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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.20 by root, Sun Jul 31 19:08:39 2005 UTC vs.
Revision 1.32 by root, Mon Aug 22 23:20:37 2005 UTC

…		…
4	#include "EXTERN.h"	4	#include "EXTERN.h"
5	#include "perl.h"	5	#include "perl.h"
6	#include "XSUB.h"	6	#include "XSUB.h"
7		7
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
9		11
10	#include <sys/types.h>	12	#include <sys/types.h>
11	#include <sys/stat.h>	13	#include <sys/stat.h>
12		14
13	#include <unistd.h>	15	#include <unistd.h>
14	#include <fcntl.h>	16	#include <fcntl.h>
15	#include <signal.h>	17	#include <signal.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
18	#include <pthread.h>	20	#if HAVE_SENDFILE
19		21	# if __linux
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
22	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	# endif
		29	#endif
23		30
24	#if __ia64	31	#if __ia64
25	# define STACKSIZE 65536	32	# define STACKSIZE 65536
26	#else	33	#else
27	# define STACKSIZE 4096	34	# define STACKSIZE 4096
…		…
29		36
30	enum {	37	enum {
31	REQ_QUIT,	38	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	39	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	40	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		41	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	42	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	43	REQ_FSYNC, REQ_FDATASYNC,
		44	REQ_UNLINK, REQ_RMDIR,
		45	REQ_SYMLINK,
36	};	46	};
37		47
38	typedef struct aio_cb {	48	typedef struct aio_cb {
39	struct aio_cb *volatile next;	49	struct aio_cb *volatile next;
40		50
41	int type;	51	int type;
42		52
43	int fd;	53	int fd, fd2;
44	off_t offset;	54	off_t offset;
45	size_t length;	55	size_t length;
46	ssize_t result;	56	ssize_t result;
47	mode_t mode; /* open */	57	mode_t mode; /* open */
48	int errorno;	58	int errorno;
49	SV data, callback, *fh;	59	SV data, callback;
50	void *dataptr;	60	SV fh, fh2;
		61	void dataptr, data2ptr;
51	STRLEN dataoffset;	62	STRLEN dataoffset;
52		63
53	Stat_t *statdata;	64	Stat_t *statdata;
54	} aio_cb;	65	} aio_cb;
55		66
56	typedef aio_cb *aio_req;	67	typedef aio_cb *aio_req;
57		68
58	static int started;	69	static int started, wanted;
59	static volatile int nreqs;	70	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	71	static int max_outstanding = 1<<30;
61	static int respipe [2];	72	static int respipe [2];
62		73
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	74	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	75	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	76	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		77
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	78	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	79	static volatile aio_req ress, rese; /* queue start, queue end */
		80
		81	static void free_req (aio_req req)
		82	{
		83	if (req->data)
		84	SvREFCNT_dec (req->data);
		85
		86	if (req->fh)
		87	SvREFCNT_dec (req->fh);
		88
		89	if (req->fh2)
		90	SvREFCNT_dec (req->fh2);
		91
		92	if (req->statdata)
		93	Safefree (req->statdata);
		94
		95	if (req->callback)
		96	SvREFCNT_dec (req->callback);
		97
		98	Safefree (req);
		99	}
69		100
70	static void	101	static void
71	poll_wait ()	102	poll_wait ()
72	{	103	{
73	if (nreqs && !ress)	104	if (nreqs && !ress)
…		…
83	static int	114	static int
84	poll_cb ()	115	poll_cb ()
85	{	116	{
86	dSP;	117	dSP;
87	int count = 0;	118	int count = 0;
		119	int do_croak = 0;
88	aio_req req, prv;	120	aio_req req;
89		121
90	pthread_mutex_lock (&reslock);	122	for (;;)
91
92	{
93	/* read any signals sent by the worker threads */
