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Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.42 by root, Wed Jul 9 12:39:56 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	21	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	22	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	23	#include <fcntl.h>
29	#include <signal.h>	24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
30	#include <sched.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
31		35
32	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
34		38
35	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
36	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
37	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
38	*/	42	typedef DB DB_ornull;
39	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
40	# if __i386 || __x86_64	44
41	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
42	# else	46	typedef DB_TXN DB_TXN_ornuked;
43	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
44	# endif	48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
		50
		51	typedef SV SV8; /* byte-sv, used for argument-checking */
		52	typedef char *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
45	#endif	64	#endif
46		65
47	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;
48		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
49	enum {	139	enum {
50	REQ_QUIT,	140	REQ_QUIT,
		141	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		142	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		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,
51	};	148	};
52		149
53	#define AIO_CB \	150	typedef struct bdb_cb
		151	{
54	struct aio_cb *volatile next; \	152	struct bdb_cb *volatile next;
55	SV *callback; \	153	SV *callback;
56	int type, pri	154	int type, pri, result;
57		155
58	typedef struct aio_cb	156	DB_ENV *env;
59	{	157	DB *db;
60	AIO_CB;	158	DB_TXN *txn;
61	} aio_cb;	159	DBC *dbc;
62		160
		161	UV uv1;
		162	int int1, int2;
		163	U32 uint1, uint2;
		164	char *buf1, *buf2, *buf3;
		165	SV *sv1, *sv2, *sv3;
		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
63	typedef aio_cb *aio_req;	173	typedef bdb_cb *bdb_req;
64		174
65	enum {	175	enum {
66	PRI_MIN = -4,	176	PRI_MIN = -4,
67	PRI_MAX = 4,	177	PRI_MAX = 4,
68		178
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	181	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	182	};
73		183
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	184	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		185
		186	static SV *on_next_submit;
		187
76	static unsigned int max_poll_time = 0;	188	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	189	static unsigned int max_poll_reqs = 0;
78		190
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	191	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	192	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		197
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	198	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		199
88	static unsigned int started, idle, wanted;	200	static unsigned int started, idle, wanted;
89		201
90	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
91	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
92	#else
93	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
94	#endif
95
96	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
97	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
98
99	/* worker threads management */	202	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	203	static mutex_t wrklock = X_MUTEX_INIT;
101		204
102	typedef struct worker {	205	typedef struct worker {
103	/* locked by wrklock */	206	/* locked by wrklock */
104	struct worker *prev, *next;	207	struct worker *prev, *next;
105		208
106	pthread_t tid;	209	thread_t tid;
107		210
108	/* locked by reslock, reqlock or wrklock */	211	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	212	bdb_req req; /* currently processed request */
110	void *dbuf;	213	void *dbuf;
111	DIR *dirp;	214	DIR *dirp;
112	} worker;	215	} worker;
113		216
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	217	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	229	}
127		230
128	static volatile unsigned int nreqs, nready, npending;	231	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	232	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	233	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	234	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		235
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	236	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	237	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	238	static cond_t reqwait = X_COND_INIT;
136		239
137	#if WORDACCESS_UNSAFE	240	#if WORDACCESS_UNSAFE
138		241
139	static unsigned int get_nready ()	242	static unsigned int get_nready (void)
140	{	243	{
141	unsigned int retval;	244	unsigned int retval;
142		245
143	LOCK (reqlock);	246	X_LOCK (reqlock);
144	retval = nready;	247	retval = nready;
145	UNLOCK (reqlock);	248	X_UNLOCK (reqlock);
146		249
147	return retval;	250	return retval;
148	}	251	}
149		252
150	static unsigned int get_npending ()	253	static unsigned int get_npending (void)
151	{	254	{
152	unsigned int retval;	255	unsigned int retval;
153		256
154	LOCK (reslock);	257	X_LOCK (reslock);
155	retval = npending;	258	retval = npending;
156	UNLOCK (reslock);	259	X_UNLOCK (reslock);
157		260
158	return retval;	261	return retval;
159	}	262	}
160		263
161	static unsigned int get_nthreads ()	264	static unsigned int get_nthreads (void)
162	{	265	{
163	unsigned int retval;	266	unsigned int retval;
164		267
165	LOCK (wrklock);	268	X_LOCK (wrklock);
166	retval = started;	269	retval = started;
167	UNLOCK (wrklock);	270	X_UNLOCK (wrklock);
168		271
169	return retval;	272	return retval;
170	}	273	}
171		274
172	#else	275	#else
…		…
181	* a somewhat faster data structure might be nice, but	284	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	285	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	286	* per shift, the most expensive operation.
184	*/	287	*/
185	typedef struct {	288	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	289	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	290	int size;
188	} reqq;	291	} reqq;
189		292
190	static reqq req_queue;	293	static reqq req_queue;
191	static reqq res_queue;	294	static reqq res_queue;
192		295
193	int reqq_push (reqq *q, aio_req req)	296	int reqq_push (reqq *q, bdb_req req)
194	{	297	{
195	int pri = req->pri;	298	int pri = req->pri;
196	req->next = 0;	299	req->next = 0;
197		300
198	if (q->qe[pri])	301	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	307	q->qe[pri] = q->qs[pri] = req;
205		308
206	return q->size++;	309	return q->size++;
207	}	310	}
208		311
209	aio_req reqq_shift (reqq *q)	312	bdb_req reqq_shift (reqq *q)
210	{	313	{
211	int pri;	314	int pri;
212		315
213	if (!q->size)	316	if (!q->size)
214	return 0;	317	return 0;
215		318
216	--q->size;	319	--q->size;
217		320
218	for (pri = NUM_PRI; pri--; )	321	for (pri = NUM_PRI; pri--; )
219	{	322	{
220	aio_req req = q->qs[pri];	323	bdb_req req = q->qs[pri];
221		324
222	if (req)	325	if (req)
223	{	326	{
224	if (!(q->qs[pri] = req->next))	327	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	328	q->qe[pri] = 0;
…		…
229	}	332	}
230		333
231	abort ();	334	abort ();
232	}	335	}
233		336
234	static int poll_cb ();	337	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	338	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);	339	static void req_cancel (bdb_req req);
238		340
239	static int req_invoke (aio_req req)	341	static int req_invoke (bdb_req req)
240	{	342	{
241	dSP;	343	dSP;
242		344
243	if (SvOK (req->callback))	345	if (req->callback)
244	{	346	{
245	ENTER;	347	ENTER;
246	SAVETMPS;	348	SAVETMPS;
247	PUSHMARK (SP);	349	PUSHMARK (SP);
248	EXTEND (SP, 1);
249		350
250	switch (req->type)	351	switch (req->type)
251	{	352	{
		353	case REQ_DB_CLOSE:
		354	SvREFCNT_dec (req->sv1);
		355	break;
		356
		357	case REQ_DB_GET:
		358	case REQ_DB_PGET:
		359	dbt_to_sv (req->sv3, &req->dbt3);
		360	break;
		361
		362	case REQ_C_GET:
		363	case REQ_C_PGET:
		364	dbt_to_sv (req->sv1, &req->dbt1);
		365	dbt_to_sv (req->sv2, &req->dbt2);
		366	dbt_to_sv (req->sv3, &req->dbt3);
		367	break;
		368
		369	case REQ_DB_PUT:
		370	case REQ_C_PUT:
		371	dbt_to_sv (0, &req->dbt1);
		372	dbt_to_sv (0, &req->dbt2);
		373	break;
		374
		375	case REQ_DB_KEY_RANGE:
		376	{
		377	AV *av = newAV ();
		378
		379	av_push (av, newSVnv (req->key_range.less));
		380	av_push (av, newSVnv (req->key_range.equal));
		381	av_push (av, newSVnv (req->key_range.greater));
		382
		383	SvREADONLY_off (req->sv1);
		384	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		385	SvREFCNT_dec (req->sv1);
		386	}
		387	break;
		388
		389	case REQ_SEQ_GET:
		390	SvREADONLY_off (req->sv1);
		391
		392	if (sizeof (IV) > 4)
		393	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		394	else
		395	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		396
		397	SvREFCNT_dec (req->sv1);
		398	break;
252	}	399	}
		400
		401	errno = req->result;
253		402
254	PUTBACK;	403	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	404	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	405	SPAGAIN;
257		406
…		…
260	}	409	}
261		410
262	return !SvTRUE (ERRSV);	411	return !SvTRUE (ERRSV);
263	}	412	}
264		413
265	static void req_free (aio_req req)	414	static void req_free (bdb_req req)
266	{	415	{
		416	free (req->buf1);
		417	free (req->buf2);
		418	free (req->buf3);
267	Safefree (req);	419	Safefree (req);
268	}	420	}
269		421
270	static void *aio_proc(void *arg);	422	#ifdef USE_SOCKETS_AS_HANDLES
		423	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		424	#else
		425	# define TO_SOCKET(x) (x)
		426	#endif
		427
		428	static void
		429	create_respipe (void)
		430	{
		431	#ifdef _WIN32
		432	int arg; /* argg */
		433	#endif
		434	int old_readfd = respipe [0];
		435
		436	if (respipe [1] >= 0)
		437	respipe_close (TO_SOCKET (respipe [1]));
		438
		439	#ifdef _WIN32
		440	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		441	#else
		442	if (pipe (respipe))
		443	#endif
		444	croak ("unable to initialize result pipe");
		445
		446	if (old_readfd >= 0)
		447	{
		448	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		449	croak ("unable to initialize result pipe(2)");
		450
		451	respipe_close (respipe [0]);
		452	respipe [0] = old_readfd;
		453	}
		454
		455	#ifdef _WIN32
		456	arg = 1;
		457	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		458	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		459	#else
		460	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		461	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		462	#endif
		463	croak ("unable to initialize result pipe(3)");
		464
		465	respipe_osf [0] = TO_SOCKET (respipe [0]);
		466	respipe_osf [1] = TO_SOCKET (respipe [1]);
		467	}
		468
		469	X_THREAD_PROC (bdb_proc);
271		470
272	static void start_thread (void)	471	static void start_thread (void)
273	{	472	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	473	worker *wrk = calloc (1, sizeof (worker));
278		474
279	if (!wrk)	475	if (!wrk)
280	croak ("unable to allocate worker thread data");	476	croak ("unable to allocate worker thread data");
281		477
282	pthread_attr_init (&attr);
283	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
284	#ifdef PTHREAD_SCOPE_PROCESS
285	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
286	#endif
287
288	sigfillset (&fullsigset);
289
290	LOCK (wrklock);	478	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	479	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	480	{
295	wrk->prev = &wrk_first;	481	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	482	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	483	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	484	wrk_first.next = wrk;
299	++started;	485	++started;
300	}	486	}
301	else	487	else
302	free (wrk);	488	free (wrk);
303		489
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	490	X_UNLOCK (wrklock);
306	}	491	}
307		492
308	static void maybe_start_thread ()	493	static void maybe_start_thread (void)
309	{	494	{
310	if (get_nthreads () >= wanted)	495	if (get_nthreads () >= wanted)
311	return;	496	return;
312		497
313	/* todo: maybe use idle here, but might be less exact */	498	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	500	return;
316		501
317	start_thread ();	502	start_thread ();
318	}	503	}
319		504
320	static void req_send (aio_req req)	505	static void req_send (bdb_req req)
321	{	506	{
		507	SV *wait_callback = 0;
		508
		509	if (on_next_submit)
		510	{
		511	dSP;
		512	SV *cb = sv_2mortal (on_next_submit);
		513
		514	on_next_submit = 0;
		515
		516	PUSHMARK (SP);
		517	PUTBACK;
		518	call_sv (cb, G_DISCARD | G_EVAL);
		519	}
		520
		521	// synthesize callback if none given
		522	if (!req->callback)
		523	{
		524	int count;
		525
		526	dSP;
		527	PUSHMARK (SP);
		528	PUTBACK;
		529	count = call_sv (prepare_cb, G_ARRAY);
		530	SPAGAIN;
		531
		532	if (count != 2)
		533	croak ("prepare callback must return exactly two values\n");
		534
		535	wait_callback = POPs;
		536	SvREFCNT_dec (req->callback);
		537	req->callback = SvREFCNT_inc (POPs);
		538	}
		539
322	++nreqs;	540	++nreqs;
323		541
324	LOCK (reqlock);	542	X_LOCK (reqlock);
325	++nready;	543	++nready;
326	reqq_push (&req_queue, req);	544	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	545	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	546	X_UNLOCK (reqlock);
329		547
330	maybe_start_thread ();	548	maybe_start_thread ();
		549
		550	if (wait_callback)
		551	{
		552	dSP;
		553	PUSHMARK (SP);
		554	PUTBACK;
		555	call_sv (wait_callback, G_DISCARD);
		556	}
331	}	557	}
332		558
333	static void end_thread (void)	559	static void end_thread (void)
334	{	560	{
335	aio_req req;	561	bdb_req req;
336		562
337	Newz (0, req, 1, aio_cb);	563	Newz (0, req, 1, bdb_cb);
338		564
339	req->type = REQ_QUIT;	565	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	566	req->pri = PRI_MAX + PRI_BIAS;
341		567
342	LOCK (reqlock);	568	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	569	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	570	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	571	X_UNLOCK (reqlock);
346		572
347	LOCK (wrklock);	573	X_LOCK (wrklock);
348	--started;	574	--started;
349	UNLOCK (wrklock);	575	X_UNLOCK (wrklock);
350	}	576	}
351		577
352	static void set_max_idle (int nthreads)	578	static void set_max_idle (int nthreads)
353	{	579	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	580	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	581	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	582	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	583	}
358		584
359	static void min_parallel (int nthreads)	585	static void min_parallel (int nthreads)
360	{	586	{
361	if (wanted < nthreads)	587	if (wanted < nthreads)
…		…
369		595
370	while (started > wanted)	596	while (started > wanted)
371	end_thread ();	597	end_thread ();
372	}	598	}
373		599
374	static void poll_wait ()	600	static void poll_wait (void)
375	{	601	{
376	fd_set rfd;	602	fd_set rfd;
377		603
378	while (nreqs)	604	while (nreqs)
379	{	605	{
380	int size;	606	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	607	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	608	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	609	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		610
385	if (size)	611	if (size)
386	return;	612	return;
387		613
388	maybe_start_thread ();	614	maybe_start_thread ();
389		615
390	FD_ZERO(&rfd);	616	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	617	FD_SET (respipe [0], &rfd);
392		618
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	619	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	620	}
395	}	621	}
396		622
397	static int poll_cb ()	623	static int poll_cb (void)
398	{	624	{
399	dSP;	625	dSP;
400	int count = 0;	626	int count = 0;
401	int maxreqs = max_poll_reqs;	627	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	628	int do_croak = 0;
403	struct timeval tv_start, tv_now;	629	struct timeval tv_start, tv_now;
404	aio_req req;	630	bdb_req req;
405		631
406	if (max_poll_time)	632	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	633	gettimeofday (&tv_start, 0);
408		634
409	for (;;)	635	for (;;)
410	{	636	{
411	for (;;)	637	for (;;)
412	{	638	{
413	maybe_start_thread ();	639	maybe_start_thread ();
414		640
415	LOCK (reslock);	641	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	642	req = reqq_shift (&res_queue);
417		643
418	if (req)	644	if (req)
419	{	645	{
420	--npending;	646	--npending;
421		647
422	if (!res_queue.size)	648	if (!res_queue.size)
423	{	649	{
424	/* read any signals sent by the worker threads */	650	/* read any signals sent by the worker threads */
425	char buf [4];	651	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	652	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	653	;
428	}	654	}
429	}	655	}
430		656
431	UNLOCK (reslock);	657	X_UNLOCK (reslock);
432		658
433	if (!req)	659	if (!req)
434	break;	660	break;
435		661
436	--nreqs;	662	--nreqs;
…		…
466	}	692	}
467		693
468	return count;	694	return count;
469	}	695	}
470		696
471	static void create_pipe ()
472	{
473	if (pipe (respipe))
474	croak ("unable to initialize result pipe");
475
476	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
477	croak ("cannot set result pipe to nonblocking mode");
478
479	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	croak ("cannot set result pipe to nonblocking mode");
481	}
482
483	/*****************************************************************************/	697	/*****************************************************************************/
484		698
485	static void *aio_proc (void *thr_arg)	699	X_THREAD_PROC (bdb_proc)
486	{	700	{
487	aio_req req;	701	bdb_req req;
488	struct timespec ts;	702	struct timespec ts;
489	worker *self = (worker *)thr_arg;	703	worker *self = (worker *)thr_arg;
490		704
491	/* try to distribute timeouts somewhat evenly */	705	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	706	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		707
495	for (;;)	708	for (;;)
496	{	709	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	710	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		711
499	LOCK (reqlock);	712	X_LOCK (reqlock);
500		713
501	for (;;)	714	for (;;)
502	{	715	{
503	self->req = req = reqq_shift (&req_queue);	716	self->req = req = reqq_shift (&req_queue);
504		717
505	if (req)	718	if (req)
506	break;	719	break;
507		720
508	++idle;	721	++idle;
509		722
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	723	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	724	== ETIMEDOUT)
512	{	725	{
513	if (idle > max_idle)	726	if (idle > max_idle)
514	{	727	{
515	--idle;	728	--idle;
516	UNLOCK (reqlock);	729	X_UNLOCK (reqlock);
517	LOCK (wrklock);	730	X_LOCK (wrklock);
518	--started;	731	--started;
519	UNLOCK (wrklock);	732	X_UNLOCK (wrklock);
520	goto quit;	733	goto quit;
521	}	734	}
522		735
523	/* we are allowed to idle, so do so without any timeout */	736	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	737	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	738	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	739	}
527		740
528	--idle;	741	--idle;
529	}	742	}
530		743
531	--nready;	744	--nready;
532		745
533	UNLOCK (reqlock);	746	X_UNLOCK (reqlock);
534		747
535	errno = 0; /* strictly unnecessary */
536
537	switch (req->type)	748	switch (req->type)
538	{	749	{
539	case REQ_QUIT:	750	case REQ_QUIT:
		751	req->result = ENOSYS;
540	goto quit;	752	goto quit;
541		753
		754	case REQ_ENV_OPEN:
		755	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		756	break;
		757
		758	case REQ_ENV_CLOSE:
		759	req->result = req->env->close (req->env, req->uint1);
		760	break;
		761
		762	case REQ_ENV_TXN_CHECKPOINT:
		763	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		764	break;
		765
		766	case REQ_ENV_LOCK_DETECT:
		767	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		768	break;
		769
		770	case REQ_ENV_MEMP_SYNC:
		771	req->result = req->env->memp_sync (req->env, 0);
		772	break;
		773
		774	case REQ_ENV_MEMP_TRICKLE:
		775	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		776	break;
		777
		778	case REQ_ENV_DBREMOVE:
		779	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		780	break;
		781
		782	case REQ_ENV_DBRENAME:
		783	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		784	break;
		785
		786	case REQ_DB_OPEN:
		787	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		788	break;
		789
		790	case REQ_DB_CLOSE:
		791	req->result = req->db->close (req->db, req->uint1);
		792	break;
		793
		794	case REQ_DB_COMPACT:
		795	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		796	break;
		797
		798	case REQ_DB_SYNC:
		799	req->result = req->db->sync (req->db, req->uint1);
		800	break;
		801
		802	case REQ_DB_UPGRADE:
		803	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		804	break;
		805
		806	case REQ_DB_PUT:
		807	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		808	break;
		809
		810	case REQ_DB_GET:
		811	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		812	break;
		813
		814	case REQ_DB_PGET:
		815	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		816	break;
		817
		818	case REQ_DB_DEL:
		819	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		820	break;
		821
		822	case REQ_DB_KEY_RANGE:
		823	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		824	break;
		825
		826	case REQ_TXN_COMMIT:
		827	req->result = req->txn->commit (req->txn, req->uint1);
		828	break;
		829
		830	case REQ_TXN_ABORT:
		831	req->result = req->txn->abort (req->txn);
		832	break;
		833
		834	case REQ_TXN_FINISH:
		835	if (req->txn->flags & TXN_DEADLOCK)
		836	{
		837	req->result = req->txn->abort (req->txn);
		838	if (!req->result)
		839	req->result = DB_LOCK_DEADLOCK;
		840	}
		841	else
		842	req->result = req->txn->commit (req->txn, req->uint1);
		843	break;
		844
		845	case REQ_C_CLOSE:
		846	req->result = req->dbc->c_close (req->dbc);
		847	break;
		848
		849	case REQ_C_COUNT:
		850	{
		851	db_recno_t recno;
		852	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		853	req->uv1 = recno;
		854	}
		855	break;
		856
		857	case REQ_C_PUT:
		858	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		859	break;
		860
		861	case REQ_C_GET:
		862	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		863	break;
		864
		865	case REQ_C_PGET:
		866	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		867	break;
		868
		869	case REQ_C_DEL:
		870	req->result = req->dbc->c_del (req->dbc, req->uint1);
		871	break;
		872
		873	case REQ_SEQ_OPEN:
		874	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		875	break;
		876
		877	case REQ_SEQ_CLOSE:
		878	req->result = req->seq->close (req->seq, req->uint1);
		879	break;
		880
		881	case REQ_SEQ_GET:
		882	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		883	break;
		884
		885	case REQ_SEQ_REMOVE:
		886	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		887	break;
		888
542	default:	889	default:
543	//req->result = ENOSYS;	890	req->result = ENOSYS;
544	break;	891	break;
545	}	892	}
546		893
547	//req->errorno = errno;	894	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		895	req->txn->flags |= TXN_DEADLOCK;
548		896
549	LOCK (reslock);	897	X_LOCK (reslock);
550		898
551	++npending;	899	++npending;
552		900
553	if (!reqq_push (&res_queue, req))	901	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	902	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	903	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		904
557	self->req = 0;	905	self->req = 0;
558	worker_clear (self);	906	worker_clear (self);
559		907
560	UNLOCK (reslock);	908	X_UNLOCK (reslock);
561	}	909	}
562		910
563	quit:	911	quit:
564	LOCK (wrklock);	912	X_LOCK (wrklock);
565	worker_free (self);	913	worker_free (self);
566	UNLOCK (wrklock);	914	X_UNLOCK (wrklock);
567		915
568	return 0;	916	return 0;
569	}	917	}
570		918
571	/*****************************************************************************/	919	/*****************************************************************************/
572		920
573	static void atfork_prepare (void)	921	static void atfork_prepare (void)
574	{	922	{
575	LOCK (wrklock);	923	X_LOCK (wrklock);
576	LOCK (reqlock);	924	X_LOCK (reqlock);
577	LOCK (reslock);	925	X_LOCK (reslock);
578	}	926	}
579		927
580	static void atfork_parent (void)	928	static void atfork_parent (void)
581	{	929	{
582	UNLOCK (reslock);	930	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	931	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	932	X_UNLOCK (wrklock);
585	}	933	}
586		934
587	static void atfork_child (void)	935	static void atfork_child (void)
588	{	936	{
589	aio_req prv;	937	bdb_req prv;
590		938
591	while (prv = reqq_shift (&req_queue))	939	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	940	req_free (prv);
593		941
594	while (prv = reqq_shift (&res_queue))	942	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	957	idle = 0;
610	nreqs = 0;	958	nreqs = 0;
611	nready = 0;	959	nready = 0;
612	npending = 0;	960	npending = 0;
613		961
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	962	create_respipe ();
617		963
618	atfork_parent ();	964	atfork_parent ();
619	}	965	}
620		966
621	#define dREQ \	967	#define dREQ(reqtype) \
622	aio_req req; \	968	bdb_req req; \
623	int req_pri = next_pri; \	969	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	970	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	971	\
626	if (SvOK (callback) && !SvROK (callback)) \	972	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	973	croak ("callback has illegal type or extra arguments"); \
628	\	974	\
629	Newz (0, req, 1, aio_cb); \	975	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	976	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	977	croak ("out of memory during bdb_req allocation"); \
632	\	978	\
633	req->callback = newSVsv (callback); \	979	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
		980	req->type = (reqtype); \
634	req->pri = req_pri	981	req->pri = req_pri
635		982
636	#define REQ_SEND \	983	#define REQ_SEND \
637	req_send (req); \	984	req_send (req)
		985
		986	#define SvPTR(var, arg, type, class, nullok) \
		987	if (!SvOK (arg)) \
		988	{ \
		989	if (nullok != 1) \
		990	croak (# var " must be a " # class " object, not undef"); \
638	\	991	\
639	if (GIMME_V != G_VOID) \	992	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	993	} \
641		994	else if (sv_derived_from ((arg), # class)) \
		995	{ \
		996	IV tmp = SvIV ((SV*) SvRV (arg)); \
		997	(var) = INT2PTR (type, tmp); \
		998	if (!var && nullok != 2) \
		999	croak (# var " is not a valid " # class " object anymore"); \
		1000	} \
		1001	else \
		1002	croak (# var " is not of type " # class);
		1003
		1004	static void
		1005	ptr_nuke (SV *sv)
		1006	{
		1007	assert (SvROK (sv));
		1008	sv_setiv (SvRV (sv), 0);
		1009	}
		1010
		1011	static int
		1012	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1013	{
		1014	if (*mg->mg_ptr == '!') // should always be the case
		1015	if (-30999 <= errno && errno <= -30800)
		1016	{
		1017	sv_setnv (sv, (NV)errno);
		1018	sv_setpv (sv, db_strerror (errno));
		1019	SvNOK_on (sv); /* what a wonderful hack! */
		1020	// ^^^ copied from perl sources
		1021	return 0;
		1022	}
		1023
		1024	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1025	}
		1026
		1027	static MGVTBL vtbl_errno;
		1028
		1029	// this wonderful hack :( patches perl's $! variable to support our errno values
		1030	static void
		1031	patch_errno (void)
		1032	{
		1033	SV *sv;
		1034	MAGIC *mg;
		1035
		1036	if (!(sv = get_sv ("!", 1)))
		1037	return;
		1038
		1039	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1040	return;
		1041
		1042	if (mg->mg_virtual != &PL_vtbl_sv)
		1043	return;
		1044
		1045	vtbl_errno = PL_vtbl_sv;
		1046	vtbl_errno.svt_get = errno_get;
		1047	mg->mg_virtual = &vtbl_errno;
		1048	}
		1049
		1050	#if __GNUC__ >= 4
		1051	# define noinline __attribute__ ((noinline))
		1052	#else
		1053	# define noinline
		1054	#endif
		1055
		1056	static noinline SV *
		1057	pop_callback (I32 *ritems, SV *sv)
		1058	{
		1059	if (SvROK (sv))
		1060	{
		1061	HV *st;
		1062	GV *gvp;
		1063	CV *cv;
		1064	const char *name;
		1065
		1066	/* forgive me */
		1067	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1068	&& (st = SvSTASH (SvRV (sv)))
		1069	&& (name = HvNAME_get (st))
		1070	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1071	return 0;
		1072
		1073	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1074	{
		1075	--*ritems;
		1076	return (SV *)cv;
		1077	}
		1078	}
		1079
		1080	return 0;
		1081	}
		1082
		1083	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1084
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1085	MODULE = BDB PACKAGE = BDB
643		1086
644	PROTOTYPES: ENABLE	1087	PROTOTYPES: ENABLE
645		1088
646	BOOT:	1089	BOOT:
647	{	1090	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1091	HV *stash = gv_stashpv ("BDB", 1);
649		1092
650	create_pipe ();	1093	static const struct {
		1094	const char *name;
		1095	IV iv;
		1096	} *civ, const_iv[] = {
		1097	#define const_iv(name) { # name, (IV)DB_ ## name },
		1098	const_iv (RPCCLIENT)
		1099	const_iv (INIT_CDB)
		1100	const_iv (INIT_LOCK)
		1101	const_iv (INIT_LOG)
		1102	const_iv (INIT_MPOOL)
		1103	const_iv (INIT_REP)
		1104	const_iv (INIT_TXN)
		1105	const_iv (RECOVER)
		1106	const_iv (INIT_TXN)
		1107	const_iv (RECOVER_FATAL)
		1108	const_iv (CREATE)
		1109	const_iv (RDONLY)
		1110	const_iv (USE_ENVIRON)
		1111	const_iv (USE_ENVIRON_ROOT)
		1112	const_iv (LOCKDOWN)
		1113	const_iv (PRIVATE)
		1114	const_iv (REGISTER)
		1115	const_iv (SYSTEM_MEM)
		1116	const_iv (AUTO_COMMIT)
		1117	const_iv (CDB_ALLDB)
		1118	const_iv (DIRECT_DB)
		1119	const_iv (DSYNC_DB)
		1120	const_iv (NOLOCKING)
		1121	const_iv (NOMMAP)
		1122	const_iv (NOPANIC)
		1123	const_iv (OVERWRITE)
		1124	const_iv (PANIC_ENVIRONMENT)
		1125	const_iv (REGION_INIT)
		1126	const_iv (TIME_NOTGRANTED)
		1127	const_iv (TXN_NOSYNC)
		1128	const_iv (TXN_NOT_DURABLE)
		1129	const_iv (TXN_WRITE_NOSYNC)
		1130	const_iv (WRITECURSOR)
		1131	const_iv (YIELDCPU)
		1132	const_iv (ENCRYPT_AES)
		1133	const_iv (XA_CREATE)
		1134	const_iv (BTREE)
		1135	const_iv (HASH)
		1136	const_iv (QUEUE)
		1137	const_iv (RECNO)
		1138	const_iv (UNKNOWN)
		1139	const_iv (EXCL)
		1140	const_iv (READ_COMMITTED)
		1141	const_iv (READ_UNCOMMITTED)
		1142	const_iv (TRUNCATE)
		1143	const_iv (NOSYNC)
		1144	const_iv (CHKSUM)
		1145	const_iv (ENCRYPT)
		1146	const_iv (DUP)
		1147	const_iv (DUPSORT)
		1148	const_iv (RECNUM)
		1149	const_iv (RENUMBER)
		1150	const_iv (REVSPLITOFF)
		1151	const_iv (INORDER)
		1152	const_iv (CONSUME)
		1153	const_iv (CONSUME_WAIT)
		1154	const_iv (GET_BOTH)
		1155	const_iv (GET_BOTH_RANGE)
		1156	//const_iv (SET_RECNO)
		1157	//const_iv (MULTIPLE)
		1158	const_iv (SNAPSHOT)
		1159	const_iv (JOIN_ITEM)
		1160	const_iv (JOIN_NOSORT)
		1161	const_iv (RMW)
		1162
		1163	const_iv (NOTFOUND)
		1164	const_iv (KEYEMPTY)
		1165	const_iv (LOCK_DEADLOCK)
		1166	const_iv (LOCK_NOTGRANTED)
		1167	const_iv (RUNRECOVERY)
		1168	const_iv (OLD_VERSION)
		1169	const_iv (REP_HANDLE_DEAD)
		1170	const_iv (REP_LOCKOUT)
		1171	const_iv (SECONDARY_BAD)
		1172
		1173	const_iv (FREE_SPACE)
		1174	const_iv (FREELIST_ONLY)
		1175
		1176	const_iv (APPEND)
		1177	const_iv (NODUPDATA)
		1178	const_iv (NOOVERWRITE)
		1179
		1180	const_iv (TXN_NOWAIT)
		1181	const_iv (TXN_SYNC)
		1182
		1183	const_iv (SET_LOCK_TIMEOUT)
		1184	const_iv (SET_TXN_TIMEOUT)
		1185
		1186	const_iv (FIRST)
		1187	const_iv (NEXT)
		1188	const_iv (NEXT_DUP)
		1189	const_iv (NEXT_NODUP)
		1190	const_iv (PREV)
		1191	const_iv (PREV_NODUP)
		1192	const_iv (SET)
		1193	const_iv (SET_RANGE)
		1194	const_iv (LAST)
		1195	const_iv (BEFORE)
		1196	const_iv (AFTER)
		1197	const_iv (CURRENT)
		1198	const_iv (KEYFIRST)
		1199	const_iv (KEYLAST)
		1200	const_iv (NODUPDATA)
		1201
		1202	const_iv (FORCE)
		1203
		1204	const_iv (LOCK_DEFAULT)
		1205	const_iv (LOCK_EXPIRE)
		1206	const_iv (LOCK_MAXLOCKS)
		1207	const_iv (LOCK_MAXWRITE)
		1208	const_iv (LOCK_MINLOCKS)
		1209	const_iv (LOCK_MINWRITE)
		1210	const_iv (LOCK_OLDEST)
		1211	const_iv (LOCK_RANDOM)
		1212	const_iv (LOCK_YOUNGEST)
		1213
		1214	const_iv (SEQ_DEC)
		1215	const_iv (SEQ_INC)
		1216	const_iv (SEQ_WRAP)
		1217
		1218	const_iv (BUFFER_SMALL)
		1219	const_iv (DONOTINDEX)
		1220	const_iv (KEYEMPTY )
		1221	const_iv (KEYEXIST )
		1222	const_iv (LOCK_DEADLOCK)
		1223	const_iv (LOCK_NOTGRANTED)
		1224	const_iv (LOG_BUFFER_FULL)
		1225	const_iv (NOSERVER)
		1226	const_iv (NOSERVER_HOME)
		1227	const_iv (NOSERVER_ID)
		1228	const_iv (NOTFOUND)
		1229	const_iv (PAGE_NOTFOUND)
		1230	const_iv (REP_DUPMASTER)
		1231	const_iv (REP_HANDLE_DEAD)
		1232	const_iv (REP_HOLDELECTION)
		1233	const_iv (REP_IGNORE)
		1234	const_iv (REP_ISPERM)
		1235	const_iv (REP_JOIN_FAILURE)
		1236	const_iv (REP_LOCKOUT)
		1237	const_iv (REP_NEWMASTER)
		1238	const_iv (REP_NEWSITE)
		1239	const_iv (REP_NOTPERM)
		1240	const_iv (REP_UNAVAIL)
		1241	const_iv (RUNRECOVERY)
		1242	const_iv (SECONDARY_BAD)
		1243	const_iv (VERIFY_BAD)
		1244	const_iv (VERSION_MISMATCH)
		1245
		1246	const_iv (VERB_DEADLOCK)
		1247	const_iv (VERB_RECOVERY)
		1248	const_iv (VERB_REGISTER)
		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 >= 5
		1256	const_iv (MULTIVERSION)
		1257	const_iv (TXN_SNAPSHOT)
		1258	#endif
		1259	#if DB_VERSION_MINOR >= 6
		1260	const_iv (PREV_DUP)
		1261	const_iv (PRIORITY_UNCHANGED)
		1262	const_iv (PRIORITY_VERY_LOW)
		1263	const_iv (PRIORITY_LOW)
		1264	const_iv (PRIORITY_DEFAULT)
		1265	const_iv (PRIORITY_HIGH)
		1266	const_iv (PRIORITY_VERY_HIGH)
		1267	#endif
		1268	#if DB_VERSION_MINOR >= 7
		1269	const_iv (LOG_DIRECT)
		1270	const_iv (LOG_DSYNC)
		1271	const_iv (LOG_AUTO_REMOVE)
		1272	const_iv (LOG_IN_MEMORY)
		1273	const_iv (LOG_ZERO)
		1274	#else
		1275	const_iv (DIRECT_LOG)
		1276	const_iv (DSYNC_LOG)
		1277	const_iv (LOG_AUTOREMOVE)
		1278	const_iv (LOG_INMEMORY)
		1279	#endif
		1280	};
		1281
		1282	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1283	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1284
		1285	{
		1286	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1287	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1288
		1289	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1290	}
		1291
		1292	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1293
		1294	create_respipe ();
		1295
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1296	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1297	patch_errno ();
652	}	1298	}
653		1299
654	void	1300	void
655	max_poll_reqs (int nreqs)	1301	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1302	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1331	max_outstanding = maxreqs;
686	OUTPUT:	1332	OUTPUT:
687	RETVAL	1333	RETVAL
688		1334
689	int	1335	int
690	bdbreq_pri (int pri = 0)	1336	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1337	PROTOTYPE: ;$
692	CODE:	1338	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1339	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1340	if (items > 0)
695	{	1341	{
…		…
699	}	1345	}
700	OUTPUT:	1346	OUTPUT:
701	RETVAL	1347	RETVAL
702		1348
703	void	1349	void
704	bdbreq_nice (int nice = 0)	1350	dbreq_nice (int nice = 0)
705	CODE:	1351	CODE:
706	nice = next_pri - nice;	1352	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1353	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1354	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1355	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1363	poll_wait ();
718	poll_cb ();	1364	poll_cb ();
719	}	1365	}
720		1366
721	int	1367	int
722	poll()	1368	poll ()
723	PROTOTYPE:	1369	PROTOTYPE:
724	CODE:	1370	CODE:
725	poll_wait ();	1371	poll_wait ();
726	RETVAL = poll_cb ();	1372	RETVAL = poll_cb ();
727	OUTPUT:	1373	OUTPUT:
728	RETVAL	1374	RETVAL
729		1375
730	int	1376	int
731	poll_fileno()	1377	poll_fileno ()
732	PROTOTYPE:	1378	PROTOTYPE:
733	CODE:	1379	CODE:
734	RETVAL = respipe [0];	1380	RETVAL = respipe [0];
735	OUTPUT:	1381	OUTPUT:
736	RETVAL	1382	RETVAL
737		1383
738	int	1384	int
739	poll_cb(...)	1385	poll_cb (...)
740	PROTOTYPE:	1386	PROTOTYPE:
741	CODE:	1387	CODE:
742	RETVAL = poll_cb ();	1388	RETVAL = poll_cb ();
743	OUTPUT:	1389	OUTPUT:
744	RETVAL	1390	RETVAL
745		1391
746	void	1392	void
747	poll_wait()	1393	poll_wait ()
748	PROTOTYPE:	1394	PROTOTYPE:
749	CODE:	1395	CODE:
750	poll_wait ();	1396	poll_wait ();
751		1397
752	int	1398	int
753	nreqs()	1399	nreqs ()
754	PROTOTYPE:	1400	PROTOTYPE:
755	CODE:	1401	CODE:
756	RETVAL = nreqs;	1402	RETVAL = nreqs;
757	OUTPUT:	1403	OUTPUT:
758	RETVAL	1404	RETVAL
759		1405
760	int	1406	int
761	nready()	1407	nready ()
762	PROTOTYPE:	1408	PROTOTYPE:
763	CODE:	1409	CODE:
764	RETVAL = get_nready ();	1410	RETVAL = get_nready ();
765	OUTPUT:	1411	OUTPUT:
766	RETVAL	1412	RETVAL
767		1413
768	int	1414	int
769	npending()	1415	npending ()
770	PROTOTYPE:	1416	PROTOTYPE:
771	CODE:	1417	CODE:
772	RETVAL = get_npending ();	1418	RETVAL = get_npending ();
773	OUTPUT:	1419	OUTPUT:
774	RETVAL	1420	RETVAL
775		1421
776	int	1422	int
777	nthreads()	1423	nthreads ()
778	PROTOTYPE:	1424	PROTOTYPE:
779	CODE:	1425	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1426	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1427	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1428	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1429	OUTPUT:
784	RETVAL	1430	RETVAL
785		1431
		1432	void
		1433	set_sync_prepare (SV *cb)
		1434	PROTOTYPE: &
		1435	CODE:
		1436	SvREFCNT_dec (prepare_cb);
		1437	prepare_cb = newSVsv (cb);
786		1438
		1439	char *
		1440	strerror (int errorno = errno)
		1441	PROTOTYPE: ;$
		1442	CODE:
		1443	RETVAL = db_strerror (errorno);
		1444	OUTPUT:
		1445	RETVAL
		1446
		1447	void _on_next_submit (SV *cb)
		1448	CODE:
		1449	SvREFCNT_dec (on_next_submit);
		1450	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1451
		1452	DB_ENV *
		1453	db_env_create (U32 env_flags = 0)
		1454	CODE:
		1455	{
		1456	errno = db_env_create (&RETVAL, env_flags);
		1457	if (errno)
		1458	croak ("db_env_create: %s", db_strerror (errno));
		1459
		1460	if (0)
		1461	{
		1462	RETVAL->set_errcall (RETVAL, debug_errcall);
		1463	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1464	}
		1465	}
		1466	OUTPUT:
		1467	RETVAL
		1468
		1469	void
		1470	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1471	PREINIT:
		1472	CALLBACK
		1473	CODE:
		1474	{
		1475	dREQ (REQ_ENV_OPEN);
		1476	req->env = env;
		1477	req->uint1 = open_flags | DB_THREAD;
		1478	req->int1 = mode;
		1479	req->buf1 = strdup_ornull (db_home);
		1480	REQ_SEND;
		1481	}
		1482
		1483	void
		1484	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1485	PREINIT:
		1486	CALLBACK
		1487	CODE:
		1488	{
		1489	dREQ (REQ_ENV_CLOSE);
		1490	req->env = env;
		1491	req->uint1 = flags;
		1492	REQ_SEND;
		1493	ptr_nuke (ST (0));
		1494	}
		1495
		1496	void
		1497	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1498	PREINIT:
		1499	CALLBACK
		1500	CODE:
		1501	{
		1502	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1503	req->env = env;
		1504	req->uint1 = kbyte;
		1505	req->int1 = min;
		1506	req->uint2 = flags;
		1507	REQ_SEND;
		1508	}
		1509
		1510	void
		1511	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1512	PREINIT:
		1513	CALLBACK
		1514	CODE:
		1515	{
		1516	dREQ (REQ_ENV_LOCK_DETECT);
		1517	req->env = env;
		1518	req->uint1 = flags;
		1519	req->uint2 = atype;
		1520	/* req->int2 = 0; dummy */
		1521	REQ_SEND;
		1522	}
		1523
		1524	void
		1525	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1526	PREINIT:
		1527	CALLBACK
		1528	CODE:
		1529	{
		1530	dREQ (REQ_ENV_MEMP_SYNC);
		1531	req->env = env;
		1532	REQ_SEND;
		1533	}
		1534
		1535	void
		1536	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1537	PREINIT:
		1538	CALLBACK
		1539	CODE:
		1540	{
		1541	dREQ (REQ_ENV_MEMP_TRICKLE);
		1542	req->env = env;
		1543	req->int1 = percent;
		1544	REQ_SEND;
		1545	}
		1546
		1547	void
		1548	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1549	PREINIT:
		1550	CALLBACK
		1551	CODE:
		1552	{
		1553	dREQ (REQ_ENV_DBREMOVE);
		1554	req->env = env;
		1555	req->buf1 = strdup_ornull (file);
		1556	req->buf2 = strdup_ornull (database);
		1557	req->uint1 = flags;
		1558	REQ_SEND;
		1559	}
		1560
		1561	void
		1562	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)
		1563	PREINIT:
		1564	CALLBACK
		1565	CODE:
		1566	{
		1567	dREQ (REQ_ENV_DBRENAME);
		1568	req->env = env;
		1569	req->buf1 = strdup_ornull (file);
		1570	req->buf2 = strdup_ornull (database);
		1571	req->buf3 = strdup_ornull (newname);
		1572	req->uint1 = flags;
		1573	REQ_SEND;
		1574	}
		1575
		1576	DB *
		1577	db_create (DB_ENV *env = 0, U32 flags = 0)
		1578	CODE:
		1579	{
		1580	errno = db_create (&RETVAL, env, flags);
		1581	if (errno)
		1582	croak ("db_create: %s", db_strerror (errno));
		1583
		1584	if (RETVAL)
		1585	RETVAL->app_private = (void *)newSVsv (ST (0));
		1586	}
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	void
		1591	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1592	PREINIT:
		1593	CALLBACK
		1594	CODE:
		1595	{
		1596	dREQ (REQ_DB_OPEN);
		1597	req->db = db;
		1598	req->txn = txnid;
		1599	req->buf1 = strdup_ornull (file);
		1600	req->buf2 = strdup_ornull (database);
		1601	req->int1 = type;
		1602	req->uint1 = flags | DB_THREAD;
		1603	req->int2 = mode;
		1604	REQ_SEND;
		1605	}
		1606
		1607	void
		1608	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1609	PREINIT:
		1610	CALLBACK
		1611	CODE:
		1612	{
		1613	dREQ (REQ_DB_CLOSE);
		1614	req->db = db;
		1615	req->uint1 = flags;
		1616	req->sv1 = (SV *)db->app_private;
		1617	REQ_SEND;
		1618	ptr_nuke (ST (0));
		1619	}
		1620
		1621	void
		1622	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)
		1623	PREINIT:
		1624	CALLBACK
		1625	CODE:
		1626	{
		1627	dREQ (REQ_DB_COMPACT);
		1628	req->db = db;
		1629	req->txn = txn;
		1630	sv_to_dbt (&req->dbt1, start);
		1631	sv_to_dbt (&req->dbt2, stop);
		1632	req->uint1 = flags;
		1633	REQ_SEND;
		1634	}
		1635
		1636	void
		1637	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1638	PREINIT:
		1639	CALLBACK
		1640	CODE:
		1641	{
		1642	dREQ (REQ_DB_SYNC);
		1643	req->db = db;
		1644	req->uint1 = flags;
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1650	PREINIT:
		1651	CALLBACK
		1652	CODE:
		1653	{
		1654	dREQ (REQ_DB_SYNC);
		1655	req->db = db;
		1656	req->buf1 = strdup (file);
		1657	req->uint1 = flags;
		1658	REQ_SEND;
		1659	}
		1660
		1661	void
		1662	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1663	PREINIT:
		1664	CALLBACK
		1665	CODE:
		1666	{
		1667	dREQ (REQ_DB_KEY_RANGE);
		1668	req->db = db;
		1669	req->txn = txn;
		1670	sv_to_dbt (&req->dbt1, key);
		1671	req->uint1 = flags;
		1672	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1673	REQ_SEND;
		1674	}
		1675
		1676	void
		1677	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1678	PREINIT:
		1679	CALLBACK
		1680	CODE:
		1681	{
		1682	dREQ (REQ_DB_PUT);
		1683	req->db = db;
		1684	req->txn = txn;
		1685	sv_to_dbt (&req->dbt1, key);
		1686	sv_to_dbt (&req->dbt2, data);
		1687	req->uint1 = flags;
		1688	REQ_SEND;
		1689	}
		1690
		1691	void
		1692	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1693	PREINIT:
		1694	CALLBACK
		1695	CODE:
		1696	if (SvREADONLY (data))
		1697	croak ("can't modify read-only data scalar in db_get");
		1698	{
		1699	dREQ (REQ_DB_GET);
		1700	req->db = db;
		1701	req->txn = txn;
		1702	req->uint1 = flags;
		1703	sv_to_dbt (&req->dbt1, key);
		1704	req->dbt3.flags = DB_DBT_MALLOC;
		1705	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1706	REQ_SEND;
		1707	}
		1708
		1709	void
		1710	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1711	PREINIT:
		1712	CALLBACK
		1713	CODE:
		1714	if (SvREADONLY (data))
		1715	croak ("can't modify read-only data scalar in db_pget");
		1716	{
		1717	dREQ (REQ_DB_PGET);
		1718	req->db = db;
		1719	req->txn = txn;
		1720	req->uint1 = flags;
		1721	sv_to_dbt (&req->dbt1, key);
		1722	sv_to_dbt (&req->dbt2, pkey);
		1723	req->dbt3.flags = DB_DBT_MALLOC;
		1724	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1725	REQ_SEND;
		1726	}
		1727
		1728	void
		1729	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1730	PREINIT:
		1731	CALLBACK
		1732	CODE:
		1733	{
		1734	dREQ (REQ_DB_DEL);
		1735	req->db = db;
		1736	req->txn = txn;
		1737	req->uint1 = flags;
		1738	sv_to_dbt (&req->dbt1, key);
		1739	REQ_SEND;
		1740	}
		1741
		1742	void
		1743	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1744	PREINIT:
		1745	CALLBACK
		1746	CODE:
		1747	{
		1748	dREQ (REQ_TXN_COMMIT);
		1749	req->txn = txn;
		1750	req->uint1 = flags;
		1751	REQ_SEND;
		1752	ptr_nuke (ST (0));
		1753	}
		1754
		1755	void
		1756	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1757	PREINIT:
		1758	CALLBACK
		1759	CODE:
		1760	{
		1761	dREQ (REQ_TXN_ABORT);
		1762	req->txn = txn;
		1763	REQ_SEND;
		1764	ptr_nuke (ST (0));
		1765	}
		1766
		1767	void
		1768	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1769	PREINIT:
		1770	CALLBACK
		1771	CODE:
		1772	{
		1773	dREQ (REQ_TXN_FINISH);
		1774	req->txn = txn;
		1775	req->uint1 = flags;
		1776	REQ_SEND;
		1777	ptr_nuke (ST (0));
		1778	}
		1779
		1780	void
		1781	db_c_close (DBC *dbc, SV *callback = 0)
		1782	PREINIT:
		1783	CALLBACK
		1784	CODE:
		1785	{
		1786	dREQ (REQ_C_CLOSE);
		1787	req->dbc = dbc;
		1788	REQ_SEND;
		1789	ptr_nuke (ST (0));
		1790	}
		1791
		1792	void
		1793	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1794	PREINIT:
		1795	CALLBACK
		1796	CODE:
		1797	{
		1798	dREQ (REQ_C_COUNT);
		1799	req->dbc = dbc;
		1800	req->sv1 = SvREFCNT_inc (count);
		1801	REQ_SEND;
		1802	}
		1803
		1804	void
		1805	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1806	PREINIT:
		1807	CALLBACK
		1808	CODE:
		1809	{
		1810	dREQ (REQ_C_PUT);
		1811	req->dbc = dbc;
		1812	sv_to_dbt (&req->dbt1, key);
		1813	sv_to_dbt (&req->dbt2, data);
		1814	req->uint1 = flags;
		1815	REQ_SEND;
		1816	}
		1817
		1818	void
		1819	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1820	PREINIT:
		1821	CALLBACK
		1822	CODE:
		1823	{
		1824	dREQ (REQ_C_GET);
		1825	req->dbc = dbc;
		1826	req->uint1 = flags;
		1827	if ((flags & DB_SET) == DB_SET
		1828	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1829	sv_to_dbt (&req->dbt1, key);
		1830	else
		1831	req->dbt1.flags = DB_DBT_MALLOC;
		1832
		1833	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1834
		1835	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1836	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1837	sv_to_dbt (&req->dbt3, data);
		1838	else
		1839	req->dbt3.flags = DB_DBT_MALLOC;
		1840
		1841	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1842	REQ_SEND;
		1843	}
		1844
		1845	void
		1846	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1847	PREINIT:
		1848	CALLBACK
		1849	CODE:
		1850	{
		1851	dREQ (REQ_C_PGET);
		1852	req->dbc = dbc;
		1853	req->uint1 = flags;
		1854	if ((flags & DB_SET) == DB_SET
		1855	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1856	sv_to_dbt (&req->dbt1, key);
		1857	else
		1858	req->dbt1.flags = DB_DBT_MALLOC;
		1859
		1860	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1861
		1862	req->dbt2.flags = DB_DBT_MALLOC;
		1863	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1864
		1865	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1866	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1867	sv_to_dbt (&req->dbt3, data);
		1868	else
		1869	req->dbt3.flags = DB_DBT_MALLOC;
		1870
		1871	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1872	REQ_SEND;
		1873	}
		1874
		1875	void
		1876	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1877	PREINIT:
		1878	CALLBACK
		1879	CODE:
		1880	{
		1881	dREQ (REQ_C_DEL);
		1882	req->dbc = dbc;
		1883	req->uint1 = flags;
		1884	REQ_SEND;
		1885	}
		1886
		1887
		1888	void
		1889	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1890	PREINIT:
		1891	CALLBACK
		1892	CODE:
		1893	{
		1894	dREQ (REQ_SEQ_OPEN);
		1895	req->seq = seq;
		1896	req->txn = txnid;
		1897	req->uint1 = flags | DB_THREAD;
		1898	sv_to_dbt (&req->dbt1, key);
		1899	REQ_SEND;
		1900	}
		1901
		1902	void
		1903	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1904	PREINIT:
		1905	CALLBACK
		1906	CODE:
		1907	{
		1908	dREQ (REQ_SEQ_CLOSE);
		1909	req->seq = seq;
		1910	req->uint1 = flags;
		1911	REQ_SEND;
		1912	ptr_nuke (ST (0));
		1913	}
		1914
		1915	void
		1916	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1917	PREINIT:
		1918	CALLBACK
		1919	CODE:
		1920	{
		1921	dREQ (REQ_SEQ_GET);
		1922	req->seq = seq;
		1923	req->txn = txnid;
		1924	req->int1 = delta;
		1925	req->uint1 = flags;
		1926	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1927	REQ_SEND;
		1928	}
		1929
		1930	void
		1931	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1932	PREINIT:
		1933	CALLBACK
		1934	CODE:
		1935	{
		1936	dREQ (REQ_SEQ_REMOVE);
		1937	req->seq = seq;
		1938	req->txn = txnid;
		1939	req->uint1 = flags;
		1940	REQ_SEND;
		1941	}
		1942
		1943
		1944	MODULE = BDB PACKAGE = BDB::Env
		1945
		1946	void
		1947	DESTROY (DB_ENV_ornuked *env)
		1948	CODE:
		1949	if (env)
		1950	env->close (env, 0);
		1951
		1952	int set_data_dir (DB_ENV *env, const char *dir)
		1953	CODE:
		1954	RETVAL = env->set_data_dir (env, dir);
		1955	OUTPUT:
		1956	RETVAL
		1957
		1958	int set_tmp_dir (DB_ENV *env, const char *dir)
		1959	CODE:
		1960	RETVAL = env->set_tmp_dir (env, dir);
		1961	OUTPUT:
		1962	RETVAL
		1963
		1964	int set_lg_dir (DB_ENV *env, const char *dir)
		1965	CODE:
		1966	RETVAL = env->set_lg_dir (env, dir);
		1967	OUTPUT:
		1968	RETVAL
		1969
		1970	int set_shm_key (DB_ENV *env, long shm_key)
		1971	CODE:
		1972	RETVAL = env->set_shm_key (env, shm_key);
		1973	OUTPUT:
		1974	RETVAL
		1975
		1976	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1977	CODE:
		1978	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1979	OUTPUT:
		1980	RETVAL
		1981
		1982	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		1983	CODE:
		1984	RETVAL = env->set_flags (env, flags, onoff);
		1985	OUTPUT:
		1986	RETVAL
		1987
		1988	#if DB_VERSION_MINOR >= 7
		1989
		1990	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		1991	CODE:
		1992	RETVAL = env->set_intermediate_dir_mode (env, mode);
		1993	OUTPUT:
		1994	RETVAL
		1995
		1996	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		1997	CODE:
		1998	RETVAL = env->log_set_config (env, flags, onoff);
		1999	OUTPUT:
		2000	RETVAL
		2001
		2002	#endif
		2003
		2004
		2005	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2006	CODE:
		2007	env->set_errfile (env, errfile);
		2008
		2009	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2010	CODE:
		2011	env->set_msgfile (env, msgfile);
		2012
		2013	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2014	CODE:
		2015	RETVAL = env->set_verbose (env, which, onoff);
		2016	OUTPUT:
		2017	RETVAL
		2018
		2019	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2020	CODE:
		2021	RETVAL = env->set_encrypt (env, password, flags);
		2022	OUTPUT:
		2023	RETVAL
		2024
		2025	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2026	CODE:
		2027	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2028	OUTPUT:
		2029	RETVAL
		2030
		2031	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2032	CODE:
		2033	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2034	OUTPUT:
		2035	RETVAL
		2036
		2037	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2038	CODE:
		2039	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2040	OUTPUT:
		2041	RETVAL
		2042
		2043	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2044	CODE:
		2045	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2046	OUTPUT:
		2047	RETVAL
		2048
		2049	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2050	CODE:
		2051	RETVAL = env->set_lk_detect (env, detect);
		2052	OUTPUT:
		2053	RETVAL
		2054
		2055	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2056	CODE:
		2057	RETVAL = env->set_lk_max_lockers (env, max);
		2058	OUTPUT:
		2059	RETVAL
		2060
		2061	int set_lk_max_locks (DB_ENV *env, U32 max)
		2062	CODE:
		2063	RETVAL = env->set_lk_max_locks (env, max);
		2064	OUTPUT:
		2065	RETVAL
		2066
		2067	int set_lk_max_objects (DB_ENV *env, U32 max)
		2068	CODE:
		2069	RETVAL = env->set_lk_max_objects (env, max);
		2070	OUTPUT:
		2071	RETVAL
		2072
		2073	int set_lg_bsize (DB_ENV *env, U32 max)
		2074	CODE:
		2075	RETVAL = env->set_lg_bsize (env, max);
		2076	OUTPUT:
		2077	RETVAL
		2078
		2079	int set_lg_max (DB_ENV *env, U32 max)
		2080	CODE:
		2081	RETVAL = env->set_lg_max (env, max);
		2082	OUTPUT:
		2083	RETVAL
		2084
		2085	int mutex_set_max (DB_ENV *env, U32 max)
		2086	CODE:
		2087	RETVAL = env->mutex_set_max (env, max);
		2088	OUTPUT:
		2089	RETVAL
		2090
		2091	int mutex_set_increment (DB_ENV *env, U32 increment)
		2092	CODE:
		2093	RETVAL = env->mutex_set_increment (env, increment);
		2094	OUTPUT:
		2095	RETVAL
		2096
		2097	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2098	CODE:
		2099	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int mutex_set_align (DB_ENV *env, U32 align)
		2104	CODE:
		2105	RETVAL = env->mutex_set_align (env, align);
		2106	OUTPUT:
		2107	RETVAL
		2108
		2109	DB_TXN *
		2110	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2111	CODE:
		2112	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2113	if (errno)
		2114	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2115	OUTPUT:
		2116	RETVAL
		2117
		2118	MODULE = BDB PACKAGE = BDB::Db
		2119
		2120	void
		2121	DESTROY (DB_ornuked *db)
		2122	CODE:
		2123	if (db)
		2124	{
		2125	SV *env = (SV *)db->app_private;
		2126	db->close (db, 0);
		2127	SvREFCNT_dec (env);
		2128	}
		2129
		2130	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2131	CODE:
		2132	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	int set_flags (DB *db, U32 flags)
		2137	CODE:
		2138	RETVAL = db->set_flags (db, flags);
		2139	OUTPUT:
		2140	RETVAL
		2141
		2142	int set_encrypt (DB *db, const char *password, U32 flags)
		2143	CODE:
		2144	RETVAL = db->set_encrypt (db, password, flags);
		2145	OUTPUT:
		2146	RETVAL
		2147
		2148	int set_lorder (DB *db, int lorder)
		2149	CODE:
		2150	RETVAL = db->set_lorder (db, lorder);
		2151	OUTPUT:
		2152	RETVAL
		2153
		2154	int set_bt_minkey (DB *db, U32 minkey)
		2155	CODE:
		2156	RETVAL = db->set_bt_minkey (db, minkey);
		2157	OUTPUT:
		2158	RETVAL
		2159
		2160	int set_re_delim (DB *db, int delim)
		2161	CODE:
		2162	RETVAL = db->set_re_delim (db, delim);
		2163	OUTPUT:
		2164	RETVAL
		2165
		2166	int set_re_pad (DB *db, int re_pad)
		2167	CODE:
		2168	RETVAL = db->set_re_pad (db, re_pad);
		2169	OUTPUT:
		2170	RETVAL
		2171
		2172	int set_re_source (DB *db, char *source)
		2173	CODE:
		2174	RETVAL = db->set_re_source (db, source);
		2175	OUTPUT:
		2176	RETVAL
		2177
		2178	int set_re_len (DB *db, U32 re_len)
		2179	CODE:
		2180	RETVAL = db->set_re_len (db, re_len);
		2181	OUTPUT:
		2182	RETVAL
		2183
		2184	int set_h_ffactor (DB *db, U32 h_ffactor)
		2185	CODE:
		2186	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	int set_h_nelem (DB *db, U32 h_nelem)
		2191	CODE:
		2192	RETVAL = db->set_h_nelem (db, h_nelem);
		2193	OUTPUT:
		2194	RETVAL
		2195
		2196	int set_q_extentsize (DB *db, U32 extentsize)
		2197	CODE:
		2198	RETVAL = db->set_q_extentsize (db, extentsize);
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	DBC *
		2203	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2204	CODE:
		2205	errno = db->cursor (db, txn, &RETVAL, flags);
		2206	if (errno)
		2207	croak ("DB->cursor: %s", db_strerror (errno));
		2208	OUTPUT:
		2209	RETVAL
		2210
		2211	DB_SEQUENCE *
		2212	sequence (DB *db, U32 flags = 0)
		2213	CODE:
		2214	{
		2215	errno = db_sequence_create (&RETVAL, db, flags);
		2216	if (errno)
		2217	croak ("db_sequence_create: %s", db_strerror (errno));
		2218	}
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222
		2223	MODULE = BDB PACKAGE = BDB::Txn
		2224
		2225	void
		2226	DESTROY (DB_TXN_ornuked *txn)
		2227	CODE:
		2228	if (txn)
		2229	txn->abort (txn);
		2230
		2231	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2232	CODE:
		2233	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2234	OUTPUT:
		2235	RETVAL
		2236
		2237	int failed (DB_TXN *txn)
		2238	CODE:
		2239	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2240	OUTPUT:
		2241	RETVAL
		2242
		2243
		2244	MODULE = BDB PACKAGE = BDB::Cursor
		2245
		2246	void
		2247	DESTROY (DBC_ornuked *dbc)
		2248	CODE:
		2249	if (dbc)
		2250	dbc->c_close (dbc);
		2251
		2252	#if DB_VERSION_MINOR >= 6
		2253
		2254	int set_priority (DBC *dbc, int priority)
		2255	CODE:
		2256	dbc->set_priority (dbc, priority);
		2257
		2258	#endif
		2259
		2260	MODULE = BDB PACKAGE = BDB::Sequence
		2261
		2262	void
		2263	DESTROY (DB_SEQUENCE_ornuked *seq)
		2264	CODE:
		2265	if (seq)
		2266	seq->close (seq, 0);
		2267
		2268	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2269	CODE:
		2270	RETVAL = seq->initial_value (seq, value);
		2271	OUTPUT:
		2272	RETVAL
		2273
		2274	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2275	CODE:
		2276	RETVAL = seq->set_cachesize (seq, size);
		2277	OUTPUT:
		2278	RETVAL
		2279
		2280	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2281	CODE:
		2282	RETVAL = seq->set_flags (seq, flags);
		2283	OUTPUT:
		2284	RETVAL
		2285
		2286	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2287	CODE:
		2288	RETVAL = seq->set_range (seq, min, max);
		2289	OUTPUT:
		2290	RETVAL
		2291
		2292

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