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

Comparing libeio/eio.c (file contents):
Revision 1.99 by root, Tue Jul 26 11:07:08 2011 UTC vs.
Revision 1.116 by root, Tue Mar 27 19:27:35 2012 UTC

…		…
43		43
44	#include "eio.h"	44	#include "eio.h"
45	#include "ecb.h"	45	#include "ecb.h"
46		46
47	#ifdef EIO_STACKSIZE	47	#ifdef EIO_STACKSIZE
48	# define XTHREAD_STACKSIZE EIO_STACKSIZE	48	# define X_STACKSIZE EIO_STACKSIZE
49	#endif	49	#endif
50	#include "xthread.h"	50	#include "xthread.h"
51		51
52	#include <errno.h>	52	#include <errno.h>
53	#include <stddef.h>	53	#include <stddef.h>
…		…
105	#ifdef _WIN32	105	#ifdef _WIN32
106		106
107	#undef PAGESIZE	107	#undef PAGESIZE
108	#define PAGESIZE 4096 /* GetSystemInfo? */	108	#define PAGESIZE 4096 /* GetSystemInfo? */
109		109
		110	/* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */
		111
110	#ifdef EIO_STRUCT_STATI64	112	#ifdef EIO_STRUCT_STATI64
		113	/* look at perl's non-sloppy stat */
111	#define stat(path,buf) _stati64 (path,buf)	114	#define stat(path,buf) _stati64 (path,buf)
112	#define fstat(fd,buf) _fstati64 (fd,buf)	115	#define fstat(fd,buf) _fstati64 (fd,buf)
113	#endif	116	#endif
114	#define lstat(path,buf) stat (path,buf)	117	#define lstat(path,buf) stat (path,buf)
115	#define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1))	118	#define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1))
…		…
289	#define FUBd \	292	#define FUBd \
290	free (eio_buf)	293	free (eio_buf)
291		294
292	#define EIO_TICKS ((1000000 + 1023) >> 10)	295	#define EIO_TICKS ((1000000 + 1023) >> 10)
293		296
		297	/*****************************************************************************/
		298
		299	struct tmpbuf
		300	{
		301	void *ptr;
		302	int len;
		303	};
		304
		305	static void *
		306	tmpbuf_get (struct tmpbuf *buf, int len)
		307	{
		308	if (buf->len < len)
		309	{
		310	free (buf->ptr);
		311	buf->ptr = malloc (buf->len = len);
		312	}
		313
		314	return buf->ptr;
		315	}
		316
		317	struct tmpbuf;
		318
		319	#if _POSIX_VERSION >= 200809L
		320	#define HAVE_AT 1
		321	#define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD)
		322	#ifndef O_SEARCH
		323	#define O_SEARCH O_RDONLY
		324	#endif
		325	#else
		326	#define HAVE_AT 0
		327	static const char wd_expand (struct tmpbuf tmpbuf, eio_wd wd, const char *path);
		328	#endif
		329
		330	struct eio_pwd
		331	{
		332	#if HAVE_AT
		333	int fd;
		334	#endif
		335	int len;
		336	char str[1]; /* actually, a 0-terminated canonical path */
		337	};
		338
		339	/*****************************************************************************/
		340
294	#define ETP_PRI_MIN EIO_PRI_MIN	341	#define ETP_PRI_MIN EIO_PRI_MIN
295	#define ETP_PRI_MAX EIO_PRI_MAX	342	#define ETP_PRI_MAX EIO_PRI_MAX
296		343
297	struct etp_worker;	344	struct etp_worker;
298		345
…		…
321	static void (*done_poll_cb) (void);	368	static void (*done_poll_cb) (void);
322		369
323	static unsigned int max_poll_time; /* reslock */	370	static unsigned int max_poll_time; /* reslock */
324	static unsigned int max_poll_reqs; /* reslock */	371	static unsigned int max_poll_reqs; /* reslock */
325		372
326	static volatile unsigned int nreqs; /* reqlock */	373	static unsigned int nreqs; /* reqlock */
327	static volatile unsigned int nready; /* reqlock */	374	static unsigned int nready; /* reqlock */
328	static volatile unsigned int npending; /* reqlock */	375	static unsigned int npending; /* reqlock */
329	static volatile unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */	376	static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */
330	static volatile unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */	377	static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */
331		378
332	static xmutex_t wrklock;	379	static xmutex_t wrklock;
333	static xmutex_t reslock;	380	static xmutex_t reslock;
334	static xmutex_t reqlock;	381	static xmutex_t reqlock;
335	static xcond_t reqwait;	382	static xcond_t reqwait;
…		…
343	static xmutex_t preadwritelock;	390	static xmutex_t preadwritelock;
344	#endif	391	#endif
345		392
346	typedef struct etp_worker	393	typedef struct etp_worker
347	{	394	{
		395	struct tmpbuf tmpbuf;
		396
348	/* locked by wrklock */	397	/* locked by wrklock */
349	struct etp_worker prev, next;	398	struct etp_worker prev, next;
350		399
351	xthread_t tid;	400	xthread_t tid;
352		401
353	/* locked by reslock, reqlock or wrklock */
354	ETP_REQ req; / currently processed request */
355
356	#ifdef ETP_WORKER_COMMON	402	#ifdef ETP_WORKER_COMMON
357	ETP_WORKER_COMMON	403	ETP_WORKER_COMMON
358	#endif	404	#endif
359	} etp_worker;	405	} etp_worker;
360		406
…		…
363	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)	409	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
364	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)	410	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
365		411
366	/* worker threads management */	412	/* worker threads management */
367		413
368	static void ecb_cold	414	static void
369	etp_worker_clear (etp_worker *wrk)	415	etp_worker_clear (etp_worker *wrk)
370	{	416	{
371	}	417	}
372		418
373	static void ecb_cold	419	static void ecb_cold
374	etp_worker_free (etp_worker *wrk)	420	etp_worker_free (etp_worker *wrk)
375	{	421	{
		422	free (wrk->tmpbuf.ptr);
		423
376	wrk->next->prev = wrk->prev;	424	wrk->next->prev = wrk->prev;
377	wrk->prev->next = wrk->next;	425	wrk->prev->next = wrk->next;
378		426
379	free (wrk);	427	free (wrk);
380	}	428	}
…		…
558	}	606	}
559		607
560	static void ecb_cold	608	static void ecb_cold
561	etp_end_thread (void)	609	etp_end_thread (void)
562	{	610	{
563	eio_req *req = calloc (1, sizeof (eio_req));	611	eio_req req = calloc (1, sizeof (eio_req)); / will be freed by worker */
564		612
565	req->type = -1;	613	req->type = -1;
566	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;	614	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
567		615
568	X_LOCK (reqlock);	616	X_LOCK (reqlock);
…		…
1054	todo -= len;	1102	todo -= len;
1055	}	1103	}
1056		1104
1057	FUBd;	1105	FUBd;
1058		1106
1059	errno = 0;	1107	/* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */
		1108	/* but not for e.g. EIO or eof, so we also never fail */
1060	return count;	1109	return 0;
1061	}	1110	}
1062		1111
1063	#endif	1112	#endif
1064		1113
1065	/* sendfile always needs emulation */	1114	/* sendfile always needs emulation */
…		…
1334	}	1383	}
1335		1384
1336	/*****************************************************************************/	1385	/*****************************************************************************/
1337	/* requests implemented outside eio_execute, because they are so large */	1386	/* requests implemented outside eio_execute, because they are so large */
1338		1387
		1388	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
1339	static void	1389	static int
1340	eio__realpath (eio_req req, etp_worker self)	1390	eio__realpath (struct tmpbuf tmpbuf, eio_wd wd, const char path)
1341	{	1391	{
1342	char *rel = req->ptr1;	1392	const char *rel = path;
1343	char *res;	1393	char *res;
1344	char tmp1, tmp2;	1394	char tmp1, tmp2;
1345	#if SYMLOOP_MAX > 32	1395	#if SYMLOOP_MAX > 32
1346	int symlinks = SYMLOOP_MAX;	1396	int symlinks = SYMLOOP_MAX;
1347	#else	1397	#else
1348	int symlinks = 32;	1398	int symlinks = 32;
1349	#endif	1399	#endif
1350		1400
1351	req->result = -1;
1352
1353	errno = EINVAL;	1401	errno = EINVAL;
1354	if (!rel)	1402	if (!rel)
1355	return;	1403	return -1;
1356		1404
1357	errno = ENOENT;	1405	errno = ENOENT;
1358	if (!*rel)	1406	if (!*rel)
1359	return;	1407	return -1;
1360		1408
1361	if (!req->ptr2)	1409	res = tmpbuf_get (tmpbuf, PATH_MAX * 3);
1362	{
1363	X_LOCK (wrklock);
1364	req->flags \|= EIO_FLAG_PTR2_FREE;
1365	X_UNLOCK (wrklock);
1366	req->ptr2 = malloc (PATH_MAX * 3);
1367
1368	errno = ENOMEM;
1369	if (!req->ptr2)
1370	return;
1371	}
1372
1373	res = req->ptr2;
1374	tmp1 = res + PATH_MAX;	1410	tmp1 = res + PATH_MAX;
1375	tmp2 = tmp1 + PATH_MAX;	1411	tmp2 = tmp1 + PATH_MAX;
1376		1412
1377	#if 0 /* disabled, the musl way to do things is just too racy */	1413	#if 0 /* disabled, the musl way to do things is just too racy */
1378	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)	1414	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
…		…
1397	#endif	1433	#endif
1398	#endif	1434	#endif
1399		1435
1400	if (*rel != '/')	1436	if (*rel != '/')
1401	{	1437	{
		1438	int len;
		1439
		1440	errno = ENOENT;
		1441	if (wd == EIO_INVALID_WD)
		1442	return -1;
		1443
		1444	if (wd == EIO_CWD)
		1445	{
1402	if (!getcwd (res, PATH_MAX))	1446	if (!getcwd (res, PATH_MAX))
1403	return;	1447	return -1;
		1448
		1449	len = strlen (res);
		1450	}
		1451	else
		1452	memcpy (res, wd->str, len = wd->len);
1404		1453
1405	if (res [1]) /* only use if not / */	1454	if (res [1]) /* only use if not / */
1406	res += strlen (res);	1455	res += len;
1407	}	1456	}
1408		1457
1409	while (*rel)	1458	while (*rel)
1410	{	1459	{
1411	eio_ssize_t len, linklen;	1460	eio_ssize_t len, linklen;
1412	char *beg = rel;	1461	const char *beg = rel;
1413		1462
1414	while (rel && rel != '/')	1463	while (rel && rel != '/')
1415	++rel;	1464	++rel;
1416		1465
1417	len = rel - beg;	1466	len = rel - beg;
…		…
1429		1478
1430	if (beg [1] == '.' && len == 2)	1479	if (beg [1] == '.' && len == 2)
1431	{	1480	{
1432	/* .. - back up one component, if possible */	1481	/* .. - back up one component, if possible */
1433		1482
1434	while (res != req->ptr2)	1483	while (res != tmpbuf->ptr)
1435	if (*--res == '/')	1484	if (*--res == '/')
1436	break;	1485	break;
1437		1486
1438	continue;	1487	continue;
1439	}	1488	}
1440	}	1489	}
1441		1490
1442	errno = ENAMETOOLONG;	1491	errno = ENAMETOOLONG;
1443	if (res + 1 + len + 1 >= tmp1)	1492	if (res + 1 + len + 1 >= tmp1)
1444	return;	1493	return -1;
1445		1494
1446	/* copy one component */	1495	/* copy one component */
1447	*res = '/';	1496	*res = '/';
1448	memcpy (res + 1, beg, len);	1497	memcpy (res + 1, beg, len);
1449		1498
1450	/* zero-terminate, for readlink */	1499	/* zero-terminate, for readlink */
1451	res [len + 1] = 0;	1500	res [len + 1] = 0;
1452		1501
1453	/* now check if it's a symlink */	1502	/* now check if it's a symlink */
1454	linklen = readlink (req->ptr2, tmp1, PATH_MAX);	1503	linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX);
1455		1504
1456	if (linklen < 0)	1505	if (linklen < 0)
1457	{	1506	{
1458	if (errno != EINVAL)	1507	if (errno != EINVAL)
1459	return;	1508	return -1;
1460		1509
1461	/* it's a normal directory. hopefully */	1510	/* it's a normal directory. hopefully */
1462	res += len + 1;	1511	res += len + 1;
1463	}	1512	}
1464	else	1513	else
…		…
1466	/* yay, it was a symlink - build new path in tmp2 */	1515	/* yay, it was a symlink - build new path in tmp2 */
1467	int rellen = strlen (rel);	1516	int rellen = strlen (rel);
1468		1517
1469	errno = ENAMETOOLONG;	1518	errno = ENAMETOOLONG;
1470	if (linklen + 1 + rellen >= PATH_MAX)	1519	if (linklen + 1 + rellen >= PATH_MAX)
1471	return;	1520	return -1;
1472		1521
1473	errno = ELOOP;	1522	errno = ELOOP;
1474	if (!--symlinks)	1523	if (!--symlinks)
1475	return;	1524	return -1;
1476		1525
1477	if (*tmp1 == '/')	1526	if (*tmp1 == '/')
1478	res = req->ptr2; /* symlink resolves to an absolute path */	1527	res = tmpbuf->ptr; /* symlink resolves to an absolute path */
1479		1528
1480	/* we need to be careful, as rel might point into tmp2 already */	1529	/* we need to be careful, as rel might point into tmp2 already */
1481	memmove (tmp2 + linklen + 1, rel, rellen + 1);	1530	memmove (tmp2 + linklen + 1, rel, rellen + 1);
1482	tmp2 [linklen] = '/';	1531	tmp2 [linklen] = '/';
1483	memcpy (tmp2, tmp1, linklen);	1532	memcpy (tmp2, tmp1, linklen);
…		…
1485	rel = tmp2;	1534	rel = tmp2;
1486	}	1535	}
1487	}	1536	}
1488		1537
1489	/* special case for the lone root path */	1538	/* special case for the lone root path */
1490	if (res == req->ptr2)	1539	if (res == tmpbuf->ptr)
1491	*res++ = '/';	1540	*res++ = '/';
1492		1541
1493	req->result = res - (char *)req->ptr2;	1542	return res - (char *)tmpbuf->ptr;
1494
1495	done:
1496	req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */
1497	}	1543	}
1498		1544
1499	static signed char	1545	static signed char
1500	eio_dent_cmp (const eio_dirent a, const eio_dirent b)	1546	eio_dent_cmp (const eio_dirent a, const eio_dirent b)
1501	{	1547	{
…		…
1689	#ifdef _WIN32	1735	#ifdef _WIN32
1690	{	1736	{
1691	int len = strlen ((const char *)req->ptr1);	1737	int len = strlen ((const char *)req->ptr1);
1692	char *path = malloc (MAX_PATH);	1738	char *path = malloc (MAX_PATH);
1693	const char *fmt;	1739	const char *fmt;
		1740	const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
1694		1741
1695	if (!len)	1742	if (!len)
1696	fmt = "./*";	1743	fmt = "./*";
1697	else if (((const char )req->ptr1)[len - 1] == '/' \|\| ((const char )req->ptr1)[len - 1] == '\\')	1744	else if (reqpath[len - 1] == '/' \|\| reqpath[len - 1] == '\\')
1698	fmt = "%s*";	1745	fmt = "%s*";
1699	else	1746	else
1700	fmt = "%s/*";	1747	fmt = "%s/*";
1701		1748
1702	_snprintf (path, MAX_PATH, fmt, (const char *)req->ptr1);	1749	_snprintf (path, MAX_PATH, fmt, reqpath);
1703	dirp = FindFirstFile (path, &entp);	1750	dirp = FindFirstFile (path, &entp);
1704	free (path);	1751	free (path);
1705		1752
1706	if (dirp == INVALID_HANDLE_VALUE)	1753	if (dirp == INVALID_HANDLE_VALUE)
1707	{	1754	{
1708	dirp = 0;
1709
1710	/* should steal _dosmaperr */	1755	/* should steal _dosmaperr */
1711	switch (GetLastError ())	1756	switch (GetLastError ())
1712	{	1757	{
1713	case ERROR_FILE_NOT_FOUND:	1758	case ERROR_FILE_NOT_FOUND:
1714	req->result = 0;	1759	req->result = 0;
1715	break;	1760	break;
1716		1761
1717	case ERROR_INVALID_NAME:	1762	case ERROR_INVALID_NAME:
1718	case ERROR_PATH_NOT_FOUND:	1763	case ERROR_PATH_NOT_FOUND:
1719	case ERROR_NO_MORE_FILES:	1764	case ERROR_NO_MORE_FILES:
1720	errno = ENOENT;	1765	errno = ENOENT;
1721	break;	1766	break;
1722		1767
1723	case ERROR_NOT_ENOUGH_MEMORY:	1768	case ERROR_NOT_ENOUGH_MEMORY:
1724	errno = ENOMEM;	1769	errno = ENOMEM;
1725	break;	1770	break;
1726		1771
1727	default:	1772	default:
1728	errno = EINVAL;	1773	errno = EINVAL;
1729	break;	1774	break;
1730	}	1775	}
		1776
		1777	return;
1731	}	1778	}
1732	}	1779	}
