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

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.23 by root, Wed Jun 29 15:28:14 2005 UTC vs.
Revision 1.31 by root, Sun Jul 10 01:02:51 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);
…		…
230		239
231	static sigset_t fullsigset;	240	static sigset_t fullsigset;
232		241
233	#undef errno	242	#undef errno
234	#include <asm/unistd.h>	243	#include <asm/unistd.h>
		244	#include <linux/types.h>
235	#include <sys/prctl.h>	245	#include <sys/prctl.h>
		246
		247	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		248	# define stat kernelstat
		249	# define stat64 kernelstat64
		250	# include <asm/stat.h>
		251	# undef stat
		252	# undef stat64
		253	#else
		254	# define kernelstat stat
		255	# define kernelstat64 stat64
		256	#endif
236		257
237	#define COPY_STATDATA \	258	#define COPY_STATDATA \
238	req->statdata->st_dev = statdata.st_dev; \	259	req->statdata->st_dev = statdata.st_dev; \
239	req->statdata->st_ino = statdata.st_ino; \	260	req->statdata->st_ino = statdata.st_ino; \
240	req->statdata->st_mode = statdata.st_mode; \	261	req->statdata->st_mode = statdata.st_mode; \
…		…
256	aio_req req;	277	aio_req req;
257	int errno;	278	int errno;
258		279
259	/* this is very much kernel-specific :(:(:( */	280	/* this is very much kernel-specific :(:(:( */
260	/* we rely on gcc's ability to create closures. */	281	/* we rely on gcc's ability to create closures. */
261	_syscall3(int,read,int,fd,char *,buf,size_t,count)	282	_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)	283	_syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
263		284
264	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	285	_syscall3(long, open, char *, pathname, int, flags, int, mode)
265	_syscall1(int,close,int,fd)	286	_syscall1(long, close, unsigned int, fd)
		287	_syscall1(long, unlink, char *, filename);
		288	_syscall1(long, fsync, unsigned int, fd);
266		289
267	#ifdef __NR_pread64	290	#ifndef __NR_fdatasync
268	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	291	# 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	292	#endif
		293	_syscall1(long, fdatasync, unsigned int, fd);
276		294
		295	#if BYTE_ORDER == LITTLE_ENDIAN
		296	# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
		297	#elif BYTE_ORDER == BIG_ENDIAN
		298	# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
		299	#endif
277		300
		301	#ifndef __NR_pread64
		302	# define __NR_pread64 __NR_pread
		303	# define __NR_pwrite64 __NR_write
		304	#endif
		305	_syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
		306	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		307	_syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
		308	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		309	_syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
		310
278	#ifdef __NR_stat64	311	#if __NR_stat64
279	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	312	_syscall2(long, stat64 , const char , filename, struct kernelstat64 , buf)
280	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	313	_syscall2(long, lstat64, const char , filename, struct kernelstat64 , buf)
281	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	314	_syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
282	#elif __NR_stat	315	#elif __NR_stat
283	_syscall2(int,stat, const char , filename, struct stat , buf)	316	_syscall2(long, stat , const char , filename, struct kernelstat , buf)
284	_syscall2(int,lstat, const char , filename, struct stat , buf)	317	_syscall2(long, lstat, const char , filename, struct kernelstat , buf)
285	_syscall2(int,fstat, int, fd, struct stat *, buf)	318	_syscall2(long, fstat, int , fd , struct kernelstat *, buf)
286	#else	319	#else
287	# error "neither stat64 nor stat defined"	320	# error "neither stat64 nor stat defined"
288	#endif	321	#endif
289		322
290	_syscall1(int,unlink, char *, filename);	323	/* the following two calls might clobber errno */
291
292	sigprocmask (SIG_SETMASK, &fullsigset, 0);	324	sigprocmask (SIG_SETMASK, &fullsigset, 0);
293	prctl (PR_SET_PDEATHSIG, SIGKILL);	325	prctl (PR_SET_PDEATHSIG, SIGKILL);
294		326
295	/* then loop */	327	/* then loop */
296	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	328	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
…		…
298	req->thread = thr;	330	req->thread = thr;
299	errno = 0; /* strictly unnecessary */	331	errno = 0; /* strictly unnecessary */
300		332
301	switch (req->type)	333	switch (req->type)
302	{	334	{
303	#ifdef __NR_pread64
304	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	335	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;	336	case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
		337	case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
		338
		339	#if __NR_stat64
		340	struct kernelstat64 statdata;
		341	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		342	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		343	case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
306	#else	344	#else
307	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	345	struct kernelstat statdata;
308	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	346	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		347	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		348	case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
309	#endif	349	#endif
310	#ifdef __NR_stat64	350
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;	351	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
322	case REQ_CLOSE: req->result = close (req->fd); break;	352	case REQ_CLOSE: req->result = close (req->fd); break;
323	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	353	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		354
		355	case REQ_FSYNC: req->result = fsync (req->fd); break;
		356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
324		357
325	case REQ_QUIT:	358	case REQ_QUIT:
326	default:
327	write (respipe[1], (void *)&req, sizeof (req));	359	write (respipe[1], (void *)&req, sizeof (req));
328	return 0;	360	return 0;
		361
		362	default:
		363	req->result = ENOSYS;
		364	break;
329	}	365	}
330		366
331	req->errorno = errno;	367	req->errorno = errno;
332	write (respipe[1], (void *)&req, sizeof (req));	368	write (respipe[1], (void *)&req, sizeof (req));
333	}	369	}
…		…
366	void	402	void
367	max_parallel(nthreads)	403	max_parallel(nthreads)
368	int nthreads	404	int nthreads
369	PROTOTYPE: $	405	PROTOTYPE: $
370	CODE:	406	CODE:
		407	{
371	int cur = started;	408	int cur = started;
372	while (cur > nthreads)	409	while (cur > nthreads)
373	{	410	{
374	end_thread ();	411	end_thread ();
375	cur--;	412	cur--;
…		…
378	while (started > nthreads)	415	while (started > nthreads)
379	{	416	{
380	poll_wait ();	417	poll_wait ();
381	poll_cb (aTHX);	418	poll_cb (aTHX);
382	}	419	}
		420	}
383		421
384	void	422	void
385	aio_open(pathname,flags,mode,callback)	423	aio_open(pathname,flags,mode,callback)
386	SV * pathname	424	SV * pathname
387	int flags	425	int flags
388	int mode	426	int mode
389	SV * callback	427	SV * callback
390	PROTOTYPE: $$$$	428	PROTOTYPE: $$$$
391	CODE:	429	CODE:
		430	{
392	aio_req req;	431	aio_req req;
393		432
394	Newz (0, req, 1, aio_cb);	433	Newz (0, req, 1, aio_cb);
395		434
396	if (!req)	435	if (!req)
…		…
402	req->fd = flags;	441	req->fd = flags;
403	req->mode = mode;	442	req->mode = mode;
