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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.21 by root, Sun Aug 7 03:26:10 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

…		…
4	#include "EXTERN.h"	4	#include "EXTERN.h"
5	#include "perl.h"	5	#include "perl.h"
6	#include "XSUB.h"	6	#include "XSUB.h"
7		7
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
9		11
10	#include <sys/types.h>	12	#include <sys/types.h>
11	#include <sys/stat.h>	13	#include <sys/stat.h>
12		14
13	#include <unistd.h>	15	#include <unistd.h>
14	#include <fcntl.h>	16	#include <fcntl.h>
15	#include <signal.h>	17	#include <signal.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
18	#include <pthread.h>	20	#if HAVE_SENDFILE
19		21	# if __linux
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	24	# include <sys/socket.h>
		25	# include <sys/uio.h>
		26	# elif __hpux
		27	# include <sys/socket.h>
		28	# else
		29	# error sendfile support requested but not available
		30	# endif
		31	#endif
23		32
24	#if __ia64	33	#if __ia64
25	# define STACKSIZE 65536	34	# define STACKSIZE 65536
26	#else	35	#else
27	# define STACKSIZE 4096	36	# define STACKSIZE 4096
…		…
29		38
30	enum {	39	enum {
31	REQ_QUIT,	40	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	41	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	42	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		43	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	44	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	45	REQ_FSYNC, REQ_FDATASYNC,
		46	REQ_UNLINK, REQ_RMDIR,
		47	REQ_SYMLINK,
36	};	48	};
37		49
38	typedef struct aio_cb {	50	typedef struct aio_cb {
39	struct aio_cb *volatile next;	51	struct aio_cb *volatile next;
40		52
41	int type;	53	int type;
42		54
43	int fd;	55	int fd, fd2;
44	off_t offset;	56	off_t offset;
45	size_t length;	57	size_t length;
46	ssize_t result;	58	ssize_t result;
47	mode_t mode; /* open */	59	mode_t mode; /* open */
48	int errorno;	60	int errorno;
49	SV data, callback, *fh;	61	SV data, callback;
50	void *dataptr;	62	SV fh, fh2;
		63	void dataptr, data2ptr;
51	STRLEN dataoffset;	64	STRLEN dataoffset;
52		65
53	Stat_t *statdata;	66	Stat_t *statdata;
54	} aio_cb;	67	} aio_cb;
55		68
56	typedef aio_cb *aio_req;	69	typedef aio_cb *aio_req;
57		70
58	static int started;	71	static int started, wanted;
59	static volatile int nreqs;	72	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	73	static int max_outstanding = 1<<30;
61	static int respipe [2];	74	static int respipe [2];
62		75
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	76	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	77	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	78	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		79
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	80	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	81	static volatile aio_req ress, rese; /* queue start, queue end */
		82
		83	static void free_req (aio_req req)
		84	{
		85	if (req->data)
		86	SvREFCNT_dec (req->data);
		87
		88	if (req->fh)
		89	SvREFCNT_dec (req->fh);
		90
		91	if (req->fh2)
		92	SvREFCNT_dec (req->fh2);
		93
		94	if (req->statdata)
		95	Safefree (req->statdata);
		96
		97	if (req->callback)
		98	SvREFCNT_dec (req->callback);
		99
		100	Safefree (req);
		101	}
69		102
70	static void	103	static void
71	poll_wait ()	104	poll_wait ()
72	{	105	{
73	if (nreqs && !ress)	106	if (nreqs && !ress)
…		…
83	static int	116	static int
84	poll_cb ()	117	poll_cb ()
85	{	118	{
86	dSP;	119	dSP;
87	int count = 0;	120	int count = 0;
		121	int do_croak = 0;
88	aio_req req, prv;	122	aio_req req;
89		123
90	pthread_mutex_lock (&reslock);	124	for (;;)
91
92	{
93	/* read any signals sent by the worker threads */
94	char buf [32];
95	while (read (respipe [0], buf, 32) > 0)
96	;
97	}
98
99	req = ress;
100	ress = rese = 0;
101
102	pthread_mutex_unlock (&reslock);
103
104	while (req)
105	{	125	{
		126	pthread_mutex_lock (&reslock);
		127	req = ress;
		128
		129	if (req)
		130	{
		131	ress = req->next;
		132
		133	if (!ress)
		134	{
		135	/* read any signals sent by the worker threads */
		136	char buf [32];
		137	while (read (respipe [0], buf, 32) == 32)
		138	;
		139
		140	rese = 0;
		141	}
		142	}
		143
		144	pthread_mutex_unlock (&reslock);
		145
		146	if (!req)
		147	break;
		148
106	nreqs--;	149	nreqs--;
107		150
108	if (req->type == REQ_QUIT)	151	if (req->type == REQ_QUIT)
109	started--;	152	started--;
110	else	153	else
111	{	154	{
112	int errorno = errno;	155	int errorno = errno;
113	errno = req->errorno;	156	errno = req->errorno;
114		157
115	if (req->type == REQ_READ)	158	if (req->type == REQ_READ)
116	SvCUR_set (req->data, req->dataoffset	159	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
117	+ req->result > 0 ? req->result : 0);
118		160
		161	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		162	SvREADONLY_off (req->data);
		163
119	if (req->data)	164	if (req->statdata)
120	SvREFCNT_dec (req->data);
121
122	if (req->fh)
123	SvREFCNT_dec (req->fh);
124
125	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
126	{	165	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	166	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	167	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	168	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	169	}
133		170
134	ENTER;	171	ENTER;
135	PUSHMARK (SP);	172	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	173	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
153	if (SvOK (req->callback))	190	if (SvOK (req->callback))
154	{	191	{
155	PUTBACK;	192	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	193	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	194	SPAGAIN;
		195
		196	if (SvTRUE (ERRSV))
		197	{
		198	free_req (req);
		199	croak (0);
		200	}
158	}	201	}
159		202
160	LEAVE;	203	LEAVE;
161
162	if (req->callback)
163	SvREFCNT_dec (req->callback);
164		204
165	errno = errorno;	205	errno = errorno;
166	count++;	206	count++;
167	}	207	}
168		208
169	prv = req;	209	free_req (req);
170	req = req->next;
171	Safefree (prv);
172
173	/* TODO: croak on errors? */
174	}	210	}
175		211
176	return count;	212	return count;
177	}	213	}
178		214
…		…
199	}	235	}
200		236
201	static void	237	static void
202	send_req (aio_req req)	238	send_req (aio_req req)
203	{	239	{
		240	while (started < wanted && nreqs >= started)
		241	start_thread ();
		242
204	nreqs++;	243	nreqs++;
205		244
206	pthread_mutex_lock (&reqlock);	245	pthread_mutex_lock (&reqlock);
207		246
208	req->next = 0;	247	req->next = 0;
…		…
216	reqe = reqs = req;	255	reqe = reqs = req;
217		256
218	pthread_cond_signal (&reqwait);	257	pthread_cond_signal (&reqwait);
219	pthread_mutex_unlock (&reqlock);	258	pthread_mutex_unlock (&reqlock);
220		259
221	while (nreqs > max_outstanding)	260	if (nreqs > max_outstanding)
		261	for (;;)
		262	{
		263	poll_cb ();
		264
		265	if (nreqs <= max_outstanding)
		266	break;
		267
		268	poll_wait ();
		269	}
		270	}
		271
		272	static void
		273	end_thread (void)
		274	{
		275	aio_req req;
		276	Newz (0, req, 1, aio_cb);
		277	req->type = REQ_QUIT;
		278
		279	send_req (req);
		280	}
		281
		282	static void min_parallel (int nthreads)
		283	{
		284	if (wanted < nthreads)
		285	wanted = nthreads;
		286	}
		287
		288	static void max_parallel (int nthreads)
		289	{
		290	int cur = started;
		291
		292	if (wanted > nthreads)
		293	wanted = nthreads;
		294
		295	while (cur > wanted)
		296	{
		297	end_thread ();
		298	cur--;
		299	}
		300
		301	while (started > wanted)
222	{	302	{
223	poll_wait ();	303	poll_wait ();
224	poll_cb ();	304	poll_cb ();
225	}	305	}
226	}	306	}
227		307
228	static void	308	static void create_pipe ()
229	end_thread (void)
230	{	309	{
		310	if (pipe (respipe))
		311	croak ("unable to initialize result pipe");
		312
		313	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		314	croak ("cannot set result pipe to nonblocking mode");
		315
		316	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		317	croak ("cannot set result pipe to nonblocking mode");
		318	}
		319
		320	static void atfork_prepare (void)
		321	{
		322	pthread_mutex_lock (&reqlock);
		323	pthread_mutex_lock (&reslock);
		324	}
		325
		326	static void atfork_parent (void)
		327	{
		328	pthread_mutex_unlock (&reslock);
		329	pthread_mutex_unlock (&reqlock);
		330	}
		331
		332	static void atfork_child (void)
		333	{
231	aio_req req;	334	aio_req prv;
232	New (0, req, 1, aio_cb);
233	req->type = REQ_QUIT;
234		335
235	send_req (req);	336	started = 0;
236	}
237		337
		338	while (reqs)
		339	{
		340	prv = reqs;
		341	reqs = prv->next;
		342	free_req (prv);
		343	}
		344
		345	reqs = reqe = 0;
		346
		347	while (ress)
		348	{
		349	prv = ress;
		350	ress = prv->next;
		351	free_req (prv);
		352	}
		353
		354	ress = rese = 0;
		355
		356	close (respipe [0]);
		357	close (respipe [1]);
		358	create_pipe ();
		359
		360	atfork_parent ();
		361	}
		362
		363	/*****************************************************************************/
238	/* work around various missing functions */	364	/* work around various missing functions */
239		365
240	#if !HAVE_PREADWRITE	366	#if !HAVE_PREADWRITE
241	# define pread aio_pread	367	# define pread aio_pread
242	# define pwrite aio_pwrite	368	# define pwrite aio_pwrite
…		…
304		430
305	errno = 0;	431	errno = 0;
306	}	432	}
307	#endif	433	#endif
308		434
		435	/* sendfile always needs emulation */
		436	static ssize_t
		437	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		438	{
		439	ssize_t res;
		440
		441	if (!count)
		442	return 0;
		443
		444	#if __linux
		445	res = sendfile (ofd, ifd, &offset, count);
		446
		447	#elif __freebsd
		448	/*
		449	* Of course, the freebsd sendfile is a dire hack with no thoughts
		450	* wasted on making it similar to other i/o functions.
		451	*/
		452	{
		453	off_t sbytes;
		454	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		455
		456	if (!res && errno == EAGAIN)
		457	/* maybe on others, too, as usual, the manpage leaves you guessing */
		458	res = sbytes;
		459	}
		460
		461	#elif __hpux
		462	res = sendfile (ofd, ifd, offset, count, 0, 0);
		463
		464	#else
		465	res = -1;
		466	errno = ENOSYS;
		467	#endif
		468
		469	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		470	{
		471	/* emulate sendfile. this is a major pain in the ass */
		472	char *buf = malloc (4096);
		473	res = 0;
		474
		475	for (;;)
		476	{
		477	ssize_t cnt;
		478
		479	cnt = pread (ifd, buf, 4096, offset);
		480
		481	if (cnt <= 0)
		482	{
		483	if (cnt && !res) res = -1;
		484	break;
		485	}
		486
		487	cnt = write (ofd, buf, cnt);
		488
		489	if (cnt <= 0)
		490	{
		491	if (cnt && !res) res = -1;
		492	break;
		493	}
		494
		495	offset += cnt;
		496	res += cnt;
		497	}
		498
		499	{
		500	int errorno = errno;
		501	free (buf);
		502	errno = errorno;
		503	}
		504	}
		505
		506	return res;
		507	}
		508
		509	/*****************************************************************************/
		510
309	static void *	511	static void *
310	aio_proc (void *thr_arg)	512	aio_proc (void *thr_arg)
311	{	513	{
312	aio_req req;	514	aio_req req;
313	int type;	515	int type;
…		…
342	{	544	{
343	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	545	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
344	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	546	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
345		547
346	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	548	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		549	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
347		550
348	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	551	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
349	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	552	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
350	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	553	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
351		554
352	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	555	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
353	case REQ_CLOSE: req->result = close (req->fd); break;	556	case REQ_CLOSE: req->result = close (req->fd); break;
354	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	557	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		558	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		559	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
355		560
356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	561	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
357	case REQ_FSYNC: req->result = fsync (req->fd); break;	562	case REQ_FSYNC: req->result = fsync (req->fd); break;
358		563
359	case REQ_QUIT:	564	case REQ_QUIT:
…		…
388	while (type != REQ_QUIT);	593	while (type != REQ_QUIT);
389		594
390	return 0;	595	return 0;
391	}	596	}
392		597
		598	#define dREQ \
		599	aio_req req; \
		600	\
		601	if (SvOK (callback) && !SvROK (callback)) \
		602	croak ("clalback must be undef or of reference type"); \
		603	\
		604	Newz (0, req, 1, aio_cb); \
		605	if (!req) \
		606	croak ("out of memory during aio_req allocation"); \
		607	\
		608	req->callback = newSVsv (callback);
		609
393	MODULE = IO::AIO PACKAGE = IO::AIO	610	MODULE = IO::AIO PACKAGE = IO::AIO
394		611
395	PROTOTYPES: ENABLE	612	PROTOTYPES: ENABLE
396		613
397	BOOT:	614	BOOT:
398	{	615	{
399	if (pipe (respipe))	616	create_pipe ();
400	croak ("unable to initialize result pipe");	617	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
401
402	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
403	croak ("cannot set result pipe to nonblocking mode");
404
405	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
406	croak ("cannot set result pipe to nonblocking mode");
407	}	618	}
408		619
409	void	620	void
410	min_parallel(nthreads)	621	min_parallel(nthreads)
411	int nthreads	622	int nthreads
412	PROTOTYPE: $	623	PROTOTYPE: $
413	CODE:
414	while (nthreads > started)
415	start_thread ();
416		624
417	void	625	void
418	max_parallel(nthreads)	626	max_parallel(nthreads)
419	int nthreads	627	int nthreads
420	PROTOTYPE: $	628	PROTOTYPE: $
421	CODE:
422	{
423	int cur = started;
424	while (cur > nthreads)
425	{
426	end_thread ();
427	cur--;
428	}
429
430	while (started > nthreads)
431	{
432	poll_wait ();
433	poll_cb ();
434	}
435	}
436		629
437	int	630	int
438	max_outstanding(nreqs)	631	max_outstanding(nreqs)
439	int nreqs	632	int nreqs
440	PROTOTYPE: $	633	PROTOTYPE: $
…		…
449	int mode	642	int mode
450	SV * callback	643	SV * callback
451	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
452	CODE:	645	CODE:
453	{	646	{
454	aio_req req;	647	dREQ;
455
456	Newz (0, req, 1, aio_cb);
457
458	if (!req)
459	croak ("out of memory during aio_req allocation");
460		648
461	req->type = REQ_OPEN;	649	req->type = REQ_OPEN;
462	req->data = newSVsv (pathname);	650	req->data = newSVsv (pathname);
463	req->dataptr = SvPV_nolen (req->data);	651	req->dataptr = SvPVbyte_nolen (req->data);
464	req->fd = flags;	652	req->fd = flags;
465	req->mode = mode;	653	req->mode = mode;
466	req->callback = SvREFCNT_inc (callback);
467		654
468	send_req (req);	655	send_req (req);
469	}	656	}
470		657
471	void	658	void
…		…
477	aio_close = REQ_CLOSE	664	aio_close = REQ_CLOSE
478	aio_fsync = REQ_FSYNC	665	aio_fsync = REQ_FSYNC
479	aio_fdatasync = REQ_FDATASYNC	666	aio_fdatasync = REQ_FDATASYNC
480	CODE:	667	CODE:
481	{	668	{
482	aio_req req;	669	dREQ;
483
484	Newz (0, req, 1, aio_cb);
485
486	if (!req)
487	croak ("out of memory during aio_req allocation");
488		670
489	req->type = ix;	671	req->type = ix;
490	req->fh = newSVsv (fh);	672	req->fh = newSVsv (fh);
491	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	673	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
492	req->callback = SvREFCNT_inc (callback);
493		674
494	send_req (req);	675	send_req (req);
495	}	676	}
496		677
497	void	678	void
498	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	679	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
499	SV * fh	680	SV * fh
500	UV offset	681	UV offset
501	IV length	682	UV length
502	SV * data	683	SV * data
503	IV dataoffset	684	UV dataoffset
504	SV * callback	685	SV * callback
505	ALIAS:	686	ALIAS:
506	aio_read = REQ_READ	687	aio_read = REQ_READ
507	aio_write = REQ_WRITE	688	aio_write = REQ_WRITE
508	PROTOTYPE: $$$$$;$	689	PROTOTYPE: $$$$$;$
…		…
534	}	715	}
535		716
536	if (length < 0)	717	if (length < 0)
537	croak ("length must not be negative");	718	croak ("length must not be negative");
538		719
539	Newz (0, req, 1, aio_cb);	720	{
		721	dREQ;
540		722
541	if (!req)
542	croak ("out of memory during aio_req allocation");
543
544	req->type = ix;	723	req->type = ix;
545	req->fh = newSVsv (fh);	724	req->fh = newSVsv (fh);
546	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	725	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
547	: IoOFP (sv_2io (fh)));	726	: IoOFP (sv_2io (fh)));
548	req->offset = offset;	727	req->offset = offset;
		728	req->length = length;
		729	req->data = SvREFCNT_inc (data);
		730	req->dataptr = (char *)svptr + dataoffset;
		731
		732	if (!SvREADONLY (data))
		733	{
		734	SvREADONLY_on (data);
		735	req->data2ptr = (void *)data;
		736	}
		737
		738	send_req (req);
		739	}
		740	}
		741
		742	void
		743	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		744	SV * out_fh
		745	SV * in_fh
		746	UV in_offset
		747	UV length
		748	SV * callback
		749	PROTOTYPE: $$$$;$
		750	CODE:
		751	{
		752	dREQ;
		753
		754	req->type = REQ_SENDFILE;
		755	req->fh = newSVsv (out_fh);
		756	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		757	req->fh2 = newSVsv (in_fh);
		758	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		759	req->offset = in_offset;
549	req->length = length;	760	req->length = length;
550	req->data = SvREFCNT_inc (data);
551	req->dataptr = (char *)svptr + dataoffset;
552	req->callback = SvREFCNT_inc (callback);
553		761
554	send_req (req);	762	send_req (req);
555	}	763	}
556		764
557	void	765	void
…		…
561	IV length	769	IV length
562	SV * callback	770	SV * callback
563	PROTOTYPE: $$$;$	771	PROTOTYPE: $$$;$
564	CODE:	772	CODE:
565	{	773	{
566	aio_req req;	774	dREQ;
567
568	if (length < 0)
569	croak ("length must not be negative");
570
571	Newz (0, req, 1, aio_cb);
572
573	if (!req)
574	croak ("out of memory during aio_req allocation");
575		775
576	req->type = REQ_READAHEAD;	776	req->type = REQ_READAHEAD;
577	req->fh = newSVsv (fh);	777	req->fh = newSVsv (fh);
578	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	778	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
579	req->offset = offset;	779	req->offset = offset;
580	req->length = length;	780	req->length = length;
581	req->callback = SvREFCNT_inc (callback);
582		781
583	send_req (req);	782	send_req (req);
584	}	783	}
585		784
586	void	785	void
…		…
590	ALIAS:	789	ALIAS:
591	aio_stat = REQ_STAT	790	aio_stat = REQ_STAT
592	aio_lstat = REQ_LSTAT	791	aio_lstat = REQ_LSTAT
593	CODE:	792	CODE:
594	{	793	{
595	aio_req req;	794	dREQ;
596
597	Newz (0, req, 1, aio_cb);
598
599	if (!req)
600	croak ("out of memory during aio_req allocation");
601		795
602	New (0, req->statdata, 1, Stat_t);	796	New (0, req->statdata, 1, Stat_t);
603
604	if (!req->statdata)	797	if (!req->statdata)
		798	{
		799	free_req (req);
605	croak ("out of memory during aio_req->statdata allocation");	800	croak ("out of memory during aio_req->statdata allocation");
		801	}
606		802
607	if (SvPOK (fh_or_path))	803	if (SvPOK (fh_or_path))
608	{	804	{
609	req->type = ix;	805	req->type = ix;
610	req->data = newSVsv (fh_or_path);	806	req->data = newSVsv (fh_or_path);
611	req->dataptr = SvPV_nolen (req->data);	807	req->dataptr = SvPVbyte_nolen (req->data);
612	}	808	}
613	else	809	else
614	{	810	{
615	req->type = REQ_FSTAT;	811	req->type = REQ_FSTAT;
616	req->fh = newSVsv (fh_or_path);	812	req->fh = newSVsv (fh_or_path);
617	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	813	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
618	}	814	}
619		815
620	req->callback = SvREFCNT_inc (callback);
621
622	send_req (req);	816	send_req (req);
623	}	817	}
624		818
625	void	819	void
626	aio_unlink(pathname,callback=&PL_sv_undef)	820	aio_unlink(pathname,callback=&PL_sv_undef)
627	SV * pathname	821	SV * pathname
628	SV * callback	822	SV * callback
		823	ALIAS:
		824	aio_unlink = REQ_UNLINK
		825	aio_rmdir = REQ_RMDIR
629	CODE:	826	CODE:
630	{	827	{
631	aio_req req;	828	dREQ;
632		829
633	Newz (0, req, 1, aio_cb);	830	req->type = ix;
		831	req->data = newSVsv (pathname);
		832	req->dataptr = SvPVbyte_nolen (req->data);
634		833
635	if (!req)	834	send_req (req);
636	croak ("out of memory during aio_req allocation");	835	}
		836
		837	void
		838	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		839	SV * oldpath
		840	SV * newpath
		841	SV * callback
		842	CODE:
		843	{
		844	dREQ;
637		845
638	req->type = REQ_UNLINK;	846	req->type = REQ_SYMLINK;
		847	req->fh = newSVsv (oldpath);
		848	req->data2ptr = SvPVbyte_nolen (req->fh);
639	req->data = newSVsv (pathname);	849	req->data = newSVsv (newpath);
640	req->dataptr = SvPV_nolen (req->data);	850	req->dataptr = SvPVbyte_nolen (req->data);
641	req->callback = SvREFCNT_inc (callback);
642		851
643	send_req (req);	852	send_req (req);
644	}	853	}
645		854
646	void	855	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.21 by root, Sun Aug 7 03:26:10 2005 UTC vs. Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.21 by root, Sun Aug 7 03:26:10 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC