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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 1.45 by root, Wed Jul 9 21:08:29 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	case REQ_DB_EXISTS:
		814	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		815	break;
		816
		817	case REQ_DB_GET:
		818	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		819	break;
		820
		821	case REQ_DB_PGET:
		822	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		823	break;
		824
		825	case REQ_DB_DEL:
		826	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		827	break;
		828
		829	case REQ_DB_KEY_RANGE:
		830	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		831	break;
		832
		833	case REQ_TXN_COMMIT:
		834	req->result = req->txn->commit (req->txn, req->uint1);
		835	break;
		836
		837	case REQ_TXN_ABORT:
		838	req->result = req->txn->abort (req->txn);
		839	break;
		840
		841	case REQ_TXN_FINISH:
		842	if (req->txn->flags & TXN_DEADLOCK)
		843	{
		844	req->result = req->txn->abort (req->txn);
		845	if (!req->result)
		846	req->result = DB_LOCK_DEADLOCK;
		847	}
		848	else
		849	req->result = req->txn->commit (req->txn, req->uint1);
		850	break;
		851
		852	case REQ_C_CLOSE:
		853	req->result = req->dbc->c_close (req->dbc);
		854	break;
		855
		856	case REQ_C_COUNT:
		857	{
		858	db_recno_t recno;
		859	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		860	req->uv1 = recno;
		861	}
		862	break;
		863
		864	case REQ_C_PUT:
		865	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		866	break;
		867
		868	case REQ_C_GET:
		869	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		870	break;
		871
		872	case REQ_C_PGET:
		873	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		874	break;
		875
		876	case REQ_C_DEL:
		877	req->result = req->dbc->c_del (req->dbc, req->uint1);
		878	break;
		879
		880	case REQ_SEQ_OPEN:
		881	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		882	break;
		883
		884	case REQ_SEQ_CLOSE:
		885	req->result = req->seq->close (req->seq, req->uint1);
		886	break;
		887
		888	case REQ_SEQ_GET:
		889	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		890	break;
		891
		892	case REQ_SEQ_REMOVE:
		893	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		894	break;
		895
615	default:	896	default:
616	req->result = ENOSYS;	897	req->result = ENOSYS;
617	break;	898	break;
618	}	899	}
619		900
		901	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		902	req->txn->flags |= TXN_DEADLOCK;
		903
620	LOCK (reslock);	904	X_LOCK (reslock);
621		905
622	++npending;	906	++npending;
623		907
624	if (!reqq_push (&res_queue, req))	908	if (!reqq_push (&res_queue, req))
625	/* write a dummy byte to the pipe so fh becomes ready */	909	/* write a dummy byte to the pipe so fh becomes ready */
626	write (respipe [1], &respipe, 1);	910	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
627		911
628	self->req = 0;	912	self->req = 0;
629	worker_clear (self);	913	worker_clear (self);
630		914
631	UNLOCK (reslock);	915	X_UNLOCK (reslock);
632	}	916	}
633		917
634	quit:	918	quit:
635	LOCK (wrklock);	919	X_LOCK (wrklock);
636	worker_free (self);	920	worker_free (self);
637	UNLOCK (wrklock);	921	X_UNLOCK (wrklock);
638		922
639	return 0;	923	return 0;
640	}	924	}
641		925
642	/*****************************************************************************/	926	/*****************************************************************************/
643		927
644	static void atfork_prepare (void)	928	static void atfork_prepare (void)
645	{	929	{
646	LOCK (wrklock);	930	X_LOCK (wrklock);
647	LOCK (reqlock);	931	X_LOCK (reqlock);
648	LOCK (reslock);	932	X_LOCK (reslock);
649	}	933	}
650		934
651	static void atfork_parent (void)	935	static void atfork_parent (void)
652	{	936	{
653	UNLOCK (reslock);	937	X_UNLOCK (reslock);
654	UNLOCK (reqlock);	938	X_UNLOCK (reqlock);
655	UNLOCK (wrklock);	939	X_UNLOCK (wrklock);
656	}	940	}
657		941
658	static void atfork_child (void)	942	static void atfork_child (void)
659	{	943	{
660	aio_req prv;	944	bdb_req prv;
661		945
662	while (prv = reqq_shift (&req_queue))	946	while (prv = reqq_shift (&req_queue))
663	req_free (prv);	947	req_free (prv);
664		948
665	while (prv = reqq_shift (&res_queue))	949	while (prv = reqq_shift (&res_queue))
…		…
680	idle = 0;	964	idle = 0;
681	nreqs = 0;	965	nreqs = 0;
682	nready = 0;	966	nready = 0;
683	npending = 0;	967	npending = 0;
684		968
685	close (respipe [0]);
686	close (respipe [1]);
687	create_pipe ();	969	create_respipe ();
688		970
689	atfork_parent ();	971	atfork_parent ();
690	}	972	}
691		973
692	#define dREQ(reqtype) \	974	#define dREQ(reqtype) \
693	aio_req req; \	975	bdb_req req; \
694	int req_pri = next_pri; \	976	int req_pri = next_pri; \
695	next_pri = DEFAULT_PRI + PRI_BIAS; \	977	next_pri = DEFAULT_PRI + PRI_BIAS; \
696	\	978	\
697	if (SvOK (callback) && !SvROK (callback)) \	979	if (callback && SvOK (callback)) \
