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Comparing BDB/BDB.xs (file contents):
Revision 1.2 by root, Mon Feb 5 20:21:38 2007 UTC vs.
Revision 1.43 by root, Wed Jul 9 12:55:57 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 */	66	static char *
		67	get_bdb_filename (SV *sv)
		68	{
		69	if (!SvOK (sv))
		70	return 0;
46		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 *
		109	strdup_ornull (const char *s)
		110	{
		111	return s ? strdup (s) : 0;
		112	}
		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
47	enum	139	enum {
48	{
49	REQ_QUIT,	140	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	141	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	142	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		143	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		144	REQ_DB_PUT, 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,
52	};	148	};
53		149
54	typedef struct aio_cb	150	typedef struct bdb_cb
55	{	151	{
56	struct aio_cb *volatile next;	152	struct bdb_cb *volatile next;
57	SV *callback;	153	SV *callback;
58	int type, pri, errorno;	154	int type, pri, result;
59		155
60	DB_ENV *env;	156	DB_ENV *env;
61	DB *db;	157	DB *db;
62	DB_TXN *txn;	158	DB_TXN *txn;
63	DBC *cursor;	159	DBC *dbc;
		160
		161	UV uv1;
64	int int1, int2;	162	int int1, int2;
65	U32 uint1, uint2;	163	U32 uint1, uint2;
66	char *buf1, *buf2;	164	char *buf1, *buf2, *buf3;
67	} aio_cb;	165	SV *sv1, *sv2, *sv3;
68		166
		167	DBT dbt1, dbt2, dbt3;
		168	DB_KEY_RANGE key_range;
		169	DB_SEQUENCE *seq;
		170	db_seq_t seq_t;
		171	} bdb_cb;
		172
69	typedef aio_cb *aio_req;	173	typedef bdb_cb *bdb_req;
70		174
71	enum {	175	enum {
72	PRI_MIN = -4,	176	PRI_MIN = -4,
73	PRI_MAX = 4,	177	PRI_MAX = 4,
74		178
…		…
77	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	181	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
78	};	182	};
79		183
80	#define AIO_TICKS ((1000000 + 1023) >> 10)	184	#define AIO_TICKS ((1000000 + 1023) >> 10)
81		185
		186	static SV *on_next_submit;
		187
82	static unsigned int max_poll_time = 0;	188	static unsigned int max_poll_time = 0;
83	static unsigned int max_poll_reqs = 0;	189	static unsigned int max_poll_reqs = 0;
84		190
85	/* calculcate time difference in ~1/AIO_TICKS of a second */	191	/* calculcate time difference in ~1/AIO_TICKS of a second */
86	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	192	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
91		197
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	198	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		199
94	static unsigned int started, idle, wanted;	200	static unsigned int started, idle, wanted;
95		201
96	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
97	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
98	#else
99	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
100	#endif
101
102	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
103	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104
105	/* worker threads management */	202	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	203	static mutex_t wrklock = X_MUTEX_INIT;
107		204
108	typedef struct worker {	205	typedef struct worker {
109	/* locked by wrklock */	206	/* locked by wrklock */
110	struct worker *prev, *next;	207	struct worker *prev, *next;
111		208
112	pthread_t tid;	209	thread_t tid;
113		210
114	/* locked by reslock, reqlock or wrklock */	211	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	212	bdb_req req; /* currently processed request */
116	void *dbuf;	213	void *dbuf;
117	DIR *dirp;	214	DIR *dirp;
118	} worker;	215	} worker;
119		216
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	217	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	229	}
133		230
134	static volatile unsigned int nreqs, nready, npending;	231	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	232	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	233	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	234	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		235
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	236	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	237	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	238	static cond_t reqwait = X_COND_INIT;
142		239
143	#if WORDACCESS_UNSAFE	240	#if WORDACCESS_UNSAFE
144		241
145	static unsigned int get_nready ()	242	static unsigned int get_nready (void)
146	{	243	{
147	unsigned int retval;	244	unsigned int retval;
148		245
149	LOCK (reqlock);	246	X_LOCK (reqlock);
150	retval = nready;	247	retval = nready;
151	UNLOCK (reqlock);	248	X_UNLOCK (reqlock);
152		249
153	return retval;	250	return retval;
154	}	251	}
155		252
156	static unsigned int get_npending ()	253	static unsigned int get_npending (void)
157	{	254	{
158	unsigned int retval;	255	unsigned int retval;
159		256
160	LOCK (reslock);	257	X_LOCK (reslock);
161	retval = npending;	258	retval = npending;
162	UNLOCK (reslock);	259	X_UNLOCK (reslock);
163		260
164	return retval;	261	return retval;
165	}	262	}
166		263
167	static unsigned int get_nthreads ()	264	static unsigned int get_nthreads (void)
168	{	265	{
169	unsigned int retval;	266	unsigned int retval;
170		267
171	LOCK (wrklock);	268	X_LOCK (wrklock);
172	retval = started;	269	retval = started;
173	UNLOCK (wrklock);	270	X_UNLOCK (wrklock);
174		271
175	return retval;	272	return retval;
176	}	273	}
177		274
178	#else	275	#else
…		…
187	* a somewhat faster data structure might be nice, but	284	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	285	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	286	* per shift, the most expensive operation.
190	*/	287	*/
191	typedef struct {	288	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	289	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	290	int size;
194	} reqq;	291	} reqq;
195		292
196	static reqq req_queue;	293	static reqq req_queue;
197	static reqq res_queue;	294	static reqq res_queue;
198		295
199	int reqq_push (reqq *q, aio_req req)	296	int reqq_push (reqq *q, bdb_req req)
200	{	297	{
201	int pri = req->pri;	298	int pri = req->pri;
202	req->next = 0;	299	req->next = 0;
203		300
204	if (q->qe[pri])	301	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	307	q->qe[pri] = q->qs[pri] = req;
211		308
212	return q->size++;	309	return q->size++;
213	}	310	}
214		311
215	aio_req reqq_shift (reqq *q)	312	bdb_req reqq_shift (reqq *q)
216	{	313	{
217	int pri;	314	int pri;
218		315
219	if (!q->size)	316	if (!q->size)
220	return 0;	317	return 0;
221		318
222	--q->size;	319	--q->size;
223		320
224	for (pri = NUM_PRI; pri--; )	321	for (pri = NUM_PRI; pri--; )
225	{	322	{
226	aio_req req = q->qs[pri];	323	bdb_req req = q->qs[pri];
227		324
228	if (req)	325	if (req)
229	{	326	{
230	if (!(q->qs[pri] = req->next))	327	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	328	q->qe[pri] = 0;
…		…
235	}	332	}
236		333
237	abort ();	334	abort ();
238	}	335	}
239		336
240	static int poll_cb ();	337	static int poll_cb (void);
241	static void req_free (aio_req req);	338	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);	339	static void req_cancel (bdb_req req);
243		340
244	static int req_invoke (aio_req req)	341	static int req_invoke (bdb_req req)
245	{	342	{
246	dSP;	343	dSP;
247		344
248	if (SvOK (req->callback))	345	if (req->callback)
249	{	346	{
250	ENTER;	347	ENTER;
251	SAVETMPS;	348	SAVETMPS;
252	PUSHMARK (SP);	349	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		350
255	switch (req->type)	351	switch (req->type)
256	{	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;
257	}	399	}
		400
		401	errno = req->result;
258		402
259	PUTBACK;	403	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	404	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	405	SPAGAIN;
262		406
…		…
265	}	409	}
266		410
267	return !SvTRUE (ERRSV);	411	return !SvTRUE (ERRSV);
268	}	412	}
269		413
270	static void req_free (aio_req req)	414	static void req_free (bdb_req req)
271	{	415	{
		416	SvREFCNT_dec (req->callback);
		417
272	free (req->buf1);	418	free (req->buf1);
273	free (req->buf2);	419	free (req->buf2);
		420	free (req->buf3);
		421
274	Safefree (req);	422	Safefree (req);
275	}	423	}
276		424
277	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);
278		473
279	static void start_thread (void)	474	static void start_thread (void)
280	{	475	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	476	worker *wrk = calloc (1, sizeof (worker));
285		477
286	if (!wrk)	478	if (!wrk)
287	croak ("unable to allocate worker thread data");	479	croak ("unable to allocate worker thread data");
288		480
289	pthread_attr_init (&attr);
290	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
291	#ifdef PTHREAD_SCOPE_PROCESS
292	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
293	#endif
294
295	sigfillset (&fullsigset);
296
297	LOCK (wrklock);	481	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	482	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	483	{
302	wrk->prev = &wrk_first;	484	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	485	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	486	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	487	wrk_first.next = wrk;
306	++started;	488	++started;
307	}	489	}
308	else	490	else
309	free (wrk);	491	free (wrk);
310		492
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	493	X_UNLOCK (wrklock);
313	}	494	}
314		495
315	static void maybe_start_thread ()	496	static void maybe_start_thread (void)
316	{	497	{
317	if (get_nthreads () >= wanted)	498	if (get_nthreads () >= wanted)
318	return;	499	return;
319		500
320	/* todo: maybe use idle here, but might be less exact */	501	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	503	return;
323		504
324	start_thread ();	505	start_thread ();
325	}	506	}
326		507
327	static void req_send (aio_req req)	508	static void req_send (bdb_req req)
328	{	509	{
		510	SV *wait_callback = 0;
		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
		524	// synthesize callback if none given
		525	if (!req->callback)
		526	{
		527	int count;
		528
		529	dSP;
		530	PUSHMARK (SP);
		531	PUTBACK;
		532	count = call_sv (prepare_cb, G_ARRAY);
		533	SPAGAIN;
		534
		535	if (count != 2)
		536	croak ("prepare callback must return exactly two values\n");
		537
		538	wait_callback = POPs;
		539	SvREFCNT_dec (req->callback);
		540	req->callback = SvREFCNT_inc (POPs);
		541	}
		542
329	++nreqs;	543	++nreqs;
330		544
331	LOCK (reqlock);	545	X_LOCK (reqlock);
332	++nready;	546	++nready;
333	reqq_push (&req_queue, req);	547	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	548	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	549	X_UNLOCK (reqlock);
336		550
337	maybe_start_thread ();	551	maybe_start_thread ();
		552
		553	if (wait_callback)
		554	{
		555	dSP;
		556	PUSHMARK (SP);
		557	PUTBACK;
		558	call_sv (wait_callback, G_DISCARD);
		559	}
338	}	560	}
339		561
340	static void end_thread (void)	562	static void end_thread (void)
341	{	563	{
342	aio_req req;	564	bdb_req req;
343		565
344	Newz (0, req, 1, aio_cb);	566	Newz (0, req, 1, bdb_cb);
345		567
346	req->type = REQ_QUIT;	568	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	569	req->pri = PRI_MAX + PRI_BIAS;
348		570
349	LOCK (reqlock);	571	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	572	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	573	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	574	X_UNLOCK (reqlock);
353		575
354	LOCK (wrklock);	576	X_LOCK (wrklock);
355	--started;	577	--started;
356	UNLOCK (wrklock);	578	X_UNLOCK (wrklock);
357	}	579	}
358		580
359	static void set_max_idle (int nthreads)	581	static void set_max_idle (int nthreads)
360	{	582	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	583	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	584	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	585	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	586	}
365		587
366	static void min_parallel (int nthreads)	588	static void min_parallel (int nthreads)
367	{	589	{
368	if (wanted < nthreads)	590	if (wanted < nthreads)
…		…
376		598
377	while (started > wanted)	599	while (started > wanted)
378	end_thread ();	600	end_thread ();
379	}	601	}
380		602
381	static void poll_wait ()	603	static void poll_wait (void)
382	{	604	{
383	fd_set rfd;	605	fd_set rfd;
384		606
385	while (nreqs)	607	while (nreqs)
386	{	608	{
387	int size;	609	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	610	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	611	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	612	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		613
392	if (size)	614	if (size)
393	return;	615	return;
394		616
395	maybe_start_thread ();	617	maybe_start_thread ();
396		618
397	FD_ZERO(&rfd);	619	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	620	FD_SET (respipe [0], &rfd);
399		621
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	622	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	623	}
402	}	624	}
403		625
404	static int poll_cb ()	626	static int poll_cb (void)
405	{	627	{
406	dSP;	628	dSP;
407	int count = 0;	629	int count = 0;
408	int maxreqs = max_poll_reqs;	630	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	631	int do_croak = 0;
410	struct timeval tv_start, tv_now;	632	struct timeval tv_start, tv_now;
411	aio_req req;	633	bdb_req req;
412		634
413	if (max_poll_time)	635	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	636	gettimeofday (&tv_start, 0);
415		637
416	for (;;)	638	for (;;)
417	{	639	{
418	for (;;)	640	for (;;)
419	{	641	{
420	maybe_start_thread ();	642	maybe_start_thread ();
421		643
422	LOCK (reslock);	644	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	645	req = reqq_shift (&res_queue);
424		646
425	if (req)	647	if (req)
426	{	648	{
427	--npending;	649	--npending;
428		650
429	if (!res_queue.size)	651	if (!res_queue.size)
430	{	652	{
431	/* read any signals sent by the worker threads */	653	/* read any signals sent by the worker threads */
432	char buf [4];	654	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	655	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	656	;
435	}	657	}
436	}	658	}
437		659
438	UNLOCK (reslock);	660	X_UNLOCK (reslock);
439		661
440	if (!req)	662	if (!req)
441	break;	663	break;
442		664
443	--nreqs;	665	--nreqs;
…		…
473	}	695	}
474		696
475	return count;	697	return count;
476	}	698	}
477		699
478	static void create_pipe ()
479	{
480	if (pipe (respipe))
481	croak ("unable to initialize result pipe");
482
483	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
484	croak ("cannot set result pipe to nonblocking mode");
485
486	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
487	croak ("cannot set result pipe to nonblocking mode");
488	}
489
490	/*****************************************************************************/	700	/*****************************************************************************/
491		701
492	static void *aio_proc (void *thr_arg)	702	X_THREAD_PROC (bdb_proc)
493	{	703	{
494	aio_req req;	704	bdb_req req;
495	struct timespec ts;	705	struct timespec ts;
496	worker *self = (worker *)thr_arg;	706	worker *self = (worker *)thr_arg;
497		707
498	/* try to distribute timeouts somewhat evenly */	708	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	709	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		710
502	for (;;)	711	for (;;)
503	{	712	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	713	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		714
506	LOCK (reqlock);	715	X_LOCK (reqlock);
507		716
508	for (;;)	717	for (;;)
509	{	718	{
510	self->req = req = reqq_shift (&req_queue);	719	self->req = req = reqq_shift (&req_queue);
511		720
512	if (req)	721	if (req)
513	break;	722	break;
514		723
515	++idle;	724	++idle;
516		725
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	726	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	727	== ETIMEDOUT)
519	{	728	{
520	if (idle > max_idle)	729	if (idle > max_idle)
521	{	730	{
522	--idle;	731	--idle;
523	UNLOCK (reqlock);	732	X_UNLOCK (reqlock);
524	LOCK (wrklock);	733	X_LOCK (wrklock);
525	--started;	734	--started;
526	UNLOCK (wrklock);	735	X_UNLOCK (wrklock);
527	goto quit;	736	goto quit;
528	}	737	}
529		738
530	/* we are allowed to idle, so do so without any timeout */	739	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	740	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	741	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	742	}
534		743
535	--idle;	744	--idle;
536	}	745	}
537		746
538	--nready;	747	--nready;
539		748
540	UNLOCK (reqlock);	749	X_UNLOCK (reqlock);
541		750
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	751	switch (req->type)
545	{	752	{
546	case REQ_QUIT:	753	case REQ_QUIT:
		754	req->result = ENOSYS;
547	goto quit;	755	goto quit;
548		756
		757	case REQ_ENV_OPEN:
		758	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		759	break;
		760
		761	case REQ_ENV_CLOSE:
		762	req->result = req->env->close (req->env, req->uint1);
		763	break;
		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
		789	case REQ_DB_OPEN:
		790	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		791	break;
		792
		793	case REQ_DB_CLOSE:
		794	req->result = req->db->close (req->db, req->uint1);
		795	break;
		796
		797	case REQ_DB_COMPACT:
		798	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		799	break;
		800
		801	case REQ_DB_SYNC:
		802	req->result = req->db->sync (req->db, req->uint1);
		803	break;
		804
		805	case REQ_DB_UPGRADE:
		806	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		807	break;
		808
		809	case REQ_DB_PUT:
		810	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		811	break;
		812
		813	case REQ_DB_GET:
		814	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		815	break;
		816
		817	case REQ_DB_PGET:
		818	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		819	break;
		820
		821	case REQ_DB_DEL:
		822	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		823	break;
		824
		825	case REQ_DB_KEY_RANGE:
		826	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		827	break;
		828
		829	case REQ_TXN_COMMIT:
		830	req->result = req->txn->commit (req->txn, req->uint1);
		831	break;
		832
		833	case REQ_TXN_ABORT:
		834	req->result = req->txn->abort (req->txn);
		835	break;
		836
		837	case REQ_TXN_FINISH:
		838	if (req->txn->flags & TXN_DEADLOCK)
		839	{
		840	req->result = req->txn->abort (req->txn);
		841	if (!req->result)
		842	req->result = DB_LOCK_DEADLOCK;
		843	}
		844	else
		845	req->result = req->txn->commit (req->txn, req->uint1);
		846	break;
		847
		848	case REQ_C_CLOSE:
		849	req->result = req->dbc->c_close (req->dbc);
		850	break;
		851
		852	case REQ_C_COUNT:
		853	{
		854	db_recno_t recno;
		855	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		856	req->uv1 = recno;
		857	}
		858	break;
		859
		860	case REQ_C_PUT:
		861	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		862	break;
		863
		864	case REQ_C_GET:
		865	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		866	break;
		867
		868	case REQ_C_PGET:
		869	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		870	break;
		871
		872	case REQ_C_DEL:
		873	req->result = req->dbc->c_del (req->dbc, req->uint1);
		874	break;
		875
		876	case REQ_SEQ_OPEN:
		877	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		878	break;
		879
		880	case REQ_SEQ_CLOSE:
		881	req->result = req->seq->close (req->seq, req->uint1);
		882	break;
		883
		884	case REQ_SEQ_GET:
		885	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		886	break;
		887
		888	case REQ_SEQ_REMOVE:
		889	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		890	break;
		891
549	default:	892	default:
550	//req->result = ENOSYS;	893	req->result = ENOSYS;
551	break;	894	break;
552	}	895	}
553		896
554	//req->errorno = errno;	897	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		898	req->txn->flags |= TXN_DEADLOCK;
555		899
556	LOCK (reslock);	900	X_LOCK (reslock);
557		901
558	++npending;	902	++npending;
559		903
560	if (!reqq_push (&res_queue, req))	904	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	905	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	906	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		907
564	self->req = 0;	908	self->req = 0;
565	worker_clear (self);	909	worker_clear (self);
566		910
567	UNLOCK (reslock);	911	X_UNLOCK (reslock);
568	}	912	}
569		913
570	quit:	914	quit:
571	LOCK (wrklock);	915	X_LOCK (wrklock);
572	worker_free (self);	916	worker_free (self);
573	UNLOCK (wrklock);	917	X_UNLOCK (wrklock);
574		918
575	return 0;	919	return 0;
576	}	920	}
577		921
578	/*****************************************************************************/	922	/*****************************************************************************/
579		923
580	static void atfork_prepare (void)	924	static void atfork_prepare (void)
581	{	925	{
582	LOCK (wrklock);	926	X_LOCK (wrklock);
583	LOCK (reqlock);	927	X_LOCK (reqlock);
584	LOCK (reslock);	928	X_LOCK (reslock);
585	}	929	}
586		930
587	static void atfork_parent (void)	931	static void atfork_parent (void)
588	{	932	{
589	UNLOCK (reslock);	933	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	934	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	935	X_UNLOCK (wrklock);
592	}	936	}
593		937
594	static void atfork_child (void)	938	static void atfork_child (void)
595	{	939	{
596	aio_req prv;	940	bdb_req prv;
597		941
598	while (prv = reqq_shift (&req_queue))	942	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	943	req_free (prv);
600		944
601	while (prv = reqq_shift (&res_queue))	945	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	960	idle = 0;
617	nreqs = 0;	961	nreqs = 0;
618	nready = 0;	962	nready = 0;
619	npending = 0;	963	npending = 0;
620		964
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	965	create_respipe ();
624		966
625	atfork_parent ();	967	atfork_parent ();
626	}	968	}
627		969
628	#define dREQ(reqtype) \	970	#define dREQ(reqtype) \
629	aio_req req; \	971	bdb_req req; \
630	int req_pri = next_pri; \	972	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	973	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	974	\
633	if (SvOK (callback) && !SvROK (callback)) \	975	if (callback && SvOK (callback)) \
634	croak ("callback must be undef or of reference type"); \	976	croak ("callback has illegal type or extra arguments"); \
635	\	977	\
636	Newz (0, req, 1, aio_cb); \	978	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	979	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	980	croak ("out of memory during bdb_req allocation"); \
639	\	981	\
640	req->callback = newSVsv (callback); \	982	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
641	req->type = (reqtype); \	983	req->type = (reqtype); \
642	req->pri = req_pri	984	req->pri = req_pri
643		985
644	#define REQ_SEND \	986	#define REQ_SEND \
645	req_send (req)	987	req_send (req)
646		988
647	#define SvPTR(var, arg, type, class) \	989	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	990	if (!SvOK (arg)) \
		991	{ \
		992	if (nullok != 1) \
		993	croak (# var " must be a " # class " object, not undef"); \
		994	\
649	(var) = 0; \	995	(var) = 0; \
		996	} \
650	else if (sv_derived_from ((arg), # class)) \	997	else if (sv_derived_from ((arg), # class)) \
651	{ \	998	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	999	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	1000	(var) = INT2PTR (type, tmp); \
		1001	if (!var && nullok != 2) \
		1002	croak (# var " is not a valid " # class " object anymore"); \
654	} \	1003	} \
655	else \	1004	else \
656	Perl_croak (# var " is not of type " # type)	1005	croak (# var " is not of type " # class);
657		1006
		1007	static void
		1008	ptr_nuke (SV *sv)
		1009	{
		1010	assert (SvROK (sv));
		1011	sv_setiv (SvRV (sv), 0);
		1012	}
		1013
		1014	static int
		1015	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1016	{
		1017	if (*mg->mg_ptr == '!') // should always be the case
		1018	if (-30999 <= errno && errno <= -30800)
		1019	{
		1020	sv_setnv (sv, (NV)errno);
		1021	sv_setpv (sv, db_strerror (errno));
		1022	SvNOK_on (sv); /* what a wonderful hack! */
		1023	// ^^^ copied from perl sources
		1024	return 0;
		1025	}
		1026
		1027	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1028	}
		1029
		1030	static MGVTBL vtbl_errno;
		1031
		1032	// this wonderful hack :( patches perl's $! variable to support our errno values
		1033	static void
		1034	patch_errno (void)
		1035	{
		1036	SV *sv;
		1037	MAGIC *mg;
		1038
		1039	if (!(sv = get_sv ("!", 1)))
		1040	return;
		1041
		1042	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1043	return;
		1044
		1045	if (mg->mg_virtual != &PL_vtbl_sv)
		1046	return;
		1047
		1048	vtbl_errno = PL_vtbl_sv;
		1049	vtbl_errno.svt_get = errno_get;
		1050	mg->mg_virtual = &vtbl_errno;
		1051	}
		1052
		1053	#if __GNUC__ >= 4
		1054	# define noinline __attribute__ ((noinline))
		1055	#else
		1056	# define noinline
		1057	#endif
		1058
		1059	static noinline SV *
		1060	pop_callback (I32 *ritems, SV *sv)
		1061	{
		1062	if (SvROK (sv))
		1063	{
		1064	HV *st;
		1065	GV *gvp;
		1066	CV *cv;
		1067	const char *name;
		1068
		1069	/* forgive me */
		1070	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1071	&& (st = SvSTASH (SvRV (sv)))
		1072	&& (name = HvNAME_get (st))
		1073	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1074	return 0;
		1075
		1076	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1077	{
		1078	--*ritems;
		1079	return (SV *)cv;
		1080	}
		1081	}
		1082
		1083	return 0;
		1084	}
		1085
		1086	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1087
658	MODULE = BDB PACKAGE = BDB	1088	MODULE = BDB PACKAGE = BDB
659		1089
660	PROTOTYPES: ENABLE	1090	PROTOTYPES: ENABLE
661		1091
662	BOOT:	1092	BOOT:
…		…
677	const_iv (INIT_TXN)	1107	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1108	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1109	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1110	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1111	const_iv (CREATE)
		1112	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1113	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1114	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1115	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1116	const_iv (PRIVATE)
686	const_iv (REGISTER)	1117	const_iv (REGISTER)
687	const_iv (SYSTEM_MEM)	1118	const_iv (SYSTEM_MEM)
688	const_iv (AUTO_COMMIT)	1119	const_iv (AUTO_COMMIT)
689	const_iv (CDB_ALLDB)	1120	const_iv (CDB_ALLDB)
690	const_iv (DIRECT_DB)	1121	const_iv (DIRECT_DB)
691	const_iv (DIRECT_LOG)
692	const_iv (DSYNC_DB)	1122	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1123	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1124	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1125	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1126	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1127	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1128	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1129	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1130	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1131	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1132	const_iv (TXN_WRITE_NOSYNC)
		1133	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1134	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1135	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1136	const_iv (XA_CREATE)
710	const_iv (BTREE)	1137	const_iv (BTREE)
711	const_iv (HASH)	1138	const_iv (HASH)
712	const_iv (QUEUE)	1139	const_iv (QUEUE)
713	const_iv (RECNO)	1140	const_iv (RECNO)
714	const_iv (UNKNOWN)	1141	const_iv (UNKNOWN)
715	const_iv (EXCL)	1142	const_iv (EXCL)
		1143	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	1144	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1145	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1146	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1147	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1148	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1149	const_iv (DUP)
723	const_iv (DUPSORT)	1150	const_iv (DUPSORT)
724	const_iv (RECNUM)	1151	const_iv (RECNUM)
725	const_iv (RENUMBER)	1152	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1153	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	1154	const_iv (INORDER)
728	const_iv (CONSUME)	1155	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1156	const_iv (CONSUME_WAIT)
		1157	const_iv (GET_BOTH)
		1158	const_iv (GET_BOTH_RANGE)
		1159	//const_iv (SET_RECNO)
		1160	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1161	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1162	const_iv (JOIN_ITEM)
		1163	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1164	const_iv (RMW)
733		1165
734	const_iv (NOTFOUND)	1166	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1167	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1168	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1169	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1170	const_iv (RUNRECOVERY)
		1171	const_iv (OLD_VERSION)
		1172	const_iv (REP_HANDLE_DEAD)
		1173	const_iv (REP_LOCKOUT)
		1174	const_iv (SECONDARY_BAD)
		1175
		1176	const_iv (FREE_SPACE)
		1177	const_iv (FREELIST_ONLY)
		1178
		1179	const_iv (APPEND)
		1180	const_iv (NODUPDATA)
		1181	const_iv (NOOVERWRITE)
		1182
		1183	const_iv (TXN_NOWAIT)
		1184	const_iv (TXN_SYNC)
		1185
		1186	const_iv (SET_LOCK_TIMEOUT)
		1187	const_iv (SET_TXN_TIMEOUT)
		1188
		1189	const_iv (FIRST)
		1190	const_iv (NEXT)
		1191	const_iv (NEXT_DUP)
		1192	const_iv (NEXT_NODUP)
		1193	const_iv (PREV)
		1194	const_iv (PREV_NODUP)
		1195	const_iv (SET)
		1196	const_iv (SET_RANGE)
		1197	const_iv (LAST)
		1198	const_iv (BEFORE)
		1199	const_iv (AFTER)
		1200	const_iv (CURRENT)
		1201	const_iv (KEYFIRST)
		1202	const_iv (KEYLAST)
		1203	const_iv (NODUPDATA)
		1204
		1205	const_iv (FORCE)
		1206
		1207	const_iv (LOCK_DEFAULT)
		1208	const_iv (LOCK_EXPIRE)
		1209	const_iv (LOCK_MAXLOCKS)
		1210	const_iv (LOCK_MAXWRITE)
		1211	const_iv (LOCK_MINLOCKS)
		1212	const_iv (LOCK_MINWRITE)
		1213	const_iv (LOCK_OLDEST)
		1214	const_iv (LOCK_RANDOM)
		1215	const_iv (LOCK_YOUNGEST)
		1216
		1217	const_iv (SEQ_DEC)
		1218	const_iv (SEQ_INC)
		1219	const_iv (SEQ_WRAP)
		1220
		1221	const_iv (BUFFER_SMALL)
		1222	const_iv (DONOTINDEX)
		1223	const_iv (KEYEMPTY )
		1224	const_iv (KEYEXIST )
		1225	const_iv (LOCK_DEADLOCK)
		1226	const_iv (LOCK_NOTGRANTED)
		1227	const_iv (LOG_BUFFER_FULL)
		1228	const_iv (NOSERVER)
		1229	const_iv (NOSERVER_HOME)
		1230	const_iv (NOSERVER_ID)
		1231	const_iv (NOTFOUND)
		1232	const_iv (PAGE_NOTFOUND)
		1233	const_iv (REP_DUPMASTER)
		1234	const_iv (REP_HANDLE_DEAD)
		1235	const_iv (REP_HOLDELECTION)
		1236	const_iv (REP_IGNORE)
		1237	const_iv (REP_ISPERM)
		1238	const_iv (REP_JOIN_FAILURE)
		1239	const_iv (REP_LOCKOUT)
		1240	const_iv (REP_NEWMASTER)
		1241	const_iv (REP_NEWSITE)
		1242	const_iv (REP_NOTPERM)
		1243	const_iv (REP_UNAVAIL)
		1244	const_iv (RUNRECOVERY)
		1245	const_iv (SECONDARY_BAD)
		1246	const_iv (VERIFY_BAD)
		1247	const_iv (VERSION_MISMATCH)
		1248
		1249	const_iv (VERB_DEADLOCK)
		1250	const_iv (VERB_RECOVERY)
		1251	const_iv (VERB_REGISTER)
		1252	const_iv (VERB_REPLICATION)
		1253	const_iv (VERB_WAITSFOR)
		1254
		1255	const_iv (VERSION_MAJOR)
		1256	const_iv (VERSION_MINOR)
		1257	const_iv (VERSION_PATCH)
		1258	#if DB_VERSION_MINOR >= 5
		1259	const_iv (MULTIVERSION)
		1260	const_iv (TXN_SNAPSHOT)
		1261	#endif
		1262	#if DB_VERSION_MINOR >= 6
		1263	const_iv (PREV_DUP)
		1264	const_iv (PRIORITY_UNCHANGED)
		1265	const_iv (PRIORITY_VERY_LOW)
		1266	const_iv (PRIORITY_LOW)
		1267	const_iv (PRIORITY_DEFAULT)
		1268	const_iv (PRIORITY_HIGH)
		1269	const_iv (PRIORITY_VERY_HIGH)
		1270	#endif
		1271	#if DB_VERSION_MINOR >= 7
		1272	const_iv (LOG_DIRECT)
		1273	const_iv (LOG_DSYNC)
		1274	const_iv (LOG_AUTO_REMOVE)
		1275	const_iv (LOG_IN_MEMORY)
		1276	const_iv (LOG_ZERO)
		1277	#else
		1278	const_iv (DIRECT_LOG)
		1279	const_iv (DSYNC_LOG)
		1280	const_iv (LOG_AUTOREMOVE)
		1281	const_iv (LOG_INMEMORY)
		1282	#endif
739	};	1283	};
740		1284
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1285	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1286	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1287
744	create_pipe ();	1288	{
		1289	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1290	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1291
		1292	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1293	}
		1294
		1295	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1296
		1297	create_respipe ();
		1298
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1299	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1300	patch_errno ();
746	}	1301	}
747		1302
748	void	1303	void
749	max_poll_reqs (int nreqs)	1304	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1305	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1334	max_outstanding = maxreqs;
780	OUTPUT:	1335	OUTPUT:
781	RETVAL	1336	RETVAL
782		1337
783	int	1338	int
784	bdbreq_pri (int pri = 0)	1339	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1340	PROTOTYPE: ;$
786	CODE:	1341	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1342	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1343	if (items > 0)
789	{	1344	{
…		…
793	}	1348	}
794	OUTPUT:	1349	OUTPUT:
795	RETVAL	1350	RETVAL
796		1351
797	void	1352	void
798	bdbreq_nice (int nice = 0)	1353	dbreq_nice (int nice = 0)
799	CODE:	1354	CODE:
800	nice = next_pri - nice;	1355	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1356	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1357	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1358	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1366	poll_wait ();
812	poll_cb ();	1367	poll_cb ();
813	}	1368	}
814		1369
815	int	1370	int
816	poll()	1371	poll ()
817	PROTOTYPE:	1372	PROTOTYPE:
818	CODE:	1373	CODE:
819	poll_wait ();	1374	poll_wait ();
820	RETVAL = poll_cb ();	1375	RETVAL = poll_cb ();
821	OUTPUT:	1376	OUTPUT:
822	RETVAL	1377	RETVAL
823		1378
824	int	1379	int
825	poll_fileno()	1380	poll_fileno ()
826	PROTOTYPE:	1381	PROTOTYPE:
827	CODE:	1382	CODE:
828	RETVAL = respipe [0];	1383	RETVAL = respipe [0];
829	OUTPUT:	1384	OUTPUT:
830	RETVAL	1385	RETVAL
831		1386
832	int	1387	int
833	poll_cb(...)	1388	poll_cb (...)
834	PROTOTYPE:	1389	PROTOTYPE:
835	CODE:	1390	CODE:
836	RETVAL = poll_cb ();	1391	RETVAL = poll_cb ();
837	OUTPUT:	1392	OUTPUT:
838	RETVAL	1393	RETVAL
839		1394
840	void	1395	void
841	poll_wait()	1396	poll_wait ()
842	PROTOTYPE:	1397	PROTOTYPE:
843	CODE:	1398	CODE:
844	poll_wait ();	1399	poll_wait ();
845		1400
846	int	1401	int
847	nreqs()	1402	nreqs ()
848	PROTOTYPE:	1403	PROTOTYPE:
849	CODE:	1404	CODE:
850	RETVAL = nreqs;	1405	RETVAL = nreqs;
851	OUTPUT:	1406	OUTPUT:
852	RETVAL	1407	RETVAL
853		1408
854	int	1409	int
855	nready()	1410	nready ()
856	PROTOTYPE:	1411	PROTOTYPE:
857	CODE:	1412	CODE:
858	RETVAL = get_nready ();	1413	RETVAL = get_nready ();
859	OUTPUT:	1414	OUTPUT:
860	RETVAL	1415	RETVAL
861		1416
862	int	1417	int
863	npending()	1418	npending ()
864	PROTOTYPE:	1419	PROTOTYPE:
865	CODE:	1420	CODE:
866	RETVAL = get_npending ();	1421	RETVAL = get_npending ();
867	OUTPUT:	1422	OUTPUT:
868	RETVAL	1423	RETVAL
869		1424
870	int	1425	int
871	nthreads()	1426	nthreads ()
872	PROTOTYPE:	1427	PROTOTYPE:
873	CODE:	1428	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1429	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1430	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1431	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1432	OUTPUT:
878	RETVAL	1433	RETVAL
879		1434
		1435	void
		1436	set_sync_prepare (SV *cb)
		1437	PROTOTYPE: &
		1438	CODE:
		1439	SvREFCNT_dec (prepare_cb);
		1440	prepare_cb = newSVsv (cb);
		1441
		1442	char *
		1443	strerror (int errorno = errno)
		1444	PROTOTYPE: ;$
		1445	CODE:
		1446	RETVAL = db_strerror (errorno);
		1447	OUTPUT:
		1448	RETVAL
		1449
		1450	void _on_next_submit (SV *cb)
		1451	CODE:
		1452	SvREFCNT_dec (on_next_submit);
		1453	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1454
880	DB_ENV *	1455	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1456	db_env_create (U32 env_flags = 0)
882	CODE:	1457	CODE:
883	{	1458	{
884	int err = db_env_create (&RETVAL, env_flags);	1459	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1460	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1461	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1462
		1463	if (0)
		1464	{
		1465	RETVAL->set_errcall (RETVAL, debug_errcall);
		1466	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1467	}
		1468	}
		1469	OUTPUT:
		1470	RETVAL
		1471
889	void	1472	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1473	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1474	PREINIT:
		1475	CALLBACK
891	CODE:	1476	CODE:
892	{	1477	{
893	dREQ (REQ_ENV_OPEN);	1478	dREQ (REQ_ENV_OPEN);
894	req->env = env;	1479	req->env = env;
895	req->uint1 = open_flags;	1480	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1481	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1482	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1483	REQ_SEND;
899	}	1484	}
900		1485
901	void	1486	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1487	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1488	PREINIT:
		1489	CALLBACK
903	CODE:	1490	CODE:
904	{	1491	{
905	dREQ (REQ_ENV_CLOSE);	1492	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1493	req->env = env;
907	req->uint1 = flags;	1494	req->uint1 = flags;
908	REQ_SEND;	1495	REQ_SEND;
		1496	ptr_nuke (ST (0));
		1497	}
		1498
		1499	void
		1500	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1501	PREINIT:
		1502	CALLBACK
		1503	CODE:
		1504	{
		1505	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1506	req->env = env;
		1507	req->uint1 = kbyte;
		1508	req->int1 = min;
		1509	req->uint2 = flags;
		1510	REQ_SEND;
		1511	}
		1512
		1513	void
		1514	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1515	PREINIT:
		1516	CALLBACK
		1517	CODE:
		1518	{
		1519	dREQ (REQ_ENV_LOCK_DETECT);
		1520	req->env = env;
		1521	req->uint1 = flags;
		1522	req->uint2 = atype;
		1523	/* req->int2 = 0; dummy */
		1524	REQ_SEND;
		1525	}
		1526
		1527	void
		1528	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1529	PREINIT:
		1530	CALLBACK
		1531	CODE:
		1532	{
		1533	dREQ (REQ_ENV_MEMP_SYNC);
		1534	req->env = env;
		1535	REQ_SEND;
		1536	}
		1537
		1538	void
		1539	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1540	PREINIT:
		1541	CALLBACK
		1542	CODE:
		1543	{
		1544	dREQ (REQ_ENV_MEMP_TRICKLE);
		1545	req->env = env;
		1546	req->int1 = percent;
		1547	REQ_SEND;
		1548	}
		1549
		1550	void
		1551	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1552	PREINIT:
		1553	CALLBACK
		1554	CODE:
		1555	{
		1556	dREQ (REQ_ENV_DBREMOVE);
		1557	req->env = env;
		1558	req->buf1 = strdup_ornull (file);
		1559	req->buf2 = strdup_ornull (database);
		1560	req->uint1 = flags;
		1561	REQ_SEND;
		1562	}
		1563
		1564	void
		1565	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)
		1566	PREINIT:
		1567	CALLBACK
		1568	CODE:
		1569	{
		1570	dREQ (REQ_ENV_DBRENAME);
		1571	req->env = env;
		1572	req->buf1 = strdup_ornull (file);
		1573	req->buf2 = strdup_ornull (database);
		1574	req->buf3 = strdup_ornull (newname);
		1575	req->uint1 = flags;
		1576	REQ_SEND;
909	}	1577	}
910		1578
911	DB *	1579	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1580	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1581	CODE:
914	{	1582	{
915	int err = db_create (&RETVAL, env, flags);	1583	errno = db_create (&RETVAL, env, flags);
916	if (err)	1584	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1585	croak ("db_create: %s", db_strerror (errno));
918	}
919		1586
		1587	if (RETVAL)
		1588	RETVAL->app_private = (void *)newSVsv (ST (0));
		1589	}
		1590	OUTPUT:
		1591	RETVAL
		1592
920	void	1593	void
921	bdb_db_open (DB *db, DB_TXN *txnid, const char *file, const char *database, int type, U32 flags, int mode, SV *callback = 0)	1594	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1595	PREINIT:
		1596	CALLBACK
922	CODE:	1597	CODE:
923	{	1598	{
924	dREQ (REQ_DB_OPEN);	1599	dREQ (REQ_DB_OPEN);
925	req->db = db;	1600	req->db = db;
926	req->txn = txnid;	1601	req->txn = txnid;
927	req->buf1 = strdup (file);	1602	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1603	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1604	req->int1 = type;
930	req->uint1 = flags;	1605	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1606	req->int2 = mode;
932	REQ_SEND;	1607	REQ_SEND;
933	}	1608	}
934		1609
935	void	1610	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1611	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1612	PREINIT:
		1613	CALLBACK
937	CODE:	1614	CODE:
938	{	1615	{
939	dREQ (REQ_DB_CLOSE);	1616	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1617	req->db = db;
941	req->uint1 = flags;	1618	req->uint1 = flags;
		1619	req->sv1 = (SV *)db->app_private;
		1620	REQ_SEND;
		1621	ptr_nuke (ST (0));
		1622	}
		1623
		1624	void
		1625	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)
		1626	PREINIT:
		1627	CALLBACK
		1628	CODE:
		1629	{
		1630	dREQ (REQ_DB_COMPACT);
		1631	req->db = db;
		1632	req->txn = txn;
		1633	sv_to_dbt (&req->dbt1, start);
		1634	sv_to_dbt (&req->dbt2, stop);
		1635	req->uint1 = flags;
		1636	REQ_SEND;
		1637	}
		1638
		1639	void
		1640	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1641	PREINIT:
		1642	CALLBACK
		1643	CODE:
		1644	{
		1645	dREQ (REQ_DB_SYNC);
		1646	req->db = db;
		1647	req->uint1 = flags;
		1648	REQ_SEND;
		1649	}
		1650
		1651	void
		1652	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1653	PREINIT:
		1654	CALLBACK
		1655	CODE:
		1656	{
		1657	dREQ (REQ_DB_SYNC);
		1658	req->db = db;
		1659	req->buf1 = strdup (file);
		1660	req->uint1 = flags;
		1661	REQ_SEND;
		1662	}
		1663
		1664	void
		1665	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1666	PREINIT:
		1667	CALLBACK
		1668	CODE:
		1669	{
		1670	dREQ (REQ_DB_KEY_RANGE);
		1671	req->db = db;
		1672	req->txn = txn;
		1673	sv_to_dbt (&req->dbt1, key);
		1674	req->uint1 = flags;
		1675	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1676	REQ_SEND;
		1677	}
		1678
		1679	void
		1680	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1681	PREINIT:
		1682	CALLBACK
		1683	CODE:
		1684	{
		1685	dREQ (REQ_DB_PUT);
		1686	req->db = db;
		1687	req->txn = txn;
		1688	sv_to_dbt (&req->dbt1, key);
		1689	sv_to_dbt (&req->dbt2, data);
		1690	req->uint1 = flags;
		1691	REQ_SEND;
		1692	}
		1693
		1694	void
		1695	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1696	PREINIT:
		1697	CALLBACK
		1698	CODE:
		1699	if (SvREADONLY (data))
		1700	croak ("can't modify read-only data scalar in db_get");
		1701	{
		1702	dREQ (REQ_DB_GET);
		1703	req->db = db;
		1704	req->txn = txn;
		1705	req->uint1 = flags;
		1706	sv_to_dbt (&req->dbt1, key);
		1707	req->dbt3.flags = DB_DBT_MALLOC;
		1708	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1709	REQ_SEND;
		1710	}
		1711
		1712	void
		1713	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, 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_pget");
		1719	{
		1720	dREQ (REQ_DB_PGET);
		1721	req->db = db;
		1722	req->txn = txn;
		1723	req->uint1 = flags;
		1724	sv_to_dbt (&req->dbt1, key);
		1725	sv_to_dbt (&req->dbt2, pkey);
		1726	req->dbt3.flags = DB_DBT_MALLOC;
		1727	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1728	REQ_SEND;
		1729	}
		1730
		1731	void
		1732	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1733	PREINIT:
		1734	CALLBACK
		1735	CODE:
		1736	{
		1737	dREQ (REQ_DB_DEL);
		1738	req->db = db;
		1739	req->txn = txn;
		1740	req->uint1 = flags;
		1741	sv_to_dbt (&req->dbt1, key);
		1742	REQ_SEND;
		1743	}
		1744
		1745	void
		1746	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1747	PREINIT:
		1748	CALLBACK
		1749	CODE:
		1750	{
		1751	dREQ (REQ_TXN_COMMIT);
		1752	req->txn = txn;
		1753	req->uint1 = flags;
		1754	REQ_SEND;
		1755	ptr_nuke (ST (0));
		1756	}
		1757
		1758	void
		1759	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1760	PREINIT:
		1761	CALLBACK
		1762	CODE:
		1763	{
		1764	dREQ (REQ_TXN_ABORT);
		1765	req->txn = txn;
		1766	REQ_SEND;
		1767	ptr_nuke (ST (0));
		1768	}
		1769
		1770	void
		1771	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1772	PREINIT:
		1773	CALLBACK
		1774	CODE:
		1775	{
		1776	dREQ (REQ_TXN_FINISH);
		1777	req->txn = txn;
		1778	req->uint1 = flags;
		1779	REQ_SEND;
		1780	ptr_nuke (ST (0));
		1781	}
		1782
		1783	void
		1784	db_c_close (DBC *dbc, SV *callback = 0)
		1785	PREINIT:
		1786	CALLBACK
		1787	CODE:
		1788	{
		1789	dREQ (REQ_C_CLOSE);
		1790	req->dbc = dbc;
		1791	REQ_SEND;
		1792	ptr_nuke (ST (0));
		1793	}
		1794
		1795	void
		1796	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1797	PREINIT:
		1798	CALLBACK
		1799	CODE:
		1800	{
		1801	dREQ (REQ_C_COUNT);
		1802	req->dbc = dbc;
		1803	req->sv1 = SvREFCNT_inc (count);
		1804	REQ_SEND;
		1805	}
		1806
		1807	void
		1808	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1809	PREINIT:
		1810	CALLBACK
		1811	CODE:
		1812	{
		1813	dREQ (REQ_C_PUT);
		1814	req->dbc = dbc;
		1815	sv_to_dbt (&req->dbt1, key);
		1816	sv_to_dbt (&req->dbt2, data);
		1817	req->uint1 = flags;
		1818	REQ_SEND;
		1819	}
		1820
		1821	void
		1822	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1823	PREINIT:
		1824	CALLBACK
		1825	CODE:
		1826	{
		1827	dREQ (REQ_C_GET);
		1828	req->dbc = dbc;
		1829	req->uint1 = flags;
		1830	if ((flags & DB_SET) == DB_SET
		1831	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1832	sv_to_dbt (&req->dbt1, key);
		1833	else
		1834	req->dbt1.flags = DB_DBT_MALLOC;
		1835
		1836	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1837
		1838	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1839	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1840	sv_to_dbt (&req->dbt3, data);
		1841	else
		1842	req->dbt3.flags = DB_DBT_MALLOC;
		1843
		1844	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1845	REQ_SEND;
		1846	}
		1847
		1848	void
		1849	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1850	PREINIT:
		1851	CALLBACK
		1852	CODE:
		1853	{
		1854	dREQ (REQ_C_PGET);
		1855	req->dbc = dbc;
		1856	req->uint1 = flags;
		1857	if ((flags & DB_SET) == DB_SET
		1858	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1859	sv_to_dbt (&req->dbt1, key);
		1860	else
		1861	req->dbt1.flags = DB_DBT_MALLOC;
		1862
		1863	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1864
		1865	req->dbt2.flags = DB_DBT_MALLOC;
		1866	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1867
		1868	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1869	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1870	sv_to_dbt (&req->dbt3, data);
		1871	else
		1872	req->dbt3.flags = DB_DBT_MALLOC;
		1873
		1874	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1875	REQ_SEND;
		1876	}
		1877
		1878	void
		1879	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1880	PREINIT:
		1881	CALLBACK
		1882	CODE:
		1883	{
		1884	dREQ (REQ_C_DEL);
		1885	req->dbc = dbc;
		1886	req->uint1 = flags;
		1887	REQ_SEND;
		1888	}
		1889
		1890
		1891	void
		1892	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1893	PREINIT:
		1894	CALLBACK
		1895	CODE:
		1896	{
		1897	dREQ (REQ_SEQ_OPEN);
		1898	req->seq = seq;
		1899	req->txn = txnid;
		1900	req->uint1 = flags | DB_THREAD;
		1901	sv_to_dbt (&req->dbt1, key);
		1902	REQ_SEND;
		1903	}
		1904
		1905	void
		1906	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1907	PREINIT:
		1908	CALLBACK
		1909	CODE:
		1910	{
		1911	dREQ (REQ_SEQ_CLOSE);
		1912	req->seq = seq;
		1913	req->uint1 = flags;
		1914	REQ_SEND;
		1915	ptr_nuke (ST (0));
		1916	}
		1917
		1918	void
		1919	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1920	PREINIT:
		1921	CALLBACK
		1922	CODE:
		1923	{
		1924	dREQ (REQ_SEQ_GET);
		1925	req->seq = seq;
		1926	req->txn = txnid;
		1927	req->int1 = delta;
		1928	req->uint1 = flags;
		1929	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1930	REQ_SEND;
		1931	}
		1932
		1933	void
		1934	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1935	PREINIT:
		1936	CALLBACK
		1937	CODE:
		1938	{
		1939	dREQ (REQ_SEQ_REMOVE);
		1940	req->seq = seq;
		1941	req->txn = txnid;
		1942	req->uint1 = flags;
942	REQ_SEND;	1943	REQ_SEND;
943	}	1944	}
944		1945
945		1946
946	MODULE = BDB PACKAGE = BDB::Env	1947	MODULE = BDB PACKAGE = BDB::Env
947		1948
		1949	void
		1950	DESTROY (DB_ENV_ornuked *env)
		1951	CODE:
		1952	if (env)
		1953	env->close (env, 0);
		1954
		1955	int set_data_dir (DB_ENV *env, const char *dir)
		1956	CODE:
		1957	RETVAL = env->set_data_dir (env, dir);
		1958	OUTPUT:
		1959	RETVAL
		1960
		1961	int set_tmp_dir (DB_ENV *env, const char *dir)
		1962	CODE:
		1963	RETVAL = env->set_tmp_dir (env, dir);
		1964	OUTPUT:
		1965	RETVAL
		1966
		1967	int set_lg_dir (DB_ENV *env, const char *dir)
		1968	CODE:
		1969	RETVAL = env->set_lg_dir (env, dir);
		1970	OUTPUT:
		1971	RETVAL
		1972
		1973	int set_shm_key (DB_ENV *env, long shm_key)
		1974	CODE:
		1975	RETVAL = env->set_shm_key (env, shm_key);
		1976	OUTPUT:
		1977	RETVAL
		1978
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1979	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1980	CODE:
		1981	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1982	OUTPUT:
		1983	RETVAL
949		1984
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1985	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1986	CODE:
		1987	RETVAL = env->set_flags (env, flags, onoff);
		1988	OUTPUT:
		1989	RETVAL
951		1990
		1991	#if DB_VERSION_MINOR >= 7
		1992
		1993	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		1994	CODE:
		1995	RETVAL = env->set_intermediate_dir_mode (env, mode);
		1996	OUTPUT:
		1997	RETVAL
		1998
		1999	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2000	CODE:
		2001	RETVAL = env->log_set_config (env, flags, onoff);
		2002	OUTPUT:
		2003	RETVAL
		2004
		2005	#endif
		2006
		2007
		2008	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2009	CODE:
		2010	env->set_errfile (env, errfile);
		2011
		2012	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2013	CODE:
		2014	env->set_msgfile (env, msgfile);
		2015
		2016	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2017	CODE:
		2018	RETVAL = env->set_verbose (env, which, onoff);
		2019	OUTPUT:
		2020	RETVAL
		2021
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	2022	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2023	CODE:
		2024	RETVAL = env->set_encrypt (env, password, flags);
		2025	OUTPUT:
		2026	RETVAL
		2027
		2028	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2029	CODE:
		2030	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2031	OUTPUT:
		2032	RETVAL
		2033
		2034	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2035	CODE:
		2036	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2037	OUTPUT:
		2038	RETVAL
		2039
		2040	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2041	CODE:
		2042	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2043	OUTPUT:
		2044	RETVAL
		2045
		2046	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2047	CODE:
		2048	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2049	OUTPUT:
		2050	RETVAL
		2051
		2052	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2053	CODE:
		2054	RETVAL = env->set_lk_detect (env, detect);
		2055	OUTPUT:
		2056	RETVAL
		2057
		2058	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2059	CODE:
		2060	RETVAL = env->set_lk_max_lockers (env, max);
		2061	OUTPUT:
		2062	RETVAL
		2063
		2064	int set_lk_max_locks (DB_ENV *env, U32 max)
		2065	CODE:
		2066	RETVAL = env->set_lk_max_locks (env, max);
		2067	OUTPUT:
		2068	RETVAL
		2069
		2070	int set_lk_max_objects (DB_ENV *env, U32 max)
		2071	CODE:
		2072	RETVAL = env->set_lk_max_objects (env, max);
		2073	OUTPUT:
		2074	RETVAL
		2075
		2076	int set_lg_bsize (DB_ENV *env, U32 max)
		2077	CODE:
		2078	RETVAL = env->set_lg_bsize (env, max);
		2079	OUTPUT:
		2080	RETVAL
		2081
		2082	int set_lg_max (DB_ENV *env, U32 max)
		2083	CODE:
		2084	RETVAL = env->set_lg_max (env, max);
		2085	OUTPUT:
		2086	RETVAL
		2087
		2088	int mutex_set_max (DB_ENV *env, U32 max)
		2089	CODE:
		2090	RETVAL = env->mutex_set_max (env, max);
		2091	OUTPUT:
		2092	RETVAL
		2093
		2094	int mutex_set_increment (DB_ENV *env, U32 increment)
		2095	CODE:
		2096	RETVAL = env->mutex_set_increment (env, increment);
		2097	OUTPUT:
		2098	RETVAL
		2099
		2100	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2101	CODE:
		2102	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2103	OUTPUT:
		2104	RETVAL
		2105
		2106	int mutex_set_align (DB_ENV *env, U32 align)
		2107	CODE:
		2108	RETVAL = env->mutex_set_align (env, align);
		2109	OUTPUT:
		2110	RETVAL
		2111
		2112	DB_TXN *
		2113	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2114	CODE:
		2115	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2116	if (errno)
		2117	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2118	OUTPUT:
		2119	RETVAL
953		2120
954	MODULE = BDB PACKAGE = BDB::Db	2121	MODULE = BDB PACKAGE = BDB::Db
955		2122
		2123	void
		2124	DESTROY (DB_ornuked *db)
		2125	CODE:
		2126	if (db)
		2127	{
		2128	SV *env = (SV *)db->app_private;
		2129	db->close (db, 0);
		2130	SvREFCNT_dec (env);
		2131	}
		2132
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2133	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2134	CODE:
		2135	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2136	OUTPUT:
		2137	RETVAL
957		2138
958	int set_flags (DB *env, U32 flags, int onoff)	2139	int set_flags (DB *db, U32 flags)
		2140	CODE:
		2141	RETVAL = db->set_flags (db, flags);
		2142	OUTPUT:
		2143	RETVAL
959		2144
960	int set_encrypt (DB *db, const char *password, U32 flags)	2145	int set_encrypt (DB *db, const char *password, U32 flags)
		2146	CODE:
		2147	RETVAL = db->set_encrypt (db, password, flags);
		2148	OUTPUT:
		2149	RETVAL
961		2150
962	int set_lorder (DB *db, int lorder)	2151	int set_lorder (DB *db, int lorder)
963		2152	CODE:
		2153	RETVAL = db->set_lorder (db, lorder);
		2154	OUTPUT:
		2155	RETVAL
964		2156
965	int set_bt_minkey (DB *db, U32 minkey)	2157	int set_bt_minkey (DB *db, U32 minkey)
		2158	CODE:
		2159	RETVAL = db->set_bt_minkey (db, minkey);
		2160	OUTPUT:
		2161	RETVAL
966		2162
967	int set_re_delim(DB *db, int delim);	2163	int set_re_delim (DB *db, int delim)
		2164	CODE:
		2165	RETVAL = db->set_re_delim (db, delim);
		2166	OUTPUT:
		2167	RETVAL
968		2168
969	int set_re_pad (DB *db, int re_pad)	2169	int set_re_pad (DB *db, int re_pad)
		2170	CODE:
		2171	RETVAL = db->set_re_pad (db, re_pad);
		2172	OUTPUT:
		2173	RETVAL
970		2174
971	int set_re_source (DB *db, char *source)	2175	int set_re_source (DB *db, char *source)
		2176	CODE:
		2177	RETVAL = db->set_re_source (db, source);
		2178	OUTPUT:
		2179	RETVAL
972		2180
973	int set_re_len (DB *db, U32 re_len)	2181	int set_re_len (DB *db, U32 re_len)
		2182	CODE:
		2183	RETVAL = db->set_re_len (db, re_len);
		2184	OUTPUT:
		2185	RETVAL
974		2186
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2187	int set_h_ffactor (DB *db, U32 h_ffactor)
		2188	CODE:
		2189	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2190	OUTPUT:
		2191	RETVAL
976		2192
977	int set_h_nelem (DB *db, U32 h_nelem)	2193	int set_h_nelem (DB *db, U32 h_nelem)
		2194	CODE:
		2195	RETVAL = db->set_h_nelem (db, h_nelem);
		2196	OUTPUT:
		2197	RETVAL
978		2198
979	int set_q_extentsize (DB *db, U32 extentsize)	2199	int set_q_extentsize (DB *db, U32 extentsize)
		2200	CODE:
		2201	RETVAL = db->set_q_extentsize (db, extentsize);
		2202	OUTPUT:
		2203	RETVAL
980		2204
		2205	DBC *
		2206	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2207	CODE:
		2208	errno = db->cursor (db, txn, &RETVAL, flags);
		2209	if (errno)
		2210	croak ("DB->cursor: %s", db_strerror (errno));
		2211	OUTPUT:
		2212	RETVAL
981		2213
		2214	DB_SEQUENCE *
		2215	sequence (DB *db, U32 flags = 0)
		2216	CODE:
		2217	{
		2218	errno = db_sequence_create (&RETVAL, db, flags);
		2219	if (errno)
		2220	croak ("db_sequence_create: %s", db_strerror (errno));
		2221	}
		2222	OUTPUT:
		2223	RETVAL
		2224
		2225
		2226	MODULE = BDB PACKAGE = BDB::Txn
		2227
		2228	void
		2229	DESTROY (DB_TXN_ornuked *txn)
		2230	CODE:
		2231	if (txn)
		2232	txn->abort (txn);
		2233
		2234	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2235	CODE:
		2236	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2237	OUTPUT:
		2238	RETVAL
		2239
		2240	int failed (DB_TXN *txn)
		2241	CODE:
		2242	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2243	OUTPUT:
		2244	RETVAL
		2245
		2246
		2247	MODULE = BDB PACKAGE = BDB::Cursor
		2248
		2249	void
		2250	DESTROY (DBC_ornuked *dbc)
		2251	CODE:
		2252	if (dbc)
		2253	dbc->c_close (dbc);
		2254
		2255	#if DB_VERSION_MINOR >= 6
		2256
		2257	int set_priority (DBC *dbc, int priority)
		2258	CODE:
		2259	dbc->set_priority (dbc, priority);
		2260
		2261	#endif
		2262
		2263	MODULE = BDB PACKAGE = BDB::Sequence
		2264
		2265	void
		2266	DESTROY (DB_SEQUENCE_ornuked *seq)
		2267	CODE:
		2268	if (seq)
		2269	seq->close (seq, 0);
		2270
		2271	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2272	CODE:
		2273	RETVAL = seq->initial_value (seq, value);
		2274	OUTPUT:
		2275	RETVAL
		2276
		2277	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2278	CODE:
		2279	RETVAL = seq->set_cachesize (seq, size);
		2280	OUTPUT:
		2281	RETVAL
		2282
		2283	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2284	CODE:
		2285	RETVAL = seq->set_flags (seq, flags);
		2286	OUTPUT:
		2287	RETVAL
		2288
		2289	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2290	CODE:
		2291	RETVAL = seq->set_range (seq, min, max);
		2292	OUTPUT:
		2293	RETVAL
		2294
		2295

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