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Comparing libeio/eio.c (file contents):
Revision 1.86 by root, Thu Jul 14 18:30:10 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>
…		…
58	#include <sys/stat.h>	58	#include <sys/stat.h>
59	#include <limits.h>	59	#include <limits.h>
60	#include <fcntl.h>	60	#include <fcntl.h>
61	#include <assert.h>	61	#include <assert.h>
62		62
63	#include <sys/statvfs.h>
64	/* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */	63	/* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */
65	/* intptr_t only comes from stdint.h, says idiot openbsd coder */	64	/* intptr_t only comes from stdint.h, says idiot openbsd coder */
66	#if HAVE_STDINT_H	65	#if HAVE_STDINT_H
67	# include <stdint.h>	66	# include <stdint.h>
68	#endif	67	#endif
69		68
70	#ifndef ECANCELED	69	#ifndef ECANCELED
71	# define ECANCELED EDOM	70	# define ECANCELED EDOM
72	#endif	71	#endif
		72	#ifndef ELOOP
		73	# define ELOOP EDOM
		74	#endif
		75
		76	#if !defined(ENOTSOCK) && defined(WSAENOTSOCK)
		77	# define ENOTSOCK WSAENOTSOCK
		78	#endif
73		79
74	static void eio_destroy (eio_req *req);	80	static void eio_destroy (eio_req *req);
75		81
76	#ifndef EIO_FINISH	82	#ifndef EIO_FINISH
77	# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0	83	# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
…		…
96		102
97	#define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1)	103	#define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1)
98		104
99	#ifdef _WIN32	105	#ifdef _WIN32
100		106
		107	#undef PAGESIZE
101	#define PAGESIZE 4096 /* GetSystemInfo? */	108	#define PAGESIZE 4096 /* GetSystemInfo? */
102		109
		110	/* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */
		111
		112	#ifdef EIO_STRUCT_STATI64
		113	/* look at perl's non-sloppy stat */
103	#define stat(path,buf) _stati64 (path,buf)	114	#define stat(path,buf) _stati64 (path,buf)
		115	#define fstat(fd,buf) _fstati64 (fd,buf)
		116	#endif
104	#define lstat(path,buf) stat (path,buf)	117	#define lstat(path,buf) stat (path,buf)
105	#define fstat(fd,buf) _fstati64 (path,buf)
106	#define fsync(fd) (FlushFileBuffers (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))
107	#define mkdir(path,mode) _mkdir (path)	119	#define mkdir(path,mode) _mkdir (path)
108	#define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1))	120	#define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1))
109		121
		122	#define chmod(path,mode) _chmod (path, mode)
		123	#define dup(fd) _dup (fd)
		124	#define dup2(fd1,fd2) _dup2 (fd1, fd2)
		125
		126	#define fchmod(fd,mode) EIO_ENOSYS ()
110	#define chown(path,uid,gid) EIO_ENOSYS ()	127	#define chown(path,uid,gid) EIO_ENOSYS ()
111	#define fchown(fd,uid,gid) EIO_ENOSYS ()	128	#define fchown(fd,uid,gid) EIO_ENOSYS ()
112	#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */	129	#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */
113	#define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */	130	#define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */
114	#define mknod(path,mode,dev) EIO_ENOSYS ()	131	#define mknod(path,mode,dev) EIO_ENOSYS ()
115	#define sync() EIO_ENOSYS ()	132	#define sync() EIO_ENOSYS ()
		133	#define readlink(path,buf,s) EIO_ENOSYS ()
		134	#define statvfs(path,buf) EIO_ENOSYS ()
		135	#define fstatvfs(fd,buf) EIO_ENOSYS ()
		136
		137	/* rename() uses MoveFile, which fails to overwrite */
		138	#define rename(old,neu) eio__rename (old, neu)
		139
		140	static int
		141	eio__rename (const char *old, const char *neu)
		142	{
		143	if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING))
		144	return 0;
		145
		146	/* should steal _dosmaperr */
		147	switch (GetLastError ())
		148	{
		149	case ERROR_FILE_NOT_FOUND:
		150	case ERROR_PATH_NOT_FOUND:
		151	case ERROR_INVALID_DRIVE:
		152	case ERROR_NO_MORE_FILES:
		153	case ERROR_BAD_NETPATH:
		154	case ERROR_BAD_NET_NAME:
		155	case ERROR_BAD_PATHNAME:
		156	case ERROR_FILENAME_EXCED_RANGE:
		157	errno = ENOENT;
		158	break;
		159
		160	default:
		161	errno = EACCES;
		162	break;
		163	}
		164
		165	return -1;
		166	}
116		167
117	/* we could even stat and see if it exists */	168	/* we could even stat and see if it exists */
118	static int	169	static int
119	symlink (const char *old, const char *neu)	170	symlink (const char *old, const char *neu)
120	{	171	{
		172	#if WINVER >= 0x0600
121	if (CreateSymbolicLink (neu, old, 1))	173	if (CreateSymbolicLink (neu, old, 1))
122	return 0;	174	return 0;
123		175
124	if (CreateSymbolicLink (neu, old, 0))	176	if (CreateSymbolicLink (neu, old, 0))
125	return 0;	177	return 0;
		178	#endif
126		179
127	return EIO_ERRNO (ENOENT, -1);	180	return EIO_ERRNO (ENOENT, -1);
128	}	181	}
		182
		183	/* POSIX API only */
		184	#define CreateHardLink(neu,old,flags) 0
		185	#define CreateSymbolicLink(neu,old,flags) 0
		186
		187	struct statvfs
		188	{
		189	int dummy;
		190	};
		191
		192	#define DT_DIR EIO_DT_DIR
		193	#define DT_REG EIO_DT_REG
		194	#define D_NAME(entp) entp.cFileName
		195	#define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG)
129		196
130	#else	197	#else
131		198
132	#include <sys/time.h>	199	#include <sys/time.h>
133	#include <sys/select.h>	200	#include <sys/select.h>
134	#include <sys/statvfs.h>	201	#include <sys/statvfs.h>
135	#include <unistd.h>	202	#include <unistd.h>
136	#include <utime.h>
137	#include <signal.h>	203	#include <signal.h>
