[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 1.36 by root, Tue Aug 23 01:18:04 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	# elif __solaris /* not yet */
		29	# include <sys/sendfile.h>
		30	# else
		31	# error sendfile support requested but not available
		32	# endif
		33	#endif
23		34
24	#if __ia64	35	#if __ia64
25	# define STACKSIZE 65536	36	# define STACKSIZE 65536
26	#else	37	#else
27	# define STACKSIZE 4096	38	# define STACKSIZE 4096
…		…
29		40
30	enum {	41	enum {
31	REQ_QUIT,	42	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
36	};	50	};
37		51
38	typedef struct aio_cb {	52	typedef struct aio_cb {
39	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
40		54
41	int type;	55	int type;
42		56
43	int fd;	57	int fd, fd2;
44	off_t offset;	58	off_t offset;
45	size_t length;	59	size_t length;
46	ssize_t result;	60	ssize_t result;
47	mode_t mode; /* open */	61	mode_t mode; /* open */
48	int errorno;	62	int errorno;
49	SV data, callback, *fh;	63	SV data, callback;
50	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
51	STRLEN dataoffset;	66	STRLEN dataoffset;
52		67
53	Stat_t *statdata;	68	Stat_t *statdata;
54	} aio_cb;	69	} aio_cb;
55		70
56	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
57		72
58	static int started;	73	static int started, wanted;
59	static volatile int nreqs;	74	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
61	static int respipe [2];	76	static int respipe [2];
62		77
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		81
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	83	static volatile aio_req ress, rese; /* queue start, queue end */
		84
		85	static void free_req (aio_req req)
		86	{
		87	if (req->data)
		88	SvREFCNT_dec (req->data);
		89
		90	if (req->fh)
		91	SvREFCNT_dec (req->fh);
		92
		93	if (req->fh2)
		94	SvREFCNT_dec (req->fh2);
		95
		96	if (req->statdata)
		97	Safefree (req->statdata);
		98
		99	if (req->callback)
		100	SvREFCNT_dec (req->callback);
		101
		102	Safefree (req);
		103	}
69		104
70	static void	105	static void
71	poll_wait ()	106	poll_wait ()
72	{	107	{
73	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
83	static int	118	static int
84	poll_cb ()	119	poll_cb ()
85	{	120	{
86	dSP;	121	dSP;
87	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
88	aio_req req, prv;	124	aio_req req;
89		125
90	pthread_mutex_lock (&reslock);	126	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	{	127	{
		128	pthread_mutex_lock (&reslock);
		129	req = ress;
		130
		131	if (req)
		132	{
		133	ress = req->next;
		134
		135	if (!ress)
		136	{
		137	/* read any signals sent by the worker threads */
		138	char buf [32];
		139	while (read (respipe [0], buf, 32) == 32)
		140	;
		141
		142	rese = 0;
		143	}
		144	}
		145
		146	pthread_mutex_unlock (&reslock);
		147
		148	if (!req)
		149	break;
		150
106	nreqs--;	151	nreqs--;
107		152
108	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
109	started--;	154	started--;
110	else	155	else
111	{	156	{
112	int errorno = errno;	157	int errorno = errno;
113	errno = req->errorno;	158	errno = req->errorno;
114		159
115	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
116	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
117	+ req->result > 0 ? req->result : 0);
118		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
119	if (req->data)	166	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	{	167	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	169	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	171	}
133		172
134	ENTER;	173	ENTER;
135	PUSHMARK (SP);	174	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
153	if (SvOK (req->callback))	192	if (SvOK (req->callback))
154	{	193	{
155	PUTBACK;	194	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
158	}	203	}
159		204
160	LEAVE;	205	LEAVE;
161
162	if (req->callback)
163	SvREFCNT_dec (req->callback);
