[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 1.25 by root, Thu Jul 7 22:24:09 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	// 128 seems to be enough most everywhere. alpha needs 256.
19	# define __NR_pread64 __NR_pread	19	#define STACKSIZE (256 * sizeof (long))
20	#endif
21	#ifndef __NR_pwrite64
22	# define __NR_pwrite64 __NR_pwrite
23	#endif
24		20
25	#define STACKSIZE 1024 /* yeah */	21	enum {
26		22	REQ_QUIT,
27	enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT};	23	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
		24	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
		25	};
28		26
29	typedef struct {	27	typedef struct {
30	char stack[STACKSIZE];	28	char stack[STACKSIZE];
31	} aio_thread;	29	} aio_thread;
32		30
…		…
44	int errorno;	42	int errorno;
45	SV data, callback;	43	SV data, callback;
46	void *dataptr;	44	void *dataptr;
47	STRLEN dataoffset;	45	STRLEN dataoffset;
48		46
49	struct stat64 *statdata;	47	Stat_t *statdata;
50	} aio_cb;	48	} aio_cb;
51		49
52	typedef aio_cb *aio_req;	50	typedef aio_cb *aio_req;
53		51
54	static int started;	52	static int started;
…		…
65	aio_thread *thr;	63	aio_thread *thr;
66		64
67	New (0, thr, 1, aio_thread);	65	New (0, thr, 1, aio_thread);
68		66
69	if (clone (aio_proc,	67	if (clone (aio_proc,
70	&(thr->stack[STACKSIZE]),	68	&(thr->stack[STACKSIZE - sizeof (long)]),
71	CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND,	69	CLONE_VM\|CLONE_FS\|CLONE_FILES,
72	thr) >= 0)	70	thr) >= 0)
73	started++;	71	started++;
74	else	72	else
75	Safefree (thr);	73	Safefree (thr);
76	}	74	}
…		…
91	{	89	{
92	nreqs++;	90	nreqs++;
93	req->next = 0;	91	req->next = 0;
94		92
95	if (qe)	93	if (qe)
		94	{
96	qe->next = req;	95	qe->next = req;
		96	qe = req;
		97	}
97	else	98	else
98	qe = qs = req;	99	qe = qs = req;
99		100
100	send_reqs ();	101	send_reqs ();
101	}	102	}
…		…
157	req->callback = SvREFCNT_inc (callback);	158	req->callback = SvREFCNT_inc (callback);
158		159
159	send_req (req);	160	send_req (req);
160	}	161	}
161		162
		163	static void
		164	poll_wait ()
		165	{
		166	fd_set rfd;
		167	FD_ZERO(&rfd);
		168	FD_SET(respipe[0], &rfd);
		169
		170	select (respipe[0] + 1, &rfd, 0, 0, 0);
		171	}
		172
162	static int	173	static int
163	poll_cb (pTHX)	174	poll_cb (pTHX)
164	{	175	{
165	dSP;	176	dSP;
166	int count = 0;	177	int count = 0;
167	aio_req req;	178	aio_req req;
168		179
169	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	180	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
170	{	181	{
		182	nreqs--;
		183
171	if (req->type == REQ_QUIT)	184	if (req->type == REQ_QUIT)
172	{	185	{
173	Safefree (req->thread);	186	Safefree (req->thread);
174	started--;	187	started--;
175	}	188	}
…		…
185	if (req->data)	198	if (req->data)
186	SvREFCNT_dec (req->data);	199	SvREFCNT_dec (req->data);
187		200
188	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	201	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
189	{	202	{
190	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	203	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
191	PL_laststatval = req->result;	204	PL_laststatval = req->result;
192	PL_statcache.st_dev = req->statdata->st_dev;	205	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		206
206	Safefree (req->statdata);	207	Safefree (req->statdata);
207	}	208	}
208		209
209	PUSHMARK (SP);	210	PUSHMARK (SP);
…		…
214		215
215	if (req->callback)	216	if (req->callback)
216	SvREFCNT_dec (req->callback);	217	SvREFCNT_dec (req->callback);
217		218
218	errno = errorno;	219	errno = errorno;
219	nreqs--;
220	count++;	220	count++;
221	}	221	}
222		222
223	Safefree (req);	223	Safefree (req);
224	}	224	}
225		225
226	if (qs)	226	if (qs)
227	{
228	printf ("outstanding %p %d\n", qs, nreqs);
229	send_reqs ();	227	send_reqs ();
230	}
231		228
232	return count;	229	return count;
233	}	230	}
234		231
235	static sigset_t fullsigset;	232	static sigset_t fullsigset;
236		233
237	#undef errno	234	#undef errno
238	#include <asm/unistd.h>	235	#include <asm/unistd.h>
		236	#include <sys/prctl.h>
		237
		238	#if __alpha \|\| __ia64 \|\| __hppa \|\| __sparc64__ \|\| __v850__
		239	# define stat kernelstat
		240	# define stat64 kernelstat64
		241	# include <asm/stat.h>
		242	# undef stat
		243	# undef stat64
		244	#else
		245	# define kernelstat stat
		246	# define kernelstat64 stat64
		247	#endif
		248
		249	#define COPY_STATDATA \
		250	req->statdata->st_dev = statdata.st_dev; \
		251	req->statdata->st_ino = statdata.st_ino; \
		252	req->statdata->st_mode = statdata.st_mode; \
		253	req->statdata->st_nlink = statdata.st_nlink; \
		254	req->statdata->st_uid = statdata.st_uid; \
		255	req->statdata->st_gid = statdata.st_gid; \
		256	req->statdata->st_rdev = statdata.st_rdev; \
		257	req->statdata->st_size = statdata.st_size; \
		258	req->statdata->st_atime = statdata.st_atime; \
		259	req->statdata->st_mtime = statdata.st_mtime; \
		260	req->statdata->st_ctime = statdata.st_ctime; \
		261	req->statdata->st_blksize = statdata.st_blksize; \
		262	req->statdata->st_blocks = statdata.st_blocks; \
239		263
240	static int	264	static int
241	aio_proc (void *thr_arg)	265	aio_proc (void *thr_arg)
242	{	266	{
243	aio_thread *thr = thr_arg;	267	aio_thread *thr = thr_arg;
244	aio_req req;	268	aio_req req;
245	int errno;	269	int errno;
246		270
247	/* this is very much x86 and kernel-specific :(:(:( */	271	/* this is very much kernel-specific :(:(:( */
248	/* we rely on gcc's ability to create closures. */	272	/* we rely on gcc's ability to create closures. */
249	_syscall3(int,read,int,fd,char *,buf,size_t,count)	273	_syscall3(int,read,int,fd,char *,buf,size_t,count)
250	_syscall3(int,write,int,fd,char *,buf,size_t,count)	274	_syscall3(int,write,int,fd,char *,buf,size_t,count)
251		275
252	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	276	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
253	_syscall1(int,close,int,fd)	277	_syscall1(int,close,int,fd)
254		278
		279	#if __NR_pread64
255	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	280	_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)	281	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
		282	#elif __NR_pread
		283	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
		284	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
		285	#else
		286	# error "neither pread nor pread64 defined"
		287	#endif
257		288
		289
		290	#if __NR_stat64
258	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	291	_syscall2(int,stat64, const char , filename, struct kernelstat64 , buf)
259	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	292	_syscall2(int,lstat64, const char , filename, struct kernelstat64 , buf)
260	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	293	_syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf)
		294	#elif __NR_stat
		295	_syscall2(int,stat, const char , filename, struct kernelstat , buf)
		296	_syscall2(int,lstat, const char , filename, struct kernelstat , buf)
		297	_syscall2(int,fstat, int, fd, struct kernelstat *, buf)
		298	#else
		299	# error "neither stat64 nor stat defined"
		300	#endif
		301
		302	_syscall1(int,unlink, char *, filename);
261		303
262	sigprocmask (SIG_SETMASK, &fullsigset, 0);	304	sigprocmask (SIG_SETMASK, &fullsigset, 0);
		305	prctl (PR_SET_PDEATHSIG, SIGKILL);
263		306
264	/* then loop */	307	/* then loop */
265	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	308	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
266	{	309	{
267	req->thread = thr;	310	req->thread = thr;
268	errno = 0; /* strictly unnecessary */	311	errno = 0; /* strictly unnecessary */
269		312
270	switch (req->type)	313	switch (req->type)
271	{	314	{
		315	#if __NR_pread64
272	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	316	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;	317	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
		318	#else
		319	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;
		321	#endif
		322	#if __NR_stat64
		323	struct kernelstat64 statdata;
		324	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		325	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		326	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
		327	#else
		328	struct kernelstat statdata;
		329	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		330	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		331	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
		332	#endif
274	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	333	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
275	case REQ_CLOSE: req->result = close (req->fd); break;	334	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;	335	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
278	case REQ_FSTAT: req->result = fstat64 (req->fd, req->statdata); break;
279		336
280	case REQ_QUIT:	337	case REQ_QUIT:
281	default:	338	default:
282	write (respipe[1], (void *)&req, sizeof (req));	339	write (respipe[1], (void *)&req, sizeof (req));
283	return 0;	340	return 0;
…		…
330	cur--;	387	cur--;
331	}	388	}
332		389
333	while (started > nthreads)	390	while (started > nthreads)
334	{	391	{
335	fd_set rfd;	392	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);	393	poll_cb (aTHX);
341	}	394	}
342		395
343	void	396	void
344	aio_open(pathname,flags,mode,callback)	397	aio_open(pathname,flags,mode,callback)
…		…
420	Newz (0, req, 1, aio_cb);	473	Newz (0, req, 1, aio_cb);
421		474
422	if (!req)	475	if (!req)
423	croak ("out of memory during aio_req allocation");	476	croak ("out of memory during aio_req allocation");
424		477
425	New (0, req->statdata, 1, struct stat64);	478	New (0, req->statdata, 1, Stat_t);
426		479
427	if (!req->statdata)	480	if (!req->statdata)
428	croak ("out of memory during aio_req->statdata allocation");	481	croak ("out of memory during aio_req->statdata allocation");
429		482
430	if (SvPOK (fh_or_path))	483	if (SvPOK (fh_or_path))
…		…
441		494
442	req->callback = SvREFCNT_inc (callback);	495	req->callback = SvREFCNT_inc (callback);
443		496
444	send_req (req);	497	send_req (req);
445		498
		499	void
		500	aio_unlink(pathname,callback)
		501	SV * pathname
		502	SV * callback
		503	PROTOTYPE: $$
		504	CODE:
		505	aio_req req;
		506
		507	Newz (0, req, 1, aio_cb);
		508
		509	if (!req)
		510	croak ("out of memory during aio_req allocation");
		511
		512	req->type = REQ_UNLINK;
		513	req->data = newSVsv (pathname);
		514	req->dataptr = SvPV_nolen (req->data);
		515	req->callback = SvREFCNT_inc (callback);
		516
		517	send_req (req);
		518
446	int	519	int
447	poll_fileno()	520	poll_fileno()
448	PROTOTYPE:	521	PROTOTYPE:
449	CODE:	522	CODE:
450	RETVAL = respipe[0];	523	RETVAL = respipe[0];
…		…
457	CODE:	530	CODE:
458	RETVAL = poll_cb (aTHX);	531	RETVAL = poll_cb (aTHX);
459	OUTPUT:	532	OUTPUT:
460	RETVAL	533	RETVAL
461		534
		535	void
		536	poll_wait()
		537	PROTOTYPE:
		538	CODE:
		539	poll_wait ();
		540
462	int	541	int
463	nreqs()	542	nreqs()
464	PROTOTYPE:	543	PROTOTYPE:
465	CODE:	544	CODE:
466	RETVAL = nreqs;	545	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 1.25 by root, Thu Jul 7 22:24:09 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 1.25 by root, Thu Jul 7 22:24:09 2005 UTC