94	char buf [32];
95	while (read (respipe [0], buf, 32) > 0)
96	;
97	}
98
99	req = ress;
100	ress = rese = 0;
101
102	pthread_mutex_unlock (&reslock);
103
104	while (req)
105	{	123	{
		124	pthread_mutex_lock (&reslock);
		125	req = ress;
		126
		127	if (req)
		128	{
		129	ress = req->next;
		130
		131	if (!ress)
		132	{
		133	/* read any signals sent by the worker threads */
		134	char buf [32];
		135	while (read (respipe [0], buf, 32) == 32)
		136	;
		137
		138	rese = 0;
		139	}
		140	}
		141
		142	pthread_mutex_unlock (&reslock);
		143
		144	if (!req)
		145	break;
		146
106	nreqs--;	147	nreqs--;
107		148
108	if (req->type == REQ_QUIT)	149	if (req->type == REQ_QUIT)
109	started--;	150	started--;
110	else	151	else
111	{	152	{
112	int errorno = errno;	153	int errorno = errno;
113	errno = req->errorno;	154	errno = req->errorno;
114		155
115	if (req->type == REQ_READ)	156	if (req->type == REQ_READ)
116	SvCUR_set (req->data, req->dataoffset	157	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
117	+ req->result > 0 ? req->result : 0);
118		158
		159	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		160	SvREADONLY_off (req->data);
		161
119	if (req->data)	162	if (req->statdata)
120	SvREFCNT_dec (req->data);
121
122	if (req->fh)
123	SvREFCNT_dec (req->fh);
124
125	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
126	{	163	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	164	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	165	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	166	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	167	}
133		168
134	ENTER;	169	ENTER;
135	PUSHMARK (SP);	170	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	171	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
153	if (SvOK (req->callback))	188	if (SvOK (req->callback))
154	{	189	{
155	PUTBACK;	190	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	191	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	192	SPAGAIN;
		193
		194	if (SvTRUE (ERRSV))
		195	{
		196	free_req (req);
		197	croak (0);
		198	}
158	}	199	}
159		200
160	LEAVE;	201	LEAVE;
161
162	if (req->callback)
163	SvREFCNT_dec (req->callback);
164		202
165	errno = errorno;	203	errno = errorno;
166	count++;	204	count++;
167	}	205	}
168		206
169	prv = req;	207	free_req (req);
170	req = req->next;
171	Safefree (prv);
172
173	/* TODO: croak on errors? */
174	}	208	}
175		209
176	return count;	210	return count;
177	}	211	}
178		212
…		…
199	}	233	}
200		234
201	static void	235	static void
202	send_req (aio_req req)	236	send_req (aio_req req)
203	{	237	{
		238	while (started < wanted && nreqs >= started)
		239	start_thread ();
		240
204	nreqs++;	241	nreqs++;
205		242
206	pthread_mutex_lock (&reqlock);	243	pthread_mutex_lock (&reqlock);
207		244
208	req->next = 0;	245	req->next = 0;
…		…
216	reqe = reqs = req;	253	reqe = reqs = req;
217		254
218	pthread_cond_signal (&reqwait);	255	pthread_cond_signal (&reqwait);
219	pthread_mutex_unlock (&reqlock);	256	pthread_mutex_unlock (&reqlock);
220		257
221	while (nreqs > max_outstanding)	258	if (nreqs > max_outstanding)
		259	for (;;)
		260	{
		261	poll_cb ();
		262
		263	if (nreqs <= max_outstanding)
		264	break;
		265
		266	poll_wait ();
		267	}
		268	}
		269
		270	static void
		271	end_thread (void)
		272	{
		273	aio_req req;
		274	Newz (0, req, 1, aio_cb);
		275	req->type = REQ_QUIT;
		276
		277	send_req (req);
		278	}
		279
		280	static void min_parallel (int nthreads)
		281	{
		282	if (wanted < nthreads)
		283	wanted = nthreads;
		284	}
		285
		286	static void max_parallel (int nthreads)
		287	{
		288	int cur = started;
		289
