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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.9 by root, Tue Jul 12 11:02:54 2005 UTC vs.
Revision 1.27 by root, Wed Aug 17 04:47:02 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
		8	#include "autoconf/config.h"
		9
5	#include <sys/types.h>	10	#include <sys/types.h>
6	#include <sys/stat.h>	11	#include <sys/stat.h>
		12
7	#include <unistd.h>	13	#include <unistd.h>
8	#include <fcntl.h>	14	#include <fcntl.h>
9	#include <signal.h>	15	#include <signal.h>
10	#include <sched.h>	16	#include <sched.h>
11		17
12	#include <pthread.h>	18	#include <pthread.h>
13	#include <sys/syscall.h>
14		19
15	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
16	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
17	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
18		23
24		29
25	enum {	30	enum {
26	REQ_QUIT,	31	REQ_QUIT,
27	REQ_OPEN, REQ_CLOSE,	32	REQ_OPEN, REQ_CLOSE,
28	REQ_READ, REQ_WRITE, REQ_READAHEAD,	33	REQ_READ, REQ_WRITE, REQ_READAHEAD,
29	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
30	REQ_FSYNC, REQ_FDATASYNC,	35	REQ_FSYNC, REQ_FDATASYNC,
		36	REQ_UNLINK, REQ_RMDIR,
		37	REQ_SYMLINK,
31	};	38	};
32		39
33	typedef struct aio_cb {	40	typedef struct aio_cb {
34	struct aio_cb *volatile next;	41	struct aio_cb *volatile next;
35		42
…		…
39	off_t offset;	46	off_t offset;
40	size_t length;	47	size_t length;
41	ssize_t result;	48	ssize_t result;
42	mode_t mode; /* open */	49	mode_t mode; /* open */
43	int errorno;	50	int errorno;
44	SV data, callback;	51	SV data, callback, *fh;
45	void *dataptr;	52	void dataptr, data2ptr;
46	STRLEN dataoffset;	53	STRLEN dataoffset;
47		54
48	Stat_t *statdata;	55	Stat_t *statdata;
49	} aio_cb;	56	} aio_cb;
50		57
51	typedef aio_cb *aio_req;	58	typedef aio_cb *aio_req;
52		59
53	static int started;	60	static int started;
54	static int nreqs;	61	static volatile int nreqs;
55	static int max_outstanding = 1<<30;	62	static int max_outstanding = 1<<30;
56	static int respipe [2];	63	static int respipe [2];
57		64
58	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
59	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
60	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
61		68
62	static volatile aio_req reqs, reqe; /* queue start, queue end */	69	static volatile aio_req reqs, reqe; /* queue start, queue end */
63	static volatile aio_req ress, rese; /* queue start, queue end */	70	static volatile aio_req ress, rese; /* queue start, queue end */
64		71
		72	static void free_req (aio_req req)
		73	{
		74	if (req->data)
		75	SvREFCNT_dec (req->data);
		76
		77	if (req->fh)
		78	SvREFCNT_dec (req->fh);
		79
		80	if (req->statdata)
		81	Safefree (req->statdata);
		82
		83	if (req->callback)
		84	SvREFCNT_dec (req->callback);
		85
		86	Safefree (req);
		87	}
		88
65	static void	89	static void
66	poll_wait ()	90	poll_wait ()
67	{	91	{
68	if (!nreqs)	92	if (nreqs && !ress)
69	return;	93	{
70
71	fd_set rfd;	94	fd_set rfd;
72	FD_ZERO(&rfd);	95	FD_ZERO(&rfd);
73	FD_SET(respipe [0], &rfd);	96	FD_SET(respipe [0], &rfd);
74		97
75	select (respipe [0] + 1, &rfd, 0, 0, 0);	98	select (respipe [0] + 1, &rfd, 0, 0, 0);
		99	}
76	}	100	}
77		101
78	static int	102	static int
79	poll_cb ()	103	poll_cb ()
80	{	104	{
81	dSP;	105	dSP;
82	int count = 0;	106	int count = 0;
		107	int do_croak = 0;
83	aio_req req;	108	aio_req req;
84
85	{
86	/* read and signals sent by the worker threads */
87	char buf [32];
88	while (read (respipe [0], buf, 32) > 0)
89	;
90	}
91		109
92	for (;;)	110	for (;;)
93	{	111	{
94	pthread_mutex_lock (&reslock);	112	pthread_mutex_lock (&reslock);
95
96	req = ress;	113	req = ress;
97		114
98	if (ress)	115	if (req)
99	{	116	{
100	ress = ress->next;	117	ress = req->next;
		118
101	if (!ress) rese = 0;	119	if (!ress)
		120	{
		121	rese = 0;
		122
		123	/* read any signals sent by the worker threads */
		124	char buf [32];
		125	while (read (respipe [0], buf, 32) == 32)
		126	;
		127	}
102	}	128	}
103		129
104	pthread_mutex_unlock (&reslock);	130	pthread_mutex_unlock (&reslock);
105		131
106	if (!req)	132	if (!req)
…		…
114	{	140	{
115	int errorno = errno;	141	int errorno = errno;
116	errno = req->errorno;	142	errno = req->errorno;
117		143
118	if (req->type == REQ_READ)	144	if (req->type == REQ_READ)
119	SvCUR_set (req->data, req->dataoffset	145	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
120	+ req->result > 0 ? req->result : 0);
121		146
122	if (req->data)	147	if (req->statdata)
123	SvREFCNT_dec (req->data);
124
125	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
126	{	148	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	149	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	150	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	151	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	152	}
133		153
		154	ENTER;
134	PUSHMARK (SP);	155	PUSHMARK (SP);
135	XPUSHs (sv_2mortal (newSViv (req->result)));	156	XPUSHs (sv_2mortal (newSViv (req->result)));
136		157
137	if (req->type == REQ_OPEN)	158	if (req->type == REQ_OPEN)
138	{	159	{
…		…
141		162
142	PUTBACK;	163	PUTBACK;
143	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	164	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
144	SPAGAIN;	165	SPAGAIN;
145		166
146	fh = POPs;	167	fh = SvREFCNT_inc (POPs);
147		168
148	PUSHMARK (SP);	169	PUSHMARK (SP);
149	XPUSHs (fh);	170	XPUSHs (sv_2mortal (fh));
150	}	171	}
151		172
152	if (SvOK (req->callback))	173	if (SvOK (req->callback))
153	{	174	{
154	PUTBACK;	175	PUTBACK;
155	call_sv (req->callback, G_VOID \| G_EVAL);	176	call_sv (req->callback, G_VOID \| G_EVAL);
156	SPAGAIN;	177	SPAGAIN;
		178
		179	if (SvTRUE (ERRSV))
		180	{
		181	free_req (req);
		182	croak (0);
		183	}
157	}	184	}
		185
158		186	LEAVE;
159	if (req->callback)
160	SvREFCNT_dec (req->callback);
161		187
162	errno = errorno;	188	errno = errorno;
163	count++;	189	count++;
164	}	190	}
165		191
166	Safefree (req);	192	free_req (req);
167	}	193	}
168		194
169	return count;	195	return count;
170	}	196	}
171		197
…		…
209	reqe = reqs = req;	235	reqe = reqs = req;
210		236
211	pthread_cond_signal (&reqwait);	237	pthread_cond_signal (&reqwait);
212	pthread_mutex_unlock (&reqlock);	238	pthread_mutex_unlock (&reqlock);
213		239
214	while (nreqs > max_outstanding)	240	if (nreqs > max_outstanding)
		241	for (;;)
		242	{
		243	poll_cb ();
		244
		245	if (nreqs <= max_outstanding)
		246	break;
		247
		248	poll_wait ();
		249	}
		250	}
		251
		252	static void
		253	end_thread (void)
		254	{
		255	aio_req req;
		256	Newz (0, req, 1, aio_cb);
		257	req->type = REQ_QUIT;
		258
		259	send_req (req);
		260	}
		261
		262	static void min_parallel (int nthreads)
		263	{
		264	while (nthreads > started)
		265	start_thread ();
		266	}
		267
		268	static void max_parallel (int nthreads)
		269	{
		270	int cur = started;
		271
		272	while (cur > nthreads)
		273	{
		274	end_thread ();
		275	cur--;
		276	}
		277
		278	while (started > nthreads)
215	{	279	{
216	poll_wait ();	280	poll_wait ();
217	poll_cb ();	281	poll_cb ();
218	}	282	}
219	}	283	}
220		284
221	static void	285	static void create_pipe ()
222	end_thread (void)
223	{	286	{
224	aio_req req;	287	if (pipe (respipe))
225	New (0, req, 1, aio_cb);	288	croak ("unable to initialize result pipe");
226	req->type = REQ_QUIT;
227		289
228	send_req (req);	290	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
229	}	291	croak ("cannot set result pipe to nonblocking mode");
230		292
231	static void	293	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
232	read_write (int dowrite, int fd, off_t offset, size_t length,	294	croak ("cannot set result pipe to nonblocking mode");
233	SV data, STRLEN dataoffset, SV callback)	295	}
234	{
235	aio_req req;
236	STRLEN svlen;
237	char *svptr = SvPV (data, svlen);
238		296
239	SvUPGRADE (data, SVt_PV);	297	static void atfork_prepare (void)
240	SvPOK_on (data);	298	{
		299	for (;;) {
241		300
242	if (dataoffset < 0)	301	for (;;)
243	dataoffset += svlen;	302	{
		303	poll_cb ();
244		304
245	if (dataoffset < 0 \|\| dataoffset > svlen)	305	if (!nreqs)
246	croak ("data offset outside of string");	306	break;
247		307
248	if (dowrite)	308	poll_wait ();
		309	}
		310
		311	pthread_mutex_lock (&reqlock);
		312
		313	if (!nreqs)
		314	break;
		315
		316	pthread_mutex_unlock (&reqlock);
		317	}
		318
		319	pthread_mutex_lock (&reslock);
		320
		321	assert (!nreqs && !reqs && !ress);
		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	{
		332	int restart = started;
		333	started = 0;
		334
		335	atfork_parent ();
		336
		337	min_parallel (restart);
		338	}
		339
		340	/*****************************************************************************/
		341	/* work around various missing functions */
		342
		343	#if !HAVE_PREADWRITE
		344	# define pread aio_pread
		345	# define pwrite aio_pwrite
		346
		347	/*
		348	* make our pread/pwrite safe against themselves, but not against
		349	* normal read/write by using a mutex. slows down execution a lot,
		350	* but that's your problem, not mine.
		351	*/
		352	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		353
		354	static ssize_t
		355	pread (int fd, void *buf, size_t count, off_t offset)
		356	{
		357	ssize_t res;
		358	off_t ooffset;
		359
		360	pthread_mutex_lock (&iolock);
		361	ooffset = lseek (fd, 0, SEEK_CUR);
		362	lseek (fd, offset, SEEK_SET);
		363	res = read (fd, buf, count);
		364	lseek (fd, ooffset, SEEK_SET);
		365	pthread_mutex_unlock (&iolock);
		366
		367	return res;
		368	}
		369
		370	static ssize_t
		371	pwrite (int fd, void *buf, size_t count, off_t offset)
		372	{
		373	ssize_t res;
		374	off_t ooffset;
		375
		376	pthread_mutex_lock (&iolock);
		377	ooffset = lseek (fd, 0, SEEK_CUR);
		378	lseek (fd, offset, SEEK_SET);
		379	res = write (fd, buf, count);
		380	lseek (fd, offset, SEEK_SET);
		381	pthread_mutex_unlock (&iolock);
		382
		383	return res;
		384	}
		385	#endif
		386
		387	#if !HAVE_FDATASYNC
		388	# define fdatasync fsync
		389	#endif
		390
		391	#if !HAVE_READAHEAD
		392	# define readahead aio_readahead
		393
		394	static char readahead_buf[4096];
		395
		396	static ssize_t
		397	readahead (int fd, off_t offset, size_t count)
		398	{
		399	while (count > 0)
249	{	400	{
250	/* write: check length and adjust. */	401	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
251	if (length < 0 \|\| length + dataoffset > svlen)	402
252	length = svlen - dataoffset;	403	pread (fd, readahead_buf, len, offset);
		404	offset += len;
		405	count -= len;
253	}	406	}
254	else
255	{
256	/* read: grow scalar as necessary */
257	svptr = SvGROW (data, length + dataoffset);
258	}
259		407
260	if (length < 0)	408	errno = 0;
261	croak ("length must not be negative");
262
263	Newz (0, req, 1, aio_cb);
264
265	if (!req)
266	croak ("out of memory during aio_req allocation");
267
268	req->type = dowrite ? REQ_WRITE : REQ_READ;
269	req->fd = fd;
270	req->offset = offset;
271	req->length = length;
272	req->data = SvREFCNT_inc (data);
273	req->dataptr = (char *)svptr + dataoffset;
274	req->callback = SvREFCNT_inc (callback);
275
276	send_req (req);
277	}	409	}
		410	#endif
		411
		412	/*****************************************************************************/
278		413
279	static void *	414	static void *
280	aio_proc (void *thr_arg)	415	aio_proc (void *thr_arg)
281	{	416	{
282	aio_req req;	417	aio_req req;
…		…
308		443
309	type = req->type;	444	type = req->type;
310		445
311	switch (type)	446	switch (type)
312	{	447	{
313	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;	448	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
314	case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;	449	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
315	#if SYS_readahead	450
316	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	451	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
317	#else
318	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
319	#endif
320		452
321	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	453	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
322	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	454	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
323	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	455	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
324		456
325	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	457	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
326	case REQ_CLOSE: req->result = close (req->fd); break;	458	case REQ_CLOSE: req->result = close (req->fd); break;
327	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	459	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		460	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		461	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
328		462
		463	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329	case REQ_FSYNC: req->result = fsync (req->fd); break;	464	case REQ_FSYNC: req->result = fsync (req->fd); break;
330	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
331		465
332	case REQ_QUIT:	466	case REQ_QUIT:
333	break;	467	break;
334		468
335	default:	469	default:
…		…
361	while (type != REQ_QUIT);	495	while (type != REQ_QUIT);
362		496
363	return 0;	497	return 0;
364	}	498	}
365		499
		500	#define dREQ \
		501	aio_req req; \
		502	\
		503	if (SvOK (callback) && !SvROK (callback)) \
		504	croak ("clalback must be undef or of reference type"); \
		505	\
		506	Newz (0, req, 1, aio_cb); \
		507	if (!req) \
		508	croak ("out of memory during aio_req allocation"); \
		509	\
		510	req->callback = newSVsv (callback);
		511
366	MODULE = IO::AIO PACKAGE = IO::AIO	512	MODULE = IO::AIO PACKAGE = IO::AIO
367		513
368	PROTOTYPES: ENABLE	514	PROTOTYPES: ENABLE
369		515
370	BOOT:	516	BOOT:
371	{	517	{
372	if (pipe (respipe))	518	create_pipe ();
373	croak ("unable to initialize result pipe");	519	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
374
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
376	croak ("cannot set result pipe to nonblocking mode");
377
378	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
379	croak ("cannot set result pipe to nonblocking mode");
380	}	520	}
381		521
382	void	522	void
383	min_parallel(nthreads)	523	min_parallel(nthreads)
384	int nthreads	524	int nthreads
385	PROTOTYPE: $	525	PROTOTYPE: $
386	CODE:
387	while (nthreads > started)
388	start_thread ();
389		526
390	void	527	void
391	max_parallel(nthreads)	528	max_parallel(nthreads)
392	int nthreads	529	int nthreads
393	PROTOTYPE: $	530	PROTOTYPE: $
394	CODE:
395	{
396	int cur = started;
397	while (cur > nthreads)
398	{
399	end_thread ();
400	cur--;
401	}
402
403	while (started > nthreads)
404	{
405	poll_wait ();
406	poll_cb ();
407	}
408	}
409		531
410	int	532	int
411	max_outstanding(nreqs)	533	max_outstanding(nreqs)
412	int nreqs	534	int nreqs
413	PROTOTYPE: $	535	PROTOTYPE: $
…		…
422	int mode	544	int mode
423	SV * callback	545	SV * callback
424	PROTOTYPE: $$$;$	546	PROTOTYPE: $$$;$
425	CODE:	547	CODE:
426	{	548	{
427	aio_req req;	549	dREQ;
428
429	Newz (0, req, 1, aio_cb);
430
431	if (!req)
432	croak ("out of memory during aio_req allocation");
433		550
434	req->type = REQ_OPEN;	551	req->type = REQ_OPEN;
435	req->data = newSVsv (pathname);	552	req->data = newSVsv (pathname);
436	req->dataptr = SvPV_nolen (req->data);	553	req->dataptr = SvPVbyte_nolen (req->data);
437	req->fd = flags;	554	req->fd = flags;
438	req->mode = mode;	555	req->mode = mode;
439	req->callback = SvREFCNT_inc (callback);
440		556
441	send_req (req);	557	send_req (req);
442	}	558	}
443		559
444	void	560	void
445	aio_close(fh,callback=&PL_sv_undef)	561	aio_close(fh,callback=&PL_sv_undef)
446	InputStream fh	562	SV * fh
447	SV * callback	563	SV * callback
448	PROTOTYPE: $;$	564	PROTOTYPE: $;$
449	ALIAS:	565	ALIAS:
450	aio_close = REQ_CLOSE	566	aio_close = REQ_CLOSE
451	aio_fsync = REQ_FSYNC	567	aio_fsync = REQ_FSYNC
452	aio_fdatasync = REQ_FDATASYNC	568	aio_fdatasync = REQ_FDATASYNC
453	CODE:	569	CODE:
454	{	570	{
455	aio_req req;	571	dREQ;
456
457	Newz (0, req, 1, aio_cb);
458
459	if (!req)
460	croak ("out of memory during aio_req allocation");
461		572
462	req->type = ix;	573	req->type = ix;
		574	req->fh = newSVsv (fh);
463	req->fd = PerlIO_fileno (fh);	575	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
464	req->callback = SvREFCNT_inc (callback);
465		576
466	send_req (req);	577	send_req (req);
467	}	578	}
468		579
469	void	580	void
470	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	581	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
471	InputStream fh	582	SV * fh
472	UV offset	583	UV offset
473	IV length	584	IV length
474	SV * data	585	SV * data
475	IV dataoffset	586	IV dataoffset
476	SV * callback	587	SV * callback
		588	ALIAS:
		589	aio_read = REQ_READ
		590	aio_write = REQ_WRITE
477	PROTOTYPE: $$$$$;$	591	PROTOTYPE: $$$$$;$
478	CODE:	592	CODE:
479	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	593	{
		594	aio_req req;
		595	STRLEN svlen;
		596	char *svptr = SvPVbyte (data, svlen);
480		597
481	void	598	SvUPGRADE (data, SVt_PV);
482	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	599	SvPOK_on (data);
483	OutputStream fh	600
484	UV offset	601	if (dataoffset < 0)
485	IV length	602	dataoffset += svlen;
486	SV * data	603
487	IV dataoffset	604	if (dataoffset < 0 \|\| dataoffset > svlen)
488	SV * callback	605	croak ("data offset outside of string");
489	PROTOTYPE: $$$$$;$	606
490	CODE:	607	if (ix == REQ_WRITE)
491	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	608	{
		609	/* write: check length and adjust. */
		610	if (length < 0 \|\| length + dataoffset > svlen)
		611	length = svlen - dataoffset;
		612	}
		613	else
		614	{
		615	/* read: grow scalar as necessary */
		616	svptr = SvGROW (data, length + dataoffset);
		617	}
		618
		619	if (length < 0)
		620	croak ("length must not be negative");
		621
		622	{
		623	dREQ;
		624
		625	req->type = ix;
		626	req->fh = newSVsv (fh);
		627	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		628	: IoOFP (sv_2io (fh)));
		629	req->offset = offset;
		630	req->length = length;
		631	req->data = SvREFCNT_inc (data);
		632	req->dataptr = (char *)svptr + dataoffset;
		633
		634	send_req (req);
		635	}
		636	}
492		637
493	void	638	void
494	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	639	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
495	InputStream fh	640	SV * fh
496	UV offset	641	UV offset
497	IV length	642	IV length
498	SV * callback	643	SV * callback
499	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
500	CODE:	645	CODE:
501	{	646	{
502	aio_req req;	647	dREQ;
503
504	if (length < 0)
505	croak ("length must not be negative");
506
507	Newz (0, req, 1, aio_cb);
508
509	if (!req)
510	croak ("out of memory during aio_req allocation");
511		648
512	req->type = REQ_READAHEAD;	649	req->type = REQ_READAHEAD;
		650	req->fh = newSVsv (fh);
513	req->fd = PerlIO_fileno (fh);	651	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
514	req->offset = offset;	652	req->offset = offset;
515	req->length = length;	653	req->length = length;
516	req->callback = SvREFCNT_inc (callback);
517		654
518	send_req (req);	655	send_req (req);
519	}	656	}
520		657
521	void	658	void
…		…
525	ALIAS:	662	ALIAS:
526	aio_stat = REQ_STAT	663	aio_stat = REQ_STAT
527	aio_lstat = REQ_LSTAT	664	aio_lstat = REQ_LSTAT
528	CODE:	665	CODE:
529	{	666	{
530	aio_req req;	667	dREQ;
531
532	Newz (0, req, 1, aio_cb);
533
534	if (!req)
535	croak ("out of memory during aio_req allocation");
536		668
537	New (0, req->statdata, 1, Stat_t);	669	New (0, req->statdata, 1, Stat_t);
538
539	if (!req->statdata)	670	if (!req->statdata)
		671	{
		672	free_req (req);
540	croak ("out of memory during aio_req->statdata allocation");	673	croak ("out of memory during aio_req->statdata allocation");
		674	}
541		675
542	if (SvPOK (fh_or_path))	676	if (SvPOK (fh_or_path))
543	{	677	{
544	req->type = ix;	678	req->type = ix;
545	req->data = newSVsv (fh_or_path);	679	req->data = newSVsv (fh_or_path);
546	req->dataptr = SvPV_nolen (req->data);	680	req->dataptr = SvPVbyte_nolen (req->data);
547	}	681	}
548	else	682	else
549	{	683	{
550	req->type = REQ_FSTAT;	684	req->type = REQ_FSTAT;
		685	req->fh = newSVsv (fh_or_path);
551	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	686	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
552	}	687	}
553
554	req->callback = SvREFCNT_inc (callback);
555		688
556	send_req (req);	689	send_req (req);
557	}	690	}
558		691
559	void	692	void
560	aio_unlink(pathname,callback=&PL_sv_undef)	693	aio_unlink(pathname,callback=&PL_sv_undef)
561	SV * pathname	694	SV * pathname
562	SV * callback	695	SV * callback
		696	ALIAS:
		697	aio_unlink = REQ_UNLINK
		698	aio_rmdir = REQ_RMDIR
563	CODE:	699	CODE:
564	{	700	{
565	aio_req req;	701	dREQ;
566		702
567	Newz (0, req, 1, aio_cb);	703	req->type = ix;
		704	req->data = newSVsv (pathname);
		705	req->dataptr = SvPVbyte_nolen (req->data);
568		706
569	if (!req)	707	send_req (req);
570	croak ("out of memory during aio_req allocation");	708	}
		709
		710	void
		711	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		712	SV * oldpath
		713	SV * newpath
		714	SV * callback
		715	CODE:
		716	{
		717	dREQ;
571		718
572	req->type = REQ_UNLINK;	719	req->type = REQ_SYMLINK;
		720	req->fh = newSVsv (oldpath);
		721	req->data2ptr = SvPVbyte_nolen (req->fh);
573	req->data = newSVsv (pathname);	722	req->data = newSVsv (newpath);
574	req->dataptr = SvPV_nolen (req->data);	723	req->dataptr = SvPVbyte_nolen (req->data);
575	req->callback = SvREFCNT_inc (callback);
576		724
577	send_req (req);	725	send_req (req);
578	}	726	}
579		727
580	void	728	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.9 by root, Tue Jul 12 11:02:54 2005 UTC vs. Revision 1.27 by root, Wed Aug 17 04:47:02 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.9 by root, Tue Jul 12 11:02:54 2005 UTC vs.
Revision 1.27 by root, Wed Aug 17 04:47:02 2005 UTC