[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 1.24 by root, Wed Aug 17 03:01:56 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	pthread_mutex_lock (&frklock);
		273
		274	fork_started = started;
		275
		276	for (;;) {
		277	while (nreqs)
		278	{
		279	poll_wait ();
		280	poll_cb ();
		281	}
		282
		283	max_parallel (0);
		284
		285	pthread_mutex_lock (&reqlock);
		286
		287	if (!nreqs && !started)
		288	break;
		289
		290	pthread_mutex_unlock (&reqlock);
		291
		292	min_parallel (fork_started);
		293	}
		294
		295	pthread_mutex_lock (&reslock);
		296
		297	assert (!started);
		298	assert (!nreqs);
		299	assert (!reqs && !reqe);
		300	assert (!ress && !rese);
		301	}
		302
		303	static void atfork_parent (void)
		304	{
		305	pthread_mutex_unlock (&reslock);
		306	min_parallel (fork_started);
		307	pthread_mutex_unlock (&reqlock);
		308	pthread_mutex_unlock (&frklock);
		309	}
		310
		311	static void atfork_child (void)
		312	{
		313	reqs = reqe = 0;
		314
		315	atfork_parent ();
		316	}
		317
		318	/*****************************************************************************/
		319	/* work around various missing functions */
		320
		321	#if !HAVE_PREADWRITE
		322	# define pread aio_pread
		323	# define pwrite aio_pwrite
		324
		325	/*
		326	* make our pread/pwrite safe against themselves, but not against
		327	* normal read/write by using a mutex. slows down execution a lot,
		328	* but that's your problem, not mine.
		329	*/
		330	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		331
		332	static ssize_t
		333	pread (int fd, void *buf, size_t count, off_t offset)
		334	{
		335	ssize_t res;
		336	off_t ooffset;
		337
		338	pthread_mutex_lock (&iolock);
		339	ooffset = lseek (fd, 0, SEEK_CUR);
		340	lseek (fd, offset, SEEK_SET);
		341	res = read (fd, buf, count);
		342	lseek (fd, ooffset, SEEK_SET);
		343	pthread_mutex_unlock (&iolock);
		344
		345	return res;
		346	}
		347
		348	static ssize_t
		349	pwrite (int fd, void *buf, size_t count, off_t offset)
		350	{
		351	ssize_t res;
		352	off_t ooffset;
		353
		354	pthread_mutex_lock (&iolock);
		355	ooffset = lseek (fd, 0, SEEK_CUR);
		356	lseek (fd, offset, SEEK_SET);
		357	res = write (fd, buf, count);
		358	lseek (fd, offset, SEEK_SET);
		359	pthread_mutex_unlock (&iolock);
		360
		361	return res;
		362	}
		363	#endif
		364
		365	#if !HAVE_FDATASYNC
		366	# define fdatasync fsync
		367	#endif
		368
		369	#if !HAVE_READAHEAD
		370	# define readahead aio_readahead
		371
		372	static char readahead_buf[4096];
		373
		374	static ssize_t
		375	readahead (int fd, off_t offset, size_t count)
		376	{
		377	while (count > 0)
255	{	378	{
256	/* read: grow scalar as necessary */	379	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
257	svptr = SvGROW (data, length + dataoffset);	380
		381	pread (fd, readahead_buf, len, offset);
		382	offset += len;
		383	count -= len;
258	}	384	}
259		385
260	if (length < 0)	386	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	}	387	}
		388	#endif
		389
		390	/*****************************************************************************/
278		391
279	static void *	392	static void *
280	aio_proc (void *thr_arg)	393	aio_proc (void *thr_arg)
281	{	394	{
282	aio_req req;	395	aio_req req;
…		…
308		421
309	type = req->type;	422	type = req->type;
310		423
311	switch (type)	424	switch (type)
312	{	425	{
313	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;	426	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;	427	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
315	#if SYS_readahead	428
316	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	429	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		430
321	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	431	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
322	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	432	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
323	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	433	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
324		434
325	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	435	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
326	case REQ_CLOSE: req->result = close (req->fd); break;	436	case REQ_CLOSE: req->result = close (req->fd); break;
327	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	437	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		438	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		439	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
