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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.27 by root, Wed Aug 17 04:47:02 2005 UTC

…		…
1	#define _XOPEN_SOURCE 500	1	#define _REENTRANT 1
		2	#include <errno.h>
2		3
3	#include "EXTERN.h"	4	#include "EXTERN.h"
4	#include "perl.h"	5	#include "perl.h"
5	#include "XSUB.h"	6	#include "XSUB.h"
		7
		8	#include "autoconf/config.h"
6		9
7	#include <sys/types.h>	10	#include <sys/types.h>
8	#include <sys/stat.h>	11	#include <sys/stat.h>
9		12
10	#include <unistd.h>	13	#include <unistd.h>
11	#include <fcntl.h>	14	#include <fcntl.h>
12	#include <signal.h>	15	#include <signal.h>
13	#include <sched.h>	16	#include <sched.h>
14	#if __linux
15	#include <sys/syscall.h>
16	#endif
17		17
18	#include <pthread.h>	18	#include <pthread.h>
19		19
20	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 ;) */
21	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 ;) */
29		29
30	enum {	30	enum {
31	REQ_QUIT,	31	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	32	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	33	REQ_READ, REQ_WRITE, REQ_READAHEAD,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	35	REQ_FSYNC, REQ_FDATASYNC,
		36	REQ_UNLINK, REQ_RMDIR,
		37	REQ_SYMLINK,
36	};	38	};
37		39
38	typedef struct aio_cb {	40	typedef struct aio_cb {
39	struct aio_cb *volatile next;	41	struct aio_cb *volatile next;
40		42
…		…
44	off_t offset;	46	off_t offset;
45	size_t length;	47	size_t length;
46	ssize_t result;	48	ssize_t result;
47	mode_t mode; /* open */	49	mode_t mode; /* open */
48	int errorno;	50	int errorno;
49	SV data, callback;	51	SV data, callback, *fh;
50	void *dataptr;	52	void dataptr, data2ptr;
51	STRLEN dataoffset;	53	STRLEN dataoffset;
52		54
53	Stat_t *statdata;	55	Stat_t *statdata;
54	} aio_cb;	56	} aio_cb;
55		57
…		…
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		68
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	69	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	70	static volatile aio_req ress, rese; /* queue start, queue end */
		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	}
69		88
70	static void	89	static void
71	poll_wait ()	90	poll_wait ()
72	{	91	{
73	if (nreqs && !ress)	92	if (nreqs && !ress)
…		…
83	static int	102	static int
84	poll_cb ()	103	poll_cb ()
85	{	104	{
86	dSP;	105	dSP;
87	int count = 0;	106	int count = 0;
		107	int do_croak = 0;
88	aio_req req, prv;	108	aio_req req;
89		109
90	static int rl;//D	110	for (;;)
91	//printf ("%d ENTER\n", ++rl);//D
92
93	pthread_mutex_lock (&reslock);
94
95	{
96	/* read any signals sent by the worker threads */
97	char buf [32];
98	while (read (respipe [0], buf, 32) > 0)
99	;
100	}
101
102	req = ress;
103	ress = rese = 0;
104
105	pthread_mutex_unlock (&reslock);
106
107	while (req)
108	{	111	{
		112	pthread_mutex_lock (&reslock);
		113	req = ress;
		114
		115	if (req)
		116	{
		117	ress = req->next;
		118
		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	}
		128	}
		129
		130	pthread_mutex_unlock (&reslock);
		131
		132	if (!req)
		133	break;
		134
109	nreqs--;	135	nreqs--;
110	//printf ("%d count %d %p->%p\n", rl, count, req, req->next);//D
111		136
112	if (req->type == REQ_QUIT)	137	if (req->type == REQ_QUIT)
113	started--;	138	started--;
114	else	139	else
115	{	140	{
116	int errorno = errno;	141	int errorno = errno;
117	errno = req->errorno;	142	errno = req->errorno;
118		143
119	if (req->type == REQ_READ)	144	if (req->type == REQ_READ)
120	SvCUR_set (req->data, req->dataoffset	145	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
121	+ req->result > 0 ? req->result : 0);
122		146
123	if (req->data)	147	if (req->statdata)
124	SvREFCNT_dec (req->data);
125
126	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
127	{	148	{
128	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	149	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129	PL_laststatval = req->result;	150	PL_laststatval = req->result;
130	PL_statcache = *(req->statdata);	151	PL_statcache = *(req->statdata);
131
132	Safefree (req->statdata);
133	}	152	}
134		153
		154	ENTER;
135	PUSHMARK (SP);	155	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	156	XPUSHs (sv_2mortal (newSViv (req->result)));
137		157
138	if (req->type == REQ_OPEN)	158	if (req->type == REQ_OPEN)
139	{	159	{
…		…
142		162
143	PUTBACK;	163	PUTBACK;
144	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	164	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
145	SPAGAIN;	165	SPAGAIN;
146		166
147	fh = POPs;	167	fh = SvREFCNT_inc (POPs);
148		168
149	PUSHMARK (SP);	169	PUSHMARK (SP);
150	XPUSHs (fh);	170	XPUSHs (sv_2mortal (fh));
151	}	171	}
152		172
153	if (SvOK (req->callback))	173	if (SvOK (req->callback))
154	{	174	{
155	PUTBACK;	175	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	176	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	177	SPAGAIN;
		178
		179	if (SvTRUE (ERRSV))
		180	{
		181	free_req (req);
		182	croak (0);
		183	}
158	}	184	}
		185
159		186	LEAVE;
160	if (req->callback)
161	SvREFCNT_dec (req->callback);
162		187
163	errno = errorno;	188	errno = errorno;
164	count++;	189	count++;
165	}	190	}
166		191
167	prv = req;	192	free_req (req);
168	req = req->next;
169	Safefree (prv);
170
171	/* TODO: croak on errors? */
172	}	193	}
173		194
174	//printf ("%d LEAVE %p %p\n", rl--, ress, rese);//D
175	return count;	195	return count;
176	}	196	}
177		197
178	static void aio_proc(void arg);	198	static void aio_proc(void arg);
179		199
…		…
215	reqe = reqs = req;	235	reqe = reqs = req;
216		236
217	pthread_cond_signal (&reqwait);	237	pthread_cond_signal (&reqwait);
218	pthread_mutex_unlock (&reqlock);	238	pthread_mutex_unlock (&reqlock);
219		239
220	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)
221	{	279	{
222	poll_wait ();	280	poll_wait ();
223	poll_cb ();	281	poll_cb ();
224	}	282	}
225	}	283	}
226		284
227	static void	285	static void create_pipe ()
228	end_thread (void)
229	{	286	{
230	aio_req req;	287	if (pipe (respipe))
231	New (0, req, 1, aio_cb);	288	croak ("unable to initialize result pipe");
232	req->type = REQ_QUIT;
233		289
234	send_req (req);	290	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
235	}	291	croak ("cannot set result pipe to nonblocking mode");
236		292
237	static void	293	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
238	read_write (int dowrite, int fd, off_t offset, size_t length,	294	croak ("cannot set result pipe to nonblocking mode");
239	SV data, STRLEN dataoffset, SV callback)	295	}
240	{
241	aio_req req;
242	STRLEN svlen;
243	char *svptr = SvPV (data, svlen);
244		296
245	SvUPGRADE (data, SVt_PV);	297	static void atfork_prepare (void)
246	SvPOK_on (data);	298	{
		299	for (;;) {
247		300
248	if (dataoffset < 0)	301	for (;;)
249	dataoffset += svlen;	302	{
		303	poll_cb ();
250		304
251	if (dataoffset < 0 \|\| dataoffset > svlen)	305	if (!nreqs)
252	croak ("data offset outside of string");	306	break;
253		307
254	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)
255	{	400	{
256	/* write: check length and adjust. */	401	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
257	if (length < 0 \|\| length + dataoffset > svlen)	402
258	length = svlen - dataoffset;	403	pread (fd, readahead_buf, len, offset);
		404	offset += len;
		405	count -= len;
259	}	406	}
260	else
261	{
262	/* read: grow scalar as necessary */
263	svptr = SvGROW (data, length + dataoffset);
264	}
265		407
266	if (length < 0)	408	errno = 0;
267	croak ("length must not be negative");
268
269	Newz (0, req, 1, aio_cb);
270
271	if (!req)
272	croak ("out of memory during aio_req allocation");
273
274	req->type = dowrite ? REQ_WRITE : REQ_READ;
275	req->fd = fd;
276	req->offset = offset;
277	req->length = length;
278	req->data = SvREFCNT_inc (data);
279	req->dataptr = (char *)svptr + dataoffset;
280	req->callback = SvREFCNT_inc (callback);
281
282	send_req (req);
283	}	409	}
		410	#endif
		411
		412	/*****************************************************************************/
284		413
285	static void *	414	static void *
286	aio_proc (void *thr_arg)	415	aio_proc (void *thr_arg)
287	{	416	{
288	aio_req req;	417	aio_req req;
…		…
316		445
317	switch (type)	446	switch (type)
318	{	447	{
319	case REQ_READ: req->result = pread (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;
320	case REQ_WRITE: req->result = pwrite (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;
321	#if SYS_readahead	450
322	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;
323	#else
324	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
325	#endif
326		452
327	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	453	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
328	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	454	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
329	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	455	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
330		456
331	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;
332	case REQ_CLOSE: req->result = close (req->fd); break;	458	case REQ_CLOSE: req->result = close (req->fd); break;
333	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;
334		462
		463	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
335	case REQ_FSYNC: req->result = fsync (req->fd); break;	464	case REQ_FSYNC: req->result = fsync (req->fd); break;
336	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
337		465
338	case REQ_QUIT:	466	case REQ_QUIT:
339	break;	467	break;
340		468
341	default:	469	default:
…		…
367	while (type != REQ_QUIT);	495	while (type != REQ_QUIT);
368		496
369	return 0;	497	return 0;
370	}	498	}
371		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
372	MODULE = IO::AIO PACKAGE = IO::AIO	512	MODULE = IO::AIO PACKAGE = IO::AIO
373		513
374	PROTOTYPES: ENABLE	514	PROTOTYPES: ENABLE
375		515
376	BOOT:	516	BOOT:
377	{	517	{
378	if (pipe (respipe))	518	create_pipe ();
379	croak ("unable to initialize result pipe");	519	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
380
381	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
382	croak ("cannot set result pipe to nonblocking mode");
383
384	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
385	croak ("cannot set result pipe to nonblocking mode");
386	}	520	}
387		521
388	void	522	void
389	min_parallel(nthreads)	523	min_parallel(nthreads)
390	int nthreads	524	int nthreads
391	PROTOTYPE: $	525	PROTOTYPE: $
392	CODE:
393	while (nthreads > started)
394	start_thread ();
395		526
396	void	527	void
397	max_parallel(nthreads)	528	max_parallel(nthreads)
398	int nthreads	529	int nthreads
399	PROTOTYPE: $	530	PROTOTYPE: $
400	CODE:
401	{
402	int cur = started;
403	while (cur > nthreads)
