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

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.18 by root, Thu May 6 15:05:57 2004 UTC vs.
Revision 1.24 by root, Sat Jul 2 13:16:33 2005 UTC

…		…
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		13
14	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	14	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 ;) */	15	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 ;) */	16	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
17		17
18	#ifndef __NR_pread64	18	#define STACKSIZE (128 * sizeof (long)) /* yeah */
19	# define __NR_pread64 __NR_pread
20	#endif
21	#ifndef __NR_pwrite64
22	# define __NR_pwrite64 __NR_pwrite
23	#endif
24		19
25	#define STACKSIZE 1024 /* yeah */	20	enum {
26		21	REQ_QUIT,
27	enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT};	22	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
		23	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
		24	};
28		25
29	typedef struct {	26	typedef struct {
30	char stack[STACKSIZE];	27	char stack[STACKSIZE];
31	} aio_thread;	28	} aio_thread;
32		29
…		…
44	int errorno;	41	int errorno;
45	SV data, callback;	42	SV data, callback;
46	void *dataptr;	43	void *dataptr;
47	STRLEN dataoffset;	44	STRLEN dataoffset;
48		45
49	struct stat64 *statdata;	46	Stat_t *statdata;
50	} aio_cb;	47	} aio_cb;
51		48
52	typedef aio_cb *aio_req;	49	typedef aio_cb *aio_req;
53		50
54	static int started;	51	static int started;
…		…
65	aio_thread *thr;	62	aio_thread *thr;
66		63
67	New (0, thr, 1, aio_thread);	64	New (0, thr, 1, aio_thread);
68		65
69	if (clone (aio_proc,	66	if (clone (aio_proc,
70	&(thr->stack[STACKSIZE]),	67	&(thr->stack[STACKSIZE - sizeof (long)]),
71	CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND,	68	CLONE_VM\|CLONE_FS\|CLONE_FILES,
72	thr) >= 0)	69	thr) >= 0)
73	started++;	70	started++;
74	else	71	else
75	Safefree (thr);	72	Safefree (thr);
76	}	73	}
…		…
91	{	88	{
92	nreqs++;	89	nreqs++;
93	req->next = 0;	90	req->next = 0;
94		91
95	if (qe)	92	if (qe)
		93	{
96	qe->next = req;	94	qe->next = req;
		95	qe = req;
		96	}
97	else	97	else
98	qe = qs = req;	98	qe = qs = req;
99		99
100	send_reqs ();	100	send_reqs ();
101	}	101	}
…		…
157	req->callback = SvREFCNT_inc (callback);	157	req->callback = SvREFCNT_inc (callback);
158		158
159	send_req (req);	159	send_req (req);
160	}	160	}
161		161
		162	static void
		163	poll_wait ()
		164	{
		165	fd_set rfd;
		166	FD_ZERO(&rfd);
		167	FD_SET(respipe[0], &rfd);
		168
		169	select (respipe[0] + 1, &rfd, 0, 0, 0);
		170	}
		171
162	static int	172	static int
163	poll_cb (pTHX)	173	poll_cb (pTHX)
164	{	174	{
165	dSP;	175	dSP;
166	int count = 0;	176	int count = 0;
167	aio_req req;	177	aio_req req;
168		178
169	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	179	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
170	{	180	{
		181	nreqs--;
		182
171	if (req->type == REQ_QUIT)	183	if (req->type == REQ_QUIT)
172	{	184	{
173	Safefree (req->thread);	185	Safefree (req->thread);
174	started--;	186	started--;
175	}	187	}
…		…
185	if (req->data)	197	if (req->data)
186	SvREFCNT_dec (req->data);	198	SvREFCNT_dec (req->data);
187		199
188	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	200	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
189	{	201	{
190	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	202	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
191	PL_laststatval = req->result;	203	PL_laststatval = req->result;
192	PL_statcache.st_dev = req->statdata->st_dev;	204	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		205
206	Safefree (req->statdata);	206	Safefree (req->statdata);
207	}	207	}
208		208
209	PUSHMARK (SP);	209	PUSHMARK (SP);
…		…
214		214
215	if (req->callback)	215	if (req->callback)
216	SvREFCNT_dec (req->callback);	216	SvREFCNT_dec (req->callback);
217		217
218	errno = errorno;	218	errno = errorno;
219	nreqs--;
220	count++;	219	count++;
221	}	220	}
222		221
223	Safefree (req);	222	Safefree (req);
224	}	223	}
225		224
226	if (qs)	225	if (qs)
227	{
228	printf ("outstanding %p %d\n", qs, nreqs);
229	send_reqs ();	226	send_reqs ();
230	}
231		227
232	return count;	228	return count;
233	}	229	}
234		230
235	static sigset_t fullsigset;	231	static sigset_t fullsigset;
236		232
237	#undef errno	233	#undef errno
238	#include <asm/unistd.h>	234	#include <asm/unistd.h>
		235	#include <sys/prctl.h>
		236
		237	#define COPY_STATDATA \
		238	req->statdata->st_dev = statdata.st_dev; \
		239	req->statdata->st_ino = statdata.st_ino; \
		240	req->statdata->st_mode = statdata.st_mode; \
		241	req->statdata->st_nlink = statdata.st_nlink; \
		242	req->statdata->st_uid = statdata.st_uid; \
		243	req->statdata->st_gid = statdata.st_gid; \
		244	req->statdata->st_rdev = statdata.st_rdev; \
		245	req->statdata->st_size = statdata.st_size; \
		246	req->statdata->st_atime = statdata.st_atime; \
		247	req->statdata->st_mtime = statdata.st_mtime; \
		248	req->statdata->st_ctime = statdata.st_ctime; \
		249	req->statdata->st_blksize = statdata.st_blksize; \
		250	req->statdata->st_blocks = statdata.st_blocks; \
239		251
240	static int	252	static int
241	aio_proc (void *thr_arg)	253	aio_proc (void *thr_arg)
242	{	254	{
243	aio_thread *thr = thr_arg;	255	aio_thread *thr = thr_arg;
244	aio_req req;	256	aio_req req;
245	int errno;	257	int errno;
246		258
247	/* this is very much x86 and kernel-specific :(:(:( */	259	/* this is very much kernel-specific :(:(:( */
248	/* we rely on gcc's ability to create closures. */	260	/* we rely on gcc's ability to create closures. */
249	_syscall3(int,read,int,fd,char *,buf,size_t,count)	261	_syscall3(int,read,int,fd,char *,buf,size_t,count)
250	_syscall3(int,write,int,fd,char *,buf,size_t,count)	262	_syscall3(int,write,int,fd,char *,buf,size_t,count)
251		263
252	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	264	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
253	_syscall1(int,close,int,fd)	265	_syscall1(int,close,int,fd)
254		266
		267	#define arch64 (__ia64 \|\| __alpha)
		268
		269	#ifdef __NR_pread64 && !arch64
255	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	270	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
256	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	271	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
		272	#elif __NR_pread
		273	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
		274	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
		275	#else
		276	# error "neither pread nor pread64 defined"
		277	#endif
257		278
		279
		280	#ifdef __NR_stat64 && !arch64
258	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	281	_syscall2(int,stat64, const char , filename, struct stat64 , buf)
259	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	282	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)
260	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	283	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)
		284	#elif __NR_stat
		285	_syscall2(int,stat, const char , filename, struct stat , buf)
		286	_syscall2(int,lstat, const char , filename, struct stat , buf)
		287	_syscall2(int,fstat, int, fd, struct stat *, buf)
		288	#else
		289	# error "neither stat64 nor stat defined"
		290	#endif
		291
		292	_syscall1(int,unlink, char *, filename);
261		293
262	sigprocmask (SIG_SETMASK, &fullsigset, 0);	294	sigprocmask (SIG_SETMASK, &fullsigset, 0);
		295	prctl (PR_SET_PDEATHSIG, SIGKILL);
263		296
264	/* then loop */	297	/* then loop */
265	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	298	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
266	{	299	{
267	req->thread = thr;	300	req->thread = thr;
268	errno = 0; /* strictly unnecessary */	301	errno = 0; /* strictly unnecessary */
269		302
270	switch (req->type)	303	switch (req->type)
271	{	304	{
		305	#ifdef __NR_pread64
272	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	306	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
273	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	307	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
		308	#else
		309	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
		310	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
		311	#endif
		312	#ifdef __NR_stat64
		313	struct stat64 statdata;
		314	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		315	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		316	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
		317	#else
		318	struct stat statdata;
		319	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		320	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		321	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
		322	#endif
274	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	323	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
275	case REQ_CLOSE: req->result = close (req->fd); break;	324	case REQ_CLOSE: req->result = close (req->fd); break;
276	case REQ_STAT: req->result = stat64 (req->dataptr, req->statdata); break;
277	case REQ_LSTAT: req->result = lstat64 (req->dataptr, req->statdata); break;	325	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
278	case REQ_FSTAT: req->result = fstat64 (req->fd, req->statdata); break;
279		326
280	case REQ_QUIT:	327	case REQ_QUIT:
281	default:	328	default:
282	write (respipe[1], (void *)&req, sizeof (req));	329	write (respipe[1], (void *)&req, sizeof (req));
283	return 0;	330	return 0;
…		…
330	cur--;	377	cur--;
331	}	378	}
332		379
333	while (started > nthreads)	380	while (started > nthreads)
334	{	381	{
335	fd_set rfd;	382	poll_wait ();
336	FD_ZERO(&rfd);
337	FD_SET(respipe[0], &rfd);
338
339	select (respipe[0] + 1, &rfd, 0, 0, 0);
340	poll_cb (aTHX);	383	poll_cb (aTHX);
341	}	384	}
342		385
343	void	386	void
344	aio_open(pathname,flags,mode,callback)	387	aio_open(pathname,flags,mode,callback)
…		…
420	Newz (0, req, 1, aio_cb);	463	Newz (0, req, 1, aio_cb);
421		464
422	if (!req)	465	if (!req)
423	croak ("out of memory during aio_req allocation");	466	croak ("out of memory during aio_req allocation");
424		467
425	New (0, req->statdata, 1, struct stat64);	468	New (0, req->statdata, 1, Stat_t);
426		469
427	if (!req->statdata)	470	if (!req->statdata)
428	croak ("out of memory during aio_req->statdata allocation");	471	croak ("out of memory during aio_req->statdata allocation");
429		472
430	if (SvPOK (fh_or_path))	473	if (SvPOK (fh_or_path))
…		…
441		484
442	req->callback = SvREFCNT_inc (callback);	485	req->callback = SvREFCNT_inc (callback);
443		486
444	send_req (req);	487	send_req (req);
445		488
		489	void
		490	aio_unlink(pathname,callback)
		491	SV * pathname
		492	SV * callback
		493	PROTOTYPE: $$
		494	CODE:
		495	aio_req req;
		496
		497	Newz (0, req, 1, aio_cb);
		498
		499	if (!req)
		500	croak ("out of memory during aio_req allocation");
		501
		502	req->type = REQ_UNLINK;
		503	req->data = newSVsv (pathname);
		504	req->dataptr = SvPV_nolen (req->data);
		505	req->callback = SvREFCNT_inc (callback);
		506
		507	send_req (req);
		508
446	int	509	int
447	poll_fileno()	510	poll_fileno()
448	PROTOTYPE:	511	PROTOTYPE:
449	CODE:	512	CODE:
450	RETVAL = respipe[0];	513	RETVAL = respipe[0];
…		…
457	CODE:	520	CODE:
458	RETVAL = poll_cb (aTHX);	521	RETVAL = poll_cb (aTHX);
459	OUTPUT:	522	OUTPUT:
460	RETVAL	523	RETVAL
461		524
		525	void
		526	poll_wait()
		527	PROTOTYPE:
		528	CODE:
		529	poll_wait ();
		530
462	int	531	int
463	nreqs()	532	nreqs()
464	PROTOTYPE:	533	PROTOTYPE:
465	CODE:	534	CODE:
466	RETVAL = nreqs;	535	RETVAL = nreqs;

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.18 by root, Thu May 6 15:05:57 2004 UTC vs. Revision 1.24 by root, Sat Jul 2 13:16:33 2005 UTC

Diff Legend

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.18 by root, Thu May 6 15:05:57 2004 UTC vs.
Revision 1.24 by root, Sat Jul 2 13:16:33 2005 UTC