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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.19 by root, Sun Jul 31 19:04:45 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC

…		…
1	#ifndef _REENTRANT
2	# define _REENTRANT 1	1	#define _REENTRANT 1
3	#endif
4	#include <errno.h>	2	#include <errno.h>
5		3
6	#include "EXTERN.h"	4	#include "EXTERN.h"
7	#include "perl.h"	5	#include "perl.h"
8	#include "XSUB.h"	6	#include "XSUB.h"
9		7
10	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
11		11
12	#include <sys/types.h>	12	#include <sys/types.h>
13	#include <sys/stat.h>	13	#include <sys/stat.h>
14		14
15	#include <unistd.h>	15	#include <unistd.h>
16	#include <fcntl.h>	16	#include <fcntl.h>
17	#include <signal.h>	17	#include <signal.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#include <pthread.h>	20	#if HAVE_SENDFILE
21		21	# if __linux
22	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
23	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
24	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	24	# include <sys/socket.h>
		25	# include <sys/uio.h>
		26	# elif __hpux
		27	# include <sys/socket.h>
		28	# elif __solaris /* not yet */
		29	# include <sys/sendfile.h>
		30	# else
		31	# error sendfile support requested but not available
		32	# endif
		33	#endif
25		34
26	#if __ia64	35	#if __ia64
27	# define STACKSIZE 65536	36	# define STACKSIZE 65536
28	#else	37	#else
29	# define STACKSIZE 4096	38	# define STACKSIZE 4096
31		40
32	enum {	41	enum {
33	REQ_QUIT,	42	REQ_QUIT,
34	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
35	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
36	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
37	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
38	};	50	};
39		51
40	typedef struct aio_cb {	52	typedef struct aio_cb {
41	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
42		54
43	int type;	55	int type;
44		56
45	int fd;	57	int fd, fd2;
46	off_t offset;	58	off_t offset;
47	size_t length;	59	size_t length;
48	ssize_t result;	60	ssize_t result;
49	mode_t mode; /* open */	61	mode_t mode; /* open */
50	int errorno;	62	int errorno;
51	SV data, callback, *fh;	63	SV data, callback;
52	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
53	STRLEN dataoffset;	66	STRLEN dataoffset;
54		67
55	Stat_t *statdata;	68	Stat_t *statdata;
56	} aio_cb;	69	} aio_cb;
57		70
58	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
59		72
60	static int started;	73	static int started, wanted;
61	static volatile int nreqs;	74	static volatile int nreqs;
62	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
63	static int respipe [2];	76	static int respipe [2];
64		77
65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68		81
69	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
70	static volatile aio_req ress, rese; /* queue start, queue end */	83	static volatile aio_req ress, rese; /* queue start, queue end */
		84
		85	static void free_req (aio_req req)
		86	{
		87	if (req->data)
		88	SvREFCNT_dec (req->data);
		89
		90	if (req->fh)
		91	SvREFCNT_dec (req->fh);
		92
		93	if (req->fh2)
		94	SvREFCNT_dec (req->fh2);
		95
		96	if (req->statdata)
		97	Safefree (req->statdata);
		98
		99	if (req->callback)
		100	SvREFCNT_dec (req->callback);
		101
		102	Safefree (req);
		103	}
71		104
72	static void	105	static void
73	poll_wait ()	106	poll_wait ()
74	{	107	{
75	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
85	static int	118	static int
86	poll_cb ()	119	poll_cb ()
87	{	120	{
88	dSP;	121	dSP;
89	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
90	aio_req req, prv;	124	aio_req req;
91		125
92	pthread_mutex_lock (&reslock);	126	for (;;)
93
94	{
95	/* read any signals sent by the worker threads */
96	char buf [32];
97	while (read (respipe [0], buf, 32) > 0)
98	;
99	}
100
101	req = ress;
102	ress = rese = 0;
103
104	pthread_mutex_unlock (&reslock);
105
106	while (req)
107	{	127	{
		128	pthread_mutex_lock (&reslock);
		129	req = ress;
		130
		131	if (req)
		132	{
		133	ress = req->next;
		134
		135	if (!ress)
		136	{
		137	/* read any signals sent by the worker threads */
		138	char buf [32];
		139	while (read (respipe [0], buf, 32) == 32)
		140	;
		141
		142	rese = 0;
		143	}
		144	}
		145
		146	pthread_mutex_unlock (&reslock);
		147
		148	if (!req)
		149	break;
		150
108	nreqs--;	151	nreqs--;
109		152
110	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
111	started--;	154	started--;
112	else	155	else
113	{	156	{
114	int errorno = errno;	157	int errorno = errno;
115	errno = req->errorno;	158	errno = req->errorno;
116		159
117	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
118	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
119	+ req->result > 0 ? req->result : 0);
120		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
121	if (req->data)	166	if (req->statdata)
122	SvREFCNT_dec (req->data);
123
124	if (req->fh)
125	SvREFCNT_dec (req->fh);
126
127	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
128	{	167	{
129	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
130	PL_laststatval = req->result;	169	PL_laststatval = req->result;
131	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
132
133	Safefree (req->statdata);
134	}	171	}
135		172
136	ENTER;	173	ENTER;
137	PUSHMARK (SP);	174	PUSHMARK (SP);
138	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
155	if (SvOK (req->callback))	192	if (SvOK (req->callback))
156	{	193	{
157	PUTBACK;	194	PUTBACK;
158	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
159	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
160	}	203	}
161		204
162	LEAVE;	205	LEAVE;
163
164	if (req->callback)
165	SvREFCNT_dec (req->callback);
166		206
167	errno = errorno;	207	errno = errorno;
168	count++;	208	count++;
169	}	209	}
170		210
171	prv = req;	211	free_req (req);
172	req = req->next;
173	Safefree (prv);
174
175	/* TODO: croak on errors? */
176	}	212	}
177		213
178	return count;	214	return count;
179	}	215	}
180		216
…		…
201	}	237	}
202		238
203	static void	239	static void
204	send_req (aio_req req)	240	send_req (aio_req req)
205	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
206	nreqs++;	245	nreqs++;
207		246
208	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
209		248
210	req->next = 0;	249	req->next = 0;
…		…
218	reqe = reqs = req;	257	reqe = reqs = req;
219		258
220	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
221	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
222		261
223	while (nreqs > max_outstanding)	262	if (nreqs > max_outstanding)
		263	for (;;)
		264	{
		265	poll_cb ();
		266
		267	if (nreqs <= max_outstanding)
		268	break;
		269
		270	poll_wait ();
		271	}
		272	}
		273
		274	static void
		275	end_thread (void)
		276	{
		277	aio_req req;
		278	Newz (0, req, 1, aio_cb);
		279	req->type = REQ_QUIT;
		280
		281	send_req (req);
		282	}
		283
		284	static void min_parallel (int nthreads)
		285	{
		286	if (wanted < nthreads)
		287	wanted = nthreads;
		288	}
		289
		290	static void max_parallel (int nthreads)
		291	{
		292	int cur = started;
		293
		294	if (wanted > nthreads)
		295	wanted = nthreads;
		296
		297	while (cur > wanted)
		298	{
		299	end_thread ();
		300	cur--;
		301	}
		302
		303	while (started > wanted)
224	{	304	{
225	poll_wait ();	305	poll_wait ();
226	poll_cb ();	306	poll_cb ();
227	}	307	}
228	}	308	}
229		309
230	static void	310	static void create_pipe ()
231	end_thread (void)
232	{	311	{
		312	if (pipe (respipe))
		313	croak ("unable to initialize result pipe");
		314
		315	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		316	croak ("cannot set result pipe to nonblocking mode");
		317
		318	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		319	croak ("cannot set result pipe to nonblocking mode");
		320	}
		321
		322	static void atfork_prepare (void)
		323	{
		324	pthread_mutex_lock (&reqlock);
		325	pthread_mutex_lock (&reslock);
		326	}
		327
		328	static void atfork_parent (void)
		329	{
		330	pthread_mutex_unlock (&reslock);
		331	pthread_mutex_unlock (&reqlock);
		332	}
		333
		334	static void atfork_child (void)
		335	{
233	aio_req req;	336	aio_req prv;
234	New (0, req, 1, aio_cb);
235	req->type = REQ_QUIT;
236		337
237	send_req (req);	338	started = 0;
238	}
239		339
		340	while (reqs)
		341	{
		342	prv = reqs;
		343	reqs = prv->next;
		344	free_req (prv);
		345	}
		346
		347	reqs = reqe = 0;
		348
		349	while (ress)
		350	{
		351	prv = ress;
		352	ress = prv->next;
		353	free_req (prv);
		354	}
		355
		356	ress = rese = 0;
		357
		358	close (respipe [0]);
		359	close (respipe [1]);
		360	create_pipe ();
		361
		362	atfork_parent ();
		363	}
		364
		365	/*****************************************************************************/
240	/* work around various missing functions */	366	/* work around various missing functions */
241		367
242	#if !HAVE_PREADWRITE	368	#if !HAVE_PREADWRITE
243	# define pread aio_pread	369	# define pread aio_pread
244	# define pwrite aio_pwrite	370	# define pwrite aio_pwrite
…		…
306		432
307	errno = 0;	433	errno = 0;
308	}	434	}
309	#endif	435	#endif
310		436
		437	/* sendfile always needs emulation */
		438	static ssize_t
		439	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		440	{
		441	ssize_t res;
		442
		443	if (!count)
		444	return 0;
		445
		446	#if HAVE_SENDFILE
		447	# if __linux
		448	res = sendfile (ofd, ifd, &offset, count);
		449
		450	# elif __freebsd
		451	/*
		452	* Of course, the freebsd sendfile is a dire hack with no thoughts
		453	* wasted on making it similar to other I/O functions.
		454	*/
		455	{
		456	off_t sbytes;
		457	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		458
		459	if (res < 0 && sbytes)
		460	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
		461	res = sbytes;
		462	}
		463
		464	# elif __hpux
		465	res = sendfile (ofd, ifd, offset, count, 0, 0);
		466
		467	# elif __solaris
		468	{
		469	struct sendfilevec vec;
		470	size_t sbytes;
		471
		472	vec.sfv_fd = ifd;
		473	vec.sfv_flag = 0;
		474	vec.sfv_off = offset;
		475	vec.sfv_len = count;
		476
		477	res = sendfilev (ofd, &vec, 1, &sbytes);
		478
		479	if (res < 0 && sbytes)
		480	res = sbytes;
		481	}
		482
		483	# else
		484	res = -1;
		485	errno = ENOSYS;
		486	# endif
		487	#endif
		488
		489	if (res < 0
		490	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
		491	#if __solaris
		492	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE
		493	#endif
		494	)
		495	)
		496	{
		497	/* emulate sendfile. this is a major pain in the ass */
		498	char *buf = malloc (4096);
		499	res = 0;
		500
		501	for (;;)
		502	{
		503	ssize_t cnt;
		504
		505	cnt = pread (ifd, buf, 4096, offset);
		506
		507	if (cnt <= 0)
		508	{
		509	if (cnt && !res) res = -1;
		510	break;
		511	}
		512
		513	cnt = write (ofd, buf, cnt);
		514
		515	if (cnt <= 0)
		516	{
		517	if (cnt && !res) res = -1;
		518	break;
		519	}
		520
		521	offset += cnt;
		522	res += cnt;
		523	}
		524
		525	{
		526	int errorno = errno;
		527	free (buf);
		528	errno = errorno;
		529	}
		530	}
		531
		532	return res;
		533	}
		534
		535	/*****************************************************************************/
		536
311	static void *	537	static void *
312	aio_proc (void *thr_arg)	538	aio_proc (void *thr_arg)
313	{	539	{
314	aio_req req;	540	aio_req req;
315	int type;	541	int type;
…		…
344	{	570	{
345	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	571	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
346	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	572	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
347		573
348	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	574	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		575	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
349		576
350	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	577	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
351	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	578	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
352	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	579	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
353		580
354	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	581	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
355	case REQ_CLOSE: req->result = close (req->fd); break;	582	case REQ_CLOSE: req->result = close (req->fd); break;
356	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	583	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		584	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		585	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
357		586
358	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	587	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
359	case REQ_FSYNC: req->result = fsync (req->fd); break;	588	case REQ_FSYNC: req->result = fsync (req->fd); break;
360		589
361	case REQ_QUIT:	590	case REQ_QUIT:
…		…
390	while (type != REQ_QUIT);	619	while (type != REQ_QUIT);
391		620
392	return 0;	621	return 0;
393	}	622	}
394		623
		624	#define dREQ \
		625	aio_req req; \
		626	\
		627	if (SvOK (callback) && !SvROK (callback)) \
		628	croak ("clalback must be undef or of reference type"); \
		629	\
		630	Newz (0, req, 1, aio_cb); \
		631	if (!req) \
		632	croak ("out of memory during aio_req allocation"); \
		633	\
		634	req->callback = newSVsv (callback);
		635
395	MODULE = IO::AIO PACKAGE = IO::AIO	636	MODULE = IO::AIO PACKAGE = IO::AIO
396		637
397	PROTOTYPES: ENABLE	638	PROTOTYPES: ENABLE
398		639
399	BOOT:	640	BOOT:
400	{	641	{
401	if (pipe (respipe))	642	create_pipe ();
402	croak ("unable to initialize result pipe");	643	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
403
404	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
405	croak ("cannot set result pipe to nonblocking mode");
406
407	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
408	croak ("cannot set result pipe to nonblocking mode");
409	}	644	}
410		645
411	void	646	void
412	min_parallel(nthreads)	647	min_parallel(nthreads)
413	int nthreads	648	int nthreads
414	PROTOTYPE: $	649	PROTOTYPE: $
415	CODE:
416	while (nthreads > started)
417	start_thread ();
418		650
419	void	651	void
420	max_parallel(nthreads)	652	max_parallel(nthreads)
421	int nthreads	653	int nthreads
422	PROTOTYPE: $	654	PROTOTYPE: $
423	CODE:
424	{
425	int cur = started;
426	while (cur > nthreads)
427	{
428	end_thread ();
429	cur--;
430	}
431
432	while (started > nthreads)
433	{
434	poll_wait ();
435	poll_cb ();
436	}
437	}
438		655
439	int	656	int
440	max_outstanding(nreqs)	657	max_outstanding(nreqs)
441	int nreqs	658	int nreqs
442	PROTOTYPE: $	659	PROTOTYPE: $
…		…
451	int mode	668	int mode
452	SV * callback	669	SV * callback
453	PROTOTYPE: $$$;$	670	PROTOTYPE: $$$;$
454	CODE:	671	CODE:
455	{	672	{
456	aio_req req;	673	dREQ;
457
458	Newz (0, req, 1, aio_cb);
459
460	if (!req)
461	croak ("out of memory during aio_req allocation");
462		674
463	req->type = REQ_OPEN;	675	req->type = REQ_OPEN;
464	req->data = newSVsv (pathname);	676	req->data = newSVsv (pathname);
465	req->dataptr = SvPV_nolen (req->data);	677	req->dataptr = SvPVbyte_nolen (req->data);
466	req->fd = flags;	678	req->fd = flags;
467	req->mode = mode;	679	req->mode = mode;
468	req->callback = SvREFCNT_inc (callback);
469		680
470	send_req (req);	681	send_req (req);
471	}	682	}
472		683
473	void	684	void
…		…
479	aio_close = REQ_CLOSE	690	aio_close = REQ_CLOSE
480	aio_fsync = REQ_FSYNC	691	aio_fsync = REQ_FSYNC
481	aio_fdatasync = REQ_FDATASYNC	692	aio_fdatasync = REQ_FDATASYNC
482	CODE:	693	CODE:
483	{	694	{
484	aio_req req;	695	dREQ;
485
486	Newz (0, req, 1, aio_cb);
487
488	if (!req)
489	croak ("out of memory during aio_req allocation");
490		696
491	req->type = ix;	697	req->type = ix;
492	req->fh = newSVsv (fh);	698	req->fh = newSVsv (fh);
493	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	699	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
494	req->callback = SvREFCNT_inc (callback);
495		700
496	send_req (req);	701	send_req (req);
497	}	702	}
498		703
499	void	704	void
500	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	705	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
501	SV * fh	706	SV * fh
502	UV offset	707	UV offset
503	IV length	708	UV length
504	SV * data	709	SV * data
505	IV dataoffset	710	UV dataoffset
506	SV * callback	711	SV * callback
507	ALIAS:	712	ALIAS:
508	aio_read = REQ_READ	713	aio_read = REQ_READ
509	aio_write = REQ_WRITE	714	aio_write = REQ_WRITE
510	PROTOTYPE: $$$$$;$	715	PROTOTYPE: $$$$$;$
511	CODE:	716	CODE:
512	{	717	{
513	aio_req req;	718	aio_req req;
514	STRLEN svlen;	719	STRLEN svlen;
515	char *svptr = SvPV (data, svlen);	720	char *svptr = SvPVbyte (data, svlen);
516		721
517	SvUPGRADE (data, SVt_PV);	722	SvUPGRADE (data, SVt_PV);
518	SvPOK_on (data);	723	SvPOK_on (data);
519		724
520	if (dataoffset < 0)	725	if (dataoffset < 0)
…		…
536	}	741	}
537		742
538	if (length < 0)	743	if (length < 0)
539	croak ("length must not be negative");	744	croak ("length must not be negative");
540		745
541	Newz (0, req, 1, aio_cb);	746	{
		747	dREQ;
542		748
543	if (!req)
544	croak ("out of memory during aio_req allocation");
545
546	req->type = ix;	749	req->type = ix;
547	req->fh = newSVsv (fh);	750	req->fh = newSVsv (fh);
548	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	751	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
549	: IoOFP (sv_2io (fh)));	752	: IoOFP (sv_2io (fh)));
550	req->offset = offset;	753	req->offset = offset;
		754	req->length = length;
		755	req->data = SvREFCNT_inc (data);
		756	req->dataptr = (char *)svptr + dataoffset;
		757
		758	if (!SvREADONLY (data))
		759	{
		760	SvREADONLY_on (data);
		761	req->data2ptr = (void *)data;
		762	}
		763
		764	send_req (req);
		765	}
		766	}
		767
		768	void
		769	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		770	SV * out_fh
		771	SV * in_fh
		772	UV in_offset
		773	UV length
		774	SV * callback
		775	PROTOTYPE: $$$$;$
		776	CODE:
		777	{
		778	dREQ;
		779
		780	req->type = REQ_SENDFILE;
		781	req->fh = newSVsv (out_fh);
		782	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		783	req->fh2 = newSVsv (in_fh);
		784	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		785	req->offset = in_offset;
551	req->length = length;	786	req->length = length;
552	req->data = SvREFCNT_inc (data);
553	req->dataptr = (char *)svptr + dataoffset;
554	req->callback = SvREFCNT_inc (callback);
555		787
556	send_req (req);	788	send_req (req);
557	}	789	}
558		790
559	void	791	void
…		…
563	IV length	795	IV length
564	SV * callback	796	SV * callback
565	PROTOTYPE: $$$;$	797	PROTOTYPE: $$$;$
566	CODE:	798	CODE:
567	{	799	{
568	aio_req req;	800	dREQ;
569
570	if (length < 0)
571	croak ("length must not be negative");
572
573	Newz (0, req, 1, aio_cb);
574
575	if (!req)
576	croak ("out of memory during aio_req allocation");
577		801
578	req->type = REQ_READAHEAD;	802	req->type = REQ_READAHEAD;
579	req->fh = newSVsv (fh);	803	req->fh = newSVsv (fh);
580	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	804	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
581	req->offset = offset;	805	req->offset = offset;
582	req->length = length;	806	req->length = length;
583	req->callback = SvREFCNT_inc (callback);
584		807
585	send_req (req);	808	send_req (req);
586	}	809	}
587		810
588	void	811	void
…		…
592	ALIAS:	815	ALIAS:
593	aio_stat = REQ_STAT	816	aio_stat = REQ_STAT
594	aio_lstat = REQ_LSTAT	817	aio_lstat = REQ_LSTAT
595	CODE:	818	CODE:
596	{	819	{
597	aio_req req;	820	dREQ;
598
599	Newz (0, req, 1, aio_cb);
600
601	if (!req)
602	croak ("out of memory during aio_req allocation");
603		821
604	New (0, req->statdata, 1, Stat_t);	822	New (0, req->statdata, 1, Stat_t);
605
606	if (!req->statdata)	823	if (!req->statdata)
		824	{
		825	free_req (req);
607	croak ("out of memory during aio_req->statdata allocation");	826	croak ("out of memory during aio_req->statdata allocation");
		827	}
608		828
609	if (SvPOK (fh_or_path))	829	if (SvPOK (fh_or_path))
610	{	830	{
611	req->type = ix;	831	req->type = ix;
612	req->data = newSVsv (fh_or_path);	832	req->data = newSVsv (fh_or_path);
613	req->dataptr = SvPV_nolen (req->data);	833	req->dataptr = SvPVbyte_nolen (req->data);
614	}	834	}
615	else	835	else
616	{	836	{
617	req->type = REQ_FSTAT;	837	req->type = REQ_FSTAT;
618	req->fh = newSVsv (fh_or_path);	838	req->fh = newSVsv (fh_or_path);
619	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	839	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
620	}	840	}
621		841
622	req->callback = SvREFCNT_inc (callback);
623
624	send_req (req);	842	send_req (req);
625	}	843	}
626		844
627	void	845	void
628	aio_unlink(pathname,callback=&PL_sv_undef)	846	aio_unlink(pathname,callback=&PL_sv_undef)
629	SV * pathname	847	SV * pathname
630	SV * callback	848	SV * callback
		849	ALIAS:
		850	aio_unlink = REQ_UNLINK
		851	aio_rmdir = REQ_RMDIR
631	CODE:	852	CODE:
632	{	853	{
633	aio_req req;	854	dREQ;
634		855
635	Newz (0, req, 1, aio_cb);	856	req->type = ix;
		857	req->data = newSVsv (pathname);
		858	req->dataptr = SvPVbyte_nolen (req->data);
636		859
637	if (!req)	860	send_req (req);
638	croak ("out of memory during aio_req allocation");	861	}
		862
		863	void
		864	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		865	SV * oldpath
		866	SV * newpath
		867	SV * callback
		868	CODE:
		869	{
		870	dREQ;
639		871
640	req->type = REQ_UNLINK;	872	req->type = REQ_SYMLINK;
		873	req->fh = newSVsv (oldpath);
		874	req->data2ptr = SvPVbyte_nolen (req->fh);
641	req->data = newSVsv (pathname);	875	req->data = newSVsv (newpath);
642	req->dataptr = SvPV_nolen (req->data);	876	req->dataptr = SvPVbyte_nolen (req->data);
643	req->callback = SvREFCNT_inc (callback);
644		877
645	send_req (req);	878	send_req (req);
646	}	879	}
647		880
648	void	881	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.19 by root, Sun Jul 31 19:04:45 2005 UTC vs. Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.19 by root, Sun Jul 31 19:04:45 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC