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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.10 by root, Wed Jul 13 00:13:09 2005 UTC vs.
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC

…		…
		1	#define _REENTRANT 1
		2	#include <errno.h>
		3
1	#include "EXTERN.h"	4	#include "EXTERN.h"
2	#include "perl.h"	5	#include "perl.h"
3	#include "XSUB.h"	6	#include "XSUB.h"
4		7
5	#define _XOPEN_SOURCE 500	8	#include "autoconf/config.h"
6		9
7	#include <sys/types.h>	10	#include <sys/types.h>
8	#include <sys/stat.h>	11	#include <sys/stat.h>
9		12
10	#include <unistd.h>	13	#include <unistd.h>
11	#include <fcntl.h>	14	#include <fcntl.h>
12	#include <signal.h>	15	#include <signal.h>
13	#include <sched.h>	16	#include <sched.h>
14	#if __linux
15	#include <sys/syscall.h>
16	#endif
17		17
18	#include <pthread.h>	18	#include <pthread.h>
19		19
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
29		29
30	enum {	30	enum {
31	REQ_QUIT,	31	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	32	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	33	REQ_READ, REQ_WRITE, REQ_READAHEAD,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	35	REQ_FSYNC, REQ_FDATASYNC,
		36	REQ_UNLINK, REQ_RMDIR,
		37	REQ_SYMLINK,
36	};	38	};
37		39
38	typedef struct aio_cb {	40	typedef struct aio_cb {
39	struct aio_cb *volatile next;	41	struct aio_cb *volatile next;
40		42
…		…
44	off_t offset;	46	off_t offset;
45	size_t length;	47	size_t length;
46	ssize_t result;	48	ssize_t result;
47	mode_t mode; /* open */	49	mode_t mode; /* open */
48	int errorno;	50	int errorno;
49	SV data, callback;	51	SV data, callback, *fh;
50	void *dataptr;	52	void dataptr, data2ptr;
51	STRLEN dataoffset;	53	STRLEN dataoffset;
52		54
53	Stat_t *statdata;	55	Stat_t *statdata;
54	} aio_cb;	56	} aio_cb;
55		57
56	typedef aio_cb *aio_req;	58	typedef aio_cb *aio_req;
57		59
58	static int started;	60	static int started;
59	static int nreqs;	61	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	62	static int max_outstanding = 1<<30;
61	static int respipe [2];	63	static int respipe [2];
62		64
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
		67	static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	68	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		69
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	70	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	71	static volatile aio_req ress, rese; /* queue start, queue end */
69		72
70	static void	73	static void
71	poll_wait ()	74	poll_wait ()
72	{	75	{
73	if (!nreqs)	76	if (nreqs && !ress)
74	return;	77	{
75
76	fd_set rfd;	78	fd_set rfd;
77	FD_ZERO(&rfd);	79	FD_ZERO(&rfd);
78	FD_SET(respipe [0], &rfd);	80	FD_SET(respipe [0], &rfd);
79		81
80	select (respipe [0] + 1, &rfd, 0, 0, 0);	82	select (respipe [0] + 1, &rfd, 0, 0, 0);
		83	}
81	}	84	}
82		85
83	static int	86	static int
84	poll_cb ()	87	poll_cb ()
85	{	88	{
86	dSP;	89	dSP;
87	int count = 0;	90	int count = 0;
		91	int do_croak = 0;
88	aio_req req;	92	aio_req req, prv;
89		93
		94	pthread_mutex_lock (&reslock);
		95
90	{	96	{
91	/* read and signals sent by the worker threads */	97	/* read any signals sent by the worker threads */
92	char buf [32];	98	char buf [32];
93	while (read (respipe [0], buf, 32) > 0)	99	while (read (respipe [0], buf, 32) == 32)
94	;	100	;
95	}	101	}
96		102
97	for (;;)	103	req = ress;
		104	ress = rese = 0;
		105
		106	pthread_mutex_unlock (&reslock);
		107
		108	while (req)
98	{	109	{
99	pthread_mutex_lock (&reslock);
100
101	req = ress;
102
103	if (ress)
104	{
105	ress = ress->next;
106	if (!ress) rese = 0;
107	}
108
109	pthread_mutex_unlock (&reslock);
110
111	if (!req)
112	break;
113
114	nreqs--;	110	nreqs--;
115		111
116	if (req->type == REQ_QUIT)	112	if (req->type == REQ_QUIT)
117	started--;	113	started--;
118	else	114	else
…		…
125	+ req->result > 0 ? req->result : 0);	121	+ req->result > 0 ? req->result : 0);
126		122
127	if (req->data)	123	if (req->data)
128	SvREFCNT_dec (req->data);	124	SvREFCNT_dec (req->data);
129		125
		126	if (req->fh)
		127	SvREFCNT_dec (req->fh);
		128
130	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	129	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
131	{	130	{
132	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	131	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
133	PL_laststatval = req->result;	132	PL_laststatval = req->result;
134	PL_statcache = *(req->statdata);	133	PL_statcache = *(req->statdata);
135		134
136	Safefree (req->statdata);	135	Safefree (req->statdata);
137	}	136	}
138		137
		138	ENTER;
139	PUSHMARK (SP);	139	PUSHMARK (SP);
140	XPUSHs (sv_2mortal (newSViv (req->result)));	140	XPUSHs (sv_2mortal (newSViv (req->result)));
141		141
142	if (req->type == REQ_OPEN)	142	if (req->type == REQ_OPEN)
143	{	143	{
…		…
146		146
147	PUTBACK;	147	PUTBACK;
148	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	148	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
149	SPAGAIN;	149	SPAGAIN;
150		150
151	fh = POPs;	151	fh = SvREFCNT_inc (POPs);
152		152
153	PUSHMARK (SP);	153	PUSHMARK (SP);
154	XPUSHs (fh);	154	XPUSHs (sv_2mortal (fh));
155	}	155	}
156		156
157	if (SvOK (req->callback))	157	if (SvOK (req->callback))
158	{	158	{
159	PUTBACK;	159	PUTBACK;
160	call_sv (req->callback, G_VOID \| G_EVAL);	160	call_sv (req->callback, G_VOID \| G_EVAL);
161	SPAGAIN;	161	SPAGAIN;
162	}	162	}
		163
		164	do_croak = SvTRUE (ERRSV);
		165
		166	LEAVE;
163		167
164	if (req->callback)	168	if (req->callback)
165	SvREFCNT_dec (req->callback);	169	SvREFCNT_dec (req->callback);
166		170
167	errno = errorno;	171	errno = errorno;
168	count++;	172	count++;
169	}	173	}
170		174
		175	prv = req;
		176	req = req->next;
171	Safefree (req);	177	Safefree (prv);
		178
		179	if (do_croak)
		180	croak (0);
172	}	181	}
173		182
174	return count;	183	return count;
175	}	184	}
176		185
…		…
231	req->type = REQ_QUIT;	240	req->type = REQ_QUIT;
232		241
233	send_req (req);	242	send_req (req);
234	}	243	}
235		244
236	static void
237	read_write (int dowrite, int fd, off_t offset, size_t length,
238	SV data, STRLEN dataoffset, SV callback)
239	{
240	aio_req req;
241	STRLEN svlen;
242	char *svptr = SvPV (data, svlen);
243		245
244	SvUPGRADE (data, SVt_PV);	246	static void min_parallel (int nthreads)
245	SvPOK_on (data);	247	{
		248	while (nthreads > started)
		249	start_thread ();
		250	}
246		251
247	if (dataoffset < 0)	252	static void max_parallel (int nthreads)
248	dataoffset += svlen;	253	{
		254	int cur = started;
		255	while (cur > nthreads)
		256	{
		257	end_thread ();
		258	cur--;
		259	}
249		260
250	if (dataoffset < 0 \|\| dataoffset > svlen)	261	while (started > nthreads)
251	croak ("data offset outside of string");
252
253	if (dowrite)
254	{	262	{
255	/* write: check length and adjust. */	263	poll_wait ();
256	if (length < 0 \|\| length + dataoffset > svlen)	264	poll_cb ();
257	length = svlen - dataoffset;
258	}	265	}
259	else	266	}
		267
		268	static int fork_started;
		269
		270	static void atfork_prepare (void)
		271	{
		272	int nstarted;
		273
		274	for (;;) {
		275	while (nreqs)
		276	{
		277	poll_wait ();
		278	poll_cb ();
		279	}
		280
		281	nstarted = started;
		282	max_parallel (0);
		283
		284	pthread_mutex_lock (&reqlock);
		285
		286	if (!nreqs && !started)
		287	break;
		288
		289	pthread_mutex_unlock (&reqlock);
		290
		291	min_parallel (fork_started);
		292	}
		293
		294	pthread_mutex_lock (&frklock);
		295	fork_started = nstarted;
		296	pthread_mutex_lock (&reslock);
		297
		298	assert (!started);
		299	assert (!nreqs);
		300	assert (!reqs && !reqe);
		301	assert (!ress && !rese);
		302	}
		303
		304	static void atfork_parent (void)
		305	{
		306	pthread_mutex_unlock (&reslock);
		307	pthread_mutex_unlock (&frklock);
		308	pthread_mutex_unlock (&reqlock);
		309
		310	min_parallel (fork_started);
		311	}
		312
		313	#define atfork_child atfork_parent
		314
		315	/*****************************************************************************/
		316	/* work around various missing functions */
		317
		318	#if !HAVE_PREADWRITE
		319	# define pread aio_pread
		320	# define pwrite aio_pwrite
		321
		322	/*
		323	* make our pread/pwrite safe against themselves, but not against
		324	* normal read/write by using a mutex. slows down execution a lot,
		325	* but that's your problem, not mine.
		326	*/
		327	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		328
		329	static ssize_t
		330	pread (int fd, void *buf, size_t count, off_t offset)
		331	{
		332	ssize_t res;
		333	off_t ooffset;
		334
		335	pthread_mutex_lock (&iolock);
		336	ooffset = lseek (fd, 0, SEEK_CUR);
		337	lseek (fd, offset, SEEK_SET);
		338	res = read (fd, buf, count);
		339	lseek (fd, ooffset, SEEK_SET);
		340	pthread_mutex_unlock (&iolock);
		341
		342	return res;
		343	}
		344
		345	static ssize_t
		346	pwrite (int fd, void *buf, size_t count, off_t offset)
		347	{
		348	ssize_t res;
		349	off_t ooffset;
		350
		351	pthread_mutex_lock (&iolock);
		352	ooffset = lseek (fd, 0, SEEK_CUR);
		353	lseek (fd, offset, SEEK_SET);
		354	res = write (fd, buf, count);
		355	lseek (fd, offset, SEEK_SET);
		356	pthread_mutex_unlock (&iolock);
		357
		358	return res;
		359	}
		360	#endif
		361
		362	#if !HAVE_FDATASYNC
		363	# define fdatasync fsync
		364	#endif
		365
		366	#if !HAVE_READAHEAD
		367	# define readahead aio_readahead
		368
		369	static char readahead_buf[4096];
		370
		371	static ssize_t
		372	readahead (int fd, off_t offset, size_t count)
		373	{
		374	while (count > 0)
260	{	375	{
261	/* read: grow scalar as necessary */	376	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
262	svptr = SvGROW (data, length + dataoffset);	377
		378	pread (fd, readahead_buf, len, offset);
		379	offset += len;
		380	count -= len;
263	}	381	}
264		382
265	if (length < 0)	383	errno = 0;
266	croak ("length must not be negative");
267
268	Newz (0, req, 1, aio_cb);
269
270	if (!req)
271	croak ("out of memory during aio_req allocation");
272
273	req->type = dowrite ? REQ_WRITE : REQ_READ;
274	req->fd = fd;
275	req->offset = offset;
276	req->length = length;
277	req->data = SvREFCNT_inc (data);
278	req->dataptr = (char *)svptr + dataoffset;
279	req->callback = SvREFCNT_inc (callback);
280
281	send_req (req);
282	}	384	}
		385	#endif
		386
		387	/*****************************************************************************/
283		388
284	static void *	389	static void *
285	aio_proc (void *thr_arg)	390	aio_proc (void *thr_arg)
286	{	391	{
287	aio_req req;	392	aio_req req;
…		…
315		420
316	switch (type)	421	switch (type)