		290	if (wanted > nthreads)
		291	wanted = nthreads;
		292
		293	while (cur > wanted)
		294	{
		295	end_thread ();
		296	cur--;
		297	}
		298
		299	while (started > wanted)
222	{	300	{
223	poll_wait ();	301	poll_wait ();
224	poll_cb ();	302	poll_cb ();
225	}	303	}
226	}	304	}
227		305
228	static void	306	static void create_pipe ()
229	end_thread (void)
230	{	307	{
		308	if (pipe (respipe))
		309	croak ("unable to initialize result pipe");
		310
		311	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		312	croak ("cannot set result pipe to nonblocking mode");
		313
		314	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		315	croak ("cannot set result pipe to nonblocking mode");
		316	}
		317
		318	static void atfork_prepare (void)
		319	{
		320	pthread_mutex_lock (&reqlock);
		321	pthread_mutex_lock (&reslock);
		322	}
		323
		324	static void atfork_parent (void)
		325	{
		326	pthread_mutex_unlock (&reslock);
		327	pthread_mutex_unlock (&reqlock);
		328	}
		329
		330	static void atfork_child (void)
		331	{
231	aio_req req;	332	aio_req prv;
232	New (0, req, 1, aio_cb);
233	req->type = REQ_QUIT;
234		333
235	send_req (req);	334	started = 0;
236	}
237		335
		336	while (reqs)
		337	{
		338	prv = reqs;
		339	reqs = prv->next;
		340	free_req (prv);
		341	}
		342
		343	reqs = reqe = 0;
		344
		345	while (ress)
		346	{
		347	prv = ress;
		348	ress = prv->next;
		349	free_req (prv);
		350	}
		351
		352	ress = rese = 0;
		353
		354	close (respipe [0]);
		355	close (respipe [1]);
		356	create_pipe ();
		357
		358	atfork_parent ();
		359	}
		360
		361	/*****************************************************************************/
238	/* work around various missing functions */	362	/* work around various missing functions */
239		363
240	#if !HAVE_PREADWRITE	364	#if !HAVE_PREADWRITE
241	# define pread aio_pread	365	# define pread aio_pread
242	# define pwrite aio_pwrite	366	# define pwrite aio_pwrite
…		…
304		428
305	errno = 0;	429	errno = 0;
306	}	430	}
307	#endif	431	#endif
308		432
		433	/* sendfile always needs emulation */
		434	static ssize_t
		435	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		436	{
		437	ssize_t res;
		438
		439	if (!count)
		440	return 0;
		441
		442	#if __linux
		443	res = sendfile (ofd, ifd, &offset, count);
		444
		445	#elif __freebsd
		446	/*
		447	* Of course, the freebsd sendfile is a dire hack with no thoughts
		448	* wasted on making it similar to other i/o functions.
		449	*/
		450	{
		451	off_t sbytes;
		452	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		453
		454	if (!res && errno == EAGAIN)
		455	res = sbytes;
		456	}
		457
		458	#elif __hpux
		459	res = sendfile (ofd, ifd, offset, count, 0, 0);
		460
		461	#else
		462	res = -1;
		463	errno = ENOSYS;
		464	#endif
		465
		466	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		467	{
		468	/* emulate sendfile. this is a major pain in the ass */
		469	char *buf = malloc (4096);
		470	res = 0;
		471
		472	for (;;)
		473	{
		474	ssize_t cnt;
		475
		476	cnt = pread (ifd, buf, 4096, offset);
		477
		478	if (cnt <= 0)
		479	{
		480	if (cnt && !res) res = -1;
		481	break;
		482	}
		483
		484	cnt = write (ofd, buf, cnt);
		485
		486	if (cnt <= 0)
		487	{
		488	if (cnt && !res) res = -1;
		489	break;
		490	}
		491
		492	offset += cnt;
		493	res += cnt;
		494	}
		495
		496	{
		497	int errorno = errno;
		498	free (buf);
		499	errno = errorno;
		500	}
		501	}
		502
		503	return res;
		504	}
		505
		506	/*****************************************************************************/
		507
309	static void *	508	static void *
310	aio_proc (void *thr_arg)	509	aio_proc (void *thr_arg)