328		440
		441	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329	case REQ_FSYNC: req->result = fsync (req->fd); break;	442	case REQ_FSYNC: req->result = fsync (req->fd); break;
330	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
331		443
332	case REQ_QUIT:	444	case REQ_QUIT:
333	break;	445	break;
334		446
335	default:	447	default:
…		…
361	while (type != REQ_QUIT);	473	while (type != REQ_QUIT);
362		474
363	return 0;	475	return 0;
364	}	476	}
365		477
		478	#define dREQ \
		479	aio_req req; \
		480	\
		481	if (SvOK (callback) && !SvROK (callback)) \
		482	croak ("clalback must be undef or of reference type"); \
		483	\
		484	Newz (0, req, 1, aio_cb); \
		485	if (!req) \
		486	croak ("out of memory during aio_req allocation"); \
		487	\
		488	req->callback = SvREFCNT_inc (callback);
		489
366	MODULE = IO::AIO PACKAGE = IO::AIO	490	MODULE = IO::AIO PACKAGE = IO::AIO
367		491
368	PROTOTYPES: ENABLE	492	PROTOTYPES: ENABLE
369		493
370	BOOT:	494	BOOT:
…		…
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	499	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
376	croak ("cannot set result pipe to nonblocking mode");	500	croak ("cannot set result pipe to nonblocking mode");
377		501
378	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	502	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
379	croak ("cannot set result pipe to nonblocking mode");	503	croak ("cannot set result pipe to nonblocking mode");
		504
		505	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
380	}	506	}
381		507
382	void	508	void
383	min_parallel(nthreads)	509	min_parallel(nthreads)
384	int nthreads	510	int nthreads
385	PROTOTYPE: $	511	PROTOTYPE: $
386	CODE:
387	while (nthreads > started)
388	start_thread ();
389		512
390	void	513	void
391	max_parallel(nthreads)	514	max_parallel(nthreads)
392	int nthreads	515	int nthreads
393	PROTOTYPE: $	516	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		517
410	int	518	int
411	max_outstanding(nreqs)	519	max_outstanding(nreqs)
412	int nreqs	520	int nreqs
413	PROTOTYPE: $	521	PROTOTYPE: $
…		…
422	int mode	530	int mode
423	SV * callback	531	SV * callback
424	PROTOTYPE: $$$;$	532	PROTOTYPE: $$$;$
425	CODE:	533	CODE:
426	{	534	{
427	aio_req req;	535	dREQ;
428
429	Newz (0, req, 1, aio_cb);
430
431	if (!req)
432	croak ("out of memory during aio_req allocation");
433		536
434	req->type = REQ_OPEN;	537	req->type = REQ_OPEN;
435	req->data = newSVsv (pathname);	538	req->data = newSVsv (pathname);
436	req->dataptr = SvPV_nolen (req->data);	539	req->dataptr = SvPVbyte_nolen (req->data);
437	req->fd = flags;	540	req->fd = flags;
438	req->mode = mode;	541	req->mode = mode;
439	req->callback = SvREFCNT_inc (callback);
440		542
441	send_req (req);	543	send_req (req);
442	}	544	}
443		545
444	void	546	void
445	aio_close(fh,callback=&PL_sv_undef)	547	aio_close(fh,callback=&PL_sv_undef)
446	InputStream fh	548	SV * fh
447	SV * callback	549	SV * callback
448	PROTOTYPE: $;$	550	PROTOTYPE: $;$
449	ALIAS:	551	ALIAS:
450	aio_close = REQ_CLOSE	552	aio_close = REQ_CLOSE
451	aio_fsync = REQ_FSYNC	553	aio_fsync = REQ_FSYNC
452	aio_fdatasync = REQ_FDATASYNC	554	aio_fdatasync = REQ_FDATASYNC
453	CODE:	555	CODE:
454	{	556	{
455	aio_req req;	557	dREQ;
456
457	Newz (0, req, 1, aio_cb);
458
459	if (!req)
460	croak ("out of memory during aio_req allocation");
461		558
462	req->type = ix;	559	req->type = ix;
		560	req->fh = newSVsv (fh);
463	req->fd = PerlIO_fileno (fh);	561	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
464	req->callback = SvREFCNT_inc (callback);
465		562
466	send_req (req);	563	send_req (req);
467	}	564	}
468		565
469	void	566	void
470	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	567	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
471	InputStream fh	568	SV * fh
472	UV offset	569	UV offset
473	IV length	570	IV length
474	SV * data	571	SV * data
475	IV dataoffset	572	IV dataoffset
476	SV * callback	573	SV * callback
		574	ALIAS:
		575	aio_read = REQ_READ
		576	aio_write = REQ_WRITE
477	PROTOTYPE: $$$$$;$	577	PROTOTYPE: $$$$$;$
478	CODE:	578	CODE:
479	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	579	{
		580	aio_req req;
		581	STRLEN svlen;
		582	char *svptr = SvPVbyte (data, svlen);
480		583
481	void	584	SvUPGRADE (data, SVt_PV);
482	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	585	SvPOK_on (data);
483	OutputStream fh	586
484	UV offset	587	if (dataoffset < 0)
485	IV length	588	dataoffset += svlen;
486	SV * data	589
487	IV dataoffset	590	if (dataoffset < 0 \|\| dataoffset > svlen)
488	SV * callback	591	croak ("data offset outside of string");
489	PROTOTYPE: $$$$$;$	592
490	CODE:	593	if (ix == REQ_WRITE)
491	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	594	{
		595	/* write: check length and adjust. */
		596	if (length < 0 \|\| length + dataoffset > svlen)
		597	length = svlen - dataoffset;
		598	}
		599	else
		600	{
		601	/* read: grow scalar as necessary */
		602	svptr = SvGROW (data, length + dataoffset);
		603	}
		604
		605	if (length < 0)
		606	croak ("length must not be negative");
		607
		608	{
		609	dREQ;
		610
		611	req->type = ix;
		612	req->fh = newSVsv (fh);
		613	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		614	: IoOFP (sv_2io (fh)));
		615	req->offset = offset;
		616	req->length = length;
		617	req->data = SvREFCNT_inc (data);
		618	req->dataptr = (char *)svptr + dataoffset;
		619	req->callback = SvREFCNT_inc (callback);
		620
		621	send_req (req);
		622	}
		623	}
492		624
493	void	625	void
494	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	626	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
495	InputStream fh	627	SV * fh
496	UV offset	628	UV offset
497	IV length	629	IV length
498	SV * callback	630	SV * callback
499	PROTOTYPE: $$$;$	631	PROTOTYPE: $$$;$
500	CODE:	632	CODE:
501	{	633	{
502	aio_req req;	634	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		635
512	req->type = REQ_READAHEAD;	636	req->type = REQ_READAHEAD;
		637	req->fh = newSVsv (fh);
513	req->fd = PerlIO_fileno (fh);	638	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
514	req->offset = offset;	639	req->offset = offset;
515	req->length = length;	640	req->length = length;
516	req->callback = SvREFCNT_inc (callback);
517		641
518	send_req (req);	642	send_req (req);
519	}	643	}
520		644
521	void	645	void
…		…
525	ALIAS:	649	ALIAS:
526	aio_stat = REQ_STAT	650	aio_stat = REQ_STAT
527	aio_lstat = REQ_LSTAT	651	aio_lstat = REQ_LSTAT
528	CODE:	652	CODE:
529	{	653	{
530	aio_req req;	654	dREQ;
531
532	Newz (0, req, 1, aio_cb);
533
534	if (!req)
535	croak ("out of memory during aio_req allocation");
536		655
537	New (0, req->statdata, 1, Stat_t);	656	New (0, req->statdata, 1, Stat_t);
538
539	if (!req->statdata)	657	if (!req->statdata)
540	croak ("out of memory during aio_req->statdata allocation");	658	croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
541		659
542	if (SvPOK (fh_or_path))	660	if (SvPOK (fh_or_path))
543	{	661	{
544	req->type = ix;	662	req->type = ix;
545	req->data = newSVsv (fh_or_path);	663	req->data = newSVsv (fh_or_path);
546	req->dataptr = SvPV_nolen (req->data);	664	req->dataptr = SvPVbyte_nolen (req->data);
547	}	665	}
548	else	666	else
549	{	667	{
550	req->type = REQ_FSTAT;	668	req->type = REQ_FSTAT;
		669	req->fh = newSVsv (fh_or_path);
551	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	670	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
552	}	671	}
553
554	req->callback = SvREFCNT_inc (callback);
555		672
556	send_req (req);	673	send_req (req);
557	}	674	}
558		675
559	void	676	void
560	aio_unlink(pathname,callback=&PL_sv_undef)	677	aio_unlink(pathname,callback=&PL_sv_undef)
561	SV * pathname	678	SV * pathname
562	SV * callback	679	SV * callback
		680	ALIAS:
		681	aio_unlink = REQ_UNLINK
		682	aio_rmdir = REQ_RMDIR
563	CODE:	683	CODE:
564	{	684	{
565	aio_req req;	685	dREQ;
566		686
567	Newz (0, req, 1, aio_cb);	687	req->type = ix;
		688	req->data = newSVsv (pathname);
		689	req->dataptr = SvPVbyte_nolen (req->data);
568		690
569	if (!req)	691	send_req (req);
570	croak ("out of memory during aio_req allocation");	692	}
		693
		694	void
		695	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		696	SV * oldpath
		697	SV * newpath
		698	SV * callback
		699	CODE:
		700	{
		701	dREQ;
571		702
572	req->type = REQ_UNLINK;	703	req->type = REQ_SYMLINK;
		704	req->fh = newSVsv (oldpath);
		705	req->data2ptr = SvPVbyte_nolen (req->fh);
573	req->data = newSVsv (pathname);	706	req->data = newSVsv (newpath);
574	req->dataptr = SvPV_nolen (req->data);	707	req->dataptr = SvPVbyte_nolen (req->data);
575	req->callback = SvREFCNT_inc (callback);
576		708
577	send_req (req);	709	send_req (req);
578	}	710	}
579		711
580	void	712	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 1.24 by root, Wed Aug 17 03:01:56 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 1.24 by root, Wed Aug 17 03:01:56 2005 UTC