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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.8 by root, Mon Jul 11 02:53:59 2005 UTC vs.
Revision 1.23 by root, Tue Aug 16 23:33:34 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
		8	#include "autoconf/config.h"
		9
5	#include <sys/types.h>	10	#include <sys/types.h>
6	#include <sys/stat.h>	11	#include <sys/stat.h>
		12
7	#include <unistd.h>	13	#include <unistd.h>
8	#include <fcntl.h>	14	#include <fcntl.h>
9	#include <signal.h>	15	#include <signal.h>
10	#include <sched.h>	16	#include <sched.h>
11	#include <endian.h>
12		17
13	#include <pthread.h>	18	#include <pthread.h>
14	#include <sys/syscall.h>
15		19
16	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 ;) */
17	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 ;) */
18	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
19		23
25		29
26	enum {	30	enum {
27	REQ_QUIT,	31	REQ_QUIT,
28	REQ_OPEN, REQ_CLOSE,	32	REQ_OPEN, REQ_CLOSE,
29	REQ_READ, REQ_WRITE, REQ_READAHEAD,	33	REQ_READ, REQ_WRITE, REQ_READAHEAD,
30	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
31	REQ_FSYNC, REQ_FDATASYNC,	35	REQ_FSYNC, REQ_FDATASYNC,
		36	REQ_UNLINK, REQ_RMDIR,
		37	REQ_SYMLINK,
32	};	38	};
33		39
34	typedef struct aio_cb {	40	typedef struct aio_cb {
35	struct aio_cb *volatile next;	41	struct aio_cb *volatile next;
36		42
…		…
40	off_t offset;	46	off_t offset;
41	size_t length;	47	size_t length;
42	ssize_t result;	48	ssize_t result;
43	mode_t mode; /* open */	49	mode_t mode; /* open */
44	int errorno;	50	int errorno;
45	SV data, callback;	51	SV data, callback, *fh;
46	void *dataptr;	52	void dataptr, data2ptr;
47	STRLEN dataoffset;	53	STRLEN dataoffset;
48		54
49	Stat_t *statdata;	55	Stat_t *statdata;
50	} aio_cb;	56	} aio_cb;
51		57
52	typedef aio_cb *aio_req;	58	typedef aio_cb *aio_req;
53		59
54	static int started;	60	static int started;
55	static int nreqs;	61	static volatile int nreqs;
56	static int max_outstanding = 1<<30;	62	static int max_outstanding = 1<<30;
57	static int respipe [2];	63	static int respipe [2];
58		64
59	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
60	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;
61	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	68	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
62		69
63	static volatile aio_req reqs, reqe; /* queue start, queue end */	70	static volatile aio_req reqs, reqe; /* queue start, queue end */
64	static volatile aio_req ress, rese; /* queue start, queue end */	71	static volatile aio_req ress, rese; /* queue start, queue end */
65		72
66	static void	73	static void
67	poll_wait ()	74	poll_wait ()
68	{	75	{
69	if (!nreqs)	76	if (nreqs && !ress)
70	return;	77	{
71
72	fd_set rfd;	78	fd_set rfd;
73	FD_ZERO(&rfd);	79	FD_ZERO(&rfd);
74	FD_SET(respipe [0], &rfd);	80	FD_SET(respipe [0], &rfd);
75		81
76	select (respipe [0] + 1, &rfd, 0, 0, 0);	82	select (respipe [0] + 1, &rfd, 0, 0, 0);
		83	}
77	}	84	}
78		85
79	static int	86	static int
80	poll_cb ()	87	poll_cb ()
81	{	88	{
82	dSP;	89	dSP;
83	int count = 0;	90	int count = 0;
84	aio_req req;	91	aio_req req, prv;
85		92
		93	pthread_mutex_lock (&reslock);
		94
86	{	95	{
87	/* read and signals sent by the worker threads */	96	/* read any signals sent by the worker threads */
88	char buf [32];	97	char buf [32];
89	while (read (respipe [0], buf, 32) > 0)	98	while (read (respipe [0], buf, 32) == 32)
90	;	99	;
91	}	100	}
92		101
93	for (;;)	102	req = ress;
		103	ress = rese = 0;
		104
		105	pthread_mutex_unlock (&reslock);
		106
		107	while (req)
94	{	108	{
95	pthread_mutex_lock (&reslock);
96
97	req = ress;
98
99	if (ress)
100	{
101	ress = ress->next;
102	if (!ress) rese = 0;
103	}
104
105	pthread_mutex_unlock (&reslock);
106
107	if (!req)
108	break;
109
110	nreqs--;	109	nreqs--;
111		110
112	if (req->type == REQ_QUIT)	111	if (req->type == REQ_QUIT)
113	started--;	112	started--;
114	else	113	else
…		…
121	+ req->result > 0 ? req->result : 0);	120	+ req->result > 0 ? req->result : 0);
122		121
123	if (req->data)	122	if (req->data)
124	SvREFCNT_dec (req->data);	123	SvREFCNT_dec (req->data);
125		124
		125	if (req->fh)
		126	SvREFCNT_dec (req->fh);
		127
126	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	128	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
127	{	129	{
128	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	130	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129	PL_laststatval = req->result;	131	PL_laststatval = req->result;
130	PL_statcache = *(req->statdata);	132	PL_statcache = *(req->statdata);
131		133
132	Safefree (req->statdata);	134	Safefree (req->statdata);
133	}	135	}
134		136
		137	ENTER;
135	PUSHMARK (SP);	138	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	139	XPUSHs (sv_2mortal (newSViv (req->result)));
137		140
138	if (req->type == REQ_OPEN)	141	if (req->type == REQ_OPEN)
139	{	142	{
…		…
142		145
143	PUTBACK;	146	PUTBACK;
144	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	147	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
145	SPAGAIN;	148	SPAGAIN;
146		149
147	fh = POPs;	150	fh = SvREFCNT_inc (POPs);
148		151
149	PUSHMARK (SP);	152	PUSHMARK (SP);
150	XPUSHs (fh);	153	XPUSHs (sv_2mortal (fh));
151	}	154	}
152		155
153	if (SvOK (req->callback))	156	if (SvOK (req->callback))
154	{	157	{
155	PUTBACK;	158	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	159	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	160	SPAGAIN;
158	}	161	}
		162
		163	LEAVE;
159		164
160	if (req->callback)	165	if (req->callback)
161	SvREFCNT_dec (req->callback);	166	SvREFCNT_dec (req->callback);
162		167
163	errno = errorno;	168	errno = errorno;
164	count++;	169	count++;
165	}	170	}
166		171
		172	prv = req;
		173	req = req->next;
167	Safefree (req);	174	Safefree (prv);
		175
		176	/* TODO: croak on errors? */
168	}	177	}
169		178
170	return count;	179	return count;
171	}	180	}
172		181
…		…
227	req->type = REQ_QUIT;	236	req->type = REQ_QUIT;
228		237
229	send_req (req);	238	send_req (req);
230	}	239	}
231		240
232	static void
233	read_write (int dowrite, int fd, off_t offset, size_t length,
234	SV data, STRLEN dataoffset, SV callback)
235	{
236	aio_req req;
237	STRLEN svlen;
238	char *svptr = SvPV (data, svlen);
239		241
240	SvUPGRADE (data, SVt_PV);	242	static void min_parallel (int nthreads)
241	SvPOK_on (data);	243	{
		244	while (nthreads > started)
		245	start_thread ();
		246	}
242		247
243	if (dataoffset < 0)	248	static void max_parallel (int nthreads)
244	dataoffset += svlen;	249	{
		250	int cur = started;
		251	while (cur > nthreads)
		252	{
		253	end_thread ();
		254	cur--;
		255	}
245		256
246	if (dataoffset < 0 \|\| dataoffset > svlen)	257	while (started > nthreads)
247	croak ("data offset outside of string");
248
249	if (dowrite)
250	{	258	{
251	/* write: check length and adjust. */	259	poll_wait ();
252	if (length < 0 \|\| length + dataoffset > svlen)	260	poll_cb ();
253	length = svlen - dataoffset;
254	}	261	}
255	else	262	}
		263
		264	static int fork_started;
		265
		266	static void atfork_prepare (void)
		267	{
		268	pthread_mutex_lock (&frklock);
		269
		270	fork_started = started;
		271
		272	for (;;) {
		273	while (nreqs)
		274	{
		275	poll_wait ();
		276	poll_cb ();
		277	}
		278
		279	max_parallel (0);
		280
		281	pthread_mutex_lock (&reqlock);
		282
		283	if (!nreqs && !started)
		284	break;
		285
		286	pthread_mutex_unlock (&reqlock);
		287
		288	min_parallel (fork_started);
		289	}
		290
		291	pthread_mutex_lock (&reslock);
		292
		293	assert (!started);
		294	assert (!nreqs);
		295	assert (!reqs && !reqe);
		296	assert (!ress && !rese);
		297	}
		298
		299	static void atfork_parent (void)
		300	{
		301	pthread_mutex_unlock (&reslock);
		302	min_parallel (fork_started);
		303	pthread_mutex_unlock (&reqlock);
		304	pthread_mutex_unlock (&frklock);
		305	}
		306
		307	static void atfork_child (void)
		308	{
		309	reqs = reqe = 0;
		310
		311	atfork_parent ();
		312	}
		313
		314	/*****************************************************************************/
		315	/* work around various missing functions */
		316
		317	#if !HAVE_PREADWRITE
		318	# define pread aio_pread
		319	# define pwrite aio_pwrite
		320
		321	/*
		322	* make our pread/pwrite safe against themselves, but not against
		323	* normal read/write by using a mutex. slows down execution a lot,
		324	* but that's your problem, not mine.
		325	*/
		326	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		327
		328	static ssize_t
		329	pread (int fd, void *buf, size_t count, off_t offset)
		330	{
		331	ssize_t res;
		332	off_t ooffset;
		333
		334	pthread_mutex_lock (&iolock);
		335	ooffset = lseek (fd, 0, SEEK_CUR);
		336	lseek (fd, offset, SEEK_SET);
		337	res = read (fd, buf, count);
		338	lseek (fd, ooffset, SEEK_SET);
		339	pthread_mutex_unlock (&iolock);
		340
		341	return res;
		342	}
		343
		344	static ssize_t
		345	pwrite (int fd, void *buf, size_t count, off_t offset)
		346	{
		347	ssize_t res;
		348	off_t ooffset;
		349
		350	pthread_mutex_lock (&iolock);
		351	ooffset = lseek (fd, 0, SEEK_CUR);
		352	lseek (fd, offset, SEEK_SET);
		353	res = write (fd, buf, count);
		354	lseek (fd, offset, SEEK_SET);
		355	pthread_mutex_unlock (&iolock);
		356
		357	return res;
		358	}
		359	#endif
		360
		361	#if !HAVE_FDATASYNC
		362	# define fdatasync fsync
		363	#endif
		364
		365	#if !HAVE_READAHEAD
		366	# define readahead aio_readahead
		367
		368	static char readahead_buf[4096];
		369
		370	static ssize_t
		371	readahead (int fd, off_t offset, size_t count)
		372	{
		373	while (count > 0)
256	{	374	{
257	/* read: grow scalar as necessary */	375	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
258	svptr = SvGROW (data, length + dataoffset);	376
		377	pread (fd, readahead_buf, len, offset);
		378	offset += len;
		379	count -= len;
259	}	380	}
260		381
261	if (length < 0)	382	errno = 0;
262	croak ("length must not be negative");
263
264	Newz (0, req, 1, aio_cb);
265
266	if (!req)
267	croak ("out of memory during aio_req allocation");
268
269	req->type = dowrite ? REQ_WRITE : REQ_READ;
270	req->fd = fd;
271	req->offset = offset;
272	req->length = length;
273	req->data = SvREFCNT_inc (data);
274	req->dataptr = (char *)svptr + dataoffset;
275	req->callback = SvREFCNT_inc (callback);
276
277	send_req (req);
278	}	383	}
		384	#endif
		385
		386	/*****************************************************************************/
279		387
280	static void *	388	static void *
281	aio_proc (void *thr_arg)	389	aio_proc (void *thr_arg)
282	{	390	{
283	aio_req req;	391	aio_req req;
…		…
309		417
310	type = req->type;	418	type = req->type;
311		419
312	switch (type)	420	switch (type)
313	{	421	{
314	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;	422	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
315	case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;	423	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
316	#if SYS_readahead	424
317	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	425	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
318	#else
319	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
320	#endif
321		426
322	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	427	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
323	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	428	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
324	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	429	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
325		430
326	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	431	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
327	case REQ_CLOSE: req->result = close (req->fd); break;	432	case REQ_CLOSE: req->result = close (req->fd); break;
328	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	433	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		434	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		435	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
329		436
		437	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
330	case REQ_FSYNC: req->result = fsync (req->fd); break;	438	case REQ_FSYNC: req->result = fsync (req->fd); break;
331	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
332		439
333	case REQ_QUIT:	440	case REQ_QUIT:
334	break;	441	break;
335		442
336	default:	443	default:
…		…
362	while (type != REQ_QUIT);	469	while (type != REQ_QUIT);
363		470
364	return 0;	471	return 0;
365	}	472	}
366		473
		474	#define dREQ \
		475	aio_req req; \
		476	\
		477	if (SvOK (callback) && !SvROK (callback)) \
		478	croak ("clalback must be undef or of reference type"); \
		479	\
		480	Newz (0, req, 1, aio_cb); \
		481	if (!req) \
		482	croak ("out of memory during aio_req allocation"); \
		483	\
		484	req->callback = SvREFCNT_inc (callback);
		485
367	MODULE = IO::AIO PACKAGE = IO::AIO	486	MODULE = IO::AIO PACKAGE = IO::AIO
368		487
369	PROTOTYPES: ENABLE	488	PROTOTYPES: ENABLE
370		489
371	BOOT:	490	BOOT:
…		…
376	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	495	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
377	croak ("cannot set result pipe to nonblocking mode");	496	croak ("cannot set result pipe to nonblocking mode");
378		497
379	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	498	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
380	croak ("cannot set result pipe to nonblocking mode");	499	croak ("cannot set result pipe to nonblocking mode");
		500
		501	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
381	}	502	}
382		503
383	void	504	void
384	min_parallel(nthreads)	505	min_parallel(nthreads)
385	int nthreads	506	int nthreads
386	PROTOTYPE: $	507	PROTOTYPE: $
387	CODE:
388	while (nthreads > started)
389	start_thread ();
390		508
391	void	509	void
392	max_parallel(nthreads)	510	max_parallel(nthreads)
393	int nthreads	511	int nthreads
394	PROTOTYPE: $	512	PROTOTYPE: $
395	CODE:
396	{
397	int cur = started;
398	while (cur > nthreads)
399	{
400	end_thread ();
401	cur--;
402	}
403
404	while (started > nthreads)
405	{
406	poll_wait ();
407	poll_cb ();
408	}
409	}
410		513
411	int	514	int
412	max_outstanding(nreqs)	515	max_outstanding(nreqs)
413	int nreqs	516	int nreqs
