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Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.65 by root, Fri Jan 2 22:37:51 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	// perl stupidly defines these as macros, breaking
		12	// lots and lots of code.
		13	#undef open
		14	#undef close
		15	#undef abort
		16	#undef malloc
		17	#undef free
		18	#undef send
18		19
19	#include <stddef.h>	20	#include <stddef.h>
20	#include <stdlib.h>	21	#include <stdlib.h>
21	#include <errno.h>	22	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	23	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	24	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	25	#include <fcntl.h>
29	#include <signal.h>	26
		27	#ifndef _WIN32
		28	# include <sys/time.h>
		29	# include <unistd.h>
		30	#endif
		31
30	#include <sched.h>	32	#include <db.h>
		33
		34	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		35	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		36	#endif
31		37
32	/* number of seconds after which idle threads exit */	38	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	39	#define IDLE_TIMEOUT 10
34		40
35	/* wether word reads are potentially non-atomic.	41	typedef SV SV_mutable;
36	* this is conservatice, likely most arches this runs	42
37	* on have atomic word read/writes.	43	typedef DB_ENV DB_ENV_ornull;
38	*/	44	typedef DB_TXN DB_TXN_ornull;
39	#ifndef WORDACCESS_UNSAFE	45	typedef DBC DBC_ornull;
40	# if __i386 || __x86_64	46	typedef DB DB_ornull;
41	# define WORDACCESS_UNSAFE 0	47
42	# else	48	typedef DB_ENV DB_ENV_ornuked;
43	# define WORDACCESS_UNSAFE 1	49	typedef DB_TXN DB_TXN_ornuked;
		50	typedef DBC DBC_ornuked;
		51	typedef DB DB_ornuked;
		52
		53	#if DB_VERSION_MINOR >= 3
		54	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		55	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
44	# endif	56	#endif
45	#endif
46		57
47	typedef SV SV8; /* byte-sv, used for argument-checking */	58	typedef char *bdb_filename;
48		59
		60	static SV *prepare_cb;
		61
		62	#if DB_VERSION_MINOR >= 6
		63	# define c_close close
		64	# define c_count count
		65	# define c_del del
		66	# define c_dup dup
		67	# define c_get get
		68	# define c_pget pget
		69	# define c_put put
		70	#endif
		71
		72	static char *
		73	get_bdb_filename (SV *sv)
		74	{
		75	if (!SvOK (sv))
		76	return 0;
		77
		78	#if _WIN32
		79	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		80	{
		81	STRLEN len;
		82	char *src = SvPVbyte (sv, len);
		83	SV *t1 = sv_newmortal ();
		84	SV *t2 = sv_newmortal ();
		85
		86	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		87	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		88
		89	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		90	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		91	SvPOK_only (t2);
		92	SvPVX (t2)[len] = 0;
		93	SvCUR_set (t2, len);
		94
		95	return SvPVX (t2);
		96	}
		97	#else
		98	return SvPVbyte_nolen (sv);
		99	#endif
		100	}
		101
		102	static void
		103	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		104	{
		105	printf ("err[%s]\n", msg);
		106	}
		107
		108	static void
		109	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		110	{
		111	printf ("msg[%s]\n", msg);
		112	}
		113
		114	static char *
		115	strdup_ornull (const char *s)
		116	{
		117	return s ? strdup (s) : 0;
		118	}
		119
		120	static void
		121	sv_to_dbt (DBT *dbt, SV *sv)
		122	{
		123	STRLEN len;
		124	char *data = SvPVbyte (sv, len);
		125
		126	dbt->data = malloc (len);
		127	memcpy (dbt->data, data, len);
		128	dbt->size = len;
		129	dbt->flags = DB_DBT_REALLOC;
		130	}
		131
		132	static void
		133	dbt_to_sv (SV *sv, DBT *dbt)
		134	{
		135	if (sv)
		136	{
		137	SvREADONLY_off (sv);
		138
		139	if (dbt->data)
		140	sv_setpvn_mg (sv, dbt->data, dbt->size);
		141	else
		142	sv_setsv_mg (sv, &PL_sv_undef);
		143
		144	SvREFCNT_dec (sv);
		145	}
		146
		147	free (dbt->data);
		148	}
		149
49	enum {	150	enum {
50	REQ_QUIT,	151	REQ_QUIT,
		152	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		153	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		154	REQ_ENV_LOG_ARCHIVE,
		155	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		156	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		157	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		158	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		159	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	160	};
52		161
53	#define AIO_CB \	162	typedef struct bdb_cb
		163	{
54	struct aio_cb *volatile next; \	164	struct bdb_cb *volatile next;
55	SV *callback; \	165	SV *callback;
56	int type, pri	166	int type, pri, result;
57		167
58	typedef struct aio_cb	168	DB_ENV *env;
59	{	169	DB *db;
60	AIO_CB;	170	DB_TXN *txn;
61	} aio_cb;	171	DBC *dbc;
62		172
		173	UV uv1;
		174	int int1, int2;
		175	U32 uint1, uint2;
		176	char *buf1, *buf2, *buf3;
		177	SV *sv1, *sv2, *sv3;
		178
		179	DBT dbt1, dbt2, dbt3;
		180	DB_KEY_RANGE key_range;
		181	#if DB_VERSION_MINOR >= 3
		182	DB_SEQUENCE *seq;
		183	db_seq_t seq_t;
		184	#endif
		185
		186	SV *rsv1, *rsv2; // keep some request objects alive
		187	} bdb_cb;
		188
63	typedef aio_cb *aio_req;	189	typedef bdb_cb *bdb_req;
64		190
65	enum {	191	enum {
66	PRI_MIN = -4,	192	PRI_MIN = -4,
67	PRI_MAX = 4,	193	PRI_MAX = 4,
68		194
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	197	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	198	};
73		199
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	200	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		201
		202	static SV *on_next_submit;
		203
76	static unsigned int max_poll_time = 0;	204	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	205	static unsigned int max_poll_reqs = 0;
78		206
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	207	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	208	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		213
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	214	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		215
88	static unsigned int started, idle, wanted;	216	static unsigned int started, idle, wanted;
89		217
90	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
91	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
92	#else
93	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
94	#endif
95
96	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
97	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
98
99	/* worker threads management */	218	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	219	static mutex_t wrklock = X_MUTEX_INIT;
101		220
102	typedef struct worker {	221	typedef struct worker {
103	/* locked by wrklock */	222	/* locked by wrklock */
104	struct worker *prev, *next;	223	struct worker *prev, *next;
105		224
106	pthread_t tid;	225	thread_t tid;
107		226
108	/* locked by reslock, reqlock or wrklock */	227	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	228	bdb_req req; /* currently processed request */
110	void *dbuf;	229	void *dbuf;
111	DIR *dirp;	230	DIR *dirp;
112	} worker;	231	} worker;
113		232
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	233	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	245	}
127		246
128	static volatile unsigned int nreqs, nready, npending;	247	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	248	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	249	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	250	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		251
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	252	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	253	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	254	static cond_t reqwait = X_COND_INIT;
136		255
137	#if WORDACCESS_UNSAFE	256	#if WORDACCESS_UNSAFE
138		257
139	static unsigned int get_nready ()	258	static unsigned int get_nready (void)
140	{	259	{
141	unsigned int retval;	260	unsigned int retval;
142		261
143	LOCK (reqlock);	262	X_LOCK (reqlock);
144	retval = nready;	263	retval = nready;
145	UNLOCK (reqlock);	264	X_UNLOCK (reqlock);
146		265
147	return retval;	266	return retval;
148	}	267	}
149		268
150	static unsigned int get_npending ()	269	static unsigned int get_npending (void)
151	{	270	{
152	unsigned int retval;	271	unsigned int retval;
153		272
154	LOCK (reslock);	273	X_LOCK (reslock);
155	retval = npending;	274	retval = npending;
156	UNLOCK (reslock);	275	X_UNLOCK (reslock);
157		276
158	return retval;	277	return retval;
159	}	278	}
160		279
161	static unsigned int get_nthreads ()	280	static unsigned int get_nthreads (void)
162	{	281	{
163	unsigned int retval;	282	unsigned int retval;
164		283
165	LOCK (wrklock);	284	X_LOCK (wrklock);
166	retval = started;	285	retval = started;
167	UNLOCK (wrklock);	286	X_UNLOCK (wrklock);
168		287
169	return retval;	288	return retval;
170	}	289	}
171		290
172	#else	291	#else
…		…
181	* a somewhat faster data structure might be nice, but	300	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	301	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	302	* per shift, the most expensive operation.