698	croak ("callback must be undef or of reference type"); \	980	croak ("callback has illegal type or extra arguments"); \
699	\	981	\
700	Newz (0, req, 1, aio_cb); \	982	Newz (0, req, 1, bdb_cb); \
701	if (!req) \	983	if (!req) \
702	croak ("out of memory during aio_req allocation"); \	984	croak ("out of memory during bdb_req allocation"); \
703	\	985	\
704	req->callback = newSVsv (callback); \	986	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
705	req->type = (reqtype); \	987	req->type = (reqtype); \
706	req->pri = req_pri	988	req->pri = req_pri
707		989
708	#define REQ_SEND \	990	#define REQ_SEND \
709	req_send (req)	991	req_send (req)
710		992
711	#define SvPTR(var, arg, type, class) \	993	#define SvPTR(var, arg, type, class, nullok) \
712	if (!SvOK (arg)) \	994	if (!SvOK (arg)) \
		995	{ \
		996	if (nullok != 1) \
		997	croak (# var " must be a " # class " object, not undef"); \
		998	\
713	(var) = 0; \	999	(var) = 0; \
		1000	} \
714	else if (sv_derived_from ((arg), # class)) \	1001	else if (sv_derived_from ((arg), # class)) \
715	{ \	1002	{ \
716	IV tmp = SvIV ((SV*) SvRV (arg)); \	1003	IV tmp = SvIV ((SV*) SvRV (arg)); \
717	(var) = INT2PTR (type, tmp); \	1004	(var) = INT2PTR (type, tmp); \
		1005	if (!var && nullok != 2) \
		1006	croak (# var " is not a valid " # class " object anymore"); \
718	} \	1007	} \
719	else \	1008	else \
720	Perl_croak (# var " is not of type " # class)	1009	croak (# var " is not of type " # class);
721		1010
722	inline void	1011	static void
723	set_dbt (DBT *dbt, SV *sv)	1012	ptr_nuke (SV *sv)
724	{	1013	{
725	STRLEN len;	1014	assert (SvROK (sv));
726	char *data = SvPVbyte (sv, len);	1015	sv_setiv (SvRV (sv), 0);
727
728	dbt->data = malloc (len);
729	memcpy (dbt->data, data, len);
730	dbt->size = len;
731	}	1016	}
732		1017
		1018	static int
		1019	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1020	{
		1021	if (*mg->mg_ptr == '!') // should always be the case
		1022	if (-30999 <= errno && errno <= -30800)
		1023	{
		1024	sv_setnv (sv, (NV)errno);
		1025	sv_setpv (sv, db_strerror (errno));
		1026	SvNOK_on (sv); /* what a wonderful hack! */
		1027	// ^^^ copied from perl sources
		1028	return 0;
		1029	}
		1030
		1031	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1032	}
		1033
		1034	static MGVTBL vtbl_errno;
		1035
		1036	// this wonderful hack :( patches perl's $! variable to support our errno values
		1037	static void
		1038	patch_errno (void)
		1039	{
		1040	SV *sv;
		1041	MAGIC *mg;
		1042
		1043	if (!(sv = get_sv ("!", 1)))
		1044	return;
		1045
		1046	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1047	return;
		1048
		1049	if (mg->mg_virtual != &PL_vtbl_sv)
		1050	return;
		1051
		1052	vtbl_errno = PL_vtbl_sv;
		1053	vtbl_errno.svt_get = errno_get;
		1054	mg->mg_virtual = &vtbl_errno;
		1055	}
		1056
		1057	#if __GNUC__ >= 4
		1058	# define noinline __attribute__ ((noinline))
		1059	#else
		1060	# define noinline
		1061	#endif
		1062
		1063	static noinline SV *
		1064	pop_callback (I32 *ritems, SV *sv)
		1065	{
		1066	if (SvROK (sv))
		1067	{
		1068	HV *st;
		1069	GV *gvp;
		1070	CV *cv;
		1071	const char *name;
		1072
		1073	/* forgive me */
		1074	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1075	&& (st = SvSTASH (SvRV (sv)))
		1076	&& (name = HvNAME_get (st))
		1077	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1078	return 0;
		1079
		1080	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1081	{
		1082	--*ritems;
		1083	return (SV *)cv;
		1084	}
		1085	}
		1086
		1087	return 0;
		1088	}
		1089
		1090	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1091
733	MODULE = BDB PACKAGE = BDB	1092	MODULE = BDB PACKAGE = BDB
734		1093
735	PROTOTYPES: ENABLE	1094	PROTOTYPES: ENABLE
736		1095
737	BOOT:	1096	BOOT:
…		…
752	const_iv (INIT_TXN)	1111	const_iv (INIT_TXN)
753	const_iv (RECOVER)	1112	const_iv (RECOVER)
754	const_iv (INIT_TXN)	1113	const_iv (INIT_TXN)
755	const_iv (RECOVER_FATAL)	1114	const_iv (RECOVER_FATAL)
756	const_iv (CREATE)	1115	const_iv (CREATE)
		1116	const_iv (RDONLY)
757	const_iv (USE_ENVIRON)	1117	const_iv (USE_ENVIRON)
758	const_iv (USE_ENVIRON_ROOT)	1118	const_iv (USE_ENVIRON_ROOT)
759	const_iv (LOCKDOWN)	1119	const_iv (LOCKDOWN)
760	const_iv (PRIVATE)	1120	const_iv (PRIVATE)
761	const_iv (REGISTER)	1121	const_iv (REGISTER)
762	const_iv (SYSTEM_MEM)	1122	const_iv (SYSTEM_MEM)
763	const_iv (AUTO_COMMIT)	1123	const_iv (AUTO_COMMIT)
764	const_iv (CDB_ALLDB)	1124	const_iv (CDB_ALLDB)
765	const_iv (DIRECT_DB)	1125	const_iv (DIRECT_DB)
766	const_iv (DIRECT_LOG)
767	const_iv (DSYNC_DB)	1126	const_iv (DSYNC_DB)
768	const_iv (DSYNC_LOG)
769	const_iv (LOG_AUTOREMOVE)
770	const_iv (LOG_INMEMORY)
771	const_iv (NOLOCKING)	1127	const_iv (NOLOCKING)
772	const_iv (MULTIVERSION)
773	const_iv (NOMMAP)	1128	const_iv (NOMMAP)
774	const_iv (NOPANIC)	1129	const_iv (NOPANIC)
775	const_iv (OVERWRITE)	1130	const_iv (OVERWRITE)
776	const_iv (PANIC_ENVIRONMENT)	1131	const_iv (PANIC_ENVIRONMENT)
777	const_iv (REGION_INIT)	1132	const_iv (REGION_INIT)
778	const_iv (TIME_NOTGRANTED)	1133	const_iv (TIME_NOTGRANTED)
779	const_iv (TXN_NOSYNC)	1134	const_iv (TXN_NOSYNC)
780	const_iv (TXN_SNAPSHOT)	1135	const_iv (TXN_NOT_DURABLE)
781	const_iv (TXN_WRITE_NOSYNC)	1136	const_iv (TXN_WRITE_NOSYNC)
		1137	const_iv (WRITECURSOR)
782	const_iv (YIELDCPU)	1138	const_iv (YIELDCPU)
783	const_iv (ENCRYPT_AES)	1139	const_iv (ENCRYPT_AES)
784	const_iv (XA_CREATE)	1140	const_iv (XA_CREATE)
785	const_iv (BTREE)	1141	const_iv (BTREE)
786	const_iv (HASH)	1142	const_iv (HASH)
787	const_iv (QUEUE)	1143	const_iv (QUEUE)
788	const_iv (RECNO)	1144	const_iv (RECNO)
789	const_iv (UNKNOWN)	1145	const_iv (UNKNOWN)
790	const_iv (EXCL)	1146	const_iv (EXCL)
		1147	const_iv (READ_COMMITTED)
791	const_iv (READ_UNCOMMITTED)	1148	const_iv (READ_UNCOMMITTED)
792	const_iv (TRUNCATE)	1149	const_iv (TRUNCATE)
793	const_iv (NOSYNC)	1150	const_iv (NOSYNC)
794	const_iv (CHKSUM)	1151	const_iv (CHKSUM)
795	const_iv (ENCRYPT)	1152	const_iv (ENCRYPT)
796	const_iv (TXN_NOT_DURABLE)
797	const_iv (DUP)	1153	const_iv (DUP)
798	const_iv (DUPSORT)	1154	const_iv (DUPSORT)
799	const_iv (RECNUM)	1155	const_iv (RECNUM)
800	const_iv (RENUMBER)	1156	const_iv (RENUMBER)
801	const_iv (REVSPLITOFF)	1157	const_iv (REVSPLITOFF)
802	const_iv (INORDER)	1158	const_iv (INORDER)
803	const_iv (CONSUME)	1159	const_iv (CONSUME)
804	const_iv (CONSUME_WAIT)	1160	const_iv (CONSUME_WAIT)
		1161	const_iv (GET_BOTH)
		1162	const_iv (GET_BOTH_RANGE)
		1163	//const_iv (SET_RECNO)
		1164	//const_iv (MULTIPLE)
805	const_iv (SNAPSHOT)	1165	const_iv (SNAPSHOT)
806	const_iv (JOIN_ITEM)	1166	const_iv (JOIN_ITEM)
		1167	const_iv (JOIN_NOSORT)
807	const_iv (RMW)	1168	const_iv (RMW)
808		1169
809	const_iv (NOTFOUND)	1170	const_iv (NOTFOUND)
810	const_iv (KEYEMPTY)	1171	const_iv (KEYEMPTY)
811	const_iv (LOCK_DEADLOCK)	1172	const_iv (LOCK_DEADLOCK)
812	const_iv (LOCK_NOTGRANTED)	1173	const_iv (LOCK_NOTGRANTED)
813	const_iv (RUNRECOVERY)	1174	const_iv (RUNRECOVERY)
814	const_iv (OLD_VERSION)	1175	const_iv (OLD_VERSION)
815	const_iv (REP_HANDLE_DEAD)	1176	const_iv (REP_HANDLE_DEAD)
816	const_iv (REP_LOCKOUT)	1177	const_iv (REP_LOCKOUT)
		1178	const_iv (SECONDARY_BAD)
817		1179
818	const_iv (FREE_SPACE)	1180	const_iv (FREE_SPACE)
819	const_iv (FREELIST_ONLY)	1181	const_iv (FREELIST_ONLY)
820		1182
821	const_iv (APPEND)	1183	const_iv (APPEND)
822	const_iv (NODUPDATA)	1184	const_iv (NODUPDATA)
823	const_iv (NOOVERWRITE)	1185	const_iv (NOOVERWRITE)
824		1186
		1187	const_iv (TXN_NOWAIT)
		1188	const_iv (TXN_SYNC)
		1189
825	const_iv (SET_LOCK_TIMEOUT)	1190	const_iv (SET_LOCK_TIMEOUT)
826	const_iv (SET_TXN_TIMEOUT)	1191	const_iv (SET_TXN_TIMEOUT)
		1192
		1193	const_iv (FIRST)
		1194	const_iv (NEXT)
		1195	const_iv (NEXT_DUP)
		1196	const_iv (NEXT_NODUP)
		1197	const_iv (PREV)
		1198	const_iv (PREV_NODUP)
		1199	const_iv (SET)
		1200	const_iv (SET_RANGE)
		1201	const_iv (LAST)
		1202	const_iv (BEFORE)
		1203	const_iv (AFTER)
		1204	const_iv (CURRENT)
		1205	const_iv (KEYFIRST)
		1206	const_iv (KEYLAST)
		1207	const_iv (NODUPDATA)
		1208
		1209	const_iv (FORCE)
		1210
		1211	const_iv (LOCK_DEFAULT)
		1212	const_iv (LOCK_EXPIRE)
		1213	const_iv (LOCK_MAXLOCKS)
		1214	const_iv (LOCK_MAXWRITE)
		1215	const_iv (LOCK_MINLOCKS)
		1216	const_iv (LOCK_MINWRITE)
		1217	const_iv (LOCK_OLDEST)
		1218	const_iv (LOCK_RANDOM)
		1219	const_iv (LOCK_YOUNGEST)
		1220
		1221	const_iv (SEQ_DEC)
		1222	const_iv (SEQ_INC)
		1223	const_iv (SEQ_WRAP)
		1224
		1225	const_iv (BUFFER_SMALL)
		1226	const_iv (DONOTINDEX)
		1227	const_iv (KEYEMPTY )
		1228	const_iv (KEYEXIST )
		1229	const_iv (LOCK_DEADLOCK)
		1230	const_iv (LOCK_NOTGRANTED)
		1231	const_iv (LOG_BUFFER_FULL)
		1232	const_iv (NOSERVER)
		1233	const_iv (NOSERVER_HOME)
		1234	const_iv (NOSERVER_ID)
		1235	const_iv (NOTFOUND)
		1236	const_iv (PAGE_NOTFOUND)
		1237	const_iv (REP_DUPMASTER)
		1238	const_iv (REP_HANDLE_DEAD)
		1239	const_iv (REP_HOLDELECTION)
		1240	const_iv (REP_IGNORE)
		1241	const_iv (REP_ISPERM)
		1242	const_iv (REP_JOIN_FAILURE)
		1243	const_iv (REP_LOCKOUT)
		1244	const_iv (REP_NEWMASTER)
		1245	const_iv (REP_NEWSITE)
		1246	const_iv (REP_NOTPERM)
		1247	const_iv (REP_UNAVAIL)
		1248	const_iv (RUNRECOVERY)
		1249	const_iv (SECONDARY_BAD)
		1250	const_iv (VERIFY_BAD)
		1251	const_iv (VERSION_MISMATCH)
		1252
		1253	const_iv (VERB_DEADLOCK)
		1254	const_iv (VERB_RECOVERY)
		1255	const_iv (VERB_REGISTER)
		1256	const_iv (VERB_REPLICATION)
		1257	const_iv (VERB_WAITSFOR)
		1258
		1259	const_iv (VERSION_MAJOR)
		1260	const_iv (VERSION_MINOR)
		1261	const_iv (VERSION_PATCH)
		1262	#if DB_VERSION_MINOR >= 5
		1263	const_iv (MULTIVERSION)
		1264	const_iv (TXN_SNAPSHOT)
		1265	#endif
		1266	#if DB_VERSION_MINOR >= 6
		1267	const_iv (PREV_DUP)
		1268	const_iv (PRIORITY_UNCHANGED)
		1269	const_iv (PRIORITY_VERY_LOW)
		1270	const_iv (PRIORITY_LOW)
		1271	const_iv (PRIORITY_DEFAULT)
		1272	const_iv (PRIORITY_HIGH)
		1273	const_iv (PRIORITY_VERY_HIGH)
		1274	#endif
		1275	#if DB_VERSION_MINOR >= 7
		1276	const_iv (LOG_DIRECT)
		1277	const_iv (LOG_DSYNC)
		1278	const_iv (LOG_AUTO_REMOVE)
		1279	const_iv (LOG_IN_MEMORY)
		1280	const_iv (LOG_ZERO)
		1281	#else
		1282	const_iv (DIRECT_LOG)
		1283	const_iv (DSYNC_LOG)
		1284	const_iv (LOG_AUTOREMOVE)
		1285	const_iv (LOG_INMEMORY)
		1286	#endif
827	};	1287	};
828		1288
829	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1289	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
830	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1290	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
831		1291
832	create_pipe ();	1292	{
		1293	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1294	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1295
		1296	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1297	}
		1298
		1299	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1300
		1301	create_respipe ();
		1302
833	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1303	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1304	patch_errno ();
834	}	1305	}
835		1306
836	void	1307	void
837	max_poll_reqs (int nreqs)	1308	max_poll_reqs (int nreqs)
838	PROTOTYPE: $	1309	PROTOTYPE: $
…		…
957		1428
958	int	1429	int
959	nthreads ()	1430	nthreads ()
960	PROTOTYPE:	1431	PROTOTYPE:
961	CODE:	1432	CODE:
962	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1433	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
963	RETVAL = started;	1434	RETVAL = started;
964	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1435	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
965	OUTPUT:	1436	OUTPUT:
966	RETVAL	1437	RETVAL
967		1438
968	void	1439	void
969	set_sync_prepare (SV *cb)	1440	set_sync_prepare (SV *cb)
970	PROTOTYPE: &	1441	PROTOTYPE: &
971	CODE:	1442	CODE:
972	SvREFCNT_dec (prepare_cb);	1443	SvREFCNT_dec (prepare_cb);
973	prepare_cb = newSVsv (cb);	1444	prepare_cb = newSVsv (cb);
		1445
		1446	char *
		1447	strerror (int errorno = errno)
		1448	PROTOTYPE: ;$
		1449	CODE:
		1450	RETVAL = db_strerror (errorno);
		1451	OUTPUT:
		1452	RETVAL
		1453
		1454	void _on_next_submit (SV *cb)
		1455	CODE:
		1456	SvREFCNT_dec (on_next_submit);
		1457	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
974		1458
975	DB_ENV *	1459	DB_ENV *
976	db_env_create (U32 env_flags = 0)	1460	db_env_create (U32 env_flags = 0)
977	CODE:	1461	CODE:
978	{	1462	{
979	errno = db_env_create (&RETVAL, env_flags);	1463	errno = db_env_create (&RETVAL, env_flags);
980	if (errno)	1464	if (errno)
981	croak ("db_env_create: %s", db_strerror (errno));	1465	croak ("db_env_create: %s", db_strerror (errno));
		1466
		1467	if (0)
		1468	{
		1469	RETVAL->set_errcall (RETVAL, debug_errcall);
		1470	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1471	}
982	}	1472	}
983	OUTPUT:	1473	OUTPUT:
984	RETVAL	1474	RETVAL
985		1475
986	void	1476	void
987	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1477	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1478	PREINIT:
		1479	CALLBACK
988	CODE:	1480	CODE:
989	{	1481	{
990	dREQ (REQ_ENV_OPEN);	1482	dREQ (REQ_ENV_OPEN);
991	req->env = env;	1483	req->env = env;
992	req->uint1 = open_flags | DB_THREAD;	1484	req->uint1 = open_flags | DB_THREAD;
…		…
994	req->buf1 = strdup_ornull (db_home);	1486	req->buf1 = strdup_ornull (db_home);
995	REQ_SEND;	1487	REQ_SEND;
996	}	1488	}
997		1489
998	void	1490	void
999	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1491	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1492	PREINIT:
		1493	CALLBACK
1000	CODE:	1494	CODE:
1001	{	1495	{
1002	dREQ (REQ_ENV_CLOSE);	1496	dREQ (REQ_ENV_CLOSE);
1003	req->env = env;	1497	req->env = env;
1004	req->uint1 = flags;	1498	req->uint1 = flags;
1005	REQ_SEND;	1499	REQ_SEND;
		1500	ptr_nuke (ST (0));
		1501	}
		1502
		1503	void
		1504	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1505	PREINIT:
		1506	CALLBACK
		1507	CODE:
		1508	{
		1509	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1510	req->env = env;
		1511	req->uint1 = kbyte;
		1512	req->int1 = min;
		1513	req->uint2 = flags;
		1514	REQ_SEND;
		1515	}
		1516
		1517	void
		1518	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1519	PREINIT:
		1520	CALLBACK
		1521	CODE:
		1522	{
		1523	dREQ (REQ_ENV_LOCK_DETECT);
		1524	req->env = env;
		1525	req->uint1 = flags;
		1526	req->uint2 = atype;
		1527	/* req->int2 = 0; dummy */
		1528	REQ_SEND;
		1529	}
		1530
		1531	void
		1532	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1533	PREINIT:
		1534	CALLBACK
		1535	CODE:
		1536	{
		1537	dREQ (REQ_ENV_MEMP_SYNC);
		1538	req->env = env;
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
		1543	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1544	PREINIT:
		1545	CALLBACK
		1546	CODE:
		1547	{
		1548	dREQ (REQ_ENV_MEMP_TRICKLE);
		1549	req->env = env;
		1550	req->int1 = percent;
		1551	REQ_SEND;
		1552	}
		1553
		1554	void
		1555	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1556	PREINIT:
		1557	CALLBACK
		1558	CODE:
		1559	{
		1560	dREQ (REQ_ENV_DBREMOVE);
		1561	req->env = env;
		1562	req->buf1 = strdup_ornull (file);
		1563	req->buf2 = strdup_ornull (database);
		1564	req->uint1 = flags;
		1565	REQ_SEND;
		1566	}
		1567
		1568	void
		1569	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)
		1570	PREINIT:
		1571	CALLBACK
		1572	CODE:
		1573	{
		1574	dREQ (REQ_ENV_DBRENAME);
		1575	req->env = env;
		1576	req->buf1 = strdup_ornull (file);
		1577	req->buf2 = strdup_ornull (database);
		1578	req->buf3 = strdup_ornull (newname);
		1579	req->uint1 = flags;
		1580	REQ_SEND;
1006	}	1581	}
1007		1582
1008	DB *	1583	DB *
1009	db_create (DB_ENV *env = 0, U32 flags = 0)	1584	db_create (DB_ENV *env = 0, U32 flags = 0)
1010	CODE:	1585	CODE:
1011	{	1586	{
1012	errno = db_create (&RETVAL, env, flags);	1587	errno = db_create (&RETVAL, env, flags);
1013	if (errno)	1588	if (errno)
1014	croak ("db_env_create: %s", db_strerror (errno));	1589	croak ("db_create: %s", db_strerror (errno));
		1590
		1591	if (RETVAL)
		1592	RETVAL->app_private = (void *)newSVsv (ST (0));
1015	}	1593	}
1016	OUTPUT:	1594	OUTPUT:
1017	RETVAL	1595	RETVAL
1018		1596
1019	void	1597	void
1020	db_open (DB *db, DB_TXN *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1598	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1599	PREINIT:
		1600	CALLBACK
1021	CODE:	1601	CODE:
1022	{	1602	{
1023	dREQ (REQ_DB_OPEN);	1603	dREQ (REQ_DB_OPEN);
1024	req->db = db;	1604	req->db = db;
1025	req->txn = txnid;	1605	req->txn = txnid;
…		…
1030	req->int2 = mode;	1610	req->int2 = mode;
1031	REQ_SEND;	1611	REQ_SEND;
1032	}	1612	}
1033		1613
1034	void	1614	void
1035	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1615	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1616	PREINIT:
		1617	CALLBACK
1036	CODE:	1618	CODE:
1037	{	1619	{
1038	dREQ (REQ_DB_CLOSE);	1620	dREQ (REQ_DB_CLOSE);
1039	req->db = db;	1621	req->db = db;
1040	req->uint1 = flags;	1622	req->uint1 = flags;
		1623	req->sv1 = (SV *)db->app_private;
1041	REQ_SEND;	1624	REQ_SEND;
		1625	ptr_nuke (ST (0));
1042	}	1626	}
1043		1627
1044	void	1628	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)	1629	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)
		1630	PREINIT:
		1631	CALLBACK
1046	CODE:	1632	CODE:
1047	{	1633	{
1048	dREQ (REQ_DB_COMPACT);	1634	dREQ (REQ_DB_COMPACT);
1049	req->db = db;	1635	req->db = db;
1050	req->txn = txn;	1636	req->txn = txn;
1051	set_dbt (&req->dbt1, start);	1637	sv_to_dbt (&req->dbt1, start);
1052	set_dbt (&req->dbt2, stop);	1638	sv_to_dbt (&req->dbt2, stop);
1053	req->uint1 = flags;	1639	req->uint1 = flags;
1054	REQ_SEND;	1640	REQ_SEND;
1055	}	1641	}
1056		1642
1057	void	1643	void
1058	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1644	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1645	PREINIT:
		1646	CALLBACK
1059	CODE:	1647	CODE:
1060	{	1648	{
1061	dREQ (REQ_DB_SYNC);	1649	dREQ (REQ_DB_SYNC);
1062	req->db = db;	1650	req->db = db;
1063	req->uint1 = flags;	1651	req->uint1 = flags;
1064	REQ_SEND;	1652	REQ_SEND;
1065	}	1653	}
1066		1654
1067	void	1655	void
		1656	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1657	PREINIT:
		1658	CALLBACK
		1659	CODE:
		1660	{
		1661	dREQ (REQ_DB_SYNC);
		1662	req->db = db;
		1663	req->buf1 = strdup (file);
		1664	req->uint1 = flags;
		1665	REQ_SEND;
		1666	}
		1667
		1668	void
		1669	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1670	PREINIT:
		1671	CALLBACK
		1672	CODE:
		1673	{
		1674	dREQ (REQ_DB_KEY_RANGE);
		1675	req->db = db;
		1676	req->txn = txn;
		1677	sv_to_dbt (&req->dbt1, key);
		1678	req->uint1 = flags;
		1679	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1680	REQ_SEND;
		1681	}
		1682
		1683	void
1068	db_put (DB *db, DB_TXN *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1684	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1685	PREINIT:
		1686	CALLBACK
1069	CODE:	1687	CODE:
1070	{	1688	{
1071	dREQ (REQ_DB_PUT);	1689	dREQ (REQ_DB_PUT);
1072	req->db = db;	1690	req->db = db;
1073	req->txn = 0;	1691	req->txn = txn;
1074	set_dbt (&req->dbt1, key);	1692	sv_to_dbt (&req->dbt1, key);
1075	set_dbt (&req->dbt2, data);	1693	sv_to_dbt (&req->dbt2, data);
1076	req->uint1 = flags;	1694	req->uint1 = flags;
1077	REQ_SEND;	1695	REQ_SEND;
1078	}	1696	}
1079		1697
		1698	void
		1699	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1700	PREINIT:
		1701	CALLBACK
		1702	CODE:
		1703	{
		1704	dREQ (REQ_DB_EXISTS);
		1705	req->db = db;
		1706	req->txn = txn;
		1707	req->uint1 = flags;
		1708	sv_to_dbt (&req->dbt1, key);
		1709	REQ_SEND;
		1710	}
		1711
		1712	void
		1713	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1714	PREINIT:
		1715	CALLBACK
		1716	CODE:
		1717	if (SvREADONLY (data))
		1718	croak ("can't modify read-only data scalar in db_get");
		1719	{
		1720	dREQ (REQ_DB_GET);
		1721	req->db = db;
		1722	req->txn = txn;
		1723	req->uint1 = flags;
		1724	sv_to_dbt (&req->dbt1, key);
		1725	req->dbt3.flags = DB_DBT_MALLOC;
		1726	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1732	PREINIT:
		1733	CALLBACK
		1734	CODE:
		1735	if (SvREADONLY (data))
		1736	croak ("can't modify read-only data scalar in db_pget");
		1737	{
		1738	dREQ (REQ_DB_PGET);
		1739	req->db = db;
		1740	req->txn = txn;
		1741	req->uint1 = flags;
		1742	sv_to_dbt (&req->dbt1, key);
		1743	sv_to_dbt (&req->dbt2, pkey);
		1744	req->dbt3.flags = DB_DBT_MALLOC;
		1745	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1746	REQ_SEND;
		1747	}
		1748
		1749	void
		1750	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1751	PREINIT:
		1752	CALLBACK
		1753	CODE:
		1754	{
		1755	dREQ (REQ_DB_DEL);
		1756	req->db = db;
		1757	req->txn = txn;
		1758	req->uint1 = flags;
		1759	sv_to_dbt (&req->dbt1, key);
		1760	REQ_SEND;
		1761	}
		1762
		1763	void
		1764	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1765	PREINIT:
		1766	CALLBACK
		1767	CODE:
		1768	{
		1769	dREQ (REQ_TXN_COMMIT);
		1770	req->txn = txn;
		1771	req->uint1 = flags;
		1772	REQ_SEND;
		1773	ptr_nuke (ST (0));
		1774	}
		1775
		1776	void
		1777	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1778	PREINIT:
		1779	CALLBACK
		1780	CODE:
		1781	{
		1782	dREQ (REQ_TXN_ABORT);
		1783	req->txn = txn;
		1784	REQ_SEND;
		1785	ptr_nuke (ST (0));
		1786	}
		1787
		1788	void
		1789	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1790	PREINIT:
		1791	CALLBACK
		1792	CODE:
		1793	{
		1794	dREQ (REQ_TXN_FINISH);
		1795	req->txn = txn;
		1796	req->uint1 = flags;
		1797	REQ_SEND;
		1798	ptr_nuke (ST (0));
		1799	}
		1800
		1801	void
		1802	db_c_close (DBC *dbc, SV *callback = 0)
		1803	PREINIT:
		1804	CALLBACK
		1805	CODE:
		1806	{
		1807	dREQ (REQ_C_CLOSE);
		1808	req->dbc = dbc;
		1809	REQ_SEND;
		1810	ptr_nuke (ST (0));
		1811	}
		1812
		1813	void
		1814	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1815	PREINIT:
		1816	CALLBACK
		1817	CODE:
		1818	{
		1819	dREQ (REQ_C_COUNT);
		1820	req->dbc = dbc;
		1821	req->sv1 = SvREFCNT_inc (count);
		1822	REQ_SEND;
		1823	}
		1824
		1825	void
		1826	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1827	PREINIT:
		1828	CALLBACK
		1829	CODE:
		1830	{
		1831	dREQ (REQ_C_PUT);
		1832	req->dbc = dbc;
		1833	sv_to_dbt (&req->dbt1, key);
		1834	sv_to_dbt (&req->dbt2, data);
		1835	req->uint1 = flags;
		1836	REQ_SEND;
		1837	}
		1838
		1839	void
		1840	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1841	PREINIT:
		1842	CALLBACK
		1843	CODE:
		1844	{
		1845	dREQ (REQ_C_GET);
		1846	req->dbc = dbc;
		1847	req->uint1 = flags;
		1848	if ((flags & DB_SET) == DB_SET
		1849	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1850	sv_to_dbt (&req->dbt1, key);
		1851	else
		1852	req->dbt1.flags = DB_DBT_MALLOC;
		1853
		1854	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1855
		1856	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1857	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1858	sv_to_dbt (&req->dbt3, data);
		1859	else
		1860	req->dbt3.flags = DB_DBT_MALLOC;
		1861
		1862	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1863	REQ_SEND;
		1864	}
		1865
		1866	void
		1867	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1868	PREINIT:
		1869	CALLBACK
		1870	CODE:
		1871	{
		1872	dREQ (REQ_C_PGET);
		1873	req->dbc = dbc;
		1874	req->uint1 = flags;
		1875	if ((flags & DB_SET) == DB_SET
		1876	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1877	sv_to_dbt (&req->dbt1, key);
		1878	else
		1879	req->dbt1.flags = DB_DBT_MALLOC;
		1880
		1881	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1882
		1883	req->dbt2.flags = DB_DBT_MALLOC;
		1884	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1885
		1886	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1887	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1888	sv_to_dbt (&req->dbt3, data);
		1889	else
		1890	req->dbt3.flags = DB_DBT_MALLOC;
		1891
		1892	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1893	REQ_SEND;
		1894	}
		1895
		1896	void
		1897	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1898	PREINIT:
		1899	CALLBACK
		1900	CODE:
		1901	{
		1902	dREQ (REQ_C_DEL);
		1903	req->dbc = dbc;
		1904	req->uint1 = flags;
		1905	REQ_SEND;
		1906	}
		1907
		1908
		1909	void
		1910	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1911	PREINIT:
		1912	CALLBACK
		1913	CODE:
		1914	{
		1915	dREQ (REQ_SEQ_OPEN);
		1916	req->seq = seq;
		1917	req->txn = txnid;
		1918	req->uint1 = flags | DB_THREAD;
		1919	sv_to_dbt (&req->dbt1, key);
		1920	REQ_SEND;
		1921	}
		1922
		1923	void
		1924	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1925	PREINIT:
		1926	CALLBACK
		1927	CODE:
		1928	{
		1929	dREQ (REQ_SEQ_CLOSE);
		1930	req->seq = seq;
		1931	req->uint1 = flags;
		1932	REQ_SEND;
		1933	ptr_nuke (ST (0));
		1934	}
		1935
		1936	void
		1937	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1938	PREINIT:
		1939	CALLBACK
		1940	CODE:
		1941	{
		1942	dREQ (REQ_SEQ_GET);
		1943	req->seq = seq;
		1944	req->txn = txnid;
		1945	req->int1 = delta;
		1946	req->uint1 = flags;
		1947	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1948	REQ_SEND;
		1949	}
		1950
		1951	void
		1952	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1953	PREINIT:
		1954	CALLBACK
		1955	CODE:
		1956	{
		1957	dREQ (REQ_SEQ_REMOVE);
		1958	req->seq = seq;
		1959	req->txn = txnid;
		1960	req->uint1 = flags;
		1961	REQ_SEND;
		1962	}
		1963
1080		1964
1081	MODULE = BDB PACKAGE = BDB::Env	1965	MODULE = BDB PACKAGE = BDB::Env
1082		1966
		1967	void
		1968	DESTROY (DB_ENV_ornuked *env)
		1969	CODE:
		1970	if (env)
		1971	env->close (env, 0);
		1972
		1973	int set_data_dir (DB_ENV *env, const char *dir)
		1974	CODE:
		1975	RETVAL = env->set_data_dir (env, dir);
		1976	OUTPUT:
		1977	RETVAL
		1978
		1979	int set_tmp_dir (DB_ENV *env, const char *dir)
		1980	CODE:
		1981	RETVAL = env->set_tmp_dir (env, dir);
		1982	OUTPUT:
		1983	RETVAL
		1984
		1985	int set_lg_dir (DB_ENV *env, const char *dir)
		1986	CODE:
		1987	RETVAL = env->set_lg_dir (env, dir);
		1988	OUTPUT:
		1989	RETVAL
		1990
		1991	int set_shm_key (DB_ENV *env, long shm_key)
		1992	CODE:
		1993	RETVAL = env->set_shm_key (env, shm_key);
		1994	OUTPUT:
		1995	RETVAL
		1996
1083	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1997	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1084	CODE:	1998	CODE:
1085	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	1999	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1086	OUTPUT:	2000	OUTPUT:
1087	RETVAL	2001	RETVAL
1088		2002
1089	int set_flags (DB_ENV *env, U32 flags, int onoff)	2003	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1090	CODE:	2004	CODE:
1091	RETVAL = env->set_flags (env, flags, onoff);	2005	RETVAL = env->set_flags (env, flags, onoff);
1092	OUTPUT:	2006	OUTPUT:
1093	RETVAL	2007	RETVAL
1094		2008
		2009	#if DB_VERSION_MINOR >= 7
		2010
		2011	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2012	CODE:
		2013	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2014	OUTPUT:
		2015	RETVAL
		2016
		2017	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2018	CODE:
		2019	RETVAL = env->log_set_config (env, flags, onoff);
		2020	OUTPUT:
		2021	RETVAL
		2022
		2023	#endif
		2024
		2025
		2026	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2027	CODE:
		2028	env->set_errfile (env, errfile);
		2029
		2030	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2031	CODE:
		2032	env->set_msgfile (env, msgfile);
		2033
		2034	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2035	CODE:
		2036	RETVAL = env->set_verbose (env, which, onoff);
		2037	OUTPUT:
		2038	RETVAL
		2039
1095	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2040	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1096	CODE:	2041	CODE:
1097	RETVAL = env->set_encrypt (env, password, flags);	2042	RETVAL = env->set_encrypt (env, password, flags);
1098	OUTPUT:	2043	OUTPUT:
1099	RETVAL	2044	RETVAL
1100		2045
1101	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2046	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1102	CODE:	2047	CODE:
1103	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2048	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1104	OUTPUT:	2049	OUTPUT:
1105	RETVAL	2050	RETVAL
1106		2051
		2052	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2053	CODE:
		2054	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2055	OUTPUT:
		2056	RETVAL
		2057
		2058	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2059	CODE:
		2060	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2061	OUTPUT:
		2062	RETVAL
		2063
		2064	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2065	CODE:
		2066	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2067	OUTPUT:
		2068	RETVAL
		2069
		2070	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2071	CODE:
		2072	RETVAL = env->set_lk_detect (env, detect);
		2073	OUTPUT:
		2074	RETVAL
		2075
		2076	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2077	CODE:
		2078	RETVAL = env->set_lk_max_lockers (env, max);
		2079	OUTPUT:
		2080	RETVAL
		2081
		2082	int set_lk_max_locks (DB_ENV *env, U32 max)
		2083	CODE:
		2084	RETVAL = env->set_lk_max_locks (env, max);
		2085	OUTPUT:
		2086	RETVAL
		2087
		2088	int set_lk_max_objects (DB_ENV *env, U32 max)
		2089	CODE:
		2090	RETVAL = env->set_lk_max_objects (env, max);
		2091	OUTPUT:
		2092	RETVAL
		2093
		2094	int set_lg_bsize (DB_ENV *env, U32 max)
		2095	CODE:
		2096	RETVAL = env->set_lg_bsize (env, max);
		2097	OUTPUT:
		2098	RETVAL
		2099
		2100	int set_lg_max (DB_ENV *env, U32 max)
		2101	CODE:
		2102	RETVAL = env->set_lg_max (env, max);
		2103	OUTPUT:
		2104	RETVAL
		2105
		2106	int mutex_set_max (DB_ENV *env, U32 max)
		2107	CODE:
		2108	RETVAL = env->mutex_set_max (env, max);
		2109	OUTPUT:
		2110	RETVAL
		2111
		2112	int mutex_set_increment (DB_ENV *env, U32 increment)
		2113	CODE:
		2114	RETVAL = env->mutex_set_increment (env, increment);
		2115	OUTPUT:
		2116	RETVAL
		2117
		2118	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2119	CODE:
		2120	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2121	OUTPUT:
		2122	RETVAL
		2123
		2124	int mutex_set_align (DB_ENV *env, U32 align)
		2125	CODE:
		2126	RETVAL = env->mutex_set_align (env, align);
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	DB_TXN *
		2131	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2132	CODE:
		2133	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2134	if (errno)
		2135	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2136	OUTPUT:
		2137	RETVAL
		2138
		2139	DB_TXN *
		2140	cdsgroup_begin (DB_ENV *env)
		2141	CODE:
		2142	errno = env->cdsgroup_begin (env, &RETVAL);
		2143	if (errno)
		2144	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2145	OUTPUT:
		2146	RETVAL
1107		2147
1108	MODULE = BDB PACKAGE = BDB::Db	2148	MODULE = BDB PACKAGE = BDB::Db
1109		2149
		2150	void
		2151	DESTROY (DB_ornuked *db)
		2152	CODE:
		2153	if (db)
		2154	{
		2155	SV *env = (SV *)db->app_private;
		2156	db->close (db, 0);
		2157	SvREFCNT_dec (env);
		2158	}
		2159
1110	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2160	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
1111	CODE:	2161	CODE:
1112	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2162	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1113	OUTPUT:	2163	OUTPUT:
1114	RETVAL	2164	RETVAL
1115		2165
1116	int set_flags (DB *db, U32 flags);	2166	int set_flags (DB *db, U32 flags)
1117	CODE:	2167	CODE:
1118	RETVAL = db->set_flags (db, flags);	2168	RETVAL = db->set_flags (db, flags);
1119	OUTPUT:	2169	OUTPUT:
1120	RETVAL	2170	RETVAL
1121		2171
…		…
1129	CODE:	2179	CODE:
1130	RETVAL = db->set_lorder (db, lorder);	2180	RETVAL = db->set_lorder (db, lorder);
1131	OUTPUT:	2181	OUTPUT:
1132	RETVAL	2182	RETVAL
1133		2183
1134
1135	int set_bt_minkey (DB *db, U32 minkey)	2184	int set_bt_minkey (DB *db, U32 minkey)
1136	CODE:	2185	CODE:
1137	RETVAL = db->set_bt_minkey (db, minkey);	2186	RETVAL = db->set_bt_minkey (db, minkey);
1138	OUTPUT:	2187	OUTPUT:
1139	RETVAL	2188	RETVAL
1140		2189
1141	int set_re_delim(DB *db, int delim);	2190	int set_re_delim (DB *db, int delim)
1142	CODE:	2191	CODE:
1143	RETVAL = db->set_re_delim (db, delim);	2192	RETVAL = db->set_re_delim (db, delim);
1144	OUTPUT:	2193	OUTPUT:
1145	RETVAL	2194	RETVAL
1146		2195
…		…
1178	CODE:	2227	CODE:
1179	RETVAL = db->set_q_extentsize (db, extentsize);	2228	RETVAL = db->set_q_extentsize (db, extentsize);
1180	OUTPUT:	2229	OUTPUT:
1181	RETVAL	2230	RETVAL
1182		2231
		2232	DBC *
		2233	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2234	CODE:
		2235	errno = db->cursor (db, txn, &RETVAL, flags);
		2236	if (errno)
		2237	croak ("DB->cursor: %s", db_strerror (errno));
		2238	OUTPUT:
		2239	RETVAL
1183		2240
		2241	DB_SEQUENCE *
		2242	sequence (DB *db, U32 flags = 0)
		2243	CODE:
		2244	{
		2245	errno = db_sequence_create (&RETVAL, db, flags);
		2246	if (errno)
		2247	croak ("db_sequence_create: %s", db_strerror (errno));
		2248	}
		2249	OUTPUT:
		2250	RETVAL
		2251
		2252
		2253	MODULE = BDB PACKAGE = BDB::Txn
		2254
		2255	void
		2256	DESTROY (DB_TXN_ornuked *txn)
		2257	CODE:
		2258	if (txn)
		2259	txn->abort (txn);
		2260
		2261	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2262	CODE:
		2263	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2264	OUTPUT:
		2265	RETVAL
		2266
		2267	int failed (DB_TXN *txn)
		2268	CODE:
		2269	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2270	OUTPUT:
		2271	RETVAL
		2272
		2273
		2274	MODULE = BDB PACKAGE = BDB::Cursor
		2275
		2276	void
		2277	DESTROY (DBC_ornuked *dbc)
		2278	CODE:
		2279	if (dbc)
		2280	dbc->c_close (dbc);
		2281
		2282	#if DB_VERSION_MINOR >= 6
		2283
		2284	int set_priority (DBC *dbc, int priority)
		2285	CODE:
		2286	dbc->set_priority (dbc, priority);
		2287
		2288	#endif
		2289
		2290	MODULE = BDB PACKAGE = BDB::Sequence
		2291
		2292	void
		2293	DESTROY (DB_SEQUENCE_ornuked *seq)
		2294	CODE:
		2295	if (seq)
		2296	seq->close (seq, 0);
		2297
		2298	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2299	CODE:
		2300	RETVAL = seq->initial_value (seq, value);
		2301	OUTPUT:
		2302	RETVAL
		2303
		2304	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2305	CODE:
		2306	RETVAL = seq->set_cachesize (seq, size);
		2307	OUTPUT:
		2308	RETVAL
		2309
		2310	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2311	CODE:
		2312	RETVAL = seq->set_flags (seq, flags);
		2313	OUTPUT:
		2314	RETVAL
		2315
		2316	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2317	CODE:
		2318	RETVAL = seq->set_range (seq, min, max);
		2319	OUTPUT:
		2320	RETVAL
		2321
		2322

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