311	{	510	{
312	aio_req req;	511	aio_req req;
313	int type;	512	int type;
…		…
342	{	541	{
343	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	542	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
344	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	543	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
345		544
346	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	545	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		546	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
347		547
348	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	548	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
349	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	549	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
350	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	550	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
351		551
352	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	552	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
353	case REQ_CLOSE: req->result = close (req->fd); break;	553	case REQ_CLOSE: req->result = close (req->fd); break;
354	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	554	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		555	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		556	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
355		557
356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	558	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
357	case REQ_FSYNC: req->result = fsync (req->fd); break;	559	case REQ_FSYNC: req->result = fsync (req->fd); break;
358		560
359	case REQ_QUIT:	561	case REQ_QUIT:
…		…
388	while (type != REQ_QUIT);	590	while (type != REQ_QUIT);
389		591
390	return 0;	592	return 0;
391	}	593	}
392		594
		595	#define dREQ \
		596	aio_req req; \
		597	\
		598	if (SvOK (callback) && !SvROK (callback)) \
		599	croak ("clalback must be undef or of reference type"); \
		600	\
		601	Newz (0, req, 1, aio_cb); \
		602	if (!req) \
		603	croak ("out of memory during aio_req allocation"); \
		604	\
		605	req->callback = newSVsv (callback);
		606
393	MODULE = IO::AIO PACKAGE = IO::AIO	607	MODULE = IO::AIO PACKAGE = IO::AIO
394		608
395	PROTOTYPES: ENABLE	609	PROTOTYPES: ENABLE
396		610
397	BOOT:	611	BOOT:
398	{	612	{
399	if (pipe (respipe))	613	create_pipe ();
400	croak ("unable to initialize result pipe");	614	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
401
402	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
403	croak ("cannot set result pipe to nonblocking mode");
404
405	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
406	croak ("cannot set result pipe to nonblocking mode");
407	}	615	}
408		616
409	void	617	void
410	min_parallel(nthreads)	618	min_parallel(nthreads)
411	int nthreads	619	int nthreads
412	PROTOTYPE: $	620	PROTOTYPE: $
413	CODE:
414	while (nthreads > started)
415	start_thread ();
416		621
417	void	622	void
418	max_parallel(nthreads)	623	max_parallel(nthreads)
419	int nthreads	624	int nthreads
420	PROTOTYPE: $	625	PROTOTYPE: $
421	CODE:
422	{
423	int cur = started;
424	while (cur > nthreads)
425	{
426	end_thread ();
427	cur--;
428	}
429
430	while (started > nthreads)
431	{
432	poll_wait ();
433	poll_cb ();
434	}
435	}
436		626
437	int	627	int
438	max_outstanding(nreqs)	628	max_outstanding(nreqs)
439	int nreqs	629	int nreqs
440	PROTOTYPE: $	630	PROTOTYPE: $
…		…
449	int mode	639	int mode
450	SV * callback	640	SV * callback
451	PROTOTYPE: $$$;$	641	PROTOTYPE: $$$;$
452	CODE:	642	CODE:
453	{	643	{
454	aio_req req;	644	dREQ;
455
456	Newz (0, req, 1, aio_cb);
457
458	if (!req)
459	croak ("out of memory during aio_req allocation");
460		645
461	req->type = REQ_OPEN;	646	req->type = REQ_OPEN;
462	req->data = newSVsv (pathname);	647	req->data = newSVsv (pathname);
463	req->dataptr = SvPV_nolen (req->data);	648	req->dataptr = SvPVbyte_nolen (req->data);
464	req->fd = flags;	649	req->fd = flags;
465	req->mode = mode;	650	req->mode = mode;
466	req->callback = SvREFCNT_inc (callback);
467		651
468	send_req (req);	652	send_req (req);
469	}	653	}
470		654
471	void	655	void
…		…
477	aio_close = REQ_CLOSE	661	aio_close = REQ_CLOSE
478	aio_fsync = REQ_FSYNC	662	aio_fsync = REQ_FSYNC
479	aio_fdatasync = REQ_FDATASYNC	663	aio_fdatasync = REQ_FDATASYNC
480	CODE:	664	CODE:
481	{	665	{
482	aio_req req;	666	dREQ;
483
484	Newz (0, req, 1, aio_cb);
485
486	if (!req)
487	croak ("out of memory during aio_req allocation");
488		667
489	req->type = ix;	668	req->type = ix;
490	req->fh = newSVsv (fh);	669	req->fh = newSVsv (fh);
491	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	670	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
492	req->callback = SvREFCNT_inc (callback);
493		671
494	send_req (req);	672	send_req (req);
495	}	673	}
496		674
497	void	675	void
498	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	676	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
499	SV * fh	677	SV * fh
500	UV offset	678	UV offset
501	IV length	679	UV length
502	SV * data	680	SV * data
503	IV dataoffset	681	UV dataoffset
504	SV * callback	682	SV * callback
505	ALIAS:	683	ALIAS:
506	aio_read = REQ_READ	684	aio_read = REQ_READ
507	aio_write = REQ_WRITE	685	aio_write = REQ_WRITE
508	PROTOTYPE: $$$$$;$	686	PROTOTYPE: $$$$$;$
509	CODE:	687	CODE:
510	{	688	{
511	aio_req req;	689	aio_req req;
512	STRLEN svlen;	690	STRLEN svlen;
513	char *svptr = SvPV (data, svlen);	691	char *svptr = SvPVbyte (data, svlen);
514		692
515	SvUPGRADE (data, SVt_PV);	693	SvUPGRADE (data, SVt_PV);
516	SvPOK_on (data);	694	SvPOK_on (data);
517		695
518	if (dataoffset < 0)	696	if (dataoffset < 0)
…		…
534	}	712	}
535		713
536	if (length < 0)	714	if (length < 0)
537	croak ("length must not be negative");	715	croak ("length must not be negative");
538		716
539	Newz (0, req, 1, aio_cb);	717	{
		718	dREQ;
540		719
541	if (!req)
542	croak ("out of memory during aio_req allocation");
543
544	req->type = ix;	720	req->type = ix;
545	req->fh = newSVsv (fh);	721	req->fh = newSVsv (fh);
546	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	722	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
547	: IoOFP (sv_2io (fh)));	723	: IoOFP (sv_2io (fh)));
548	req->offset = offset;	724	req->offset = offset;
		725	req->length = length;
		726	req->data = SvREFCNT_inc (data);
		727	req->dataptr = (char *)svptr + dataoffset;
		728
		729	if (!SvREADONLY (data))
		730	{
		731	SvREADONLY_on (data);
		732	req->data2ptr = (void *)data;
		733	}
		734
		735	send_req (req);
		736	}
		737	}
		738
		739	void
		740	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		741	SV * out_fh
		742	SV * in_fh
		743	UV in_offset
		744	UV length
		745	SV * callback
		746	PROTOTYPE: $$$$;$
		747	CODE:
		748	{
		749	dREQ;
		750
		751	req->type = REQ_SENDFILE;
		752	req->fh = newSVsv (out_fh);
		753	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		754	req->fh2 = newSVsv (in_fh);
		755	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		756	req->offset = in_offset;
549	req->length = length;	757	req->length = length;
550	req->data = SvREFCNT_inc (data);
551	req->dataptr = (char *)svptr + dataoffset;
552	req->callback = SvREFCNT_inc (callback);
553		758
554	send_req (req);	759	send_req (req);
555	}	760	}
556		761
557	void	762	void
…		…
561	IV length	766	IV length
562	SV * callback	767	SV * callback
563	PROTOTYPE: $$$;$	768	PROTOTYPE: $$$;$
564	CODE:	769	CODE:
565	{	770	{
566	aio_req req;	771	dREQ;
567
568	if (length < 0)
569	croak ("length must not be negative");
570
571	Newz (0, req, 1, aio_cb);
572
573	if (!req)
574	croak ("out of memory during aio_req allocation");
575		772
576	req->type = REQ_READAHEAD;	773	req->type = REQ_READAHEAD;
577	req->fh = newSVsv (fh);	774	req->fh = newSVsv (fh);
578	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	775	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
579	req->offset = offset;	776	req->offset = offset;
580	req->length = length;	777	req->length = length;
581	req->callback = SvREFCNT_inc (callback);
582		778
583	send_req (req);	779	send_req (req);
584	}	780	}
585		781
586	void	782	void
…		…
590	ALIAS:	786	ALIAS:
591	aio_stat = REQ_STAT	787	aio_stat = REQ_STAT
592	aio_lstat = REQ_LSTAT	788	aio_lstat = REQ_LSTAT
593	CODE:	789	CODE:
594	{	790	{
595	aio_req req;	791	dREQ;
596
597	Newz (0, req, 1, aio_cb);
598
599	if (!req)
600	croak ("out of memory during aio_req allocation");
601		792
602	New (0, req->statdata, 1, Stat_t);	793	New (0, req->statdata, 1, Stat_t);
603
604	if (!req->statdata)	794	if (!req->statdata)
		795	{
		796	free_req (req);
605	croak ("out of memory during aio_req->statdata allocation");	797	croak ("out of memory during aio_req->statdata allocation");
		798	}
606		799
607	if (SvPOK (fh_or_path))	800	if (SvPOK (fh_or_path))
608	{	801	{
609	req->type = ix;	802	req->type = ix;
610	req->data = newSVsv (fh_or_path);	803	req->data = newSVsv (fh_or_path);
611	req->dataptr = SvPV_nolen (req->data);	804	req->dataptr = SvPVbyte_nolen (req->data);
612	}	805	}
613	else	806	else
614	{	807	{
615	req->type = REQ_FSTAT;	808	req->type = REQ_FSTAT;
616	req->fh = newSVsv (fh_or_path);	809	req->fh = newSVsv (fh_or_path);
617	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	810	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
618	}	811	}
619		812
620	req->callback = SvREFCNT_inc (callback);
621
622	send_req (req);	813	send_req (req);
623	}	814	}
624		815
625	void	816	void
626	aio_unlink(pathname,callback=&PL_sv_undef)	817	aio_unlink(pathname,callback=&PL_sv_undef)
627	SV * pathname	818	SV * pathname
628	SV * callback	819	SV * callback
		820	ALIAS:
		821	aio_unlink = REQ_UNLINK
		822	aio_rmdir = REQ_RMDIR
629	CODE:	823	CODE:
630	{	824	{
631	aio_req req;	825	dREQ;
632		826
633	Newz (0, req, 1, aio_cb);	827	req->type = ix;
		828	req->data = newSVsv (pathname);
		829	req->dataptr = SvPVbyte_nolen (req->data);
634		830
635	if (!req)	831	send_req (req);
636	croak ("out of memory during aio_req allocation");	832	}
		833
		834	void
		835	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		836	SV * oldpath
		837	SV * newpath
		838	SV * callback
		839	CODE:
		840	{
		841	dREQ;
637		842
638	req->type = REQ_UNLINK;	843	req->type = REQ_SYMLINK;
		844	req->fh = newSVsv (oldpath);
		845	req->data2ptr = SvPVbyte_nolen (req->fh);
639	req->data = newSVsv (pathname);	846	req->data = newSVsv (newpath);
640	req->dataptr = SvPV_nolen (req->data);	847	req->dataptr = SvPVbyte_nolen (req->data);
641	req->callback = SvREFCNT_inc (callback);
642		848
643	send_req (req);	849	send_req (req);
644	}	850	}
645		851
646	void	852	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.20 by root, Sun Jul 31 19:08:39 2005 UTC vs. Revision 1.32 by root, Mon Aug 22 23:20:37 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.20 by root, Sun Jul 31 19:08:39 2005 UTC vs.
Revision 1.32 by root, Mon Aug 22 23:20:37 2005 UTC