184	*/	303	*/
185	typedef struct {	304	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	305	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	306	int size;
188	} reqq;	307	} reqq;
189		308
190	static reqq req_queue;	309	static reqq req_queue;
191	static reqq res_queue;	310	static reqq res_queue;
192		311
193	int reqq_push (reqq *q, aio_req req)	312	int reqq_push (reqq *q, bdb_req req)
194	{	313	{
195	int pri = req->pri;	314	int pri = req->pri;
196	req->next = 0;	315	req->next = 0;
197		316
198	if (q->qe[pri])	317	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	323	q->qe[pri] = q->qs[pri] = req;
205		324
206	return q->size++;	325	return q->size++;
207	}	326	}
208		327
209	aio_req reqq_shift (reqq *q)	328	bdb_req reqq_shift (reqq *q)
210	{	329	{
211	int pri;	330	int pri;
212		331
213	if (!q->size)	332	if (!q->size)
214	return 0;	333	return 0;
215		334
216	--q->size;	335	--q->size;
217		336
218	for (pri = NUM_PRI; pri--; )	337	for (pri = NUM_PRI; pri--; )
219	{	338	{
220	aio_req req = q->qs[pri];	339	bdb_req req = q->qs[pri];
221		340
222	if (req)	341	if (req)
223	{	342	{
224	if (!(q->qs[pri] = req->next))	343	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	344	q->qe[pri] = 0;
…		…
229	}	348	}
230		349
231	abort ();	350	abort ();
232	}	351	}
233		352
234	static int poll_cb ();	353	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	354	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);
238		355
239	static int req_invoke (aio_req req)	356	static int req_invoke (bdb_req req)
240	{	357	{
241	dSP;	358	switch (req->type)
242
243	if (SvOK (req->callback))
244	{	359	{
		360	case REQ_DB_CLOSE:
		361	SvREFCNT_dec (req->sv1);
		362	break;
		363
		364	case REQ_DB_GET:
		365	case REQ_DB_PGET:
		366	case REQ_C_GET:
		367	case REQ_C_PGET:
		368	case REQ_DB_PUT:
		369	case REQ_C_PUT:
		370	dbt_to_sv (req->sv1, &req->dbt1);
		371	dbt_to_sv (req->sv2, &req->dbt2);
		372	dbt_to_sv (req->sv3, &req->dbt3);
		373	break;
		374
		375	case REQ_DB_KEY_RANGE:
		376	{
		377	AV *av = newAV ();
		378
		379	av_push (av, newSVnv (req->key_range.less));
		380	av_push (av, newSVnv (req->key_range.equal));
		381	av_push (av, newSVnv (req->key_range.greater));
		382
		383	av = (AV *)newRV_noinc ((SV *)av);
		384
		385	SvREADONLY_off (req->sv1);
		386	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		387	SvREFCNT_dec (av);
		388	SvREFCNT_dec (req->sv1);
		389	}
		390	break;
		391
		392	#if DB_VERSION_MINOR >= 3
		393	case REQ_SEQ_GET:
		394	SvREADONLY_off (req->sv1);
		395
		396	if (sizeof (IV) > 4)
		397	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		398	else
		399	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		400
		401	SvREFCNT_dec (req->sv1);
		402	break;
		403	#endif
		404
		405	case REQ_ENV_LOG_ARCHIVE:
		406	{
		407	AV *av = newAV ();
		408	char **listp = (char **)req->buf1;
		409
		410	if (listp)
		411	while (*listp)
		412	av_push (av, newSVpv (*listp, 0)), ++listp;
		413
		414	av = (AV *)newRV_noinc ((SV *)av);
		415
		416	SvREADONLY_off (req->sv1);
		417	sv_setsv_mg (req->sv1, (SV *)av);
		418	SvREFCNT_dec (av);
		419	SvREFCNT_dec (req->sv1);
		420	}
		421	break;
		422	}
		423
		424	errno = req->result;
		425
		426	if (req->callback)
		427	{
		428	dSP;
		429
245	ENTER;	430	ENTER;
246	SAVETMPS;	431	SAVETMPS;
247	PUSHMARK (SP);	432	PUSHMARK (SP);
248	EXTEND (SP, 1);
249
250	switch (req->type)
251	{
252	}
253		433
254	PUTBACK;	434	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	435	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	436	SPAGAIN;
257		437
258	FREETMPS;	438	FREETMPS;
259	LEAVE;	439	LEAVE;
		440
		441	return !SvTRUE (ERRSV);
260	}	442	}
261		443
262	return !SvTRUE (ERRSV);	444	return 1;
263	}	445	}
264		446
265	static void req_free (aio_req req)	447	static void req_free (bdb_req req)
266	{	448	{
		449	SvREFCNT_dec (req->callback);
		450
		451	SvREFCNT_dec (req->rsv1);
		452	SvREFCNT_dec (req->rsv2);
		453
		454	free (req->buf1);
		455	free (req->buf2);
		456	free (req->buf3);
		457
267	Safefree (req);	458	Safefree (req);
268	}	459	}
269		460
270	static void *aio_proc(void *arg);	461	#ifdef USE_SOCKETS_AS_HANDLES
		462	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		463	#else
		464	# define EV_SELECT_IS_WINSOCKET 1
		465	# define TO_SOCKET(x) (x)
		466	#endif
		467
		468	#ifdef _WIN32
		469	/* taken verbatim from libev's ev_win32.c */
		470	/* oh, the humanity! */
		471	static int
		472	ev_pipe (int filedes [2])
		473	{
		474	struct sockaddr_in addr = { 0 };
		475	int addr_size = sizeof (addr);
		476	struct sockaddr_in adr2;
		477	int adr2_size;
		478	SOCKET listener;
		479	SOCKET sock [2] = { -1, -1 };
		480
		481	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		482	return -1;
		483
		484	addr.sin_family = AF_INET;
		485	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
		486	addr.sin_port = 0;
		487
		488	if (bind (listener, (struct sockaddr *)&addr, addr_size))
		489	goto fail;
		490
		491	if (getsockname (listener, (struct sockaddr *)&addr, &addr_size))
		492	goto fail;
		493
		494	if (listen (listener, 1))
		495	goto fail;
		496
		497	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		498	goto fail;
		499
		500	if (connect (sock [0], (struct sockaddr *)&addr, addr_size))
		501	goto fail;
		502
		503	if ((sock [1] = accept (listener, 0, 0)) < 0)
		504	goto fail;
		505
		506	/* windows vista returns fantasy port numbers for getpeername.
		507	* example for two interconnected tcp sockets:
		508	*
		509	* (Socket::unpack_sockaddr_in getsockname $sock0)[0] == 53364
		510	* (Socket::unpack_sockaddr_in getpeername $sock0)[0] == 53363
		511	* (Socket::unpack_sockaddr_in getsockname $sock1)[0] == 53363
		512	* (Socket::unpack_sockaddr_in getpeername $sock1)[0] == 53365
		513	*
		514	* wow! tridirectional sockets!
		515	*
		516	* this way of checking ports seems to work:
		517	*/
		518	if (getpeername (sock [0], (struct sockaddr *)&addr, &addr_size))
		519	goto fail;
		520
		521	if (getsockname (sock [1], (struct sockaddr *)&adr2, &adr2_size))
		522	goto fail;
		523
		524	errno = WSAEINVAL;
		525	if (addr_size != adr2_size
		526	|| addr.sin_addr.s_addr != adr2.sin_addr.s_addr /* just to be sure, I mean, it's windows */
		527	|| addr.sin_port != adr2.sin_port)
		528	goto fail;
		529
		530	closesocket (listener);
		531
		532	#if EV_SELECT_IS_WINSOCKET
		533	filedes [0] = _open_osfhandle (sock [0], 0);
		534	filedes [1] = _open_osfhandle (sock [1], 0);
		535	#else
		536	/* when select isn't winsocket, we also expect socket, connect, accept etc.
		537	* to work on fds */
		538	filedes [0] = sock [0];
		539	filedes [1] = sock [1];
		540	#endif
		541
		542	return 0;
		543
		544	fail:
		545	closesocket (listener);
		546
		547	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
		548	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
		549
		550	return -1;
		551	}
		552	#endif
		553
		554	static void
		555	create_respipe (void)
		556	{
		557	#ifdef _WIN32
		558	int arg; /* argg */
		559	#endif
		560	int old_readfd = respipe [0];
		561
		562	if (respipe [1] >= 0)
		563	respipe_close (TO_SOCKET (respipe [1]));
		564
		565	#ifdef _WIN32
		566	if (ev_pipe (respipe))
		567	#else
		568	if (pipe (respipe))
		569	#endif
		570	croak ("unable to initialize result pipe");
		571
		572	if (old_readfd >= 0)
		573	{
		574	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		575	croak ("unable to initialize result pipe(2)");
		576
		577	respipe_close (respipe [0]);
		578	respipe [0] = old_readfd;
		579	}
		580
		581	#ifdef _WIN32
		582	arg = 1;
		583	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		584	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		585	#else
		586	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		587	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		588	#endif
		589	croak ("unable to initialize result pipe(3)");
		590
		591	respipe_osf [0] = TO_SOCKET (respipe [0]);
		592	respipe_osf [1] = TO_SOCKET (respipe [1]);
		593	}
		594
		595	static void bdb_request (bdb_req req);
		596	X_THREAD_PROC (bdb_proc);
271		597
272	static void start_thread (void)	598	static void start_thread (void)
273	{	599	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	600	worker *wrk = calloc (1, sizeof (worker));
278		601
279	if (!wrk)	602	if (!wrk)
280	croak ("unable to allocate worker thread data");	603	croak ("unable to allocate worker thread data");
281		604
282	pthread_attr_init (&attr);
283	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
284	#ifdef PTHREAD_SCOPE_PROCESS
285	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
286	#endif
287
288	sigfillset (&fullsigset);
289
290	LOCK (wrklock);	605	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	606	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	607	{
295	wrk->prev = &wrk_first;	608	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	609	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	610	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	611	wrk_first.next = wrk;
299	++started;	612	++started;
300	}	613	}
301	else	614	else
302	free (wrk);	615	free (wrk);
303		616
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	617	X_UNLOCK (wrklock);
306	}	618	}
307		619
308	static void maybe_start_thread ()	620	static void maybe_start_thread (void)
309	{	621	{
310	if (get_nthreads () >= wanted)	622	if (get_nthreads () >= wanted)
311	return;	623	return;
312		624
313	/* todo: maybe use idle here, but might be less exact */	625	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	627	return;
316		628
317	start_thread ();	629	start_thread ();
318	}	630	}
319		631
320	static void req_send (aio_req req)	632	static void req_send (bdb_req req)
321	{	633	{
		634	SV *wait_callback = 0;
		635
		636	if (on_next_submit)
		637	{
		638	dSP;
		639	SV *cb = sv_2mortal (on_next_submit);
		640
		641	on_next_submit = 0;
		642
		643	PUSHMARK (SP);
		644	PUTBACK;
		645	call_sv (cb, G_DISCARD | G_EVAL);
		646	SPAGAIN;
		647	}
		648
		649	// synthesize callback if none given
		650	if (!req->callback)
		651	{
		652	if (SvOK (prepare_cb))
		653	{
		654	int count;
		655
		656	dSP;
		657	PUSHMARK (SP);
		658	PUTBACK;
		659	count = call_sv (prepare_cb, G_ARRAY);
		660	SPAGAIN;
		661
		662	if (count != 2)
		663	croak ("sync prepare callback must return exactly two values\n");
		664
		665	wait_callback = POPs;
		666	req->callback = SvREFCNT_inc (POPs);
		667	}
		668	else
		669	{
		670	// execute request synchronously
		671	bdb_request (req);
		672	req_invoke (req);
		673	req_free (req);
		674	return;
		675	}
		676	}
		677
322	++nreqs;	678	++nreqs;
323		679
324	LOCK (reqlock);	680	X_LOCK (reqlock);
325	++nready;	681	++nready;
326	reqq_push (&req_queue, req);	682	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	683	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	684	X_UNLOCK (reqlock);
329		685
330	maybe_start_thread ();	686	maybe_start_thread ();
		687
		688	if (wait_callback)
		689	{
		690	dSP;
		691	PUSHMARK (SP);
		692	PUTBACK;
		693	call_sv (wait_callback, G_DISCARD);
		694	}
331	}	695	}
332		696
333	static void end_thread (void)	697	static void end_thread (void)
334	{	698	{
335	aio_req req;	699	bdb_req req = calloc (1, sizeof (bdb_cb));
336
337	Newz (0, req, 1, aio_cb);
338		700
339	req->type = REQ_QUIT;	701	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	702	req->pri = PRI_MAX + PRI_BIAS;
341		703
342	LOCK (reqlock);	704	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	705	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	706	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	707	X_UNLOCK (reqlock);
346		708
347	LOCK (wrklock);	709	X_LOCK (wrklock);
348	--started;	710	--started;
349	UNLOCK (wrklock);	711	X_UNLOCK (wrklock);
350	}	712	}
351		713
352	static void set_max_idle (int nthreads)	714	static void set_max_idle (int nthreads)
353	{	715	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	716	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	717	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	718	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	719	}
358		720
359	static void min_parallel (int nthreads)	721	static void min_parallel (int nthreads)
360	{	722	{
361	if (wanted < nthreads)	723	if (wanted < nthreads)
…		…
369		731
370	while (started > wanted)	732	while (started > wanted)
371	end_thread ();	733	end_thread ();
372	}	734	}
373		735
374	static void poll_wait ()	736	static void poll_wait (void)
375	{	737	{
376	fd_set rfd;	738	fd_set rfd;
377		739
378	while (nreqs)	740	while (nreqs)
379	{	741	{
380	int size;	742	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	743	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	744	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	745	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		746
385	if (size)	747	if (size)
386	return;	748	return;
387		749
388	maybe_start_thread ();	750	maybe_start_thread ();
389		751
390	FD_ZERO(&rfd);	752	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	753	FD_SET (respipe [0], &rfd);
392		754
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	755	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	756	}
395	}	757	}
396		758
397	static int poll_cb ()	759	static int poll_cb (void)
398	{	760	{
399	dSP;	761	dSP;
400	int count = 0;	762	int count = 0;
401	int maxreqs = max_poll_reqs;	763	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	764	int do_croak = 0;
403	struct timeval tv_start, tv_now;	765	struct timeval tv_start, tv_now;
404	aio_req req;	766	bdb_req req;
405		767
406	if (max_poll_time)	768	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	769	gettimeofday (&tv_start, 0);
408		770
409	for (;;)	771	for (;;)
410	{	772	{
411	for (;;)	773	for (;;)
412	{	774	{
413	maybe_start_thread ();	775	maybe_start_thread ();
414		776
415	LOCK (reslock);	777	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	778	req = reqq_shift (&res_queue);
417		779
418	if (req)	780	if (req)
419	{	781	{
420	--npending;	782	--npending;
421		783
422	if (!res_queue.size)	784	if (!res_queue.size)
423	{	785	{
424	/* read any signals sent by the worker threads */	786	/* read any signals sent by the worker threads */
425	char buf [4];	787	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	788	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	789	;
428	}	790	}
429	}	791	}
430		792
431	UNLOCK (reslock);	793	X_UNLOCK (reslock);
432		794
433	if (!req)	795	if (!req)
434	break;	796	break;
435		797
436	--nreqs;	798	--nreqs;
…		…
466	}	828	}
467		829
468	return count;	830	return count;
469	}	831	}
470		832
471	static void create_pipe ()
472	{
473	if (pipe (respipe))
474	croak ("unable to initialize result pipe");
475
476	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
477	croak ("cannot set result pipe to nonblocking mode");
478
479	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	croak ("cannot set result pipe to nonblocking mode");
481	}
482
483	/*****************************************************************************/	833	/*****************************************************************************/
484		834
485	static void *aio_proc (void *thr_arg)	835	static void
		836	bdb_request (bdb_req req)
486	{	837	{
		838	switch (req->type)
		839	{
		840	case REQ_ENV_OPEN:
		841	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		842	break;
		843
		844	case REQ_ENV_CLOSE:
		845	req->result = req->env->close (req->env, req->uint1);
		846	break;
		847
		848	case REQ_ENV_TXN_CHECKPOINT:
		849	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		850	break;
		851
		852	case REQ_ENV_LOCK_DETECT:
		853	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		854	break;
		855
		856	case REQ_ENV_MEMP_SYNC:
		857	req->result = req->env->memp_sync (req->env, 0);
		858	break;
		859
		860	case REQ_ENV_MEMP_TRICKLE:
		861	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		862	break;
		863
		864	case REQ_ENV_DBREMOVE:
		865	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		866	break;
		867
		868	case REQ_ENV_DBRENAME:
		869	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		870	break;
		871
		872	case REQ_DB_OPEN:
		873	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		874	break;
		875
		876	case REQ_DB_CLOSE:
		877	req->result = req->db->close (req->db, req->uint1);
		878	break;
		879
		880	#if DB_VERSION_MINOR >= 4
		881	case REQ_DB_COMPACT:
		882	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);
		883	break;
		884	#endif
		885
		886	case REQ_DB_SYNC:
		887	req->result = req->db->sync (req->db, req->uint1);
		888	break;
		889
		890	case REQ_DB_UPGRADE:
		891	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		892	break;
		893
		894	case REQ_DB_PUT:
		895	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		896	break;
		897
		898	#if DB_VERSION_MINOR >= 6
		899	case REQ_DB_EXISTS:
		900	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		901	break;
		902	#endif
		903	case REQ_DB_GET:
		904	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		905	break;
		906
		907	case REQ_DB_PGET:
		908	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		909	break;
		910
		911	case REQ_DB_DEL:
		912	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		913	break;
		914
		915	case REQ_DB_KEY_RANGE:
		916	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		917	break;
		918
		919	case REQ_TXN_COMMIT:
		920	req->result = req->txn->commit (req->txn, req->uint1);
		921	break;
		922
		923	case REQ_TXN_ABORT:
		924	req->result = req->txn->abort (req->txn);
		925	break;
		926
		927	case REQ_TXN_FINISH:
		928	if (req->txn->flags & TXN_DEADLOCK)
		929	{
		930	req->result = req->txn->abort (req->txn);
		931	if (!req->result)
		932	req->result = DB_LOCK_DEADLOCK;
		933	}
		934	else
		935	req->result = req->txn->commit (req->txn, req->uint1);
		936	break;
		937
		938	case REQ_C_CLOSE:
		939	req->result = req->dbc->c_close (req->dbc);
		940	break;
		941
		942	case REQ_C_COUNT:
		943	{
		944	db_recno_t recno;
		945	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		946	req->uv1 = recno;
		947	}
		948	break;
		949
		950	case REQ_C_PUT:
		951	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		952	break;
		953
		954	case REQ_C_GET:
		955	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		956	break;
		957
