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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC

…		…
1	/* solaris */	1	/* solaris */
2	#define _POSIX_PTHREAD_SEMANTICS 1	2	#define _POSIX_PTHREAD_SEMANTICS 1
3		3
4	#if __linux	4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE	5	# define _GNU_SOURCE
6	#endif	6	#endif
7		7
		8	/* just in case */
8	#define _REENTRANT 1	9	#define _REENTRANT 1
9		10
10	#include <errno.h>	11	#include <errno.h>
11		12
12	#include "EXTERN.h"	13	#include "EXTERN.h"
42	# else	43	# else
43	# error sendfile support requested but not available	44	# error sendfile support requested but not available
44	# endif	45	# endif
45	#endif	46	#endif
46		47
		48	/* number of seconds after which idle threads exit */
		49	#define IDLE_TIMEOUT 10
		50
47	/* used for struct dirent, AIX doesn't provide it */	51	/* used for struct dirent, AIX doesn't provide it */
48	#ifndef NAME_MAX	52	#ifndef NAME_MAX
49	# define NAME_MAX 4096	53	# define NAME_MAX 4096
		54	#endif
		55
		56	#ifndef PTHREAD_STACK_MIN
		57	/* care for broken platforms, e.g. windows */
		58	# define PTHREAD_STACK_MIN 16384
50	#endif	59	#endif
51		60
52	#if __ia64	61	#if __ia64
53	# define STACKSIZE 65536	62	# define STACKSIZE 65536
54	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */	63	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
55	# define STACKSIZE PTHREAD_STACK_MIN	64	# define STACKSIZE PTHREAD_STACK_MIN
56	#else	65	#else
57	# define STACKSIZE 16384	66	# define STACKSIZE 16384
58	#endif	67	#endif
59		68
		69	/* wether word reads are potentially non-atomic.
		70	* this is conservatice, likely most arches this runs
		71	* on have atomic word read/writes.
		72	*/
		73	#ifndef WORDACCESS_UNSAFE
		74	# if __i386 \|\| __x86_64
		75	# define WORDACCESS_UNSAFE 0
		76	# else
		77	# define WORDACCESS_UNSAFE 1
		78	# endif
		79	#endif
		80
60	/* buffer size for various temporary buffers */	81	/* buffer size for various temporary buffers */
61	#define AIO_BUFSIZE 65536	82	#define AIO_BUFSIZE 65536
62		83
63	#define dBUF \	84	#define dBUF \
		85	char *aio_buf; \
		86	LOCK (wrklock); \
64	char *aio_buf = malloc (AIO_BUFSIZE); \	87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
		88	UNLOCK (wrklock); \
65	if (!aio_buf) \	89	if (!aio_buf) \
66	return -1;	90	return -1;
67
68	#define fBUF free (aio_buf)
69		91
70	enum {	92	enum {
71	REQ_QUIT,	93	REQ_QUIT,
72	REQ_OPEN, REQ_CLOSE,	94	REQ_OPEN, REQ_CLOSE,
73	REQ_READ, REQ_WRITE, REQ_READAHEAD,	95	REQ_READ, REQ_WRITE, REQ_READAHEAD,
74	REQ_SENDFILE,	96	REQ_SENDFILE,
75	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	97	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
76	REQ_FSYNC, REQ_FDATASYNC,	98	REQ_FSYNC, REQ_FDATASYNC,
77	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
78	REQ_READDIR,	100	REQ_MKNOD, REQ_READDIR,
79	REQ_LINK, REQ_SYMLINK,	101	REQ_LINK, REQ_SYMLINK,
80	REQ_GROUP, REQ_NOP,	102	REQ_GROUP, REQ_NOP,
81	REQ_BUSY,	103	REQ_BUSY,
82	};	104	};
83		105
…		…
123	DEFAULT_PRI = 0,	145	DEFAULT_PRI = 0,
124	PRI_BIAS = -PRI_MIN,	146	PRI_BIAS = -PRI_MIN,
125	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	147	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
126	};	148	};
127		149
		150	#define AIO_TICKS ((1000000 + 1023) >> 10)
		151
		152	static unsigned int max_poll_time = 0;
		153	static unsigned int max_poll_reqs = 0;
		154
		155	/* calculcate time difference in ~1/AIO_TICKS of a second */
		156	static int tvdiff (struct timeval tv1, struct timeval tv2)
		157	{
		158	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		159	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		160	}
		161
128	static int next_pri = DEFAULT_PRI + PRI_BIAS;	162	static int next_pri = DEFAULT_PRI + PRI_BIAS;
129		163
130	static int started, wanted;	164	static unsigned int started, idle, wanted;
131	static volatile int nreqs;
132	static int max_outstanding = 1<<30;
133	static int respipe [2];
134		165
135	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)	166	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
136	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP	167	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
137	#else	168	#else
138	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER	169	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
139	#endif	170	#endif
140		171
		172	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
		173	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
		174
		175	/* worker threads management */
		176	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
		177
		178	typedef struct worker {
		179	/* locked by wrklock */
		180	struct worker prev, next;
		181
		182	pthread_t tid;
