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Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.31 by root, Sun Mar 30 04:34:20 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/select.h>
24	#include <sys/types.h>	21	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	22	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	23	#include <fcntl.h>
29	#include <signal.h>	24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
30	#include <sched.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
31		35
32	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
34		38
35	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
36	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
37	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
38	*/	42	typedef DB DB_ornull;
39	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
40	# if __i386 || __x86_64	44
41	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
42	# else	46	typedef DB_TXN DB_TXN_ornuked;
43	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
44	# 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 *octetstring;
		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
45	#endif	64	#endif
46		65
47	typedef SV SV8; /* byte-sv, used for argument-checking */	66	static void
		67	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		68	{
		69	printf ("err[%s]\n", msg);
		70	}
48		71
		72	static void
		73	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		74	{
		75	printf ("msg[%s]\n", msg);
		76	}
		77
		78	static char *
		79	strdup_ornull (const char *s)
		80	{
		81	return s ? strdup (s) : 0;
		82	}
		83
		84	static void
		85	sv_to_dbt (DBT *dbt, SV *sv)
		86	{
		87	STRLEN len;
		88	char *data = SvPVbyte (sv, len);
		89
		90	dbt->data = malloc (len);
		91	memcpy (dbt->data, data, len);
		92	dbt->size = len;
		93	dbt->flags = DB_DBT_REALLOC;
		94	}
		95
		96	static void
		97	dbt_to_sv (SV *sv, DBT *dbt)
		98	{
		99	if (sv)
		100	{
		101	SvREADONLY_off (sv);
		102	sv_setpvn_mg (sv, dbt->data, dbt->size);
		103	SvREFCNT_dec (sv);
		104	}
		105
		106	free (dbt->data);
		107	}
		108
49	enum {	109	enum {
50	REQ_QUIT,	110	REQ_QUIT,
		111	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		112	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		113	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		114	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		115	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		116	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		117	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	118	};
52		119
53	#define AIO_CB \	120	typedef struct bdb_cb
		121	{
54	struct aio_cb *volatile next; \	122	struct bdb_cb *volatile next;
55	SV *callback; \	123	SV *callback;
56	int type, pri	124	int type, pri, result;
57		125
58	typedef struct aio_cb	126	DB_ENV *env;
59	{	127	DB *db;
60	AIO_CB;	128	DB_TXN *txn;
61	} aio_cb;	129	DBC *dbc;
62		130
		131	UV uv1;
		132	int int1, int2;
		133	U32 uint1, uint2;
		134	char *buf1, *buf2;
		135	SV *sv1, *sv2, *sv3;
		136
		137	DBT dbt1, dbt2, dbt3;
		138	DB_KEY_RANGE key_range;
		139	DB_SEQUENCE *seq;
		140	db_seq_t seq_t;
		141	} bdb_cb;
		142
63	typedef aio_cb *aio_req;	143	typedef bdb_cb *bdb_req;
64		144
65	enum {	145	enum {
66	PRI_MIN = -4,	146	PRI_MIN = -4,
67	PRI_MAX = 4,	147	PRI_MAX = 4,
68		148
…		…
85		165
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	166	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		167
88	static unsigned int started, idle, wanted;	168	static unsigned int started, idle, wanted;
89		169
90	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
91	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
92	#else
93	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
94	#endif
95
96	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
97	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
98
99	/* worker threads management */	170	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	171	static mutex_t wrklock = X_MUTEX_INIT;
101		172
102	typedef struct worker {	173	typedef struct worker {
103	/* locked by wrklock */	174	/* locked by wrklock */
104	struct worker *prev, *next;	175	struct worker *prev, *next;
105		176
106	pthread_t tid;	177	thread_t tid;
107		178
108	/* locked by reslock, reqlock or wrklock */	179	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	180	bdb_req req; /* currently processed request */
110	void *dbuf;	181	void *dbuf;
111	DIR *dirp;	182	DIR *dirp;
112	} worker;	183	} worker;
113		184
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	185	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	197	}
127		198
128	static volatile unsigned int nreqs, nready, npending;	199	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	200	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	201	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	202	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		203
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	204	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	205	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	206	static cond_t reqwait = X_COND_INIT;
136		207
137	#if WORDACCESS_UNSAFE	208	#if WORDACCESS_UNSAFE
138		209
139	static unsigned int get_nready ()	210	static unsigned int get_nready ()
140	{	211	{
141	unsigned int retval;	212	unsigned int retval;
142		213
143	LOCK (reqlock);	214	X_LOCK (reqlock);
144	retval = nready;	215	retval = nready;
145	UNLOCK (reqlock);	216	X_UNLOCK (reqlock);
146		217
147	return retval;	218	return retval;
148	}	219	}
149		220
150	static unsigned int get_npending ()	221	static unsigned int get_npending ()
151	{	222	{
152	unsigned int retval;	223	unsigned int retval;
153		224
154	LOCK (reslock);	225	X_LOCK (reslock);
155	retval = npending;	226	retval = npending;
156	UNLOCK (reslock);	227	X_UNLOCK (reslock);
157		228
158	return retval;	229	return retval;
159	}	230	}
160		231
161	static unsigned int get_nthreads ()	232	static unsigned int get_nthreads ()
162	{	233	{
163	unsigned int retval;	234	unsigned int retval;
164		235
165	LOCK (wrklock);	236	X_LOCK (wrklock);
166	retval = started;	237	retval = started;
167	UNLOCK (wrklock);	238	X_UNLOCK (wrklock);
168		239
169	return retval;	240	return retval;
170	}	241	}
171		242
172	#else	243	#else
…		…
181	* a somewhat faster data structure might be nice, but	252	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	253	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	254	* per shift, the most expensive operation.
184	*/	255	*/
185	typedef struct {	256	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	257	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	258	int size;
188	} reqq;	259	} reqq;
189		260
190	static reqq req_queue;	261	static reqq req_queue;
191	static reqq res_queue;	262	static reqq res_queue;
192		263
193	int reqq_push (reqq *q, aio_req req)	264	int reqq_push (reqq *q, bdb_req req)
194	{	265	{
195	int pri = req->pri;	266	int pri = req->pri;
196	req->next = 0;	267	req->next = 0;
197		268
198	if (q->qe[pri])	269	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	275	q->qe[pri] = q->qs[pri] = req;
205		276
206	return q->size++;	277	return q->size++;
207	}	278	}
208		279
209	aio_req reqq_shift (reqq *q)	280	bdb_req reqq_shift (reqq *q)
210	{	281	{
211	int pri;	282	int pri;
212		283
213	if (!q->size)	284	if (!q->size)
214	return 0;	285	return 0;
215		286
216	--q->size;	287	--q->size;
217		288
218	for (pri = NUM_PRI; pri--; )	289	for (pri = NUM_PRI; pri--; )
219	{	290	{
220	aio_req req = q->qs[pri];	291	bdb_req req = q->qs[pri];
221		292
222	if (req)	293	if (req)
223	{	294	{
224	if (!(q->qs[pri] = req->next))	295	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	296	q->qe[pri] = 0;
…		…
230		301
231	abort ();	302	abort ();
232	}	303	}
233		304
234	static int poll_cb ();	305	static int poll_cb ();
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	306	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);	307	static void req_cancel (bdb_req req);
238		308
239	static int req_invoke (aio_req req)	309	static int req_invoke (bdb_req req)
240	{	310	{
241	dSP;	311	dSP;
242		312
243	if (SvOK (req->callback))	313	if (SvOK (req->callback))
244	{	314	{
245	ENTER;	315	ENTER;
246	SAVETMPS;	316	SAVETMPS;
247	PUSHMARK (SP);	317	PUSHMARK (SP);
248	EXTEND (SP, 1);
249		318
250	switch (req->type)	319	switch (req->type)
251	{	320	{
		321	case REQ_DB_CLOSE:
		322	SvREFCNT_dec (req->sv1);
		323	break;
		324
		325	case REQ_DB_GET:
		326	case REQ_DB_PGET:
		327	dbt_to_sv (req->sv3, &req->dbt3);
		328	break;
		329
		330	case REQ_C_GET:
		331	case REQ_C_PGET:
		332	dbt_to_sv (req->sv1, &req->dbt1);
		333	dbt_to_sv (req->sv2, &req->dbt2);
		334	dbt_to_sv (req->sv3, &req->dbt3);
		335	break;
		336
		337	case REQ_DB_PUT:
		338	case REQ_C_PUT:
		339	dbt_to_sv (0, &req->dbt1);
		340	dbt_to_sv (0, &req->dbt2);
		341	break;
		342
		343	case REQ_DB_KEY_RANGE:
		344	{
		345	AV *av = newAV ();
		346
		347	av_push (av, newSVnv (req->key_range.less));
		348	av_push (av, newSVnv (req->key_range.equal));
		349	av_push (av, newSVnv (req->key_range.greater));
		350
		351	SvREADONLY_off (req->sv1);
		352	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		353	SvREFCNT_dec (req->sv1);
		354	}
		355	break;
		356
		357	case REQ_SEQ_GET:
		358	SvREADONLY_off (req->sv1);
		359
		360	if (sizeof (IV) > 4)
		361	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		362	else
		363	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		364
		365	SvREFCNT_dec (req->sv1);
		366	break;
252	}	367	}
		368
		369	errno = req->result;
253		370
254	PUTBACK;	371	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	372	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	373	SPAGAIN;
257		374
…		…
260	}	377	}
261		378
262	return !SvTRUE (ERRSV);	379	return !SvTRUE (ERRSV);
263	}	380	}
264		381
265	static void req_free (aio_req req)	382	static void req_free (bdb_req req)
266	{	383	{
		384	free (req->buf1);
		385	free (req->buf2);
267	Safefree (req);	386	Safefree (req);
268	}	387	}
269		388
270	static void *aio_proc(void *arg);	389	#ifdef USE_SOCKETS_AS_HANDLES
		390	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		391	#else
		392	# define TO_SOCKET(x) (x)
		393	#endif
		394
		395	static void
		396	create_respipe ()
		397	{
		398	#ifdef _WIN32
		399	int arg; /* argg */
		400	#endif
		401	int old_readfd = respipe [0];
		402
		403	if (respipe [1] >= 0)
		404	respipe_close (TO_SOCKET (respipe [1]));
		405
		406	#ifdef _WIN32
		407	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		408	#else
		409	if (pipe (respipe))
		410	#endif
		411	croak ("unable to initialize result pipe");
		412
		413	if (old_readfd >= 0)
		414	{
		415	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		416	croak ("unable to initialize result pipe(2)");
		417
		418	respipe_close (respipe [0]);
		419	respipe [0] = old_readfd;
		420	}
		421
		422	#ifdef _WIN32
		423	arg = 1;
		424	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		425	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		426	#else
		427	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		428	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		429	#endif
		430	croak ("unable to initialize result pipe(3)");
		431
		432	respipe_osf [0] = TO_SOCKET (respipe [0]);
		433	respipe_osf [1] = TO_SOCKET (respipe [1]);
		434	}
		435
		436	X_THREAD_PROC (bdb_proc);
271		437
272	static void start_thread (void)	438	static void start_thread (void)
273	{	439	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	440	worker *wrk = calloc (1, sizeof (worker));
278		441
279	if (!wrk)	442	if (!wrk)
280	croak ("unable to allocate worker thread data");	443	croak ("unable to allocate worker thread data");
281		444
282	pthread_attr_init (&attr);
283	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
284	#ifdef PTHREAD_SCOPE_PROCESS
285	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
286	#endif
287
288	sigfillset (&fullsigset);
289
290	LOCK (wrklock);	445	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	446	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	447	{
295	wrk->prev = &wrk_first;	448	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	449	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	450	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	451	wrk_first.next = wrk;
299	++started;	452	++started;
300	}	453	}
301	else	454	else
302	free (wrk);	455	free (wrk);
303		456
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	457	X_UNLOCK (wrklock);
306	}	458	}
307		459
308	static void maybe_start_thread ()	460	static void maybe_start_thread ()
309	{	461	{
310	if (get_nthreads () >= wanted)	462	if (get_nthreads () >= wanted)
…		…
315	return;	467	return;
316		468
317	start_thread ();	469	start_thread ();
318	}	470	}
319		471
320	static void req_send (aio_req req)	472	static void req_send (bdb_req req)
321	{	473	{
		474	SV *wait_callback = 0;
		475
		476	// synthesize callback if none given
		477	if (!SvOK (req->callback))
		478	{
		479	int count;
		480
		481	dSP;
		482	PUSHMARK (SP);
		483	PUTBACK;
		484	count = call_sv (prepare_cb, G_ARRAY);
		485	SPAGAIN;
		486
		487	if (count != 2)
		488	croak ("prepare callback must return exactly two values\n");
		489
		490	wait_callback = POPs;
		491	SvREFCNT_dec (req->callback);
		492	req->callback = SvREFCNT_inc (POPs);
		493	}
		494
322	++nreqs;	495	++nreqs;
323		496
324	LOCK (reqlock);	497	X_LOCK (reqlock);
325	++nready;	498	++nready;
326	reqq_push (&req_queue, req);	499	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	500	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	501	X_UNLOCK (reqlock);
329		502
330	maybe_start_thread ();	503	maybe_start_thread ();
		504
		505	if (wait_callback)
		506	{
		507	dSP;
		508	PUSHMARK (SP);
		509	PUTBACK;
		510	call_sv (wait_callback, G_DISCARD);
		511	}
331	}	512	}
332		513
333	static void end_thread (void)	514	static void end_thread (void)
334	{	515	{
335	aio_req req;	516	bdb_req req;
336		517
337	Newz (0, req, 1, aio_cb);	518	Newz (0, req, 1, bdb_cb);
338		519
339	req->type = REQ_QUIT;	520	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	521	req->pri = PRI_MAX + PRI_BIAS;
341		522
342	LOCK (reqlock);	523	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	524	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	525	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	526	X_UNLOCK (reqlock);
346		527
347	LOCK (wrklock);	528	X_LOCK (wrklock);
348	--started;	529	--started;
349	UNLOCK (wrklock);	530	X_UNLOCK (wrklock);
350	}	531	}
351		532
352	static void set_max_idle (int nthreads)	533	static void set_max_idle (int nthreads)
353	{	534	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	535	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	536	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	537	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	538	}
358		539
359	static void min_parallel (int nthreads)	540	static void min_parallel (int nthreads)
360	{	541	{
361	if (wanted < nthreads)	542	if (wanted < nthreads)
…		…
376	fd_set rfd;	557	fd_set rfd;
377		558
378	while (nreqs)	559	while (nreqs)
379	{	560	{
380	int size;	561	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	562	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	563	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	564	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		565
385	if (size)	566	if (size)
386	return;	567	return;
387		568
388	maybe_start_thread ();	569	maybe_start_thread ();
389		570
390	FD_ZERO(&rfd);	571	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	572	FD_SET (respipe [0], &rfd);
392		573
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	574	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	575	}
395	}	576	}
396		577
397	static int poll_cb ()	578	static int poll_cb ()
398	{	579	{
399	dSP;	580	dSP;
400	int count = 0;	581	int count = 0;
401	int maxreqs = max_poll_reqs;	582	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	583	int do_croak = 0;
403	struct timeval tv_start, tv_now;	584	struct timeval tv_start, tv_now;
404	aio_req req;	585	bdb_req req;
405		586
406	if (max_poll_time)	587	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	588	gettimeofday (&tv_start, 0);
408		589
409	for (;;)	590	for (;;)
410	{	591	{
411	for (;;)	592	for (;;)
412	{	593	{
413	maybe_start_thread ();	594	maybe_start_thread ();
414		595
415	LOCK (reslock);	596	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	597	req = reqq_shift (&res_queue);
417		598
418	if (req)	599	if (req)
419	{	600	{
420	--npending;	601	--npending;
421		602
422	if (!res_queue.size)	603	if (!res_queue.size)
423	{	604	{
424	/* read any signals sent by the worker threads */	605	/* read any signals sent by the worker threads */
425	char buf [4];	606	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	607	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	608	;
428	}	609	}
429	}	610	}
430		611
431	UNLOCK (reslock);	612	X_UNLOCK (reslock);
432		613
433	if (!req)	614	if (!req)
434	break;	615	break;
435		616
436	--nreqs;	617	--nreqs;
…		…
466	}	647	}
467		648
468	return count;	649	return count;
469	}	650	}
470		651
471	static void create_pipe ()
472	{
473	if (pipe (respipe))
474	croak ("unable to initialize result pipe");
475
476	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
477	croak ("cannot set result pipe to nonblocking mode");
478
479	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	croak ("cannot set result pipe to nonblocking mode");
481	}
482
483	/*****************************************************************************/	652	/*****************************************************************************/
484		653
485	static void *aio_proc (void *thr_arg)	654	X_THREAD_PROC (bdb_proc)
486	{	655	{
487	aio_req req;	656	bdb_req req;
488	struct timespec ts;	657	struct timespec ts;
489	worker *self = (worker *)thr_arg;	658	worker *self = (worker *)thr_arg;
490		659
491	/* try to distribute timeouts somewhat evenly */	660	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	661	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		662
495	for (;;)	663	for (;;)
496	{	664	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	665	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		666
499	LOCK (reqlock);	667	X_LOCK (reqlock);
500		668
501	for (;;)	669	for (;;)
502	{	670	{
503	self->req = req = reqq_shift (&req_queue);	671	self->req = req = reqq_shift (&req_queue);
504		672
505	if (req)	673	if (req)
506	break;	674	break;
507		675
508	++idle;	676	++idle;
509		677
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	678	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	679	== ETIMEDOUT)
512	{	680	{
513	if (idle > max_idle)	681	if (idle > max_idle)
514	{	682	{
515	--idle;	683	--idle;
516	UNLOCK (reqlock);	684	X_UNLOCK (reqlock);
517	LOCK (wrklock);	685	X_LOCK (wrklock);
518	--started;	686	--started;
519	UNLOCK (wrklock);	687	X_UNLOCK (wrklock);
520	goto quit;	688	goto quit;
521	}	689	}
522		690
523	/* we are allowed to idle, so do so without any timeout */	691	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	692	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	693	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	694	}
527		695
528	--idle;	696	--idle;
529	}	697	}
530		698
531	--nready;	699	--nready;
532		700
533	UNLOCK (reqlock);	701	X_UNLOCK (reqlock);
534		702
535	errno = 0; /* strictly unnecessary */
536
537	switch (req->type)	703	switch (req->type)
538	{	704	{
539	case REQ_QUIT:	705	case REQ_QUIT:
		706	req->result = ENOSYS;
540	goto quit;	707	goto quit;
541		708
		709	case REQ_ENV_OPEN:
		710	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		711	break;
		712
		713	case REQ_ENV_CLOSE:
		714	req->result = req->env->close (req->env, req->uint1);
		715	break;
		716
		717	case REQ_ENV_TXN_CHECKPOINT:
		718	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		719	break;
		720
		721	case REQ_ENV_LOCK_DETECT:
		722	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		723	break;
		724
		725	case REQ_ENV_MEMP_SYNC:
		726	req->result = req->env->memp_sync (req->env, 0);
		727	break;
		728
		729	case REQ_ENV_MEMP_TRICKLE:
		730	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		731	break;
		732
		733	case REQ_DB_OPEN:
		734	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		735	break;
		736
		737	case REQ_DB_CLOSE:
		738	req->result = req->db->close (req->db, req->uint1);
		739	break;
		740
		741	case REQ_DB_COMPACT:
		742	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		743	break;
		744
		745	case REQ_DB_SYNC:
		746	req->result = req->db->sync (req->db, req->uint1);
		747	break;
		748
		749	case REQ_DB_UPGRADE:
		750	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		751	break;
		752
		753	case REQ_DB_PUT:
		754	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		755	break;
		756
		757	case REQ_DB_GET:
		758	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		759	break;
		760
		761	case REQ_DB_PGET:
		762	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		763	break;
		764
		765	case REQ_DB_DEL:
		766	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		767	break;
		768
		769	case REQ_DB_KEY_RANGE:
		770	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		771	break;
		772
		773	case REQ_TXN_COMMIT:
		774	req->result = req->txn->commit (req->txn, req->uint1);
		775	break;
		776
		777	case REQ_TXN_ABORT:
		778	req->result = req->txn->abort (req->txn);
		779	break;
		780
		781	case REQ_TXN_FINISH:
		782	if (req->txn->flags & TXN_DEADLOCK)
		783	{
		784	req->result = req->txn->abort (req->txn);
		785	if (!req->result)
		786	req->result = DB_LOCK_DEADLOCK;
		787	}
		788	else
		789	req->result = req->txn->commit (req->txn, req->uint1);
		790	break;
		791
		792	case REQ_C_CLOSE:
		793	req->result = req->dbc->c_close (req->dbc);
		794	break;
		795
		796	case REQ_C_COUNT:
		797	{
		798	db_recno_t recno;
		799	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		800	req->uv1 = recno;
		801	}
		802	break;
		803
		804	case REQ_C_PUT:
		805	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		806	break;
		807
		808	case REQ_C_GET:
		809	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		810	break;
		811
		812	case REQ_C_PGET:
		813	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		814	break;
		815
		816	case REQ_C_DEL:
		817	req->result = req->dbc->c_del (req->dbc, req->uint1);
		818	break;
		819
		820	case REQ_SEQ_OPEN:
		821	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		822	break;
		823
		824	case REQ_SEQ_CLOSE:
		825	req->result = req->seq->close (req->seq, req->uint1);
		826	break;
		827
		828	case REQ_SEQ_GET:
		829	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		830	break;
		831
		832	case REQ_SEQ_REMOVE:
		833	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		834	break;
		835
542	default:	836	default:
543	//req->result = ENOSYS;	837	req->result = ENOSYS;
544	break;	838	break;
545	}	839	}
546		840
547	//req->errorno = errno;	841	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		842	req->txn->flags |= TXN_DEADLOCK;
548		843
549	LOCK (reslock);	844	X_LOCK (reslock);
550		845
551	++npending;	846	++npending;
552		847
553	if (!reqq_push (&res_queue, req))	848	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	849	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	850	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		851
557	self->req = 0;	852	self->req = 0;
558	worker_clear (self);	853	worker_clear (self);
559		854
560	UNLOCK (reslock);	855	X_UNLOCK (reslock);
561	}	856	}
562		857
563	quit:	858	quit:
564	LOCK (wrklock);	859	X_LOCK (wrklock);
565	worker_free (self);	860	worker_free (self);
566	UNLOCK (wrklock);	861	X_UNLOCK (wrklock);
567		862
568	return 0;	863	return 0;
569	}	864	}
570		865
571	/*****************************************************************************/	866	/*****************************************************************************/
572		867
573	static void atfork_prepare (void)	868	static void atfork_prepare (void)
574	{	869	{
575	LOCK (wrklock);	870	X_LOCK (wrklock);
576	LOCK (reqlock);	871	X_LOCK (reqlock);
577	LOCK (reslock);	872	X_LOCK (reslock);
578	}	873	}
579		874
580	static void atfork_parent (void)	875	static void atfork_parent (void)
581	{	876	{
582	UNLOCK (reslock);	877	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	878	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	879	X_UNLOCK (wrklock);
585	}	880	}
586		881
587	static void atfork_child (void)	882	static void atfork_child (void)
588	{	883	{
589	aio_req prv;	884	bdb_req prv;
590		885
591	while (prv = reqq_shift (&req_queue))	886	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	887	req_free (prv);
593		888
594	while (prv = reqq_shift (&res_queue))	889	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	904	idle = 0;
610	nreqs = 0;	905	nreqs = 0;
611	nready = 0;	906	nready = 0;
612	npending = 0;	907	npending = 0;
613		908
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	909	create_respipe ();
617		910
618	atfork_parent ();	911	atfork_parent ();
619	}	912	}
620		913
621	#define dREQ \	914	#define dREQ(reqtype) \
622	aio_req req; \	915	bdb_req req; \
623	int req_pri = next_pri; \	916	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	917	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	918	\
626	if (SvOK (callback) && !SvROK (callback)) \	919	if (SvOK (callback) && !SvROK (callback)) \
627	croak ("callback must be undef or of reference type"); \	920	croak ("callback must be undef or of reference type"); \
628	\	921	\
629	Newz (0, req, 1, aio_cb); \	922	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	923	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	924	croak ("out of memory during bdb_req allocation"); \
632	\	925	\
633	req->callback = newSVsv (callback); \	926	req->callback = newSVsv (callback); \
		927	req->type = (reqtype); \
634	req->pri = req_pri	928	req->pri = req_pri
635		929
636	#define REQ_SEND \	930	#define REQ_SEND \
637	req_send (req); \	931	req_send (req)
		932
		933	#define SvPTR(var, arg, type, class, nullok) \
		934	if (!SvOK (arg)) \
		935	{ \
		936	if (nullok != 1) \
		937	croak (# var " must be a " # class " object, not undef"); \
638	\	938	\
639	if (GIMME_V != G_VOID) \	939	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	940	} \
641		941	else if (sv_derived_from ((arg), # class)) \
		942	{ \
		943	IV tmp = SvIV ((SV*) SvRV (arg)); \
		944	(var) = INT2PTR (type, tmp); \
		945	if (!var && nullok != 2) \
		946	croak (# var " is not a valid " # class " object anymore"); \
		947	} \
		948	else \
		949	croak (# var " is not of type " # class); \
		950	\
		951
		952	static void
		953	ptr_nuke (SV *sv)
		954	{
		955	assert (SvROK (sv));
		956	sv_setiv (SvRV (sv), 0);
		957	}
		958
		959	static int
		960	errno_get (pTHX_ SV *sv, MAGIC *mg)
		961	{
		962	if (*mg->mg_ptr == '!') // should always be the case
		963	if (-30999 <= errno && errno <= -30800)
		964	{
		965	sv_setpv (sv, db_strerror (errno));
		966	return 0;
		967	}
		968
		969	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		970	}
		971
		972	static MGVTBL vtbl_errno;
		973
		974	// this wonderful hack :( patches perl's $! variable to support our errno values
		975	static void
		976	patch_errno (void)
		977	{
		978	SV *sv;
		979	MAGIC *mg;
		980
		981	if (!(sv = get_sv ("!", 1)))
		982	return;
		983
		984	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		985	return;
		986
		987	if (mg->mg_virtual != &PL_vtbl_sv)
		988	return;
		989
		990	vtbl_errno = PL_vtbl_sv;
		991	vtbl_errno.svt_get = errno_get;
		992	mg->mg_virtual = &vtbl_errno;
		993	}
		994
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	995	MODULE = BDB PACKAGE = BDB
643		996
644	PROTOTYPES: ENABLE	997	PROTOTYPES: ENABLE
645		998
646	BOOT:	999	BOOT:
647	{	1000	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1001	HV *stash = gv_stashpv ("BDB", 1);
649		1002
650	create_pipe ();	1003	static const struct {
		1004	const char *name;
		1005	IV iv;
		1006	} *civ, const_iv[] = {
		1007	#define const_iv(name) { # name, (IV)DB_ ## name },
		1008	const_iv (RPCCLIENT)
		1009	const_iv (INIT_CDB)
		1010	const_iv (INIT_LOCK)
		1011	const_iv (INIT_LOG)
		1012	const_iv (INIT_MPOOL)
		1013	const_iv (INIT_REP)
		1014	const_iv (INIT_TXN)
		1015	const_iv (RECOVER)
		1016	const_iv (INIT_TXN)
		1017	const_iv (RECOVER_FATAL)
		1018	const_iv (CREATE)
		1019	const_iv (RDONLY)
		1020	const_iv (USE_ENVIRON)
		1021	const_iv (USE_ENVIRON_ROOT)
		1022	const_iv (LOCKDOWN)
		1023	const_iv (PRIVATE)
		1024	const_iv (REGISTER)
		1025	const_iv (SYSTEM_MEM)
		1026	const_iv (AUTO_COMMIT)
		1027	const_iv (CDB_ALLDB)
		1028	const_iv (DIRECT_DB)
		1029	const_iv (DIRECT_LOG)
		1030	const_iv (DSYNC_DB)
		1031	const_iv (DSYNC_LOG)
		1032	const_iv (LOG_AUTOREMOVE)
		1033	const_iv (LOG_INMEMORY)
		1034	const_iv (NOLOCKING)
		1035	const_iv (NOMMAP)
		1036	const_iv (NOPANIC)
		1037	const_iv (OVERWRITE)
		1038	const_iv (PANIC_ENVIRONMENT)
		1039	const_iv (REGION_INIT)
		1040	const_iv (TIME_NOTGRANTED)
		1041	const_iv (TXN_NOSYNC)
		1042	const_iv (TXN_NOT_DURABLE)
		1043	const_iv (TXN_WRITE_NOSYNC)
		1044	const_iv (WRITECURSOR)
		1045	const_iv (YIELDCPU)
		1046	const_iv (ENCRYPT_AES)
		1047	const_iv (XA_CREATE)
		1048	const_iv (BTREE)
		1049	const_iv (HASH)
		1050	const_iv (QUEUE)
		1051	const_iv (RECNO)
		1052	const_iv (UNKNOWN)
		1053	const_iv (EXCL)
		1054	const_iv (READ_COMMITTED)
		1055	const_iv (READ_UNCOMMITTED)
		1056	const_iv (TRUNCATE)
		1057	const_iv (NOSYNC)
		1058	const_iv (CHKSUM)
		1059	const_iv (ENCRYPT)
		1060	const_iv (DUP)
		1061	const_iv (DUPSORT)
		1062	const_iv (RECNUM)
		1063	const_iv (RENUMBER)
		1064	const_iv (REVSPLITOFF)
		1065	const_iv (INORDER)
		1066	const_iv (CONSUME)
		1067	const_iv (CONSUME_WAIT)
		1068	const_iv (GET_BOTH)
		1069	const_iv (GET_BOTH_RANGE)
		1070	//const_iv (SET_RECNO)
		1071	//const_iv (MULTIPLE)
		1072	const_iv (SNAPSHOT)
		1073	const_iv (JOIN_ITEM)
		1074	const_iv (JOIN_NOSORT)
		1075	const_iv (RMW)
		1076
		1077	const_iv (NOTFOUND)
		1078	const_iv (KEYEMPTY)
		1079	const_iv (LOCK_DEADLOCK)
		1080	const_iv (LOCK_NOTGRANTED)
		1081	const_iv (RUNRECOVERY)
		1082	const_iv (OLD_VERSION)
		1083	const_iv (REP_HANDLE_DEAD)
		1084	const_iv (REP_LOCKOUT)
		1085	const_iv (SECONDARY_BAD)
		1086
		1087	const_iv (FREE_SPACE)
		1088	const_iv (FREELIST_ONLY)
		1089
		1090	const_iv (APPEND)
		1091	const_iv (NODUPDATA)
		1092	const_iv (NOOVERWRITE)
		1093
		1094	const_iv (TXN_NOWAIT)
		1095	const_iv (TXN_SYNC)
		1096
		1097	const_iv (SET_LOCK_TIMEOUT)
		1098	const_iv (SET_TXN_TIMEOUT)
		1099
		1100	const_iv (FIRST)
		1101	const_iv (NEXT)
		1102	const_iv (NEXT_DUP)
		1103	const_iv (NEXT_NODUP)
		1104	const_iv (PREV)
		1105	const_iv (PREV_NODUP)
		1106	const_iv (SET)
		1107	const_iv (SET_RANGE)
		1108	const_iv (LAST)
		1109	const_iv (BEFORE)
		1110	const_iv (AFTER)
		1111	const_iv (CURRENT)
		1112	const_iv (KEYFIRST)
		1113	const_iv (KEYLAST)
		1114	const_iv (NODUPDATA)
		1115
		1116	const_iv (FORCE)
		1117
		1118	const_iv (LOCK_DEFAULT)
		1119	const_iv (LOCK_EXPIRE)
		1120	const_iv (LOCK_MAXLOCKS)
		1121	const_iv (LOCK_MAXWRITE)
		1122	const_iv (LOCK_MINLOCKS)
		1123	const_iv (LOCK_MINWRITE)
		1124	const_iv (LOCK_OLDEST)
		1125	const_iv (LOCK_RANDOM)
		1126	const_iv (LOCK_YOUNGEST)
		1127
		1128	const_iv (SEQ_DEC)
		1129	const_iv (SEQ_INC)
		1130	const_iv (SEQ_WRAP)
		1131
		1132	const_iv (BUFFER_SMALL)
		1133	const_iv (DONOTINDEX)
		1134	const_iv (KEYEMPTY )
		1135	const_iv (KEYEXIST )
		1136	const_iv (LOCK_DEADLOCK)
		1137	const_iv (LOCK_NOTGRANTED)
		1138	const_iv (LOG_BUFFER_FULL)
		1139	const_iv (NOSERVER)
		1140	const_iv (NOSERVER_HOME)
		1141	const_iv (NOSERVER_ID)
		1142	const_iv (NOTFOUND)
		1143	const_iv (PAGE_NOTFOUND)
		1144	const_iv (REP_DUPMASTER)
		1145	const_iv (REP_HANDLE_DEAD)
		1146	const_iv (REP_HOLDELECTION)
		1147	const_iv (REP_IGNORE)
		1148	const_iv (REP_ISPERM)
		1149	const_iv (REP_JOIN_FAILURE)
		1150	const_iv (REP_LOCKOUT)
		1151	const_iv (REP_NEWMASTER)
		1152	const_iv (REP_NEWSITE)
		1153	const_iv (REP_NOTPERM)
		1154	const_iv (REP_UNAVAIL)
		1155	const_iv (RUNRECOVERY)
		1156	const_iv (SECONDARY_BAD)
		1157	const_iv (VERIFY_BAD)
		1158	const_iv (VERSION_MISMATCH)
		1159
		1160	const_iv (VERB_DEADLOCK)
		1161	const_iv (VERB_RECOVERY)
		1162	const_iv (VERB_REGISTER)
		1163	const_iv (VERB_REPLICATION)
		1164	const_iv (VERB_WAITSFOR)
		1165
		1166	const_iv (VERSION_MAJOR)
		1167	const_iv (VERSION_MINOR)
		1168	const_iv (VERSION_PATCH)
		1169	#if DB_VERSION_MINOR >= 5
		1170	const_iv (MULTIVERSION)
		1171	const_iv (TXN_SNAPSHOT)
		1172	#endif
		1173	#if DB_VERSION_MINOR >= 6
		1174	const_iv (PREV_DUP)
		1175	const_iv (PRIORITY_UNCHANGED)
		1176	const_iv (PRIORITY_VERY_LOW)
		1177	const_iv (PRIORITY_LOW)
		1178	const_iv (PRIORITY_DEFAULT)
		1179	const_iv (PRIORITY_HIGH)
		1180	const_iv (PRIORITY_VERY_HIGH)
		1181	#endif
		1182	};
		1183
		1184	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1185	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1186
		1187	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1188	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1189
		1190	create_respipe ();
		1191
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1192	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1193	#ifdef _WIN32
		1194	X_MUTEX_CHECK (wrklock);
		1195	X_MUTEX_CHECK (reslock);
		1196	X_MUTEX_CHECK (reqlock);
		1197
		1198	X_COND_CHECK (reqwait);
		1199	#endif
		1200	patch_errno ();
652	}	1201	}
653		1202
654	void	1203	void
655	max_poll_reqs (int nreqs)	1204	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1205	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1234	max_outstanding = maxreqs;
686	OUTPUT:	1235	OUTPUT:
687	RETVAL	1236	RETVAL
688		1237
689	int	1238	int
690	bdbreq_pri (int pri = 0)	1239	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1240	PROTOTYPE: ;$
692	CODE:	1241	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1242	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1243	if (items > 0)
695	{	1244	{
…		…
699	}	1248	}
700	OUTPUT:	1249	OUTPUT:
701	RETVAL	1250	RETVAL
702		1251
703	void	1252	void
704	bdbreq_nice (int nice = 0)	1253	dbreq_nice (int nice = 0)
705	CODE:	1254	CODE:
706	nice = next_pri - nice;	1255	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1256	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1257	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1258	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1266	poll_wait ();
718	poll_cb ();	1267	poll_cb ();
719	}	1268	}
720		1269
721	int	1270	int
722	poll()	1271	poll ()
723	PROTOTYPE:	1272	PROTOTYPE:
724	CODE:	1273	CODE:
725	poll_wait ();	1274	poll_wait ();
726	RETVAL = poll_cb ();	1275	RETVAL = poll_cb ();
727	OUTPUT:	1276	OUTPUT:
728	RETVAL	1277	RETVAL
729		1278
730	int	1279	int
731	poll_fileno()	1280	poll_fileno ()
732	PROTOTYPE:	1281	PROTOTYPE:
733	CODE:	1282	CODE:
734	RETVAL = respipe [0];	1283	RETVAL = respipe [0];
735	OUTPUT:	1284	OUTPUT:
736	RETVAL	1285	RETVAL
737		1286
738	int	1287	int
739	poll_cb(...)	1288	poll_cb (...)
740	PROTOTYPE:	1289	PROTOTYPE:
741	CODE:	1290	CODE:
742	RETVAL = poll_cb ();	1291	RETVAL = poll_cb ();
743	OUTPUT:	1292	OUTPUT:
744	RETVAL	1293	RETVAL
745		1294
746	void	1295	void
747	poll_wait()	1296	poll_wait ()
748	PROTOTYPE:	1297	PROTOTYPE:
749	CODE:	1298	CODE:
750	poll_wait ();	1299	poll_wait ();
751		1300
752	int	1301	int
753	nreqs()	1302	nreqs ()
754	PROTOTYPE:	1303	PROTOTYPE:
755	CODE:	1304	CODE:
756	RETVAL = nreqs;	1305	RETVAL = nreqs;
757	OUTPUT:	1306	OUTPUT:
758	RETVAL	1307	RETVAL
759		1308
760	int	1309	int
761	nready()	1310	nready ()
762	PROTOTYPE:	1311	PROTOTYPE:
763	CODE:	1312	CODE:
764	RETVAL = get_nready ();	1313	RETVAL = get_nready ();
765	OUTPUT:	1314	OUTPUT:
766	RETVAL	1315	RETVAL
767		1316
768	int	1317	int
769	npending()	1318	npending ()
770	PROTOTYPE:	1319	PROTOTYPE:
771	CODE:	1320	CODE:
772	RETVAL = get_npending ();	1321	RETVAL = get_npending ();
773	OUTPUT:	1322	OUTPUT:
774	RETVAL	1323	RETVAL
775		1324
776	int	1325	int
777	nthreads()	1326	nthreads ()
778	PROTOTYPE:	1327	PROTOTYPE:
779	CODE:	1328	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1329	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1330	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1331	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1332	OUTPUT:
784	RETVAL	1333	RETVAL
785		1334
		1335	void
		1336	set_sync_prepare (SV *cb)
		1337	PROTOTYPE: &
		1338	CODE:
		1339	SvREFCNT_dec (prepare_cb);
		1340	prepare_cb = newSVsv (cb);
786		1341
		1342	char *
		1343	strerror (int errorno = errno)
		1344	PROTOTYPE: ;$
		1345	CODE:
		1346	RETVAL = db_strerror (errorno);
		1347	OUTPUT:
		1348	RETVAL
		1349
		1350	DB_ENV *
		1351	db_env_create (U32 env_flags = 0)
		1352	CODE:
		1353	{
		1354	errno = db_env_create (&RETVAL, env_flags);
		1355	if (errno)
		1356	croak ("db_env_create: %s", db_strerror (errno));
		1357
		1358	if (0)
		1359	{
		1360	RETVAL->set_errcall (RETVAL, debug_errcall);
		1361	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1362	}
		1363	}
		1364	OUTPUT:
		1365	RETVAL
		1366
		1367	void
		1368	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
		1369	CODE:
		1370	{
		1371	dREQ (REQ_ENV_OPEN);
		1372
		1373	req->env = env;
		1374	req->uint1 = open_flags | DB_THREAD;
		1375	req->int1 = mode;
		1376	req->buf1 = strdup_ornull (db_home);
		1377	REQ_SEND;
		1378	}
		1379
		1380	void
		1381	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
		1382	CODE:
		1383	{
		1384	dREQ (REQ_ENV_CLOSE);
		1385	req->env = env;
		1386	req->uint1 = flags;
		1387	REQ_SEND;
		1388	ptr_nuke (ST (0));
		1389	}
		1390
		1391	void
		1392	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1393	CODE:
		1394	{
		1395	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1396	req->env = env;
		1397	req->uint1 = kbyte;
		1398	req->int1 = min;
		1399	req->uint2 = flags;
		1400	REQ_SEND;
		1401	}
		1402
		1403	void
		1404	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1405	CODE:
		1406	{
		1407	dREQ (REQ_ENV_LOCK_DETECT);
		1408	req->env = env;
		1409	req->uint1 = flags;
		1410	req->uint2 = atype;
		1411	REQ_SEND;
		1412	}
		1413
		1414	void
		1415	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1416	CODE:
		1417	{
		1418	dREQ (REQ_ENV_MEMP_SYNC);
		1419	req->env = env;
		1420	REQ_SEND;
		1421	}
		1422
		1423	void
		1424	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1425	CODE:
		1426	{
		1427	dREQ (REQ_ENV_MEMP_TRICKLE);
		1428	req->env = env;
		1429	req->int1 = percent;
		1430	REQ_SEND;
		1431	}
		1432
		1433
		1434	DB *
		1435	db_create (DB_ENV *env = 0, U32 flags = 0)
		1436	CODE:
		1437	{
		1438	errno = db_create (&RETVAL, env, flags);
		1439	if (errno)
		1440	croak ("db_create: %s", db_strerror (errno));
		1441
		1442	if (RETVAL)
		1443	RETVAL->app_private = (void *)newSVsv (ST (0));
		1444	}
		1445	OUTPUT:
		1446	RETVAL
		1447
		1448	void
		1449	db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
		1450	CODE:
		1451	{
		1452	dREQ (REQ_DB_OPEN);
		1453	req->db = db;
		1454	req->txn = txnid;
		1455	req->buf1 = strdup_ornull (file);
		1456	req->buf2 = strdup_ornull (database);
		1457	req->int1 = type;
		1458	req->uint1 = flags | DB_THREAD;
		1459	req->int2 = mode;
		1460	REQ_SEND;
		1461	}
		1462
		1463	void
		1464	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1465	CODE:
		1466	{
		1467	dREQ (REQ_DB_CLOSE);
		1468	req->db = db;
		1469	req->uint1 = flags;
		1470	req->sv1 = (SV *)db->app_private;
		1471	REQ_SEND;
		1472	ptr_nuke (ST (0));
		1473	}
		1474
		1475	void
		1476	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)
		1477	CODE:
		1478	{
		1479	dREQ (REQ_DB_COMPACT);
		1480	req->db = db;
		1481	req->txn = txn;
		1482	sv_to_dbt (&req->dbt1, start);
		1483	sv_to_dbt (&req->dbt2, stop);
		1484	req->uint1 = flags;
		1485	REQ_SEND;
		1486	}
		1487
		1488	void
		1489	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1490	CODE:
		1491	{
		1492	dREQ (REQ_DB_SYNC);
		1493	req->db = db;
		1494	req->uint1 = flags;
		1495	REQ_SEND;
		1496	}
		1497
		1498	void
		1499	db_upgrade (DB *db, octetstring file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1500	CODE:
		1501	{
		1502	dREQ (REQ_DB_SYNC);
		1503	req->db = db;
		1504	req->buf1 = strdup (file);
		1505	req->uint1 = flags;
		1506	REQ_SEND;
		1507	}
		1508
		1509	void
		1510	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1511	CODE:
		1512	{
		1513	dREQ (REQ_DB_KEY_RANGE);
		1514	req->db = db;
		1515	req->txn = txn;
		1516	sv_to_dbt (&req->dbt1, key);
		1517	req->uint1 = flags;
		1518	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1519	REQ_SEND;
		1520	}
		1521
		1522	void
		1523	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1524	CODE:
		1525	{
		1526	dREQ (REQ_DB_PUT);
		1527	req->db = db;
		1528	req->txn = txn;
		1529	sv_to_dbt (&req->dbt1, key);
		1530	sv_to_dbt (&req->dbt2, data);
		1531	req->uint1 = flags;
		1532	REQ_SEND;
		1533	}
		1534
		1535	void
		1536	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1537	CODE:
		1538	if (SvREADONLY (data))
		1539	croak ("can't modify read-only data scalar in db_get");
		1540	{
		1541	dREQ (REQ_DB_GET);
		1542	req->db = db;
		1543	req->txn = txn;
		1544	req->uint1 = flags;
		1545	sv_to_dbt (&req->dbt1, key);
		1546	req->dbt3.flags = DB_DBT_MALLOC;
		1547	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1548	REQ_SEND;
		1549	}
		1550
		1551	void
		1552	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1553	CODE:
		1554	if (SvREADONLY (data))
		1555	croak ("can't modify read-only data scalar in db_pget");
		1556	{
		1557	dREQ (REQ_DB_PGET);
		1558	req->db = db;
		1559	req->txn = txn;
		1560	req->uint1 = flags;
		1561	sv_to_dbt (&req->dbt1, key);
		1562	sv_to_dbt (&req->dbt2, pkey);
		1563	req->dbt3.flags = DB_DBT_MALLOC;
		1564	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1565	REQ_SEND;
		1566	}
		1567
		1568	void
		1569	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1570	CODE:
		1571	{
		1572	dREQ (REQ_DB_DEL);
		1573	req->db = db;
		1574	req->txn = txn;
		1575	req->uint1 = flags;
		1576	sv_to_dbt (&req->dbt1, key);
		1577	REQ_SEND;
		1578	}
		1579
		1580	void
		1581	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1582	CODE:
		1583	{
		1584	dREQ (REQ_TXN_COMMIT);
		1585	req->txn = txn;
		1586	req->uint1 = flags;
		1587	REQ_SEND;
		1588	ptr_nuke (ST (0));
		1589	}
		1590
		1591	void
		1592	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1593	CODE:
		1594	{
		1595	dREQ (REQ_TXN_ABORT);
		1596	req->txn = txn;
		1597	REQ_SEND;
		1598	ptr_nuke (ST (0));
		1599	}
		1600
		1601	void
		1602	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1603	CODE:
		1604	{
		1605	dREQ (REQ_TXN_FINISH);
		1606	req->txn = txn;
		1607	req->uint1 = flags;
		1608	REQ_SEND;
		1609	ptr_nuke (ST (0));
		1610	}
		1611
		1612	void
		1613	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1614	CODE:
		1615	{
		1616	dREQ (REQ_C_CLOSE);
		1617	req->dbc = dbc;
		1618	REQ_SEND;
		1619	ptr_nuke (ST (0));
		1620	}
		1621
		1622	void
		1623	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1624	CODE:
		1625	{
		1626	dREQ (REQ_C_COUNT);
		1627	req->dbc = dbc;
		1628	req->sv1 = SvREFCNT_inc (count);
		1629	REQ_SEND;
		1630	}
		1631
		1632	void
		1633	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1634	CODE:
		1635	{
		1636	dREQ (REQ_C_PUT);
		1637	req->dbc = dbc;
		1638	sv_to_dbt (&req->dbt1, key);
		1639	sv_to_dbt (&req->dbt2, data);
		1640	req->uint1 = flags;
		1641	REQ_SEND;
		1642	}
		1643
		1644	void
		1645	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1646	CODE:
		1647	{
		1648	dREQ (REQ_C_GET);
		1649	req->dbc = dbc;
		1650	req->uint1 = flags;
		1651	if ((flags & DB_SET) == DB_SET
		1652	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1653	sv_to_dbt (&req->dbt1, key);
		1654	else
		1655	req->dbt1.flags = DB_DBT_MALLOC;
		1656
		1657	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1658
		1659	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1660	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1661	sv_to_dbt (&req->dbt3, data);
		1662	else
		1663	req->dbt3.flags = DB_DBT_MALLOC;
		1664
		1665	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1666	REQ_SEND;
		1667	}
		1668
		1669	void
		1670	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1671	CODE:
		1672	{
		1673	dREQ (REQ_C_PGET);
		1674	req->dbc = dbc;
		1675	req->uint1 = flags;
		1676	if ((flags & DB_SET) == DB_SET
		1677	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1678	sv_to_dbt (&req->dbt1, key);
		1679	else
		1680	req->dbt1.flags = DB_DBT_MALLOC;
		1681
		1682	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1683
		1684	req->dbt2.flags = DB_DBT_MALLOC;
		1685	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1686
		1687	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1688	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1689	sv_to_dbt (&req->dbt3, data);
		1690	else
		1691	req->dbt3.flags = DB_DBT_MALLOC;
		1692
		1693	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1694	REQ_SEND;
		1695	}
		1696
		1697	void
		1698	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1699	CODE:
		1700	{
		1701	dREQ (REQ_C_DEL);
		1702	req->dbc = dbc;
		1703	req->uint1 = flags;
		1704	REQ_SEND;
		1705	}
		1706
		1707
		1708	void
		1709	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1710	CODE:
		1711	{
		1712	dREQ (REQ_SEQ_OPEN);
		1713	req->seq = seq;
		1714	req->txn = txnid;
		1715	req->uint1 = flags | DB_THREAD;
		1716	sv_to_dbt (&req->dbt1, key);
		1717	REQ_SEND;
		1718	}
		1719
		1720	void
		1721	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1722	CODE:
		1723	{
		1724	dREQ (REQ_SEQ_CLOSE);
		1725	req->seq = seq;
		1726	req->uint1 = flags;
		1727	REQ_SEND;
		1728	ptr_nuke (ST (0));
		1729	}
		1730
		1731	void
		1732	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)
		1733	CODE:
		1734	{
		1735	dREQ (REQ_SEQ_GET);
		1736	req->seq = seq;
		1737	req->txn = txnid;
		1738	req->int1 = delta;
		1739	req->uint1 = flags;
		1740	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1741	REQ_SEND;
		1742	}
		1743
		1744	void
		1745	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1746	CODE:
		1747	{
		1748	dREQ (REQ_SEQ_REMOVE);
		1749	req->seq = seq;
		1750	req->txn = txnid;
		1751	req->uint1 = flags;
		1752	REQ_SEND;
		1753	}
		1754
		1755
		1756	MODULE = BDB PACKAGE = BDB::Env
		1757
		1758	void
		1759	DESTROY (DB_ENV_ornuked *env)
		1760	CODE:
		1761	if (env)
		1762	env->close (env, 0);
		1763
		1764	int set_data_dir (DB_ENV *env, const char *dir)
		1765	CODE:
		1766	RETVAL = env->set_data_dir (env, dir);
		1767	OUTPUT:
		1768	RETVAL
		1769
		1770	int set_tmp_dir (DB_ENV *env, const char *dir)
		1771	CODE:
		1772	RETVAL = env->set_tmp_dir (env, dir);
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int set_lg_dir (DB_ENV *env, const char *dir)
		1777	CODE:
		1778	RETVAL = env->set_lg_dir (env, dir);
		1779	OUTPUT:
		1780	RETVAL
		1781
		1782	int set_shm_key (DB_ENV *env, long shm_key)
		1783	CODE:
		1784	RETVAL = env->set_shm_key (env, shm_key);
		1785	OUTPUT:
		1786	RETVAL
		1787
		1788	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1789	CODE:
		1790	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1791	OUTPUT:
		1792	RETVAL
		1793
		1794	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1795	CODE:
		1796	RETVAL = env->set_flags (env, flags, onoff);
		1797	OUTPUT:
		1798	RETVAL
		1799
		1800	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1801	CODE:
		1802	env->set_errfile (env, errfile);
		1803
		1804	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1805	CODE:
		1806	env->set_msgfile (env, msgfile);
		1807
		1808	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1809	CODE:
		1810	RETVAL = env->set_verbose (env, which, onoff);
		1811	OUTPUT:
		1812	RETVAL
		1813
		1814	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1815	CODE:
		1816	RETVAL = env->set_encrypt (env, password, flags);
		1817	OUTPUT:
		1818	RETVAL
		1819
		1820	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1821	CODE:
		1822	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1827	CODE:
		1828	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1833	CODE:
		1834	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1839	CODE:
		1840	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1841	OUTPUT:
		1842	RETVAL
		1843
		1844	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1845	CODE:
		1846	RETVAL = env->set_lk_detect (env, detect);
		1847	OUTPUT:
		1848	RETVAL
		1849
		1850	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1851	CODE:
		1852	RETVAL = env->set_lk_max_lockers (env, max);
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int set_lk_max_locks (DB_ENV *env, U32 max)
		1857	CODE:
		1858	RETVAL = env->set_lk_max_locks (env, max);
		1859	OUTPUT:
		1860	RETVAL
		1861
		1862	int set_lk_max_objects (DB_ENV *env, U32 max)
		1863	CODE:
		1864	RETVAL = env->set_lk_max_objects (env, max);
		1865	OUTPUT:
		1866	RETVAL
		1867
		1868	int set_lg_bsize (DB_ENV *env, U32 max)
		1869	CODE:
		1870	RETVAL = env->set_lg_bsize (env, max);
		1871	OUTPUT:
		1872	RETVAL
		1873
		1874	int set_lg_max (DB_ENV *env, U32 max)
		1875	CODE:
		1876	RETVAL = env->set_lg_max (env, max);
		1877	OUTPUT:
		1878	RETVAL
		1879
		1880	int mutex_set_max (DB_ENV *env, U32 max)
		1881	CODE:
		1882	RETVAL = env->mutex_set_max (env, max);
		1883	OUTPUT:
		1884	RETVAL
		1885
		1886	int mutex_set_increment (DB_ENV *env, U32 increment)
		1887	CODE:
		1888	RETVAL = env->mutex_set_increment (env, increment);
		1889	OUTPUT:
		1890	RETVAL
		1891
		1892	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1893	CODE:
		1894	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1895	OUTPUT:
		1896	RETVAL
		1897
		1898	int mutex_set_align (DB_ENV *env, U32 align)
		1899	CODE:
		1900	RETVAL = env->mutex_set_align (env, align);
		1901	OUTPUT:
		1902	RETVAL
		1903
		1904	DB_TXN *
		1905	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1906	CODE:
		1907	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1908	if (errno)
		1909	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1910	OUTPUT:
		1911	RETVAL
		1912
		1913	MODULE = BDB PACKAGE = BDB::Db
		1914
		1915	void
		1916	DESTROY (DB_ornuked *db)
		1917	CODE:
		1918	if (db)
		1919	{
		1920	SV *env = (SV *)db->app_private;
		1921	db->close (db, 0);
		1922	SvREFCNT_dec (env);
		1923	}
		1924
		1925	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1926	CODE:
		1927	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1928	OUTPUT:
		1929	RETVAL
		1930
		1931	int set_flags (DB *db, U32 flags)
		1932	CODE:
		1933	RETVAL = db->set_flags (db, flags);
		1934	OUTPUT:
		1935	RETVAL
		1936
		1937	int set_encrypt (DB *db, const char *password, U32 flags)
		1938	CODE:
		1939	RETVAL = db->set_encrypt (db, password, flags);
		1940	OUTPUT:
		1941	RETVAL
		1942
		1943	int set_lorder (DB *db, int lorder)
		1944	CODE:
		1945	RETVAL = db->set_lorder (db, lorder);
		1946	OUTPUT:
		1947	RETVAL
		1948
		1949	int set_bt_minkey (DB *db, U32 minkey)
		1950	CODE:
		1951	RETVAL = db->set_bt_minkey (db, minkey);
		1952	OUTPUT:
		1953	RETVAL
		1954
		1955	int set_re_delim (DB *db, int delim)
		1956	CODE:
		1957	RETVAL = db->set_re_delim (db, delim);
		1958	OUTPUT:
		1959	RETVAL
		1960
		1961	int set_re_pad (DB *db, int re_pad)
		1962	CODE:
		1963	RETVAL = db->set_re_pad (db, re_pad);
		1964	OUTPUT:
		1965	RETVAL
		1966
		1967	int set_re_source (DB *db, char *source)
		1968	CODE:
		1969	RETVAL = db->set_re_source (db, source);
		1970	OUTPUT:
		1971	RETVAL
		1972
		1973	int set_re_len (DB *db, U32 re_len)
		1974	CODE:
		1975	RETVAL = db->set_re_len (db, re_len);
		1976	OUTPUT:
		1977	RETVAL
		1978
		1979	int set_h_ffactor (DB *db, U32 h_ffactor)
		1980	CODE:
		1981	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1982	OUTPUT:
		1983	RETVAL
		1984
		1985	int set_h_nelem (DB *db, U32 h_nelem)
		1986	CODE:
		1987	RETVAL = db->set_h_nelem (db, h_nelem);
		1988	OUTPUT:
		1989	RETVAL
		1990
		1991	int set_q_extentsize (DB *db, U32 extentsize)
		1992	CODE:
		1993	RETVAL = db->set_q_extentsize (db, extentsize);
		1994	OUTPUT:
		1995	RETVAL
		1996
		1997	DBC *
		1998	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		1999	CODE:
		2000	errno = db->cursor (db, txn, &RETVAL, flags);
		2001	if (errno)
		2002	croak ("DB->cursor: %s", db_strerror (errno));
		2003	OUTPUT:
		2004	RETVAL
		2005
		2006	DB_SEQUENCE *
		2007	sequence (DB *db, U32 flags = 0)
		2008	CODE:
		2009	{
		2010	errno = db_sequence_create (&RETVAL, db, flags);
		2011	if (errno)
		2012	croak ("db_sequence_create: %s", db_strerror (errno));
		2013	}
		2014	OUTPUT:
		2015	RETVAL
		2016
		2017
		2018	MODULE = BDB PACKAGE = BDB::Txn
		2019
		2020	void
		2021	DESTROY (DB_TXN_ornuked *txn)
		2022	CODE:
		2023	if (txn)
		2024	txn->abort (txn);
		2025
		2026	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2027	CODE:
		2028	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2029	OUTPUT:
		2030	RETVAL
		2031
		2032	int failed (DB_TXN *txn)
		2033	CODE:
		2034	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2035	OUTPUT:
		2036	RETVAL
		2037
		2038
		2039	MODULE = BDB PACKAGE = BDB::Cursor
		2040
		2041	void
		2042	DESTROY (DBC_ornuked *dbc)
		2043	CODE:
		2044	if (dbc)
		2045	dbc->c_close (dbc);
		2046
		2047	#if DB_VERSION_MINOR >= 6
		2048
		2049	int set_priority (DBC *dbc, int priority)
		2050	CODE:
		2051	dbc->set_priority (dbc, priority);
		2052
		2053	#endif
		2054
		2055	MODULE = BDB PACKAGE = BDB::Sequence
		2056
		2057	void
		2058	DESTROY (DB_SEQUENCE_ornuked *seq)
		2059	CODE:
		2060	if (seq)
		2061	seq->close (seq, 0);
		2062
		2063	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2064	CODE:
		2065	RETVAL = seq->initial_value (seq, value);
		2066	OUTPUT:
		2067	RETVAL
		2068
		2069	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2070	CODE:
		2071	RETVAL = seq->set_cachesize (seq, size);
		2072	OUTPUT:
		2073	RETVAL
		2074
		2075	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2076	CODE:
		2077	RETVAL = seq->set_flags (seq, flags);
		2078	OUTPUT:
		2079	RETVAL
		2080
		2081	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2082	CODE:
		2083	RETVAL = seq->set_range (seq, min, max);
		2084	OUTPUT:
		2085	RETVAL
		2086
		2087

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