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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC

…		…
1	#define _XOPEN_SOURCE 500	1	#define _REENTRANT 1
		2	#include <errno.h>
2		3
3	#include "EXTERN.h"	4	#include "EXTERN.h"
4	#include "perl.h"	5	#include "perl.h"
5	#include "XSUB.h"	6	#include "XSUB.h"
		7
		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
…		…
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		68
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	69	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	70	static volatile aio_req ress, rese; /* queue start, queue end */
		71
		72	static void free_req (aio_req req)
		73	{
		74	if (req->data)
		75	SvREFCNT_dec (req->data);
		76
		77	if (req->fh)
		78	SvREFCNT_dec (req->fh);
		79
		80	if (req->statdata)
		81	Safefree (req->statdata);
		82
		83	if (req->callback)
		84	SvREFCNT_dec (req->callback);
		85
		86	Safefree (req);
		87	}
69		88
70	static void	89	static void
71	poll_wait ()	90	poll_wait ()
72	{	91	{
73	if (nreqs && !ress)	92	if (nreqs && !ress)
…		…
83	static int	102	static int
84	poll_cb ()	103	poll_cb ()
85	{	104	{
86	dSP;	105	dSP;
87	int count = 0;	106	int count = 0;
		107	int do_croak = 0;
88	aio_req req, prv;	108	aio_req req;
89		109
90	static int rl;//D	110	for (;;)
91	//printf ("%d ENTER\n", ++rl);//D
92
93	pthread_mutex_lock (&reslock);
94
95	{
96	/* read any signals sent by the worker threads */
97	char buf [32];
98	while (read (respipe [0], buf, 32) > 0)
99	;
100	}
101
102	req = ress;
103	ress = rese = 0;
104
105	pthread_mutex_unlock (&reslock);
106
107	while (req)
108	{	111	{
		112	pthread_mutex_lock (&reslock);
		113	req = ress;
		114
		115	if (req)
		116	{
		117	ress = req->next;
		118
		119	if (!ress)
		120	{
		121	rese = 0;
		122
		123	/* read any signals sent by the worker threads */
		124	char buf [32];
		125	while (read (respipe [0], buf, 32) == 32)
		126	;
		127	}
		128	}
		129
		130	pthread_mutex_unlock (&reslock);
		131
		132	if (!req)
		133	break;
		134
109	nreqs--;	135	nreqs--;
110	//printf ("%d count %d %p->%p\n", rl, count, req, req->next);//D
111		136
112	if (req->type == REQ_QUIT)	137	if (req->type == REQ_QUIT)
113	started--;	138	started--;
114	else	139	else
115	{	140	{
116	int errorno = errno;	141	int errorno = errno;
117	errno = req->errorno;	142	errno = req->errorno;
118		143
119	if (req->type == REQ_READ)	144	if (req->type == REQ_READ)
120	SvCUR_set (req->data, req->dataoffset	145	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
121	+ req->result > 0 ? req->result : 0);
122		146
		147	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		148	SvREADONLY_off (req->data);
		149
123	if (req->data)	150	if (req->statdata)
124	SvREFCNT_dec (req->data);
125
126	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
127	{	151	{
128	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	152	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129	PL_laststatval = req->result;	153	PL_laststatval = req->result;
130	PL_statcache = *(req->statdata);	154	PL_statcache = *(req->statdata);
131
132	Safefree (req->statdata);
133	}	155	}
134		156
		157	ENTER;
135	PUSHMARK (SP);	158	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	159	XPUSHs (sv_2mortal (newSViv (req->result)));
137		160
138	if (req->type == REQ_OPEN)	161	if (req->type == REQ_OPEN)
139	{	162	{
…		…
142		165
143	PUTBACK;	166	PUTBACK;
144	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	167	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
145	SPAGAIN;	168	SPAGAIN;
146		169
147	fh = POPs;	170	fh = SvREFCNT_inc (POPs);
148		171
149	PUSHMARK (SP);	172	PUSHMARK (SP);
150	XPUSHs (fh);	173	XPUSHs (sv_2mortal (fh));
151	}	174	}
152		175
153	if (SvOK (req->callback))	176	if (SvOK (req->callback))
154	{	177	{
155	PUTBACK;	178	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	179	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	180	SPAGAIN;
		181
		182	if (SvTRUE (ERRSV))
		183	{
		184	free_req (req);
		185	croak (0);
		186	}
158	}	187	}
		188
159		189	LEAVE;
160	if (req->callback)
161	SvREFCNT_dec (req->callback);
162		190
163	errno = errorno;	191	errno = errorno;
164	count++;	192	count++;
165	}	193	}
166		194
167	prv = req;	195	free_req (req);
168	req = req->next;
169	Safefree (prv);
170
171	/* TODO: croak on errors? */
172	}	196	}
173		197
174	//printf ("%d LEAVE %p %p\n", rl--, ress, rese);//D
175	return count;	198	return count;
176	}	199	}
177		200
178	static void aio_proc(void arg);	201	static void aio_proc(void arg);
179		202
…		…
215	reqe = reqs = req;	238	reqe = reqs = req;
216		239
217	pthread_cond_signal (&reqwait);	240	pthread_cond_signal (&reqwait);
218	pthread_mutex_unlock (&reqlock);	241	pthread_mutex_unlock (&reqlock);
219		242
220	while (nreqs > max_outstanding)	243	if (nreqs > max_outstanding)
		244	for (;;)
		245	{
		246	poll_cb ();
		247
		248	if (nreqs <= max_outstanding)
		249	break;
		250
		251	poll_wait ();
		252	}
		253	}
		254
		255	static void
		256	end_thread (void)
		257	{
		258	aio_req req;
		259	Newz (0, req, 1, aio_cb);
		260	req->type = REQ_QUIT;
		261
		262	send_req (req);
		263	}
		264
		265	static void min_parallel (int nthreads)
		266	{
		267	while (nthreads > started)
		268	start_thread ();
		269	}
		270
		271	static void max_parallel (int nthreads)
		272	{
		273	int cur = started;
		274
		275	while (cur > nthreads)
		276	{
		277	end_thread ();
		278	cur--;
		279	}
		280
		281	while (started > nthreads)
221	{	282	{
222	poll_wait ();	283	poll_wait ();
223	poll_cb ();	284	poll_cb ();
224	}	285	}
225	}	286	}
226		287
227	static void	288	static void create_pipe ()
228	end_thread (void)
229	{	289	{
		290	if (pipe (respipe))
		291	croak ("unable to initialize result pipe");
		292
		293	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		294	croak ("cannot set result pipe to nonblocking mode");
		295
		296	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		297	croak ("cannot set result pipe to nonblocking mode");
		298	}
		299
		300	static void atfork_prepare (void)
		301	{
		302	pthread_mutex_lock (&reqlock);
		303	pthread_mutex_lock (&reslock);
		304	}
		305
		306	static void atfork_parent (void)
		307	{
		308	pthread_mutex_unlock (&reslock);
		309	pthread_mutex_unlock (&reqlock);
		310	}
		311
		312	static void atfork_child (void)
		313	{
230	aio_req req;	314	aio_req prv;
231	New (0, req, 1, aio_cb);
232	req->type = REQ_QUIT;
233		315
234	send_req (req);	316	int restart = started;
235	}	317	started = 0;
236		318
237	static void	319	while (reqs)
238	read_write (int dowrite, int fd, off_t offset, size_t length,
239	SV data, STRLEN dataoffset, SV callback)
240	{
241	aio_req req;
242	STRLEN svlen;
243	char *svptr = SvPV (data, svlen);
244
245	SvUPGRADE (data, SVt_PV);
246	SvPOK_on (data);
247
248	if (dataoffset < 0)
249	dataoffset += svlen;
250
251	if (dataoffset < 0 \|\| dataoffset > svlen)
252	croak ("data offset outside of string");
253
254	if (dowrite)
255	{	320	{
256	/* write: check length and adjust. */	321	prv = reqs;
257	if (length < 0 \|\| length + dataoffset > svlen)	322	reqs = prv->next;
258	length = svlen - dataoffset;	323	free_req (prv);
259	}	324	}
260	else	325
		326	reqs = reqe = 0;
		327
		328	while (ress)
261	{	329	{
262	/* read: grow scalar as necessary */	330	prv = ress;
263	svptr = SvGROW (data, length + dataoffset);	331	ress = prv->next;
		332	free_req (prv);
		333	}
		334
		335	ress = rese = 0;
		336
		337	atfork_parent ();
		338
		339	min_parallel (restart);
		340	}
		341
		342	/*****************************************************************************/
		343	/* work around various missing functions */
		344
		345	#if !HAVE_PREADWRITE
		346	# define pread aio_pread
		347	# define pwrite aio_pwrite
		348
		349	/*
		350	* make our pread/pwrite safe against themselves, but not against
		351	* normal read/write by using a mutex. slows down execution a lot,
		352	* but that's your problem, not mine.
		353	*/
		354	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		355
		356	static ssize_t
		357	pread (int fd, void *buf, size_t count, off_t offset)
		358	{
		359	ssize_t res;
		360	off_t ooffset;
		361
		362	pthread_mutex_lock (&iolock);
		363	ooffset = lseek (fd, 0, SEEK_CUR);
		364	lseek (fd, offset, SEEK_SET);
		365	res = read (fd, buf, count);
		366	lseek (fd, ooffset, SEEK_SET);
		367	pthread_mutex_unlock (&iolock);
		368
		369	return res;
		370	}
		371
		372	static ssize_t
		373	pwrite (int fd, void *buf, size_t count, off_t offset)
		374	{
		375	ssize_t res;
		376	off_t ooffset;
		377
		378	pthread_mutex_lock (&iolock);
		379	ooffset = lseek (fd, 0, SEEK_CUR);
		380	lseek (fd, offset, SEEK_SET);
		381	res = write (fd, buf, count);
		382	lseek (fd, offset, SEEK_SET);
		383	pthread_mutex_unlock (&iolock);
		384
		385	return res;
		386	}
		387	#endif
		388
		389	#if !HAVE_FDATASYNC
		390	# define fdatasync fsync
		391	#endif
		392
		393	#if !HAVE_READAHEAD
		394	# define readahead aio_readahead
		395
		396	static char readahead_buf[4096];
		397
		398	static ssize_t
		399	readahead (int fd, off_t offset, size_t count)
		400	{
		401	while (count > 0)
264	}	402	{
		403	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
265		404
266	if (length < 0)	405	pread (fd, readahead_buf, len, offset);
267	croak ("length must not be negative");	406	offset += len;
		407	count -= len;
		408	}
268		409
269	Newz (0, req, 1, aio_cb);	410	errno = 0;
270
271	if (!req)
272	croak ("out of memory during aio_req allocation");
273
274	req->type = dowrite ? REQ_WRITE : REQ_READ;
275	req->fd = fd;
276	req->offset = offset;
277	req->length = length;
278	req->data = SvREFCNT_inc (data);
279	req->dataptr = (char *)svptr + dataoffset;
280	req->callback = SvREFCNT_inc (callback);
281
282	send_req (req);
283	}	411	}
		412	#endif
		413
		414	/*****************************************************************************/
284		415
285	static void *	416	static void *
286	aio_proc (void *thr_arg)	417	aio_proc (void *thr_arg)
287	{	418	{
288	aio_req req;	419	aio_req req;
…		…
316		447
317	switch (type)	448	switch (type)
318	{	449	{
319	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	450	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
320	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	451	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
321	#if SYS_readahead	452
322	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	453	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
323	#else
324	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
325	#endif
326		454
327	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	455	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
328	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	456	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
329	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	457	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
330		458
331	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	459	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
332	case REQ_CLOSE: req->result = close (req->fd); break;	460	case REQ_CLOSE: req->result = close (req->fd); break;
333	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	461	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		462	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		463	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
334		464
		465	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
335	case REQ_FSYNC: req->result = fsync (req->fd); break;	466	case REQ_FSYNC: req->result = fsync (req->fd); break;
336	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
337		467
338	case REQ_QUIT:	468	case REQ_QUIT:
339	break;	469	break;
340		470
341	default:	471	default:
…		…
367	while (type != REQ_QUIT);	497	while (type != REQ_QUIT);
368		498
369	return 0;	499	return 0;
370	}	500	}
371		501
		502	#define dREQ \
		503	aio_req req; \
		504	\
		505	if (SvOK (callback) && !SvROK (callback)) \
		506	croak ("clalback must be undef or of reference type"); \
		507	\
		508	Newz (0, req, 1, aio_cb); \
		509	if (!req) \
		510	croak ("out of memory during aio_req allocation"); \
		511	\
		512	req->callback = newSVsv (callback);
		513
372	MODULE = IO::AIO PACKAGE = IO::AIO	514	MODULE = IO::AIO PACKAGE = IO::AIO
373		515
374	PROTOTYPES: ENABLE	516	PROTOTYPES: ENABLE
375		517
376	BOOT:	518	BOOT:
377	{	519	{
378	if (pipe (respipe))	520	create_pipe ();
379	croak ("unable to initialize result pipe");	521	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
380
381	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
382	croak ("cannot set result pipe to nonblocking mode");
383
384	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
385	croak ("cannot set result pipe to nonblocking mode");
386	}	522	}
387		523
388	void	524	void
389	min_parallel(nthreads)	525	min_parallel(nthreads)
390	int nthreads	526	int nthreads
391	PROTOTYPE: $	527	PROTOTYPE: $
392	CODE:
393	while (nthreads > started)
394	start_thread ();
395		528
396	void	529	void
397	max_parallel(nthreads)	530	max_parallel(nthreads)
398	int nthreads	531	int nthreads
399	PROTOTYPE: $	532	PROTOTYPE: $
400	CODE:
401	{
402	int cur = started;
403	while (cur > nthreads)
404	{
405	end_thread ();
406	cur--;
407	}
408
409	while (started > nthreads)
410	{
411	poll_wait ();
412	poll_cb ();
413	}
414	}
415		533
416	int	534	int
417	max_outstanding(nreqs)	535	max_outstanding(nreqs)
418	int nreqs	536	int nreqs
419	PROTOTYPE: $	537	PROTOTYPE: $
…		…
428	int mode	546	int mode
429	SV * callback	547	SV * callback
430	PROTOTYPE: $$$;$	548	PROTOTYPE: $$$;$
431	CODE:	549	CODE:
432	{	550	{
433	aio_req req;	551	dREQ;
434
435	Newz (0, req, 1, aio_cb);
436
437	if (!req)
438	croak ("out of memory during aio_req allocation");
439		552
440	req->type = REQ_OPEN;	553	req->type = REQ_OPEN;
441	req->data = newSVsv (pathname);	554	req->data = newSVsv (pathname);
442	req->dataptr = SvPV_nolen (req->data);	555	req->dataptr = SvPVbyte_nolen (req->data);
443	req->fd = flags;	556	req->fd = flags;
444	req->mode = mode;	557	req->mode = mode;
445	req->callback = SvREFCNT_inc (callback);
446		558
447	send_req (req);	559	send_req (req);
448	}	560	}
449		561
450	void	562	void
451	aio_close(fh,callback=&PL_sv_undef)	563	aio_close(fh,callback=&PL_sv_undef)
452	InputStream fh	564	SV * fh
453	SV * callback	565	SV * callback
454	PROTOTYPE: $;$	566	PROTOTYPE: $;$
455	ALIAS:	567	ALIAS:
456	aio_close = REQ_CLOSE	568	aio_close = REQ_CLOSE
457	aio_fsync = REQ_FSYNC	569	aio_fsync = REQ_FSYNC
458	aio_fdatasync = REQ_FDATASYNC	570	aio_fdatasync = REQ_FDATASYNC
459	CODE:	571	CODE:
460	{	572	{
461	aio_req req;	573	dREQ;
462
463	Newz (0, req, 1, aio_cb);
464
465	if (!req)
466	croak ("out of memory during aio_req allocation");
467		574
468	req->type = ix;	575	req->type = ix;
		576	req->fh = newSVsv (fh);
469	req->fd = PerlIO_fileno (fh);	577	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
470	req->callback = SvREFCNT_inc (callback);
471		578
472	send_req (req);	579	send_req (req);
473	}	580	}
474		581
475	void	582	void
476	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	583	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
477	InputStream fh	584	SV * fh
478	UV offset	585	UV offset
479	IV length	586	IV length
480	SV * data	587	SV * data
481	IV dataoffset	588	IV dataoffset
482	SV * callback	589	SV * callback
		590	ALIAS:
		591	aio_read = REQ_READ
		592	aio_write = REQ_WRITE
483	PROTOTYPE: $$$$$;$	593	PROTOTYPE: $$$$$;$
484	CODE:	594	CODE:
485	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	595	{
		596	aio_req req;
		597	STRLEN svlen;
		598	char *svptr = SvPVbyte (data, svlen);
486		599
487	void	600	SvUPGRADE (data, SVt_PV);
488	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	601	SvPOK_on (data);
489	OutputStream fh	602
490	UV offset	603	if (dataoffset < 0)
491	IV length	604	dataoffset += svlen;
492	SV * data	605
493	IV dataoffset	606	if (dataoffset < 0 \|\| dataoffset > svlen)
494	SV * callback	607	croak ("data offset outside of string");
495	PROTOTYPE: $$$$$;$	608
496	CODE:	609	if (ix == REQ_WRITE)
497	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	610	{
		611	/* write: check length and adjust. */
		612	if (length < 0 \|\| length + dataoffset > svlen)
		613	length = svlen - dataoffset;
		614	}
		615	else
		616	{
		617	/* read: grow scalar as necessary */
		618	svptr = SvGROW (data, length + dataoffset);
		619	}
		620
		621	if (length < 0)
		622	croak ("length must not be negative");
		623
		624	{
		625	dREQ;
		626
		627	req->type = ix;
		628	req->fh = newSVsv (fh);
		629	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		630	: IoOFP (sv_2io (fh)));
		631	req->offset = offset;
		632	req->length = length;
		633	req->data = SvREFCNT_inc (data);
		634	req->dataptr = (char *)svptr + dataoffset;
		635
		636	if (!SvREADONLY (data))
		637	{
		638	SvREADONLY_on (data);
		639	req->data2ptr = (void *)data;
		640	}
		641
		642	send_req (req);
		643	}
		644	}
498		645
499	void	646	void
500	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	647	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
501	InputStream fh	648	SV * fh
502	UV offset	649	UV offset
503	IV length	650	IV length
504	SV * callback	651	SV * callback
505	PROTOTYPE: $$$;$	652	PROTOTYPE: $$$;$
506	CODE:	653	CODE:
507	{	654	{
508	aio_req req;	655	dREQ;
509
510	if (length < 0)
511	croak ("length must not be negative");
512
513	Newz (0, req, 1, aio_cb);
514
515	if (!req)
516	croak ("out of memory during aio_req allocation");
517		656
518	req->type = REQ_READAHEAD;	657	req->type = REQ_READAHEAD;
		658	req->fh = newSVsv (fh);
519	req->fd = PerlIO_fileno (fh);	659	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
520	req->offset = offset;	660	req->offset = offset;
521	req->length = length;	661	req->length = length;
522	req->callback = SvREFCNT_inc (callback);
523		662
524	send_req (req);	663	send_req (req);
525	}	664	}
526		665
527	void	666	void
…		…
531	ALIAS:	670	ALIAS:
532	aio_stat = REQ_STAT	671	aio_stat = REQ_STAT
533	aio_lstat = REQ_LSTAT	672	aio_lstat = REQ_LSTAT
534	CODE:	673	CODE:
535	{	674	{
536	aio_req req;	675	dREQ;
537
538	Newz (0, req, 1, aio_cb);
539
540	if (!req)
541	croak ("out of memory during aio_req allocation");
542		676
543	New (0, req->statdata, 1, Stat_t);	677	New (0, req->statdata, 1, Stat_t);
544
545	if (!req->statdata)	678	if (!req->statdata)
		679	{
		680	free_req (req);
546	croak ("out of memory during aio_req->statdata allocation");	681	croak ("out of memory during aio_req->statdata allocation");
		682	}
547		683
548	if (SvPOK (fh_or_path))	684	if (SvPOK (fh_or_path))
549	{	685	{
550	req->type = ix;	686	req->type = ix;
551	req->data = newSVsv (fh_or_path);	687	req->data = newSVsv (fh_or_path);
552	req->dataptr = SvPV_nolen (req->data);	688	req->dataptr = SvPVbyte_nolen (req->data);
553	}	689	}
554	else	690	else
555	{	691	{
556	req->type = REQ_FSTAT;	692	req->type = REQ_FSTAT;
		693	req->fh = newSVsv (fh_or_path);
557	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	694	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
558	}	695	}
559
560	req->callback = SvREFCNT_inc (callback);
561		696
562	send_req (req);	697	send_req (req);
563	}	698	}
564		699
565	void	700	void
566	aio_unlink(pathname,callback=&PL_sv_undef)	701	aio_unlink(pathname,callback=&PL_sv_undef)
567	SV * pathname	702	SV * pathname
568	SV * callback	703	SV * callback
		704	ALIAS:
		705	aio_unlink = REQ_UNLINK
		706	aio_rmdir = REQ_RMDIR
569	CODE:	707	CODE:
570	{	708	{
571	aio_req req;	709	dREQ;
572		710
573	Newz (0, req, 1, aio_cb);	711	req->type = ix;
		712	req->data = newSVsv (pathname);
		713	req->dataptr = SvPVbyte_nolen (req->data);
574		714
575	if (!req)	715	send_req (req);
576	croak ("out of memory during aio_req allocation");	716	}
		717
		718	void
		719	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		720	SV * oldpath
		721	SV * newpath
		722	SV * callback
		723	CODE:
		724	{
		725	dREQ;
577		726
578	req->type = REQ_UNLINK;	727	req->type = REQ_SYMLINK;
		728	req->fh = newSVsv (oldpath);
		729	req->data2ptr = SvPVbyte_nolen (req->fh);
579	req->data = newSVsv (pathname);	730	req->data = newSVsv (newpath);
580	req->dataptr = SvPV_nolen (req->data);	731	req->dataptr = SvPVbyte_nolen (req->data);
581	req->callback = SvREFCNT_inc (callback);
582		732
583	send_req (req);	733	send_req (req);
584	}	734	}
585		735
586	void	736	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs. Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC