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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 1.46 by root, Wed Jul 9 21:16:14 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
36	*/	42	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64	44
39	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
40	# else	46	typedef DB_TXN DB_TXN_ornuked;
41	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
42	# endif	48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
		50
		51	typedef SV SV8; /* byte-sv, used for argument-checking */
		52	typedef char *bdb_filename;
		53
		54	static SV *prepare_cb;
		55
		56	#if DB_VERSION_MINOR >= 6
		57	# define c_close close
		58	# define c_count count
		59	# define c_del del
		60	# define c_dup dup
		61	# define c_get get
		62	# define c_pget pget
		63	# define c_put put
43	#endif	64	#endif
44		65
45	typedef SV SV8; /* byte-sv, used for argument-checking */
46	typedef char *octetstring;
47
48	static SV *prepare_cb;
49
50	static inline char *	66	static char *
		67	get_bdb_filename (SV *sv)
		68	{
		69	if (!SvOK (sv))
		70	return 0;
		71
		72	#if _WIN32
		73	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		74	{
		75	STRLEN len;
		76	char *src = SvPVbyte (sv, len);
		77	SV *t1 = sv_newmortal ();
		78	SV *t2 = sv_newmortal ();
		79
		80	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		81	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		82
		83	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		84	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		85	SvPOK_only (t2);
		86	SvPVX (t2)[len] = 0;
		87	SvCUR_set (t2, len);
		88
		89	return SvPVX (t2);
		90	}
		91	#else
		92	return SvPVbyte_nolen (sv);
		93	#endif
		94	}
		95
		96	static void
		97	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		98	{
		99	printf ("err[%s]\n", msg);
		100	}
		101
		102	static void
		103	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		104	{
		105	printf ("msg[%s]\n", msg);
		106	}
		107
		108	static char *
51	strdup_ornull (const char *s)	109	strdup_ornull (const char *s)
52	{	110	{
53	return s ? strdup (s) : 0;	111	return s ? strdup (s) : 0;
54	}	112	}
55		113
		114	static void
		115	sv_to_dbt (DBT *dbt, SV *sv)
		116	{
		117	STRLEN len;
		118	char *data = SvPVbyte (sv, len);
		119
		120	dbt->data = malloc (len);
		121	memcpy (dbt->data, data, len);
		122	dbt->size = len;
		123	dbt->flags = DB_DBT_REALLOC;
		124	}
		125
		126	static void
		127	dbt_to_sv (SV *sv, DBT *dbt)
		128	{
		129	if (sv)
		130	{
		131	SvREADONLY_off (sv);
		132	sv_setpvn_mg (sv, dbt->data, dbt->size);
		133	SvREFCNT_dec (sv);
		134	}
		135
		136	free (dbt->data);
		137	}
		138
56	enum {	139	enum {
57	REQ_QUIT,	140	REQ_QUIT,
58	REQ_ENV_OPEN, REQ_ENV_CLOSE,	141	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		142	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
59	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT,	143	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		144	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		145	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		146	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		147	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
60	};	148	};
61		149
62	typedef struct aio_cb	150	typedef struct bdb_cb
63	{	151	{
64	struct aio_cb *volatile next;	152	struct bdb_cb *volatile next;
65	SV *callback;	153	SV *callback;
66	int type, pri, result;	154	int type, pri, result;
67		155
68	DB_ENV *env;	156	DB_ENV *env;
69	DB *db;	157	DB *db;
70	DB_TXN *txn;	158	DB_TXN *txn;
71	DBC *cursor;	159	DBC *dbc;
		160
		161	UV uv1;
72	int int1, int2;	162	int int1, int2;
73	U32 uint1, uint2;	163	U32 uint1, uint2;
74	char *buf1, *buf2;	164	char *buf1, *buf2, *buf3;
		165	SV *sv1, *sv2, *sv3;
75		166
76	DBT dbt1, dbt2, dbt3;	167	DBT dbt1, dbt2, dbt3;
77	} aio_cb;	168	DB_KEY_RANGE key_range;
		169	DB_SEQUENCE *seq;
		170	db_seq_t seq_t;
		171	} bdb_cb;
78		172
79	typedef aio_cb *aio_req;	173	typedef bdb_cb *bdb_req;
80		174
81	enum {	175	enum {
82	PRI_MIN = -4,	176	PRI_MIN = -4,
83	PRI_MAX = 4,	177	PRI_MAX = 4,
84		178
…		…
87	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	181	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
88	};	182	};
89		183
90	#define AIO_TICKS ((1000000 + 1023) >> 10)	184	#define AIO_TICKS ((1000000 + 1023) >> 10)
91		185
		186	static SV *on_next_submit;
		187
92	static unsigned int max_poll_time = 0;	188	static unsigned int max_poll_time = 0;
93	static unsigned int max_poll_reqs = 0;	189	static unsigned int max_poll_reqs = 0;
94		190
95	/* calculcate time difference in ~1/AIO_TICKS of a second */	191	/* calculcate time difference in ~1/AIO_TICKS of a second */
96	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	192	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
101		197
102	static int next_pri = DEFAULT_PRI + PRI_BIAS;	198	static int next_pri = DEFAULT_PRI + PRI_BIAS;
103		199
104	static unsigned int started, idle, wanted;	200	static unsigned int started, idle, wanted;
105		201
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 */	202	/* worker threads management */
116	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	203	static mutex_t wrklock = X_MUTEX_INIT;
117		204
118	typedef struct worker {	205	typedef struct worker {
119	/* locked by wrklock */	206	/* locked by wrklock */
120	struct worker *prev, *next;	207	struct worker *prev, *next;
121		208
122	pthread_t tid;	209	thread_t tid;
123		210
124	/* locked by reslock, reqlock or wrklock */	211	/* locked by reslock, reqlock or wrklock */
125	aio_req req; /* currently processed request */	212	bdb_req req; /* currently processed request */
126	void *dbuf;	213	void *dbuf;
127	DIR *dirp;	214	DIR *dirp;
128	} worker;	215	} worker;
129		216
130	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	217	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
142	}	229	}
143		230
144	static volatile unsigned int nreqs, nready, npending;	231	static volatile unsigned int nreqs, nready, npending;
145	static volatile unsigned int max_idle = 4;	232	static volatile unsigned int max_idle = 4;
146	static volatile unsigned int max_outstanding = 0xffffffff;	233	static volatile unsigned int max_outstanding = 0xffffffff;
147	static int respipe [2];	234	static int respipe_osf [2], respipe [2] = { -1, -1 };
148		235
149	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	236	static mutex_t reslock = X_MUTEX_INIT;
150	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	237	static mutex_t reqlock = X_MUTEX_INIT;
151	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	238	static cond_t reqwait = X_COND_INIT;
152		239
153	#if WORDACCESS_UNSAFE	240	#if WORDACCESS_UNSAFE
154		241
155	static unsigned int get_nready ()	242	static unsigned int get_nready (void)
156	{	243	{
157	unsigned int retval;	244	unsigned int retval;
158		245
159	LOCK (reqlock);	246	X_LOCK (reqlock);
160	retval = nready;	247	retval = nready;
161	UNLOCK (reqlock);	248	X_UNLOCK (reqlock);
162		249
163	return retval;	250	return retval;
164	}	251	}
165		252
166	static unsigned int get_npending ()	253	static unsigned int get_npending (void)
167	{	254	{
168	unsigned int retval;	255	unsigned int retval;
169		256
170	LOCK (reslock);	257	X_LOCK (reslock);
171	retval = npending;	258	retval = npending;
172	UNLOCK (reslock);	259	X_UNLOCK (reslock);
173		260
174	return retval;	261	return retval;
175	}	262	}
176		263
177	static unsigned int get_nthreads ()	264	static unsigned int get_nthreads (void)
178	{	265	{
179	unsigned int retval;	266	unsigned int retval;
180		267
181	LOCK (wrklock);	268	X_LOCK (wrklock);
182	retval = started;	269	retval = started;
183	UNLOCK (wrklock);	270	X_UNLOCK (wrklock);
184		271
185	return retval;	272	return retval;
186	}	273	}
187		274
188	#else	275	#else
…		…
197	* a somewhat faster data structure might be nice, but	284	* a somewhat faster data structure might be nice, but
198	* with 8 priorities this actually needs <20 insns	285	* with 8 priorities this actually needs <20 insns
199	* per shift, the most expensive operation.	286	* per shift, the most expensive operation.
