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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 1.38 by root, Wed May 21 19:13:43 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,
		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;
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 (SvOK (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	{
272	free (req->buf1);	416	free (req->buf1);
273	free (req->buf2);	417	free (req->buf2);
274	Safefree (req);	418	Safefree (req);
275	}	419	}
276		420
277	static void *aio_proc(void *arg);	421	#ifdef USE_SOCKETS_AS_HANDLES
		422	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		423	#else
		424	# define TO_SOCKET(x) (x)
		425	#endif
		426
		427	static void
		428	create_respipe (void)
		429	{
		430	#ifdef _WIN32
		431	int arg; /* argg */
		432	#endif
		433	int old_readfd = respipe [0];
		434
		435	if (respipe [1] >= 0)
		436	respipe_close (TO_SOCKET (respipe [1]));
		437
		438	#ifdef _WIN32
		439	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		440	#else
		441	if (pipe (respipe))
		442	#endif
		443	croak ("unable to initialize result pipe");
		444
		445	if (old_readfd >= 0)
		446	{
		447	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		448	croak ("unable to initialize result pipe(2)");
		449
		450	respipe_close (respipe [0]);
		451	respipe [0] = old_readfd;
		452	}
		453
		454	#ifdef _WIN32
		455	arg = 1;
		456	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		457	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		458	#else
		459	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		460	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		461	#endif
		462	croak ("unable to initialize result pipe(3)");
		463
		464	respipe_osf [0] = TO_SOCKET (respipe [0]);
		465	respipe_osf [1] = TO_SOCKET (respipe [1]);
		466	}
		467
		468	X_THREAD_PROC (bdb_proc);
278		469
279	static void start_thread (void)	470	static void start_thread (void)
280	{	471	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	472	worker *wrk = calloc (1, sizeof (worker));
285		473
286	if (!wrk)	474	if (!wrk)
287	croak ("unable to allocate worker thread data");	475	croak ("unable to allocate worker thread data");
288		476
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);	477	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	478	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	479	{
302	wrk->prev = &wrk_first;	480	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	481	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	482	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	483	wrk_first.next = wrk;
306	++started;	484	++started;
307	}	485	}
308	else	486	else
309	free (wrk);	487	free (wrk);
310		488
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	489	X_UNLOCK (wrklock);
313	}	490	}
314		491
315	static void maybe_start_thread ()	492	static void maybe_start_thread (void)
316	{	493	{
317	if (get_nthreads () >= wanted)	494	if (get_nthreads () >= wanted)
318	return;	495	return;
319		496
320	/* todo: maybe use idle here, but might be less exact */	497	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	499	return;
323		500
324	start_thread ();	501	start_thread ();
325	}	502	}
326		503
327	static void req_send (aio_req req)	504	static void req_send (bdb_req req)
328	{	505	{
		506	SV *wait_callback = 0;
		507
		508	if (on_next_submit)
		509	{
		510	dSP;
		511	SV *cb = sv_2mortal (on_next_submit);
		512
		513	on_next_submit = 0;
		514
		515	PUSHMARK (SP);
		516	PUTBACK;
		517	call_sv (cb, G_DISCARD | G_EVAL);
		518	}
		519
		520	// synthesize callback if none given
		521	if (!SvOK (req->callback))
		522	{
		523	int count;
		524
		525	dSP;
		526	PUSHMARK (SP);
		527	PUTBACK;
		528	count = call_sv (prepare_cb, G_ARRAY);
		529	SPAGAIN;
		530
		531	if (count != 2)
		532	croak ("prepare callback must return exactly two values\n");
		533
		534	wait_callback = POPs;
		535	SvREFCNT_dec (req->callback);
		536	req->callback = SvREFCNT_inc (POPs);
		537	}
		538
329	++nreqs;	539	++nreqs;
330		540
331	LOCK (reqlock);	541	X_LOCK (reqlock);
332	++nready;	542	++nready;
333	reqq_push (&req_queue, req);	543	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	544	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	545	X_UNLOCK (reqlock);
336		546
337	maybe_start_thread ();	547	maybe_start_thread ();
		548
		549	if (wait_callback)
		550	{
		551	dSP;
		552	PUSHMARK (SP);
		553	PUTBACK;
		554	call_sv (wait_callback, G_DISCARD);
		555	}
338	}	556	}
339		557
340	static void end_thread (void)	558	static void end_thread (void)
341	{	559	{
342	aio_req req;	560	bdb_req req;
343		561
344	Newz (0, req, 1, aio_cb);	562	Newz (0, req, 1, bdb_cb);
345		563
346	req->type = REQ_QUIT;	564	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	565	req->pri = PRI_MAX + PRI_BIAS;
348		566
349	LOCK (reqlock);	567	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	568	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	569	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	570	X_UNLOCK (reqlock);
353		571
354	LOCK (wrklock);	572	X_LOCK (wrklock);
355	--started;	573	--started;
356	UNLOCK (wrklock);	574	X_UNLOCK (wrklock);
357	}	575	}
358		576
359	static void set_max_idle (int nthreads)	577	static void set_max_idle (int nthreads)
360	{	578	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	579	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	580	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	581	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	582	}
365		583
366	static void min_parallel (int nthreads)	584	static void min_parallel (int nthreads)
367	{	585	{
368	if (wanted < nthreads)	586	if (wanted < nthreads)
…		…
376		594
377	while (started > wanted)	595	while (started > wanted)
378	end_thread ();	596	end_thread ();
379	}	597	}
380		598
381	static void poll_wait ()	599	static void poll_wait (void)
382	{	600	{
383	fd_set rfd;	601	fd_set rfd;
384		602
385	while (nreqs)	603	while (nreqs)
386	{	604	{
387	int size;	605	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	606	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	607	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	608	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		609
392	if (size)	610	if (size)
393	return;	611	return;
394		612
395	maybe_start_thread ();	613	maybe_start_thread ();
396		614
397	FD_ZERO(&rfd);	615	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	616	FD_SET (respipe [0], &rfd);
399		617
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	618	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	619	}
402	}	620	}
403		621
404	static int poll_cb ()	622	static int poll_cb (void)
405	{	623	{
406	dSP;	624	dSP;
407	int count = 0;	625	int count = 0;
408	int maxreqs = max_poll_reqs;	626	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	627	int do_croak = 0;
410	struct timeval tv_start, tv_now;	628	struct timeval tv_start, tv_now;
411	aio_req req;	629	bdb_req req;
412		630
413	if (max_poll_time)	631	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	632	gettimeofday (&tv_start, 0);
415		633
416	for (;;)	634	for (;;)
417	{	635	{
418	for (;;)	636	for (;;)
419	{	637	{
420	maybe_start_thread ();	638	maybe_start_thread ();
421		639
422	LOCK (reslock);	640	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	641	req = reqq_shift (&res_queue);
424		642
425	if (req)	643	if (req)
426	{	644	{
427	--npending;	645	--npending;
428		646
429	if (!res_queue.size)	647	if (!res_queue.size)
430	{	648	{
431	/* read any signals sent by the worker threads */	649	/* read any signals sent by the worker threads */
432	char buf [4];	650	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	651	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	652	;
435	}	653	}
436	}	654	}
437		655
438	UNLOCK (reslock);	656	X_UNLOCK (reslock);
439		657
440	if (!req)	658	if (!req)
441	break;	659	break;
442		660
443	--nreqs;	661	--nreqs;
…		…
473	}	691	}
474		692
475	return count;	693	return count;
476	}	694	}
477		695
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	/*****************************************************************************/	696	/*****************************************************************************/
491		697
492	static void *aio_proc (void *thr_arg)	698	X_THREAD_PROC (bdb_proc)
493	{	699	{
494	aio_req req;	700	bdb_req req;
495	struct timespec ts;	701	struct timespec ts;
496	worker *self = (worker *)thr_arg;	702	worker *self = (worker *)thr_arg;
497		703
498	/* try to distribute timeouts somewhat evenly */	704	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	705	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		706
502	for (;;)	707	for (;;)
503	{	708	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	709	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		710
506	LOCK (reqlock);	711	X_LOCK (reqlock);
507		712
508	for (;;)	713	for (;;)
509	{	714	{
510	self->req = req = reqq_shift (&req_queue);	715	self->req = req = reqq_shift (&req_queue);
511		716
512	if (req)	717	if (req)
513	break;	718	break;
514		719
515	++idle;	720	++idle;
516		721
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	722	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	723	== ETIMEDOUT)
519	{	724	{
520	if (idle > max_idle)	725	if (idle > max_idle)
521	{	726	{
522	--idle;	727	--idle;
523	UNLOCK (reqlock);	728	X_UNLOCK (reqlock);
524	LOCK (wrklock);	729	X_LOCK (wrklock);
525	--started;	730	--started;
526	UNLOCK (wrklock);	731	X_UNLOCK (wrklock);
527	goto quit;	732	goto quit;
528	}	733	}
529		734
530	/* we are allowed to idle, so do so without any timeout */	735	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	736	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	737	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	738	}
534		739
535	--idle;	740	--idle;
536	}	741	}
537		742
538	--nready;	743	--nready;
539		744
540	UNLOCK (reqlock);	745	X_UNLOCK (reqlock);
541		746
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	747	switch (req->type)
545	{	748	{
546	case REQ_QUIT:	749	case REQ_QUIT:
		750	req->result = ENOSYS;
547	goto quit;	751	goto quit;
548		752
		753	case REQ_ENV_OPEN:
		754	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		755	break;
		756
		757	case REQ_ENV_CLOSE:
		758	req->result = req->env->close (req->env, req->uint1);
		759	break;
		760
		761	case REQ_ENV_TXN_CHECKPOINT:
		762	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		763	break;
		764
		765	case REQ_ENV_LOCK_DETECT:
		766	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		767	break;
		768
		769	case REQ_ENV_MEMP_SYNC:
		770	req->result = req->env->memp_sync (req->env, 0);
		771	break;
		772
		773	case REQ_ENV_MEMP_TRICKLE:
		774	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		775	break;
		776
		777	case REQ_DB_OPEN:
		778	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		779	break;
		780
		781	case REQ_DB_CLOSE:
		782	req->result = req->db->close (req->db, req->uint1);
		783	break;
		784
		785	case REQ_DB_COMPACT:
		786	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		787	break;
		788
		789	case REQ_DB_SYNC:
		790	req->result = req->db->sync (req->db, req->uint1);
		791	break;
		792
		793	case REQ_DB_UPGRADE:
		794	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		795	break;
		796
		797	case REQ_DB_PUT:
		798	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		799	break;
		800
		801	case REQ_DB_GET:
		802	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		803	break;
		804
		805	case REQ_DB_PGET:
		806	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		807	break;
		808
		809	case REQ_DB_DEL:
		810	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		811	break;
		812
		813	case REQ_DB_KEY_RANGE:
		814	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		815	break;
		816
		817	case REQ_TXN_COMMIT:
		818	req->result = req->txn->commit (req->txn, req->uint1);
		819	break;
		820
		821	case REQ_TXN_ABORT:
		822	req->result = req->txn->abort (req->txn);
		823	break;
		824
		825	case REQ_TXN_FINISH:
		826	if (req->txn->flags & TXN_DEADLOCK)
		827	{
		828	req->result = req->txn->abort (req->txn);
		829	if (!req->result)
		830	req->result = DB_LOCK_DEADLOCK;
		831	}
		832	else
		833	req->result = req->txn->commit (req->txn, req->uint1);
		834	break;
		835
		836	case REQ_C_CLOSE:
		837	req->result = req->dbc->c_close (req->dbc);
		838	break;
		839
		840	case REQ_C_COUNT:
		841	{
		842	db_recno_t recno;
		843	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		844	req->uv1 = recno;
		845	}
		846	break;
		847
		848	case REQ_C_PUT:
		849	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		850	break;
		851
		852	case REQ_C_GET:
		853	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		854	break;
		855
		856	case REQ_C_PGET:
		857	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		858	break;
		859
		860	case REQ_C_DEL:
		861	req->result = req->dbc->c_del (req->dbc, req->uint1);
		862	break;
		863
		864	case REQ_SEQ_OPEN:
		865	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		866	break;
		867
		868	case REQ_SEQ_CLOSE:
		869	req->result = req->seq->close (req->seq, req->uint1);
		870	break;
		871
		872	case REQ_SEQ_GET:
		873	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		874	break;
		875
		876	case REQ_SEQ_REMOVE:
		877	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		878	break;
		879
549	default:	880	default:
550	//req->result = ENOSYS;	881	req->result = ENOSYS;
551	break;	882	break;
552	}	883	}
553		884
554	//req->errorno = errno;	885	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		886	req->txn->flags |= TXN_DEADLOCK;
555		887
556	LOCK (reslock);	888	X_LOCK (reslock);
557		889
558	++npending;	890	++npending;
559		891
560	if (!reqq_push (&res_queue, req))	892	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	893	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	894	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		895
564	self->req = 0;	896	self->req = 0;
565	worker_clear (self);	897	worker_clear (self);
566		898
567	UNLOCK (reslock);	899	X_UNLOCK (reslock);
568	}	900	}
569		901
570	quit:	902	quit:
571	LOCK (wrklock);	903	X_LOCK (wrklock);
572	worker_free (self);	904	worker_free (self);
573	UNLOCK (wrklock);	905	X_UNLOCK (wrklock);
574		906
575	return 0;	907	return 0;
576	}	908	}
577		909
578	/*****************************************************************************/	910	/*****************************************************************************/
579		911
580	static void atfork_prepare (void)	912	static void atfork_prepare (void)
581	{	913	{
582	LOCK (wrklock);	914	X_LOCK (wrklock);
583	LOCK (reqlock);	915	X_LOCK (reqlock);
584	LOCK (reslock);	916	X_LOCK (reslock);
585	}	917	}
586		918
587	static void atfork_parent (void)	919	static void atfork_parent (void)
588	{	920	{
589	UNLOCK (reslock);	921	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	922	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	923	X_UNLOCK (wrklock);
592	}	924	}
593		925
594	static void atfork_child (void)	926	static void atfork_child (void)
595	{	927	{
596	aio_req prv;	928	bdb_req prv;
597		929
598	while (prv = reqq_shift (&req_queue))	930	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	931	req_free (prv);
600		932
601	while (prv = reqq_shift (&res_queue))	933	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	948	idle = 0;
617	nreqs = 0;	949	nreqs = 0;
618	nready = 0;	950	nready = 0;
619	npending = 0;	951	npending = 0;
620		952
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	953	create_respipe ();
624		954
625	atfork_parent ();	955	atfork_parent ();
626	}	956	}
627		957
628	#define dREQ(reqtype) \	958	#define dREQ(reqtype) \
629	aio_req req; \	959	bdb_req req; \
630	int req_pri = next_pri; \	960	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	961	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	962	\
633	if (SvOK (callback) && !SvROK (callback)) \	963	if (SvOK (callback) && !SvROK (callback)) \
634	croak ("callback must be undef or of reference type"); \	964	croak ("callback must be undef or of reference type"); \
635	\	965	\
636	Newz (0, req, 1, aio_cb); \	966	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	967	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	968	croak ("out of memory during bdb_req allocation"); \
639	\	969	\
640	req->callback = newSVsv (callback); \	970	req->callback = newSVsv (callback); \
641	req->type = (reqtype); \	971	req->type = (reqtype); \
642	req->pri = req_pri	972	req->pri = req_pri
643		973
644	#define REQ_SEND \	974	#define REQ_SEND \
645	req_send (req)	975	req_send (req)
646		976
647	#define SvPTR(var, arg, type, class) \	977	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	978	if (!SvOK (arg)) \
		979	{ \
		980	if (nullok != 1) \
		981	croak (# var " must be a " # class " object, not undef"); \
		982	\
649	(var) = 0; \	983	(var) = 0; \
		984	} \
650	else if (sv_derived_from ((arg), # class)) \	985	else if (sv_derived_from ((arg), # class)) \
651	{ \	986	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	987	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	988	(var) = INT2PTR (type, tmp); \
		989	if (!var && nullok != 2) \
		990	croak (# var " is not a valid " # class " object anymore"); \
654	} \	991	} \
655	else \	992	else \
656	Perl_croak (# var " is not of type " # type)	993	croak (# var " is not of type " # class); \
657		994	\
		995
		996	static void
		997	ptr_nuke (SV *sv)
		998	{
		999	assert (SvROK (sv));
		1000	sv_setiv (SvRV (sv), 0);
		1001	}
		1002
		1003	static int
		1004	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1005	{
		1006	if (*mg->mg_ptr == '!') // should always be the case
		1007	if (-30999 <= errno && errno <= -30800)
		1008	{
		1009	sv_setnv (sv, (NV)errno);
		1010	sv_setpv (sv, db_strerror (errno));
		1011	SvNOK_on (sv); /* what a wonderful hack! */
		1012	// ^^^ copied from perl sources
		1013	return 0;
		1014	}
		1015
		1016	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1017	}
		1018
		1019	static MGVTBL vtbl_errno;
		1020
		1021	// this wonderful hack :( patches perl's $! variable to support our errno values
		1022	static void
		1023	patch_errno (void)
		1024	{
		1025	SV *sv;
		1026	MAGIC *mg;
		1027
		1028	if (!(sv = get_sv ("!", 1)))
		1029	return;
		1030
		1031	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1032	return;
		1033
		1034	if (mg->mg_virtual != &PL_vtbl_sv)
		1035	return;
		1036
		1037	vtbl_errno = PL_vtbl_sv;
		1038	vtbl_errno.svt_get = errno_get;
		1039	mg->mg_virtual = &vtbl_errno;
		1040	}
		1041
658	MODULE = BDB PACKAGE = BDB	1042	MODULE = BDB PACKAGE = BDB
659		1043
660	PROTOTYPES: ENABLE	1044	PROTOTYPES: ENABLE
661		1045
662	BOOT:	1046	BOOT:
…		…
677	const_iv (INIT_TXN)	1061	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1062	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1063	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1064	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1065	const_iv (CREATE)
		1066	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1067	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1068	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1069	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1070	const_iv (PRIVATE)
686	const_iv (REGISTER)	1071	const_iv (REGISTER)
…		…
692	const_iv (DSYNC_DB)	1077	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)	1078	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)	1079	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)	1080	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1081	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1082	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1083	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1084	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1085	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1086	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1087	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1088	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1089	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1090	const_iv (TXN_WRITE_NOSYNC)
		1091	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1092	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1093	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1094	const_iv (XA_CREATE)
710	const_iv (BTREE)	1095	const_iv (BTREE)
711	const_iv (HASH)	1096	const_iv (HASH)
712	const_iv (QUEUE)	1097	const_iv (QUEUE)
713	const_iv (RECNO)	1098	const_iv (RECNO)
714	const_iv (UNKNOWN)	1099	const_iv (UNKNOWN)
715	const_iv (EXCL)	1100	const_iv (EXCL)
		1101	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	1102	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1103	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1104	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1105	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1106	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1107	const_iv (DUP)
723	const_iv (DUPSORT)	1108	const_iv (DUPSORT)
724	const_iv (RECNUM)	1109	const_iv (RECNUM)
725	const_iv (RENUMBER)	1110	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1111	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	1112	const_iv (INORDER)
728	const_iv (CONSUME)	1113	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1114	const_iv (CONSUME_WAIT)
		1115	const_iv (GET_BOTH)
		1116	const_iv (GET_BOTH_RANGE)
		1117	//const_iv (SET_RECNO)
		1118	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1119	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1120	const_iv (JOIN_ITEM)
		1121	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1122	const_iv (RMW)
733		1123
734	const_iv (NOTFOUND)	1124	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1125	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1126	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1127	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1128	const_iv (RUNRECOVERY)
		1129	const_iv (OLD_VERSION)
		1130	const_iv (REP_HANDLE_DEAD)
		1131	const_iv (REP_LOCKOUT)
		1132	const_iv (SECONDARY_BAD)
		1133
		1134	const_iv (FREE_SPACE)
		1135	const_iv (FREELIST_ONLY)
		1136
		1137	const_iv (APPEND)
		1138	const_iv (NODUPDATA)
		1139	const_iv (NOOVERWRITE)
		1140
		1141	const_iv (TXN_NOWAIT)
		1142	const_iv (TXN_SYNC)
		1143
		1144	const_iv (SET_LOCK_TIMEOUT)
		1145	const_iv (SET_TXN_TIMEOUT)
		1146
		1147	const_iv (FIRST)
		1148	const_iv (NEXT)
		1149	const_iv (NEXT_DUP)
		1150	const_iv (NEXT_NODUP)
		1151	const_iv (PREV)
		1152	const_iv (PREV_NODUP)
		1153	const_iv (SET)
		1154	const_iv (SET_RANGE)
		1155	const_iv (LAST)
		1156	const_iv (BEFORE)
		1157	const_iv (AFTER)
		1158	const_iv (CURRENT)
		1159	const_iv (KEYFIRST)
		1160	const_iv (KEYLAST)
		1161	const_iv (NODUPDATA)
		1162
		1163	const_iv (FORCE)
		1164
		1165	const_iv (LOCK_DEFAULT)
		1166	const_iv (LOCK_EXPIRE)
		1167	const_iv (LOCK_MAXLOCKS)
		1168	const_iv (LOCK_MAXWRITE)
		1169	const_iv (LOCK_MINLOCKS)
		1170	const_iv (LOCK_MINWRITE)
		1171	const_iv (LOCK_OLDEST)
		1172	const_iv (LOCK_RANDOM)
		1173	const_iv (LOCK_YOUNGEST)
		1174
		1175	const_iv (SEQ_DEC)
		1176	const_iv (SEQ_INC)
		1177	const_iv (SEQ_WRAP)
		1178
		1179	const_iv (BUFFER_SMALL)
		1180	const_iv (DONOTINDEX)
		1181	const_iv (KEYEMPTY )
		1182	const_iv (KEYEXIST )
		1183	const_iv (LOCK_DEADLOCK)
		1184	const_iv (LOCK_NOTGRANTED)
		1185	const_iv (LOG_BUFFER_FULL)
		1186	const_iv (NOSERVER)
		1187	const_iv (NOSERVER_HOME)
		1188	const_iv (NOSERVER_ID)
		1189	const_iv (NOTFOUND)
		1190	const_iv (PAGE_NOTFOUND)
		1191	const_iv (REP_DUPMASTER)
		1192	const_iv (REP_HANDLE_DEAD)
		1193	const_iv (REP_HOLDELECTION)
		1194	const_iv (REP_IGNORE)
		1195	const_iv (REP_ISPERM)
		1196	const_iv (REP_JOIN_FAILURE)
		1197	const_iv (REP_LOCKOUT)
		1198	const_iv (REP_NEWMASTER)
		1199	const_iv (REP_NEWSITE)
		1200	const_iv (REP_NOTPERM)
		1201	const_iv (REP_UNAVAIL)
		1202	const_iv (RUNRECOVERY)
		1203	const_iv (SECONDARY_BAD)
		1204	const_iv (VERIFY_BAD)
		1205	const_iv (VERSION_MISMATCH)
		1206
		1207	const_iv (VERB_DEADLOCK)
		1208	const_iv (VERB_RECOVERY)
		1209	const_iv (VERB_REGISTER)
		1210	const_iv (VERB_REPLICATION)
		1211	const_iv (VERB_WAITSFOR)
		1212
		1213	const_iv (VERSION_MAJOR)
		1214	const_iv (VERSION_MINOR)
		1215	const_iv (VERSION_PATCH)
		1216	#if DB_VERSION_MINOR >= 5
		1217	const_iv (MULTIVERSION)
		1218	const_iv (TXN_SNAPSHOT)
		1219	#endif
		1220	#if DB_VERSION_MINOR >= 6
		1221	const_iv (PREV_DUP)
		1222	const_iv (PRIORITY_UNCHANGED)
		1223	const_iv (PRIORITY_VERY_LOW)
		1224	const_iv (PRIORITY_LOW)
		1225	const_iv (PRIORITY_DEFAULT)
		1226	const_iv (PRIORITY_HIGH)
		1227	const_iv (PRIORITY_VERY_HIGH)
		1228	#endif
739	};	1229	};
740		1230
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1231	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1232	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1233
744	create_pipe ();	1234	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1235	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1236
		1237	create_respipe ();
		1238
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1239	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1240	patch_errno ();
746	}	1241	}
747		1242
748	void	1243	void
749	max_poll_reqs (int nreqs)	1244	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1245	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1274	max_outstanding = maxreqs;
780	OUTPUT:	1275	OUTPUT:
781	RETVAL	1276	RETVAL
782		1277
783	int	1278	int
784	bdbreq_pri (int pri = 0)	1279	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1280	PROTOTYPE: ;$
786	CODE:	1281	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1282	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1283	if (items > 0)
789	{	1284	{
…		…
793	}	1288	}
794	OUTPUT:	1289	OUTPUT:
795	RETVAL	1290	RETVAL
796		1291
797	void	1292	void
798	bdbreq_nice (int nice = 0)	1293	dbreq_nice (int nice = 0)
799	CODE:	1294	CODE:
800	nice = next_pri - nice;	1295	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1296	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1297	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1298	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1306	poll_wait ();
812	poll_cb ();	1307	poll_cb ();
813	}	1308	}
814		1309
815	int	1310	int
816	poll()	1311	poll ()
817	PROTOTYPE:	1312	PROTOTYPE:
818	CODE:	1313	CODE:
819	poll_wait ();	1314	poll_wait ();
820	RETVAL = poll_cb ();	1315	RETVAL = poll_cb ();
821	OUTPUT:	1316	OUTPUT:
822	RETVAL	1317	RETVAL
823		1318
824	int	1319	int
825	poll_fileno()	1320	poll_fileno ()
826	PROTOTYPE:	1321	PROTOTYPE:
827	CODE:	1322	CODE:
828	RETVAL = respipe [0];	1323	RETVAL = respipe [0];
829	OUTPUT:	1324	OUTPUT:
830	RETVAL	1325	RETVAL
831		1326
832	int	1327	int
833	poll_cb(...)	1328	poll_cb (...)
834	PROTOTYPE:	1329	PROTOTYPE:
835	CODE:	1330	CODE:
836	RETVAL = poll_cb ();	1331	RETVAL = poll_cb ();
837	OUTPUT:	1332	OUTPUT:
838	RETVAL	1333	RETVAL
839		1334
840	void	1335	void
841	poll_wait()	1336	poll_wait ()
842	PROTOTYPE:	1337	PROTOTYPE:
843	CODE:	1338	CODE:
844	poll_wait ();	1339	poll_wait ();
845		1340
846	int	1341	int
847	nreqs()	1342	nreqs ()
848	PROTOTYPE:	1343	PROTOTYPE:
849	CODE:	1344	CODE:
850	RETVAL = nreqs;	1345	RETVAL = nreqs;
851	OUTPUT:	1346	OUTPUT:
852	RETVAL	1347	RETVAL
853		1348
854	int	1349	int
855	nready()	1350	nready ()
856	PROTOTYPE:	1351	PROTOTYPE:
857	CODE:	1352	CODE:
858	RETVAL = get_nready ();	1353	RETVAL = get_nready ();
859	OUTPUT:	1354	OUTPUT:
860	RETVAL	1355	RETVAL
861		1356
862	int	1357	int
863	npending()	1358	npending ()
864	PROTOTYPE:	1359	PROTOTYPE:
865	CODE:	1360	CODE:
866	RETVAL = get_npending ();	1361	RETVAL = get_npending ();
867	OUTPUT:	1362	OUTPUT:
868	RETVAL	1363	RETVAL
869		1364
870	int	1365	int
871	nthreads()	1366	nthreads ()
872	PROTOTYPE:	1367	PROTOTYPE:
873	CODE:	1368	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1369	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1370	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1371	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1372	OUTPUT:
878	RETVAL	1373	RETVAL
879		1374
		1375	void
		1376	set_sync_prepare (SV *cb)
		1377	PROTOTYPE: &
		1378	CODE:
		1379	SvREFCNT_dec (prepare_cb);
		1380	prepare_cb = newSVsv (cb);
		1381
		1382	char *
		1383	strerror (int errorno = errno)
		1384	PROTOTYPE: ;$
		1385	CODE:
		1386	RETVAL = db_strerror (errorno);
		1387	OUTPUT:
		1388	RETVAL
		1389
		1390	void _on_next_submit (SV *cb)
		1391	CODE:
		1392	SvREFCNT_dec (on_next_submit);
		1393	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1394
880	DB_ENV *	1395	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1396	db_env_create (U32 env_flags = 0)
882	CODE:	1397	CODE:
883	{	1398	{
884	int err = db_env_create (&RETVAL, env_flags);	1399	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1400	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1401	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1402
		1403	if (0)
		1404	{
		1405	RETVAL->set_errcall (RETVAL, debug_errcall);
		1406	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1407	}
		1408	}
		1409	OUTPUT:
		1410	RETVAL
		1411
889	void	1412	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1413	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1414	CODE:
892	{	1415	{
893	dREQ (REQ_ENV_OPEN);	1416	dREQ (REQ_ENV_OPEN);
		1417
894	req->env = env;	1418	req->env = env;
895	req->uint1 = open_flags;	1419	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1420	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1421	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1422	REQ_SEND;
899	}	1423	}
900		1424
901	void	1425	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1426	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1427	CODE:
904	{	1428	{
905	dREQ (REQ_ENV_CLOSE);	1429	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1430	req->env = env;
907	req->uint1 = flags;	1431	req->uint1 = flags;
908	REQ_SEND;	1432	REQ_SEND;
		1433	ptr_nuke (ST (0));
909	}	1434	}
		1435
		1436	void
		1437	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1438	CODE:
		1439	{
		1440	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1441	req->env = env;
		1442	req->uint1 = kbyte;
		1443	req->int1 = min;
		1444	req->uint2 = flags;
		1445	REQ_SEND;
		1446	}
		1447
		1448	void
		1449	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1450	CODE:
		1451	{
		1452	dREQ (REQ_ENV_LOCK_DETECT);
		1453	req->env = env;
		1454	req->uint1 = flags;
		1455	req->uint2 = atype;
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
		1460	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1461	CODE:
		1462	{
		1463	dREQ (REQ_ENV_MEMP_SYNC);
		1464	req->env = env;
		1465	REQ_SEND;
		1466	}
		1467
		1468	void
		1469	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1470	CODE:
		1471	{
		1472	dREQ (REQ_ENV_MEMP_TRICKLE);
		1473	req->env = env;
		1474	req->int1 = percent;
		1475	REQ_SEND;
		1476	}
		1477
910		1478
911	DB *	1479	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1480	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1481	CODE:
914	{	1482	{
915	int err = db_create (&RETVAL, env, flags);	1483	errno = db_create (&RETVAL, env, flags);
916	if (err)	1484	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1485	croak ("db_create: %s", db_strerror (errno));
918	}
919		1486
		1487	if (RETVAL)
		1488	RETVAL->app_private = (void *)newSVsv (ST (0));
		1489	}
		1490	OUTPUT:
		1491	RETVAL
		1492
920	void	1493	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)	1494	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
922	CODE:	1495	CODE:
923	{	1496	{
924	dREQ (REQ_DB_OPEN);	1497	dREQ (REQ_DB_OPEN);
925	req->db = db;	1498	req->db = db;
926	req->txn = txnid;	1499	req->txn = txnid;
927	req->buf1 = strdup (file);	1500	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1501	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1502	req->int1 = type;
930	req->uint1 = flags;	1503	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1504	req->int2 = mode;
932	REQ_SEND;	1505	REQ_SEND;
933	}	1506	}
934		1507
935	void	1508	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1509	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1510	CODE:
938	{	1511	{
939	dREQ (REQ_DB_CLOSE);	1512	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1513	req->db = db;
941	req->uint1 = flags;	1514	req->uint1 = flags;
		1515	req->sv1 = (SV *)db->app_private;
		1516	REQ_SEND;
		1517	ptr_nuke (ST (0));
		1518	}
		1519
		1520	void
		1521	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 = &PL_sv_undef)
		1522	CODE:
		1523	{
		1524	dREQ (REQ_DB_COMPACT);
		1525	req->db = db;
		1526	req->txn = txn;
		1527	sv_to_dbt (&req->dbt1, start);
		1528	sv_to_dbt (&req->dbt2, stop);
		1529	req->uint1 = flags;
		1530	REQ_SEND;
		1531	}
		1532
		1533	void
		1534	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1535	CODE:
		1536	{
		1537	dREQ (REQ_DB_SYNC);
		1538	req->db = db;
		1539	req->uint1 = flags;
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
		1544	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1545	CODE:
		1546	{
		1547	dREQ (REQ_DB_SYNC);
		1548	req->db = db;
		1549	req->buf1 = strdup (file);
		1550	req->uint1 = flags;
		1551	REQ_SEND;
		1552	}
		1553
		1554	void
		1555	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1556	CODE:
		1557	{
		1558	dREQ (REQ_DB_KEY_RANGE);
		1559	req->db = db;
		1560	req->txn = txn;
		1561	sv_to_dbt (&req->dbt1, key);
		1562	req->uint1 = flags;
		1563	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1564	REQ_SEND;
		1565	}
		1566
		1567	void
		1568	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1569	CODE:
		1570	{
		1571	dREQ (REQ_DB_PUT);
		1572	req->db = db;
		1573	req->txn = txn;
		1574	sv_to_dbt (&req->dbt1, key);
		1575	sv_to_dbt (&req->dbt2, data);
		1576	req->uint1 = flags;
		1577	REQ_SEND;
		1578	}
		1579
		1580	void
		1581	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1582	CODE:
		1583	if (SvREADONLY (data))
		1584	croak ("can't modify read-only data scalar in db_get");
		1585	{
		1586	dREQ (REQ_DB_GET);
		1587	req->db = db;
		1588	req->txn = txn;
		1589	req->uint1 = flags;
		1590	sv_to_dbt (&req->dbt1, key);
		1591	req->dbt3.flags = DB_DBT_MALLOC;
		1592	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1593	REQ_SEND;
		1594	}
		1595
		1596	void
		1597	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1598	CODE:
		1599	if (SvREADONLY (data))
		1600	croak ("can't modify read-only data scalar in db_pget");
		1601	{
		1602	dREQ (REQ_DB_PGET);
		1603	req->db = db;
		1604	req->txn = txn;
		1605	req->uint1 = flags;
		1606	sv_to_dbt (&req->dbt1, key);
		1607	sv_to_dbt (&req->dbt2, pkey);
		1608	req->dbt3.flags = DB_DBT_MALLOC;
		1609	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1610	REQ_SEND;
		1611	}
		1612
		1613	void
		1614	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1615	CODE:
		1616	{
		1617	dREQ (REQ_DB_DEL);
		1618	req->db = db;
		1619	req->txn = txn;
		1620	req->uint1 = flags;
		1621	sv_to_dbt (&req->dbt1, key);
		1622	REQ_SEND;
		1623	}
		1624
		1625	void
		1626	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1627	CODE:
		1628	{
		1629	dREQ (REQ_TXN_COMMIT);
		1630	req->txn = txn;
		1631	req->uint1 = flags;
		1632	REQ_SEND;
		1633	ptr_nuke (ST (0));
		1634	}
		1635
		1636	void
		1637	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1638	CODE:
		1639	{
		1640	dREQ (REQ_TXN_ABORT);
		1641	req->txn = txn;
		1642	REQ_SEND;
		1643	ptr_nuke (ST (0));
		1644	}
		1645
		1646	void
		1647	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1648	CODE:
		1649	{
		1650	dREQ (REQ_TXN_FINISH);
		1651	req->txn = txn;
		1652	req->uint1 = flags;
		1653	REQ_SEND;
		1654	ptr_nuke (ST (0));
		1655	}
		1656
		1657	void
		1658	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1659	CODE:
		1660	{
		1661	dREQ (REQ_C_CLOSE);
		1662	req->dbc = dbc;
		1663	REQ_SEND;
		1664	ptr_nuke (ST (0));
		1665	}
		1666
		1667	void
		1668	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1669	CODE:
		1670	{
		1671	dREQ (REQ_C_COUNT);
		1672	req->dbc = dbc;
		1673	req->sv1 = SvREFCNT_inc (count);
		1674	REQ_SEND;
		1675	}
		1676
		1677	void
		1678	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1679	CODE:
		1680	{
		1681	dREQ (REQ_C_PUT);
		1682	req->dbc = dbc;
		1683	sv_to_dbt (&req->dbt1, key);
		1684	sv_to_dbt (&req->dbt2, data);
		1685	req->uint1 = flags;
		1686	REQ_SEND;
		1687	}
		1688
		1689	void
		1690	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1691	CODE:
		1692	{
		1693	dREQ (REQ_C_GET);
		1694	req->dbc = dbc;
		1695	req->uint1 = flags;
		1696	if ((flags & DB_SET) == DB_SET
		1697	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1698	sv_to_dbt (&req->dbt1, key);
		1699	else
		1700	req->dbt1.flags = DB_DBT_MALLOC;
		1701
		1702	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1703
		1704	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1705	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1706	sv_to_dbt (&req->dbt3, data);
		1707	else
		1708	req->dbt3.flags = DB_DBT_MALLOC;
		1709
		1710	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
		1715	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1716	CODE:
		1717	{
		1718	dREQ (REQ_C_PGET);
		1719	req->dbc = dbc;
		1720	req->uint1 = flags;
		1721	if ((flags & DB_SET) == DB_SET
		1722	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1723	sv_to_dbt (&req->dbt1, key);
		1724	else
		1725	req->dbt1.flags = DB_DBT_MALLOC;
		1726
		1727	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1728
		1729	req->dbt2.flags = DB_DBT_MALLOC;
		1730	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1731
		1732	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1733	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1734	sv_to_dbt (&req->dbt3, data);
		1735	else
		1736	req->dbt3.flags = DB_DBT_MALLOC;
		1737
		1738	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1739	REQ_SEND;
		1740	}
		1741
		1742	void
		1743	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1744	CODE:
		1745	{
		1746	dREQ (REQ_C_DEL);
		1747	req->dbc = dbc;
		1748	req->uint1 = flags;
		1749	REQ_SEND;
		1750	}
		1751
		1752
		1753	void
		1754	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1755	CODE:
		1756	{
		1757	dREQ (REQ_SEQ_OPEN);
		1758	req->seq = seq;
		1759	req->txn = txnid;
		1760	req->uint1 = flags | DB_THREAD;
		1761	sv_to_dbt (&req->dbt1, key);
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
		1766	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1767	CODE:
		1768	{
		1769	dREQ (REQ_SEQ_CLOSE);
		1770	req->seq = seq;
		1771	req->uint1 = flags;
		1772	REQ_SEND;
		1773	ptr_nuke (ST (0));
		1774	}
		1775
		1776	void
		1777	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
		1778	CODE:
		1779	{
		1780	dREQ (REQ_SEQ_GET);
		1781	req->seq = seq;
		1782	req->txn = txnid;
		1783	req->int1 = delta;
		1784	req->uint1 = flags;
		1785	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1786	REQ_SEND;
		1787	}
		1788
		1789	void
		1790	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1791	CODE:
		1792	{
		1793	dREQ (REQ_SEQ_REMOVE);
		1794	req->seq = seq;
		1795	req->txn = txnid;
		1796	req->uint1 = flags;
942	REQ_SEND;	1797	REQ_SEND;
943	}	1798	}
944		1799
945		1800
946	MODULE = BDB PACKAGE = BDB::Env	1801	MODULE = BDB PACKAGE = BDB::Env
947		1802
		1803	void
		1804	DESTROY (DB_ENV_ornuked *env)
		1805	CODE:
		1806	if (env)
		1807	env->close (env, 0);
		1808
		1809	int set_data_dir (DB_ENV *env, const char *dir)
		1810	CODE:
		1811	RETVAL = env->set_data_dir (env, dir);
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int set_tmp_dir (DB_ENV *env, const char *dir)
		1816	CODE:
		1817	RETVAL = env->set_tmp_dir (env, dir);
		1818	OUTPUT:
		1819	RETVAL
		1820
		1821	int set_lg_dir (DB_ENV *env, const char *dir)
		1822	CODE:
		1823	RETVAL = env->set_lg_dir (env, dir);
		1824	OUTPUT:
		1825	RETVAL
		1826
		1827	int set_shm_key (DB_ENV *env, long shm_key)
		1828	CODE:
		1829	RETVAL = env->set_shm_key (env, shm_key);
		1830	OUTPUT:
		1831	RETVAL
		1832
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1833	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1834	CODE:
		1835	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1836	OUTPUT:
		1837	RETVAL
949		1838
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1839	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1840	CODE:
		1841	RETVAL = env->set_flags (env, flags, onoff);
		1842	OUTPUT:
		1843	RETVAL
951		1844
		1845	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1846	CODE:
		1847	env->set_errfile (env, errfile);
		1848
		1849	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1850	CODE:
		1851	env->set_msgfile (env, msgfile);
		1852
		1853	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1854	CODE:
		1855	RETVAL = env->set_verbose (env, which, onoff);
		1856	OUTPUT:
		1857	RETVAL
		1858
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1859	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1860	CODE:
		1861	RETVAL = env->set_encrypt (env, password, flags);
		1862	OUTPUT:
		1863	RETVAL
		1864
		1865	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1866	CODE:
		1867	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1872	CODE:
		1873	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1878	CODE:
		1879	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1884	CODE:
		1885	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1886	OUTPUT:
		1887	RETVAL
		1888
		1889	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1890	CODE:
		1891	RETVAL = env->set_lk_detect (env, detect);
		1892	OUTPUT:
		1893	RETVAL
		1894
		1895	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1896	CODE:
		1897	RETVAL = env->set_lk_max_lockers (env, max);
		1898	OUTPUT:
		1899	RETVAL
		1900
		1901	int set_lk_max_locks (DB_ENV *env, U32 max)
		1902	CODE:
		1903	RETVAL = env->set_lk_max_locks (env, max);
		1904	OUTPUT:
		1905	RETVAL
		1906
		1907	int set_lk_max_objects (DB_ENV *env, U32 max)
		1908	CODE:
		1909	RETVAL = env->set_lk_max_objects (env, max);
		1910	OUTPUT:
		1911	RETVAL
		1912
		1913	int set_lg_bsize (DB_ENV *env, U32 max)
		1914	CODE:
		1915	RETVAL = env->set_lg_bsize (env, max);
		1916	OUTPUT:
		1917	RETVAL
		1918
		1919	int set_lg_max (DB_ENV *env, U32 max)
		1920	CODE:
		1921	RETVAL = env->set_lg_max (env, max);
		1922	OUTPUT:
		1923	RETVAL
		1924
		1925	int mutex_set_max (DB_ENV *env, U32 max)
		1926	CODE:
		1927	RETVAL = env->mutex_set_max (env, max);
		1928	OUTPUT:
		1929	RETVAL
		1930
		1931	int mutex_set_increment (DB_ENV *env, U32 increment)
		1932	CODE:
		1933	RETVAL = env->mutex_set_increment (env, increment);
		1934	OUTPUT:
		1935	RETVAL
		1936
		1937	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1938	CODE:
		1939	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1940	OUTPUT:
		1941	RETVAL
		1942
		1943	int mutex_set_align (DB_ENV *env, U32 align)
		1944	CODE:
		1945	RETVAL = env->mutex_set_align (env, align);
		1946	OUTPUT:
		1947	RETVAL
		1948
		1949	DB_TXN *
		1950	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1951	CODE:
		1952	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1953	if (errno)
		1954	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1955	OUTPUT:
		1956	RETVAL
953		1957
954	MODULE = BDB PACKAGE = BDB::Db	1958	MODULE = BDB PACKAGE = BDB::Db
955		1959
		1960	void
		1961	DESTROY (DB_ornuked *db)
		1962	CODE:
		1963	if (db)
		1964	{
		1965	SV *env = (SV *)db->app_private;
		1966	db->close (db, 0);
		1967	SvREFCNT_dec (env);
		1968	}
		1969
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1970	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1971	CODE:
		1972	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1973	OUTPUT:
		1974	RETVAL
957		1975
958	int set_flags (DB *env, U32 flags, int onoff)	1976	int set_flags (DB *db, U32 flags)
		1977	CODE:
		1978	RETVAL = db->set_flags (db, flags);
		1979	OUTPUT:
		1980	RETVAL
959		1981
960	int set_encrypt (DB *db, const char *password, U32 flags)	1982	int set_encrypt (DB *db, const char *password, U32 flags)
		1983	CODE:
		1984	RETVAL = db->set_encrypt (db, password, flags);
		1985	OUTPUT:
		1986	RETVAL
961		1987
962	int set_lorder (DB *db, int lorder)	1988	int set_lorder (DB *db, int lorder)
963		1989	CODE:
		1990	RETVAL = db->set_lorder (db, lorder);
		1991	OUTPUT:
		1992	RETVAL
964		1993
965	int set_bt_minkey (DB *db, U32 minkey)	1994	int set_bt_minkey (DB *db, U32 minkey)
		1995	CODE:
		1996	RETVAL = db->set_bt_minkey (db, minkey);
		1997	OUTPUT:
		1998	RETVAL
966		1999
967	int set_re_delim(DB *db, int delim);	2000	int set_re_delim (DB *db, int delim)
		2001	CODE:
		2002	RETVAL = db->set_re_delim (db, delim);
		2003	OUTPUT:
		2004	RETVAL
968		2005
969	int set_re_pad (DB *db, int re_pad)	2006	int set_re_pad (DB *db, int re_pad)
		2007	CODE:
		2008	RETVAL = db->set_re_pad (db, re_pad);
		2009	OUTPUT:
		2010	RETVAL
970		2011
971	int set_re_source (DB *db, char *source)	2012	int set_re_source (DB *db, char *source)
		2013	CODE:
		2014	RETVAL = db->set_re_source (db, source);
		2015	OUTPUT:
		2016	RETVAL
972		2017
973	int set_re_len (DB *db, U32 re_len)	2018	int set_re_len (DB *db, U32 re_len)
		2019	CODE:
		2020	RETVAL = db->set_re_len (db, re_len);
		2021	OUTPUT:
		2022	RETVAL
974		2023
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2024	int set_h_ffactor (DB *db, U32 h_ffactor)
		2025	CODE:
		2026	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2027	OUTPUT:
		2028	RETVAL
976		2029
977	int set_h_nelem (DB *db, U32 h_nelem)	2030	int set_h_nelem (DB *db, U32 h_nelem)
		2031	CODE:
		2032	RETVAL = db->set_h_nelem (db, h_nelem);
		2033	OUTPUT:
		2034	RETVAL
978		2035
979	int set_q_extentsize (DB *db, U32 extentsize)	2036	int set_q_extentsize (DB *db, U32 extentsize)
		2037	CODE:
		2038	RETVAL = db->set_q_extentsize (db, extentsize);
		2039	OUTPUT:
		2040	RETVAL
980		2041
		2042	DBC *
		2043	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2044	CODE:
		2045	errno = db->cursor (db, txn, &RETVAL, flags);
		2046	if (errno)
		2047	croak ("DB->cursor: %s", db_strerror (errno));
		2048	OUTPUT:
		2049	RETVAL
981		2050
		2051	DB_SEQUENCE *
		2052	sequence (DB *db, U32 flags = 0)
		2053	CODE:
		2054	{
		2055	errno = db_sequence_create (&RETVAL, db, flags);
		2056	if (errno)
		2057	croak ("db_sequence_create: %s", db_strerror (errno));
		2058	}
		2059	OUTPUT:
		2060	RETVAL
		2061
		2062
		2063	MODULE = BDB PACKAGE = BDB::Txn
		2064
		2065	void
		2066	DESTROY (DB_TXN_ornuked *txn)
		2067	CODE:
		2068	if (txn)
		2069	txn->abort (txn);
		2070
		2071	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2072	CODE:
		2073	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2074	OUTPUT:
		2075	RETVAL
		2076
		2077	int failed (DB_TXN *txn)
		2078	CODE:
		2079	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2080	OUTPUT:
		2081	RETVAL
		2082
		2083
		2084	MODULE = BDB PACKAGE = BDB::Cursor
		2085
		2086	void
		2087	DESTROY (DBC_ornuked *dbc)
		2088	CODE:
		2089	if (dbc)
		2090	dbc->c_close (dbc);
		2091
		2092	#if DB_VERSION_MINOR >= 6
		2093
		2094	int set_priority (DBC *dbc, int priority)
		2095	CODE:
		2096	dbc->set_priority (dbc, priority);
		2097
		2098	#endif
		2099
		2100	MODULE = BDB PACKAGE = BDB::Sequence
		2101
		2102	void
		2103	DESTROY (DB_SEQUENCE_ornuked *seq)
		2104	CODE:
		2105	if (seq)
		2106	seq->close (seq, 0);
		2107
		2108	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2109	CODE:
		2110	RETVAL = seq->initial_value (seq, value);
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2115	CODE:
		2116	RETVAL = seq->set_cachesize (seq, size);
		2117	OUTPUT:
		2118	RETVAL
		2119
		2120	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2121	CODE:
		2122	RETVAL = seq->set_flags (seq, flags);
		2123	OUTPUT:
		2124	RETVAL
		2125
		2126	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2127	CODE:
		2128	RETVAL = seq->set_range (seq, min, max);
		2129	OUTPUT:
		2130	RETVAL
		2131
		2132

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