[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 1.34 by root, Tue Aug 23 00:03:14 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	# else
		29	# error sendfile support requested but not available
		30	# endif
		31	#endif
25		32
26	#if __ia64	33	#if __ia64
27	# define STACKSIZE 65536	34	# define STACKSIZE 65536
28	#else	35	#else
29	# define STACKSIZE 4096	36	# define STACKSIZE 4096
31		38
32	enum {	39	enum {
33	REQ_QUIT,	40	REQ_QUIT,
34	REQ_OPEN, REQ_CLOSE,	41	REQ_OPEN, REQ_CLOSE,
35	REQ_READ, REQ_WRITE, REQ_READAHEAD,	42	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		43	REQ_SENDFILE,
36	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	44	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
37	REQ_FSYNC, REQ_FDATASYNC,	45	REQ_FSYNC, REQ_FDATASYNC,
		46	REQ_UNLINK, REQ_RMDIR,
		47	REQ_SYMLINK,
38	};	48	};
39		49
40	typedef struct aio_cb {	50	typedef struct aio_cb {
41	struct aio_cb *volatile next;	51	struct aio_cb *volatile next;
42		52
43	int type;	53	int type;
44		54
45	int fd;	55	int fd, fd2;
46	off_t offset;	56	off_t offset;
47	size_t length;	57	size_t length;
48	ssize_t result;	58	ssize_t result;
49	mode_t mode; /* open */	59	mode_t mode; /* open */
50	int errorno;	60	int errorno;
51	SV data, callback, *fh;	61	SV data, callback;
52	void *dataptr;	62	SV fh, fh2;
		63	void dataptr, data2ptr;
53	STRLEN dataoffset;	64	STRLEN dataoffset;
54		65
55	Stat_t *statdata;	66	Stat_t *statdata;
56	} aio_cb;	67	} aio_cb;
57		68
58	typedef aio_cb *aio_req;	69	typedef aio_cb *aio_req;
59		70
60	static int started;	71	static int started, wanted;
61	static volatile int nreqs;	72	static volatile int nreqs;
62	static int max_outstanding = 1<<30;	73	static int max_outstanding = 1<<30;
63	static int respipe [2];	74	static int respipe [2];
64		75
65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	76	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	77	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	78	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68		79
69	static volatile aio_req reqs, reqe; /* queue start, queue end */	80	static volatile aio_req reqs, reqe; /* queue start, queue end */
70	static volatile aio_req ress, rese; /* queue start, queue end */	81	static volatile aio_req ress, rese; /* queue start, queue end */
		82
		83	static void free_req (aio_req req)
		84	{
		85	if (req->data)
		86	SvREFCNT_dec (req->data);
		87
		88	if (req->fh)
		89	SvREFCNT_dec (req->fh);
		90
		91	if (req->fh2)
		92	SvREFCNT_dec (req->fh2);
		93
		94	if (req->statdata)
		95	Safefree (req->statdata);
		96
		97	if (req->callback)
		98	SvREFCNT_dec (req->callback);
		99
		100	Safefree (req);
		101	}
71		102
72	static void	103	static void
73	poll_wait ()	104	poll_wait ()
74	{	105	{
75	if (nreqs && !ress)	106	if (nreqs && !ress)
…		…
85	static int	116	static int
86	poll_cb ()	117	poll_cb ()
87	{	118	{
88	dSP;	119	dSP;
89	int count = 0;	120	int count = 0;
		121	int do_croak = 0;
90	aio_req req, prv;	122	aio_req req;
91		123
92	pthread_mutex_lock (&reslock);	124	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	{	125	{
		126	pthread_mutex_lock (&reslock);
		127	req = ress;
		128
		129	if (req)
		130	{
		131	ress = req->next;
		132
		133	if (!ress)
		134	{
		135	/* read any signals sent by the worker threads */
		136	char buf [32];
		137	while (read (respipe [0], buf, 32) == 32)
		138	;
		139
		140	rese = 0;
		141	}
		142	}
		143
		144	pthread_mutex_unlock (&reslock);
		145
		146	if (!req)
		147	break;
		148
108	nreqs--;	149	nreqs--;
109		150
110	if (req->type == REQ_QUIT)	151	if (req->type == REQ_QUIT)
111	started--;	152	started--;
112	else	153	else
113	{	154	{
114	int errorno = errno;	155	int errorno = errno;
115	errno = req->errorno;	156	errno = req->errorno;
116		157
117	if (req->type == REQ_READ)	158	if (req->type == REQ_READ)
118	SvCUR_set (req->data, req->dataoffset	159	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
119	+ req->result > 0 ? req->result : 0);
120		160
		161	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		162	SvREADONLY_off (req->data);
		163
121	if (req->data)	164	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	{	165	{
129	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	166	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
130	PL_laststatval = req->result;	167	PL_laststatval = req->result;
131	PL_statcache = *(req->statdata);	168	PL_statcache = *(req->statdata);
132
133	Safefree (req->statdata);
134	}	169	}
135		170
136	ENTER;	171	ENTER;
137	PUSHMARK (SP);	172	PUSHMARK (SP);
138	XPUSHs (sv_2mortal (newSViv (req->result)));	173	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
155	if (SvOK (req->callback))	190	if (SvOK (req->callback))
156	{	191	{
157	PUTBACK;	192	PUTBACK;
158	call_sv (req->callback, G_VOID \| G_EVAL);	193	call_sv (req->callback, G_VOID \| G_EVAL);
159	SPAGAIN;	194	SPAGAIN;
		195
		196	if (SvTRUE (ERRSV))
		197	{
		198	free_req (req);
		199	croak (0);
		200	}
160	}	201	}
161		202
162	LEAVE;	203	LEAVE;
163
164	if (req->callback)
165	SvREFCNT_dec (req->callback);
166		204
167	errno = errorno;	205	errno = errorno;
168	count++;	206	count++;
169	}	207	}
170		208
171	prv = req;	209	free_req (req);
172	req = req->next;
173	Safefree (prv);
174
175	/* TODO: croak on errors? */
176	}	210	}
177		211
178	return count;	212	return count;
179	}	213	}
180		214
…		…
201	}	235	}
202		236
203	static void	237	static void
204	send_req (aio_req req)	238	send_req (aio_req req)
205	{	239	{
		240	while (started < wanted && nreqs >= started)
		241	start_thread ();
		242
206	nreqs++;	243	nreqs++;
207		244
208	pthread_mutex_lock (&reqlock);	245	pthread_mutex_lock (&reqlock);
209		246
210	req->next = 0;	247	req->next = 0;
…		…
218	reqe = reqs = req;	255	reqe = reqs = req;
219		256
220	pthread_cond_signal (&reqwait);	257	pthread_cond_signal (&reqwait);
221	pthread_mutex_unlock (&reqlock);	258	pthread_mutex_unlock (&reqlock);
222		259
223	while (nreqs > max_outstanding)	260	if (nreqs > max_outstanding)
		261	for (;;)
		262	{
		263	poll_cb ();
		264
		265	if (nreqs <= max_outstanding)
		266	break;
		267
		268	poll_wait ();
		269	}
		270	}
		271
		272	static void
		273	end_thread (void)
		274	{
		275	aio_req req;
		276	Newz (0, req, 1, aio_cb);
		277	req->type = REQ_QUIT;
		278
		279	send_req (req);
		280	}
		281
		282	static void min_parallel (int nthreads)
		283	{
		284	if (wanted < nthreads)
		285	wanted = nthreads;
		286	}
		287
		288	static void max_parallel (int nthreads)
		289	{
		290	int cur = started;
		291
		292	if (wanted > nthreads)
		293	wanted = nthreads;
		294
		295	while (cur > wanted)
		296	{
		297	end_thread ();
		298	cur--;
		299	}
		300
		301	while (started > wanted)
224	{	302	{
225	poll_wait ();	303	poll_wait ();
226	poll_cb ();	304	poll_cb ();
227	}	305	}
228	}	306	}
229		307
230	static void	308	static void create_pipe ()
231	end_thread (void)
232	{	309	{
		310	if (pipe (respipe))
		311	croak ("unable to initialize result pipe");
		312
		313	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		314	croak ("cannot set result pipe to nonblocking mode");
		315
		316	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		317	croak ("cannot set result pipe to nonblocking mode");
		318	}
		319
		320	static void atfork_prepare (void)
		321	{
		322	pthread_mutex_lock (&reqlock);
		323	pthread_mutex_lock (&reslock);
		324	}
		325
		326	static void atfork_parent (void)
		327	{
		328	pthread_mutex_unlock (&reslock);
		329	pthread_mutex_unlock (&reqlock);
		330	}
		331
		332	static void atfork_child (void)
		333	{
233	aio_req req;	334	aio_req prv;
234	New (0, req, 1, aio_cb);
235	req->type = REQ_QUIT;
236		335
237	send_req (req);	336	started = 0;
238	}
239		337
		338	while (reqs)
		339	{
		340	prv = reqs;
		341	reqs = prv->next;
		342	free_req (prv);
		343	}
		344
		345	reqs = reqe = 0;
		346
		347	while (ress)
		348	{
		349	prv = ress;
		350	ress = prv->next;
		351	free_req (prv);
		352	}
		353
		354	ress = rese = 0;
		355
		356	close (respipe [0]);
		357	close (respipe [1]);
		358	create_pipe ();
		359
		360	atfork_parent ();
		361	}
		362
		363	/*****************************************************************************/
240	/* work around various missing functions */	364	/* work around various missing functions */
241		365
242	#if !HAVE_PREADWRITE	366	#if !HAVE_PREADWRITE
243	# define pread aio_pread	367	# define pread aio_pread
244	# define pwrite aio_pwrite	368	# define pwrite aio_pwrite
…		…
306		430
307	errno = 0;	431	errno = 0;
308	}	432	}
309	#endif	433	#endif
310		434
		435	/* sendfile always needs emulation */
		436	static ssize_t
		437	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		438	{
		439	ssize_t res;
		440
		441	if (!count)
		442	return 0;
		443
		444	#if __linux
		445	res = sendfile (ofd, ifd, &offset, count);
		446
		447	#elif __freebsd
		448	/*
		449	* Of course, the freebsd sendfile is a dire hack with no thoughts
		450	* wasted on making it similar to other i/o functions.
		451	*/
		452	{
		453	off_t sbytes;
		454	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		455
		456	if (!res && errno == EAGAIN)
		457	/* maybe on others, too, as usual, the manpage leaves you guessing */
		458	res = sbytes;
		459	}
		460
		461	#elif __hpux
		462	res = sendfile (ofd, ifd, offset, count, 0, 0);
		463
		464	#else
		465	res = -1;
		466	errno = ENOSYS;
		467	#endif
		468
		469	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		470	{
		471	/* emulate sendfile. this is a major pain in the ass */
		472	char *buf = malloc (4096);
		473	res = 0;
		474
		475	for (;;)
		476	{
		477	ssize_t cnt;
		478
		479	cnt = pread (ifd, buf, 4096, offset);
		480
		481	if (cnt <= 0)
		482	{
		483	if (cnt && !res) res = -1;
		484	break;
		485	}
		486
		487	cnt = write (ofd, buf, cnt);
		488
		489	if (cnt <= 0)
		490	{
		491	if (cnt && !res) res = -1;
		492	break;
		493	}
		494
		495	offset += cnt;
		496	res += cnt;
		497	}
		498
		499	{
		500	int errorno = errno;
		501	free (buf);
		502	errno = errorno;
		503	}
		504	}
		505
		506	return res;
		507	}
		508
		509	/*****************************************************************************/
		510
311	static void *	511	static void *
312	aio_proc (void *thr_arg)	512	aio_proc (void *thr_arg)
313	{	513	{
314	aio_req req;	514	aio_req req;
315	int type;	515	int type;
…		…
344	{	544	{
345	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	545	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;	546	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
347		547
348	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	548	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		549	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
349		550
350	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	551	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
351	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	552	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
352	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	553	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
353		554
354	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	555	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
355	case REQ_CLOSE: req->result = close (req->fd); break;	556	case REQ_CLOSE: req->result = close (req->fd); break;
356	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	557	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		558	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		559	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
357		560
358	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	561	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
359	case REQ_FSYNC: req->result = fsync (req->fd); break;	562	case REQ_FSYNC: req->result = fsync (req->fd); break;
360		563
361	case REQ_QUIT:	564	case REQ_QUIT:
…		…
390	while (type != REQ_QUIT);	593	while (type != REQ_QUIT);
391		594
392	return 0;	595	return 0;
393	}	596	}
394		597
		598	#define dREQ \
		599	aio_req req; \
		600	\
		601	if (SvOK (callback) && !SvROK (callback)) \
		602	croak ("clalback must be undef or of reference type"); \
		603	\
		604	Newz (0, req, 1, aio_cb); \
		605	if (!req) \
		606	croak ("out of memory during aio_req allocation"); \
		607	\
		608	req->callback = newSVsv (callback);
		609
395	MODULE = IO::AIO PACKAGE = IO::AIO	610	MODULE = IO::AIO PACKAGE = IO::AIO
396		611
397	PROTOTYPES: ENABLE	612	PROTOTYPES: ENABLE
398		613
399	BOOT:	614	BOOT:
400	{	615	{
401	if (pipe (respipe))	616	create_pipe ();
402	croak ("unable to initialize result pipe");	617	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	}	618	}
410		619
411	void	620	void
412	min_parallel(nthreads)	621	min_parallel(nthreads)
413	int nthreads	622	int nthreads
414	PROTOTYPE: $	623	PROTOTYPE: $
415	CODE:
416	while (nthreads > started)
417	start_thread ();
418		624
419	void	625	void
420	max_parallel(nthreads)	626	max_parallel(nthreads)
421	int nthreads	627	int nthreads
422	PROTOTYPE: $	628	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		629
439	int	630	int
440	max_outstanding(nreqs)	631	max_outstanding(nreqs)
441	int nreqs	632	int nreqs
442	PROTOTYPE: $	633	PROTOTYPE: $
…		…
451	int mode	642	int mode
452	SV * callback	643	SV * callback
453	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
454	CODE:	645	CODE:
455	{	646	{
456	aio_req req;	647	dREQ;
457
458	Newz (0, req, 1, aio_cb);
459
460	if (!req)
461	croak ("out of memory during aio_req allocation");
462		648
463	req->type = REQ_OPEN;	649	req->type = REQ_OPEN;
464	req->data = newSVsv (pathname);	650	req->data = newSVsv (pathname);
465	req->dataptr = SvPV_nolen (req->data);	651	req->dataptr = SvPVbyte_nolen (req->data);
466	req->fd = flags;	652	req->fd = flags;
467	req->mode = mode;	653	req->mode = mode;
468	req->callback = SvREFCNT_inc (callback);
469		654
470	send_req (req);	655	send_req (req);
471	}	656	}
472		657
473	void	658	void
…		…
479	aio_close = REQ_CLOSE	664	aio_close = REQ_CLOSE
480	aio_fsync = REQ_FSYNC	665	aio_fsync = REQ_FSYNC
481	aio_fdatasync = REQ_FDATASYNC	666	aio_fdatasync = REQ_FDATASYNC
482	CODE:	667	CODE:
483	{	668	{
484	aio_req req;	669	dREQ;
485
486	Newz (0, req, 1, aio_cb);
487
488	if (!req)
489	croak ("out of memory during aio_req allocation");
490		670
491	req->type = ix;	671	req->type = ix;
492	req->fh = newSVsv (fh);	672	req->fh = newSVsv (fh);
493	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	673	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
494	req->callback = SvREFCNT_inc (callback);
495		674
496	send_req (req);	675	send_req (req);
497	}	676	}
498		677
499	void	678	void
500	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	679	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
501	SV * fh	680	SV * fh
502	UV offset	681	UV offset
503	IV length	682	UV length
504	SV * data	683	SV * data
505	IV dataoffset	684	UV dataoffset
506	SV * callback	685	SV * callback
507	ALIAS:	686	ALIAS:
508	aio_read = REQ_READ	687	aio_read = REQ_READ
509	aio_write = REQ_WRITE	688	aio_write = REQ_WRITE
510	PROTOTYPE: $$$$$;$	689	PROTOTYPE: $$$$$;$
511	CODE:	690	CODE:
512	{	691	{
513	aio_req req;	692	aio_req req;
514	STRLEN svlen;	693	STRLEN svlen;
515	char *svptr = SvPV (data, svlen);	694	char *svptr = SvPVbyte (data, svlen);
516		695
517	SvUPGRADE (data, SVt_PV);	696	SvUPGRADE (data, SVt_PV);
518	SvPOK_on (data);	697	SvPOK_on (data);
519		698
520	if (dataoffset < 0)	699	if (dataoffset < 0)
…		…
536	}	715	}
537		716
538	if (length < 0)	717	if (length < 0)
539	croak ("length must not be negative");	718	croak ("length must not be negative");
540		719
541	Newz (0, req, 1, aio_cb);	720	{
		721	dREQ;
542		722
543	if (!req)
544	croak ("out of memory during aio_req allocation");
545
546	req->type = ix;	723	req->type = ix;
547	req->fh = newSVsv (fh);	724	req->fh = newSVsv (fh);
548	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	725	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
549	: IoOFP (sv_2io (fh)));	726	: IoOFP (sv_2io (fh)));
550	req->offset = offset;	727	req->offset = offset;
		728	req->length = length;
		729	req->data = SvREFCNT_inc (data);
		730	req->dataptr = (char *)svptr + dataoffset;
		731
		732	if (!SvREADONLY (data))
		733	{
		734	SvREADONLY_on (data);
		735	req->data2ptr = (void *)data;
		736	}
		737
		738	send_req (req);
		739	}
		740	}
		741
		742	void
		743	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		744	SV * out_fh
		745	SV * in_fh
		746	UV in_offset
		747	UV length
		748	SV * callback
		749	PROTOTYPE: $$$$;$
		750	CODE:
		751	{
		752	dREQ;
		753
		754	req->type = REQ_SENDFILE;
		755	req->fh = newSVsv (out_fh);
		756	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		757	req->fh2 = newSVsv (in_fh);
		758	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		759	req->offset = in_offset;
551	req->length = length;	760	req->length = length;
552	req->data = SvREFCNT_inc (data);
553	req->dataptr = (char *)svptr + dataoffset;
554	req->callback = SvREFCNT_inc (callback);
555		761
556	send_req (req);	762	send_req (req);
557	}	763	}
558		764
559	void	765	void
…		…
563	IV length	769	IV length
564	SV * callback	770	SV * callback
565	PROTOTYPE: $$$;$	771	PROTOTYPE: $$$;$
566	CODE:	772	CODE:
567	{	773	{
568	aio_req req;	774	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		775
578	req->type = REQ_READAHEAD;	776	req->type = REQ_READAHEAD;
579	req->fh = newSVsv (fh);	777	req->fh = newSVsv (fh);
580	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	778	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
581	req->offset = offset;	779	req->offset = offset;
582	req->length = length;	780	req->length = length;
583	req->callback = SvREFCNT_inc (callback);
584		781
585	send_req (req);	782	send_req (req);
586	}	783	}
587		784
588	void	785	void
…		…
592	ALIAS:	789	ALIAS:
593	aio_stat = REQ_STAT	790	aio_stat = REQ_STAT
594	aio_lstat = REQ_LSTAT	791	aio_lstat = REQ_LSTAT
595	CODE:	792	CODE:
596	{	793	{
597	aio_req req;	794	dREQ;
598
599	Newz (0, req, 1, aio_cb);
600
601	if (!req)
602	croak ("out of memory during aio_req allocation");
603		795
604	New (0, req->statdata, 1, Stat_t);	796	New (0, req->statdata, 1, Stat_t);
605
606	if (!req->statdata)	797	if (!req->statdata)
		798	{
		799	free_req (req);
607	croak ("out of memory during aio_req->statdata allocation");	800	croak ("out of memory during aio_req->statdata allocation");
		801	}
608		802
609	if (SvPOK (fh_or_path))	803	if (SvPOK (fh_or_path))
610	{	804	{
611	req->type = ix;	805	req->type = ix;
612	req->data = newSVsv (fh_or_path);	806	req->data = newSVsv (fh_or_path);
613	req->dataptr = SvPV_nolen (req->data);	807	req->dataptr = SvPVbyte_nolen (req->data);
614	}	808	}
615	else	809	else
616	{	810	{
617	req->type = REQ_FSTAT;	811	req->type = REQ_FSTAT;
618	req->fh = newSVsv (fh_or_path);	812	req->fh = newSVsv (fh_or_path);
619	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	813	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
620	}	814	}
621		815
622	req->callback = SvREFCNT_inc (callback);
623
624	send_req (req);	816	send_req (req);
625	}	817	}
626		818
627	void	819	void
628	aio_unlink(pathname,callback=&PL_sv_undef)	820	aio_unlink(pathname,callback=&PL_sv_undef)
629	SV * pathname	821	SV * pathname
630	SV * callback	822	SV * callback
		823	ALIAS:
		824	aio_unlink = REQ_UNLINK
		825	aio_rmdir = REQ_RMDIR
631	CODE:	826	CODE:
632	{	827	{
633	aio_req req;	828	dREQ;
634		829
635	Newz (0, req, 1, aio_cb);	830	req->type = ix;
		831	req->data = newSVsv (pathname);
		832	req->dataptr = SvPVbyte_nolen (req->data);
636		833
637	if (!req)	834	send_req (req);
638	croak ("out of memory during aio_req allocation");	835	}
		836
		837	void
		838	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		839	SV * oldpath
		840	SV * newpath
		841	SV * callback
		842	CODE:
		843	{
		844	dREQ;
639		845
640	req->type = REQ_UNLINK;	846	req->type = REQ_SYMLINK;
		847	req->fh = newSVsv (oldpath);
		848	req->data2ptr = SvPVbyte_nolen (req->fh);
641	req->data = newSVsv (pathname);	849	req->data = newSVsv (newpath);
642	req->dataptr = SvPV_nolen (req->data);	850	req->dataptr = SvPVbyte_nolen (req->data);
643	req->callback = SvREFCNT_inc (callback);
644		851
645	send_req (req);	852	send_req (req);
646	}	853	}
647		854
648	void	855	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 1.34 by root, Tue Aug 23 00:03:14 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 1.34 by root, Tue Aug 23 00:03:14 2005 UTC