREINIT:
		1965	CALLBACK
		1966	CODE:
		1967	{
		1968	dREQ (REQ_C_PUT, 1);
		1969	req->dbc = dbc;
		1970	sv_to_dbt (&req->dbt1, key);
		1971	sv_to_dbt (&req->dbt2, data);
		1972	req->uint1 = flags;
		1973	REQ_SEND;
		1974	}
		1975
		1976	void
		1977	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1978	PREINIT:
		1979	CALLBACK
		1980	CODE:
		1981	{
		1982	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		1983	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		1984	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		1985	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		1986	"key",
		1987	"BDB::db_c_get");
		1988
		1989	{
		1990	dREQ (REQ_C_GET, 1);
		1991	req->dbc = dbc;
		1992	req->uint1 = flags;
		1993	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		1994	sv_to_dbt (&req->dbt1, key);
		1995	else
		1996	{
		1997	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		1998	sv_to_dbt (&req->dbt1, key);
		1999	else
		2000	req->dbt1.flags = DB_DBT_MALLOC;
		2001
		2002	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2003	}
		2004
		2005	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2006	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2007	sv_to_dbt (&req->dbt3, data);
		2008	else
		2009	req->dbt3.flags = DB_DBT_MALLOC;
		2010
		2011	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2012	REQ_SEND;
		2013	}
		2014	}
		2015
		2016	void
		2017	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2018	PREINIT:
		2019	CALLBACK
		2020	CODE:
		2021	{
		2022	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2023	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2024	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2025	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2026	"key",
		2027	"BDB::db_c_pget");
		2028
		2029	{
		2030	dREQ (REQ_C_PGET, 1);
		2031	req->dbc = dbc;
		2032	req->uint1 = flags;
		2033	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2034	sv_to_dbt (&req->dbt1, key);
		2035	else
		2036	{
		2037	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2038	sv_to_dbt (&req->dbt1, key);
		2039	else
		2040	req->dbt1.flags = DB_DBT_MALLOC;
		2041
		2042	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2043	}
		2044
		2045	req->dbt2.flags = DB_DBT_MALLOC;
		2046	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2047
		2048	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2049	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2050	sv_to_dbt (&req->dbt3, data);
		2051	else
		2052	req->dbt3.flags = DB_DBT_MALLOC;
		2053
		2054	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2055	REQ_SEND;
		2056	}
		2057	}
		2058
		2059	void
		2060	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2061	PREINIT:
		2062	CALLBACK
		2063	CODE:
		2064	{
		2065	dREQ (REQ_C_DEL, 1);
		2066	req->dbc = dbc;
		2067	req->uint1 = flags;
		2068	REQ_SEND;
		2069	}
		2070
		2071
		2072	#if DB_VERSION_MINOR >= 3
		2073
		2074	void
		2075	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2076	PREINIT:
		2077	CALLBACK
		2078	CODE:
		2079	{
		2080	dREQ (REQ_SEQ_OPEN, 2);
		2081	req->seq = seq;
		2082	req->txn = txnid;
		2083	req->uint1 = flags | DB_THREAD;
		2084	sv_to_dbt (&req->dbt1, key);
		2085	REQ_SEND;
		2086	}
		2087
		2088	void
		2089	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2090	PREINIT:
		2091	CALLBACK
		2092	CODE:
		2093	{
		2094	dREQ (REQ_SEQ_CLOSE, 0);
		2095	ptr_nuke (ST (0));
		2096	req->seq = seq;
		2097	req->uint1 = flags;
		2098	REQ_SEND;
		2099	}
		2100
		2101	void
		2102	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2103	PREINIT:
		2104	CALLBACK
		2105	CODE:
		2106	{
		2107	dREQ (REQ_SEQ_GET, 2);
		2108	req->seq = seq;
		2109	req->txn = txnid;
		2110	req->int1 = delta;
		2111	req->uint1 = flags;
		2112	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2113	REQ_SEND;
		2114	}
		2115
		2116	void
		2117	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2118	PREINIT:
		2119	CALLBACK
		2120	CODE:
		2121	{
		2122	dREQ (REQ_SEQ_REMOVE, 2);
		2123	req->seq = seq;
		2124	req->txn = txnid;
		2125	req->uint1 = flags;
		2126	REQ_SEND;
		2127	}
		2128
		2129	#endif
		2130
1080		2131
1081	MODULE = BDB PACKAGE = BDB::Env	2132	MODULE = BDB PACKAGE = BDB::Env
1082		2133
		2134	void
		2135	DESTROY (DB_ENV_ornuked *env)
		2136	CODE:
		2137	if (env)
		2138	env->close (env, 0);
		2139
		2140	int set_data_dir (DB_ENV *env, const char *dir)
		2141	CODE:
		2142	RETVAL = env->set_data_dir (env, dir);
		2143	OUTPUT:
		2144	RETVAL
		2145
		2146	int set_tmp_dir (DB_ENV *env, const char *dir)
		2147	CODE:
		2148	RETVAL = env->set_tmp_dir (env, dir);
		2149	OUTPUT:
		2150	RETVAL
		2151
		2152	int set_lg_dir (DB_ENV *env, const char *dir)
		2153	CODE:
		2154	RETVAL = env->set_lg_dir (env, dir);
		2155	OUTPUT:
		2156	RETVAL
		2157
		2158	int set_shm_key (DB_ENV *env, long shm_key)
		2159	CODE:
		2160	RETVAL = env->set_shm_key (env, shm_key);
		2161	OUTPUT:
		2162	RETVAL
		2163
1083	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2164	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1084	CODE:	2165	CODE:
1085	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	2166	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1086	OUTPUT:	2167	OUTPUT:
1087	RETVAL	2168	RETVAL
1088		2169
1089	int set_flags (DB_ENV *env, U32 flags, int onoff)	2170	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1090	CODE:	2171	CODE:
1091	RETVAL = env->set_flags (env, flags, onoff);	2172	RETVAL = env->set_flags (env, flags, onoff);
1092	OUTPUT:	2173	OUTPUT:
1093	RETVAL	2174	RETVAL
1094		2175
		2176	#if DB_VERSION_MINOR >= 7
		2177
		2178	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2179	CODE:
		2180	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2181	OUTPUT:
		2182	RETVAL
		2183
		2184	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2185	CODE:
		2186	RETVAL = env->log_set_config (env, flags, onoff);
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	#endif
		2191
		2192
		2193	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2194	CODE:
		2195	env->set_errfile (env, errfile);
		2196
		2197	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2198	CODE:
		2199	env->set_msgfile (env, msgfile);
		2200
		2201	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2202	CODE:
		2203	RETVAL = env->set_verbose (env, which, onoff);
		2204	OUTPUT:
		2205	RETVAL
		2206
1095	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2207	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1096	CODE:	2208	CODE:
1097	RETVAL = env->set_encrypt (env, password, flags);	2209	RETVAL = env->set_encrypt (env, password, flags);
1098	OUTPUT:	2210	OUTPUT:
1099	RETVAL	2211	RETVAL
1100		2212
1101	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2213	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1102	CODE:	2214	CODE:
1103	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2215	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1104	OUTPUT:	2216	OUTPUT:
1105	RETVAL	2217	RETVAL
1106		2218
		2219	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2220	CODE:
		2221	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2222	OUTPUT:
		2223	RETVAL
		2224
		2225	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2226	CODE:
		2227	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2228	OUTPUT:
		2229	RETVAL
		2230
		2231	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2232	CODE:
		2233	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2234	OUTPUT:
		2235	RETVAL
		2236
		2237	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2238	CODE:
		2239	RETVAL = env->set_lk_detect (env, detect);
		2240	OUTPUT:
		2241	RETVAL
		2242
		2243	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2244	CODE:
		2245	RETVAL = env->set_lk_max_lockers (env, max);
		2246	OUTPUT:
		2247	RETVAL
		2248
		2249	int set_lk_max_locks (DB_ENV *env, U32 max)
		2250	CODE:
		2251	RETVAL = env->set_lk_max_locks (env, max);
		2252	OUTPUT:
		2253	RETVAL
		2254
		2255	int set_lk_max_objects (DB_ENV *env, U32 max)
		2256	CODE:
		2257	RETVAL = env->set_lk_max_objects (env, max);
		2258	OUTPUT:
		2259	RETVAL
		2260
		2261	int set_lg_bsize (DB_ENV *env, U32 max)
		2262	CODE:
		2263	RETVAL = env->set_lg_bsize (env, max);
		2264	OUTPUT:
		2265	RETVAL
		2266
		2267	int set_lg_max (DB_ENV *env, U32 max)
		2268	CODE:
		2269	RETVAL = env->set_lg_max (env, max);
		2270	OUTPUT:
		2271	RETVAL
		2272
		2273	#if DB_VERSION_MINOR >= 4
		2274
		2275	int mutex_set_max (DB_ENV *env, U32 max)
		2276	CODE:
		2277	RETVAL = env->mutex_set_max (env, max);
		2278	OUTPUT:
		2279	RETVAL
		2280
		2281	int mutex_set_increment (DB_ENV *env, U32 increment)
		2282	CODE:
		2283	RETVAL = env->mutex_set_increment (env, increment);
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2288	CODE:
		2289	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2290	OUTPUT:
		2291	RETVAL
		2292
		2293	int mutex_set_align (DB_ENV *env, U32 align)
		2294	CODE:
		2295	RETVAL = env->mutex_set_align (env, align);
		2296	OUTPUT:
		2297	RETVAL
		2298
		2299	#endif
		2300
		2301	DB_TXN *
		2302	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2303	CODE:
		2304	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2305	if (errno)
		2306	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2307	OUTPUT:
		2308	RETVAL
		2309
		2310	#if DB_VERSION_MINOR >= 5
		2311
		2312	DB_TXN *
		2313	cdsgroup_begin (DB_ENV *env)
		2314	CODE:
		2315	errno = env->cdsgroup_begin (env, &RETVAL);
		2316	if (errno)
		2317	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2318	OUTPUT:
		2319	RETVAL
		2320
		2321	#endif
1107		2322
1108	MODULE = BDB PACKAGE = BDB::Db	2323	MODULE = BDB PACKAGE = BDB::Db
1109		2324
		2325	void
		2326	DESTROY (DB_ornuked *db)
		2327	CODE:
		2328	if (db)
		2329	{
		2330	SV *env = (SV *)db->app_private;
		2331	db->close (db, 0);
		2332	SvREFCNT_dec (env);
		2333	}
		2334
1110	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2335	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1111	CODE:	2336	CODE:
1112	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2337	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1113	OUTPUT:	2338	OUTPUT:
1114	RETVAL	2339	RETVAL
1115		2340
		2341	int set_pagesize (DB *db, U32 pagesize)
		2342	CODE:
		2343	RETVAL = db->set_pagesize (db, pagesize);
		2344	OUTPUT:
		2345	RETVAL
		2346
1116	int set_flags (DB *db, U32 flags);	2347	int set_flags (DB *db, U32 flags)
1117	CODE:	2348	CODE:
1118	RETVAL = db->set_flags (db, flags);	2349	RETVAL = db->set_flags (db, flags);
1119	OUTPUT:	2350	OUTPUT:
1120	RETVAL	2351	RETVAL
1121		2352
…		…
1129	CODE:	2360	CODE:
1130	RETVAL = db->set_lorder (db, lorder);	2361	RETVAL = db->set_lorder (db, lorder);
1131	OUTPUT:	2362	OUTPUT:
1132	RETVAL	2363	RETVAL
1133		2364
1134
1135	int set_bt_minkey (DB *db, U32 minkey)	2365	int set_bt_minkey (DB *db, U32 minkey)
1136	CODE:	2366	CODE:
1137	RETVAL = db->set_bt_minkey (db, minkey);	2367	RETVAL = db->set_bt_minkey (db, minkey);
1138	OUTPUT:	2368	OUTPUT:
1139	RETVAL	2369	RETVAL
1140		2370
1141	int set_re_delim(DB *db, int delim);	2371	int set_re_delim (DB *db, int delim)
1142	CODE:	2372	CODE:
1143	RETVAL = db->set_re_delim (db, delim);	2373	RETVAL = db->set_re_delim (db, delim);
1144	OUTPUT:	2374	OUTPUT:
1145	RETVAL	2375	RETVAL
1146		2376
…		…
1178	CODE:	2408	CODE:
1179	RETVAL = db->set_q_extentsize (db, extentsize);	2409	RETVAL = db->set_q_extentsize (db, extentsize);
1180	OUTPUT:	2410	OUTPUT:
1181	RETVAL	2411	RETVAL
1182		2412
		2413	DBC *
		2414	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2415	CODE:
		2416	errno = db->cursor (db, txn, &RETVAL, flags);
		2417	if (errno)
		2418	croak ("DB->cursor: %s", db_strerror (errno));
		2419	OUTPUT:
		2420	RETVAL
1183		2421
		2422	#if DB_VERSION_MINOR >= 3
		2423
		2424	DB_SEQUENCE *
		2425	sequence (DB *db, U32 flags = 0)
		2426	CODE:
		2427	{
		2428	errno = db_sequence_create (&RETVAL, db, flags);
		2429	if (errno)
		2430	croak ("db_sequence_create: %s", db_strerror (errno));
		2431	}
		2432	OUTPUT:
		2433	RETVAL
		2434
		2435	#endif
		2436
		2437
		2438	MODULE = BDB PACKAGE = BDB::Txn
		2439
		2440	void
		2441	DESTROY (DB_TXN_ornuked *txn)
		2442	CODE:
		2443	if (txn)
		2444	txn->abort (txn);
		2445
		2446	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2447	CODE:
		2448	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2449	OUTPUT:
		2450	RETVAL
		2451
		2452	int failed (DB_TXN *txn)
		2453	CODE:
		2454	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2455	OUTPUT:
		2456	RETVAL
		2457
		2458
		2459	MODULE = BDB PACKAGE = BDB::Cursor
		2460
		2461	void
		2462	DESTROY (DBC_ornuked *dbc)
		2463	CODE:
		2464	if (dbc)
		2465	dbc->c_close (dbc);
		2466
		2467	#if DB_VERSION_MINOR >= 6
		2468
		2469	int set_priority (DBC *dbc, int priority)
		2470	CODE:
		2471	dbc->set_priority (dbc, priority);
		2472
		2473	#endif
		2474
		2475	#if DB_VERSION_MINOR >= 3
		2476
		2477	MODULE = BDB PACKAGE = BDB::Sequence
		2478
		2479	void
		2480	DESTROY (DB_SEQUENCE_ornuked *seq)
		2481	CODE:
		2482	if (seq)
		2483	seq->close (seq, 0);
		2484
		2485	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2486	CODE:
		2487	RETVAL = seq->initial_value (seq, value);
		2488	OUTPUT:
		2489	RETVAL
		2490
		2491	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2492	CODE:
		2493	RETVAL = seq->set_cachesize (seq, size);
		2494	OUTPUT:
		2495	RETVAL
		2496
		2497	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2498	CODE:
		2499	RETVAL = seq->set_flags (seq, flags);
		2500	OUTPUT:
		2501	RETVAL
		2502
		2503	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2504	CODE:
		2505	RETVAL = seq->set_range (seq, min, max);
		2506	OUTPUT:
		2507	RETVAL
		2508
		2509	#endif
		2510
		2511

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