404	{
405	end_thread ();
406	cur--;
407	}
408
409	while (started > nthreads)
410	{
411	poll_wait ();
412	poll_cb ();
413	}
414	}
415		531
416	int	532	int
417	max_outstanding(nreqs)	533	max_outstanding(nreqs)
418	int nreqs	534	int nreqs
419	PROTOTYPE: $	535	PROTOTYPE: $
…		…
428	int mode	544	int mode
429	SV * callback	545	SV * callback
430	PROTOTYPE: $$$;$	546	PROTOTYPE: $$$;$
431	CODE:	547	CODE:
432	{	548	{
433	aio_req req;	549	dREQ;
434
435	Newz (0, req, 1, aio_cb);
436
437	if (!req)
438	croak ("out of memory during aio_req allocation");
439		550
440	req->type = REQ_OPEN;	551	req->type = REQ_OPEN;
441	req->data = newSVsv (pathname);	552	req->data = newSVsv (pathname);
442	req->dataptr = SvPV_nolen (req->data);	553	req->dataptr = SvPVbyte_nolen (req->data);
443	req->fd = flags;	554	req->fd = flags;
444	req->mode = mode;	555	req->mode = mode;
445	req->callback = SvREFCNT_inc (callback);
446		556
447	send_req (req);	557	send_req (req);
448	}	558	}
449		559
450	void	560	void
451	aio_close(fh,callback=&PL_sv_undef)	561	aio_close(fh,callback=&PL_sv_undef)
452	InputStream fh	562	SV * fh
453	SV * callback	563	SV * callback
454	PROTOTYPE: $;$	564	PROTOTYPE: $;$
455	ALIAS:	565	ALIAS:
456	aio_close = REQ_CLOSE	566	aio_close = REQ_CLOSE
457	aio_fsync = REQ_FSYNC	567	aio_fsync = REQ_FSYNC
458	aio_fdatasync = REQ_FDATASYNC	568	aio_fdatasync = REQ_FDATASYNC
459	CODE:	569	CODE:
460	{	570	{
461	aio_req req;	571	dREQ;
462
463	Newz (0, req, 1, aio_cb);
464
465	if (!req)
466	croak ("out of memory during aio_req allocation");
467		572
468	req->type = ix;	573	req->type = ix;
		574	req->fh = newSVsv (fh);
469	req->fd = PerlIO_fileno (fh);	575	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
470	req->callback = SvREFCNT_inc (callback);
471		576
472	send_req (req);	577	send_req (req);
473	}	578	}
474		579
475	void	580	void
476	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	581	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
477	InputStream fh	582	SV * fh
478	UV offset	583	UV offset
479	IV length	584	IV length
480	SV * data	585	SV * data
481	IV dataoffset	586	IV dataoffset
482	SV * callback	587	SV * callback
		588	ALIAS:
		589	aio_read = REQ_READ
		590	aio_write = REQ_WRITE
483	PROTOTYPE: $$$$$;$	591	PROTOTYPE: $$$$$;$
484	CODE:	592	CODE:
485	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	593	{
		594	aio_req req;
		595	STRLEN svlen;
		596	char *svptr = SvPVbyte (data, svlen);
486		597
487	void	598	SvUPGRADE (data, SVt_PV);
488	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	599	SvPOK_on (data);
489	OutputStream fh	600
490	UV offset	601	if (dataoffset < 0)
491	IV length	602	dataoffset += svlen;
492	SV * data	603
493	IV dataoffset	604	if (dataoffset < 0 \|\| dataoffset > svlen)
494	SV * callback	605	croak ("data offset outside of string");
495	PROTOTYPE: $$$$$;$	606
496	CODE:	607	if (ix == REQ_WRITE)
497	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	608	{
		609	/* write: check length and adjust. */
		610	if (length < 0 \|\| length + dataoffset > svlen)
		611	length = svlen - dataoffset;
		612	}
		613	else
		614	{
		615	/* read: grow scalar as necessary */
		616	svptr = SvGROW (data, length + dataoffset);
		617	}
		618
		619	if (length < 0)
		620	croak ("length must not be negative");
		621
		622	{
		623	dREQ;
		624
		625	req->type = ix;
		626	req->fh = newSVsv (fh);
		627	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		628	: IoOFP (sv_2io (fh)));
		629	req->offset = offset;
		630	req->length = length;
		631	req->data = SvREFCNT_inc (data);
		632	req->dataptr = (char *)svptr + dataoffset;
		633
		634	send_req (req);
		635	}
		636	}
498		637
499	void	638	void
500	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	639	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
501	InputStream fh	640	SV * fh
502	UV offset	641	UV offset
503	IV length	642	IV length
504	SV * callback	643	SV * callback
505	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
506	CODE:	645	CODE:
507	{	646	{
508	aio_req req;	647	dREQ;
509
510	if (length < 0)
511	croak ("length must not be negative");
512
513	Newz (0, req, 1, aio_cb);
514
515	if (!req)
516	croak ("out of memory during aio_req allocation");
517		648
518	req->type = REQ_READAHEAD;	649	req->type = REQ_READAHEAD;
		650	req->fh = newSVsv (fh);
519	req->fd = PerlIO_fileno (fh);	651	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
520	req->offset = offset;	652	req->offset = offset;
521	req->length = length;	653	req->length = length;
522	req->callback = SvREFCNT_inc (callback);
523		654
524	send_req (req);	655	send_req (req);
525	}	656	}
526		657
527	void	658	void
…		…
531	ALIAS:	662	ALIAS:
532	aio_stat = REQ_STAT	663	aio_stat = REQ_STAT
533	aio_lstat = REQ_LSTAT	664	aio_lstat = REQ_LSTAT
534	CODE:	665	CODE:
535	{	666	{
536	aio_req req;	667	dREQ;
537
538	Newz (0, req, 1, aio_cb);
539
540	if (!req)
541	croak ("out of memory during aio_req allocation");
542		668
543	New (0, req->statdata, 1, Stat_t);	669	New (0, req->statdata, 1, Stat_t);
544
545	if (!req->statdata)	670	if (!req->statdata)
		671	{
		672	free_req (req);
546	croak ("out of memory during aio_req->statdata allocation");	673	croak ("out of memory during aio_req->statdata allocation");
		674	}
547		675
548	if (SvPOK (fh_or_path))	676	if (SvPOK (fh_or_path))
549	{	677	{
550	req->type = ix;	678	req->type = ix;
551	req->data = newSVsv (fh_or_path);	679	req->data = newSVsv (fh_or_path);
552	req->dataptr = SvPV_nolen (req->data);	680	req->dataptr = SvPVbyte_nolen (req->data);
553	}	681	}
554	else	682	else
555	{	683	{
556	req->type = REQ_FSTAT;	684	req->type = REQ_FSTAT;
		685	req->fh = newSVsv (fh_or_path);
557	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	686	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
558	}	687	}
559
560	req->callback = SvREFCNT_inc (callback);
561		688
562	send_req (req);	689	send_req (req);
563	}	690	}
564		691
565	void	692	void
566	aio_unlink(pathname,callback=&PL_sv_undef)	693	aio_unlink(pathname,callback=&PL_sv_undef)
567	SV * pathname	694	SV * pathname
568	SV * callback	695	SV * callback
		696	ALIAS:
		697	aio_unlink = REQ_UNLINK
		698	aio_rmdir = REQ_RMDIR
569	CODE:	699	CODE:
570	{	700	{
571	aio_req req;	701	dREQ;
572		702
573	Newz (0, req, 1, aio_cb);	703	req->type = ix;
		704	req->data = newSVsv (pathname);
		705	req->dataptr = SvPVbyte_nolen (req->data);
574		706
575	if (!req)	707	send_req (req);
576	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;
577		718
578	req->type = REQ_UNLINK;	719	req->type = REQ_SYMLINK;
		720	req->fh = newSVsv (oldpath);
		721	req->data2ptr = SvPVbyte_nolen (req->fh);
579	req->data = newSVsv (pathname);	722	req->data = newSVsv (newpath);
580	req->dataptr = SvPV_nolen (req->data);	723	req->dataptr = SvPVbyte_nolen (req->data);
581	req->callback = SvREFCNT_inc (callback);
582		724
583	send_req (req);	725	send_req (req);
584	}	726	}
585		727
586	void	728	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.11 by root, Wed Jul 20 21:55:27 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 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.27 by root, Wed Aug 17 04:47:02 2005 UTC