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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 1.115 by root, Tue Mar 27 18:54:45 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
1005	while (todo > 0)	1096	while (todo > 0)
1006	{	1097	{
1007	size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE;	1098	size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE;
1008
1009	pread (fd, eio_buf, len, offset);
1010	offset += len;	1099	offset += len;
1011	todo -= len;	1100	todo -= len;
1012	}	1101	}
1013		1102
1014	errno = 0;	1103	FUBd;
		1104
		1105	/* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */
		1106	/* but not for e.g. EIO or eof, so we also never fail */
1015	return count;	1107	return 0;
1016	}	1108	}
1017		1109
1018	#endif	1110	#endif
1019		1111
1020	/* sendfile always needs emulation */	1112	/* sendfile always needs emulation */
1021	static ssize_t	1113	static eio_ssize_t
1022	eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self)	1114	eio__sendfile (int ofd, int ifd, off_t offset, size_t count)
1023	{	1115	{
1024	ssize_t written = 0;	1116	eio_ssize_t written = 0;
1025	ssize_t res;	1117	eio_ssize_t res;
1026		1118
1027	if (!count)	1119	if (!count)
1028	return 0;	1120	return 0;
1029		1121
1030	for (;;)	1122	for (;;)
…		…
1125	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK	1217	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1126	/* BSDs */	1218	/* BSDs */
1127	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */	1219	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */
1128	|| errno == ENOTSUP	1220	|| errno == ENOTSUP
1129	#endif	1221	#endif
		1222	#ifdef EOPNOTSUPP /* windows */
1130	|| errno == EOPNOTSUPP /* BSDs */	1223	|| errno == EOPNOTSUPP /* BSDs */
		1224	#endif
1131	#if __solaris	1225	#if __solaris
1132	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE	1226	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
1133	#endif	1227	#endif
1134	)	1228	)
1135	)	1229	)
…		…
1139		1233
1140	res = 0;	1234	res = 0;
1141		1235
1142	while (count)	1236	while (count)
1143	{	1237	{
1144	ssize_t cnt;	1238	eio_ssize_t cnt;
1145		1239
1146	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);	1240	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);
1147		1241
1148	if (cnt <= 0)	1242	if (cnt <= 0)
1149	{	1243	{
…		…
1161		1255
1162	offset += cnt;	1256	offset += cnt;
1163	res += cnt;	1257	res += cnt;
1164	count -= cnt;	1258	count -= cnt;
1165	}	1259	}
		1260
		1261	FUBd;
1166	}	1262	}
1167		1263
1168	return res;	1264	return res;
1169	}	1265	}
1170		1266
…		…
1197	/* round up length */	1293	/* round up length */
1198	*length = (*length + mask) & ~mask;	1294	*length = (*length + mask) & ~mask;
1199	}	1295	}
1200		1296
1201	#if !_POSIX_MEMLOCK	1297	#if !_POSIX_MEMLOCK
1202	# define eio__mlockall(a) eio_nosyscall()	1298	# define eio__mlockall(a) EIO_ENOSYS ()
1203	#else	1299	#else
1204		1300
1205	static int	1301	static int
1206	eio__mlockall (int flags)	1302	eio__mlockall (int flags)
1207	{	1303	{
…		…
1285	}	1381	}
1286		1382
1287	/*****************************************************************************/	1383	/*****************************************************************************/
1288	/* requests implemented outside eio_execute, because they are so large */	1384	/* requests implemented outside eio_execute, because they are so large */
1289		1385
		1386	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
1290	static void	1387	static int
1291	eio__realpath (eio_req *req, etp_worker *self)	1388	eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
1292	{	1389	{
1293	char *rel = req->ptr1;	1390	const char *rel = path;
1294	char *res;	1391	char *res;
1295	char *tmp1, *tmp2;	1392	char *tmp1, *tmp2;
1296	#if SYMLOOP_MAX > 32	1393	#if SYMLOOP_MAX > 32
1297	int symlinks = SYMLOOP_MAX;	1394	int symlinks = SYMLOOP_MAX;
1298	#else	1395	#else
1299	int symlinks = 32;	1396	int symlinks = 32;
1300	#endif	1397	#endif
1301		1398
1302	req->result = -1;
1303
1304	errno = EINVAL;	1399	errno = EINVAL;
1305	if (!rel)	1400	if (!rel)
1306	return;	1401	return -1;
1307		1402
1308	errno = ENOENT;	1403	errno = ENOENT;
1309	if (!*rel)	1404	if (!*rel)
1310	return;	1405	return -1;
1311		1406
1312	if (!req->ptr2)	1407	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;	1408	tmp1 = res + PATH_MAX;
1326	tmp2 = tmp1 + PATH_MAX;	1409	tmp2 = tmp1 + PATH_MAX;
1327		1410
1328	#if 0 /* disabled, the musl way to do things is just too racy */	1411	#if 0 /* disabled, the musl way to do things is just too racy */
1329	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)	1412	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
…		…
1348	#endif	1431	#endif
1349	#endif	1432	#endif
1350		1433
1351	if (*rel != '/')	1434	if (*rel != '/')
1352	{	1435	{
		1436	int len;
		1437
		1438	errno = ENOENT;
		1439	if (wd == EIO_INVALID_WD)
		1440	return -1;
		1441
		1442	if (wd == EIO_CWD)
		1443	{
1353	if (!getcwd (res, PATH_MAX))	1444	if (!getcwd (res, PATH_MAX))
1354	return;	1445	return -1;
		1446
		1447	len = strlen (res);
		1448	}
		1449	else
		1450	memcpy (res, wd->str, len = wd->len);
1355		1451
1356	if (res [1]) /* only use if not / */	1452	if (res [1]) /* only use if not / */
1357	res += strlen (res);	1453	res += len;
1358	}	1454	}
1359		1455
1360	while (*rel)	1456	while (*rel)
1361	{	1457	{
1362	ssize_t len, linklen;	1458	eio_ssize_t len, linklen;
1363	char *beg = rel;	1459	const char *beg = rel;
1364		1460
1365	while (*rel && *rel != '/')	1461	while (*rel && *rel != '/')
1366	++rel;	1462	++rel;
1367		1463
1368	len = rel - beg;	1464	len = rel - beg;
…		…
1380		1476
1381	if (beg [1] == '.' && len == 2)	1477	if (beg [1] == '.' && len == 2)
1382	{	1478	{
1383	/* .. - back up one component, if possible */	1479	/* .. - back up one component, if possible */
1384		1480
1385	while (res != req->ptr2)	1481	while (res != tmpbuf->ptr)
1386	if (*--res == '/')	1482	if (*--res == '/')
1387	break;	1483	break;
1388		1484
1389	continue;	1485	continue;
1390	}	1486	}
1391	}	1487	}
1392		1488
1393	errno = ENAMETOOLONG;	1489	errno = ENAMETOOLONG;
1394	if (res + 1 + len + 1 >= tmp1)	1490	if (res + 1 + len + 1 >= tmp1)
1395	return;	1491	return -1;
1396		1492
1397	/* copy one component */	1493	/* copy one component */
1398	*res = '/';	1494	*res = '/';
1399	memcpy (res + 1, beg, len);	1495	memcpy (res + 1, beg, len);
1400		1496
1401	/* zero-terminate, for readlink */	1497	/* zero-terminate, for readlink */
1402	res [len + 1] = 0;	1498	res [len + 1] = 0;
1403		1499
1404	/* now check if it's a symlink */	1500	/* now check if it's a symlink */
1405	linklen = readlink (req->ptr2, tmp1, PATH_MAX);	1501	linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX);
1406		1502
1407	if (linklen < 0)	1503	if (linklen < 0)
1408	{	1504	{
1409	if (errno != EINVAL)	1505	if (errno != EINVAL)
1410	return;	1506	return -1;
1411		1507
1412	/* it's a normal directory. hopefully */	1508	/* it's a normal directory. hopefully */
1413	res += len + 1;	1509	res += len + 1;
1414	}	1510	}
1415	else	1511	else
…		…
1417	/* yay, it was a symlink - build new path in tmp2 */	1513	/* yay, it was a symlink - build new path in tmp2 */
1418	int rellen = strlen (rel);	1514	int rellen = strlen (rel);
1419		1515
1420	errno = ENAMETOOLONG;	1516	errno = ENAMETOOLONG;
1421	if (linklen + 1 + rellen >= PATH_MAX)	1517	if (linklen + 1 + rellen >= PATH_MAX)
1422	return;	1518	return -1;
1423		1519
1424	errno = ELOOP;	1520	errno = ELOOP;
1425	if (!--symlinks)	1521	if (!--symlinks)
1426	return;	1522	return -1;
1427		1523
1428	if (*tmp1 == '/')	1524	if (*tmp1 == '/')
1429	res = req->ptr2; /* symlink resolves to an absolute path */	1525	res = tmpbuf->ptr; /* symlink resolves to an absolute path */
1430		1526
1431	/* we need to be careful, as rel might point into tmp2 already */	1527	/* we need to be careful, as rel might point into tmp2 already */
1432	memmove (tmp2 + linklen + 1, rel, rellen + 1);	1528	memmove (tmp2 + linklen + 1, rel, rellen + 1);
1433	tmp2 [linklen] = '/';	1529	tmp2 [linklen] = '/';
1434	memcpy (tmp2, tmp1, linklen);	1530	memcpy (tmp2, tmp1, linklen);
…		…
1436	rel = tmp2;	1532	rel = tmp2;
1437	}	1533	}
1438	}	1534	}
1439		1535
1440	/* special case for the lone root path */	1536	/* special case for the lone root path */
1441	if (res == req->ptr2)	1537	if (res == tmpbuf->ptr)
1442	*res++ = '/';	1538	*res++ = '/';
1443		1539
1444	req->result = res - (char *)req->ptr2;	1540	return res - (char *)tmpbuf->ptr;
1445
1446	done:
1447	req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */
1448	}	1541	}
1449		1542
1450	static signed char	1543	static signed char
1451	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)	1544	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)
1452	{	1545	{
…		…
1460		1553
1461	#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */	1554	#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 */	1555	#define EIO_SORT_FAST 60 /* when to only use insertion sort */
1463		1556
1464	static void	1557	static void
1465	eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)	1558	eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1466	{	1559	{
1467	unsigned char bits [9 + sizeof (ino_t) * 8];	1560	unsigned char bits [9 + sizeof (eio_ino_t) * 8];
1468	unsigned char *bit = bits;	1561	unsigned char *bit = bits;
1469		1562
1470	assert (CHAR_BIT == 8);	1563	assert (CHAR_BIT == 8);
1471	assert (sizeof (eio_dirent) * 8 < 256);	1564	assert (sizeof (eio_dirent) * 8 < 256);
1472	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */	1565	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */
…		…
1474		1567
1475	if (size <= EIO_SORT_FAST)	1568	if (size <= EIO_SORT_FAST)
1476	return;	1569	return;
1477		1570
1478	/* first prepare an array of bits to test in our radix sort */	1571	/* 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 */	1572	/* try to take endianness into account, as well as differences in eio_ino_t sizes */
1480	/* inode_bits must contain all inodes ORed together */	1573	/* inode_bits must contain all inodes ORed together */
1481	/* which is used to skip bits that are 0 everywhere, which is very common */	1574	/* which is used to skip bits that are 0 everywhere, which is very common */
1482	{	1575	{
1483	ino_t endianness;	1576	eio_ino_t endianness;
1484	int i, j;	1577	int i, j;
1485		1578
1486	/* we store the byte offset of byte n into byte n of "endianness" */	1579	/* we store the byte offset of byte n into byte n of "endianness" */
1487	for (i = 0; i < sizeof (ino_t); ++i)	1580	for (i = 0; i < sizeof (eio_ino_t); ++i)
1488	((unsigned char *)&endianness)[i] = i;	1581	((unsigned char *)&endianness)[i] = i;
1489		1582
1490	*bit++ = 0;	1583	*bit++ = 0;
1491		1584
1492	for (i = 0; i < sizeof (ino_t); ++i)	1585	for (i = 0; i < sizeof (eio_ino_t); ++i)
1493	{	1586	{
1494	/* shifting off the byte offsets out of "endianness" */	1587	/* shifting off the byte offsets out of "endianness" */
1495	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;	1588	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;
1496	endianness >>= 8;	1589	endianness >>= 8;
1497		1590
1498	for (j = 0; j < 8; ++j)	1591	for (j = 0; j < 8; ++j)
1499	if (inode_bits & (((ino_t)1) << (i * 8 + j)))	1592	if (inode_bits & (((eio_ino_t)1) << (i * 8 + j)))
1500	*bit++ = offs + j;	1593	*bit++ = offs + j;
1501	}	1594	}
1502		1595
1503	for (j = 0; j < 8; ++j)	1596	for (j = 0; j < 8; ++j)
1504	if (score_bits & (1 << j))	1597	if (score_bits & (1 << j))
1505	*bit++ = offsetof (eio_dirent, score) * 8 + j;	1598	*bit++ = offsetof (eio_dirent, score) * 8 + j;
1506	}	1599	}
1507		1600
1508	/* now actually do the sorting (a variant of MSD radix sort) */	1601	/* now actually do the sorting (a variant of MSD radix sort) */
1509	{	1602	{
1510	eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base;	1603	eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base;
1511	eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end;	1604	eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end;
1512	unsigned char *bit_stk [9 + sizeof (ino_t) * 8];	1605	unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8];
1513	int stk_idx = 0;	1606	int stk_idx = 0;
1514		1607
1515	base_stk [stk_idx] = dents;	1608	base_stk [stk_idx] = dents;
1516	end_stk [stk_idx] = dents + size;	1609	end_stk [stk_idx] = dents + size;
1517	bit_stk [stk_idx] = bit - 1;	1610	bit_stk [stk_idx] = bit - 1;
…		…
1596	}	1689	}
1597	}	1690	}
1598	}	1691	}
1599		1692
1600	static void	1693	static void
1601	eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)	1694	eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1602	{	1695	{
1603	if (size <= 1)	1696	if (size <= 1)
1604	return; /* our insertion sort relies on size > 0 */	1697	return; /* our insertion sort relies on size > 0 */
1605		1698
1606	/* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */	1699	/* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */
…		…
1614		1707
1615	/* read a full directory */	1708	/* read a full directory */
1616	static void	1709	static void
1617	eio__scandir (eio_req *req, etp_worker *self)	1710	eio__scandir (eio_req *req, etp_worker *self)
1618	{	1711	{
1619	DIR *dirp;
1620	EIO_STRUCT_DIRENT *entp;
1621	char *name, *names;	1712	char *name, *names;
1622	int namesalloc = 4096;	1713	int namesalloc = 4096 - sizeof (void *) * 4;
1623	int namesoffs = 0;	1714	int namesoffs = 0;
1624	int flags = req->int1;	1715	int flags = req->int1;
1625	eio_dirent *dents = 0;	1716	eio_dirent *dents = 0;
1626	int dentalloc = 128;	1717	int dentalloc = 128;
1627	int dentoffs = 0;	1718	int dentoffs = 0;
1628	ino_t inode_bits = 0;	1719	eio_ino_t inode_bits = 0;
		1720	#ifdef _WIN32
		1721	HANDLE dirp;
		1722	WIN32_FIND_DATA entp;
		1723	#else
		1724	DIR *dirp;
		1725	EIO_STRUCT_DIRENT *entp;
		1726	#endif
1629		1727
1630	req->result = -1;	1728	req->result = -1;
1631		1729
1632	if (!(flags & EIO_READDIR_DENTS))	1730	if (!(flags & EIO_READDIR_DENTS))
1633	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);	1731	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);
1634		1732
1635	X_LOCK (wrklock);	1733	#ifdef _WIN32
1636	/* the corresponding closedir is in ETP_WORKER_CLEAR */	1734	{
		1735	int len = strlen ((const char *)req->ptr1);
		1736	char *path = malloc (MAX_PATH);
		1737	const char *fmt;
		1738	const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
		1739
		1740	if (!len)
		1741	fmt = "./*";
		1742	else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\')
		1743	fmt = "%s*";
		1744	else
		1745	fmt = "%s/*";
		1746
		1747	_snprintf (path, MAX_PATH, fmt, reqpath);
		1748	dirp = FindFirstFile (path, &entp);
		1749	free (path);
		1750
		1751	if (dirp == INVALID_HANDLE_VALUE)
		1752	{
		1753	/* should steal _dosmaperr */
		1754	switch (GetLastError ())
		1755	{
		1756	case ERROR_FILE_NOT_FOUND:
		1757	req->result = 0;
		1758	break;
		1759
		1760	case ERROR_INVALID_NAME:
		1761	case ERROR_PATH_NOT_FOUND:
		1762	case ERROR_NO_MORE_FILES:
		1763	errno = ENOENT;
		1764	break;
		1765
		1766	case ERROR_NOT_ENOUGH_MEMORY:
		1767	errno = ENOMEM;
		1768	break;
		1769
		1770	default:
		1771	errno = EINVAL;
		1772	break;
		1773	}
		1774
		1775	return;
		1776	}
		1777	}
		1778	#else
		1779	#if HAVE_AT
		1780	if (req->wd)
		1781	{
		1782	int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY);
		1783
		1784	if (fd < 0)
		1785	return;
		1786
		1787	dirp = fdopendir (fd);
		1788
		1789	if (!dirp)
		1790	close (fd);
		1791	}
		1792	else
1637	self->dirp = dirp = opendir (req->ptr1);	1793	dirp = opendir (req->ptr1);
		1794	#else
		1795	dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1));
		1796	#endif
		1797
		1798	if (!dirp)
		1799	return;
		1800	#endif
1638		1801
1639	if (req->flags & EIO_FLAG_PTR1_FREE)	1802	if (req->flags & EIO_FLAG_PTR1_FREE)
1640	free (req->ptr1);	1803	free (req->ptr1);
1641		1804
1642	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;	1805	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;
1643	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;	1806	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
1644	req->ptr2 = names = malloc (namesalloc);	1807	req->ptr2 = names = malloc (namesalloc);
1645	X_UNLOCK (wrklock);
1646		1808
1647	if (dirp && names && (!flags || dents))	1809	if (!names || (flags && !dents))
		1810	return;
		1811
1648	for (;;)	1812	for (;;)
1649	{	1813	{
		1814	int done;
		1815
		1816	#ifdef _WIN32
		1817	done = !dirp;
		1818	#else
1650	errno = 0;	1819	errno = 0;
1651	entp = readdir (dirp);	1820	entp = readdir (dirp);
		1821	done = !entp;
		1822	#endif
1652		1823
1653	if (!entp)	1824	if (done)
1654	{	1825	{
		1826	#ifndef _WIN32
		1827	int old_errno = errno;
		1828	closedir (dirp);
		1829	errno = old_errno;
		1830
1655	if (errno)	1831	if (errno)
1656	break;	1832	break;
		1833	#endif
1657		1834
1658	/* sort etc. */	1835	/* sort etc. */
1659	req->int1 = flags;	1836	req->int1 = flags;
1660	req->result = dentoffs;	1837	req->result = dentoffs;
1661		1838
1662	if (flags & EIO_READDIR_STAT_ORDER)	1839	if (flags & EIO_READDIR_STAT_ORDER)
1663	eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits);	1840	eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits);
1664	else if (flags & EIO_READDIR_DIRS_FIRST)	1841	else if (flags & EIO_READDIR_DIRS_FIRST)
1665	if (flags & EIO_READDIR_FOUND_UNKNOWN)	1842	if (flags & EIO_READDIR_FOUND_UNKNOWN)
1666	eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */	1843	eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */
1667	else	1844	else
		1845	{
		1846	/* in this case, all is known, and we just put dirs first and sort them */
		1847	eio_dirent *oth = dents + dentoffs;
		1848	eio_dirent *dir = dents;
		1849
		1850	/* now partition dirs to the front, and non-dirs to the back */
		1851	/* by walking from both sides and swapping if necessary */
		1852	while (oth > dir)
		1853	{
		1854	if (dir->type == EIO_DT_DIR)
		1855	++dir;
		1856	else if ((--oth)->type == EIO_DT_DIR)
		1857	{
		1858	eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
		1859
		1860	++dir;
		1861	}
		1862	}
		1863
		1864	/* now sort the dirs only (dirs all have the same score) */
		1865	eio_dent_sort (dents, dir - dents, 0, inode_bits);
		1866	}
		1867
		1868	break;
		1869	}
		1870
		1871	/* now add the entry to our list(s) */
		1872	name = D_NAME (entp);
		1873
		1874	/* skip . and .. entries */
		1875	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
		1876	{
		1877	int len = D_NAMLEN (entp) + 1;
		1878
		1879	while (ecb_expect_false (namesoffs + len > namesalloc))
		1880	{
		1881	namesalloc *= 2;
		1882	req->ptr2 = names = realloc (names, namesalloc);
		1883
		1884	if (!names)
		1885	break;
		1886	}
		1887
		1888	memcpy (names + namesoffs, name, len);
		1889
		1890	if (dents)
		1891	{
		1892	struct eio_dirent *ent;
		1893
		1894	if (ecb_expect_false (dentoffs == dentalloc))
1668	{	1895	{
1669	/* in this case, all is known, and we just put dirs first and sort them */	1896	dentalloc *= 2;
		1897	req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
		1898
		1899	if (!dents)
		1900	break;
		1901	}
		1902
1670	eio_dirent *oth = dents + dentoffs;	1903	ent = dents + dentoffs;
1671	eio_dirent *dir = dents;
1672		1904
1673	/* now partition dirs to the front, and non-dirs to the back */	1905	ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1674	/* by walking from both sides and swapping if necessary */	1906	ent->namelen = len - 1;
1675	while (oth > dir)	1907	ent->inode = D_INO (entp);
		1908
		1909	inode_bits |= ent->inode;
		1910
		1911	switch (D_TYPE (entp))
		1912	{
		1913	default:
		1914	ent->type = EIO_DT_UNKNOWN;
		1915	flags |= EIO_READDIR_FOUND_UNKNOWN;
		1916	break;
		1917
		1918	#ifdef DT_FIFO
		1919	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
		1920	#endif
		1921	#ifdef DT_CHR
		1922	case DT_CHR: ent->type = EIO_DT_CHR; break;
		1923	#endif
		1924	#ifdef DT_MPC
		1925	case DT_MPC: ent->type = EIO_DT_MPC; break;
		1926	#endif
		1927	#ifdef DT_DIR
		1928	case DT_DIR: ent->type = EIO_DT_DIR; break;
		1929	#endif
		1930	#ifdef DT_NAM
		1931	case DT_NAM: ent->type = EIO_DT_NAM; break;
		1932	#endif
		1933	#ifdef DT_BLK
		1934	case DT_BLK: ent->type = EIO_DT_BLK; break;
		1935	#endif
		1936	#ifdef DT_MPB
		1937	case DT_MPB: ent->type = EIO_DT_MPB; break;
		1938	#endif
		1939	#ifdef DT_REG
		1940	case DT_REG: ent->type = EIO_DT_REG; break;
		1941	#endif
		1942	#ifdef DT_NWK
		1943	case DT_NWK: ent->type = EIO_DT_NWK; break;
		1944	#endif
		1945	#ifdef DT_CMP
		1946	case DT_CMP: ent->type = EIO_DT_CMP; break;
		1947	#endif
		1948	#ifdef DT_LNK
		1949	case DT_LNK: ent->type = EIO_DT_LNK; break;
		1950	#endif
		1951	#ifdef DT_SOCK
		1952	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
		1953	#endif
		1954	#ifdef DT_DOOR
		1955	case DT_DOOR: ent->type = EIO_DT_DOOR; break;
		1956	#endif
		1957	#ifdef DT_WHT
		1958	case DT_WHT: ent->type = EIO_DT_WHT; break;
		1959	#endif
		1960	}
		1961
		1962	ent->score = 7;
		1963
		1964	if (flags & EIO_READDIR_DIRS_FIRST)
		1965	{
		1966	if (ent->type == EIO_DT_UNKNOWN)
1676	{	1967	{
1677	if (dir->type == EIO_DT_DIR)	1968	if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1678	++dir;	1969	ent->score = 1;
1679	else if ((--oth)->type == EIO_DT_DIR)	1970	else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1680	{	1971	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	}	1972	}
1686		1973	else if (ent->type == EIO_DT_DIR)
1687	/* now sort the dirs only (dirs all have the same score) */	1974	ent->score = 0;
1688	eio_dent_sort (dents, dir - dents, 0, inode_bits);
1689	}	1975	}
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	}	1976	}
1712		1977
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;	1978	namesoffs += len;
1806	++dentoffs;	1979	++dentoffs;
1807	}	1980	}
1808		1981
1809	if (EIO_CANCELLED (req))	1982	if (EIO_CANCELLED (req))
1810	{	1983	{
1811	errno = ECANCELED;	1984	errno = ECANCELED;
1812	break;	1985	break;
1813	}	1986	}
		1987
		1988	#ifdef _WIN32
		1989	if (!FindNextFile (dirp, &entp))
		1990	{
		1991	FindClose (dirp);
		1992	dirp = 0;
1814	}	1993	}
		1994	#endif
		1995	}
1815	}	1996	}
		1997
		1998	/*****************************************************************************/
		1999	/* working directory stuff */
		2000	/* various deficiencies in the posix 2008 api force us to */
		2001	/* keep the absolute path in string form at all times */
		2002	/* fuck yeah. */
		2003
		2004	#if !HAVE_AT
		2005
		2006	/* a bit like realpath, but usually faster because it doesn'T have to return */
		2007	/* an absolute or canonical path */
		2008	static const char *
		2009	wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
		2010	{
		2011	if (!wd || *path == '/')
		2012	return path;
		2013
		2014	if (path [0] == '.' && !path [1])
		2015	return wd->str;
		2016
		2017	{
		2018	int l1 = wd->len;
		2019	int l2 = strlen (path);
		2020
		2021	char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2);
		2022
		2023	memcpy (res, wd->str, l1);
		2024	res [l1] = '/';
		2025	memcpy (res + l1 + 1, path, l2 + 1);
		2026
		2027	return res;
		2028	}
		2029	}
		2030
		2031	#endif
		2032
		2033	static eio_wd
		2034	eio__wd_open_sync (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
		2035	{
		2036	int fd;
		2037	eio_wd res;
		2038	int len = eio__realpath (tmpbuf, wd, path);
		2039
		2040	if (len < 0)
		2041	return EIO_INVALID_WD;
		2042
		2043	#if HAVE_AT
		2044	fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY);
		2045
		2046	if (fd < 0)
		2047	return EIO_INVALID_WD;
		2048	#endif
		2049
		2050	res = malloc (sizeof (*res) + len); /* one extra 0-byte */
		2051
		2052	#if HAVE_AT
		2053	res->fd = fd;
		2054	#endif
		2055
		2056	res->len = len;
		2057	memcpy (res->str, tmpbuf->ptr, len);
		2058	res->str [len] = 0;
		2059
		2060	return res;
		2061	}
		2062
		2063	eio_wd
		2064	eio_wd_open_sync (eio_wd wd, const char *path)
		2065	{
		2066	struct tmpbuf tmpbuf = { 0 };
		2067	wd = eio__wd_open_sync (&tmpbuf, wd, path);
		2068	free (tmpbuf.ptr);
		2069
		2070	return wd;
		2071	}
		2072
		2073	void
		2074	eio_wd_close_sync (eio_wd wd)
		2075	{
		2076	if (wd != EIO_INVALID_WD && wd != EIO_CWD)
		2077	{
		2078	#if HAVE_AT
		2079	close (wd->fd);
		2080	#endif
		2081	free (wd);
		2082	}
		2083	}
		2084
		2085	#if HAVE_AT
		2086
		2087	/* they forgot these */
		2088
		2089	static int
		2090	eio__truncateat (int dirfd, const char *path, off_t length)
		2091	{
		2092	int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC);
		2093	int res;
		2094
		2095	if (fd < 0)
		2096	return fd;
		2097
		2098	res = ftruncate (fd, length);
		2099	close (fd);
		2100	return res;
		2101	}
		2102
		2103	static int
		2104	eio__statvfsat (int dirfd, const char *path, struct statvfs *buf)
		2105	{
		2106	int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC);
		2107	int res;
		2108
		2109	if (fd < 0)
		2110	return fd;
		2111
		2112	res = fstatvfs (fd, buf);
		2113	close (fd);
		2114	return res;
		2115
		2116	}
		2117
		2118	#endif
1816		2119
1817	/*****************************************************************************/	2120	/*****************************************************************************/
1818		2121
1819	#define ALLOC(len) \	2122	#define ALLOC(len) \
1820	if (!req->ptr2) \	2123	if (!req->ptr2) \
…		…
1829	req->result = -1; \	2132	req->result = -1; \
1830	break; \	2133	break; \
1831	} \	2134	} \
1832	}	2135	}
1833		2136
		2137	static void ecb_noinline ecb_cold
		2138	etp_proc_init (void)
		2139	{
		2140	#if HAVE_PRCTL_SET_NAME
		2141	/* provide a more sensible "thread name" */
		2142	char name[16 + 1];
		2143	const int namelen = sizeof (name) - 1;
		2144	int len;
		2145
		2146	prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0);
		2147	name [namelen] = 0;
		2148	len = strlen (name);
		2149	strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio");
		2150	prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
		2151	#endif
		2152	}
		2153
1834	X_THREAD_PROC (etp_proc)	2154	X_THREAD_PROC (etp_proc)
1835	{	2155	{
1836	ETP_REQ *req;	2156	ETP_REQ *req;
1837	struct timespec ts;	2157	struct timespec ts;
1838	etp_worker *self = (etp_worker *)thr_arg;	2158	etp_worker *self = (etp_worker *)thr_arg;
1839	int timeout;	2159
		2160	etp_proc_init ();
1840		2161
1841	/* try to distribute timeouts somewhat evenly */	2162	/* try to distribute timeouts somewhat evenly */
1842	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);	2163	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1843		2164
1844	for (;;)	2165	for (;;)
…		…
1847		2168
1848	X_LOCK (reqlock);	2169	X_LOCK (reqlock);
1849		2170
1850	for (;;)	2171	for (;;)
1851	{	2172	{
1852	self->req = req = reqq_shift (&req_queue);	2173	req = reqq_shift (&req_queue);
1853		2174
1854	if (req)	2175	if (req)
1855	break;	2176	break;
1856		2177
1857	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */	2178	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */
…		…
1895	++npending;	2216	++npending;
1896		2217
1897	if (!reqq_push (&res_queue, req) && want_poll_cb)	2218	if (!reqq_push (&res_queue, req) && want_poll_cb)
1898	want_poll_cb ();	2219	want_poll_cb ();
1899		2220
1900	self->req = 0;
1901	etp_worker_clear (self);	2221	etp_worker_clear (self);
1902		2222
1903	X_UNLOCK (reslock);	2223	X_UNLOCK (reslock);
1904	}	2224	}
1905		2225
1906	quit:	2226	quit:
		2227	free (req);
		2228
1907	X_LOCK (wrklock);	2229	X_LOCK (wrklock);
1908	etp_worker_free (self);	2230	etp_worker_free (self);
1909	X_UNLOCK (wrklock);	2231	X_UNLOCK (wrklock);
1910		2232
1911	return 0;	2233	return 0;
…		…
1914	/*****************************************************************************/	2236	/*****************************************************************************/
1915		2237
1916	int ecb_cold	2238	int ecb_cold
1917	eio_init (void (*want_poll)(void), void (*done_poll)(void))	2239	eio_init (void (*want_poll)(void), void (*done_poll)(void))
1918	{	2240	{
		2241	#if !HAVE_PREADWRITE
		2242	X_MUTEX_CREATE (preadwritelock);
		2243	#endif
		2244
1919	return etp_init (want_poll, done_poll);	2245	return etp_init (want_poll, done_poll);
1920	}	2246	}
1921		2247
1922	ecb_inline void	2248	ecb_inline void
1923	eio_api_destroy (eio_req *req)	2249	eio_api_destroy (eio_req *req)
…		…
1950	}	2276	}
1951		2277
1952	static void	2278	static void
1953	eio_execute (etp_worker *self, eio_req *req)	2279	eio_execute (etp_worker *self, eio_req *req)
1954	{	2280	{
		2281	#if HAVE_AT
		2282	int dirfd;
		2283	#else
		2284	const char *path;
		2285	#endif
		2286
1955	if (ecb_expect_false (EIO_CANCELLED (req)))	2287	if (ecb_expect_false (EIO_CANCELLED (req)))
1956	{	2288	{
1957	req->result = -1;	2289	req->result = -1;
1958	req->errorno = ECANCELED;	2290	req->errorno = ECANCELED;
1959	return;	2291	return;
1960	}	2292	}
1961		2293
		2294	if (ecb_expect_false (req->wd == EIO_INVALID_WD))
		2295	{
		2296	req->result = -1;
		2297	req->errorno = ENOENT;
		2298	return;
		2299	}
		2300
		2301	if (req->type >= EIO_OPEN)
		2302	{
		2303	#if HAVE_AT
		2304	dirfd = WD2FD (req->wd);
		2305	#else
		2306	path = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
		2307	#endif
		2308	}
		2309
1962	switch (req->type)	2310	switch (req->type)
1963	{	2311	{
		2312	case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);
		2313	req->result = req->wd == EIO_INVALID_WD ? -1 : 0;
		2314	break;
		2315	case EIO_WD_CLOSE: req->result = 0;
		2316	eio_wd_close_sync (req->wd); break;
		2317
1964	case EIO_READ: ALLOC (req->size);	2318	case EIO_READ: ALLOC (req->size);
1965	req->result = req->offs >= 0	2319	req->result = req->offs >= 0
1966	? pread (req->int1, req->ptr2, req->size, req->offs)	2320	? pread (req->int1, req->ptr2, req->size, req->offs)
1967	: read (req->int1, req->ptr2, req->size); break;	2321	: read (req->int1, req->ptr2, req->size); break;
1968	case EIO_WRITE: req->result = req->offs >= 0	2322	case EIO_WRITE: req->result = req->offs >= 0
1969	? pwrite (req->int1, req->ptr2, req->size, req->offs)	2323	? pwrite (req->int1, req->ptr2, req->size, req->offs)
1970	: write (req->int1, req->ptr2, req->size); break;	2324	: write (req->int1, req->ptr2, req->size); break;
1971		2325
1972	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	2326	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;	2327	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
		2328
		2329	#if HAVE_AT
1974		2330
1975	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2331	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1976	req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2332	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;
1977	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2333	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2334	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;
		2335	case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;
		2336	case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;
		2337	case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;
		2338	case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;
		2339
		2340	case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;
		2341	case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;
		2342	case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;
		2343	case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break;
		2344	case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break;
		2345	case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;
		2346	case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
		2347	case EIO_READLINK: ALLOC (PATH_MAX);
		2348	req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;
		2349	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2350	req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2351	case EIO_UTIME:
		2352	case EIO_FUTIME:
		2353	{
		2354	struct timespec ts[2];
		2355	struct timespec *times;
		2356
		2357	if (req->nv1 != -1. || req->nv2 != -1.)
		2358	{
		2359	ts[0].tv_sec = req->nv1;
		2360	ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9;
		2361	ts[1].tv_sec = req->nv2;
		2362	ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9;
		2363
		2364	times = ts;
		2365	}
		2366	else
		2367	times = 0;
		2368
		2369	req->result = req->type == EIO_FUTIME
		2370	? futimens (req->int1, times)
		2371	: utimensat (dirfd, req->ptr1, times, 0);
		2372	}
		2373	break;
		2374
		2375	#else
		2376
		2377	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2378	req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2379	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1978	req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2380	req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2381	case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;
		2382	case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break;
		2383	case EIO_TRUNCATE: req->result = truncate (path , req->offs); break;
		2384	case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break;
		2385
		2386	case EIO_UNLINK: req->result = unlink (path ); break;
		2387	case EIO_RMDIR: req->result = rmdir (path ); break;
		2388	case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break;
		2389	case EIO_RENAME: req->result = rename (path , req->ptr2); break;
		2390	case EIO_LINK: req->result = link (path , req->ptr2); break;
		2391	case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break;
		2392	case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;
		2393	case EIO_READLINK: ALLOC (PATH_MAX);
		2394	req->result = readlink (path, req->ptr2, PATH_MAX); break;
		2395	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2396	req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2397
		2398	case EIO_UTIME:
		2399	case EIO_FUTIME:
		2400	{
		2401	struct timeval tv[2];
		2402	struct timeval *times;
		2403
		2404	if (req->nv1 != -1. || req->nv2 != -1.)
		2405	{
		2406	tv[0].tv_sec = req->nv1;
		2407	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6;
		2408	tv[1].tv_sec = req->nv2;
		2409	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6;
		2410
		2411	times = tv;
		2412	}
		2413	else
		2414	times = 0;
		2415
		2416	req->result = req->type == EIO_FUTIME
		2417	? futimes (req->int1, times)
		2418	: utimes (req->ptr1, times);
		2419	}
		2420	break;
		2421
		2422	#endif
		2423
		2424	case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))
		2425	{
		2426	ALLOC (req->result);
		2427	memcpy (req->ptr2, self->tmpbuf.ptr, req->result);
		2428	}
		2429	break;
		2430
1979	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2431	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1980	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;	2432	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
1981		2433
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));	2434	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1985	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;	2435	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1986		2436
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;	2437	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;	2438	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;	2439	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1993		2440
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;	2441	case EIO_CLOSE: req->result = close (req->int1); break;
1996	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;	2442	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;	2443	case EIO_SYNC: req->result = 0; sync (); break;
2011	case EIO_FSYNC: req->result = fsync (req->int1); break;	2444	case EIO_FSYNC: req->result = fsync (req->int1); break;
2012	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;	2445	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
		2446	case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
		2447	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;	2448	case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
2014	case EIO_MTOUCH: req->result = eio__mtouch (req); break;	2449	case EIO_MTOUCH: req->result = eio__mtouch (req); break;
2015	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;	2450	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
2016	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;	2451	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;	2452	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
2019		2453
2020	case EIO_READDIR: eio__scandir (req, self); break;	2454	case EIO_READDIR: eio__scandir (req, self); break;
2021		2455
2022	case EIO_BUSY:	2456	case EIO_BUSY:
…		…
2032	req->result = select (0, 0, 0, 0, &tv);	2466	req->result = select (0, 0, 0, 0, &tv);
2033	}	2467	}
2034	#endif	2468	#endif
2035	break;	2469	break;
2036		2470
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:	2471	case EIO_GROUP:
2062	abort (); /* handled in eio_request */	2472	abort (); /* handled in eio_request */
2063		2473
2064	case EIO_NOP:	2474	case EIO_NOP:
2065	req->result = 0;	2475	req->result = 0;
…		…
2078	req->errorno = errno;	2488	req->errorno = errno;
2079	}	2489	}
2080		2490
2081	#ifndef EIO_NO_WRAPPERS	2491	#ifndef EIO_NO_WRAPPERS
2082		2492
		2493	eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data)
		2494	{
		2495	REQ (EIO_WD_OPEN); PATH; SEND;
		2496	}
		2497
		2498	eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data)
		2499	{
		2500	REQ (EIO_WD_CLOSE); req->wd = wd; SEND;
		2501	}
		2502
2083	eio_req *eio_nop (int pri, eio_cb cb, void *data)	2503	eio_req *eio_nop (int pri, eio_cb cb, void *data)
2084	{	2504	{
2085	REQ (EIO_NOP); SEND;	2505	REQ (EIO_NOP); SEND;
2086	}	2506	}
2087		2507
…		…
2103	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2523	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2104	{	2524	{
2105	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2525	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2106	}	2526	}
2107		2527
		2528	eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
		2529	{
		2530	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
		2531	}
		2532
		2533	eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data)
		2534	{
		2535	REQ (EIO_SYNCFS); req->int1 = fd; SEND;
		2536	}
		2537
		2538	eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
		2539	{
		2540	REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
		2541	}
		2542
2108	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2543	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2109	{	2544	{
2110	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2545	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2111	}	2546	}
2112		2547
…		…
2118	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)	2553	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
2119	{	2554	{
2120	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;	2555	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
2121	}	2556	}
2122		2557
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)	2558	eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)
2129	{	2559	{
2130	REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;	2560	REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;
2131	}	2561	}
2132		2562
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)	2563	eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
2139	{	2564	{
2140	REQ (EIO_CLOSE); req->int1 = fd; SEND;	2565	REQ (EIO_CLOSE); req->int1 = fd; SEND;
2141	}	2566	}
2142		2567
…		…
2178	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)	2603	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
2179	{	2604	{
2180	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;	2605	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
2181	}	2606	}
2182		2607
2183	eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2608	eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2184	{	2609	{
2185	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2610	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2186	}	2611	}
2187		2612
2188	eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)	2613	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)	2633	eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
2209	{	2634	{
2210	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;	2635	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
2211	}	2636	}
2212		2637
2213	eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2638	eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2214	{	2639	{
2215	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2640	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2216	}	2641	}
2217		2642
2218	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)	2643	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
…		…
2365	}	2790	}
2366		2791
2367	/*****************************************************************************/	2792	/*****************************************************************************/
2368	/* misc garbage */	2793	/* misc garbage */
2369		2794
2370	ssize_t	2795	eio_ssize_t
2371	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)	2796	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
2372	{	2797	{
2373	etp_worker wrk;
2374	ssize_t ret;
2375
2376	wrk.dbuf = 0;
2377
2378	ret = eio__sendfile (ofd, ifd, offset, count, &wrk);	2798	return eio__sendfile (ofd, ifd, offset, count);
2379
2380	if (wrk.dbuf)
2381	free (wrk.dbuf);
2382
2383	return ret;
2384	}	2799	}
2385		2800

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