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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.17 by root, Sun Jul 31 18:45:48 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 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
5	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
6		11
7	#include <sys/types.h>	12	#include <sys/types.h>
8	#include <sys/stat.h>	13	#include <sys/stat.h>
9		14
10	#include <unistd.h>	15	#include <unistd.h>
11	#include <fcntl.h>	16	#include <fcntl.h>
12	#include <signal.h>	17	#include <signal.h>
13	#include <sched.h>	18	#include <sched.h>
14		19
15	#include <pthread.h>	20	#if HAVE_SENDFILE
16		21	# if __linux
17	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
18	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
19	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
20		34
21	#if __ia64	35	#if __ia64
22	# define STACKSIZE 65536	36	# define STACKSIZE 65536
23	#else	37	#else
24	# define STACKSIZE 4096	38	# define STACKSIZE 4096
26		40
27	enum {	41	enum {
28	REQ_QUIT,	42	REQ_QUIT,
29	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
30	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
32	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
33	};	50	};
34		51
35	typedef struct aio_cb {	52	typedef struct aio_cb {
36	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
37		54
38	int type;	55	int type;
39		56
40	int fd;	57	int fd, fd2;
41	off_t offset;	58	off_t offset;
42	size_t length;	59	size_t length;
43	ssize_t result;	60	ssize_t result;
44	mode_t mode; /* open */	61	mode_t mode; /* open */
45	int errorno;	62	int errorno;
46	SV data, callback, *fh;	63	SV data, callback;
47	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
48	STRLEN dataoffset;	66	STRLEN dataoffset;
49		67
50	Stat_t *statdata;	68	Stat_t *statdata;
51	} aio_cb;	69	} aio_cb;
52		70
53	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
54		72
55	static int started;	73	static int started, wanted;
56	static volatile int nreqs;	74	static volatile int nreqs;
57	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
58	static int respipe [2];	76	static int respipe [2];
59		77
60	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
61	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63		81
64	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
65	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	}
66		104
67	static void	105	static void
68	poll_wait ()	106	poll_wait ()
69	{	107	{
70	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
80	static int	118	static int
81	poll_cb ()	119	poll_cb ()
82	{	120	{
83	dSP;	121	dSP;
84	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
85	aio_req req, prv;	124	aio_req req;
86		125
87	pthread_mutex_lock (&reslock);	126	for (;;)
88
89	{
90	/* read any signals sent by the worker threads */
91	char buf [32];
92	while (read (respipe [0], buf, 32) > 0)
93	;
94	}
95
96	req = ress;
97	ress = rese = 0;
98
99	pthread_mutex_unlock (&reslock);
100
101	while (req)
102	{	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
103	nreqs--;	151	nreqs--;
104		152
105	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
106	started--;	154	started--;
107	else	155	else
108	{	156	{
109	int errorno = errno;	157	int errorno = errno;
110	errno = req->errorno;	158	errno = req->errorno;
111		159
112	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
113	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
114	+ req->result > 0 ? req->result : 0);
115		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
116	if (req->data)	166	if (req->statdata)
117	SvREFCNT_dec (req->data);
118
119	if (req->fh)
120	SvREFCNT_dec (req->fh);
121
122	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
123	{	167	{
124	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125	PL_laststatval = req->result;	169	PL_laststatval = req->result;
126	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
127
128	Safefree (req->statdata);
129	}	171	}
130		172
131	ENTER;	173	ENTER;
132	PUSHMARK (SP);	174	PUSHMARK (SP);
133	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
150	if (SvOK (req->callback))	192	if (SvOK (req->callback))
151	{	193	{
152	PUTBACK;	194	PUTBACK;
153	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
154	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
155	}	203	}
156		204
157	LEAVE;	205	LEAVE;
158
159	if (req->callback)
160	SvREFCNT_dec (req->callback);
161		206
162	errno = errorno;	207	errno = errorno;
163	count++;	208	count++;
164	}	209	}
165		210
166	prv = req;	211	free_req (req);
167	req = req->next;
168	Safefree (prv);
169
170	/* TODO: croak on errors? */
171	}	212	}
172		213
173	return count;	214	return count;
174	}	215	}
175		216
…		…
196	}	237	}
197		238
198	static void	239	static void
199	send_req (aio_req req)	240	send_req (aio_req req)
200	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
201	nreqs++;	245	nreqs++;
202		246
203	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
204		248
205	req->next = 0;	249	req->next = 0;
…		…
213	reqe = reqs = req;	257	reqe = reqs = req;
214		258
215	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
216	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
217		261
218	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)
219	{	304	{
220	poll_wait ();	305	poll_wait ();
221	poll_cb ();	306	poll_cb ();
222	}	307	}
223	}	308	}
224		309
225	static void	310	static void create_pipe ()
226	end_thread (void)
227	{	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	{
228	aio_req req;	336	aio_req prv;
229	New (0, req, 1, aio_cb);
230	req->type = REQ_QUIT;
231		337
232	send_req (req);	338	started = 0;
233	}
234		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	/*****************************************************************************/
235	/* work around various missing functions */	366	/* work around various missing functions */
236		367
237	#if !HAVE_PREADWRITE	368	#if !HAVE_PREADWRITE
238	# define pread aio_pread	369	# define pread aio_pread
239	# define pwrite aio_pwrite	370	# define pwrite aio_pwrite
…		…
301		432
302	errno = 0;	433	errno = 0;
303	}	434	}
304	#endif	435	#endif
305		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
306	static void *	537	static void *
307	aio_proc (void *thr_arg)	538	aio_proc (void *thr_arg)
308	{	539	{
309	aio_req req;	540	aio_req req;
310	int type;	541	int type;
…		…
339	{	570	{
340	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;
341	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;
342		573
343	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;
344		576
345	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	577	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
346	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	578	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
347	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	579	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
348		580
349	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;
350	case REQ_CLOSE: req->result = close (req->fd); break;	582	case REQ_CLOSE: req->result = close (req->fd); break;
351	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;
352		586
353	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	587	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
354	case REQ_FSYNC: req->result = fsync (req->fd); break;	588	case REQ_FSYNC: req->result = fsync (req->fd); break;
355		589
356	case REQ_QUIT:	590	case REQ_QUIT:
…		…
385	while (type != REQ_QUIT);	619	while (type != REQ_QUIT);
386		620
387	return 0;	621	return 0;
388	}	622	}
389		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
390	MODULE = IO::AIO PACKAGE = IO::AIO	636	MODULE = IO::AIO PACKAGE = IO::AIO
391		637
392	PROTOTYPES: ENABLE	638	PROTOTYPES: ENABLE
393		639
394	BOOT:	640	BOOT:
395	{	641	{
396	if (pipe (respipe))	642	create_pipe ();
397	croak ("unable to initialize result pipe");	643	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
398
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
400	croak ("cannot set result pipe to nonblocking mode");
401
402	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
403	croak ("cannot set result pipe to nonblocking mode");
404	}	644	}
405		645
406	void	646	void
407	min_parallel(nthreads)	647	min_parallel(nthreads)
408	int nthreads	648	int nthreads
409	PROTOTYPE: $	649	PROTOTYPE: $
410	CODE:
411	while (nthreads > started)
412	start_thread ();
413		650
414	void	651	void
415	max_parallel(nthreads)	652	max_parallel(nthreads)
416	int nthreads	653	int nthreads
417	PROTOTYPE: $	654	PROTOTYPE: $
418	CODE:
419	{
420	int cur = started;
421	while (cur > nthreads)
422	{
423	end_thread ();
424	cur--;
425	}
426
427	while (started > nthreads)
428	{
429	poll_wait ();
430	poll_cb ();
431	}
432	}
433		655
434	int	656	int
435	max_outstanding(nreqs)	657	max_outstanding(nreqs)
436	int nreqs	658	int nreqs
437	PROTOTYPE: $	659	PROTOTYPE: $
…		…
446	int mode	668	int mode
447	SV * callback	669	SV * callback
448	PROTOTYPE: $$$;$	670	PROTOTYPE: $$$;$
449	CODE:	671	CODE:
450	{	672	{
451	aio_req req;	673	dREQ;
452
453	Newz (0, req, 1, aio_cb);
454
455	if (!req)
456	croak ("out of memory during aio_req allocation");
457		674
458	req->type = REQ_OPEN;	675	req->type = REQ_OPEN;
459	req->data = newSVsv (pathname);	676	req->data = newSVsv (pathname);
460	req->dataptr = SvPV_nolen (req->data);	677	req->dataptr = SvPVbyte_nolen (req->data);
461	req->fd = flags;	678	req->fd = flags;
462	req->mode = mode;	679	req->mode = mode;
463	req->callback = SvREFCNT_inc (callback);
464		680
465	send_req (req);	681	send_req (req);
466	}	682	}
467		683
468	void	684	void
…		…
474	aio_close = REQ_CLOSE	690	aio_close = REQ_CLOSE
475	aio_fsync = REQ_FSYNC	691	aio_fsync = REQ_FSYNC
476	aio_fdatasync = REQ_FDATASYNC	692	aio_fdatasync = REQ_FDATASYNC
477	CODE:	693	CODE:
478	{	694	{
479	aio_req req;	695	dREQ;
480
481	Newz (0, req, 1, aio_cb);
482
483	if (!req)
484	croak ("out of memory during aio_req allocation");
485		696
486	req->type = ix;	697	req->type = ix;
487	req->fh = newSVsv (fh);	698	req->fh = newSVsv (fh);
488	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	699	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
489	req->callback = SvREFCNT_inc (callback);
490		700
491	send_req (req);	701	send_req (req);
492	}	702	}
493		703
494	void	704	void
495	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	705	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
496	SV * fh	706	SV * fh
497	UV offset	707	UV offset
498	IV length	708	UV length
499	SV * data	709	SV * data
500	IV dataoffset	710	UV dataoffset
501	SV * callback	711	SV * callback
502	ALIAS:	712	ALIAS:
503	aio_read = REQ_READ	713	aio_read = REQ_READ
504	aio_write = REQ_WRITE	714	aio_write = REQ_WRITE
505	PROTOTYPE: $$$$$;$	715	PROTOTYPE: $$$$$;$
506	CODE:	716	CODE:
507	{	717	{
508	aio_req req;	718	aio_req req;
509	STRLEN svlen;	719	STRLEN svlen;
510	char *svptr = SvPV (data, svlen);	720	char *svptr = SvPVbyte (data, svlen);
511		721
512	SvUPGRADE (data, SVt_PV);	722	SvUPGRADE (data, SVt_PV);
513	SvPOK_on (data);	723	SvPOK_on (data);
514		724
515	if (dataoffset < 0)	725	if (dataoffset < 0)
…		…
531	}	741	}
532		742
533	if (length < 0)	743	if (length < 0)
534	croak ("length must not be negative");	744	croak ("length must not be negative");
535		745
536	Newz (0, req, 1, aio_cb);	746	{
		747	dREQ;
537		748
538	if (!req)
539	croak ("out of memory during aio_req allocation");
540
541	req->type = ix;	749	req->type = ix;
542	req->fh = newSVsv (fh);	750	req->fh = newSVsv (fh);
543	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	751	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
544	: IoOFP (sv_2io (fh)));	752	: IoOFP (sv_2io (fh)));
545	req->offset = offset;	753	req->offset = offset;
		754	req->length = length;
		755	req->data = SvREFCNT_inc (data);
		756	req->dataptr = (char *)svptr + dataoffset;
		757
		758	if (!SvREADONLY (data))
		759	{
		760	SvREADONLY_on (data);
		761	req->data2ptr = (void *)data;
		762	}
		763
		764	send_req (req);
		765	}
		766	}
		767
		768	void
		769	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		770	SV * out_fh
		771	SV * in_fh
		772	UV in_offset
		773	UV length
		774	SV * callback
		775	PROTOTYPE: $$$$;$
		776	CODE:
		777	{
		778	dREQ;
		779
		780	req->type = REQ_SENDFILE;
		781	req->fh = newSVsv (out_fh);
		782	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		783	req->fh2 = newSVsv (in_fh);
		784	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		785	req->offset = in_offset;
546	req->length = length;	786	req->length = length;
547	req->data = SvREFCNT_inc (data);
548	req->dataptr = (char *)svptr + dataoffset;
549	req->callback = SvREFCNT_inc (callback);
550		787
551	send_req (req);	788	send_req (req);
552	}	789	}
553		790
554	void	791	void
…		…
558	IV length	795	IV length
559	SV * callback	796	SV * callback
560	PROTOTYPE: $$$;$	797	PROTOTYPE: $$$;$
561	CODE:	798	CODE:
562	{	799	{
563	aio_req req;	800	dREQ;
564
565	if (length < 0)
566	croak ("length must not be negative");
567
568	Newz (0, req, 1, aio_cb);
569
570	if (!req)
571	croak ("out of memory during aio_req allocation");
572		801
573	req->type = REQ_READAHEAD;	802	req->type = REQ_READAHEAD;
574	req->fh = newSVsv (fh);	803	req->fh = newSVsv (fh);
575	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	804	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
576	req->offset = offset;	805	req->offset = offset;
577	req->length = length;	806	req->length = length;
578	req->callback = SvREFCNT_inc (callback);
579		807
580	send_req (req);	808	send_req (req);
581	}	809	}
582		810
583	void	811	void
…		…
587	ALIAS:	815	ALIAS:
588	aio_stat = REQ_STAT	816	aio_stat = REQ_STAT
589	aio_lstat = REQ_LSTAT	817	aio_lstat = REQ_LSTAT
590	CODE:	818	CODE:
591	{	819	{
592	aio_req req;	820	dREQ;
593
594	Newz (0, req, 1, aio_cb);
595
596	if (!req)
597	croak ("out of memory during aio_req allocation");
598		821
599	New (0, req->statdata, 1, Stat_t);	822	New (0, req->statdata, 1, Stat_t);
600
601	if (!req->statdata)	823	if (!req->statdata)
		824	{
		825	free_req (req);
602	croak ("out of memory during aio_req->statdata allocation");	826	croak ("out of memory during aio_req->statdata allocation");
		827	}
603		828
604	if (SvPOK (fh_or_path))	829	if (SvPOK (fh_or_path))
605	{	830	{
606	req->type = ix;	831	req->type = ix;
607	req->data = newSVsv (fh_or_path);	832	req->data = newSVsv (fh_or_path);
608	req->dataptr = SvPV_nolen (req->data);	833	req->dataptr = SvPVbyte_nolen (req->data);
609	}	834	}
610	else	835	else
611	{	836	{
612	req->type = REQ_FSTAT;	837	req->type = REQ_FSTAT;
613	req->fh = newSVsv (fh_or_path);	838	req->fh = newSVsv (fh_or_path);
614	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	839	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
615	}	840	}
616		841
617	req->callback = SvREFCNT_inc (callback);
618
619	send_req (req);	842	send_req (req);
620	}	843	}
621		844
622	void	845	void
623	aio_unlink(pathname,callback=&PL_sv_undef)	846	aio_unlink(pathname,callback=&PL_sv_undef)
624	SV * pathname	847	SV * pathname
625	SV * callback	848	SV * callback
		849	ALIAS:
		850	aio_unlink = REQ_UNLINK
		851	aio_rmdir = REQ_RMDIR
626	CODE:	852	CODE:
627	{	853	{
628	aio_req req;	854	dREQ;
629		855
630	Newz (0, req, 1, aio_cb);	856	req->type = ix;
		857	req->data = newSVsv (pathname);
		858	req->dataptr = SvPVbyte_nolen (req->data);
631		859
632	if (!req)	860	send_req (req);
633	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;
634		871
635	req->type = REQ_UNLINK;	872	req->type = REQ_SYMLINK;
		873	req->fh = newSVsv (oldpath);
		874	req->data2ptr = SvPVbyte_nolen (req->fh);
636	req->data = newSVsv (pathname);	875	req->data = newSVsv (newpath);
637	req->dataptr = SvPV_nolen (req->data);	876	req->dataptr = SvPVbyte_nolen (req->data);
638	req->callback = SvREFCNT_inc (callback);
639		877
640	send_req (req);	878	send_req (req);
641	}	879	}
642		880
643	void	881	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.17 by root, Sun Jul 31 18:45:48 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 1.17 by root, Sun Jul 31 18:45:48 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC