[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.54 by root, Mon Oct 23 00:34:36 2006 UTC vs.
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC

…		…
		1	/* solaris */
		2	#define _POSIX_PTHREAD_SEMANTICS 1
		3
		4	#if __linux && !defined(_GNU_SOURCE)
		5	# define _GNU_SOURCE
		6	#endif
		7
		8	/* just in case */
1	#define _REENTRANT 1	9	#define _REENTRANT 1
		10
2	#include <errno.h>	11	#include <errno.h>
3		12
4	#include "EXTERN.h"	13	#include "EXTERN.h"
5	#include "perl.h"	14	#include "perl.h"
6	#include "XSUB.h"	15	#include "XSUB.h"
39	/* used for struct dirent, AIX doesn't provide it */	48	/* used for struct dirent, AIX doesn't provide it */
40	#ifndef NAME_MAX	49	#ifndef NAME_MAX
41	# define NAME_MAX 4096	50	# define NAME_MAX 4096
42	#endif	51	#endif
43		52
		53	#ifndef PTHREAD_STACK_MIN
		54	/* care for broken platforms, e.g. windows */
		55	# define PTHREAD_STACK_MIN 16384
		56	#endif
		57
44	#if __ia64	58	#if __ia64
45	# define STACKSIZE 65536	59	# define STACKSIZE 65536
		60	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		61	# define STACKSIZE PTHREAD_STACK_MIN
46	#else	62	#else
47	# define STACKSIZE 8192	63	# define STACKSIZE 16384
48	#endif	64	#endif
		65
		66	/* buffer size for various temporary buffers */
		67	#define AIO_BUFSIZE 65536
		68
		69	#define dBUF \
		70	char *aio_buf; \
		71	LOCK (wrklock); \
		72	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
		73	UNLOCK (wrklock); \
		74	if (!aio_buf) \
		75	return -1;
49		76
50	enum {	77	enum {
51	REQ_QUIT,	78	REQ_QUIT,
52	REQ_OPEN, REQ_CLOSE,	79	REQ_OPEN, REQ_CLOSE,
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,	80	REQ_READ, REQ_WRITE, REQ_READAHEAD,
…		…
56	REQ_FSYNC, REQ_FDATASYNC,	83	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	84	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,	85	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,	86	REQ_LINK, REQ_SYMLINK,
60	REQ_GROUP, REQ_NOP,	87	REQ_GROUP, REQ_NOP,
61	REQ_SLEEP,	88	REQ_BUSY,
62	};	89	};
63		90
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	91	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	92	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		93
67	typedef struct aio_cb	94	typedef struct aio_cb
68	{	95	{
69	struct aio_cb *volatile next;	96	struct aio_cb *volatile next;
70
71	struct aio_cb grp, grp_prev, grp_next, grp_first;
72
73	SV self; / the perl counterpart of this request, if any */
74		97
75	SV data, callback;	98	SV data, callback;
76	SV fh, fh2;	99	SV fh, fh2;
77	void dataptr, data2ptr;	100	void dataptr, data2ptr;
78	Stat_t *statdata;	101	Stat_t *statdata;
79	off_t offset;	102	off_t offset;
80	size_t length;	103	size_t length;
81	ssize_t result;	104	ssize_t result;
82		105
		106	STRLEN dataoffset;
83	int type;	107	int type;
84	int fd, fd2;	108	int fd, fd2;
85	int errorno;	109	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */	110	mode_t mode; /* open */
		111
88	unsigned char cancelled;	112	unsigned char flags;
		113	unsigned char pri;
		114
		115	SV self; / the perl counterpart of this request, if any */
		116	struct aio_cb grp, grp_prev, grp_next, grp_first;
89	} aio_cb;	117	} aio_cb;
		118
		119	enum {
		120	FLAG_CANCELLED = 0x01,
		121	};
90		122
91	typedef aio_cb *aio_req;	123	typedef aio_cb *aio_req;
92	typedef aio_cb *aio_req_ornot;	124	typedef aio_cb *aio_req_ornot;
93		125
		126	enum {
		127	PRI_MIN = -4,
		128	PRI_MAX = 4,
		129
		130	DEFAULT_PRI = 0,
		131	PRI_BIAS = -PRI_MIN,
		132	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
		133	};
		134
		135	static int next_pri = DEFAULT_PRI + PRI_BIAS;
		136
94	static int started, wanted;	137	static unsigned int started, wanted;
95	static volatile int nreqs;	138	static volatile unsigned int nreqs;
96	static int max_outstanding = 1<<30;	139	static volatile unsigned int max_outstanding = 0xffffffff;
97	static int respipe [2];	140	static int respipe [2];
98		141
		142	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		143	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		144	#else
		145	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		146	#endif
		147
		148	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
		149	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
		150
		151	/* worker threads management */
		152	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
		153
		154	typedef struct worker {
		155	/* locked by wrklock */
		156	struct worker prev, next;
		157
		158	pthread_t tid;
		159
		160	/* locked by reslock, reqlock or wrklock */
		161	aio_req req; /* currently processed request */
		162	void *dbuf;
		163	DIR *dirp;
		164	} worker;
		165
		166	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
		167
		168	static void worker_clear (worker *wrk)
		169	{
		170	if (wrk->dirp)
		171	{
		172	closedir (wrk->dirp);
		173	wrk->dirp = 0;
		174	}
		175
		176	if (wrk->dbuf)
		177	{
		178	free (wrk->dbuf);
		179	wrk->dbuf = 0;
		180	}
		181	}
		182
		183	static void worker_free (worker *wrk)
		184	{
		185	wrk->next->prev = wrk->prev;
		186	wrk->prev->next = wrk->next;
		187
		188	free (wrk);
		189	}
		190
99	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	191	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
100	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	192	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	193	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102		194
103	static volatile aio_req reqs, reqe; /* queue start, queue end */	195	/*
104	static volatile aio_req ress, rese; /* queue start, queue end */	196	* a somewhat faster data structure might be nice, but
		197	* with 8 priorities this actually needs <20 insns
		198	* per shift, the most expensive operation.
		199	*/
		200	typedef struct {
		201	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
		202	int size;
		203	} reqq;
105		204
		205	static reqq req_queue;
		206	static reqq res_queue;
		207
		208	int reqq_push (reqq *q, aio_req req)
		209	{
		210	int pri = req->pri;
		211	req->next = 0;
		212
		213	if (q->qe[pri])
		214	{
		215	q->qe[pri]->next = req;
		216	q->qe[pri] = req;
		217	}
		218	else
		219	q->qe[pri] = q->qs[pri] = req;
		220
		221	return q->size++;
		222	}
		223
		224	aio_req reqq_shift (reqq *q)
		225	{
		226	int pri;
		227
		228	if (!q->size)
		229	return 0;
		230
		231	--q->size;
		232
		233	for (pri = NUM_PRI; pri--; )
		234	{
		235	aio_req req = q->qs[pri];
		236
		237	if (req)
		238	{
		239	if (!(q->qs[pri] = req->next))
		240	q->qe[pri] = 0;
		241
		242	return req;
		243	}
		244	}
		245
		246	abort ();
		247	}
		248
		249	static int poll_cb (int max);
106	static void req_invoke (aio_req req);	250	static void req_invoke (aio_req req);
107	static void req_free (aio_req req);	251	static void req_free (aio_req req);
		252	static void req_cancel (aio_req req);
108		253
109	/* must be called at most once */	254	/* must be called at most once */
110	static SV req_sv (aio_req req, const char klass)	255	static SV req_sv (aio_req req, const char klass)
111	{	256	{
112	if (!req->self)	257	if (!req->self)
…		…
130	return mg ? (aio_req)mg->mg_ptr : 0;	275	return mg ? (aio_req)mg->mg_ptr : 0;
131	}	276	}
132		277
133	static void aio_grp_feed (aio_req grp)	278	static void aio_grp_feed (aio_req grp)
134	{	279	{
135	while (grp->length < grp->fd2)	280	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
136	{	281	{
137	int old_len = grp->length;	282	int old_len = grp->length;
138		283
139	if (grp->fh2 && SvOK (grp->fh2))	284	if (grp->fh2 && SvOK (grp->fh2))
140	{	285	{
…		…
143	ENTER;	288	ENTER;
144	SAVETMPS;	289	SAVETMPS;
145	PUSHMARK (SP);	290	PUSHMARK (SP);
146	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	291	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
147	PUTBACK;	292	PUTBACK;
148	call_sv (grp->fh2, G_VOID \| G_EVAL);	293	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
149	SPAGAIN;	294	SPAGAIN;
150	FREETMPS;	295	FREETMPS;
151	LEAVE;	296	LEAVE;
152	}	297	}
153		298
…		…
176	}	321	}
177	}	322	}
178		323
179	static void poll_wait ()	324	static void poll_wait ()
180	{	325	{
181	if (nreqs && !ress)
182	{
183	fd_set rfd;	326	fd_set rfd;
		327
		328	while (nreqs)
		329	{
		330	int size;
		331	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		332	LOCK (reslock);
		333	#endif
		334	size = res_queue.size;
		335	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		336	UNLOCK (reslock);
		337	#endif
		338
		339	if (size)
		340	return;
		341
184	FD_ZERO(&rfd);	342	FD_ZERO(&rfd);
185	FD_SET(respipe [0], &rfd);	343	FD_SET(respipe [0], &rfd);
186		344
187	select (respipe [0] + 1, &rfd, 0, 0, 0);	345	select (respipe [0] + 1, &rfd, 0, 0, 0);
188	}	346	}
189	}	347	}
190		348
191	static void req_invoke (aio_req req)	349	static void req_invoke (aio_req req)
192	{	350	{
193	dSP;	351	dSP;
194	int errorno = errno;
195		352
196	if (req->cancelled \|\| !SvOK (req->callback))	353	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
197	return;	354	{
198
199	errno = req->errorno;	355	errno = req->errorno;
200		356
201	ENTER;	357	ENTER;
202	SAVETMPS;	358	SAVETMPS;
203	PUSHMARK (SP);	359	PUSHMARK (SP);
204	EXTEND (SP, 1);	360	EXTEND (SP, 1);
205		361
206	switch (req->type)	362	switch (req->type)
207	{
208	case REQ_READDIR:
209	{	363	{
210	SV *rv = &PL_sv_undef;	364	case REQ_READDIR:
211
212	if (req->result >= 0)
213	{	365	{
214	char *buf = req->data2ptr;	366	SV *rv = &PL_sv_undef;
215	AV *av = newAV ();
216		367
217	while (req->result)	368	if (req->result >= 0)
218	{	369	{
		370	int i;
		371	char *buf = req->data2ptr;
		372	AV *av = newAV ();
		373
		374	av_extend (av, req->result - 1);
		375
		376	for (i = 0; i < req->result; ++i)
		377	{
219	SV *sv = newSVpv (buf, 0);	378	SV *sv = newSVpv (buf, 0);
220		379
221	av_push (av, sv);	380	av_store (av, i, sv);
222	buf += SvCUR (sv) + 1;	381	buf += SvCUR (sv) + 1;
223	req->result--;	382	}
		383
		384	rv = sv_2mortal (newRV_noinc ((SV *)av));
224	}	385	}
225		386
226	rv = sv_2mortal (newRV_noinc ((SV *)av));	387	PUSHs (rv);
227	}	388	}
		389	break;
228		390
229	PUSHs (rv);	391	case REQ_OPEN:
		392	{
		393	/* convert fd to fh */
		394	SV *fh;
		395
		396	PUSHs (sv_2mortal (newSViv (req->result)));
		397	PUTBACK;
		398	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		399	SPAGAIN;
		400
		401	fh = SvREFCNT_inc (POPs);
		402
		403	PUSHMARK (SP);
		404	XPUSHs (sv_2mortal (fh));
		405	}
		406	break;
		407
		408	case REQ_GROUP:
		409	req->fd = 2; /* mark group as finished */
		410
		411	if (req->data)
		412	{
		413	int i;
		414	AV av = (AV )req->data;
		415
		416	EXTEND (SP, AvFILL (av) + 1);
		417	for (i = 0; i <= AvFILL (av); ++i)
		418	PUSHs (*av_fetch (av, i, 0));
		419	}
		420	break;
		421
		422	case REQ_NOP:
		423	case REQ_BUSY:
		424	break;
		425
		426	default:
		427	PUSHs (sv_2mortal (newSViv (req->result)));
		428	break;
230	}	429	}
231	break;
232		430
233	case REQ_OPEN:
234	{
235	/* convert fd to fh */
236	SV *fh;
237		431
238	PUSHs (sv_2mortal (newSViv (req->result)));
239	PUTBACK;	432	PUTBACK;
240	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
241	SPAGAIN;
242
243	fh = SvREFCNT_inc (POPs);
244
245	PUSHMARK (SP);
246	XPUSHs (sv_2mortal (fh));
247	}
248	break;
249
250	case REQ_GROUP:
251	req->fd = 2; /* mark group as finished */
252
253	if (req->data)
254	{
255	int i;
256	AV av = (AV )req->data;
257
258	EXTEND (SP, AvFILL (av) + 1);
259	for (i = 0; i <= AvFILL (av); ++i)
260	PUSHs (*av_fetch (av, i, 0));
261	}
262	break;
263
264	case REQ_NOP:
265	case REQ_SLEEP:
266	break;
267
268	default:
269	PUSHs (sv_2mortal (newSViv (req->result)));
270	break;
271	}
272
273
274	PUTBACK;
275	call_sv (req->callback, G_VOID \| G_EVAL);	433	call_sv (req->callback, G_VOID \| G_EVAL);
276	SPAGAIN;	434	SPAGAIN;
277		435
278	FREETMPS;	436	FREETMPS;
279	LEAVE;	437	LEAVE;
280
281	errno = errorno;
282
283	if (SvTRUE (ERRSV))
284	{	438	}
285	req_free (req);
286	croak (0);
287	}
288	}
289		439
290	static void req_free (aio_req req)
291	{
292	if (req->grp)	440	if (req->grp)
293	{	441	{
294	aio_req grp = req->grp;	442	aio_req grp = req->grp;
295		443
296	/* unlink request */	444	/* unlink request */
…		…
301	grp->grp_first = req->grp_next;	449	grp->grp_first = req->grp_next;
302		450
303	aio_grp_dec (grp);	451	aio_grp_dec (grp);
304	}	452	}
305		453
		454	if (SvTRUE (ERRSV))
		455	{
		456	req_free (req);
		457	croak (0);
		458	}
		459	}
		460
		461	static void req_free (aio_req req)
		462	{
306	if (req->self)	463	if (req->self)
307	{	464	{
308	sv_unmagic (req->self, PERL_MAGIC_ext);	465	sv_unmagic (req->self, PERL_MAGIC_ext);
309	SvREFCNT_dec (req->self);	466	SvREFCNT_dec (req->self);
310	}	467	}
…		…
313	SvREFCNT_dec (req->fh);	470	SvREFCNT_dec (req->fh);
314	SvREFCNT_dec (req->fh2);	471	SvREFCNT_dec (req->fh2);
315	SvREFCNT_dec (req->callback);	472	SvREFCNT_dec (req->callback);
316	Safefree (req->statdata);	473	Safefree (req->statdata);
317		474
318	if (req->type == REQ_READDIR && req->result >= 0)	475	if (req->type == REQ_READDIR)
319	free (req->data2ptr);	476	free (req->data2ptr);
320		477
321	Safefree (req);	478	Safefree (req);
322	}	479	}
323		480
		481	static void req_cancel_subs (aio_req grp)
		482	{
		483	aio_req sub;
		484
		485	if (grp->type != REQ_GROUP)
		486	return;
		487
		488	SvREFCNT_dec (grp->fh2);
		489	grp->fh2 = 0;
		490
		491	for (sub = grp->grp_first; sub; sub = sub->grp_next)
		492	req_cancel (sub);
		493	}
		494
324	static void req_cancel (aio_req req)	495	static void req_cancel (aio_req req)
325	{	496	{
326	req->cancelled = 1;	497	req->flags \|= FLAG_CANCELLED;
327		498
328	if (req->type == REQ_GROUP)	499	req_cancel_subs (req);
329	{
330	aio_req sub;
331
332	for (sub = req->grp_first; sub; sub = sub->grp_next)
333	req_cancel (sub);
334	}
335	}	500	}
336		501
337	static int poll_cb ()	502	static int poll_cb (int max)
338	{	503	{
339	dSP;	504	dSP;
340	int count = 0;	505	int count = 0;
341	int do_croak = 0;	506	int do_croak = 0;
342	aio_req req;	507	aio_req req;
343		508
344	for (;;)	509	for (;;)
345	{	510	{
346	pthread_mutex_lock (&reslock);	511	while (max <= 0 \|\| count < max)
347	req = ress;
348
349	if (req)
350	{	512	{
351	ress = req->next;	513	LOCK (reslock);
		514	req = reqq_shift (&res_queue);
352		515
353	if (!ress)	516	if (req)
354	{	517	{
		518	if (!res_queue.size)
		519	{
355	/* read any signals sent by the worker threads */	520	/* read any signals sent by the worker threads */
356	char buf [32];	521	char buf [32];
357	while (read (respipe [0], buf, 32) == 32)	522	while (read (respipe [0], buf, 32) == 32)
		523	;
358	;	524	}
359
360	rese = 0;
361	}	525	}
		526
		527	UNLOCK (reslock);
		528
		529	if (!req)
		530	break;
		531
		532	--nreqs;
		533
		534	if (req->type == REQ_QUIT)
		535	--started;
		536	else if (req->type == REQ_GROUP && req->length)
		537	{
		538	req->fd = 1; /* mark request as delayed */
		539	continue;
		540	}
		541	else
		542	{
		543	if (req->type == REQ_READ)
		544	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
		545
		546	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		547	SvREADONLY_off (req->data);
		548
		549	if (req->statdata)
		550	{
		551	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		552	PL_laststatval = req->result;
		553	PL_statcache = *(req->statdata);
		554	}
		555
		556	req_invoke (req);
		557
		558	count++;
		559	}
		560
		561	req_free (req);
362	}	562	}
363		563
364	pthread_mutex_unlock (&reslock);	564	if (nreqs <= max_outstanding)
365
366	if (!req)
367	break;	565	break;
368		566
369	--nreqs;	567	poll_wait ();
370		568
371	if (req->type == REQ_QUIT)	569	max = 0;
372	started--;
373	else if (req->type == REQ_GROUP && req->length)
374	{
375	req->fd = 1; /* mark request as delayed */
376	continue;
377	}
378	else
379	{
380	if (req->type == REQ_READ)
381	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
382
383	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
384	SvREADONLY_off (req->data);
385
386	if (req->statdata)
387	{
388	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
389	PL_laststatval = req->result;
390	PL_statcache = *(req->statdata);
391	}
392
393	req_invoke (req);
394
395	count++;
396	}
397
398	req_free (req);
399	}	570	}
400		571
401	return count;	572	return count;
402	}	573	}
403		574
404	static void aio_proc(void arg);	575	static void aio_proc(void arg);
405		576
406	static void start_thread (void)	577	static void start_thread (void)
407	{	578	{
408	sigset_t fullsigset, oldsigset;	579	sigset_t fullsigset, oldsigset;
409	pthread_t tid;
410	pthread_attr_t attr;	580	pthread_attr_t attr;
		581
		582	worker *wrk = calloc (1, sizeof (worker));
		583
		584	if (!wrk)
		585	croak ("unable to allocate worker thread data");
411		586
412	pthread_attr_init (&attr);	587	pthread_attr_init (&attr);
413	pthread_attr_setstacksize (&attr, STACKSIZE);	588	pthread_attr_setstacksize (&attr, STACKSIZE);
414	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);	589	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
415		590
416	sigfillset (&fullsigset);	591	sigfillset (&fullsigset);
		592
		593	LOCK (wrklock);
417	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);	594	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
418		595
419	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)	596	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
		597	{
		598	wrk->prev = &wrk_first;
		599	wrk->next = wrk_first.next;
		600	wrk_first.next->prev = wrk;
		601	wrk_first.next = wrk;
420	started++;	602	++started;
		603	}
		604	else
		605	free (wrk);
421		606
422	sigprocmask (SIG_SETMASK, &oldsigset, 0);	607	sigprocmask (SIG_SETMASK, &oldsigset, 0);
		608	UNLOCK (wrklock);
423	}	609	}
424		610
425	static void req_send (aio_req req)	611	static void req_send (aio_req req)
426	{	612	{
427	while (started < wanted && nreqs >= started)	613	while (started < wanted && nreqs >= started)
428	start_thread ();	614	start_thread ();
429		615
430	++nreqs;	616	++nreqs;
431		617
432	pthread_mutex_lock (&reqlock);	618	LOCK (reqlock);
433		619	reqq_push (&req_queue, req);
434	req->next = 0;
435
436	if (reqe)
437	{
438	reqe->next = req;
439	reqe = req;
440	}
441	else
442	reqe = reqs = req;
443
444	pthread_cond_signal (&reqwait);	620	pthread_cond_signal (&reqwait);
445	pthread_mutex_unlock (&reqlock);	621	UNLOCK (reqlock);
446
447	if (nreqs > max_outstanding)
448	for (;;)
449	{
450	poll_cb ();
451
452	if (nreqs <= max_outstanding)
453	break;
454
455	poll_wait ();
456	}
457	}	622	}
458		623
459	static void end_thread (void)	624	static void end_thread (void)
460	{	625	{
461	aio_req req;	626	aio_req req;
		627
462	Newz (0, req, 1, aio_cb);	628	Newz (0, req, 1, aio_cb);
		629
463	req->type = REQ_QUIT;	630	req->type = REQ_QUIT;
		631	req->pri = PRI_MAX + PRI_BIAS;
464		632
465	req_send (req);	633	req_send (req);
466	}	634	}
467		635
468	static void min_parallel (int nthreads)	636	static void min_parallel (int nthreads)
…		…
485	}	653	}
486		654
487	while (started > wanted)	655	while (started > wanted)
488	{	656	{
489	poll_wait ();	657	poll_wait ();
490	poll_cb ();	658	poll_cb (0);
491	}	659	}
492	}	660	}
493		661
494	static void create_pipe ()	662	static void create_pipe ()
495	{	663	{
…		…
520	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	688	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
521	{	689	{
522	ssize_t res;	690	ssize_t res;
523	off_t ooffset;	691	off_t ooffset;
524		692
525	pthread_mutex_lock (&preadwritelock);	693	LOCK (preadwritelock);
526	ooffset = lseek (fd, 0, SEEK_CUR);	694	ooffset = lseek (fd, 0, SEEK_CUR);
527	lseek (fd, offset, SEEK_SET);	695	lseek (fd, offset, SEEK_SET);
528	res = read (fd, buf, count);	696	res = read (fd, buf, count);
529	lseek (fd, ooffset, SEEK_SET);	697	lseek (fd, ooffset, SEEK_SET);
530	pthread_mutex_unlock (&preadwritelock);	698	UNLOCK (preadwritelock);
531		699
532	return res;	700	return res;
533	}	701	}
534		702
535	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	703	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
536	{	704	{
537	ssize_t res;	705	ssize_t res;
538	off_t ooffset;	706	off_t ooffset;
539		707
540	pthread_mutex_lock (&preadwritelock);	708	LOCK (preadwritelock);
541	ooffset = lseek (fd, 0, SEEK_CUR);	709	ooffset = lseek (fd, 0, SEEK_CUR);
542	lseek (fd, offset, SEEK_SET);	710	lseek (fd, offset, SEEK_SET);
543	res = write (fd, buf, count);	711	res = write (fd, buf, count);
544	lseek (fd, offset, SEEK_SET);	712	lseek (fd, offset, SEEK_SET);
545	pthread_mutex_unlock (&preadwritelock);	713	UNLOCK (preadwritelock);
546		714
547	return res;	715	return res;
548	}	716	}
549	#endif	717	#endif
550		718
551	#if !HAVE_FDATASYNC	719	#if !HAVE_FDATASYNC
552	# define fdatasync fsync	720	# define fdatasync fsync
553	#endif	721	#endif
554		722
555	#if !HAVE_READAHEAD	723	#if !HAVE_READAHEAD
556	# define readahead aio_readahead	724	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
557		725
558	static ssize_t readahead (int fd, off_t offset, size_t count)	726	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
559	{	727	{
560	char readahead_buf[4096];	728	dBUF;
561		729
562	while (count > 0)	730	while (count > 0)
563	{	731	{
564	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	732	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
565		733
566	pread (fd, readahead_buf, len, offset);	734	pread (fd, aio_buf, len, offset);
567	offset += len;	735	offset += len;
568	count -= len;	736	count -= len;
569	}	737	}
570		738
571	errno = 0;	739	errno = 0;
572	}	740	}
		741
573	#endif	742	#endif
574		743
575	#if !HAVE_READDIR_R	744	#if !HAVE_READDIR_R
576	# define readdir_r aio_readdir_r	745	# define readdir_r aio_readdir_r
577		746
…		…
580	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	749	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
581	{	750	{
582	struct dirent *e;	751	struct dirent *e;
583	int errorno;	752	int errorno;
584		753
585	pthread_mutex_lock (&readdirlock);	754	LOCK (readdirlock);
586		755
587	e = readdir (dirp);	756	e = readdir (dirp);
588	errorno = errno;	757	errorno = errno;
589		758
590	if (e)	759	if (e)
…		…
593	strcpy (ent->d_name, e->d_name);	762	strcpy (ent->d_name, e->d_name);
594	}	763	}
595	else	764	else
596	*res = 0;	765	*res = 0;
597		766
598	pthread_mutex_unlock (&readdirlock);	767	UNLOCK (readdirlock);
599		768
600	errno = errorno;	769	errno = errorno;
601	return e ? 0 : -1;	770	return e ? 0 : -1;
602	}	771	}
603	#endif	772	#endif
604		773
605	/* sendfile always needs emulation */	774	/* sendfile always needs emulation */
606	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)	775	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
607	{	776	{
608	ssize_t res;	777	ssize_t res;
609		778
610	if (!count)	779	if (!count)
611	return 0;	780	return 0;
…		…
622	{	791	{
623	off_t sbytes;	792	off_t sbytes;
624	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	793	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
625		794
626	if (res < 0 && sbytes)	795	if (res < 0 && sbytes)
627	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	796	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
628	res = sbytes;	797	res = sbytes;
629	}	798	}
630		799
631	# elif __hpux	800	# elif __hpux
632	res = sendfile (ofd, ifd, offset, count, 0, 0);	801	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
660	#endif	829	#endif
661	)	830	)
662	)	831	)
663	{	832	{
664	/* emulate sendfile. this is a major pain in the ass */	833	/* emulate sendfile. this is a major pain in the ass */
665	char buf[4096];	834	dBUF;
		835
666	res = 0;	836	res = 0;
667		837
668	while (count)	838	while (count)
669	{	839	{
670	ssize_t cnt;	840	ssize_t cnt;
671		841
672	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);	842	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
673		843
674	if (cnt <= 0)	844	if (cnt <= 0)
675	{	845	{
676	if (cnt && !res) res = -1;	846	if (cnt && !res) res = -1;
677	break;	847	break;
678	}	848	}
679		849
680	cnt = write (ofd, buf, cnt);	850	cnt = write (ofd, aio_buf, cnt);
681		851
682	if (cnt <= 0)	852	if (cnt <= 0)
683	{	853	{
684	if (cnt && !res) res = -1;	854	if (cnt && !res) res = -1;
685	break;	855	break;
…		…
693		863
694	return res;	864	return res;
695	}	865	}
696		866
697	/* read a full directory */	867	/* read a full directory */
698	static int scandir_ (const char path, void *namesp)	868	static void scandir_ (aio_req req, worker *self)
699	{	869	{
700	DIR *dirp = opendir (path);	870	DIR *dirp;
701	union	871	union
702	{	872	{
703	struct dirent d;	873	struct dirent d;
704	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	874	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
705	} u;	875	} *u;
706	struct dirent *entp;	876	struct dirent *entp;
707	char name, names;	877	char name, names;
708	int memlen = 4096;	878	int memlen = 4096;
709	int memofs = 0;	879	int memofs = 0;
710	int res = 0;	880	int res = 0;
711	int errorno;	881	int errorno;
712		882
713	if (!dirp)	883	LOCK (wrklock);
714	return -1;	884	self->dirp = dirp = opendir (req->dataptr);
715		885	self->dbuf = u = malloc (sizeof (*u));
716	names = malloc (memlen);	886	req->data2ptr = names = malloc (memlen);
		887	UNLOCK (wrklock);
717		888
		889	if (dirp && u && names)
718	for (;;)	890	for (;;)
719	{	891	{
		892	errno = 0;
720	errno = 0, readdir_r (dirp, &u.d, &entp);	893	readdir_r (dirp, &u->d, &entp);
721		894
722	if (!entp)	895	if (!entp)
723	break;	896	break;
724		897
725	name = entp->d_name;	898	name = entp->d_name;
726		899
727	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	900	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
728	{	901	{
729	int len = strlen (name) + 1;	902	int len = strlen (name) + 1;
730		903
731	res++;	904	res++;
732		905
733	while (memofs + len > memlen)	906	while (memofs + len > memlen)
734	{	907	{
735	memlen *= 2;	908	memlen *= 2;
		909	LOCK (wrklock);
736	names = realloc (names, memlen);	910	req->data2ptr = names = realloc (names, memlen);
		911	UNLOCK (wrklock);
		912
737	if (!names)	913	if (!names)
738	break;	914	break;
739	}	915	}
740		916
741	memcpy (names + memofs, name, len);	917	memcpy (names + memofs, name, len);
742	memofs += len;	918	memofs += len;
743	}	919	}
744	}	920	}
745		921
746	errorno = errno;
747	closedir (dirp);
748
749	if (errorno)	922	if (errno)
750	{
751	free (names);
752	errno = errorno;
753	res = -1;	923	res = -1;
754	}	924
755		925	req->result = res;
756	namesp = (void )names;
757	return res;
758	}	926	}
759		927
760	/*****************************************************************************/	928	/*****************************************************************************/
761		929
762	static void aio_proc (void thr_arg)	930	static void aio_proc (void thr_arg)
763	{	931	{
764	aio_req req;	932	aio_req req;
765	int type;	933	int type;
		934	worker self = (worker )thr_arg;
766		935
767	do	936	do
768	{	937	{
769	pthread_mutex_lock (&reqlock);	938	LOCK (reqlock);
770		939
771	for (;;)	940	for (;;)
772	{	941	{
773	req = reqs;	942	self->req = req = reqq_shift (&req_queue);
774
775	if (reqs)
776	{
777	reqs = reqs->next;
778	if (!reqs) reqe = 0;
779	}
780		943
781	if (req)	944	if (req)
782	break;	945	break;
783		946
784	pthread_cond_wait (&reqwait, &reqlock);	947	pthread_cond_wait (&reqwait, &reqlock);
785	}	948	}
786		949
787	pthread_mutex_unlock (&reqlock);	950	UNLOCK (reqlock);
788		951
789	errno = 0; /* strictly unnecessary */	952	errno = 0; /* strictly unnecessary */
790
791	if (!req->cancelled)
792	switch (type = req->type) /* remember type for QUIT check */	953	type = req->type; /* remember type for QUIT check */
		954
		955	if (!(req->flags & FLAG_CANCELLED))
		956	switch (type)
793	{	957	{
794	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	958	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
795	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	959	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
796		960
797	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	961	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
798	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	962	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
799		963
800	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	964	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
801	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	965	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
802	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	966	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
803		967
…		…
809	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	973	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
810	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	974	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
811		975
812	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	976	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
813	case REQ_FSYNC: req->result = fsync (req->fd); break;	977	case REQ_FSYNC: req->result = fsync (req->fd); break;
814	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	978	case REQ_READDIR: scandir_ (req, self); break;
815		979
816	case REQ_SLEEP:	980	case REQ_BUSY:
817	{	981	{
818	struct timeval tv;	982	struct timeval tv;
819		983
820	tv.tv_sec = req->fd;	984	tv.tv_sec = req->fd;
821	tv.tv_usec = req->fd2;	985	tv.tv_usec = req->fd2;
822		986
823	req->result = select (0, 0, 0, 0, &tv);	987	req->result = select (0, 0, 0, 0, &tv);
824	}	988	}
825		989
826	case REQ_GROUP: /TODO: should not be handled here /	990	case REQ_GROUP:
827	case REQ_NOP: /TODO: should not be handled here /	991	case REQ_NOP:
828	case REQ_QUIT:	992	case REQ_QUIT:
829	break;	993	break;
830		994
831	default:	995	default:
832	req->result = ENOSYS;	996	req->result = ENOSYS;
833	break;	997	break;
834	}	998	}
835		999
836	req->errorno = errno;	1000	req->errorno = errno;
837		1001
838	pthread_mutex_lock (&reslock);	1002	LOCK (reslock);
839		1003
840	req->next = 0;	1004	if (!reqq_push (&res_queue, req))
841
842	if (rese)
843	{
844	rese->next = req;
845	rese = req;
846	}
847	else
848	{
849	rese = ress = req;
850
851	/* write a dummy byte to the pipe so fh becomes ready */	1005	/* write a dummy byte to the pipe so fh becomes ready */
852	write (respipe [1], &respipe, 1);	1006	write (respipe [1], &respipe, 1);
853	}
854		1007
855	pthread_mutex_unlock (&reslock);	1008	self->req = 0;
		1009	worker_clear (self);
		1010
		1011	UNLOCK (reslock);
856	}	1012	}
857	while (type != REQ_QUIT);	1013	while (type != REQ_QUIT);
858		1014
		1015	LOCK (wrklock);
		1016	worker_free (self);
		1017	UNLOCK (wrklock);
		1018
859	return 0;	1019	return 0;
860	}	1020	}
861		1021
862	/*****************************************************************************/	1022	/*****************************************************************************/
863		1023
864	static void atfork_prepare (void)	1024	static void atfork_prepare (void)
865	{	1025	{
866	pthread_mutex_lock (&reqlock);	1026	LOCK (wrklock);
867	pthread_mutex_lock (&reslock);	1027	LOCK (reqlock);
		1028	LOCK (reslock);
868	#if !HAVE_PREADWRITE	1029	#if !HAVE_PREADWRITE
869	pthread_mutex_lock (&preadwritelock);	1030	LOCK (preadwritelock);
870	#endif	1031	#endif
871	#if !HAVE_READDIR_R	1032	#if !HAVE_READDIR_R
872	pthread_mutex_lock (&readdirlock);	1033	LOCK (readdirlock);
873	#endif	1034	#endif
874	}	1035	}
875		1036
876	static void atfork_parent (void)	1037	static void atfork_parent (void)
877	{	1038	{
878	#if !HAVE_READDIR_R	1039	#if !HAVE_READDIR_R
879	pthread_mutex_unlock (&readdirlock);	1040	UNLOCK (readdirlock);
880	#endif	1041	#endif
881	#if !HAVE_PREADWRITE	1042	#if !HAVE_PREADWRITE
882	pthread_mutex_unlock (&preadwritelock);	1043	UNLOCK (preadwritelock);
883	#endif	1044	#endif
884	pthread_mutex_unlock (&reslock);	1045	UNLOCK (reslock);
885	pthread_mutex_unlock (&reqlock);	1046	UNLOCK (reqlock);
		1047	UNLOCK (wrklock);
886	}	1048	}
887		1049
888	static void atfork_child (void)	1050	static void atfork_child (void)
889	{	1051	{
890	aio_req prv;	1052	aio_req prv;
891		1053
		1054	while (prv = reqq_shift (&req_queue))
		1055	req_free (prv);
		1056
		1057	while (prv = reqq_shift (&res_queue))
		1058	req_free (prv);
		1059
		1060	while (wrk_first.next != &wrk_first)
		1061	{
		1062	worker *wrk = wrk_first.next;
		1063
		1064	if (wrk->req)
		1065	req_free (wrk->req);
		1066
		1067	worker_clear (wrk);
		1068	worker_free (wrk);
		1069	}
		1070
892	started = 0;	1071	started = 0;
893		1072	nreqs = 0;
894	while (reqs)
895	{
896	prv = reqs;
897	reqs = prv->next;
898	req_free (prv);
899	}
900
901	reqs = reqe = 0;
902
903	while (ress)
904	{
905	prv = ress;
906	ress = prv->next;
907	req_free (prv);
908	}
909
910	ress = rese = 0;
911		1073
912	close (respipe [0]);	1074	close (respipe [0]);
913	close (respipe [1]);	1075	close (respipe [1]);
914	create_pipe ();	1076	create_pipe ();
915		1077
916	atfork_parent ();	1078	atfork_parent ();
917	}	1079	}
918		1080
919	#define dREQ \	1081	#define dREQ \
920	aio_req req; \	1082	aio_req req; \
		1083	int req_pri = next_pri; \
		1084	next_pri = DEFAULT_PRI + PRI_BIAS; \
921	\	1085	\
922	if (SvOK (callback) && !SvROK (callback)) \	1086	if (SvOK (callback) && !SvROK (callback)) \
923	croak ("callback must be undef or of reference type"); \	1087	croak ("callback must be undef or of reference type"); \
924	\	1088	\
925	Newz (0, req, 1, aio_cb); \	1089	Newz (0, req, 1, aio_cb); \
926	if (!req) \	1090	if (!req) \
927	croak ("out of memory during aio_req allocation"); \	1091	croak ("out of memory during aio_req allocation"); \
928	\	1092	\
929	req->callback = newSVsv (callback)	1093	req->callback = newSVsv (callback); \
		1094	req->pri = req_pri
930		1095
931	#define REQ_SEND \	1096	#define REQ_SEND \
932	req_send (req); \	1097	req_send (req); \
933	\	1098	\
934	if (GIMME_V != G_VOID) \	1099	if (GIMME_V != G_VOID) \
…		…
948	create_pipe ();	1113	create_pipe ();
949	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1114	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
950	}	1115	}
951		1116
952	void	1117	void
953	min_parallel (nthreads)	1118	min_parallel (int nthreads)
954	int nthreads
955	PROTOTYPE: $	1119	PROTOTYPE: $
956		1120
957	void	1121	void
958	max_parallel (nthreads)	1122	max_parallel (int nthreads)
959	int nthreads
960	PROTOTYPE: $	1123	PROTOTYPE: $
961		1124
962	int	1125	int
963	max_outstanding (nreqs)	1126	max_outstanding (int maxreqs)
964	int nreqs	1127	PROTOTYPE: $
965	PROTOTYPE: $
966	CODE:	1128	CODE:
967	RETVAL = max_outstanding;	1129	RETVAL = max_outstanding;
968	max_outstanding = nreqs;	1130	max_outstanding = maxreqs;
		1131	OUTPUT:
		1132	RETVAL
969		1133
970	void	1134	void
971	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1135	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
972	SV * pathname	1136	SV * pathname
973	int flags	1137	int flags
…		…
1188		1352
1189	REQ_SEND;	1353	REQ_SEND;
1190	}	1354	}
1191		1355
1192	void	1356	void
1193	aio_sleep (delay,callback=&PL_sv_undef)	1357	aio_busy (delay,callback=&PL_sv_undef)
1194	double delay	1358	double delay
1195	SV * callback	1359	SV * callback
1196	PPCODE:	1360	PPCODE:
1197	{	1361	{
1198	dREQ;	1362	dREQ;
1199		1363
1200	req->type = REQ_SLEEP;	1364	req->type = REQ_BUSY;
1201	req->fd = delay < 0. ? 0 : delay;	1365	req->fd = delay < 0. ? 0 : delay;
1202	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);	1366	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1203		1367
1204	REQ_SEND;	1368	REQ_SEND;
1205	}	1369	}
…		…
1209	SV * callback	1373	SV * callback
1210	PROTOTYPE: ;$	1374	PROTOTYPE: ;$
1211	PPCODE:	1375	PPCODE:
1212	{	1376	{
1213	dREQ;	1377	dREQ;
		1378
1214	req->type = REQ_GROUP;	1379	req->type = REQ_GROUP;
1215	req_send (req);	1380	req_send (req);
		1381
1216	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1382	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1217	}	1383	}
1218		1384
1219	void	1385	void
1220	aio_nop (callback=&PL_sv_undef)	1386	aio_nop (callback=&PL_sv_undef)
…		…
1225		1391
1226	req->type = REQ_NOP;	1392	req->type = REQ_NOP;
1227		1393
1228	REQ_SEND;	1394	REQ_SEND;
1229	}	1395	}
		1396
		1397	void
		1398	aioreq_pri (int pri = DEFAULT_PRI)
		1399	CODE:
		1400	if (pri < PRI_MIN) pri = PRI_MIN;
		1401	if (pri > PRI_MAX) pri = PRI_MAX;
		1402	next_pri = pri + PRI_BIAS;
		1403
		1404	void
		1405	aioreq_nice (int nice = 0)
		1406	CODE:
		1407	nice = next_pri - nice;
		1408	if (nice < PRI_MIN) nice = PRI_MIN;
		1409	if (nice > PRI_MAX) nice = PRI_MAX;
		1410	next_pri = nice + PRI_BIAS;
1230		1411
1231	void	1412	void
1232	flush ()	1413	flush ()
1233	PROTOTYPE:	1414	PROTOTYPE:
1234	CODE:	1415	CODE:
1235	while (nreqs)	1416	while (nreqs)
1236	{	1417	{
1237	poll_wait ();	1418	poll_wait ();
1238	poll_cb ();	1419	poll_cb (0);
1239	}	1420	}
1240		1421
1241	void	1422	void
1242	poll()	1423	poll()
1243	PROTOTYPE:	1424	PROTOTYPE:
1244	CODE:	1425	CODE:
1245	if (nreqs)	1426	if (nreqs)
1246	{	1427	{
1247	poll_wait ();	1428	poll_wait ();
1248	poll_cb ();	1429	poll_cb (0);
1249	}	1430	}
1250		1431
1251	int	1432	int
1252	poll_fileno()	1433	poll_fileno()
1253	PROTOTYPE:	1434	PROTOTYPE:
…		…
1258		1439
1259	int	1440	int
1260	poll_cb(...)	1441	poll_cb(...)
1261	PROTOTYPE:	1442	PROTOTYPE:
1262	CODE:	1443	CODE:
1263	RETVAL = poll_cb ();	1444	RETVAL = poll_cb (0);
		1445	OUTPUT:
		1446	RETVAL
		1447
		1448	int
		1449	poll_some(int max = 0)
		1450	PROTOTYPE: $
		1451	CODE:
		1452	RETVAL = poll_cb (max);
1264	OUTPUT:	1453	OUTPUT:
1265	RETVAL	1454	RETVAL
1266		1455
1267	void	1456	void
1268	poll_wait()	1457	poll_wait()
…		…
1283		1472
1284	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1473	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1285		1474
1286	void	1475	void
1287	cancel (aio_req_ornot req)	1476	cancel (aio_req_ornot req)
1288	PROTOTYPE:
1289	CODE:	1477	CODE:
1290	req_cancel (req);	1478	req_cancel (req);
		1479
		1480	void
		1481	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1482	CODE:
		1483	SvREFCNT_dec (req->callback);
		1484	req->callback = newSVsv (callback);
1291		1485
1292	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1486	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1293		1487
1294	void	1488	void
1295	add (aio_req grp, ...)	1489	add (aio_req grp, ...)
…		…
1323	}	1517	}
1324	}	1518	}
1325	}	1519	}
1326		1520
1327	void	1521	void
		1522	cancel_subs (aio_req_ornot req)
		1523	CODE:
		1524	req_cancel_subs (req);
		1525
		1526	void
1328	result (aio_req grp, ...)	1527	result (aio_req grp, ...)
1329	CODE:	1528	CODE:
1330	{	1529	{
1331	int i;	1530	int i;
1332	AV *av = newAV ();	1531	AV *av = newAV ();
…		…
1337	SvREFCNT_dec (grp->data);	1536	SvREFCNT_dec (grp->data);
1338	grp->data = (SV *)av;	1537	grp->data = (SV *)av;
1339	}	1538	}
1340		1539
1341	void	1540	void
1342	lock (aio_req grp)
1343	CODE:
1344	++grp->length;
1345
1346	void
1347	unlock (aio_req grp)
1348	CODE:
1349	aio_grp_dec (grp);
1350
1351	void
1352	feeder_limit (aio_req grp, int limit)	1541	limit (aio_req grp, int limit)
1353	CODE:	1542	CODE:
1354	grp->fd2 = limit;	1543	grp->fd2 = limit;
1355	aio_grp_feed (grp);	1544	aio_grp_feed (grp);
1356		1545
1357	void	1546	void
1358	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)	1547	feed (aio_req grp, SV *callback=&PL_sv_undef)
1359	CODE:	1548	CODE:
1360	{	1549	{
1361	SvREFCNT_dec (grp->fh2);	1550	SvREFCNT_dec (grp->fh2);
1362	grp->fh2 = newSVsv (callback);	1551	grp->fh2 = newSVsv (callback);
1363		1552

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.54 by root, Mon Oct 23 00:34:36 2006 UTC vs. Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.54 by root, Mon Oct 23 00:34:36 2006 UTC vs.
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC