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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 1.36 by root, Sun Mar 30 08:01:58 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
36	*/	42	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64	44
39	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
40	# else	46	typedef DB_TXN DB_TXN_ornuked;
41	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
42	# endif	48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
		50
		51	typedef SV SV8; /* byte-sv, used for argument-checking */
		52	typedef char *bdb_filename;
		53
		54	static SV *prepare_cb;
		55
		56	#if DB_VERSION_MINOR >= 6
		57	# define c_close close
		58	# define c_count count
		59	# define c_del del
		60	# define c_dup dup
		61	# define c_get get
		62	# define c_pget pget
		63	# define c_put put
43	#endif	64	#endif
44		65
45	typedef SV SV8; /* byte-sv, used for argument-checking */	66	static char *
		67	get_bdb_filename (SV *sv)
		68	{
		69	if (!SvOK (sv))
		70	return 0;
46		71
		72	#if _WIN32
		73	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		74	{
		75	STRLEN len;
		76	char *src = SvPVbyte (sv, len);
		77	SV *t1 = sv_newmortal ();
		78	SV *t2 = sv_newmortal ();
		79
		80	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		81	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		82
		83	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		84	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		85	SvPOK_only (t2);
		86	SvPVX (t2)[len] = 0;
		87	SvCUR_set (t2, len);
		88
		89	return SvPVX (t2);
		90	}
		91	#else
		92	return SvPVbyte_nolen (sv);
		93	#endif
		94	}
		95
		96	static void
		97	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		98	{
		99	printf ("err[%s]\n", msg);
		100	}
		101
		102	static void
		103	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		104	{
		105	printf ("msg[%s]\n", msg);
		106	}
		107
		108	static char *
		109	strdup_ornull (const char *s)
		110	{
		111	return s ? strdup (s) : 0;
		112	}
		113
		114	static void
		115	sv_to_dbt (DBT *dbt, SV *sv)
		116	{
		117	STRLEN len;
		118	char *data = SvPVbyte (sv, len);
		119
		120	dbt->data = malloc (len);
		121	memcpy (dbt->data, data, len);
		122	dbt->size = len;
		123	dbt->flags = DB_DBT_REALLOC;
		124	}
		125
		126	static void
		127	dbt_to_sv (SV *sv, DBT *dbt)
		128	{
		129	if (sv)
		130	{
		131	SvREADONLY_off (sv);
		132	sv_setpvn_mg (sv, dbt->data, dbt->size);
		133	SvREFCNT_dec (sv);
		134	}
		135
		136	free (dbt->data);
		137	}
		138
47	enum	139	enum {
48	{
49	REQ_QUIT,	140	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	141	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	142	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		143	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		144	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		145	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		146	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		147	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	148	};
53		149
54	typedef struct aio_cb	150	typedef struct bdb_cb
55	{	151	{
56	struct aio_cb *volatile next;	152	struct bdb_cb *volatile next;
57	SV *callback;	153	SV *callback;
58	int type, pri, errorno;	154	int type, pri, result;
59		155
60	DB_ENV *env;	156	DB_ENV *env;
61	DB *db;	157	DB *db;
62	DB_TXN *txn;	158	DB_TXN *txn;
63	DBC *cursor;	159	DBC *dbc;
		160
		161	UV uv1;
64	int int1, int2;	162	int int1, int2;
65	U32 uint1, uint2;	163	U32 uint1, uint2;
66	char *buf1, *buf2;	164	char *buf1, *buf2;
67	} aio_cb;	165	SV *sv1, *sv2, *sv3;
68		166
		167	DBT dbt1, dbt2, dbt3;
		168	DB_KEY_RANGE key_range;
		169	DB_SEQUENCE *seq;
		170	db_seq_t seq_t;
		171	} bdb_cb;
		172
69	typedef aio_cb *aio_req;	173	typedef bdb_cb *bdb_req;
70		174
71	enum {	175	enum {
72	PRI_MIN = -4,	176	PRI_MIN = -4,
73	PRI_MAX = 4,	177	PRI_MAX = 4,
74		178
…		…
91		195
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	196	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		197
94	static unsigned int started, idle, wanted;	198	static unsigned int started, idle, wanted;
95		199
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 */	200	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	201	static mutex_t wrklock = X_MUTEX_INIT;
107		202
108	typedef struct worker {	203	typedef struct worker {
109	/* locked by wrklock */	204	/* locked by wrklock */
110	struct worker *prev, *next;	205	struct worker *prev, *next;
111		206
112	pthread_t tid;	207	thread_t tid;
113		208
114	/* locked by reslock, reqlock or wrklock */	209	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	210	bdb_req req; /* currently processed request */
116	void *dbuf;	211	void *dbuf;
117	DIR *dirp;	212	DIR *dirp;
118	} worker;	213	} worker;
119		214
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	215	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	227	}
133		228
134	static volatile unsigned int nreqs, nready, npending;	229	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	230	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	231	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	232	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		233
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	234	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	235	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	236	static cond_t reqwait = X_COND_INIT;
142		237
143	#if WORDACCESS_UNSAFE	238	#if WORDACCESS_UNSAFE
144		239
145	static unsigned int get_nready ()	240	static unsigned int get_nready (void)
146	{	241	{
147	unsigned int retval;	242	unsigned int retval;
148		243
149	LOCK (reqlock);	244	X_LOCK (reqlock);
150	retval = nready;	245	retval = nready;
151	UNLOCK (reqlock);	246	X_UNLOCK (reqlock);
152		247
153	return retval;	248	return retval;
154	}	249	}
155		250
156	static unsigned int get_npending ()	251	static unsigned int get_npending (void)
157	{	252	{
158	unsigned int retval;	253	unsigned int retval;
159		254
160	LOCK (reslock);	255	X_LOCK (reslock);
161	retval = npending;	256	retval = npending;
162	UNLOCK (reslock);	257	X_UNLOCK (reslock);
163		258
164	return retval;	259	return retval;
165	}	260	}
166		261
167	static unsigned int get_nthreads ()	262	static unsigned int get_nthreads (void)
168	{	263	{
169	unsigned int retval;	264	unsigned int retval;
170		265
171	LOCK (wrklock);	266	X_LOCK (wrklock);
172	retval = started;	267	retval = started;
173	UNLOCK (wrklock);	268	X_UNLOCK (wrklock);
174		269
175	return retval;	270	return retval;
176	}	271	}
177		272
178	#else	273	#else
…		…
187	* a somewhat faster data structure might be nice, but	282	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	283	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	284	* per shift, the most expensive operation.
190	*/	285	*/
191	typedef struct {	286	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	287	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	288	int size;
194	} reqq;	289	} reqq;
195		290
196	static reqq req_queue;	291	static reqq req_queue;
197	static reqq res_queue;	292	static reqq res_queue;
198		293
199	int reqq_push (reqq *q, aio_req req)	294	int reqq_push (reqq *q, bdb_req req)
200	{	295	{
201	int pri = req->pri;	296	int pri = req->pri;
202	req->next = 0;	297	req->next = 0;
203		298
204	if (q->qe[pri])	299	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	305	q->qe[pri] = q->qs[pri] = req;
211		306
212	return q->size++;	307	return q->size++;
213	}	308	}
214		309
215	aio_req reqq_shift (reqq *q)	310	bdb_req reqq_shift (reqq *q)
216	{	311	{
217	int pri;	312	int pri;
218		313
219	if (!q->size)	314	if (!q->size)
220	return 0;	315	return 0;
221		316
222	--q->size;	317	--q->size;
223		318
224	for (pri = NUM_PRI; pri--; )	319	for (pri = NUM_PRI; pri--; )
225	{	320	{
226	aio_req req = q->qs[pri];	321	bdb_req req = q->qs[pri];
227		322
228	if (req)	323	if (req)
229	{	324	{
230	if (!(q->qs[pri] = req->next))	325	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	326	q->qe[pri] = 0;
…		…
235	}	330	}
236		331
237	abort ();	332	abort ();
238	}	333	}
239		334
240	static int poll_cb ();	335	static int poll_cb (void);
241	static void req_free (aio_req req);	336	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);	337	static void req_cancel (bdb_req req);
243		338
244	static int req_invoke (aio_req req)	339	static int req_invoke (bdb_req req)
245	{	340	{
246	dSP;	341	dSP;
247		342
248	if (SvOK (req->callback))	343	if (SvOK (req->callback))
249	{	344	{
250	ENTER;	345	ENTER;
251	SAVETMPS;	346	SAVETMPS;
252	PUSHMARK (SP);	347	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		348
255	switch (req->type)	349	switch (req->type)
256	{	350	{
		351	case REQ_DB_CLOSE:
		352	SvREFCNT_dec (req->sv1);
		353	break;
		354
		355	case REQ_DB_GET:
		356	case REQ_DB_PGET:
		357	dbt_to_sv (req->sv3, &req->dbt3);
		358	break;
		359
		360	case REQ_C_GET:
		361	case REQ_C_PGET:
		362	dbt_to_sv (req->sv1, &req->dbt1);
		363	dbt_to_sv (req->sv2, &req->dbt2);
		364	dbt_to_sv (req->sv3, &req->dbt3);
		365	break;
		366
		367	case REQ_DB_PUT:
		368	case REQ_C_PUT:
		369	dbt_to_sv (0, &req->dbt1);
		370	dbt_to_sv (0, &req->dbt2);
		371	break;
		372
		373	case REQ_DB_KEY_RANGE:
		374	{
		375	AV *av = newAV ();
		376
		377	av_push (av, newSVnv (req->key_range.less));
		378	av_push (av, newSVnv (req->key_range.equal));
		379	av_push (av, newSVnv (req->key_range.greater));
		380
		381	SvREADONLY_off (req->sv1);
		382	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		383	SvREFCNT_dec (req->sv1);
		384	}
		385	break;
		386
		387	case REQ_SEQ_GET:
		388	SvREADONLY_off (req->sv1);
		389
		390	if (sizeof (IV) > 4)
		391	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		392	else
		393	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		394
		395	SvREFCNT_dec (req->sv1);
		396	break;
257	}	397	}
		398
		399	errno = req->result;
258		400
259	PUTBACK;	401	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	402	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	403	SPAGAIN;
262		404
…		…
265	}	407	}
266		408
267	return !SvTRUE (ERRSV);	409	return !SvTRUE (ERRSV);
268	}	410	}
269		411
270	static void req_free (aio_req req)	412	static void req_free (bdb_req req)
271	{	413	{
272	free (req->buf1);	414	free (req->buf1);
273	free (req->buf2);	415	free (req->buf2);
274	Safefree (req);	416	Safefree (req);
275	}	417	}
276		418
277	static void *aio_proc(void *arg);	419	#ifdef USE_SOCKETS_AS_HANDLES
		420	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		421	#else
		422	# define TO_SOCKET(x) (x)
		423	#endif
		424
		425	static void
		426	create_respipe (void)
		427	{
		428	#ifdef _WIN32
		429	int arg; /* argg */
		430	#endif
		431	int old_readfd = respipe [0];
		432
		433	if (respipe [1] >= 0)
		434	respipe_close (TO_SOCKET (respipe [1]));
		435
		436	#ifdef _WIN32
		437	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		438	#else
		439	if (pipe (respipe))
		440	#endif
		441	croak ("unable to initialize result pipe");
		442
		443	if (old_readfd >= 0)
		444	{
		445	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		446	croak ("unable to initialize result pipe(2)");
		447
		448	respipe_close (respipe [0]);
		449	respipe [0] = old_readfd;
		450	}
		451
		452	#ifdef _WIN32
		453	arg = 1;
		454	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		455	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		456	#else
		457	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		458	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		459	#endif
		460	croak ("unable to initialize result pipe(3)");
		461
		462	respipe_osf [0] = TO_SOCKET (respipe [0]);
		463	respipe_osf [1] = TO_SOCKET (respipe [1]);
		464	}
		465
		466	X_THREAD_PROC (bdb_proc);
278		467
279	static void start_thread (void)	468	static void start_thread (void)
280	{	469	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	470	worker *wrk = calloc (1, sizeof (worker));
285		471
286	if (!wrk)	472	if (!wrk)
287	croak ("unable to allocate worker thread data");	473	croak ("unable to allocate worker thread data");
288		474
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);	475	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	476	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	477	{
302	wrk->prev = &wrk_first;	478	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	479	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	480	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	481	wrk_first.next = wrk;
306	++started;	482	++started;
307	}	483	}
308	else	484	else
309	free (wrk);	485	free (wrk);
310		486
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	487	X_UNLOCK (wrklock);
313	}	488	}
314		489
315	static void maybe_start_thread ()	490	static void maybe_start_thread (void)
316	{	491	{
317	if (get_nthreads () >= wanted)	492	if (get_nthreads () >= wanted)
318	return;	493	return;
319		494
320	/* todo: maybe use idle here, but might be less exact */	495	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	497	return;
323		498
324	start_thread ();	499	start_thread ();
325	}	500	}
326		501
327	static void req_send (aio_req req)	502	static void req_send (bdb_req req)
328	{	503	{
		504	SV *wait_callback = 0;
		505
		506	// synthesize callback if none given
		507	if (!SvOK (req->callback))
		508	{
		509	int count;
		510
		511	dSP;
		512	PUSHMARK (SP);
		513	PUTBACK;
		514	count = call_sv (prepare_cb, G_ARRAY);
		515	SPAGAIN;
		516
		517	if (count != 2)
		518	croak ("prepare callback must return exactly two values\n");
		519
		520	wait_callback = POPs;
		521	SvREFCNT_dec (req->callback);
		522	req->callback = SvREFCNT_inc (POPs);
		523	}
		524
329	++nreqs;	525	++nreqs;
330		526
331	LOCK (reqlock);	527	X_LOCK (reqlock);
332	++nready;	528	++nready;
333	reqq_push (&req_queue, req);	529	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	530	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	531	X_UNLOCK (reqlock);
336		532
337	maybe_start_thread ();	533	maybe_start_thread ();
		534
		535	if (wait_callback)
		536	{
		537	dSP;
		538	PUSHMARK (SP);
		539	PUTBACK;
		540	call_sv (wait_callback, G_DISCARD);
		541	}
338	}	542	}
339		543
340	static void end_thread (void)	544	static void end_thread (void)
341	{	545	{
342	aio_req req;	546	bdb_req req;
343		547
344	Newz (0, req, 1, aio_cb);	548	Newz (0, req, 1, bdb_cb);
345		549
346	req->type = REQ_QUIT;	550	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	551	req->pri = PRI_MAX + PRI_BIAS;
348		552
349	LOCK (reqlock);	553	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	554	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	555	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	556	X_UNLOCK (reqlock);
353		557
354	LOCK (wrklock);	558	X_LOCK (wrklock);
355	--started;	559	--started;
356	UNLOCK (wrklock);	560	X_UNLOCK (wrklock);
357	}	561	}
358		562
359	static void set_max_idle (int nthreads)	563	static void set_max_idle (int nthreads)
360	{	564	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	565	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	566	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	567	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	568	}
365		569
366	static void min_parallel (int nthreads)	570	static void min_parallel (int nthreads)
367	{	571	{
368	if (wanted < nthreads)	572	if (wanted < nthreads)
…		…
376		580
377	while (started > wanted)	581	while (started > wanted)
378	end_thread ();	582	end_thread ();
379	}	583	}
380		584
381	static void poll_wait ()	585	static void poll_wait (void)
382	{	586	{
383	fd_set rfd;	587	fd_set rfd;
384		588
385	while (nreqs)	589	while (nreqs)
386	{	590	{
387	int size;	591	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	592	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	593	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	594	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		595
392	if (size)	596	if (size)
393	return;	597	return;
394		598
395	maybe_start_thread ();	599	maybe_start_thread ();
396		600
397	FD_ZERO(&rfd);	601	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	602	FD_SET (respipe [0], &rfd);
399		603
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	604	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	605	}
402	}	606	}
403		607
404	static int poll_cb ()	608	static int poll_cb (void)
405	{	609	{
406	dSP;	610	dSP;
407	int count = 0;	611	int count = 0;
408	int maxreqs = max_poll_reqs;	612	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	613	int do_croak = 0;
410	struct timeval tv_start, tv_now;	614	struct timeval tv_start, tv_now;
411	aio_req req;	615	bdb_req req;
412		616
413	if (max_poll_time)	617	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	618	gettimeofday (&tv_start, 0);
415		619
416	for (;;)	620	for (;;)
417	{	621	{
418	for (;;)	622	for (;;)
419	{	623	{
420	maybe_start_thread ();	624	maybe_start_thread ();
421		625
422	LOCK (reslock);	626	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	627	req = reqq_shift (&res_queue);
424		628
425	if (req)	629	if (req)
426	{	630	{
427	--npending;	631	--npending;
428		632
429	if (!res_queue.size)	633	if (!res_queue.size)
430	{	634	{
431	/* read any signals sent by the worker threads */	635	/* read any signals sent by the worker threads */
432	char buf [4];	636	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	637	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	638	;
435	}	639	}
436	}	640	}
437		641
438	UNLOCK (reslock);	642	X_UNLOCK (reslock);
439		643
440	if (!req)	644	if (!req)
441	break;	645	break;
442		646
443	--nreqs;	647	--nreqs;
…		…
473	}	677	}
474		678
475	return count;	679	return count;
476	}	680	}
477		681
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	/*****************************************************************************/	682	/*****************************************************************************/
491		683
492	static void *aio_proc (void *thr_arg)	684	X_THREAD_PROC (bdb_proc)
493	{	685	{
494	aio_req req;	686	bdb_req req;
495	struct timespec ts;	687	struct timespec ts;
496	worker *self = (worker *)thr_arg;	688	worker *self = (worker *)thr_arg;
497		689
498	/* try to distribute timeouts somewhat evenly */	690	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	691	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		692
502	for (;;)	693	for (;;)
503	{	694	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	695	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		696
506	LOCK (reqlock);	697	X_LOCK (reqlock);
507		698
508	for (;;)	699	for (;;)
509	{	700	{
510	self->req = req = reqq_shift (&req_queue);	701	self->req = req = reqq_shift (&req_queue);
511		702
512	if (req)	703	if (req)
513	break;	704	break;
514		705
515	++idle;	706	++idle;
516		707
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	708	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	709	== ETIMEDOUT)
519	{	710	{
520	if (idle > max_idle)	711	if (idle > max_idle)
521	{	712	{
522	--idle;	713	--idle;
523	UNLOCK (reqlock);	714	X_UNLOCK (reqlock);
524	LOCK (wrklock);	715	X_LOCK (wrklock);
525	--started;	716	--started;
526	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
527	goto quit;	718	goto quit;
528	}	719	}
529		720
530	/* we are allowed to idle, so do so without any timeout */	721	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	722	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	723	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	724	}
534		725
535	--idle;	726	--idle;
536	}	727	}
537		728
538	--nready;	729	--nready;
539		730
540	UNLOCK (reqlock);	731	X_UNLOCK (reqlock);
541		732
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	733	switch (req->type)
545	{	734	{
546	case REQ_QUIT:	735	case REQ_QUIT:
		736	req->result = ENOSYS;
547	goto quit;	737	goto quit;
548		738
		739	case REQ_ENV_OPEN:
		740	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		741	break;
		742
		743	case REQ_ENV_CLOSE:
		744	req->result = req->env->close (req->env, req->uint1);
		745	break;
		746
		747	case REQ_ENV_TXN_CHECKPOINT:
		748	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		749	break;
		750
		751	case REQ_ENV_LOCK_DETECT:
		752	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		753	break;
		754
		755	case REQ_ENV_MEMP_SYNC:
		756	req->result = req->env->memp_sync (req->env, 0);
		757	break;
		758
		759	case REQ_ENV_MEMP_TRICKLE:
		760	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		761	break;
		762
		763	case REQ_DB_OPEN:
		764	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		765	break;
		766
		767	case REQ_DB_CLOSE:
		768	req->result = req->db->close (req->db, req->uint1);
		769	break;
		770
		771	case REQ_DB_COMPACT:
		772	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		773	break;
		774
		775	case REQ_DB_SYNC:
		776	req->result = req->db->sync (req->db, req->uint1);
		777	break;
		778
		779	case REQ_DB_UPGRADE:
		780	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		781	break;
		782
		783	case REQ_DB_PUT:
		784	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		785	break;
		786
		787	case REQ_DB_GET:
		788	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		789	break;
		790
		791	case REQ_DB_PGET:
		792	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		793	break;
		794
		795	case REQ_DB_DEL:
		796	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		797	break;
		798
		799	case REQ_DB_KEY_RANGE:
		800	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		801	break;
		802
		803	case REQ_TXN_COMMIT:
		804	req->result = req->txn->commit (req->txn, req->uint1);
		805	break;
		806
		807	case REQ_TXN_ABORT:
		808	req->result = req->txn->abort (req->txn);
		809	break;
		810
		811	case REQ_TXN_FINISH:
		812	if (req->txn->flags & TXN_DEADLOCK)
		813	{
		814	req->result = req->txn->abort (req->txn);
		815	if (!req->result)
		816	req->result = DB_LOCK_DEADLOCK;
		817	}
		818	else
		819	req->result = req->txn->commit (req->txn, req->uint1);
		820	break;
		821
		822	case REQ_C_CLOSE:
		823	req->result = req->dbc->c_close (req->dbc);
		824	break;
		825
		826	case REQ_C_COUNT:
		827	{
		828	db_recno_t recno;
		829	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		830	req->uv1 = recno;
		831	}
		832	break;
		833
		834	case REQ_C_PUT:
		835	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		836	break;
		837
		838	case REQ_C_GET:
		839	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		840	break;
		841
		842	case REQ_C_PGET:
		843	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		844	break;
		845
		846	case REQ_C_DEL:
		847	req->result = req->dbc->c_del (req->dbc, req->uint1);
		848	break;
		849
		850	case REQ_SEQ_OPEN:
		851	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		852	break;
		853
		854	case REQ_SEQ_CLOSE:
		855	req->result = req->seq->close (req->seq, req->uint1);
		856	break;
		857
		858	case REQ_SEQ_GET:
		859	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		860	break;
		861
		862	case REQ_SEQ_REMOVE:
		863	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		864	break;
		865
549	default:	866	default:
550	//req->result = ENOSYS;	867	req->result = ENOSYS;
551	break;	868	break;
552	}	869	}
553		870
554	//req->errorno = errno;	871	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		872	req->txn->flags |= TXN_DEADLOCK;
555		873
556	LOCK (reslock);	874	X_LOCK (reslock);
557		875
558	++npending;	876	++npending;
559		877
560	if (!reqq_push (&res_queue, req))	878	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	879	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	880	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		881
564	self->req = 0;	882	self->req = 0;
565	worker_clear (self);	883	worker_clear (self);
566		884
567	UNLOCK (reslock);	885	X_UNLOCK (reslock);
568	}	886	}
569		887
570	quit:	888	quit:
571	LOCK (wrklock);	889	X_LOCK (wrklock);
572	worker_free (self);	890	worker_free (self);
573	UNLOCK (wrklock);	891	X_UNLOCK (wrklock);
574		892
575	return 0;	893	return 0;
576	}	894	}
577		895
578	/*****************************************************************************/	896	/*****************************************************************************/
579		897
580	static void atfork_prepare (void)	898	static void atfork_prepare (void)
581	{	899	{
582	LOCK (wrklock);	900	X_LOCK (wrklock);
583	LOCK (reqlock);	901	X_LOCK (reqlock);
584	LOCK (reslock);	902	X_LOCK (reslock);
585	}	903	}
586		904
587	static void atfork_parent (void)	905	static void atfork_parent (void)
588	{	906	{
589	UNLOCK (reslock);	907	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	908	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	909	X_UNLOCK (wrklock);
592	}	910	}
593		911
594	static void atfork_child (void)	912	static void atfork_child (void)
595	{	913	{
596	aio_req prv;	914	bdb_req prv;
597		915
598	while (prv = reqq_shift (&req_queue))	916	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	917	req_free (prv);
600		918
601	while (prv = reqq_shift (&res_queue))	919	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	934	idle = 0;
617	nreqs = 0;	935	nreqs = 0;
618	nready = 0;	936	nready = 0;
619	npending = 0;	937	npending = 0;
620		938
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	939	create_respipe ();
624		940
625	atfork_parent ();	941	atfork_parent ();
626	}	942	}
627		943
628	#define dREQ(reqtype) \	944	#define dREQ(reqtype) \
629	aio_req req; \	945	bdb_req req; \
630	int req_pri = next_pri; \	946	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	947	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	948	\
633	if (SvOK (callback) && !SvROK (callback)) \	949	if (SvOK (callback) && !SvROK (callback)) \
634	croak ("callback must be undef or of reference type"); \	950	croak ("callback must be undef or of reference type"); \
635	\	951	\
636	Newz (0, req, 1, aio_cb); \	952	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	953	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	954	croak ("out of memory during bdb_req allocation"); \
639	\	955	\
640	req->callback = newSVsv (callback); \	956	req->callback = newSVsv (callback); \
641	req->type = (reqtype); \	957	req->type = (reqtype); \
642	req->pri = req_pri	958	req->pri = req_pri
643		959
644	#define REQ_SEND \	960	#define REQ_SEND \
645	req_send (req)	961	req_send (req)
646		962
647	#define SvPTR(var, arg, type, class) \	963	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	964	if (!SvOK (arg)) \
		965	{ \
		966	if (nullok != 1) \
		967	croak (# var " must be a " # class " object, not undef"); \
		968	\
649	(var) = 0; \	969	(var) = 0; \
		970	} \
650	else if (sv_derived_from ((arg), # class)) \	971	else if (sv_derived_from ((arg), # class)) \
651	{ \	972	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	973	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	974	(var) = INT2PTR (type, tmp); \
		975	if (!var && nullok != 2) \
		976	croak (# var " is not a valid " # class " object anymore"); \
654	} \	977	} \
655	else \	978	else \
656	Perl_croak (# var " is not of type " # type)	979	croak (# var " is not of type " # class); \
657		980	\
		981
		982	static void
		983	ptr_nuke (SV *sv)
		984	{
		985	assert (SvROK (sv));
		986	sv_setiv (SvRV (sv), 0);
		987	}
		988
		989	static int
		990	errno_get (pTHX_ SV *sv, MAGIC *mg)
		991	{
		992	if (*mg->mg_ptr == '!') // should always be the case
		993	if (-30999 <= errno && errno <= -30800)
		994	{
		995	sv_setnv (sv, (NV)errno);
		996	sv_setpv (sv, db_strerror (errno));
		997	SvNOK_on (sv); /* what a wonderful hack! */
		998	// ^^^ copied from perl sources
		999	return 0;
		1000	}
		1001
		1002	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1003	}
		1004
		1005	static MGVTBL vtbl_errno;
		1006
		1007	// this wonderful hack :( patches perl's $! variable to support our errno values
		1008	static void
		1009	patch_errno (void)
		1010	{
		1011	SV *sv;
		1012	MAGIC *mg;
		1013
		1014	if (!(sv = get_sv ("!", 1)))
		1015	return;
		1016
		1017	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1018	return;
		1019
		1020	if (mg->mg_virtual != &PL_vtbl_sv)
		1021	return;
		1022
		1023	vtbl_errno = PL_vtbl_sv;
		1024	vtbl_errno.svt_get = errno_get;
		1025	mg->mg_virtual = &vtbl_errno;
		1026	}
		1027
658	MODULE = BDB PACKAGE = BDB	1028	MODULE = BDB PACKAGE = BDB
659		1029
660	PROTOTYPES: ENABLE	1030	PROTOTYPES: ENABLE
661		1031
662	BOOT:	1032	BOOT:
…		…
677	const_iv (INIT_TXN)	1047	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1048	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1049	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1050	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1051	const_iv (CREATE)
		1052	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1053	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1054	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1055	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1056	const_iv (PRIVATE)
686	const_iv (REGISTER)	1057	const_iv (REGISTER)
…		…
692	const_iv (DSYNC_DB)	1063	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)	1064	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)	1065	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)	1066	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1067	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1068	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1069	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1070	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1071	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1072	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1073	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1074	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1075	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1076	const_iv (TXN_WRITE_NOSYNC)
		1077	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1078	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1079	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1080	const_iv (XA_CREATE)
710	const_iv (BTREE)	1081	const_iv (BTREE)
711	const_iv (HASH)	1082	const_iv (HASH)
712	const_iv (QUEUE)	1083	const_iv (QUEUE)
713	const_iv (RECNO)	1084	const_iv (RECNO)
714	const_iv (UNKNOWN)	1085	const_iv (UNKNOWN)
715	const_iv (EXCL)	1086	const_iv (EXCL)
		1087	const_iv (READ_COMMITTED)
716	const_iv (READ_UNCOMMITTED)	1088	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1089	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1090	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1091	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1092	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1093	const_iv (DUP)
723	const_iv (DUPSORT)	1094	const_iv (DUPSORT)
724	const_iv (RECNUM)	1095	const_iv (RECNUM)
725	const_iv (RENUMBER)	1096	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1097	const_iv (REVSPLITOFF)
727	const_iv (INORDER)	1098	const_iv (INORDER)
728	const_iv (CONSUME)	1099	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1100	const_iv (CONSUME_WAIT)
		1101	const_iv (GET_BOTH)
		1102	const_iv (GET_BOTH_RANGE)
		1103	//const_iv (SET_RECNO)
		1104	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1105	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1106	const_iv (JOIN_ITEM)
		1107	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1108	const_iv (RMW)
733		1109
734	const_iv (NOTFOUND)	1110	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1111	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1112	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1113	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1114	const_iv (RUNRECOVERY)
		1115	const_iv (OLD_VERSION)
		1116	const_iv (REP_HANDLE_DEAD)
		1117	const_iv (REP_LOCKOUT)
		1118	const_iv (SECONDARY_BAD)
		1119
		1120	const_iv (FREE_SPACE)
		1121	const_iv (FREELIST_ONLY)
		1122
		1123	const_iv (APPEND)
		1124	const_iv (NODUPDATA)
		1125	const_iv (NOOVERWRITE)
		1126
		1127	const_iv (TXN_NOWAIT)
		1128	const_iv (TXN_SYNC)
		1129
		1130	const_iv (SET_LOCK_TIMEOUT)
		1131	const_iv (SET_TXN_TIMEOUT)
		1132
		1133	const_iv (FIRST)
		1134	const_iv (NEXT)
		1135	const_iv (NEXT_DUP)
		1136	const_iv (NEXT_NODUP)
		1137	const_iv (PREV)
		1138	const_iv (PREV_NODUP)
		1139	const_iv (SET)
		1140	const_iv (SET_RANGE)
		1141	const_iv (LAST)
		1142	const_iv (BEFORE)
		1143	const_iv (AFTER)
		1144	const_iv (CURRENT)
		1145	const_iv (KEYFIRST)
		1146	const_iv (KEYLAST)
		1147	const_iv (NODUPDATA)
		1148
		1149	const_iv (FORCE)
		1150
		1151	const_iv (LOCK_DEFAULT)
		1152	const_iv (LOCK_EXPIRE)
		1153	const_iv (LOCK_MAXLOCKS)
		1154	const_iv (LOCK_MAXWRITE)
		1155	const_iv (LOCK_MINLOCKS)
		1156	const_iv (LOCK_MINWRITE)
		1157	const_iv (LOCK_OLDEST)
		1158	const_iv (LOCK_RANDOM)
		1159	const_iv (LOCK_YOUNGEST)
		1160
		1161	const_iv (SEQ_DEC)
		1162	const_iv (SEQ_INC)
		1163	const_iv (SEQ_WRAP)
		1164
		1165	const_iv (BUFFER_SMALL)
		1166	const_iv (DONOTINDEX)
		1167	const_iv (KEYEMPTY )
		1168	const_iv (KEYEXIST )
		1169	const_iv (LOCK_DEADLOCK)
		1170	const_iv (LOCK_NOTGRANTED)
		1171	const_iv (LOG_BUFFER_FULL)
		1172	const_iv (NOSERVER)
		1173	const_iv (NOSERVER_HOME)
		1174	const_iv (NOSERVER_ID)
		1175	const_iv (NOTFOUND)
		1176	const_iv (PAGE_NOTFOUND)
		1177	const_iv (REP_DUPMASTER)
		1178	const_iv (REP_HANDLE_DEAD)
		1179	const_iv (REP_HOLDELECTION)
		1180	const_iv (REP_IGNORE)
		1181	const_iv (REP_ISPERM)
		1182	const_iv (REP_JOIN_FAILURE)
		1183	const_iv (REP_LOCKOUT)
		1184	const_iv (REP_NEWMASTER)
		1185	const_iv (REP_NEWSITE)
		1186	const_iv (REP_NOTPERM)
		1187	const_iv (REP_UNAVAIL)
		1188	const_iv (RUNRECOVERY)
		1189	const_iv (SECONDARY_BAD)
		1190	const_iv (VERIFY_BAD)
		1191	const_iv (VERSION_MISMATCH)
		1192
		1193	const_iv (VERB_DEADLOCK)
		1194	const_iv (VERB_RECOVERY)
		1195	const_iv (VERB_REGISTER)
		1196	const_iv (VERB_REPLICATION)
		1197	const_iv (VERB_WAITSFOR)
		1198
		1199	const_iv (VERSION_MAJOR)
		1200	const_iv (VERSION_MINOR)
		1201	const_iv (VERSION_PATCH)
		1202	#if DB_VERSION_MINOR >= 5
		1203	const_iv (MULTIVERSION)
		1204	const_iv (TXN_SNAPSHOT)
		1205	#endif
		1206	#if DB_VERSION_MINOR >= 6
		1207	const_iv (PREV_DUP)
		1208	const_iv (PRIORITY_UNCHANGED)
		1209	const_iv (PRIORITY_VERY_LOW)
		1210	const_iv (PRIORITY_LOW)
		1211	const_iv (PRIORITY_DEFAULT)
		1212	const_iv (PRIORITY_HIGH)
		1213	const_iv (PRIORITY_VERY_HIGH)
		1214	#endif
739	};	1215	};
740		1216
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1217	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1218	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1219
744	create_pipe ();	1220	newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1221	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1222
		1223	create_respipe ();
		1224
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1225	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1226	#ifdef _WIN32
		1227	X_MUTEX_CHECK (wrklock);
		1228	X_MUTEX_CHECK (reslock);
		1229	X_MUTEX_CHECK (reqlock);
		1230
		1231	X_COND_CHECK (reqwait);
		1232	#endif
		1233	patch_errno ();
746	}	1234	}
747		1235
748	void	1236	void
749	max_poll_reqs (int nreqs)	1237	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1238	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1267	max_outstanding = maxreqs;
780	OUTPUT:	1268	OUTPUT:
781	RETVAL	1269	RETVAL
782		1270
783	int	1271	int
784	bdbreq_pri (int pri = 0)	1272	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1273	PROTOTYPE: ;$
786	CODE:	1274	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1275	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1276	if (items > 0)
789	{	1277	{
…		…
793	}	1281	}
794	OUTPUT:	1282	OUTPUT:
795	RETVAL	1283	RETVAL
796		1284
797	void	1285	void
798	bdbreq_nice (int nice = 0)	1286	dbreq_nice (int nice = 0)
799	CODE:	1287	CODE:
800	nice = next_pri - nice;	1288	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1289	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1290	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1291	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1299	poll_wait ();
812	poll_cb ();	1300	poll_cb ();
813	}	1301	}
814		1302
815	int	1303	int
816	poll()	1304	poll ()
817	PROTOTYPE:	1305	PROTOTYPE:
818	CODE:	1306	CODE:
819	poll_wait ();	1307	poll_wait ();
820	RETVAL = poll_cb ();	1308	RETVAL = poll_cb ();
821	OUTPUT:	1309	OUTPUT:
822	RETVAL	1310	RETVAL
823		1311
824	int	1312	int
825	poll_fileno()	1313	poll_fileno ()
826	PROTOTYPE:	1314	PROTOTYPE:
827	CODE:	1315	CODE:
828	RETVAL = respipe [0];	1316	RETVAL = respipe [0];
829	OUTPUT:	1317	OUTPUT:
830	RETVAL	1318	RETVAL
831		1319
832	int	1320	int
833	poll_cb(...)	1321	poll_cb (...)
834	PROTOTYPE:	1322	PROTOTYPE:
835	CODE:	1323	CODE:
836	RETVAL = poll_cb ();	1324	RETVAL = poll_cb ();
837	OUTPUT:	1325	OUTPUT:
838	RETVAL	1326	RETVAL
839		1327
840	void	1328	void
841	poll_wait()	1329	poll_wait ()
842	PROTOTYPE:	1330	PROTOTYPE:
843	CODE:	1331	CODE:
844	poll_wait ();	1332	poll_wait ();
845		1333
846	int	1334	int
847	nreqs()	1335	nreqs ()
848	PROTOTYPE:	1336	PROTOTYPE:
849	CODE:	1337	CODE:
850	RETVAL = nreqs;	1338	RETVAL = nreqs;
851	OUTPUT:	1339	OUTPUT:
852	RETVAL	1340	RETVAL
853		1341
854	int	1342	int
855	nready()	1343	nready ()
856	PROTOTYPE:	1344	PROTOTYPE:
857	CODE:	1345	CODE:
858	RETVAL = get_nready ();	1346	RETVAL = get_nready ();
859	OUTPUT:	1347	OUTPUT:
860	RETVAL	1348	RETVAL
861		1349
862	int	1350	int
863	npending()	1351	npending ()
864	PROTOTYPE:	1352	PROTOTYPE:
865	CODE:	1353	CODE:
866	RETVAL = get_npending ();	1354	RETVAL = get_npending ();
867	OUTPUT:	1355	OUTPUT:
868	RETVAL	1356	RETVAL
869		1357
870	int	1358	int
871	nthreads()	1359	nthreads ()
872	PROTOTYPE:	1360	PROTOTYPE:
873	CODE:	1361	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1362	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1363	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1364	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1365	OUTPUT:
878	RETVAL	1366	RETVAL
879		1367
		1368	void
		1369	set_sync_prepare (SV *cb)
		1370	PROTOTYPE: &
		1371	CODE:
		1372	SvREFCNT_dec (prepare_cb);
		1373	prepare_cb = newSVsv (cb);
		1374
		1375	char *
		1376	strerror (int errorno = errno)
		1377	PROTOTYPE: ;$
		1378	CODE:
		1379	RETVAL = db_strerror (errorno);
		1380	OUTPUT:
		1381	RETVAL
		1382
880	DB_ENV *	1383	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1384	db_env_create (U32 env_flags = 0)
882	CODE:	1385	CODE:
883	{	1386	{
884	int err = db_env_create (&RETVAL, env_flags);	1387	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1388	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1389	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1390
		1391	if (0)
		1392	{
		1393	RETVAL->set_errcall (RETVAL, debug_errcall);
		1394	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1395	}
		1396	}
		1397	OUTPUT:
		1398	RETVAL
		1399
889	void	1400	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1401	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
891	CODE:	1402	CODE:
892	{	1403	{
893	dREQ (REQ_ENV_OPEN);	1404	dREQ (REQ_ENV_OPEN);
		1405
894	req->env = env;	1406	req->env = env;
895	req->uint1 = open_flags;	1407	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1408	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1409	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1410	REQ_SEND;
899	}	1411	}
900		1412
901	void	1413	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1414	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
903	CODE:	1415	CODE:
904	{	1416	{
905	dREQ (REQ_ENV_CLOSE);	1417	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1418	req->env = env;
907	req->uint1 = flags;	1419	req->uint1 = flags;
908	REQ_SEND;	1420	REQ_SEND;
		1421	ptr_nuke (ST (0));
909	}	1422	}
		1423
		1424	void
		1425	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1426	CODE:
		1427	{
		1428	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1429	req->env = env;
		1430	req->uint1 = kbyte;
		1431	req->int1 = min;
		1432	req->uint2 = flags;
		1433	REQ_SEND;
		1434	}
		1435
		1436	void
		1437	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1438	CODE:
		1439	{
		1440	dREQ (REQ_ENV_LOCK_DETECT);
		1441	req->env = env;
		1442	req->uint1 = flags;
		1443	req->uint2 = atype;
		1444	REQ_SEND;
		1445	}
		1446
		1447	void
		1448	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1449	CODE:
		1450	{
		1451	dREQ (REQ_ENV_MEMP_SYNC);
		1452	req->env = env;
		1453	REQ_SEND;
		1454	}
		1455
		1456	void
		1457	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1458	CODE:
		1459	{
		1460	dREQ (REQ_ENV_MEMP_TRICKLE);
		1461	req->env = env;
		1462	req->int1 = percent;
		1463	REQ_SEND;
		1464	}
		1465
910		1466
911	DB *	1467	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1468	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1469	CODE:
914	{	1470	{
915	int err = db_create (&RETVAL, env, flags);	1471	errno = db_create (&RETVAL, env, flags);
916	if (err)	1472	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1473	croak ("db_create: %s", db_strerror (errno));
918	}
919		1474
		1475	if (RETVAL)
		1476	RETVAL->app_private = (void *)newSVsv (ST (0));
		1477	}
		1478	OUTPUT:
		1479	RETVAL
		1480
920	void	1481	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)	1482	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:	1483	CODE:
923	{	1484	{
924	dREQ (REQ_DB_OPEN);	1485	dREQ (REQ_DB_OPEN);
925	req->db = db;	1486	req->db = db;
926	req->txn = txnid;	1487	req->txn = txnid;
927	req->buf1 = strdup (file);	1488	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1489	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1490	req->int1 = type;
930	req->uint1 = flags;	1491	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1492	req->int2 = mode;
932	REQ_SEND;	1493	REQ_SEND;
933	}	1494	}
934		1495
935	void	1496	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1497	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
937	CODE:	1498	CODE:
938	{	1499	{
939	dREQ (REQ_DB_CLOSE);	1500	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1501	req->db = db;
941	req->uint1 = flags;	1502	req->uint1 = flags;
		1503	req->sv1 = (SV *)db->app_private;
		1504	REQ_SEND;
		1505	ptr_nuke (ST (0));
		1506	}
		1507
		1508	void
		1509	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)
		1510	CODE:
		1511	{
		1512	dREQ (REQ_DB_COMPACT);
		1513	req->db = db;
		1514	req->txn = txn;
		1515	sv_to_dbt (&req->dbt1, start);
		1516	sv_to_dbt (&req->dbt2, stop);
		1517	req->uint1 = flags;
		1518	REQ_SEND;
		1519	}
		1520
		1521	void
		1522	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1523	CODE:
		1524	{
		1525	dREQ (REQ_DB_SYNC);
		1526	req->db = db;
		1527	req->uint1 = flags;
		1528	REQ_SEND;
		1529	}
		1530
		1531	void
		1532	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = &PL_sv_undef)
		1533	CODE:
		1534	{
		1535	dREQ (REQ_DB_SYNC);
		1536	req->db = db;
		1537	req->buf1 = strdup (file);
		1538	req->uint1 = flags;
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
		1543	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1544	CODE:
		1545	{
		1546	dREQ (REQ_DB_KEY_RANGE);
		1547	req->db = db;
		1548	req->txn = txn;
		1549	sv_to_dbt (&req->dbt1, key);
		1550	req->uint1 = flags;
		1551	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1552	REQ_SEND;
		1553	}
		1554
		1555	void
		1556	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1557	CODE:
		1558	{
		1559	dREQ (REQ_DB_PUT);
		1560	req->db = db;
		1561	req->txn = txn;
		1562	sv_to_dbt (&req->dbt1, key);
		1563	sv_to_dbt (&req->dbt2, data);
		1564	req->uint1 = flags;
		1565	REQ_SEND;
		1566	}
		1567
		1568	void
		1569	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1570	CODE:
		1571	if (SvREADONLY (data))
		1572	croak ("can't modify read-only data scalar in db_get");
		1573	{
		1574	dREQ (REQ_DB_GET);
		1575	req->db = db;
		1576	req->txn = txn;
		1577	req->uint1 = flags;
		1578	sv_to_dbt (&req->dbt1, key);
		1579	req->dbt3.flags = DB_DBT_MALLOC;
		1580	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1581	REQ_SEND;
		1582	}
		1583
		1584	void
		1585	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1586	CODE:
		1587	if (SvREADONLY (data))
		1588	croak ("can't modify read-only data scalar in db_pget");
		1589	{
		1590	dREQ (REQ_DB_PGET);
		1591	req->db = db;
		1592	req->txn = txn;
		1593	req->uint1 = flags;
		1594	sv_to_dbt (&req->dbt1, key);
		1595	sv_to_dbt (&req->dbt2, pkey);
		1596	req->dbt3.flags = DB_DBT_MALLOC;
		1597	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
		1602	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1603	CODE:
		1604	{
		1605	dREQ (REQ_DB_DEL);
		1606	req->db = db;
		1607	req->txn = txn;
		1608	req->uint1 = flags;
		1609	sv_to_dbt (&req->dbt1, key);
		1610	REQ_SEND;
		1611	}
		1612
		1613	void
		1614	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1615	CODE:
		1616	{
		1617	dREQ (REQ_TXN_COMMIT);
		1618	req->txn = txn;
		1619	req->uint1 = flags;
		1620	REQ_SEND;
		1621	ptr_nuke (ST (0));
		1622	}
		1623
		1624	void
		1625	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1626	CODE:
		1627	{
		1628	dREQ (REQ_TXN_ABORT);
		1629	req->txn = txn;
		1630	REQ_SEND;
		1631	ptr_nuke (ST (0));
		1632	}
		1633
		1634	void
		1635	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1636	CODE:
		1637	{
		1638	dREQ (REQ_TXN_FINISH);
		1639	req->txn = txn;
		1640	req->uint1 = flags;
		1641	REQ_SEND;
		1642	ptr_nuke (ST (0));
		1643	}
		1644
		1645	void
		1646	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1647	CODE:
		1648	{
		1649	dREQ (REQ_C_CLOSE);
		1650	req->dbc = dbc;
		1651	REQ_SEND;
		1652	ptr_nuke (ST (0));
		1653	}
		1654
		1655	void
		1656	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1657	CODE:
		1658	{
		1659	dREQ (REQ_C_COUNT);
		1660	req->dbc = dbc;
		1661	req->sv1 = SvREFCNT_inc (count);
		1662	REQ_SEND;
		1663	}
		1664
		1665	void
		1666	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	dREQ (REQ_C_PUT);
		1670	req->dbc = dbc;
		1671	sv_to_dbt (&req->dbt1, key);
		1672	sv_to_dbt (&req->dbt2, data);
		1673	req->uint1 = flags;
		1674	REQ_SEND;
		1675	}
		1676
		1677	void
		1678	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1679	CODE:
		1680	{
		1681	dREQ (REQ_C_GET);
		1682	req->dbc = dbc;
		1683	req->uint1 = flags;
		1684	if ((flags & DB_SET) == DB_SET
		1685	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1686	sv_to_dbt (&req->dbt1, key);
		1687	else
		1688	req->dbt1.flags = DB_DBT_MALLOC;
		1689
		1690	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1691
		1692	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1693	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1694	sv_to_dbt (&req->dbt3, data);
		1695	else
		1696	req->dbt3.flags = DB_DBT_MALLOC;
		1697
		1698	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1699	REQ_SEND;
		1700	}
		1701
		1702	void
		1703	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1704	CODE:
		1705	{
		1706	dREQ (REQ_C_PGET);
		1707	req->dbc = dbc;
		1708	req->uint1 = flags;
		1709	if ((flags & DB_SET) == DB_SET
		1710	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1711	sv_to_dbt (&req->dbt1, key);
		1712	else
		1713	req->dbt1.flags = DB_DBT_MALLOC;
		1714
		1715	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1716
		1717	req->dbt2.flags = DB_DBT_MALLOC;
		1718	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1719
		1720	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1721	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1722	sv_to_dbt (&req->dbt3, data);
		1723	else
		1724	req->dbt3.flags = DB_DBT_MALLOC;
		1725
		1726	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1732	CODE:
		1733	{
		1734	dREQ (REQ_C_DEL);
		1735	req->dbc = dbc;
		1736	req->uint1 = flags;
		1737	REQ_SEND;
		1738	}
		1739
		1740
		1741	void
		1742	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1743	CODE:
		1744	{
		1745	dREQ (REQ_SEQ_OPEN);
		1746	req->seq = seq;
		1747	req->txn = txnid;
		1748	req->uint1 = flags | DB_THREAD;
		1749	sv_to_dbt (&req->dbt1, key);
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
		1754	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1755	CODE:
		1756	{
		1757	dREQ (REQ_SEQ_CLOSE);
		1758	req->seq = seq;
		1759	req->uint1 = flags;
		1760	REQ_SEND;
		1761	ptr_nuke (ST (0));
		1762	}
		1763
		1764	void
		1765	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)
		1766	CODE:
		1767	{
		1768	dREQ (REQ_SEQ_GET);
		1769	req->seq = seq;
		1770	req->txn = txnid;
		1771	req->int1 = delta;
		1772	req->uint1 = flags;
		1773	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1774	REQ_SEND;
		1775	}
		1776
		1777	void
		1778	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1779	CODE:
		1780	{
		1781	dREQ (REQ_SEQ_REMOVE);
		1782	req->seq = seq;
		1783	req->txn = txnid;
		1784	req->uint1 = flags;
942	REQ_SEND;	1785	REQ_SEND;
943	}	1786	}
944		1787
945		1788
946	MODULE = BDB PACKAGE = BDB::Env	1789	MODULE = BDB PACKAGE = BDB::Env
947		1790
		1791	void
		1792	DESTROY (DB_ENV_ornuked *env)
		1793	CODE:
		1794	if (env)
		1795	env->close (env, 0);
		1796
		1797	int set_data_dir (DB_ENV *env, const char *dir)
		1798	CODE:
		1799	RETVAL = env->set_data_dir (env, dir);
		1800	OUTPUT:
		1801	RETVAL
		1802
		1803	int set_tmp_dir (DB_ENV *env, const char *dir)
		1804	CODE:
		1805	RETVAL = env->set_tmp_dir (env, dir);
		1806	OUTPUT:
		1807	RETVAL
		1808
		1809	int set_lg_dir (DB_ENV *env, const char *dir)
		1810	CODE:
		1811	RETVAL = env->set_lg_dir (env, dir);
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int set_shm_key (DB_ENV *env, long shm_key)
		1816	CODE:
		1817	RETVAL = env->set_shm_key (env, shm_key);
		1818	OUTPUT:
		1819	RETVAL
		1820
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1821	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1822	CODE:
		1823	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1824	OUTPUT:
		1825	RETVAL
949		1826
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	1827	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1828	CODE:
		1829	RETVAL = env->set_flags (env, flags, onoff);
		1830	OUTPUT:
		1831	RETVAL
951		1832
		1833	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1834	CODE:
		1835	env->set_errfile (env, errfile);
		1836
		1837	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1838	CODE:
		1839	env->set_msgfile (env, msgfile);
		1840
		1841	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		1842	CODE:
		1843	RETVAL = env->set_verbose (env, which, onoff);
		1844	OUTPUT:
		1845	RETVAL
		1846
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	1847	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1848	CODE:
		1849	RETVAL = env->set_encrypt (env, password, flags);
		1850	OUTPUT:
		1851	RETVAL
		1852
		1853	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1854	CODE:
		1855	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1856	OUTPUT:
		1857	RETVAL
		1858
		1859	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1860	CODE:
		1861	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1862	OUTPUT:
		1863	RETVAL
		1864
		1865	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1866	CODE:
		1867	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1872	CODE:
		1873	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1878	CODE:
		1879	RETVAL = env->set_lk_detect (env, detect);
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1884	CODE:
		1885	RETVAL = env->set_lk_max_lockers (env, max);
		1886	OUTPUT:
		1887	RETVAL
		1888
		1889	int set_lk_max_locks (DB_ENV *env, U32 max)
		1890	CODE:
		1891	RETVAL = env->set_lk_max_locks (env, max);
		1892	OUTPUT:
		1893	RETVAL
		1894
		1895	int set_lk_max_objects (DB_ENV *env, U32 max)
		1896	CODE:
		1897	RETVAL = env->set_lk_max_objects (env, max);
		1898	OUTPUT:
		1899	RETVAL
		1900
		1901	int set_lg_bsize (DB_ENV *env, U32 max)
		1902	CODE:
		1903	RETVAL = env->set_lg_bsize (env, max);
		1904	OUTPUT:
		1905	RETVAL
		1906
		1907	int set_lg_max (DB_ENV *env, U32 max)
		1908	CODE:
		1909	RETVAL = env->set_lg_max (env, max);
		1910	OUTPUT:
		1911	RETVAL
		1912
		1913	int mutex_set_max (DB_ENV *env, U32 max)
		1914	CODE:
		1915	RETVAL = env->mutex_set_max (env, max);
		1916	OUTPUT:
		1917	RETVAL
		1918
		1919	int mutex_set_increment (DB_ENV *env, U32 increment)
		1920	CODE:
		1921	RETVAL = env->mutex_set_increment (env, increment);
		1922	OUTPUT:
		1923	RETVAL
		1924
		1925	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		1926	CODE:
		1927	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		1928	OUTPUT:
		1929	RETVAL
		1930
		1931	int mutex_set_align (DB_ENV *env, U32 align)
		1932	CODE:
		1933	RETVAL = env->mutex_set_align (env, align);
		1934	OUTPUT:
		1935	RETVAL
		1936
		1937	DB_TXN *
		1938	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1939	CODE:
		1940	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1941	if (errno)
		1942	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1943	OUTPUT:
		1944	RETVAL
953		1945
954	MODULE = BDB PACKAGE = BDB::Db	1946	MODULE = BDB PACKAGE = BDB::Db
955		1947
		1948	void
		1949	DESTROY (DB_ornuked *db)
		1950	CODE:
		1951	if (db)
		1952	{
		1953	SV *env = (SV *)db->app_private;
		1954	db->close (db, 0);
		1955	SvREFCNT_dec (env);
		1956	}
		1957
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	1958	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1959	CODE:
		1960	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1961	OUTPUT:
		1962	RETVAL
957		1963
958	int set_flags (DB *env, U32 flags, int onoff)	1964	int set_flags (DB *db, U32 flags)
		1965	CODE:
		1966	RETVAL = db->set_flags (db, flags);
		1967	OUTPUT:
		1968	RETVAL
959		1969
960	int set_encrypt (DB *db, const char *password, U32 flags)	1970	int set_encrypt (DB *db, const char *password, U32 flags)
		1971	CODE:
		1972	RETVAL = db->set_encrypt (db, password, flags);
		1973	OUTPUT:
		1974	RETVAL
961		1975
962	int set_lorder (DB *db, int lorder)	1976	int set_lorder (DB *db, int lorder)
963		1977	CODE:
		1978	RETVAL = db->set_lorder (db, lorder);
		1979	OUTPUT:
		1980	RETVAL
964		1981
965	int set_bt_minkey (DB *db, U32 minkey)	1982	int set_bt_minkey (DB *db, U32 minkey)
		1983	CODE:
		1984	RETVAL = db->set_bt_minkey (db, minkey);
		1985	OUTPUT:
		1986	RETVAL
966		1987
967	int set_re_delim(DB *db, int delim);	1988	int set_re_delim (DB *db, int delim)
		1989	CODE:
		1990	RETVAL = db->set_re_delim (db, delim);
		1991	OUTPUT:
		1992	RETVAL
968		1993
969	int set_re_pad (DB *db, int re_pad)	1994	int set_re_pad (DB *db, int re_pad)
		1995	CODE:
		1996	RETVAL = db->set_re_pad (db, re_pad);
		1997	OUTPUT:
		1998	RETVAL
970		1999
971	int set_re_source (DB *db, char *source)	2000	int set_re_source (DB *db, char *source)
		2001	CODE:
		2002	RETVAL = db->set_re_source (db, source);
		2003	OUTPUT:
		2004	RETVAL
972		2005
973	int set_re_len (DB *db, U32 re_len)	2006	int set_re_len (DB *db, U32 re_len)
		2007	CODE:
		2008	RETVAL = db->set_re_len (db, re_len);
		2009	OUTPUT:
		2010	RETVAL
974		2011
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2012	int set_h_ffactor (DB *db, U32 h_ffactor)
		2013	CODE:
		2014	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2015	OUTPUT:
		2016	RETVAL
976		2017
977	int set_h_nelem (DB *db, U32 h_nelem)	2018	int set_h_nelem (DB *db, U32 h_nelem)
		2019	CODE:
		2020	RETVAL = db->set_h_nelem (db, h_nelem);
		2021	OUTPUT:
		2022	RETVAL
978		2023
979	int set_q_extentsize (DB *db, U32 extentsize)	2024	int set_q_extentsize (DB *db, U32 extentsize)
		2025	CODE:
		2026	RETVAL = db->set_q_extentsize (db, extentsize);
		2027	OUTPUT:
		2028	RETVAL
980		2029
		2030	DBC *
		2031	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2032	CODE:
		2033	errno = db->cursor (db, txn, &RETVAL, flags);
		2034	if (errno)
		2035	croak ("DB->cursor: %s", db_strerror (errno));
		2036	OUTPUT:
		2037	RETVAL
981		2038
		2039	DB_SEQUENCE *
		2040	sequence (DB *db, U32 flags = 0)
		2041	CODE:
		2042	{
		2043	errno = db_sequence_create (&RETVAL, db, flags);
		2044	if (errno)
		2045	croak ("db_sequence_create: %s", db_strerror (errno));
		2046	}
		2047	OUTPUT:
		2048	RETVAL
		2049
		2050
		2051	MODULE = BDB PACKAGE = BDB::Txn
		2052
		2053	void
		2054	DESTROY (DB_TXN_ornuked *txn)
		2055	CODE:
		2056	if (txn)
		2057	txn->abort (txn);
		2058
		2059	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2060	CODE:
		2061	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2062	OUTPUT:
		2063	RETVAL
		2064
		2065	int failed (DB_TXN *txn)
		2066	CODE:
		2067	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2068	OUTPUT:
		2069	RETVAL
		2070
		2071
		2072	MODULE = BDB PACKAGE = BDB::Cursor
		2073
		2074	void
		2075	DESTROY (DBC_ornuked *dbc)
		2076	CODE:
		2077	if (dbc)
		2078	dbc->c_close (dbc);
		2079
		2080	#if DB_VERSION_MINOR >= 6
		2081
		2082	int set_priority (DBC *dbc, int priority)
		2083	CODE:
		2084	dbc->set_priority (dbc, priority);
		2085
		2086	#endif
		2087
		2088	MODULE = BDB PACKAGE = BDB::Sequence
		2089
		2090	void
		2091	DESTROY (DB_SEQUENCE_ornuked *seq)
		2092	CODE:
		2093	if (seq)
		2094	seq->close (seq, 0);
		2095
		2096	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2097	CODE:
		2098	RETVAL = seq->initial_value (seq, value);
		2099	OUTPUT:
		2100	RETVAL
		2101
		2102	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2103	CODE:
		2104	RETVAL = seq->set_cachesize (seq, size);
		2105	OUTPUT:
		2106	RETVAL
		2107
		2108	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2109	CODE:
		2110	RETVAL = seq->set_flags (seq, flags);
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2115	CODE:
		2116	RETVAL = seq->set_range (seq, min, max);
		2117	OUTPUT:
		2118	RETVAL
		2119
		2120

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