1733	#else	1780	#else
		1781	#if HAVE_AT
		1782	if (req->wd)
		1783	{
		1784	int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC \| O_SEARCH \| O_DIRECTORY);
		1785
		1786	if (fd < 0)
		1787	return;
		1788
		1789	dirp = fdopendir (fd);
		1790
		1791	if (!dirp)
		1792	close (fd);
		1793	}
		1794	else
1734	dirp = opendir (req->ptr1);	1795	dirp = opendir (req->ptr1);
		1796	#else
		1797	dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1));
		1798	#endif
		1799
		1800	if (!dirp)
		1801	return;
1735	#endif	1802	#endif
1736		1803
1737	if (req->flags & EIO_FLAG_PTR1_FREE)	1804	if (req->flags & EIO_FLAG_PTR1_FREE)
1738	free (req->ptr1);	1805	free (req->ptr1);
1739		1806
1740	req->flags \|= EIO_FLAG_PTR1_FREE \| EIO_FLAG_PTR2_FREE;	1807	req->flags \|= EIO_FLAG_PTR1_FREE \| EIO_FLAG_PTR2_FREE;
1741	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;	1808	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
1742	req->ptr2 = names = malloc (namesalloc);	1809	req->ptr2 = names = malloc (namesalloc);
1743		1810
1744	if (dirp && names && (!flags \|\| dents))	1811	if (!names \|\| (flags && !dents))
		1812	return;
		1813
1745	for (;;)	1814	for (;;)
1746	{	1815	{
1747	int done;	1816	int done;
1748		1817
1749	#ifdef _WIN32	1818	#ifdef _WIN32
1750	done = !dirp;	1819	done = !dirp;
1751	#else	1820	#else
1752	errno = 0;	1821	errno = 0;
1753	entp = readdir (dirp);	1822	entp = readdir (dirp);
1754	done = !entp;	1823	done = !entp;
1755	#endif	1824	#endif
1756		1825
1757	if (done)	1826	if (done)
1758	{	1827	{
1759	#ifndef _WIN32	1828	#ifndef _WIN32
1760	int old_errno = errno;	1829	int old_errno = errno;
1761	closedir (dirp);	1830	closedir (dirp);
1762	errno = old_errno;	1831	errno = old_errno;
1763		1832
1764	if (errno)	1833	if (errno)
1765	break;	1834	break;
1766	#endif	1835	#endif
1767		1836
1768	/* sort etc. */	1837	/* sort etc. */
1769	req->int1 = flags;	1838	req->int1 = flags;
1770	req->result = dentoffs;	1839	req->result = dentoffs;
1771		1840
1772	if (flags & EIO_READDIR_STAT_ORDER)	1841	if (flags & EIO_READDIR_STAT_ORDER)
1773	eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits);	1842	eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits);
1774	else if (flags & EIO_READDIR_DIRS_FIRST)	1843	else if (flags & EIO_READDIR_DIRS_FIRST)
1775	if (flags & EIO_READDIR_FOUND_UNKNOWN)	1844	if (flags & EIO_READDIR_FOUND_UNKNOWN)
1776	eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */	1845	eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */
1777	else	1846	else
		1847	{
		1848	/* in this case, all is known, and we just put dirs first and sort them */
		1849	eio_dirent *oth = dents + dentoffs;
		1850	eio_dirent *dir = dents;
		1851
		1852	/* now partition dirs to the front, and non-dirs to the back */
		1853	/* by walking from both sides and swapping if necessary */
		1854	while (oth > dir)
		1855	{
		1856	if (dir->type == EIO_DT_DIR)
		1857	++dir;
		1858	else if ((--oth)->type == EIO_DT_DIR)
		1859	{
		1860	eio_dirent tmp = dir; dir = oth; oth = tmp;
		1861
		1862	++dir;
		1863	}
		1864	}
		1865
		1866	/* now sort the dirs only (dirs all have the same score) */
		1867	eio_dent_sort (dents, dir - dents, 0, inode_bits);
		1868	}
		1869
		1870	break;
		1871	}
		1872
		1873	/* now add the entry to our list(s) */
		1874	name = D_NAME (entp);
		1875
		1876	/* skip . and .. entries */
		1877	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
		1878	{
		1879	int len = D_NAMLEN (entp) + 1;
		1880
		1881	while (ecb_expect_false (namesoffs + len > namesalloc))
		1882	{
		1883	namesalloc *= 2;
		1884	req->ptr2 = names = realloc (names, namesalloc);
		1885
		1886	if (!names)
		1887	break;
		1888	}
		1889
		1890	memcpy (names + namesoffs, name, len);
		1891
		1892	if (dents)
		1893	{
		1894	struct eio_dirent *ent;
		1895
		1896	if (ecb_expect_false (dentoffs == dentalloc))
1778	{	1897	{
1779	/* in this case, all is known, and we just put dirs first and sort them */	1898	dentalloc *= 2;
		1899	req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
		1900
		1901	if (!dents)
		1902	break;
		1903	}
		1904
1780	eio_dirent *oth = dents + dentoffs;	1905	ent = dents + dentoffs;
1781	eio_dirent *dir = dents;
1782		1906
1783	/* now partition dirs to the front, and non-dirs to the back */	1907	ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1784	/* by walking from both sides and swapping if necessary */	1908	ent->namelen = len - 1;
1785	while (oth > dir)	1909	ent->inode = D_INO (entp);
		1910
		1911	inode_bits \|= ent->inode;
		1912
		1913	switch (D_TYPE (entp))
		1914	{
		1915	default:
		1916	ent->type = EIO_DT_UNKNOWN;
		1917	flags \|= EIO_READDIR_FOUND_UNKNOWN;
		1918	break;
		1919
		1920	#ifdef DT_FIFO
		1921	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
		1922	#endif
		1923	#ifdef DT_CHR
		1924	case DT_CHR: ent->type = EIO_DT_CHR; break;
		1925	#endif
		1926	#ifdef DT_MPC
		1927	case DT_MPC: ent->type = EIO_DT_MPC; break;
		1928	#endif
		1929	#ifdef DT_DIR
		1930	case DT_DIR: ent->type = EIO_DT_DIR; break;
		1931	#endif
		1932	#ifdef DT_NAM
		1933	case DT_NAM: ent->type = EIO_DT_NAM; break;
		1934	#endif
		1935	#ifdef DT_BLK
		1936	case DT_BLK: ent->type = EIO_DT_BLK; break;
		1937	#endif
		1938	#ifdef DT_MPB
		1939	case DT_MPB: ent->type = EIO_DT_MPB; break;
		1940	#endif
		1941	#ifdef DT_REG
		1942	case DT_REG: ent->type = EIO_DT_REG; break;
		1943	#endif
		1944	#ifdef DT_NWK
		1945	case DT_NWK: ent->type = EIO_DT_NWK; break;
		1946	#endif
		1947	#ifdef DT_CMP
		1948	case DT_CMP: ent->type = EIO_DT_CMP; break;
		1949	#endif
		1950	#ifdef DT_LNK
		1951	case DT_LNK: ent->type = EIO_DT_LNK; break;
		1952	#endif
		1953	#ifdef DT_SOCK
		1954	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
		1955	#endif
		1956	#ifdef DT_DOOR
		1957	case DT_DOOR: ent->type = EIO_DT_DOOR; break;
		1958	#endif
		1959	#ifdef DT_WHT
		1960	case DT_WHT: ent->type = EIO_DT_WHT; break;
		1961	#endif
		1962	}
		1963
		1964	ent->score = 7;
		1965
		1966	if (flags & EIO_READDIR_DIRS_FIRST)
		1967	{
		1968	if (ent->type == EIO_DT_UNKNOWN)
1786	{	1969	{
1787	if (dir->type == EIO_DT_DIR)	1970	if (name == '.') / leading dots are likely directories, and, in any case, rare */
1788	++dir;	1971	ent->score = 1;
1789	else if ((--oth)->type == EIO_DT_DIR)	1972	else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1790	{	1973	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1791	eio_dirent tmp = dir; dir = oth; oth = tmp;
1792
1793	++dir;
1794	}
1795	}	1974	}
1796		1975	else if (ent->type == EIO_DT_DIR)
1797	/* now sort the dirs only (dirs all have the same score) */	1976	ent->score = 0;
1798	eio_dent_sort (dents, dir - dents, 0, inode_bits);
1799	}	1977	}
1800
1801	break;
1802	}
1803
1804	/* now add the entry to our list(s) */
1805	name = D_NAME (entp);
1806
1807	/* skip . and .. entries */
1808	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
1809	{
1810	int len = D_NAMLEN (entp) + 1;
1811
1812	while (ecb_expect_false (namesoffs + len > namesalloc))
1813	{
1814	namesalloc *= 2;
1815	req->ptr2 = names = realloc (names, namesalloc);
1816
1817	if (!names)
1818	break;
1819	}	1978	}
1820		1979
1821	memcpy (names + namesoffs, name, len);
1822
1823	if (dents)
1824	{
1825	struct eio_dirent *ent;
1826
1827	if (ecb_expect_false (dentoffs == dentalloc))
1828	{
1829	dentalloc *= 2;
1830	req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
1831
1832	if (!dents)
1833	break;
1834	}
1835
1836	ent = dents + dentoffs;
1837
1838	ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1839	ent->namelen = len - 1;
1840	ent->inode = D_INO (entp);
1841
1842	inode_bits \|= ent->inode;
1843
1844	switch (D_TYPE (entp))
1845	{
1846	default:
1847	ent->type = EIO_DT_UNKNOWN;
1848	flags \|= EIO_READDIR_FOUND_UNKNOWN;
1849	break;
1850
1851	#ifdef DT_FIFO
1852	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1853	#endif
1854	#ifdef DT_CHR
1855	case DT_CHR: ent->type = EIO_DT_CHR; break;
1856	#endif
1857	#ifdef DT_MPC
1858	case DT_MPC: ent->type = EIO_DT_MPC; break;
1859	#endif
1860	#ifdef DT_DIR
1861	case DT_DIR: ent->type = EIO_DT_DIR; break;
1862	#endif
1863	#ifdef DT_NAM
1864	case DT_NAM: ent->type = EIO_DT_NAM; break;
1865	#endif
1866	#ifdef DT_BLK
1867	case DT_BLK: ent->type = EIO_DT_BLK; break;
1868	#endif
1869	#ifdef DT_MPB
1870	case DT_MPB: ent->type = EIO_DT_MPB; break;
1871	#endif
1872	#ifdef DT_REG
1873	case DT_REG: ent->type = EIO_DT_REG; break;
1874	#endif
1875	#ifdef DT_NWK
1876	case DT_NWK: ent->type = EIO_DT_NWK; break;
1877	#endif
1878	#ifdef DT_CMP
1879	case DT_CMP: ent->type = EIO_DT_CMP; break;
1880	#endif
1881	#ifdef DT_LNK
1882	case DT_LNK: ent->type = EIO_DT_LNK; break;
1883	#endif
1884	#ifdef DT_SOCK
1885	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
1886	#endif
1887	#ifdef DT_DOOR
1888	case DT_DOOR: ent->type = EIO_DT_DOOR; break;
1889	#endif
1890	#ifdef DT_WHT
1891	case DT_WHT: ent->type = EIO_DT_WHT; break;
1892	#endif
1893	}
1894
1895	ent->score = 7;
1896
1897	if (flags & EIO_READDIR_DIRS_FIRST)
1898	{
1899	if (ent->type == EIO_DT_UNKNOWN)
1900	{
1901	if (name == '.') / leading dots are likely directories, and, in any case, rare */
1902	ent->score = 1;
1903	else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */
1904	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1905	}
1906	else if (ent->type == EIO_DT_DIR)
1907	ent->score = 0;
1908	}
1909	}
1910
1911	namesoffs += len;	1980	namesoffs += len;
1912	++dentoffs;	1981	++dentoffs;
1913	}	1982	}
1914		1983
1915	if (EIO_CANCELLED (req))	1984	if (EIO_CANCELLED (req))
1916	{	1985	{
1917	errno = ECANCELED;	1986	errno = ECANCELED;
1918	break;	1987	break;
1919	}	1988	}
1920		1989
1921	#ifdef _WIN32	1990	#ifdef _WIN32
1922	if (!FindNextFile (dirp, &entp))	1991	if (!FindNextFile (dirp, &entp))
1923	{	1992	{
1924	FindClose (dirp);	1993	FindClose (dirp);
1925	dirp = 0;	1994	dirp = 0;
1926	}	1995	}
1927	#endif	1996	#endif
1928	}	1997	}
1929	}	1998	}
		1999
		2000	/*****************************************************************************/
		2001	/* working directory stuff */
		2002	/* various deficiencies in the posix 2008 api force us to */
		2003	/* keep the absolute path in string form at all times */
		2004	/* fuck yeah. */
		2005
		2006	#if !HAVE_AT
		2007
		2008	/* a bit like realpath, but usually faster because it doesn'T have to return */
		2009	/* an absolute or canonical path */
		2010	static const char *
		2011	wd_expand (struct tmpbuf tmpbuf, eio_wd wd, const char path)
		2012	{
		2013	if (!wd \|\| *path == '/')
		2014	return path;
		2015
		2016	if (path [0] == '.' && !path [1])
		2017	return wd->str;
		2018
		2019	{
		2020	int l1 = wd->len;
		2021	int l2 = strlen (path);
		2022
		2023	char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2);
		2024
		2025	memcpy (res, wd->str, l1);
		2026	res [l1] = '/';
		2027	memcpy (res + l1 + 1, path, l2 + 1);
		2028
		2029	return res;
		2030	}
		2031	}
		2032
		2033	#endif
		2034
		2035	static eio_wd
		2036	eio__wd_open_sync (struct tmpbuf tmpbuf, eio_wd wd, const char path)
		2037	{
		2038	int fd;
		2039	eio_wd res;
		2040	int len = eio__realpath (tmpbuf, wd, path);
		2041
		2042	if (len < 0)
		2043	return EIO_INVALID_WD;
		2044
		2045	#if HAVE_AT
		2046	fd = openat (WD2FD (wd), path, O_CLOEXEC \| O_SEARCH \| O_DIRECTORY);
		2047
		2048	if (fd < 0)
		2049	return EIO_INVALID_WD;
		2050	#endif
		2051
		2052	res = malloc (sizeof (res) + len); / one extra 0-byte */
		2053
		2054	#if HAVE_AT
		2055	res->fd = fd;
		2056	#endif
		2057
		2058	res->len = len;
		2059	memcpy (res->str, tmpbuf->ptr, len);
		2060	res->str [len] = 0;
		2061
		2062	return res;
		2063	}
		2064
		2065	eio_wd
		2066	eio_wd_open_sync (eio_wd wd, const char *path)
		2067	{
		2068	struct tmpbuf tmpbuf = { 0 };
		2069	wd = eio__wd_open_sync (&tmpbuf, wd, path);
		2070	free (tmpbuf.ptr);
		2071
		2072	return wd;
		2073	}
		2074
		2075	void
		2076	eio_wd_close_sync (eio_wd wd)
		2077	{
		2078	if (wd != EIO_INVALID_WD && wd != EIO_CWD)
		2079	{
		2080	#if HAVE_AT
		2081	close (wd->fd);
		2082	#endif
		2083	free (wd);
		2084	}
		2085	}
		2086
		2087	#if HAVE_AT
		2088
		2089	/* they forgot these */
		2090
		2091	static int
		2092	eio__truncateat (int dirfd, const char *path, off_t length)
		2093	{
		2094	int fd = openat (dirfd, path, O_WRONLY \| O_CLOEXEC);
		2095	int res;
		2096
		2097	if (fd < 0)
		2098	return fd;
		2099
		2100	res = ftruncate (fd, length);
		2101	close (fd);
		2102	return res;
		2103	}
		2104
		2105	static int
		2106	eio__statvfsat (int dirfd, const char path, struct statvfs buf)
		2107	{
		2108	int fd = openat (dirfd, path, O_SEARCH \| O_CLOEXEC);
		2109	int res;
		2110
		2111	if (fd < 0)
		2112	return fd;
		2113
		2114	res = fstatvfs (fd, buf);
		2115	close (fd);
		2116	return res;
		2117
		2118	}
		2119
		2120	#endif
1930		2121
1931	/*****************************************************************************/	2122	/*****************************************************************************/
1932		2123
1933	#define ALLOC(len) \	2124	#define ALLOC(len) \
1934	if (!req->ptr2) \	2125	if (!req->ptr2) \
…		…
1943	req->result = -1; \	2134	req->result = -1; \
1944	break; \	2135	break; \
1945	} \	2136	} \
1946	}	2137	}
1947		2138
		2139	static void ecb_noinline ecb_cold
		2140	etp_proc_init (void)
		2141	{
		2142	#if HAVE_PRCTL_SET_NAME
		2143	/* provide a more sensible "thread name" */
		2144	char name[16 + 1];
		2145	const int namelen = sizeof (name) - 1;
		2146	int len;
		2147
		2148	prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0);
		2149	name [namelen] = 0;
		2150	len = strlen (name);
		2151	strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio");
		2152	prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
		2153	#endif
		2154	}
		2155
1948	X_THREAD_PROC (etp_proc)	2156	X_THREAD_PROC (etp_proc)
1949	{	2157	{
1950	ETP_REQ *req;	2158	ETP_REQ *req;
1951	struct timespec ts;	2159	struct timespec ts;
1952	etp_worker self = (etp_worker )thr_arg;	2160	etp_worker self = (etp_worker )thr_arg;
1953		2161
1954	#if HAVE_PRCTL_SET_NAME	2162	etp_proc_init ();
1955	prctl (PR_SET_NAME, (unsigned long)"eio_thread", 0, 0, 0);
1956	#endif
1957		2163
1958	/* try to distribute timeouts somewhat evenly */	2164	/* try to distribute timeouts somewhat evenly */
1959	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);	2165	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1960		2166
1961	for (;;)	2167	for (;;)
…		…
1964		2170
1965	X_LOCK (reqlock);	2171	X_LOCK (reqlock);
1966		2172
1967	for (;;)	2173	for (;;)
1968	{	2174	{
1969	self->req = req = reqq_shift (&req_queue);	2175	req = reqq_shift (&req_queue);
1970		2176
1971	if (req)	2177	if (req)
1972	break;	2178	break;
1973		2179
1974	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */	2180	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */
…		…
2012	++npending;	2218	++npending;
2013		2219
2014	if (!reqq_push (&res_queue, req) && want_poll_cb)	2220	if (!reqq_push (&res_queue, req) && want_poll_cb)
2015	want_poll_cb ();	2221	want_poll_cb ();
2016		2222
2017	self->req = 0;
2018	etp_worker_clear (self);	2223	etp_worker_clear (self);
2019		2224
2020	X_UNLOCK (reslock);	2225	X_UNLOCK (reslock);
2021	}	2226	}
2022		2227
2023	quit:	2228	quit:
		2229	free (req);
		2230
2024	X_LOCK (wrklock);	2231	X_LOCK (wrklock);
2025	etp_worker_free (self);	2232	etp_worker_free (self);
2026	X_UNLOCK (wrklock);	2233	X_UNLOCK (wrklock);
2027		2234
2028	return 0;	2235	return 0;
…		…
2071	}	2278	}
2072		2279
2073	static void	2280	static void
2074	eio_execute (etp_worker self, eio_req req)	2281	eio_execute (etp_worker self, eio_req req)
2075	{	2282	{
		2283	#if HAVE_AT
		2284	int dirfd;
		2285	#else
		2286	const char *path;
		2287	#endif
		2288
2076	if (ecb_expect_false (EIO_CANCELLED (req)))	2289	if (ecb_expect_false (EIO_CANCELLED (req)))
2077	{	2290	{
2078	req->result = -1;	2291	req->result = -1;
2079	req->errorno = ECANCELED;	2292	req->errorno = ECANCELED;
2080	return;	2293	return;
2081	}	2294	}
2082		2295
		2296	if (ecb_expect_false (req->wd == EIO_INVALID_WD))
		2297	{
		2298	req->result = -1;
		2299	req->errorno = ENOENT;
		2300	return;
		2301	}
		2302
		2303	if (req->type >= EIO_OPEN)
		2304	{
		2305	#if HAVE_AT
		2306	dirfd = WD2FD (req->wd);
		2307	#else
		2308	path = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
		2309	#endif
		2310	}
		2311
2083	switch (req->type)	2312	switch (req->type)
2084	{	2313	{
		2314	case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);
		2315	req->result = req->wd == EIO_INVALID_WD ? -1 : 0;
		2316	break;
		2317	case EIO_WD_CLOSE: req->result = 0;
		2318	eio_wd_close_sync (req->wd); break;
		2319
2085	case EIO_READ: ALLOC (req->size);	2320	case EIO_READ: ALLOC (req->size);
2086	req->result = req->offs >= 0	2321	req->result = req->offs >= 0
2087	? pread (req->int1, req->ptr2, req->size, req->offs)	2322	? pread (req->int1, req->ptr2, req->size, req->offs)
2088	: read (req->int1, req->ptr2, req->size); break;	2323	: read (req->int1, req->ptr2, req->size); break;
2089	case EIO_WRITE: req->result = req->offs >= 0	2324	case EIO_WRITE: req->result = req->offs >= 0
…		…
2091	: write (req->int1, req->ptr2, req->size); break;	2326	: write (req->int1, req->ptr2, req->size); break;
2092		2327
2093	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	2328	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
2094	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;	2329	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
2095		2330
		2331	#if HAVE_AT
		2332
2096	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2333	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2097	req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2334	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;
2098	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2335	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2336	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;
		2337	case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;
		2338	case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;
		2339	case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;
		2340	case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;
		2341
		2342	case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;
		2343	case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;
		2344	case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;
		2345	case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break;
		2346	case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break;
		2347	case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;
		2348	case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
		2349	case EIO_READLINK: ALLOC (PATH_MAX);
		2350	req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;
		2351	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2352	req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2353	case EIO_UTIME:
		2354	case EIO_FUTIME:
		2355	{
		2356	struct timespec ts[2];
		2357	struct timespec *times;
		2358
		2359	if (req->nv1 != -1. \|\| req->nv2 != -1.)
		2360	{
		2361	ts[0].tv_sec = req->nv1;
		2362	ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9;
		2363	ts[1].tv_sec = req->nv2;
		2364	ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9;
		2365
		2366	times = ts;
		2367	}
		2368	else
		2369	times = 0;
		2370
		2371	req->result = req->type == EIO_FUTIME
		2372	? futimens (req->int1, times)
		2373	: utimensat (dirfd, req->ptr1, times, 0);
		2374	}
		2375	break;
		2376
		2377	#else
		2378
		2379	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2380	req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2381	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2099	req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2382	req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2383	case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;
		2384	case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break;
		2385	case EIO_TRUNCATE: req->result = truncate (path , req->offs); break;
		2386	case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break;
		2387
		2388	case EIO_UNLINK: req->result = unlink (path ); break;
		2389	case EIO_RMDIR: req->result = rmdir (path ); break;
		2390	case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break;
		2391	case EIO_RENAME: req->result = rename (path , req->ptr2); break;
		2392	case EIO_LINK: req->result = link (path , req->ptr2); break;
		2393	case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break;
		2394	case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;
		2395	case EIO_READLINK: ALLOC (PATH_MAX);
		2396	req->result = readlink (path, req->ptr2, PATH_MAX); break;
		2397	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2398	req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2399
		2400	case EIO_UTIME:
		2401	case EIO_FUTIME:
		2402	{
		2403	struct timeval tv[2];
		2404	struct timeval *times;
		2405
		2406	if (req->nv1 != -1. \|\| req->nv2 != -1.)
		2407	{
		2408	tv[0].tv_sec = req->nv1;
		2409	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6;
		2410	tv[1].tv_sec = req->nv2;
		2411	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6;
		2412
		2413	times = tv;
		2414	}
		2415	else
		2416	times = 0;
		2417
		2418	req->result = req->type == EIO_FUTIME
		2419	? futimes (req->int1, times)
		2420	: utimes (req->ptr1, times);
		2421	}
		2422	break;
		2423
		2424	#endif
		2425
		2426	case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))
		2427	{
		2428	ALLOC (req->result);
		2429	memcpy (req->ptr2, self->tmpbuf.ptr, req->result);
		2430	}
		2431	break;
		2432
2100	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2433	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2101	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;	2434	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
2102		2435
2103	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2104	req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
2105	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));	2436	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2106	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;	2437	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
2107		2438
2108	case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
2109	case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;	2439	case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
2110	case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
2111	case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;	2440	case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
2112	case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
2113	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;	2441	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
2114		2442
2115	case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break;
2116	case EIO_CLOSE: req->result = close (req->int1); break;	2443	case EIO_CLOSE: req->result = close (req->int1); break;
2117	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;	2444	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
2118	case EIO_UNLINK: req->result = unlink (req->ptr1); break;
2119	case EIO_RMDIR: req->result = rmdir (req->ptr1); break;
2120	case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
2121	case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
2122	case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
2123	case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
2124	case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
2125
2126	case EIO_REALPATH: eio__realpath (req, self); break;
2127
2128	case EIO_READLINK: ALLOC (PATH_MAX);
2129	req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break;
2130
2131	case EIO_SYNC: req->result = 0; sync (); break;	2445	case EIO_SYNC: req->result = 0; sync (); break;
2132	case EIO_FSYNC: req->result = fsync (req->int1); break;	2446	case EIO_FSYNC: req->result = fsync (req->int1); break;
2133	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;	2447	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
2134	case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;	2448	case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
2135	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;	2449	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
…		…
2154	req->result = select (0, 0, 0, 0, &tv);	2468	req->result = select (0, 0, 0, 0, &tv);
2155	}	2469	}
2156	#endif	2470	#endif
2157	break;	2471	break;
2158		2472
2159	case EIO_UTIME:
2160	case EIO_FUTIME:
2161	{
2162	struct timeval tv[2];
2163	struct timeval *times;
2164
2165	if (req->nv1 != -1. \|\| req->nv2 != -1.)
2166	{
2167	tv[0].tv_sec = req->nv1;
2168	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
2169	tv[1].tv_sec = req->nv2;
2170	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
2171
2172	times = tv;
2173	}
2174	else
2175	times = 0;
2176
2177	req->result = req->type == EIO_FUTIME
2178	? futimes (req->int1, times)
2179	: utimes (req->ptr1, times);
2180	}
2181	break;
2182
2183	case EIO_GROUP:	2473	case EIO_GROUP:
2184	abort (); /* handled in eio_request */	2474	abort (); /* handled in eio_request */
2185		2475
2186	case EIO_NOP:	2476	case EIO_NOP:
2187	req->result = 0;	2477	req->result = 0;
…		…
2199		2489
2200	req->errorno = errno;	2490	req->errorno = errno;
2201	}	2491	}
2202		2492
2203	#ifndef EIO_NO_WRAPPERS	2493	#ifndef EIO_NO_WRAPPERS
		2494
		2495	eio_req eio_wd_open (const char path, int pri, eio_cb cb, void *data)
		2496	{
		2497	REQ (EIO_WD_OPEN); PATH; SEND;
		2498	}
		2499
		2500	eio_req eio_wd_close (eio_wd wd, int pri, eio_cb cb, void data)
		2501	{
		2502	REQ (EIO_WD_CLOSE); req->wd = wd; SEND;
		2503	}
2204		2504
2205	eio_req eio_nop (int pri, eio_cb cb, void data)	2505	eio_req eio_nop (int pri, eio_cb cb, void data)
2206	{	2506	{
2207	REQ (EIO_NOP); SEND;	2507	REQ (EIO_NOP); SEND;
2208	}	2508	}

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Comparing libeio/eio.c (file contents): Revision 1.99 by root, Tue Jul 26 11:07:08 2011 UTC vs. Revision 1.116 by root, Tue Mar 27 19:27:35 2012 UTC

Diff Legend

Comparing libeio/eio.c (file contents):
Revision 1.99 by root, Tue Jul 26 11:07:08 2011 UTC vs.
Revision 1.116 by root, Tue Mar 27 19:27:35 2012 UTC