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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 1.29 by root, Tue Dec 25 14:23:21 2007 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 SV SV8; /* byte-sv, used for argument-checking */
40	# else	46	typedef char *octetstring;
41	# define WORDACCESS_UNSAFE 1	47
42	# endif	48	static SV *prepare_cb;
		49
		50	#if DB_VERSION_MINOR >= 6
		51	# define c_close close
		52	# define c_count count
		53	# define c_del del
		54	# define c_dup dup
		55	# define c_get get
		56	# define c_pget pget
		57	# define c_put put
43	#endif	58	#endif
44		59
45	typedef SV SV8; /* byte-sv, used for argument-checking */	60	static void
		61	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		62	{
		63	printf ("err[%s]\n", msg);
		64	}
46		65
		66	static void
		67	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		68	{
		69	printf ("msg[%s]\n", msg);
		70	}
		71
		72	static char *
		73	strdup_ornull (const char *s)
		74	{
		75	return s ? strdup (s) : 0;
		76	}
		77
		78	static void
		79	sv_to_dbt (DBT *dbt, SV *sv)
		80	{
		81	STRLEN len;
		82	char *data = SvPVbyte (sv, len);
		83
		84	dbt->data = malloc (len);
		85	memcpy (dbt->data, data, len);
		86	dbt->size = len;
		87	dbt->flags = DB_DBT_REALLOC;
		88	}
		89
		90	static void
		91	dbt_to_sv (SV *sv, DBT *dbt)
		92	{
		93	if (sv)
		94	{
		95	SvREADONLY_off (sv);
		96	sv_setpvn_mg (sv, dbt->data, dbt->size);
		97	SvREFCNT_dec (sv);
		98	}
		99
		100	free (dbt->data);
		101	}
		102
47	enum	103	enum {
48	{
49	REQ_QUIT,	104	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	105	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	106	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		107	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		108	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		109	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		110	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		111	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	112	};
53		113
54	typedef struct aio_cb	114	typedef struct bdb_cb
55	{	115	{
56	struct aio_cb *volatile next;	116	struct bdb_cb *volatile next;
57	SV *callback;	117	SV *callback;
58	int type, pri, errorno;	118	int type, pri, result;
59		119
60	DB_ENV *env;	120	DB_ENV *env;
61	DB *db;	121	DB *db;
62	DB_TXN *txn;	122	DB_TXN *txn;
63	DBC *cursor;	123	DBC *dbc;
		124
		125	UV uv1;
64	int int1, int2;	126	int int1, int2;
65	U32 uint1, uint2;	127	U32 uint1, uint2;
66	char *buf1, *buf2;	128	char *buf1, *buf2;
67	} aio_cb;	129	SV *sv1, *sv2, *sv3;
68		130
		131	DBT dbt1, dbt2, dbt3;
		132	DB_KEY_RANGE key_range;
		133	DB_SEQUENCE *seq;
		134	db_seq_t seq_t;
		135	} bdb_cb;
		136
69	typedef aio_cb *aio_req;	137	typedef bdb_cb *bdb_req;
70		138
71	enum {	139	enum {
72	PRI_MIN = -4,	140	PRI_MIN = -4,
73	PRI_MAX = 4,	141	PRI_MAX = 4,
74		142
…		…
91		159
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	160	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		161
94	static unsigned int started, idle, wanted;	162	static unsigned int started, idle, wanted;
95		163
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 */	164	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	165	static mutex_t wrklock = X_MUTEX_INIT;
107		166
108	typedef struct worker {	167	typedef struct worker {
109	/* locked by wrklock */	168	/* locked by wrklock */
110	struct worker *prev, *next;	169	struct worker *prev, *next;
111		170
112	pthread_t tid;	171	thread_t tid;
113		172
114	/* locked by reslock, reqlock or wrklock */	173	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	174	bdb_req req; /* currently processed request */
116	void *dbuf;	175	void *dbuf;
117	DIR *dirp;	176	DIR *dirp;
118	} worker;	177	} worker;
119		178
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	179	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	191	}
133		192
134	static volatile unsigned int nreqs, nready, npending;	193	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	194	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	195	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	196	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		197
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	198	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	199	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	200	static cond_t reqwait = X_COND_INIT;
142		201
143	#if WORDACCESS_UNSAFE	202	#if WORDACCESS_UNSAFE
144		203
145	static unsigned int get_nready ()	204	static unsigned int get_nready ()
146	{	205	{
147	unsigned int retval;	206	unsigned int retval;
148		207
149	LOCK (reqlock);	208	X_LOCK (reqlock);
150	retval = nready;	209	retval = nready;
151	UNLOCK (reqlock);	210	X_UNLOCK (reqlock);
152		211
153	return retval;	212	return retval;
154	}	213	}
155		214
156	static unsigned int get_npending ()	215	static unsigned int get_npending ()
157	{	216	{
158	unsigned int retval;	217	unsigned int retval;
159		218
160	LOCK (reslock);	219	X_LOCK (reslock);
161	retval = npending;	220	retval = npending;
162	UNLOCK (reslock);	221	X_UNLOCK (reslock);
163		222
164	return retval;	223	return retval;
165	}	224	}
166		225
167	static unsigned int get_nthreads ()	226	static unsigned int get_nthreads ()
168	{	227	{
169	unsigned int retval;	228	unsigned int retval;
170		229
171	LOCK (wrklock);	230	X_LOCK (wrklock);
172	retval = started;	231	retval = started;
173	UNLOCK (wrklock);	232	X_UNLOCK (wrklock);
174		233
175	return retval;	234	return retval;
176	}	235	}
177		236
178	#else	237	#else
…		…
187	* a somewhat faster data structure might be nice, but	246	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	247	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	248	* per shift, the most expensive operation.
