[ViewVC] Diff of: cvs/libeio/eio.c

Comparing libeio/eio.c (file contents):
Revision 1.6 by root, Sun May 11 19:11:05 2008 UTC vs.
Revision 1.12 by root, Tue May 13 18:54:52 2008 UTC

…		…
8	#include <errno.h>	8	#include <errno.h>
9	#include <sys/types.h>	9	#include <sys/types.h>
10	#include <sys/stat.h>	10	#include <sys/stat.h>
11	#include <limits.h>	11	#include <limits.h>
12	#include <fcntl.h>	12	#include <fcntl.h>
13	#include <sched.h>	13	#include <assert.h>
14		14
15	#ifndef EIO_FINISH	15	#ifndef EIO_FINISH
16	# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0	16	# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
17	#endif	17	#endif
18		18
…		…
41	# ifndef EIO_STRUCT_DIRENT	41	# ifndef EIO_STRUCT_DIRENT
42	# define EIO_STRUCT_DIRENT struct dirent	42	# define EIO_STRUCT_DIRENT struct dirent
43	# endif	43	# endif
44		44
45	#endif	45	#endif
46
47	# ifndef EIO_STRUCT_STAT
48	# define EIO_STRUCT_STAT struct stat
49	# endif
50		46
51	#if HAVE_SENDFILE	47	#if HAVE_SENDFILE
52	# if __linux	48	# if __linux
53	# include <sys/sendfile.h>	49	# include <sys/sendfile.h>
54	# elif __freebsd	50	# elif __freebsd
…		…
77	#define dBUF \	73	#define dBUF \
78	char *eio_buf; \	74	char *eio_buf; \
79	X_LOCK (wrklock); \	75	X_LOCK (wrklock); \
80	self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \	76	self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \
81	X_UNLOCK (wrklock); \	77	X_UNLOCK (wrklock); \
		78	errno = ENOMEM; \
82	if (!eio_buf) \	79	if (!eio_buf) \
83	return -1;	80	return -1;
84		81
85	#define EIO_TICKS ((1000000 + 1023) >> 10)	82	#define EIO_TICKS ((1000000 + 1023) >> 10)
86		83
…		…
95	{	92	{
96	return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS	93	return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
97	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	94	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
98	}	95	}
99		96
100	static unsigned int started, idle, wanted;	97	static unsigned int started, idle, wanted = 4;
101		98
102	/* worker threads management */	99	/* worker threads management */
103	static mutex_t wrklock = X_MUTEX_INIT;	100	static mutex_t wrklock = X_MUTEX_INIT;
104		101
105	typedef struct worker {	102	typedef struct worker
		103	{
106	/* locked by wrklock */	104	/* locked by wrklock */
107	struct worker prev, next;	105	struct worker prev, next;
108		106
109	thread_t tid;	107	thread_t tid;
110		108
…		…
325		323
326	static void start_thread (void)	324	static void start_thread (void)
327	{	325	{
328	worker *wrk = calloc (1, sizeof (worker));	326	worker *wrk = calloc (1, sizeof (worker));
329		327
330	if (!wrk)	328	/TODO/
331	croak ("unable to allocate worker thread data");	329	assert (("unable to allocate worker thread data", wrk));
332		330
333	X_LOCK (wrklock);	331	X_LOCK (wrklock);
334		332
335	if (thread_create (&wrk->tid, eio_proc, (void *)wrk))	333	if (thread_create (&wrk->tid, eio_proc, (void *)wrk))
336	{	334	{
…		…
358	start_thread ();	356	start_thread ();
359	}	357	}
360		358
361	void eio_submit (eio_req *req)	359	void eio_submit (eio_req *req)
362	{	360	{
		361	req->pri += EIO_PRI_BIAS;
		362
		363	if (req->pri < EIO_PRI_MIN + EIO_PRI_BIAS) req->pri = EIO_PRI_MIN + EIO_PRI_BIAS;
		364	if (req->pri > EIO_PRI_MAX + EIO_PRI_BIAS) req->pri = EIO_PRI_MAX + EIO_PRI_BIAS;
		365
363	++nreqs;	366	++nreqs;
364		367
365	X_LOCK (reqlock);	368	X_LOCK (reqlock);
366	++nready;	369	++nready;
367	reqq_push (&req_queue, req);	370	reqq_push (&req_queue, req);
…		…
485		488
486	/*****************************************************************************/	489	/*****************************************************************************/
487	/* work around various missing functions */	490	/* work around various missing functions */
488		491
489	#if !HAVE_PREADWRITE	492	#if !HAVE_PREADWRITE
490	# define pread aio_pread	493	# define pread eio__pread
491	# define pwrite aio_pwrite	494	# define pwrite eio__pwrite
492		495
493	/*	496	/*
494	* make our pread/pwrite safe against themselves, but not against	497	* make our pread/pwrite safe against themselves, but not against
495	* normal read/write by using a mutex. slows down execution a lot,	498	* normal read/write by using a mutex. slows down execution a lot,
496	* but that's your problem, not mine.	499	* but that's your problem, not mine.
497	*/	500	*/
498	static mutex_t preadwritelock = X_MUTEX_INIT;	501	static mutex_t preadwritelock = X_MUTEX_INIT;
499		502
500	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	503	static ssize_t
		504	eio__pread (int fd, void *buf, size_t count, off_t offset)
501	{	505	{
502	ssize_t res;	506	ssize_t res;
503	off_t ooffset;	507	off_t ooffset;
504		508
505	X_LOCK (preadwritelock);	509	X_LOCK (preadwritelock);
…		…
510	X_UNLOCK (preadwritelock);	514	X_UNLOCK (preadwritelock);
511		515
512	return res;	516	return res;
513	}	517	}
514		518
515	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	519	static ssize_t
		520	eio__pwrite (int fd, void *buf, size_t count, off_t offset)
516	{	521	{
517	ssize_t res;	522	ssize_t res;
518	off_t ooffset;	523	off_t ooffset;
519		524
520	X_LOCK (preadwritelock);	525	X_LOCK (preadwritelock);
…		…
528	}	533	}
529	#endif	534	#endif
530		535
531	#ifndef HAVE_FUTIMES	536	#ifndef HAVE_FUTIMES
532		537
533	# define utimes(path,times) aio_utimes (path, times)	538	# define utimes(path,times) eio__utimes (path, times)
534	# define futimes(fd,times) aio_futimes (fd, times)	539	# define futimes(fd,times) eio__futimes (fd, times)
535		540
		541	static int
536	static int aio_utimes (const char *filename, const struct timeval times[2])	542	eio__utimes (const char *filename, const struct timeval times[2])
537	{	543	{
538	if (times)	544	if (times)
539	{	545	{
540	struct utimbuf buf;	546	struct utimbuf buf;
541		547
…		…
546	}	552	}
547	else	553	else
548	return utime (filename, 0);	554	return utime (filename, 0);
549	}	555	}
550		556
551	static int aio_futimes (int fd, const struct timeval tv[2])	557	static int eio__futimes (int fd, const struct timeval tv[2])
552	{	558	{
553	errno = ENOSYS;	559	errno = ENOSYS;
554	return -1;	560	return -1;
555	}	561	}
556		562
…		…
559	#if !HAVE_FDATASYNC	565	#if !HAVE_FDATASYNC
560	# define fdatasync fsync	566	# define fdatasync fsync
561	#endif	567	#endif
562		568
563	#if !HAVE_READAHEAD	569	#if !HAVE_READAHEAD
564	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	570	# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
565		571
		572	static ssize_t
566	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	573	eio__readahead (int fd, off_t offset, size_t count, worker *self)
567	{	574	{
568	size_t todo = count;	575	size_t todo = count;
569	dBUF;	576	dBUF;
570		577
571	while (todo > 0)	578	while (todo > 0)
…		…
582	}	589	}
583		590
584	#endif	591	#endif
585		592
586	#if !HAVE_READDIR_R	593	#if !HAVE_READDIR_R
587	# define readdir_r aio_readdir_r	594	# define readdir_r eio__readdir_r
588		595
589	static mutex_t readdirlock = X_MUTEX_INIT;	596	static mutex_t readdirlock = X_MUTEX_INIT;
590		597
		598	static int
591	static int readdir_r (DIR dirp, EIO_STRUCT_DIRENT ent, EIO_STRUCT_DIRENT **res)	599	eio__readdir_r (DIR dirp, EIO_STRUCT_DIRENT ent, EIO_STRUCT_DIRENT **res)
592	{	600	{
593	EIO_STRUCT_DIRENT *e;	601	EIO_STRUCT_DIRENT *e;
594	int errorno;	602	int errorno;
595		603
596	X_LOCK (readdirlock);	604	X_LOCK (readdirlock);
…		…
612	return e ? 0 : -1;	620	return e ? 0 : -1;
613	}	621	}
614	#endif	622	#endif
615		623
616	/* sendfile always needs emulation */	624	/* sendfile always needs emulation */
		625	static ssize_t
617	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)	626	eio__sendfile (int ofd, int ifd, off_t offset, size_t count, worker *self)
618	{	627	{
619	ssize_t res;	628	ssize_t res;
620		629
621	if (!count)	630	if (!count)
622	return 0;	631	return 0;
…		…
705		714
706	return res;	715	return res;
707	}	716	}
708		717
709	/* read a full directory */	718	/* read a full directory */
		719	static void
710	static void scandir_ (eio_req req, worker self)	720	eio__scandir (eio_req req, worker self)
711	{	721	{
712	DIR *dirp;	722	DIR *dirp;
713	union	723	union
714	{	724	{
715	EIO_STRUCT_DIRENT d;	725	EIO_STRUCT_DIRENT d;
…		…
768	}	778	}
769		779
770	/*****************************************************************************/	780	/*****************************************************************************/
771		781
772	#define ALLOC(len) \	782	#define ALLOC(len) \
773	X_LOCK (wrklock); \
774	req->flags \|= EIO_FLAG_PTR2_FREE; \
775	X_UNLOCK (wrklock); \
776	req->ptr2 = malloc (len); \
777	if (!req->ptr2) \	783	if (!req->ptr2) \
778	{ \	784	{ \
		785	X_LOCK (wrklock); \
		786	req->flags \|= EIO_FLAG_PTR2_FREE; \
		787	X_UNLOCK (wrklock); \
		788	req->ptr2 = malloc (len); \
		789	if (!req->ptr2) \
		790	{ \
779	errno = ENOMEM; \	791	errno = ENOMEM; \
780	req->result = -1; \	792	req->result = -1; \
781	break; \	793	break; \
		794	} \
782	}	795	}
783		796
784	X_THREAD_PROC (eio_proc)	797	X_THREAD_PROC (eio_proc)
785	{	798	{
786	eio_req *req;	799	eio_req *req;
…		…
832	errno = 0; /* strictly unnecessary */	845	errno = 0; /* strictly unnecessary */
833		846
834	if (!EIO_CANCELLED (req))	847	if (!EIO_CANCELLED (req))
835	switch (req->type)	848	switch (req->type)
836	{	849	{
		850	case EIO_READ: ALLOC (req->size);
837	case EIO_READ: req->result = req->offs >= 0	851	req->result = req->offs >= 0
838	? pread (req->int1, req->ptr2, req->size, req->offs)	852	? pread (req->int1, req->ptr2, req->size, req->offs)
839	: read (req->int1, req->ptr2, req->size); break;	853	: read (req->int1, req->ptr2, req->size); break;
840	case EIO_WRITE: req->result = req->offs >= 0	854	case EIO_WRITE: req->result = req->offs >= 0
841	? pwrite (req->int1, req->ptr2, req->size, req->offs)	855	? pwrite (req->int1, req->ptr2, req->size, req->offs)
842	: write (req->int1, req->ptr2, req->size); break;	856	: write (req->int1, req->ptr2, req->size); break;
843		857
844	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	858	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
845	case EIO_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;	859	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;
846		860
847	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	861	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
848	req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	862	req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
849	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	863	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
850	req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	864	req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
…		…
866	case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;	880	case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
867	case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;	881	case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
868	case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;	882	case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
869	case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;	883	case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
870	case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;	884	case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
		885
871	case EIO_READLINK: ALLOC (NAME_MAX);	886	case EIO_READLINK: ALLOC (NAME_MAX);
872	req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;	887	req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;
873		888
874	case EIO_SYNC: req->result = 0; sync (); break;	889	case EIO_SYNC: req->result = 0; sync (); break;
875	case EIO_FSYNC: req->result = fsync (req->int1); break;	890	case EIO_FSYNC: req->result = fsync (req->int1); break;
876	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;	891	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
877		892
878	case EIO_READDIR: scandir_ (req, self); break;	893	case EIO_READDIR: eio__scandir (req, self); break;
879		894
880	case EIO_BUSY:	895	case EIO_BUSY:
881	#ifdef _WIN32	896	#ifdef _WIN32
882	Sleep (req->nv1 * 1000.);	897	Sleep (req->nv1 * 1000.);
883	#else	898	#else
…		…
916	: utimes (req->ptr1, times);	931	: utimes (req->ptr1, times);
917	}	932	}
918		933
919	case EIO_GROUP:	934	case EIO_GROUP:
920	case EIO_NOP:	935	case EIO_NOP:
		936	req->result = 0;
921	break;	937	break;
922		938
923	case EIO_QUIT:	939	case EIO_QUIT:
924	goto quit;	940	goto quit;
925		941
…		…
1038	\	1054	\
1039	req = (eio_req )calloc (1, sizeof req); \	1055	req = (eio_req )calloc (1, sizeof req); \
1040	if (!req) \	1056	if (!req) \
1041	return 0; \	1057	return 0; \
1042	\	1058	\
1043	req->type = EIO_ ## rtype; \	1059	req->type = rtype; \
1044	req->pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	1060	req->pri = pri; \
1045	req->finish = cb; \	1061	req->finish = cb; \
		1062	req->data = data; \
1046	req->destroy = eio_api_destroy;	1063	req->destroy = eio_api_destroy;
1047		1064
1048	#define SEND eio_submit (req); return req	1065	#define SEND eio_submit (req); return req
1049		1066
1050	#define PATH (void)0	1067	#define PATH \
		1068	req->flags \|= EIO_FLAG_PTR1_FREE; \
		1069	req->ptr1 = strdup (path); \
		1070	if (!req->ptr1) \
		1071	{ \
		1072	eio_api_destroy (req); \
		1073	return 0; \
		1074	}
1051		1075
		1076	#ifndef EIO_NO_WRAPPERS
		1077
		1078	eio_req eio_nop (int pri, eio_cb cb, void data)
		1079	{
		1080	REQ (EIO_NOP); SEND;
		1081	}
		1082
		1083	eio_req eio_busy (double delay, int pri, eio_cb cb, void data)
		1084	{
		1085	REQ (EIO_BUSY); req->nv1 = delay; SEND;
		1086	}
		1087
1052	eio_req *eio_fsync (int fd, eio_cb cb)	1088	eio_req eio_sync (int pri, eio_cb cb, void data)
1053	{	1089	{
		1090	REQ (EIO_SYNC); SEND;
		1091	}
		1092
		1093	eio_req eio_fsync (int fd, int pri, eio_cb cb, void data)
		1094	{
1054	REQ (FSYNC); req->int1 = fd; SEND;	1095	REQ (EIO_FSYNC); req->int1 = fd; SEND;
1055	}	1096	}
1056		1097
1057	eio_req *eio_fdatasync (int fd, eio_cb cb)	1098	eio_req eio_fdatasync (int fd, int pri, eio_cb cb, void data)
1058	{	1099	{
1059	REQ (FDATASYNC); req->int1 = fd; SEND;	1100	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
1060	}	1101	}
1061		1102
		1103	eio_req eio_close (int fd, int pri, eio_cb cb, void data)
		1104	{
		1105	REQ (EIO_CLOSE); req->int1 = fd; SEND;
		1106	}
		1107
1062	eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb)	1108	eio_req eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void data)
1063	{	1109	{
1064	REQ (READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;	1110	REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
1065	}	1111	}
1066		1112
1067	eio_req eio_read (int fd, off_t offset, size_t length, void data, eio_cb cb)	1113	eio_req eio_read (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1068	{	1114	{
1069	REQ (READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = data; SEND;	1115	REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1070	}	1116	}
1071		1117
1072	eio_req eio_write (int fd, off_t offset, size_t length, void data, eio_cb cb)	1118	eio_req eio_write (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1073	{	1119	{
1074	REQ (WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = data; SEND;	1120	REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1075	}	1121	}
1076		1122
1077	eio_req *eio_fstat (int fd, eio_cb cb)	1123	eio_req eio_fstat (int fd, int pri, eio_cb cb, void data)
1078	{	1124	{
1079	REQ (FSTAT); req->int1 = fd; SEND;	1125	REQ (EIO_FSTAT); req->int1 = fd; SEND;
1080	}	1126	}
1081		1127
1082	eio_req *eio_futime (int fd, double atime, double mtime, eio_cb cb)	1128	eio_req eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void data)
1083	{	1129	{
1084	REQ (FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;	1130	REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;
1085	}	1131	}
1086		1132
1087	eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb)	1133	eio_req eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void data)
1088	{	1134	{
1089	REQ (FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;	1135	REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;
1090	}	1136	}
1091		1137
1092	eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb)	1138	eio_req eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void data)
1093	{	1139	{
1094	REQ (FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;	1140	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
1095	}	1141	}
1096		1142
1097	eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb)	1143	eio_req eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void data)
1098	{	1144	{
1099	REQ (FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	1145	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1100	}	1146	}
1101		1147
1102	eio_req *eio_dup2 (int fd, int fd2, eio_cb cb)	1148	eio_req eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void data)
1103	{	1149	{
1104	REQ (DUP2); req->int1 = fd; req->int2 = fd2; SEND;	1150	REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND;
1105	}	1151	}
1106		1152
1107	eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb)	1153	eio_req eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void data)
1108	{	1154	{
1109	REQ (SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;	1155	REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;
1110	}	1156	}
1111		1157
1112	eio_req eio_open (const char path, int flags, mode_t mode, eio_cb cb)	1158	eio_req eio_open (const char path, int flags, mode_t mode, int pri, eio_cb cb, void *data)
1113	{	1159	{
1114	REQ (OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND;	1160	REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND;
1115	}	1161	}
1116		1162
1117	eio_req eio_readlink (const char path, eio_cb cb)
1118	{
1119	REQ (READLINK); PATH; SEND;
1120	}
1121
1122	eio_req eio_stat (const char path, eio_cb cb)
1123	{
1124	REQ (STAT); PATH; SEND;
1125	}
1126
1127	eio_req eio_lstat (const char path, eio_cb cb)
1128	{
1129	REQ (LSTAT); PATH; SEND;
1130	}
1131
1132	eio_req eio_utime (const char path, double atime, double mtime, eio_cb cb)	1163	eio_req eio_utime (const char path, double atime, double mtime, int pri, eio_cb cb, void *data)
1133	{	1164	{
1134	REQ (UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;	1165	REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;
1135	}	1166	}
1136		1167
1137	eio_req eio_truncate (const char path, off_t offset, eio_cb cb)	1168	eio_req eio_truncate (const char path, off_t offset, int pri, eio_cb cb, void *data)
1138	{	1169	{
1139	REQ (TRUNCATE); PATH; req->offs = offset; SEND;	1170	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
1140	}	1171	}
1141		1172
1142	eio_req eio_chown (const char path, uid_t uid, gid_t gid, eio_cb cb)	1173	eio_req eio_chown (const char path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1143	{	1174	{
1144	REQ (CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	1175	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1145	}	1176	}
1146		1177
1147	eio_req eio_chmod (const char path, mode_t mode, eio_cb cb)	1178	eio_req eio_chmod (const char path, mode_t mode, int pri, eio_cb cb, void *data)
1148	{	1179	{
1149	REQ (CHMOD); PATH; req->int2 = (long)mode; SEND;	1180	REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND;
1150	}	1181	}
1151		1182
1152	eio_req eio_mkdir (const char path, mode_t mode, eio_cb cb)	1183	eio_req eio_mkdir (const char path, mode_t mode, int pri, eio_cb cb, void *data)
1153	{	1184	{
1154	REQ (MKDIR); PATH; req->int2 = (long)mode; SEND;	1185	REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND;
1155	}	1186	}
1156		1187
1157	eio_req eio_unlink (const char path, eio_cb cb)	1188	static eio_req *
		1189	eio__1path (int type, const char path, int pri, eio_cb cb, void data)
1158	{	1190	{
1159	REQ (UNLINK); PATH; SEND;
1160	}
1161
1162	eio_req eio_rmdir (const char path, eio_cb cb)
1163	{
1164	REQ (RMDIR); PATH; SEND;	1191	REQ (type); PATH; SEND;
1165	}	1192	}
1166		1193
		1194	eio_req eio_readlink (const char path, int pri, eio_cb cb, void *data)
		1195	{
		1196	return eio__1path (EIO_READLINK, path, pri, cb, data);
		1197	}
		1198
		1199	eio_req eio_stat (const char path, int pri, eio_cb cb, void *data)
		1200	{
		1201	return eio__1path (EIO_STAT, path, pri, cb, data);
		1202	}
		1203
		1204	eio_req eio_lstat (const char path, int pri, eio_cb cb, void *data)
		1205	{
		1206	return eio__1path (EIO_LSTAT, path, pri, cb, data);
		1207	}
		1208
		1209	eio_req eio_unlink (const char path, int pri, eio_cb cb, void *data)
		1210	{
		1211	return eio__1path (EIO_UNLINK, path, pri, cb, data);
		1212	}
		1213
		1214	eio_req eio_rmdir (const char path, int pri, eio_cb cb, void *data)
		1215	{
		1216	return eio__1path (EIO_RMDIR, path, pri, cb, data);
		1217	}
		1218
1167	eio_req eio_readdir (const char path, eio_cb cb)	1219	eio_req eio_readdir (const char path, int pri, eio_cb cb, void *data)
1168	{	1220	{
1169	REQ (READDIR); PATH; SEND;	1221	return eio__1path (EIO_READDIR, path, pri, cb, data);
1170	}	1222	}
1171		1223
1172	eio_req eio_mknod (const char path, mode_t mode, dev_t dev, eio_cb cb)	1224	eio_req eio_mknod (const char path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data)
1173	{	1225	{
1174	REQ (MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND;	1226	REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND;
1175	}	1227	}
1176		1228
1177	eio_req *eio_busy (double delay, eio_cb cb)	1229	static eio_req *
		1230	eio__2path (int type, const char path, const char new_path, int pri, eio_cb cb, void *data)
1178	{	1231	{
1179	REQ (BUSY); req->nv1 = delay; SEND;	1232	REQ (type); PATH;
1180	}
1181		1233
		1234	req->flags \|= EIO_FLAG_PTR2_FREE;
		1235	req->ptr2 = strdup (new_path);
		1236	if (!req->ptr2)
		1237	{
		1238	eio_api_destroy (req);
		1239	return 0;
		1240	}
		1241
		1242	SEND;
		1243	}
		1244
		1245	eio_req eio_link (const char path, const char new_path, int pri, eio_cb cb, void data)
		1246	{
		1247	return eio__2path (EIO_LINK, path, new_path, pri, cb, data);
		1248	}
		1249
		1250	eio_req eio_symlink (const char path, const char new_path, int pri, eio_cb cb, void data)
		1251	{
		1252	return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data);
		1253	}
		1254
		1255	eio_req eio_rename (const char path, const char new_path, int pri, eio_cb cb, void data)
		1256	{
		1257	return eio__2path (EIO_RENAME, path, new_path, pri, cb, data);
		1258	}
		1259
		1260	#endif
		1261
1182	eio_req *eio_nop (eio_cb cb)	1262	eio_req eio_grp (eio_cb cb, void data)
1183	{	1263	{
		1264	const int pri = EIO_PRI_MAX;
		1265
1184	REQ (NOP); SEND;	1266	REQ (EIO_GROUP); SEND;
1185	}	1267	}
1186		1268
1187	#undef REQ	1269	#undef REQ
1188	#undef PATH	1270	#undef PATH
1189	#undef SEND	1271	#undef SEND
1190		1272
1191	#if 0	1273	/*****************************************************************************/
1192		1274	/* grp functions */
1193	void
1194	aio_open (SV8 pathname, int flags, int mode, SV callback=&PL_sv_undef)
1195	PROTOTYPE: $$$;$
1196	PPCODE:
1197	{
1198	dREQ;
1199
1200	req->type = EIO_OPEN;
1201	req->sv1 = newSVsv (pathname);
1202	req->ptr1 = SvPVbyte_nolen (req->sv1);
1203	req->int1 = flags;
1204	req->int2 = mode;
1205
1206	EIO_SEND;
1207	}
1208
1209	void
1210	aio_fsync (SV fh, SV callback=&PL_sv_undef)
1211	PROTOTYPE: $;$
1212	ALIAS:
1213	aio_fsync = EIO_FSYNC
1214	aio_fdatasync = EIO_FDATASYNC
1215	PPCODE:
1216	{
1217	dREQ;
1218
1219	req->type = ix;
1220	req->sv1 = newSVsv (fh);
1221	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1222
1223	EIO_SEND (req);
1224	}
1225
1226	void
1227	aio_close (SV fh, SV callback=&PL_sv_undef)
1228	PROTOTYPE: $;$
1229	PPCODE:
1230	{
1231	dREQ;
1232
1233	req->type = EIO_CLOSE;
1234	req->sv1 = newSVsv (fh);
1235	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1236
1237	EIO_SEND (req);
1238	}
1239
1240	void
1241	aio_read (SV fh, SV offset, SV length, SV8 data, IV dataoffset, SV *callback=&PL_sv_undef)
1242	ALIAS:
1243	aio_read = EIO_READ
1244	aio_write = EIO_WRITE
1245	PROTOTYPE: $$$$$;$
1246	PPCODE:
1247	{
1248	STRLEN svlen;
1249	char *svptr = SvPVbyte (data, svlen);
1250	UV len = SvUV (length);
1251
1252	SvUPGRADE (data, SVt_PV);
1253	SvPOK_on (data);
1254
1255	if (dataoffset < 0)
1256	dataoffset += svlen;
1257
1258	if (dataoffset < 0 \|\| dataoffset > svlen)
1259	croak ("dataoffset outside of data scalar");
1260
1261	if (ix == EIO_WRITE)
1262	{
1263	/* write: check length and adjust. */
1264	if (!SvOK (length) \|\| len + dataoffset > svlen)
1265	len = svlen - dataoffset;
1266	}
1267	else
1268	{
1269	/* read: grow scalar as necessary */
1270	svptr = SvGROW (data, len + dataoffset + 1);
1271	}
1272
1273	if (len < 0)
1274	croak ("length must not be negative");
1275
1276	{
1277	dREQ;
1278
1279	req->type = ix;
1280	req->sv1 = newSVsv (fh);
1281	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1282	: IoOFP (sv_2io (fh)));
1283	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1284	req->size = len;
1285	req->sv2 = SvREFCNT_inc (data);
1286	req->ptr2 = (char *)svptr + dataoffset;
1287	req->stroffset = dataoffset;
1288
1289	if (!SvREADONLY (data))
1290	{
1291	SvREADONLY_on (data);
1292	req->flags \|= FLAG_SV2_RO_OFF;
1293	}
1294
1295	EIO_SEND;
1296	}
1297	}
1298
1299	void
1300	aio_readlink (SV8 path, SV callback=&PL_sv_undef)
1301	PROTOTYPE: $$;$
1302	PPCODE:
1303	{
1304	SV *data;
1305	dREQ;
1306
1307	data = newSV (NAME_MAX);
1308	SvPOK_on (data);
1309
1310	req->type = EIO_READLINK;
1311	req->sv1 = newSVsv (path);
1312	req->ptr1 = SvPVbyte_nolen (req->sv1);
1313	req->sv2 = data;
1314	req->ptr2 = SvPVbyte_nolen (data);
1315
1316	EIO_SEND;
1317	}
1318
1319	void
1320	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)
1321	PROTOTYPE: $$$$;$
1322	PPCODE:
1323	{
1324	dREQ;
1325
1326	req->type = EIO_SENDFILE;
1327	req->sv1 = newSVsv (out_fh);
1328	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1329	req->sv2 = newSVsv (in_fh);
1330	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1331	req->offs = SvVAL64 (in_offset);
1332	req->size = length;
1333
1334	EIO_SEND;
1335	}
1336
1337	void
1338	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)
1339	PROTOTYPE: $$$;$
1340	PPCODE:
1341	{
1342	dREQ;
1343
1344	req->type = EIO_READAHEAD;
1345	req->sv1 = newSVsv (fh);
1346	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1347	req->offs = SvVAL64 (offset);
1348	req->size = length;
1349
1350	EIO_SEND;
1351	}
1352
1353	void
1354	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
1355	ALIAS:
1356	aio_stat = EIO_STAT
1357	aio_lstat = EIO_LSTAT
1358	PPCODE:
1359	{
1360	dREQ;
1361
1362	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
1363	if (!req->ptr2)
1364	{
1365	req_destroy (req);
1366	croak ("out of memory during aio_stat statdata allocation");
1367	}
1368
1369	req->flags \|= FLAG_PTR2_FREE;
1370	req->sv1 = newSVsv (fh_or_path);
1371
1372	if (SvPOK (fh_or_path))
1373	{
1374	req->type = ix;
1375	req->ptr1 = SvPVbyte_nolen (req->sv1);
1376	}
1377	else
1378	{
1379	req->type = EIO_FSTAT;
1380	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1381	}
1382
1383	EIO_SEND;
1384	}
1385
1386	void
1387	aio_utime (SV8 fh_or_path, SV atime, SV mtime, SV callback=&PL_sv_undef)
1388	PPCODE:
1389	{
1390	dREQ;
1391
1392	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1393	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1394	req->sv1 = newSVsv (fh_or_path);
1395
1396	if (SvPOK (fh_or_path))
1397	{
1398	req->type = EIO_UTIME;
1399	req->ptr1 = SvPVbyte_nolen (req->sv1);
1400	}
1401	else
1402	{
1403	req->type = EIO_FUTIME;
1404	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1405	}
1406
1407	EIO_SEND;
1408	}
1409
1410	void
1411	aio_truncate (SV8 fh_or_path, SV offset, SV *callback=&PL_sv_undef)
1412	PPCODE:
1413	{
1414	dREQ;
1415
1416	req->sv1 = newSVsv (fh_or_path);
1417	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1418
1419	if (SvPOK (fh_or_path))
1420	{
1421	req->type = EIO_TRUNCATE;
1422	req->ptr1 = SvPVbyte_nolen (req->sv1);
1423	}
1424	else
1425	{
1426	req->type = EIO_FTRUNCATE;
1427	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1428	}
1429
1430	EIO_SEND;
1431	}
1432
1433	void
1434	aio_chmod (SV8 fh_or_path, int mode, SV callback=&PL_sv_undef)
1435	ALIAS:
1436	aio_chmod = EIO_CHMOD
1437	aio_fchmod = EIO_FCHMOD
1438	aio_mkdir = EIO_MKDIR
1439	PPCODE:
1440	{
1441	dREQ;
1442
1443	req->type = type;
1444	req->int2 = mode;
1445	req->sv1 = newSVsv (fh_or_path);
1446
1447	if (ix == EIO_FCHMOD)
1448	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1449	else
1450	req->ptr1 = SvPVbyte_nolen (req->sv1);
1451
1452	EIO_SEND;
1453	}
1454
1455	void
1456	aio_chown (SV8 fh_or_path, SV uid, SV gid, SV callback=&PL_sv_undef)
1457	PPCODE:
1458	{
1459	dREQ;
1460
1461	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1462	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1463	req->sv1 = newSVsv (fh_or_path);
1464
1465	if (SvPOK (fh_or_path))
1466	{
1467	req->type = EIO_CHOWN;
1468	req->ptr1 = SvPVbyte_nolen (req->sv1);
1469	}
1470	else
1471	{
1472	req->type = EIO_FCHOWN;
1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1474	}
1475
1476	EIO_SEND;
1477	}
1478
1479	void
1480	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
1481	ALIAS:
1482	aio_unlink = EIO_UNLINK
1483	aio_rmdir = EIO_RMDIR
1484	aio_readdir = EIO_READDIR
1485	PPCODE:
1486	{
1487	dREQ;
1488
1489	req->type = ix;
1490	req->sv1 = newSVsv (pathname);
1491	req->ptr1 = SvPVbyte_nolen (req->sv1);
1492
1493	EIO_SEND;
1494	}
1495
1496	void
1497	aio_link (SV8 oldpath, SV8 newpath, SV *callback=&PL_sv_undef)
1498	ALIAS:
1499	aio_link = EIO_LINK
1500	aio_symlink = EIO_SYMLINK
1501	aio_rename = EIO_RENAME
1502	PPCODE:
1503	{
1504	dREQ;
1505
1506	req->type = ix;
1507	req->sv1 = newSVsv (oldpath);
1508	req->ptr1 = SvPVbyte_nolen (req->sv1);
1509	req->sv2 = newSVsv (newpath);
1510	req->ptr2 = SvPVbyte_nolen (req->sv2);
1511
1512	EIO_SEND;
1513	}
1514
1515	void
1516	aio_mknod (SV8 pathname, int mode, UV dev, SV callback=&PL_sv_undef)
1517	PPCODE:
1518	{
1519	dREQ;
1520
1521	req->type = EIO_MKNOD;
1522	req->sv1 = newSVsv (pathname);
1523	req->ptr1 = SvPVbyte_nolen (req->sv1);
1524	req->int2 = (mode_t)mode;
1525	req->offs = dev;
1526
1527	EIO_SEND;
1528	}
1529
1530	void
1531	aio_busy (double delay, SV *callback=&PL_sv_undef)
1532	PPCODE:
1533	{
1534	dREQ;
1535
1536	req->type = EIO_BUSY;
1537	req->nv1 = delay < 0. ? 0. : delay;
1538
1539	EIO_SEND;
1540	}
1541
1542	void
1543	aio_group (SV *callback=&PL_sv_undef)
1544	PROTOTYPE: ;$
1545	PPCODE:
1546	{
1547	dREQ;
1548
1549	req->type = EIO_GROUP;
1550
1551	req_send (req);
1552	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1553	}
1554
1555	void
1556	aio_nop (SV *callback=&PL_sv_undef)
1557	ALIAS:
1558	aio_nop = EIO_NOP
1559	aio_sync = EIO_SYNC
1560	PPCODE:
1561	{
1562	dREQ;
1563
1564	#endif
1565		1275
1566	void eio_grp_feed (eio_req grp, void (feed)(eio_req *req), int limit)	1276	void eio_grp_feed (eio_req grp, void (feed)(eio_req *req), int limit)
1567	{	1277	{
1568	grp->int2 = limit;	1278	grp->int2 = limit;
1569	grp->feed = feed;	1279	grp->feed = feed;
…		…
1592	grp->grp_first->grp_prev = req;	1302	grp->grp_first->grp_prev = req;
1593		1303
1594	grp->grp_first = req;	1304	grp->grp_first = req;
1595	}	1305	}
1596		1306
		1307	/*****************************************************************************/
		1308	/* misc garbage */
1597		1309
		1310	ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
		1311	{
		1312	worker wrk;
		1313
		1314	wrk.dbuf = 0;
		1315
		1316	eio__sendfile (ofd, ifd, offset, count, &wrk);
		1317
		1318	if (wrk.dbuf)
		1319	free (wrk.dbuf);
		1320	}
		1321

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Comparing libeio/eio.c (file contents): Revision 1.6 by root, Sun May 11 19:11:05 2008 UTC vs. Revision 1.12 by root, Tue May 13 18:54:52 2008 UTC

Diff Legend

Comparing libeio/eio.c (file contents):
Revision 1.6 by root, Sun May 11 19:11:05 2008 UTC vs.
Revision 1.12 by root, Tue May 13 18:54:52 2008 UTC