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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 1.33 by root, Sun Mar 30 04:57:55 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
36	*/	42	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64	44
39	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
40	# else	46	typedef DB_TXN DB_TXN_ornuked;
41	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
42	# endif	48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
		50
		51	typedef SV SV8; /* byte-sv, used for argument-checking */
		52	typedef char *bdb_filename;
		53
		54	static SV *prepare_cb;
		55
		56	#if DB_VERSION_MINOR >= 6
		57	# define c_close close
		58	# define c_count count
		59	# define c_del del
		60	# define c_dup dup
		61	# define c_get get
		62	# define c_pget pget
		63	# define c_put put
43	#endif	64	#endif
44		65
45	typedef SV SV8; /* byte-sv, used for argument-checking */	66	static void
		67	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		68	{
		69	printf ("err[%s]\n", msg);
		70	}
46		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
47	enum	109	enum {
48	{
49	REQ_QUIT,	110	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	111	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	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,
52	};	118	};
53		119
54	typedef struct aio_cb	120	typedef struct bdb_cb
55	{	121	{
56	struct aio_cb *volatile next;	122	struct bdb_cb *volatile next;
57	SV *callback;	123	SV *callback;
58	int type, pri, errorno;	124	int type, pri, result;
59		125
60	DB_ENV *env;	126	DB_ENV *env;
61	DB *db;	127	DB *db;
62	DB_TXN *txn;	128	DB_TXN *txn;
63	DBC *cursor;	129	DBC *dbc;
		130
		131	UV uv1;
64	int int1, int2;	132	int int1, int2;
65	U32 uint1, uint2;	133	U32 uint1, uint2;
66	char *buf1, *buf2;	134	char *buf1, *buf2;
67	} aio_cb;	135	SV *sv1, *sv2, *sv3;
68		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
69	typedef aio_cb *aio_req;	143	typedef bdb_cb *bdb_req;
70		144
71	enum {	145	enum {
72	PRI_MIN = -4,	146	PRI_MIN = -4,
73	PRI_MAX = 4,	147	PRI_MAX = 4,
74		148
…		…
91		165
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	166	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		167
94	static unsigned int started, idle, wanted;	168	static unsigned int started, idle, wanted;
95		169
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 */	170	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	171	static mutex_t wrklock = X_MUTEX_INIT;
107		172
108	typedef struct worker {	173	typedef struct worker {
109	/* locked by wrklock */	174	/* locked by wrklock */
110	struct worker *prev, *next;	175	struct worker *prev, *next;
111		176
112	pthread_t tid;	177	thread_t tid;
113		178
114	/* locked by reslock, reqlock or wrklock */	179	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	180	bdb_req req; /* currently processed request */
116	void *dbuf;	181	void *dbuf;
117	DIR *dirp;	182	DIR *dirp;
118	} worker;	183	} worker;
119		184
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	185	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	197	}
133		198
134	static volatile unsigned int nreqs, nready, npending;	199	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	200	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	201	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	202	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		203
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	204	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	205	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	206	static cond_t reqwait = X_COND_INIT;
142		207
143	#if WORDACCESS_UNSAFE	208	#if WORDACCESS_UNSAFE
144		209
145	static unsigned int get_nready ()	210	static unsigned int get_nready ()
146	{	211	{
147	unsigned int retval;	212	unsigned int retval;
148		213
149	LOCK (reqlock);	214	X_LOCK (reqlock);
150	retval = nready;	215	retval = nready;
151	UNLOCK (reqlock);	216	X_UNLOCK (reqlock);
152		217
153	return retval;	218	return retval;
154	}	219	}
155		220
156	static unsigned int get_npending ()	221	static unsigned int get_npending ()
157	{	222	{
158	unsigned int retval;	223	unsigned int retval;
159		224
160	LOCK (reslock);	225	X_LOCK (reslock);
161	retval = npending;	226	retval = npending;
162	UNLOCK (reslock);	227	X_UNLOCK (reslock);
163		228
164	return retval;	229	return retval;
165	}	230	}
166		231
167	static unsigned int get_nthreads ()	232	static unsigned int get_nthreads ()
168	{	233	{
169	unsigned int retval;	234	unsigned int retval;
170		235
171	LOCK (wrklock);	236	X_LOCK (wrklock);
172	retval = started;	237	retval = started;
173	UNLOCK (wrklock);	238	X_UNLOCK (wrklock);
174		239
175	return retval;	240	return retval;
176	}	241	}
177		242
178	#else	243	#else
…		…
187	* a somewhat faster data structure might be nice, but	252	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	253	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	254	* per shift, the most expensive operation.
190	*/	255	*/
191	typedef struct {	256	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	257	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	258	int size;
194	} reqq;	259	} reqq;
195		260
196	static reqq req_queue;	261	static reqq req_queue;
197	static reqq res_queue;	262	static reqq res_queue;
198		263
199	int reqq_push (reqq *q, aio_req req)	264	int reqq_push (reqq *q, bdb_req req)
200	{	265	{
201	int pri = req->pri;	266	int pri = req->pri;
202	req->next = 0;	267	req->next = 0;
203		268
204	if (q->qe[pri])	269	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	275	q->qe[pri] = q->qs[pri] = req;
211		276
212	return q->size++;	277	return q->size++;
213	}	278	}
214		279
215	aio_req reqq_shift (reqq *q)	280	bdb_req reqq_shift (reqq *q)
216	{	281	{
217	int pri;	282	int pri;
218		283
219	if (!q->size)	284	if (!q->size)
220	return 0;	285	return 0;
221		286
222	--q->size;	287	--q->size;
223		288
224	for (pri = NUM_PRI; pri--; )	289	for (pri = NUM_PRI; pri--; )
225	{	290	{
226	aio_req req = q->qs[pri];	291	bdb_req req = q->qs[pri];
227		292
228	if (req)	293	if (req)
229	{	294	{
230	if (!(q->qs[pri] = req->next))	295	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	296	q->qe[pri] = 0;
…		…
236		301
237	abort ();	302	abort ();
238	}	303	}
239		304
240	static int poll_cb ();	305	static int poll_cb ();
241	static void req_free (aio_req req);	306	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);	307	static void req_cancel (bdb_req req);
243		308
244	static int req_invoke (aio_req req)	309	static int req_invoke (bdb_req req)
245	{	310	{
246	dSP;	311	dSP;
247		312
248	if (SvOK (req->callback))	313	if (SvOK (req->callback))
249	{	314	{
250	ENTER;	315	ENTER;
251	SAVETMPS;	316	SAVETMPS;
252	PUSHMARK (SP);	317	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		318
255	switch (req->type)	319	switch (req->type)
256	{	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;
257	}	367	}
		368
		369	errno = req->result;
258		370
259	PUTBACK;	371	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	372	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	373	SPAGAIN;
262		374
…		…
265	}	377	}
266		378
267	return !SvTRUE (ERRSV);	379	return !SvTRUE (ERRSV);
268	}	380	}
269		381
270	static void req_free (aio_req req)	382	static void req_free (bdb_req req)
271	{	383	{
272	free (req->buf1);	384	free (req->buf1);
273	free (req->buf2);	385	free (req->buf2);
274	Safefree (req);	386	Safefree (req);
275	}	387	}
276		388
277	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);
278		437
279	static void start_thread (void)	438	static void start_thread (void)
280	{	439	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	440	worker *wrk = calloc (1, sizeof (worker));
285		441
286	if (!wrk)	442	if (!wrk)
287	croak ("unable to allocate worker thread data");	443	croak ("unable to allocate worker thread data");
288		444
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);	445	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	446	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	447	{
302	wrk->prev = &wrk_first;	448	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	449	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	450	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	451	wrk_first.next = wrk;
306	++started;	452	++started;
307	}	453	}
308	else	454	else
309	free (wrk);	455	free (wrk);
310		456
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	457	X_UNLOCK (wrklock);
313	}	458	}
314		459
315	static void maybe_start_thread ()	460	static void maybe_start_thread ()
316	{	461	{
317	if (get_nthreads () >= wanted)	462	if (get_nthreads () >= wanted)
…		…
322	return;	467	return;
323		468
324	start_thread ();	469	start_thread ();
325	}	470	}
326		471
327	static void req_send (aio_req req)	472	static void req_send (bdb_req req)
328	{	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
329	++nreqs;	495	++nreqs;
330		496
331	LOCK (reqlock);	497	X_LOCK (reqlock);
332	++nready;	498	++nready;
333	reqq_push (&req_queue, req);	499	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	500	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	501	X_UNLOCK (reqlock);
336		502
337	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	}
338	}	512	}
339		513
340	static void end_thread (void)	514	static void end_thread (void)
341	{	515	{
342	aio_req req;	516	bdb_req req;
343		517
344	Newz (0, req, 1, aio_cb);	518	Newz (0, req, 1, bdb_cb);
345		519
346	req->type = REQ_QUIT;	520	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	521	req->pri = PRI_MAX + PRI_BIAS;
348		522
349	LOCK (reqlock);	523	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	524	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	525	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	526	X_UNLOCK (reqlock);
353		527
354	LOCK (wrklock);	528	X_LOCK (wrklock);
355	--started;	529	--started;
356	UNLOCK (wrklock);	530	X_UNLOCK (wrklock);
357	}	531	}
358		532
359	static void set_max_idle (int nthreads)	533	static void set_max_idle (int nthreads)
360	{	534	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	535	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	536	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	537	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	538	}
365		539
366	static void min_parallel (int nthreads)	540	static void min_parallel (int nthreads)
367	{	541	{
368	if (wanted < nthreads)	542	if (wanted < nthreads)
…		…
383	fd_set rfd;	557	fd_set rfd;
384		558
385	while (nreqs)	559	while (nreqs)
386	{	560	{
387	int size;	561	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	562	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	563	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	564	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		565
392	if (size)	566	if (size)
393	return;	567	return;
394		568
395	maybe_start_thread ();	569	maybe_start_thread ();
396		570
397	FD_ZERO(&rfd);	571	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	572	FD_SET (respipe [0], &rfd);
399		573
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	574	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	575	}
402	}	576	}
403		577
404	static int poll_cb ()	578	static int poll_cb ()
405	{	579	{
406	dSP;	580	dSP;
407	int count = 0;	581	int count = 0;
408	int maxreqs = max_poll_reqs;	582	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	583	int do_croak = 0;
410	struct timeval tv_start, tv_now;	584	struct timeval tv_start, tv_now;
411	aio_req req;	585	bdb_req req;
412		586
413	if (max_poll_time)	587	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	588	gettimeofday (&tv_start, 0);
415		589
416	for (;;)	590	for (;;)
417	{	591	{
418	for (;;)	592	for (;;)
419	{	593	{
420	maybe_start_thread ();	594	maybe_start_thread ();
421		595
422	LOCK (reslock);	596	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	597	req = reqq_shift (&res_queue);
424		598
425	if (req)	599	if (req)
426	{	600	{
427	--npending;	601	--npending;
428		602
429	if (!res_queue.size)	603	if (!res_queue.size)
430	{	604	{
431	/* read any signals sent by the worker threads */	605	/* read any signals sent by the worker threads */
432	char buf [4];	606	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	607	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	608	;
435	}	609	}
436	}	610	}
437		611
438	UNLOCK (reslock);	612	X_UNLOCK (reslock);
439		613
440	if (!req)	614	if (!req)
441	break;	615	break;
442		616
443	--nreqs;	617	--nreqs;
…		…
473	}	647	}
474		648
475	return count;	649	return count;
476	}	650	}
477		651
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	/*****************************************************************************/	652	/*****************************************************************************/
491		653
492	static void *aio_proc (void *thr_arg)	654	X_THREAD_PROC (bdb_proc)
493	{	655	{
494	aio_req req;	656	bdb_req req;
495	struct timespec ts;	657	struct timespec ts;
496	worker *self = (worker *)thr_arg;	658	worker *self = (worker *)thr_arg;
497		659
498	/* try to distribute timeouts somewhat evenly */	660	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	661	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		662
502	for (;;)	663	for (;;)
503	{	664	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	665	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		666
506	LOCK (reqlock);	667	X_LOCK (reqlock);
507		668
508	for (;;)	669	for (;;)
509	{	670	{
510	self->req = req = reqq_shift (&req_queue);	671	self->req = req = reqq_shift (&req_queue);
511		672
512	if (req)	673	if (req)
513	break;	674	break;
514		675
515	++idle;	676	++idle;
516		677
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	678	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	679	== ETIMEDOUT)
519	{	680	{
520	if (idle > max_idle)	681	if (idle > max_idle)
521	{	682	{
522	--idle;	683	--idle;
523	UNLOCK (reqlock);	684	X_UNLOCK (reqlock);
524	LOCK (wrklock);	685	X_LOCK (wrklock);
525	--started;	686	--started;
526	UNLOCK (wrklock);	687	X_UNLOCK (wrklock);
527	goto quit;	688	goto quit;
528	}	689	}
529		690
530	/* we are allowed to idle, so do so without any timeout */	691	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	692	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	693	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	694	}
534		695
535	--idle;	696	--idle;
536	}	697	}
537		698
538	--nready;	699	--nready;
539		700
540	UNLOCK (reqlock);	701	X_UNLOCK (reqlock);
541		702
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	703	switch (req->type)
545	{	704	{
546	case REQ_QUIT:	705	case REQ_QUIT:
		706	req->result = ENOSYS;
547	goto quit;	707	goto quit;
548		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
549	default:	836	default:
550	//req->result = ENOSYS;	837	req->result = ENOSYS;
551	break;	838	break;
552	}	839	}
553		840
554	//req->errorno = errno;	841	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		842	req->txn->flags |= TXN_DEADLOCK;
555		843
556	LOCK (reslock);	844	X_LOCK (reslock);
557		845
558	++npending;	846	++npending;
559		847
560	if (!reqq_push (&res_queue, req))	848	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	849	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	850	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		851
564	self->req = 0;	852	self->req = 0;
565	worker_clear (self);	853	worker_clear (self);
566		854
567	UNLOCK (reslock);	855	X_UNLOCK (reslock);
568	}	856	}
569		857
570	quit:	858	quit:
571	LOCK (wrklock);	859	X_LOCK (wrklock);
572	worker_free (self);	860	worker_free (self);
573	UNLOCK (wrklock);	861	X_UNLOCK (wrklock);
574		862
575	return 0;	863	return 0;
576	}	864	}
577		865
578	/*****************************************************************************/	866	/*****************************************************************************/
579		867
580	static void atfork_prepare (void)	868	static void atfork_prepare (void)
581	{	869	{
582	LOCK (wrklock);	870	X_LOCK (wrklock);
583	LOCK (reqlock);	871	X_LOCK (reqlock);
584	LOCK (reslock);	872	X_LOCK (reslock);
585	}	873	}
586		874
587	static void atfork_parent (void)	875	static void atfork_parent (void)
588	{	876	{
589	UNLOCK (reslock);	877	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	878	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	879	X_UNLOCK (wrklock);
592	}	880	}
593		881
594	static void atfork_child (void)	882	static void atfork_child (void)
595	{	883	{
596	aio_req prv;	884	bdb_req prv;
597		885
598	while (prv = reqq_shift (&req_queue))	886	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	887	req_free (prv);
600		888
601	while (prv = reqq_shift (&res_queue))	889	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	904	idle = 0;
617	nreqs = 0;	905	nreqs = 0;
618	nready = 0;	906	nready = 0;
619	npending = 0;	907	npending = 0;
620		908
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	909	create_respipe ();
624		910
625	atfork_parent ();	911	atfork_parent ();
626	}	912	}
627		913
628	#define dREQ(reqtype) \	914	#define dREQ(reqtype) \
629	aio_req req; \	915	bdb_req req; \
630	int req_pri = next_pri; \	916	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	917	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	918	\
633	if (SvOK (callback) && !SvROK (callback)) \	919	if (SvOK (callback) && !SvROK (callback)) \
634	croak ("callback must be undef or of reference type"); \	920	croak ("callback must be undef or of reference type"); \
635	\	921	\
636	Newz (0, req, 1, aio_cb); \	922	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	923	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	924	croak ("out of memory during bdb_req allocation"); \
639	\	925	\
640	req->callback = newSVsv (callback); \	926	req->callback = newSVsv (callback); \
641	req->type = (reqtype); \	927	req->type = (reqtype); \
642	req->pri = req_pri	928	req->pri = req_pri
643		929
644	#define REQ_SEND \	930	#define REQ_SEND \
645	req_send (req)	931	req_send (req)
646		932
647	#define SvPTR(var, arg, type, class) \	933	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	934	if (!SvOK (arg)) \
		935	{ \
		936	if (nullok != 1) \
		937	croak (# var " must be a " # class " object, not undef"); \
		938	\
649	(var) = 0; \	939	(var) = 0; \
		940	} \
650	else if (sv_derived_from ((arg), # class)) \	941	else if (sv_derived_from ((arg), # class)) \
651	{ \	942	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	943	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	944	(var) = INT2PTR (type, tmp); \
		945	if (!var && nullok != 2) \
		946	croak (# var " is not a valid " # class " object anymore"); \
654	} \	947	} \
655	else \	948	else \
656	Perl_croak (# var " is not of type " # type)	949	croak (# var " is not of type " # class); \
657		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_setnv (sv, (NV)errno);
		966	sv_setpv (sv, db_strerror (errno));
		967	SvNOK_on (sv); /* what a wonderful hack! */
		968	// ^^^ copied from perl sources
		969	return 0;
		970	}
		971
		972	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		973	}
		974
		975	static MGVTBL vtbl_errno;
		976
		977	// this wonderful hack :( patches perl's $! variable to support our errno values
		978	static void
		979	patch_errno (void)
		980	{
		981	SV *sv;
		982	MAGIC *mg;
		983
		984	if (!(sv = get_sv ("!", 1)))
		985	return;
		986
		987	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		988	return;
		989
		990	if (mg->mg_virtual != &PL_vtbl_sv)
		991	return;
		992
		993	vtbl_errno = PL_vtbl_sv;
		994	vtbl_errno.svt_get = errno_get;
		995	mg->mg_virtual = &vtbl_errno;
		996	}
		997
658	MODULE = BDB PACKAGE = BDB	998	MODULE = BDB PACKAGE = BDB
659		999
660	PROTOTYPES: ENABLE	1000	PROTOTYPES: ENABLE
661		1001
662	BOOT:	1002	BOOT:
…		…
677	const_iv (INIT_TXN)	1017	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1018	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1019	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1020	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1021	const_iv (CREATE)
		1022	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1023	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1024	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1025	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1026	const_iv (PRIVATE)
686	const_iv (REGISTER)	1027	const_iv (REGISTER)
…		…
692	const_iv (DSYNC_DB)	1033	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)	1034	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)	1035	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)	1036	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1037	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1038	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1039	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1040	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1041	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1042	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1043	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1044	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1045	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1046	const_iv (TXN_WRITE_NOSYNC)
		1047	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1048	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1049	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1050	const_iv (XA_CREATE)
710	const_iv (BTREE)	1051	const_iv (BTREE)
711	const_iv (HASH)	1052	const_iv (HASH)
712	const_iv (QUEUE)	1053	const_iv (QUEUE)
713	const_iv (RECNO)	1054	const_iv (RECNO)
714	const_iv (UNKNOWN)	1055	const_iv (UNKNOWN)
715	const_iv (EXCL)	1056	const_iv (EXCL)
		1057	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	1058	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1059	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1060	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1061	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1062	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1063	const_iv (DUP)
723	const_iv (DUPSORT)	1064	const_iv (DUPSORT)
724	const_iv (RECNUM)	1065	const_iv (RECNUM)
725	const_iv (RENUMBER)	1066	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1067	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	1068	const_iv (INORDER)
728	const_iv (CONSUME)	1069	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1070	const_iv (CONSUME_WAIT)
		1071	const_iv (GET_BOTH)
		1072	const_iv (GET_BOTH_RANGE)
		1073	//const_iv (SET_RECNO)
		1074	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1075	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1076	const_iv (JOIN_ITEM)
		1077	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1078	const_iv (RMW)
733		1079
734	const_iv (NOTFOUND)	1080	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1081	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1082	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1083	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1084	const_iv (RUNRECOVERY)
		1085	const_iv (OLD_VERSION)
		1086	const_iv (REP_HANDLE_DEAD)
		1087	const_iv (REP_LOCKOUT)
		1088	const_iv (SECONDARY_BAD)
		1089
		1090	const_iv (FREE_SPACE)
		1091	const_iv (FREELIST_ONLY)
		1092
		1093	const_iv (APPEND)
		1094	const_iv (NODUPDATA)
		1095	const_iv (NOOVERWRITE)
		1096
		1097	const_iv (TXN_NOWAIT)
		1098	const_iv (TXN_SYNC)
		1099
		1100	const_iv (SET_LOCK_TIMEOUT)
		1101	const_iv (SET_TXN_TIMEOUT)
		1102
		1103	const_iv (FIRST)
		1104	const_iv (NEXT)
		1105	const_iv (NEXT_DUP)
		1106	const_iv (NEXT_NODUP)
		1107	const_iv (PREV)
		1108	const_iv (PREV_NODUP)
		1109	const_iv (SET)
		1110	const_iv (SET_RANGE)
		1111	const_iv (LAST)
		1112	const_iv (BEFORE)
		1113	const_iv (AFTER)
		1114	const_iv (CURRENT)
		1115	const_iv (KEYFIRST)
		1116	const_iv (KEYLAST)
		1117	const_iv (NODUPDATA)
		1118
		1119	const_iv (FORCE)
		1120
		1121	const_iv (LOCK_DEFAULT)
		1122	const_iv (LOCK_EXPIRE)
		1123	const_iv (LOCK_MAXLOCKS)
		1124	const_iv (LOCK_MAXWRITE)
		1125	const_iv (LOCK_MINLOCKS)
		1126	const_iv (LOCK_MINWRITE)
		1127	const_iv (LOCK_OLDEST)
		1128	const_iv (LOCK_RANDOM)
		1129	const_iv (LOCK_YOUNGEST)
		1130
		1131	const_iv (SEQ_DEC)
		1132	const_iv (SEQ_INC)
		1133	const_iv (SEQ_WRAP)
		1134
		1135	const_iv (BUFFER_SMALL)
		1136	const_iv (DONOTINDEX)
		1137	const_iv (KEYEMPTY )
		1138	const_iv (KEYEXIST )
		1139	const_iv (LOCK_DEADLOCK)
		1140	const_iv (LOCK_NOTGRANTED)
		1141	const_iv (LOG_BUFFER_FULL)
		1142	const_iv (NOSERVER)
		1143	const_iv (NOSERVER_HOME)
		1144	const_iv (NOSERVER_ID)
		1145	const_iv (NOTFOUND)
		1146	const_iv (PAGE_NOTFOUND)
		1147	const_iv (REP_DUPMASTER)
		1148	const_iv (REP_HANDLE_DEAD)
		1149	const_iv (REP_HOLDELECTION)
		1150	const_iv (REP_IGNORE)
		1151	const_iv (REP_ISPERM)
		1152	const_iv (REP_JOIN_FAILURE)
		1153	const_iv (REP_LOCKOUT)
		1154	const_iv (REP_NEWMASTER)
		1155	const_iv (REP_NEWSITE)
		1156	const_iv (REP_NOTPERM)
		1157	const_iv (REP_UNAVAIL)
		1158	const_iv (RUNRECOVERY)
		1159	const_iv (SECONDARY_BAD)
		1160	const_iv (VERIFY_BAD)
		1161	const_iv (VERSION_MISMATCH)
		1162
		1163	const_iv (VERB_DEADLOCK)
		1164	const_iv (VERB_RECOVERY)
		1165	const_iv (VERB_REGISTER)
		1166	const_iv (VERB_REPLICATION)
		1167	const_iv (VERB_WAITSFOR)
		1168
		1169	const_iv (VERSION_MAJOR)
		1170	const_iv (VERSION_MINOR)
		1171	const_iv (VERSION_PATCH)
		1172	#if DB_VERSION_MINOR >= 5
		1173	const_iv (MULTIVERSION)
		1174	const_iv (TXN_SNAPSHOT)
		1175	#endif
		1176	#if DB_VERSION_MINOR >= 6
		1177	const_iv (PREV_DUP)
		1178	const_iv (PRIORITY_UNCHANGED)
		1179	const_iv (PRIORITY_VERY_LOW)
		1180	const_iv (PRIORITY_LOW)
		1181	const_iv (PRIORITY_DEFAULT)
		1182	const_iv (PRIORITY_HIGH)
		1183	const_iv (PRIORITY_VERY_HIGH)
		1184	#endif
739	};	1185	};
740		1186
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1187	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1188	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1189
744	create_pipe ();	1190	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1191	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1192
		1193	create_respipe ();
		1194
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1195	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1196	#ifdef _WIN32
		1197	X_MUTEX_CHECK (wrklock);
		1198	X_MUTEX_CHECK (reslock);
		1199	X_MUTEX_CHECK (reqlock);
		1200
		1201	X_COND_CHECK (reqwait);
		1202	#endif
		1203	patch_errno ();
746	}	1204	}
747		1205
748	void	1206	void
749	max_poll_reqs (int nreqs)	1207	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1208	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1237	max_outstanding = maxreqs;
780	OUTPUT:	1238	OUTPUT:
781	RETVAL	1239	RETVAL
782		1240
783	int	1241	int
784	bdbreq_pri (int pri = 0)	1242	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1243	PROTOTYPE: ;$
786	CODE:	1244	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1245	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1246	if (items > 0)
789	{	1247	{
…		…
793	}	1251	}
794	OUTPUT:	1252	OUTPUT:
795	RETVAL	1253	RETVAL
796		1254
797	void	1255	void
798	bdbreq_nice (int nice = 0)	1256	dbreq_nice (int nice = 0)
799	CODE:	1257	CODE:
800	nice = next_pri - nice;	1258	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1259	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1260	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1261	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1269	poll_wait ();
812	poll_cb ();	1270	poll_cb ();
813	}	1271	}
814		1272
815	int	1273	int
816	poll()	1274	poll ()
817	PROTOTYPE:	1275	PROTOTYPE:
818	CODE:	1276	CODE:
819	poll_wait ();	1277	poll_wait ();
820	RETVAL = poll_cb ();	1278	RETVAL = poll_cb ();
821	OUTPUT:	1279	OUTPUT:
822	RETVAL	1280	RETVAL
823		1281
824	int	1282	int
825	poll_fileno()	1283	poll_fileno ()
826	PROTOTYPE:	1284	PROTOTYPE:
827	CODE:	1285	CODE:
828	RETVAL = respipe [0];	1286	RETVAL = respipe [0];
829	OUTPUT:	1287	OUTPUT:
830	RETVAL	1288	RETVAL
831		1289
832	int	1290	int
833	poll_cb(...)	1291	poll_cb (...)
834	PROTOTYPE:	1292	PROTOTYPE:
835	CODE:	1293	CODE:
836	RETVAL = poll_cb ();	1294	RETVAL = poll_cb ();
837	OUTPUT:	1295	OUTPUT:
838	RETVAL	1296	RETVAL
839		1297
840	void	1298	void
841	poll_wait()	1299	poll_wait ()
842	PROTOTYPE:	1300	PROTOTYPE:
843	CODE:	1301	CODE:
844	poll_wait ();	1302	poll_wait ();
845		1303
846	int	1304	int
847	nreqs()	1305	nreqs ()
848	PROTOTYPE:	1306	PROTOTYPE:
849	CODE:	1307	CODE:
850	RETVAL = nreqs;	1308	RETVAL = nreqs;
851	OUTPUT:	1309	OUTPUT:
852	RETVAL	1310	RETVAL
853		1311
854	int	1312	int
855	nready()	1313	nready ()
856	PROTOTYPE:	1314	PROTOTYPE:
857	CODE:	1315	CODE:
858	RETVAL = get_nready ();	1316	RETVAL = get_nready ();
859	OUTPUT:	1317	OUTPUT:
860	RETVAL	1318	RETVAL
861		1319
862	int	1320	int
863	npending()	1321	npending ()
864	PROTOTYPE:	1322	PROTOTYPE:
865	CODE:	1323	CODE:
866	RETVAL = get_npending ();	1324	RETVAL = get_npending ();
867	OUTPUT:	1325	OUTPUT:
868	RETVAL	1326	RETVAL
869		1327
870	int	1328	int
871	nthreads()	1329	nthreads ()
872	PROTOTYPE:	1330	PROTOTYPE:
873	CODE:	1331	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1332	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1333	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1334	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1335	OUTPUT:
878	RETVAL	1336	RETVAL
879		1337
		1338	void
		1339	set_sync_prepare (SV *cb)
		1340	PROTOTYPE: &
		1341	CODE:
		1342	SvREFCNT_dec (prepare_cb);
		1343	prepare_cb = newSVsv (cb);
		1344
		1345	char *
		1346	strerror (int errorno = errno)
		1347	PROTOTYPE: ;$
		1348	CODE:
		1349	RETVAL = db_strerror (errorno);
		1350	OUTPUT:
		1351	RETVAL
		1352
880	DB_ENV *	1353	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1354	db_env_create (U32 env_flags = 0)
882	CODE:	1355	CODE:
883	{	1356	{
884	int err = db_env_create (&RETVAL, env_flags);	1357	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1358	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1359	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1360
		1361	if (0)
		1362	{
		1363	RETVAL->set_errcall (RETVAL, debug_errcall);
		1364	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1365	}
		1366	}
		1367	OUTPUT:
		1368	RETVAL
		1369
889	void	1370	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1371	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1372	CODE:
892	{	1373	{
893	dREQ (REQ_ENV_OPEN);	1374	dREQ (REQ_ENV_OPEN);
		1375
894	req->env = env;	1376	req->env = env;
895	req->uint1 = open_flags;	1377	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1378	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1379	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1380	REQ_SEND;
899	}	1381	}
900		1382
901	void	1383	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1384	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1385	CODE:
904	{	1386	{
905	dREQ (REQ_ENV_CLOSE);	1387	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1388	req->env = env;
907	req->uint1 = flags;	1389	req->uint1 = flags;
908	REQ_SEND;	1390	REQ_SEND;
		1391	ptr_nuke (ST (0));
909	}	1392	}
		1393
		1394	void
		1395	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1396	CODE:
		1397	{
		1398	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1399	req->env = env;
		1400	req->uint1 = kbyte;
		1401	req->int1 = min;
		1402	req->uint2 = flags;
		1403	REQ_SEND;
		1404	}
		1405
		1406	void
		1407	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1408	CODE:
		1409	{
		1410	dREQ (REQ_ENV_LOCK_DETECT);
		1411	req->env = env;
		1412	req->uint1 = flags;
		1413	req->uint2 = atype;
		1414	REQ_SEND;
		1415	}
		1416
		1417	void
		1418	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1419	CODE:
		1420	{
		1421	dREQ (REQ_ENV_MEMP_SYNC);
		1422	req->env = env;
		1423	REQ_SEND;
		1424	}
		1425
		1426	void
		1427	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1428	CODE:
		1429	{
		1430	dREQ (REQ_ENV_MEMP_TRICKLE);
		1431	req->env = env;
		1432	req->int1 = percent;
		1433	REQ_SEND;
		1434	}
		1435
910		1436
911	DB *	1437	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1438	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1439	CODE:
914	{	1440	{
915	int err = db_create (&RETVAL, env, flags);	1441	errno = db_create (&RETVAL, env, flags);
916	if (err)	1442	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1443	croak ("db_create: %s", db_strerror (errno));
918	}
919		1444
		1445	if (RETVAL)
		1446	RETVAL->app_private = (void *)newSVsv (ST (0));
		1447	}
		1448	OUTPUT:
		1449	RETVAL
		1450
920	void	1451	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)	1452	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
922	CODE:	1453	CODE:
923	{	1454	{
924	dREQ (REQ_DB_OPEN);	1455	dREQ (REQ_DB_OPEN);
925	req->db = db;	1456	req->db = db;
926	req->txn = txnid;	1457	req->txn = txnid;
927	req->buf1 = strdup (file);	1458	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1459	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1460	req->int1 = type;
930	req->uint1 = flags;	1461	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1462	req->int2 = mode;
932	REQ_SEND;	1463	REQ_SEND;
933	}	1464	}
934		1465
935	void	1466	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1467	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1468	CODE:
938	{	1469	{
939	dREQ (REQ_DB_CLOSE);	1470	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1471	req->db = db;
941	req->uint1 = flags;	1472	req->uint1 = flags;
		1473	req->sv1 = (SV *)db->app_private;
		1474	REQ_SEND;
		1475	ptr_nuke (ST (0));
		1476	}
		1477
		1478	void
		1479	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)
		1480	CODE:
		1481	{
		1482	dREQ (REQ_DB_COMPACT);
		1483	req->db = db;
		1484	req->txn = txn;
		1485	sv_to_dbt (&req->dbt1, start);
		1486	sv_to_dbt (&req->dbt2, stop);
		1487	req->uint1 = flags;
		1488	REQ_SEND;
		1489	}
		1490
		1491	void
		1492	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1493	CODE:
		1494	{
		1495	dREQ (REQ_DB_SYNC);
		1496	req->db = db;
		1497	req->uint1 = flags;
		1498	REQ_SEND;
		1499	}
		1500
		1501	void
		1502	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1503	CODE:
		1504	{
		1505	dREQ (REQ_DB_SYNC);
		1506	req->db = db;
		1507	req->buf1 = strdup (file);
		1508	req->uint1 = flags;
		1509	REQ_SEND;
		1510	}
		1511
		1512	void
		1513	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1514	CODE:
		1515	{
		1516	dREQ (REQ_DB_KEY_RANGE);
		1517	req->db = db;
		1518	req->txn = txn;
		1519	sv_to_dbt (&req->dbt1, key);
		1520	req->uint1 = flags;
		1521	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1522	REQ_SEND;
		1523	}
		1524
		1525	void
		1526	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1527	CODE:
		1528	{
		1529	dREQ (REQ_DB_PUT);
		1530	req->db = db;
		1531	req->txn = txn;
		1532	sv_to_dbt (&req->dbt1, key);
		1533	sv_to_dbt (&req->dbt2, data);
		1534	req->uint1 = flags;
		1535	REQ_SEND;
		1536	}
		1537
		1538	void
		1539	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1540	CODE:
		1541	if (SvREADONLY (data))
		1542	croak ("can't modify read-only data scalar in db_get");
		1543	{
		1544	dREQ (REQ_DB_GET);
		1545	req->db = db;
		1546	req->txn = txn;
		1547	req->uint1 = flags;
		1548	sv_to_dbt (&req->dbt1, key);
		1549	req->dbt3.flags = DB_DBT_MALLOC;
		1550	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1551	REQ_SEND;
		1552	}
		1553
		1554	void
		1555	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1556	CODE:
		1557	if (SvREADONLY (data))
		1558	croak ("can't modify read-only data scalar in db_pget");
		1559	{
		1560	dREQ (REQ_DB_PGET);
		1561	req->db = db;
		1562	req->txn = txn;
		1563	req->uint1 = flags;
		1564	sv_to_dbt (&req->dbt1, key);
		1565	sv_to_dbt (&req->dbt2, pkey);
		1566	req->dbt3.flags = DB_DBT_MALLOC;
		1567	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
		1572	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1573	CODE:
		1574	{
		1575	dREQ (REQ_DB_DEL);
		1576	req->db = db;
		1577	req->txn = txn;
		1578	req->uint1 = flags;
		1579	sv_to_dbt (&req->dbt1, key);
		1580	REQ_SEND;
		1581	}
		1582
		1583	void
		1584	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1585	CODE:
		1586	{
		1587	dREQ (REQ_TXN_COMMIT);
		1588	req->txn = txn;
		1589	req->uint1 = flags;
		1590	REQ_SEND;
		1591	ptr_nuke (ST (0));
		1592	}
		1593
		1594	void
		1595	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1596	CODE:
		1597	{
		1598	dREQ (REQ_TXN_ABORT);
		1599	req->txn = txn;
		1600	REQ_SEND;
		1601	ptr_nuke (ST (0));
		1602	}
		1603
		1604	void
		1605	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1606	CODE:
		1607	{
		1608	dREQ (REQ_TXN_FINISH);
		1609	req->txn = txn;
		1610	req->uint1 = flags;
		1611	REQ_SEND;
		1612	ptr_nuke (ST (0));
		1613	}
		1614
		1615	void
		1616	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1617	CODE:
		1618	{
		1619	dREQ (REQ_C_CLOSE);
		1620	req->dbc = dbc;
		1621	REQ_SEND;
		1622	ptr_nuke (ST (0));
		1623	}
		1624
		1625	void
		1626	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1627	CODE:
		1628	{
		1629	dREQ (REQ_C_COUNT);
		1630	req->dbc = dbc;
		1631	req->sv1 = SvREFCNT_inc (count);
		1632	REQ_SEND;
		1633	}
		1634
		1635	void
		1636	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1637	CODE:
		1638	{
		1639	dREQ (REQ_C_PUT);
		1640	req->dbc = dbc;
		1641	sv_to_dbt (&req->dbt1, key);
		1642	sv_to_dbt (&req->dbt2, data);
		1643	req->uint1 = flags;
		1644	REQ_SEND;
		1645	}
		1646
		1647	void
		1648	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1649	CODE:
		1650	{
		1651	dREQ (REQ_C_GET);
		1652	req->dbc = dbc;
		1653	req->uint1 = flags;
		1654	if ((flags & DB_SET) == DB_SET
		1655	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1656	sv_to_dbt (&req->dbt1, key);
		1657	else
		1658	req->dbt1.flags = DB_DBT_MALLOC;
		1659
		1660	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1661
		1662	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1663	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1664	sv_to_dbt (&req->dbt3, data);
		1665	else
		1666	req->dbt3.flags = DB_DBT_MALLOC;
		1667
		1668	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1669	REQ_SEND;
		1670	}
		1671
		1672	void
		1673	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1674	CODE:
		1675	{
		1676	dREQ (REQ_C_PGET);
		1677	req->dbc = dbc;
		1678	req->uint1 = flags;
		1679	if ((flags & DB_SET) == DB_SET
		1680	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1681	sv_to_dbt (&req->dbt1, key);
		1682	else
		1683	req->dbt1.flags = DB_DBT_MALLOC;
		1684
		1685	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1686
		1687	req->dbt2.flags = DB_DBT_MALLOC;
		1688	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1689
		1690	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1691	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1692	sv_to_dbt (&req->dbt3, data);
		1693	else
		1694	req->dbt3.flags = DB_DBT_MALLOC;
		1695
		1696	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1697	REQ_SEND;
		1698	}
		1699
		1700	void
		1701	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1702	CODE:
		1703	{
		1704	dREQ (REQ_C_DEL);
		1705	req->dbc = dbc;
		1706	req->uint1 = flags;
		1707	REQ_SEND;
		1708	}
		1709
		1710
		1711	void
		1712	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1713	CODE:
		1714	{
		1715	dREQ (REQ_SEQ_OPEN);
		1716	req->seq = seq;
		1717	req->txn = txnid;
		1718	req->uint1 = flags | DB_THREAD;
		1719	sv_to_dbt (&req->dbt1, key);
		1720	REQ_SEND;
		1721	}
		1722
		1723	void
		1724	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1725	CODE:
		1726	{
		1727	dREQ (REQ_SEQ_CLOSE);
		1728	req->seq = seq;
		1729	req->uint1 = flags;
		1730	REQ_SEND;
		1731	ptr_nuke (ST (0));
		1732	}
		1733
		1734	void
		1735	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)
		1736	CODE:
		1737	{
		1738	dREQ (REQ_SEQ_GET);
		1739	req->seq = seq;
		1740	req->txn = txnid;
		1741	req->int1 = delta;
		1742	req->uint1 = flags;
		1743	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1744	REQ_SEND;
		1745	}
		1746
		1747	void
		1748	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1749	CODE:
		1750	{
		1751	dREQ (REQ_SEQ_REMOVE);
		1752	req->seq = seq;
		1753	req->txn = txnid;
		1754	req->uint1 = flags;
942	REQ_SEND;	1755	REQ_SEND;
943	}	1756	}
944		1757
945		1758
946	MODULE = BDB PACKAGE = BDB::Env	1759	MODULE = BDB PACKAGE = BDB::Env
947		1760
		1761	void
		1762	DESTROY (DB_ENV_ornuked *env)
		1763	CODE:
		1764	if (env)
		1765	env->close (env, 0);
		1766
		1767	int set_data_dir (DB_ENV *env, const char *dir)
		1768	CODE:
		1769	RETVAL = env->set_data_dir (env, dir);
		1770	OUTPUT:
		1771	RETVAL
		1772
		1773	int set_tmp_dir (DB_ENV *env, const char *dir)
		1774	CODE:
		1775	RETVAL = env->set_tmp_dir (env, dir);
		1776	OUTPUT:
		1777	RETVAL
		1778
		1779	int set_lg_dir (DB_ENV *env, const char *dir)
		1780	CODE:
		1781	RETVAL = env->set_lg_dir (env, dir);
		1782	OUTPUT:
		1783	RETVAL
		1784
		1785	int set_shm_key (DB_ENV *env, long shm_key)
		1786	CODE:
		1787	RETVAL = env->set_shm_key (env, shm_key);
		1788	OUTPUT:
		1789	RETVAL
		1790
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1791	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1792	CODE:
		1793	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1794	OUTPUT:
		1795	RETVAL
949		1796
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1797	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1798	CODE:
		1799	RETVAL = env->set_flags (env, flags, onoff);
		1800	OUTPUT:
		1801	RETVAL
951		1802
		1803	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1804	CODE:
		1805	env->set_errfile (env, errfile);
		1806
		1807	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1808	CODE:
		1809	env->set_msgfile (env, msgfile);
		1810
		1811	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1812	CODE:
		1813	RETVAL = env->set_verbose (env, which, onoff);
		1814	OUTPUT:
		1815	RETVAL
		1816
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1817	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1818	CODE:
		1819	RETVAL = env->set_encrypt (env, password, flags);
		1820	OUTPUT:
		1821	RETVAL
		1822
		1823	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1824	CODE:
		1825	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1826	OUTPUT:
		1827	RETVAL
		1828
		1829	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1830	CODE:
		1831	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1832	OUTPUT:
		1833	RETVAL
		1834
		1835	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1836	CODE:
		1837	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1838	OUTPUT:
		1839	RETVAL
		1840
		1841	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1842	CODE:
		1843	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1844	OUTPUT:
		1845	RETVAL
		1846
		1847	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1848	CODE:
		1849	RETVAL = env->set_lk_detect (env, detect);
		1850	OUTPUT:
		1851	RETVAL
		1852
		1853	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1854	CODE:
		1855	RETVAL = env->set_lk_max_lockers (env, max);
		1856	OUTPUT:
		1857	RETVAL
		1858
		1859	int set_lk_max_locks (DB_ENV *env, U32 max)
		1860	CODE:
		1861	RETVAL = env->set_lk_max_locks (env, max);
		1862	OUTPUT:
		1863	RETVAL
		1864
		1865	int set_lk_max_objects (DB_ENV *env, U32 max)
		1866	CODE:
		1867	RETVAL = env->set_lk_max_objects (env, max);
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int set_lg_bsize (DB_ENV *env, U32 max)
		1872	CODE:
		1873	RETVAL = env->set_lg_bsize (env, max);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	int set_lg_max (DB_ENV *env, U32 max)
		1878	CODE:
		1879	RETVAL = env->set_lg_max (env, max);
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int mutex_set_max (DB_ENV *env, U32 max)
		1884	CODE:
		1885	RETVAL = env->mutex_set_max (env, max);
		1886	OUTPUT:
		1887	RETVAL
		1888
		1889	int mutex_set_increment (DB_ENV *env, U32 increment)
		1890	CODE:
		1891	RETVAL = env->mutex_set_increment (env, increment);
		1892	OUTPUT:
		1893	RETVAL
		1894
		1895	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1896	CODE:
		1897	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1898	OUTPUT:
		1899	RETVAL
		1900
		1901	int mutex_set_align (DB_ENV *env, U32 align)
		1902	CODE:
		1903	RETVAL = env->mutex_set_align (env, align);
		1904	OUTPUT:
		1905	RETVAL
		1906
		1907	DB_TXN *
		1908	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1909	CODE:
		1910	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1911	if (errno)
		1912	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1913	OUTPUT:
		1914	RETVAL
953		1915
954	MODULE = BDB PACKAGE = BDB::Db	1916	MODULE = BDB PACKAGE = BDB::Db
955		1917
		1918	void
		1919	DESTROY (DB_ornuked *db)
		1920	CODE:
		1921	if (db)
		1922	{
		1923	SV *env = (SV *)db->app_private;
		1924	db->close (db, 0);
		1925	SvREFCNT_dec (env);
		1926	}
		1927
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1928	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1929	CODE:
		1930	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1931	OUTPUT:
		1932	RETVAL
957		1933
958	int set_flags (DB *env, U32 flags, int onoff)	1934	int set_flags (DB *db, U32 flags)
		1935	CODE:
		1936	RETVAL = db->set_flags (db, flags);
		1937	OUTPUT:
		1938	RETVAL
959		1939
960	int set_encrypt (DB *db, const char *password, U32 flags)	1940	int set_encrypt (DB *db, const char *password, U32 flags)
		1941	CODE:
		1942	RETVAL = db->set_encrypt (db, password, flags);
		1943	OUTPUT:
		1944	RETVAL
961		1945
962	int set_lorder (DB *db, int lorder)	1946	int set_lorder (DB *db, int lorder)
963		1947	CODE:
		1948	RETVAL = db->set_lorder (db, lorder);
		1949	OUTPUT:
		1950	RETVAL
964		1951
965	int set_bt_minkey (DB *db, U32 minkey)	1952	int set_bt_minkey (DB *db, U32 minkey)
		1953	CODE:
		1954	RETVAL = db->set_bt_minkey (db, minkey);
		1955	OUTPUT:
		1956	RETVAL
966		1957
967	int set_re_delim(DB *db, int delim);	1958	int set_re_delim (DB *db, int delim)
		1959	CODE:
		1960	RETVAL = db->set_re_delim (db, delim);
		1961	OUTPUT:
		1962	RETVAL
968		1963
969	int set_re_pad (DB *db, int re_pad)	1964	int set_re_pad (DB *db, int re_pad)
		1965	CODE:
		1966	RETVAL = db->set_re_pad (db, re_pad);
		1967	OUTPUT:
		1968	RETVAL
970		1969
971	int set_re_source (DB *db, char *source)	1970	int set_re_source (DB *db, char *source)
		1971	CODE:
		1972	RETVAL = db->set_re_source (db, source);
		1973	OUTPUT:
		1974	RETVAL
972		1975
973	int set_re_len (DB *db, U32 re_len)	1976	int set_re_len (DB *db, U32 re_len)
		1977	CODE:
		1978	RETVAL = db->set_re_len (db, re_len);
		1979	OUTPUT:
		1980	RETVAL
974		1981
975	int set_h_ffactor (DB *db, U32 h_ffactor)	1982	int set_h_ffactor (DB *db, U32 h_ffactor)
		1983	CODE:
		1984	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1985	OUTPUT:
		1986	RETVAL
976		1987
977	int set_h_nelem (DB *db, U32 h_nelem)	1988	int set_h_nelem (DB *db, U32 h_nelem)
		1989	CODE:
		1990	RETVAL = db->set_h_nelem (db, h_nelem);
		1991	OUTPUT:
		1992	RETVAL
978		1993
979	int set_q_extentsize (DB *db, U32 extentsize)	1994	int set_q_extentsize (DB *db, U32 extentsize)
		1995	CODE:
		1996	RETVAL = db->set_q_extentsize (db, extentsize);
		1997	OUTPUT:
		1998	RETVAL
980		1999
		2000	DBC *
		2001	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2002	CODE:
		2003	errno = db->cursor (db, txn, &RETVAL, flags);
		2004	if (errno)
		2005	croak ("DB->cursor: %s", db_strerror (errno));
		2006	OUTPUT:
		2007	RETVAL
981		2008
		2009	DB_SEQUENCE *
		2010	sequence (DB *db, U32 flags = 0)
		2011	CODE:
		2012	{
		2013	errno = db_sequence_create (&RETVAL, db, flags);
		2014	if (errno)
		2015	croak ("db_sequence_create: %s", db_strerror (errno));
		2016	}
		2017	OUTPUT:
		2018	RETVAL
		2019
		2020
		2021	MODULE = BDB PACKAGE = BDB::Txn
		2022
		2023	void
		2024	DESTROY (DB_TXN_ornuked *txn)
		2025	CODE:
		2026	if (txn)
		2027	txn->abort (txn);
		2028
		2029	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2030	CODE:
		2031	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2032	OUTPUT:
		2033	RETVAL
		2034
		2035	int failed (DB_TXN *txn)
		2036	CODE:
		2037	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2038	OUTPUT:
		2039	RETVAL
		2040
		2041
		2042	MODULE = BDB PACKAGE = BDB::Cursor
		2043
		2044	void
		2045	DESTROY (DBC_ornuked *dbc)
		2046	CODE:
		2047	if (dbc)
		2048	dbc->c_close (dbc);
		2049
		2050	#if DB_VERSION_MINOR >= 6
		2051
		2052	int set_priority (DBC *dbc, int priority)
		2053	CODE:
		2054	dbc->set_priority (dbc, priority);
		2055
		2056	#endif
		2057
		2058	MODULE = BDB PACKAGE = BDB::Sequence
		2059
		2060	void
		2061	DESTROY (DB_SEQUENCE_ornuked *seq)
		2062	CODE:
		2063	if (seq)
		2064	seq->close (seq, 0);
		2065
		2066	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2067	CODE:
		2068	RETVAL = seq->initial_value (seq, value);
		2069	OUTPUT:
		2070	RETVAL
		2071
		2072	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2073	CODE:
		2074	RETVAL = seq->set_cachesize (seq, size);
		2075	OUTPUT:
		2076	RETVAL
		2077
		2078	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2079	CODE:
		2080	RETVAL = seq->set_flags (seq, flags);
		2081	OUTPUT:
		2082	RETVAL
		2083
		2084	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2085	CODE:
		2086	RETVAL = seq->set_range (seq, min, max);
		2087	OUTPUT:
		2088	RETVAL
		2089
		2090

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