317	{	422	{
318	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	423	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
319	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	424	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
320	#if SYS_readahead	425
321	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	426	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
322	#else
323	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
324	#endif
325		427
326	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	428	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
327	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	429	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
328	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	430	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
329		431
330	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	432	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
331	case REQ_CLOSE: req->result = close (req->fd); break;	433	case REQ_CLOSE: req->result = close (req->fd); break;
332	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	434	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		435	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		436	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
333		437
		438	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
334	case REQ_FSYNC: req->result = fsync (req->fd); break;	439	case REQ_FSYNC: req->result = fsync (req->fd); break;
335	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
336		440
337	case REQ_QUIT:	441	case REQ_QUIT:
338	break;	442	break;
339		443
340	default:	444	default:
…		…
366	while (type != REQ_QUIT);	470	while (type != REQ_QUIT);
367		471
368	return 0;	472	return 0;
369	}	473	}
370		474
		475	#define dREQ \
		476	aio_req req; \
		477	\
		478	if (SvOK (callback) && !SvROK (callback)) \
		479	croak ("clalback must be undef or of reference type"); \
		480	\
		481	Newz (0, req, 1, aio_cb); \
		482	if (!req) \
		483	croak ("out of memory during aio_req allocation"); \
		484	\
		485	req->callback = SvREFCNT_inc (callback);
		486
371	MODULE = IO::AIO PACKAGE = IO::AIO	487	MODULE = IO::AIO PACKAGE = IO::AIO
372		488
373	PROTOTYPES: ENABLE	489	PROTOTYPES: ENABLE
374		490
375	BOOT:	491	BOOT:
…		…
380	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	496	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
381	croak ("cannot set result pipe to nonblocking mode");	497	croak ("cannot set result pipe to nonblocking mode");
382		498
383	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	499	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
384	croak ("cannot set result pipe to nonblocking mode");	500	croak ("cannot set result pipe to nonblocking mode");
		501
		502	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
385	}	503	}
386		504
387	void	505	void
388	min_parallel(nthreads)	506	min_parallel(nthreads)
389	int nthreads	507	int nthreads
390	PROTOTYPE: $	508	PROTOTYPE: $
391	CODE:
392	while (nthreads > started)
393	start_thread ();
394		509
395	void	510	void
396	max_parallel(nthreads)	511	max_parallel(nthreads)
397	int nthreads	512	int nthreads
398	PROTOTYPE: $	513	PROTOTYPE: $
399	CODE:
400	{
401	int cur = started;
402	while (cur > nthreads)
403	{
404	end_thread ();
405	cur--;
406	}
407
408	while (started > nthreads)
409	{
410	poll_wait ();
411	poll_cb ();
412	}
413	}
414		514
415	int	515	int
416	max_outstanding(nreqs)	516	max_outstanding(nreqs)
417	int nreqs	517	int nreqs
418	PROTOTYPE: $	518	PROTOTYPE: $
…		…
427	int mode	527	int mode
428	SV * callback	528	SV * callback
429	PROTOTYPE: $$$;$	529	PROTOTYPE: $$$;$
430	CODE:	530	CODE:
431	{	531	{
432	aio_req req;	532	dREQ;
433
434	Newz (0, req, 1, aio_cb);
435
436	if (!req)
437	croak ("out of memory during aio_req allocation");
438		533
439	req->type = REQ_OPEN;	534	req->type = REQ_OPEN;
440	req->data = newSVsv (pathname);	535	req->data = newSVsv (pathname);
441	req->dataptr = SvPV_nolen (req->data);	536	req->dataptr = SvPVbyte_nolen (req->data);
442	req->fd = flags;	537	req->fd = flags;
443	req->mode = mode;	538	req->mode = mode;
444	req->callback = SvREFCNT_inc (callback);
445		539
446	send_req (req);	540	send_req (req);
447	}	541	}
448		542
449	void	543	void
450	aio_close(fh,callback=&PL_sv_undef)	544	aio_close(fh,callback=&PL_sv_undef)
451	InputStream fh	545	SV * fh
452	SV * callback	546	SV * callback
453	PROTOTYPE: $;$	547	PROTOTYPE: $;$
454	ALIAS:	548	ALIAS:
455	aio_close = REQ_CLOSE	549	aio_close = REQ_CLOSE
456	aio_fsync = REQ_FSYNC	550	aio_fsync = REQ_FSYNC
457	aio_fdatasync = REQ_FDATASYNC	551	aio_fdatasync = REQ_FDATASYNC
458	CODE:	552	CODE:
459	{	553	{
460	aio_req req;	554	dREQ;
461
462	Newz (0, req, 1, aio_cb);
463
464	if (!req)
465	croak ("out of memory during aio_req allocation");
466		555
467	req->type = ix;	556	req->type = ix;
		557	req->fh = newSVsv (fh);
468	req->fd = PerlIO_fileno (fh);	558	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
469	req->callback = SvREFCNT_inc (callback);
470		559
471	send_req (req);	560	send_req (req);
472	}	561	}
473		562
474	void	563	void
475	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	564	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
476	InputStream fh	565	SV * fh
477	UV offset	566	UV offset
478	IV length	567	IV length
479	SV * data	568	SV * data
480	IV dataoffset	569	IV dataoffset
481	SV * callback	570	SV * callback
		571	ALIAS:
		572	aio_read = REQ_READ
		573	aio_write = REQ_WRITE
482	PROTOTYPE: $$$$$;$	574	PROTOTYPE: $$$$$;$
483	CODE:	575	CODE:
484	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	576	{
		577	aio_req req;
		578	STRLEN svlen;
		579	char *svptr = SvPVbyte (data, svlen);
485		580
486	void	581	SvUPGRADE (data, SVt_PV);
487	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	582	SvPOK_on (data);
488	OutputStream fh	583
489	UV offset	584	if (dataoffset < 0)
490	IV length	585	dataoffset += svlen;
491	SV * data	586
492	IV dataoffset	587	if (dataoffset < 0 \|\| dataoffset > svlen)
493	SV * callback	588	croak ("data offset outside of string");
494	PROTOTYPE: $$$$$;$	589
495	CODE:	590	if (ix == REQ_WRITE)
496	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	591	{
		592	/* write: check length and adjust. */
		593	if (length < 0 \|\| length + dataoffset > svlen)
		594	length = svlen - dataoffset;
		595	}
		596	else
		597	{
		598	/* read: grow scalar as necessary */
		599	svptr = SvGROW (data, length + dataoffset);
		600	}
		601
		602	if (length < 0)
		603	croak ("length must not be negative");
		604
		605	{
		606	dREQ;
		607
		608	req->type = ix;
		609	req->fh = newSVsv (fh);
		610	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		611	: IoOFP (sv_2io (fh)));
		612	req->offset = offset;
		613	req->length = length;
		614	req->data = SvREFCNT_inc (data);
		615	req->dataptr = (char *)svptr + dataoffset;
		616	req->callback = SvREFCNT_inc (callback);
		617
		618	send_req (req);
		619	}
		620	}
497		621
498	void	622	void
499	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	623	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
500	InputStream fh	624	SV * fh
501	UV offset	625	UV offset
502	IV length	626	IV length
503	SV * callback	627	SV * callback
504	PROTOTYPE: $$$;$	628	PROTOTYPE: $$$;$
505	CODE:	629	CODE:
506	{	630	{
507	aio_req req;	631	dREQ;
508
509	if (length < 0)
510	croak ("length must not be negative");
511
512	Newz (0, req, 1, aio_cb);
513
514	if (!req)
515	croak ("out of memory during aio_req allocation");
516		632
517	req->type = REQ_READAHEAD;	633	req->type = REQ_READAHEAD;
		634	req->fh = newSVsv (fh);
518	req->fd = PerlIO_fileno (fh);	635	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
519	req->offset = offset;	636	req->offset = offset;
520	req->length = length;	637	req->length = length;
521	req->callback = SvREFCNT_inc (callback);
522		638
523	send_req (req);	639	send_req (req);
524	}	640	}
525		641
526	void	642	void
…		…
530	ALIAS:	646	ALIAS:
531	aio_stat = REQ_STAT	647	aio_stat = REQ_STAT
532	aio_lstat = REQ_LSTAT	648	aio_lstat = REQ_LSTAT
533	CODE:	649	CODE:
534	{	650	{
535	aio_req req;	651	dREQ;
536
537	Newz (0, req, 1, aio_cb);
538
539	if (!req)
540	croak ("out of memory during aio_req allocation");
541		652
542	New (0, req->statdata, 1, Stat_t);	653	New (0, req->statdata, 1, Stat_t);
543
544	if (!req->statdata)	654	if (!req->statdata)
545	croak ("out of memory during aio_req->statdata allocation");	655	croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
546		656
547	if (SvPOK (fh_or_path))	657	if (SvPOK (fh_or_path))
548	{	658	{
549	req->type = ix;	659	req->type = ix;
550	req->data = newSVsv (fh_or_path);	660	req->data = newSVsv (fh_or_path);
551	req->dataptr = SvPV_nolen (req->data);	661	req->dataptr = SvPVbyte_nolen (req->data);
552	}	662	}
553	else	663	else
554	{	664	{
555	req->type = REQ_FSTAT;	665	req->type = REQ_FSTAT;
		666	req->fh = newSVsv (fh_or_path);
556	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	667	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
557	}	668	}
558
559	req->callback = SvREFCNT_inc (callback);
560		669
561	send_req (req);	670	send_req (req);
562	}	671	}
563		672
564	void	673	void
565	aio_unlink(pathname,callback=&PL_sv_undef)	674	aio_unlink(pathname,callback=&PL_sv_undef)
566	SV * pathname	675	SV * pathname
567	SV * callback	676	SV * callback
		677	ALIAS:
		678	aio_unlink = REQ_UNLINK
		679	aio_rmdir = REQ_RMDIR
568	CODE:	680	CODE:
569	{	681	{
570	aio_req req;	682	dREQ;
571		683
572	Newz (0, req, 1, aio_cb);	684	req->type = ix;
		685	req->data = newSVsv (pathname);
		686	req->dataptr = SvPVbyte_nolen (req->data);
573		687
574	if (!req)	688	send_req (req);
575	croak ("out of memory during aio_req allocation");	689	}
		690
		691	void
		692	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		693	SV * oldpath
		694	SV * newpath
		695	SV * callback
		696	CODE:
		697	{
		698	dREQ;
576		699
577	req->type = REQ_UNLINK;	700	req->type = REQ_SYMLINK;
		701	req->fh = newSVsv (oldpath);
		702	req->data2ptr = SvPVbyte_nolen (req->fh);
578	req->data = newSVsv (pathname);	703	req->data = newSVsv (newpath);
579	req->dataptr = SvPV_nolen (req->data);	704	req->dataptr = SvPVbyte_nolen (req->data);
580	req->callback = SvREFCNT_inc (callback);
581		705
582	send_req (req);	706	send_req (req);
583	}	707	}
584		708
585	void	709	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.10 by root, Wed Jul 13 00:13:09 2005 UTC vs. Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.10 by root, Wed Jul 13 00:13:09 2005 UTC vs.
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC