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

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.19 by root, Fri May 7 00:57:29 2004 UTC vs.
Revision 1.26 by root, Thu Jul 7 23:17:23 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
18	#ifndef __NR_pread64	19	// 128 seems to be enough most everywhere. alpha needs 256.
19	# define __NR_pread64 __NR_pread	20	#define STACKSIZE (256 * sizeof (long))
20	#endif
21	#ifndef __NR_pwrite64
22	# define __NR_pwrite64 __NR_pwrite
23	#endif
24		21
25	#define STACKSIZE 1024 /* yeah */	22	enum {
26		23	REQ_QUIT,
27	enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT};	24	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
		25	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
		26	};
28		27
29	typedef struct {	28	typedef struct {
30	char stack[STACKSIZE];	29	char stack[STACKSIZE];
31	} aio_thread;	30	} aio_thread;
32		31
…		…
44	int errorno;	43	int errorno;
45	SV data, callback;	44	SV data, callback;
46	void *dataptr;	45	void *dataptr;
47	STRLEN dataoffset;	46	STRLEN dataoffset;
48		47
49	struct stat64 *statdata;	48	Stat_t *statdata;
50	} aio_cb;	49	} aio_cb;
51		50
52	typedef aio_cb *aio_req;	51	typedef aio_cb *aio_req;
53		52
54	static int started;	53	static int started;
…		…
65	aio_thread *thr;	64	aio_thread *thr;
66		65
67	New (0, thr, 1, aio_thread);	66	New (0, thr, 1, aio_thread);
68		67
69	if (clone (aio_proc,	68	if (clone (aio_proc,
70	&(thr->stack[STACKSIZE]),	69	&(thr->stack[STACKSIZE - sizeof (long)]),
71	CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND,	70	CLONE_VM\|CLONE_FS\|CLONE_FILES,
72	thr) >= 0)	71	thr) >= 0)
73	started++;	72	started++;
74	else	73	else
75	Safefree (thr);	74	Safefree (thr);
76	}	75	}
…		…
91	{	90	{
92	nreqs++;	91	nreqs++;
93	req->next = 0;	92	req->next = 0;
94		93
95	if (qe)	94	if (qe)
		95	{
96	qe->next = req;	96	qe->next = req;
		97	qe = req;
		98	}
97	else	99	else
98	qe = qs = req;	100	qe = qs = req;
99		101
100	send_reqs ();	102	send_reqs ();
101	}	103	}
…		…
157	req->callback = SvREFCNT_inc (callback);	159	req->callback = SvREFCNT_inc (callback);
158		160
159	send_req (req);	161	send_req (req);
160	}	162	}
161		163
		164	static void
		165	poll_wait ()
		166	{
		167	fd_set rfd;
		168	FD_ZERO(&rfd);
		169	FD_SET(respipe[0], &rfd);
		170
		171	select (respipe[0] + 1, &rfd, 0, 0, 0);
		172	}
		173
162	static int	174	static int
163	poll_cb (pTHX)	175	poll_cb (pTHX)
164	{	176	{
165	dSP;	177	dSP;
166	int count = 0;	178	int count = 0;
167	aio_req req;	179	aio_req req;
168		180
169	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	181	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
170	{	182	{
		183	nreqs--;
		184
171	if (req->type == REQ_QUIT)	185	if (req->type == REQ_QUIT)
172	{	186	{
173	Safefree (req->thread);	187	Safefree (req->thread);
174	started--;	188	started--;
175	}	189	}
…		…
185	if (req->data)	199	if (req->data)
186	SvREFCNT_dec (req->data);	200	SvREFCNT_dec (req->data);
187		201
188	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	202	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
189	{	203	{
190	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	204	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
191	PL_laststatval = req->result;	205	PL_laststatval = req->result;
192	PL_statcache.st_dev = req->statdata->st_dev;	206	PL_statcache = *(req->statdata);
193	PL_statcache.st_ino = req->statdata->st_ino;
194	PL_statcache.st_mode = req->statdata->st_mode;
195	PL_statcache.st_nlink = req->statdata->st_nlink;
196	PL_statcache.st_uid = req->statdata->st_uid;
197	PL_statcache.st_gid = req->statdata->st_gid;
198	PL_statcache.st_rdev = req->statdata->st_rdev;
199	PL_statcache.st_size = req->statdata->st_size;
200	PL_statcache.st_atime = req->statdata->st_atime;
201	PL_statcache.st_mtime = req->statdata->st_mtime;
202	PL_statcache.st_ctime = req->statdata->st_ctime;
203	PL_statcache.st_blksize = req->statdata->st_blksize;
204	PL_statcache.st_blocks = req->statdata->st_blocks;
205		207
206	Safefree (req->statdata);	208	Safefree (req->statdata);
207	}	209	}
208		210
209	PUSHMARK (SP);	211	PUSHMARK (SP);
…		…
214		216
215	if (req->callback)	217	if (req->callback)
216	SvREFCNT_dec (req->callback);	218	SvREFCNT_dec (req->callback);
217		219
218	errno = errorno;	220	errno = errorno;
219	nreqs--;
220	count++;	221	count++;
221	}	222	}
222		223
223	Safefree (req);	224	Safefree (req);
224	}	225	}
…		…
231		232
232	static sigset_t fullsigset;	233	static sigset_t fullsigset;
233		234
234	#undef errno	235	#undef errno
235	#include <asm/unistd.h>	236	#include <asm/unistd.h>
		237	#include <sys/prctl.h>
		238
		239	#if BYTE_ORDER == LITTLE_ENDIAN
		240	# define LONG_LONG_PAIR(HI, LO) LO, HI
		241	#elif BYTE_ORDER == BIG_ENDIAN
		242	# define LONG_LONG_PAIR(HI, LO) HI, LO
		243	#endif
		244
		245	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		246	# define stat kernelstat
		247	# define stat64 kernelstat64
		248	# include <asm/stat.h>
		249	# undef stat
		250	# undef stat64
		251	#else
		252	# define kernelstat stat
		253	# define kernelstat64 stat64
		254	#endif
		255
		256	#define COPY_STATDATA \
		257	req->statdata->st_dev = statdata.st_dev; \
		258	req->statdata->st_ino = statdata.st_ino; \
		259	req->statdata->st_mode = statdata.st_mode; \
		260	req->statdata->st_nlink = statdata.st_nlink; \
		261	req->statdata->st_uid = statdata.st_uid; \
		262	req->statdata->st_gid = statdata.st_gid; \
		263	req->statdata->st_rdev = statdata.st_rdev; \
		264	req->statdata->st_size = statdata.st_size; \
		265	req->statdata->st_atime = statdata.st_atime; \
		266	req->statdata->st_mtime = statdata.st_mtime; \
		267	req->statdata->st_ctime = statdata.st_ctime; \
		268	req->statdata->st_blksize = statdata.st_blksize; \
		269	req->statdata->st_blocks = statdata.st_blocks; \
236		270
237	static int	271	static int
238	aio_proc (void *thr_arg)	272	aio_proc (void *thr_arg)
239	{	273	{
240	aio_thread *thr = thr_arg;	274	aio_thread *thr = thr_arg;
241	aio_req req;	275	aio_req req;
242	int errno;	276	int errno;
243		277
244	/* this is very much x86 and kernel-specific :(:(:( */	278	/* this is very much kernel-specific :(:(:( */
245	/* we rely on gcc's ability to create closures. */	279	/* we rely on gcc's ability to create closures. */
246	_syscall3(int,read,int,fd,char *,buf,size_t,count)	280	_syscall3(int,read,int,fd,char *,buf,size_t,count)
247	_syscall3(int,write,int,fd,char *,buf,size_t,count)	281	_syscall3(int,write,int,fd,char *,buf,size_t,count)
248		282
249	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	283	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
250	_syscall1(int,close,int,fd)	284	_syscall1(int,close,int,fd)
251		285
		286	#if __NR_pread64
252	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	287	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
253	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	288	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
		289	#elif __NR_pread
		290	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
		291	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
		292	#else
		293	# error "neither pread nor pread64 defined"
		294	#endif
254		295
		296
		297	#if __NR_stat64
255	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	298	_syscall2(int,stat64, const char , filename, struct kernelstat64 , buf)
256	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	299	_syscall2(int,lstat64, const char , filename, struct kernelstat64 , buf)
257	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	300	_syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf)
		301	#elif __NR_stat
		302	_syscall2(int,stat, const char , filename, struct kernelstat , buf)
		303	_syscall2(int,lstat, const char , filename, struct kernelstat , buf)
		304	_syscall2(int,fstat, int, fd, struct kernelstat *, buf)
		305	#else
		306	# error "neither stat64 nor stat defined"
		307	#endif
		308
		309	_syscall1(int,unlink, char *, filename);
258		310
259	sigprocmask (SIG_SETMASK, &fullsigset, 0);	311	sigprocmask (SIG_SETMASK, &fullsigset, 0);
		312	prctl (PR_SET_PDEATHSIG, SIGKILL);
260		313
261	/* then loop */	314	/* then loop */
262	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	315	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
263	{	316	{
264	req->thread = thr;	317	req->thread = thr;
265	errno = 0; /* strictly unnecessary */	318	errno = 0; /* strictly unnecessary */
266		319
267	switch (req->type)	320	switch (req->type)
268	{	321	{
		322	#if __NR_pread64
		323	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length,
		324	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		325	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length,
		326	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		327	#else
269	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	328	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
270	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	329	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
		330	#endif
		331	#if __NR_stat64
		332	struct kernelstat64 statdata;
		333	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		334	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		335	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
		336	#else
		337	struct kernelstat statdata;
		338	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		339	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		340	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
		341	#endif
271	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	342	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
272	case REQ_CLOSE: req->result = close (req->fd); break;	343	case REQ_CLOSE: req->result = close (req->fd); break;
273	case REQ_STAT: req->result = stat64 (req->dataptr, req->statdata); break;
274	case REQ_LSTAT: req->result = lstat64 (req->dataptr, req->statdata); break;	344	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
275	case REQ_FSTAT: req->result = fstat64 (req->fd, req->statdata); break;
276		345
277	case REQ_QUIT:	346	case REQ_QUIT:
278	default:	347	default:
279	write (respipe[1], (void *)&req, sizeof (req));	348	write (respipe[1], (void *)&req, sizeof (req));
280	return 0;	349	return 0;
…		…
327	cur--;	396	cur--;
328	}	397	}
329		398
330	while (started > nthreads)	399	while (started > nthreads)
331	{	400	{
332	fd_set rfd;	401	poll_wait ();
333	FD_ZERO(&rfd);
334	FD_SET(respipe[0], &rfd);
335
336	select (respipe[0] + 1, &rfd, 0, 0, 0);
337	poll_cb (aTHX);	402	poll_cb (aTHX);
338	}	403	}
339		404
340	void	405	void
341	aio_open(pathname,flags,mode,callback)	406	aio_open(pathname,flags,mode,callback)
…		…
417	Newz (0, req, 1, aio_cb);	482	Newz (0, req, 1, aio_cb);
418		483
419	if (!req)	484	if (!req)
420	croak ("out of memory during aio_req allocation");	485	croak ("out of memory during aio_req allocation");
421		486
422	New (0, req->statdata, 1, struct stat64);	487	New (0, req->statdata, 1, Stat_t);
423		488
424	if (!req->statdata)	489	if (!req->statdata)
425	croak ("out of memory during aio_req->statdata allocation");	490	croak ("out of memory during aio_req->statdata allocation");
426		491
427	if (SvPOK (fh_or_path))	492	if (SvPOK (fh_or_path))
…		…
438		503
439	req->callback = SvREFCNT_inc (callback);	504	req->callback = SvREFCNT_inc (callback);
440		505
441	send_req (req);	506	send_req (req);
442		507
		508	void
		509	aio_unlink(pathname,callback)
		510	SV * pathname
		511	SV * callback
		512	PROTOTYPE: $$
		513	CODE:
		514	aio_req req;
		515
		516	Newz (0, req, 1, aio_cb);
		517
		518	if (!req)
		519	croak ("out of memory during aio_req allocation");
		520
		521	req->type = REQ_UNLINK;
		522	req->data = newSVsv (pathname);
		523	req->dataptr = SvPV_nolen (req->data);
		524	req->callback = SvREFCNT_inc (callback);
		525
		526	send_req (req);
		527
443	int	528	int
444	poll_fileno()	529	poll_fileno()
445	PROTOTYPE:	530	PROTOTYPE:
446	CODE:	531	CODE:
447	RETVAL = respipe[0];	532	RETVAL = respipe[0];
…		…
454	CODE:	539	CODE:
455	RETVAL = poll_cb (aTHX);	540	RETVAL = poll_cb (aTHX);
456	OUTPUT:	541	OUTPUT:
457	RETVAL	542	RETVAL
458		543
		544	void
		545	poll_wait()
		546	PROTOTYPE:
		547	CODE:
		548	poll_wait ();
		549
459	int	550	int
460	nreqs()	551	nreqs()
461	PROTOTYPE:	552	PROTOTYPE:
462	CODE:	553	CODE:
463	RETVAL = nreqs;	554	RETVAL = nreqs;

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.19 by root, Fri May 7 00:57:29 2004 UTC vs. Revision 1.26 by root, Thu Jul 7 23:17:23 2005 UTC

Diff Legend

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.19 by root, Fri May 7 00:57:29 2004 UTC vs.
Revision 1.26 by root, Thu Jul 7 23:17:23 2005 UTC