404	req->callback = SvREFCNT_inc (callback);	443	req->callback = SvREFCNT_inc (callback);
405		444
406	send_req (req);	445	send_req (req);
		446	}
407		447
408	void	448	void
409	aio_close(fh,callback)	449	aio_close(fh,callback)
410	InputStream fh	450	InputStream fh
411	SV * callback	451	SV * callback
412	PROTOTYPE: $$	452	PROTOTYPE: $$
		453	ALIAS:
		454	aio_close = REQ_CLOSE
		455	aio_fsync = REQ_FSYNC
		456	aio_fdatasync = REQ_FDATASYNC
413	CODE:	457	CODE:
		458	{
414	aio_req req;	459	aio_req req;
415		460
416	Newz (0, req, 1, aio_cb);	461	Newz (0, req, 1, aio_cb);
417		462
418	if (!req)	463	if (!req)
419	croak ("out of memory during aio_req allocation");	464	croak ("out of memory during aio_req allocation");
420		465
421	req->type = REQ_CLOSE;	466	req->type = ix;
422	req->fd = PerlIO_fileno (fh);	467	req->fd = PerlIO_fileno (fh);
423	req->callback = SvREFCNT_inc (callback);	468	req->callback = SvREFCNT_inc (callback);
424		469
425	send_req (req);	470	send_req (req);
		471	}
426		472
427	void	473	void
428	aio_read(fh,offset,length,data,dataoffset,callback)	474	aio_read(fh,offset,length,data,dataoffset,callback)
429	InputStream fh	475	InputStream fh
430	UV offset	476	UV offset
…		…
447	PROTOTYPE: $$$$$$	493	PROTOTYPE: $$$$$$
448	CODE:	494	CODE:
449	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	495	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
450		496
451	void	497	void
		498	aio_readahead(fh,offset,length,callback)
		499	InputStream fh
		500	UV offset
		501	IV length
		502	SV * callback
		503	PROTOTYPE: $$$$
		504	CODE:
		505	{
		506	aio_req req;
		507
		508	if (length < 0)
		509	croak ("length must not be negative");
		510
		511	Newz (0, req, 1, aio_cb);
		512
		513	if (!req)
		514	croak ("out of memory during aio_req allocation");
		515
		516	req->type = REQ_READAHEAD;
		517	req->fd = PerlIO_fileno (fh);
		518	req->offset = offset;
		519	req->length = length;
		520	req->callback = SvREFCNT_inc (callback);
		521
		522	send_req (req);
		523	}
		524
		525	void
452	aio_stat(fh_or_path,callback)	526	aio_stat(fh_or_path,callback)
453	SV * fh_or_path	527	SV * fh_or_path
454	SV * callback	528	SV * callback
455	PROTOTYPE: $$	529	PROTOTYPE: $$
456	ALIAS:	530	ALIAS:
457	aio_lstat = 1	531	aio_lstat = 1
458	CODE:	532	CODE:
		533	{
459	aio_req req;	534	aio_req req;
460		535
461	Newz (0, req, 1, aio_cb);	536	Newz (0, req, 1, aio_cb);
462		537
463	if (!req)	538	if (!req)
…		…
481	}	556	}
482		557
483	req->callback = SvREFCNT_inc (callback);	558	req->callback = SvREFCNT_inc (callback);
484		559
485	send_req (req);	560	send_req (req);
		561	}
486		562
487	void	563	void
488	aio_unlink(pathname,callback)	564	aio_unlink(pathname,callback)
489	SV * pathname	565	SV * pathname
490	SV * callback	566	SV * callback
491	PROTOTYPE: $$	567	PROTOTYPE: $$
492	CODE:	568	CODE:
		569	{
493	aio_req req;	570	aio_req req;
494		571
495	Newz (0, req, 1, aio_cb);	572	Newz (0, req, 1, aio_cb);
496		573
497	if (!req)	574	if (!req)
…		…
501	req->data = newSVsv (pathname);	578	req->data = newSVsv (pathname);
502	req->dataptr = SvPV_nolen (req->data);	579	req->dataptr = SvPV_nolen (req->data);
503	req->callback = SvREFCNT_inc (callback);	580	req->callback = SvREFCNT_inc (callback);
504		581
505	send_req (req);	582	send_req (req);
		583	}
506		584
507	int	585	int
508	poll_fileno()	586	poll_fileno()
509	PROTOTYPE:	587	PROTOTYPE:
510	CODE:	588	CODE:

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.23 by root, Wed Jun 29 15:28:14 2005 UTC vs. Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC

Diff Legend

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.23 by root, Wed Jun 29 15:28:14 2005 UTC vs.
Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC