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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.9 by root, Tue Jul 12 11:02:54 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
		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		17
12	#include <pthread.h>	18	#include <pthread.h>
13	#include <sys/syscall.h>
14		19
15	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 ;) */
16	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 ;) */
17	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 ;) */
18		23
24		29
25	enum {	30	enum {
26	REQ_QUIT,	31	REQ_QUIT,
27	REQ_OPEN, REQ_CLOSE,	32	REQ_OPEN, REQ_CLOSE,
28	REQ_READ, REQ_WRITE, REQ_READAHEAD,	33	REQ_READ, REQ_WRITE, REQ_READAHEAD,
29	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
30	REQ_FSYNC, REQ_FDATASYNC,	35	REQ_FSYNC, REQ_FDATASYNC,
		36	REQ_UNLINK, REQ_RMDIR,
		37	REQ_SYMLINK,
31	};	38	};
32		39
33	typedef struct aio_cb {	40	typedef struct aio_cb {
34	struct aio_cb *volatile next;	41	struct aio_cb *volatile next;
35		42
…		…
39	off_t offset;	46	off_t offset;
40	size_t length;	47	size_t length;
41	ssize_t result;	48	ssize_t result;
42	mode_t mode; /* open */	49	mode_t mode; /* open */
43	int errorno;	50	int errorno;
44	SV data, callback;	51	SV data, callback, *fh;
45	void *dataptr;	52	void dataptr, data2ptr;
46	STRLEN dataoffset;	53	STRLEN dataoffset;
47		54
48	Stat_t *statdata;	55	Stat_t *statdata;
49	} aio_cb;	56	} aio_cb;
50		57
51	typedef aio_cb *aio_req;	58	typedef aio_cb *aio_req;
52		59
53	static int started;	60	static int started;
54	static int nreqs;	61	static volatile int nreqs;
55	static int max_outstanding = 1<<30;	62	static int max_outstanding = 1<<30;
56	static int respipe [2];	63	static int respipe [2];
57		64
58	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
59	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;
60	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	68	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
61		69
62	static volatile aio_req reqs, reqe; /* queue start, queue end */	70	static volatile aio_req reqs, reqe; /* queue start, queue end */
63	static volatile aio_req ress, rese; /* queue start, queue end */	71	static volatile aio_req ress, rese; /* queue start, queue end */
64		72
65	static void	73	static void
66	poll_wait ()	74	poll_wait ()
67	{	75	{
68	if (!nreqs)	76	if (nreqs && !ress)
69	return;	77	{
70
71	fd_set rfd;	78	fd_set rfd;
72	FD_ZERO(&rfd);	79	FD_ZERO(&rfd);
73	FD_SET(respipe [0], &rfd);	80	FD_SET(respipe [0], &rfd);
74		81
75	select (respipe [0] + 1, &rfd, 0, 0, 0);	82	select (respipe [0] + 1, &rfd, 0, 0, 0);
		83	}
76	}	84	}
77		85
78	static int	86	static int
79	poll_cb ()	87	poll_cb ()
80	{	88	{
81	dSP;	89	dSP;
82	int count = 0;	90	int count = 0;
		91	int do_croak = 0;
83	aio_req req;	92	aio_req req, prv;
84		93
		94	pthread_mutex_lock (&reslock);
		95
85	{	96	{
86	/* read and signals sent by the worker threads */	97	/* read any signals sent by the worker threads */
87	char buf [32];	98	char buf [32];
88	while (read (respipe [0], buf, 32) > 0)	99	while (read (respipe [0], buf, 32) == 32)
89	;	100	;
90	}	101	}
91		102
92	for (;;)	103	req = ress;
		104	ress = rese = 0;
		105
		106	pthread_mutex_unlock (&reslock);
		107
		108	while (req)
93	{	109	{
94	pthread_mutex_lock (&reslock);
95
96	req = ress;
97
98	if (ress)
99	{
100	ress = ress->next;
101	if (!ress) rese = 0;
102	}
103
104	pthread_mutex_unlock (&reslock);
105
106	if (!req)
107	break;
108
109	nreqs--;	110	nreqs--;
110		111
111	if (req->type == REQ_QUIT)	112	if (req->type == REQ_QUIT)
112	started--;	113	started--;
113	else	114	else
…		…
120	+ req->result > 0 ? req->result : 0);	121	+ req->result > 0 ? req->result : 0);
121		122
122	if (req->data)	123	if (req->data)
123	SvREFCNT_dec (req->data);	124	SvREFCNT_dec (req->data);
124		125
		126	if (req->fh)
		127	SvREFCNT_dec (req->fh);
		128
125	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)
126	{	130	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	131	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	132	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	133	PL_statcache = *(req->statdata);
130		134
131	Safefree (req->statdata);	135	Safefree (req->statdata);
132	}	136	}
133		137
		138	ENTER;
134	PUSHMARK (SP);	139	PUSHMARK (SP);
135	XPUSHs (sv_2mortal (newSViv (req->result)));	140	XPUSHs (sv_2mortal (newSViv (req->result)));
136		141
137	if (req->type == REQ_OPEN)	142	if (req->type == REQ_OPEN)
138	{	143	{
…		…
141		146
142	PUTBACK;	147	PUTBACK;
143	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	148	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
144	SPAGAIN;	149	SPAGAIN;
145		150
146	fh = POPs;	151	fh = SvREFCNT_inc (POPs);
147		152
148	PUSHMARK (SP);	153	PUSHMARK (SP);
149	XPUSHs (fh);	154	XPUSHs (sv_2mortal (fh));
150	}	155	}
151		156
152	if (SvOK (req->callback))	157	if (SvOK (req->callback))
153	{	158	{
154	PUTBACK;	159	PUTBACK;
155	call_sv (req->callback, G_VOID \| G_EVAL);	160	call_sv (req->callback, G_VOID \| G_EVAL);
156	SPAGAIN;	161	SPAGAIN;
157	}	162	}
		163
		164	do_croak = SvTRUE (ERRSV);
		165
		166	LEAVE;
158		167
159	if (req->callback)	168	if (req->callback)
160	SvREFCNT_dec (req->callback);	169	SvREFCNT_dec (req->callback);
161		170
162	errno = errorno;	171	errno = errorno;
163	count++;	172	count++;
164	}	173	}
165		174
		175	prv = req;
		176	req = req->next;
166	Safefree (req);	177	Safefree (prv);
		178
		179	if (do_croak)
		180	croak (0);
167	}	181	}
168		182
169	return count;	183	return count;
170	}	184	}
171		185
…		…
226	req->type = REQ_QUIT;	240	req->type = REQ_QUIT;
227		241
228	send_req (req);	242	send_req (req);
229	}	243	}
230		244
231	static void
232	read_write (int dowrite, int fd, off_t offset, size_t length,
233	SV data, STRLEN dataoffset, SV callback)
234	{
235	aio_req req;
236	STRLEN svlen;
237	char *svptr = SvPV (data, svlen);
238		245
239	SvUPGRADE (data, SVt_PV);	246	static void min_parallel (int nthreads)
240	SvPOK_on (data);	247	{
		248	while (nthreads > started)
		249	start_thread ();
		250	}
241		251
242	if (dataoffset < 0)	252	static void max_parallel (int nthreads)
243	dataoffset += svlen;	253	{
		254	int cur = started;
		255	while (cur > nthreads)
		256	{
		257	end_thread ();
		258	cur--;
		259	}
244		260
245	if (dataoffset < 0 \|\| dataoffset > svlen)	261	while (started > nthreads)
246	croak ("data offset outside of string");
247
248	if (dowrite)
249	{	262	{
250	/* write: check length and adjust. */	263	poll_wait ();
251	if (length < 0 \|\| length + dataoffset > svlen)	264	poll_cb ();
252	length = svlen - dataoffset;
253	}	265	}
254	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)
255	{	375	{
256	/* read: grow scalar as necessary */	376	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
257	svptr = SvGROW (data, length + dataoffset);	377
		378	pread (fd, readahead_buf, len, offset);
		379	offset += len;
		380	count -= len;
258	}	381	}
259		382