		958	case REQ_C_PGET:
		959	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		960	break;
		961
		962	case REQ_C_DEL:
		963	req->result = req->dbc->c_del (req->dbc, req->uint1);
		964	break;
		965
		966	#if DB_VERSION_MINOR >= 3
		967	case REQ_SEQ_OPEN:
		968	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		969	break;
		970
		971	case REQ_SEQ_CLOSE:
		972	req->result = req->seq->close (req->seq, req->uint1);
		973	break;
		974
		975	case REQ_SEQ_GET:
		976	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		977	break;
		978
		979	case REQ_SEQ_REMOVE:
		980	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		981	break;
		982	#endif
		983
		984	case REQ_ENV_LOG_ARCHIVE:
		985	{
		986	char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
		987	req->result = req->env->log_archive (req->env, &listp, req->uint1);
		988	req->buf1 = (char *)listp;
		989	}
		990	break;
		991
		992	default:
		993	req->result = ENOSYS;
		994	break;
		995	}
		996
		997	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		998	req->txn->flags |= TXN_DEADLOCK;
		999	}
		1000
		1001	X_THREAD_PROC (bdb_proc)
		1002	{
487	aio_req req;	1003	bdb_req req;
488	struct timespec ts;	1004	struct timespec ts;
489	worker *self = (worker *)thr_arg;	1005	worker *self = (worker *)thr_arg;
490		1006
491	/* try to distribute timeouts somewhat evenly */	1007	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1008	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		1009
495	for (;;)	1010	for (;;)
496	{	1011	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1012	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		1013
499	LOCK (reqlock);	1014	X_LOCK (reqlock);
500		1015
501	for (;;)	1016	for (;;)
502	{	1017	{
503	self->req = req = reqq_shift (&req_queue);	1018	self->req = req = reqq_shift (&req_queue);
504		1019
505	if (req)	1020	if (req)
506	break;	1021	break;
507		1022
508	++idle;	1023	++idle;
509		1024
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1025	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	1026	== ETIMEDOUT)
512	{	1027	{
513	if (idle > max_idle)	1028	if (idle > max_idle)
514	{	1029	{
515	--idle;	1030	--idle;
516	UNLOCK (reqlock);	1031	X_UNLOCK (reqlock);
517	LOCK (wrklock);	1032	X_LOCK (wrklock);
518	--started;	1033	--started;
519	UNLOCK (wrklock);	1034	X_UNLOCK (wrklock);
520	goto quit;	1035	goto quit;
521	}	1036	}
522		1037
523	/* we are allowed to idle, so do so without any timeout */	1038	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	1039	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1040	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	1041	}
527		1042
528	--idle;	1043	--idle;
529	}	1044	}
530		1045
531	--nready;	1046	--nready;
532		1047
533	UNLOCK (reqlock);	1048	X_UNLOCK (reqlock);
534
535	errno = 0; /* strictly unnecessary */
536		1049
537	switch (req->type)	1050	if (req->type == REQ_QUIT)
538	{	1051	{
539	case REQ_QUIT:	1052	X_LOCK (reslock);
		1053	free (req);
		1054	self->req = 0;
		1055	X_UNLOCK (reslock);
		1056
540	goto quit;	1057	goto quit;
541
542	default:
543	//req->result = ENOSYS;
544	break;
545	}	1058	}
546		1059
547	//req->errorno = errno;	1060	bdb_request (req);
548		1061
549	LOCK (reslock);	1062	X_LOCK (reslock);
550		1063
551	++npending;	1064	++npending;
552		1065
553	if (!reqq_push (&res_queue, req))	1066	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	1067	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	1068	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		1069
557	self->req = 0;	1070	self->req = 0;
558	worker_clear (self);	1071	worker_clear (self);
559		1072
560	UNLOCK (reslock);	1073	X_UNLOCK (reslock);
561	}	1074	}
562		1075
563	quit:	1076	quit:
564	LOCK (wrklock);	1077	X_LOCK (wrklock);
565	worker_free (self);	1078	worker_free (self);
566	UNLOCK (wrklock);	1079	X_UNLOCK (wrklock);
567		1080
568	return 0;	1081	return 0;
569	}	1082	}
570		1083
571	/*****************************************************************************/	1084	/*****************************************************************************/
572		1085
573	static void atfork_prepare (void)	1086	static void atfork_prepare (void)
574	{	1087	{
575	LOCK (wrklock);	1088	X_LOCK (wrklock);
576	LOCK (reqlock);	1089	X_LOCK (reqlock);
577	LOCK (reslock);	1090	X_LOCK (reslock);
578	}	1091	}
579		1092
580	static void atfork_parent (void)	1093	static void atfork_parent (void)
581	{	1094	{
582	UNLOCK (reslock);	1095	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	1096	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	1097	X_UNLOCK (wrklock);
585	}	1098	}
586		1099
587	static void atfork_child (void)	1100	static void atfork_child (void)
588	{	1101	{
589	aio_req prv;	1102	bdb_req prv;
590		1103
591	while (prv = reqq_shift (&req_queue))	1104	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	1105	req_free (prv);
593		1106
594	while (prv = reqq_shift (&res_queue))	1107	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	1122	idle = 0;
610	nreqs = 0;	1123	nreqs = 0;
611	nready = 0;	1124	nready = 0;
612	npending = 0;	1125	npending = 0;
613		1126
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	1127	create_respipe ();
617		1128
618	atfork_parent ();	1129	atfork_parent ();
619	}	1130	}
620		1131
621	#define dREQ \	1132	#define dREQ(reqtype,rsvcnt) \
622	aio_req req; \	1133	bdb_req req; \
623	int req_pri = next_pri; \	1134	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	1135	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	1136	\
626	if (SvOK (callback) && !SvROK (callback)) \	1137	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	1138	croak ("callback has illegal type or extra arguments"); \
628	\	1139	\
629	Newz (0, req, 1, aio_cb); \	1140	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	1141	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	1142	croak ("out of memory during bdb_req allocation"); \
632	\	1143	\
633	req->callback = newSVsv (callback); \	1144	req->callback = SvREFCNT_inc (cb); \
		1145	req->type = (reqtype); \
634	req->pri = req_pri	1146	req->pri = req_pri; \
		1147	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1148	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1149	(void)0;
635		1150
636	#define REQ_SEND \	1151	#define REQ_SEND \
637	req_send (req); \	1152	req_send (req)
		1153
		1154	#define SvPTR(var, arg, type, class, nullok) \
		1155	if (!SvOK (arg)) \
		1156	{ \
		1157	if (nullok != 1) \
		1158	croak (# var " must be a " # class " object, not undef"); \
638	\	1159	\
639	if (GIMME_V != G_VOID) \	1160	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1161	} \
641		1162	else if (sv_derived_from ((arg), # class)) \
		1163	{ \
		1164	IV tmp = SvIV ((SV*) SvRV (arg)); \
		1165	(var) = INT2PTR (type, tmp); \
		1166	if (!var && nullok != 2) \
		1167	croak (# var " is not a valid " # class " object anymore"); \
		1168	} \
		1169	else \
		1170	croak (# var " is not of type " # class);
		1171
		1172	#define ARG_MUTABLE(name) \
		1173	if (SvREADONLY (name)) \
		1174	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1175
		1176	static void
		1177	ptr_nuke (SV *sv)
		1178	{
		1179	assert (SvROK (sv));
		1180	sv_setiv (SvRV (sv), 0);
		1181	}
		1182
		1183	static int
		1184	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1185	{
		1186	if (*mg->mg_ptr == '!') // should always be the case
		1187	if (-30999 <= errno && errno <= -30800)
		1188	{
		1189	sv_setnv (sv, (NV)errno);
		1190	sv_setpv (sv, db_strerror (errno));
		1191	SvNOK_on (sv); /* what a wonderful hack! */
		1192	// ^^^ copied from perl sources
		1193	return 0;
		1194	}
		1195
		1196	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1197	}
		1198
		1199	static MGVTBL vtbl_errno;
		1200
		1201	// this wonderful hack :( patches perl's $! variable to support our errno values
		1202	static void
		1203	patch_errno (void)
		1204	{
		1205	SV *sv;
		1206	MAGIC *mg;
		1207
		1208	if (!(sv = get_sv ("!", 1)))
		1209	return;
		1210
		1211	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1212	return;
		1213
		1214	if (mg->mg_virtual != &PL_vtbl_sv)
		1215	return;
		1216
		1217	vtbl_errno = PL_vtbl_sv;
		1218	vtbl_errno.svt_get = errno_get;
		1219	mg->mg_virtual = &vtbl_errno;
		1220	}
		1221
		1222	#if __GNUC__ >= 4
		1223	# define noinline __attribute__ ((noinline))
		1224	#else
		1225	# define noinline
		1226	#endif
		1227
		1228	static noinline SV *
		1229	pop_callback (I32 *ritems, SV *sv)
		1230	{
		1231	if (SvROK (sv))
		1232	{
		1233	HV *st;
		1234	GV *gvp;
		1235	CV *cv;
		1236	const char *name;
		1237
		1238	/* forgive me */
		1239	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1240	&& (st = SvSTASH (SvRV (sv)))
		1241	&& (name = HvNAME_get (st))
		1242	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1243	return 0;
		1244
		1245	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1246	{
		1247	--*ritems;
		1248	return (SV *)cv;
		1249	}
		1250	}
		1251
		1252	return 0;
		1253	}
		1254
		1255	/*****************************************************************************/
		1256
		1257	#if 0
		1258	static int
		1259	bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
		1260	{
		1261	ssize_t size1 = dbt1->size;
		1262	ssize_t size2 = dbt2->size;
		1263	int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
		1264	size1 <= size2 ? size1 : size2);
		1265
		1266	if (res)
		1267	return res;
		1268	else if (size1 - size2)
		1269	return size1 - size2;
		1270	else
		1271	return 0;
		1272	}
		1273
		1274	static size_t
		1275	bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
		1276	{
		1277	ssize_t size1 = dbt1->size;
		1278	ssize_t size2 = dbt2->size;
		1279	u_int8_t *p1 = (u_int8_t *)dbt1->data;
		1280	u_int8_t *p2 = (u_int8_t *)dbt2->data;
		1281	u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
		1282
		1283	while (p1 < pe)
		1284	if (*p1++ != *p2++)
		1285	return p1 - (u_int8_t *)dbt1->data - 1;
		1286
		1287	if (size1 < size2) return size1 + 1;
		1288	if (size1 > size2) return size2 + 1;
		1289
		1290	return size1;
		1291	}
		1292	#endif
		1293
		1294	/*****************************************************************************/
		1295
		1296	/* stupid windows defines CALLBACK as well */
		1297	#undef CALLBACK
		1298	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1299
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1300	MODULE = BDB PACKAGE = BDB
643		1301
644	PROTOTYPES: ENABLE	1302	PROTOTYPES: ENABLE
645		1303
646	BOOT:	1304	BOOT:
647	{	1305	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1306	HV *stash = gv_stashpv ("BDB", 1);
649		1307
650	create_pipe ();	1308	static const struct {
		1309	const char *name;
		1310	IV iv;
		1311	} *civ, const_iv[] = {
		1312	#define const_iv(name) { # name, (IV)DB_ ## name },
		1313	const_iv (RPCCLIENT)
		1314	const_iv (INIT_CDB)
		1315	const_iv (INIT_LOCK)
		1316	const_iv (INIT_LOG)
		1317	const_iv (INIT_MPOOL)
		1318	const_iv (INIT_REP)
		1319	const_iv (INIT_TXN)
		1320	const_iv (RECOVER)
		1321	const_iv (INIT_TXN)
		1322	const_iv (RECOVER_FATAL)
		1323	const_iv (CREATE)
		1324	const_iv (RDONLY)
		1325	const_iv (USE_ENVIRON)
		1326	const_iv (USE_ENVIRON_ROOT)
		1327	const_iv (LOCKDOWN)
		1328	const_iv (PRIVATE)
		1329	const_iv (SYSTEM_MEM)
		1330	const_iv (AUTO_COMMIT)
		1331	const_iv (CDB_ALLDB)
		1332	const_iv (DIRECT_DB)
		1333	const_iv (NOLOCKING)
		1334	const_iv (NOMMAP)
		1335	const_iv (NOPANIC)
		1336	const_iv (OVERWRITE)
		1337	const_iv (PANIC_ENVIRONMENT)
		1338	const_iv (REGION_INIT)
		1339	const_iv (TIME_NOTGRANTED)
		1340	const_iv (TXN_NOSYNC)
		1341	const_iv (TXN_NOT_DURABLE)
		1342	const_iv (TXN_WRITE_NOSYNC)
		1343	const_iv (WRITECURSOR)
		1344	const_iv (YIELDCPU)
		1345	const_iv (ENCRYPT_AES)
		1346	const_iv (XA_CREATE)
		1347	const_iv (BTREE)
		1348	const_iv (HASH)
		1349	const_iv (QUEUE)
		1350	const_iv (RECNO)
		1351	const_iv (UNKNOWN)
		1352	const_iv (EXCL)
		1353	const_iv (TRUNCATE)
		1354	const_iv (NOSYNC)
		1355	const_iv (CHKSUM)
		1356	const_iv (ENCRYPT)
		1357	const_iv (DUP)
		1358	const_iv (DUPSORT)
		1359	//const_iv (RECNUM)
		1360	const_iv (RENUMBER)
		1361	const_iv (REVSPLITOFF)
		1362	const_iv (CONSUME)
		1363	const_iv (CONSUME_WAIT)
		1364	const_iv (GET_BOTH)
		1365	const_iv (GET_BOTH_RANGE)
		1366	//const_iv (SET_RECNO)
		1367	//const_iv (MULTIPLE)
		1368	const_iv (SNAPSHOT)
		1369	const_iv (JOIN_ITEM)
		1370	const_iv (JOIN_NOSORT)
		1371	const_iv (RMW)
		1372
		1373	const_iv (NOTFOUND)
		1374	const_iv (KEYEMPTY)
		1375	const_iv (LOCK_DEADLOCK)
		1376	const_iv (LOCK_NOTGRANTED)
		1377	const_iv (RUNRECOVERY)
		1378	const_iv (OLD_VERSION)
		1379	const_iv (REP_HANDLE_DEAD)
		1380	const_iv (SECONDARY_BAD)
		1381
		1382	const_iv (APPEND)
		1383	const_iv (NODUPDATA)
		1384	const_iv (NOOVERWRITE)
		1385
		1386	const_iv (TXN_NOWAIT)
		1387	const_iv (TXN_SYNC)
		1388
		1389	const_iv (SET_LOCK_TIMEOUT)
		1390	const_iv (SET_TXN_TIMEOUT)
		1391
		1392	const_iv (FIRST)
		1393	const_iv (NEXT)
		1394	const_iv (NEXT_DUP)
		1395	const_iv (NEXT_NODUP)
		1396	const_iv (PREV)
		1397	const_iv (PREV_NODUP)
		1398	const_iv (SET)
		1399	const_iv (SET_RANGE)
		1400	const_iv (LAST)
		1401	const_iv (BEFORE)
		1402	const_iv (AFTER)
		1403	const_iv (CURRENT)
		1404	const_iv (KEYFIRST)
		1405	const_iv (KEYLAST)
		1406	const_iv (NODUPDATA)
		1407
		1408	const_iv (FORCE)
		1409
		1410	const_iv (LOCK_DEFAULT)
		1411	const_iv (LOCK_EXPIRE)
		1412	const_iv (LOCK_MAXLOCKS)
		1413	const_iv (LOCK_MINLOCKS)
		1414	const_iv (LOCK_MINWRITE)
		1415	const_iv (LOCK_OLDEST)
		1416	const_iv (LOCK_RANDOM)
		1417	const_iv (LOCK_YOUNGEST)
		1418
		1419	const_iv (DONOTINDEX)
		1420	const_iv (KEYEMPTY )
		1421	const_iv (KEYEXIST )
		1422	const_iv (LOCK_DEADLOCK)
		1423	const_iv (LOCK_NOTGRANTED)
		1424	const_iv (NOSERVER)
		1425	const_iv (NOSERVER_HOME)
		1426	const_iv (NOSERVER_ID)
		1427	const_iv (NOTFOUND)
		1428	const_iv (PAGE_NOTFOUND)
		1429	const_iv (REP_DUPMASTER)
		1430	const_iv (REP_HANDLE_DEAD)
		1431	const_iv (REP_HOLDELECTION)
		1432	const_iv (REP_ISPERM)
		1433	const_iv (REP_NEWMASTER)
		1434	const_iv (REP_NEWSITE)
		1435	const_iv (REP_NOTPERM)
		1436	const_iv (REP_UNAVAIL)
		1437	const_iv (RUNRECOVERY)
		1438	const_iv (SECONDARY_BAD)
		1439	const_iv (VERIFY_BAD)
		1440
		1441	const_iv (ARCH_ABS)
		1442	const_iv (ARCH_DATA)
		1443	const_iv (ARCH_LOG)
		1444	const_iv (ARCH_REMOVE)
		1445
		1446	const_iv (VERB_DEADLOCK)
		1447	const_iv (VERB_RECOVERY)
		1448	const_iv (VERB_REPLICATION)
		1449	const_iv (VERB_WAITSFOR)
		1450
		1451	const_iv (VERSION_MAJOR)
		1452	const_iv (VERSION_MINOR)
		1453	const_iv (VERSION_PATCH)
		1454	#if DB_VERSION_MINOR >= 3
		1455	const_iv (INORDER)
		1456	const_iv (LOCK_MAXWRITE)
		1457	const_iv (SEQ_DEC)
		1458	const_iv (SEQ_INC)
		1459	const_iv (SEQ_WRAP)
		1460	const_iv (BUFFER_SMALL)
		1461	const_iv (LOG_BUFFER_FULL)
		1462	const_iv (VERSION_MISMATCH)
		1463	#endif
		1464	#if DB_VERSION_MINOR >= 4
		1465	const_iv (REGISTER)
		1466	const_iv (DSYNC_DB)
		1467	const_iv (READ_COMMITTED)
		1468	const_iv (READ_UNCOMMITTED)
		1469	const_iv (REP_IGNORE)
		1470	const_iv (REP_LOCKOUT)
		1471	const_iv (REP_JOIN_FAILURE)
		1472	const_iv (FREE_SPACE)
		1473	const_iv (FREELIST_ONLY)
		1474	const_iv (VERB_REGISTER)
		1475	#endif
		1476	#if DB_VERSION_MINOR >= 5
		1477	const_iv (MULTIVERSION)
		1478	const_iv (TXN_SNAPSHOT)
		1479	#endif
		1480	#if DB_VERSION_MINOR >= 6
		1481	const_iv (PREV_DUP)
		1482	const_iv (PRIORITY_UNCHANGED)
		1483	const_iv (PRIORITY_VERY_LOW)
		1484	const_iv (PRIORITY_LOW)
		1485	const_iv (PRIORITY_DEFAULT)
		1486	const_iv (PRIORITY_HIGH)
		1487	const_iv (PRIORITY_VERY_HIGH)
		1488	const_iv (IGNORE_LEASE)
		1489	#endif
		1490	#if DB_VERSION_MINOR >= 7
		1491	//const_iv (MULTIPLE_KEY)
		1492	const_iv (LOG_DIRECT)
		1493	const_iv (LOG_DSYNC)
		1494	const_iv (LOG_AUTO_REMOVE)
		1495	const_iv (LOG_IN_MEMORY)
		1496	const_iv (LOG_ZERO)
		1497	#else
		1498	const_iv (DIRECT_LOG)
		1499	const_iv (LOG_AUTOREMOVE)
		1500	# if DB_VERSION_MINOR >= 3
		1501	const_iv (DSYNC_LOG)
		1502	const_iv (LOG_INMEMORY)
		1503	# endif
		1504	#endif
		1505	};
		1506
		1507	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1508	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1509
		1510	prepare_cb = &PL_sv_undef;
		1511
		1512	{
		1513	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1514	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1515
		1516	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1517	}
		1518
		1519	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1520
		1521	create_respipe ();
		1522
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1523	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1524	patch_errno ();
652	}	1525	}
653		1526
654	void	1527	void
655	max_poll_reqs (int nreqs)	1528	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1529	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1558	max_outstanding = maxreqs;
686	OUTPUT:	1559	OUTPUT:
687	RETVAL	1560	RETVAL
688		1561
689	int	1562	int
690	bdbreq_pri (int pri = 0)	1563	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1564	PROTOTYPE: ;$
692	CODE:	1565	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1566	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1567	if (items > 0)
695	{	1568	{
…		…
699	}	1572	}
700	OUTPUT:	1573	OUTPUT:
701	RETVAL	1574	RETVAL
702		1575
703	void	1576	void
704	bdbreq_nice (int nice = 0)	1577	dbreq_nice (int nice = 0)
705	CODE:	1578	CODE:
706	nice = next_pri - nice;	1579	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1580	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1581	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1582	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1590	poll_wait ();
718	poll_cb ();	1591	poll_cb ();
719	}	1592	}
720		1593
721	int	1594	int
722	poll()	1595	poll ()
723	PROTOTYPE:	1596	PROTOTYPE:
724	CODE:	1597	CODE:
725	poll_wait ();	1598	poll_wait ();
726	RETVAL = poll_cb ();	1599	RETVAL = poll_cb ();
727	OUTPUT:	1600	OUTPUT:
728	RETVAL	1601	RETVAL
729		1602
730	int	1603	int
731	poll_fileno()	1604	poll_fileno ()
732	PROTOTYPE:	1605	PROTOTYPE:
733	CODE:	1606	CODE:
734	RETVAL = respipe [0];	1607	RETVAL = respipe [0];
735	OUTPUT:	1608	OUTPUT:
736	RETVAL	1609	RETVAL
737		1610
738	int	1611	int
739	poll_cb(...)	1612	poll_cb (...)
740	PROTOTYPE:	1613	PROTOTYPE:
741	CODE:	1614	CODE:
742	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
743	OUTPUT:	1616	OUTPUT:
744	RETVAL	1617	RETVAL
745		1618
746	void	1619	void
747	poll_wait()	1620	poll_wait ()
748	PROTOTYPE:	1621	PROTOTYPE:
749	CODE:	1622	CODE:
750	poll_wait ();	1623	poll_wait ();
751		1624
752	int	1625	int
753	nreqs()	1626	nreqs ()
754	PROTOTYPE:	1627	PROTOTYPE:
755	CODE:	1628	CODE:
756	RETVAL = nreqs;	1629	RETVAL = nreqs;
757	OUTPUT:	1630	OUTPUT:
758	RETVAL	1631	RETVAL
759		1632
760	int	1633	int
761	nready()	1634	nready ()
762	PROTOTYPE:	1635	PROTOTYPE:
763	CODE:	1636	CODE:
764	RETVAL = get_nready ();	1637	RETVAL = get_nready ();
765	OUTPUT:	1638	OUTPUT:
766	RETVAL	1639	RETVAL
767		1640
768	int	1641	int
769	npending()	1642	npending ()
770	PROTOTYPE:	1643	PROTOTYPE:
771	CODE:	1644	CODE:
772	RETVAL = get_npending ();	1645	RETVAL = get_npending ();
773	OUTPUT:	1646	OUTPUT:
774	RETVAL	1647	RETVAL
775		1648
776	int	1649	int
777	nthreads()	1650	nthreads ()
778	PROTOTYPE:	1651	PROTOTYPE:
779	CODE:	1652	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1653	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1654	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1655	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1656	OUTPUT:
784	RETVAL	1657	RETVAL
785		1658
		1659	SV *
		1660	set_sync_prepare (SV *cb)
		1661	PROTOTYPE: &
		1662	CODE:
		1663	RETVAL = prepare_cb;
		1664	prepare_cb = newSVsv (cb);
		1665	OUTPUT:
		1666	RETVAL
786		1667
		1668	char *
		1669	strerror (int errorno = errno)
		1670	PROTOTYPE: ;$
		1671	CODE:
		1672	RETVAL = db_strerror (errorno);
		1673	OUTPUT:
		1674	RETVAL
		1675
		1676	void _on_next_submit (SV *cb)
		1677	CODE:
		1678	SvREFCNT_dec (on_next_submit);
		1679	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1680
		1681	DB_ENV *
		1682	db_env_create (U32 env_flags = 0)
		1683	CODE:
		1684	{
		1685	errno = db_env_create (&RETVAL, env_flags);
		1686	if (errno)
		1687	croak ("db_env_create: %s", db_strerror (errno));
		1688
		1689	if (0)
		1690	{
		1691	RETVAL->set_errcall (RETVAL, debug_errcall);
		1692	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1693	}
		1694	}
		1695	OUTPUT:
		1696	RETVAL
		1697
		1698	void
		1699	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1700	PREINIT:
		1701	CALLBACK
		1702	CODE:
		1703	{
		1704	dREQ (REQ_ENV_OPEN, 1);
		1705	req->env = env;
		1706	req->uint1 = open_flags | DB_THREAD;
		1707	req->int1 = mode;
		1708	req->buf1 = strdup_ornull (db_home);
		1709	REQ_SEND;
		1710	}
		1711
		1712	void
		1713	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1714	PREINIT:
		1715	CALLBACK
		1716	CODE:
		1717	{
		1718	dREQ (REQ_ENV_CLOSE, 0);
		1719	ptr_nuke (ST (0));
		1720	req->env = env;
		1721	req->uint1 = flags;
		1722	REQ_SEND;
		1723	}
		1724
		1725	void
		1726	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1727	PREINIT:
		1728	CALLBACK
		1729	CODE:
		1730	{
		1731	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1732	req->env = env;
		1733	req->uint1 = kbyte;
		1734	req->int1 = min;
		1735	req->uint2 = flags;
		1736	REQ_SEND;
		1737	}
		1738
		1739	void
		1740	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1741	PREINIT:
		1742	CALLBACK
		1743	CODE:
		1744	{
		1745	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1746	req->env = env;
		1747	req->uint1 = flags;
		1748	req->uint2 = atype;
		1749	/* req->int2 = 0; dummy */
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
		1754	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1755	PREINIT:
		1756	CALLBACK
		1757	CODE:
		1758	{
		1759	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1760	req->env = env;
		1761	REQ_SEND;
		1762	}
		1763
		1764	void
		1765	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1766	PREINIT:
		1767	CALLBACK
		1768	CODE:
		1769	{
		1770	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1771	req->env = env;
		1772	req->int1 = percent;
		1773	REQ_SEND;
		1774	}
		1775
		1776	void
		1777	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1778	PREINIT:
		1779	CALLBACK
		1780	CODE:
		1781	{
		1782	dREQ (REQ_ENV_DBREMOVE, 2);
		1783	req->env = env;
		1784	req->buf1 = strdup_ornull (file);
		1785	req->buf2 = strdup_ornull (database);
		1786	req->uint1 = flags;
		1787	REQ_SEND;
		1788	}
		1789
		1790	void
		1791	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)
		1792	PREINIT:
		1793	CALLBACK
		1794	CODE:
		1795	{
		1796	dREQ (REQ_ENV_DBRENAME, 2);
		1797	req->env = env;
		1798	req->buf1 = strdup_ornull (file);
		1799	req->buf2 = strdup_ornull (database);
		1800	req->buf3 = strdup_ornull (newname);
		1801	req->uint1 = flags;
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
		1806	db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
		1807	PREINIT:
		1808	CALLBACK
		1809	CODE:
		1810	{
		1811	dREQ (REQ_ENV_LOG_ARCHIVE, 1);
		1812	req->sv1 = SvREFCNT_inc (listp);
		1813	req->env = env;
		1814	req->uint1 = flags;
		1815	REQ_SEND;
		1816	}
		1817
		1818	DB *
		1819	db_create (DB_ENV *env = 0, U32 flags = 0)
		1820	CODE:
		1821	{
		1822	errno = db_create (&RETVAL, env, flags);
		1823	if (errno)
		1824	croak ("db_create: %s", db_strerror (errno));
		1825
		1826	if (RETVAL)
		1827	RETVAL->app_private = (void *)newSVsv (ST (0));
		1828	}
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	void
		1833	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1834	PREINIT:
		1835	CALLBACK
		1836	CODE:
		1837	{
		1838	dREQ (REQ_DB_OPEN, 2);
		1839	req->db = db;
		1840	req->txn = txnid;
		1841	req->buf1 = strdup_ornull (file);
		1842	req->buf2 = strdup_ornull (database);
		1843	req->int1 = type;
		1844	req->uint1 = flags | DB_THREAD;
		1845	req->int2 = mode;
		1846	REQ_SEND;
		1847	}
		1848
		1849	void
		1850	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1851	PREINIT:
		1852	CALLBACK
		1853	CODE:
		1854	{
		1855	dREQ (REQ_DB_CLOSE, 0);
		1856	ptr_nuke (ST (0));
		1857	req->db = db;
		1858	req->uint1 = flags;
		1859	req->sv1 = (SV *)db->app_private;
		1860	REQ_SEND;
		1861	}
		1862
		1863	#if DB_VERSION_MINOR >= 4
		1864
		1865	void
		1866	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)
		1867	PREINIT:
		1868	CALLBACK
		1869	CODE:
		1870	{
		1871	dREQ (REQ_DB_COMPACT, 2);
		1872	req->db = db;
		1873	req->txn = txn;
		1874	if (start) sv_to_dbt (&req->dbt1, start);
		1875	if (stop ) sv_to_dbt (&req->dbt2, stop );
		1876	req->uint1 = flags;
		1877	REQ_SEND;
		1878	}
		1879
		1880	#endif
		1881
		1882	void
		1883	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1884	PREINIT:
		1885	CALLBACK
		1886	CODE:
		1887	{
		1888	dREQ (REQ_DB_SYNC, 1);
		1889	req->db = db;
		1890	req->uint1 = flags;
		1891	REQ_SEND;
		1892	}
		1893
		1894	void
		1895	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1896	PREINIT:
		1897	CALLBACK
		1898	CODE:
		1899	{
		1900	dREQ (REQ_DB_SYNC, 1);
		1901	req->db = db;
		1902	req->buf1 = strdup (file);
		1903	req->uint1 = flags;
		1904	REQ_SEND;
		1905	}
		1906
		1907	void
		1908	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1909	PREINIT:
		1910	CALLBACK
		1911	CODE:
		1912	{
		1913	dREQ (REQ_DB_KEY_RANGE, 2);
		1914	req->db = db;
		1915	req->txn = txn;
		1916	sv_to_dbt (&req->dbt1, key);
		1917	req->uint1 = flags;
		1918	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1919	REQ_SEND;
		1920	}
		1921
		1922	void
		1923	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1924	PREINIT:
		1925	CALLBACK
		1926	CODE:
		1927	{
		1928	dREQ (REQ_DB_PUT, 2);
		1929	req->db = db;
		1930	req->txn = txn;
		1931	sv_to_dbt (&req->dbt1, key);
		1932	sv_to_dbt (&req->dbt2, data);
		1933	req->uint1 = flags;
		1934	REQ_SEND;
		1935	}
		1936
		1937	#if DB_VERSION_MINOR >= 6
		1938
		1939	void
		1940	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1941	PREINIT:
		1942	CALLBACK
		1943	CODE:
		1944	{
		1945	dREQ (REQ_DB_EXISTS, 2);
		1946	req->db = db;
		1947	req->txn = txn;
		1948	req->uint1 = flags;
		1949	sv_to_dbt (&req->dbt1, key);
		1950	REQ_SEND;
		1951	}
		1952
		1953	#endif
		1954
		1955	void
		1956	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1957	PREINIT:
		1958	CALLBACK
		1959	CODE:
		1960	{
		1961	//TODO: key is somtimesmutable
		1962	dREQ (REQ_DB_GET, 2);
		1963	req->db = db;
		1964	req->txn = txn;
		1965	req->uint1 = flags;
		1966	sv_to_dbt (&req->dbt1, key);
		1967	req->dbt3.flags = DB_DBT_MALLOC;
		1968	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1969	REQ_SEND;
		1970	}
		1971
		1972	void
		1973	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1974	PREINIT:
		1975	CALLBACK
		1976	CODE:
		1977	{
		1978	//TODO: key is somtimesmutable
		1979	dREQ (REQ_DB_PGET, 2);
		1980	req->db = db;
		1981	req->txn = txn;
		1982	req->uint1 = flags;
		1983
		1984	sv_to_dbt (&req->dbt1, key);
		1985
		1986	req->dbt2.flags = DB_DBT_MALLOC;
		1987	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1988
		1989	req->dbt3.flags = DB_DBT_MALLOC;
		1990	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1991	REQ_SEND;
		1992	}
		1993
		1994	void
		1995	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1996	PREINIT:
		1997	CALLBACK
		1998	CODE:
		1999	{
		2000	dREQ (REQ_DB_DEL, 2);
		2001	req->db = db;
		2002	req->txn = txn;
		2003	req->uint1 = flags;
		2004	sv_to_dbt (&req->dbt1, key);
		2005	REQ_SEND;
		2006	}
		2007
		2008	void
		2009	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		2010	PREINIT:
		2011	CALLBACK
		2012	CODE:
		2013	{
		2014	dREQ (REQ_TXN_COMMIT, 0);
		2015	ptr_nuke (ST (0));
		2016	req->txn = txn;
		2017	req->uint1 = flags;
		2018	REQ_SEND;
		2019	}
		2020
		2021	void
		2022	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		2023	PREINIT:
		2024	CALLBACK
		2025	CODE:
		2026	{
		2027	dREQ (REQ_TXN_ABORT, 0);
		2028	ptr_nuke (ST (0));
		2029	req->txn = txn;
		2030	REQ_SEND;
		2031	}
		2032
		2033	void
		2034	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		2035	PREINIT:
		2036	CALLBACK
		2037	CODE:
		2038	{
		2039	dREQ (REQ_TXN_FINISH, 0);
		2040	ptr_nuke (ST (0));
		2041	req->txn = txn;
		2042	req->uint1 = flags;
		2043	REQ_SEND;
		2044	}
		2045
		2046	void
		2047	db_c_close (DBC *dbc, SV *callback = 0)
		2048	PREINIT:
		2049	CALLBACK
		2050	CODE:
		2051	{
		2052	dREQ (REQ_C_CLOSE, 0);
		2053	ptr_nuke (ST (0));
		2054	req->dbc = dbc;
		2055	REQ_SEND;
		2056	}
		2057
		2058	void
		2059	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		2060	PREINIT:
		2061	CALLBACK
		2062	CODE:
		2063	{
		2064	dREQ (REQ_C_COUNT, 1);
		2065	req->dbc = dbc;
		2066	req->sv1 = SvREFCNT_inc (count);
		2067	REQ_SEND;
		2068	}
		2069
		2070	void
		2071	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		2072	PREINIT:
		2073	CALLBACK
		2074	CODE:
		2075	{
		2076	dREQ (REQ_C_PUT, 1);
		2077	req->dbc = dbc;
		2078	sv_to_dbt (&req->dbt1, key);
		2079	sv_to_dbt (&req->dbt2, data);
		2080	req->uint1 = flags;
		2081	REQ_SEND;
		2082	}
		2083
		2084	void
		2085	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2086	PREINIT:
		2087	CALLBACK
		2088	CODE:
		2089	{
		2090	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2091	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2092	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2093	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2094	"key",
		2095	"BDB::db_c_get");
		2096
		2097	{
		2098	dREQ (REQ_C_GET, 1);
		2099	req->dbc = dbc;
		2100	req->uint1 = flags;
		2101	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2102	sv_to_dbt (&req->dbt1, key);
		2103	else
		2104	{
		2105	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2106	sv_to_dbt (&req->dbt1, key);
		2107	else
		2108	req->dbt1.flags = DB_DBT_MALLOC;
		2109
		2110	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2111	}
		2112
		2113	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2114	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2115	sv_to_dbt (&req->dbt3, data);
		2116	else
		2117	req->dbt3.flags = DB_DBT_MALLOC;
		2118
		2119	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2120	REQ_SEND;
		2121	}
		2122	}
		2123
		2124	void
		2125	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		2126	PREINIT:
		2127	CALLBACK
		2128	CODE:
		2129	{
		2130	if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
		2131	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		2132	if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
		2133	croak ("argument \"%s\" must be byte/octet-encoded in %s",
		2134	"key",
		2135	"BDB::db_c_pget");
		2136
		2137	{
		2138	dREQ (REQ_C_PGET, 1);
		2139	req->dbc = dbc;
		2140	req->uint1 = flags;
		2141	if ((flags & DB_OPFLAGS_MASK) == DB_SET)
		2142	sv_to_dbt (&req->dbt1, key);
		2143	else
		2144	{
		2145	if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
		2146	sv_to_dbt (&req->dbt1, key);
		2147	else
		2148	req->dbt1.flags = DB_DBT_MALLOC;
		2149
		2150	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		2151	}
		2152
		2153	req->dbt2.flags = DB_DBT_MALLOC;
		2154	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		2155
		2156	if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
		2157	|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
		2158	sv_to_dbt (&req->dbt3, data);
		2159	else
		2160	req->dbt3.flags = DB_DBT_MALLOC;
		2161
		2162	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		2163	REQ_SEND;
		2164	}
		2165	}
		2166
		2167	void
		2168	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		2169	PREINIT:
		2170	CALLBACK
		2171	CODE:
		2172	{
		2173	dREQ (REQ_C_DEL, 1);
		2174	req->dbc = dbc;
		2175	req->uint1 = flags;
		2176	REQ_SEND;
		2177	}
		2178
		2179
		2180	#if DB_VERSION_MINOR >= 3
		2181
		2182	void
		2183	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		2184	PREINIT:
		2185	CALLBACK
		2186	CODE:
		2187	{
		2188	dREQ (REQ_SEQ_OPEN, 2);
		2189	req->seq = seq;
		2190	req->txn = txnid;
		2191	req->uint1 = flags | DB_THREAD;
		2192	sv_to_dbt (&req->dbt1, key);
		2193	REQ_SEND;
		2194	}
		2195
		2196	void
		2197	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2198	PREINIT:
		2199	CALLBACK
		2200	CODE:
		2201	{
		2202	dREQ (REQ_SEQ_CLOSE, 0);
		2203	ptr_nuke (ST (0));
		2204	req->seq = seq;
		2205	req->uint1 = flags;
		2206	REQ_SEND;
		2207	}
		2208
		2209	void
		2210	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2211	PREINIT:
		2212	CALLBACK
		2213	CODE:
		2214	{
		2215	dREQ (REQ_SEQ_GET, 2);
		2216	req->seq = seq;
		2217	req->txn = txnid;
		2218	req->int1 = delta;
		2219	req->uint1 = flags;
		2220	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2221	REQ_SEND;
		2222	}
		2223
		2224	void
		2225	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2226	PREINIT:
		2227	CALLBACK
		2228	CODE:
		2229	{
		2230	dREQ (REQ_SEQ_REMOVE, 2);
		2231	req->seq = seq;
		2232	req->txn = txnid;
		2233	req->uint1 = flags;
		2234	REQ_SEND;
		2235	}
		2236
		2237	#endif
		2238
		2239
		2240	MODULE = BDB PACKAGE = BDB::Env
		2241
		2242	void
		2243	DESTROY (DB_ENV_ornuked *env)
		2244	CODE:
		2245	if (env)
		2246	env->close (env, 0);
		2247
		2248	int set_data_dir (DB_ENV *env, const char *dir)
		2249	CODE:
		2250	RETVAL = env->set_data_dir (env, dir);
		2251	OUTPUT:
		2252	RETVAL
		2253
		2254	int set_tmp_dir (DB_ENV *env, const char *dir)
		2255	CODE:
		2256	RETVAL = env->set_tmp_dir (env, dir);
		2257	OUTPUT:
		2258	RETVAL
		2259
		2260	int set_lg_dir (DB_ENV *env, const char *dir)
		2261	CODE:
		2262	RETVAL = env->set_lg_dir (env, dir);
		2263	OUTPUT:
		2264	RETVAL
		2265
		2266	int set_shm_key (DB_ENV *env, long shm_key)
		2267	CODE:
		2268	RETVAL = env->set_shm_key (env, shm_key);
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2273	CODE:
		2274	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2275	OUTPUT:
		2276	RETVAL
		2277
		2278	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2279	CODE:
		2280	RETVAL = env->set_flags (env, flags, onoff);
		2281	OUTPUT:
		2282	RETVAL
		2283
		2284	#if DB_VERSION_MINOR >= 7
		2285
		2286	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2287	CODE:
		2288	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2289	OUTPUT:
		2290	RETVAL
		2291
		2292	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2293	CODE:
		2294	RETVAL = env->log_set_config (env, flags, onoff);
		2295	OUTPUT:
		2296	RETVAL
		2297
		2298	#endif
		2299
		2300
		2301	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2302	CODE:
		2303	env->set_errfile (env, errfile);
		2304
		2305	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2306	CODE:
		2307	env->set_msgfile (env, msgfile);
		2308
		2309	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2310	CODE:
		2311	RETVAL = env->set_verbose (env, which, onoff);
		2312	OUTPUT:
		2313	RETVAL
		2314
		2315	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2316	CODE:
		2317	RETVAL = env->set_encrypt (env, password, flags);
		2318	OUTPUT:
		2319	RETVAL
		2320
		2321	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2322	CODE:
		2323	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2324	OUTPUT:
		2325	RETVAL
		2326
		2327	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2328	CODE:
		2329	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2330	OUTPUT:
		2331	RETVAL
		2332
		2333	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2334	CODE:
		2335	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2336	OUTPUT:
		2337	RETVAL
		2338
		2339	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2340	CODE:
		2341	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2342	OUTPUT:
		2343	RETVAL
		2344
		2345	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2346	CODE:
		2347	RETVAL = env->set_lk_detect (env, detect);
		2348	OUTPUT:
		2349	RETVAL
		2350
		2351	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2352	CODE:
		2353	RETVAL = env->set_lk_max_lockers (env, max);
		2354	OUTPUT:
		2355	RETVAL
		2356
		2357	int set_lk_max_locks (DB_ENV *env, U32 max)
		2358	CODE:
		2359	RETVAL = env->set_lk_max_locks (env, max);
		2360	OUTPUT:
		2361	RETVAL
		2362
		2363	int set_lk_max_objects (DB_ENV *env, U32 max)
		2364	CODE:
		2365	RETVAL = env->set_lk_max_objects (env, max);
		2366	OUTPUT:
		2367	RETVAL
		2368
		2369	int set_lg_bsize (DB_ENV *env, U32 max)
		2370	CODE:
		2371	RETVAL = env->set_lg_bsize (env, max);
		2372	OUTPUT:
		2373	RETVAL
		2374
		2375	int set_lg_max (DB_ENV *env, U32 max)
		2376	CODE:
		2377	RETVAL = env->set_lg_max (env, max);
		2378	OUTPUT:
		2379	RETVAL
		2380
		2381	#if DB_VERSION_MINOR >= 4
		2382
		2383	int mutex_set_max (DB_ENV *env, U32 max)
		2384	CODE:
		2385	RETVAL = env->mutex_set_max (env, max);
		2386	OUTPUT:
		2387	RETVAL
		2388
		2389	int mutex_set_increment (DB_ENV *env, U32 increment)
		2390	CODE:
		2391	RETVAL = env->mutex_set_increment (env, increment);
		2392	OUTPUT:
		2393	RETVAL
		2394
		2395	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2396	CODE:
		2397	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2398	OUTPUT:
		2399	RETVAL
		2400
		2401	int mutex_set_align (DB_ENV *env, U32 align)
		2402	CODE:
		2403	RETVAL = env->mutex_set_align (env, align);
		2404	OUTPUT:
		2405	RETVAL
		2406
		2407	#endif
		2408
		2409	DB_TXN *
		2410	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2411	CODE:
		2412	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2413	if (errno)
		2414	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2415	OUTPUT:
		2416	RETVAL
		2417
		2418	#if DB_VERSION_MINOR >= 5
		2419
		2420	DB_TXN *
		2421	cdsgroup_begin (DB_ENV *env)
		2422	CODE:
		2423	errno = env->cdsgroup_begin (env, &RETVAL);
		2424	if (errno)
		2425	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2426	OUTPUT:
		2427	RETVAL
		2428
		2429	#endif
		2430
		2431	MODULE = BDB PACKAGE = BDB::Db
		2432
		2433	void
		2434	DESTROY (DB_ornuked *db)
		2435	CODE:
		2436	if (db)
		2437	{
		2438	SV *env = (SV *)db->app_private;
		2439	db->close (db, 0);
		2440	SvREFCNT_dec (env);
		2441	}
		2442
		2443	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2444	CODE:
		2445	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2446	OUTPUT:
		2447	RETVAL
		2448
		2449	int set_pagesize (DB *db, U32 pagesize)
		2450	CODE:
		2451	RETVAL = db->set_pagesize (db, pagesize);
		2452	OUTPUT:
		2453	RETVAL
		2454
		2455	int set_flags (DB *db, U32 flags)
		2456	CODE:
		2457	RETVAL = db->set_flags (db, flags);
		2458	OUTPUT:
		2459	RETVAL
		2460
		2461	int set_encrypt (DB *db, const char *password, U32 flags)
		2462	CODE:
		2463	RETVAL = db->set_encrypt (db, password, flags);
		2464	OUTPUT:
		2465	RETVAL
		2466
		2467	int set_lorder (DB *db, int lorder)
		2468	CODE:
		2469	RETVAL = db->set_lorder (db, lorder);
		2470	OUTPUT:
		2471	RETVAL
		2472
		2473	int set_bt_minkey (DB *db, U32 minkey)
		2474	CODE:
		2475	RETVAL = db->set_bt_minkey (db, minkey);
		2476	OUTPUT:
		2477	RETVAL
		2478
		2479	int set_re_delim (DB *db, int delim)
		2480	CODE:
		2481	RETVAL = db->set_re_delim (db, delim);
		2482	OUTPUT:
		2483	RETVAL
		2484
		2485	int set_re_pad (DB *db, int re_pad)
		2486	CODE:
		2487	RETVAL = db->set_re_pad (db, re_pad);
		2488	OUTPUT:
		2489	RETVAL
		2490
		2491	int set_re_source (DB *db, char *source)
		2492	CODE:
		2493	RETVAL = db->set_re_source (db, source);
		2494	OUTPUT:
		2495	RETVAL
		2496
		2497	int set_re_len (DB *db, U32 re_len)
		2498	CODE:
		2499	RETVAL = db->set_re_len (db, re_len);
		2500	OUTPUT:
		2501	RETVAL
		2502
		2503	int set_h_ffactor (DB *db, U32 h_ffactor)
		2504	CODE:
		2505	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2506	OUTPUT:
		2507	RETVAL
		2508
		2509	int set_h_nelem (DB *db, U32 h_nelem)
		2510	CODE:
		2511	RETVAL = db->set_h_nelem (db, h_nelem);
		2512	OUTPUT:
		2513	RETVAL
		2514
		2515	int set_q_extentsize (DB *db, U32 extentsize)
		2516	CODE:
		2517	RETVAL = db->set_q_extentsize (db, extentsize);
		2518	OUTPUT:
		2519	RETVAL
		2520
		2521	DBC *
		2522	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2523	CODE:
		2524	errno = db->cursor (db, txn, &RETVAL, flags);
		2525	if (errno)
		2526	croak ("DB->cursor: %s", db_strerror (errno));
		2527	OUTPUT:
		2528	RETVAL
		2529
		2530	#if DB_VERSION_MINOR >= 3
		2531
		2532	DB_SEQUENCE *
		2533	sequence (DB *db, U32 flags = 0)
		2534	CODE:
		2535	{
		2536	errno = db_sequence_create (&RETVAL, db, flags);
		2537	if (errno)
		2538	croak ("db_sequence_create: %s", db_strerror (errno));
		2539	}
		2540	OUTPUT:
		2541	RETVAL
		2542
		2543	#endif
		2544
		2545
		2546	MODULE = BDB PACKAGE = BDB::Txn
		2547
		2548	void
		2549	DESTROY (DB_TXN_ornuked *txn)
		2550	CODE:
		2551	if (txn)
		2552	txn->abort (txn);
		2553
		2554	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2555	CODE:
		2556	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2557	OUTPUT:
		2558	RETVAL
		2559
		2560	int failed (DB_TXN *txn)
		2561	CODE:
		2562	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2563	OUTPUT:
		2564	RETVAL
		2565
		2566
		2567	MODULE = BDB PACKAGE = BDB::Cursor
		2568
		2569	void
		2570	DESTROY (DBC_ornuked *dbc)
		2571	CODE:
		2572	if (dbc)
		2573	dbc->c_close (dbc);
		2574
		2575	#if DB_VERSION_MINOR >= 6
		2576
		2577	int set_priority (DBC *dbc, int priority)
		2578	CODE:
		2579	dbc->set_priority (dbc, priority);
		2580
		2581	#endif
		2582
		2583	#if DB_VERSION_MINOR >= 3
		2584
		2585	MODULE = BDB PACKAGE = BDB::Sequence
		2586
		2587	void
		2588	DESTROY (DB_SEQUENCE_ornuked *seq)
		2589	CODE:
		2590	if (seq)
		2591	seq->close (seq, 0);
		2592
		2593	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2594	CODE:
		2595	RETVAL = seq->initial_value (seq, value);
		2596	OUTPUT:
		2597	RETVAL
		2598
		2599	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2600	CODE:
		2601	RETVAL = seq->set_cachesize (seq, size);
		2602	OUTPUT:
		2603	RETVAL
		2604
		2605	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2606	CODE:
		2607	RETVAL = seq->set_flags (seq, flags);
		2608	OUTPUT:
		2609	RETVAL
		2610
		2611	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2612	CODE:
		2613	RETVAL = seq->set_range (seq, min, max);
		2614	OUTPUT:
		2615	RETVAL
		2616
		2617	#endif
		2618
		2619

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