		183
		184	/* locked by reslock, reqlock or wrklock */
		185	aio_req req; /* currently processed request */
		186	void *dbuf;
		187	DIR *dirp;
		188	} worker;
		189
		190	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
		191
		192	static void worker_clear (worker *wrk)
		193	{
		194	if (wrk->dirp)
		195	{
		196	closedir (wrk->dirp);
		197	wrk->dirp = 0;
		198	}
		199
		200	if (wrk->dbuf)
		201	{
		202	free (wrk->dbuf);
		203	wrk->dbuf = 0;
		204	}
		205	}
		206
		207	static void worker_free (worker *wrk)
		208	{
		209	wrk->next->prev = wrk->prev;
		210	wrk->prev->next = wrk->next;
		211
		212	free (wrk);
		213	}
		214
		215	static volatile unsigned int nreqs, nready, npending;
		216	static volatile unsigned int max_idle = 4;
		217	static volatile unsigned int max_outstanding = 0xffffffff;
		218	static int respipe [2];
		219
141	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	220	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
142	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	221	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
143	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	222	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
		223
		224	#if WORDACCESS_UNSAFE
		225
		226	static unsigned int get_nready ()
		227	{
		228	unsigned int retval;
		229
		230	LOCK (reqlock);
		231	retval = nready;
		232	UNLOCK (reqlock);
		233
		234	return retval;
		235	}
		236
		237	static unsigned int get_npending ()
		238	{
		239	unsigned int retval;
		240
		241	LOCK (reslock);
		242	retval = npending;
		243	UNLOCK (reslock);
		244
		245	return retval;
		246	}
		247
		248	static unsigned int get_nthreads ()
		249	{
		250	unsigned int retval;
		251
		252	LOCK (wrklock);
		253	retval = started;
		254	UNLOCK (wrklock);
		255
		256	return retval;
		257	}
		258
		259	#else
		260
		261	# define get_nready() nready
		262	# define get_npending() npending
		263	# define get_nthreads() started
		264
		265	#endif
144		266
145	/*	267	/*
146	* a somewhat faster data structure might be nice, but	268	* a somewhat faster data structure might be nice, but
147	* with 8 priorities this actually needs <20 insns	269	* with 8 priorities this actually needs <20 insns
148	* per shift, the most expensive operation.	270	* per shift, the most expensive operation.
…		…
194	}	316	}
195		317
196	abort ();	318	abort ();
197	}	319	}
198		320
		321	static int poll_cb ();
199	static void req_invoke (aio_req req);	322	static void req_invoke (aio_req req);
200	static void req_free (aio_req req);	323	static void req_free (aio_req req);
		324	static void req_cancel (aio_req req);
201		325
202	/* must be called at most once */	326	/* must be called at most once */
203	static SV req_sv (aio_req req, const char klass)	327	static SV req_sv (aio_req req, const char klass)
204	{	328	{
205	if (!req->self)	329	if (!req->self)
…		…
267	req_invoke (grp);	391	req_invoke (grp);
268	req_free (grp);	392	req_free (grp);
269	}	393	}
270	}	394	}
271		395
272	static void poll_wait ()
273	{
274	fd_set rfd;
275
276	while (nreqs)
277	{
278	int size;
279	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
280	pthread_mutex_lock (&reslock);
281	#endif
282	size = res_queue.size;
283	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
284	pthread_mutex_unlock (&reslock);
285	#endif
286
287	if (size)
288	return;
289
290	FD_ZERO(&rfd);
291	FD_SET(respipe [0], &rfd);
292
293	select (respipe [0] + 1, &rfd, 0, 0, 0);
294	}
295	}
296
297	static void req_invoke (aio_req req)	396	static void req_invoke (aio_req req)
298	{	397	{
299	dSP;	398	dSP;
300		399
301	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	400	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
302	{	401	{
303	errno = req->errorno;
304
305	ENTER;	402	ENTER;
306	SAVETMPS;	403	SAVETMPS;
307	PUSHMARK (SP);	404	PUSHMARK (SP);
308	EXTEND (SP, 1);	405	EXTEND (SP, 1);
309		406
…		…
313	{	410	{
314	SV *rv = &PL_sv_undef;	411	SV *rv = &PL_sv_undef;
315		412
316	if (req->result >= 0)	413	if (req->result >= 0)
317	{	414	{
		415	int i;
318	char *buf = req->data2ptr;	416	char *buf = req->data2ptr;
319	AV *av = newAV ();	417	AV *av = newAV ();
320		418
321	while (req->result)	419	av_extend (av, req->result - 1);
		420
		421	for (i = 0; i < req->result; ++i)
322	{	422	{
323	SV *sv = newSVpv (buf, 0);	423	SV *sv = newSVpv (buf, 0);
324		424
325	av_push (av, sv);	425	av_store (av, i, sv);
326	buf += SvCUR (sv) + 1;	426	buf += SvCUR (sv) + 1;
327	req->result--;
328	}	427	}
329		428
330	rv = sv_2mortal (newRV_noinc ((SV *)av));	429	rv = sv_2mortal (newRV_noinc ((SV *)av));
331	}	430	}
332		431
…		…
372	default:	471	default:
373	PUSHs (sv_2mortal (newSViv (req->result)));	472	PUSHs (sv_2mortal (newSViv (req->result)));
374	break;	473	break;
375	}	474	}
376		475
		476	errno = req->errorno;
377		477
378	PUTBACK;	478	PUTBACK;
379	call_sv (req->callback, G_VOID \| G_EVAL);	479	call_sv (req->callback, G_VOID \| G_EVAL);
380	SPAGAIN;	480	SPAGAIN;
381		481
…		…
416	SvREFCNT_dec (req->fh);	516	SvREFCNT_dec (req->fh);
417	SvREFCNT_dec (req->fh2);	517	SvREFCNT_dec (req->fh2);
418	SvREFCNT_dec (req->callback);	518	SvREFCNT_dec (req->callback);
419	Safefree (req->statdata);	519	Safefree (req->statdata);
420		520
421	if (req->type == REQ_READDIR && req->result >= 0)	521	if (req->type == REQ_READDIR)
422	free (req->data2ptr);	522	free (req->data2ptr);
423		523
424	Safefree (req);	524	Safefree (req);
425	}	525	}
426		526
		527	static void req_cancel_subs (aio_req grp)
		528	{
		529	aio_req sub;
		530
		531	if (grp->type != REQ_GROUP)
		532	return;
		533
		534	SvREFCNT_dec (grp->fh2);
		535	grp->fh2 = 0;
		536
		537	for (sub = grp->grp_first; sub; sub = sub->grp_next)
		538	req_cancel (sub);
		539	}
		540
427	static void req_cancel (aio_req req)	541	static void req_cancel (aio_req req)
428	{	542	{
429	req->flags \|= FLAG_CANCELLED;	543	req->flags \|= FLAG_CANCELLED;
430		544
431	if (req->type == REQ_GROUP)	545	req_cancel_subs (req);
432	{
433	aio_req sub;
434
435	for (sub = req->grp_first; sub; sub = sub->grp_next)
436	req_cancel (sub);
437	}
438	}
439
440	static int poll_cb ()
441	{
442	dSP;
443	int count = 0;
444	int do_croak = 0;
445	aio_req req;
446
447	for (;;)
448	{
449	pthread_mutex_lock (&reslock);
450	req = reqq_shift (&res_queue);
451
452	if (req)
453	{
454	if (!res_queue.size)
455	{
456	/* read any signals sent by the worker threads */
457	char buf [32];
458	while (read (respipe [0], buf, 32) == 32)
459	;
460	}
461	}
462
463	pthread_mutex_unlock (&reslock);
464
465	if (!req)
466	break;
467
468	--nreqs;
469
470	if (req->type == REQ_QUIT)
471	started--;
472	else if (req->type == REQ_GROUP && req->length)
473	{
474	req->fd = 1; /* mark request as delayed */
475	continue;
476	}
477	else
478	{
479	if (req->type == REQ_READ)
480	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
483	SvREADONLY_off (req->data);
484
485	if (req->statdata)
486	{
487	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488	PL_laststatval = req->result;
489	PL_statcache = *(req->statdata);
490	}
491
492	req_invoke (req);
493
494	count++;
495	}
496
497	req_free (req);
498	}
499
500	return count;
501	}	546	}
502		547
503	static void aio_proc(void arg);	548	static void aio_proc(void arg);
504		549
505	static void start_thread (void)	550	static void start_thread (void)
506	{	551	{
507	sigset_t fullsigset, oldsigset;	552	sigset_t fullsigset, oldsigset;
508	pthread_t tid;
509	pthread_attr_t attr;	553	pthread_attr_t attr;
		554
		555	worker *wrk = calloc (1, sizeof (worker));
		556
		557	if (!wrk)
		558	croak ("unable to allocate worker thread data");
510		559
511	pthread_attr_init (&attr);	560	pthread_attr_init (&attr);
512	pthread_attr_setstacksize (&attr, STACKSIZE);	561	pthread_attr_setstacksize (&attr, STACKSIZE);
513	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);	562	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
		563	#ifdef PTHREAD_SCOPE_PROCESS
		564	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
		565	#endif
514		566
515	sigfillset (&fullsigset);	567	sigfillset (&fullsigset);
		568
		569	LOCK (wrklock);
516	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);	570	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517		571
518	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)	572	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
		573	{
		574	wrk->prev = &wrk_first;
		575	wrk->next = wrk_first.next;
		576	wrk_first.next->prev = wrk;
		577	wrk_first.next = wrk;
519	started++;	578	++started;
		579	}
		580	else
		581	free (wrk);
520		582
521	sigprocmask (SIG_SETMASK, &oldsigset, 0);	583	sigprocmask (SIG_SETMASK, &oldsigset, 0);
		584	UNLOCK (wrklock);
		585	}
		586
		587	static void maybe_start_thread ()
		588	{
		589	if (get_nthreads () >= wanted)
		590	return;
		591
		592	/* todo: maybe use idle here, but might be less exact */
		593	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		594	return;
		595
		596	start_thread ();
522	}	597	}
523		598
524	static void req_send (aio_req req)	599	static void req_send (aio_req req)
525	{	600	{
526	while (started < wanted && nreqs >= started)
527	start_thread ();
528
529	++nreqs;	601	++nreqs;
530		602
531	pthread_mutex_lock (&reqlock);	603	LOCK (reqlock);
		604	++nready;
532	reqq_push (&req_queue, req);	605	reqq_push (&req_queue, req);
533	pthread_cond_signal (&reqwait);	606	pthread_cond_signal (&reqwait);
534	pthread_mutex_unlock (&reqlock);	607	UNLOCK (reqlock);
535		608
536	if (nreqs > max_outstanding)	609	maybe_start_thread ();
537	for (;;)
538	{
539	poll_cb ();
540
541	if (nreqs <= max_outstanding)
542	break;
543
544	poll_wait ();
545	}
546	}	610	}
547		611
548	static void end_thread (void)	612	static void end_thread (void)
549	{	613	{
550	aio_req req;	614	aio_req req;
…		…
552	Newz (0, req, 1, aio_cb);	616	Newz (0, req, 1, aio_cb);
553		617
554	req->type = REQ_QUIT;	618	req->type = REQ_QUIT;
555	req->pri = PRI_MAX + PRI_BIAS;	619	req->pri = PRI_MAX + PRI_BIAS;
556		620
557	req_send (req);	621	LOCK (reqlock);
		622	reqq_push (&req_queue, req);
		623	pthread_cond_signal (&reqwait);
		624	UNLOCK (reqlock);
		625
		626	LOCK (wrklock);
		627	--started;
		628	UNLOCK (wrklock);
		629	}
		630
		631	static void set_max_idle (int nthreads)
		632	{
		633	if (WORDACCESS_UNSAFE) LOCK (reqlock);
		634	max_idle = nthreads <= 0 ? 1 : nthreads;
		635	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
558	}	636	}
559		637
560	static void min_parallel (int nthreads)	638	static void min_parallel (int nthreads)
561	{	639	{
562	if (wanted < nthreads)	640	if (wanted < nthreads)
563	wanted = nthreads;	641	wanted = nthreads;
564	}	642	}
565		643
566	static void max_parallel (int nthreads)	644	static void max_parallel (int nthreads)
567	{	645	{
568	int cur = started;
569
570	if (wanted > nthreads)	646	if (wanted > nthreads)
571	wanted = nthreads;	647	wanted = nthreads;
572		648
573	while (cur > wanted)
574	{
575	end_thread ();
576	cur--;
577	}
578
579	while (started > wanted)	649	while (started > wanted)
		650	end_thread ();
		651	}
		652
		653	static void poll_wait ()
		654	{
		655	fd_set rfd;
		656
		657	while (nreqs)
		658	{
		659	int size;
		660	if (WORDACCESS_UNSAFE) LOCK (reslock);
		661	size = res_queue.size;
		662	if (WORDACCESS_UNSAFE) UNLOCK (reslock);
		663
		664	if (size)
		665	return;
		666
		667	maybe_start_thread ();
		668
		669	FD_ZERO(&rfd);
		670	FD_SET(respipe [0], &rfd);
		671
		672	select (respipe [0] + 1, &rfd, 0, 0, 0);
580	{	673	}
		674	}
		675
		676	static int poll_cb ()
		677	{
		678	dSP;
		679	int count = 0;
		680	int maxreqs = max_poll_reqs;
		681	int do_croak = 0;
		682	struct timeval tv_start, tv_now;
		683	aio_req req;
		684
		685	if (max_poll_time)
		686	gettimeofday (&tv_start, 0);
		687
		688	for (;;)
		689	{
		690	for (;;)
		691	{
		692	maybe_start_thread ();
		693
		694	LOCK (reslock);
		695	req = reqq_shift (&res_queue);
		696
		697	if (req)
		698	{
		699	--npending;
		700
		701	if (!res_queue.size)
		702	{
		703	/* read any signals sent by the worker threads */
		704	char buf [32];
		705	while (read (respipe [0], buf, 32) == 32)
		706	;
		707	}
		708	}
		709
		710	UNLOCK (reslock);
		711
		712	if (!req)
		713	break;
		714
		715	--nreqs;
		716
		717	if (req->type == REQ_GROUP && req->length)
		718	{
		719	req->fd = 1; /* mark request as delayed */
		720	continue;
		721	}
		722	else
		723	{
		724	if (req->type == REQ_READ)
		725	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
		726
		727	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		728	SvREADONLY_off (req->data);
		729
		730	if (req->statdata)
		731	{
		732	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		733	PL_laststatval = req->result;
		734	PL_statcache = *(req->statdata);
		735	}
		736
		737	req_invoke (req);
		738
		739	count++;
		740	}
		741
		742	req_free (req);
		743
		744	if (maxreqs && !--maxreqs)
		745	break;
		746
		747	if (max_poll_time)
		748	{
		749	gettimeofday (&tv_now, 0);
		750
		751	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		752	break;
		753	}
		754	}
		755
		756	if (nreqs <= max_outstanding)
		757	break;
		758
581	poll_wait ();	759	poll_wait ();
582	poll_cb ();	760
		761	++maxreqs;
583	}	762	}
		763
		764	return count;
584	}	765	}
585		766
586	static void create_pipe ()	767	static void create_pipe ()
587	{	768	{
588	if (pipe (respipe))	769	if (pipe (respipe))
…		…
612	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	793	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613	{	794	{
614	ssize_t res;	795	ssize_t res;
615	off_t ooffset;	796	off_t ooffset;
616		797
617	pthread_mutex_lock (&preadwritelock);	798	LOCK (preadwritelock);
618	ooffset = lseek (fd, 0, SEEK_CUR);	799	ooffset = lseek (fd, 0, SEEK_CUR);
619	lseek (fd, offset, SEEK_SET);	800	lseek (fd, offset, SEEK_SET);
620	res = read (fd, buf, count);	801	res = read (fd, buf, count);
621	lseek (fd, ooffset, SEEK_SET);	802	lseek (fd, ooffset, SEEK_SET);
622	pthread_mutex_unlock (&preadwritelock);	803	UNLOCK (preadwritelock);
623		804
624	return res;	805	return res;
625	}	806	}
626		807
627	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	808	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
628	{	809	{
629	ssize_t res;	810	ssize_t res;
630	off_t ooffset;	811	off_t ooffset;
631		812
632	pthread_mutex_lock (&preadwritelock);	813	LOCK (preadwritelock);
633	ooffset = lseek (fd, 0, SEEK_CUR);	814	ooffset = lseek (fd, 0, SEEK_CUR);
634	lseek (fd, offset, SEEK_SET);	815	lseek (fd, offset, SEEK_SET);
635	res = write (fd, buf, count);	816	res = write (fd, buf, count);
636	lseek (fd, offset, SEEK_SET);	817	lseek (fd, offset, SEEK_SET);
637	pthread_mutex_unlock (&preadwritelock);	818	UNLOCK (preadwritelock);
638		819
639	return res;	820	return res;
640	}	821	}
641	#endif	822	#endif
642		823
643	#if !HAVE_FDATASYNC	824	#if !HAVE_FDATASYNC
644	# define fdatasync fsync	825	# define fdatasync fsync
645	#endif	826	#endif
646		827
647	#if !HAVE_READAHEAD	828	#if !HAVE_READAHEAD
648	# define readahead aio_readahead	829	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
649		830
650	static ssize_t readahead (int fd, off_t offset, size_t count)	831	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
651	{	832	{
652	dBUF;	833	dBUF;
653		834
654	while (count > 0)	835	while (count > 0)
655	{	836	{
…		…
658	pread (fd, aio_buf, len, offset);	839	pread (fd, aio_buf, len, offset);
659	offset += len;	840	offset += len;
660	count -= len;	841	count -= len;
661	}	842	}
662		843
663	fBUF;
664
665	errno = 0;	844	errno = 0;
666	}	845	}
		846
667	#endif	847	#endif
668		848
669	#if !HAVE_READDIR_R	849	#if !HAVE_READDIR_R
670	# define readdir_r aio_readdir_r	850	# define readdir_r aio_readdir_r
671		851
…		…
674	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	854	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
675	{	855	{
676	struct dirent *e;	856	struct dirent *e;
677	int errorno;	857	int errorno;
678		858
679	pthread_mutex_lock (&readdirlock);	859	LOCK (readdirlock);
680		860
681	e = readdir (dirp);	861	e = readdir (dirp);
682	errorno = errno;	862	errorno = errno;
683		863
684	if (e)	864	if (e)
…		…
687	strcpy (ent->d_name, e->d_name);	867	strcpy (ent->d_name, e->d_name);
688	}	868	}
689	else	869	else
690	*res = 0;	870	*res = 0;
691		871
692	pthread_mutex_unlock (&readdirlock);	872	UNLOCK (readdirlock);
693		873
694	errno = errorno;	874	errno = errorno;
695	return e ? 0 : -1;	875	return e ? 0 : -1;
696	}	876	}
697	#endif	877	#endif
698		878
699	/* sendfile always needs emulation */	879	/* sendfile always needs emulation */
700	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)	880	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
701	{	881	{
702	ssize_t res;	882	ssize_t res;
703		883
704	if (!count)	884	if (!count)
705	return 0;	885	return 0;
…		…
716	{	896	{
717	off_t sbytes;	897	off_t sbytes;
718	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	898	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719		899
720	if (res < 0 && sbytes)	900	if (res < 0 && sbytes)
721	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	901	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
722	res = sbytes;	902	res = sbytes;
723	}	903	}
724		904
725	# elif __hpux	905	# elif __hpux
726	res = sendfile (ofd, ifd, offset, count, 0, 0);	906	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
782		962
783	offset += cnt;	963	offset += cnt;
784	res += cnt;	964	res += cnt;
785	count -= cnt;	965	count -= cnt;
786	}	966	}
787
788	fBUF;
789	}	967	}
790		968
791	return res;	969	return res;
792	}	970	}
793		971
794	/* read a full directory */	972	/* read a full directory */
795	static int scandir_ (const char path, void *namesp)	973	static void scandir_ (aio_req req, worker *self)
796	{	974	{
797	DIR *dirp;	975	DIR *dirp;
798	union	976	union
799	{	977	{
800	struct dirent d;	978	struct dirent d;
…		…
805	int memlen = 4096;	983	int memlen = 4096;
806	int memofs = 0;	984	int memofs = 0;
807	int res = 0;	985	int res = 0;
808	int errorno;	986	int errorno;
809		987
810	dirp = opendir (path);	988	LOCK (wrklock);
811	if (!dirp)	989	self->dirp = dirp = opendir (req->dataptr);
812	return -1;
813
814	u = malloc (sizeof (*u));	990	self->dbuf = u = malloc (sizeof (*u));
815	names = malloc (memlen);	991	req->data2ptr = names = malloc (memlen);
		992	UNLOCK (wrklock);
816		993
817	if (u && names)	994	if (dirp && u && names)
818	for (;;)	995	for (;;)
819	{	996	{
820	errno = 0;	997	errno = 0;
821	readdir_r (dirp, &u->d, &entp);	998	readdir_r (dirp, &u->d, &entp);
822		999
…		…
832	res++;	1009	res++;
833		1010
834	while (memofs + len > memlen)	1011	while (memofs + len > memlen)
835	{	1012	{
836	memlen *= 2;	1013	memlen *= 2;
		1014	LOCK (wrklock);
837	names = realloc (names, memlen);	1015	req->data2ptr = names = realloc (names, memlen);
		1016	UNLOCK (wrklock);
		1017
838	if (!names)	1018	if (!names)
839	break;	1019	break;
840	}	1020	}
841		1021
842	memcpy (names + memofs, name, len);	1022	memcpy (names + memofs, name, len);
843	memofs += len;	1023	memofs += len;
844	}	1024	}
845	}	1025	}
846		1026
847	errorno = errno;
848	free (u);
849	closedir (dirp);
850
851	if (errorno)	1027	if (errno)
852	{
853	free (names);
854	errno = errorno;
855	res = -1;	1028	res = -1;
856	}	1029
857		1030	req->result = res;
858	namesp = (void )names;
859	return res;
860	}	1031	}
861		1032
862	/*****************************************************************************/	1033	/*****************************************************************************/
863		1034
864	static void aio_proc (void thr_arg)	1035	static void aio_proc (void thr_arg)
865	{	1036	{
866	aio_req req;	1037	aio_req req;
867	int type;	1038	struct timespec ts;
		1039	worker self = (worker )thr_arg;
868		1040
869	do	1041	/* try to distribute timeouts somewhat evenly */
		1042	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
		1043	* (1000000000UL / 1024UL);
		1044
		1045	for (;;)
870	{	1046	{
871	pthread_mutex_lock (&reqlock);	1047	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1048
		1049	LOCK (reqlock);
872		1050
873	for (;;)	1051	for (;;)
874	{	1052	{
875	req = reqq_shift (&req_queue);	1053	self->req = req = reqq_shift (&req_queue);
876		1054
877	if (req)	1055	if (req)
878	break;	1056	break;
879		1057
		1058	++idle;
		1059
		1060	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
		1061	== ETIMEDOUT)
		1062	{
		1063	if (idle > max_idle)
		1064	{
		1065	--idle;
		1066	UNLOCK (reqlock);
		1067	LOCK (wrklock);
		1068	--started;
		1069	UNLOCK (wrklock);
		1070	goto quit;
		1071	}
		1072
		1073	/* we are allowed to idle, so do so without any timeout */
880	pthread_cond_wait (&reqwait, &reqlock);	1074	pthread_cond_wait (&reqwait, &reqlock);
		1075	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1076	}
		1077
		1078	--idle;
881	}	1079	}
882		1080
883	pthread_mutex_unlock (&reqlock);	1081	--nready;
		1082
		1083	UNLOCK (reqlock);
884		1084
885	errno = 0; /* strictly unnecessary */	1085	errno = 0; /* strictly unnecessary */
886	type = req->type; /* remember type for QUIT check */
887		1086
888	if (!(req->flags & FLAG_CANCELLED))	1087	if (!(req->flags & FLAG_CANCELLED))
889	switch (type)	1088	switch (req->type)
890	{	1089	{
891	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1090	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
892	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1091	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
893		1092
894	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1093	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
895	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	1094	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
896		1095
897	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1096	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
898	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1097	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
899	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1098	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
900		1099
…		…
903	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1102	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
904	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1103	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
905	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1104	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
906	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1105	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
907	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1106	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
		1107	case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
908		1108
909	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1109	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
910	case REQ_FSYNC: req->result = fsync (req->fd); break;	1110	case REQ_FSYNC: req->result = fsync (req->fd); break;
911	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	1111	case REQ_READDIR: scandir_ (req, self); break;
912		1112
913	case REQ_BUSY:	1113	case REQ_BUSY:
914	{	1114	{
915	struct timeval tv;	1115	struct timeval tv;
916		1116
…		…
920	req->result = select (0, 0, 0, 0, &tv);	1120	req->result = select (0, 0, 0, 0, &tv);
921	}	1121	}
922		1122
923	case REQ_GROUP:	1123	case REQ_GROUP:
924	case REQ_NOP:	1124	case REQ_NOP:
		1125	break;
		1126
925	case REQ_QUIT:	1127	case REQ_QUIT:
926	break;	1128	goto quit;
927		1129
928	default:	1130	default:
929	req->result = ENOSYS;	1131	req->result = ENOSYS;
930	break;	1132	break;
931	}	1133	}
932		1134
933	req->errorno = errno;	1135	req->errorno = errno;
934		1136
935	pthread_mutex_lock (&reslock);	1137	LOCK (reslock);
		1138
		1139	++npending;
936		1140
937	if (!reqq_push (&res_queue, req))	1141	if (!reqq_push (&res_queue, req))
938	/* write a dummy byte to the pipe so fh becomes ready */	1142	/* write a dummy byte to the pipe so fh becomes ready */
939	write (respipe [1], &respipe, 1);	1143	write (respipe [1], &respipe, 1);
940		1144
941	pthread_mutex_unlock (&reslock);	1145	self->req = 0;
		1146	worker_clear (self);
		1147
		1148	UNLOCK (reslock);
942	}	1149	}
943	while (type != REQ_QUIT);	1150
		1151	quit:
		1152	LOCK (wrklock);
		1153	worker_free (self);
		1154	UNLOCK (wrklock);
944		1155
945	return 0;	1156	return 0;
946	}	1157	}
947		1158
948	/*****************************************************************************/	1159	/*****************************************************************************/
949		1160
950	static void atfork_prepare (void)	1161	static void atfork_prepare (void)
951	{	1162	{
952	pthread_mutex_lock (&reqlock);	1163	LOCK (wrklock);
953	pthread_mutex_lock (&reslock);	1164	LOCK (reqlock);
		1165	LOCK (reslock);
954	#if !HAVE_PREADWRITE	1166	#if !HAVE_PREADWRITE
955	pthread_mutex_lock (&preadwritelock);	1167	LOCK (preadwritelock);
956	#endif	1168	#endif
957	#if !HAVE_READDIR_R	1169	#if !HAVE_READDIR_R
958	pthread_mutex_lock (&readdirlock);	1170	LOCK (readdirlock);
959	#endif	1171	#endif
960	}	1172	}
961		1173
962	static void atfork_parent (void)	1174	static void atfork_parent (void)
963	{	1175	{
964	#if !HAVE_READDIR_R	1176	#if !HAVE_READDIR_R
965	pthread_mutex_unlock (&readdirlock);	1177	UNLOCK (readdirlock);
966	#endif	1178	#endif
967	#if !HAVE_PREADWRITE	1179	#if !HAVE_PREADWRITE
968	pthread_mutex_unlock (&preadwritelock);	1180	UNLOCK (preadwritelock);
969	#endif	1181	#endif
970	pthread_mutex_unlock (&reslock);	1182	UNLOCK (reslock);
971	pthread_mutex_unlock (&reqlock);	1183	UNLOCK (reqlock);
		1184	UNLOCK (wrklock);
972	}	1185	}
973		1186
974	static void atfork_child (void)	1187	static void atfork_child (void)
975	{	1188	{
976	aio_req prv;	1189	aio_req prv;
977
978	started = 0;
979		1190
980	while (prv = reqq_shift (&req_queue))	1191	while (prv = reqq_shift (&req_queue))
981	req_free (prv);	1192	req_free (prv);
982		1193
983	while (prv = reqq_shift (&res_queue))	1194	while (prv = reqq_shift (&res_queue))
984	req_free (prv);	1195	req_free (prv);
985		1196
		1197	while (wrk_first.next != &wrk_first)
		1198	{
		1199	worker *wrk = wrk_first.next;
		1200
		1201	if (wrk->req)
		1202	req_free (wrk->req);
		1203
		1204	worker_clear (wrk);
		1205	worker_free (wrk);
		1206	}
		1207
		1208	started = 0;
		1209	idle = 0;
		1210	nreqs = 0;
		1211	nready = 0;
		1212	npending = 0;
		1213
986	close (respipe [0]);	1214	close (respipe [0]);
987	close (respipe [1]);	1215	close (respipe [1]);
988	create_pipe ();	1216	create_pipe ();
989		1217
990	atfork_parent ();	1218	atfork_parent ();
…		…
1016	PROTOTYPES: ENABLE	1244	PROTOTYPES: ENABLE
1017		1245
1018	BOOT:	1246	BOOT:
1019	{	1247	{
1020	HV *stash = gv_stashpv ("IO::AIO", 1);	1248	HV *stash = gv_stashpv ("IO::AIO", 1);
		1249
1021	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1250	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1022	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1251	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1023	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1252	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1253	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1254	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1255	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1024		1256
1025	create_pipe ();	1257	create_pipe ();
1026	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1258	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1027	}	1259	}
1028		1260
1029	void	1261	void
1030	min_parallel (nthreads)	1262	max_poll_reqs (int nreqs)
1031	int nthreads
1032	PROTOTYPE: $	1263	PROTOTYPE: $
		1264	CODE:
		1265	max_poll_reqs = nreqs;
1033		1266
1034	void	1267	void
1035	max_parallel (nthreads)	1268	max_poll_time (double nseconds)
1036	int nthreads
1037	PROTOTYPE: $	1269	PROTOTYPE: $
		1270	CODE:
		1271	max_poll_time = nseconds * AIO_TICKS;
		1272
		1273	void
		1274	min_parallel (int nthreads)
		1275	PROTOTYPE: $
		1276
		1277	void
		1278	max_parallel (int nthreads)
		1279	PROTOTYPE: $
		1280
		1281	void
		1282	max_idle (int nthreads)
		1283	PROTOTYPE: $
		1284	CODE:
		1285	set_max_idle (nthreads);
1038		1286
1039	int	1287	int
1040	max_outstanding (nreqs)	1288	max_outstanding (int maxreqs)
1041	int nreqs	1289	PROTOTYPE: $
1042	PROTOTYPE: $
1043	CODE:	1290	CODE:
1044	RETVAL = max_outstanding;	1291	RETVAL = max_outstanding;
1045	max_outstanding = nreqs;	1292	max_outstanding = maxreqs;
		1293	OUTPUT:
		1294	RETVAL
1046		1295
1047	void	1296	void
1048	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1297	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1049	SV * pathname	1298	SV * pathname
1050	int flags	1299	int flags
…		…
1265		1514
1266	REQ_SEND;	1515	REQ_SEND;
1267	}	1516	}
1268		1517
1269	void	1518	void
		1519	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)
		1520	SV * pathname
		1521	SV * callback
		1522	UV mode
		1523	UV dev
		1524	PPCODE:
		1525	{
		1526	dREQ;
		1527
		1528	req->type = REQ_MKNOD;
		1529	req->data = newSVsv (pathname);
		1530	req->dataptr = SvPVbyte_nolen (req->data);
		1531	req->mode = (mode_t)mode;
		1532	req->offset = dev;
		1533
		1534	REQ_SEND;
		1535	}
		1536
		1537	void
1270	aio_busy (delay,callback=&PL_sv_undef)	1538	aio_busy (delay,callback=&PL_sv_undef)
1271	double delay	1539	double delay
1272	SV * callback	1540	SV * callback
1273	PPCODE:	1541	PPCODE:
1274	{	1542	{
…		…
1305	req->type = REQ_NOP;	1573	req->type = REQ_NOP;
1306		1574
1307	REQ_SEND;	1575	REQ_SEND;
1308	}	1576	}
1309		1577
1310	void	1578	int
1311	aioreq_pri (int pri = DEFAULT_PRI)	1579	aioreq_pri (int pri = 0)
1312	CODE:	1580	PROTOTYPE: ;$
		1581	CODE:
		1582	RETVAL = next_pri - PRI_BIAS;
		1583	if (items > 0)
		1584	{
1313	if (pri < PRI_MIN) pri = PRI_MIN;	1585	if (pri < PRI_MIN) pri = PRI_MIN;
1314	if (pri > PRI_MAX) pri = PRI_MAX;	1586	if (pri > PRI_MAX) pri = PRI_MAX;
1315	next_pri = pri + PRI_BIAS;	1587	next_pri = pri + PRI_BIAS;
		1588	}
		1589	OUTPUT:
		1590	RETVAL
1316		1591
1317	void	1592	void
1318	aioreq_nice (int nice = 0)	1593	aioreq_nice (int nice = 0)
1319	CODE:	1594	CODE:
1320	nice = next_pri - nice;	1595	nice = next_pri - nice;
1321	if (nice < PRI_MIN) nice = PRI_MIN;	1596	if (nice < PRI_MIN) nice = PRI_MIN;
1322	if (nice > PRI_MAX) nice = PRI_MAX;	1597	if (nice > PRI_MAX) nice = PRI_MAX;
1323	next_pri = nice + PRI_BIAS;	1598	next_pri = nice + PRI_BIAS;
1324		1599
1325	void	1600	void
1326	flush ()	1601	flush ()
1327	PROTOTYPE:	1602	PROTOTYPE:
1328	CODE:	1603	CODE:
1329	while (nreqs)	1604	while (nreqs)
1330	{	1605	{
1331	poll_wait ();	1606	poll_wait ();
1332	poll_cb ();	1607	poll_cb (0);
1333	}	1608	}
1334		1609
1335	void	1610	void
1336	poll()	1611	poll()
1337	PROTOTYPE:	1612	PROTOTYPE:
1338	CODE:	1613	CODE:
1339	if (nreqs)	1614	if (nreqs)
1340	{	1615	{
1341	poll_wait ();	1616	poll_wait ();
1342	poll_cb ();	1617	poll_cb (0);
1343	}	1618	}
1344		1619
1345	int	1620	int
1346	poll_fileno()	1621	poll_fileno()
1347	PROTOTYPE:	1622	PROTOTYPE:
…		…
1371	CODE:	1646	CODE:
1372	RETVAL = nreqs;	1647	RETVAL = nreqs;
1373	OUTPUT:	1648	OUTPUT:
1374	RETVAL	1649	RETVAL
1375		1650
		1651	int
		1652	nready()
		1653	PROTOTYPE:
		1654	CODE:
		1655	RETVAL = get_nready ();
		1656	OUTPUT:
		1657	RETVAL
		1658
		1659	int
		1660	npending()
		1661	PROTOTYPE:
		1662	CODE:
		1663	RETVAL = get_npending ();
		1664	OUTPUT:
		1665	RETVAL
		1666
		1667	int
		1668	nthreads()
		1669	PROTOTYPE:
		1670	CODE:
		1671	if (WORDACCESS_UNSAFE) LOCK (wrklock);
		1672	RETVAL = started;
		1673	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
		1674	OUTPUT:
		1675	RETVAL
		1676
1376	PROTOTYPES: DISABLE	1677	PROTOTYPES: DISABLE
1377		1678
1378	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1679	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379		1680
1380	void	1681	void
…		…
1422	}	1723	}
1423	}	1724	}
1424	}	1725	}
1425		1726
1426	void	1727	void
		1728	cancel_subs (aio_req_ornot req)
		1729	CODE:
		1730	req_cancel_subs (req);
		1731
		1732	void
1427	result (aio_req grp, ...)	1733	result (aio_req grp, ...)
1428	CODE:	1734	CODE:
1429	{	1735	{
1430	int i;	1736	int i;
		1737	AV *av;
		1738
		1739	grp->errorno = errno;
		1740
1431	AV *av = newAV ();	1741	av = newAV ();
1432		1742
1433	for (i = 1; i < items; ++i )	1743	for (i = 1; i < items; ++i )
1434	av_push (av, newSVsv (ST (i)));	1744	av_push (av, newSVsv (ST (i)));
1435		1745
1436	SvREFCNT_dec (grp->data);	1746	SvREFCNT_dec (grp->data);
1437	grp->data = (SV *)av;	1747	grp->data = (SV *)av;
1438	}	1748	}
		1749
		1750	void
		1751	errno (aio_req grp, int errorno = errno)
		1752	CODE:
		1753	grp->errorno = errorno;
1439		1754
1440	void	1755	void
1441	limit (aio_req grp, int limit)	1756	limit (aio_req grp, int limit)
1442	CODE:	1757	CODE:
1443	grp->fd2 = limit;	1758	grp->fd2 = limit;

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs. Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC