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

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.22 by root, Wed Jun 29 15:22:36 2005 UTC vs.
Revision 1.32 by root, Tue Jul 12 10:51:09 2005 UTC

…		…
8	#include <sys/stat.h>	8	#include <sys/stat.h>
9	#include <unistd.h>	9	#include <unistd.h>
10	#include <fcntl.h>	10	#include <fcntl.h>
11	#include <signal.h>	11	#include <signal.h>
12	#include <sched.h>	12	#include <sched.h>
		13	#include <endian.h>
13		14
14	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	15	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
15	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	16	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
16	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	17	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
17		18
		19	#if __i386 \|\| __amd64
		20	# define STACKSIZE ( 256 * sizeof (long))
		21	#elif __ia64
18	#define STACKSIZE (128 * sizeof (long)) /* yeah */	22	# define STACKSIZE (8192 * sizeof (long))
		23	#else
		24	# define STACKSIZE ( 512 * sizeof (long))
		25	#endif
19		26
20	enum {	27	enum {
21	REQ_QUIT,	28	REQ_QUIT,
22	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,	29	REQ_OPEN, REQ_CLOSE,
		30	REQ_READ, REQ_WRITE, REQ_READAHEAD,
23	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK	31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
		32	REQ_FSYNC, REQ_FDATASYNC,
24	};	33	};
25		34
26	typedef struct {	35	typedef struct {
27	char stack[STACKSIZE];	36	char stack[STACKSIZE];
28	} aio_thread;	37	} aio_thread;
…		…
62	aio_thread *thr;	71	aio_thread *thr;
63		72
64	New (0, thr, 1, aio_thread);	73	New (0, thr, 1, aio_thread);
65		74
66	if (clone (aio_proc,	75	if (clone (aio_proc,
67	&(thr->stack[STACKSIZE - sizeof (long)]),	76	&(thr->stack[STACKSIZE - 16]),
68	CLONE_VM\|CLONE_FS\|CLONE_FILES,	77	CLONE_VM\|CLONE_FS\|CLONE_FILES,
69	thr) >= 0)	78	thr) >= 0)
70	started++;	79	started++;
71	else	80	else
72	Safefree (thr);	81	Safefree (thr);
…		…
160	}	169	}
161		170
162	static void	171	static void
163	poll_wait ()	172	poll_wait ()
164	{	173	{
		174	if (!nreqs)
		175	return;
		176
165	fd_set rfd;	177	fd_set rfd;
166	FD_ZERO(&rfd);	178	FD_ZERO(&rfd);
167	FD_SET(respipe[0], &rfd);	179	FD_SET(respipe[0], &rfd);
168		180
169	select (respipe[0] + 1, &rfd, 0, 0, 0);	181	select (respipe[0] + 1, &rfd, 0, 0, 0);
…		…
229	}	241	}
230		242
231	static sigset_t fullsigset;	243	static sigset_t fullsigset;
232		244
233	#undef errno	245	#undef errno
234	#include <asm/unistd.h>	246	#include <linux/unistd.h>
		247	#include <linux/types.h>
235	#include <sys/prctl.h>	248	#include <sys/prctl.h>
		249
		250	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		251	# define stat kernelstat
		252	# define stat64 kernelstat64
		253	# include <asm/stat.h>
		254	# undef stat
		255	# undef stat64
		256	#else
		257	# define kernelstat stat
		258	# define kernelstat64 stat64
		259	#endif
236		260
237	#define COPY_STATDATA \	261	#define COPY_STATDATA \
238	req->statdata->st_dev = statdata.st_dev; \	262	req->statdata->st_dev = statdata.st_dev; \
239	req->statdata->st_ino = statdata.st_ino; \	263	req->statdata->st_ino = statdata.st_ino; \
240	req->statdata->st_mode = statdata.st_mode; \	264	req->statdata->st_mode = statdata.st_mode; \
…		…
256	aio_req req;	280	aio_req req;
257	int errno;	281	int errno;
258		282
259	/* this is very much kernel-specific :(:(:( */	283	/* this is very much kernel-specific :(:(:( */
260	/* we rely on gcc's ability to create closures. */	284	/* we rely on gcc's ability to create closures. */
261	_syscall3(int,read,int,fd,char *,buf,size_t,count)	285	_syscall3(__kernel_size_t, read , unsigned int, fd, char *, buf, __kernel_size_t, count)
262	_syscall3(int,write,int,fd,char *,buf,size_t,count)	286	_syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
263		287
264	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	288	_syscall3(long, open, char *, pathname, int, flags, int, mode)
265	_syscall1(int,close,int,fd)	289	_syscall1(long, close, unsigned int, fd)
		290	_syscall1(long, unlink, char *, filename);
		291	_syscall1(long, fsync, unsigned int, fd);
266		292
267	#ifdef __NR_pread64	293	#ifndef __NR_fdatasync
268	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	294	# define __NR_fdatasync __NR_fsync
269	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
270	#elif __NR_pread
271	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
272	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
273	#else
274	# error "neither pread nor pread64 defined"
275	#endif	295	#endif
		296	_syscall1(long, fdatasync, unsigned int, fd);
276		297
		298	#if BYTE_ORDER == LITTLE_ENDIAN
		299	# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
		300	#elif BYTE_ORDER == BIG_ENDIAN
		301	# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
		302	#endif
277		303
		304	#ifndef __NR_pread64
		305	# define __NR_pread64 __NR_pread
		306	# define __NR_pwrite64 __NR_write
		307	#endif
		308	_syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
		309	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		310	_syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
		311	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		312	_syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
		313
278	#ifdef __NR_stat64	314	#if __NR_stat64
279	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	315	_syscall2(long, stat64 , const char , filename, struct kernelstat64 , buf)
280	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	316	_syscall2(long, lstat64, const char , filename, struct kernelstat64 , buf)
281	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	317	_syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
282	#elif __NR_stat	318	#elif __NR_stat
283	_syscall2(int,stat, const char , filename, struct stat , buf)	319	_syscall2(long, stat , const char , filename, struct kernelstat , buf)
284	_syscall2(int,lstat, const char , filename, struct stat , buf)	320	_syscall2(long, lstat, const char , filename, struct kernelstat , buf)
285	_syscall2(int,fstat, int, fd, struct stat *, buf)	321	_syscall2(long, fstat, int , fd , struct kernelstat *, buf)
286	#else	322	#else
287	# error "neither stat64 nor stat defined"	323	# error "neither stat64 nor stat defined"
288	#endif	324	#endif
289		325
290	_syscall1(int,unlink, char *, filename);	326	/* the following two calls might clobber errno */
291
292	sigprocmask (SIG_SETMASK, &fullsigset, 0);	327	sigprocmask (SIG_SETMASK, &fullsigset, 0);
293	prctl (PR_SET_PDEATHSIG, SIGKILL);	328	prctl (PR_SET_PDEATHSIG, SIGKILL);
294		329
295	/* then loop */	330	/* then loop */
296	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	331	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
…		…
298	req->thread = thr;	333	req->thread = thr;
299	errno = 0; /* strictly unnecessary */	334	errno = 0; /* strictly unnecessary */
300		335
301	switch (req->type)	336	switch (req->type)
302	{	337	{
303	#ifdef __NR_pread64
304	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	338	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
305	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	339	case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
		340	case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
		341
		342	#if __NR_stat64
		343	struct kernelstat64 statdata;
		344	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		345	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		346	case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
306	#else	347	#else
307	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	348	struct kernelstat statdata;
308	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	349	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		350	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		351	case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
309	#endif	352	#endif
310	#ifdef __NR_stat64	353
311	struct stat64 statdata;
312	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
313	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
314	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
315	#else
316	struct stat statdata;
317	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
318	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
319	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
320	#endif
321	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	354	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
322	case REQ_CLOSE: req->result = close (req->fd); break;	355	case REQ_CLOSE: req->result = close (req->fd); break;
323	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	356	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		357
		358	case REQ_FSYNC: req->result = fsync (req->fd); break;
		359	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
324		360
325	case REQ_QUIT:	361	case REQ_QUIT:
326	default:
327	write (respipe[1], (void *)&req, sizeof (req));	362	write (respipe[1], (void *)&req, sizeof (req));
328	return 0;	363	return 0;
		364
		365	default:
		366	req->result = ENOSYS;
		367	break;
329	}	368	}
330		369
331	req->errorno = errno;	370	req->errorno = errno;
332	write (respipe[1], (void *)&req, sizeof (req));	371	write (respipe[1], (void *)&req, sizeof (req));
333	}	372	}
…		…
366	void	405	void
367	max_parallel(nthreads)	406	max_parallel(nthreads)
368	int nthreads	407	int nthreads
369	PROTOTYPE: $	408	PROTOTYPE: $
370	CODE:	409	CODE:
		410	{
371	int cur = started;	411	int cur = started;
372	while (cur > nthreads)	412	while (cur > nthreads)
373	{	413	{
374	end_thread ();	414	end_thread ();
375	cur--;	415	cur--;
…		…
378	while (started > nthreads)	418	while (started > nthreads)
379	{	419	{
380	poll_wait ();	420	poll_wait ();
381	poll_cb (aTHX);	421	poll_cb (aTHX);
382	}	422	}
		423	}
383		424
384	void	425	void
385	aio_open(pathname,flags,mode,callback)	426	aio_open(pathname,flags,mode,callback)
386	SV * pathname	427	SV * pathname
387	int flags	428	int flags
388	int mode	429	int mode
389	SV * callback	430	SV * callback
390	PROTOTYPE: $$$$	431	PROTOTYPE: $$$$
391	CODE:	432	CODE:
		433	{
392	aio_req req;	434	aio_req req;
393		435
394	Newz (0, req, 1, aio_cb);	436	Newz (0, req, 1, aio_cb);
395		437
396	if (!req)	438	if (!req)
…		…
402	req->fd = flags;	444	req->fd = flags;
403	req->mode = mode;	445	req->mode = mode;
404	req->callback = SvREFCNT_inc (callback);	446	req->callback = SvREFCNT_inc (callback);
405		447
406	send_req (req);	448	send_req (req);
		449	}
407		450
408	void	451	void
409	aio_close(fh,callback)	452	aio_close(fh,callback)
410	InputStream fh	453	InputStream fh
411	SV * callback	454	SV * callback
412	PROTOTYPE: $$	455	PROTOTYPE: $$
		456	ALIAS:
		457	aio_close = REQ_CLOSE
		458	aio_fsync = REQ_FSYNC
		459	aio_fdatasync = REQ_FDATASYNC
413	CODE:	460	CODE:
		461	{
414	aio_req req;	462	aio_req req;
415		463
416	Newz (0, req, 1, aio_cb);	464	Newz (0, req, 1, aio_cb);
417		465
418	if (!req)	466	if (!req)
419	croak ("out of memory during aio_req allocation");	467	croak ("out of memory during aio_req allocation");
420		468
421	req->type = REQ_CLOSE;	469	req->type = ix;
422	req->fd = PerlIO_fileno (fh);	470	req->fd = PerlIO_fileno (fh);
423	req->callback = SvREFCNT_inc (callback);	471	req->callback = SvREFCNT_inc (callback);
424		472
425	send_req (req);	473	send_req (req);
		474	}
426		475
427	void	476	void
428	aio_read(fh,offset,length,data,dataoffset,callback)	477	aio_read(fh,offset,length,data,dataoffset,callback)
429	InputStream fh	478	InputStream fh
430	UV offset	479	UV offset
…		…
447	PROTOTYPE: $$$$$$	496	PROTOTYPE: $$$$$$
448	CODE:	497	CODE:
449	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	498	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
450		499
451	void	500	void
		501	aio_readahead(fh,offset,length,callback)
		502	InputStream fh
		503	UV offset
		504	IV length
		505	SV * callback
		506	PROTOTYPE: $$$$
		507	CODE:
		508	{
		509	aio_req req;
		510
		511	if (length < 0)
		512	croak ("length must not be negative");
		513
		514	Newz (0, req, 1, aio_cb);
		515
		516	if (!req)
		517	croak ("out of memory during aio_req allocation");
		518
		519	req->type = REQ_READAHEAD;
		520	req->fd = PerlIO_fileno (fh);
		521	req->offset = offset;
		522	req->length = length;
		523	req->callback = SvREFCNT_inc (callback);
		524
		525	send_req (req);
		526	}
		527
		528	void
452	aio_stat(fh_or_path,callback)	529	aio_stat(fh_or_path,callback)
453	SV * fh_or_path	530	SV * fh_or_path
454	SV * callback	531	SV * callback
455	PROTOTYPE: $$	532	PROTOTYPE: $$
456	ALIAS:	533	ALIAS:
457	aio_lstat = 1	534	aio_lstat = 1
458	CODE:	535	CODE:
		536	{
459	aio_req req;	537	aio_req req;
460		538
461	Newz (0, req, 1, aio_cb);	539	Newz (0, req, 1, aio_cb);
462		540
463	if (!req)	541	if (!req)
…		…
481	}	559	}
482		560
483	req->callback = SvREFCNT_inc (callback);	561	req->callback = SvREFCNT_inc (callback);
484		562
485	send_req (req);	563	send_req (req);
		564	}
486		565
487	void	566	void
488	aio_unlink(pathname,callback)	567	aio_unlink(pathname,callback)
489	SV * pathname	568	SV * pathname
490	SV * callback	569	SV * callback
491	PROTOTYPE: $$	570	PROTOTYPE: $$
492	CODE:	571	CODE:
		572	{
493	aio_req req;	573	aio_req req;
494		574
495	Newz (0, req, 1, aio_cb);	575	Newz (0, req, 1, aio_cb);
496		576
497	if (!req)	577	if (!req)
…		…
501	req->data = newSVsv (pathname);	581	req->data = newSVsv (pathname);
502	req->dataptr = SvPV_nolen (req->data);	582	req->dataptr = SvPV_nolen (req->data);
503	req->callback = SvREFCNT_inc (callback);	583	req->callback = SvREFCNT_inc (callback);
504		584
505	send_req (req);	585	send_req (req);
		586	}
506		587
507	int	588	int
508	poll_fileno()	589	poll_fileno()
509	PROTOTYPE:	590	PROTOTYPE:
510	CODE:	591	CODE:
…		…
518	CODE:	599	CODE:
519	RETVAL = poll_cb (aTHX);	600	RETVAL = poll_cb (aTHX);
520	OUTPUT:	601	OUTPUT:
521	RETVAL	602	RETVAL
522		603
		604	void
		605	poll_wait()
		606	PROTOTYPE:
		607	CODE:
		608	poll_wait ();
		609
523	int	610	int
524	nreqs()	611	nreqs()
525	PROTOTYPE:	612	PROTOTYPE:
526	CODE:	613	CODE:
527	RETVAL = nreqs;	614	RETVAL = nreqs;

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.22 by root, Wed Jun 29 15:22:36 2005 UTC vs. Revision 1.32 by root, Tue Jul 12 10:51:09 2005 UTC

Diff Legend

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.22 by root, Wed Jun 29 15:22:36 2005 UTC vs.
Revision 1.32 by root, Tue Jul 12 10:51:09 2005 UTC