138	#include <dirent.h>	204	#include <dirent.h>
139		205
140	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	206	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
141	#include <sys/mman.h>	207	#include <sys/mman.h>
142	#endif	208	#endif
		209
		210	#define D_NAME(entp) entp->d_name
143		211
144	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */	212	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
145	#if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__	213	#if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
146	#define _DIRENT_HAVE_D_TYPE /* sigh */	214	#define _DIRENT_HAVE_D_TYPE /* sigh */
147	#define D_INO(de) (de)->d_fileno	215	#define D_INO(de) (de)->d_fileno
…		…
161		229
162	#ifndef EIO_STRUCT_DIRENT	230	#ifndef EIO_STRUCT_DIRENT
163	#define EIO_STRUCT_DIRENT struct dirent	231	#define EIO_STRUCT_DIRENT struct dirent
164	#endif	232	#endif
165		233
		234	#endif
		235
		236	#if HAVE_UTIMES
		237	# include <utime.h>
		238	#endif
		239
		240	#if HAVE_SYS_SYSCALL_H
		241	# include <sys/syscall.h>
		242	#endif
		243
		244	#if HAVE_SYS_PRCTL_H
		245	# include <sys/prctl.h>
166	#endif	246	#endif
167		247
168	#if HAVE_SENDFILE	248	#if HAVE_SENDFILE
169	# if __linux	249	# if __linux
170	# include <sys/sendfile.h>	250	# include <sys/sendfile.h>
…		…
185	#endif	265	#endif
186	#ifndef D_INO	266	#ifndef D_INO
187	# define D_INO(de) 0	267	# define D_INO(de) 0
188	#endif	268	#endif
189	#ifndef D_NAMLEN	269	#ifndef D_NAMLEN
190	# define D_NAMLEN(de) strlen ((de)->d_name)	270	# define D_NAMLEN(entp) strlen (D_NAME (entp))
191	#endif	271	#endif
192		272
193	/* used for struct dirent, AIX doesn't provide it */	273	/* used for struct dirent, AIX doesn't provide it */
194	#ifndef NAME_MAX	274	#ifndef NAME_MAX
195	# define NAME_MAX 4096	275	# define NAME_MAX 4096
…		…
202		282
203	/* buffer size for various temporary buffers */	283	/* buffer size for various temporary buffers */
204	#define EIO_BUFSIZE 65536	284	#define EIO_BUFSIZE 65536
205		285
206	#define dBUF \	286	#define dBUF \
207	char *eio_buf; \
208	ETP_WORKER_LOCK (self); \
209	self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \	287	char *eio_buf = malloc (EIO_BUFSIZE); \
210	ETP_WORKER_UNLOCK (self); \
211	errno = ENOMEM; \	288	errno = ENOMEM; \
212	if (!eio_buf) \	289	if (!eio_buf) \
213	return -1;	290	return -1
		291
		292	#define FUBd \
		293	free (eio_buf)
214		294
215	#define EIO_TICKS ((1000000 + 1023) >> 10)	295	#define EIO_TICKS ((1000000 + 1023) >> 10)
		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	/*****************************************************************************/
216		340
217	#define ETP_PRI_MIN EIO_PRI_MIN	341	#define ETP_PRI_MIN EIO_PRI_MIN
218	#define ETP_PRI_MAX EIO_PRI_MAX	342	#define ETP_PRI_MAX EIO_PRI_MAX
219		343
220	struct etp_worker;	344	struct etp_worker;
…		…
224	static int eio_finish (eio_req *req);	348	static int eio_finish (eio_req *req);
225	#define ETP_FINISH(req) eio_finish (req)	349	#define ETP_FINISH(req) eio_finish (req)
226	static void eio_execute (struct etp_worker *self, eio_req *req);	350	static void eio_execute (struct etp_worker *self, eio_req *req);
227	#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)	351	#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)
228		352
229	#define ETP_WORKER_CLEAR(req) \
230	if (wrk->dbuf) \
231	{ \
232	free (wrk->dbuf); \
233	wrk->dbuf = 0; \
234	} \
235	\
236	if (wrk->dirp) \
237	{ \
238	closedir (wrk->dirp); \
239	wrk->dirp = 0; \
240	}
241
242	#define ETP_WORKER_COMMON \
243	void *dbuf; \
244	DIR *dirp;
245
246	/*****************************************************************************/	353	/*****************************************************************************/
247		354
248	#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)	355	#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)
249		356
250	/* calculate time difference in ~1/EIO_TICKS of a second */	357	/* calculate time difference in ~1/EIO_TICKS of a second */
…		…
261	static void (*done_poll_cb) (void);	368	static void (*done_poll_cb) (void);
262		369
263	static unsigned int max_poll_time; /* reslock */	370	static unsigned int max_poll_time; /* reslock */
264	static unsigned int max_poll_reqs; /* reslock */	371	static unsigned int max_poll_reqs; /* reslock */
265		372
266	static volatile unsigned int nreqs; /* reqlock */	373	static unsigned int nreqs; /* reqlock */
267	static volatile unsigned int nready; /* reqlock */	374	static unsigned int nready; /* reqlock */
268	static volatile unsigned int npending; /* reqlock */	375	static unsigned int npending; /* reqlock */
269	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 */
270	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 */
271		378
272	static xmutex_t wrklock;	379	static xmutex_t wrklock;
273	static xmutex_t reslock;	380	static xmutex_t reslock;
274	static xmutex_t reqlock;	381	static xmutex_t reqlock;
275	static xcond_t reqwait;	382	static xcond_t reqwait;
…		…
278	/*	385	/*
279	* make our pread/pwrite emulation safe against themselves, but not against	386	* make our pread/pwrite emulation safe against themselves, but not against
280	* normal read/write by using a mutex. slows down execution a lot,	387	* normal read/write by using a mutex. slows down execution a lot,
281	* but that's your problem, not mine.	388	* but that's your problem, not mine.
282	*/	389	*/
283	static xmutex_t preadwritelock = X_MUTEX_INIT;	390	static xmutex_t preadwritelock;
284	#endif	391	#endif
285		392
286	typedef struct etp_worker	393	typedef struct etp_worker
287	{	394	{
		395	struct tmpbuf tmpbuf;
		396
288	/* locked by wrklock */	397	/* locked by wrklock */
289	struct etp_worker *prev, *next;	398	struct etp_worker *prev, *next;
290		399
291	xthread_t tid;	400	xthread_t tid;
292		401
293	/* locked by reslock, reqlock or wrklock */	402	#ifdef ETP_WORKER_COMMON
294	ETP_REQ *req; /* currently processed request */
295
296	ETP_WORKER_COMMON	403	ETP_WORKER_COMMON
		404	#endif
297	} etp_worker;	405	} etp_worker;
298		406
299	static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */	407	static etp_worker wrk_first; /* NOT etp */
300		408
301	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)	409	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
302	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)	410	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
303		411
304	/* worker threads management */	412	/* worker threads management */
305		413
306	static void ecb_cold	414	static void
307	etp_worker_clear (etp_worker *wrk)	415	etp_worker_clear (etp_worker *wrk)
308	{	416	{
309	ETP_WORKER_CLEAR (wrk);
310	}	417	}
311		418
312	static void ecb_cold	419	static void ecb_cold
313	etp_worker_free (etp_worker *wrk)	420	etp_worker_free (etp_worker *wrk)
314	{	421	{
		422	free (wrk->tmpbuf.ptr);
		423
315	wrk->next->prev = wrk->prev;	424	wrk->next->prev = wrk->prev;
316	wrk->prev->next = wrk->next;	425	wrk->prev->next = wrk->next;
317		426
318	free (wrk);	427	free (wrk);
319	}	428	}
…		…
375	} etp_reqq;	484	} etp_reqq;
376		485
377	static etp_reqq req_queue;	486	static etp_reqq req_queue;
378	static etp_reqq res_queue;	487	static etp_reqq res_queue;
379		488
		489	static void ecb_noinline ecb_cold
		490	reqq_init (etp_reqq *q)
		491	{
		492	int pri;
		493
		494	for (pri = 0; pri < ETP_NUM_PRI; ++pri)
		495	q->qs[pri] = q->qe[pri] = 0;
		496
		497	q->size = 0;
		498	}
		499
380	static int ecb_noinline	500	static int ecb_noinline
381	reqq_push (etp_reqq *q, ETP_REQ *req)	501	reqq_push (etp_reqq *q, ETP_REQ *req)
382	{	502	{
383	int pri = req->pri;	503	int pri = req->pri;
384	req->next = 0;	504	req->next = 0;
…		…
418	}	538	}
419		539
420	abort ();	540	abort ();
421	}	541	}
422		542
423	static void ecb_cold	543	static int ecb_cold
424	etp_thread_init (void)	544	etp_init (void (*want_poll)(void), void (*done_poll)(void))
425	{	545	{
426	#if !HAVE_PREADWRITE
427	X_MUTEX_CREATE (preadwritelock);
428	#endif
429	X_MUTEX_CREATE (wrklock);	546	X_MUTEX_CREATE (wrklock);
430	X_MUTEX_CREATE (reslock);	547	X_MUTEX_CREATE (reslock);
431	X_MUTEX_CREATE (reqlock);	548	X_MUTEX_CREATE (reqlock);
432	X_COND_CREATE (reqwait);	549	X_COND_CREATE (reqwait);
433	}
434		550
435	static void ecb_cold	551	reqq_init (&req_queue);
436	etp_atfork_prepare (void)	552	reqq_init (&res_queue);
437	{
438	}
439		553
440	static void ecb_cold	554	wrk_first.next =
441	etp_atfork_parent (void)	555	wrk_first.prev = &wrk_first;
442	{
443	}
444
445	static void ecb_cold
446	etp_atfork_child (void)
447	{
448	ETP_REQ *prv;
449
450	while ((prv = reqq_shift (&req_queue)))
451	ETP_DESTROY (prv);
452
453	while ((prv = reqq_shift (&res_queue)))
454	ETP_DESTROY (prv);
455
456	while (wrk_first.next != &wrk_first)
457	{
458	etp_worker *wrk = wrk_first.next;
459
460	if (wrk->req)
461	ETP_DESTROY (wrk->req);
462
463	etp_worker_clear (wrk);
464	etp_worker_free (wrk);
465	}
466		556
467	started = 0;	557	started = 0;
468	idle = 0;	558	idle = 0;
469	nreqs = 0;	559	nreqs = 0;
470	nready = 0;	560	nready = 0;
471	npending = 0;	561	npending = 0;
472
473	etp_thread_init ();
474	}
475
476	static void ecb_cold
477	etp_once_init (void)
478	{
479	etp_thread_init ();
480	X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child);
481	}
482
483	static int ecb_cold
484	etp_init (void (*want_poll)(void), void (*done_poll)(void))
485	{
486	static pthread_once_t doinit = PTHREAD_ONCE_INIT;
487
488	pthread_once (&doinit, etp_once_init);
489		562
490	want_poll_cb = want_poll;	563	want_poll_cb = want_poll;
491	done_poll_cb = done_poll;	564	done_poll_cb = done_poll;
492		565
493	return 0;	566	return 0;
…		…
533	}	606	}
534		607
535	static void ecb_cold	608	static void ecb_cold
536	etp_end_thread (void)	609	etp_end_thread (void)
537	{	610	{
538	eio_req *req = calloc (1, sizeof (eio_req));	611	eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */
539		612
540	req->type = -1;	613	req->type = -1;
541	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;	614	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
542		615
543	X_LOCK (reqlock);	616	X_LOCK (reqlock);
…		…
876	# undef pread	949	# undef pread
877	# undef pwrite	950	# undef pwrite
878	# define pread eio__pread	951	# define pread eio__pread
879	# define pwrite eio__pwrite	952	# define pwrite eio__pwrite
880		953
881	static ssize_t	954	static eio_ssize_t
882	eio__pread (int fd, void *buf, size_t count, off_t offset)	955	eio__pread (int fd, void *buf, size_t count, off_t offset)
883	{	956	{
884	ssize_t res;	957	eio_ssize_t res;
885	off_t ooffset;	958	off_t ooffset;
886		959
887	X_LOCK (preadwritelock);	960	X_LOCK (preadwritelock);
888	ooffset = lseek (fd, 0, SEEK_CUR);	961	ooffset = lseek (fd, 0, SEEK_CUR);
889	lseek (fd, offset, SEEK_SET);	962	lseek (fd, offset, SEEK_SET);
…		…
892	X_UNLOCK (preadwritelock);	965	X_UNLOCK (preadwritelock);
893		966
894	return res;	967	return res;
895	}	968	}
896		969
897	static ssize_t	970	static eio_ssize_t
898	eio__pwrite (int fd, void *buf, size_t count, off_t offset)	971	eio__pwrite (int fd, void *buf, size_t count, off_t offset)
899	{	972	{
900	ssize_t res;	973	eio_ssize_t res;
901	off_t ooffset;	974	off_t ooffset;
902		975
903	X_LOCK (preadwritelock);	976	X_LOCK (preadwritelock);
904	ooffset = lseek (fd, 0, SEEK_CUR);	977	ooffset = lseek (fd, 0, SEEK_CUR);
905	lseek (fd, offset, SEEK_SET);	978	lseek (fd, offset, SEEK_SET);
…		…
950		1023
951	#if !HAVE_FDATASYNC	1024	#if !HAVE_FDATASYNC
952	# undef fdatasync	1025	# undef fdatasync
953	# define fdatasync(fd) fsync (fd)	1026	# define fdatasync(fd) fsync (fd)
954	#endif	1027	#endif
		1028
		1029	static int
		1030	eio__syncfs (int fd)
		1031	{
		1032	int res;
		1033
		1034	#if HAVE_SYS_SYNCFS
		1035	res = (int)syscall (__NR_syncfs, (int)(fd));
		1036	#else
		1037	res = -1;
		1038	errno = ENOSYS;
		1039	#endif
		1040
		1041	if (res < 0 && errno == ENOSYS && fd >= 0)
		1042	sync ();
		1043
		1044	return res;
		1045	}
955		1046
956	/* sync_file_range always needs emulation */	1047	/* sync_file_range always needs emulation */
957	static int	1048	static int
958	eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)	1049	eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)
959	{	1050	{
…		…
994		1085
995	#if !HAVE_READAHEAD	1086	#if !HAVE_READAHEAD
996	# undef readahead	1087	# undef readahead
997	# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)	1088	# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
998		1089
999	static ssize_t	1090	static eio_ssize_t
1000	eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)	1091	eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)
1001	{	1092	{
1002	size_t todo = count;	1093	size_t todo = count;
1003	dBUF;	1094	dBUF;
1004		1095
…		…
1009	pread (fd, eio_buf, len, offset);	1100	pread (fd, eio_buf, len, offset);
1010	offset += len;	1101	offset += len;
1011	todo -= len;	1102	todo -= len;
1012	}	1103	}
1013		1104
1014	errno = 0;	1105	FUBd;
		1106
		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 */
1015	return count;	1109	return 0;
1016	}	1110	}
1017		1111
1018	#endif	1112	#endif
1019		1113
1020	/* sendfile always needs emulation */	1114	/* sendfile always needs emulation */
1021	static ssize_t	1115	static eio_ssize_t
1022	eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self)	1116	eio__sendfile (int ofd, int ifd, off_t offset, size_t count)
1023	{	1117	{
1024	ssize_t written = 0;	1118	eio_ssize_t written = 0;
1025	ssize_t res;	1119	eio_ssize_t res;
1026		1120
1027	if (!count)	1121	if (!count)
1028	return 0;	1122	return 0;
1029		1123
1030	for (;;)	1124	for (;;)
…		…
1125	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK	1219	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1126	/* BSDs */	1220	/* BSDs */
1127	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */	1221	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */
1128	|| errno == ENOTSUP	1222	|| errno == ENOTSUP
1129	#endif	1223	#endif
		1224	#ifdef EOPNOTSUPP /* windows */
1130	|| errno == EOPNOTSUPP /* BSDs */	1225	|| errno == EOPNOTSUPP /* BSDs */
		1226	#endif
1131	#if __solaris	1227	#if __solaris
1132	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE	1228	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
1133	#endif	1229	#endif
1134	)	1230	)
1135	)	1231	)
…		…
1139		1235
1140	res = 0;	1236	res = 0;
1141		1237
1142	while (count)	1238	while (count)
1143	{	1239	{
1144	ssize_t cnt;	1240	eio_ssize_t cnt;
1145		1241
1146	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);	1242	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);
1147		1243
1148	if (cnt <= 0)	1244	if (cnt <= 0)
1149	{	1245	{
…		…
1161		1257
1162	offset += cnt;	1258	offset += cnt;
1163	res += cnt;	1259	res += cnt;
1164	count -= cnt;	1260	count -= cnt;
1165	}	1261	}
		1262
		1263	FUBd;
1166	}	1264	}
1167		1265
1168	return res;	1266	return res;
1169	}	1267	}
1170		1268
…		…
1197	/* round up length */	1295	/* round up length */
1198	*length = (*length + mask) & ~mask;	1296	*length = (*length + mask) & ~mask;
1199	}	1297	}
1200		1298
1201	#if !_POSIX_MEMLOCK	1299	#if !_POSIX_MEMLOCK
1202	# define eio__mlockall(a) eio_nosyscall()	1300	# define eio__mlockall(a) EIO_ENOSYS ()
1203	#else	1301	#else
1204		1302
1205	static int	1303	static int
1206	eio__mlockall (int flags)	1304	eio__mlockall (int flags)
1207	{	1305	{
…		…
1285	}	1383	}
1286		1384
1287	/*****************************************************************************/	1385	/*****************************************************************************/
1288	/* requests implemented outside eio_execute, because they are so large */	1386	/* requests implemented outside eio_execute, because they are so large */
1289		1387
		1388	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
1290	static void	1389	static int
1291	eio__realpath (eio_req *req, etp_worker *self)	1390	eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
1292	{	1391	{
1293	char *rel = req->ptr1;	1392	const char *rel = path;
1294	char *res;	1393	char *res;
1295	char *tmp1, *tmp2;	1394	char *tmp1, *tmp2;
1296	#if SYMLOOP_MAX > 32	1395	#if SYMLOOP_MAX > 32
1297	int symlinks = SYMLOOP_MAX;	1396	int symlinks = SYMLOOP_MAX;
1298	#else	1397	#else
1299	int symlinks = 32;	1398	int symlinks = 32;
1300	#endif	1399	#endif
1301		1400
1302	req->result = -1;
1303
1304	errno = EINVAL;	1401	errno = EINVAL;
1305	if (!rel)	1402	if (!rel)
1306	return;	1403	return -1;
1307		1404
1308	errno = ENOENT;	1405	errno = ENOENT;
1309	if (!*rel)	1406	if (!*rel)
1310	return;	1407	return -1;
1311		1408
1312	if (!req->ptr2)	1409	res = tmpbuf_get (tmpbuf, PATH_MAX * 3);
1313	{
1314	X_LOCK (wrklock);
1315	req->flags |= EIO_FLAG_PTR2_FREE;
1316	X_UNLOCK (wrklock);
1317	req->ptr2 = malloc (PATH_MAX * 3);
1318
1319	errno = ENOMEM;
1320	if (!req->ptr2)
1321	return;
1322	}
1323
1324	res = req->ptr2;
1325	tmp1 = res + PATH_MAX;	1410	tmp1 = res + PATH_MAX;
1326	tmp2 = tmp1 + PATH_MAX;	1411	tmp2 = tmp1 + PATH_MAX;
1327		1412
1328	#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 */
1329	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)	1414	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
…		…
1348	#endif	1433	#endif
1349	#endif	1434	#endif
1350		1435
1351	if (*rel != '/')	1436	if (*rel != '/')
1352	{	1437	{
		1438	int len;
		1439
		1440	errno = ENOENT;
		1441	if (wd == EIO_INVALID_WD)
		1442	return -1;
		1443
		1444	if (wd == EIO_CWD)
		1445	{
1353	if (!getcwd (res, PATH_MAX))	1446	if (!getcwd (res, PATH_MAX))
1354	return;	1447	return -1;
		1448
		1449	len = strlen (res);
		1450	}
		1451	else
		1452	memcpy (res, wd->str, len = wd->len);
1355		1453
1356	if (res [1]) /* only use if not / */	1454	if (res [1]) /* only use if not / */
1357	res += strlen (res);	1455	res += len;
1358	}	1456	}
1359		1457
1360	while (*rel)	1458	while (*rel)
1361	{	1459	{
1362	ssize_t len, linklen;	1460	eio_ssize_t len, linklen;
1363	char *beg = rel;	1461	const char *beg = rel;
1364		1462
1365	while (*rel && *rel != '/')	1463	while (*rel && *rel != '/')
1366	++rel;	1464	++rel;
1367		1465
1368	len = rel - beg;	1466	len = rel - beg;
…		…
1380		1478
1381	if (beg [1] == '.' && len == 2)	1479	if (beg [1] == '.' && len == 2)
1382	{	1480	{
1383	/* .. - back up one component, if possible */	1481	/* .. - back up one component, if possible */
1384		1482
1385	while (res != req->ptr2)	1483	while (res != tmpbuf->ptr)
1386	if (*--res == '/')	1484	if (*--res == '/')
1387	break;	1485	break;
1388		1486
1389	continue;	1487	continue;
1390	}	1488	}
1391	}	1489	}
1392		1490
1393	errno = ENAMETOOLONG;	1491	errno = ENAMETOOLONG;
1394	if (res + 1 + len + 1 >= tmp1)	1492	if (res + 1 + len + 1 >= tmp1)
1395	return;	1493	return -1;
1396		1494
1397	/* copy one component */	1495	/* copy one component */
1398	*res = '/';	1496	*res = '/';
1399	memcpy (res + 1, beg, len);	1497	memcpy (res + 1, beg, len);
1400		1498
1401	/* zero-terminate, for readlink */	1499	/* zero-terminate, for readlink */
1402	res [len + 1] = 0;	1500	res [len + 1] = 0;
1403		1501
1404	/* now check if it's a symlink */	1502	/* now check if it's a symlink */
1405	linklen = readlink (req->ptr2, tmp1, PATH_MAX);	1503	linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX);
1406		1504
1407	if (linklen < 0)	1505	if (linklen < 0)
1408	{	1506	{
1409	if (errno != EINVAL)	1507	if (errno != EINVAL)
1410	return;	1508	return -1;
1411		1509
1412	/* it's a normal directory. hopefully */	1510	/* it's a normal directory. hopefully */
1413	res += len + 1;	1511	res += len + 1;
1414	}	1512	}
1415	else	1513	else
…		…
1417	/* yay, it was a symlink - build new path in tmp2 */	1515	/* yay, it was a symlink - build new path in tmp2 */
1418	int rellen = strlen (rel);	1516	int rellen = strlen (rel);
1419		1517
1420	errno = ENAMETOOLONG;	1518	errno = ENAMETOOLONG;
1421	if (linklen + 1 + rellen >= PATH_MAX)	1519	if (linklen + 1 + rellen >= PATH_MAX)
1422	return;	1520	return -1;
1423		1521
1424	errno = ELOOP;	1522	errno = ELOOP;
1425	if (!--symlinks)	1523	if (!--symlinks)
1426	return;	1524	return -1;
1427		1525
1428	if (*tmp1 == '/')	1526	if (*tmp1 == '/')
1429	res = req->ptr2; /* symlink resolves to an absolute path */	1527	res = tmpbuf->ptr; /* symlink resolves to an absolute path */
1430		1528
1431	/* 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 */
1432	memmove (tmp2 + linklen + 1, rel, rellen + 1);	1530	memmove (tmp2 + linklen + 1, rel, rellen + 1);
1433	tmp2 [linklen] = '/';	1531	tmp2 [linklen] = '/';
1434	memcpy (tmp2, tmp1, linklen);	1532	memcpy (tmp2, tmp1, linklen);
…		…
1436	rel = tmp2;	1534	rel = tmp2;
1437	}	1535	}
1438	}	1536	}
1439		1537
1440	/* special case for the lone root path */	1538	/* special case for the lone root path */
1441	if (res == req->ptr2)	1539	if (res == tmpbuf->ptr)
1442	*res++ = '/';	1540	*res++ = '/';
1443		1541
1444	req->result = res - (char *)req->ptr2;	1542	return res - (char *)tmpbuf->ptr;
1445
1446	done:
1447	req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */
1448	}	1543	}
1449		1544
1450	static signed char	1545	static signed char
1451	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)	1546	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)
1452	{	1547	{
…		…
1460		1555
1461	#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */	1556	#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */
1462	#define EIO_SORT_FAST 60 /* when to only use insertion sort */	1557	#define EIO_SORT_FAST 60 /* when to only use insertion sort */
1463		1558
1464	static void	1559	static void
1465	eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)	1560	eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1466	{	1561	{
1467	unsigned char bits [9 + sizeof (ino_t) * 8];	1562	unsigned char bits [9 + sizeof (eio_ino_t) * 8];
1468	unsigned char *bit = bits;	1563	unsigned char *bit = bits;
1469		1564
1470	assert (CHAR_BIT == 8);	1565	assert (CHAR_BIT == 8);
1471	assert (sizeof (eio_dirent) * 8 < 256);	1566	assert (sizeof (eio_dirent) * 8 < 256);
1472	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */	1567	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */
…		…
1474		1569
1475	if (size <= EIO_SORT_FAST)	1570	if (size <= EIO_SORT_FAST)
1476	return;	1571	return;
1477		1572
1478	/* first prepare an array of bits to test in our radix sort */	1573	/* first prepare an array of bits to test in our radix sort */
1479	/* try to take endianness into account, as well as differences in ino_t sizes */	1574	/* try to take endianness into account, as well as differences in eio_ino_t sizes */
1480	/* inode_bits must contain all inodes ORed together */	1575	/* inode_bits must contain all inodes ORed together */
1481	/* which is used to skip bits that are 0 everywhere, which is very common */	1576	/* which is used to skip bits that are 0 everywhere, which is very common */
1482	{	1577	{
1483	ino_t endianness;	1578	eio_ino_t endianness;
1484	int i, j;	1579	int i, j;
1485		1580
1486	/* we store the byte offset of byte n into byte n of "endianness" */	1581	/* we store the byte offset of byte n into byte n of "endianness" */
1487	for (i = 0; i < sizeof (ino_t); ++i)	1582	for (i = 0; i < sizeof (eio_ino_t); ++i)
1488	((unsigned char *)&endianness)[i] = i;	1583	((unsigned char *)&endianness)[i] = i;
1489		1584
1490	*bit++ = 0;	1585	*bit++ = 0;
1491		1586
1492	for (i = 0; i < sizeof (ino_t); ++i)	1587	for (i = 0; i < sizeof (eio_ino_t); ++i)
1493	{	1588	{
1494	/* shifting off the byte offsets out of "endianness" */	1589	/* shifting off the byte offsets out of "endianness" */
1495	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;	1590	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;
1496	endianness >>= 8;	1591	endianness >>= 8;
1497		1592
1498	for (j = 0; j < 8; ++j)	1593	for (j = 0; j < 8; ++j)
1499	if (inode_bits & (((ino_t)1) << (i * 8 + j)))	1594	if (inode_bits & (((eio_ino_t)1) << (i * 8 + j)))
1500	*bit++ = offs + j;	1595	*bit++ = offs + j;
1501	}	1596	}
1502		1597
1503	for (j = 0; j < 8; ++j)	1598	for (j = 0; j < 8; ++j)
1504	if (score_bits & (1 << j))	1599	if (score_bits & (1 << j))
1505	*bit++ = offsetof (eio_dirent, score) * 8 + j;	1600	*bit++ = offsetof (eio_dirent, score) * 8 + j;
1506	}	1601	}
1507		1602
1508	/* now actually do the sorting (a variant of MSD radix sort) */	1603	/* now actually do the sorting (a variant of MSD radix sort) */
1509	{	1604	{
1510	eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base;	1605	eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base;
1511	eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end;	1606	eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end;
1512	unsigned char *bit_stk [9 + sizeof (ino_t) * 8];	1607	unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8];
1513	int stk_idx = 0;	1608	int stk_idx = 0;
1514		1609
1515	base_stk [stk_idx] = dents;	1610	base_stk [stk_idx] = dents;
1516	end_stk [stk_idx] = dents + size;	1611	end_stk [stk_idx] = dents + size;
1517	bit_stk [stk_idx] = bit - 1;	1612	bit_stk [stk_idx] = bit - 1;
…		…
1596	}	1691	}
1597	}	1692	}
1598	}	1693	}
1599		1694
1600	static void	1695	static void
1601	eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)	1696	eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1602	{	1697	{
1603	if (size <= 1)	1698	if (size <= 1)
1604	return; /* our insertion sort relies on size > 0 */	1699	return; /* our insertion sort relies on size > 0 */
1605		1700
1606	/* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */	1701	/* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */
…		…
1614		1709
1615	/* read a full directory */	1710	/* read a full directory */
1616	static void	1711	static void
1617	eio__scandir (eio_req *req, etp_worker *self)	1712	eio__scandir (eio_req *req, etp_worker *self)
1618	{	1713	{
1619	DIR *dirp;
1620	EIO_STRUCT_DIRENT *entp;
1621	char *name, *names;	1714	char *name, *names;
1622	int namesalloc = 4096;	1715	int namesalloc = 4096 - sizeof (void *) * 4;
1623	int namesoffs = 0;	1716	int namesoffs = 0;
1624	int flags = req->int1;	1717	int flags = req->int1;
1625	eio_dirent *dents = 0;	1718	eio_dirent *dents = 0;
1626	int dentalloc = 128;	1719	int dentalloc = 128;
1627	int dentoffs = 0;	1720	int dentoffs = 0;
1628	ino_t inode_bits = 0;	1721	eio_ino_t inode_bits = 0;
		1722	#ifdef _WIN32
		1723	HANDLE dirp;
		1724	WIN32_FIND_DATA entp;
		1725	#else
		1726	DIR *dirp;
		1727	EIO_STRUCT_DIRENT *entp;
		1728	#endif
1629		1729
1630	req->result = -1;	1730	req->result = -1;
1631		1731
1632	if (!(flags & EIO_READDIR_DENTS))	1732	if (!(flags & EIO_READDIR_DENTS))
1633	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);	1733	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);
1634		1734
1635	X_LOCK (wrklock);	1735	#ifdef _WIN32
1636	/* the corresponding closedir is in ETP_WORKER_CLEAR */	1736	{
		1737	int len = strlen ((const char *)req->ptr1);
		1738	char *path = malloc (MAX_PATH);
		1739	const char *fmt;
		1740	const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
		1741
		1742	if (!len)
		1743	fmt = "./*";
		1744	else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\')
		1745	fmt = "%s*";
		1746	else
		1747	fmt = "%s/*";
		1748
		1749	_snprintf (path, MAX_PATH, fmt, reqpath);
		1750	dirp = FindFirstFile (path, &entp);
		1751	free (path);
		1752
		1753	if (dirp == INVALID_HANDLE_VALUE)
		1754	{
		1755	/* should steal _dosmaperr */
		1756	switch (GetLastError ())
		1757	{
		1758	case ERROR_FILE_NOT_FOUND:
		1759	req->result = 0;
		1760	break;
		1761
		1762	case ERROR_INVALID_NAME:
		1763	case ERROR_PATH_NOT_FOUND:
		1764	case ERROR_NO_MORE_FILES:
		1765	errno = ENOENT;
		1766	break;
		1767
		1768	case ERROR_NOT_ENOUGH_MEMORY:
		1769	errno = ENOMEM;
		1770	break;
		1771
		1772	default:
		1773	errno = EINVAL;
		1774	break;
		1775	}
		1776
		1777	return;
		1778	}
		1779	}
		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
1637	self->dirp = 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;
		1802	#endif
1638		1803
1639	if (req->flags & EIO_FLAG_PTR1_FREE)	1804	if (req->flags & EIO_FLAG_PTR1_FREE)
1640	free (req->ptr1);	1805	free (req->ptr1);
1641		1806
1642	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;	1807	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;
1643	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;	1808	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
1644	req->ptr2 = names = malloc (namesalloc);	1809	req->ptr2 = names = malloc (namesalloc);
1645	X_UNLOCK (wrklock);
1646		1810
1647	if (dirp && names && (!flags || dents))	1811	if (!names || (flags && !dents))
		1812	return;
		1813
1648	for (;;)	1814	for (;;)
1649	{	1815	{
		1816	int done;
		1817
		1818	#ifdef _WIN32
		1819	done = !dirp;
		1820	#else
1650	errno = 0;	1821	errno = 0;
1651	entp = readdir (dirp);	1822	entp = readdir (dirp);
		1823	done = !entp;
		1824	#endif
1652		1825
1653	if (!entp)	1826	if (done)
1654	{	1827	{
		1828	#ifndef _WIN32
		1829	int old_errno = errno;
		1830	closedir (dirp);
		1831	errno = old_errno;
		1832
1655	if (errno)	1833	if (errno)
1656	break;	1834	break;
		1835	#endif
1657		1836
1658	/* sort etc. */	1837	/* sort etc. */
1659	req->int1 = flags;	1838	req->int1 = flags;
1660	req->result = dentoffs;	1839	req->result = dentoffs;
1661		1840
1662	if (flags & EIO_READDIR_STAT_ORDER)	1841	if (flags & EIO_READDIR_STAT_ORDER)
1663	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);
1664	else if (flags & EIO_READDIR_DIRS_FIRST)	1843	else if (flags & EIO_READDIR_DIRS_FIRST)
1665	if (flags & EIO_READDIR_FOUND_UNKNOWN)	1844	if (flags & EIO_READDIR_FOUND_UNKNOWN)
1666	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 */
1667	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))
1668	{	1897	{
1669	/* 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
1670	eio_dirent *oth = dents + dentoffs;	1905	ent = dents + dentoffs;
1671	eio_dirent *dir = dents;
1672		1906
1673	/* 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 */
1674	/* by walking from both sides and swapping if necessary */	1908	ent->namelen = len - 1;
1675	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)
1676	{	1969	{
1677	if (dir->type == EIO_DT_DIR)	1970	if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1678	++dir;	1971	ent->score = 1;
1679	else if ((--oth)->type == EIO_DT_DIR)	1972	else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1680	{	1973	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1681	eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
1682
1683	++dir;
1684	}
1685	}	1974	}
1686		1975	else if (ent->type == EIO_DT_DIR)
1687	/* now sort the dirs only (dirs all have the same score) */	1976	ent->score = 0;
1688	eio_dent_sort (dents, dir - dents, 0, inode_bits);
1689	}	1977	}
1690
1691	break;
1692	}
1693
1694	/* now add the entry to our list(s) */
1695	name = entp->d_name;
1696
1697	/* skip . and .. entries */
1698	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1699	{
1700	int len = D_NAMLEN (entp) + 1;
1701
1702	while (ecb_expect_false (namesoffs + len > namesalloc))
1703	{
1704	namesalloc *= 2;
1705	X_LOCK (wrklock);
1706	req->ptr2 = names = realloc (names, namesalloc);
1707	X_UNLOCK (wrklock);
1708
1709	if (!names)
1710	break;
1711	}	1978	}
1712		1979
1713	memcpy (names + namesoffs, name, len);
1714
1715	if (dents)
1716	{
1717	struct eio_dirent *ent;
1718
1719	if (ecb_expect_false (dentoffs == dentalloc))
1720	{
1721	dentalloc *= 2;
1722	X_LOCK (wrklock);
1723	req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
1724	X_UNLOCK (wrklock);
1725
1726	if (!dents)
1727	break;
1728	}
1729
1730	ent = dents + dentoffs;
1731
1732	ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1733	ent->namelen = len - 1;
1734	ent->inode = D_INO (entp);
1735
1736	inode_bits |= ent->inode;
1737
1738	switch (D_TYPE (entp))
1739	{
1740	default:
1741	ent->type = EIO_DT_UNKNOWN;
1742	flags |= EIO_READDIR_FOUND_UNKNOWN;
1743	break;
1744
1745	#ifdef DT_FIFO
1746	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1747	#endif
1748	#ifdef DT_CHR
1749	case DT_CHR: ent->type = EIO_DT_CHR; break;
1750	#endif
1751	#ifdef DT_MPC
1752	case DT_MPC: ent->type = EIO_DT_MPC; break;
1753	#endif
1754	#ifdef DT_DIR
1755	case DT_DIR: ent->type = EIO_DT_DIR; break;
1756	#endif
1757	#ifdef DT_NAM
1758	case DT_NAM: ent->type = EIO_DT_NAM; break;
1759	#endif
1760	#ifdef DT_BLK
1761	case DT_BLK: ent->type = EIO_DT_BLK; break;
1762	#endif
1763	#ifdef DT_MPB
1764	case DT_MPB: ent->type = EIO_DT_MPB; break;
1765	#endif
1766	#ifdef DT_REG
1767	case DT_REG: ent->type = EIO_DT_REG; break;
1768	#endif
1769	#ifdef DT_NWK
1770	case DT_NWK: ent->type = EIO_DT_NWK; break;
1771	#endif
1772	#ifdef DT_CMP
1773	case DT_CMP: ent->type = EIO_DT_CMP; break;
1774	#endif
1775	#ifdef DT_LNK
1776	case DT_LNK: ent->type = EIO_DT_LNK; break;
1777	#endif
1778	#ifdef DT_SOCK
1779	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
1780	#endif
1781	#ifdef DT_DOOR
1782	case DT_DOOR: ent->type = EIO_DT_DOOR; break;
1783	#endif
1784	#ifdef DT_WHT
1785	case DT_WHT: ent->type = EIO_DT_WHT; break;
1786	#endif
1787	}
1788
1789	ent->score = 7;
1790
1791	if (flags & EIO_READDIR_DIRS_FIRST)
1792	{
1793	if (ent->type == EIO_DT_UNKNOWN)
1794	{
1795	if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1796	ent->score = 1;
1797	else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */
1798	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1799	}
1800	else if (ent->type == EIO_DT_DIR)
1801	ent->score = 0;
1802	}
1803	}
1804
1805	namesoffs += len;	1980	namesoffs += len;
1806	++dentoffs;	1981	++dentoffs;
1807	}	1982	}
1808		1983
1809	if (EIO_CANCELLED (req))	1984	if (EIO_CANCELLED (req))
1810	{	1985	{
1811	errno = ECANCELED;	1986	errno = ECANCELED;
1812	break;	1987	break;
1813	}	1988	}
		1989
		1990	#ifdef _WIN32
		1991	if (!FindNextFile (dirp, &entp))
		1992	{
		1993	FindClose (dirp);
		1994	dirp = 0;
1814	}	1995	}
		1996	#endif
		1997	}
1815	}	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
1816		2121
1817	/*****************************************************************************/	2122	/*****************************************************************************/
1818		2123
1819	#define ALLOC(len) \	2124	#define ALLOC(len) \
1820	if (!req->ptr2) \	2125	if (!req->ptr2) \
…		…
1829	req->result = -1; \	2134	req->result = -1; \
1830	break; \	2135	break; \
1831	} \	2136	} \
1832	}	2137	}
1833		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
1834	X_THREAD_PROC (etp_proc)	2156	X_THREAD_PROC (etp_proc)
1835	{	2157	{
1836	ETP_REQ *req;	2158	ETP_REQ *req;
1837	struct timespec ts;	2159	struct timespec ts;
1838	etp_worker *self = (etp_worker *)thr_arg;	2160	etp_worker *self = (etp_worker *)thr_arg;
1839	int timeout;	2161
		2162	etp_proc_init ();
1840		2163
1841	/* try to distribute timeouts somewhat evenly */	2164	/* try to distribute timeouts somewhat evenly */
1842	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);	2165	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1843		2166
1844	for (;;)	2167	for (;;)
…		…
1847		2170
1848	X_LOCK (reqlock);	2171	X_LOCK (reqlock);
1849		2172
1850	for (;;)	2173	for (;;)
1851	{	2174	{
1852	self->req = req = reqq_shift (&req_queue);	2175	req = reqq_shift (&req_queue);
1853		2176
1854	if (req)	2177	if (req)
1855	break;	2178	break;
1856		2179
1857	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 */
…		…
1895	++npending;	2218	++npending;
1896		2219
1897	if (!reqq_push (&res_queue, req) && want_poll_cb)	2220	if (!reqq_push (&res_queue, req) && want_poll_cb)
1898	want_poll_cb ();	2221	want_poll_cb ();
1899		2222
1900	self->req = 0;
1901	etp_worker_clear (self);	2223	etp_worker_clear (self);
1902		2224
1903	X_UNLOCK (reslock);	2225	X_UNLOCK (reslock);
1904	}	2226	}
1905		2227
1906	quit:	2228	quit:
		2229	free (req);
		2230
1907	X_LOCK (wrklock);	2231	X_LOCK (wrklock);
1908	etp_worker_free (self);	2232	etp_worker_free (self);
1909	X_UNLOCK (wrklock);	2233	X_UNLOCK (wrklock);
1910		2234
1911	return 0;	2235	return 0;
…		…
1914	/*****************************************************************************/	2238	/*****************************************************************************/
1915		2239
1916	int ecb_cold	2240	int ecb_cold
1917	eio_init (void (*want_poll)(void), void (*done_poll)(void))	2241	eio_init (void (*want_poll)(void), void (*done_poll)(void))
1918	{	2242	{
		2243	#if !HAVE_PREADWRITE
		2244	X_MUTEX_CREATE (preadwritelock);
		2245	#endif
		2246
1919	return etp_init (want_poll, done_poll);	2247	return etp_init (want_poll, done_poll);
1920	}	2248	}
1921		2249
1922	ecb_inline void	2250	ecb_inline void
1923	eio_api_destroy (eio_req *req)	2251	eio_api_destroy (eio_req *req)
…		…
1950	}	2278	}
1951		2279
1952	static void	2280	static void
1953	eio_execute (etp_worker *self, eio_req *req)	2281	eio_execute (etp_worker *self, eio_req *req)
1954	{	2282	{
		2283	#if HAVE_AT
		2284	int dirfd;
		2285	#else
		2286	const char *path;
		2287	#endif
		2288
1955	if (ecb_expect_false (EIO_CANCELLED (req)))	2289	if (ecb_expect_false (EIO_CANCELLED (req)))
1956	{	2290	{
1957	req->result = -1;	2291	req->result = -1;
1958	req->errorno = ECANCELED;	2292	req->errorno = ECANCELED;
1959	return;	2293	return;
1960	}	2294	}
1961		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
1962	switch (req->type)	2312	switch (req->type)
1963	{	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
1964	case EIO_READ: ALLOC (req->size);	2320	case EIO_READ: ALLOC (req->size);
1965	req->result = req->offs >= 0	2321	req->result = req->offs >= 0
1966	? pread (req->int1, req->ptr2, req->size, req->offs)	2322	? pread (req->int1, req->ptr2, req->size, req->offs)
1967	: read (req->int1, req->ptr2, req->size); break;	2323	: read (req->int1, req->ptr2, req->size); break;
1968	case EIO_WRITE: req->result = req->offs >= 0	2324	case EIO_WRITE: req->result = req->offs >= 0
1969	? pwrite (req->int1, req->ptr2, req->size, req->offs)	2325	? pwrite (req->int1, req->ptr2, req->size, req->offs)
1970	: write (req->int1, req->ptr2, req->size); break;	2326	: write (req->int1, req->ptr2, req->size); break;
1971		2327
1972	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;
1973	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;	2329	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
		2330
		2331	#if HAVE_AT
1974		2332
1975	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2333	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1976	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;
1977	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));
1978	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
1979	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2433	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1980	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;	2434	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
1981		2435
1982	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1983	req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1984	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));	2436	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1985	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;	2437	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1986		2438
1987	case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1988	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;
1989	case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
1990	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;
1991	case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1992	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;	2441	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1993		2442
1994	case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break;
1995	case EIO_CLOSE: req->result = close (req->int1); break;	2443	case EIO_CLOSE: req->result = close (req->int1); break;
1996	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;	2444	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
1997	case EIO_UNLINK: req->result = unlink (req->ptr1); break;
1998	case EIO_RMDIR: req->result = rmdir (req->ptr1); break;
1999	case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
2000	case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
2001	case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
2002	case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
2003	case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
2004
2005	case EIO_REALPATH: eio__realpath (req, self); break;
2006
2007	case EIO_READLINK: ALLOC (PATH_MAX);
2008	req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break;
2009
2010	case EIO_SYNC: req->result = 0; sync (); break;	2445	case EIO_SYNC: req->result = 0; sync (); break;
2011	case EIO_FSYNC: req->result = fsync (req->int1); break;	2446	case EIO_FSYNC: req->result = fsync (req->int1); break;
2012	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;	2447	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
		2448	case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
		2449	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
2013	case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;	2450	case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
2014	case EIO_MTOUCH: req->result = eio__mtouch (req); break;	2451	case EIO_MTOUCH: req->result = eio__mtouch (req); break;
2015	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;	2452	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
2016	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;	2453	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
2017	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
2018	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;	2454	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
2019		2455
2020	case EIO_READDIR: eio__scandir (req, self); break;	2456	case EIO_READDIR: eio__scandir (req, self); break;
2021		2457
2022	case EIO_BUSY:	2458	case EIO_BUSY:
…		…
2032	req->result = select (0, 0, 0, 0, &tv);	2468	req->result = select (0, 0, 0, 0, &tv);
2033	}	2469	}
2034	#endif	2470	#endif
2035	break;	2471	break;
2036		2472
2037	case EIO_UTIME:
2038	case EIO_FUTIME:
2039	{
2040	struct timeval tv[2];
2041	struct timeval *times;
2042
2043	if (req->nv1 != -1. || req->nv2 != -1.)
2044	{
2045	tv[0].tv_sec = req->nv1;
2046	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
2047	tv[1].tv_sec = req->nv2;
2048	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
2049
2050	times = tv;
2051	}
2052	else
2053	times = 0;
2054
2055	req->result = req->type == EIO_FUTIME
2056	? futimes (req->int1, times)
2057	: utimes (req->ptr1, times);
2058	}
2059	break;
2060
2061	case EIO_GROUP:	2473	case EIO_GROUP:
2062	abort (); /* handled in eio_request */	2474	abort (); /* handled in eio_request */
2063		2475
2064	case EIO_NOP:	2476	case EIO_NOP:
2065	req->result = 0;	2477	req->result = 0;
…		…
2078	req->errorno = errno;	2490	req->errorno = errno;
2079	}	2491	}
2080		2492
2081	#ifndef EIO_NO_WRAPPERS	2493	#ifndef EIO_NO_WRAPPERS
2082		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	}
		2504
2083	eio_req *eio_nop (int pri, eio_cb cb, void *data)	2505	eio_req *eio_nop (int pri, eio_cb cb, void *data)
2084	{	2506	{
2085	REQ (EIO_NOP); SEND;	2507	REQ (EIO_NOP); SEND;
2086	}	2508	}
2087		2509
…		…
2103	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2525	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2104	{	2526	{
2105	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2527	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2106	}	2528	}
2107		2529
		2530	eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
		2531	{
		2532	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
		2533	}
		2534
		2535	eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data)
		2536	{
		2537	REQ (EIO_SYNCFS); req->int1 = fd; SEND;
		2538	}
		2539
		2540	eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
		2541	{
		2542	REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
		2543	}
		2544
2108	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2545	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2109	{	2546	{
2110	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2547	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2111	}	2548	}
2112		2549
…		…
2118	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)	2555	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
2119	{	2556	{
2120	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;	2557	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
2121	}	2558	}
2122		2559
2123	eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
2124	{
2125	REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
2126	}
2127
2128	eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)	2560	eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)
2129	{	2561	{
2130	REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;	2562	REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;
2131	}	2563	}
2132		2564
2133	eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
2134	{
2135	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
2136	}
2137
2138	eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)	2565	eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
2139	{	2566	{
2140	REQ (EIO_CLOSE); req->int1 = fd; SEND;	2567	REQ (EIO_CLOSE); req->int1 = fd; SEND;
2141	}	2568	}
2142		2569
…		…
2178	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)	2605	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
2179	{	2606	{
2180	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;	2607	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
2181	}	2608	}
2182		2609
2183	eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2610	eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2184	{	2611	{
2185	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2612	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2186	}	2613	}
2187		2614
2188	eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)	2615	eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
…		…
2208	eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)	2635	eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
2209	{	2636	{
2210	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;	2637	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
2211	}	2638	}
2212		2639
2213	eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2640	eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2214	{	2641	{
2215	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2642	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2216	}	2643	}
2217		2644
2218	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)	2645	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
…		…
2365	}	2792	}
2366		2793
2367	/*****************************************************************************/	2794	/*****************************************************************************/
2368	/* misc garbage */	2795	/* misc garbage */
2369		2796
2370	ssize_t	2797	eio_ssize_t
2371	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)	2798	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
2372	{	2799	{
2373	etp_worker wrk;
2374	ssize_t ret;
2375
2376	wrk.dbuf = 0;
2377
2378	ret = eio__sendfile (ofd, ifd, offset, count, &wrk);	2800	return eio__sendfile (ofd, ifd, offset, count);
2379
2380	if (wrk.dbuf)
2381	free (wrk.dbuf);
2382
2383	return ret;
2384	}	2801	}
2385		2802

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