200	*/	287	*/
201	typedef struct {	288	typedef struct {
202	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	289	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
203	int size;	290	int size;
204	} reqq;	291	} reqq;
205		292
206	static reqq req_queue;	293	static reqq req_queue;
207	static reqq res_queue;	294	static reqq res_queue;
208		295
209	int reqq_push (reqq *q, aio_req req)	296	int reqq_push (reqq *q, bdb_req req)
210	{	297	{
211	int pri = req->pri;	298	int pri = req->pri;
212	req->next = 0;	299	req->next = 0;
213		300
214	if (q->qe[pri])	301	if (q->qe[pri])
…		…
220	q->qe[pri] = q->qs[pri] = req;	307	q->qe[pri] = q->qs[pri] = req;
221		308
222	return q->size++;	309	return q->size++;
223	}	310	}
224		311
225	aio_req reqq_shift (reqq *q)	312	bdb_req reqq_shift (reqq *q)
226	{	313	{
227	int pri;	314	int pri;
228		315
229	if (!q->size)	316	if (!q->size)
230	return 0;	317	return 0;
231		318
232	--q->size;	319	--q->size;
233		320
234	for (pri = NUM_PRI; pri--; )	321	for (pri = NUM_PRI; pri--; )
235	{	322	{
236	aio_req req = q->qs[pri];	323	bdb_req req = q->qs[pri];
237		324
238	if (req)	325	if (req)
239	{	326	{
240	if (!(q->qs[pri] = req->next))	327	if (!(q->qs[pri] = req->next))
241	q->qe[pri] = 0;	328	q->qe[pri] = 0;
…		…
245	}	332	}
246		333
247	abort ();	334	abort ();
248	}	335	}
249		336
250	static int poll_cb ();	337	static int poll_cb (void);
251	static void req_free (aio_req req);	338	static void req_free (bdb_req req);
252	static void req_cancel (aio_req req);	339	static void req_cancel (bdb_req req);
253		340
254	static int req_invoke (aio_req req)	341	static int req_invoke (bdb_req req)
255	{	342	{
256	dSP;	343	dSP;
257		344
258	if (SvOK (req->callback))	345	if (req->callback)
259	{	346	{
260	ENTER;	347	ENTER;
261	SAVETMPS;	348	SAVETMPS;
262	PUSHMARK (SP);	349	PUSHMARK (SP);
263	EXTEND (SP, 1);
264		350
265	switch (req->type)	351	switch (req->type)
266	{	352	{
		353	case REQ_DB_CLOSE:
		354	SvREFCNT_dec (req->sv1);
		355	break;
		356
		357	case REQ_DB_GET:
		358	case REQ_DB_PGET:
		359	dbt_to_sv (req->sv3, &req->dbt3);
		360	break;
		361
		362	case REQ_C_GET:
		363	case REQ_C_PGET:
		364	dbt_to_sv (req->sv1, &req->dbt1);
		365	dbt_to_sv (req->sv2, &req->dbt2);
		366	dbt_to_sv (req->sv3, &req->dbt3);
		367	break;
		368
		369	case REQ_DB_PUT:
		370	case REQ_C_PUT:
		371	dbt_to_sv (0, &req->dbt1);
		372	dbt_to_sv (0, &req->dbt2);
		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	SvREADONLY_off (req->sv1);
		384	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		385	SvREFCNT_dec (req->sv1);
		386	}
		387	break;
		388
		389	case REQ_SEQ_GET:
		390	SvREADONLY_off (req->sv1);
		391
		392	if (sizeof (IV) > 4)
		393	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		394	else
		395	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		396
		397	SvREFCNT_dec (req->sv1);
		398	break;
267	}	399	}
268		400
269	errno = req->result;	401	errno = req->result;
270		402
271	PUTBACK;	403	PUTBACK;
…		…
277	}	409	}
278		410
279	return !SvTRUE (ERRSV);	411	return !SvTRUE (ERRSV);
280	}	412	}
281		413
282	static void req_free (aio_req req)	414	static void req_free (bdb_req req)
283	{	415	{
		416	SvREFCNT_dec (req->callback);
		417
284	free (req->buf1);	418	free (req->buf1);
285	free (req->buf2);	419	free (req->buf2);
		420	free (req->buf3);
		421
286	Safefree (req);	422	Safefree (req);
287	}	423	}
288		424
289	static void *aio_proc (void *arg);	425	#ifdef USE_SOCKETS_AS_HANDLES
		426	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		427	#else
		428	# define TO_SOCKET(x) (x)
		429	#endif
		430
		431	static void
		432	create_respipe (void)
		433	{
		434	#ifdef _WIN32
		435	int arg; /* argg */
		436	#endif
		437	int old_readfd = respipe [0];
		438
		439	if (respipe [1] >= 0)
		440	respipe_close (TO_SOCKET (respipe [1]));
		441
		442	#ifdef _WIN32
		443	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		444	#else
		445	if (pipe (respipe))
		446	#endif
		447	croak ("unable to initialize result pipe");
		448
		449	if (old_readfd >= 0)
		450	{
		451	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		452	croak ("unable to initialize result pipe(2)");
		453
		454	respipe_close (respipe [0]);
		455	respipe [0] = old_readfd;
		456	}
		457
		458	#ifdef _WIN32
		459	arg = 1;
		460	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		461	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		462	#else
		463	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		464	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		465	#endif
		466	croak ("unable to initialize result pipe(3)");
		467
		468	respipe_osf [0] = TO_SOCKET (respipe [0]);
		469	respipe_osf [1] = TO_SOCKET (respipe [1]);
		470	}
		471
		472	X_THREAD_PROC (bdb_proc);
290		473
291	static void start_thread (void)	474	static void start_thread (void)
292	{	475	{
293	sigset_t fullsigset, oldsigset;
294	pthread_attr_t attr;
295
296	worker *wrk = calloc (1, sizeof (worker));	476	worker *wrk = calloc (1, sizeof (worker));
297		477
298	if (!wrk)	478	if (!wrk)
299	croak ("unable to allocate worker thread data");	479	croak ("unable to allocate worker thread data");
300		480
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);	481	X_LOCK (wrklock);
310	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
311
312	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	482	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
313	{	483	{
314	wrk->prev = &wrk_first;	484	wrk->prev = &wrk_first;
315	wrk->next = wrk_first.next;	485	wrk->next = wrk_first.next;
316	wrk_first.next->prev = wrk;	486	wrk_first.next->prev = wrk;
317	wrk_first.next = wrk;	487	wrk_first.next = wrk;
318	++started;	488	++started;
319	}	489	}
320	else	490	else
321	free (wrk);	491	free (wrk);
322		492
323	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
324	UNLOCK (wrklock);	493	X_UNLOCK (wrklock);
325	}	494	}
326		495
327	static void maybe_start_thread ()	496	static void maybe_start_thread (void)
328	{	497	{
329	if (get_nthreads () >= wanted)	498	if (get_nthreads () >= wanted)
330	return;	499	return;
331		500
332	/* todo: maybe use idle here, but might be less exact */	501	/* todo: maybe use idle here, but might be less exact */
…		…
334	return;	503	return;
335		504
336	start_thread ();	505	start_thread ();
337	}	506	}
338		507
339	static void req_send (aio_req req)	508	static void req_send (bdb_req req)
340	{	509	{
341	SV *wait_callback = 0;	510	SV *wait_callback = 0;
342		511
		512	if (on_next_submit)
		513	{
		514	dSP;
		515	SV *cb = sv_2mortal (on_next_submit);
		516
		517	on_next_submit = 0;
		518
		519	PUSHMARK (SP);
		520	PUTBACK;
		521	call_sv (cb, G_DISCARD | G_EVAL);
		522	}
		523
343	// synthesize callback if none given	524	// synthesize callback if none given
344	if (!SvOK (req->callback))	525	if (!req->callback)
345	{	526	{
		527	int count;
		528
346	dSP;	529	dSP;
347	PUSHMARK (SP);	530	PUSHMARK (SP);
348	PUTBACK;	531	PUTBACK;
349	int count = call_sv (prepare_cb, G_ARRAY);	532	count = call_sv (prepare_cb, G_ARRAY);
350	SPAGAIN;	533	SPAGAIN;
351		534
352	if (count != 2)	535	if (count != 2)
353	croak ("prepare callback must return exactly two values\n");	536	croak ("prepare callback must return exactly two values\n");
354		537
355	wait_callback = SvREFCNT_inc (POPs);	538	wait_callback = POPs;
356	SvREFCNT_dec (req->callback);	539	SvREFCNT_dec (req->callback);
357	req->callback = SvREFCNT_inc (POPs);	540	req->callback = SvREFCNT_inc (POPs);
358	}	541	}
359		542
360	++nreqs;	543	++nreqs;
361		544
362	LOCK (reqlock);	545	X_LOCK (reqlock);
363	++nready;	546	++nready;
364	reqq_push (&req_queue, req);	547	reqq_push (&req_queue, req);
365	pthread_cond_signal (&reqwait);	548	X_COND_SIGNAL (reqwait);
366	UNLOCK (reqlock);	549	X_UNLOCK (reqlock);
367		550
368	maybe_start_thread ();	551	maybe_start_thread ();
369		552
370	if (wait_callback)	553	if (wait_callback)
371	{	554	{
372	dSP;	555	dSP;
373	PUSHMARK (SP);	556	PUSHMARK (SP);
374	PUTBACK;	557	PUTBACK;
375	call_sv (wait_callback, G_DISCARD);	558	call_sv (wait_callback, G_DISCARD);
376	SvREFCNT_dec (wait_callback);
377	}	559	}
378	}	560	}
379		561
380	static void end_thread (void)	562	static void end_thread (void)
381	{	563	{
382	aio_req req;	564	bdb_req req;
383		565
384	Newz (0, req, 1, aio_cb);	566	Newz (0, req, 1, bdb_cb);
385		567
386	req->type = REQ_QUIT;	568	req->type = REQ_QUIT;
387	req->pri = PRI_MAX + PRI_BIAS;	569	req->pri = PRI_MAX + PRI_BIAS;
388		570
389	LOCK (reqlock);	571	X_LOCK (reqlock);
390	reqq_push (&req_queue, req);	572	reqq_push (&req_queue, req);
391	pthread_cond_signal (&reqwait);	573	X_COND_SIGNAL (reqwait);
392	UNLOCK (reqlock);	574	X_UNLOCK (reqlock);
393		575
394	LOCK (wrklock);	576	X_LOCK (wrklock);
395	--started;	577	--started;
396	UNLOCK (wrklock);	578	X_UNLOCK (wrklock);
397	}	579	}
398		580
399	static void set_max_idle (int nthreads)	581	static void set_max_idle (int nthreads)
400	{	582	{
401	if (WORDACCESS_UNSAFE) LOCK (reqlock);	583	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
402	max_idle = nthreads <= 0 ? 1 : nthreads;	584	max_idle = nthreads <= 0 ? 1 : nthreads;
403	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	585	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
404	}	586	}
405		587
406	static void min_parallel (int nthreads)	588	static void min_parallel (int nthreads)
407	{	589	{
408	if (wanted < nthreads)	590	if (wanted < nthreads)
…		…
416		598
417	while (started > wanted)	599	while (started > wanted)
418	end_thread ();	600	end_thread ();
419	}	601	}
420		602
421	static void poll_wait ()	603	static void poll_wait (void)
422	{	604	{
423	fd_set rfd;	605	fd_set rfd;
424		606
425	while (nreqs)	607	while (nreqs)
426	{	608	{
427	int size;	609	int size;
428	if (WORDACCESS_UNSAFE) LOCK (reslock);	610	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
429	size = res_queue.size;	611	size = res_queue.size;
430	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	612	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
431		613
432	if (size)	614	if (size)
433	return;	615	return;
434		616
435	maybe_start_thread ();	617	maybe_start_thread ();
436		618
437	FD_ZERO(&rfd);	619	FD_ZERO (&rfd);
438	FD_SET(respipe [0], &rfd);	620	FD_SET (respipe [0], &rfd);
439		621
440	select (respipe [0] + 1, &rfd, 0, 0, 0);	622	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
441	}	623	}
442	}	624	}
443		625
444	static int poll_cb ()	626	static int poll_cb (void)
445	{	627	{
446	dSP;	628	dSP;
447	int count = 0;	629	int count = 0;
448	int maxreqs = max_poll_reqs;	630	int maxreqs = max_poll_reqs;
449	int do_croak = 0;	631	int do_croak = 0;
450	struct timeval tv_start, tv_now;	632	struct timeval tv_start, tv_now;
451	aio_req req;	633	bdb_req req;
452		634
453	if (max_poll_time)	635	if (max_poll_time)
454	gettimeofday (&tv_start, 0);	636	gettimeofday (&tv_start, 0);
455		637
456	for (;;)	638	for (;;)
457	{	639	{
458	for (;;)	640	for (;;)
459	{	641	{
460	maybe_start_thread ();	642	maybe_start_thread ();
461		643
462	LOCK (reslock);	644	X_LOCK (reslock);
463	req = reqq_shift (&res_queue);	645	req = reqq_shift (&res_queue);
464		646
465	if (req)	647	if (req)
466	{	648	{
467	--npending;	649	--npending;
468		650
469	if (!res_queue.size)	651	if (!res_queue.size)
470	{	652	{
471	/* read any signals sent by the worker threads */	653	/* read any signals sent by the worker threads */
472	char buf [4];	654	char buf [4];
473	while (read (respipe [0], buf, 4) == 4)	655	while (respipe_read (respipe [0], buf, 4) == 4)
474	;	656	;
475	}	657	}
476	}	658	}
477		659
478	UNLOCK (reslock);	660	X_UNLOCK (reslock);
479		661
480	if (!req)	662	if (!req)
481	break;	663	break;
482		664
483	--nreqs;	665	--nreqs;
…		…
513	}	695	}
514		696
515	return count;	697	return count;
516	}	698	}
517		699
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	/*****************************************************************************/	700	/*****************************************************************************/
531		701
532	static void *aio_proc (void *thr_arg)	702	X_THREAD_PROC (bdb_proc)
533	{	703	{
534	aio_req req;	704	bdb_req req;
535	struct timespec ts;	705	struct timespec ts;
536	worker *self = (worker *)thr_arg;	706	worker *self = (worker *)thr_arg;
537		707
538	/* try to distribute timeouts somewhat evenly */	708	/* try to distribute timeouts somewhat evenly */
539	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	709	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
540	* (1000000000UL / 1024UL);
541		710
542	for (;;)	711	for (;;)
543	{	712	{
544	ts.tv_sec = time (0) + IDLE_TIMEOUT;	713	ts.tv_sec = time (0) + IDLE_TIMEOUT;
545		714
546	LOCK (reqlock);	715	X_LOCK (reqlock);
547		716
548	for (;;)	717	for (;;)
549	{	718	{
550	self->req = req = reqq_shift (&req_queue);	719	self->req = req = reqq_shift (&req_queue);
551		720
552	if (req)	721	if (req)
553	break;	722	break;
554		723
555	++idle;	724	++idle;
556		725
557	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	726	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
558	== ETIMEDOUT)	727	== ETIMEDOUT)
559	{	728	{
560	if (idle > max_idle)	729	if (idle > max_idle)
561	{	730	{
562	--idle;	731	--idle;
563	UNLOCK (reqlock);	732	X_UNLOCK (reqlock);
564	LOCK (wrklock);	733	X_LOCK (wrklock);
565	--started;	734	--started;
566	UNLOCK (wrklock);	735	X_UNLOCK (wrklock);
567	goto quit;	736	goto quit;
568	}	737	}
569		738
570	/* we are allowed to idle, so do so without any timeout */	739	/* we are allowed to idle, so do so without any timeout */
571	pthread_cond_wait (&reqwait, &reqlock);	740	X_COND_WAIT (reqwait, reqlock);
572	ts.tv_sec = time (0) + IDLE_TIMEOUT;	741	ts.tv_sec = time (0) + IDLE_TIMEOUT;
573	}	742	}
574		743
575	--idle;	744	--idle;
576	}	745	}
577		746
578	--nready;	747	--nready;
579		748
580	UNLOCK (reqlock);	749	X_UNLOCK (reqlock);
581		750
582	switch (req->type)	751	switch (req->type)
583	{	752	{
584	case REQ_QUIT:	753	case REQ_QUIT:
		754	req->result = ENOSYS;
585	goto quit;	755	goto quit;
586		756
587	case REQ_ENV_OPEN:	757	case REQ_ENV_OPEN:
588	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);	758	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
589	break;	759	break;
590		760
591	case REQ_ENV_CLOSE:	761	case REQ_ENV_CLOSE:
592	req->result = req->env->close (req->env, req->uint1);	762	req->result = req->env->close (req->env, req->uint1);
593	break;	763	break;
594		764
		765	case REQ_ENV_TXN_CHECKPOINT:
		766	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		767	break;
		768
		769	case REQ_ENV_LOCK_DETECT:
		770	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		771	break;
		772
		773	case REQ_ENV_MEMP_SYNC:
		774	req->result = req->env->memp_sync (req->env, 0);
		775	break;
		776
		777	case REQ_ENV_MEMP_TRICKLE:
		778	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		779	break;
		780
		781	case REQ_ENV_DBREMOVE:
		782	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		783	break;
		784
		785	case REQ_ENV_DBRENAME:
		786	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		787	break;
		788
595	case REQ_DB_OPEN:	789	case REQ_DB_OPEN:
596	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);	790	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
597	break;	791	break;
598		792
599	case REQ_DB_CLOSE:	793	case REQ_DB_CLOSE:
…		…
606		800
607	case REQ_DB_SYNC:	801	case REQ_DB_SYNC:
608	req->result = req->db->sync (req->db, req->uint1);	802	req->result = req->db->sync (req->db, req->uint1);
609	break;	803	break;
610		804
		805	case REQ_DB_UPGRADE:
		806	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		807	break;
		808
611	case REQ_DB_PUT:	809	case REQ_DB_PUT:
612	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);	810	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
613	break;	811	break;
614		812
		813	#if DB_VERSION_MINOR >= 6
		814	case REQ_DB_EXISTS:
		815	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		816	break;
		817	#endif
		818	case REQ_DB_GET:
		819	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		820	break;
		821
		822	case REQ_DB_PGET:
		823	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		824	break;
		825
		826	case REQ_DB_DEL:
		827	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		828	break;
		829
		830	case REQ_DB_KEY_RANGE:
		831	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		832	break;
		833
		834	case REQ_TXN_COMMIT:
		835	req->result = req->txn->commit (req->txn, req->uint1);
		836	break;
		837
		838	case REQ_TXN_ABORT:
		839	req->result = req->txn->abort (req->txn);
		840	break;
		841
		842	case REQ_TXN_FINISH:
		843	if (req->txn->flags & TXN_DEADLOCK)
		844	{
		845	req->result = req->txn->abort (req->txn);
		846	if (!req->result)
		847	req->result = DB_LOCK_DEADLOCK;
		848	}
		849	else
		850	req->result = req->txn->commit (req->txn, req->uint1);
		851	break;
		852
		853	case REQ_C_CLOSE:
		854	req->result = req->dbc->c_close (req->dbc);
		855	break;
		856
		857	case REQ_C_COUNT:
		858	{
		859	db_recno_t recno;
		860	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		861	req->uv1 = recno;
		862	}
		863	break;
		864
		865	case REQ_C_PUT:
		866	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		867	break;
		868
		869	case REQ_C_GET:
		870	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		871	break;
		872
		873	case REQ_C_PGET:
		874	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		875	break;
		876
		877	case REQ_C_DEL:
		878	req->result = req->dbc->c_del (req->dbc, req->uint1);
		879	break;
		880
		881	case REQ_SEQ_OPEN:
		882	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		883	break;
		884
		885	case REQ_SEQ_CLOSE:
		886	req->result = req->seq->close (req->seq, req->uint1);
		887	break;
		888
		889	case REQ_SEQ_GET:
		890	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		891	break;
		892
		893	case REQ_SEQ_REMOVE:
		894	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		895	break;
		896
615	default:	897	default:
616	req->result = ENOSYS;	898	req->result = ENOSYS;
617	break;	899	break;
618	}	900	}
619		901
		902	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		903	req->txn->flags |= TXN_DEADLOCK;
		904
620	LOCK (reslock);	905	X_LOCK (reslock);
621		906
622	++npending;	907	++npending;
623		908
624	if (!reqq_push (&res_queue, req))	909	if (!reqq_push (&res_queue, req))
625	/* write a dummy byte to the pipe so fh becomes ready */	910	/* write a dummy byte to the pipe so fh becomes ready */
626	write (respipe [1], &respipe, 1);	911	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
627		912
628	self->req = 0;	913	self->req = 0;
629	worker_clear (self);	914	worker_clear (self);
630		915
631	UNLOCK (reslock);	916	X_UNLOCK (reslock);
632	}	917	}
633		918
634	quit:	919	quit:
635	LOCK (wrklock);	920	X_LOCK (wrklock);
636	worker_free (self);	921	worker_free (self);
637	UNLOCK (wrklock);	922	X_UNLOCK (wrklock);
638		923
639	return 0;	924	return 0;
640	}	925	}
641		926
642	/*****************************************************************************/	927	/*****************************************************************************/
643		928
644	static void atfork_prepare (void)	929	static void atfork_prepare (void)
645	{	930	{
646	LOCK (wrklock);	931	X_LOCK (wrklock);
647	LOCK (reqlock);	932	X_LOCK (reqlock);
648	LOCK (reslock);	933	X_LOCK (reslock);
649	}	934	}
650		935
651	static void atfork_parent (void)	936	static void atfork_parent (void)
652	{	937	{
653	UNLOCK (reslock);	938	X_UNLOCK (reslock);
654	UNLOCK (reqlock);	939	X_UNLOCK (reqlock);
655	UNLOCK (wrklock);	940	X_UNLOCK (wrklock);
656	}	941	}
657		942
658	static void atfork_child (void)	943	static void atfork_child (void)
659	{	944	{
660	aio_req prv;	945	bdb_req prv;
661		946
662	while (prv = reqq_shift (&req_queue))	947	while (prv = reqq_shift (&req_queue))
663	req_free (prv);	948	req_free (prv);
664		949
665	while (prv = reqq_shift (&res_queue))	950	while (prv = reqq_shift (&res_queue))
…		…
680	idle = 0;	965	idle = 0;
681	nreqs = 0;	966	nreqs = 0;
682	nready = 0;	967	nready = 0;
683	npending = 0;	968	npending = 0;
684		969
685	close (respipe [0]);
686	close (respipe [1]);
687	create_pipe ();	970	create_respipe ();
688		971
689	atfork_parent ();	972	atfork_parent ();
690	}	973	}
691		974
692	#define dREQ(reqtype) \	975	#define dREQ(reqtype) \
693	aio_req req; \	976	bdb_req req; \
694	int req_pri = next_pri; \	977	int req_pri = next_pri; \
695	next_pri = DEFAULT_PRI + PRI_BIAS; \	978	next_pri = DEFAULT_PRI + PRI_BIAS; \
696	\	979	\
697	if (SvOK (callback) && !SvROK (callback)) \	980	if (callback && SvOK (callback)) \
698	croak ("callback must be undef or of reference type"); \	981	croak ("callback has illegal type or extra arguments"); \
699	\	982	\
700	Newz (0, req, 1, aio_cb); \	983	Newz (0, req, 1, bdb_cb); \
701	if (!req) \	984	if (!req) \
702	croak ("out of memory during aio_req allocation"); \	985	croak ("out of memory during bdb_req allocation"); \
703	\	986	\
704	req->callback = newSVsv (callback); \	987	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
705	req->type = (reqtype); \	988	req->type = (reqtype); \
706	req->pri = req_pri	989	req->pri = req_pri
707		990
708	#define REQ_SEND \	991	#define REQ_SEND \
709	req_send (req)	992	req_send (req)
710		993
711	#define SvPTR(var, arg, type, class) \	994	#define SvPTR(var, arg, type, class, nullok) \
712	if (!SvOK (arg)) \	995	if (!SvOK (arg)) \
		996	{ \
		997	if (nullok != 1) \
		998	croak (# var " must be a " # class " object, not undef"); \
		999	\
713	(var) = 0; \	1000	(var) = 0; \
		1001	} \
714	else if (sv_derived_from ((arg), # class)) \	1002	else if (sv_derived_from ((arg), # class)) \
715	{ \	1003	{ \
716	IV tmp = SvIV ((SV*) SvRV (arg)); \	1004	IV tmp = SvIV ((SV*) SvRV (arg)); \
717	(var) = INT2PTR (type, tmp); \	1005	(var) = INT2PTR (type, tmp); \
		1006	if (!var && nullok != 2) \
		1007	croak (# var " is not a valid " # class " object anymore"); \
718	} \	1008	} \
719	else \	1009	else \
720	Perl_croak (# var " is not of type " # class)	1010	croak (# var " is not of type " # class);
721		1011
722	inline void	1012	static void
723	set_dbt (DBT *dbt, SV *sv)	1013	ptr_nuke (SV *sv)
724	{	1014	{
725	STRLEN len;	1015	assert (SvROK (sv));
726	char *data = SvPVbyte (sv, len);	1016	sv_setiv (SvRV (sv), 0);
727
728	dbt->data = malloc (len);
729	memcpy (dbt->data, data, len);
730	dbt->size = len;
731	}	1017	}
732		1018
		1019	static int
		1020	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1021	{
		1022	if (*mg->mg_ptr == '!') // should always be the case
		1023	if (-30999 <= errno && errno <= -30800)
		1024	{
		1025	sv_setnv (sv, (NV)errno);
		1026	sv_setpv (sv, db_strerror (errno));
		1027	SvNOK_on (sv); /* what a wonderful hack! */
		1028	// ^^^ copied from perl sources
		1029	return 0;
		1030	}
		1031
		1032	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1033	}
		1034
		1035	static MGVTBL vtbl_errno;
		1036
		1037	// this wonderful hack :( patches perl's $! variable to support our errno values
		1038	static void
		1039	patch_errno (void)
		1040	{
		1041	SV *sv;
		1042	MAGIC *mg;
		1043
		1044	if (!(sv = get_sv ("!", 1)))
		1045	return;
		1046
		1047	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1048	return;
		1049
		1050	if (mg->mg_virtual != &PL_vtbl_sv)
		1051	return;
		1052
		1053	vtbl_errno = PL_vtbl_sv;
		1054	vtbl_errno.svt_get = errno_get;
		1055	mg->mg_virtual = &vtbl_errno;
		1056	}
		1057
		1058	#if __GNUC__ >= 4
		1059	# define noinline __attribute__ ((noinline))
		1060	#else
		1061	# define noinline
		1062	#endif
		1063
		1064	static noinline SV *
		1065	pop_callback (I32 *ritems, SV *sv)
		1066	{
		1067	if (SvROK (sv))
		1068	{
		1069	HV *st;
		1070	GV *gvp;
		1071	CV *cv;
		1072	const char *name;
		1073
		1074	/* forgive me */
		1075	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1076	&& (st = SvSTASH (SvRV (sv)))
		1077	&& (name = HvNAME_get (st))
		1078	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1079	return 0;
		1080
		1081	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1082	{
		1083	--*ritems;
		1084	return (SV *)cv;
		1085	}
		1086	}
		1087
		1088	return 0;
		1089	}
		1090
		1091	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1092
733	MODULE = BDB PACKAGE = BDB	1093	MODULE = BDB PACKAGE = BDB
734		1094
735	PROTOTYPES: ENABLE	1095	PROTOTYPES: ENABLE
736		1096
737	BOOT:	1097	BOOT:
…		…
752	const_iv (INIT_TXN)	1112	const_iv (INIT_TXN)
753	const_iv (RECOVER)	1113	const_iv (RECOVER)
754	const_iv (INIT_TXN)	1114	const_iv (INIT_TXN)
755	const_iv (RECOVER_FATAL)	1115	const_iv (RECOVER_FATAL)
756	const_iv (CREATE)	1116	const_iv (CREATE)
		1117	const_iv (RDONLY)
757	const_iv (USE_ENVIRON)	1118	const_iv (USE_ENVIRON)
758	const_iv (USE_ENVIRON_ROOT)	1119	const_iv (USE_ENVIRON_ROOT)
759	const_iv (LOCKDOWN)	1120	const_iv (LOCKDOWN)
760	const_iv (PRIVATE)	1121	const_iv (PRIVATE)
761	const_iv (REGISTER)	1122	const_iv (REGISTER)
762	const_iv (SYSTEM_MEM)	1123	const_iv (SYSTEM_MEM)
763	const_iv (AUTO_COMMIT)	1124	const_iv (AUTO_COMMIT)
764	const_iv (CDB_ALLDB)	1125	const_iv (CDB_ALLDB)
765	const_iv (DIRECT_DB)	1126	const_iv (DIRECT_DB)
766	const_iv (DIRECT_LOG)
767	const_iv (DSYNC_DB)	1127	const_iv (DSYNC_DB)
768	const_iv (DSYNC_LOG)
769	const_iv (LOG_AUTOREMOVE)
770	const_iv (LOG_INMEMORY)
771	const_iv (NOLOCKING)	1128	const_iv (NOLOCKING)
772	const_iv (MULTIVERSION)
773	const_iv (NOMMAP)	1129	const_iv (NOMMAP)
774	const_iv (NOPANIC)	1130	const_iv (NOPANIC)
775	const_iv (OVERWRITE)	1131	const_iv (OVERWRITE)
776	const_iv (PANIC_ENVIRONMENT)	1132	const_iv (PANIC_ENVIRONMENT)
777	const_iv (REGION_INIT)	1133	const_iv (REGION_INIT)
778	const_iv (TIME_NOTGRANTED)	1134	const_iv (TIME_NOTGRANTED)
779	const_iv (TXN_NOSYNC)	1135	const_iv (TXN_NOSYNC)
780	const_iv (TXN_SNAPSHOT)	1136	const_iv (TXN_NOT_DURABLE)
781	const_iv (TXN_WRITE_NOSYNC)	1137	const_iv (TXN_WRITE_NOSYNC)
		1138	const_iv (WRITECURSOR)
782	const_iv (YIELDCPU)	1139	const_iv (YIELDCPU)
783	const_iv (ENCRYPT_AES)	1140	const_iv (ENCRYPT_AES)
784	const_iv (XA_CREATE)	1141	const_iv (XA_CREATE)
785	const_iv (BTREE)	1142	const_iv (BTREE)
786	const_iv (HASH)	1143	const_iv (HASH)
787	const_iv (QUEUE)	1144	const_iv (QUEUE)
788	const_iv (RECNO)	1145	const_iv (RECNO)
789	const_iv (UNKNOWN)	1146	const_iv (UNKNOWN)
790	const_iv (EXCL)	1147	const_iv (EXCL)
		1148	const_iv (READ_COMMITTED)
791	const_iv (READ_UNCOMMITTED)	1149	const_iv (READ_UNCOMMITTED)
792	const_iv (TRUNCATE)	1150	const_iv (TRUNCATE)
793	const_iv (NOSYNC)	1151	const_iv (NOSYNC)
794	const_iv (CHKSUM)	1152	const_iv (CHKSUM)
795	const_iv (ENCRYPT)	1153	const_iv (ENCRYPT)
796	const_iv (TXN_NOT_DURABLE)
797	const_iv (DUP)	1154	const_iv (DUP)
798	const_iv (DUPSORT)	1155	const_iv (DUPSORT)
799	const_iv (RECNUM)	1156	const_iv (RECNUM)
800	const_iv (RENUMBER)	1157	const_iv (RENUMBER)
801	const_iv (REVSPLITOFF)	1158	const_iv (REVSPLITOFF)
802	const_iv (INORDER)	1159	const_iv (INORDER)
803	const_iv (CONSUME)	1160	const_iv (CONSUME)
804	const_iv (CONSUME_WAIT)	1161	const_iv (CONSUME_WAIT)
		1162	const_iv (GET_BOTH)
		1163	const_iv (GET_BOTH_RANGE)
		1164	//const_iv (SET_RECNO)
		1165	//const_iv (MULTIPLE)
805	const_iv (SNAPSHOT)	1166	const_iv (SNAPSHOT)
806	const_iv (JOIN_ITEM)	1167	const_iv (JOIN_ITEM)
		1168	const_iv (JOIN_NOSORT)
807	const_iv (RMW)	1169	const_iv (RMW)
808		1170
809	const_iv (NOTFOUND)	1171	const_iv (NOTFOUND)
810	const_iv (KEYEMPTY)	1172	const_iv (KEYEMPTY)
811	const_iv (LOCK_DEADLOCK)	1173	const_iv (LOCK_DEADLOCK)
812	const_iv (LOCK_NOTGRANTED)	1174	const_iv (LOCK_NOTGRANTED)
813	const_iv (RUNRECOVERY)	1175	const_iv (RUNRECOVERY)
814	const_iv (OLD_VERSION)	1176	const_iv (OLD_VERSION)
815	const_iv (REP_HANDLE_DEAD)	1177	const_iv (REP_HANDLE_DEAD)
816	const_iv (REP_LOCKOUT)	1178	const_iv (REP_LOCKOUT)
		1179	const_iv (SECONDARY_BAD)
817		1180
818	const_iv (FREE_SPACE)	1181	const_iv (FREE_SPACE)
819	const_iv (FREELIST_ONLY)	1182	const_iv (FREELIST_ONLY)
820		1183
821	const_iv (APPEND)	1184	const_iv (APPEND)
822	const_iv (NODUPDATA)	1185	const_iv (NODUPDATA)
823	const_iv (NOOVERWRITE)	1186	const_iv (NOOVERWRITE)
824		1187
		1188	const_iv (TXN_NOWAIT)
		1189	const_iv (TXN_SYNC)
		1190
825	const_iv (SET_LOCK_TIMEOUT)	1191	const_iv (SET_LOCK_TIMEOUT)
826	const_iv (SET_TXN_TIMEOUT)	1192	const_iv (SET_TXN_TIMEOUT)
		1193
		1194	const_iv (FIRST)
		1195	const_iv (NEXT)
		1196	const_iv (NEXT_DUP)
		1197	const_iv (NEXT_NODUP)
		1198	const_iv (PREV)
		1199	const_iv (PREV_NODUP)
		1200	const_iv (SET)
		1201	const_iv (SET_RANGE)
		1202	const_iv (LAST)
		1203	const_iv (BEFORE)
		1204	const_iv (AFTER)
		1205	const_iv (CURRENT)
		1206	const_iv (KEYFIRST)
		1207	const_iv (KEYLAST)
		1208	const_iv (NODUPDATA)
		1209
		1210	const_iv (FORCE)
		1211
		1212	const_iv (LOCK_DEFAULT)
		1213	const_iv (LOCK_EXPIRE)
		1214	const_iv (LOCK_MAXLOCKS)
		1215	const_iv (LOCK_MAXWRITE)
		1216	const_iv (LOCK_MINLOCKS)
		1217	const_iv (LOCK_MINWRITE)
		1218	const_iv (LOCK_OLDEST)
		1219	const_iv (LOCK_RANDOM)
		1220	const_iv (LOCK_YOUNGEST)
		1221
		1222	const_iv (SEQ_DEC)
		1223	const_iv (SEQ_INC)
		1224	const_iv (SEQ_WRAP)
		1225
		1226	const_iv (BUFFER_SMALL)
		1227	const_iv (DONOTINDEX)
		1228	const_iv (KEYEMPTY )
		1229	const_iv (KEYEXIST )
		1230	const_iv (LOCK_DEADLOCK)
		1231	const_iv (LOCK_NOTGRANTED)
		1232	const_iv (LOG_BUFFER_FULL)
		1233	const_iv (NOSERVER)
		1234	const_iv (NOSERVER_HOME)
		1235	const_iv (NOSERVER_ID)
		1236	const_iv (NOTFOUND)
		1237	const_iv (PAGE_NOTFOUND)
		1238	const_iv (REP_DUPMASTER)
		1239	const_iv (REP_HANDLE_DEAD)
		1240	const_iv (REP_HOLDELECTION)
		1241	const_iv (REP_IGNORE)
		1242	const_iv (REP_ISPERM)
		1243	const_iv (REP_JOIN_FAILURE)
		1244	const_iv (REP_LOCKOUT)
		1245	const_iv (REP_NEWMASTER)
		1246	const_iv (REP_NEWSITE)
		1247	const_iv (REP_NOTPERM)
		1248	const_iv (REP_UNAVAIL)
		1249	const_iv (RUNRECOVERY)
		1250	const_iv (SECONDARY_BAD)
		1251	const_iv (VERIFY_BAD)
		1252	const_iv (VERSION_MISMATCH)
		1253
		1254	const_iv (VERB_DEADLOCK)
		1255	const_iv (VERB_RECOVERY)
		1256	const_iv (VERB_REGISTER)
		1257	const_iv (VERB_REPLICATION)
		1258	const_iv (VERB_WAITSFOR)
		1259
		1260	const_iv (VERSION_MAJOR)
		1261	const_iv (VERSION_MINOR)
		1262	const_iv (VERSION_PATCH)
		1263	#if DB_VERSION_MINOR >= 5
		1264	const_iv (MULTIVERSION)
		1265	const_iv (TXN_SNAPSHOT)
		1266	#endif
		1267	#if DB_VERSION_MINOR >= 6
		1268	const_iv (PREV_DUP)
		1269	const_iv (PRIORITY_UNCHANGED)
		1270	const_iv (PRIORITY_VERY_LOW)
		1271	const_iv (PRIORITY_LOW)
		1272	const_iv (PRIORITY_DEFAULT)
		1273	const_iv (PRIORITY_HIGH)
		1274	const_iv (PRIORITY_VERY_HIGH)
		1275	#endif
		1276	#if DB_VERSION_MINOR >= 7
		1277	const_iv (LOG_DIRECT)
		1278	const_iv (LOG_DSYNC)
		1279	const_iv (LOG_AUTO_REMOVE)
		1280	const_iv (LOG_IN_MEMORY)
		1281	const_iv (LOG_ZERO)
		1282	#else
		1283	const_iv (DIRECT_LOG)
		1284	const_iv (DSYNC_LOG)
		1285	const_iv (LOG_AUTOREMOVE)
		1286	const_iv (LOG_INMEMORY)
		1287	#endif
827	};	1288	};
828		1289
829	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1290	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
830	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1291	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
831		1292
832	create_pipe ();	1293	{
		1294	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1295	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1296
		1297	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1298	}
		1299
		1300	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1301
		1302	create_respipe ();
		1303
833	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1304	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1305	patch_errno ();
834	}	1306	}
835		1307
836	void	1308	void
837	max_poll_reqs (int nreqs)	1309	max_poll_reqs (int nreqs)
838	PROTOTYPE: $	1310	PROTOTYPE: $
…		…
957		1429
958	int	1430	int
959	nthreads ()	1431	nthreads ()
960	PROTOTYPE:	1432	PROTOTYPE:
961	CODE:	1433	CODE:
962	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1434	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
963	RETVAL = started;	1435	RETVAL = started;
964	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1436	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
965	OUTPUT:	1437	OUTPUT:
966	RETVAL	1438	RETVAL
967		1439
968	void	1440	void
969	set_sync_prepare (SV *cb)	1441	set_sync_prepare (SV *cb)
970	PROTOTYPE: &	1442	PROTOTYPE: &
971	CODE:	1443	CODE:
972	SvREFCNT_dec (prepare_cb);	1444	SvREFCNT_dec (prepare_cb);
973	prepare_cb = newSVsv (cb);	1445	prepare_cb = newSVsv (cb);
		1446
		1447	char *
		1448	strerror (int errorno = errno)
		1449	PROTOTYPE: ;$
		1450	CODE:
		1451	RETVAL = db_strerror (errorno);
		1452	OUTPUT:
		1453	RETVAL
		1454
		1455	void _on_next_submit (SV *cb)
		1456	CODE:
		1457	SvREFCNT_dec (on_next_submit);
		1458	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
974		1459
975	DB_ENV *	1460	DB_ENV *
976	db_env_create (U32 env_flags = 0)	1461	db_env_create (U32 env_flags = 0)
977	CODE:	1462	CODE:
978	{	1463	{
979	errno = db_env_create (&RETVAL, env_flags);	1464	errno = db_env_create (&RETVAL, env_flags);
980	if (errno)	1465	if (errno)
981	croak ("db_env_create: %s", db_strerror (errno));	1466	croak ("db_env_create: %s", db_strerror (errno));
		1467
		1468	if (0)
		1469	{
		1470	RETVAL->set_errcall (RETVAL, debug_errcall);
		1471	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1472	}
982	}	1473	}
983	OUTPUT:	1474	OUTPUT:
984	RETVAL	1475	RETVAL
985		1476
986	void	1477	void
987	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1478	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1479	PREINIT:
		1480	CALLBACK
988	CODE:	1481	CODE:
989	{	1482	{
990	dREQ (REQ_ENV_OPEN);	1483	dREQ (REQ_ENV_OPEN);
991	req->env = env;	1484	req->env = env;
992	req->uint1 = open_flags | DB_THREAD;	1485	req->uint1 = open_flags | DB_THREAD;
…		…
994	req->buf1 = strdup_ornull (db_home);	1487	req->buf1 = strdup_ornull (db_home);
995	REQ_SEND;	1488	REQ_SEND;
996	}	1489	}
997		1490
998	void	1491	void
999	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1492	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1493	PREINIT:
		1494	CALLBACK
1000	CODE:	1495	CODE:
1001	{	1496	{
1002	dREQ (REQ_ENV_CLOSE);	1497	dREQ (REQ_ENV_CLOSE);
1003	req->env = env;	1498	req->env = env;
1004	req->uint1 = flags;	1499	req->uint1 = flags;
1005	REQ_SEND;	1500	REQ_SEND;
		1501	ptr_nuke (ST (0));
		1502	}
		1503
		1504	void
		1505	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1506	PREINIT:
		1507	CALLBACK
		1508	CODE:
		1509	{
		1510	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1511	req->env = env;
		1512	req->uint1 = kbyte;
		1513	req->int1 = min;
		1514	req->uint2 = flags;
		1515	REQ_SEND;
		1516	}
		1517
		1518	void
		1519	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1520	PREINIT:
		1521	CALLBACK
		1522	CODE:
		1523	{
		1524	dREQ (REQ_ENV_LOCK_DETECT);
		1525	req->env = env;
		1526	req->uint1 = flags;
		1527	req->uint2 = atype;
		1528	/* req->int2 = 0; dummy */
		1529	REQ_SEND;
		1530	}
		1531
		1532	void
		1533	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1534	PREINIT:
		1535	CALLBACK
		1536	CODE:
		1537	{
		1538	dREQ (REQ_ENV_MEMP_SYNC);
		1539	req->env = env;
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
		1544	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1545	PREINIT:
		1546	CALLBACK
		1547	CODE:
		1548	{
		1549	dREQ (REQ_ENV_MEMP_TRICKLE);
		1550	req->env = env;
		1551	req->int1 = percent;
		1552	REQ_SEND;
		1553	}
		1554
		1555	void
		1556	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1557	PREINIT:
		1558	CALLBACK
		1559	CODE:
		1560	{
		1561	dREQ (REQ_ENV_DBREMOVE);
		1562	req->env = env;
		1563	req->buf1 = strdup_ornull (file);
		1564	req->buf2 = strdup_ornull (database);
		1565	req->uint1 = flags;
		1566	REQ_SEND;
		1567	}
		1568
		1569	void
		1570	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)
		1571	PREINIT:
		1572	CALLBACK
		1573	CODE:
		1574	{
		1575	dREQ (REQ_ENV_DBRENAME);
		1576	req->env = env;
		1577	req->buf1 = strdup_ornull (file);
		1578	req->buf2 = strdup_ornull (database);
		1579	req->buf3 = strdup_ornull (newname);
		1580	req->uint1 = flags;
		1581	REQ_SEND;
1006	}	1582	}
1007		1583
1008	DB *	1584	DB *
1009	db_create (DB_ENV *env = 0, U32 flags = 0)	1585	db_create (DB_ENV *env = 0, U32 flags = 0)
1010	CODE:	1586	CODE:
1011	{	1587	{
1012	errno = db_create (&RETVAL, env, flags);	1588	errno = db_create (&RETVAL, env, flags);
1013	if (errno)	1589	if (errno)
1014	croak ("db_env_create: %s", db_strerror (errno));	1590	croak ("db_create: %s", db_strerror (errno));
		1591
		1592	if (RETVAL)
		1593	RETVAL->app_private = (void *)newSVsv (ST (0));
1015	}	1594	}
1016	OUTPUT:	1595	OUTPUT:
1017	RETVAL	1596	RETVAL
1018		1597
1019	void	1598	void
1020	db_open (DB *db, DB_TXN *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1599	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1600	PREINIT:
		1601	CALLBACK
1021	CODE:	1602	CODE:
1022	{	1603	{
1023	dREQ (REQ_DB_OPEN);	1604	dREQ (REQ_DB_OPEN);
1024	req->db = db;	1605	req->db = db;
1025	req->txn = txnid;	1606	req->txn = txnid;
…		…
1030	req->int2 = mode;	1611	req->int2 = mode;
1031	REQ_SEND;	1612	REQ_SEND;
1032	}	1613	}
1033		1614
1034	void	1615	void
1035	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1616	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1617	PREINIT:
		1618	CALLBACK
1036	CODE:	1619	CODE:
1037	{	1620	{
1038	dREQ (REQ_DB_CLOSE);	1621	dREQ (REQ_DB_CLOSE);
1039	req->db = db;	1622	req->db = db;
1040	req->uint1 = flags;	1623	req->uint1 = flags;
		1624	req->sv1 = (SV *)db->app_private;
1041	REQ_SEND;	1625	REQ_SEND;
		1626	ptr_nuke (ST (0));
1042	}	1627	}
1043		1628
1044	void	1629	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)	1630	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)
		1631	PREINIT:
		1632	CALLBACK
1046	CODE:	1633	CODE:
1047	{	1634	{
1048	dREQ (REQ_DB_COMPACT);	1635	dREQ (REQ_DB_COMPACT);
1049	req->db = db;	1636	req->db = db;
1050	req->txn = txn;	1637	req->txn = txn;
1051	set_dbt (&req->dbt1, start);	1638	sv_to_dbt (&req->dbt1, start);
1052	set_dbt (&req->dbt2, stop);	1639	sv_to_dbt (&req->dbt2, stop);
1053	req->uint1 = flags;	1640	req->uint1 = flags;
1054	REQ_SEND;	1641	REQ_SEND;
1055	}	1642	}
1056		1643
1057	void	1644	void
1058	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1645	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1646	PREINIT:
		1647	CALLBACK
1059	CODE:	1648	CODE:
1060	{	1649	{
1061	dREQ (REQ_DB_SYNC);	1650	dREQ (REQ_DB_SYNC);
1062	req->db = db;	1651	req->db = db;
1063	req->uint1 = flags;	1652	req->uint1 = flags;
1064	REQ_SEND;	1653	REQ_SEND;
1065	}	1654	}
1066		1655
1067	void	1656	void
		1657	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1658	PREINIT:
		1659	CALLBACK
		1660	CODE:
		1661	{
		1662	dREQ (REQ_DB_SYNC);
		1663	req->db = db;
		1664	req->buf1 = strdup (file);
		1665	req->uint1 = flags;
		1666	REQ_SEND;
		1667	}
		1668
		1669	void
		1670	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1671	PREINIT:
		1672	CALLBACK
		1673	CODE:
		1674	{
		1675	dREQ (REQ_DB_KEY_RANGE);
		1676	req->db = db;
		1677	req->txn = txn;
		1678	sv_to_dbt (&req->dbt1, key);
		1679	req->uint1 = flags;
		1680	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1681	REQ_SEND;
		1682	}
		1683
		1684	void
1068	db_put (DB *db, DB_TXN *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1685	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1686	PREINIT:
		1687	CALLBACK
1069	CODE:	1688	CODE:
1070	{	1689	{
1071	dREQ (REQ_DB_PUT);	1690	dREQ (REQ_DB_PUT);
1072	req->db = db;	1691	req->db = db;
1073	req->txn = 0;	1692	req->txn = txn;
1074	set_dbt (&req->dbt1, key);	1693	sv_to_dbt (&req->dbt1, key);
1075	set_dbt (&req->dbt2, data);	1694	sv_to_dbt (&req->dbt2, data);
1076	req->uint1 = flags;	1695	req->uint1 = flags;
1077	REQ_SEND;	1696	REQ_SEND;
1078	}	1697	}
1079		1698
		1699	#if DB_VERSION_MINOR >= 6
		1700
		1701	void
		1702	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1703	PREINIT:
		1704	CALLBACK
		1705	CODE:
		1706	{
		1707	dREQ (REQ_DB_EXISTS);
		1708	req->db = db;
		1709	req->txn = txn;
		1710	req->uint1 = flags;
		1711	sv_to_dbt (&req->dbt1, key);
		1712	REQ_SEND;
		1713	}
		1714
		1715	#endif
		1716
		1717	void
		1718	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1719	PREINIT:
		1720	CALLBACK
		1721	CODE:
		1722	if (SvREADONLY (data))
		1723	croak ("can't modify read-only data scalar in db_get");
		1724	{
		1725	dREQ (REQ_DB_GET);
		1726	req->db = db;
		1727	req->txn = txn;
		1728	req->uint1 = flags;
		1729	sv_to_dbt (&req->dbt1, key);
		1730	req->dbt3.flags = DB_DBT_MALLOC;
		1731	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
		1736	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1737	PREINIT:
		1738	CALLBACK
		1739	CODE:
		1740	if (SvREADONLY (data))
		1741	croak ("can't modify read-only data scalar in db_pget");
		1742	{
		1743	dREQ (REQ_DB_PGET);
		1744	req->db = db;
		1745	req->txn = txn;
		1746	req->uint1 = flags;
		1747	sv_to_dbt (&req->dbt1, key);
		1748	sv_to_dbt (&req->dbt2, pkey);
		1749	req->dbt3.flags = DB_DBT_MALLOC;
		1750	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1751	REQ_SEND;
		1752	}
		1753
		1754	void
		1755	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1756	PREINIT:
		1757	CALLBACK
		1758	CODE:
		1759	{
		1760	dREQ (REQ_DB_DEL);
		1761	req->db = db;
		1762	req->txn = txn;
		1763	req->uint1 = flags;
		1764	sv_to_dbt (&req->dbt1, key);
		1765	REQ_SEND;
		1766	}
		1767
		1768	void
		1769	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1770	PREINIT:
		1771	CALLBACK
		1772	CODE:
		1773	{
		1774	dREQ (REQ_TXN_COMMIT);
		1775	req->txn = txn;
		1776	req->uint1 = flags;
		1777	REQ_SEND;
		1778	ptr_nuke (ST (0));
		1779	}
		1780
		1781	void
		1782	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1783	PREINIT:
		1784	CALLBACK
		1785	CODE:
		1786	{
		1787	dREQ (REQ_TXN_ABORT);
		1788	req->txn = txn;
		1789	REQ_SEND;
		1790	ptr_nuke (ST (0));
		1791	}
		1792
		1793	void
		1794	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1795	PREINIT:
		1796	CALLBACK
		1797	CODE:
		1798	{
		1799	dREQ (REQ_TXN_FINISH);
		1800	req->txn = txn;
		1801	req->uint1 = flags;
		1802	REQ_SEND;
		1803	ptr_nuke (ST (0));
		1804	}
		1805
		1806	void
		1807	db_c_close (DBC *dbc, SV *callback = 0)
		1808	PREINIT:
		1809	CALLBACK
		1810	CODE:
		1811	{
		1812	dREQ (REQ_C_CLOSE);
		1813	req->dbc = dbc;
		1814	REQ_SEND;
		1815	ptr_nuke (ST (0));
		1816	}
		1817
		1818	void
		1819	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1820	PREINIT:
		1821	CALLBACK
		1822	CODE:
		1823	{
		1824	dREQ (REQ_C_COUNT);
		1825	req->dbc = dbc;
		1826	req->sv1 = SvREFCNT_inc (count);
		1827	REQ_SEND;
		1828	}
		1829
		1830	void
		1831	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1832	PREINIT:
		1833	CALLBACK
		1834	CODE:
		1835	{
		1836	dREQ (REQ_C_PUT);
		1837	req->dbc = dbc;
		1838	sv_to_dbt (&req->dbt1, key);
		1839	sv_to_dbt (&req->dbt2, data);
		1840	req->uint1 = flags;
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
		1845	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1846	PREINIT:
		1847	CALLBACK
		1848	CODE:
		1849	{
		1850	dREQ (REQ_C_GET);
		1851	req->dbc = dbc;
		1852	req->uint1 = flags;
		1853	if ((flags & DB_SET) == DB_SET
		1854	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1855	sv_to_dbt (&req->dbt1, key);
		1856	else
		1857	req->dbt1.flags = DB_DBT_MALLOC;
		1858
		1859	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1860
		1861	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1862	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1863	sv_to_dbt (&req->dbt3, data);
		1864	else
		1865	req->dbt3.flags = DB_DBT_MALLOC;
		1866
		1867	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1873	PREINIT:
		1874	CALLBACK
		1875	CODE:
		1876	{
		1877	dREQ (REQ_C_PGET);
		1878	req->dbc = dbc;
		1879	req->uint1 = flags;
		1880	if ((flags & DB_SET) == DB_SET
		1881	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1882	sv_to_dbt (&req->dbt1, key);
		1883	else
		1884	req->dbt1.flags = DB_DBT_MALLOC;
		1885
		1886	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1887
		1888	req->dbt2.flags = DB_DBT_MALLOC;
		1889	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1890
		1891	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1892	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1893	sv_to_dbt (&req->dbt3, data);
		1894	else
		1895	req->dbt3.flags = DB_DBT_MALLOC;
		1896
		1897	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1898	REQ_SEND;
		1899	}
		1900
		1901	void
		1902	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1903	PREINIT:
		1904	CALLBACK
		1905	CODE:
		1906	{
		1907	dREQ (REQ_C_DEL);
		1908	req->dbc = dbc;
		1909	req->uint1 = flags;
		1910	REQ_SEND;
		1911	}
		1912
		1913
		1914	void
		1915	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1916	PREINIT:
		1917	CALLBACK
		1918	CODE:
		1919	{
		1920	dREQ (REQ_SEQ_OPEN);
		1921	req->seq = seq;
		1922	req->txn = txnid;
		1923	req->uint1 = flags | DB_THREAD;
		1924	sv_to_dbt (&req->dbt1, key);
		1925	REQ_SEND;
		1926	}
		1927
		1928	void
		1929	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1930	PREINIT:
		1931	CALLBACK
		1932	CODE:
		1933	{
		1934	dREQ (REQ_SEQ_CLOSE);
		1935	req->seq = seq;
		1936	req->uint1 = flags;
		1937	REQ_SEND;
		1938	ptr_nuke (ST (0));
		1939	}
		1940
		1941	void
		1942	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1943	PREINIT:
		1944	CALLBACK
		1945	CODE:
		1946	{
		1947	dREQ (REQ_SEQ_GET);
		1948	req->seq = seq;
		1949	req->txn = txnid;
		1950	req->int1 = delta;
		1951	req->uint1 = flags;
		1952	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1953	REQ_SEND;
		1954	}
		1955
		1956	void
		1957	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1958	PREINIT:
		1959	CALLBACK
		1960	CODE:
		1961	{
		1962	dREQ (REQ_SEQ_REMOVE);
		1963	req->seq = seq;
		1964	req->txn = txnid;
		1965	req->uint1 = flags;
		1966	REQ_SEND;
		1967	}
		1968
1080		1969
1081	MODULE = BDB PACKAGE = BDB::Env	1970	MODULE = BDB PACKAGE = BDB::Env
1082		1971
		1972	void
		1973	DESTROY (DB_ENV_ornuked *env)
		1974	CODE:
		1975	if (env)
		1976	env->close (env, 0);
		1977
		1978	int set_data_dir (DB_ENV *env, const char *dir)
		1979	CODE:
		1980	RETVAL = env->set_data_dir (env, dir);
		1981	OUTPUT:
		1982	RETVAL
		1983
		1984	int set_tmp_dir (DB_ENV *env, const char *dir)
		1985	CODE:
		1986	RETVAL = env->set_tmp_dir (env, dir);
		1987	OUTPUT:
		1988	RETVAL
		1989
		1990	int set_lg_dir (DB_ENV *env, const char *dir)
		1991	CODE:
		1992	RETVAL = env->set_lg_dir (env, dir);
		1993	OUTPUT:
		1994	RETVAL
		1995
		1996	int set_shm_key (DB_ENV *env, long shm_key)
		1997	CODE:
		1998	RETVAL = env->set_shm_key (env, shm_key);
		1999	OUTPUT:
		2000	RETVAL
		2001
1083	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2002	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1084	CODE:	2003	CODE:
1085	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	2004	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1086	OUTPUT:	2005	OUTPUT:
1087	RETVAL	2006	RETVAL
1088		2007
1089	int set_flags (DB_ENV *env, U32 flags, int onoff)	2008	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1090	CODE:	2009	CODE:
1091	RETVAL = env->set_flags (env, flags, onoff);	2010	RETVAL = env->set_flags (env, flags, onoff);
1092	OUTPUT:	2011	OUTPUT:
1093	RETVAL	2012	RETVAL
1094		2013
		2014	#if DB_VERSION_MINOR >= 7
		2015
		2016	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2017	CODE:
		2018	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2019	OUTPUT:
		2020	RETVAL
		2021
		2022	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2023	CODE:
		2024	RETVAL = env->log_set_config (env, flags, onoff);
		2025	OUTPUT:
		2026	RETVAL
		2027
		2028	#endif
		2029
		2030
		2031	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2032	CODE:
		2033	env->set_errfile (env, errfile);
		2034
		2035	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2036	CODE:
		2037	env->set_msgfile (env, msgfile);
		2038
		2039	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2040	CODE:
		2041	RETVAL = env->set_verbose (env, which, onoff);
		2042	OUTPUT:
		2043	RETVAL
		2044
1095	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2045	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1096	CODE:	2046	CODE:
1097	RETVAL = env->set_encrypt (env, password, flags);	2047	RETVAL = env->set_encrypt (env, password, flags);
1098	OUTPUT:	2048	OUTPUT:
1099	RETVAL	2049	RETVAL
1100		2050
1101	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2051	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1102	CODE:	2052	CODE:
1103	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2053	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1104	OUTPUT:	2054	OUTPUT:
1105	RETVAL	2055	RETVAL
1106		2056
		2057	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2058	CODE:
		2059	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2060	OUTPUT:
		2061	RETVAL
		2062
		2063	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2064	CODE:
		2065	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2066	OUTPUT:
		2067	RETVAL
		2068
		2069	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2070	CODE:
		2071	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2072	OUTPUT:
		2073	RETVAL
		2074
		2075	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2076	CODE:
		2077	RETVAL = env->set_lk_detect (env, detect);
		2078	OUTPUT:
		2079	RETVAL
		2080
		2081	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2082	CODE:
		2083	RETVAL = env->set_lk_max_lockers (env, max);
		2084	OUTPUT:
		2085	RETVAL
		2086
		2087	int set_lk_max_locks (DB_ENV *env, U32 max)
		2088	CODE:
		2089	RETVAL = env->set_lk_max_locks (env, max);
		2090	OUTPUT:
		2091	RETVAL
		2092
		2093	int set_lk_max_objects (DB_ENV *env, U32 max)
		2094	CODE:
		2095	RETVAL = env->set_lk_max_objects (env, max);
		2096	OUTPUT:
		2097	RETVAL
		2098
		2099	int set_lg_bsize (DB_ENV *env, U32 max)
		2100	CODE:
		2101	RETVAL = env->set_lg_bsize (env, max);
		2102	OUTPUT:
		2103	RETVAL
		2104
		2105	int set_lg_max (DB_ENV *env, U32 max)
		2106	CODE:
		2107	RETVAL = env->set_lg_max (env, max);
		2108	OUTPUT:
		2109	RETVAL
		2110
		2111	int mutex_set_max (DB_ENV *env, U32 max)
		2112	CODE:
		2113	RETVAL = env->mutex_set_max (env, max);
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int mutex_set_increment (DB_ENV *env, U32 increment)
		2118	CODE:
		2119	RETVAL = env->mutex_set_increment (env, increment);
		2120	OUTPUT:
		2121	RETVAL
		2122
		2123	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2124	CODE:
		2125	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2126	OUTPUT:
		2127	RETVAL
		2128
		2129	int mutex_set_align (DB_ENV *env, U32 align)
		2130	CODE:
		2131	RETVAL = env->mutex_set_align (env, align);
		2132	OUTPUT:
		2133	RETVAL
		2134
		2135	DB_TXN *
		2136	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2137	CODE:
		2138	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2139	if (errno)
		2140	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2141	OUTPUT:
		2142	RETVAL
		2143
		2144	#if DB_VERSION_MINOR >= 5
		2145
		2146	DB_TXN *
		2147	cdsgroup_begin (DB_ENV *env)
		2148	CODE:
		2149	errno = env->cdsgroup_begin (env, &RETVAL);
		2150	if (errno)
		2151	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2152	OUTPUT:
		2153	RETVAL
		2154
		2155	#endif
1107		2156
1108	MODULE = BDB PACKAGE = BDB::Db	2157	MODULE = BDB PACKAGE = BDB::Db
1109		2158
		2159	void
		2160	DESTROY (DB_ornuked *db)
		2161	CODE:
		2162	if (db)
		2163	{
		2164	SV *env = (SV *)db->app_private;
		2165	db->close (db, 0);
		2166	SvREFCNT_dec (env);
		2167	}
		2168
1110	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2169	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1111	CODE:	2170	CODE:
1112	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2171	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1113	OUTPUT:	2172	OUTPUT:
1114	RETVAL	2173	RETVAL
1115		2174
1116	int set_flags (DB *db, U32 flags);	2175	int set_flags (DB *db, U32 flags)
1117	CODE:	2176	CODE:
1118	RETVAL = db->set_flags (db, flags);	2177	RETVAL = db->set_flags (db, flags);
1119	OUTPUT:	2178	OUTPUT:
1120	RETVAL	2179	RETVAL
1121		2180
…		…
1129	CODE:	2188	CODE:
1130	RETVAL = db->set_lorder (db, lorder);	2189	RETVAL = db->set_lorder (db, lorder);
1131	OUTPUT:	2190	OUTPUT:
1132	RETVAL	2191	RETVAL
1133		2192
1134
1135	int set_bt_minkey (DB *db, U32 minkey)	2193	int set_bt_minkey (DB *db, U32 minkey)
1136	CODE:	2194	CODE:
1137	RETVAL = db->set_bt_minkey (db, minkey);	2195	RETVAL = db->set_bt_minkey (db, minkey);
1138	OUTPUT:	2196	OUTPUT:
1139	RETVAL	2197	RETVAL
1140		2198
1141	int set_re_delim(DB *db, int delim);	2199	int set_re_delim (DB *db, int delim)
1142	CODE:	2200	CODE:
1143	RETVAL = db->set_re_delim (db, delim);	2201	RETVAL = db->set_re_delim (db, delim);
1144	OUTPUT:	2202	OUTPUT:
1145	RETVAL	2203	RETVAL
1146		2204
…		…
1178	CODE:	2236	CODE:
1179	RETVAL = db->set_q_extentsize (db, extentsize);	2237	RETVAL = db->set_q_extentsize (db, extentsize);
1180	OUTPUT:	2238	OUTPUT:
1181	RETVAL	2239	RETVAL
1182		2240
		2241	DBC *
		2242	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2243	CODE:
		2244	errno = db->cursor (db, txn, &RETVAL, flags);
		2245	if (errno)
		2246	croak ("DB->cursor: %s", db_strerror (errno));
		2247	OUTPUT:
		2248	RETVAL
1183		2249
		2250	DB_SEQUENCE *
		2251	sequence (DB *db, U32 flags = 0)
		2252	CODE:
		2253	{
		2254	errno = db_sequence_create (&RETVAL, db, flags);
		2255	if (errno)
		2256	croak ("db_sequence_create: %s", db_strerror (errno));
		2257	}
		2258	OUTPUT:
		2259	RETVAL
		2260
		2261
		2262	MODULE = BDB PACKAGE = BDB::Txn
		2263
		2264	void
		2265	DESTROY (DB_TXN_ornuked *txn)
		2266	CODE:
		2267	if (txn)
		2268	txn->abort (txn);
		2269
		2270	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2271	CODE:
		2272	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2273	OUTPUT:
		2274	RETVAL
		2275
		2276	int failed (DB_TXN *txn)
		2277	CODE:
		2278	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2279	OUTPUT:
		2280	RETVAL
		2281
		2282
		2283	MODULE = BDB PACKAGE = BDB::Cursor
		2284
		2285	void
		2286	DESTROY (DBC_ornuked *dbc)
		2287	CODE:
		2288	if (dbc)
		2289	dbc->c_close (dbc);
		2290
		2291	#if DB_VERSION_MINOR >= 6
		2292
		2293	int set_priority (DBC *dbc, int priority)
		2294	CODE:
		2295	dbc->set_priority (dbc, priority);
		2296
		2297	#endif
		2298
		2299	MODULE = BDB PACKAGE = BDB::Sequence
		2300
		2301	void
		2302	DESTROY (DB_SEQUENCE_ornuked *seq)
		2303	CODE:
		2304	if (seq)
		2305	seq->close (seq, 0);
		2306
		2307	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2308	CODE:
		2309	RETVAL = seq->initial_value (seq, value);
		2310	OUTPUT:
		2311	RETVAL
		2312
		2313	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2314	CODE:
		2315	RETVAL = seq->set_cachesize (seq, size);
		2316	OUTPUT:
		2317	RETVAL
		2318
		2319	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2320	CODE:
		2321	RETVAL = seq->set_flags (seq, flags);
		2322	OUTPUT:
		2323	RETVAL
		2324
		2325	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2326	CODE:
		2327	RETVAL = seq->set_range (seq, min, max);
		2328	OUTPUT:
		2329	RETVAL
		2330
		2331

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