260	if (length < 0)	383	errno = 0;
261	croak ("length must not be negative");
262
263	Newz (0, req, 1, aio_cb);
264
265	if (!req)
266	croak ("out of memory during aio_req allocation");
267
268	req->type = dowrite ? REQ_WRITE : REQ_READ;
269	req->fd = fd;
270	req->offset = offset;
271	req->length = length;
272	req->data = SvREFCNT_inc (data);
273	req->dataptr = (char *)svptr + dataoffset;
274	req->callback = SvREFCNT_inc (callback);
275
276	send_req (req);
277	}	384	}
		385	#endif
		386
		387	/*****************************************************************************/
278		388
279	static void *	389	static void *
280	aio_proc (void *thr_arg)	390	aio_proc (void *thr_arg)
281	{	391	{
282	aio_req req;	392	aio_req req;
…		…
308		418
309	type = req->type;	419	type = req->type;
310		420
311	switch (type)	421	switch (type)
312	{	422	{
313	case REQ_READ: req->result = pread64 (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;
314	case REQ_WRITE: req->result = pwrite64 (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;
315	#if SYS_readahead	425
316	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;
317	#else
318	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
319	#endif
320		427
321	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	428	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
322	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	429	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
323	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	430	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
324		431
325	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;
326	case REQ_CLOSE: req->result = close (req->fd); break;	433	case REQ_CLOSE: req->result = close (req->fd); break;
327	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;
328		437
		438	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329	case REQ_FSYNC: req->result = fsync (req->fd); break;	439	case REQ_FSYNC: req->result = fsync (req->fd); break;
330	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
331		440
332	case REQ_QUIT:	441	case REQ_QUIT:
333	break;	442	break;
334		443
335	default:	444	default:
…		…
361	while (type != REQ_QUIT);	470	while (type != REQ_QUIT);
362		471
363	return 0;	472	return 0;
364	}	473	}
365		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
366	MODULE = IO::AIO PACKAGE = IO::AIO	487	MODULE = IO::AIO PACKAGE = IO::AIO
367		488
368	PROTOTYPES: ENABLE	489	PROTOTYPES: ENABLE
369		490
370	BOOT:	491	BOOT:
…		…
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	496	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
376	croak ("cannot set result pipe to nonblocking mode");	497	croak ("cannot set result pipe to nonblocking mode");
377		498
378	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	499	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
379	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);
380	}	503	}
381		504
382	void	505	void
383	min_parallel(nthreads)	506	min_parallel(nthreads)
384	int nthreads	507	int nthreads
385	PROTOTYPE: $	508	PROTOTYPE: $
386	CODE:
387	while (nthreads > started)
388	start_thread ();
389		509
390	void	510	void
391	max_parallel(nthreads)	511	max_parallel(nthreads)
392	int nthreads	512	int nthreads
393	PROTOTYPE: $	513	PROTOTYPE: $
394	CODE:
395	{
396	int cur = started;
397	while (cur > nthreads)
398	{
399	end_thread ();
400	cur--;
401	}
402
403	while (started > nthreads)
404	{
405	poll_wait ();
406	poll_cb ();
407	}
408	}
409		514
410	int	515	int
411	max_outstanding(nreqs)	516	max_outstanding(nreqs)
412	int nreqs	517	int nreqs
413	PROTOTYPE: $	518	PROTOTYPE: $
…		…
422	int mode	527	int mode
423	SV * callback	528	SV * callback
424	PROTOTYPE: $$$;$	529	PROTOTYPE: $$$;$
425	CODE:	530	CODE:
426	{	531	{
427	aio_req req;	532	dREQ;
428
429	Newz (0, req, 1, aio_cb);
430
431	if (!req)
432	croak ("out of memory during aio_req allocation");
433		533
434	req->type = REQ_OPEN;	534	req->type = REQ_OPEN;
435	req->data = newSVsv (pathname);	535	req->data = newSVsv (pathname);
436	req->dataptr = SvPV_nolen (req->data);	536	req->dataptr = SvPVbyte_nolen (req->data);
437	req->fd = flags;	537	req->fd = flags;
438	req->mode = mode;	538	req->mode = mode;
439	req->callback = SvREFCNT_inc (callback);
440		539
441	send_req (req);	540	send_req (req);
442	}	541	}
443		542
444	void	543	void
445	aio_close(fh,callback=&PL_sv_undef)	544	aio_close(fh,callback=&PL_sv_undef)
446	InputStream fh	545	SV * fh
447	SV * callback	546	SV * callback
448	PROTOTYPE: $;$	547	PROTOTYPE: $;$
449	ALIAS:	548	ALIAS:
450	aio_close = REQ_CLOSE	549	aio_close = REQ_CLOSE
451	aio_fsync = REQ_FSYNC	550	aio_fsync = REQ_FSYNC
452	aio_fdatasync = REQ_FDATASYNC	551	aio_fdatasync = REQ_FDATASYNC
453	CODE:	552	CODE:
454	{	553	{
455	aio_req req;	554	dREQ;
456
457	Newz (0, req, 1, aio_cb);
458
459	if (!req)
460	croak ("out of memory during aio_req allocation");
461		555
462	req->type = ix;	556	req->type = ix;
		557	req->fh = newSVsv (fh);
463	req->fd = PerlIO_fileno (fh);	558	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
464	req->callback = SvREFCNT_inc (callback);
465		559
466	send_req (req);	560	send_req (req);
467	}	561	}
468		562
469	void	563	void
470	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	564	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
471	InputStream fh	565	SV * fh
472	UV offset	566	UV offset
473	IV length	567	IV length
474	SV * data	568	SV * data
475	IV dataoffset	569	IV dataoffset
476	SV * callback	570	SV * callback
		571	ALIAS:
		572	aio_read = REQ_READ
		573	aio_write = REQ_WRITE
477	PROTOTYPE: $$$$$;$	574	PROTOTYPE: $$$$$;$
478	CODE:	575	CODE:
479	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	576	{
		577	aio_req req;
		578	STRLEN svlen;
		579	char *svptr = SvPVbyte (data, svlen);
480		580
481	void	581	SvUPGRADE (data, SVt_PV);
482	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	582	SvPOK_on (data);
483	OutputStream fh	583
484	UV offset	584	if (dataoffset < 0)
485	IV length	585	dataoffset += svlen;
486	SV * data	586
487	IV dataoffset	587	if (dataoffset < 0 \|\| dataoffset > svlen)
488	SV * callback	588	croak ("data offset outside of string");
489	PROTOTYPE: $$$$$;$	589
490	CODE:	590	if (ix == REQ_WRITE)
491	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	591	{
		592	/* write: check length and adjust. */
		593	if (length < 0 \|\| length + dataoffset > svlen)
		594	length = svlen - dataoffset;
		595	}
		596	else
		597	{
		598	/* read: grow scalar as necessary */
		599	svptr = SvGROW (data, length + dataoffset);
		600	}
		601
		602	if (length < 0)
		603	croak ("length must not be negative");
		604
		605	{
		606	dREQ;
		607
		608	req->type = ix;
		609	req->fh = newSVsv (fh);
		610	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		611	: IoOFP (sv_2io (fh)));
		612	req->offset = offset;
		613	req->length = length;
		614	req->data = SvREFCNT_inc (data);
		615	req->dataptr = (char *)svptr + dataoffset;
		616	req->callback = SvREFCNT_inc (callback);
		617
		618	send_req (req);
		619	}
		620	}
492		621
493	void	622	void
494	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	623	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
495	InputStream fh	624	SV * fh
496	UV offset	625	UV offset
497	IV length	626	IV length
498	SV * callback	627	SV * callback
499	PROTOTYPE: $$$;$	628	PROTOTYPE: $$$;$
500	CODE:	629	CODE:
501	{	630	{
502	aio_req req;	631	dREQ;
503
504	if (length < 0)
505	croak ("length must not be negative");
506
507	Newz (0, req, 1, aio_cb);
508
509	if (!req)
510	croak ("out of memory during aio_req allocation");
511		632
512	req->type = REQ_READAHEAD;	633	req->type = REQ_READAHEAD;
		634	req->fh = newSVsv (fh);
513	req->fd = PerlIO_fileno (fh);	635	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
514	req->offset = offset;	636	req->offset = offset;
515	req->length = length;	637	req->length = length;
516	req->callback = SvREFCNT_inc (callback);
517		638
518	send_req (req);	639	send_req (req);
519	}	640	}
520		641
521	void	642	void
…		…
525	ALIAS:	646	ALIAS:
526	aio_stat = REQ_STAT	647	aio_stat = REQ_STAT
527	aio_lstat = REQ_LSTAT	648	aio_lstat = REQ_LSTAT
528	CODE:	649	CODE:
529	{	650	{
530	aio_req req;	651	dREQ;
531
532	Newz (0, req, 1, aio_cb);
533
534	if (!req)
535	croak ("out of memory during aio_req allocation");
536		652
537	New (0, req->statdata, 1, Stat_t);	653	New (0, req->statdata, 1, Stat_t);
538
539	if (!req->statdata)	654	if (!req->statdata)
540	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)");
541		656
542	if (SvPOK (fh_or_path))	657	if (SvPOK (fh_or_path))
543	{	658	{
544	req->type = ix;	659	req->type = ix;
545	req->data = newSVsv (fh_or_path);	660	req->data = newSVsv (fh_or_path);
546	req->dataptr = SvPV_nolen (req->data);	661	req->dataptr = SvPVbyte_nolen (req->data);
547	}	662	}
548	else	663	else
549	{	664	{
550	req->type = REQ_FSTAT;	665	req->type = REQ_FSTAT;
		666	req->fh = newSVsv (fh_or_path);
551	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	667	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
552	}	668	}
553
554	req->callback = SvREFCNT_inc (callback);
555		669
556	send_req (req);	670	send_req (req);
557	}	671	}
558		672
559	void	673	void
560	aio_unlink(pathname,callback=&PL_sv_undef)	674	aio_unlink(pathname,callback=&PL_sv_undef)
561	SV * pathname	675	SV * pathname
562	SV * callback	676	SV * callback
		677	ALIAS:
		678	aio_unlink = REQ_UNLINK
		679	aio_rmdir = REQ_RMDIR
563	CODE:	680	CODE:
564	{	681	{
565	aio_req req;	682	dREQ;
566		683
567	Newz (0, req, 1, aio_cb);	684	req->type = ix;
		685	req->data = newSVsv (pathname);
		686	req->dataptr = SvPVbyte_nolen (req->data);
568		687
569	if (!req)	688	send_req (req);
570	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;
571		699
572	req->type = REQ_UNLINK;	700	req->type = REQ_SYMLINK;
		701	req->fh = newSVsv (oldpath);
		702	req->data2ptr = SvPVbyte_nolen (req->fh);
573	req->data = newSVsv (pathname);	703	req->data = newSVsv (newpath);
574	req->dataptr = SvPV_nolen (req->data);	704	req->dataptr = SvPVbyte_nolen (req->data);
575	req->callback = SvREFCNT_inc (callback);
576		705
577	send_req (req);	706	send_req (req);
578	}	707	}
579		708
580	void	709	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.9 by root, Tue Jul 12 11:02:54 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 1.9 by root, Tue Jul 12 11:02:54 2005 UTC vs.
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC