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 1.58 by root, Tue Sep 30 17:03:07 2008 UTC

1	/* solaris */	1	#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
2	#define _POSIX_PTHREAD_SEMANTICS 1
3		2
4	#if __linux && !defined(_GNU_SOURCE)	3	#include "xthread.h"
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		4
11	#include <errno.h>	5	#include <errno.h>
12		6
13	#include "EXTERN.h"	7	#include "EXTERN.h"
14	#include "perl.h"	8	#include "perl.h"
15	#include "XSUB.h"	9	#include "XSUB.h"
16		10
17	#include <pthread.h>	11	// perl stupidly defines these as macros, breaking
		12	// lots and lots of code.
		13	#undef open
		14	#undef close
		15	#undef abort
		16	#undef malloc
		17	#undef free
		18	#undef send
18		19
19	#include <stddef.h>	20	#include <stddef.h>
20	#include <stdlib.h>	21	#include <stdlib.h>
21	#include <errno.h>	22	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	23	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	24	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	25	#include <fcntl.h>
29	#include <signal.h>	26
		27	#ifndef _WIN32
		28	# include <sys/time.h>
		29	# include <unistd.h>
		30	#endif
		31
30	#include <sched.h>	32	#include <db.h>
		33
		34	#if DB_VERSION_MAJOR != 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3)
		35	# error you need Berkeley DB 4.3 or a newer 4.x version installed
		36	#endif
31		37
32	/* number of seconds after which idle threads exit */	38	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	39	#define IDLE_TIMEOUT 10
34		40
35	/* wether word reads are potentially non-atomic.	41	typedef SV SV_mutable;
36	* this is conservatice, likely most arches this runs	42
37	* on have atomic word read/writes.	43	typedef DB_ENV DB_ENV_ornull;
38	*/	44	typedef DB_TXN DB_TXN_ornull;
39	#ifndef WORDACCESS_UNSAFE	45	typedef DBC DBC_ornull;
40	# if __i386 || __x86_64	46	typedef DB DB_ornull;
41	# define WORDACCESS_UNSAFE 0	47
42	# else	48	typedef DB_ENV DB_ENV_ornuked;
43	# define WORDACCESS_UNSAFE 1	49	typedef DB_TXN DB_TXN_ornuked;
44	# endif	50	typedef DBC DBC_ornuked;
		51	typedef DB DB_ornuked;
		52
		53	#if DB_VERSION_MINOR >= 3
		54	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
		55	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
45	#endif	56	#endif
46		57
47	typedef SV SV8; /* byte-sv, used for argument-checking */	58	typedef SV SV8; /* byte-sv, used for argument-checking */
		59	typedef char *bdb_filename;
48		60
		61	static SV *prepare_cb;
		62
		63	#if DB_VERSION_MINOR >= 6
		64	# define c_close close
		65	# define c_count count
		66	# define c_del del
		67	# define c_dup dup
		68	# define c_get get
		69	# define c_pget pget
		70	# define c_put put
		71	#endif
		72
		73	static char *
		74	get_bdb_filename (SV *sv)
		75	{
		76	if (!SvOK (sv))
		77	return 0;
		78
		79	#if _WIN32
		80	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		81	{
		82	STRLEN len;
		83	char *src = SvPVbyte (sv, len);
		84	SV *t1 = sv_newmortal ();
		85	SV *t2 = sv_newmortal ();
		86
		87	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		88	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		89
		90	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		91	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		92	SvPOK_only (t2);
		93	SvPVX (t2)[len] = 0;
		94	SvCUR_set (t2, len);
		95
		96	return SvPVX (t2);
		97	}
		98	#else
		99	return SvPVbyte_nolen (sv);
		100	#endif
		101	}
		102
		103	static void
		104	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		105	{
		106	printf ("err[%s]\n", msg);
		107	}
		108
		109	static void
		110	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		111	{
		112	printf ("msg[%s]\n", msg);
		113	}
		114
		115	static char *
		116	strdup_ornull (const char *s)
		117	{
		118	return s ? strdup (s) : 0;
		119	}
		120
		121	static void
		122	sv_to_dbt (DBT *dbt, SV *sv)
		123	{
		124	STRLEN len;
		125	char *data = SvPVbyte (sv, len);
		126
		127	dbt->data = malloc (len);
		128	memcpy (dbt->data, data, len);
		129	dbt->size = len;
		130	dbt->flags = DB_DBT_REALLOC;
		131	}
		132
		133	static void
		134	dbt_to_sv (SV *sv, DBT *dbt)
		135	{
		136	if (sv)
		137	{
		138	SvREADONLY_off (sv);
		139
		140	if (dbt->data)
		141	sv_setpvn_mg (sv, dbt->data, dbt->size);
		142	else
		143	sv_setsv_mg (sv, &PL_sv_undef);
		144
		145	SvREFCNT_dec (sv);
		146	}
		147
		148	free (dbt->data);
		149	}
		150
49	enum {	151	enum {
50	REQ_QUIT,	152	REQ_QUIT,
		153	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		154	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
		155	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		156	REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		157	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		158	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		159	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	160	};
52		161
53	#define AIO_CB \	162	typedef struct bdb_cb
		163	{
54	struct aio_cb *volatile next; \	164	struct bdb_cb *volatile next;
55	SV *callback; \	165	SV *callback;
56	int type, pri	166	int type, pri, result;
57		167
58	typedef struct aio_cb	168	DB_ENV *env;
59	{	169	DB *db;
60	AIO_CB;	170	DB_TXN *txn;
61	} aio_cb;	171	DBC *dbc;
62		172
		173	UV uv1;
		174	int int1, int2;
		175	U32 uint1, uint2;
		176	char *buf1, *buf2, *buf3;
		177	SV *sv1, *sv2, *sv3;
		178
		179	DBT dbt1, dbt2, dbt3;
		180	DB_KEY_RANGE key_range;
		181	#if DB_VERSION_MINOR >= 3
		182	DB_SEQUENCE *seq;
		183	db_seq_t seq_t;
		184	#endif
		185
		186	SV *rsv1, *rsv2; // keep some request objects alive
		187	} bdb_cb;
		188
63	typedef aio_cb *aio_req;	189	typedef bdb_cb *bdb_req;
64		190
65	enum {	191	enum {
66	PRI_MIN = -4,	192	PRI_MIN = -4,
67	PRI_MAX = 4,	193	PRI_MAX = 4,
68		194
…		…
71	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	197	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
72	};	198	};
73		199
74	#define AIO_TICKS ((1000000 + 1023) >> 10)	200	#define AIO_TICKS ((1000000 + 1023) >> 10)
75		201
		202	static SV *on_next_submit;
		203
76	static unsigned int max_poll_time = 0;	204	static unsigned int max_poll_time = 0;
77	static unsigned int max_poll_reqs = 0;	205	static unsigned int max_poll_reqs = 0;
78		206
79	/* calculcate time difference in ~1/AIO_TICKS of a second */	207	/* calculcate time difference in ~1/AIO_TICKS of a second */
80	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	208	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
85		213
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	214	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		215
88	static unsigned int started, idle, wanted;	216	static unsigned int started, idle, wanted;
89		217
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 */	218	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	219	static mutex_t wrklock = X_MUTEX_INIT;
101		220
102	typedef struct worker {	221	typedef struct worker {
103	/* locked by wrklock */	222	/* locked by wrklock */
104	struct worker *prev, *next;	223	struct worker *prev, *next;
105		224
106	pthread_t tid;	225	thread_t tid;
107		226
108	/* locked by reslock, reqlock or wrklock */	227	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	228	bdb_req req; /* currently processed request */
110	void *dbuf;	229	void *dbuf;
111	DIR *dirp;	230	DIR *dirp;
112	} worker;	231	} worker;
113		232
114	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	233	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
126	}	245	}
127		246
128	static volatile unsigned int nreqs, nready, npending;	247	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	248	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	249	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	250	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		251
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	252	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	253	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	254	static cond_t reqwait = X_COND_INIT;
136		255
137	#if WORDACCESS_UNSAFE	256	#if WORDACCESS_UNSAFE
138		257
139	static unsigned int get_nready ()	258	static unsigned int get_nready (void)
140	{	259	{
141	unsigned int retval;	260	unsigned int retval;
142		261
143	LOCK (reqlock);	262	X_LOCK (reqlock);
144	retval = nready;	263	retval = nready;
145	UNLOCK (reqlock);	264	X_UNLOCK (reqlock);
146		265
147	return retval;	266	return retval;
148	}	267	}
149		268
150	static unsigned int get_npending ()	269	static unsigned int get_npending (void)
151	{	270	{
152	unsigned int retval;	271	unsigned int retval;
153		272
154	LOCK (reslock);	273	X_LOCK (reslock);
155	retval = npending;	274	retval = npending;
156	UNLOCK (reslock);	275	X_UNLOCK (reslock);
157		276
158	return retval;	277	return retval;
159	}	278	}
160		279
161	static unsigned int get_nthreads ()	280	static unsigned int get_nthreads (void)
162	{	281	{
163	unsigned int retval;	282	unsigned int retval;
164		283
165	LOCK (wrklock);	284	X_LOCK (wrklock);
166	retval = started;	285	retval = started;
167	UNLOCK (wrklock);	286	X_UNLOCK (wrklock);
168		287
169	return retval;	288	return retval;
170	}	289	}
171		290
172	#else	291	#else
…		…
181	* a somewhat faster data structure might be nice, but	300	* a somewhat faster data structure might be nice, but
182	* with 8 priorities this actually needs <20 insns	301	* with 8 priorities this actually needs <20 insns
183	* per shift, the most expensive operation.	302	* per shift, the most expensive operation.
184	*/	303	*/
185	typedef struct {	304	typedef struct {
186	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	305	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
187	int size;	306	int size;
188	} reqq;	307	} reqq;
189		308
190	static reqq req_queue;	309	static reqq req_queue;
191	static reqq res_queue;	310	static reqq res_queue;
192		311
193	int reqq_push (reqq *q, aio_req req)	312	int reqq_push (reqq *q, bdb_req req)
194	{	313	{
195	int pri = req->pri;	314	int pri = req->pri;
196	req->next = 0;	315	req->next = 0;
197		316
198	if (q->qe[pri])	317	if (q->qe[pri])
…		…
204	q->qe[pri] = q->qs[pri] = req;	323	q->qe[pri] = q->qs[pri] = req;
205		324
206	return q->size++;	325	return q->size++;
207	}	326	}
208		327
209	aio_req reqq_shift (reqq *q)	328	bdb_req reqq_shift (reqq *q)
210	{	329	{
211	int pri;	330	int pri;
212		331
213	if (!q->size)	332	if (!q->size)
214	return 0;	333	return 0;
215		334
216	--q->size;	335	--q->size;
217		336
218	for (pri = NUM_PRI; pri--; )	337	for (pri = NUM_PRI; pri--; )
219	{	338	{
220	aio_req req = q->qs[pri];	339	bdb_req req = q->qs[pri];
221		340
222	if (req)	341	if (req)
223	{	342	{
224	if (!(q->qs[pri] = req->next))	343	if (!(q->qs[pri] = req->next))
225	q->qe[pri] = 0;	344	q->qe[pri] = 0;
…		…
229	}	348	}
230		349
231	abort ();	350	abort ();
232	}	351	}
233		352
234	static int poll_cb ();	353	static int poll_cb (void);
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	354	static void req_free (bdb_req req);
237	static void req_cancel (aio_req req);
238		355
239	static int req_invoke (aio_req req)	356	static int req_invoke (bdb_req req)
240	{	357	{
241	dSP;	358	switch (req->type)
242
243	if (SvOK (req->callback))
244	{	359	{
		360	case REQ_DB_CLOSE:
		361	SvREFCNT_dec (req->sv1);
		362	break;
		363
		364	case REQ_DB_GET:
		365	case REQ_DB_PGET:
		366	case REQ_C_GET:
		367	case REQ_C_PGET:
		368	case REQ_DB_PUT:
		369	case REQ_C_PUT:
		370	dbt_to_sv (req->sv1, &req->dbt1);
		371	dbt_to_sv (req->sv2, &req->dbt2);
		372	dbt_to_sv (req->sv3, &req->dbt3);
		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	#if DB_VERSION_MINOR >= 3
		390	case REQ_SEQ_GET:
		391	SvREADONLY_off (req->sv1);
		392
		393	if (sizeof (IV) > 4)
		394	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		395	else
		396	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		397
		398	SvREFCNT_dec (req->sv1);
		399	break;
		400	#endif
		401	}
		402
		403	errno = req->result;
		404
		405	if (req->callback)
		406	{
		407	dSP;
		408
245	ENTER;	409	ENTER;
246	SAVETMPS;	410	SAVETMPS;
247	PUSHMARK (SP);	411	PUSHMARK (SP);
248	EXTEND (SP, 1);
249
250	switch (req->type)
251	{
252	}
253		412
254	PUTBACK;	413	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	414	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	415	SPAGAIN;
257		416
258	FREETMPS;	417	FREETMPS;
259	LEAVE;	418	LEAVE;
		419
		420	return !SvTRUE (ERRSV);
260	}	421	}
261		422
262	return !SvTRUE (ERRSV);	423	return 1;
263	}	424	}
264		425
265	static void req_free (aio_req req)	426	static void req_free (bdb_req req)
266	{	427	{
		428	SvREFCNT_dec (req->callback);
		429
		430	SvREFCNT_dec (req->rsv1);
		431	SvREFCNT_dec (req->rsv2);
		432
		433	free (req->buf1);
		434	free (req->buf2);
		435	free (req->buf3);
		436
267	Safefree (req);	437	Safefree (req);
268	}	438	}
269		439
270	static void *aio_proc(void *arg);	440	#ifdef USE_SOCKETS_AS_HANDLES
		441	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		442	#else
		443	# define TO_SOCKET(x) (x)
		444	#endif
		445
		446	static void
		447	create_respipe (void)
		448	{
		449	#ifdef _WIN32
		450	int arg; /* argg */
		451	#endif
		452	int old_readfd = respipe [0];
		453
		454	if (respipe [1] >= 0)
		455	respipe_close (TO_SOCKET (respipe [1]));
		456
		457	#ifdef _WIN32
		458	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		459	#else
		460	if (pipe (respipe))
		461	#endif
		462	croak ("unable to initialize result pipe");
		463
		464	if (old_readfd >= 0)
		465	{
		466	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		467	croak ("unable to initialize result pipe(2)");
		468
		469	respipe_close (respipe [0]);
		470	respipe [0] = old_readfd;
		471	}
		472
		473	#ifdef _WIN32
		474	arg = 1;
		475	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		476	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		477	#else
		478	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		479	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		480	#endif
		481	croak ("unable to initialize result pipe(3)");
		482
		483	respipe_osf [0] = TO_SOCKET (respipe [0]);
		484	respipe_osf [1] = TO_SOCKET (respipe [1]);
		485	}
		486
		487	static void bdb_request (bdb_req req);
		488	X_THREAD_PROC (bdb_proc);
271		489
272	static void start_thread (void)	490	static void start_thread (void)
273	{	491	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	492	worker *wrk = calloc (1, sizeof (worker));
278		493
279	if (!wrk)	494	if (!wrk)
280	croak ("unable to allocate worker thread data");	495	croak ("unable to allocate worker thread data");
281		496
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);	497	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	498	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	499	{
295	wrk->prev = &wrk_first;	500	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	501	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	502	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	503	wrk_first.next = wrk;
299	++started;	504	++started;
300	}	505	}
301	else	506	else
302	free (wrk);	507	free (wrk);
303		508
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	509	X_UNLOCK (wrklock);
306	}	510	}
307		511
308	static void maybe_start_thread ()	512	static void maybe_start_thread (void)
309	{	513	{
310	if (get_nthreads () >= wanted)	514	if (get_nthreads () >= wanted)
311	return;	515	return;
312		516
313	/* todo: maybe use idle here, but might be less exact */	517	/* todo: maybe use idle here, but might be less exact */
…		…
315	return;	519	return;
316		520
317	start_thread ();	521	start_thread ();
318	}	522	}
319		523
320	static void req_send (aio_req req)	524	static void req_send (bdb_req req)
321	{	525	{
		526	SV *wait_callback = 0;
		527
		528	if (on_next_submit)
		529	{
		530	dSP;
		531	SV *cb = sv_2mortal (on_next_submit);
		532
		533	on_next_submit = 0;
		534
		535	PUSHMARK (SP);
		536	PUTBACK;
		537	call_sv (cb, G_DISCARD | G_EVAL);
		538	SPAGAIN;
		539	}
		540
		541	// synthesize callback if none given
		542	if (!req->callback)
		543	{
		544	if (SvOK (prepare_cb))
		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 ("sync prepare callback must return exactly two values\n");
		556
		557	wait_callback = POPs;
		558	req->callback = SvREFCNT_inc (POPs);
		559	}
		560	else
		561	{
		562	// execute request synchronously
		563	bdb_request (req);
		564	req_invoke (req);
		565	req_free (req);
		566	return;
		567	}
		568	}
		569
322	++nreqs;	570	++nreqs;
323		571
324	LOCK (reqlock);	572	X_LOCK (reqlock);
325	++nready;	573	++nready;
326	reqq_push (&req_queue, req);	574	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	575	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	576	X_UNLOCK (reqlock);
329		577
330	maybe_start_thread ();	578	maybe_start_thread ();
		579
		580	if (wait_callback)
		581	{
		582	dSP;
		583	PUSHMARK (SP);
		584	PUTBACK;
		585	call_sv (wait_callback, G_DISCARD);
		586	}
331	}	587	}
332		588
333	static void end_thread (void)	589	static void end_thread (void)
334	{	590	{
335	aio_req req;	591	bdb_req req = calloc (1, sizeof (bdb_cb));
336
337	Newz (0, req, 1, aio_cb);
338		592
339	req->type = REQ_QUIT;	593	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	594	req->pri = PRI_MAX + PRI_BIAS;
341		595
342	LOCK (reqlock);	596	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	597	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	598	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	599	X_UNLOCK (reqlock);
346		600
347	LOCK (wrklock);	601	X_LOCK (wrklock);
348	--started;	602	--started;
349	UNLOCK (wrklock);	603	X_UNLOCK (wrklock);
350	}	604	}
351		605
352	static void set_max_idle (int nthreads)	606	static void set_max_idle (int nthreads)
353	{	607	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	608	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	609	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	610	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	611	}
358		612
359	static void min_parallel (int nthreads)	613	static void min_parallel (int nthreads)
360	{	614	{
361	if (wanted < nthreads)	615	if (wanted < nthreads)
…		…
369		623
370	while (started > wanted)	624	while (started > wanted)
371	end_thread ();	625	end_thread ();
372	}	626	}
373		627
374	static void poll_wait ()	628	static void poll_wait (void)
375	{	629	{
376	fd_set rfd;	630	fd_set rfd;
377		631
378	while (nreqs)	632	while (nreqs)
379	{	633	{
380	int size;	634	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	635	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	636	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	637	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		638
385	if (size)	639	if (size)
386	return;	640	return;
387		641
388	maybe_start_thread ();	642	maybe_start_thread ();
389		643
390	FD_ZERO(&rfd);	644	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	645	FD_SET (respipe [0], &rfd);
392		646
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	647	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	648	}
395	}	649	}
396		650
397	static int poll_cb ()	651	static int poll_cb (void)
398	{	652	{
399	dSP;	653	dSP;
400	int count = 0;	654	int count = 0;
401	int maxreqs = max_poll_reqs;	655	int maxreqs = max_poll_reqs;
402	int do_croak = 0;	656	int do_croak = 0;
403	struct timeval tv_start, tv_now;	657	struct timeval tv_start, tv_now;
404	aio_req req;	658	bdb_req req;
405		659
406	if (max_poll_time)	660	if (max_poll_time)
407	gettimeofday (&tv_start, 0);	661	gettimeofday (&tv_start, 0);
408		662
409	for (;;)	663	for (;;)
410	{	664	{
411	for (;;)	665	for (;;)
412	{	666	{
413	maybe_start_thread ();	667	maybe_start_thread ();
414		668
415	LOCK (reslock);	669	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	670	req = reqq_shift (&res_queue);
417		671
418	if (req)	672	if (req)
419	{	673	{
420	--npending;	674	--npending;
421		675
422	if (!res_queue.size)	676	if (!res_queue.size)
423	{	677	{
424	/* read any signals sent by the worker threads */	678	/* read any signals sent by the worker threads */
425	char buf [4];	679	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	680	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	681	;
428	}	682	}
429	}	683	}
430		684
431	UNLOCK (reslock);	685	X_UNLOCK (reslock);
432		686
433	if (!req)	687	if (!req)
434	break;	688	break;
435		689
436	--nreqs;	690	--nreqs;
…		…
466	}	720	}
467		721
468	return count;	722	return count;
469	}	723	}
470		724
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	/*****************************************************************************/	725	/*****************************************************************************/
484		726
485	static void *aio_proc (void *thr_arg)	727	static void
		728	bdb_request (bdb_req req)
486	{	729	{
		730	switch (req->type)
		731	{
		732	case REQ_ENV_OPEN:
		733	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		734	break;
		735
		736	case REQ_ENV_CLOSE:
		737	req->result = req->env->close (req->env, req->uint1);
		738	break;
		739
		740	case REQ_ENV_TXN_CHECKPOINT:
		741	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		742	break;
		743
		744	case REQ_ENV_LOCK_DETECT:
		745	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		746	break;
		747
		748	case REQ_ENV_MEMP_SYNC:
		749	req->result = req->env->memp_sync (req->env, 0);
		750	break;
		751
		752	case REQ_ENV_MEMP_TRICKLE:
		753	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		754	break;
		755
		756	case REQ_ENV_DBREMOVE:
		757	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		758	break;
		759
		760	case REQ_ENV_DBRENAME:
		761	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		762	break;
		763
		764	case REQ_DB_OPEN:
		765	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		766	break;
		767
		768	case REQ_DB_CLOSE:
		769	req->result = req->db->close (req->db, req->uint1);
		770	break;
		771
		772	#if DB_VERSION_MINOR >= 4
		773	case REQ_DB_COMPACT:
		774	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		775	break;
		776	#endif
		777
		778	case REQ_DB_SYNC:
		779	req->result = req->db->sync (req->db, req->uint1);
		780	break;
		781
		782	case REQ_DB_UPGRADE:
		783	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		784	break;
		785
		786	case REQ_DB_PUT:
		787	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		788	break;
		789
		790	#if DB_VERSION_MINOR >= 6
		791	case REQ_DB_EXISTS:
		792	req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
		793	break;
		794	#endif
		795	case REQ_DB_GET:
		796	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		797	break;
		798
		799	case REQ_DB_PGET:
		800	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		801	break;
		802
		803	case REQ_DB_DEL:
		804	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		805	break;
		806
		807	case REQ_DB_KEY_RANGE:
		808	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		809	break;
		810
		811	case REQ_TXN_COMMIT:
		812	req->result = req->txn->commit (req->txn, req->uint1);
		813	break;
		814
		815	case REQ_TXN_ABORT:
		816	req->result = req->txn->abort (req->txn);
		817	break;
		818
		819	case REQ_TXN_FINISH:
		820	if (req->txn->flags & TXN_DEADLOCK)
		821	{
		822	req->result = req->txn->abort (req->txn);
		823	if (!req->result)
		824	req->result = DB_LOCK_DEADLOCK;
		825	}
		826	else
		827	req->result = req->txn->commit (req->txn, req->uint1);
		828	break;
		829
		830	case REQ_C_CLOSE:
		831	req->result = req->dbc->c_close (req->dbc);
		832	break;
		833
		834	case REQ_C_COUNT:
		835	{
		836	db_recno_t recno;
		837	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		838	req->uv1 = recno;
		839	}
		840	break;
		841
		842	case REQ_C_PUT:
		843	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		844	break;
		845
		846	case REQ_C_GET:
		847	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		848	break;
		849
		850	case REQ_C_PGET:
		851	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		852	break;
		853
		854	case REQ_C_DEL:
		855	req->result = req->dbc->c_del (req->dbc, req->uint1);
		856	break;
		857
		858	#if DB_VERSION_MINOR >= 3
		859	case REQ_SEQ_OPEN:
		860	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		861	break;
		862
		863	case REQ_SEQ_CLOSE:
		864	req->result = req->seq->close (req->seq, req->uint1);
		865	break;
		866
		867	case REQ_SEQ_GET:
		868	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		869	break;
		870
		871	case REQ_SEQ_REMOVE:
		872	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		873	break;
		874	#endif
		875
		876	default:
		877	req->result = ENOSYS;
		878	break;
		879	}
		880
		881	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		882	req->txn->flags |= TXN_DEADLOCK;
		883	}
		884
		885	X_THREAD_PROC (bdb_proc)
		886	{
487	aio_req req;	887	bdb_req req;
488	struct timespec ts;	888	struct timespec ts;
489	worker *self = (worker *)thr_arg;	889	worker *self = (worker *)thr_arg;
490		890
491	/* try to distribute timeouts somewhat evenly */	891	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	892	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		893
495	for (;;)	894	for (;;)
496	{	895	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	896	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		897
499	LOCK (reqlock);	898	X_LOCK (reqlock);
500		899
501	for (;;)	900	for (;;)
502	{	901	{
503	self->req = req = reqq_shift (&req_queue);	902	self->req = req = reqq_shift (&req_queue);
504		903
505	if (req)	904	if (req)
506	break;	905	break;
507		906
508	++idle;	907	++idle;
509		908
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	909	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	910	== ETIMEDOUT)
512	{	911	{
513	if (idle > max_idle)	912	if (idle > max_idle)
514	{	913	{
515	--idle;	914	--idle;
516	UNLOCK (reqlock);	915	X_UNLOCK (reqlock);
517	LOCK (wrklock);	916	X_LOCK (wrklock);
518	--started;	917	--started;
519	UNLOCK (wrklock);	918	X_UNLOCK (wrklock);
520	goto quit;	919	goto quit;
521	}	920	}
522		921
523	/* we are allowed to idle, so do so without any timeout */	922	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	923	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	924	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	925	}
527		926
528	--idle;	927	--idle;
529	}	928	}
530		929
531	--nready;	930	--nready;
532		931
533	UNLOCK (reqlock);	932	X_UNLOCK (reqlock);
534
535	errno = 0; /* strictly unnecessary */
536		933
537	switch (req->type)	934	if (req->type == REQ_QUIT)
538	{	935	{
539	case REQ_QUIT:	936	X_LOCK (reslock);
		937	free (req);
		938	self->req = 0;
		939	X_UNLOCK (reslock);
		940
540	goto quit;	941	goto quit;
541
542	default:
543	//req->result = ENOSYS;
544	break;
545	}	942	}
546		943
547	//req->errorno = errno;	944	bdb_request (req);
548		945
549	LOCK (reslock);	946	X_LOCK (reslock);
550		947
551	++npending;	948	++npending;
552		949
553	if (!reqq_push (&res_queue, req))	950	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	951	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	952	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		953
557	self->req = 0;	954	self->req = 0;
558	worker_clear (self);	955	worker_clear (self);
559		956
560	UNLOCK (reslock);	957	X_UNLOCK (reslock);
561	}	958	}
562		959
563	quit:	960	quit:
564	LOCK (wrklock);	961	X_LOCK (wrklock);
565	worker_free (self);	962	worker_free (self);
566	UNLOCK (wrklock);	963	X_UNLOCK (wrklock);
567		964
568	return 0;	965	return 0;
569	}	966	}
570		967
571	/*****************************************************************************/	968	/*****************************************************************************/
572		969
573	static void atfork_prepare (void)	970	static void atfork_prepare (void)
574	{	971	{
575	LOCK (wrklock);	972	X_LOCK (wrklock);
576	LOCK (reqlock);	973	X_LOCK (reqlock);
577	LOCK (reslock);	974	X_LOCK (reslock);
578	}	975	}
579		976
580	static void atfork_parent (void)	977	static void atfork_parent (void)
581	{	978	{
582	UNLOCK (reslock);	979	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	980	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	981	X_UNLOCK (wrklock);
585	}	982	}
586		983
587	static void atfork_child (void)	984	static void atfork_child (void)
588	{	985	{
589	aio_req prv;	986	bdb_req prv;
590		987
591	while (prv = reqq_shift (&req_queue))	988	while (prv = reqq_shift (&req_queue))
592	req_free (prv);	989	req_free (prv);
593		990
594	while (prv = reqq_shift (&res_queue))	991	while (prv = reqq_shift (&res_queue))
…		…
609	idle = 0;	1006	idle = 0;
610	nreqs = 0;	1007	nreqs = 0;
611	nready = 0;	1008	nready = 0;
612	npending = 0;	1009	npending = 0;
613		1010
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	1011	create_respipe ();
617		1012
618	atfork_parent ();	1013	atfork_parent ();
619	}	1014	}
620		1015
621	#define dREQ \	1016	#define dREQ(reqtype,rsvcnt) \
622	aio_req req; \	1017	bdb_req req; \
623	int req_pri = next_pri; \	1018	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	1019	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	1020	\
626	if (SvOK (callback) && !SvROK (callback)) \	1021	if (callback && SvOK (callback)) \
627	croak ("callback must be undef or of reference type"); \	1022	croak ("callback has illegal type or extra arguments"); \
628	\	1023	\
629	Newz (0, req, 1, aio_cb); \	1024	Newz (0, req, 1, bdb_cb); \
630	if (!req) \	1025	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	1026	croak ("out of memory during bdb_req allocation"); \
632	\	1027	\
633	req->callback = newSVsv (callback); \	1028	req->callback = SvREFCNT_inc (cb); \
		1029	req->type = (reqtype); \
634	req->pri = req_pri	1030	req->pri = req_pri; \
		1031	if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
		1032	if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
		1033	(void)0;
635		1034
636	#define REQ_SEND \	1035	#define REQ_SEND \
637	req_send (req); \	1036	req_send (req)
		1037
		1038	#define SvPTR(var, arg, type, class, nullok) \
		1039	if (!SvOK (arg)) \
		1040	{ \
		1041	if (nullok != 1) \
		1042	croak (# var " must be a " # class " object, not undef"); \
638	\	1043	\
639	if (GIMME_V != G_VOID) \	1044	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	1045	} \
641		1046	else if (sv_derived_from ((arg), # class)) \
		1047	{ \
		1048	IV tmp = SvIV ((SV*) SvRV (arg)); \
		1049	(var) = INT2PTR (type, tmp); \
		1050	if (!var && nullok != 2) \
		1051	croak (# var " is not a valid " # class " object anymore"); \
		1052	} \
		1053	else \
		1054	croak (# var " is not of type " # class);
		1055
		1056	#define ARG_MUTABLE(name) \
		1057	if (SvREADONLY (name)) \
		1058	croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
		1059
		1060	static void
		1061	ptr_nuke (SV *sv)
		1062	{
		1063	assert (SvROK (sv));
		1064	sv_setiv (SvRV (sv), 0);
		1065	}
		1066
		1067	static int
		1068	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1069	{
		1070	if (*mg->mg_ptr == '!') // should always be the case
		1071	if (-30999 <= errno && errno <= -30800)
		1072	{
		1073	sv_setnv (sv, (NV)errno);
		1074	sv_setpv (sv, db_strerror (errno));
		1075	SvNOK_on (sv); /* what a wonderful hack! */
		1076	// ^^^ copied from perl sources
		1077	return 0;
		1078	}
		1079
		1080	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1081	}
		1082
		1083	static MGVTBL vtbl_errno;
		1084
		1085	// this wonderful hack :( patches perl's $! variable to support our errno values
		1086	static void
		1087	patch_errno (void)
		1088	{
		1089	SV *sv;
		1090	MAGIC *mg;
		1091
		1092	if (!(sv = get_sv ("!", 1)))
		1093	return;
		1094
		1095	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1096	return;
		1097
		1098	if (mg->mg_virtual != &PL_vtbl_sv)
		1099	return;
		1100
		1101	vtbl_errno = PL_vtbl_sv;
		1102	vtbl_errno.svt_get = errno_get;
		1103	mg->mg_virtual = &vtbl_errno;
		1104	}
		1105
		1106	#if __GNUC__ >= 4
		1107	# define noinline __attribute__ ((noinline))
		1108	#else
		1109	# define noinline
		1110	#endif
		1111
		1112	static noinline SV *
		1113	pop_callback (I32 *ritems, SV *sv)
		1114	{
		1115	if (SvROK (sv))
		1116	{
		1117	HV *st;
		1118	GV *gvp;
		1119	CV *cv;
		1120	const char *name;
		1121
		1122	/* forgive me */
		1123	if (SvTYPE (SvRV (sv)) == SVt_PVMG
		1124	&& (st = SvSTASH (SvRV (sv)))
		1125	&& (name = HvNAME_get (st))
		1126	&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
		1127	return 0;
		1128
		1129	if ((cv = sv_2cv (sv, &st, &gvp, 0)))
		1130	{
		1131	--*ritems;
		1132	return (SV *)cv;
		1133	}
		1134	}
		1135
		1136	return 0;
		1137	}
		1138
		1139	/* stupid windows defines CALLBACK as well */
		1140	#undef CALLBACK
		1141	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
		1142
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	1143	MODULE = BDB PACKAGE = BDB
643		1144
644	PROTOTYPES: ENABLE	1145	PROTOTYPES: ENABLE
645		1146
646	BOOT:	1147	BOOT:
647	{	1148	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	1149	HV *stash = gv_stashpv ("BDB", 1);
649		1150
650	create_pipe ();	1151	static const struct {
		1152	const char *name;
		1153	IV iv;
		1154	} *civ, const_iv[] = {
		1155	#define const_iv(name) { # name, (IV)DB_ ## name },
		1156	const_iv (RPCCLIENT)
		1157	const_iv (INIT_CDB)
		1158	const_iv (INIT_LOCK)
		1159	const_iv (INIT_LOG)
		1160	const_iv (INIT_MPOOL)
		1161	const_iv (INIT_REP)
		1162	const_iv (INIT_TXN)
		1163	const_iv (RECOVER)
		1164	const_iv (INIT_TXN)
		1165	const_iv (RECOVER_FATAL)
		1166	const_iv (CREATE)
		1167	const_iv (RDONLY)
		1168	const_iv (USE_ENVIRON)
		1169	const_iv (USE_ENVIRON_ROOT)
		1170	const_iv (LOCKDOWN)
		1171	const_iv (PRIVATE)
		1172	const_iv (SYSTEM_MEM)
		1173	const_iv (AUTO_COMMIT)
		1174	const_iv (CDB_ALLDB)
		1175	const_iv (DIRECT_DB)
		1176	const_iv (NOLOCKING)
		1177	const_iv (NOMMAP)
		1178	const_iv (NOPANIC)
		1179	const_iv (OVERWRITE)
		1180	const_iv (PANIC_ENVIRONMENT)
		1181	const_iv (REGION_INIT)
		1182	const_iv (TIME_NOTGRANTED)
		1183	const_iv (TXN_NOSYNC)
		1184	const_iv (TXN_NOT_DURABLE)
		1185	const_iv (TXN_WRITE_NOSYNC)
		1186	const_iv (WRITECURSOR)
		1187	const_iv (YIELDCPU)
		1188	const_iv (ENCRYPT_AES)
		1189	const_iv (XA_CREATE)
		1190	const_iv (BTREE)
		1191	const_iv (HASH)
		1192	const_iv (QUEUE)
		1193	const_iv (RECNO)
		1194	const_iv (UNKNOWN)
		1195	const_iv (EXCL)
		1196	const_iv (TRUNCATE)
		1197	const_iv (NOSYNC)
		1198	const_iv (CHKSUM)
		1199	const_iv (ENCRYPT)
		1200	const_iv (DUP)
		1201	const_iv (DUPSORT)
		1202	const_iv (RECNUM)
		1203	const_iv (RENUMBER)
		1204	const_iv (REVSPLITOFF)
		1205	const_iv (CONSUME)
		1206	const_iv (CONSUME_WAIT)
		1207	const_iv (GET_BOTH)
		1208	const_iv (GET_BOTH_RANGE)
		1209	//const_iv (SET_RECNO)
		1210	//const_iv (MULTIPLE)
		1211	const_iv (SNAPSHOT)
		1212	const_iv (JOIN_ITEM)
		1213	const_iv (JOIN_NOSORT)
		1214	const_iv (RMW)
		1215
		1216	const_iv (NOTFOUND)
		1217	const_iv (KEYEMPTY)
		1218	const_iv (LOCK_DEADLOCK)
		1219	const_iv (LOCK_NOTGRANTED)
		1220	const_iv (RUNRECOVERY)
		1221	const_iv (OLD_VERSION)
		1222	const_iv (REP_HANDLE_DEAD)
		1223	const_iv (SECONDARY_BAD)
		1224
		1225	const_iv (APPEND)
		1226	const_iv (NODUPDATA)
		1227	const_iv (NOOVERWRITE)
		1228
		1229	const_iv (TXN_NOWAIT)
		1230	const_iv (TXN_SYNC)
		1231
		1232	const_iv (SET_LOCK_TIMEOUT)
		1233	const_iv (SET_TXN_TIMEOUT)
		1234
		1235	const_iv (FIRST)
		1236	const_iv (NEXT)
		1237	const_iv (NEXT_DUP)
		1238	const_iv (NEXT_NODUP)
		1239	const_iv (PREV)
		1240	const_iv (PREV_NODUP)
		1241	const_iv (SET)
		1242	const_iv (SET_RANGE)
		1243	const_iv (LAST)
		1244	const_iv (BEFORE)
		1245	const_iv (AFTER)
		1246	const_iv (CURRENT)
		1247	const_iv (KEYFIRST)
		1248	const_iv (KEYLAST)
		1249	const_iv (NODUPDATA)
		1250
		1251	const_iv (FORCE)
		1252
		1253	const_iv (LOCK_DEFAULT)
		1254	const_iv (LOCK_EXPIRE)
		1255	const_iv (LOCK_MAXLOCKS)
		1256	const_iv (LOCK_MINLOCKS)
		1257	const_iv (LOCK_MINWRITE)
		1258	const_iv (LOCK_OLDEST)
		1259	const_iv (LOCK_RANDOM)
		1260	const_iv (LOCK_YOUNGEST)
		1261
		1262	const_iv (DONOTINDEX)
		1263	const_iv (KEYEMPTY )
		1264	const_iv (KEYEXIST )
		1265	const_iv (LOCK_DEADLOCK)
		1266	const_iv (LOCK_NOTGRANTED)
		1267	const_iv (NOSERVER)
		1268	const_iv (NOSERVER_HOME)
		1269	const_iv (NOSERVER_ID)
		1270	const_iv (NOTFOUND)
		1271	const_iv (PAGE_NOTFOUND)
		1272	const_iv (REP_DUPMASTER)
		1273	const_iv (REP_HANDLE_DEAD)
		1274	const_iv (REP_HOLDELECTION)
		1275	const_iv (REP_ISPERM)
		1276	const_iv (REP_NEWMASTER)
		1277	const_iv (REP_NEWSITE)
		1278	const_iv (REP_NOTPERM)
		1279	const_iv (REP_UNAVAIL)
		1280	const_iv (RUNRECOVERY)
		1281	const_iv (SECONDARY_BAD)
		1282	const_iv (VERIFY_BAD)
		1283
		1284	const_iv (VERB_DEADLOCK)
		1285	const_iv (VERB_RECOVERY)
		1286	const_iv (VERB_REPLICATION)
		1287	const_iv (VERB_WAITSFOR)
		1288
		1289	const_iv (VERSION_MAJOR)
		1290	const_iv (VERSION_MINOR)
		1291	const_iv (VERSION_PATCH)
		1292	#if DB_VERSION_MINOR >= 3
		1293	const_iv (INORDER)
		1294	const_iv (LOCK_MAXWRITE)
		1295	const_iv (SEQ_DEC)
		1296	const_iv (SEQ_INC)
		1297	const_iv (SEQ_WRAP)
		1298	const_iv (BUFFER_SMALL)
		1299	const_iv (LOG_BUFFER_FULL)
		1300	const_iv (VERSION_MISMATCH)
		1301	#endif
		1302	#if DB_VERSION_MINOR >= 4
		1303	const_iv (REGISTER)
		1304	const_iv (DSYNC_DB)
		1305	const_iv (READ_COMMITTED)
		1306	const_iv (READ_UNCOMMITTED)
		1307	const_iv (REP_IGNORE)
		1308	const_iv (REP_LOCKOUT)
		1309	const_iv (REP_JOIN_FAILURE)
		1310	const_iv (FREE_SPACE)
		1311	const_iv (FREELIST_ONLY)
		1312	const_iv (VERB_REGISTER)
		1313	#endif
		1314	#if DB_VERSION_MINOR >= 5
		1315	const_iv (MULTIVERSION)
		1316	const_iv (TXN_SNAPSHOT)
		1317	#endif
		1318	#if DB_VERSION_MINOR >= 6
		1319	const_iv (PREV_DUP)
		1320	const_iv (PRIORITY_UNCHANGED)
		1321	const_iv (PRIORITY_VERY_LOW)
		1322	const_iv (PRIORITY_LOW)
		1323	const_iv (PRIORITY_DEFAULT)
		1324	const_iv (PRIORITY_HIGH)
		1325	const_iv (PRIORITY_VERY_HIGH)
		1326	#endif
		1327	#if DB_VERSION_MINOR >= 7
		1328	const_iv (LOG_DIRECT)
		1329	const_iv (LOG_DSYNC)
		1330	const_iv (LOG_AUTO_REMOVE)
		1331	const_iv (LOG_IN_MEMORY)
		1332	const_iv (LOG_ZERO)
		1333	#else
		1334	const_iv (DIRECT_LOG)
		1335	const_iv (LOG_AUTOREMOVE)
		1336	# if DB_VERSION_MINOR >= 3
		1337	const_iv (DSYNC_LOG)
		1338	const_iv (LOG_INMEMORY)
		1339	# endif
		1340	#endif
		1341	};
		1342
		1343	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1344	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1345
		1346	prepare_cb = &PL_sv_undef;
		1347
		1348	{
		1349	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1350	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1351
		1352	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1353	}
		1354
		1355	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1356
		1357	create_respipe ();
		1358
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1359	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1360	patch_errno ();
652	}	1361	}
653		1362
654	void	1363	void
655	max_poll_reqs (int nreqs)	1364	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1365	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1394	max_outstanding = maxreqs;
686	OUTPUT:	1395	OUTPUT:
687	RETVAL	1396	RETVAL
688		1397
689	int	1398	int
690	bdbreq_pri (int pri = 0)	1399	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1400	PROTOTYPE: ;$
692	CODE:	1401	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1402	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1403	if (items > 0)
695	{	1404	{
…		…
699	}	1408	}
700	OUTPUT:	1409	OUTPUT:
701	RETVAL	1410	RETVAL
702		1411
703	void	1412	void
704	bdbreq_nice (int nice = 0)	1413	dbreq_nice (int nice = 0)
705	CODE:	1414	CODE:
706	nice = next_pri - nice;	1415	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1416	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1417	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1418	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1426	poll_wait ();
718	poll_cb ();	1427	poll_cb ();
719	}	1428	}
720		1429
721	int	1430	int
722	poll()	1431	poll ()
723	PROTOTYPE:	1432	PROTOTYPE:
724	CODE:	1433	CODE:
725	poll_wait ();	1434	poll_wait ();
726	RETVAL = poll_cb ();	1435	RETVAL = poll_cb ();
727	OUTPUT:	1436	OUTPUT:
728	RETVAL	1437	RETVAL
729		1438
730	int	1439	int
731	poll_fileno()	1440	poll_fileno ()
732	PROTOTYPE:	1441	PROTOTYPE:
733	CODE:	1442	CODE:
734	RETVAL = respipe [0];	1443	RETVAL = respipe [0];
735	OUTPUT:	1444	OUTPUT:
736	RETVAL	1445	RETVAL
737		1446
738	int	1447	int
739	poll_cb(...)	1448	poll_cb (...)
740	PROTOTYPE:	1449	PROTOTYPE:
741	CODE:	1450	CODE:
742	RETVAL = poll_cb ();	1451	RETVAL = poll_cb ();
743	OUTPUT:	1452	OUTPUT:
744	RETVAL	1453	RETVAL
745		1454
746	void	1455	void
747	poll_wait()	1456	poll_wait ()
748	PROTOTYPE:	1457	PROTOTYPE:
749	CODE:	1458	CODE:
750	poll_wait ();	1459	poll_wait ();
751		1460
752	int	1461	int
753	nreqs()	1462	nreqs ()
754	PROTOTYPE:	1463	PROTOTYPE:
755	CODE:	1464	CODE:
756	RETVAL = nreqs;	1465	RETVAL = nreqs;
757	OUTPUT:	1466	OUTPUT:
758	RETVAL	1467	RETVAL
759		1468
760	int	1469	int
761	nready()	1470	nready ()
762	PROTOTYPE:	1471	PROTOTYPE:
763	CODE:	1472	CODE:
764	RETVAL = get_nready ();	1473	RETVAL = get_nready ();
765	OUTPUT:	1474	OUTPUT:
766	RETVAL	1475	RETVAL
767		1476
768	int	1477	int
769	npending()	1478	npending ()
770	PROTOTYPE:	1479	PROTOTYPE:
771	CODE:	1480	CODE:
772	RETVAL = get_npending ();	1481	RETVAL = get_npending ();
773	OUTPUT:	1482	OUTPUT:
774	RETVAL	1483	RETVAL
775		1484
776	int	1485	int
777	nthreads()	1486	nthreads ()
778	PROTOTYPE:	1487	PROTOTYPE:
779	CODE:	1488	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1489	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1490	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1491	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1492	OUTPUT:
784	RETVAL	1493	RETVAL
785		1494
		1495	SV *
		1496	set_sync_prepare (SV *cb)
		1497	PROTOTYPE: &
		1498	CODE:
		1499	RETVAL = prepare_cb;
		1500	prepare_cb = newSVsv (cb);
		1501	OUTPUT:
		1502	RETVAL
786		1503
		1504	char *
		1505	strerror (int errorno = errno)
		1506	PROTOTYPE: ;$
		1507	CODE:
		1508	RETVAL = db_strerror (errorno);
		1509	OUTPUT:
		1510	RETVAL
		1511
		1512	void _on_next_submit (SV *cb)
		1513	CODE:
		1514	SvREFCNT_dec (on_next_submit);
		1515	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1516
		1517	DB_ENV *
		1518	db_env_create (U32 env_flags = 0)
		1519	CODE:
		1520	{
		1521	errno = db_env_create (&RETVAL, env_flags);
		1522	if (errno)
		1523	croak ("db_env_create: %s", db_strerror (errno));
		1524
		1525	if (0)
		1526	{
		1527	RETVAL->set_errcall (RETVAL, debug_errcall);
		1528	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1529	}
		1530	}
		1531	OUTPUT:
		1532	RETVAL
		1533
		1534	void
		1535	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1536	PREINIT:
		1537	CALLBACK
		1538	CODE:
		1539	{
		1540	dREQ (REQ_ENV_OPEN, 1);
		1541	req->env = env;
		1542	req->uint1 = open_flags | DB_THREAD;
		1543	req->int1 = mode;
		1544	req->buf1 = strdup_ornull (db_home);
		1545	REQ_SEND;
		1546	}
		1547
		1548	void
		1549	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1550	PREINIT:
		1551	CALLBACK
		1552	CODE:
		1553	{
		1554	dREQ (REQ_ENV_CLOSE, 0);
		1555	ptr_nuke (ST (0));
		1556	req->env = env;
		1557	req->uint1 = flags;
		1558	REQ_SEND;
		1559	}
		1560
		1561	void
		1562	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1563	PREINIT:
		1564	CALLBACK
		1565	CODE:
		1566	{
		1567	dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
		1568	req->env = env;
		1569	req->uint1 = kbyte;
		1570	req->int1 = min;
		1571	req->uint2 = flags;
		1572	REQ_SEND;
		1573	}
		1574
		1575	void
		1576	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1577	PREINIT:
		1578	CALLBACK
		1579	CODE:
		1580	{
		1581	dREQ (REQ_ENV_LOCK_DETECT, 1);
		1582	req->env = env;
		1583	req->uint1 = flags;
		1584	req->uint2 = atype;
		1585	/* req->int2 = 0; dummy */
		1586	REQ_SEND;
		1587	}
		1588
		1589	void
		1590	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1591	PREINIT:
		1592	CALLBACK
		1593	CODE:
		1594	{
		1595	dREQ (REQ_ENV_MEMP_SYNC, 1);
		1596	req->env = env;
		1597	REQ_SEND;
		1598	}
		1599
		1600	void
		1601	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1602	PREINIT:
		1603	CALLBACK
		1604	CODE:
		1605	{
		1606	dREQ (REQ_ENV_MEMP_TRICKLE, 1);
		1607	req->env = env;
		1608	req->int1 = percent;
		1609	REQ_SEND;
		1610	}
		1611
		1612	void
		1613	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1614	PREINIT:
		1615	CALLBACK
		1616	CODE:
		1617	{
		1618	dREQ (REQ_ENV_DBREMOVE, 2);
		1619	req->env = env;
		1620	req->buf1 = strdup_ornull (file);
		1621	req->buf2 = strdup_ornull (database);
		1622	req->uint1 = flags;
		1623	REQ_SEND;
		1624	}
		1625
		1626	void
		1627	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)
		1628	PREINIT:
		1629	CALLBACK
		1630	CODE:
		1631	{
		1632	dREQ (REQ_ENV_DBRENAME, 2);
		1633	req->env = env;
		1634	req->buf1 = strdup_ornull (file);
		1635	req->buf2 = strdup_ornull (database);
		1636	req->buf3 = strdup_ornull (newname);
		1637	req->uint1 = flags;
		1638	REQ_SEND;
		1639	}
		1640
		1641	DB *
		1642	db_create (DB_ENV *env = 0, U32 flags = 0)
		1643	CODE:
		1644	{
		1645	errno = db_create (&RETVAL, env, flags);
		1646	if (errno)
		1647	croak ("db_create: %s", db_strerror (errno));
		1648
		1649	if (RETVAL)
		1650	RETVAL->app_private = (void *)newSVsv (ST (0));
		1651	}
		1652	OUTPUT:
		1653	RETVAL
		1654
		1655	void
		1656	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1657	PREINIT:
		1658	CALLBACK
		1659	CODE:
		1660	{
		1661	dREQ (REQ_DB_OPEN, 2);
		1662	req->db = db;
		1663	req->txn = txnid;
		1664	req->buf1 = strdup_ornull (file);
		1665	req->buf2 = strdup_ornull (database);
		1666	req->int1 = type;
		1667	req->uint1 = flags | DB_THREAD;
		1668	req->int2 = mode;
		1669	REQ_SEND;
		1670	}
		1671
		1672	void
		1673	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1674	PREINIT:
		1675	CALLBACK
		1676	CODE:
		1677	{
		1678	dREQ (REQ_DB_CLOSE, 0);
		1679	ptr_nuke (ST (0));
		1680	req->db = db;
		1681	req->uint1 = flags;
		1682	req->sv1 = (SV *)db->app_private;
		1683	REQ_SEND;
		1684	}
		1685
		1686	#if DB_VERSION_MINOR >= 4
		1687
		1688	void
		1689	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)
		1690	PREINIT:
		1691	CALLBACK
		1692	CODE:
		1693	{
		1694	dREQ (REQ_DB_COMPACT, 2);
		1695	req->db = db;
		1696	req->txn = txn;
		1697	sv_to_dbt (&req->dbt1, start);
		1698	sv_to_dbt (&req->dbt2, stop);
		1699	req->uint1 = flags;
		1700	REQ_SEND;
		1701	}
		1702
		1703	#endif
		1704
		1705	void
		1706	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1707	PREINIT:
		1708	CALLBACK
		1709	CODE:
		1710	{
		1711	dREQ (REQ_DB_SYNC, 1);
		1712	req->db = db;
		1713	req->uint1 = flags;
		1714	REQ_SEND;
		1715	}
		1716
		1717	void
		1718	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1719	PREINIT:
		1720	CALLBACK
		1721	CODE:
		1722	{
		1723	dREQ (REQ_DB_SYNC, 1);
		1724	req->db = db;
		1725	req->buf1 = strdup (file);
		1726	req->uint1 = flags;
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
		1732	PREINIT:
		1733	CALLBACK
		1734	CODE:
		1735	{
		1736	dREQ (REQ_DB_KEY_RANGE, 2);
		1737	req->db = db;
		1738	req->txn = txn;
		1739	sv_to_dbt (&req->dbt1, key);
		1740	req->uint1 = flags;
		1741	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1742	REQ_SEND;
		1743	}
		1744
		1745	void
		1746	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1747	PREINIT:
		1748	CALLBACK
		1749	CODE:
		1750	{
		1751	dREQ (REQ_DB_PUT, 2);
		1752	req->db = db;
		1753	req->txn = txn;
		1754	sv_to_dbt (&req->dbt1, key);
		1755	sv_to_dbt (&req->dbt2, data);
		1756	req->uint1 = flags;
		1757	REQ_SEND;
		1758	}
		1759
		1760	#if DB_VERSION_MINOR >= 6
		1761
		1762	void
		1763	db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1764	PREINIT:
		1765	CALLBACK
		1766	CODE:
		1767	{
		1768	dREQ (REQ_DB_EXISTS, 2);
		1769	req->db = db;
		1770	req->txn = txn;
		1771	req->uint1 = flags;
		1772	sv_to_dbt (&req->dbt1, key);
		1773	REQ_SEND;
		1774	}
		1775
		1776	#endif
		1777
		1778	void
		1779	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1780	PREINIT:
		1781	CALLBACK
		1782	CODE:
		1783	{
		1784	//TODO: key is somtimesmutable
		1785	dREQ (REQ_DB_GET, 2);
		1786	req->db = db;
		1787	req->txn = txn;
		1788	req->uint1 = flags;
		1789	sv_to_dbt (&req->dbt1, key);
		1790	req->dbt3.flags = DB_DBT_MALLOC;
		1791	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1792	REQ_SEND;
		1793	}
		1794
		1795	void
		1796	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1797	PREINIT:
		1798	CALLBACK
		1799	CODE:
		1800	{
		1801	//TODO: key is somtimesmutable
		1802	dREQ (REQ_DB_PGET, 2);
		1803	req->db = db;
		1804	req->txn = txn;
		1805	req->uint1 = flags;
		1806
		1807	sv_to_dbt (&req->dbt1, key);
		1808
		1809	req->dbt2.flags = DB_DBT_MALLOC;
		1810	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1811
		1812	req->dbt3.flags = DB_DBT_MALLOC;
		1813	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1814	REQ_SEND;
		1815	}
		1816
		1817	void
		1818	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1819	PREINIT:
		1820	CALLBACK
		1821	CODE:
		1822	{
		1823	dREQ (REQ_DB_DEL, 2);
		1824	req->db = db;
		1825	req->txn = txn;
		1826	req->uint1 = flags;
		1827	sv_to_dbt (&req->dbt1, key);
		1828	REQ_SEND;
		1829	}
		1830
		1831	void
		1832	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1833	PREINIT:
		1834	CALLBACK
		1835	CODE:
		1836	{
		1837	dREQ (REQ_TXN_COMMIT, 0);
		1838	ptr_nuke (ST (0));
		1839	req->txn = txn;
		1840	req->uint1 = flags;
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
		1845	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1846	PREINIT:
		1847	CALLBACK
		1848	CODE:
		1849	{
		1850	dREQ (REQ_TXN_ABORT, 0);
		1851	ptr_nuke (ST (0));
		1852	req->txn = txn;
		1853	REQ_SEND;
		1854	}
		1855
		1856	void
		1857	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1858	PREINIT:
		1859	CALLBACK
		1860	CODE:
		1861	{
		1862	dREQ (REQ_TXN_FINISH, 0);
		1863	ptr_nuke (ST (0));
		1864	req->txn = txn;
		1865	req->uint1 = flags;
		1866	REQ_SEND;
		1867	}
		1868
		1869	void
		1870	db_c_close (DBC *dbc, SV *callback = 0)
		1871	PREINIT:
		1872	CALLBACK
		1873	CODE:
		1874	{
		1875	dREQ (REQ_C_CLOSE, 0);
		1876	ptr_nuke (ST (0));
		1877	req->dbc = dbc;
		1878	REQ_SEND;
		1879	}
		1880
		1881	void
		1882	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1883	PREINIT:
		1884	CALLBACK
		1885	CODE:
		1886	{
		1887	dREQ (REQ_C_COUNT, 1);
		1888	req->dbc = dbc;
		1889	req->sv1 = SvREFCNT_inc (count);
		1890	REQ_SEND;
		1891	}
		1892
		1893	void
		1894	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1895	PREINIT:
		1896	CALLBACK
		1897	CODE:
		1898	{
		1899	dREQ (REQ_C_PUT, 1);
		1900	req->dbc = dbc;
		1901	sv_to_dbt (&req->dbt1, key);
		1902	sv_to_dbt (&req->dbt2, data);
		1903	req->uint1 = flags;
		1904	REQ_SEND;
		1905	}
		1906
		1907	void
		1908	db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1909	PREINIT:
		1910	CALLBACK
		1911	CODE:
		1912	{
		1913	if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
		1914	croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
		1915
		1916	{
		1917	dREQ (REQ_C_GET, 1);
		1918	req->dbc = dbc;
		1919	req->uint1 = flags;
		1920	if (flags & DB_OPFLAGS_MASK == DB_SET)
		1921	sv_to_dbt (&req->dbt1, key);
		1922	else
		1923	{
		1924	if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
		1925	sv_to_dbt (&req->dbt1, key);
		1926	else
		1927	req->dbt1.flags = DB_DBT_MALLOC;
		1928
		1929	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1930	}
		1931
		1932	if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
		1933	|| flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
		1934	sv_to_dbt (&req->dbt3, data);
		1935	else
		1936	req->dbt3.flags = DB_DBT_MALLOC;
		1937
		1938	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1939	REQ_SEND;
		1940	}
		1941	}
		1942
		1943	void
		1944	db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
		1945	PREINIT:
		1946	CALLBACK
		1947	CODE:
		1948	{
		1949	if (flags & DB_OPFLAGS_MASK != DB_SET && SvREADONLY (key))
		1950	croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
		1951
		1952	{
		1953	dREQ (REQ_C_PGET, 1);
		1954	req->dbc = dbc;
		1955	req->uint1 = flags;
		1956	if (flags & DB_OPFLAGS_MASK == DB_SET)
		1957	sv_to_dbt (&req->dbt1, key);
		1958	else
		1959	{
		1960	if (flags & DB_OPFLAGS_MASK == DB_SET_RANGE)
		1961	sv_to_dbt (&req->dbt1, key);
		1962	else
		1963	req->dbt1.flags = DB_DBT_MALLOC;
		1964
		1965	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1966	}
		1967
		1968	req->dbt2.flags = DB_DBT_MALLOC;
		1969	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1970
		1971	if (flags & DB_OPFLAGS_MASK == DB_GET_BOTH
		1972	|| flags & DB_OPFLAGS_MASK == DB_GET_BOTH_RANGE)
		1973	sv_to_dbt (&req->dbt3, data);
		1974	else
		1975	req->dbt3.flags = DB_DBT_MALLOC;
		1976
		1977	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1978	REQ_SEND;
		1979	}
		1980	}
		1981
		1982	void
		1983	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1984	PREINIT:
		1985	CALLBACK
		1986	CODE:
		1987	{
		1988	dREQ (REQ_C_DEL, 1);
		1989	req->dbc = dbc;
		1990	req->uint1 = flags;
		1991	REQ_SEND;
		1992	}
		1993
		1994
		1995	#if DB_VERSION_MINOR >= 3
		1996
		1997	void
		1998	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1999	PREINIT:
		2000	CALLBACK
		2001	CODE:
		2002	{
		2003	dREQ (REQ_SEQ_OPEN, 2);
		2004	req->seq = seq;
		2005	req->txn = txnid;
		2006	req->uint1 = flags | DB_THREAD;
		2007	sv_to_dbt (&req->dbt1, key);
		2008	REQ_SEND;
		2009	}
		2010
		2011	void
		2012	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		2013	PREINIT:
		2014	CALLBACK
		2015	CODE:
		2016	{
		2017	dREQ (REQ_SEQ_CLOSE, 0);
		2018	ptr_nuke (ST (0));
		2019	req->seq = seq;
		2020	req->uint1 = flags;
		2021	REQ_SEND;
		2022	}
		2023
		2024	void
		2025	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		2026	PREINIT:
		2027	CALLBACK
		2028	CODE:
		2029	{
		2030	dREQ (REQ_SEQ_GET, 2);
		2031	req->seq = seq;
		2032	req->txn = txnid;
		2033	req->int1 = delta;
		2034	req->uint1 = flags;
		2035	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		2036	REQ_SEND;
		2037	}
		2038
		2039	void
		2040	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		2041	PREINIT:
		2042	CALLBACK
		2043	CODE:
		2044	{
		2045	dREQ (REQ_SEQ_REMOVE, 2);
		2046	req->seq = seq;
		2047	req->txn = txnid;
		2048	req->uint1 = flags;
		2049	REQ_SEND;
		2050	}
		2051
		2052	#endif
		2053
		2054
		2055	MODULE = BDB PACKAGE = BDB::Env
		2056
		2057	void
		2058	DESTROY (DB_ENV_ornuked *env)
		2059	CODE:
		2060	if (env)
		2061	env->close (env, 0);
		2062
		2063	int set_data_dir (DB_ENV *env, const char *dir)
		2064	CODE:
		2065	RETVAL = env->set_data_dir (env, dir);
		2066	OUTPUT:
		2067	RETVAL
		2068
		2069	int set_tmp_dir (DB_ENV *env, const char *dir)
		2070	CODE:
		2071	RETVAL = env->set_tmp_dir (env, dir);
		2072	OUTPUT:
		2073	RETVAL
		2074
		2075	int set_lg_dir (DB_ENV *env, const char *dir)
		2076	CODE:
		2077	RETVAL = env->set_lg_dir (env, dir);
		2078	OUTPUT:
		2079	RETVAL
		2080
		2081	int set_shm_key (DB_ENV *env, long shm_key)
		2082	CODE:
		2083	RETVAL = env->set_shm_key (env, shm_key);
		2084	OUTPUT:
		2085	RETVAL
		2086
		2087	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		2088	CODE:
		2089	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		2090	OUTPUT:
		2091	RETVAL
		2092
		2093	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
		2094	CODE:
		2095	RETVAL = env->set_flags (env, flags, onoff);
		2096	OUTPUT:
		2097	RETVAL
		2098
		2099	#if DB_VERSION_MINOR >= 7
		2100
		2101	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		2102	CODE:
		2103	RETVAL = env->set_intermediate_dir_mode (env, mode);
		2104	OUTPUT:
		2105	RETVAL
		2106
		2107	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		2108	CODE:
		2109	RETVAL = env->log_set_config (env, flags, onoff);
		2110	OUTPUT:
		2111	RETVAL
		2112
		2113	#endif
		2114
		2115
		2116	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		2117	CODE:
		2118	env->set_errfile (env, errfile);
		2119
		2120	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		2121	CODE:
		2122	env->set_msgfile (env, msgfile);
		2123
		2124	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2125	CODE:
		2126	RETVAL = env->set_verbose (env, which, onoff);
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		2131	CODE:
		2132	RETVAL = env->set_encrypt (env, password, flags);
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2137	CODE:
		2138	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		2139	OUTPUT:
		2140	RETVAL
		2141
		2142	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2143	CODE:
		2144	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2145	OUTPUT:
		2146	RETVAL
		2147
		2148	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2149	CODE:
		2150	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2151	OUTPUT:
		2152	RETVAL
		2153
		2154	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2155	CODE:
		2156	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2157	OUTPUT:
		2158	RETVAL
		2159
		2160	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2161	CODE:
		2162	RETVAL = env->set_lk_detect (env, detect);
		2163	OUTPUT:
		2164	RETVAL
		2165
		2166	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2167	CODE:
		2168	RETVAL = env->set_lk_max_lockers (env, max);
		2169	OUTPUT:
		2170	RETVAL
		2171
		2172	int set_lk_max_locks (DB_ENV *env, U32 max)
		2173	CODE:
		2174	RETVAL = env->set_lk_max_locks (env, max);
		2175	OUTPUT:
		2176	RETVAL
		2177
		2178	int set_lk_max_objects (DB_ENV *env, U32 max)
		2179	CODE:
		2180	RETVAL = env->set_lk_max_objects (env, max);
		2181	OUTPUT:
		2182	RETVAL
		2183
		2184	int set_lg_bsize (DB_ENV *env, U32 max)
		2185	CODE:
		2186	RETVAL = env->set_lg_bsize (env, max);
		2187	OUTPUT:
		2188	RETVAL
		2189
		2190	int set_lg_max (DB_ENV *env, U32 max)
		2191	CODE:
		2192	RETVAL = env->set_lg_max (env, max);
		2193	OUTPUT:
		2194	RETVAL
		2195
		2196	#if DB_VERSION_MINOR >= 4
		2197
		2198	int mutex_set_max (DB_ENV *env, U32 max)
		2199	CODE:
		2200	RETVAL = env->mutex_set_max (env, max);
		2201	OUTPUT:
		2202	RETVAL
		2203
		2204	int mutex_set_increment (DB_ENV *env, U32 increment)
		2205	CODE:
		2206	RETVAL = env->mutex_set_increment (env, increment);
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2211	CODE:
		2212	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2213	OUTPUT:
		2214	RETVAL
		2215
		2216	int mutex_set_align (DB_ENV *env, U32 align)
		2217	CODE:
		2218	RETVAL = env->mutex_set_align (env, align);
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	#endif
		2223
		2224	DB_TXN *
		2225	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		2226	CODE:
		2227	errno = env->txn_begin (env, parent, &RETVAL, flags);
		2228	if (errno)
		2229	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		2230	OUTPUT:
		2231	RETVAL
		2232
		2233	#if DB_VERSION_MINOR >= 5
		2234
		2235	DB_TXN *
		2236	cdsgroup_begin (DB_ENV *env)
		2237	CODE:
		2238	errno = env->cdsgroup_begin (env, &RETVAL);
		2239	if (errno)
		2240	croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
		2241	OUTPUT:
		2242	RETVAL
		2243
		2244	#endif
		2245
		2246	MODULE = BDB PACKAGE = BDB::Db
		2247
		2248	void
		2249	DESTROY (DB_ornuked *db)
		2250	CODE:
		2251	if (db)
		2252	{
		2253	SV *env = (SV *)db->app_private;
		2254	db->close (db, 0);
		2255	SvREFCNT_dec (env);
		2256	}
		2257
		2258	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		2259	CODE:
		2260	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		2261	OUTPUT:
		2262	RETVAL
		2263
		2264	int set_flags (DB *db, U32 flags)
		2265	CODE:
		2266	RETVAL = db->set_flags (db, flags);
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	int set_encrypt (DB *db, const char *password, U32 flags)
		2271	CODE:
		2272	RETVAL = db->set_encrypt (db, password, flags);
		2273	OUTPUT:
		2274	RETVAL
		2275
		2276	int set_lorder (DB *db, int lorder)
		2277	CODE:
		2278	RETVAL = db->set_lorder (db, lorder);
		2279	OUTPUT:
		2280	RETVAL
		2281
		2282	int set_bt_minkey (DB *db, U32 minkey)
		2283	CODE:
		2284	RETVAL = db->set_bt_minkey (db, minkey);
		2285	OUTPUT:
		2286	RETVAL
		2287
		2288	int set_re_delim (DB *db, int delim)
		2289	CODE:
		2290	RETVAL = db->set_re_delim (db, delim);
		2291	OUTPUT:
		2292	RETVAL
		2293
		2294	int set_re_pad (DB *db, int re_pad)
		2295	CODE:
		2296	RETVAL = db->set_re_pad (db, re_pad);
		2297	OUTPUT:
		2298	RETVAL
		2299
		2300	int set_re_source (DB *db, char *source)
		2301	CODE:
		2302	RETVAL = db->set_re_source (db, source);
		2303	OUTPUT:
		2304	RETVAL
		2305
		2306	int set_re_len (DB *db, U32 re_len)
		2307	CODE:
		2308	RETVAL = db->set_re_len (db, re_len);
		2309	OUTPUT:
		2310	RETVAL
		2311
		2312	int set_h_ffactor (DB *db, U32 h_ffactor)
		2313	CODE:
		2314	RETVAL = db->set_h_ffactor (db, h_ffactor);
		2315	OUTPUT:
		2316	RETVAL
		2317
		2318	int set_h_nelem (DB *db, U32 h_nelem)
		2319	CODE:
		2320	RETVAL = db->set_h_nelem (db, h_nelem);
		2321	OUTPUT:
		2322	RETVAL
		2323
		2324	int set_q_extentsize (DB *db, U32 extentsize)
		2325	CODE:
		2326	RETVAL = db->set_q_extentsize (db, extentsize);
		2327	OUTPUT:
		2328	RETVAL
		2329
		2330	DBC *
		2331	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2332	CODE:
		2333	errno = db->cursor (db, txn, &RETVAL, flags);
		2334	if (errno)
		2335	croak ("DB->cursor: %s", db_strerror (errno));
		2336	OUTPUT:
		2337	RETVAL
		2338
		2339	#if DB_VERSION_MINOR >= 3
		2340
		2341	DB_SEQUENCE *
		2342	sequence (DB *db, U32 flags = 0)
		2343	CODE:
		2344	{
		2345	errno = db_sequence_create (&RETVAL, db, flags);
		2346	if (errno)
		2347	croak ("db_sequence_create: %s", db_strerror (errno));
		2348	}
		2349	OUTPUT:
		2350	RETVAL
		2351
		2352	#endif
		2353
		2354
		2355	MODULE = BDB PACKAGE = BDB::Txn
		2356
		2357	void
		2358	DESTROY (DB_TXN_ornuked *txn)
		2359	CODE:
		2360	if (txn)
		2361	txn->abort (txn);
		2362
		2363	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		2364	CODE:
		2365	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		2366	OUTPUT:
		2367	RETVAL
		2368
		2369	int failed (DB_TXN *txn)
		2370	CODE:
		2371	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2372	OUTPUT:
		2373	RETVAL
		2374
		2375
		2376	MODULE = BDB PACKAGE = BDB::Cursor
		2377
		2378	void
		2379	DESTROY (DBC_ornuked *dbc)
		2380	CODE:
		2381	if (dbc)
		2382	dbc->c_close (dbc);
		2383
		2384	#if DB_VERSION_MINOR >= 6
		2385
		2386	int set_priority (DBC *dbc, int priority)
		2387	CODE:
		2388	dbc->set_priority (dbc, priority);
		2389
		2390	#endif
		2391
		2392	#if DB_VERSION_MINOR >= 3
		2393
		2394	MODULE = BDB PACKAGE = BDB::Sequence
		2395
		2396	void
		2397	DESTROY (DB_SEQUENCE_ornuked *seq)
		2398	CODE:
		2399	if (seq)
		2400	seq->close (seq, 0);
		2401
		2402	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2403	CODE:
		2404	RETVAL = seq->initial_value (seq, value);
		2405	OUTPUT:
		2406	RETVAL
		2407
		2408	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2409	CODE:
		2410	RETVAL = seq->set_cachesize (seq, size);
		2411	OUTPUT:
		2412	RETVAL
		2413
		2414	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2415	CODE:
		2416	RETVAL = seq->set_flags (seq, flags);
		2417	OUTPUT:
		2418	RETVAL
		2419
		2420	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2421	CODE:
		2422	RETVAL = seq->set_range (seq, min, max);
		2423	OUTPUT:
		2424	RETVAL
		2425
		2426	#endif
		2427
		2428

Diff Legend

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