414	PROTOTYPE: $	517	PROTOTYPE: $
…		…
423	int mode	526	int mode
424	SV * callback	527	SV * callback
425	PROTOTYPE: $$$;$	528	PROTOTYPE: $$$;$
426	CODE:	529	CODE:
427	{	530	{
428	aio_req req;	531	dREQ;
429
430	Newz (0, req, 1, aio_cb);
431
432	if (!req)
433	croak ("out of memory during aio_req allocation");
434		532
435	req->type = REQ_OPEN;	533	req->type = REQ_OPEN;
436	req->data = newSVsv (pathname);	534	req->data = newSVsv (pathname);
437	req->dataptr = SvPV_nolen (req->data);	535	req->dataptr = SvPVbyte_nolen (req->data);
438	req->fd = flags;	536	req->fd = flags;
439	req->mode = mode;	537	req->mode = mode;
440	req->callback = SvREFCNT_inc (callback);
441		538
442	send_req (req);	539	send_req (req);
443	}	540	}
444		541
445	void	542	void
446	aio_close(fh,callback=&PL_sv_undef)	543	aio_close(fh,callback=&PL_sv_undef)
447	InputStream fh	544	SV * fh
448	SV * callback	545	SV * callback
449	PROTOTYPE: $;$	546	PROTOTYPE: $;$
450	ALIAS:	547	ALIAS:
451	aio_close = REQ_CLOSE	548	aio_close = REQ_CLOSE
452	aio_fsync = REQ_FSYNC	549	aio_fsync = REQ_FSYNC
453	aio_fdatasync = REQ_FDATASYNC	550	aio_fdatasync = REQ_FDATASYNC
454	CODE:	551	CODE:
455	{	552	{
456	aio_req req;	553	dREQ;
457
458	Newz (0, req, 1, aio_cb);
459
460	if (!req)
461	croak ("out of memory during aio_req allocation");
462		554
463	req->type = ix;	555	req->type = ix;
		556	req->fh = newSVsv (fh);
464	req->fd = PerlIO_fileno (fh);	557	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
465	req->callback = SvREFCNT_inc (callback);
466		558
467	send_req (req);	559	send_req (req);
468	}	560	}
469		561
470	void	562	void
471	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	563	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
472	InputStream fh	564	SV * fh
473	UV offset	565	UV offset
474	IV length	566	IV length
475	SV * data	567	SV * data
476	IV dataoffset	568	IV dataoffset
477	SV * callback	569	SV * callback
		570	ALIAS:
		571	aio_read = REQ_READ
		572	aio_write = REQ_WRITE
478	PROTOTYPE: $$$$$;$	573	PROTOTYPE: $$$$$;$
479	CODE:	574	CODE:
480	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	575	{
		576	aio_req req;
		577	STRLEN svlen;
		578	char *svptr = SvPVbyte (data, svlen);
481		579
482	void	580	SvUPGRADE (data, SVt_PV);
483	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	581	SvPOK_on (data);
484	OutputStream fh	582
485	UV offset	583	if (dataoffset < 0)
486	IV length	584	dataoffset += svlen;
487	SV * data	585
488	IV dataoffset	586	if (dataoffset < 0 \|\| dataoffset > svlen)
489	SV * callback	587	croak ("data offset outside of string");
490	PROTOTYPE: $$$$$;$	588
491	CODE:	589	if (ix == REQ_WRITE)
492	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	590	{
		591	/* write: check length and adjust. */
		592	if (length < 0 \|\| length + dataoffset > svlen)
		593	length = svlen - dataoffset;
		594	}
		595	else
		596	{
		597	/* read: grow scalar as necessary */
		598	svptr = SvGROW (data, length + dataoffset);
		599	}
		600
		601	if (length < 0)
		602	croak ("length must not be negative");
		603
		604	{
		605	dREQ;
		606
		607	req->type = ix;
		608	req->fh = newSVsv (fh);
		609	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		610	: IoOFP (sv_2io (fh)));
		611	req->offset = offset;
		612	req->length = length;
		613	req->data = SvREFCNT_inc (data);
		614	req->dataptr = (char *)svptr + dataoffset;
		615	req->callback = SvREFCNT_inc (callback);
		616
		617	send_req (req);
		618	}
		619	}
493		620
494	void	621	void
495	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	622	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
496	InputStream fh	623	SV * fh
497	UV offset	624	UV offset
498	IV length	625	IV length
499	SV * callback	626	SV * callback
500	PROTOTYPE: $$$;$	627	PROTOTYPE: $$$;$
501	CODE:	628	CODE:
502	{	629	{
503	aio_req req;	630	dREQ;
504
505	if (length < 0)
506	croak ("length must not be negative");
507
508	Newz (0, req, 1, aio_cb);
509
510	if (!req)
511	croak ("out of memory during aio_req allocation");
512		631
513	req->type = REQ_READAHEAD;	632	req->type = REQ_READAHEAD;
		633	req->fh = newSVsv (fh);
514	req->fd = PerlIO_fileno (fh);	634	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
515	req->offset = offset;	635	req->offset = offset;
516	req->length = length;	636	req->length = length;
517	req->callback = SvREFCNT_inc (callback);
518		637
519	send_req (req);	638	send_req (req);
520	}	639	}
521		640
522	void	641	void
…		…
526	ALIAS:	645	ALIAS:
527	aio_stat = REQ_STAT	646	aio_stat = REQ_STAT
528	aio_lstat = REQ_LSTAT	647	aio_lstat = REQ_LSTAT
529	CODE:	648	CODE:
530	{	649	{
531	aio_req req;	650	dREQ;
532
533	Newz (0, req, 1, aio_cb);
534
535	if (!req)
536	croak ("out of memory during aio_req allocation");
537		651
538	New (0, req->statdata, 1, Stat_t);	652	New (0, req->statdata, 1, Stat_t);
539
540	if (!req->statdata)	653	if (!req->statdata)
541	croak ("out of memory during aio_req->statdata allocation");	654	croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
542		655
543	if (SvPOK (fh_or_path))	656	if (SvPOK (fh_or_path))
544	{	657	{
545	req->type = ix;	658	req->type = ix;
546	req->data = newSVsv (fh_or_path);	659	req->data = newSVsv (fh_or_path);
547	req->dataptr = SvPV_nolen (req->data);	660	req->dataptr = SvPVbyte_nolen (req->data);
548	}	661	}
549	else	662	else
550	{	663	{
551	req->type = REQ_FSTAT;	664	req->type = REQ_FSTAT;
		665	req->fh = newSVsv (fh_or_path);
552	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	666	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
553	}	667	}
554
555	req->callback = SvREFCNT_inc (callback);
556		668
557	send_req (req);	669	send_req (req);
558	}	670	}
559		671
560	void	672	void
561	aio_unlink(pathname,callback=&PL_sv_undef)	673	aio_unlink(pathname,callback=&PL_sv_undef)
562	SV * pathname	674	SV * pathname
563	SV * callback	675	SV * callback
		676	ALIAS:
		677	aio_unlink = REQ_UNLINK
		678	aio_rmdir = REQ_RMDIR
564	CODE:	679	CODE:
565	{	680	{
566	aio_req req;	681	dREQ;
567		682
568	Newz (0, req, 1, aio_cb);	683	req->type = ix;
		684	req->data = newSVsv (pathname);
		685	req->dataptr = SvPVbyte_nolen (req->data);
569		686
570	if (!req)	687	send_req (req);
571	croak ("out of memory during aio_req allocation");	688	}
		689
		690	void
		691	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		692	SV * oldpath
		693	SV * newpath
		694	SV * callback
		695	CODE:
		696	{
		697	dREQ;
572		698
573	req->type = REQ_UNLINK;	699	req->type = REQ_SYMLINK;
		700	req->fh = newSVsv (oldpath);
		701	req->data2ptr = SvPVbyte_nolen (req->fh);
574	req->data = newSVsv (pathname);	702	req->data = newSVsv (newpath);
575	req->dataptr = SvPV_nolen (req->data);	703	req->dataptr = SvPVbyte_nolen (req->data);
576	req->callback = SvREFCNT_inc (callback);
577		704
578	send_req (req);	705	send_req (req);
579	}	706	}
580		707
581	void	708	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.8 by root, Mon Jul 11 02:53:59 2005 UTC vs. Revision 1.23 by root, Tue Aug 16 23:33:34 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.8 by root, Mon Jul 11 02:53:59 2005 UTC vs.
Revision 1.23 by root, Tue Aug 16 23:33:34 2005 UTC