ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/BDB/BDB.xs

Comparing BDB/BDB.xs (file contents):
Revision 1.5 by root, Mon Feb 5 23:46:15 2007 UTC vs.
Revision 1.41 by root, Wed Jul 9 12:15:36 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/types.h>	21	#include <sys/types.h>
24	#include <limits.h>	22	#include <limits.h>
25	#include <unistd.h>
26	#include <fcntl.h>	23	#include <fcntl.h>
27		24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
28	#include <db.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
29		35
30	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
31	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
32		38
33	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
34	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
35	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
36	*/	42	typedef DB DB_ornull;
37	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
38	# if __i386 || __x86_64	44
39	# define WORDACCESS_UNSAFE 0	45	typedef DB_ENV DB_ENV_ornuked;
40	# else	46	typedef DB_TXN DB_TXN_ornuked;
41	# define WORDACCESS_UNSAFE 1	47	typedef DBC DBC_ornuked;
42	# endif	48	typedef DB DB_ornuked;
		49	typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
		50
		51	typedef SV SV8; /* byte-sv, used for argument-checking */
		52	typedef char *bdb_filename;
		53
		54	static SV *prepare_cb;
		55
		56	#if DB_VERSION_MINOR >= 6
		57	# define c_close close
		58	# define c_count count
		59	# define c_del del
		60	# define c_dup dup
		61	# define c_get get
		62	# define c_pget pget
		63	# define c_put put
43	#endif	64	#endif
44		65
45	typedef DB_ENV DB_ENV_ornull;
46	typedef DB_TXN DB_TXN_ornull;
47	typedef DBC DBC_ornull;
48	typedef DB DB_ornull;
49
50	typedef SV SV8; /* byte-sv, used for argument-checking */
51	typedef char *octetstring;
52
53	static SV *prepare_cb;
54
55	static inline char *	66	static char *
		67	get_bdb_filename (SV *sv)
		68	{
		69	if (!SvOK (sv))
		70	return 0;
		71
		72	#if _WIN32
		73	/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
		74	{
		75	STRLEN len;
		76	char *src = SvPVbyte (sv, len);
		77	SV *t1 = sv_newmortal ();
		78	SV *t2 = sv_newmortal ();
		79
		80	sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
		81	sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
		82
		83	len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
		84	len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
		85	SvPOK_only (t2);
		86	SvPVX (t2)[len] = 0;
		87	SvCUR_set (t2, len);
		88
		89	return SvPVX (t2);
		90	}
		91	#else
		92	return SvPVbyte_nolen (sv);
		93	#endif
		94	}
		95
		96	static void
		97	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		98	{
		99	printf ("err[%s]\n", msg);
		100	}
		101
		102	static void
		103	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		104	{
		105	printf ("msg[%s]\n", msg);
		106	}
		107
		108	static char *
56	strdup_ornull (const char *s)	109	strdup_ornull (const char *s)
57	{	110	{
58	return s ? strdup (s) : 0;	111	return s ? strdup (s) : 0;
59	}	112	}
60		113
61	inline void	114	static void
62	sv_to_dbt (DBT *dbt, SV *sv)	115	sv_to_dbt (DBT *dbt, SV *sv)
63	{	116	{
64	STRLEN len;	117	STRLEN len;
65	char *data = SvPVbyte (sv, len);	118	char *data = SvPVbyte (sv, len);
66		119
67	dbt->data = malloc (len);	120	dbt->data = malloc (len);
68	memcpy (dbt->data, data, len);	121	memcpy (dbt->data, data, len);
69	dbt->size = len;	122	dbt->size = len;
		123	dbt->flags = DB_DBT_REALLOC;
70	}	124	}
71		125
72	inline void	126	static void
73	dbt_to_sv (SV *sv, DBT *dbt)	127	dbt_to_sv (SV *sv, DBT *dbt)
74	{	128	{
		129	if (sv)
		130	{
75	SvREADONLY_off (sv);	131	SvREADONLY_off (sv);
76	sv_setpvn_mg (sv, dbt->data, dbt->size);	132	sv_setpvn_mg (sv, dbt->data, dbt->size);
		133	SvREFCNT_dec (sv);
		134	}
77		135
78	free (dbt->data);	136	free (dbt->data);
79	}	137	}
80		138
81	enum {	139	enum {
82	REQ_QUIT,	140	REQ_QUIT,
83	REQ_ENV_OPEN, REQ_ENV_CLOSE,	141	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		142	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
84	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET,	143	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
		144	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
85	REQ_TXN_COMMIT, REQ_TXN_ABORT,	145	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		146	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		147	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
86	};	148	};
87		149
88	typedef struct aio_cb	150	typedef struct bdb_cb
89	{	151	{
90	struct aio_cb *volatile next;	152	struct bdb_cb *volatile next;
91	SV *callback;	153	SV *callback;
92	int type, pri, result;	154	int type, pri, result;
93		155
94	DB_ENV *env;	156	DB_ENV *env;
95	DB *db;	157	DB *db;
96	DB_TXN *txn;	158	DB_TXN *txn;
97	DBC *cursor;	159	DBC *dbc;
		160
		161	UV uv1;
98	int int1, int2;	162	int int1, int2;
99	U32 uint1, uint2;	163	U32 uint1, uint2;
100	char *buf1, *buf2;	164	char *buf1, *buf2, *buf3;
101	SV *sv1, *sv2;	165	SV *sv1, *sv2, *sv3;
102		166
103	DBT dbt1, dbt2, dbt3;	167	DBT dbt1, dbt2, dbt3;
104	} aio_cb;	168	DB_KEY_RANGE key_range;
		169	DB_SEQUENCE *seq;
		170	db_seq_t seq_t;
		171	} bdb_cb;
105		172
106	typedef aio_cb *aio_req;	173	typedef bdb_cb *bdb_req;
107		174
108	enum {	175	enum {
109	PRI_MIN = -4,	176	PRI_MIN = -4,
110	PRI_MAX = 4,	177	PRI_MAX = 4,
111		178
…		…
114	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	181	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
115	};	182	};
116		183
117	#define AIO_TICKS ((1000000 + 1023) >> 10)	184	#define AIO_TICKS ((1000000 + 1023) >> 10)
118		185
		186	static SV *on_next_submit;
		187
119	static unsigned int max_poll_time = 0;	188	static unsigned int max_poll_time = 0;
120	static unsigned int max_poll_reqs = 0;	189	static unsigned int max_poll_reqs = 0;
121		190
122	/* calculcate time difference in ~1/AIO_TICKS of a second */	191	/* calculcate time difference in ~1/AIO_TICKS of a second */
123	static int tvdiff (struct timeval *tv1, struct timeval *tv2)	192	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
…		…
128		197
129	static int next_pri = DEFAULT_PRI + PRI_BIAS;	198	static int next_pri = DEFAULT_PRI + PRI_BIAS;
130		199
131	static unsigned int started, idle, wanted;	200	static unsigned int started, idle, wanted;
132		201
133	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
134	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
135	#else
136	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
137	#endif
138
139	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
140	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
141
142	/* worker threads management */	202	/* worker threads management */
143	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	203	static mutex_t wrklock = X_MUTEX_INIT;
144		204
145	typedef struct worker {	205	typedef struct worker {
146	/* locked by wrklock */	206	/* locked by wrklock */
147	struct worker *prev, *next;	207	struct worker *prev, *next;
148		208
149	pthread_t tid;	209	thread_t tid;
150		210
151	/* locked by reslock, reqlock or wrklock */	211	/* locked by reslock, reqlock or wrklock */
152	aio_req req; /* currently processed request */	212	bdb_req req; /* currently processed request */
153	void *dbuf;	213	void *dbuf;
154	DIR *dirp;	214	DIR *dirp;
155	} worker;	215	} worker;
156		216
157	static worker wrk_first = { &wrk_first, &wrk_first, 0 };	217	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
…		…
169	}	229	}
170		230
171	static volatile unsigned int nreqs, nready, npending;	231	static volatile unsigned int nreqs, nready, npending;
172	static volatile unsigned int max_idle = 4;	232	static volatile unsigned int max_idle = 4;
173	static volatile unsigned int max_outstanding = 0xffffffff;	233	static volatile unsigned int max_outstanding = 0xffffffff;
174	static int respipe [2];	234	static int respipe_osf [2], respipe [2] = { -1, -1 };
175		235
176	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	236	static mutex_t reslock = X_MUTEX_INIT;
177	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	237	static mutex_t reqlock = X_MUTEX_INIT;
178	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	238	static cond_t reqwait = X_COND_INIT;
179		239
180	#if WORDACCESS_UNSAFE	240	#if WORDACCESS_UNSAFE
181		241
182	static unsigned int get_nready ()	242	static unsigned int get_nready (void)
183	{	243	{
184	unsigned int retval;	244	unsigned int retval;
185		245
186	LOCK (reqlock);	246	X_LOCK (reqlock);
187	retval = nready;	247	retval = nready;
188	UNLOCK (reqlock);	248	X_UNLOCK (reqlock);
189		249
190	return retval;	250	return retval;
191	}	251	}
192		252
193	static unsigned int get_npending ()	253	static unsigned int get_npending (void)
194	{	254	{
195	unsigned int retval;	255	unsigned int retval;
196		256
197	LOCK (reslock);	257	X_LOCK (reslock);
198	retval = npending;	258	retval = npending;
199	UNLOCK (reslock);	259	X_UNLOCK (reslock);
200		260
201	return retval;	261	return retval;
202	}	262	}
203		263
204	static unsigned int get_nthreads ()	264	static unsigned int get_nthreads (void)
205	{	265	{
206	unsigned int retval;	266	unsigned int retval;
207		267
208	LOCK (wrklock);	268	X_LOCK (wrklock);
209	retval = started;	269	retval = started;
210	UNLOCK (wrklock);	270	X_UNLOCK (wrklock);
211		271
212	return retval;	272	return retval;
213	}	273	}
214		274
215	#else	275	#else
…		…
224	* a somewhat faster data structure might be nice, but	284	* a somewhat faster data structure might be nice, but
225	* with 8 priorities this actually needs <20 insns	285	* with 8 priorities this actually needs <20 insns
226	* per shift, the most expensive operation.	286	* per shift, the most expensive operation.
227	*/	287	*/
228	typedef struct {	288	typedef struct {
229	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */	289	bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
230	int size;	290	int size;
231	} reqq;	291	} reqq;
232		292
233	static reqq req_queue;	293	static reqq req_queue;
234	static reqq res_queue;	294	static reqq res_queue;
235		295
236	int reqq_push (reqq *q, aio_req req)	296	int reqq_push (reqq *q, bdb_req req)
237	{	297	{
238	int pri = req->pri;	298	int pri = req->pri;
239	req->next = 0;	299	req->next = 0;
240		300
241	if (q->qe[pri])	301	if (q->qe[pri])
…		…
247	q->qe[pri] = q->qs[pri] = req;	307	q->qe[pri] = q->qs[pri] = req;
248		308
249	return q->size++;	309	return q->size++;
250	}	310	}
251		311
252	aio_req reqq_shift (reqq *q)	312	bdb_req reqq_shift (reqq *q)
253	{	313	{
254	int pri;	314	int pri;
255		315
256	if (!q->size)	316	if (!q->size)
257	return 0;	317	return 0;
258		318
259	--q->size;	319	--q->size;
260		320
261	for (pri = NUM_PRI; pri--; )	321	for (pri = NUM_PRI; pri--; )
262	{	322	{
263	aio_req req = q->qs[pri];	323	bdb_req req = q->qs[pri];
264		324
265	if (req)	325	if (req)
266	{	326	{
267	if (!(q->qs[pri] = req->next))	327	if (!(q->qs[pri] = req->next))
268	q->qe[pri] = 0;	328	q->qe[pri] = 0;
…		…
272	}	332	}
273		333
274	abort ();	334	abort ();
275	}	335	}
276		336
277	static int poll_cb ();	337	static int poll_cb (void);
278	static void req_free (aio_req req);	338	static void req_free (bdb_req req);
279	static void req_cancel (aio_req req);	339	static void req_cancel (bdb_req req);
280		340
281	static int req_invoke (aio_req req)	341	static int req_invoke (bdb_req req)
282	{	342	{
283	dSP;	343	dSP;
284		344
285	if (SvOK (req->callback))	345	if (req->callback)
286	{	346	{
287	ENTER;	347	ENTER;
288	SAVETMPS;	348	SAVETMPS;
289	PUSHMARK (SP);	349	PUSHMARK (SP);
290	EXTEND (SP, 1);
291		350
292	switch (req->type)	351	switch (req->type)
293	{	352	{
		353	case REQ_DB_CLOSE:
		354	SvREFCNT_dec (req->sv1);
		355	break;
		356
294	case REQ_DB_GET:	357	case REQ_DB_GET:
295	case REQ_DB_PGET:	358	case REQ_DB_PGET:
296	dbt_to_sv (req->sv1, &req->dbt3);	359	dbt_to_sv (req->sv3, &req->dbt3);
		360	break;
		361
		362	case REQ_C_GET:
		363	case REQ_C_PGET:
		364	dbt_to_sv (req->sv1, &req->dbt1);
		365	dbt_to_sv (req->sv2, &req->dbt2);
		366	dbt_to_sv (req->sv3, &req->dbt3);
		367	break;
		368
		369	case REQ_DB_PUT:
		370	case REQ_C_PUT:
		371	dbt_to_sv (0, &req->dbt1);
		372	dbt_to_sv (0, &req->dbt2);
		373	break;
		374
		375	case REQ_DB_KEY_RANGE:
		376	{
		377	AV *av = newAV ();
		378
		379	av_push (av, newSVnv (req->key_range.less));
		380	av_push (av, newSVnv (req->key_range.equal));
		381	av_push (av, newSVnv (req->key_range.greater));
		382
		383	SvREADONLY_off (req->sv1);
		384	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
297	SvREFCNT_dec (req->sv1);	385	SvREFCNT_dec (req->sv1);
298	break;	386	}
		387	break;
299		388
300	case REQ_DB_CLOSE:	389	case REQ_SEQ_GET:
		390	SvREADONLY_off (req->sv1);
		391
		392	if (sizeof (IV) > 4)
		393	sv_setiv_mg (req->sv1, (IV)req->seq_t);
		394	else
		395	sv_setnv_mg (req->sv1, (NV)req->seq_t);
		396
301	SvREFCNT_dec (req->sv1);	397	SvREFCNT_dec (req->sv1);
302	break;	398	break;
303	}	399	}
304		400
305	errno = req->result;	401	errno = req->result;
…		…
313	}	409	}
314		410
315	return !SvTRUE (ERRSV);	411	return !SvTRUE (ERRSV);
316	}	412	}
317		413
318	static void req_free (aio_req req)	414	static void req_free (bdb_req req)
319	{	415	{
320	free (req->buf1);	416	free (req->buf1);
321	free (req->buf2);	417	free (req->buf2);
		418	free (req->buf3);
322	Safefree (req);	419	Safefree (req);
323	}	420	}
324		421
325	static void *aio_proc (void *arg);	422	#ifdef USE_SOCKETS_AS_HANDLES
		423	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		424	#else
		425	# define TO_SOCKET(x) (x)
		426	#endif
		427
		428	static void
		429	create_respipe (void)
		430	{
		431	#ifdef _WIN32
		432	int arg; /* argg */
		433	#endif
		434	int old_readfd = respipe [0];
		435
		436	if (respipe [1] >= 0)
		437	respipe_close (TO_SOCKET (respipe [1]));
		438
		439	#ifdef _WIN32
		440	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		441	#else
		442	if (pipe (respipe))
		443	#endif
		444	croak ("unable to initialize result pipe");
		445
		446	if (old_readfd >= 0)
		447	{
		448	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		449	croak ("unable to initialize result pipe(2)");
		450
		451	respipe_close (respipe [0]);
		452	respipe [0] = old_readfd;
		453	}
		454
		455	#ifdef _WIN32
		456	arg = 1;
		457	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		458	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		459	#else
		460	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		461	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		462	#endif
		463	croak ("unable to initialize result pipe(3)");
		464
		465	respipe_osf [0] = TO_SOCKET (respipe [0]);
		466	respipe_osf [1] = TO_SOCKET (respipe [1]);
		467	}
		468
		469	X_THREAD_PROC (bdb_proc);
326		470
327	static void start_thread (void)	471	static void start_thread (void)
328	{	472	{
329	sigset_t fullsigset, oldsigset;
330	pthread_attr_t attr;
331
332	worker *wrk = calloc (1, sizeof (worker));	473	worker *wrk = calloc (1, sizeof (worker));
333		474
334	if (!wrk)	475	if (!wrk)
335	croak ("unable to allocate worker thread data");	476	croak ("unable to allocate worker thread data");
336		477
337	pthread_attr_init (&attr);
338	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
339	#ifdef PTHREAD_SCOPE_PROCESS
340	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
341	#endif
342
343	sigfillset (&fullsigset);
344
345	LOCK (wrklock);	478	X_LOCK (wrklock);
346	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
347
348	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	479	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
349	{	480	{
350	wrk->prev = &wrk_first;	481	wrk->prev = &wrk_first;
351	wrk->next = wrk_first.next;	482	wrk->next = wrk_first.next;
352	wrk_first.next->prev = wrk;	483	wrk_first.next->prev = wrk;
353	wrk_first.next = wrk;	484	wrk_first.next = wrk;
354	++started;	485	++started;
355	}	486	}
356	else	487	else
357	free (wrk);	488	free (wrk);
358		489
359	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
360	UNLOCK (wrklock);	490	X_UNLOCK (wrklock);
361	}	491	}
362		492
363	static void maybe_start_thread ()	493	static void maybe_start_thread (void)
364	{	494	{
365	if (get_nthreads () >= wanted)	495	if (get_nthreads () >= wanted)
366	return;	496	return;
367		497
368	/* todo: maybe use idle here, but might be less exact */	498	/* todo: maybe use idle here, but might be less exact */
…		…
370	return;	500	return;
371		501
372	start_thread ();	502	start_thread ();
373	}	503	}
374		504
375	static void req_send (aio_req req)	505	static void req_send (bdb_req req)
376	{	506	{
377	SV *wait_callback = 0;	507	SV *wait_callback = 0;
378		508
		509	if (on_next_submit)
		510	{
		511	dSP;
		512	SV *cb = sv_2mortal (on_next_submit);
		513
		514	on_next_submit = 0;
		515
		516	PUSHMARK (SP);
		517	PUTBACK;
		518	call_sv (cb, G_DISCARD | G_EVAL);
		519	}
		520
379	// synthesize callback if none given	521	// synthesize callback if none given
380	if (!SvOK (req->callback))	522	if (!req->callback)
381	{	523	{
		524	int count;
		525
382	dSP;	526	dSP;
383	PUSHMARK (SP);	527	PUSHMARK (SP);
384	PUTBACK;	528	PUTBACK;
385	int count = call_sv (prepare_cb, G_ARRAY);	529	count = call_sv (prepare_cb, G_ARRAY);
386	SPAGAIN;	530	SPAGAIN;
387		531
388	if (count != 2)	532	if (count != 2)
389	croak ("prepare callback must return exactly two values\n");	533	croak ("prepare callback must return exactly two values\n");
390		534
391	wait_callback = SvREFCNT_inc (POPs);	535	wait_callback = POPs;
392	SvREFCNT_dec (req->callback);	536	SvREFCNT_dec (req->callback);
393	req->callback = SvREFCNT_inc (POPs);	537	req->callback = SvREFCNT_inc (POPs);
394	}	538	}
395		539
396	++nreqs;	540	++nreqs;
397		541
398	LOCK (reqlock);	542	X_LOCK (reqlock);
399	++nready;	543	++nready;
400	reqq_push (&req_queue, req);	544	reqq_push (&req_queue, req);
401	pthread_cond_signal (&reqwait);	545	X_COND_SIGNAL (reqwait);
402	UNLOCK (reqlock);	546	X_UNLOCK (reqlock);
403		547
404	maybe_start_thread ();	548	maybe_start_thread ();
405		549
406	if (wait_callback)	550	if (wait_callback)
407	{	551	{
408	dSP;	552	dSP;
409	PUSHMARK (SP);	553	PUSHMARK (SP);
410	PUTBACK;	554	PUTBACK;
411	call_sv (wait_callback, G_DISCARD);	555	call_sv (wait_callback, G_DISCARD);
412	SvREFCNT_dec (wait_callback);
413	}	556	}
414	}	557	}
415		558
416	static void end_thread (void)	559	static void end_thread (void)
417	{	560	{
418	aio_req req;	561	bdb_req req;
419		562
420	Newz (0, req, 1, aio_cb);	563	Newz (0, req, 1, bdb_cb);
421		564
422	req->type = REQ_QUIT;	565	req->type = REQ_QUIT;
423	req->pri = PRI_MAX + PRI_BIAS;	566	req->pri = PRI_MAX + PRI_BIAS;
424		567
425	LOCK (reqlock);	568	X_LOCK (reqlock);
426	reqq_push (&req_queue, req);	569	reqq_push (&req_queue, req);
427	pthread_cond_signal (&reqwait);	570	X_COND_SIGNAL (reqwait);
428	UNLOCK (reqlock);	571	X_UNLOCK (reqlock);
429		572
430	LOCK (wrklock);	573	X_LOCK (wrklock);
431	--started;	574	--started;
432	UNLOCK (wrklock);	575	X_UNLOCK (wrklock);
433	}	576	}
434		577
435	static void set_max_idle (int nthreads)	578	static void set_max_idle (int nthreads)
436	{	579	{
437	if (WORDACCESS_UNSAFE) LOCK (reqlock);	580	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
438	max_idle = nthreads <= 0 ? 1 : nthreads;	581	max_idle = nthreads <= 0 ? 1 : nthreads;
439	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	582	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
440	}	583	}
441		584
442	static void min_parallel (int nthreads)	585	static void min_parallel (int nthreads)
443	{	586	{
444	if (wanted < nthreads)	587	if (wanted < nthreads)
…		…
452		595
453	while (started > wanted)	596	while (started > wanted)
454	end_thread ();	597	end_thread ();
455	}	598	}
456		599
457	static void poll_wait ()	600	static void poll_wait (void)
458	{	601	{
459	fd_set rfd;	602	fd_set rfd;
460		603
461	while (nreqs)	604	while (nreqs)
462	{	605	{
463	int size;	606	int size;
464	if (WORDACCESS_UNSAFE) LOCK (reslock);	607	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
465	size = res_queue.size;	608	size = res_queue.size;
466	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	609	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
467		610
468	if (size)	611	if (size)
469	return;	612	return;
470		613
471	maybe_start_thread ();	614	maybe_start_thread ();
472		615
473	FD_ZERO(&rfd);	616	FD_ZERO (&rfd);
474	FD_SET(respipe [0], &rfd);	617	FD_SET (respipe [0], &rfd);
475		618
476	select (respipe [0] + 1, &rfd, 0, 0, 0);	619	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
477	}	620	}
478	}	621	}
479		622
480	static int poll_cb ()	623	static int poll_cb (void)
481	{	624	{
482	dSP;	625	dSP;
483	int count = 0;	626	int count = 0;
484	int maxreqs = max_poll_reqs;	627	int maxreqs = max_poll_reqs;
485	int do_croak = 0;	628	int do_croak = 0;
486	struct timeval tv_start, tv_now;	629	struct timeval tv_start, tv_now;
487	aio_req req;	630	bdb_req req;
488		631
489	if (max_poll_time)	632	if (max_poll_time)
490	gettimeofday (&tv_start, 0);	633	gettimeofday (&tv_start, 0);
491		634
492	for (;;)	635	for (;;)
493	{	636	{
494	for (;;)	637	for (;;)
495	{	638	{
496	maybe_start_thread ();	639	maybe_start_thread ();
497		640
498	LOCK (reslock);	641	X_LOCK (reslock);
499	req = reqq_shift (&res_queue);	642	req = reqq_shift (&res_queue);
500		643
501	if (req)	644	if (req)
502	{	645	{
503	--npending;	646	--npending;
504		647
505	if (!res_queue.size)	648	if (!res_queue.size)
506	{	649	{
507	/* read any signals sent by the worker threads */	650	/* read any signals sent by the worker threads */
508	char buf [4];	651	char buf [4];
509	while (read (respipe [0], buf, 4) == 4)	652	while (respipe_read (respipe [0], buf, 4) == 4)
510	;	653	;
511	}	654	}
512	}	655	}
513		656
514	UNLOCK (reslock);	657	X_UNLOCK (reslock);
515		658
516	if (!req)	659	if (!req)
517	break;	660	break;
518		661
519	--nreqs;	662	--nreqs;
…		…
549	}	692	}
550		693
551	return count;	694	return count;
552	}	695	}
553		696
554	static void create_pipe ()
555	{
556	if (pipe (respipe))
557	croak ("unable to initialize result pipe");
558
559	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
560	croak ("cannot set result pipe to nonblocking mode");
561
562	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
563	croak ("cannot set result pipe to nonblocking mode");
564	}
565
566	/*****************************************************************************/	697	/*****************************************************************************/
567		698
568	static void *aio_proc (void *thr_arg)	699	X_THREAD_PROC (bdb_proc)
569	{	700	{
570	aio_req req;	701	bdb_req req;
571	struct timespec ts;	702	struct timespec ts;
572	worker *self = (worker *)thr_arg;	703	worker *self = (worker *)thr_arg;
573		704
574	/* try to distribute timeouts somewhat evenly */	705	/* try to distribute timeouts somewhat evenly */
575	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	706	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
576	* (1000000000UL / 1024UL);
577		707
578	for (;;)	708	for (;;)
579	{	709	{
580	ts.tv_sec = time (0) + IDLE_TIMEOUT;	710	ts.tv_sec = time (0) + IDLE_TIMEOUT;
581		711
582	LOCK (reqlock);	712	X_LOCK (reqlock);
583		713
584	for (;;)	714	for (;;)
585	{	715	{
586	self->req = req = reqq_shift (&req_queue);	716	self->req = req = reqq_shift (&req_queue);
587		717
588	if (req)	718	if (req)
589	break;	719	break;
590		720
591	++idle;	721	++idle;
592		722
593	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	723	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
594	== ETIMEDOUT)	724	== ETIMEDOUT)
595	{	725	{
596	if (idle > max_idle)	726	if (idle > max_idle)
597	{	727	{
598	--idle;	728	--idle;
599	UNLOCK (reqlock);	729	X_UNLOCK (reqlock);
600	LOCK (wrklock);	730	X_LOCK (wrklock);
601	--started;	731	--started;
602	UNLOCK (wrklock);	732	X_UNLOCK (wrklock);
603	goto quit;	733	goto quit;
604	}	734	}
605		735
606	/* we are allowed to idle, so do so without any timeout */	736	/* we are allowed to idle, so do so without any timeout */
607	pthread_cond_wait (&reqwait, &reqlock);	737	X_COND_WAIT (reqwait, reqlock);
608	ts.tv_sec = time (0) + IDLE_TIMEOUT;	738	ts.tv_sec = time (0) + IDLE_TIMEOUT;
609	}	739	}
610		740
611	--idle;	741	--idle;
612	}	742	}
613		743
614	--nready;	744	--nready;
615		745
616	UNLOCK (reqlock);	746	X_UNLOCK (reqlock);
617		747
618	switch (req->type)	748	switch (req->type)
619	{	749	{
620	case REQ_QUIT:	750	case REQ_QUIT:
		751	req->result = ENOSYS;
621	goto quit;	752	goto quit;
622		753
623	case REQ_ENV_OPEN:	754	case REQ_ENV_OPEN:
624	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);	755	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
625	break;	756	break;
626		757
627	case REQ_ENV_CLOSE:	758	case REQ_ENV_CLOSE:
628	req->result = req->env->close (req->env, req->uint1);	759	req->result = req->env->close (req->env, req->uint1);
629	break;	760	break;
630		761
		762	case REQ_ENV_TXN_CHECKPOINT:
		763	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		764	break;
		765
		766	case REQ_ENV_LOCK_DETECT:
		767	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		768	break;
		769
		770	case REQ_ENV_MEMP_SYNC:
		771	req->result = req->env->memp_sync (req->env, 0);
		772	break;
		773
		774	case REQ_ENV_MEMP_TRICKLE:
		775	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		776	break;
		777
		778	case REQ_ENV_DBREMOVE:
		779	req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
		780	break;
		781
		782	case REQ_ENV_DBRENAME:
		783	req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
		784	break;
		785
631	case REQ_DB_OPEN:	786	case REQ_DB_OPEN:
632	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);	787	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
633	break;	788	break;
634		789
635	case REQ_DB_CLOSE:	790	case REQ_DB_CLOSE:
…		…
642		797
643	case REQ_DB_SYNC:	798	case REQ_DB_SYNC:
644	req->result = req->db->sync (req->db, req->uint1);	799	req->result = req->db->sync (req->db, req->uint1);
645	break;	800	break;
646		801
		802	case REQ_DB_UPGRADE:
		803	req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
		804	break;
		805
647	case REQ_DB_PUT:	806	case REQ_DB_PUT:
648	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);	807	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
649	break;	808	break;
650		809
651	case REQ_DB_GET:	810	case REQ_DB_GET:
…		…
654		813
655	case REQ_DB_PGET:	814	case REQ_DB_PGET:
656	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);	815	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
657	break;	816	break;
658		817
		818	case REQ_DB_DEL:
		819	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		820	break;
		821
		822	case REQ_DB_KEY_RANGE:
		823	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		824	break;
		825
659	case REQ_TXN_COMMIT:	826	case REQ_TXN_COMMIT:
660	req->result = req->txn->commit (req->txn, req->uint1);	827	req->result = req->txn->commit (req->txn, req->uint1);
661	break;	828	break;
662		829
663	case REQ_TXN_ABORT:	830	case REQ_TXN_ABORT:
664	req->result = req->txn->abort (req->txn);	831	req->result = req->txn->abort (req->txn);
665	break;	832	break;
666		833
		834	case REQ_TXN_FINISH:
		835	if (req->txn->flags & TXN_DEADLOCK)
		836	{
		837	req->result = req->txn->abort (req->txn);
		838	if (!req->result)
		839	req->result = DB_LOCK_DEADLOCK;
		840	}
		841	else
		842	req->result = req->txn->commit (req->txn, req->uint1);
		843	break;
		844
		845	case REQ_C_CLOSE:
		846	req->result = req->dbc->c_close (req->dbc);
		847	break;
		848
		849	case REQ_C_COUNT:
		850	{
		851	db_recno_t recno;
		852	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		853	req->uv1 = recno;
		854	}
		855	break;
		856
		857	case REQ_C_PUT:
		858	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		859	break;
		860
		861	case REQ_C_GET:
		862	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		863	break;
		864
		865	case REQ_C_PGET:
		866	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		867	break;
		868
		869	case REQ_C_DEL:
		870	req->result = req->dbc->c_del (req->dbc, req->uint1);
		871	break;
		872
		873	case REQ_SEQ_OPEN:
		874	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		875	break;
		876
		877	case REQ_SEQ_CLOSE:
		878	req->result = req->seq->close (req->seq, req->uint1);
		879	break;
		880
		881	case REQ_SEQ_GET:
		882	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		883	break;
		884
		885	case REQ_SEQ_REMOVE:
		886	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		887	break;
		888
667	default:	889	default:
668	req->result = ENOSYS;	890	req->result = ENOSYS;
669	break;	891	break;
670	}	892	}
671		893
		894	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		895	req->txn->flags |= TXN_DEADLOCK;
		896
672	LOCK (reslock);	897	X_LOCK (reslock);
673		898
674	++npending;	899	++npending;
675		900
676	if (!reqq_push (&res_queue, req))	901	if (!reqq_push (&res_queue, req))
677	/* write a dummy byte to the pipe so fh becomes ready */	902	/* write a dummy byte to the pipe so fh becomes ready */
678	write (respipe [1], &respipe, 1);	903	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
679		904
680	self->req = 0;	905	self->req = 0;
681	worker_clear (self);	906	worker_clear (self);
682		907
683	UNLOCK (reslock);	908	X_UNLOCK (reslock);
684	}	909	}
685		910
686	quit:	911	quit:
687	LOCK (wrklock);	912	X_LOCK (wrklock);
688	worker_free (self);	913	worker_free (self);
689	UNLOCK (wrklock);	914	X_UNLOCK (wrklock);
690		915
691	return 0;	916	return 0;
692	}	917	}
693		918
694	/*****************************************************************************/	919	/*****************************************************************************/
695		920
696	static void atfork_prepare (void)	921	static void atfork_prepare (void)
697	{	922	{
698	LOCK (wrklock);	923	X_LOCK (wrklock);
699	LOCK (reqlock);	924	X_LOCK (reqlock);
700	LOCK (reslock);	925	X_LOCK (reslock);
701	}	926	}
702		927
703	static void atfork_parent (void)	928	static void atfork_parent (void)
704	{	929	{
705	UNLOCK (reslock);	930	X_UNLOCK (reslock);
706	UNLOCK (reqlock);	931	X_UNLOCK (reqlock);
707	UNLOCK (wrklock);	932	X_UNLOCK (wrklock);
708	}	933	}
709		934
710	static void atfork_child (void)	935	static void atfork_child (void)
711	{	936	{
712	aio_req prv;	937	bdb_req prv;
713		938
714	while (prv = reqq_shift (&req_queue))	939	while (prv = reqq_shift (&req_queue))
715	req_free (prv);	940	req_free (prv);
716		941
717	while (prv = reqq_shift (&res_queue))	942	while (prv = reqq_shift (&res_queue))
…		…
732	idle = 0;	957	idle = 0;
733	nreqs = 0;	958	nreqs = 0;
734	nready = 0;	959	nready = 0;
735	npending = 0;	960	npending = 0;
736		961
737	close (respipe [0]);
738	close (respipe [1]);
739	create_pipe ();	962	create_respipe ();
740		963
741	atfork_parent ();	964	atfork_parent ();
742	}	965	}
743		966
744	#define dREQ(reqtype) \	967	#define dREQ(reqtype) \
745	aio_req req; \	968	bdb_req req; \
746	int req_pri = next_pri; \	969	int req_pri = next_pri; \
747	next_pri = DEFAULT_PRI + PRI_BIAS; \	970	next_pri = DEFAULT_PRI + PRI_BIAS; \
748	\	971	\
749	if (SvOK (callback) && !SvROK (callback)) \	972	if (callback && SvOK (callback)) \
750	croak ("callback must be undef or of reference type"); \	973	croak ("callback has illegal type or extra arguments"); \
751	\	974	\
752	Newz (0, req, 1, aio_cb); \	975	Newz (0, req, 1, bdb_cb); \
753	if (!req) \	976	if (!req) \
754	croak ("out of memory during aio_req allocation"); \	977	croak ("out of memory during bdb_req allocation"); \
755	\	978	\
756	req->callback = newSVsv (callback); \	979	req->callback = cb ? SvREFCNT_inc (cb) : 0; \
757	req->type = (reqtype); \	980	req->type = (reqtype); \
758	req->pri = req_pri	981	req->pri = req_pri
759		982
760	#define REQ_SEND \	983	#define REQ_SEND \
761	req_send (req)	984	req_send (req)
762		985
763	#define SvPTR(var, arg, type, class, nullok) \	986	#define SvPTR(var, arg, type, class, nullok) \
764	if (!SvOK (arg)) \	987	if (!SvOK (arg)) \
765	{ \	988	{ \
766	if (!nullok) \	989	if (nullok != 1) \
767	Perl_croak (# var " must be a " # class " object, not undef"); \	990	croak (# var " must be a " # class " object, not undef"); \
768	\	991	\
769	(var) = 0; \	992	(var) = 0; \
770	} \	993	} \
771	else if (sv_derived_from ((arg), # class)) \	994	else if (sv_derived_from ((arg), # class)) \
772	{ \	995	{ \
773	IV tmp = SvIV ((SV*) SvRV (arg)); \	996	IV tmp = SvIV ((SV*) SvRV (arg)); \
774	(var) = INT2PTR (type, tmp); \	997	(var) = INT2PTR (type, tmp); \
775	if (!var) \	998	if (!var && nullok != 2) \
776	Perl_croak (# var " is not a valid " # class " object anymore"); \	999	croak (# var " is not a valid " # class " object anymore"); \
777	} \	1000	} \
778	else \	1001	else \
779	Perl_croak (# var " is not of type " # class); \	1002	croak (# var " is not of type " # class); \
780	\	1003	\
781		1004
782	static void	1005	static void
783	ptr_nuke (SV *sv)	1006	ptr_nuke (SV *sv)
784	{	1007	{
785	assert (SvROK (sv));	1008	assert (SvROK (sv));
786	sv_setiv (SvRV (sv), 0);	1009	sv_setiv (SvRV (sv), 0);
787	}	1010	}
		1011
		1012	static int
		1013	errno_get (pTHX_ SV *sv, MAGIC *mg)
		1014	{
		1015	if (*mg->mg_ptr == '!') // should always be the case
		1016	if (-30999 <= errno && errno <= -30800)
		1017	{
		1018	sv_setnv (sv, (NV)errno);
		1019	sv_setpv (sv, db_strerror (errno));
		1020	SvNOK_on (sv); /* what a wonderful hack! */
		1021	// ^^^ copied from perl sources
		1022	return 0;
		1023	}
		1024
		1025	return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
		1026	}
		1027
		1028	static MGVTBL vtbl_errno;
		1029
		1030	// this wonderful hack :( patches perl's $! variable to support our errno values
		1031	static void
		1032	patch_errno (void)
		1033	{
		1034	SV *sv;
		1035	MAGIC *mg;
		1036
		1037	if (!(sv = get_sv ("!", 1)))
		1038	return;
		1039
		1040	if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
		1041	return;
		1042
		1043	if (mg->mg_virtual != &PL_vtbl_sv)
		1044	return;
		1045
		1046	vtbl_errno = PL_vtbl_sv;
		1047	vtbl_errno.svt_get = errno_get;
		1048	mg->mg_virtual = &vtbl_errno;
		1049	}
		1050
		1051	static SV *
		1052	pop_callback (I32 *ritems, SV *sv)
		1053	{
		1054	if (SvROK (sv))
		1055	{
		1056	HV *st;
		1057	GV *gvp;
		1058	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		1059
		1060	if (cv)
		1061	{
		1062	--*ritems;
		1063	return (SV *)cv;
		1064	}
		1065	}
		1066
		1067	return 0;
		1068	}
		1069
		1070	#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
788		1071
789	MODULE = BDB PACKAGE = BDB	1072	MODULE = BDB PACKAGE = BDB
790		1073
791	PROTOTYPES: ENABLE	1074	PROTOTYPES: ENABLE
792		1075
…		…
808	const_iv (INIT_TXN)	1091	const_iv (INIT_TXN)
809	const_iv (RECOVER)	1092	const_iv (RECOVER)
810	const_iv (INIT_TXN)	1093	const_iv (INIT_TXN)
811	const_iv (RECOVER_FATAL)	1094	const_iv (RECOVER_FATAL)
812	const_iv (CREATE)	1095	const_iv (CREATE)
		1096	const_iv (RDONLY)
813	const_iv (USE_ENVIRON)	1097	const_iv (USE_ENVIRON)
814	const_iv (USE_ENVIRON_ROOT)	1098	const_iv (USE_ENVIRON_ROOT)
815	const_iv (LOCKDOWN)	1099	const_iv (LOCKDOWN)
816	const_iv (PRIVATE)	1100	const_iv (PRIVATE)
817	const_iv (REGISTER)	1101	const_iv (REGISTER)
818	const_iv (SYSTEM_MEM)	1102	const_iv (SYSTEM_MEM)
819	const_iv (AUTO_COMMIT)	1103	const_iv (AUTO_COMMIT)
820	const_iv (CDB_ALLDB)	1104	const_iv (CDB_ALLDB)
821	const_iv (DIRECT_DB)	1105	const_iv (DIRECT_DB)
822	const_iv (DIRECT_LOG)
823	const_iv (DSYNC_DB)	1106	const_iv (DSYNC_DB)
824	const_iv (DSYNC_LOG)
825	const_iv (LOG_AUTOREMOVE)
826	const_iv (LOG_INMEMORY)
827	const_iv (NOLOCKING)	1107	const_iv (NOLOCKING)
828	const_iv (MULTIVERSION)
829	const_iv (NOMMAP)	1108	const_iv (NOMMAP)
830	const_iv (NOPANIC)	1109	const_iv (NOPANIC)
831	const_iv (OVERWRITE)	1110	const_iv (OVERWRITE)
832	const_iv (PANIC_ENVIRONMENT)	1111	const_iv (PANIC_ENVIRONMENT)
833	const_iv (REGION_INIT)	1112	const_iv (REGION_INIT)
834	const_iv (TIME_NOTGRANTED)	1113	const_iv (TIME_NOTGRANTED)
835	const_iv (TXN_NOSYNC)	1114	const_iv (TXN_NOSYNC)
836	const_iv (TXN_SNAPSHOT)	1115	const_iv (TXN_NOT_DURABLE)
837	const_iv (TXN_WRITE_NOSYNC)	1116	const_iv (TXN_WRITE_NOSYNC)
838	const_iv (WRITECURSOR)	1117	const_iv (WRITECURSOR)
839	const_iv (YIELDCPU)	1118	const_iv (YIELDCPU)
840	const_iv (ENCRYPT_AES)	1119	const_iv (ENCRYPT_AES)
841	const_iv (XA_CREATE)	1120	const_iv (XA_CREATE)
…		…
849	const_iv (READ_UNCOMMITTED)	1128	const_iv (READ_UNCOMMITTED)
850	const_iv (TRUNCATE)	1129	const_iv (TRUNCATE)
851	const_iv (NOSYNC)	1130	const_iv (NOSYNC)
852	const_iv (CHKSUM)	1131	const_iv (CHKSUM)
853	const_iv (ENCRYPT)	1132	const_iv (ENCRYPT)
854	const_iv (TXN_NOT_DURABLE)
855	const_iv (DUP)	1133	const_iv (DUP)
856	const_iv (DUPSORT)	1134	const_iv (DUPSORT)
857	const_iv (RECNUM)	1135	const_iv (RECNUM)
858	const_iv (RENUMBER)	1136	const_iv (RENUMBER)
859	const_iv (REVSPLITOFF)	1137	const_iv (REVSPLITOFF)
860	const_iv (INORDER)	1138	const_iv (INORDER)
861	const_iv (CONSUME)	1139	const_iv (CONSUME)
862	const_iv (CONSUME_WAIT)	1140	const_iv (CONSUME_WAIT)
863	const_iv (GET_BOTH)	1141	const_iv (GET_BOTH)
		1142	const_iv (GET_BOTH_RANGE)
864	//const_iv (SET_RECNO)	1143	//const_iv (SET_RECNO)
865	//const_iv (MULTIPLE)	1144	//const_iv (MULTIPLE)
866	const_iv (SNAPSHOT)	1145	const_iv (SNAPSHOT)
867	const_iv (JOIN_ITEM)	1146	const_iv (JOIN_ITEM)
		1147	const_iv (JOIN_NOSORT)
868	const_iv (RMW)	1148	const_iv (RMW)
869		1149
870	const_iv (NOTFOUND)	1150	const_iv (NOTFOUND)
871	const_iv (KEYEMPTY)	1151	const_iv (KEYEMPTY)
872	const_iv (LOCK_DEADLOCK)	1152	const_iv (LOCK_DEADLOCK)
873	const_iv (LOCK_NOTGRANTED)	1153	const_iv (LOCK_NOTGRANTED)
874	const_iv (RUNRECOVERY)	1154	const_iv (RUNRECOVERY)
875	const_iv (OLD_VERSION)	1155	const_iv (OLD_VERSION)
876	const_iv (REP_HANDLE_DEAD)	1156	const_iv (REP_HANDLE_DEAD)
877	const_iv (REP_LOCKOUT)	1157	const_iv (REP_LOCKOUT)
		1158	const_iv (SECONDARY_BAD)
878		1159
879	const_iv (FREE_SPACE)	1160	const_iv (FREE_SPACE)
880	const_iv (FREELIST_ONLY)	1161	const_iv (FREELIST_ONLY)
881		1162
882	const_iv (APPEND)	1163	const_iv (APPEND)
883	const_iv (NODUPDATA)	1164	const_iv (NODUPDATA)
884	const_iv (NOOVERWRITE)	1165	const_iv (NOOVERWRITE)
885		1166
886	const_iv (TXN_NOWAIT)	1167	const_iv (TXN_NOWAIT)
887	const_iv (TXN_SNAPSHOT)
888	const_iv (TXN_SYNC)	1168	const_iv (TXN_SYNC)
889		1169
890	const_iv (SET_LOCK_TIMEOUT)	1170	const_iv (SET_LOCK_TIMEOUT)
891	const_iv (SET_TXN_TIMEOUT)	1171	const_iv (SET_TXN_TIMEOUT)
		1172
		1173	const_iv (FIRST)
		1174	const_iv (NEXT)
		1175	const_iv (NEXT_DUP)
		1176	const_iv (NEXT_NODUP)
		1177	const_iv (PREV)
		1178	const_iv (PREV_NODUP)
		1179	const_iv (SET)
		1180	const_iv (SET_RANGE)
		1181	const_iv (LAST)
		1182	const_iv (BEFORE)
		1183	const_iv (AFTER)
		1184	const_iv (CURRENT)
		1185	const_iv (KEYFIRST)
		1186	const_iv (KEYLAST)
		1187	const_iv (NODUPDATA)
		1188
		1189	const_iv (FORCE)
		1190
		1191	const_iv (LOCK_DEFAULT)
		1192	const_iv (LOCK_EXPIRE)
		1193	const_iv (LOCK_MAXLOCKS)
		1194	const_iv (LOCK_MAXWRITE)
		1195	const_iv (LOCK_MINLOCKS)
		1196	const_iv (LOCK_MINWRITE)
		1197	const_iv (LOCK_OLDEST)
		1198	const_iv (LOCK_RANDOM)
		1199	const_iv (LOCK_YOUNGEST)
		1200
		1201	const_iv (SEQ_DEC)
		1202	const_iv (SEQ_INC)
		1203	const_iv (SEQ_WRAP)
		1204
		1205	const_iv (BUFFER_SMALL)
		1206	const_iv (DONOTINDEX)
		1207	const_iv (KEYEMPTY )
		1208	const_iv (KEYEXIST )
		1209	const_iv (LOCK_DEADLOCK)
		1210	const_iv (LOCK_NOTGRANTED)
		1211	const_iv (LOG_BUFFER_FULL)
		1212	const_iv (NOSERVER)
		1213	const_iv (NOSERVER_HOME)
		1214	const_iv (NOSERVER_ID)
		1215	const_iv (NOTFOUND)
		1216	const_iv (PAGE_NOTFOUND)
		1217	const_iv (REP_DUPMASTER)
		1218	const_iv (REP_HANDLE_DEAD)
		1219	const_iv (REP_HOLDELECTION)
		1220	const_iv (REP_IGNORE)
		1221	const_iv (REP_ISPERM)
		1222	const_iv (REP_JOIN_FAILURE)
		1223	const_iv (REP_LOCKOUT)
		1224	const_iv (REP_NEWMASTER)
		1225	const_iv (REP_NEWSITE)
		1226	const_iv (REP_NOTPERM)
		1227	const_iv (REP_UNAVAIL)
		1228	const_iv (RUNRECOVERY)
		1229	const_iv (SECONDARY_BAD)
		1230	const_iv (VERIFY_BAD)
		1231	const_iv (VERSION_MISMATCH)
		1232
		1233	const_iv (VERB_DEADLOCK)
		1234	const_iv (VERB_RECOVERY)
		1235	const_iv (VERB_REGISTER)
		1236	const_iv (VERB_REPLICATION)
		1237	const_iv (VERB_WAITSFOR)
		1238
		1239	const_iv (VERSION_MAJOR)
		1240	const_iv (VERSION_MINOR)
		1241	const_iv (VERSION_PATCH)
		1242	#if DB_VERSION_MINOR >= 5
		1243	const_iv (MULTIVERSION)
		1244	const_iv (TXN_SNAPSHOT)
		1245	#endif
		1246	#if DB_VERSION_MINOR >= 6
		1247	const_iv (PREV_DUP)
		1248	const_iv (PRIORITY_UNCHANGED)
		1249	const_iv (PRIORITY_VERY_LOW)
		1250	const_iv (PRIORITY_LOW)
		1251	const_iv (PRIORITY_DEFAULT)
		1252	const_iv (PRIORITY_HIGH)
		1253	const_iv (PRIORITY_VERY_HIGH)
		1254	#endif
		1255	#if DB_VERSION_MINOR >= 7
		1256	const_iv (LOG_DIRECT)
		1257	const_iv (LOG_DSYNC)
		1258	const_iv (LOG_AUTO_REMOVE)
		1259	const_iv (LOG_IN_MEMORY)
		1260	const_iv (LOG_ZERO)
		1261	#else
		1262	const_iv (DIRECT_LOG)
		1263	const_iv (DSYNC_LOG)
		1264	const_iv (LOG_AUTOREMOVE)
		1265	const_iv (LOG_INMEMORY)
		1266	#endif
892	};	1267	};
893		1268
894	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1269	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
895	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1270	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
896		1271
897	create_pipe ();	1272	{
		1273	/* we currently only allow version, minor-version and patchlevel to go up to 255 */
		1274	char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
		1275
		1276	newCONSTSUB (stash, "VERSION_v", newSVpvn (vstring, 3));
		1277	}
		1278
		1279	newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1280
		1281	create_respipe ();
		1282
898	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1283	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1284	patch_errno ();
899	}	1285	}
900		1286
901	void	1287	void
902	max_poll_reqs (int nreqs)	1288	max_poll_reqs (int nreqs)
903	PROTOTYPE: $	1289	PROTOTYPE: $
…		…
1022		1408
1023	int	1409	int
1024	nthreads ()	1410	nthreads ()
1025	PROTOTYPE:	1411	PROTOTYPE:
1026	CODE:	1412	CODE:
1027	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1413	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1028	RETVAL = started;	1414	RETVAL = started;
1029	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1415	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1030	OUTPUT:	1416	OUTPUT:
1031	RETVAL	1417	RETVAL
1032		1418
1033	void	1419	void
1034	set_sync_prepare (SV *cb)	1420	set_sync_prepare (SV *cb)
1035	PROTOTYPE: &	1421	PROTOTYPE: &
1036	CODE:	1422	CODE:
1037	SvREFCNT_dec (prepare_cb);	1423	SvREFCNT_dec (prepare_cb);
1038	prepare_cb = newSVsv (cb);	1424	prepare_cb = newSVsv (cb);
		1425
		1426	char *
		1427	strerror (int errorno = errno)
		1428	PROTOTYPE: ;$
		1429	CODE:
		1430	RETVAL = db_strerror (errorno);
		1431	OUTPUT:
		1432	RETVAL
		1433
		1434	void _on_next_submit (SV *cb)
		1435	CODE:
		1436	SvREFCNT_dec (on_next_submit);
		1437	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1039		1438
1040	DB_ENV *	1439	DB_ENV *
1041	db_env_create (U32 env_flags = 0)	1440	db_env_create (U32 env_flags = 0)
1042	CODE:	1441	CODE:
1043	{	1442	{
1044	errno = db_env_create (&RETVAL, env_flags);	1443	errno = db_env_create (&RETVAL, env_flags);
1045	if (errno)	1444	if (errno)
1046	croak ("db_env_create: %s", db_strerror (errno));	1445	croak ("db_env_create: %s", db_strerror (errno));
		1446
		1447	if (0)
		1448	{
		1449	RETVAL->set_errcall (RETVAL, debug_errcall);
		1450	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1451	}
1047	}	1452	}
1048	OUTPUT:	1453	OUTPUT:
1049	RETVAL	1454	RETVAL
1050		1455
1051	void	1456	void
1052	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)	1457	db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
		1458	PREINIT:
		1459	CALLBACK
1053	CODE:	1460	CODE:
1054	{	1461	{
1055	dREQ (REQ_ENV_OPEN);	1462	dREQ (REQ_ENV_OPEN);
1056	req->env = env;	1463	req->env = env;
1057	req->uint1 = open_flags | DB_THREAD;	1464	req->uint1 = open_flags | DB_THREAD;
…		…
1059	req->buf1 = strdup_ornull (db_home);	1466	req->buf1 = strdup_ornull (db_home);
1060	REQ_SEND;	1467	REQ_SEND;
1061	}	1468	}
1062		1469
1063	void	1470	void
1064	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)	1471	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
		1472	PREINIT:
		1473	CALLBACK
1065	CODE:	1474	CODE:
1066	{	1475	{
1067	dREQ (REQ_ENV_CLOSE);	1476	dREQ (REQ_ENV_CLOSE);
1068	req->env = env;	1477	req->env = env;
1069	req->uint1 = flags;	1478	req->uint1 = flags;
1070	REQ_SEND;	1479	REQ_SEND;
1071	ptr_nuke (ST (0));	1480	ptr_nuke (ST (0));
1072	}	1481	}
1073		1482
		1483	void
		1484	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
		1485	PREINIT:
		1486	CALLBACK
		1487	CODE:
		1488	{
		1489	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1490	req->env = env;
		1491	req->uint1 = kbyte;
		1492	req->int1 = min;
		1493	req->uint2 = flags;
		1494	REQ_SEND;
		1495	}
		1496
		1497	void
		1498	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
		1499	PREINIT:
		1500	CALLBACK
		1501	CODE:
		1502	{
		1503	dREQ (REQ_ENV_LOCK_DETECT);
		1504	req->env = env;
		1505	req->uint1 = flags;
		1506	req->uint2 = atype;
		1507	/* req->int2 = 0; dummy */
		1508	REQ_SEND;
		1509	}
		1510
		1511	void
		1512	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
		1513	PREINIT:
		1514	CALLBACK
		1515	CODE:
		1516	{
		1517	dREQ (REQ_ENV_MEMP_SYNC);
		1518	req->env = env;
		1519	REQ_SEND;
		1520	}
		1521
		1522	void
		1523	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
		1524	PREINIT:
		1525	CALLBACK
		1526	CODE:
		1527	{
		1528	dREQ (REQ_ENV_MEMP_TRICKLE);
		1529	req->env = env;
		1530	req->int1 = percent;
		1531	REQ_SEND;
		1532	}
		1533
		1534	void
		1535	db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
		1536	PREINIT:
		1537	CALLBACK
		1538	CODE:
		1539	{
		1540	dREQ (REQ_ENV_DBREMOVE);
		1541	req->env = env;
		1542	req->buf1 = strdup_ornull (file);
		1543	req->buf2 = strdup_ornull (database);
		1544	req->uint1 = flags;
		1545	REQ_SEND;
		1546	}
		1547
		1548	void
		1549	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)
		1550	PREINIT:
		1551	CALLBACK
		1552	CODE:
		1553	{
		1554	dREQ (REQ_ENV_DBRENAME);
		1555	req->env = env;
		1556	req->buf1 = strdup_ornull (file);
		1557	req->buf2 = strdup_ornull (database);
		1558	req->buf3 = strdup_ornull (newname);
		1559	req->uint1 = flags;
		1560	REQ_SEND;
		1561	}
		1562
1074	DB *	1563	DB *
1075	db_create (DB_ENV *env = 0, U32 flags = 0)	1564	db_create (DB_ENV *env = 0, U32 flags = 0)
1076	CODE:	1565	CODE:
1077	{	1566	{
1078	errno = db_create (&RETVAL, env, flags);	1567	errno = db_create (&RETVAL, env, flags);
1079	if (errno)	1568	if (errno)
1080	croak ("db_env_create: %s", db_strerror (errno));	1569	croak ("db_create: %s", db_strerror (errno));
1081		1570
1082	if (RETVAL)	1571	if (RETVAL)
1083	RETVAL->app_private = (void *)newSVsv (ST (0));	1572	RETVAL->app_private = (void *)newSVsv (ST (0));
1084	}	1573	}
1085	OUTPUT:	1574	OUTPUT:
1086	RETVAL	1575	RETVAL
1087		1576
1088	void	1577	void
1089	db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)	1578	db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
		1579	PREINIT:
		1580	CALLBACK
1090	CODE:	1581	CODE:
1091	{	1582	{
1092	dREQ (REQ_DB_OPEN);	1583	dREQ (REQ_DB_OPEN);
1093	req->db = db;	1584	req->db = db;
1094	req->txn = txnid;	1585	req->txn = txnid;
…		…
1099	req->int2 = mode;	1590	req->int2 = mode;
1100	REQ_SEND;	1591	REQ_SEND;
1101	}	1592	}
1102		1593
1103	void	1594	void
1104	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1595	db_close (DB *db, U32 flags = 0, SV *callback = 0)
		1596	PREINIT:
		1597	CALLBACK
1105	CODE:	1598	CODE:
1106	{	1599	{
1107	dREQ (REQ_DB_CLOSE);	1600	dREQ (REQ_DB_CLOSE);
1108	req->db = db;	1601	req->db = db;
1109	req->uint1 = flags;	1602	req->uint1 = flags;
…		…
1111	REQ_SEND;	1604	REQ_SEND;
1112	ptr_nuke (ST (0));	1605	ptr_nuke (ST (0));
1113	}	1606	}
1114		1607
1115	void	1608	void
1116	db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef)	1609	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)
		1610	PREINIT:
		1611	CALLBACK
1117	CODE:	1612	CODE:
1118	{	1613	{
1119	dREQ (REQ_DB_COMPACT);	1614	dREQ (REQ_DB_COMPACT);
1120	req->db = db;	1615	req->db = db;
1121	req->txn = txn;	1616	req->txn = txn;
…		…
1124	req->uint1 = flags;	1619	req->uint1 = flags;
1125	REQ_SEND;	1620	REQ_SEND;
1126	}	1621	}
1127		1622
1128	void	1623	void
1129	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)	1624	db_sync (DB *db, U32 flags = 0, SV *callback = 0)
		1625	PREINIT:
		1626	CALLBACK
1130	CODE:	1627	CODE:
1131	{	1628	{
1132	dREQ (REQ_DB_SYNC);	1629	dREQ (REQ_DB_SYNC);
1133	req->db = db;	1630	req->db = db;
1134	req->uint1 = flags;	1631	req->uint1 = flags;
1135	REQ_SEND;	1632	REQ_SEND;
1136	}	1633	}
1137		1634
1138	void	1635	void
		1636	db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
		1637	PREINIT:
		1638	CALLBACK
		1639	CODE:
		1640	{
		1641	dREQ (REQ_DB_SYNC);
		1642	req->db = db;
		1643	req->buf1 = strdup (file);
		1644	req->uint1 = flags;
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = 0)
		1650	PREINIT:
		1651	CALLBACK
		1652	CODE:
		1653	{
		1654	dREQ (REQ_DB_KEY_RANGE);
		1655	req->db = db;
		1656	req->txn = txn;
		1657	sv_to_dbt (&req->dbt1, key);
		1658	req->uint1 = flags;
		1659	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1660	REQ_SEND;
		1661	}
		1662
		1663	void
1139	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1664	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1665	PREINIT:
		1666	CALLBACK
1140	CODE:	1667	CODE:
1141	{	1668	{
1142	dREQ (REQ_DB_PUT);	1669	dREQ (REQ_DB_PUT);
1143	req->db = db;	1670	req->db = db;
1144	req->txn = txn;	1671	req->txn = txn;
…		…
1147	req->uint1 = flags;	1674	req->uint1 = flags;
1148	REQ_SEND;	1675	REQ_SEND;
1149	}	1676	}
1150		1677
1151	void	1678	void
1152	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1679	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1680	PREINIT:
		1681	CALLBACK
1153	CODE:	1682	CODE:
		1683	if (SvREADONLY (data))
		1684	croak ("can't modify read-only data scalar in db_get");
1154	{	1685	{
1155	dREQ (REQ_DB_GET);	1686	dREQ (REQ_DB_GET);
1156	req->db = db;	1687	req->db = db;
1157	req->txn = txn;	1688	req->txn = txn;
		1689	req->uint1 = flags;
1158	sv_to_dbt (&req->dbt1, key);	1690	sv_to_dbt (&req->dbt1, key);
1159	req->dbt3.flags = DB_DBT_MALLOC;	1691	req->dbt3.flags = DB_DBT_MALLOC;
1160	req->uint1 = flags;
1161	req->sv1 = SvREFCNT_inc (data);	1692	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
1162	SvREADONLY_on (data);
1163	REQ_SEND;	1693	REQ_SEND;
1164	}	1694	}
1165		1695
1166	void	1696	void
1167	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)	1697	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1698	PREINIT:
		1699	CALLBACK
1168	CODE:	1700	CODE:
		1701	if (SvREADONLY (data))
		1702	croak ("can't modify read-only data scalar in db_pget");
1169	{	1703	{
1170	dREQ (REQ_DB_PGET);	1704	dREQ (REQ_DB_PGET);
1171	req->db = db;	1705	req->db = db;
1172	req->txn = txn;	1706	req->txn = txn;
		1707	req->uint1 = flags;
1173	sv_to_dbt (&req->dbt1, key);	1708	sv_to_dbt (&req->dbt1, key);
1174	sv_to_dbt (&req->dbt2, pkey);	1709	sv_to_dbt (&req->dbt2, pkey);
1175	req->dbt3.flags = DB_DBT_MALLOC;	1710	req->dbt3.flags = DB_DBT_MALLOC;
		1711	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1712	REQ_SEND;
		1713	}
		1714
		1715	void
		1716	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
		1717	PREINIT:
		1718	CALLBACK
		1719	CODE:
		1720	{
		1721	dREQ (REQ_DB_DEL);
		1722	req->db = db;
		1723	req->txn = txn;
1176	req->uint1 = flags;	1724	req->uint1 = flags;
1177	req->sv1 = SvREFCNT_inc (data);	1725	sv_to_dbt (&req->dbt1, key);
1178	SvREADONLY_on (data);
1179	REQ_SEND;	1726	REQ_SEND;
1180	}	1727	}
1181		1728
1182	void	1729	void
1183	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)	1730	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1731	PREINIT:
		1732	CALLBACK
1184	CODE:	1733	CODE:
1185	{	1734	{
1186	dREQ (REQ_TXN_COMMIT);	1735	dREQ (REQ_TXN_COMMIT);
1187	req->txn = txn;	1736	req->txn = txn;
1188	req->uint1 = flags;	1737	req->uint1 = flags;
1189	REQ_SEND;	1738	REQ_SEND;
1190	ptr_nuke (ST (0));	1739	ptr_nuke (ST (0));
1191	}	1740	}
1192		1741
1193	void	1742	void
1194	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)	1743	db_txn_abort (DB_TXN *txn, SV *callback = 0)
		1744	PREINIT:
		1745	CALLBACK
1195	CODE:	1746	CODE:
1196	{	1747	{
1197	dREQ (REQ_TXN_ABORT);	1748	dREQ (REQ_TXN_ABORT);
1198	req->txn = txn;	1749	req->txn = txn;
1199	REQ_SEND;	1750	REQ_SEND;
1200	ptr_nuke (ST (0));	1751	ptr_nuke (ST (0));
1201	}	1752	}
1202		1753
		1754	void
		1755	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
		1756	PREINIT:
		1757	CALLBACK
		1758	CODE:
		1759	{
		1760	dREQ (REQ_TXN_FINISH);
		1761	req->txn = txn;
		1762	req->uint1 = flags;
		1763	REQ_SEND;
		1764	ptr_nuke (ST (0));
		1765	}
		1766
		1767	void
		1768	db_c_close (DBC *dbc, SV *callback = 0)
		1769	PREINIT:
		1770	CALLBACK
		1771	CODE:
		1772	{
		1773	dREQ (REQ_C_CLOSE);
		1774	req->dbc = dbc;
		1775	REQ_SEND;
		1776	ptr_nuke (ST (0));
		1777	}
		1778
		1779	void
		1780	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
		1781	PREINIT:
		1782	CALLBACK
		1783	CODE:
		1784	{
		1785	dREQ (REQ_C_COUNT);
		1786	req->dbc = dbc;
		1787	req->sv1 = SvREFCNT_inc (count);
		1788	REQ_SEND;
		1789	}
		1790
		1791	void
		1792	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1793	PREINIT:
		1794	CALLBACK
		1795	CODE:
		1796	{
		1797	dREQ (REQ_C_PUT);
		1798	req->dbc = dbc;
		1799	sv_to_dbt (&req->dbt1, key);
		1800	sv_to_dbt (&req->dbt2, data);
		1801	req->uint1 = flags;
		1802	REQ_SEND;
		1803	}
		1804
		1805	void
		1806	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
		1807	PREINIT:
		1808	CALLBACK
		1809	CODE:
		1810	{
		1811	dREQ (REQ_C_GET);
		1812	req->dbc = dbc;
		1813	req->uint1 = flags;
		1814	if ((flags & DB_SET) == DB_SET
		1815	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1816	sv_to_dbt (&req->dbt1, key);
		1817	else
		1818	req->dbt1.flags = DB_DBT_MALLOC;
		1819
		1820	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1821
		1822	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1823	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1824	sv_to_dbt (&req->dbt3, data);
		1825	else
		1826	req->dbt3.flags = DB_DBT_MALLOC;
		1827
		1828	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1829	REQ_SEND;
		1830	}
		1831
		1832	void
		1833	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = 0)
		1834	PREINIT:
		1835	CALLBACK
		1836	CODE:
		1837	{
		1838	dREQ (REQ_C_PGET);
		1839	req->dbc = dbc;
		1840	req->uint1 = flags;
		1841	if ((flags & DB_SET) == DB_SET
		1842	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1843	sv_to_dbt (&req->dbt1, key);
		1844	else
		1845	req->dbt1.flags = DB_DBT_MALLOC;
		1846
		1847	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1848
		1849	req->dbt2.flags = DB_DBT_MALLOC;
		1850	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1851
		1852	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1853	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1854	sv_to_dbt (&req->dbt3, data);
		1855	else
		1856	req->dbt3.flags = DB_DBT_MALLOC;
		1857
		1858	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1859	REQ_SEND;
		1860	}
		1861
		1862	void
		1863	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
		1864	PREINIT:
		1865	CALLBACK
		1866	CODE:
		1867	{
		1868	dREQ (REQ_C_DEL);
		1869	req->dbc = dbc;
		1870	req->uint1 = flags;
		1871	REQ_SEND;
		1872	}
		1873
		1874
		1875	void
		1876	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
		1877	PREINIT:
		1878	CALLBACK
		1879	CODE:
		1880	{
		1881	dREQ (REQ_SEQ_OPEN);
		1882	req->seq = seq;
		1883	req->txn = txnid;
		1884	req->uint1 = flags | DB_THREAD;
		1885	sv_to_dbt (&req->dbt1, key);
		1886	REQ_SEND;
		1887	}
		1888
		1889	void
		1890	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
		1891	PREINIT:
		1892	CALLBACK
		1893	CODE:
		1894	{
		1895	dREQ (REQ_SEQ_CLOSE);
		1896	req->seq = seq;
		1897	req->uint1 = flags;
		1898	REQ_SEND;
		1899	ptr_nuke (ST (0));
		1900	}
		1901
		1902	void
		1903	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
		1904	PREINIT:
		1905	CALLBACK
		1906	CODE:
		1907	{
		1908	dREQ (REQ_SEQ_GET);
		1909	req->seq = seq;
		1910	req->txn = txnid;
		1911	req->int1 = delta;
		1912	req->uint1 = flags;
		1913	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1914	REQ_SEND;
		1915	}
		1916
		1917	void
		1918	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
		1919	PREINIT:
		1920	CALLBACK
		1921	CODE:
		1922	{
		1923	dREQ (REQ_SEQ_REMOVE);
		1924	req->seq = seq;
		1925	req->txn = txnid;
		1926	req->uint1 = flags;
		1927	REQ_SEND;
		1928	}
		1929
1203		1930
1204	MODULE = BDB PACKAGE = BDB::Env	1931	MODULE = BDB PACKAGE = BDB::Env
1205		1932
1206	void	1933	void
1207	DESTROY (DB_ENV_ornull *env)	1934	DESTROY (DB_ENV_ornuked *env)
1208	CODE:	1935	CODE:
1209	if (env)	1936	if (env)
1210	env->close (env, 0);	1937	env->close (env, 0);
1211		1938
		1939	int set_data_dir (DB_ENV *env, const char *dir)
		1940	CODE:
		1941	RETVAL = env->set_data_dir (env, dir);
		1942	OUTPUT:
		1943	RETVAL
		1944
		1945	int set_tmp_dir (DB_ENV *env, const char *dir)
		1946	CODE:
		1947	RETVAL = env->set_tmp_dir (env, dir);
		1948	OUTPUT:
		1949	RETVAL
		1950
		1951	int set_lg_dir (DB_ENV *env, const char *dir)
		1952	CODE:
		1953	RETVAL = env->set_lg_dir (env, dir);
		1954	OUTPUT:
		1955	RETVAL
		1956
		1957	int set_shm_key (DB_ENV *env, long shm_key)
		1958	CODE:
		1959	RETVAL = env->set_shm_key (env, shm_key);
		1960	OUTPUT:
		1961	RETVAL
		1962
1212	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)	1963	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
1213	CODE:	1964	CODE:
1214	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);	1965	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1215	OUTPUT:	1966	OUTPUT:
1216	RETVAL	1967	RETVAL
1217		1968
1218	int set_flags (DB_ENV *env, U32 flags, int onoff)	1969	int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1219	CODE:	1970	CODE:
1220	RETVAL = env->set_flags (env, flags, onoff);	1971	RETVAL = env->set_flags (env, flags, onoff);
1221	OUTPUT:	1972	OUTPUT:
1222	RETVAL	1973	RETVAL
1223		1974
		1975	#if DB_VERSION_MINOR >= 7
		1976
		1977	int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
		1978	CODE:
		1979	RETVAL = env->set_intermediate_dir_mode (env, mode);
		1980	OUTPUT:
		1981	RETVAL
		1982
		1983	int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
		1984	CODE:
		1985	RETVAL = env->log_set_config (env, flags, onoff);
		1986	OUTPUT:
		1987	RETVAL
		1988
		1989	#endif
		1990
		1991
		1992	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1993	CODE:
		1994	env->set_errfile (env, errfile);
		1995
		1996	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1997	CODE:
		1998	env->set_msgfile (env, msgfile);
		1999
		2000	int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
		2001	CODE:
		2002	RETVAL = env->set_verbose (env, which, onoff);
		2003	OUTPUT:
		2004	RETVAL
		2005
1224	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)	2006	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
1225	CODE:	2007	CODE:
1226	RETVAL = env->set_encrypt (env, password, flags);	2008	RETVAL = env->set_encrypt (env, password, flags);
1227	OUTPUT:	2009	OUTPUT:
1228	RETVAL	2010	RETVAL
1229		2011
1230	int set_timeout (DB_ENV *env, NV timeout, U32 flags)	2012	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1231	CODE:	2013	CODE:
1232	RETVAL = env->set_timeout (env, timeout * 1000000, flags);	2014	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1233	OUTPUT:	2015	OUTPUT:
		2016	RETVAL
		2017
		2018	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		2019	CODE:
		2020	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		2021	OUTPUT:
		2022	RETVAL
		2023
		2024	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		2025	CODE:
		2026	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		2027	OUTPUT:
		2028	RETVAL
		2029
		2030	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		2031	CODE:
		2032	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		2033	OUTPUT:
		2034	RETVAL
		2035
		2036	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		2037	CODE:
		2038	RETVAL = env->set_lk_detect (env, detect);
		2039	OUTPUT:
		2040	RETVAL
		2041
		2042	int set_lk_max_lockers (DB_ENV *env, U32 max)
		2043	CODE:
		2044	RETVAL = env->set_lk_max_lockers (env, max);
		2045	OUTPUT:
		2046	RETVAL
		2047
		2048	int set_lk_max_locks (DB_ENV *env, U32 max)
		2049	CODE:
		2050	RETVAL = env->set_lk_max_locks (env, max);
		2051	OUTPUT:
		2052	RETVAL
		2053
		2054	int set_lk_max_objects (DB_ENV *env, U32 max)
		2055	CODE:
		2056	RETVAL = env->set_lk_max_objects (env, max);
		2057	OUTPUT:
		2058	RETVAL
		2059
		2060	int set_lg_bsize (DB_ENV *env, U32 max)
		2061	CODE:
		2062	RETVAL = env->set_lg_bsize (env, max);
		2063	OUTPUT:
		2064	RETVAL
		2065
		2066	int set_lg_max (DB_ENV *env, U32 max)
		2067	CODE:
		2068	RETVAL = env->set_lg_max (env, max);
		2069	OUTPUT:
		2070	RETVAL
		2071
		2072	int mutex_set_max (DB_ENV *env, U32 max)
		2073	CODE:
		2074	RETVAL = env->mutex_set_max (env, max);
		2075	OUTPUT:
		2076	RETVAL
		2077
		2078	int mutex_set_increment (DB_ENV *env, U32 increment)
		2079	CODE:
		2080	RETVAL = env->mutex_set_increment (env, increment);
		2081	OUTPUT:
		2082	RETVAL
		2083
		2084	int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
		2085	CODE:
		2086	RETVAL = env->mutex_set_tas_spins (env, tas_spins);
		2087	OUTPUT:
		2088	RETVAL
		2089
		2090	int mutex_set_align (DB_ENV *env, U32 align)
		2091	CODE:
		2092	RETVAL = env->mutex_set_align (env, align);
		2093	OUTPUT:
1234	RETVAL	2094	RETVAL
1235		2095
1236	DB_TXN *	2096	DB_TXN *
1237	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)	2097	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1238	CODE:	2098	CODE:
1239	errno = env->txn_begin (env, parent, &RETVAL, flags);	2099	errno = env->txn_begin (env, parent, &RETVAL, flags);
1240	if (errno)	2100	if (errno)
1241	croak ("txn_begin: %s", db_strerror (errno));	2101	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
1242	OUTPUT:	2102	OUTPUT:
1243	RETVAL	2103	RETVAL
1244		2104
1245	MODULE = BDB PACKAGE = BDB::Db	2105	MODULE = BDB PACKAGE = BDB::Db
1246		2106
1247	void	2107	void
1248	DESTROY (DB_ornull *db)	2108	DESTROY (DB_ornuked *db)
1249	CODE:	2109	CODE:
1250	if (db)	2110	if (db)
1251	{	2111	{
1252	SV *env = (SV *)db->app_private;	2112	SV *env = (SV *)db->app_private;
1253	db->close (db, 0);	2113	db->close (db, 0);
…		…
1258	CODE:	2118	CODE:
1259	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);	2119	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
1260	OUTPUT:	2120	OUTPUT:
1261	RETVAL	2121	RETVAL
1262		2122
1263	int set_flags (DB *db, U32 flags);	2123	int set_flags (DB *db, U32 flags)
1264	CODE:	2124	CODE:
1265	RETVAL = db->set_flags (db, flags);	2125	RETVAL = db->set_flags (db, flags);
1266	OUTPUT:	2126	OUTPUT:
1267	RETVAL	2127	RETVAL
1268		2128
…		…
1276	CODE:	2136	CODE:
1277	RETVAL = db->set_lorder (db, lorder);	2137	RETVAL = db->set_lorder (db, lorder);
1278	OUTPUT:	2138	OUTPUT:
1279	RETVAL	2139	RETVAL
1280		2140
1281
1282	int set_bt_minkey (DB *db, U32 minkey)	2141	int set_bt_minkey (DB *db, U32 minkey)
1283	CODE:	2142	CODE:
1284	RETVAL = db->set_bt_minkey (db, minkey);	2143	RETVAL = db->set_bt_minkey (db, minkey);
1285	OUTPUT:	2144	OUTPUT:
1286	RETVAL	2145	RETVAL
1287		2146
1288	int set_re_delim(DB *db, int delim);	2147	int set_re_delim (DB *db, int delim)
1289	CODE:	2148	CODE:
1290	RETVAL = db->set_re_delim (db, delim);	2149	RETVAL = db->set_re_delim (db, delim);
1291	OUTPUT:	2150	OUTPUT:
1292	RETVAL	2151	RETVAL
1293		2152
…		…
1325	CODE:	2184	CODE:
1326	RETVAL = db->set_q_extentsize (db, extentsize);	2185	RETVAL = db->set_q_extentsize (db, extentsize);
1327	OUTPUT:	2186	OUTPUT:
1328	RETVAL	2187	RETVAL
1329		2188
		2189	DBC *
		2190	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		2191	CODE:
		2192	errno = db->cursor (db, txn, &RETVAL, flags);
		2193	if (errno)
		2194	croak ("DB->cursor: %s", db_strerror (errno));
		2195	OUTPUT:
		2196	RETVAL
		2197
		2198	DB_SEQUENCE *
		2199	sequence (DB *db, U32 flags = 0)
		2200	CODE:
		2201	{
		2202	errno = db_sequence_create (&RETVAL, db, flags);
		2203	if (errno)
		2204	croak ("db_sequence_create: %s", db_strerror (errno));
		2205	}
		2206	OUTPUT:
		2207	RETVAL
		2208
		2209
1330	MODULE = BDB PACKAGE = BDB::Txn	2210	MODULE = BDB PACKAGE = BDB::Txn
1331		2211
1332	void	2212	void
1333	DESTROY (DB_TXN_ornull *txn)	2213	DESTROY (DB_TXN_ornuked *txn)
1334	CODE:	2214	CODE:
1335	if (txn)	2215	if (txn)
1336	txn->abort (txn);	2216	txn->abort (txn);
1337		2217
1338	int set_timeout (DB_TXN *txn, NV timeout, U32 flags)	2218	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1339	CODE:	2219	CODE:
1340	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);	2220	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1341	OUTPUT:	2221	OUTPUT:
1342	RETVAL	2222	RETVAL
1343		2223
		2224	int failed (DB_TXN *txn)
		2225	CODE:
		2226	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		2227	OUTPUT:
		2228	RETVAL
1344		2229
		2230
		2231	MODULE = BDB PACKAGE = BDB::Cursor
		2232
		2233	void
		2234	DESTROY (DBC_ornuked *dbc)
		2235	CODE:
		2236	if (dbc)
		2237	dbc->c_close (dbc);
		2238
		2239	#if DB_VERSION_MINOR >= 6
		2240
		2241	int set_priority (DBC *dbc, int priority)
		2242	CODE:
		2243	dbc->set_priority (dbc, priority);
		2244
		2245	#endif
		2246
		2247	MODULE = BDB PACKAGE = BDB::Sequence
		2248
		2249	void
		2250	DESTROY (DB_SEQUENCE_ornuked *seq)
		2251	CODE:
		2252	if (seq)
		2253	seq->close (seq, 0);
		2254
		2255	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		2256	CODE:
		2257	RETVAL = seq->initial_value (seq, value);
		2258	OUTPUT:
		2259	RETVAL
		2260
		2261	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		2262	CODE:
		2263	RETVAL = seq->set_cachesize (seq, size);
		2264	OUTPUT:
		2265	RETVAL
		2266
		2267	int set_flags (DB_SEQUENCE *seq, U32 flags)
		2268	CODE:
		2269	RETVAL = seq->set_flags (seq, flags);
		2270	OUTPUT:
		2271	RETVAL
		2272
		2273	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		2274	CODE:
		2275	RETVAL = seq->set_range (seq, min, max);
		2276	OUTPUT:
		2277	RETVAL
		2278
		2279

Diff Legend

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