190	*/	249	*/
191	typedef struct {	250	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	251	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	252	int size;
194	} reqq;	253	} reqq;
195		254
196	static reqq req_queue;	255	static reqq req_queue;
197	static reqq res_queue;	256	static reqq res_queue;
198		257
199	int reqq_push (reqq *q, aio_req req)	258	int reqq_push (reqq *q, bdb_req req)
200	{	259	{
201	int pri = req->pri;	260	int pri = req->pri;
202	req->next = 0;	261	req->next = 0;
203		262
204	if (q->qe[pri])	263	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	269	q->qe[pri] = q->qs[pri] = req;
211		270
212	return q->size++;	271	return q->size++;
213	}	272	}
214		273
215	aio_req reqq_shift (reqq *q)	274	bdb_req reqq_shift (reqq *q)
216	{	275	{
217	int pri;	276	int pri;
218		277
219	if (!q->size)	278	if (!q->size)
220	return 0;	279	return 0;
221		280
222	--q->size;	281	--q->size;
223		282
224	for (pri = NUM_PRI; pri--; )	283	for (pri = NUM_PRI; pri--; )
225	{	284	{
226	aio_req req = q->qs[pri];	285	bdb_req req = q->qs[pri];
227		286
228	if (req)	287	if (req)
229	{	288	{
230	if (!(q->qs[pri] = req->next))	289	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	290	q->qe[pri] = 0;
…		…
236		295
237	abort ();	296	abort ();
238	}	297	}
239		298
240	static int poll_cb ();	299	static int poll_cb ();
241	static void req_free (aio_req req);	300	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);	301	static void req_cancel (bdb_req req);
243		302
244	static int req_invoke (aio_req req)	303	static int req_invoke (bdb_req req)
245	{	304	{
246	dSP;	305	dSP;
247		306
248	if (SvOK (req->callback))	307	if (SvOK (req->callback))
249	{	308	{
250	ENTER;	309	ENTER;
251	SAVETMPS;	310	SAVETMPS;
252	PUSHMARK (SP);	311	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		312
255	switch (req->type)	313	switch (req->type)
256	{	314	{
		315	case REQ_DB_CLOSE:
		316	SvREFCNT_dec (req->sv1);
		317	break;
		318
		319	case REQ_DB_GET:
		320	case REQ_DB_PGET:
		321	dbt_to_sv (req->sv3, &req->dbt3);
		322	break;
		323
		324	case REQ_C_GET:
		325	case REQ_C_PGET:
		326	dbt_to_sv (req->sv1, &req->dbt1);
		327	dbt_to_sv (req->sv2, &req->dbt2);
		328	dbt_to_sv (req->sv3, &req->dbt3);
		329	break;
		330
		331	case REQ_DB_PUT:
		332	case REQ_C_PUT:
		333	dbt_to_sv (0, &req->dbt1);
		334	dbt_to_sv (0, &req->dbt2);
		335	break;
		336
		337	case REQ_DB_KEY_RANGE:
		338	{
		339	AV *av = newAV ();
		340
		341	av_push (av, newSVnv (req->key_range.less));
		342	av_push (av, newSVnv (req->key_range.equal));
		343	av_push (av, newSVnv (req->key_range.greater));
		344
		345	SvREADONLY_off (req->sv1);
		346	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		347	SvREFCNT_dec (req->sv1);
		348	}
		349	break;
		350
		351	case REQ_SEQ_GET:
		352	SvREADONLY_off (req->sv1);
		353
		354	if (sizeof (IV) > 4)
		355	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		356	else
		357	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		358
		359	SvREFCNT_dec (req->sv1);
		360	break;
257	}	361	}
		362
		363	errno = req->result;
258		364
259	PUTBACK;	365	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	366	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	367	SPAGAIN;
262		368
…		…
265	}	371	}
266		372
267	return !SvTRUE (ERRSV);	373	return !SvTRUE (ERRSV);
268	}	374	}
269		375
270	static void req_free (aio_req req)	376	static void req_free (bdb_req req)
271	{	377	{
272	free (req->buf1);	378	free (req->buf1);
273	free (req->buf2);	379	free (req->buf2);
274	Safefree (req);	380	Safefree (req);
275	}	381	}
276		382
277	static void *aio_proc(void *arg);	383	#ifdef USE_SOCKETS_AS_HANDLES
		384	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		385	#else
		386	# define TO_SOCKET(x) (x)
		387	#endif
		388
		389	static void
		390	create_respipe ()
		391	{
		392	#ifdef _WIN32
		393	int arg; /* argg */
		394	#endif
		395	int old_readfd = respipe [0];
		396
		397	if (respipe [1] >= 0)
		398	respipe_close (TO_SOCKET (respipe [1]));
		399
		400	#ifdef _WIN32
		401	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		402	#else
		403	if (pipe (respipe))
		404	#endif
		405	croak ("unable to initialize result pipe");
		406
		407	if (old_readfd >= 0)
		408	{
		409	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		410	croak ("unable to initialize result pipe(2)");
		411
		412	respipe_close (respipe [0]);
		413	respipe [0] = old_readfd;
		414	}
		415
		416	#ifdef _WIN32
		417	arg = 1;
		418	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		419	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		420	#else
		421	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		422	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		423	#endif
		424	croak ("unable to initialize result pipe(3)");
		425
		426	respipe_osf [0] = TO_SOCKET (respipe [0]);
		427	respipe_osf [1] = TO_SOCKET (respipe [1]);
		428	}
		429
		430	X_THREAD_PROC (bdb_proc);
278		431
279	static void start_thread (void)	432	static void start_thread (void)
280	{	433	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	434	worker *wrk = calloc (1, sizeof (worker));
285		435
286	if (!wrk)	436	if (!wrk)
287	croak ("unable to allocate worker thread data");	437	croak ("unable to allocate worker thread data");
288		438
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);	439	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	440	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	441	{
302	wrk->prev = &wrk_first;	442	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	443	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	444	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	445	wrk_first.next = wrk;
306	++started;	446	++started;
307	}	447	}
308	else	448	else
309	free (wrk);	449	free (wrk);
310		450
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	451	X_UNLOCK (wrklock);
313	}	452	}
314		453
315	static void maybe_start_thread ()	454	static void maybe_start_thread ()
316	{	455	{
317	if (get_nthreads () >= wanted)	456	if (get_nthreads () >= wanted)
…		…
322	return;	461	return;
323		462
324	start_thread ();	463	start_thread ();
325	}	464	}
326		465
327	static void req_send (aio_req req)	466	static void req_send (bdb_req req)
328	{	467	{
		468	SV *wait_callback = 0;
		469
		470	// synthesize callback if none given
		471	if (!SvOK (req->callback))
		472	{
		473	int count;
		474
		475	dSP;
		476	PUSHMARK (SP);
		477	PUTBACK;
		478	count = call_sv (prepare_cb, G_ARRAY);
		479	SPAGAIN;
		480
		481	if (count != 2)
		482	croak ("prepare callback must return exactly two values\n");
		483
		484	wait_callback = POPs;
		485	SvREFCNT_dec (req->callback);
		486	req->callback = SvREFCNT_inc (POPs);
		487	}
		488
329	++nreqs;	489	++nreqs;
330		490
331	LOCK (reqlock);	491	X_LOCK (reqlock);
332	++nready;	492	++nready;
333	reqq_push (&req_queue, req);	493	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	494	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	495	X_UNLOCK (reqlock);
336		496
337	maybe_start_thread ();	497	maybe_start_thread ();
		498
		499	if (wait_callback)
		500	{
		501	dSP;
		502	PUSHMARK (SP);
		503	PUTBACK;
		504	call_sv (wait_callback, G_DISCARD);
		505	}
338	}	506	}
339		507
340	static void end_thread (void)	508	static void end_thread (void)
341	{	509	{
342	aio_req req;	510	bdb_req req;
343		511
344	Newz (0, req, 1, aio_cb);	512	Newz (0, req, 1, bdb_cb);
345		513
346	req->type = REQ_QUIT;	514	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	515	req->pri = PRI_MAX + PRI_BIAS;
348		516
349	LOCK (reqlock);	517	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	518	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	519	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	520	X_UNLOCK (reqlock);
353		521
354	LOCK (wrklock);	522	X_LOCK (wrklock);
355	--started;	523	--started;
356	UNLOCK (wrklock);	524	X_UNLOCK (wrklock);
357	}	525	}
358		526
359	static void set_max_idle (int nthreads)	527	static void set_max_idle (int nthreads)
360	{	528	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	529	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	530	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	531	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	532	}
365		533
366	static void min_parallel (int nthreads)	534	static void min_parallel (int nthreads)
367	{	535	{
368	if (wanted < nthreads)	536	if (wanted < nthreads)
…		…
383	fd_set rfd;	551	fd_set rfd;
384		552
385	while (nreqs)	553	while (nreqs)
386	{	554	{
387	int size;	555	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	556	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	557	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	558	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		559
392	if (size)	560	if (size)
393	return;	561	return;
394		562
395	maybe_start_thread ();	563	maybe_start_thread ();
396		564
397	FD_ZERO(&rfd);	565	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	566	FD_SET (respipe [0], &rfd);
399		567
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	568	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	569	}
402	}	570	}
403		571
404	static int poll_cb ()	572	static int poll_cb ()
405	{	573	{
406	dSP;	574	dSP;
407	int count = 0;	575	int count = 0;
408	int maxreqs = max_poll_reqs;	576	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	577	int do_croak = 0;
410	struct timeval tv_start, tv_now;	578	struct timeval tv_start, tv_now;
411	aio_req req;	579	bdb_req req;
412		580
413	if (max_poll_time)	581	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	582	gettimeofday (&tv_start, 0);
415		583
416	for (;;)	584	for (;;)
417	{	585	{
418	for (;;)	586	for (;;)
419	{	587	{
420	maybe_start_thread ();	588	maybe_start_thread ();
421		589
422	LOCK (reslock);	590	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	591	req = reqq_shift (&res_queue);
424		592
425	if (req)	593	if (req)
426	{	594	{
427	--npending;	595	--npending;
428		596
429	if (!res_queue.size)	597	if (!res_queue.size)
430	{	598	{
431	/* read any signals sent by the worker threads */	599	/* read any signals sent by the worker threads */
432	char buf [4];	600	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	601	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	602	;
435	}	603	}
436	}	604	}
437		605
438	UNLOCK (reslock);	606	X_UNLOCK (reslock);
439		607
440	if (!req)	608	if (!req)
441	break;	609	break;
442		610
443	--nreqs;	611	--nreqs;
…		…
473	}	641	}
474		642
475	return count;	643	return count;
476	}	644	}
477		645
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	/*****************************************************************************/	646	/*****************************************************************************/
491		647
492	static void *aio_proc (void *thr_arg)	648	X_THREAD_PROC (bdb_proc)
493	{	649	{
494	aio_req req;	650	bdb_req req;
495	struct timespec ts;	651	struct timespec ts;
496	worker *self = (worker *)thr_arg;	652	worker *self = (worker *)thr_arg;
497		653
498	/* try to distribute timeouts somewhat evenly */	654	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	655	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		656
502	for (;;)	657	for (;;)
503	{	658	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	659	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		660
506	LOCK (reqlock);	661	X_LOCK (reqlock);
507		662
508	for (;;)	663	for (;;)
509	{	664	{
510	self->req = req = reqq_shift (&req_queue);	665	self->req = req = reqq_shift (&req_queue);
511		666
512	if (req)	667	if (req)
513	break;	668	break;
514		669
515	++idle;	670	++idle;
516		671
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	672	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	673	== ETIMEDOUT)
519	{	674	{
520	if (idle > max_idle)	675	if (idle > max_idle)
521	{	676	{
522	--idle;	677	--idle;
523	UNLOCK (reqlock);	678	X_UNLOCK (reqlock);
524	LOCK (wrklock);	679	X_LOCK (wrklock);
525	--started;	680	--started;
526	UNLOCK (wrklock);	681	X_UNLOCK (wrklock);
527	goto quit;	682	goto quit;
528	}	683	}
529		684
530	/* we are allowed to idle, so do so without any timeout */	685	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	686	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	687	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	688	}
534		689
535	--idle;	690	--idle;
536	}	691	}
537		692
538	--nready;	693	--nready;
539		694
540	UNLOCK (reqlock);	695	X_UNLOCK (reqlock);
541		696
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	697	switch (req->type)
545	{	698	{
546	case REQ_QUIT:	699	case REQ_QUIT:
		700	req->result = ENOSYS;
547	goto quit;	701	goto quit;
548		702
		703	case REQ_ENV_OPEN:
		704	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		705	break;
		706
		707	case REQ_ENV_CLOSE:
		708	req->result = req->env->close (req->env, req->uint1);
		709	break;
		710
		711	case REQ_ENV_TXN_CHECKPOINT:
		712	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		713	break;
		714
		715	case REQ_ENV_LOCK_DETECT:
		716	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		717	break;
		718
		719	case REQ_ENV_MEMP_SYNC:
		720	req->result = req->env->memp_sync (req->env, 0);
		721	break;
		722
		723	case REQ_ENV_MEMP_TRICKLE:
		724	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		725	break;
		726
		727	case REQ_DB_OPEN:
		728	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		729	break;
		730
		731	case REQ_DB_CLOSE:
		732	req->result = req->db->close (req->db, req->uint1);
		733	break;
		734
		735	case REQ_DB_COMPACT:
		736	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		737	break;
		738
		739	case REQ_DB_SYNC:
		740	req->result = req->db->sync (req->db, req->uint1);
		741	break;
		742
		743	case REQ_DB_UPGRADE:
		744	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		745	break;
		746
		747	case REQ_DB_PUT:
		748	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		749	break;
		750
		751	case REQ_DB_GET:
		752	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		753	break;
		754
		755	case REQ_DB_PGET:
		756	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		757	break;
		758
		759	case REQ_DB_DEL:
		760	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		761	break;
		762
		763	case REQ_DB_KEY_RANGE:
		764	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		765	break;
		766
		767	case REQ_TXN_COMMIT:
		768	req->result = req->txn->commit (req->txn, req->uint1);
		769	break;
		770
		771	case REQ_TXN_ABORT:
		772	req->result = req->txn->abort (req->txn);
		773	break;
		774
		775	case REQ_TXN_FINISH:
		776	if (req->txn->flags & TXN_DEADLOCK)
		777	{
		778	req->result = req->txn->abort (req->txn);
		779	if (!req->result)
		780	req->result = DB_LOCK_DEADLOCK;
		781	}
		782	else
		783	req->result = req->txn->commit (req->txn, req->uint1);
		784	break;
		785
		786	case REQ_C_CLOSE:
		787	req->result = req->dbc->c_close (req->dbc);
		788	break;
		789
		790	case REQ_C_COUNT:
		791	{
		792	db_recno_t recno;
		793	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		794	req->uv1 = recno;
		795	}
		796	break;
		797
		798	case REQ_C_PUT:
		799	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		800	break;
		801
		802	case REQ_C_GET:
		803	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		804	break;
		805
		806	case REQ_C_PGET:
		807	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		808	break;
		809
		810	case REQ_C_DEL:
		811	req->result = req->dbc->c_del (req->dbc, req->uint1);
		812	break;
		813
		814	case REQ_SEQ_OPEN:
		815	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		816	break;
		817
		818	case REQ_SEQ_CLOSE:
		819	req->result = req->seq->close (req->seq, req->uint1);
		820	break;
		821
		822	case REQ_SEQ_GET:
		823	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		824	break;
		825
		826	case REQ_SEQ_REMOVE:
		827	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		828	break;
		829
549	default:	830	default:
550	//req->result = ENOSYS;	831	req->result = ENOSYS;
551	break;	832	break;
552	}	833	}
553		834
554	//req->errorno = errno;	835	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		836	req->txn->flags |= TXN_DEADLOCK;
555		837
556	LOCK (reslock);	838	X_LOCK (reslock);
557		839
558	++npending;	840	++npending;
559		841
560	if (!reqq_push (&res_queue, req))	842	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	843	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	844	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		845
564	self->req = 0;	846	self->req = 0;
565	worker_clear (self);	847	worker_clear (self);
566		848
567	UNLOCK (reslock);	849	X_UNLOCK (reslock);
568	}	850	}
569		851
570	quit:	852	quit:
571	LOCK (wrklock);	853	X_LOCK (wrklock);
572	worker_free (self);	854	worker_free (self);
573	UNLOCK (wrklock);	855	X_UNLOCK (wrklock);
574		856
575	return 0;	857	return 0;
576	}	858	}
577		859
578	/*****************************************************************************/	860	/*****************************************************************************/
579		861
580	static void atfork_prepare (void)	862	static void atfork_prepare (void)
581	{	863	{
582	LOCK (wrklock);	864	X_LOCK (wrklock);
583	LOCK (reqlock);	865	X_LOCK (reqlock);
584	LOCK (reslock);	866	X_LOCK (reslock);
585	}	867	}
586		868
587	static void atfork_parent (void)	869	static void atfork_parent (void)
588	{	870	{
589	UNLOCK (reslock);	871	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	872	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	873	X_UNLOCK (wrklock);
592	}	874	}
593		875
594	static void atfork_child (void)	876	static void atfork_child (void)
595	{	877	{
596	aio_req prv;	878	bdb_req prv;
597		879
598	while (prv = reqq_shift (&req_queue))	880	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	881	req_free (prv);
600		882
601	while (prv = reqq_shift (&res_queue))	883	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	898	idle = 0;
617	nreqs = 0;	899	nreqs = 0;
618	nready = 0;	900	nready = 0;
619	npending = 0;	901	npending = 0;
620		902
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	903	create_respipe ();
624		904
625	atfork_parent ();	905	atfork_parent ();
626	}	906	}
627		907
628	#define dREQ(reqtype) \	908	#define dREQ(reqtype) \
629	aio_req req; \	909	bdb_req req; \
630	int req_pri = next_pri; \	910	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	911	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	912	\
633	if (SvOK (callback) && !SvROK (callback)) \	913	if (SvOK (callback) && !SvROK (callback)) \
634	croak ("callback must be undef or of reference type"); \	914	croak ("callback must be undef or of reference type"); \
635	\	915	\
636	Newz (0, req, 1, aio_cb); \	916	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	917	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	918	croak ("out of memory during bdb_req allocation"); \
639	\	919	\
640	req->callback = newSVsv (callback); \	920	req->callback = newSVsv (callback); \
641	req->type = (reqtype); \	921	req->type = (reqtype); \
642	req->pri = req_pri	922	req->pri = req_pri
643		923
644	#define REQ_SEND \	924	#define REQ_SEND \
645	req_send (req)	925	req_send (req)
646		926
647	#define SvPTR(var, arg, type, class) \	927	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	928	if (!SvOK (arg)) \
		929	{ \
		930	if (!nullok) \
		931	croak (# var " must be a " # class " object, not undef"); \
		932	\
649	(var) = 0; \	933	(var) = 0; \
		934	} \
650	else if (sv_derived_from ((arg), # class)) \	935	else if (sv_derived_from ((arg), # class)) \
651	{ \	936	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	937	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	938	(var) = INT2PTR (type, tmp); \
		939	if (!var) \
		940	croak (# var " is not a valid " # class " object anymore"); \
654	} \	941	} \
655	else \	942	else \
656	Perl_croak (# var " is not of type " # type)	943	croak (# var " is not of type " # class); \
657		944	\
		945
		946	static void
		947	ptr_nuke (SV *sv)
		948	{
		949	assert (SvROK (sv));
		950	sv_setiv (SvRV (sv), 0);
		951	}
		952
658	MODULE = BDB PACKAGE = BDB	953	MODULE = BDB PACKAGE = BDB
659		954
660	PROTOTYPES: ENABLE	955	PROTOTYPES: ENABLE
661		956
662	BOOT:	957	BOOT:
…		…
677	const_iv (INIT_TXN)	972	const_iv (INIT_TXN)
678	const_iv (RECOVER)	973	const_iv (RECOVER)
679	const_iv (INIT_TXN)	974	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	975	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	976	const_iv (CREATE)
		977	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	978	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	979	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	980	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	981	const_iv (PRIVATE)
686	const_iv (REGISTER)	982	const_iv (REGISTER)
…		…
692	const_iv (DSYNC_DB)	988	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)	989	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)	990	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)	991	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	992	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	993	const_iv (NOMMAP)
699	const_iv (NOPANIC)	994	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	995	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	996	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	997	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	998	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	999	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1000	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1001	const_iv (TXN_WRITE_NOSYNC)
		1002	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1003	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1004	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1005	const_iv (XA_CREATE)
710	const_iv (BTREE)	1006	const_iv (BTREE)
711	const_iv (HASH)	1007	const_iv (HASH)
712	const_iv (QUEUE)	1008	const_iv (QUEUE)
713	const_iv (RECNO)	1009	const_iv (RECNO)
714	const_iv (UNKNOWN)	1010	const_iv (UNKNOWN)
715	const_iv (EXCL)	1011	const_iv (EXCL)
		1012	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	1013	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1014	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1015	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1016	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1017	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1018	const_iv (DUP)
723	const_iv (DUPSORT)	1019	const_iv (DUPSORT)
724	const_iv (RECNUM)	1020	const_iv (RECNUM)
725	const_iv (RENUMBER)	1021	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1022	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	1023	const_iv (INORDER)
728	const_iv (CONSUME)	1024	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1025	const_iv (CONSUME_WAIT)
		1026	const_iv (GET_BOTH)
		1027	const_iv (GET_BOTH_RANGE)
		1028	//const_iv (SET_RECNO)
		1029	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1030	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1031	const_iv (JOIN_ITEM)
		1032	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1033	const_iv (RMW)
733		1034
734	const_iv (NOTFOUND)	1035	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1036	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1037	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1038	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1039	const_iv (RUNRECOVERY)
		1040	const_iv (OLD_VERSION)
		1041	const_iv (REP_HANDLE_DEAD)
		1042	const_iv (REP_LOCKOUT)
		1043	const_iv (SECONDARY_BAD)
		1044
		1045	const_iv (FREE_SPACE)
		1046	const_iv (FREELIST_ONLY)
		1047
		1048	const_iv (APPEND)
		1049	const_iv (NODUPDATA)
		1050	const_iv (NOOVERWRITE)
		1051
		1052	const_iv (TXN_NOWAIT)
		1053	const_iv (TXN_SYNC)
		1054
		1055	const_iv (SET_LOCK_TIMEOUT)
		1056	const_iv (SET_TXN_TIMEOUT)
		1057
		1058	const_iv (FIRST)
		1059	const_iv (NEXT)
		1060	const_iv (NEXT_DUP)
		1061	const_iv (NEXT_NODUP)
		1062	const_iv (PREV)
		1063	const_iv (PREV_NODUP)
		1064	const_iv (SET)
		1065	const_iv (SET_RANGE)
		1066	const_iv (LAST)
		1067	const_iv (BEFORE)
		1068	const_iv (AFTER)
		1069	const_iv (CURRENT)
		1070	const_iv (KEYFIRST)
		1071	const_iv (KEYLAST)
		1072	const_iv (NODUPDATA)
		1073
		1074	const_iv (FORCE)
		1075
		1076	const_iv (LOCK_DEFAULT)
		1077	const_iv (LOCK_EXPIRE)
		1078	const_iv (LOCK_MAXLOCKS)
		1079	const_iv (LOCK_MAXWRITE)
		1080	const_iv (LOCK_MINLOCKS)
		1081	const_iv (LOCK_MINWRITE)
		1082	const_iv (LOCK_OLDEST)
		1083	const_iv (LOCK_RANDOM)
		1084	const_iv (LOCK_YOUNGEST)
		1085
		1086	const_iv (SEQ_DEC)
		1087	const_iv (SEQ_INC)
		1088	const_iv (SEQ_WRAP)
		1089
		1090	const_iv (BUFFER_SMALL)
		1091	const_iv (DONOTINDEX)
		1092	const_iv (KEYEMPTY )
		1093	const_iv (KEYEXIST )
		1094	const_iv (LOCK_DEADLOCK)
		1095	const_iv (LOCK_NOTGRANTED)
		1096	const_iv (LOG_BUFFER_FULL)
		1097	const_iv (NOSERVER)
		1098	const_iv (NOSERVER_HOME)
		1099	const_iv (NOSERVER_ID)
		1100	const_iv (NOTFOUND)
		1101	const_iv (PAGE_NOTFOUND)
		1102	const_iv (REP_DUPMASTER)
		1103	const_iv (REP_HANDLE_DEAD)
		1104	const_iv (REP_HOLDELECTION)
		1105	const_iv (REP_IGNORE)
		1106	const_iv (REP_ISPERM)
		1107	const_iv (REP_JOIN_FAILURE)
		1108	const_iv (REP_LOCKOUT)
		1109	const_iv (REP_NEWMASTER)
		1110	const_iv (REP_NEWSITE)
		1111	const_iv (REP_NOTPERM)
		1112	const_iv (REP_UNAVAIL)
		1113	const_iv (RUNRECOVERY)
		1114	const_iv (SECONDARY_BAD)
		1115	const_iv (VERIFY_BAD)
		1116	const_iv (VERSION_MISMATCH)
		1117
		1118	const_iv (VERB_DEADLOCK)
		1119	const_iv (VERB_RECOVERY)
		1120	const_iv (VERB_REGISTER)
		1121	const_iv (VERB_REPLICATION)
		1122	const_iv (VERB_WAITSFOR)
		1123
		1124	const_iv (VERSION_MAJOR)
		1125	const_iv (VERSION_MINOR)
		1126	const_iv (VERSION_PATCH)
		1127	#if DB_VERSION_MINOR >= 5
		1128	const_iv (MULTIVERSION)
		1129	const_iv (TXN_SNAPSHOT)
		1130	#endif
		1131	#if DB_VERSION_MINOR >= 6
		1132	const_iv (PREV_DUP)
		1133	const_iv (PRIORITY_UNCHANGED)
		1134	const_iv (PRIORITY_VERY_LOW)
		1135	const_iv (PRIORITY_LOW)
		1136	const_iv (PRIORITY_DEFAULT)
		1137	const_iv (PRIORITY_HIGH)
		1138	const_iv (PRIORITY_VERY_HIGH)
		1139	#endif
739	};	1140	};
740		1141
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1142	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1143	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1144
744	create_pipe ();	1145	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1146	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1147
		1148	create_respipe ();
		1149
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1150	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1151	#ifdef _WIN32
		1152	X_MUTEX_CHECK (wrklock);
		1153	X_MUTEX_CHECK (reslock);
		1154	X_MUTEX_CHECK (reqlock);
		1155
		1156	X_COND_CHECK (reqwait);
		1157	#endif
746	}	1158	}
747		1159
748	void	1160	void
749	max_poll_reqs (int nreqs)	1161	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1162	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1191	max_outstanding = maxreqs;
780	OUTPUT:	1192	OUTPUT:
781	RETVAL	1193	RETVAL
782		1194
783	int	1195	int
784	bdbreq_pri (int pri = 0)	1196	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1197	PROTOTYPE: ;$
786	CODE:	1198	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1199	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1200	if (items > 0)
789	{	1201	{
…		…
793	}	1205	}
794	OUTPUT:	1206	OUTPUT:
795	RETVAL	1207	RETVAL
796		1208
797	void	1209	void
798	bdbreq_nice (int nice = 0)	1210	dbreq_nice (int nice = 0)
799	CODE:	1211	CODE:
800	nice = next_pri - nice;	1212	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1213	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1214	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1215	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1223	poll_wait ();
812	poll_cb ();	1224	poll_cb ();
813	}	1225	}
814		1226
815	int	1227	int
816	poll()	1228	poll ()
817	PROTOTYPE:	1229	PROTOTYPE:
818	CODE:	1230	CODE:
819	poll_wait ();	1231	poll_wait ();
820	RETVAL = poll_cb ();	1232	RETVAL = poll_cb ();
821	OUTPUT:	1233	OUTPUT:
822	RETVAL	1234	RETVAL
823		1235
824	int	1236	int
825	poll_fileno()	1237	poll_fileno ()
826	PROTOTYPE:	1238	PROTOTYPE:
827	CODE:	1239	CODE:
828	RETVAL = respipe [0];	1240	RETVAL = respipe [0];
829	OUTPUT:	1241	OUTPUT:
830	RETVAL	1242	RETVAL
831		1243
832	int	1244	int
833	poll_cb(...)	1245	poll_cb (...)
834	PROTOTYPE:	1246	PROTOTYPE:
835	CODE:	1247	CODE:
836	RETVAL = poll_cb ();	1248	RETVAL = poll_cb ();
837	OUTPUT:	1249	OUTPUT:
838	RETVAL	1250	RETVAL
839		1251
840	void	1252	void
841	poll_wait()	1253	poll_wait ()
842	PROTOTYPE:	1254	PROTOTYPE:
843	CODE:	1255	CODE:
844	poll_wait ();	1256	poll_wait ();
845		1257
846	int	1258	int
847	nreqs()	1259	nreqs ()
848	PROTOTYPE:	1260	PROTOTYPE:
849	CODE:	1261	CODE:
850	RETVAL = nreqs;	1262	RETVAL = nreqs;
851	OUTPUT:	1263	OUTPUT:
852	RETVAL	1264	RETVAL
853		1265
854	int	1266	int
855	nready()	1267	nready ()
856	PROTOTYPE:	1268	PROTOTYPE:
857	CODE:	1269	CODE:
858	RETVAL = get_nready ();	1270	RETVAL = get_nready ();
859	OUTPUT:	1271	OUTPUT:
860	RETVAL	1272	RETVAL
861		1273
862	int	1274	int
863	npending()	1275	npending ()
864	PROTOTYPE:	1276	PROTOTYPE:
865	CODE:	1277	CODE:
866	RETVAL = get_npending ();	1278	RETVAL = get_npending ();
867	OUTPUT:	1279	OUTPUT:
868	RETVAL	1280	RETVAL
869		1281
870	int	1282	int
871	nthreads()	1283	nthreads ()
872	PROTOTYPE:	1284	PROTOTYPE:
873	CODE:	1285	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1286	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1287	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1288	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1289	OUTPUT:
878	RETVAL	1290	RETVAL
879		1291
		1292	void
		1293	set_sync_prepare (SV *cb)
		1294	PROTOTYPE: &
		1295	CODE:
		1296	SvREFCNT_dec (prepare_cb);
		1297	prepare_cb = newSVsv (cb);
		1298
		1299	char *
		1300	strerror (int errorno = errno)
		1301	PROTOTYPE: ;$
		1302	CODE:
		1303	RETVAL = db_strerror (errorno);
		1304	OUTPUT:
		1305	RETVAL
		1306
880	DB_ENV *	1307	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1308	db_env_create (U32 env_flags = 0)
882	CODE:	1309	CODE:
883	{	1310	{
884	int err = db_env_create (&RETVAL, env_flags);	1311	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1312	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1313	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1314
		1315	if (0)
		1316	{
		1317	RETVAL->set_errcall (RETVAL, debug_errcall);
		1318	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1319	}
		1320	}
		1321	OUTPUT:
		1322	RETVAL
		1323
889	void	1324	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1325	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1326	CODE:
892	{	1327	{
893	dREQ (REQ_ENV_OPEN);	1328	dREQ (REQ_ENV_OPEN);
		1329
894	req->env = env;	1330	req->env = env;
895	req->uint1 = open_flags;	1331	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1332	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1333	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1334	REQ_SEND;
899	}	1335	}
900		1336
901	void	1337	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1338	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1339	CODE:
904	{	1340	{
905	dREQ (REQ_ENV_CLOSE);	1341	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1342	req->env = env;
907	req->uint1 = flags;	1343	req->uint1 = flags;
908	REQ_SEND;	1344	REQ_SEND;
		1345	ptr_nuke (ST (0));
909	}	1346	}
		1347
		1348	void
		1349	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1350	CODE:
		1351	{
		1352	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1353	req->env = env;
		1354	req->uint1 = kbyte;
		1355	req->int1 = min;
		1356	req->uint2 = flags;
		1357	REQ_SEND;
		1358	}
		1359
		1360	void
		1361	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1362	CODE:
		1363	{
		1364	dREQ (REQ_ENV_LOCK_DETECT);
		1365	req->env = env;
		1366	req->uint1 = flags;
		1367	req->uint2 = atype;
		1368	REQ_SEND;
		1369	}
		1370
		1371	void
		1372	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1373	CODE:
		1374	{
		1375	dREQ (REQ_ENV_MEMP_SYNC);
		1376	req->env = env;
		1377	REQ_SEND;
		1378	}
		1379
		1380	void
		1381	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1382	CODE:
		1383	{
		1384	dREQ (REQ_ENV_MEMP_TRICKLE);
		1385	req->env = env;
		1386	req->int1 = percent;
		1387	REQ_SEND;
		1388	}
		1389
910		1390
911	DB *	1391	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1392	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1393	CODE:
914	{	1394	{
915	int err = db_create (&RETVAL, env, flags);	1395	errno = db_create (&RETVAL, env, flags);
916	if (err)	1396	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1397	croak ("db_create: %s", db_strerror (errno));
918	}
919		1398
		1399	if (RETVAL)
		1400	RETVAL->app_private = (void *)newSVsv (ST (0));
		1401	}
		1402	OUTPUT:
		1403	RETVAL
		1404
920	void	1405	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)	1406	db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
922	CODE:	1407	CODE:
923	{	1408	{
924	dREQ (REQ_DB_OPEN);	1409	dREQ (REQ_DB_OPEN);
925	req->db = db;	1410	req->db = db;
926	req->txn = txnid;	1411	req->txn = txnid;
927	req->buf1 = strdup (file);	1412	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1413	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1414	req->int1 = type;
930	req->uint1 = flags;	1415	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1416	req->int2 = mode;
932	REQ_SEND;	1417	REQ_SEND;
933	}	1418	}
934		1419
935	void	1420	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1421	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1422	CODE:
938	{	1423	{
939	dREQ (REQ_DB_CLOSE);	1424	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1425	req->db = db;
941	req->uint1 = flags;	1426	req->uint1 = flags;
		1427	req->sv1 = (SV *)db->app_private;
		1428	REQ_SEND;
		1429	ptr_nuke (ST (0));
		1430	}
		1431
		1432	void
		1433	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)
		1434	CODE:
		1435	{
		1436	dREQ (REQ_DB_COMPACT);
		1437	req->db = db;
		1438	req->txn = txn;
		1439	sv_to_dbt (&req->dbt1, start);
		1440	sv_to_dbt (&req->dbt2, stop);
		1441	req->uint1 = flags;
		1442	REQ_SEND;
		1443	}
		1444
		1445	void
		1446	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1447	CODE:
		1448	{
		1449	dREQ (REQ_DB_SYNC);
		1450	req->db = db;
		1451	req->uint1 = flags;
		1452	REQ_SEND;
		1453	}
		1454
		1455	void
		1456	db_upgrade (DB *db, octetstring file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1457	CODE:
		1458	{
		1459	dREQ (REQ_DB_SYNC);
		1460	req->db = db;
		1461	req->buf1 = strdup (file);
		1462	req->uint1 = flags;
		1463	REQ_SEND;
		1464	}
		1465
		1466	void
		1467	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1468	CODE:
		1469	{
		1470	dREQ (REQ_DB_KEY_RANGE);
		1471	req->db = db;
		1472	req->txn = txn;
		1473	sv_to_dbt (&req->dbt1, key);
		1474	req->uint1 = flags;
		1475	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1476	REQ_SEND;
		1477	}
		1478
		1479	void
		1480	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1481	CODE:
		1482	{
		1483	dREQ (REQ_DB_PUT);
		1484	req->db = db;
		1485	req->txn = txn;
		1486	sv_to_dbt (&req->dbt1, key);
		1487	sv_to_dbt (&req->dbt2, data);
		1488	req->uint1 = flags;
		1489	REQ_SEND;
		1490	}
		1491
		1492	void
		1493	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1494	CODE:
		1495	if (SvREADONLY (data))
		1496	croak ("can't modify read-only data scalar in db_get");
		1497	{
		1498	dREQ (REQ_DB_GET);
		1499	req->db = db;
		1500	req->txn = txn;
		1501	req->uint1 = flags;
		1502	sv_to_dbt (&req->dbt1, key);
		1503	req->dbt3.flags = DB_DBT_MALLOC;
		1504	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1505	REQ_SEND;
		1506	}
		1507
		1508	void
		1509	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1510	CODE:
		1511	if (SvREADONLY (data))
		1512	croak ("can't modify read-only data scalar in db_pget");
		1513	{
		1514	dREQ (REQ_DB_PGET);
		1515	req->db = db;
		1516	req->txn = txn;
		1517	req->uint1 = flags;
		1518	sv_to_dbt (&req->dbt1, key);
		1519	sv_to_dbt (&req->dbt2, pkey);
		1520	req->dbt3.flags = DB_DBT_MALLOC;
		1521	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1522	REQ_SEND;
		1523	}
		1524
		1525	void
		1526	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1527	CODE:
		1528	{
		1529	dREQ (REQ_DB_DEL);
		1530	req->db = db;
		1531	req->txn = txn;
		1532	req->uint1 = flags;
		1533	sv_to_dbt (&req->dbt1, key);
		1534	REQ_SEND;
		1535	}
		1536
		1537	void
		1538	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1539	CODE:
		1540	{
		1541	dREQ (REQ_TXN_COMMIT);
		1542	req->txn = txn;
		1543	req->uint1 = flags;
		1544	REQ_SEND;
		1545	ptr_nuke (ST (0));
		1546	}
		1547
		1548	void
		1549	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1550	CODE:
		1551	{
		1552	dREQ (REQ_TXN_ABORT);
		1553	req->txn = txn;
		1554	REQ_SEND;
		1555	ptr_nuke (ST (0));
		1556	}
		1557
		1558	void
		1559	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1560	CODE:
		1561	{
		1562	dREQ (REQ_TXN_FINISH);
		1563	req->txn = txn;
		1564	req->uint1 = flags;
		1565	REQ_SEND;
		1566	ptr_nuke (ST (0));
		1567	}
		1568
		1569	void
		1570	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1571	CODE:
		1572	{
		1573	dREQ (REQ_C_CLOSE);
		1574	req->dbc = dbc;
		1575	REQ_SEND;
		1576	ptr_nuke (ST (0));
		1577	}
		1578
		1579	void
		1580	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1581	CODE:
		1582	{
		1583	dREQ (REQ_C_COUNT);
		1584	req->dbc = dbc;
		1585	req->sv1 = SvREFCNT_inc (count);
		1586	REQ_SEND;
		1587	}
		1588
		1589	void
		1590	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1591	CODE:
		1592	{
		1593	dREQ (REQ_C_PUT);
		1594	req->dbc = dbc;
		1595	sv_to_dbt (&req->dbt1, key);
		1596	sv_to_dbt (&req->dbt2, data);
		1597	req->uint1 = flags;
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
		1602	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1603	CODE:
		1604	{
		1605	dREQ (REQ_C_GET);
		1606	req->dbc = dbc;
		1607	req->uint1 = flags;
		1608	if ((flags & DB_SET) == DB_SET
		1609	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1610	sv_to_dbt (&req->dbt1, key);
		1611	else
		1612	req->dbt1.flags = DB_DBT_MALLOC;
		1613
		1614	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1615
		1616	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1617	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1618	sv_to_dbt (&req->dbt3, data);
		1619	else
		1620	req->dbt3.flags = DB_DBT_MALLOC;
		1621
		1622	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1623	REQ_SEND;
		1624	}
		1625
		1626	void
		1627	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1628	CODE:
		1629	{
		1630	dREQ (REQ_C_PGET);
		1631	req->dbc = dbc;
		1632	req->uint1 = flags;
		1633	if ((flags & DB_SET) == DB_SET
		1634	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1635	sv_to_dbt (&req->dbt1, key);
		1636	else
		1637	req->dbt1.flags = DB_DBT_MALLOC;
		1638
		1639	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1640
		1641	req->dbt2.flags = DB_DBT_MALLOC;
		1642	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1643
		1644	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1645	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1646	sv_to_dbt (&req->dbt3, data);
		1647	else
		1648	req->dbt3.flags = DB_DBT_MALLOC;
		1649
		1650	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1651	REQ_SEND;
		1652	}
		1653
		1654	void
		1655	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1656	CODE:
		1657	{
		1658	dREQ (REQ_C_DEL);
		1659	req->dbc = dbc;
		1660	req->uint1 = flags;
		1661	REQ_SEND;
		1662	}
		1663
		1664
		1665	void
		1666	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	dREQ (REQ_SEQ_OPEN);
		1670	req->seq = seq;
		1671	req->txn = txnid;
		1672	req->uint1 = flags | DB_THREAD;
		1673	sv_to_dbt (&req->dbt1, key);
		1674	REQ_SEND;
		1675	}
		1676
		1677	void
		1678	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1679	CODE:
		1680	{
		1681	dREQ (REQ_SEQ_CLOSE);
		1682	req->seq = seq;
		1683	req->uint1 = flags;
		1684	REQ_SEND;
		1685	ptr_nuke (ST (0));
		1686	}
		1687
		1688	void
		1689	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)
		1690	CODE:
		1691	{
		1692	dREQ (REQ_SEQ_GET);
		1693	req->seq = seq;
		1694	req->txn = txnid;
		1695	req->int1 = delta;
		1696	req->uint1 = flags;
		1697	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1698	REQ_SEND;
		1699	}
		1700
		1701	void
		1702	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1703	CODE:
		1704	{
		1705	dREQ (REQ_SEQ_REMOVE);
		1706	req->seq = seq;
		1707	req->txn = txnid;
		1708	req->uint1 = flags;
942	REQ_SEND;	1709	REQ_SEND;
943	}	1710	}
944		1711
945		1712
946	MODULE = BDB PACKAGE = BDB::Env	1713	MODULE = BDB PACKAGE = BDB::Env
947		1714
		1715	void
		1716	DESTROY (DB_ENV_ornull *env)
		1717	CODE:
		1718	if (env)
		1719	env->close (env, 0);
		1720
		1721	int set_data_dir (DB_ENV *env, const char *dir)
		1722	CODE:
		1723	RETVAL = env->set_data_dir (env, dir);
		1724	OUTPUT:
		1725	RETVAL
		1726
		1727	int set_tmp_dir (DB_ENV *env, const char *dir)
		1728	CODE:
		1729	RETVAL = env->set_tmp_dir (env, dir);
		1730	OUTPUT:
		1731	RETVAL
		1732
		1733	int set_lg_dir (DB_ENV *env, const char *dir)
		1734	CODE:
		1735	RETVAL = env->set_lg_dir (env, dir);
		1736	OUTPUT:
		1737	RETVAL
		1738
		1739	int set_shm_key (DB_ENV *env, long shm_key)
		1740	CODE:
		1741	RETVAL = env->set_shm_key (env, shm_key);
		1742	OUTPUT:
		1743	RETVAL
		1744
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1745	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1746	CODE:
		1747	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1748	OUTPUT:
		1749	RETVAL
949		1750
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1751	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1752	CODE:
		1753	RETVAL = env->set_flags (env, flags, onoff);
		1754	OUTPUT:
		1755	RETVAL
951		1756
		1757	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1758	CODE:
		1759	env->set_errfile (env, errfile);
		1760
		1761	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1762	CODE:
		1763	env->set_msgfile (env, msgfile);
		1764
		1765	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1766	CODE:
		1767	RETVAL = env->set_verbose (env, which, onoff);
		1768	OUTPUT:
		1769	RETVAL
		1770
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1771	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1772	CODE:
		1773	RETVAL = env->set_encrypt (env, password, flags);
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1778	CODE:
		1779	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1780	OUTPUT:
		1781	RETVAL
		1782
		1783	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1784	CODE:
		1785	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1786	OUTPUT:
		1787	RETVAL
		1788
		1789	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1790	CODE:
		1791	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1792	OUTPUT:
		1793	RETVAL
		1794
		1795	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1796	CODE:
		1797	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1798	OUTPUT:
		1799	RETVAL
		1800
		1801	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1802	CODE:
		1803	RETVAL = env->set_lk_detect (env, detect);
		1804	OUTPUT:
		1805	RETVAL
		1806
		1807	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1808	CODE:
		1809	RETVAL = env->set_lk_max_lockers (env, max);
		1810	OUTPUT:
		1811	RETVAL
		1812
		1813	int set_lk_max_locks (DB_ENV *env, U32 max)
		1814	CODE:
		1815	RETVAL = env->set_lk_max_locks (env, max);
		1816	OUTPUT:
		1817	RETVAL
		1818
		1819	int set_lk_max_objects (DB_ENV *env, U32 max)
		1820	CODE:
		1821	RETVAL = env->set_lk_max_objects (env, max);
		1822	OUTPUT:
		1823	RETVAL
		1824
		1825	int set_lg_bsize (DB_ENV *env, U32 max)
		1826	CODE:
		1827	RETVAL = env->set_lg_bsize (env, max);
		1828	OUTPUT:
		1829	RETVAL
		1830
		1831	int set_lg_max (DB_ENV *env, U32 max)
		1832	CODE:
		1833	RETVAL = env->set_lg_max (env, max);
		1834	OUTPUT:
		1835	RETVAL
		1836
		1837	int mutex_set_max (DB_ENV *env, U32 max)
		1838	CODE:
		1839	RETVAL = env->mutex_set_max (env, max);
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int mutex_set_increment (DB_ENV *env, U32 increment)
		1844	CODE:
		1845	RETVAL = env->mutex_set_increment (env, increment);
		1846	OUTPUT:
		1847	RETVAL
		1848
		1849	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1850	CODE:
		1851	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1852	OUTPUT:
		1853	RETVAL
		1854
		1855	int mutex_set_align (DB_ENV *env, U32 align)
		1856	CODE:
		1857	RETVAL = env->mutex_set_align (env, align);
		1858	OUTPUT:
		1859	RETVAL
		1860
		1861	DB_TXN *
		1862	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1863	CODE:
		1864	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1865	if (errno)
		1866	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1867	OUTPUT:
		1868	RETVAL
953		1869
954	MODULE = BDB PACKAGE = BDB::Db	1870	MODULE = BDB PACKAGE = BDB::Db
955		1871
		1872	void
		1873	DESTROY (DB_ornull *db)
		1874	CODE:
		1875	if (db)
		1876	{
		1877	SV *env = (SV *)db->app_private;
		1878	db->close (db, 0);
		1879	SvREFCNT_dec (env);
		1880	}
		1881
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1882	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1883	CODE:
		1884	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1885	OUTPUT:
		1886	RETVAL
957		1887
958	int set_flags (DB *env, U32 flags, int onoff)	1888	int set_flags (DB *db, U32 flags)
		1889	CODE:
		1890	RETVAL = db->set_flags (db, flags);
		1891	OUTPUT:
		1892	RETVAL
959		1893
960	int set_encrypt (DB *db, const char *password, U32 flags)	1894	int set_encrypt (DB *db, const char *password, U32 flags)
		1895	CODE:
		1896	RETVAL = db->set_encrypt (db, password, flags);
		1897	OUTPUT:
		1898	RETVAL
961		1899
962	int set_lorder (DB *db, int lorder)	1900	int set_lorder (DB *db, int lorder)
963		1901	CODE:
		1902	RETVAL = db->set_lorder (db, lorder);
		1903	OUTPUT:
		1904	RETVAL
964		1905
965	int set_bt_minkey (DB *db, U32 minkey)	1906	int set_bt_minkey (DB *db, U32 minkey)
		1907	CODE:
		1908	RETVAL = db->set_bt_minkey (db, minkey);
		1909	OUTPUT:
		1910	RETVAL
966		1911
967	int set_re_delim(DB *db, int delim);	1912	int set_re_delim (DB *db, int delim)
		1913	CODE:
		1914	RETVAL = db->set_re_delim (db, delim);
		1915	OUTPUT:
		1916	RETVAL
968		1917
969	int set_re_pad (DB *db, int re_pad)	1918	int set_re_pad (DB *db, int re_pad)
		1919	CODE:
		1920	RETVAL = db->set_re_pad (db, re_pad);
		1921	OUTPUT:
		1922	RETVAL
970		1923
971	int set_re_source (DB *db, char *source)	1924	int set_re_source (DB *db, char *source)
		1925	CODE:
		1926	RETVAL = db->set_re_source (db, source);
		1927	OUTPUT:
		1928	RETVAL
972		1929
973	int set_re_len (DB *db, U32 re_len)	1930	int set_re_len (DB *db, U32 re_len)
		1931	CODE:
		1932	RETVAL = db->set_re_len (db, re_len);
		1933	OUTPUT:
		1934	RETVAL
974		1935
975	int set_h_ffactor (DB *db, U32 h_ffactor)	1936	int set_h_ffactor (DB *db, U32 h_ffactor)
		1937	CODE:
		1938	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1939	OUTPUT:
		1940	RETVAL
976		1941
977	int set_h_nelem (DB *db, U32 h_nelem)	1942	int set_h_nelem (DB *db, U32 h_nelem)
		1943	CODE:
		1944	RETVAL = db->set_h_nelem (db, h_nelem);
		1945	OUTPUT:
		1946	RETVAL
978		1947
979	int set_q_extentsize (DB *db, U32 extentsize)	1948	int set_q_extentsize (DB *db, U32 extentsize)
		1949	CODE:
		1950	RETVAL = db->set_q_extentsize (db, extentsize);
		1951	OUTPUT:
		1952	RETVAL
980		1953
		1954	DBC *
		1955	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		1956	CODE:
		1957	errno = db->cursor (db, txn, &RETVAL, flags);
		1958	if (errno)
		1959	croak ("DB->cursor: %s", db_strerror (errno));
		1960	OUTPUT:
		1961	RETVAL
981		1962
		1963	DB_SEQUENCE *
		1964	sequence (DB *db, U32 flags = 0)
		1965	CODE:
		1966	{
		1967	errno = db_sequence_create (&RETVAL, db, flags);
		1968	if (errno)
		1969	croak ("db_sequence_create: %s", db_strerror (errno));
		1970	}
		1971	OUTPUT:
		1972	RETVAL
		1973
		1974
		1975	MODULE = BDB PACKAGE = BDB::Txn
		1976
		1977	void
		1978	DESTROY (DB_TXN_ornull *txn)
		1979	CODE:
		1980	if (txn)
		1981	txn->abort (txn);
		1982
		1983	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1984	CODE:
		1985	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		1986	OUTPUT:
		1987	RETVAL
		1988
		1989	int failed (DB_TXN *txn)
		1990	CODE:
		1991	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		1992	OUTPUT:
		1993	RETVAL
		1994
		1995
		1996	MODULE = BDB PACKAGE = BDB::Cursor
		1997
		1998	void
		1999	DESTROY (DBC_ornull *dbc)
		2000	CODE:
		2001	if (dbc)
		2002	dbc->c_close (dbc);
		2003
		2004	#if DB_VERSION_MINOR >= 6
		2005
		2006	int set_priority (DBC *dbc, int priority)
		2007	CODE:
		2008	dbc->set_priority (dbc, priority);
		2009
		2010	#endif
		2011
		2012	MODULE = BDB PACKAGE = BDB::Sequence
		2013
		2014	void
		2015	DESTROY (DB_SEQUENCE_ornull *seq)
		2016	CODE:
		2017	if (seq)
		2018	seq->close (seq, 0);
		2019
		2020	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2021	CODE:
		2022	RETVAL = seq->initial_value (seq, value);
		2023	OUTPUT:
		2024	RETVAL
		2025
		2026	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2027	CODE:
		2028	RETVAL = seq->set_cachesize (seq, size);
		2029	OUTPUT:
		2030	RETVAL
		2031
		2032	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2033	CODE:
		2034	RETVAL = seq->set_flags (seq, flags);
		2035	OUTPUT:
		2036	RETVAL
		2037
		2038	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2039	CODE:
		2040	RETVAL = seq->set_range (seq, min, max);
		2041	OUTPUT:
		2042	RETVAL
		2043

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