164		206
165	errno = errorno;	207	errno = errorno;
166	count++;	208	count++;
167	}	209	}
168		210
169	prv = req;	211	free_req (req);
170	req = req->next;
171	Safefree (prv);
172
173	/* TODO: croak on errors? */
174	}	212	}
175		213
176	return count;	214	return count;
177	}	215	}
178		216
…		…
199	}	237	}
200		238
201	static void	239	static void
202	send_req (aio_req req)	240	send_req (aio_req req)
203	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
204	nreqs++;	245	nreqs++;
205		246
206	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
207		248
208	req->next = 0;	249	req->next = 0;
…		…
216	reqe = reqs = req;	257	reqe = reqs = req;
217		258
218	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
219	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
220		261
221	while (nreqs > max_outstanding)	262	if (nreqs > max_outstanding)
		263	for (;;)
		264	{
		265	poll_cb ();
		266
		267	if (nreqs <= max_outstanding)
		268	break;
		269
		270	poll_wait ();
		271	}
		272	}
		273
		274	static void
		275	end_thread (void)
		276	{
		277	aio_req req;
		278	Newz (0, req, 1, aio_cb);
		279	req->type = REQ_QUIT;
		280
		281	send_req (req);
		282	}
		283
		284	static void min_parallel (int nthreads)
		285	{
		286	if (wanted < nthreads)
		287	wanted = nthreads;
		288	}
		289
		290	static void max_parallel (int nthreads)
		291	{
		292	int cur = started;
		293
		294	if (wanted > nthreads)
		295	wanted = nthreads;
		296
		297	while (cur > wanted)
		298	{
		299	end_thread ();
		300	cur--;
		301	}
		302
		303	while (started > wanted)
222	{	304	{
223	poll_wait ();	305	poll_wait ();
224	poll_cb ();	306	poll_cb ();
225	}	307	}
226	}	308	}
227		309
228	static void	310	static void create_pipe ()
229	end_thread (void)
230	{	311	{
		312	if (pipe (respipe))
		313	croak ("unable to initialize result pipe");
		314
		315	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		316	croak ("cannot set result pipe to nonblocking mode");
		317
		318	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		319	croak ("cannot set result pipe to nonblocking mode");
		320	}
		321
		322	static void atfork_prepare (void)
		323	{
		324	pthread_mutex_lock (&reqlock);
		325	pthread_mutex_lock (&reslock);
		326	}
		327
		328	static void atfork_parent (void)
		329	{
		330	pthread_mutex_unlock (&reslock);
		331	pthread_mutex_unlock (&reqlock);
		332	}
		333
		334	static void atfork_child (void)
		335	{
231	aio_req req;	336	aio_req prv;
232	New (0, req, 1, aio_cb);
233	req->type = REQ_QUIT;
234		337
235	send_req (req);	338	started = 0;
236	}
237		339
		340	while (reqs)
		341	{
		342	prv = reqs;
		343	reqs = prv->next;
		344	free_req (prv);
		345	}
		346
		347	reqs = reqe = 0;
		348
		349	while (ress)
		350	{
		351	prv = ress;
		352	ress = prv->next;
		353	free_req (prv);
		354	}
		355
		356	ress = rese = 0;
		357
		358	close (respipe [0]);
		359	close (respipe [1]);
		360	create_pipe ();
		361
		362	atfork_parent ();
		363	}
		364
		365	/*****************************************************************************/
238	/* work around various missing functions */	366	/* work around various missing functions */
239		367
240	#if !HAVE_PREADWRITE	368	#if !HAVE_PREADWRITE
241	# define pread aio_pread	369	# define pread aio_pread
242	# define pwrite aio_pwrite	370	# define pwrite aio_pwrite
…		…
304		432
305	errno = 0;	433	errno = 0;
306	}	434	}
307	#endif	435	#endif
308		436
		437	/* sendfile always needs emulation */
		438	static ssize_t
		439	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		440	{
		441	ssize_t res;
		442
		443	if (!count)
		444	return 0;
		445
		446	#if HAVE_SENDFILE
		447	# if __linux
		448	res = sendfile (ofd, ifd, &offset, count);
		449
		450	# elif __freebsd
		451	/*
		452	* Of course, the freebsd sendfile is a dire hack with no thoughts
		453	* wasted on making it similar to other I/O functions.
		454	*/
		455	{
		456	off_t sbytes;
		457	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		458
		459	if (res < 0 && sbytes)
		460	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
		461	res = sbytes;
		462	}
		463
		464	# elif __hpux
		465	res = sendfile (ofd, ifd, offset, count, 0, 0);
		466
		467	# elif __solaris
		468	{
		469	struct sendfilevec vec;
		470	size_t sbytes;
		471
		472	vec.sfv_fd = ifd;
		473	vec.sfv_flag = 0;
		474	vec.sfv_off = offset;
		475	vec.sfv_len = count;
		476
		477	res = sendfilev (ofd, &vec, 1, &sbytes);
		478
		479	if (res < 0 && sbytes)
		480	res = sbytes;
		481	}
		482
		483	# else
		484	res = -1;
		485	errno = ENOSYS;
		486	# endif
		487	#endif
		488
		489	if (res < 0
		490	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
		491	#if __solaris
		492	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE
		493	#endif
		494	)
		495	)
		496	{
		497	/* emulate sendfile. this is a major pain in the ass */
		498	char *buf = malloc (4096);
		499	res = 0;
		500
		501	for (;;)
		502	{
		503	ssize_t cnt;
		504
		505	cnt = pread (ifd, buf, 4096, offset);
		506
		507	if (cnt <= 0)
		508	{
		509	if (cnt && !res) res = -1;
		510	break;
		511	}
		512
		513	cnt = write (ofd, buf, cnt);
		514
		515	if (cnt <= 0)
		516	{
		517	if (cnt && !res) res = -1;
		518	break;
		519	}
		520
		521	offset += cnt;
		522	res += cnt;
		523	}
		524
		525	{
		526	int errorno = errno;
		527	free (buf);
		528	errno = errorno;
		529	}
		530	}
		531
		532	return res;
		533	}
		534
		535	/*****************************************************************************/
		536
309	static void *	537	static void *
310	aio_proc (void *thr_arg)	538	aio_proc (void *thr_arg)
311	{	539	{
312	aio_req req;	540	aio_req req;
313	int type;	541	int type;
…		…
342	{	570	{
343	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	571	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;	572	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
345		573
346	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	574	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		575	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
347		576
348	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	577	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
349	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	578	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
350	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	579	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
351		580
352	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	581	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
353	case REQ_CLOSE: req->result = close (req->fd); break;	582	case REQ_CLOSE: req->result = close (req->fd); break;
354	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	583	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		584	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		585	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
355		586
356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	587	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
357	case REQ_FSYNC: req->result = fsync (req->fd); break;	588	case REQ_FSYNC: req->result = fsync (req->fd); break;
358		589
359	case REQ_QUIT:	590	case REQ_QUIT:
…		…
388	while (type != REQ_QUIT);	619	while (type != REQ_QUIT);
389		620
390	return 0;	621	return 0;
391	}	622	}
392		623
		624	#define dREQ \
		625	aio_req req; \
		626	\
		627	if (SvOK (callback) && !SvROK (callback)) \
		628	croak ("clalback must be undef or of reference type"); \
		629	\
		630	Newz (0, req, 1, aio_cb); \
		631	if (!req) \
		632	croak ("out of memory during aio_req allocation"); \
		633	\
		634	req->callback = newSVsv (callback);
		635
393	MODULE = IO::AIO PACKAGE = IO::AIO	636	MODULE = IO::AIO PACKAGE = IO::AIO
394		637
395	PROTOTYPES: ENABLE	638	PROTOTYPES: ENABLE
396		639
397	BOOT:	640	BOOT:
398	{	641	{
399	if (pipe (respipe))	642	create_pipe ();
400	croak ("unable to initialize result pipe");	643	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	}	644	}
408		645
409	void	646	void
410	min_parallel(nthreads)	647	min_parallel(nthreads)
411	int nthreads	648	int nthreads
412	PROTOTYPE: $	649	PROTOTYPE: $
413	CODE:
414	while (nthreads > started)
415	start_thread ();
416		650
417	void	651	void
418	max_parallel(nthreads)	652	max_parallel(nthreads)
419	int nthreads	653	int nthreads
420	PROTOTYPE: $	654	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		655
437	int	656	int
438	max_outstanding(nreqs)	657	max_outstanding(nreqs)
439	int nreqs	658	int nreqs
440	PROTOTYPE: $	659	PROTOTYPE: $
…		…
449	int mode	668	int mode
450	SV * callback	669	SV * callback
451	PROTOTYPE: $$$;$	670	PROTOTYPE: $$$;$
452	CODE:	671	CODE:
453	{	672	{
454	aio_req req;	673	dREQ;
455
456	Newz (0, req, 1, aio_cb);
457
458	if (!req)
459	croak ("out of memory during aio_req allocation");
460		674
461	req->type = REQ_OPEN;	675	req->type = REQ_OPEN;
462	req->data = newSVsv (pathname);	676	req->data = newSVsv (pathname);
463	req->dataptr = SvPV_nolen (req->data);	677	req->dataptr = SvPVbyte_nolen (req->data);
464	req->fd = flags;	678	req->fd = flags;
465	req->mode = mode;	679	req->mode = mode;
466	req->callback = SvREFCNT_inc (callback);
467		680
468	send_req (req);	681	send_req (req);
469	}	682	}
470		683
471	void	684	void
…		…
477	aio_close = REQ_CLOSE	690	aio_close = REQ_CLOSE
478	aio_fsync = REQ_FSYNC	691	aio_fsync = REQ_FSYNC
479	aio_fdatasync = REQ_FDATASYNC	692	aio_fdatasync = REQ_FDATASYNC
480	CODE:	693	CODE:
481	{	694	{
482	aio_req req;	695	dREQ;
483
484	Newz (0, req, 1, aio_cb);
485
486	if (!req)
487	croak ("out of memory during aio_req allocation");
488		696
489	req->type = ix;	697	req->type = ix;
490	req->fh = newSVsv (fh);	698	req->fh = newSVsv (fh);
491	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	699	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
492	req->callback = SvREFCNT_inc (callback);
493		700
494	send_req (req);	701	send_req (req);
495	}	702	}
496		703
497	void	704	void
498	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	705	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
499	SV * fh	706	SV * fh
500	UV offset	707	UV offset
501	IV length	708	UV length
502	SV * data	709	SV * data
503	IV dataoffset	710	UV dataoffset
504	SV * callback	711	SV * callback
505	ALIAS:	712	ALIAS:
506	aio_read = REQ_READ	713	aio_read = REQ_READ
507	aio_write = REQ_WRITE	714	aio_write = REQ_WRITE
508	PROTOTYPE: $$$$$;$	715	PROTOTYPE: $$$$$;$
…		…
534	}	741	}
535		742
536	if (length < 0)	743	if (length < 0)
537	croak ("length must not be negative");	744	croak ("length must not be negative");
538		745
539	Newz (0, req, 1, aio_cb);	746	{
		747	dREQ;
540		748
541	if (!req)
542	croak ("out of memory during aio_req allocation");
543
544	req->type = ix;	749	req->type = ix;
545	req->fh = newSVsv (fh);	750	req->fh = newSVsv (fh);
546	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	751	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
547	: IoOFP (sv_2io (fh)));	752	: IoOFP (sv_2io (fh)));
548	req->offset = offset;	753	req->offset = offset;
		754	req->length = length;
		755	req->data = SvREFCNT_inc (data);
		756	req->dataptr = (char *)svptr + dataoffset;
		757
		758	if (!SvREADONLY (data))
		759	{
		760	SvREADONLY_on (data);
		761	req->data2ptr = (void *)data;
		762	}
		763
		764	send_req (req);
		765	}
		766	}
		767
		768	void
		769	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		770	SV * out_fh
		771	SV * in_fh
		772	UV in_offset
		773	UV length
		774	SV * callback
		775	PROTOTYPE: $$$$;$
		776	CODE:
		777	{
		778	dREQ;
		779
		780	req->type = REQ_SENDFILE;
		781	req->fh = newSVsv (out_fh);
		782	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		783	req->fh2 = newSVsv (in_fh);
		784	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		785	req->offset = in_offset;
549	req->length = length;	786	req->length = length;
550	req->data = SvREFCNT_inc (data);
551	req->dataptr = (char *)svptr + dataoffset;
552	req->callback = SvREFCNT_inc (callback);
553		787
554	send_req (req);	788	send_req (req);
555	}	789	}
556		790
557	void	791	void
…		…
561	IV length	795	IV length
562	SV * callback	796	SV * callback
563	PROTOTYPE: $$$;$	797	PROTOTYPE: $$$;$
564	CODE:	798	CODE:
565	{	799	{
566	aio_req req;	800	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		801
576	req->type = REQ_READAHEAD;	802	req->type = REQ_READAHEAD;
577	req->fh = newSVsv (fh);	803	req->fh = newSVsv (fh);
578	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	804	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
579	req->offset = offset;	805	req->offset = offset;
580	req->length = length;	806	req->length = length;
581	req->callback = SvREFCNT_inc (callback);
582		807
583	send_req (req);	808	send_req (req);
584	}	809	}
585		810
586	void	811	void
…		…
590	ALIAS:	815	ALIAS:
591	aio_stat = REQ_STAT	816	aio_stat = REQ_STAT
592	aio_lstat = REQ_LSTAT	817	aio_lstat = REQ_LSTAT
593	CODE:	818	CODE:
594	{	819	{
595	aio_req req;	820	dREQ;
596
597	Newz (0, req, 1, aio_cb);
598
599	if (!req)
600	croak ("out of memory during aio_req allocation");
601		821
602	New (0, req->statdata, 1, Stat_t);	822	New (0, req->statdata, 1, Stat_t);
603
604	if (!req->statdata)	823	if (!req->statdata)
		824	{
		825	free_req (req);
605	croak ("out of memory during aio_req->statdata allocation");	826	croak ("out of memory during aio_req->statdata allocation");
		827	}
606		828
607	if (SvPOK (fh_or_path))	829	if (SvPOK (fh_or_path))
608	{	830	{
609	req->type = ix;	831	req->type = ix;
610	req->data = newSVsv (fh_or_path);	832	req->data = newSVsv (fh_or_path);
611	req->dataptr = SvPV_nolen (req->data);	833	req->dataptr = SvPVbyte_nolen (req->data);
612	}	834	}
613	else	835	else
614	{	836	{
615	req->type = REQ_FSTAT;	837	req->type = REQ_FSTAT;
616	req->fh = newSVsv (fh_or_path);	838	req->fh = newSVsv (fh_or_path);
617	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	839	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
618	}	840	}
619		841
620	req->callback = SvREFCNT_inc (callback);
621
622	send_req (req);	842	send_req (req);
623	}	843	}
624		844
625	void	845	void
626	aio_unlink(pathname,callback=&PL_sv_undef)	846	aio_unlink(pathname,callback=&PL_sv_undef)
627	SV * pathname	847	SV * pathname
628	SV * callback	848	SV * callback
		849	ALIAS:
		850	aio_unlink = REQ_UNLINK
		851	aio_rmdir = REQ_RMDIR
629	CODE:	852	CODE:
630	{	853	{
631	aio_req req;	854	dREQ;
632		855
633	Newz (0, req, 1, aio_cb);	856	req->type = ix;
		857	req->data = newSVsv (pathname);
		858	req->dataptr = SvPVbyte_nolen (req->data);
634		859
635	if (!req)	860	send_req (req);
636	croak ("out of memory during aio_req allocation");	861	}
		862
		863	void
		864	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		865	SV * oldpath
		866	SV * newpath
		867	SV * callback
		868	CODE:
		869	{
		870	dREQ;
637		871
638	req->type = REQ_UNLINK;	872	req->type = REQ_SYMLINK;
		873	req->fh = newSVsv (oldpath);
		874	req->data2ptr = SvPVbyte_nolen (req->fh);
639	req->data = newSVsv (pathname);	875	req->data = newSVsv (newpath);
640	req->dataptr = SvPV_nolen (req->data);	876	req->dataptr = SvPVbyte_nolen (req->data);
641	req->callback = SvREFCNT_inc (callback);
642		877
643	send_req (req);	878	send_req (req);
644	}	879	}
645		880
646	void	881	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 1.36 by root, Tue Aug 23 01:18:04 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 1.36 by root, Tue Aug 23 01:18:04 2005 UTC