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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 1.47 by root, Fri Jul 18 22:39:10 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 < 3)
		33	# error you need Berkeley DB 4.3 or a newer 4.x version 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
38	# if __i386 || __x86_64	44	typedef DB_ENV DB_ENV_ornuked;
39	# define WORDACCESS_UNSAFE 0	45	typedef DB_TXN DB_TXN_ornuked;
40	# else	46	typedef DBC DBC_ornuked;
41	# define WORDACCESS_UNSAFE 1	47	typedef DB DB_ornuked;
42	# endif	48
		49	#if DB_VERSION_MINOR >= 3
		50	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		51	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
43	#endif	52	#endif
44		53
45	typedef SV SV8; /* byte-sv, used for argument-checking */	54	typedef SV SV8; /* byte-sv, used for argument-checking */
		55	typedef char *bdb_filename;
46		56
		57	static SV *prepare_cb;
		58
		59	#if DB_VERSION_MINOR >= 6
		60	# define c_close close
		61	# define c_count count
		62	# define c_del del
		63	# define c_dup dup
		64	# define c_get get
		65	# define c_pget pget
		66	# define c_put put
		67	#endif
		68
		69	static char *
		70	get_bdb_filename (SV *sv)
		71	{
		72	if (!SvOK (sv))
		73	return 0;
		74
		75	#if _WIN32
		76	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		77	{
		78	STRLEN len;
		79	char *src = SvPVbyte (sv, len);
		80	SV *t1 = sv_newmortal ();
		81	SV *t2 = sv_newmortal ();
		82
		83	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		84	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		85
		86	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		87	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		88	SvPOK_only (t2);
		89	SvPVX (t2)[len] = 0;
		90	SvCUR_set (t2, len);
		91
		92	return SvPVX (t2);
		93	}
		94	#else
		95	return SvPVbyte_nolen (sv);
		96	#endif
		97	}
		98
		99	static void
		100	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		101	{
		102	printf ("err[%s]\n", msg);
		103	}
		104
		105	static void
		106	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		107	{
		108	printf ("msg[%s]\n", msg);
		109	}
		110
		111	static char *
		112	strdup_ornull (const char *s)
		113	{
		114	return s ? strdup (s) : 0;
		115	}
		116
		117	static void
		118	sv_to_dbt (DBT *dbt, SV *sv)
		119	{
		120	STRLEN len;
		121	char *data = SvPVbyte (sv, len);
		122
		123	dbt->data = malloc (len);
		124	memcpy (dbt->data, data, len);
		125	dbt->size = len;
		126	dbt->flags = DB_DBT_REALLOC;
		127	}
		128
		129	static void
		130	dbt_to_sv (SV *sv, DBT *dbt)
		131	{
		132	if (sv)
		133	{
		134	SvREADONLY_off (sv);
		135	sv_setpvn_mg (sv, dbt->data, dbt->size);
		136	SvREFCNT_dec (sv);
		137	}
		138
		139	free (dbt->data);
		140	}
		141
47	enum	142	enum {
48	{
49	REQ_QUIT,	143	REQ_QUIT,
50	REQ_ENV_OPEN, REQ_ENV_CLOSE,	144	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
51	REQ_DB_OPEN, REQ_DB_CLOSE,	145	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		146	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		147	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		148	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		149	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		150	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
52	};	151	};
53		152
54	typedef struct aio_cb	153	typedef struct bdb_cb
55	{	154	{
56	struct aio_cb *volatile next;	155	struct bdb_cb *volatile next;
57	SV *callback;	156	SV *callback;
58	int type, pri, errorno;	157	int type, pri, result;
59		158
60	DB_ENV *env;	159	DB_ENV *env;
61	DB *db;	160	DB *db;
62	DB_TXN *txn;	161	DB_TXN *txn;
63	DBC *cursor;	162	DBC *dbc;
		163
		164	UV uv1;
64	int int1, int2;	165	int int1, int2;
65	U32 uint1, uint2;	166	U32 uint1, uint2;
66	char *buf1, *buf2;	167	char *buf1, *buf2, *buf3;
67	} aio_cb;	168	SV *sv1, *sv2, *sv3;
68		169
		170	DBT dbt1, dbt2, dbt3;
		171	DB_KEY_RANGE key_range;
		172	#if DB_VERSION_MINOR >= 3
		173	DB_SEQUENCE *seq;
		174	db_seq_t seq_t;
		175	#endif
		176	} bdb_cb;
		177
69	typedef aio_cb *aio_req;	178	typedef bdb_cb *bdb_req;
70		179
71	enum {	180	enum {
72	PRI_MIN = -4,	181	PRI_MIN = -4,
73	PRI_MAX = 4,	182	PRI_MAX = 4,
74		183
…		…
77	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	186	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
78	};	187	};
79		188
80	#define AIO_TICKS ((1000000 + 1023) >> 10)	189	#define AIO_TICKS ((1000000 + 1023) >> 10)
81		190
		191	static SV *on_next_submit;
		192
82	static unsigned int max_poll_time = 0;	193	static unsigned int max_poll_time = 0;
83	static unsigned int max_poll_reqs = 0;	194	static unsigned int max_poll_reqs = 0;
84		195
85	/* calculcate time difference in ~1/AIO_TICKS of a second */	196	/* calculcate time difference in ~1/AIO_TICKS of a second */
86	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	197	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
91		202
92	static int next_pri = DEFAULT_PRI + PRI_BIAS;	203	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		204
94	static unsigned int started, idle, wanted;	205	static unsigned int started, idle, wanted;
95		206
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 */	207	/* worker threads management */
106	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	208	static mutex_t wrklock = X_MUTEX_INIT;
107		209
108	typedef struct worker {	210	typedef struct worker {
109	/* locked by wrklock */	211	/* locked by wrklock */
110	struct worker *prev, *next;	212	struct worker *prev, *next;
111		213
112	pthread_t tid;	214	thread_t tid;
113		215
114	/* locked by reslock, reqlock or wrklock */	216	/* locked by reslock, reqlock or wrklock */
115	aio_req req; /* currently processed request */	217	bdb_req req; /* currently processed request */
116	void *dbuf;	218	void *dbuf;
117	DIR *dirp;	219	DIR *dirp;
118	} worker;	220	} worker;
119		221
120	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	222	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
132	}	234	}
133		235
134	static volatile unsigned int nreqs, nready, npending;	236	static volatile unsigned int nreqs, nready, npending;
135	static volatile unsigned int max_idle = 4;	237	static volatile unsigned int max_idle = 4;
136	static volatile unsigned int max_outstanding = 0xffffffff;	238	static volatile unsigned int max_outstanding = 0xffffffff;
137	static int respipe [2];	239	static int respipe_osf [2], respipe [2] = { -1, -1 };
138		240
139	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	241	static mutex_t reslock = X_MUTEX_INIT;
140	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	242	static mutex_t reqlock = X_MUTEX_INIT;
141	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	243	static cond_t reqwait = X_COND_INIT;
142		244
143	#if WORDACCESS_UNSAFE	245	#if WORDACCESS_UNSAFE
144		246
145	static unsigned int get_nready ()	247	static unsigned int get_nready (void)
146	{	248	{
147	unsigned int retval;	249	unsigned int retval;
148		250
149	LOCK (reqlock);	251	X_LOCK (reqlock);
150	retval = nready;	252	retval = nready;
151	UNLOCK (reqlock);	253	X_UNLOCK (reqlock);
152		254
153	return retval;	255	return retval;
154	}	256	}
155		257
156	static unsigned int get_npending ()	258	static unsigned int get_npending (void)
157	{	259	{
158	unsigned int retval;	260	unsigned int retval;
159		261
160	LOCK (reslock);	262	X_LOCK (reslock);
161	retval = npending;	263	retval = npending;
162	UNLOCK (reslock);	264	X_UNLOCK (reslock);
163		265
164	return retval;	266	return retval;
165	}	267	}
166		268
167	static unsigned int get_nthreads ()	269	static unsigned int get_nthreads (void)
168	{	270	{
169	unsigned int retval;	271	unsigned int retval;
170		272
171	LOCK (wrklock);	273	X_LOCK (wrklock);
172	retval = started;	274	retval = started;
173	UNLOCK (wrklock);	275	X_UNLOCK (wrklock);
174		276
175	return retval;	277	return retval;
176	}	278	}
177		279
178	#else	280	#else
…		…
187	* a somewhat faster data structure might be nice, but	289	* a somewhat faster data structure might be nice, but
188	* with 8 priorities this actually needs <20 insns	290	* with 8 priorities this actually needs <20 insns
189	* per shift, the most expensive operation.	291	* per shift, the most expensive operation.
190	*/	292	*/
191	typedef struct {	293	typedef struct {
192	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	294	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
193	int size;	295	int size;
194	} reqq;	296	} reqq;
195		297
196	static reqq req_queue;	298	static reqq req_queue;
197	static reqq res_queue;	299	static reqq res_queue;
198		300
199	int reqq_push (reqq *q, aio_req req)	301	int reqq_push (reqq *q, bdb_req req)
200	{	302	{
201	int pri = req->pri;	303	int pri = req->pri;
202	req->next = 0;	304	req->next = 0;
203		305
204	if (q->qe[pri])	306	if (q->qe[pri])
…		…
210	q->qe[pri] = q->qs[pri] = req;	312	q->qe[pri] = q->qs[pri] = req;
211		313
212	return q->size++;	314	return q->size++;
213	}	315	}
214		316
215	aio_req reqq_shift (reqq *q)	317	bdb_req reqq_shift (reqq *q)
216	{	318	{
217	int pri;	319	int pri;
218		320
219	if (!q->size)	321	if (!q->size)
220	return 0;	322	return 0;
221		323
222	--q->size;	324	--q->size;
223		325
224	for (pri = NUM_PRI; pri--; )	326	for (pri = NUM_PRI; pri--; )
225	{	327	{
226	aio_req req = q->qs[pri];	328	bdb_req req = q->qs[pri];
227		329
228	if (req)	330	if (req)
229	{	331	{
230	if (!(q->qs[pri] = req->next))	332	if (!(q->qs[pri] = req->next))
231	q->qe[pri] = 0;	333	q->qe[pri] = 0;
…		…
235	}	337	}
236		338
237	abort ();	339	abort ();
238	}	340	}
239		341
240	static int poll_cb ();	342	static int poll_cb (void);
241	static void req_free (aio_req req);	343	static void req_free (bdb_req req);
242	static void req_cancel (aio_req req);	344	static void req_cancel (bdb_req req);
243		345
244	static int req_invoke (aio_req req)	346	static int req_invoke (bdb_req req)
245	{	347	{
246	dSP;	348	dSP;
247		349
248	if (SvOK (req->callback))	350	if (req->callback)
249	{	351	{
250	ENTER;	352	ENTER;
251	SAVETMPS;	353	SAVETMPS;
252	PUSHMARK (SP);	354	PUSHMARK (SP);
253	EXTEND (SP, 1);
254		355
255	switch (req->type)	356	switch (req->type)
256	{	357	{
		358	case REQ_DB_CLOSE:
		359	SvREFCNT_dec (req->sv1);
		360	break;
		361
		362	case REQ_DB_GET:
		363	case REQ_DB_PGET:
		364	dbt_to_sv (req->sv3, &req->dbt3);
		365	break;
		366
		367	case REQ_C_GET:
		368	case REQ_C_PGET:
		369	dbt_to_sv (req->sv1, &req->dbt1);
		370	dbt_to_sv (req->sv2, &req->dbt2);
		371	dbt_to_sv (req->sv3, &req->dbt3);
		372	break;
		373
		374	case REQ_DB_PUT:
		375	case REQ_C_PUT:
		376	dbt_to_sv (0, &req->dbt1);
		377	dbt_to_sv (0, &req->dbt2);
		378	break;
		379
		380	case REQ_DB_KEY_RANGE:
		381	{
		382	AV *av = newAV ();
		383
		384	av_push (av, newSVnv (req->key_range.less));
		385	av_push (av, newSVnv (req->key_range.equal));
		386	av_push (av, newSVnv (req->key_range.greater));
		387
		388	SvREADONLY_off (req->sv1);
		389	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		390	SvREFCNT_dec (req->sv1);
		391	}
		392	break;
		393
		394	#if DB_VERSION_MINOR >= 3
		395	case REQ_SEQ_GET:
		396	SvREADONLY_off (req->sv1);
		397
		398	if (sizeof (IV) > 4)
		399	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		400	else
		401	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		402
		403	SvREFCNT_dec (req->sv1);
		404	break;
		405	#endif
257	}	406	}
		407
		408	errno = req->result;
258		409
259	PUTBACK;	410	PUTBACK;
260	call_sv (req->callback, G_VOID | G_EVAL);	411	call_sv (req->callback, G_VOID | G_EVAL);
261	SPAGAIN;	412	SPAGAIN;
262		413
…		…
265	}	416	}
266		417
267	return !SvTRUE (ERRSV);	418	return !SvTRUE (ERRSV);
268	}	419	}
269		420
270	static void req_free (aio_req req)	421	static void req_free (bdb_req req)
271	{	422	{
		423	SvREFCNT_dec (req->callback);
		424
272	free (req->buf1);	425	free (req->buf1);
273	free (req->buf2);	426	free (req->buf2);
		427	free (req->buf3);
		428
274	Safefree (req);	429	Safefree (req);
275	}	430	}
276		431
277	static void *aio_proc(void *arg);	432	#ifdef USE_SOCKETS_AS_HANDLES
		433	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		434	#else
		435	# define TO_SOCKET(x) (x)
		436	#endif
		437
		438	static void
		439	create_respipe (void)
		440	{
		441	#ifdef _WIN32
		442	int arg; /* argg */
		443	#endif
		444	int old_readfd = respipe [0];
		445
		446	if (respipe [1] >= 0)
		447	respipe_close (TO_SOCKET (respipe [1]));
		448
		449	#ifdef _WIN32
		450	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		451	#else
		452	if (pipe (respipe))
		453	#endif
		454	croak ("unable to initialize result pipe");
		455
		456	if (old_readfd >= 0)
		457	{
		458	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		459	croak ("unable to initialize result pipe(2)");
		460
		461	respipe_close (respipe [0]);
		462	respipe [0] = old_readfd;
		463	}
		464
		465	#ifdef _WIN32
		466	arg = 1;
		467	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		468	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		469	#else
		470	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		471	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		472	#endif
		473	croak ("unable to initialize result pipe(3)");
		474
		475	respipe_osf [0] = TO_SOCKET (respipe [0]);
		476	respipe_osf [1] = TO_SOCKET (respipe [1]);
		477	}
		478
		479	X_THREAD_PROC (bdb_proc);
278		480
279	static void start_thread (void)	481	static void start_thread (void)
280	{	482	{
281	sigset_t fullsigset, oldsigset;
282	pthread_attr_t attr;
283
284	worker *wrk = calloc (1, sizeof (worker));	483	worker *wrk = calloc (1, sizeof (worker));
285		484
286	if (!wrk)	485	if (!wrk)
287	croak ("unable to allocate worker thread data");	486	croak ("unable to allocate worker thread data");
288		487
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);	488	X_LOCK (wrklock);
298	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
299
300	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	489	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
301	{	490	{
302	wrk->prev = &wrk_first;	491	wrk->prev = &wrk_first;
303	wrk->next = wrk_first.next;	492	wrk->next = wrk_first.next;
304	wrk_first.next->prev = wrk;	493	wrk_first.next->prev = wrk;
305	wrk_first.next = wrk;	494	wrk_first.next = wrk;
306	++started;	495	++started;
307	}	496	}
308	else	497	else
309	free (wrk);	498	free (wrk);
310		499
311	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
312	UNLOCK (wrklock);	500	X_UNLOCK (wrklock);
313	}	501	}
314		502
315	static void maybe_start_thread ()	503	static void maybe_start_thread (void)
316	{	504	{
317	if (get_nthreads () >= wanted)	505	if (get_nthreads () >= wanted)
318	return;	506	return;
319		507
320	/* todo: maybe use idle here, but might be less exact */	508	/* todo: maybe use idle here, but might be less exact */
…		…
322	return;	510	return;
323		511
324	start_thread ();	512	start_thread ();
325	}	513	}
326		514
327	static void req_send (aio_req req)	515	static void req_send (bdb_req req)
328	{	516	{
		517	SV *wait_callback = 0;
		518
		519	if (on_next_submit)
		520	{
		521	dSP;
		522	SV *cb = sv_2mortal (on_next_submit);
		523
		524	on_next_submit = 0;
		525
		526	PUSHMARK (SP);
		527	PUTBACK;
		528	call_sv (cb, G_DISCARD | G_EVAL);
		529	}
		530
		531	// synthesize callback if none given
		532	if (!req->callback)
		533	{
		534	int count;
		535
		536	dSP;
		537	PUSHMARK (SP);
		538	PUTBACK;
		539	count = call_sv (prepare_cb, G_ARRAY);
		540	SPAGAIN;
		541
		542	if (count != 2)
		543	croak ("prepare callback must return exactly two values\n");
		544
		545	wait_callback = POPs;
		546	SvREFCNT_dec (req->callback);
		547	req->callback = SvREFCNT_inc (POPs);
		548	}
		549
329	++nreqs;	550	++nreqs;
330		551
331	LOCK (reqlock);	552	X_LOCK (reqlock);
332	++nready;	553	++nready;
333	reqq_push (&req_queue, req);	554	reqq_push (&req_queue, req);
334	pthread_cond_signal (&reqwait);	555	X_COND_SIGNAL (reqwait);
335	UNLOCK (reqlock);	556	X_UNLOCK (reqlock);
336		557
337	maybe_start_thread ();	558	maybe_start_thread ();
		559
		560	if (wait_callback)
		561	{
		562	dSP;
		563	PUSHMARK (SP);
		564	PUTBACK;
		565	call_sv (wait_callback, G_DISCARD);
		566	}
338	}	567	}
339		568
340	static void end_thread (void)	569	static void end_thread (void)
341	{	570	{
342	aio_req req;	571	bdb_req req;
343		572
344	Newz (0, req, 1, aio_cb);	573	Newz (0, req, 1, bdb_cb);
345		574
346	req->type = REQ_QUIT;	575	req->type = REQ_QUIT;
347	req->pri = PRI_MAX + PRI_BIAS;	576	req->pri = PRI_MAX + PRI_BIAS;
348		577
349	LOCK (reqlock);	578	X_LOCK (reqlock);
350	reqq_push (&req_queue, req);	579	reqq_push (&req_queue, req);
351	pthread_cond_signal (&reqwait);	580	X_COND_SIGNAL (reqwait);
352	UNLOCK (reqlock);	581	X_UNLOCK (reqlock);
353		582
354	LOCK (wrklock);	583	X_LOCK (wrklock);
355	--started;	584	--started;
356	UNLOCK (wrklock);	585	X_UNLOCK (wrklock);
357	}	586	}
358		587
359	static void set_max_idle (int nthreads)	588	static void set_max_idle (int nthreads)
360	{	589	{
361	if (WORDACCESS_UNSAFE) LOCK (reqlock);	590	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
362	max_idle = nthreads <= 0 ? 1 : nthreads;	591	max_idle = nthreads <= 0 ? 1 : nthreads;
363	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	592	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
364	}	593	}
365		594
366	static void min_parallel (int nthreads)	595	static void min_parallel (int nthreads)
367	{	596	{
368	if (wanted < nthreads)	597	if (wanted < nthreads)
…		…
376		605
377	while (started > wanted)	606	while (started > wanted)
378	end_thread ();	607	end_thread ();
379	}	608	}
380		609
381	static void poll_wait ()	610	static void poll_wait (void)
382	{	611	{
383	fd_set rfd;	612	fd_set rfd;
384		613
385	while (nreqs)	614	while (nreqs)
386	{	615	{
387	int size;	616	int size;
388	if (WORDACCESS_UNSAFE) LOCK (reslock);	617	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
389	size = res_queue.size;	618	size = res_queue.size;
390	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	619	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
391		620
392	if (size)	621	if (size)
393	return;	622	return;
394		623
395	maybe_start_thread ();	624	maybe_start_thread ();
396		625
397	FD_ZERO(&rfd);	626	FD_ZERO (&rfd);
398	FD_SET(respipe [0], &rfd);	627	FD_SET (respipe [0], &rfd);
399		628
400	select (respipe [0] + 1, &rfd, 0, 0, 0);	629	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
401	}	630	}
402	}	631	}
403		632
404	static int poll_cb ()	633	static int poll_cb (void)
405	{	634	{
406	dSP;	635	dSP;
407	int count = 0;	636	int count = 0;
408	int maxreqs = max_poll_reqs;	637	int maxreqs = max_poll_reqs;
409	int do_croak = 0;	638	int do_croak = 0;
410	struct timeval tv_start, tv_now;	639	struct timeval tv_start, tv_now;
411	aio_req req;	640	bdb_req req;
412		641
413	if (max_poll_time)	642	if (max_poll_time)
414	gettimeofday (&tv_start, 0);	643	gettimeofday (&tv_start, 0);
415		644
416	for (;;)	645	for (;;)
417	{	646	{
418	for (;;)	647	for (;;)
419	{	648	{
420	maybe_start_thread ();	649	maybe_start_thread ();
421		650
422	LOCK (reslock);	651	X_LOCK (reslock);
423	req = reqq_shift (&res_queue);	652	req = reqq_shift (&res_queue);
424		653
425	if (req)	654	if (req)
426	{	655	{
427	--npending;	656	--npending;
428		657
429	if (!res_queue.size)	658	if (!res_queue.size)
430	{	659	{
431	/* read any signals sent by the worker threads */	660	/* read any signals sent by the worker threads */
432	char buf [4];	661	char buf [4];
433	while (read (respipe [0], buf, 4) == 4)	662	while (respipe_read (respipe [0], buf, 4) == 4)
434	;	663	;
435	}	664	}
436	}	665	}
437		666
438	UNLOCK (reslock);	667	X_UNLOCK (reslock);
439		668
440	if (!req)	669	if (!req)
441	break;	670	break;
442		671
443	--nreqs;	672	--nreqs;
…		…
473	}	702	}
474		703
475	return count;	704	return count;
476	}	705	}
477		706
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	/*****************************************************************************/	707	/*****************************************************************************/
491		708
492	static void *aio_proc (void *thr_arg)	709	X_THREAD_PROC (bdb_proc)
493	{	710	{
494	aio_req req;	711	bdb_req req;
495	struct timespec ts;	712	struct timespec ts;
496	worker *self = (worker *)thr_arg;	713	worker *self = (worker *)thr_arg;
497		714
498	/* try to distribute timeouts somewhat evenly */	715	/* try to distribute timeouts somewhat evenly */
499	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	716	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
500	* (1000000000UL / 1024UL);
501		717
502	for (;;)	718	for (;;)
503	{	719	{
504	ts.tv_sec = time (0) + IDLE_TIMEOUT;	720	ts.tv_sec = time (0) + IDLE_TIMEOUT;
505		721
506	LOCK (reqlock);	722	X_LOCK (reqlock);
507		723
508	for (;;)	724	for (;;)
509	{	725	{
510	self->req = req = reqq_shift (&req_queue);	726	self->req = req = reqq_shift (&req_queue);
511		727
512	if (req)	728	if (req)
513	break;	729	break;
514		730
515	++idle;	731	++idle;
516		732
517	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	733	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
518	== ETIMEDOUT)	734	== ETIMEDOUT)
519	{	735	{
520	if (idle > max_idle)	736	if (idle > max_idle)
521	{	737	{
522	--idle;	738	--idle;
523	UNLOCK (reqlock);	739	X_UNLOCK (reqlock);
524	LOCK (wrklock);	740	X_LOCK (wrklock);
525	--started;	741	--started;
526	UNLOCK (wrklock);	742	X_UNLOCK (wrklock);
527	goto quit;	743	goto quit;
528	}	744	}
529		745
530	/* we are allowed to idle, so do so without any timeout */	746	/* we are allowed to idle, so do so without any timeout */
531	pthread_cond_wait (&reqwait, &reqlock);	747	X_COND_WAIT (reqwait, reqlock);
532	ts.tv_sec = time (0) + IDLE_TIMEOUT;	748	ts.tv_sec = time (0) + IDLE_TIMEOUT;
533	}	749	}
534		750
535	--idle;	751	--idle;
536	}	752	}
537		753
538	--nready;	754	--nready;
539		755
540	UNLOCK (reqlock);	756	X_UNLOCK (reqlock);
541		757
542	errno = 0; /* strictly unnecessary */
543
544	switch (req->type)	758	switch (req->type)
545	{	759	{
546	case REQ_QUIT:	760	case REQ_QUIT:
		761	req->result = ENOSYS;
547	goto quit;	762	goto quit;
548		763
		764	case REQ_ENV_OPEN:
		765	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		766	break;
		767
		768	case REQ_ENV_CLOSE:
		769	req->result = req->env->close (req->env, req->uint1);
		770	break;
		771
		772	case REQ_ENV_TXN_CHECKPOINT:
		773	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		774	break;
		775
		776	case REQ_ENV_LOCK_DETECT:
		777	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		778	break;
		779
		780	case REQ_ENV_MEMP_SYNC:
		781	req->result = req->env->memp_sync (req->env, 0);
		782	break;
		783
		784	case REQ_ENV_MEMP_TRICKLE:
		785	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		786	break;
		787
		788	case REQ_ENV_DBREMOVE:
		789	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		790	break;
		791
		792	case REQ_ENV_DBRENAME:
		793	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		794	break;
		795
		796	case REQ_DB_OPEN:
		797	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		798	break;
		799
		800	case REQ_DB_CLOSE:
		801	req->result = req->db->close (req->db, req->uint1);
		802	break;
		803
		804	#if DB_VERSION_MINOR >= 4
		805	case REQ_DB_COMPACT:
		806	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		807	break;
		808	#endif
		809
		810	case REQ_DB_SYNC:
		811	req->result = req->db->sync (req->db, req->uint1);
		812	break;
		813
		814	case REQ_DB_UPGRADE:
		815	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		816	break;
		817
		818	case REQ_DB_PUT:
		819	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		820	break;
		821
		822	#if DB_VERSION_MINOR >= 6
		823	case REQ_DB_EXISTS:
		824	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		825	break;
		826	#endif
		827	case REQ_DB_GET:
		828	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		829	break;
		830
		831	case REQ_DB_PGET:
		832	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		833	break;
		834
		835	case REQ_DB_DEL:
		836	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		837	break;
		838
		839	case REQ_DB_KEY_RANGE:
		840	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		841	break;
		842
		843	case REQ_TXN_COMMIT:
		844	req->result = req->txn->commit (req->txn, req->uint1);
		845	break;
		846
		847	case REQ_TXN_ABORT:
		848	req->result = req->txn->abort (req->txn);
		849	break;
		850
		851	case REQ_TXN_FINISH:
		852	if (req->txn->flags & TXN_DEADLOCK)
		853	{
		854	req->result = req->txn->abort (req->txn);
		855	if (!req->result)
		856	req->result = DB_LOCK_DEADLOCK;
		857	}
		858	else
		859	req->result = req->txn->commit (req->txn, req->uint1);
		860	break;
		861
		862	case REQ_C_CLOSE:
		863	req->result = req->dbc->c_close (req->dbc);
		864	break;
		865
		866	case REQ_C_COUNT:
		867	{
		868	db_recno_t recno;
		869	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		870	req->uv1 = recno;
		871	}
		872	break;
		873
		874	case REQ_C_PUT:
		875	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		876	break;
		877
		878	case REQ_C_GET:
		879	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		880	break;
		881
		882	case REQ_C_PGET:
		883	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		884	break;
		885
		886	case REQ_C_DEL:
		887	req->result = req->dbc->c_del (req->dbc, req->uint1);
		888	break;
		889
		890	#if DB_VERSION_MINOR >= 3
		891	case REQ_SEQ_OPEN:
		892	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		893	break;
		894
		895	case REQ_SEQ_CLOSE:
		896	req->result = req->seq->close (req->seq, req->uint1);
		897	break;
		898
		899	case REQ_SEQ_GET:
		900	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		901	break;
		902
		903	case REQ_SEQ_REMOVE:
		904	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		905	break;
		906	#endif
		907
549	default:	908	default:
550	//req->result = ENOSYS;	909	req->result = ENOSYS;
551	break;	910	break;
552	}	911	}
553		912
554	//req->errorno = errno;	913	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		914	req->txn->flags |= TXN_DEADLOCK;
555		915
556	LOCK (reslock);	916	X_LOCK (reslock);
557		917
558	++npending;	918	++npending;
559		919
560	if (!reqq_push (&res_queue, req))	920	if (!reqq_push (&res_queue, req))
561	/* write a dummy byte to the pipe so fh becomes ready */	921	/* write a dummy byte to the pipe so fh becomes ready */
562	write (respipe [1], &respipe, 1);	922	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
563		923
564	self->req = 0;	924	self->req = 0;
565	worker_clear (self);	925	worker_clear (self);
566		926
567	UNLOCK (reslock);	927	X_UNLOCK (reslock);
568	}	928	}
569		929
570	quit:	930	quit:
571	LOCK (wrklock);	931	X_LOCK (wrklock);
572	worker_free (self);	932	worker_free (self);
573	UNLOCK (wrklock);	933	X_UNLOCK (wrklock);
574		934
575	return 0;	935	return 0;
576	}	936	}
577		937
578	/*****************************************************************************/	938	/*****************************************************************************/
579		939
580	static void atfork_prepare (void)	940	static void atfork_prepare (void)
581	{	941	{
582	LOCK (wrklock);	942	X_LOCK (wrklock);
583	LOCK (reqlock);	943	X_LOCK (reqlock);
584	LOCK (reslock);	944	X_LOCK (reslock);
585	}	945	}
586		946
587	static void atfork_parent (void)	947	static void atfork_parent (void)
588	{	948	{
589	UNLOCK (reslock);	949	X_UNLOCK (reslock);
590	UNLOCK (reqlock);	950	X_UNLOCK (reqlock);
591	UNLOCK (wrklock);	951	X_UNLOCK (wrklock);
592	}	952	}
593		953
594	static void atfork_child (void)	954	static void atfork_child (void)
595	{	955	{
596	aio_req prv;	956	bdb_req prv;
597		957
598	while (prv = reqq_shift (&req_queue))	958	while (prv = reqq_shift (&req_queue))
599	req_free (prv);	959	req_free (prv);
600		960
601	while (prv = reqq_shift (&res_queue))	961	while (prv = reqq_shift (&res_queue))
…		…
616	idle = 0;	976	idle = 0;
617	nreqs = 0;	977	nreqs = 0;
618	nready = 0;	978	nready = 0;
619	npending = 0;	979	npending = 0;
620		980
621	close (respipe [0]);
622	close (respipe [1]);
623	create_pipe ();	981	create_respipe ();
624		982
625	atfork_parent ();	983	atfork_parent ();
626	}	984	}
627		985
628	#define dREQ(reqtype) \	986	#define dREQ(reqtype) \
629	aio_req req; \	987	bdb_req req; \
630	int req_pri = next_pri; \	988	int req_pri = next_pri; \
631	next_pri = DEFAULT_PRI + PRI_BIAS; \	989	next_pri = DEFAULT_PRI + PRI_BIAS; \
632	\	990	\
633	if (SvOK (callback) && !SvROK (callback)) \	991	if (callback && SvOK (callback)) \
634	croak ("callback must be undef or of reference type"); \	992	croak ("callback has illegal type or extra arguments"); \
635	\	993	\
636	Newz (0, req, 1, aio_cb); \	994	Newz (0, req, 1, bdb_cb); \
637	if (!req) \	995	if (!req) \
638	croak ("out of memory during aio_req allocation"); \	996	croak ("out of memory during bdb_req allocation"); \
639	\	997	\
640	req->callback = newSVsv (callback); \	998	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
641	req->type = (reqtype); \	999	req->type = (reqtype); \
642	req->pri = req_pri	1000	req->pri = req_pri
643		1001
644	#define REQ_SEND \	1002	#define REQ_SEND \
645	req_send (req)	1003	req_send (req)
646		1004
647	#define SvPTR(var, arg, type, class) \	1005	#define SvPTR(var, arg, type, class, nullok) \
648	if (!SvOK (arg)) \	1006	if (!SvOK (arg)) \
		1007	{ \
		1008	if (nullok != 1) \
		1009	croak (# var " must be a " # class " object, not undef"); \
		1010	\
649	(var) = 0; \	1011	(var) = 0; \
		1012	} \
650	else if (sv_derived_from ((arg), # class)) \	1013	else if (sv_derived_from ((arg), # class)) \
651	{ \	1014	{ \
652	IV tmp = SvIV ((SV*) SvRV (arg)); \	1015	IV tmp = SvIV ((SV*) SvRV (arg)); \
653	(var) = INT2PTR (type, tmp); \	1016	(var) = INT2PTR (type, tmp); \
		1017	if (!var && nullok != 2) \
		1018	croak (# var " is not a valid " # class " object anymore"); \
654	} \	1019	} \
655	else \	1020	else \
656	Perl_croak (# var " is not of type " # type)	1021	croak (# var " is not of type " # class);
657		1022
		1023	static void
		1024	ptr_nuke (SV *sv)
		1025	{
		1026	assert (SvROK (sv));
		1027	sv_setiv (SvRV (sv), 0);
		1028	}
		1029
		1030	static int
		1031	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1032	{
		1033	if (*mg->mg_ptr == '!') // should always be the case
		1034	if (-30999 <= errno && errno <= -30800)
		1035	{
		1036	sv_setnv (sv, (NV)errno);
		1037	sv_setpv (sv, db_strerror (errno));
		1038	SvNOK_on (sv); /* what a wonderful hack! */
		1039	// ^^^ copied from perl sources
		1040	return 0;
		1041	}
		1042
		1043	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1044	}
		1045
		1046	static MGVTBL vtbl_errno;
		1047
		1048	// this wonderful hack :( patches perl's $! variable to support our errno values
		1049	static void
		1050	patch_errno (void)
		1051	{
		1052	SV *sv;
		1053	MAGIC *mg;
		1054
		1055	if (!(sv = get_sv ("!", 1)))
		1056	return;
		1057
		1058	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1059	return;
		1060
		1061	if (mg->mg_virtual != &PL_vtbl_sv)
		1062	return;
		1063
		1064	vtbl_errno = PL_vtbl_sv;
		1065	vtbl_errno.svt_get = errno_get;
		1066	mg->mg_virtual = &vtbl_errno;
		1067	}
		1068
		1069	#if __GNUC__ >= 4
		1070	# define noinline __attribute__ ((noinline))
		1071	#else
		1072	# define noinline
		1073	#endif
		1074
		1075	static noinline SV *
		1076	pop_callback (I32 *ritems, SV *sv)
		1077	{
		1078	if (SvROK (sv))
		1079	{
		1080	HV *st;
		1081	GV *gvp;
		1082	CV *cv;
		1083	const char *name;
		1084
		1085	/* forgive me */
		1086	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1087	&& (st = SvSTASH (SvRV (sv)))
		1088	&& (name = HvNAME_get (st))
		1089	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1090	return 0;
		1091
		1092	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1093	{
		1094	--*ritems;
		1095	return (SV *)cv;
		1096	}
		1097	}
		1098
		1099	return 0;
		1100	}
		1101
		1102	/* stupid windoes defined CALLBACK as well */
		1103	#undef CALLBACK
		1104	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1105
658	MODULE = BDB PACKAGE = BDB	1106	MODULE = BDB PACKAGE = BDB
659		1107
660	PROTOTYPES: ENABLE	1108	PROTOTYPES: ENABLE
661		1109
662	BOOT:	1110	BOOT:
…		…
677	const_iv (INIT_TXN)	1125	const_iv (INIT_TXN)
678	const_iv (RECOVER)	1126	const_iv (RECOVER)
679	const_iv (INIT_TXN)	1127	const_iv (INIT_TXN)
680	const_iv (RECOVER_FATAL)	1128	const_iv (RECOVER_FATAL)
681	const_iv (CREATE)	1129	const_iv (CREATE)
		1130	const_iv (RDONLY)
682	const_iv (USE_ENVIRON)	1131	const_iv (USE_ENVIRON)
683	const_iv (USE_ENVIRON_ROOT)	1132	const_iv (USE_ENVIRON_ROOT)
684	const_iv (LOCKDOWN)	1133	const_iv (LOCKDOWN)
685	const_iv (PRIVATE)	1134	const_iv (PRIVATE)
686	const_iv (REGISTER)
687	const_iv (SYSTEM_MEM)	1135	const_iv (SYSTEM_MEM)
688	const_iv (AUTO_COMMIT)	1136	const_iv (AUTO_COMMIT)
689	const_iv (CDB_ALLDB)	1137	const_iv (CDB_ALLDB)
690	const_iv (DIRECT_DB)	1138	const_iv (DIRECT_DB)
691	const_iv (DIRECT_LOG)
692	const_iv (DSYNC_DB)
693	const_iv (DSYNC_LOG)
694	const_iv (LOG_AUTOREMOVE)
695	const_iv (LOG_INMEMORY)
696	const_iv (NOLOCKING)	1139	const_iv (NOLOCKING)
697	const_iv (MULTIVERSION)
698	const_iv (NOMMAP)	1140	const_iv (NOMMAP)
699	const_iv (NOPANIC)	1141	const_iv (NOPANIC)
700	const_iv (OVERWRITE)	1142	const_iv (OVERWRITE)
701	const_iv (PANIC_ENVIRONMENT)	1143	const_iv (PANIC_ENVIRONMENT)
702	const_iv (REGION_INIT)	1144	const_iv (REGION_INIT)
703	const_iv (TIME_NOTGRANTED)	1145	const_iv (TIME_NOTGRANTED)
704	const_iv (TXN_NOSYNC)	1146	const_iv (TXN_NOSYNC)
705	const_iv (TXN_SNAPSHOT)	1147	const_iv (TXN_NOT_DURABLE)
706	const_iv (TXN_WRITE_NOSYNC)	1148	const_iv (TXN_WRITE_NOSYNC)
		1149	const_iv (WRITECURSOR)
707	const_iv (YIELDCPU)	1150	const_iv (YIELDCPU)
708	const_iv (ENCRYPT_AES)	1151	const_iv (ENCRYPT_AES)
709	const_iv (XA_CREATE)	1152	const_iv (XA_CREATE)
710	const_iv (BTREE)	1153	const_iv (BTREE)
711	const_iv (HASH)	1154	const_iv (HASH)
712	const_iv (QUEUE)	1155	const_iv (QUEUE)
713	const_iv (RECNO)	1156	const_iv (RECNO)
714	const_iv (UNKNOWN)	1157	const_iv (UNKNOWN)
715	const_iv (EXCL)	1158	const_iv (EXCL)
716	const_iv (READ_UNCOMMITTED)
717	const_iv (TRUNCATE)	1159	const_iv (TRUNCATE)
718	const_iv (NOSYNC)	1160	const_iv (NOSYNC)
719	const_iv (CHKSUM)	1161	const_iv (CHKSUM)
720	const_iv (ENCRYPT)	1162	const_iv (ENCRYPT)
721	const_iv (TXN_NOT_DURABLE)
722	const_iv (DUP)	1163	const_iv (DUP)
723	const_iv (DUPSORT)	1164	const_iv (DUPSORT)
724	const_iv (RECNUM)	1165	const_iv (RECNUM)
725	const_iv (RENUMBER)	1166	const_iv (RENUMBER)
726	const_iv (REVSPLITOFF)	1167	const_iv (REVSPLITOFF)
727	const_iv (INORDER)
728	const_iv (CONSUME)	1168	const_iv (CONSUME)
729	const_iv (CONSUME_WAIT)	1169	const_iv (CONSUME_WAIT)
		1170	const_iv (GET_BOTH)
		1171	const_iv (GET_BOTH_RANGE)
		1172	//const_iv (SET_RECNO)
		1173	//const_iv (MULTIPLE)
730	const_iv (SNAPSHOT)	1174	const_iv (SNAPSHOT)
731	const_iv (JOIN_ITEM)	1175	const_iv (JOIN_ITEM)
		1176	const_iv (JOIN_NOSORT)
732	const_iv (RMW)	1177	const_iv (RMW)
733		1178
734	const_iv (NOTFOUND)	1179	const_iv (NOTFOUND)
735	const_iv (KEYEMPTY)	1180	const_iv (KEYEMPTY)
736	const_iv (LOCK_DEADLOCK)	1181	const_iv (LOCK_DEADLOCK)
737	const_iv (LOCK_NOTGRANTED)	1182	const_iv (LOCK_NOTGRANTED)
738	const_iv (RUNRECOVERY)	1183	const_iv (RUNRECOVERY)
		1184	const_iv (OLD_VERSION)
		1185	const_iv (REP_HANDLE_DEAD)
		1186	const_iv (SECONDARY_BAD)
		1187
		1188	const_iv (APPEND)
		1189	const_iv (NODUPDATA)
		1190	const_iv (NOOVERWRITE)
		1191
		1192	const_iv (TXN_NOWAIT)
		1193	const_iv (TXN_SYNC)
		1194
		1195	const_iv (SET_LOCK_TIMEOUT)
		1196	const_iv (SET_TXN_TIMEOUT)
		1197
		1198	const_iv (FIRST)
		1199	const_iv (NEXT)
		1200	const_iv (NEXT_DUP)
		1201	const_iv (NEXT_NODUP)
		1202	const_iv (PREV)
		1203	const_iv (PREV_NODUP)
		1204	const_iv (SET)
		1205	const_iv (SET_RANGE)
		1206	const_iv (LAST)
		1207	const_iv (BEFORE)
		1208	const_iv (AFTER)
		1209	const_iv (CURRENT)
		1210	const_iv (KEYFIRST)
		1211	const_iv (KEYLAST)
		1212	const_iv (NODUPDATA)
		1213
		1214	const_iv (FORCE)
		1215
		1216	const_iv (LOCK_DEFAULT)
		1217	const_iv (LOCK_EXPIRE)
		1218	const_iv (LOCK_MAXLOCKS)
		1219	const_iv (LOCK_MINLOCKS)
		1220	const_iv (LOCK_MINWRITE)
		1221	const_iv (LOCK_OLDEST)
		1222	const_iv (LOCK_RANDOM)
		1223	const_iv (LOCK_YOUNGEST)
		1224
		1225	const_iv (DONOTINDEX)
		1226	const_iv (KEYEMPTY )
		1227	const_iv (KEYEXIST )
		1228	const_iv (LOCK_DEADLOCK)
		1229	const_iv (LOCK_NOTGRANTED)
		1230	const_iv (NOSERVER)
		1231	const_iv (NOSERVER_HOME)
		1232	const_iv (NOSERVER_ID)
		1233	const_iv (NOTFOUND)
		1234	const_iv (PAGE_NOTFOUND)
		1235	const_iv (REP_DUPMASTER)
		1236	const_iv (REP_HANDLE_DEAD)
		1237	const_iv (REP_HOLDELECTION)
		1238	const_iv (REP_ISPERM)
		1239	const_iv (REP_NEWMASTER)
		1240	const_iv (REP_NEWSITE)
		1241	const_iv (REP_NOTPERM)
		1242	const_iv (REP_UNAVAIL)
		1243	const_iv (RUNRECOVERY)
		1244	const_iv (SECONDARY_BAD)
		1245	const_iv (VERIFY_BAD)
		1246
		1247	const_iv (VERB_DEADLOCK)
		1248	const_iv (VERB_RECOVERY)
		1249	const_iv (VERB_REPLICATION)
		1250	const_iv (VERB_WAITSFOR)
		1251
		1252	const_iv (VERSION_MAJOR)
		1253	const_iv (VERSION_MINOR)
		1254	const_iv (VERSION_PATCH)
		1255	#if DB_VERSION_MINOR >= 3
		1256	const_iv (INORDER)
		1257	const_iv (LOCK_MAXWRITE)
		1258	const_iv (SEQ_DEC)
		1259	const_iv (SEQ_INC)
		1260	const_iv (SEQ_WRAP)
		1261	const_iv (BUFFER_SMALL)
		1262	const_iv (LOG_BUFFER_FULL)
		1263	const_iv (VERSION_MISMATCH)
		1264	#endif
		1265	#if DB_VERSION_MINOR >= 4
		1266	const_iv (REGISTER)
		1267	const_iv (DSYNC_DB)
		1268	const_iv (READ_COMMITTED)
		1269	const_iv (READ_UNCOMMITTED)
		1270	const_iv (REP_IGNORE)
		1271	const_iv (REP_LOCKOUT)
		1272	const_iv (REP_JOIN_FAILURE)
		1273	const_iv (FREE_SPACE)
		1274	const_iv (FREELIST_ONLY)
		1275	const_iv (VERB_REGISTER)
		1276	#endif
		1277	#if DB_VERSION_MINOR >= 5
		1278	const_iv (MULTIVERSION)
		1279	const_iv (TXN_SNAPSHOT)
		1280	#endif
		1281	#if DB_VERSION_MINOR >= 6
		1282	const_iv (PREV_DUP)
		1283	const_iv (PRIORITY_UNCHANGED)
		1284	const_iv (PRIORITY_VERY_LOW)
		1285	const_iv (PRIORITY_LOW)
		1286	const_iv (PRIORITY_DEFAULT)
		1287	const_iv (PRIORITY_HIGH)
		1288	const_iv (PRIORITY_VERY_HIGH)
		1289	#endif
		1290	#if DB_VERSION_MINOR >= 7
		1291	const_iv (LOG_DIRECT)
		1292	const_iv (LOG_DSYNC)
		1293	const_iv (LOG_AUTO_REMOVE)
		1294	const_iv (LOG_IN_MEMORY)
		1295	const_iv (LOG_ZERO)
		1296	#else
		1297	const_iv (DIRECT_LOG)
		1298	const_iv (LOG_AUTOREMOVE)
		1299	# if DB_VERSION_MINOR >= 3
		1300	const_iv (DSYNC_LOG)
		1301	const_iv (LOG_INMEMORY)
		1302	# endif
		1303	#endif
739	};	1304	};
740		1305
741	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1306	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
742	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1307	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
743		1308
744	create_pipe ();	1309	{
		1310	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1311	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1312
		1313	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1314	}
		1315
		1316	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1317
		1318	create_respipe ();
		1319
745	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1320	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1321	patch_errno ();
746	}	1322	}
747		1323
748	void	1324	void
749	max_poll_reqs (int nreqs)	1325	max_poll_reqs (int nreqs)
750	PROTOTYPE: $	1326	PROTOTYPE: $
…		…
779	max_outstanding = maxreqs;	1355	max_outstanding = maxreqs;
780	OUTPUT:	1356	OUTPUT:
781	RETVAL	1357	RETVAL
782		1358
783	int	1359	int
784	bdbreq_pri (int pri = 0)	1360	dbreq_pri (int pri = 0)
785	PROTOTYPE: ;$	1361	PROTOTYPE: ;$
786	CODE:	1362	CODE:
787	RETVAL = next_pri - PRI_BIAS;	1363	RETVAL = next_pri - PRI_BIAS;
788	if (items > 0)	1364	if (items > 0)
789	{	1365	{
…		…
793	}	1369	}
794	OUTPUT:	1370	OUTPUT:
795	RETVAL	1371	RETVAL
796		1372
797	void	1373	void
798	bdbreq_nice (int nice = 0)	1374	dbreq_nice (int nice = 0)
799	CODE:	1375	CODE:
800	nice = next_pri - nice;	1376	nice = next_pri - nice;
801	if (nice < PRI_MIN) nice = PRI_MIN;	1377	if (nice < PRI_MIN) nice = PRI_MIN;
802	if (nice > PRI_MAX) nice = PRI_MAX;	1378	if (nice > PRI_MAX) nice = PRI_MAX;
803	next_pri = nice + PRI_BIAS;	1379	next_pri = nice + PRI_BIAS;
…		…
811	poll_wait ();	1387	poll_wait ();
812	poll_cb ();	1388	poll_cb ();
813	}	1389	}
814		1390
815	int	1391	int
816	poll()	1392	poll ()
817	PROTOTYPE:	1393	PROTOTYPE:
818	CODE:	1394	CODE:
819	poll_wait ();	1395	poll_wait ();
820	RETVAL = poll_cb ();	1396	RETVAL = poll_cb ();
821	OUTPUT:	1397	OUTPUT:
822	RETVAL	1398	RETVAL
823		1399
824	int	1400	int
825	poll_fileno()	1401	poll_fileno ()
826	PROTOTYPE:	1402	PROTOTYPE:
827	CODE:	1403	CODE:
828	RETVAL = respipe [0];	1404	RETVAL = respipe [0];
829	OUTPUT:	1405	OUTPUT:
830	RETVAL	1406	RETVAL
831		1407
832	int	1408	int
833	poll_cb(...)	1409	poll_cb (...)
834	PROTOTYPE:	1410	PROTOTYPE:
835	CODE:	1411	CODE:
836	RETVAL = poll_cb ();	1412	RETVAL = poll_cb ();
837	OUTPUT:	1413	OUTPUT:
838	RETVAL	1414	RETVAL
839		1415
840	void	1416	void
841	poll_wait()	1417	poll_wait ()
842	PROTOTYPE:	1418	PROTOTYPE:
843	CODE:	1419	CODE:
844	poll_wait ();	1420	poll_wait ();
845		1421
846	int	1422	int
847	nreqs()	1423	nreqs ()
848	PROTOTYPE:	1424	PROTOTYPE:
849	CODE:	1425	CODE:
850	RETVAL = nreqs;	1426	RETVAL = nreqs;
851	OUTPUT:	1427	OUTPUT:
852	RETVAL	1428	RETVAL
853		1429
854	int	1430	int
855	nready()	1431	nready ()
856	PROTOTYPE:	1432	PROTOTYPE:
857	CODE:	1433	CODE:
858	RETVAL = get_nready ();	1434	RETVAL = get_nready ();
859	OUTPUT:	1435	OUTPUT:
860	RETVAL	1436	RETVAL
861		1437
862	int	1438	int
863	npending()	1439	npending ()
864	PROTOTYPE:	1440	PROTOTYPE:
865	CODE:	1441	CODE:
866	RETVAL = get_npending ();	1442	RETVAL = get_npending ();
867	OUTPUT:	1443	OUTPUT:
868	RETVAL	1444	RETVAL
869		1445
870	int	1446	int
871	nthreads()	1447	nthreads ()
872	PROTOTYPE:	1448	PROTOTYPE:
873	CODE:	1449	CODE:
874	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1450	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
875	RETVAL = started;	1451	RETVAL = started;
876	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1452	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
877	OUTPUT:	1453	OUTPUT:
878	RETVAL	1454	RETVAL
879		1455
		1456	void
		1457	set_sync_prepare (SV *cb)
		1458	PROTOTYPE: &
		1459	CODE:
		1460	SvREFCNT_dec (prepare_cb);
		1461	prepare_cb = newSVsv (cb);
		1462
		1463	char *
		1464	strerror (int errorno = errno)
		1465	PROTOTYPE: ;$
		1466	CODE:
		1467	RETVAL = db_strerror (errorno);
		1468	OUTPUT:
		1469	RETVAL
		1470
		1471	void _on_next_submit (SV *cb)
		1472	CODE:
		1473	SvREFCNT_dec (on_next_submit);
		1474	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1475
880	DB_ENV *	1476	DB_ENV *
881	bdb_env_create (U32 env_flags = 0)	1477	db_env_create (U32 env_flags = 0)
882	CODE:	1478	CODE:
883	{	1479	{
884	int err = db_env_create (&RETVAL, env_flags);	1480	errno = db_env_create (&RETVAL, env_flags);
885	if (err)	1481	if (errno)
886	croak ("db_env_create: %s", db_strerror (err));	1482	croak ("db_env_create: %s", db_strerror (errno));
887	}
888		1483
		1484	if (0)
		1485	{
		1486	RETVAL->set_errcall (RETVAL, debug_errcall);
		1487	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1488	}
		1489	}
		1490	OUTPUT:
		1491	RETVAL
		1492
889	void	1493	void
890	bdb_env_open (DB_ENV *env, char *db_home, U32 open_flags, int mode, SV *callback = 0)	1494	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1495	PREINIT:
		1496	CALLBACK
891	CODE:	1497	CODE:
892	{	1498	{
893	dREQ (REQ_ENV_OPEN);	1499	dREQ (REQ_ENV_OPEN);
894	req->env = env;	1500	req->env = env;
895	req->uint1 = open_flags;	1501	req->uint1 = open_flags | DB_THREAD;
896	req->int1 = mode;	1502	req->int1 = mode;
897	req->buf1 = strdup (db_home);	1503	req->buf1 = strdup_ornull (db_home);
898	REQ_SEND;	1504	REQ_SEND;
899	}	1505	}
900		1506
901	void	1507	void
902	bdb_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)	1508	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1509	PREINIT:
		1510	CALLBACK
903	CODE:	1511	CODE:
904	{	1512	{
905	dREQ (REQ_ENV_CLOSE);	1513	dREQ (REQ_ENV_CLOSE);
906	req->env = env;	1514	req->env = env;
907	req->uint1 = flags;	1515	req->uint1 = flags;
908	REQ_SEND;	1516	REQ_SEND;
		1517	ptr_nuke (ST (0));
		1518	}
		1519
		1520	void
		1521	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1522	PREINIT:
		1523	CALLBACK
		1524	CODE:
		1525	{
		1526	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1527	req->env = env;
		1528	req->uint1 = kbyte;
		1529	req->int1 = min;
		1530	req->uint2 = flags;
		1531	REQ_SEND;
		1532	}
		1533
		1534	void
		1535	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1536	PREINIT:
		1537	CALLBACK
		1538	CODE:
		1539	{
		1540	dREQ (REQ_ENV_LOCK_DETECT);
		1541	req->env = env;
		1542	req->uint1 = flags;
		1543	req->uint2 = atype;
		1544	/* req->int2 = 0; dummy */
		1545	REQ_SEND;
		1546	}
		1547
		1548	void
		1549	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1550	PREINIT:
		1551	CALLBACK
		1552	CODE:
		1553	{
		1554	dREQ (REQ_ENV_MEMP_SYNC);
		1555	req->env = env;
		1556	REQ_SEND;
		1557	}
		1558
		1559	void
		1560	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1561	PREINIT:
		1562	CALLBACK
		1563	CODE:
		1564	{
		1565	dREQ (REQ_ENV_MEMP_TRICKLE);
		1566	req->env = env;
		1567	req->int1 = percent;
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
		1572	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1573	PREINIT:
		1574	CALLBACK
		1575	CODE:
		1576	{
		1577	dREQ (REQ_ENV_DBREMOVE);
		1578	req->env = env;
		1579	req->buf1 = strdup_ornull (file);
		1580	req->buf2 = strdup_ornull (database);
		1581	req->uint1 = flags;
		1582	REQ_SEND;
		1583	}
		1584
		1585	void
		1586	db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
		1587	PREINIT:
		1588	CALLBACK
		1589	CODE:
		1590	{
		1591	dREQ (REQ_ENV_DBRENAME);
		1592	req->env = env;
		1593	req->buf1 = strdup_ornull (file);
		1594	req->buf2 = strdup_ornull (database);
		1595	req->buf3 = strdup_ornull (newname);
		1596	req->uint1 = flags;
		1597	REQ_SEND;
909	}	1598	}
910		1599
911	DB *	1600	DB *
912	bdb_db_create (DB_ENV *env = 0, U32 flags = 0)	1601	db_create (DB_ENV *env = 0, U32 flags = 0)
913	CODE:	1602	CODE:
914	{	1603	{
915	int err = db_create (&RETVAL, env, flags);	1604	errno = db_create (&RETVAL, env, flags);
916	if (err)	1605	if (errno)
917	croak ("db_env_create: %s", db_strerror (err));	1606	croak ("db_create: %s", db_strerror (errno));
918	}
919		1607
		1608	if (RETVAL)
		1609	RETVAL->app_private = (void *)newSVsv (ST (0));
		1610	}
		1611	OUTPUT:
		1612	RETVAL
		1613
920	void	1614	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)	1615	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1616	PREINIT:
		1617	CALLBACK
922	CODE:	1618	CODE:
923	{	1619	{
924	dREQ (REQ_DB_OPEN);	1620	dREQ (REQ_DB_OPEN);
925	req->db = db;	1621	req->db = db;
926	req->txn = txnid;	1622	req->txn = txnid;
927	req->buf1 = strdup (file);	1623	req->buf1 = strdup_ornull (file);
928	req->buf2 = strdup (database);	1624	req->buf2 = strdup_ornull (database);
929	req->int1 = type;	1625	req->int1 = type;
930	req->uint1 = flags;	1626	req->uint1 = flags | DB_THREAD;
931	req->int2 = mode;	1627	req->int2 = mode;
932	REQ_SEND;	1628	REQ_SEND;
933	}	1629	}
934		1630
935	void	1631	void
936	bdb_db_close (DB *db, U32 flags = 0, SV *callback = 0)	1632	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1633	PREINIT:
		1634	CALLBACK
937	CODE:	1635	CODE:
938	{	1636	{
939	dREQ (REQ_DB_CLOSE);	1637	dREQ (REQ_DB_CLOSE);
940	req->db = db;	1638	req->db = db;
941	req->uint1 = flags;	1639	req->uint1 = flags;
		1640	req->sv1 = (SV *)db->app_private;
942	REQ_SEND;	1641	REQ_SEND;
		1642	ptr_nuke (ST (0));
943	}	1643	}
		1644
		1645	#if DB_VERSION_MINOR >= 4
		1646
		1647	void
		1648	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 = 0)
		1649	PREINIT:
		1650	CALLBACK
		1651	CODE:
		1652	{
		1653	dREQ (REQ_DB_COMPACT);
		1654	req->db = db;
		1655	req->txn = txn;
		1656	sv_to_dbt (&req->dbt1, start);
		1657	sv_to_dbt (&req->dbt2, stop);
		1658	req->uint1 = flags;
		1659	REQ_SEND;
		1660	}
		1661
		1662	#endif
		1663
		1664	void
		1665	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1666	PREINIT:
		1667	CALLBACK
		1668	CODE:
		1669	{
		1670	dREQ (REQ_DB_SYNC);
		1671	req->db = db;
		1672	req->uint1 = flags;
		1673	REQ_SEND;
		1674	}
		1675
		1676	void
		1677	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1678	PREINIT:
		1679	CALLBACK
		1680	CODE:
		1681	{
		1682	dREQ (REQ_DB_SYNC);
		1683	req->db = db;
		1684	req->buf1 = strdup (file);
		1685	req->uint1 = flags;
		1686	REQ_SEND;
		1687	}
		1688
		1689	void
		1690	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1691	PREINIT:
		1692	CALLBACK
		1693	CODE:
		1694	{
		1695	dREQ (REQ_DB_KEY_RANGE);
		1696	req->db = db;
		1697	req->txn = txn;
		1698	sv_to_dbt (&req->dbt1, key);
		1699	req->uint1 = flags;
		1700	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1701	REQ_SEND;
		1702	}
		1703
		1704	void
		1705	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1706	PREINIT:
		1707	CALLBACK
		1708	CODE:
		1709	{
		1710	dREQ (REQ_DB_PUT);
		1711	req->db = db;
		1712	req->txn = txn;
		1713	sv_to_dbt (&req->dbt1, key);
		1714	sv_to_dbt (&req->dbt2, data);
		1715	req->uint1 = flags;
		1716	REQ_SEND;
		1717	}
		1718
		1719	#if DB_VERSION_MINOR >= 6
		1720
		1721	void
		1722	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1723	PREINIT:
		1724	CALLBACK
		1725	CODE:
		1726	{
		1727	dREQ (REQ_DB_EXISTS);
		1728	req->db = db;
		1729	req->txn = txn;
		1730	req->uint1 = flags;
		1731	sv_to_dbt (&req->dbt1, key);
		1732	REQ_SEND;
		1733	}
		1734
		1735	#endif
		1736
		1737	void
		1738	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1739	PREINIT:
		1740	CALLBACK
		1741	CODE:
		1742	if (SvREADONLY (data))
		1743	croak ("can't modify read-only data scalar in db_get");
		1744	{
		1745	dREQ (REQ_DB_GET);
		1746	req->db = db;
		1747	req->txn = txn;
		1748	req->uint1 = flags;
		1749	sv_to_dbt (&req->dbt1, key);
		1750	req->dbt3.flags = DB_DBT_MALLOC;
		1751	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1752	REQ_SEND;
		1753	}
		1754
		1755	void
		1756	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1757	PREINIT:
		1758	CALLBACK
		1759	CODE:
		1760	if (SvREADONLY (data))
		1761	croak ("can't modify read-only data scalar in db_pget");
		1762	{
		1763	dREQ (REQ_DB_PGET);
		1764	req->db = db;
		1765	req->txn = txn;
		1766	req->uint1 = flags;
		1767	sv_to_dbt (&req->dbt1, key);
		1768	sv_to_dbt (&req->dbt2, pkey);
		1769	req->dbt3.flags = DB_DBT_MALLOC;
		1770	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1771	REQ_SEND;
		1772	}
		1773
		1774	void
		1775	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1776	PREINIT:
		1777	CALLBACK
		1778	CODE:
		1779	{
		1780	dREQ (REQ_DB_DEL);
		1781	req->db = db;
		1782	req->txn = txn;
		1783	req->uint1 = flags;
		1784	sv_to_dbt (&req->dbt1, key);
		1785	REQ_SEND;
		1786	}
		1787
		1788	void
		1789	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1790	PREINIT:
		1791	CALLBACK
		1792	CODE:
		1793	{
		1794	dREQ (REQ_TXN_COMMIT);
		1795	req->txn = txn;
		1796	req->uint1 = flags;
		1797	REQ_SEND;
		1798	ptr_nuke (ST (0));
		1799	}
		1800
		1801	void
		1802	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1803	PREINIT:
		1804	CALLBACK
		1805	CODE:
		1806	{
		1807	dREQ (REQ_TXN_ABORT);
		1808	req->txn = txn;
		1809	REQ_SEND;
		1810	ptr_nuke (ST (0));
		1811	}
		1812
		1813	void
		1814	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1815	PREINIT:
		1816	CALLBACK
		1817	CODE:
		1818	{
		1819	dREQ (REQ_TXN_FINISH);
		1820	req->txn = txn;
		1821	req->uint1 = flags;
		1822	REQ_SEND;
		1823	ptr_nuke (ST (0));
		1824	}
		1825
		1826	void
		1827	db_c_close (DBC *dbc, SV *callback = 0)
		1828	PREINIT:
		1829	CALLBACK
		1830	CODE:
		1831	{
		1832	dREQ (REQ_C_CLOSE);
		1833	req->dbc = dbc;
		1834	REQ_SEND;
		1835	ptr_nuke (ST (0));
		1836	}
		1837
		1838	void
		1839	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1840	PREINIT:
		1841	CALLBACK
		1842	CODE:
		1843	{
		1844	dREQ (REQ_C_COUNT);
		1845	req->dbc = dbc;
		1846	req->sv1 = SvREFCNT_inc (count);
		1847	REQ_SEND;
		1848	}
		1849
		1850	void
		1851	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1852	PREINIT:
		1853	CALLBACK
		1854	CODE:
		1855	{
		1856	dREQ (REQ_C_PUT);
		1857	req->dbc = dbc;
		1858	sv_to_dbt (&req->dbt1, key);
		1859	sv_to_dbt (&req->dbt2, data);
		1860	req->uint1 = flags;
		1861	REQ_SEND;
		1862	}
		1863
		1864	void
		1865	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1866	PREINIT:
		1867	CALLBACK
		1868	CODE:
		1869	{
		1870	dREQ (REQ_C_GET);
		1871	req->dbc = dbc;
		1872	req->uint1 = flags;
		1873	if ((flags & DB_SET) == DB_SET
		1874	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1875	sv_to_dbt (&req->dbt1, key);
		1876	else
		1877	req->dbt1.flags = DB_DBT_MALLOC;
		1878
		1879	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1880
		1881	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1882	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1883	sv_to_dbt (&req->dbt3, data);
		1884	else
		1885	req->dbt3.flags = DB_DBT_MALLOC;
		1886
		1887	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1888	REQ_SEND;
		1889	}
		1890
		1891	void
		1892	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1893	PREINIT:
		1894	CALLBACK
		1895	CODE:
		1896	{
		1897	dREQ (REQ_C_PGET);
		1898	req->dbc = dbc;
		1899	req->uint1 = flags;
		1900	if ((flags & DB_SET) == DB_SET
		1901	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1902	sv_to_dbt (&req->dbt1, key);
		1903	else
		1904	req->dbt1.flags = DB_DBT_MALLOC;
		1905
		1906	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1907
		1908	req->dbt2.flags = DB_DBT_MALLOC;
		1909	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1910
		1911	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1912	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1913	sv_to_dbt (&req->dbt3, data);
		1914	else
		1915	req->dbt3.flags = DB_DBT_MALLOC;
		1916
		1917	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1918	REQ_SEND;
		1919	}
		1920
		1921	void
		1922	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1923	PREINIT:
		1924	CALLBACK
		1925	CODE:
		1926	{
		1927	dREQ (REQ_C_DEL);
		1928	req->dbc = dbc;
		1929	req->uint1 = flags;
		1930	REQ_SEND;
		1931	}
		1932
		1933
		1934	#if DB_VERSION_MINOR >= 3
		1935
		1936	void
		1937	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1938	PREINIT:
		1939	CALLBACK
		1940	CODE:
		1941	{
		1942	dREQ (REQ_SEQ_OPEN);
		1943	req->seq = seq;
		1944	req->txn = txnid;
		1945	req->uint1 = flags | DB_THREAD;
		1946	sv_to_dbt (&req->dbt1, key);
		1947	REQ_SEND;
		1948	}
		1949
		1950	void
		1951	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1952	PREINIT:
		1953	CALLBACK
		1954	CODE:
		1955	{
		1956	dREQ (REQ_SEQ_CLOSE);
		1957	req->seq = seq;
		1958	req->uint1 = flags;
		1959	REQ_SEND;
		1960	ptr_nuke (ST (0));
		1961	}
		1962
		1963	void
		1964	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1965	PREINIT:
		1966	CALLBACK
		1967	CODE:
		1968	{
		1969	dREQ (REQ_SEQ_GET);
		1970	req->seq = seq;
		1971	req->txn = txnid;
		1972	req->int1 = delta;
		1973	req->uint1 = flags;
		1974	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1975	REQ_SEND;
		1976	}
		1977
		1978	void
		1979	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1980	PREINIT:
		1981	CALLBACK
		1982	CODE:
		1983	{
		1984	dREQ (REQ_SEQ_REMOVE);
		1985	req->seq = seq;
		1986	req->txn = txnid;
		1987	req->uint1 = flags;
		1988	REQ_SEND;
		1989	}
		1990
		1991	#endif
944		1992
945		1993
946	MODULE = BDB PACKAGE = BDB::Env	1994	MODULE = BDB PACKAGE = BDB::Env
947		1995
		1996	void
		1997	DESTROY (DB_ENV_ornuked *env)
		1998	CODE:
		1999	if (env)
		2000	env->close (env, 0);
		2001
		2002	int set_data_dir (DB_ENV *env, const char *dir)
		2003	CODE:
		2004	RETVAL = env->set_data_dir (env, dir);
		2005	OUTPUT:
		2006	RETVAL
		2007
		2008	int set_tmp_dir (DB_ENV *env, const char *dir)
		2009	CODE:
		2010	RETVAL = env->set_tmp_dir (env, dir);
		2011	OUTPUT:
		2012	RETVAL
		2013
		2014	int set_lg_dir (DB_ENV *env, const char *dir)
		2015	CODE:
		2016	RETVAL = env->set_lg_dir (env, dir);
		2017	OUTPUT:
		2018	RETVAL
		2019
		2020	int set_shm_key (DB_ENV *env, long shm_key)
		2021	CODE:
		2022	RETVAL = env->set_shm_key (env, shm_key);
		2023	OUTPUT:
		2024	RETVAL
		2025
948	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	2026	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2027	CODE:
		2028	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2029	OUTPUT:
		2030	RETVAL
949		2031
950	int set_flags (DB_ENV *env, U32 flags, int onoff)	2032	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2033	CODE:
		2034	RETVAL = env->set_flags (env, flags, onoff);
		2035	OUTPUT:
		2036	RETVAL
951		2037
		2038	#if DB_VERSION_MINOR >= 7
		2039
		2040	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2041	CODE:
		2042	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2043	OUTPUT:
		2044	RETVAL
		2045
		2046	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2047	CODE:
		2048	RETVAL = env->log_set_config (env, flags, onoff);
		2049	OUTPUT:
		2050	RETVAL
		2051
		2052	#endif
		2053
		2054
		2055	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2056	CODE:
		2057	env->set_errfile (env, errfile);
		2058
		2059	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2060	CODE:
		2061	env->set_msgfile (env, msgfile);
		2062
		2063	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2064	CODE:
		2065	RETVAL = env->set_verbose (env, which, onoff);
		2066	OUTPUT:
		2067	RETVAL
		2068
952	int set_encrypt (DB_ENV *env, const char *password, U32 flags)	2069	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2070	CODE:
		2071	RETVAL = env->set_encrypt (env, password, flags);
		2072	OUTPUT:
		2073	RETVAL
		2074
		2075	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2076	CODE:
		2077	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2078	OUTPUT:
		2079	RETVAL
		2080
		2081	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2082	CODE:
		2083	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2084	OUTPUT:
		2085	RETVAL
		2086
		2087	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2088	CODE:
		2089	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2090	OUTPUT:
		2091	RETVAL
		2092
		2093	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2094	CODE:
		2095	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2096	OUTPUT:
		2097	RETVAL
		2098
		2099	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2100	CODE:
		2101	RETVAL = env->set_lk_detect (env, detect);
		2102	OUTPUT:
		2103	RETVAL
		2104
		2105	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2106	CODE:
		2107	RETVAL = env->set_lk_max_lockers (env, max);
		2108	OUTPUT:
		2109	RETVAL
		2110
		2111	int set_lk_max_locks (DB_ENV *env, U32 max)
		2112	CODE:
		2113	RETVAL = env->set_lk_max_locks (env, max);
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int set_lk_max_objects (DB_ENV *env, U32 max)
		2118	CODE:
		2119	RETVAL = env->set_lk_max_objects (env, max);
		2120	OUTPUT:
		2121	RETVAL
		2122
		2123	int set_lg_bsize (DB_ENV *env, U32 max)
		2124	CODE:
		2125	RETVAL = env->set_lg_bsize (env, max);
		2126	OUTPUT:
		2127	RETVAL
		2128
		2129	int set_lg_max (DB_ENV *env, U32 max)
		2130	CODE:
		2131	RETVAL = env->set_lg_max (env, max);
		2132	OUTPUT:
		2133	RETVAL
		2134
		2135	#if DB_VERSION_MINOR >= 4
		2136
		2137	int mutex_set_max (DB_ENV *env, U32 max)
		2138	CODE:
		2139	RETVAL = env->mutex_set_max (env, max);
		2140	OUTPUT:
		2141	RETVAL
		2142
		2143	int mutex_set_increment (DB_ENV *env, U32 increment)
		2144	CODE:
		2145	RETVAL = env->mutex_set_increment (env, increment);
		2146	OUTPUT:
		2147	RETVAL
		2148
		2149	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2150	CODE:
		2151	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2152	OUTPUT:
		2153	RETVAL
		2154
		2155	int mutex_set_align (DB_ENV *env, U32 align)
		2156	CODE:
		2157	RETVAL = env->mutex_set_align (env, align);
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	#endif
		2162
		2163	DB_TXN *
		2164	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2165	CODE:
		2166	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2167	if (errno)
		2168	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2169	OUTPUT:
		2170	RETVAL
		2171
		2172	#if DB_VERSION_MINOR >= 5
		2173
		2174	DB_TXN *
		2175	cdsgroup_begin (DB_ENV *env)
		2176	CODE:
		2177	errno = env->cdsgroup_begin (env, &RETVAL);
		2178	if (errno)
		2179	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2180	OUTPUT:
		2181	RETVAL
		2182
		2183	#endif
953		2184
954	MODULE = BDB PACKAGE = BDB::Db	2185	MODULE = BDB PACKAGE = BDB::Db
955		2186
		2187	void
		2188	DESTROY (DB_ornuked *db)
		2189	CODE:
		2190	if (db)
		2191	{
		2192	SV *env = (SV *)db->app_private;
		2193	db->close (db, 0);
		2194	SvREFCNT_dec (env);
		2195	}
		2196
956	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)	2197	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2198	CODE:
		2199	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2200	OUTPUT:
		2201	RETVAL
957		2202
958	int set_flags (DB *env, U32 flags, int onoff)	2203	int set_flags (DB *db, U32 flags)
		2204	CODE:
		2205	RETVAL = db->set_flags (db, flags);
		2206	OUTPUT:
		2207	RETVAL
959		2208
960	int set_encrypt (DB *db, const char *password, U32 flags)	2209	int set_encrypt (DB *db, const char *password, U32 flags)
		2210	CODE:
		2211	RETVAL = db->set_encrypt (db, password, flags);
		2212	OUTPUT:
		2213	RETVAL
961		2214
962	int set_lorder (DB *db, int lorder)	2215	int set_lorder (DB *db, int lorder)
963		2216	CODE:
		2217	RETVAL = db->set_lorder (db, lorder);
		2218	OUTPUT:
		2219	RETVAL
964		2220
965	int set_bt_minkey (DB *db, U32 minkey)	2221	int set_bt_minkey (DB *db, U32 minkey)
		2222	CODE:
		2223	RETVAL = db->set_bt_minkey (db, minkey);
		2224	OUTPUT:
		2225	RETVAL
966		2226
967	int set_re_delim(DB *db, int delim);	2227	int set_re_delim (DB *db, int delim)
		2228	CODE:
		2229	RETVAL = db->set_re_delim (db, delim);
		2230	OUTPUT:
		2231	RETVAL
968		2232
969	int set_re_pad (DB *db, int re_pad)	2233	int set_re_pad (DB *db, int re_pad)
		2234	CODE:
		2235	RETVAL = db->set_re_pad (db, re_pad);
		2236	OUTPUT:
		2237	RETVAL
970		2238
971	int set_re_source (DB *db, char *source)	2239	int set_re_source (DB *db, char *source)
		2240	CODE:
		2241	RETVAL = db->set_re_source (db, source);
		2242	OUTPUT:
		2243	RETVAL
972		2244
973	int set_re_len (DB *db, U32 re_len)	2245	int set_re_len (DB *db, U32 re_len)
		2246	CODE:
		2247	RETVAL = db->set_re_len (db, re_len);
		2248	OUTPUT:
		2249	RETVAL
974		2250
975	int set_h_ffactor (DB *db, U32 h_ffactor)	2251	int set_h_ffactor (DB *db, U32 h_ffactor)
		2252	CODE:
		2253	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2254	OUTPUT:
		2255	RETVAL
976		2256
977	int set_h_nelem (DB *db, U32 h_nelem)	2257	int set_h_nelem (DB *db, U32 h_nelem)
		2258	CODE:
		2259	RETVAL = db->set_h_nelem (db, h_nelem);
		2260	OUTPUT:
		2261	RETVAL
978		2262
979	int set_q_extentsize (DB *db, U32 extentsize)	2263	int set_q_extentsize (DB *db, U32 extentsize)
		2264	CODE:
		2265	RETVAL = db->set_q_extentsize (db, extentsize);
		2266	OUTPUT:
		2267	RETVAL
980		2268
		2269	DBC *
		2270	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2271	CODE:
		2272	errno = db->cursor (db, txn, &RETVAL, flags);
		2273	if (errno)
		2274	croak ("DB->cursor: %s", db_strerror (errno));
		2275	OUTPUT:
		2276	RETVAL
981		2277
		2278	#if DB_VERSION_MINOR >= 3
		2279
		2280	DB_SEQUENCE *
		2281	sequence (DB *db, U32 flags = 0)
		2282	CODE:
		2283	{
		2284	errno = db_sequence_create (&RETVAL, db, flags);
		2285	if (errno)
		2286	croak ("db_sequence_create: %s", db_strerror (errno));
		2287	}
		2288	OUTPUT:
		2289	RETVAL
		2290
		2291	#endif
		2292
		2293
		2294	MODULE = BDB PACKAGE = BDB::Txn
		2295
		2296	void
		2297	DESTROY (DB_TXN_ornuked *txn)
		2298	CODE:
		2299	if (txn)
		2300	txn->abort (txn);
		2301
		2302	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2303	CODE:
		2304	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2305	OUTPUT:
		2306	RETVAL
		2307
		2308	int failed (DB_TXN *txn)
		2309	CODE:
		2310	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2311	OUTPUT:
		2312	RETVAL
		2313
		2314
		2315	MODULE = BDB PACKAGE = BDB::Cursor
		2316
		2317	void
		2318	DESTROY (DBC_ornuked *dbc)
		2319	CODE:
		2320	if (dbc)
		2321	dbc->c_close (dbc);
		2322
		2323	#if DB_VERSION_MINOR >= 6
		2324
		2325	int set_priority (DBC *dbc, int priority)
		2326	CODE:
		2327	dbc->set_priority (dbc, priority);
		2328
		2329	#endif
		2330
		2331	#if DB_VERSION_MINOR >= 3
		2332
		2333	MODULE = BDB PACKAGE = BDB::Sequence
		2334
		2335	void
		2336	DESTROY (DB_SEQUENCE_ornuked *seq)
		2337	CODE:
		2338	if (seq)
		2339	seq->close (seq, 0);
		2340
		2341	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2342	CODE:
		2343	RETVAL = seq->initial_value (seq, value);
		2344	OUTPUT:
		2345	RETVAL
		2346
		2347	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2348	CODE:
		2349	RETVAL = seq->set_cachesize (seq, size);
		2350	OUTPUT:
		2351	RETVAL
		2352
		2353	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2354	CODE:
		2355	RETVAL = seq->set_flags (seq, flags);
		2356	OUTPUT:
		2357	RETVAL
		2358
		2359	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2360	CODE:
		2361	RETVAL = seq->set_range (seq, min, max);
		2362	OUTPUT:
		2363	RETVAL
		2364
		2365	#endif
		2366
		2367

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