ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/BDB/BDB.xs

Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.51 by root, Thu Sep 25 13:28:37 2008 UTC

1	/* solaris */	1	#include <sys/user.h>
2	#define _POSIX_PTHREAD_SEMANTICS 1	2	#include <sys/ptrace.h>
3		3
4	#if __linux && !defined(_GNU_SOURCE)	4	#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
5	# define _GNU_SOURCE
6	#endif
7		5
8	/* just in case */	6	#include "xthread.h"
9	#define _REENTRANT 1
10		7
11	#include <errno.h>	8	#include <errno.h>
12		9
13	#include "EXTERN.h"	10	#include "EXTERN.h"
14	#include "perl.h"	11	#include "perl.h"
15	#include "XSUB.h"	12	#include "XSUB.h"
16		13
17	#include <pthread.h>	14	// perl stupidly defines these as macros, breaking
		15	// lots and lots of code.
		16	#undef open
		17	#undef close
		18	#undef abort
		19	#undef malloc
		20	#undef free
		21	#undef send
18		22
19	#include <stddef.h>	23	#include <stddef.h>
20	#include <stdlib.h>	24	#include <stdlib.h>
21	#include <errno.h>	25	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	26	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	27	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	28	#include <fcntl.h>
29	#include <signal.h>	29
		30	#ifndef _WIN32
		31	# include <sys/time.h>
		32	# include <unistd.h>
		33	#endif
		34
30	#include <sched.h>	35	#include <db.h>
		36
		37	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		38	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		39	#endif
31		40
32	/* number of seconds after which idle threads exit */	41	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	42	#define IDLE_TIMEOUT 10
34		43
35	/* wether word reads are potentially non-atomic.	44	typedef DB_ENV DB_ENV_ornull;
36	* this is conservatice, likely most arches this runs	45	typedef DB_TXN DB_TXN_ornull;
37	* on have atomic word read/writes.	46	typedef DBC DBC_ornull;
38	*/	47	typedef DB DB_ornull;
39	#ifndef WORDACCESS_UNSAFE	48
40	# if __i386 || __x86_64	49	typedef DB_ENV DB_ENV_ornuked;
41	# define WORDACCESS_UNSAFE 0	50	typedef DB_TXN DB_TXN_ornuked;
42	# else	51	typedef DBC DBC_ornuked;
43	# define WORDACCESS_UNSAFE 1	52	typedef DB DB_ornuked;
44	# endif	53
		54	#if DB_VERSION_MINOR >= 3
		55	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		56	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
45	#endif	57	#endif
46		58
47	typedef SV SV8; /* byte-sv, used for argument-checking */	59	typedef SV SV8; /* byte-sv, used for argument-checking */
		60	typedef char *bdb_filename;
48		61
		62	static SV *prepare_cb;
		63
		64	#if DB_VERSION_MINOR >= 6
		65	# define c_close close
		66	# define c_count count
		67	# define c_del del
		68	# define c_dup dup
		69	# define c_get get
		70	# define c_pget pget
		71	# define c_put put
		72	#endif
		73
		74	static char *
		75	get_bdb_filename (SV *sv)
		76	{
		77	if (!SvOK (sv))
		78	return 0;
		79
		80	#if _WIN32
		81	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		82	{
		83	STRLEN len;
		84	char *src = SvPVbyte (sv, len);
		85	SV *t1 = sv_newmortal ();
		86	SV *t2 = sv_newmortal ();
		87
		88	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		89	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		90
		91	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		92	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		93	SvPOK_only (t2);
		94	SvPVX (t2)[len] = 0;
		95	SvCUR_set (t2, len);
		96
		97	return SvPVX (t2);
		98	}
		99	#else
		100	return SvPVbyte_nolen (sv);
		101	#endif
		102	}
		103
		104	static void
		105	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		106	{
		107	printf ("err[%s]\n", msg);
		108	}
		109
		110	static void
		111	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		112	{
		113	printf ("msg[%s]\n", msg);
		114	}
		115
		116	static char *
		117	strdup_ornull (const char *s)
		118	{
		119	return s ? strdup (s) : 0;
		120	}
		121
		122	static void
		123	sv_to_dbt (DBT *dbt, SV *sv)
		124	{
		125	STRLEN len;
		126	char *data = SvPVbyte (sv, len);
		127
		128	dbt->data = malloc (len);
		129	memcpy (dbt->data, data, len);
		130	dbt->size = len;
		131	dbt->flags = DB_DBT_REALLOC;
		132	}
		133
		134	static void
		135	dbt_to_sv (SV *sv, DBT *dbt)
		136	{
		137	if (sv)
		138	{
		139	SvREADONLY_off (sv);
		140	sv_setsv_mg (sv, dbt->data ? newSVpvn (dbt->data, dbt->size) : &PL_sv_undef);
		141	SvREFCNT_dec (sv);
		142	}
		143
		144	//assert (dbt->flags & DBT_MALLOC || !dbt->data);
		145	free (dbt->data);
		146	}
		147
49	enum {	148	enum {
50	REQ_QUIT,	149	REQ_QUIT,
		150	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		151	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		152	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		153	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		154	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		155	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		156	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	157	};
52		158
53	#define AIO_CB \	159	typedef struct bdb_cb
		160	{
54	struct aio_cb *volatile next; \	161	struct bdb_cb *volatile next;
55	SV *callback; \	162	SV *callback;
56	int type, pri	163	int type, pri, result;
57		164
58	typedef struct aio_cb	165	DB_ENV *env;
59	{	166	DB *db;
60	AIO_CB;	167	DB_TXN *txn;
61	} aio_cb;	168	DBC *dbc;
62		169
		170	UV uv1;
		171	int int1, int2;
		172	U32 uint1, uint2;
		173	char *buf1, *buf2, *buf3;
		174	SV *sv1, *sv2, *sv3;
		175
		176	DBT dbt1, dbt2, dbt3;
		177	DB_KEY_RANGE key_range;
		178	#if DB_VERSION_MINOR >= 3
		179	DB_SEQUENCE *seq;
		180	db_seq_t seq_t;
		181	#endif
		182
		183	SV *rsv1, *rsv2; // keep some request objects alive
		184	} bdb_cb;
		185
63	typedef aio_cb *aio_req;	186	typedef bdb_cb *bdb_req;
64		187
65	enum {	188	enum {
66	PRI_MIN = -4,	189	PRI_MIN = -4,
67	PRI_MAX = 4,	190	PRI_MAX = 4,
68		191
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	194	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	195	};
73		196
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	197	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		198
		199	static SV *on_next_submit;
		200
76	static unsigned int max_poll_time = 0;	201	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	202	static unsigned int max_poll_reqs = 0;
78		203
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	204	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	205	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		210
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	211	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		212
88	static unsigned int started, idle, wanted;	213	static unsigned int started, idle, wanted;
89		214
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 */	215	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	216	static mutex_t wrklock = X_MUTEX_INIT;
101		217
102	typedef struct worker {	218	typedef struct worker {
103	/* locked by wrklock */	219	/* locked by wrklock */
104	struct worker *prev, *next;	220	struct worker *prev, *next;
105		221
106	pthread_t tid;	222	thread_t tid;
107		223
108	/* locked by reslock, reqlock or wrklock */	224	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	225	bdb_req req; /* currently processed request */
110	void *dbuf;	226	void *dbuf;
111	DIR *dirp;	227	DIR *dirp;
112	} worker;	228	} worker;
113		229
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	230	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	242	}
127		243
128	static volatile unsigned int nreqs, nready, npending;	244	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	245	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	246	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	247	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		248
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	249	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	250	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	251	static cond_t reqwait = X_COND_INIT;
136		252
137	#if WORDACCESS_UNSAFE	253	#if WORDACCESS_UNSAFE
138		254
139	static unsigned int get_nready ()	255	static unsigned int get_nready (void)
140	{	256	{
141	unsigned int retval;	257	unsigned int retval;
142		258
143	LOCK (reqlock);	259	X_LOCK (reqlock);
144	retval = nready;	260	retval = nready;
145	UNLOCK (reqlock);	261	X_UNLOCK (reqlock);
146		262
147	return retval;	263	return retval;
148	}	264	}
149		265
150	static unsigned int get_npending ()	266	static unsigned int get_npending (void)
151	{	267	{
152	unsigned int retval;	268	unsigned int retval;
153		269
154	LOCK (reslock);	270	X_LOCK (reslock);
155	retval = npending;	271	retval = npending;
156	UNLOCK (reslock);	272	X_UNLOCK (reslock);
157		273
158	return retval;	274	return retval;
159	}	275	}
160		276
161	static unsigned int get_nthreads ()	277	static unsigned int get_nthreads (void)
162	{	278	{
163	unsigned int retval;	279	unsigned int retval;
164		280
165	LOCK (wrklock);	281	X_LOCK (wrklock);
166	retval = started;	282	retval = started;
167	UNLOCK (wrklock);	283	X_UNLOCK (wrklock);
168		284
169	return retval;	285	return retval;
170	}	286	}
171		287
172	#else	288	#else
…		…
181	* a somewhat faster data structure might be nice, but	297	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	298	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	299	* per shift, the most expensive operation.
184	*/	300	*/
185	typedef struct {	301	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	302	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	303	int size;
188	} reqq;	304	} reqq;
189		305
190	static reqq req_queue;	306	static reqq req_queue;
191	static reqq res_queue;	307	static reqq res_queue;
192		308
193	int reqq_push (reqq *q, aio_req req)	309	int reqq_push (reqq *q, bdb_req req)
194	{	310	{
195	int pri = req->pri;	311	int pri = req->pri;
196	req->next = 0;	312	req->next = 0;
197		313
198	if (q->qe[pri])	314	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	320	q->qe[pri] = q->qs[pri] = req;
205		321
206	return q->size++;	322	return q->size++;
207	}	323	}
208		324
209	aio_req reqq_shift (reqq *q)	325	bdb_req reqq_shift (reqq *q)
210	{	326	{
211	int pri;	327	int pri;
212		328
213	if (!q->size)	329	if (!q->size)
214	return 0;	330	return 0;
215		331
216	--q->size;	332	--q->size;
217		333
218	for (pri = NUM_PRI; pri--; )	334	for (pri = NUM_PRI; pri--; )
219	{	335	{
220	aio_req req = q->qs[pri];	336	bdb_req req = q->qs[pri];
221		337
222	if (req)	338	if (req)
223	{	339	{
224	if (!(q->qs[pri] = req->next))	340	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	341	q->qe[pri] = 0;
…		…
229	}	345	}
230		346
231	abort ();	347	abort ();
232	}	348	}
233		349
234	static int poll_cb ();	350	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	351	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);	352	static void req_cancel (bdb_req req);
238		353
239	static int req_invoke (aio_req req)	354	static int req_invoke (bdb_req req)
240	{	355	{
241	dSP;	356	dSP;
242		357
243	if (SvOK (req->callback))	358	if (req->callback)
244	{	359	{
245	ENTER;	360	ENTER;
246	SAVETMPS;	361	SAVETMPS;
247	PUSHMARK (SP);	362	PUSHMARK (SP);
248	EXTEND (SP, 1);
249		363
250	switch (req->type)	364	switch (req->type)
251	{	365	{
		366	case REQ_DB_CLOSE:
		367	SvREFCNT_dec (req->sv1);
		368	break;
		369
		370	case REQ_DB_GET:
		371	case REQ_DB_PGET:
		372	dbt_to_sv (req->sv3, &req->dbt3);
		373	break;
		374
		375	case REQ_C_GET:
		376	case REQ_C_PGET:
		377	dbt_to_sv (req->sv1, &req->dbt1);
		378	dbt_to_sv (req->sv2, &req->dbt2);
		379	dbt_to_sv (req->sv3, &req->dbt3);
		380	break;
		381
		382	case REQ_DB_PUT:
		383	case REQ_C_PUT:
		384	dbt_to_sv (0, &req->dbt1);
		385	dbt_to_sv (0, &req->dbt2);
		386	break;
		387
		388	case REQ_DB_KEY_RANGE:
		389	{
		390	AV *av = newAV ();
		391
		392	av_push (av, newSVnv (req->key_range.less));
		393	av_push (av, newSVnv (req->key_range.equal));
		394	av_push (av, newSVnv (req->key_range.greater));
		395
		396	SvREADONLY_off (req->sv1);
		397	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		398	SvREFCNT_dec (req->sv1);
		399	}
		400	break;
		401
		402	#if DB_VERSION_MINOR >= 3
		403	case REQ_SEQ_GET:
		404	SvREADONLY_off (req->sv1);
		405
		406	if (sizeof (IV) > 4)
		407	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		408	else
		409	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		410
		411	SvREFCNT_dec (req->sv1);
		412	break;
		413	#endif
252	}	414	}
		415
		416	errno = req->result;
253		417
254	PUTBACK;	418	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	419	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	420	SPAGAIN;
257		421
…		…
260	}	424	}
261		425
262	return !SvTRUE (ERRSV);	426	return !SvTRUE (ERRSV);
263	}	427	}
264		428
265	static void req_free (aio_req req)	429	static void req_free (bdb_req req)
266	{	430	{
		431	SvREFCNT_dec (req->callback);
		432
		433	SvREFCNT_dec (req->rsv1);
		434	SvREFCNT_dec (req->rsv2);
		435
		436	free (req->buf1);
		437	free (req->buf2);
		438	free (req->buf3);
		439
267	Safefree (req);	440	Safefree (req);
268	}	441	}
269		442
270	static void *aio_proc(void *arg);	443	#ifdef USE_SOCKETS_AS_HANDLES
		444	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		445	#else
		446	# define TO_SOCKET(x) (x)
		447	#endif
		448
		449	static void
		450	create_respipe (void)
		451	{
		452	#ifdef _WIN32
		453	int arg; /* argg */
		454	#endif
		455	int old_readfd = respipe [0];
		456
		457	if (respipe [1] >= 0)
		458	respipe_close (TO_SOCKET (respipe [1]));
		459
		460	#ifdef _WIN32
		461	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		462	#else
		463	if (pipe (respipe))
		464	#endif
		465	croak ("unable to initialize result pipe");
		466
		467	if (old_readfd >= 0)
		468	{
		469	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		470	croak ("unable to initialize result pipe(2)");
		471
		472	respipe_close (respipe [0]);
		473	respipe [0] = old_readfd;
		474	}
		475
		476	#ifdef _WIN32
		477	arg = 1;
		478	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		479	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		480	#else
		481	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		482	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		483	#endif
		484	croak ("unable to initialize result pipe(3)");
		485
		486	respipe_osf [0] = TO_SOCKET (respipe [0]);
		487	respipe_osf [1] = TO_SOCKET (respipe [1]);
		488	}
		489
		490	X_THREAD_PROC (bdb_proc);
271		491
272	static void start_thread (void)	492	static void start_thread (void)
273	{	493	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	494	worker *wrk = calloc (1, sizeof (worker));
278		495
279	if (!wrk)	496	if (!wrk)
280	croak ("unable to allocate worker thread data");	497	croak ("unable to allocate worker thread data");
281		498
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);	499	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	500	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	501	{
295	wrk->prev = &wrk_first;	502	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	503	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	504	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	505	wrk_first.next = wrk;
299	++started;	506	++started;
300	}	507	}
301	else	508	else
302	free (wrk);	509	free (wrk);
303		510
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	511	X_UNLOCK (wrklock);
306	}	512	}
307		513
308	static void maybe_start_thread ()	514	static void maybe_start_thread (void)
309	{	515	{
310	if (get_nthreads () >= wanted)	516	if (get_nthreads () >= wanted)
311	return;	517	return;
312		518
313	/* todo: maybe use idle here, but might be less exact */	519	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	521	return;
316		522
317	start_thread ();	523	start_thread ();
318	}	524	}
319		525
320	static void req_send (aio_req req)	526	static void req_send (bdb_req req)
321	{	527	{
		528	SV *wait_callback = 0;
		529
		530	if (on_next_submit)
		531	{
		532	dSP;
		533	SV *cb = sv_2mortal (on_next_submit);
		534
		535	on_next_submit = 0;
		536
		537	PUSHMARK (SP);
		538	PUTBACK;
		539	call_sv (cb, G_DISCARD | G_EVAL);
		540	SPAGAIN;
		541	}
		542
		543	// synthesize callback if none given
		544	if (!req->callback)
		545	{
		546	int count;
		547
		548	dSP;
		549	PUSHMARK (SP);
		550	PUTBACK;
		551	count = call_sv (prepare_cb, G_ARRAY);
		552	SPAGAIN;
		553
		554	if (count != 2)
		555	croak ("prepare callback must return exactly two values\n");
		556
		557	wait_callback = POPs;
		558	req->callback = SvREFCNT_inc (POPs);
		559	}
		560
322	++nreqs;	561	++nreqs;
323		562
324	LOCK (reqlock);	563	X_LOCK (reqlock);
325	++nready;	564	++nready;
326	reqq_push (&req_queue, req);	565	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	566	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	567	X_UNLOCK (reqlock);
329		568
330	maybe_start_thread ();	569	maybe_start_thread ();
		570
		571	if (wait_callback)
		572	{
		573	dSP;
		574	PUSHMARK (SP);
		575	PUTBACK;
		576	call_sv (wait_callback, G_DISCARD);
		577	}
331	}	578	}
332		579
333	static void end_thread (void)	580	static void end_thread (void)
334	{	581	{
335	aio_req req;	582	bdb_req req;
336		583
337	Newz (0, req, 1, aio_cb);	584	Newz (0, req, 1, bdb_cb);
338		585
339	req->type = REQ_QUIT;	586	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	587	req->pri = PRI_MAX + PRI_BIAS;
341		588
342	LOCK (reqlock);	589	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	590	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	591	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	592	X_UNLOCK (reqlock);
346		593
347	LOCK (wrklock);	594	X_LOCK (wrklock);
348	--started;	595	--started;
349	UNLOCK (wrklock);	596	X_UNLOCK (wrklock);
350	}	597	}
351		598
352	static void set_max_idle (int nthreads)	599	static void set_max_idle (int nthreads)
353	{	600	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	601	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	602	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	603	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	604	}
358		605
359	static void min_parallel (int nthreads)	606	static void min_parallel (int nthreads)
360	{	607	{
361	if (wanted < nthreads)	608	if (wanted < nthreads)
…		…
369		616
370	while (started > wanted)	617	while (started > wanted)
371	end_thread ();	618	end_thread ();
372	}	619	}
373		620
374	static void poll_wait ()	621	static void poll_wait (void)
375	{	622	{
376	fd_set rfd;	623	fd_set rfd;
377		624
378	while (nreqs)	625	while (nreqs)
379	{	626	{
380	int size;	627	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	628	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	629	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	630	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		631
385	if (size)	632	if (size)
386	return;	633	return;
387		634
388	maybe_start_thread ();	635	maybe_start_thread ();
389		636
390	FD_ZERO(&rfd);	637	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	638	FD_SET (respipe [0], &rfd);
392		639
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	640	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	641	}
395	}	642	}
396		643
397	static int poll_cb ()	644	static int poll_cb (void)
398	{	645	{
399	dSP;	646	dSP;
400	int count = 0;	647	int count = 0;
401	int maxreqs = max_poll_reqs;	648	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	649	int do_croak = 0;
403	struct timeval tv_start, tv_now;	650	struct timeval tv_start, tv_now;
404	aio_req req;	651	bdb_req req;
405		652
406	if (max_poll_time)	653	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	654	gettimeofday (&tv_start, 0);
408		655
409	for (;;)	656	for (;;)
410	{	657	{
411	for (;;)	658	for (;;)
412	{	659	{
413	maybe_start_thread ();	660	maybe_start_thread ();
414		661
415	LOCK (reslock);	662	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	663	req = reqq_shift (&res_queue);
417		664
418	if (req)	665	if (req)
419	{	666	{
420	--npending;	667	--npending;
421		668
422	if (!res_queue.size)	669	if (!res_queue.size)
423	{	670	{
424	/* read any signals sent by the worker threads */	671	/* read any signals sent by the worker threads */
425	char buf [4];	672	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	673	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	674	;
428	}	675	}
429	}	676	}
430		677
431	UNLOCK (reslock);	678	X_UNLOCK (reslock);
432		679
433	if (!req)	680	if (!req)
434	break;	681	break;
435		682
436	--nreqs;	683	--nreqs;
…		…
466	}	713	}
467		714
468	return count;	715	return count;
469	}	716	}
470		717
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	/*****************************************************************************/	718	/*****************************************************************************/
484		719
485	static void *aio_proc (void *thr_arg)	720	static void
		721	bdb_request (bdb_req req)
486	{	722	{
		723	switch (req->type)
		724	{
		725	case REQ_ENV_OPEN:
		726	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		727	break;
		728
		729	case REQ_ENV_CLOSE:
		730	req->result = req->env->close (req->env, req->uint1);
		731	break;
		732
		733	case REQ_ENV_TXN_CHECKPOINT:
		734	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		735	break;
		736
		737	case REQ_ENV_LOCK_DETECT:
		738	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		739	break;
		740
		741	case REQ_ENV_MEMP_SYNC:
		742	req->result = req->env->memp_sync (req->env, 0);
		743	break;
		744
		745	case REQ_ENV_MEMP_TRICKLE:
		746	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		747	break;
		748
		749	case REQ_ENV_DBREMOVE:
		750	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		751	break;
		752
		753	case REQ_ENV_DBRENAME:
		754	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		755	break;
		756
		757	case REQ_DB_OPEN:
		758	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		759	break;
		760
		761	case REQ_DB_CLOSE:
		762	req->result = req->db->close (req->db, req->uint1);
		763	break;
		764
		765	#if DB_VERSION_MINOR >= 4
		766	case REQ_DB_COMPACT:
		767	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		768	break;
		769	#endif
		770
		771	case REQ_DB_SYNC:
		772	req->result = req->db->sync (req->db, req->uint1);
		773	break;
		774
		775	case REQ_DB_UPGRADE:
		776	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		777	break;
		778
		779	case REQ_DB_PUT:
		780	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		781	break;
		782
		783	#if DB_VERSION_MINOR >= 6
		784	case REQ_DB_EXISTS:
		785	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		786	break;
		787	#endif
		788	case REQ_DB_GET:
		789	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		790	break;
		791
		792	case REQ_DB_PGET:
		793	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		794	break;
		795
		796	case REQ_DB_DEL:
		797	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		798	break;
		799
		800	case REQ_DB_KEY_RANGE:
		801	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		802	break;
		803
		804	case REQ_TXN_COMMIT:
		805	req->result = req->txn->commit (req->txn, req->uint1);
		806	break;
		807
		808	case REQ_TXN_ABORT:
		809	req->result = req->txn->abort (req->txn);
		810	break;
		811
		812	case REQ_TXN_FINISH:
		813	if (req->txn->flags & TXN_DEADLOCK)
		814	{
		815	req->result = req->txn->abort (req->txn);
		816	if (!req->result)
		817	req->result = DB_LOCK_DEADLOCK;
		818	}
		819	else
		820	req->result = req->txn->commit (req->txn, req->uint1);
		821	break;
		822
		823	case REQ_C_CLOSE:
		824	req->result = req->dbc->c_close (req->dbc);
		825	break;
		826
		827	case REQ_C_COUNT:
		828	{
		829	db_recno_t recno;
		830	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		831	req->uv1 = recno;
		832	}
		833	break;
		834
		835	case REQ_C_PUT:
		836	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		837	break;
		838
		839	case REQ_C_GET:
		840	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		841	break;
		842
		843	case REQ_C_PGET:
		844	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		845	break;
		846
		847	case REQ_C_DEL:
		848	req->result = req->dbc->c_del (req->dbc, req->uint1);
		849	break;
		850
		851	#if DB_VERSION_MINOR >= 3
		852	case REQ_SEQ_OPEN:
		853	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		854	break;
		855
		856	case REQ_SEQ_CLOSE:
		857	req->result = req->seq->close (req->seq, req->uint1);
		858	break;
		859
		860	case REQ_SEQ_GET:
		861	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		862	break;
		863
		864	case REQ_SEQ_REMOVE:
		865	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		866	break;
		867	#endif
		868
		869	default:
		870	req->result = ENOSYS;
		871	break;
		872	}
		873
		874	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		875	req->txn->flags |= TXN_DEADLOCK;
		876	}
		877
		878	X_THREAD_PROC (bdb_proc)
		879	{
487	aio_req req;	880	bdb_req req;
488	struct timespec ts;	881	struct timespec ts;
489	worker *self = (worker *)thr_arg;	882	worker *self = (worker *)thr_arg;
490		883
491	/* try to distribute timeouts somewhat evenly */	884	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	885	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		886
495	for (;;)	887	for (;;)
496	{	888	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	889	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		890
499	LOCK (reqlock);	891	X_LOCK (reqlock);
500		892
501	for (;;)	893	for (;;)
502	{	894	{
503	self->req = req = reqq_shift (&req_queue);	895	self->req = req = reqq_shift (&req_queue);
504		896
505	if (req)	897	if (req)
506	break;	898	break;
507		899
508	++idle;	900	++idle;
509		901
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	902	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	903	== ETIMEDOUT)
512	{	904	{
513	if (idle > max_idle)	905	if (idle > max_idle)
514	{	906	{
515	--idle;	907	--idle;
516	UNLOCK (reqlock);	908	X_UNLOCK (reqlock);
517	LOCK (wrklock);	909	X_LOCK (wrklock);
518	--started;	910	--started;
519	UNLOCK (wrklock);	911	X_UNLOCK (wrklock);
520	goto quit;	912	goto quit;
521	}	913	}
522		914
523	/* we are allowed to idle, so do so without any timeout */	915	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	916	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	917	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	918	}
527		919
528	--idle;	920	--idle;
529	}	921	}
530		922
531	--nready;	923	--nready;
532		924
533	UNLOCK (reqlock);	925	X_UNLOCK (reqlock);
534
535	errno = 0; /* strictly unnecessary */
536		926
537	switch (req->type)	927	if (req->type == REQ_QUIT)
538	{
539	case REQ_QUIT:
540	goto quit;	928	goto quit;
541		929
542	default:	930	bdb_request (req);
543	//req->result = ENOSYS;
544	break;
545	}
546		931
547	//req->errorno = errno;
548
549	LOCK (reslock);	932	X_LOCK (reslock);
550		933
551	++npending;	934	++npending;
552		935
553	if (!reqq_push (&res_queue, req))	936	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	937	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	938	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		939
557	self->req = 0;	940	self->req = 0;
558	worker_clear (self);	941	worker_clear (self);
559		942
560	UNLOCK (reslock);	943	X_UNLOCK (reslock);
561	}	944	}
562		945
563	quit:	946	quit:
564	LOCK (wrklock);	947	X_LOCK (wrklock);
565	worker_free (self);	948	worker_free (self);
566	UNLOCK (wrklock);	949	X_UNLOCK (wrklock);
567		950
568	return 0;	951	return 0;
569	}	952	}
570		953
571	/*****************************************************************************/	954	/*****************************************************************************/
572		955
573	static void atfork_prepare (void)	956	static void atfork_prepare (void)
574	{	957	{
575	LOCK (wrklock);	958	X_LOCK (wrklock);
576	LOCK (reqlock);	959	X_LOCK (reqlock);
577	LOCK (reslock);	960	X_LOCK (reslock);
578	}	961	}
579		962
580	static void atfork_parent (void)	963	static void atfork_parent (void)
581	{	964	{
582	UNLOCK (reslock);	965	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	966	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	967	X_UNLOCK (wrklock);
585	}	968	}
586		969
587	static void atfork_child (void)	970	static void atfork_child (void)
588	{	971	{
589	aio_req prv;	972	bdb_req prv;
590		973
591	while (prv = reqq_shift (&req_queue))	974	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	975	req_free (prv);
593		976
594	while (prv = reqq_shift (&res_queue))	977	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	992	idle = 0;
610	nreqs = 0;	993	nreqs = 0;
611	nready = 0;	994	nready = 0;
612	npending = 0;	995	npending = 0;
613		996
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	997	create_respipe ();
617		998
618	atfork_parent ();	999	atfork_parent ();
619	}	1000	}
620		1001
621	#define dREQ \	1002	#define dREQ(reqtype,rsvcnt) \
622	aio_req req; \	1003	bdb_req req; \
623	int req_pri = next_pri; \	1004	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	1005	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	1006	\
626	if (SvOK (callback) && !SvROK (callback)) \	1007	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	1008	croak ("callback has illegal type or extra arguments"); \
628	\	1009	\
629	Newz (0, req, 1, aio_cb); \	1010	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	1011	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	1012	croak ("out of memory during bdb_req allocation"); \
632	\	1013	\
633	req->callback = newSVsv (callback); \	1014	req->callback = SvREFCNT_inc (cb); \
		1015	req->type = (reqtype); \
634	req->pri = req_pri	1016	req->pri = req_pri; \
		1017	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1018	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1019	(void)0;
635		1020
636	#define REQ_SEND \	1021	#define REQ_SEND \
637	req_send (req); \	1022	req_send (req)
		1023
		1024	#define SvPTR(var, arg, type, class, nullok) \
		1025	if (!SvOK (arg)) \
		1026	{ \
		1027	if (nullok != 1) \
		1028	croak (# var " must be a " # class " object, not undef"); \
638	\	1029	\
639	if (GIMME_V != G_VOID) \	1030	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1031	} \
641		1032	else if (sv_derived_from ((arg), # class)) \
		1033	{ \
		1034	IV tmp = SvIV ((SV*) SvRV (arg)); \
		1035	(var) = INT2PTR (type, tmp); \
		1036	if (!var && nullok != 2) \
		1037	croak (# var " is not a valid " # class " object anymore"); \
		1038	} \
		1039	else \
		1040	croak (# var " is not of type " # class);
		1041
		1042	static void
		1043	ptr_nuke (SV *sv)
		1044	{
		1045	assert (SvROK (sv));
		1046	sv_setiv (SvRV (sv), 0);
		1047	}
		1048
		1049	static int
		1050	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1051	{
		1052	if (*mg->mg_ptr == '!') // should always be the case
		1053	if (-30999 <= errno && errno <= -30800)
		1054	{
		1055	sv_setnv (sv, (NV)errno);
		1056	sv_setpv (sv, db_strerror (errno));
		1057	SvNOK_on (sv); /* what a wonderful hack! */
		1058	// ^^^ copied from perl sources
		1059	return 0;
		1060	}
		1061
		1062	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1063	}
		1064
		1065	static MGVTBL vtbl_errno;
		1066
		1067	// this wonderful hack :( patches perl's $! variable to support our errno values
		1068	static void
		1069	patch_errno (void)
		1070	{
		1071	SV *sv;
		1072	MAGIC *mg;
		1073
		1074	if (!(sv = get_sv ("!", 1)))
		1075	return;
		1076
		1077	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1078	return;
		1079
		1080	if (mg->mg_virtual != &PL_vtbl_sv)
		1081	return;
		1082
		1083	vtbl_errno = PL_vtbl_sv;
		1084	vtbl_errno.svt_get = errno_get;
		1085	mg->mg_virtual = &vtbl_errno;
		1086	}
		1087
		1088	#if __GNUC__ >= 4
		1089	# define noinline __attribute__ ((noinline))
		1090	#else
		1091	# define noinline
		1092	#endif
		1093
		1094	static noinline SV *
		1095	pop_callback (I32 *ritems, SV *sv)
		1096	{
		1097	if (SvROK (sv))
		1098	{
		1099	HV *st;
		1100	GV *gvp;
		1101	CV *cv;
		1102	const char *name;
		1103
		1104	/* forgive me */
		1105	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1106	&& (st = SvSTASH (SvRV (sv)))
		1107	&& (name = HvNAME_get (st))
		1108	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1109	return 0;
		1110
		1111	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1112	{
		1113	--*ritems;
		1114	return (SV *)cv;
		1115	}
		1116	}
		1117
		1118	return 0;
		1119	}
		1120
		1121	/* stupid windoes defined CALLBACK as well */
		1122	#undef CALLBACK
		1123	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1124
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1125	MODULE = BDB PACKAGE = BDB
643		1126
644	PROTOTYPES: ENABLE	1127	PROTOTYPES: ENABLE
645		1128
646	BOOT:	1129	BOOT:
647	{	1130	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1131	HV *stash = gv_stashpv ("BDB", 1);
649		1132
650	create_pipe ();	1133	static const struct {
		1134	const char *name;
		1135	IV iv;
		1136	} *civ, const_iv[] = {
		1137	#define const_iv(name) { # name, (IV)DB_ ## name },
		1138	const_iv (RPCCLIENT)
		1139	const_iv (INIT_CDB)
		1140	const_iv (INIT_LOCK)
		1141	const_iv (INIT_LOG)
		1142	const_iv (INIT_MPOOL)
		1143	const_iv (INIT_REP)
		1144	const_iv (INIT_TXN)
		1145	const_iv (RECOVER)
		1146	const_iv (INIT_TXN)
		1147	const_iv (RECOVER_FATAL)
		1148	const_iv (CREATE)
		1149	const_iv (RDONLY)
		1150	const_iv (USE_ENVIRON)
		1151	const_iv (USE_ENVIRON_ROOT)
		1152	const_iv (LOCKDOWN)
		1153	const_iv (PRIVATE)
		1154	const_iv (SYSTEM_MEM)
		1155	const_iv (AUTO_COMMIT)
		1156	const_iv (CDB_ALLDB)
		1157	const_iv (DIRECT_DB)
		1158	const_iv (NOLOCKING)
		1159	const_iv (NOMMAP)
		1160	const_iv (NOPANIC)
		1161	const_iv (OVERWRITE)
		1162	const_iv (PANIC_ENVIRONMENT)
		1163	const_iv (REGION_INIT)
		1164	const_iv (TIME_NOTGRANTED)
		1165	const_iv (TXN_NOSYNC)
		1166	const_iv (TXN_NOT_DURABLE)
		1167	const_iv (TXN_WRITE_NOSYNC)
		1168	const_iv (WRITECURSOR)
		1169	const_iv (YIELDCPU)
		1170	const_iv (ENCRYPT_AES)
		1171	const_iv (XA_CREATE)
		1172	const_iv (BTREE)
		1173	const_iv (HASH)
		1174	const_iv (QUEUE)
		1175	const_iv (RECNO)
		1176	const_iv (UNKNOWN)
		1177	const_iv (EXCL)
		1178	const_iv (TRUNCATE)
		1179	const_iv (NOSYNC)
		1180	const_iv (CHKSUM)
		1181	const_iv (ENCRYPT)
		1182	const_iv (DUP)
		1183	const_iv (DUPSORT)
		1184	const_iv (RECNUM)
		1185	const_iv (RENUMBER)
		1186	const_iv (REVSPLITOFF)
		1187	const_iv (CONSUME)
		1188	const_iv (CONSUME_WAIT)
		1189	const_iv (GET_BOTH)
		1190	const_iv (GET_BOTH_RANGE)
		1191	//const_iv (SET_RECNO)
		1192	//const_iv (MULTIPLE)
		1193	const_iv (SNAPSHOT)
		1194	const_iv (JOIN_ITEM)
		1195	const_iv (JOIN_NOSORT)
		1196	const_iv (RMW)
		1197
		1198	const_iv (NOTFOUND)
		1199	const_iv (KEYEMPTY)
		1200	const_iv (LOCK_DEADLOCK)
		1201	const_iv (LOCK_NOTGRANTED)
		1202	const_iv (RUNRECOVERY)
		1203	const_iv (OLD_VERSION)
		1204	const_iv (REP_HANDLE_DEAD)
		1205	const_iv (SECONDARY_BAD)
		1206
		1207	const_iv (APPEND)
		1208	const_iv (NODUPDATA)
		1209	const_iv (NOOVERWRITE)
		1210
		1211	const_iv (TXN_NOWAIT)
		1212	const_iv (TXN_SYNC)
		1213
		1214	const_iv (SET_LOCK_TIMEOUT)
		1215	const_iv (SET_TXN_TIMEOUT)
		1216
		1217	const_iv (FIRST)
		1218	const_iv (NEXT)
		1219	const_iv (NEXT_DUP)
		1220	const_iv (NEXT_NODUP)
		1221	const_iv (PREV)
		1222	const_iv (PREV_NODUP)
		1223	const_iv (SET)
		1224	const_iv (SET_RANGE)
		1225	const_iv (LAST)
		1226	const_iv (BEFORE)
		1227	const_iv (AFTER)
		1228	const_iv (CURRENT)
		1229	const_iv (KEYFIRST)
		1230	const_iv (KEYLAST)
		1231	const_iv (NODUPDATA)
		1232
		1233	const_iv (FORCE)
		1234
		1235	const_iv (LOCK_DEFAULT)
		1236	const_iv (LOCK_EXPIRE)
		1237	const_iv (LOCK_MAXLOCKS)
		1238	const_iv (LOCK_MINLOCKS)
		1239	const_iv (LOCK_MINWRITE)
		1240	const_iv (LOCK_OLDEST)
		1241	const_iv (LOCK_RANDOM)
		1242	const_iv (LOCK_YOUNGEST)
		1243
		1244	const_iv (DONOTINDEX)
		1245	const_iv (KEYEMPTY )
		1246	const_iv (KEYEXIST )
		1247	const_iv (LOCK_DEADLOCK)
		1248	const_iv (LOCK_NOTGRANTED)
		1249	const_iv (NOSERVER)
		1250	const_iv (NOSERVER_HOME)
		1251	const_iv (NOSERVER_ID)
		1252	const_iv (NOTFOUND)
		1253	const_iv (PAGE_NOTFOUND)
		1254	const_iv (REP_DUPMASTER)
		1255	const_iv (REP_HANDLE_DEAD)
		1256	const_iv (REP_HOLDELECTION)
		1257	const_iv (REP_ISPERM)
		1258	const_iv (REP_NEWMASTER)
		1259	const_iv (REP_NEWSITE)
		1260	const_iv (REP_NOTPERM)
		1261	const_iv (REP_UNAVAIL)
		1262	const_iv (RUNRECOVERY)
		1263	const_iv (SECONDARY_BAD)
		1264	const_iv (VERIFY_BAD)
		1265
		1266	const_iv (VERB_DEADLOCK)
		1267	const_iv (VERB_RECOVERY)
		1268	const_iv (VERB_REPLICATION)
		1269	const_iv (VERB_WAITSFOR)
		1270
		1271	const_iv (VERSION_MAJOR)
		1272	const_iv (VERSION_MINOR)
		1273	const_iv (VERSION_PATCH)
		1274	#if DB_VERSION_MINOR >= 3
		1275	const_iv (INORDER)
		1276	const_iv (LOCK_MAXWRITE)
		1277	const_iv (SEQ_DEC)
		1278	const_iv (SEQ_INC)
		1279	const_iv (SEQ_WRAP)
		1280	const_iv (BUFFER_SMALL)
		1281	const_iv (LOG_BUFFER_FULL)
		1282	const_iv (VERSION_MISMATCH)
		1283	#endif
		1284	#if DB_VERSION_MINOR >= 4
		1285	const_iv (REGISTER)
		1286	const_iv (DSYNC_DB)
		1287	const_iv (READ_COMMITTED)
		1288	const_iv (READ_UNCOMMITTED)
		1289	const_iv (REP_IGNORE)
		1290	const_iv (REP_LOCKOUT)
		1291	const_iv (REP_JOIN_FAILURE)
		1292	const_iv (FREE_SPACE)
		1293	const_iv (FREELIST_ONLY)
		1294	const_iv (VERB_REGISTER)
		1295	#endif
		1296	#if DB_VERSION_MINOR >= 5
		1297	const_iv (MULTIVERSION)
		1298	const_iv (TXN_SNAPSHOT)
		1299	#endif
		1300	#if DB_VERSION_MINOR >= 6
		1301	const_iv (PREV_DUP)
		1302	const_iv (PRIORITY_UNCHANGED)
		1303	const_iv (PRIORITY_VERY_LOW)
		1304	const_iv (PRIORITY_LOW)
		1305	const_iv (PRIORITY_DEFAULT)
		1306	const_iv (PRIORITY_HIGH)
		1307	const_iv (PRIORITY_VERY_HIGH)
		1308	#endif
		1309	#if DB_VERSION_MINOR >= 7
		1310	const_iv (LOG_DIRECT)
		1311	const_iv (LOG_DSYNC)
		1312	const_iv (LOG_AUTO_REMOVE)
		1313	const_iv (LOG_IN_MEMORY)
		1314	const_iv (LOG_ZERO)
		1315	#else
		1316	const_iv (DIRECT_LOG)
		1317	const_iv (LOG_AUTOREMOVE)
		1318	# if DB_VERSION_MINOR >= 3
		1319	const_iv (DSYNC_LOG)
		1320	const_iv (LOG_INMEMORY)
		1321	# endif
		1322	#endif
		1323	};
		1324
		1325	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1326	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1327
		1328	{
		1329	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1330	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1331
		1332	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1333	}
		1334
		1335	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1336
		1337	create_respipe ();
		1338
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1339	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1340	patch_errno ();
652	}	1341	}
653		1342
654	void	1343	void
655	max_poll_reqs (int nreqs)	1344	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1345	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1374	max_outstanding = maxreqs;
686	OUTPUT:	1375	OUTPUT:
687	RETVAL	1376	RETVAL
688		1377
689	int	1378	int
690	bdbreq_pri (int pri = 0)	1379	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1380	PROTOTYPE: ;$
692	CODE:	1381	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1382	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1383	if (items > 0)
695	{	1384	{
…		…
699	}	1388	}
700	OUTPUT:	1389	OUTPUT:
701	RETVAL	1390	RETVAL
702		1391
703	void	1392	void
704	bdbreq_nice (int nice = 0)	1393	dbreq_nice (int nice = 0)
705	CODE:	1394	CODE:
706	nice = next_pri - nice;	1395	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1396	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1397	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1398	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1406	poll_wait ();
718	poll_cb ();	1407	poll_cb ();
719	}	1408	}
720		1409
721	int	1410	int
722	poll()	1411	poll ()
723	PROTOTYPE:	1412	PROTOTYPE:
724	CODE:	1413	CODE:
725	poll_wait ();	1414	poll_wait ();
726	RETVAL = poll_cb ();	1415	RETVAL = poll_cb ();
727	OUTPUT:	1416	OUTPUT:
728	RETVAL	1417	RETVAL
729		1418
730	int	1419	int
731	poll_fileno()	1420	poll_fileno ()
732	PROTOTYPE:	1421	PROTOTYPE:
733	CODE:	1422	CODE:
734	RETVAL = respipe [0];	1423	RETVAL = respipe [0];
735	OUTPUT:	1424	OUTPUT:
736	RETVAL	1425	RETVAL
737		1426
738	int	1427	int
739	poll_cb(...)	1428	poll_cb (...)
740	PROTOTYPE:	1429	PROTOTYPE:
741	CODE:	1430	CODE:
742	RETVAL = poll_cb ();	1431	RETVAL = poll_cb ();
743	OUTPUT:	1432	OUTPUT:
744	RETVAL	1433	RETVAL
745		1434
746	void	1435	void
747	poll_wait()	1436	poll_wait ()
748	PROTOTYPE:	1437	PROTOTYPE:
749	CODE:	1438	CODE:
750	poll_wait ();	1439	poll_wait ();
751		1440
752	int	1441	int
753	nreqs()	1442	nreqs ()
754	PROTOTYPE:	1443	PROTOTYPE:
755	CODE:	1444	CODE:
756	RETVAL = nreqs;	1445	RETVAL = nreqs;
757	OUTPUT:	1446	OUTPUT:
758	RETVAL	1447	RETVAL
759		1448
760	int	1449	int
761	nready()	1450	nready ()
762	PROTOTYPE:	1451	PROTOTYPE:
763	CODE:	1452	CODE:
764	RETVAL = get_nready ();	1453	RETVAL = get_nready ();
765	OUTPUT:	1454	OUTPUT:
766	RETVAL	1455	RETVAL
767		1456
768	int	1457	int
769	npending()	1458	npending ()
770	PROTOTYPE:	1459	PROTOTYPE:
771	CODE:	1460	CODE:
772	RETVAL = get_npending ();	1461	RETVAL = get_npending ();
773	OUTPUT:	1462	OUTPUT:
774	RETVAL	1463	RETVAL
775		1464
776	int	1465	int
777	nthreads()	1466	nthreads ()
778	PROTOTYPE:	1467	PROTOTYPE:
779	CODE:	1468	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1469	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1470	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1471	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1472	OUTPUT:
784	RETVAL	1473	RETVAL
785		1474
		1475	void
		1476	set_sync_prepare (SV *cb)
		1477	PROTOTYPE: &
		1478	CODE:
		1479	SvREFCNT_dec (prepare_cb);
		1480	prepare_cb = newSVsv (cb);
786		1481
		1482	char *
		1483	strerror (int errorno = errno)
		1484	PROTOTYPE: ;$
		1485	CODE:
		1486	RETVAL = db_strerror (errorno);
		1487	OUTPUT:
		1488	RETVAL
		1489
		1490	void _on_next_submit (SV *cb)
		1491	CODE:
		1492	SvREFCNT_dec (on_next_submit);
		1493	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1494
		1495	DB_ENV *
		1496	db_env_create (U32 env_flags = 0)
		1497	CODE:
		1498	{
		1499	errno = db_env_create (&RETVAL, env_flags);
		1500	if (errno)
		1501	croak ("db_env_create: %s", db_strerror (errno));
		1502
		1503	if (0)
		1504	{
		1505	RETVAL->set_errcall (RETVAL, debug_errcall);
		1506	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1507	}
		1508	}
		1509	OUTPUT:
		1510	RETVAL
		1511
		1512	void
		1513	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1514	PREINIT:
		1515	CALLBACK
		1516	CODE:
		1517	{
		1518	dREQ (REQ_ENV_OPEN, 1);
		1519	req->env = env;
		1520	req->uint1 = open_flags | DB_THREAD;
		1521	req->int1 = mode;
		1522	req->buf1 = strdup_ornull (db_home);
		1523	REQ_SEND;
		1524	}
		1525
		1526	void
		1527	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1528	PREINIT:
		1529	CALLBACK
		1530	CODE:
		1531	{
		1532	dREQ (REQ_ENV_CLOSE, 1);
		1533	req->env = env;
		1534	req->uint1 = flags;
		1535	REQ_SEND;
		1536	ptr_nuke (ST (0));
		1537	}
		1538
		1539	void
		1540	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1541	PREINIT:
		1542	CALLBACK
		1543	CODE:
		1544	{
		1545	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1546	req->env = env;
		1547	req->uint1 = kbyte;
		1548	req->int1 = min;
		1549	req->uint2 = flags;
		1550	REQ_SEND;
		1551	}
		1552
		1553	void
		1554	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1555	PREINIT:
		1556	CALLBACK
		1557	CODE:
		1558	{
		1559	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1560	req->env = env;
		1561	req->uint1 = flags;
		1562	req->uint2 = atype;
		1563	/* req->int2 = 0; dummy */
		1564	REQ_SEND;
		1565	}
		1566
		1567	void
		1568	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1569	PREINIT:
		1570	CALLBACK
		1571	CODE:
		1572	{
		1573	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1574	req->env = env;
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1580	PREINIT:
		1581	CALLBACK
		1582	CODE:
		1583	{
		1584	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1585	req->env = env;
		1586	req->int1 = percent;
		1587	REQ_SEND;
		1588	}
		1589
		1590	void
		1591	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1592	PREINIT:
		1593	CALLBACK
		1594	CODE:
		1595	{
		1596	dREQ (REQ_ENV_DBREMOVE, 2);
		1597	req->env = env;
		1598	req->buf1 = strdup_ornull (file);
		1599	req->buf2 = strdup_ornull (database);
		1600	req->uint1 = flags;
		1601	REQ_SEND;
		1602	}
		1603
		1604	void
		1605	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)
		1606	PREINIT:
		1607	CALLBACK
		1608	CODE:
		1609	{
		1610	dREQ (REQ_ENV_DBRENAME, 2);
		1611	req->env = env;
		1612	req->buf1 = strdup_ornull (file);
		1613	req->buf2 = strdup_ornull (database);
		1614	req->buf3 = strdup_ornull (newname);
		1615	req->uint1 = flags;
		1616	REQ_SEND;
		1617	}
		1618
		1619	DB *
		1620	db_create (DB_ENV *env = 0, U32 flags = 0)
		1621	CODE:
		1622	{
		1623	errno = db_create (&RETVAL, env, flags);
		1624	if (errno)
		1625	croak ("db_create: %s", db_strerror (errno));
		1626
		1627	if (RETVAL)
		1628	RETVAL->app_private = (void *)newSVsv (ST (0));
		1629	}
		1630	OUTPUT:
		1631	RETVAL
		1632
		1633	void
		1634	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1635	PREINIT:
		1636	CALLBACK
		1637	CODE:
		1638	{
		1639	dREQ (REQ_DB_OPEN, 2);
		1640	req->db = db;
		1641	req->txn = txnid;
		1642	req->buf1 = strdup_ornull (file);
		1643	req->buf2 = strdup_ornull (database);
		1644	req->int1 = type;
		1645	req->uint1 = flags | DB_THREAD;
		1646	req->int2 = mode;
		1647	REQ_SEND;
		1648	}
		1649
		1650	void
		1651	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1652	PREINIT:
		1653	CALLBACK
		1654	CODE:
		1655	{
		1656	dREQ (REQ_DB_CLOSE, 1);
		1657	req->db = db;
		1658	req->uint1 = flags;
		1659	req->sv1 = (SV *)db->app_private;
		1660	REQ_SEND;
		1661	ptr_nuke (ST (0));
		1662	}
		1663
		1664	#if DB_VERSION_MINOR >= 4
		1665
		1666	void
		1667	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)
		1668	PREINIT:
		1669	CALLBACK
		1670	CODE:
		1671	{
		1672	dREQ (REQ_DB_COMPACT, 2);
		1673	req->db = db;
		1674	req->txn = txn;
		1675	sv_to_dbt (&req->dbt1, start);
		1676	sv_to_dbt (&req->dbt2, stop);
		1677	req->uint1 = flags;
		1678	REQ_SEND;
		1679	}
		1680
		1681	#endif
		1682
		1683	void
		1684	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1685	PREINIT:
		1686	CALLBACK
		1687	CODE:
		1688	{
		1689	dREQ (REQ_DB_SYNC, 1);
		1690	req->db = db;
		1691	req->uint1 = flags;
		1692	REQ_SEND;
		1693	}
		1694
		1695	void
		1696	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1697	PREINIT:
		1698	CALLBACK
		1699	CODE:
		1700	{
		1701	dREQ (REQ_DB_SYNC, 1);
		1702	req->db = db;
		1703	req->buf1 = strdup (file);
		1704	req->uint1 = flags;
		1705	REQ_SEND;
		1706	}
		1707
		1708	void
		1709	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1710	PREINIT:
		1711	CALLBACK
		1712	CODE:
		1713	{
		1714	dREQ (REQ_DB_KEY_RANGE, 2);
		1715	req->db = db;
		1716	req->txn = txn;
		1717	sv_to_dbt (&req->dbt1, key);
		1718	req->uint1 = flags;
		1719	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1720	REQ_SEND;
		1721	}
		1722
		1723	void
		1724	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1725	PREINIT:
		1726	CALLBACK
		1727	CODE:
		1728	{
		1729	dREQ (REQ_DB_PUT, 2);
		1730	req->db = db;
		1731	req->txn = txn;
		1732	sv_to_dbt (&req->dbt1, key);
		1733	sv_to_dbt (&req->dbt2, data);
		1734	req->uint1 = flags;
		1735	REQ_SEND;
		1736	}
		1737
		1738	#if DB_VERSION_MINOR >= 6
		1739
		1740	void
		1741	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1742	PREINIT:
		1743	CALLBACK
		1744	CODE:
		1745	{
		1746	dREQ (REQ_DB_EXISTS, 2);
		1747	req->db = db;
		1748	req->txn = txn;
		1749	req->uint1 = flags;
		1750	sv_to_dbt (&req->dbt1, key);
		1751	REQ_SEND;
		1752	}
		1753
		1754	#endif
		1755
		1756	void
		1757	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1758	PREINIT:
		1759	CALLBACK
		1760	CODE:
		1761	if (SvREADONLY (data))
		1762	croak ("can't modify read-only data scalar in db_get");
		1763	{
		1764	dREQ (REQ_DB_GET, 2);
		1765	req->db = db;
		1766	req->txn = txn;
		1767	req->uint1 = flags;
		1768	sv_to_dbt (&req->dbt1, key);
		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_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1776	PREINIT:
		1777	CALLBACK
		1778	CODE:
		1779	if (SvREADONLY (data))
		1780	croak ("can't modify read-only data scalar in db_pget");
		1781	{
		1782	dREQ (REQ_DB_PGET, 2);
		1783	req->db = db;
		1784	req->txn = txn;
		1785	req->uint1 = flags;
		1786	sv_to_dbt (&req->dbt1, key);
		1787	sv_to_dbt (&req->dbt2, pkey);
		1788	req->dbt3.flags = DB_DBT_MALLOC;
		1789	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1790	REQ_SEND;
		1791	}
		1792
		1793	void
		1794	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1795	PREINIT:
		1796	CALLBACK
		1797	CODE:
		1798	{
		1799	dREQ (REQ_DB_DEL, 2);
		1800	req->db = db;
		1801	req->txn = txn;
		1802	req->uint1 = flags;
		1803	sv_to_dbt (&req->dbt1, key);
		1804	REQ_SEND;
		1805	}
		1806
		1807	void
		1808	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1809	PREINIT:
		1810	CALLBACK
		1811	CODE:
		1812	{
		1813	dREQ (REQ_TXN_COMMIT, 1);
		1814	req->txn = txn;
		1815	req->uint1 = flags;
		1816	REQ_SEND;
		1817	ptr_nuke (ST (0));
		1818	}
		1819
		1820	void
		1821	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1822	PREINIT:
		1823	CALLBACK
		1824	CODE:
		1825	{
		1826	dREQ (REQ_TXN_ABORT, 1);
		1827	req->txn = txn;
		1828	REQ_SEND;
		1829	ptr_nuke (ST (0));
		1830	}
		1831
		1832	void
		1833	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1834	PREINIT:
		1835	CALLBACK
		1836	CODE:
		1837	{
		1838	dREQ (REQ_TXN_FINISH, 1);
		1839	req->txn = txn;
		1840	req->uint1 = flags;
		1841	REQ_SEND;
		1842	ptr_nuke (ST (0));
		1843	}
		1844
		1845	void
		1846	db_c_close (DBC *dbc, SV *callback = 0)
		1847	PREINIT:
		1848	CALLBACK
		1849	CODE:
		1850	{
		1851	dREQ (REQ_C_CLOSE, 1);
		1852	req->dbc = dbc;
		1853	REQ_SEND;
		1854	ptr_nuke (ST (0));
		1855	}
		1856
		1857	void
		1858	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1859	PREINIT:
		1860	CALLBACK
		1861	CODE:
		1862	{
		1863	dREQ (REQ_C_COUNT, 1);
		1864	req->dbc = dbc;
		1865	req->sv1 = SvREFCNT_inc (count);
		1866	REQ_SEND;
		1867	}
		1868
		1869	void
		1870	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1871	PREINIT:
		1872	CALLBACK
		1873	CODE:
		1874	{
		1875	dREQ (REQ_C_PUT, 1);
		1876	req->dbc = dbc;
		1877	sv_to_dbt (&req->dbt1, key);
		1878	sv_to_dbt (&req->dbt2, data);
		1879	req->uint1 = flags;
		1880	REQ_SEND;
		1881	}
		1882
		1883	void
		1884	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1885	PREINIT:
		1886	CALLBACK
		1887	CODE:
		1888	{
		1889	dREQ (REQ_C_GET, 1);
		1890	req->dbc = dbc;
		1891	req->uint1 = flags;
		1892	if ((flags & DB_SET) == DB_SET
		1893	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1894	sv_to_dbt (&req->dbt1, key);
		1895	else
		1896	req->dbt1.flags = DB_DBT_MALLOC;
		1897
		1898	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1899
		1900	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1901	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1902	sv_to_dbt (&req->dbt3, data);
		1903	else
		1904	req->dbt3.flags = DB_DBT_MALLOC;
		1905
		1906	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1907	REQ_SEND;
		1908	}
		1909
		1910	void
		1911	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1912	PREINIT:
		1913	CALLBACK
		1914	CODE:
		1915	{
		1916	dREQ (REQ_C_PGET, 1);
		1917	req->dbc = dbc;
		1918	req->uint1 = flags;
		1919	if ((flags & DB_SET) == DB_SET
		1920	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1921	sv_to_dbt (&req->dbt1, key);
		1922	else
		1923	req->dbt1.flags = DB_DBT_MALLOC;
		1924
		1925	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1926
		1927	req->dbt2.flags = DB_DBT_MALLOC;
		1928	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1929
		1930	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1931	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1932	sv_to_dbt (&req->dbt3, data);
		1933	else
		1934	req->dbt3.flags = DB_DBT_MALLOC;
		1935
		1936	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1937	REQ_SEND;
		1938	}
		1939
		1940	void
		1941	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1942	PREINIT:
		1943	CALLBACK
		1944	CODE:
		1945	{
		1946	dREQ (REQ_C_DEL, 1);
		1947	req->dbc = dbc;
		1948	req->uint1 = flags;
		1949	REQ_SEND;
		1950	}
		1951
		1952
		1953	#if DB_VERSION_MINOR >= 3
		1954
		1955	void
		1956	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1957	PREINIT:
		1958	CALLBACK
		1959	CODE:
		1960	{
		1961	dREQ (REQ_SEQ_OPEN, 2);
		1962	req->seq = seq;
		1963	req->txn = txnid;
		1964	req->uint1 = flags | DB_THREAD;
		1965	sv_to_dbt (&req->dbt1, key);
		1966	REQ_SEND;
		1967	}
		1968
		1969	void
		1970	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1971	PREINIT:
		1972	CALLBACK
		1973	CODE:
		1974	{
		1975	dREQ (REQ_SEQ_CLOSE, 1);
		1976	req->seq = seq;
		1977	req->uint1 = flags;
		1978	REQ_SEND;
		1979	ptr_nuke (ST (0));
		1980	}
		1981
		1982	void
		1983	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1984	PREINIT:
		1985	CALLBACK
		1986	CODE:
		1987	{
		1988	dREQ (REQ_SEQ_GET, 2);
		1989	req->seq = seq;
		1990	req->txn = txnid;
		1991	req->int1 = delta;
		1992	req->uint1 = flags;
		1993	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1994	REQ_SEND;
		1995	}
		1996
		1997	void
		1998	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1999	PREINIT:
		2000	CALLBACK
		2001	CODE:
		2002	{
		2003	dREQ (REQ_SEQ_REMOVE, 2);
		2004	req->seq = seq;
		2005	req->txn = txnid;
		2006	req->uint1 = flags;
		2007	REQ_SEND;
		2008	}
		2009
		2010	#endif
		2011
		2012
		2013	MODULE = BDB PACKAGE = BDB::Env
		2014
		2015	void
		2016	DESTROY (DB_ENV_ornuked *env)
		2017	CODE:
		2018	if (env)
		2019	env->close (env, 0);
		2020
		2021	int set_data_dir (DB_ENV *env, const char *dir)
		2022	CODE:
		2023	RETVAL = env->set_data_dir (env, dir);
		2024	OUTPUT:
		2025	RETVAL
		2026
		2027	int set_tmp_dir (DB_ENV *env, const char *dir)
		2028	CODE:
		2029	RETVAL = env->set_tmp_dir (env, dir);
		2030	OUTPUT:
		2031	RETVAL
		2032
		2033	int set_lg_dir (DB_ENV *env, const char *dir)
		2034	CODE:
		2035	RETVAL = env->set_lg_dir (env, dir);
		2036	OUTPUT:
		2037	RETVAL
		2038
		2039	int set_shm_key (DB_ENV *env, long shm_key)
		2040	CODE:
		2041	RETVAL = env->set_shm_key (env, shm_key);
		2042	OUTPUT:
		2043	RETVAL
		2044
		2045	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2046	CODE:
		2047	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2048	OUTPUT:
		2049	RETVAL
		2050
		2051	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2052	CODE:
		2053	RETVAL = env->set_flags (env, flags, onoff);
		2054	OUTPUT:
		2055	RETVAL
		2056
		2057	#if DB_VERSION_MINOR >= 7
		2058
		2059	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2060	CODE:
		2061	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2062	OUTPUT:
		2063	RETVAL
		2064
		2065	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2066	CODE:
		2067	RETVAL = env->log_set_config (env, flags, onoff);
		2068	OUTPUT:
		2069	RETVAL
		2070
		2071	#endif
		2072
		2073
		2074	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2075	CODE:
		2076	env->set_errfile (env, errfile);
		2077
		2078	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2079	CODE:
		2080	env->set_msgfile (env, msgfile);
		2081
		2082	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2083	CODE:
		2084	RETVAL = env->set_verbose (env, which, onoff);
		2085	OUTPUT:
		2086	RETVAL
		2087
		2088	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2089	CODE:
		2090	RETVAL = env->set_encrypt (env, password, flags);
		2091	OUTPUT:
		2092	RETVAL
		2093
		2094	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2095	CODE:
		2096	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2097	OUTPUT:
		2098	RETVAL
		2099
		2100	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2101	CODE:
		2102	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2103	OUTPUT:
		2104	RETVAL
		2105
		2106	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2107	CODE:
		2108	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2109	OUTPUT:
		2110	RETVAL
		2111
		2112	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2113	CODE:
		2114	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2115	OUTPUT:
		2116	RETVAL
		2117
		2118	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2119	CODE:
		2120	RETVAL = env->set_lk_detect (env, detect);
		2121	OUTPUT:
		2122	RETVAL
		2123
		2124	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2125	CODE:
		2126	RETVAL = env->set_lk_max_lockers (env, max);
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	int set_lk_max_locks (DB_ENV *env, U32 max)
		2131	CODE:
		2132	RETVAL = env->set_lk_max_locks (env, max);
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	int set_lk_max_objects (DB_ENV *env, U32 max)
		2137	CODE:
		2138	RETVAL = env->set_lk_max_objects (env, max);
		2139	OUTPUT:
		2140	RETVAL
		2141
		2142	int set_lg_bsize (DB_ENV *env, U32 max)
		2143	CODE:
		2144	RETVAL = env->set_lg_bsize (env, max);
		2145	OUTPUT:
		2146	RETVAL
		2147
		2148	int set_lg_max (DB_ENV *env, U32 max)
		2149	CODE:
		2150	RETVAL = env->set_lg_max (env, max);
		2151	OUTPUT:
		2152	RETVAL
		2153
		2154	#if DB_VERSION_MINOR >= 4
		2155
		2156	int mutex_set_max (DB_ENV *env, U32 max)
		2157	CODE:
		2158	RETVAL = env->mutex_set_max (env, max);
		2159	OUTPUT:
		2160	RETVAL
		2161
		2162	int mutex_set_increment (DB_ENV *env, U32 increment)
		2163	CODE:
		2164	RETVAL = env->mutex_set_increment (env, increment);
		2165	OUTPUT:
		2166	RETVAL
		2167
		2168	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2169	CODE:
		2170	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2171	OUTPUT:
		2172	RETVAL
		2173
		2174	int mutex_set_align (DB_ENV *env, U32 align)
		2175	CODE:
		2176	RETVAL = env->mutex_set_align (env, align);
		2177	OUTPUT:
		2178	RETVAL
		2179
		2180	#endif
		2181
		2182	DB_TXN *
		2183	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2184	CODE:
		2185	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2186	if (errno)
		2187	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	#if DB_VERSION_MINOR >= 5
		2192
		2193	DB_TXN *
		2194	cdsgroup_begin (DB_ENV *env)
		2195	CODE:
		2196	errno = env->cdsgroup_begin (env, &RETVAL);
		2197	if (errno)
		2198	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	#endif
		2203
		2204	MODULE = BDB PACKAGE = BDB::Db
		2205
		2206	void
		2207	DESTROY (DB_ornuked *db)
		2208	CODE:
		2209	if (db)
		2210	{
		2211	SV *env = (SV *)db->app_private;
		2212	db->close (db, 0);
		2213	SvREFCNT_dec (env);
		2214	}
		2215
		2216	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2217	CODE:
		2218	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	int set_flags (DB *db, U32 flags)
		2223	CODE:
		2224	RETVAL = db->set_flags (db, flags);
		2225	OUTPUT:
		2226	RETVAL
		2227
		2228	int set_encrypt (DB *db, const char *password, U32 flags)
		2229	CODE:
		2230	RETVAL = db->set_encrypt (db, password, flags);
		2231	OUTPUT:
		2232	RETVAL
		2233
		2234	int set_lorder (DB *db, int lorder)
		2235	CODE:
		2236	RETVAL = db->set_lorder (db, lorder);
		2237	OUTPUT:
		2238	RETVAL
		2239
		2240	int set_bt_minkey (DB *db, U32 minkey)
		2241	CODE:
		2242	RETVAL = db->set_bt_minkey (db, minkey);
		2243	OUTPUT:
		2244	RETVAL
		2245
		2246	int set_re_delim (DB *db, int delim)
		2247	CODE:
		2248	RETVAL = db->set_re_delim (db, delim);
		2249	OUTPUT:
		2250	RETVAL
		2251
		2252	int set_re_pad (DB *db, int re_pad)
		2253	CODE:
		2254	RETVAL = db->set_re_pad (db, re_pad);
		2255	OUTPUT:
		2256	RETVAL
		2257
		2258	int set_re_source (DB *db, char *source)
		2259	CODE:
		2260	RETVAL = db->set_re_source (db, source);
		2261	OUTPUT:
		2262	RETVAL
		2263
		2264	int set_re_len (DB *db, U32 re_len)
		2265	CODE:
		2266	RETVAL = db->set_re_len (db, re_len);
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	int set_h_ffactor (DB *db, U32 h_ffactor)
		2271	CODE:
		2272	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2273	OUTPUT:
		2274	RETVAL
		2275
		2276	int set_h_nelem (DB *db, U32 h_nelem)
		2277	CODE:
		2278	RETVAL = db->set_h_nelem (db, h_nelem);
		2279	OUTPUT:
		2280	RETVAL
		2281
		2282	int set_q_extentsize (DB *db, U32 extentsize)
		2283	CODE:
		2284	RETVAL = db->set_q_extentsize (db, extentsize);
		2285	OUTPUT:
		2286	RETVAL
		2287
		2288	DBC *
		2289	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2290	CODE:
		2291	errno = db->cursor (db, txn, &RETVAL, flags);
		2292	if (errno)
		2293	croak ("DB->cursor: %s", db_strerror (errno));
		2294	OUTPUT:
		2295	RETVAL
		2296
		2297	#if DB_VERSION_MINOR >= 3
		2298
		2299	DB_SEQUENCE *
		2300	sequence (DB *db, U32 flags = 0)
		2301	CODE:
		2302	{
		2303	errno = db_sequence_create (&RETVAL, db, flags);
		2304	if (errno)
		2305	croak ("db_sequence_create: %s", db_strerror (errno));
		2306	}
		2307	OUTPUT:
		2308	RETVAL
		2309
		2310	#endif
		2311
		2312
		2313	MODULE = BDB PACKAGE = BDB::Txn
		2314
		2315	void
		2316	DESTROY (DB_TXN_ornuked *txn)
		2317	CODE:
		2318	if (txn)
		2319	txn->abort (txn);
		2320
		2321	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2322	CODE:
		2323	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2324	OUTPUT:
		2325	RETVAL
		2326
		2327	int failed (DB_TXN *txn)
		2328	CODE:
		2329	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2330	OUTPUT:
		2331	RETVAL
		2332
		2333
		2334	MODULE = BDB PACKAGE = BDB::Cursor
		2335
		2336	void
		2337	DESTROY (DBC_ornuked *dbc)
		2338	CODE:
		2339	if (dbc)
		2340	dbc->c_close (dbc);
		2341
		2342	#if DB_VERSION_MINOR >= 6
		2343
		2344	int set_priority (DBC *dbc, int priority)
		2345	CODE:
		2346	dbc->set_priority (dbc, priority);
		2347
		2348	#endif
		2349
		2350	#if DB_VERSION_MINOR >= 3
		2351
		2352	MODULE = BDB PACKAGE = BDB::Sequence
		2353
		2354	void
		2355	DESTROY (DB_SEQUENCE_ornuked *seq)
		2356	CODE:
		2357	if (seq)
		2358	seq->close (seq, 0);
		2359
		2360	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2361	CODE:
		2362	RETVAL = seq->initial_value (seq, value);
		2363	OUTPUT:
		2364	RETVAL
		2365
		2366	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2367	CODE:
		2368	RETVAL = seq->set_cachesize (seq, size);
		2369	OUTPUT:
		2370	RETVAL
		2371
		2372	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2373	CODE:
		2374	RETVAL = seq->set_flags (seq, flags);
		2375	OUTPUT:
		2376	RETVAL
		2377
		2378	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2379	CODE:
		2380	RETVAL = seq->set_range (seq, min, max);
		2381	OUTPUT:
		2382	RETVAL
		2383
		2384	#endif
		2385
		2386

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines