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Comparing cvsroot/libeio/eio.c (file contents):
Revision 1.79 by root, Tue Jul 5 16:57:41 2011 UTC vs.
Revision 1.123 by root, Tue Oct 9 04:53:53 2012 UTC

1	/*	1	/*
2	* libeio implementation	2	* libeio implementation
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libeio@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libeio@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
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>
54	#include <stdlib.h>	54	#include <stdlib.h>
55	#include <string.h>	55	#include <string.h>
56	#include <errno.h>	56	#include <errno.h>
57	#include <sys/types.h>	57	#include <sys/types.h>
58	#include <sys/stat.h>	58	#include <sys/stat.h>
59	#include <sys/statvfs.h>
60	#include <limits.h>	59	#include <limits.h>
61	#include <fcntl.h>	60	#include <fcntl.h>
62	#include <assert.h>	61	#include <assert.h>
63		62
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 form 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
		69	#ifndef ECANCELED
		70	# define ECANCELED EDOM
		71	#endif
		72	#ifndef ELOOP
		73	# define ELOOP EDOM
		74	#endif
		75
		76	#if !defined(ENOTSOCK) && defined(WSAENOTSOCK)
		77	# define ENOTSOCK WSAENOTSOCK
		78	#endif
		79
		80	static void eio_destroy (eio_req *req);
		81
70	#ifndef EIO_FINISH	82	#ifndef EIO_FINISH
71	# 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
72	#endif	84	#endif
73		85
74	#ifndef EIO_DESTROY	86	#ifndef EIO_DESTROY
…		…
77		89
78	#ifndef EIO_FEED	90	#ifndef EIO_FEED
79	# define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0)	91	# define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0)
80	#endif	92	#endif
81		93
		94	#ifndef EIO_FD_TO_WIN32_HANDLE
		95	# define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
		96	#endif
		97	#ifndef EIO_WIN32_HANDLE_TO_FD
		98	# define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
		99	#endif
		100
		101	#define EIO_ERRNO(errval,retval) ((errno = errval), retval)
		102
		103	#define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1)
		104
82	#ifdef _WIN32	105	#ifdef _WIN32
83		106
84	/*doh*/	107	#undef PAGESIZE
		108	#define PAGESIZE 4096 /* GetSystemInfo? */
		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 */
		114	#define stat(path,buf) _stati64 (path,buf)
		115	#define fstat(fd,buf) _fstati64 (fd,buf)
		116	#endif
		117	#define lstat(path,buf) stat (path,buf)
		118	#define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1))
		119	#define mkdir(path,mode) _mkdir (path)
		120	#define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1))
		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 ()
		127	#define chown(path,uid,gid) EIO_ENOSYS ()
		128	#define fchown(fd,uid,gid) EIO_ENOSYS ()
		129	#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */
		130	#define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */
		131	#define mknod(path,mode,dev) 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	#define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset)
		138	#define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset)
		139
		140	#if __GNUC__
		141	typedef long long eio_off_t; /* signed for compatibility to msvc */
		142	#else
		143	typedef __int64 eio_off_t; /* unsigned not supported by msvc */
		144	#endif
		145
		146	static eio_ssize_t
		147	eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset)
		148	{
		149	OVERLAPPED o = { 0 };
		150	DWORD got;
		151
		152	o.Offset = offset;
		153	o.OffsetHigh = offset >> 32;
		154
		155	return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o)
		156	? got : -1;
		157	}
		158
		159	static eio_ssize_t
		160	eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset)
		161	{
		162	OVERLAPPED o = { 0 };
		163	DWORD got;
		164
		165	o.Offset = offset;
		166	o.OffsetHigh = offset >> 32;
		167
		168	return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o)
		169	? got : -1;
		170	}
		171
		172	/* rename() uses MoveFile, which fails to overwrite */
		173	#define rename(old,neu) eio__rename (old, neu)
		174
		175	static int
		176	eio__rename (const char *old, const char *neu)
		177	{
		178	if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING))
		179	return 0;
		180
		181	/* should steal _dosmaperr */
		182	switch (GetLastError ())
		183	{
		184	case ERROR_FILE_NOT_FOUND:
		185	case ERROR_PATH_NOT_FOUND:
		186	case ERROR_INVALID_DRIVE:
		187	case ERROR_NO_MORE_FILES:
		188	case ERROR_BAD_NETPATH:
		189	case ERROR_BAD_NET_NAME:
		190	case ERROR_BAD_PATHNAME:
		191	case ERROR_FILENAME_EXCED_RANGE:
		192	errno = ENOENT;
		193	break;
		194
		195	default:
		196	errno = EACCES;
		197	break;
		198	}
		199
		200	return -1;
		201	}
		202
		203	/* we could even stat and see if it exists */
		204	static int
		205	symlink (const char *old, const char *neu)
		206	{
		207	#if WINVER >= 0x0600
		208	if (CreateSymbolicLink (neu, old, 1))
		209	return 0;
		210
		211	if (CreateSymbolicLink (neu, old, 0))
		212	return 0;
		213	#endif
		214
		215	return EIO_ERRNO (ENOENT, -1);
		216	}
		217
		218	/* POSIX API only */
		219	#define CreateHardLink(neu,old,flags) 0
		220	#define CreateSymbolicLink(neu,old,flags) 0
		221
		222	struct statvfs
		223	{
		224	int dummy;
		225	};
		226
		227	#define DT_DIR EIO_DT_DIR
		228	#define DT_REG EIO_DT_REG
		229	#define D_NAME(entp) entp.cFileName
		230	#define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG)
		231
85	#else	232	#else
86		233
87	# include <sys/time.h>	234	#include <sys/time.h>
88	# include <sys/select.h>	235	#include <sys/select.h>
		236	#include <sys/statvfs.h>
89	# include <unistd.h>	237	#include <unistd.h>
		238	#include <signal.h>
		239	#include <dirent.h>
		240
		241	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		242	#include <sys/mman.h>
		243	#endif
		244
		245	#define D_NAME(entp) entp->d_name
		246
		247	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
		248	#if __FreeBSD__ || __NetBSD__ || __OpenBSD__
		249	#define _DIRENT_HAVE_D_TYPE /* sigh */
		250	#define D_INO(de) (de)->d_fileno
		251	#define D_NAMLEN(de) (de)->d_namlen
		252	#elif __linux || defined d_ino || _XOPEN_SOURCE >= 600
		253	#define D_INO(de) (de)->d_ino
		254	#endif
		255
		256	#ifdef _D_EXACT_NAMLEN
		257	#undef D_NAMLEN
		258	#define D_NAMLEN(de) _D_EXACT_NAMLEN (de)
		259	#endif
		260
		261	#ifdef _DIRENT_HAVE_D_TYPE
		262	#define D_TYPE(de) (de)->d_type
		263	#endif
		264
		265	#ifndef EIO_STRUCT_DIRENT
		266	#define EIO_STRUCT_DIRENT struct dirent
		267	#endif
		268
		269	#endif
		270
		271	#if HAVE_UTIMES
90	# include <utime.h>	272	# include <utime.h>
91	# include <signal.h>
92	# include <dirent.h>
93
94	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
95	# include <sys/mman.h>
96	#endif
97
98	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
99	# if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
100	# define _DIRENT_HAVE_D_TYPE /* sigh */
101	# define D_INO(de) (de)->d_fileno
102	# define D_NAMLEN(de) (de)->d_namlen
103	# elif __linux || defined d_ino || _XOPEN_SOURCE >= 600
104	# define D_INO(de) (de)->d_ino
105	# endif	273	#endif
106		274
107	#ifdef _D_EXACT_NAMLEN	275	#if HAVE_SYS_SYSCALL_H
108	# undef D_NAMLEN	276	# include <sys/syscall.h>
109	# define D_NAMLEN(de) _D_EXACT_NAMLEN (de)
110	#endif
111
112	# ifdef _DIRENT_HAVE_D_TYPE
113	# define D_TYPE(de) (de)->d_type
114	# endif	277	#endif
115		278
116	# ifndef EIO_STRUCT_DIRENT	279	#if HAVE_SYS_PRCTL_H
117	# define EIO_STRUCT_DIRENT struct dirent	280	# include <sys/prctl.h>
118	# endif
119
120	#endif	281	#endif
121		282
122	#if HAVE_SENDFILE	283	#if HAVE_SENDFILE
123	# if __linux	284	# if __linux
124	# include <sys/sendfile.h>	285	# include <sys/sendfile.h>
…		…
139	#endif	300	#endif
140	#ifndef D_INO	301	#ifndef D_INO
141	# define D_INO(de) 0	302	# define D_INO(de) 0
142	#endif	303	#endif
143	#ifndef D_NAMLEN	304	#ifndef D_NAMLEN
144	# define D_NAMLEN(de) strlen ((de)->d_name)	305	# define D_NAMLEN(entp) strlen (D_NAME (entp))
145	#endif	306	#endif
146		307
147	/* used for struct dirent, AIX doesn't provide it */	308	/* used for struct dirent, AIX doesn't provide it */
148	#ifndef NAME_MAX	309	#ifndef NAME_MAX
149	# define NAME_MAX 4096	310	# define NAME_MAX 4096
…		…
156		317
157	/* buffer size for various temporary buffers */	318	/* buffer size for various temporary buffers */
158	#define EIO_BUFSIZE 65536	319	#define EIO_BUFSIZE 65536
159		320
160	#define dBUF \	321	#define dBUF \
161	char *eio_buf; \
162	ETP_WORKER_LOCK (self); \
163	self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \	322	char *eio_buf = malloc (EIO_BUFSIZE); \
164	ETP_WORKER_UNLOCK (self); \
165	errno = ENOMEM; \	323	errno = ENOMEM; \
166	if (!eio_buf) \	324	if (!eio_buf) \
167	return -1;	325	return -1
		326
		327	#define FUBd \
		328	free (eio_buf)
168		329
169	#define EIO_TICKS ((1000000 + 1023) >> 10)	330	#define EIO_TICKS ((1000000 + 1023) >> 10)
		331
		332	/*****************************************************************************/
		333
		334	struct tmpbuf
		335	{
		336	void *ptr;
		337	int len;
		338	};
		339
		340	static void *
		341	tmpbuf_get (struct tmpbuf *buf, int len)
		342	{
		343	if (buf->len < len)
		344	{
		345	free (buf->ptr);
		346	buf->ptr = malloc (buf->len = len);
		347	}
		348
		349	return buf->ptr;
		350	}
		351
		352	struct tmpbuf;
		353
		354	#if _POSIX_VERSION >= 200809L
		355	#define HAVE_AT 1
		356	#define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD)
		357	#ifndef O_SEARCH
		358	#define O_SEARCH O_RDONLY
		359	#endif
		360	#else
		361	#define HAVE_AT 0
		362	static const char *wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path);
		363	#endif
		364
		365	struct eio_pwd
		366	{
		367	#if HAVE_AT
		368	int fd;
		369	#endif
		370	int len;
		371	char str[1]; /* actually, a 0-terminated canonical path */
		372	};
		373
		374	/*****************************************************************************/
170		375
171	#define ETP_PRI_MIN EIO_PRI_MIN	376	#define ETP_PRI_MIN EIO_PRI_MIN
172	#define ETP_PRI_MAX EIO_PRI_MAX	377	#define ETP_PRI_MAX EIO_PRI_MAX
173		378
174	struct etp_worker;	379	struct etp_worker;
…		…
178	static int eio_finish (eio_req *req);	383	static int eio_finish (eio_req *req);
179	#define ETP_FINISH(req) eio_finish (req)	384	#define ETP_FINISH(req) eio_finish (req)
180	static void eio_execute (struct etp_worker *self, eio_req *req);	385	static void eio_execute (struct etp_worker *self, eio_req *req);
181	#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)	386	#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)
182		387
183	#define ETP_WORKER_CLEAR(req) \
184	if (wrk->dbuf) \
185	{ \
186	free (wrk->dbuf); \
187	wrk->dbuf = 0; \
188	} \
189	\
190	if (wrk->dirp) \
191	{ \
192	closedir (wrk->dirp); \
193	wrk->dirp = 0; \
194	}
195
196	#define ETP_WORKER_COMMON \
197	void *dbuf; \
198	DIR *dirp;
199
200	/*****************************************************************************/	388	/*****************************************************************************/
201		389
202	#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)	390	#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)
203		391
204	/* calculate time difference in ~1/EIO_TICKS of a second */	392	/* calculate time difference in ~1/EIO_TICKS of a second */
…		…
215	static void (*done_poll_cb) (void);	403	static void (*done_poll_cb) (void);
216		404
217	static unsigned int max_poll_time; /* reslock */	405	static unsigned int max_poll_time; /* reslock */
218	static unsigned int max_poll_reqs; /* reslock */	406	static unsigned int max_poll_reqs; /* reslock */
219		407
220	static volatile unsigned int nreqs; /* reqlock */	408	static unsigned int nreqs; /* reqlock */
221	static volatile unsigned int nready; /* reqlock */	409	static unsigned int nready; /* reqlock */
222	static volatile unsigned int npending; /* reqlock */	410	static unsigned int npending; /* reqlock */
223	static volatile unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */	411	static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */
224	static volatile unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */	412	static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */
225		413
226	static xmutex_t wrklock;	414	static xmutex_t wrklock;
227	static xmutex_t reslock;	415	static xmutex_t reslock;
228	static xmutex_t reqlock;	416	static xmutex_t reqlock;
229	static xcond_t reqwait;	417	static xcond_t reqwait;
230		418
231	#if !HAVE_PREADWRITE
232	/*
233	* make our pread/pwrite emulation safe against themselves, but not against
234	* normal read/write by using a mutex. slows down execution a lot,
235	* but that's your problem, not mine.
236	*/
237	static xmutex_t preadwritelock = X_MUTEX_INIT;
238	#endif
239
240	typedef struct etp_worker	419	typedef struct etp_worker
241	{	420	{
		421	struct tmpbuf tmpbuf;
		422
242	/* locked by wrklock */	423	/* locked by wrklock */
243	struct etp_worker *prev, *next;	424	struct etp_worker *prev, *next;
244		425
245	xthread_t tid;	426	xthread_t tid;
246		427
247	/* locked by reslock, reqlock or wrklock */	428	#ifdef ETP_WORKER_COMMON
248	ETP_REQ *req; /* currently processed request */
249
250	ETP_WORKER_COMMON	429	ETP_WORKER_COMMON
		430	#endif
251	} etp_worker;	431	} etp_worker;
252		432
253	static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */	433	static etp_worker wrk_first; /* NOT etp */
254		434
255	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)	435	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
256	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)	436	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
257		437
258	/* worker threads management */	438	/* worker threads management */
259		439
260	static void ecb_cold	440	static void
261	etp_worker_clear (etp_worker *wrk)	441	etp_worker_clear (etp_worker *wrk)
262	{	442	{
263	ETP_WORKER_CLEAR (wrk);
264	}	443	}
265		444
266	static void ecb_cold	445	static void ecb_cold
267	etp_worker_free (etp_worker *wrk)	446	etp_worker_free (etp_worker *wrk)
268	{	447	{
		448	free (wrk->tmpbuf.ptr);
		449
269	wrk->next->prev = wrk->prev;	450	wrk->next->prev = wrk->prev;
270	wrk->prev->next = wrk->next;	451	wrk->prev->next = wrk->next;
271		452
272	free (wrk);	453	free (wrk);
273	}	454	}
…		…
329	} etp_reqq;	510	} etp_reqq;
330		511
331	static etp_reqq req_queue;	512	static etp_reqq req_queue;
332	static etp_reqq res_queue;	513	static etp_reqq res_queue;
333		514
		515	static void ecb_noinline ecb_cold
		516	reqq_init (etp_reqq *q)
		517	{
		518	int pri;
		519
		520	for (pri = 0; pri < ETP_NUM_PRI; ++pri)
		521	q->qs[pri] = q->qe[pri] = 0;
		522
		523	q->size = 0;
		524	}
		525
334	static int ecb_noinline	526	static int ecb_noinline
335	reqq_push (etp_reqq *q, ETP_REQ *req)	527	reqq_push (etp_reqq *q, ETP_REQ *req)
336	{	528	{
337	int pri = req->pri;	529	int pri = req->pri;
338	req->next = 0;	530	req->next = 0;
…		…
372	}	564	}
373		565
374	abort ();	566	abort ();
375	}	567	}
376		568
377	static void ecb_cold	569	static int ecb_cold
378	etp_thread_init (void)	570	etp_init (void (*want_poll)(void), void (*done_poll)(void))
379	{	571	{
380	X_MUTEX_CREATE (wrklock);	572	X_MUTEX_CREATE (wrklock);
381	X_MUTEX_CREATE (reslock);	573	X_MUTEX_CREATE (reslock);
382	X_MUTEX_CREATE (reqlock);	574	X_MUTEX_CREATE (reqlock);
383	X_COND_CREATE (reqwait);	575	X_COND_CREATE (reqwait);
384	}
385		576
386	static void ecb_cold	577	reqq_init (&req_queue);
387	etp_atfork_prepare (void)	578	reqq_init (&res_queue);
388	{
389	X_LOCK (wrklock);
390	X_LOCK (reqlock);
391	X_LOCK (reslock);
392	#if !HAVE_PREADWRITE
393	X_LOCK (preadwritelock);
394	#endif
395	}
396		579
397	static void ecb_cold	580	wrk_first.next =
398	etp_atfork_parent (void)	581	wrk_first.prev = &wrk_first;
399	{
400	#if !HAVE_PREADWRITE
401	X_UNLOCK (preadwritelock);
402	#endif
403	X_UNLOCK (reslock);
404	X_UNLOCK (reqlock);
405	X_UNLOCK (wrklock);
406	}
407
408	static void ecb_cold
409	etp_atfork_child (void)
410	{
411	ETP_REQ *prv;
412
413	while ((prv = reqq_shift (&req_queue)))
414	ETP_DESTROY (prv);
415
416	while ((prv = reqq_shift (&res_queue)))
417	ETP_DESTROY (prv);
418
419	while (wrk_first.next != &wrk_first)
420	{
421	etp_worker *wrk = wrk_first.next;
422
423	if (wrk->req)
424	ETP_DESTROY (wrk->req);
425
426	etp_worker_clear (wrk);
427	etp_worker_free (wrk);
428	}
429		582
430	started = 0;	583	started = 0;
431	idle = 0;	584	idle = 0;
432	nreqs = 0;	585	nreqs = 0;
433	nready = 0;	586	nready = 0;
434	npending = 0;	587	npending = 0;
435
436	etp_thread_init ();
437	}
438
439	static void ecb_cold
440	etp_once_init (void)
441	{
442	etp_thread_init ();
443	X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child);
444	}
445
446	static int ecb_cold
447	etp_init (void (*want_poll)(void), void (*done_poll)(void))
448	{
449	static pthread_once_t doinit = PTHREAD_ONCE_INIT;
450
451	pthread_once (&doinit, etp_once_init);
452		588
453	want_poll_cb = want_poll;	589	want_poll_cb = want_poll;
454	done_poll_cb = done_poll;	590	done_poll_cb = done_poll;
455		591
456	return 0;	592	return 0;
…		…
496	}	632	}
497		633
498	static void ecb_cold	634	static void ecb_cold
499	etp_end_thread (void)	635	etp_end_thread (void)
500	{	636	{
501	eio_req *req = calloc (1, sizeof (eio_req));	637	eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */
502		638
503	req->type = -1;	639	req->type = -1;
504	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;	640	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
505		641
506	X_LOCK (reqlock);	642	X_LOCK (reqlock);
…		…
583	}	719	}
584		720
585	static void	721	static void
586	etp_cancel (ETP_REQ *req)	722	etp_cancel (ETP_REQ *req)
587	{	723	{
588	X_LOCK (wrklock);	724	req->cancelled = 1;
589	req->flags |= EIO_FLAG_CANCELLED;
590	X_UNLOCK (wrklock);
591		725
592	eio_grp_cancel (req);	726	eio_grp_cancel (req);
593	}	727	}
594		728
595	static void	729	static void
…		…
711	return eio_finish (grp);	845	return eio_finish (grp);
712	else	846	else
713	return 0;	847	return 0;
714	}	848	}
715		849
716	void	850	static void
717	eio_destroy (eio_req *req)	851	eio_destroy (eio_req *req)
718	{	852	{
719	if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);	853	if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);
720	if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);	854	if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);
721		855
…		…
835	}	969	}
836		970
837	/*****************************************************************************/	971	/*****************************************************************************/
838	/* work around various missing functions */	972	/* work around various missing functions */
839		973
840	#if !HAVE_PREADWRITE
841	# undef pread
842	# undef pwrite
843	# define pread eio__pread
844	# define pwrite eio__pwrite
845
846	static ssize_t
847	eio__pread (int fd, void *buf, size_t count, off_t offset)
848	{
849	ssize_t res;
850	off_t ooffset;
851
852	X_LOCK (preadwritelock);
853	ooffset = lseek (fd, 0, SEEK_CUR);
854	lseek (fd, offset, SEEK_SET);
855	res = read (fd, buf, count);
856	lseek (fd, ooffset, SEEK_SET);
857	X_UNLOCK (preadwritelock);
858
859	return res;
860	}
861
862	static ssize_t
863	eio__pwrite (int fd, void *buf, size_t count, off_t offset)
864	{
865	ssize_t res;
866	off_t ooffset;
867
868	X_LOCK (preadwritelock);
869	ooffset = lseek (fd, 0, SEEK_CUR);
870	lseek (fd, offset, SEEK_SET);
871	res = write (fd, buf, count);
872	lseek (fd, ooffset, SEEK_SET);
873	X_UNLOCK (preadwritelock);
874
875	return res;
876	}
877	#endif
878
879	#ifndef HAVE_UTIMES	974	#ifndef HAVE_UTIMES
880		975
881	# undef utimes	976	# undef utimes
882	# define utimes(path,times) eio__utimes (path, times)	977	# define utimes(path,times) eio__utimes (path, times)
883		978
…		…
915		1010
916	#if !HAVE_FDATASYNC	1011	#if !HAVE_FDATASYNC
917	# undef fdatasync	1012	# undef fdatasync
918	# define fdatasync(fd) fsync (fd)	1013	# define fdatasync(fd) fsync (fd)
919	#endif	1014	#endif
		1015
		1016	static int
		1017	eio__syncfs (int fd)
		1018	{
		1019	int res;
		1020
		1021	#if HAVE_SYS_SYNCFS
		1022	res = (int)syscall (__NR_syncfs, (int)(fd));
		1023	#else
		1024	res = EIO_ENOSYS ();
		1025	#endif
		1026
		1027	if (res < 0 && errno == ENOSYS && fd >= 0)
		1028	sync ();
		1029
		1030	return res;
		1031	}
920		1032
921	/* sync_file_range always needs emulation */	1033	/* sync_file_range always needs emulation */
922	static int	1034	static int
923	eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)	1035	eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)
924	{	1036	{
…		…
944	/* even though we could play tricks with the flags, it's better to always	1056	/* even though we could play tricks with the flags, it's better to always
945	* call fdatasync, as that matches the expectation of its users best */	1057	* call fdatasync, as that matches the expectation of its users best */
946	return fdatasync (fd);	1058	return fdatasync (fd);
947	}	1059	}
948		1060
		1061	static int
		1062	eio__fallocate (int fd, int mode, off_t offset, size_t len)
		1063	{
		1064	#if HAVE_LINUX_FALLOCATE
		1065	return fallocate (fd, mode, offset, len);
		1066	#else
		1067	return EIO_ENOSYS ();
		1068	#endif
		1069	}
		1070
949	#if !HAVE_READAHEAD	1071	#if !HAVE_READAHEAD
950	# undef readahead	1072	# undef readahead
951	# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)	1073	# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
952		1074
953	static ssize_t	1075	static eio_ssize_t
954	eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)	1076	eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)
955	{	1077	{
956	size_t todo = count;	1078	size_t todo = count;
957	dBUF;	1079	dBUF;
958		1080
…		…
963	pread (fd, eio_buf, len, offset);	1085	pread (fd, eio_buf, len, offset);
964	offset += len;	1086	offset += len;
965	todo -= len;	1087	todo -= len;
966	}	1088	}
967		1089
968	errno = 0;	1090	FUBd;
		1091
		1092	/* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */
		1093	/* but not for e.g. EIO or eof, so we also never fail */
969	return count;	1094	return 0;
970	}	1095	}
971		1096
972	#endif	1097	#endif
973		1098
974	/* sendfile always needs emulation */	1099	/* sendfile always needs emulation */
975	static ssize_t	1100	static eio_ssize_t
976	eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self)	1101	eio__sendfile (int ofd, int ifd, off_t offset, size_t count)
977	{	1102	{
978	ssize_t written = 0;	1103	eio_ssize_t written = 0;
979	ssize_t res;	1104	eio_ssize_t res;
980		1105
981	if (!count)	1106	if (!count)
982	return 0;	1107	return 0;
983		1108
984	for (;;)	1109	for (;;)
985	{	1110	{
		1111	#ifdef __APPLE__
		1112	# undef HAVE_SENDFILE /* broken, as everything on os x */
		1113	#endif
986	#if HAVE_SENDFILE	1114	#if HAVE_SENDFILE
987	# if __linux	1115	# if __linux
988	off_t soffset = offset;	1116	off_t soffset = offset;
989	res = sendfile (ofd, ifd, &soffset, count);	1117	res = sendfile (ofd, ifd, &soffset, count);
990		1118
…		…
1006		1134
1007	/* according to source inspection, this is correct, and useful behaviour */	1135	/* according to source inspection, this is correct, and useful behaviour */
1008	if (sbytes)	1136	if (sbytes)
1009	res = sbytes;	1137	res = sbytes;
1010		1138
1011	# elif defined (__APPLE__) && 0 /* broken, as everything on os x */	1139	# elif defined __APPLE__
1012	off_t sbytes = count;	1140	off_t sbytes = count;
1013	res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);	1141	res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);
1014		1142
1015	/* according to the manpage, sbytes is always valid */	1143	/* according to the manpage, sbytes is always valid */
1016	if (sbytes)	1144	if (sbytes)
…		…
1033	if (res < 0 && sbytes)	1161	if (res < 0 && sbytes)
1034	res = sbytes;	1162	res = sbytes;
1035		1163
1036	# endif	1164	# endif
1037		1165
1038	#elif defined (_WIN32)	1166	#elif defined (_WIN32) && 0
1039	/* does not work, just for documentation of what would need to be done */	1167	/* does not work, just for documentation of what would need to be done */
1040	/* actually, cannot be done like this, as TransmitFile changes the file offset, */	1168	/* actually, cannot be done like this, as TransmitFile changes the file offset, */
1041	/* libeio guarantees that the file offset does not change, and windows */	1169	/* libeio guarantees that the file offset does not change, and windows */
1042	/* has no way to get an independent handle to the same file description */	1170	/* has no way to get an independent handle to the same file description */
1043	HANDLE h = TO_SOCKET (ifd);	1171	HANDLE h = TO_SOCKET (ifd);
1044	SetFilePointer (h, offset, 0, FILE_BEGIN);	1172	SetFilePointer (h, offset, 0, FILE_BEGIN);
1045	res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);	1173	res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);
1046		1174
1047	#else	1175	#else
1048	res = -1;	1176	res = EIO_ENOSYS ();
1049	errno = ENOSYS;
1050	#endif	1177	#endif
1051		1178
1052	/* we assume sendfile can copy at least 128mb in one go */	1179	/* we assume sendfile can copy at least 128mb in one go */
1053	if (res <= 128 * 1024 * 1024)	1180	if (res <= 128 * 1024 * 1024)
1054	{	1181	{
…		…
1076	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK	1203	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1077	/* BSDs */	1204	/* BSDs */
1078	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */	1205	#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */
1079	|| errno == ENOTSUP	1206	|| errno == ENOTSUP
1080	#endif	1207	#endif
		1208	#ifdef EOPNOTSUPP /* windows */
1081	|| errno == EOPNOTSUPP /* BSDs */	1209	|| errno == EOPNOTSUPP /* BSDs */
		1210	#endif
1082	#if __solaris	1211	#if __solaris
1083	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE	1212	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084	#endif	1213	#endif
1085	)	1214	)
1086	)	1215	)
…		…
1090		1219
1091	res = 0;	1220	res = 0;
1092		1221
1093	while (count)	1222	while (count)
1094	{	1223	{
1095	ssize_t cnt;	1224	eio_ssize_t cnt;
1096		1225
1097	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);	1226	cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);
1098		1227
1099	if (cnt <= 0)	1228	if (cnt <= 0)
1100	{	1229	{
…		…
1112		1241
1113	offset += cnt;	1242	offset += cnt;
1114	res += cnt;	1243	res += cnt;
1115	count -= cnt;	1244	count -= cnt;
1116	}	1245	}
		1246
		1247	FUBd;
1117	}	1248	}
1118		1249
1119	return res;	1250	return res;
1120	}	1251	}
1121		1252
…		…
1148	/* round up length */	1279	/* round up length */
1149	*length = (*length + mask) & ~mask;	1280	*length = (*length + mask) & ~mask;
1150	}	1281	}
1151		1282
1152	#if !_POSIX_MEMLOCK	1283	#if !_POSIX_MEMLOCK
1153	# define eio__mlockall(a) ((errno = ENOSYS), -1)	1284	# define eio__mlockall(a) EIO_ENOSYS ()
1154	#else	1285	#else
1155		1286
1156	static int	1287	static int
1157	eio__mlockall (int flags)	1288	eio__mlockall (int flags)
1158	{	1289	{
…		…
1172	return mlockall (flags);	1303	return mlockall (flags);
1173	}	1304	}
1174	#endif	1305	#endif
1175		1306
1176	#if !_POSIX_MEMLOCK_RANGE	1307	#if !_POSIX_MEMLOCK_RANGE
1177	# define eio__mlock(a,b) ((errno = ENOSYS), -1)	1308	# define eio__mlock(a,b) EIO_ENOSYS ()
1178	#else	1309	#else
1179		1310
1180	static int	1311	static int
1181	eio__mlock (void *addr, size_t length)	1312	eio__mlock (void *addr, size_t length)
1182	{	1313	{
…		…
1186	}	1317	}
1187		1318
1188	#endif	1319	#endif
1189		1320
1190	#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO)	1321	#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO)
1191	# define eio__msync(a,b,c) ((errno = ENOSYS), -1)	1322	# define eio__msync(a,b,c) EIO_ENOSYS ()
1192	#else	1323	#else
1193		1324
1194	static int	1325	static int
1195	eio__msync (void *mem, size_t len, int flags)	1326	eio__msync (void *mem, size_t len, int flags)
1196	{	1327	{
…		…
1237		1368
1238	/*****************************************************************************/	1369	/*****************************************************************************/
1239	/* requests implemented outside eio_execute, because they are so large */	1370	/* requests implemented outside eio_execute, because they are so large */
1240		1371
1241	static void	1372	static void
1242	eio__realpath (eio_req *req, etp_worker *self)	1373	eio__lseek (eio_req *req)
1243	{	1374	{
1244	char *rel = req->ptr1;	1375	/* this usually gets optimised away completely, or your compiler sucks, */
		1376	/* or the whence constants really are not 0, 1, 2 */
		1377	int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET
		1378	: req->int2 == EIO_SEEK_CUR ? SEEK_CUR
		1379	: req->int2 == EIO_SEEK_END ? SEEK_END
		1380	: req->int2;
		1381
		1382	req->offs = lseek (req->int1, req->offs, whence);
		1383	req->result = req->offs == (off_t)-1 ? -1 : 0;
		1384	}
		1385
		1386	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
		1387	static int
		1388	eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
		1389	{
		1390	const char *rel = path;
1245	char *res;	1391	char *res;
1246	char *tmp1, *tmp2;	1392	char *tmp1, *tmp2;
1247	#if SYMLOOP_MAX > 32	1393	#if SYMLOOP_MAX > 32
1248	int symlinks = SYMLOOP_MAX;	1394	int symlinks = SYMLOOP_MAX;
1249	#else	1395	#else
1250	int symlinks = 32;	1396	int symlinks = 32;
1251	#endif	1397	#endif
1252		1398
1253	req->result = -1;
1254
1255	errno = EINVAL;	1399	errno = EINVAL;
1256	if (!rel)	1400	if (!rel)
1257	return;	1401	return -1;
1258		1402
1259	errno = ENOENT;	1403	errno = ENOENT;
1260	if (!*rel)	1404	if (!*rel)
1261	return;	1405	return -1;
1262		1406
1263	if (!req->ptr2)	1407	res = tmpbuf_get (tmpbuf, PATH_MAX * 3);
1264	{
1265	X_LOCK (wrklock);
1266	req->flags |= EIO_FLAG_PTR2_FREE;
1267	X_UNLOCK (wrklock);
1268	req->ptr2 = malloc (PATH_MAX * 3);
1269
1270	errno = ENOMEM;
1271	if (!req->ptr2)
1272	return;
1273	}
1274
1275	res = req->ptr2;
1276	tmp1 = res + PATH_MAX;	1408	tmp1 = res + PATH_MAX;
1277	tmp2 = tmp1 + PATH_MAX;	1409	tmp2 = tmp1 + PATH_MAX;
1278		1410
1279	#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 */
1280	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)	1412	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
…		…
1299	#endif	1431	#endif
1300	#endif	1432	#endif
1301		1433
1302	if (*rel != '/')	1434	if (*rel != '/')
1303	{	1435	{
		1436	int len;
		1437
		1438	errno = ENOENT;
		1439	if (wd == EIO_INVALID_WD)
		1440	return -1;
		1441
		1442	if (wd == EIO_CWD)
		1443	{
1304	if (!getcwd (res, PATH_MAX))	1444	if (!getcwd (res, PATH_MAX))
1305	return;	1445	return -1;
		1446
		1447	len = strlen (res);
		1448	}
		1449	else
		1450	memcpy (res, wd->str, len = wd->len);
1306		1451
1307	if (res [1]) /* only use if not / */	1452	if (res [1]) /* only use if not / */
1308	res += strlen (res);	1453	res += len;
1309	}	1454	}
1310		1455
1311	while (*rel)	1456	while (*rel)
1312	{	1457	{
1313	ssize_t len, linklen;	1458	eio_ssize_t len, linklen;
1314	char *beg = rel;	1459	const char *beg = rel;
1315		1460
1316	while (*rel && *rel != '/')	1461	while (*rel && *rel != '/')
1317	++rel;	1462	++rel;
1318		1463
1319	len = rel - beg;	1464	len = rel - beg;
…		…
1331		1476
1332	if (beg [1] == '.' && len == 2)	1477	if (beg [1] == '.' && len == 2)
1333	{	1478	{
1334	/* .. - back up one component, if possible */	1479	/* .. - back up one component, if possible */
1335		1480
1336	while (res != req->ptr2)	1481	while (res != tmpbuf->ptr)
1337	if (*--res == '/')	1482	if (*--res == '/')
1338	break;	1483	break;
1339		1484
1340	continue;	1485	continue;
1341	}	1486	}
1342	}	1487	}
1343		1488
1344	errno = ENAMETOOLONG;	1489	errno = ENAMETOOLONG;
1345	if (res + 1 + len + 1 >= tmp1)	1490	if (res + 1 + len + 1 >= tmp1)
1346	return;	1491	return -1;
1347		1492
1348	/* copy one component */	1493	/* copy one component */
1349	*res = '/';	1494	*res = '/';
1350	memcpy (res + 1, beg, len);	1495	memcpy (res + 1, beg, len);
1351		1496
1352	/* zero-terminate, for readlink */	1497	/* zero-terminate, for readlink */
1353	res [len + 1] = 0;	1498	res [len + 1] = 0;
1354		1499
1355	/* now check if it's a symlink */	1500	/* now check if it's a symlink */
1356	linklen = readlink (req->ptr2, tmp1, PATH_MAX);	1501	linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX);
1357		1502
1358	if (linklen < 0)	1503	if (linklen < 0)
1359	{	1504	{
1360	if (errno != EINVAL)	1505	if (errno != EINVAL)
1361	return;	1506	return -1;
1362		1507
1363	/* it's a normal directory. hopefully */	1508	/* it's a normal directory. hopefully */
1364	res += len + 1;	1509	res += len + 1;
1365	}	1510	}
1366	else	1511	else
…		…
1368	/* yay, it was a symlink - build new path in tmp2 */	1513	/* yay, it was a symlink - build new path in tmp2 */
1369	int rellen = strlen (rel);	1514	int rellen = strlen (rel);
1370		1515
1371	errno = ENAMETOOLONG;	1516	errno = ENAMETOOLONG;
1372	if (linklen + 1 + rellen >= PATH_MAX)	1517	if (linklen + 1 + rellen >= PATH_MAX)
1373	return;	1518	return -1;
1374		1519
1375	errno = ELOOP;	1520	errno = ELOOP;
1376	if (!--symlinks)	1521	if (!--symlinks)
1377	return;	1522	return -1;
1378		1523
1379	if (*tmp1 == '/')	1524	if (*tmp1 == '/')
1380	res = req->ptr2; /* symlink resolves to an absolute path */	1525	res = tmpbuf->ptr; /* symlink resolves to an absolute path */
1381		1526
1382	/* 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 */
1383	memmove (tmp2 + linklen + 1, rel, rellen + 1);	1528	memmove (tmp2 + linklen + 1, rel, rellen + 1);
1384	tmp2 [linklen] = '/';	1529	tmp2 [linklen] = '/';
1385	memcpy (tmp2, tmp1, linklen);	1530	memcpy (tmp2, tmp1, linklen);
…		…
1387	rel = tmp2;	1532	rel = tmp2;
1388	}	1533	}
1389	}	1534	}
1390		1535
1391	/* special case for the lone root path */	1536	/* special case for the lone root path */
1392	if (res == req->ptr2)	1537	if (res == tmpbuf->ptr)
1393	*res++ = '/';	1538	*res++ = '/';
1394		1539
1395	req->result = res - (char *)req->ptr2;	1540	return res - (char *)tmpbuf->ptr;
1396
1397	done:
1398	req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */
1399	}	1541	}
1400		1542
1401	static signed char	1543	static signed char
1402	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)	1544	eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)
1403	{	1545	{
…		…
1411		1553
1412	#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 */
1413	#define EIO_SORT_FAST 60 /* when to only use insertion sort */	1555	#define EIO_SORT_FAST 60 /* when to only use insertion sort */
1414		1556
1415	static void	1557	static void
1416	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)
1417	{	1559	{
1418	unsigned char bits [9 + sizeof (ino_t) * 8];	1560	unsigned char bits [9 + sizeof (eio_ino_t) * 8];
1419	unsigned char *bit = bits;	1561	unsigned char *bit = bits;
1420		1562
1421	assert (CHAR_BIT == 8);	1563	assert (CHAR_BIT == 8);
1422	assert (sizeof (eio_dirent) * 8 < 256);	1564	assert (sizeof (eio_dirent) * 8 < 256);
1423	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */	1565	assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */
…		…
1425		1567
1426	if (size <= EIO_SORT_FAST)	1568	if (size <= EIO_SORT_FAST)
1427	return;	1569	return;
1428		1570
1429	/* 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 */
1430	/* 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 */
1431	/* inode_bits must contain all inodes ORed together */	1573	/* inode_bits must contain all inodes ORed together */
1432	/* 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 */
1433	{	1575	{
1434	ino_t endianness;	1576	eio_ino_t endianness;
1435	int i, j;	1577	int i, j;
1436		1578
1437	/* 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" */
1438	for (i = 0; i < sizeof (ino_t); ++i)	1580	for (i = 0; i < sizeof (eio_ino_t); ++i)
1439	((unsigned char *)&endianness)[i] = i;	1581	((unsigned char *)&endianness)[i] = i;
1440		1582
1441	*bit++ = 0;	1583	*bit++ = 0;
1442		1584
1443	for (i = 0; i < sizeof (ino_t); ++i)	1585	for (i = 0; i < sizeof (eio_ino_t); ++i)
1444	{	1586	{
1445	/* shifting off the byte offsets out of "endianness" */	1587	/* shifting off the byte offsets out of "endianness" */
1446	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;	1588	int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;
1447	endianness >>= 8;	1589	endianness >>= 8;
1448		1590
1449	for (j = 0; j < 8; ++j)	1591	for (j = 0; j < 8; ++j)
1450	if (inode_bits & (((ino_t)1) << (i * 8 + j)))	1592	if (inode_bits & (((eio_ino_t)1) << (i * 8 + j)))
1451	*bit++ = offs + j;	1593	*bit++ = offs + j;
1452	}	1594	}
1453		1595
1454	for (j = 0; j < 8; ++j)	1596	for (j = 0; j < 8; ++j)
1455	if (score_bits & (1 << j))	1597	if (score_bits & (1 << j))
1456	*bit++ = offsetof (eio_dirent, score) * 8 + j;	1598	*bit++ = offsetof (eio_dirent, score) * 8 + j;
1457	}	1599	}
1458		1600
1459	/* now actually do the sorting (a variant of MSD radix sort) */	1601	/* now actually do the sorting (a variant of MSD radix sort) */
1460	{	1602	{
1461	eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base;	1603	eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base;
1462	eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end;	1604	eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end;
1463	unsigned char *bit_stk [9 + sizeof (ino_t) * 8];	1605	unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8];
1464	int stk_idx = 0;	1606	int stk_idx = 0;
1465		1607
1466	base_stk [stk_idx] = dents;	1608	base_stk [stk_idx] = dents;
1467	end_stk [stk_idx] = dents + size;	1609	end_stk [stk_idx] = dents + size;
1468	bit_stk [stk_idx] = bit - 1;	1610	bit_stk [stk_idx] = bit - 1;
…		…
1547	}	1689	}
1548	}	1690	}
1549	}	1691	}
1550		1692
1551	static void	1693	static void
1552	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)
1553	{	1695	{
1554	if (size <= 1)	1696	if (size <= 1)
1555	return; /* our insertion sort relies on size > 0 */	1697	return; /* our insertion sort relies on size > 0 */
1556		1698
1557	/* 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 */
…		…
1565		1707
1566	/* read a full directory */	1708	/* read a full directory */
1567	static void	1709	static void
1568	eio__scandir (eio_req *req, etp_worker *self)	1710	eio__scandir (eio_req *req, etp_worker *self)
1569	{	1711	{
1570	DIR *dirp;
1571	EIO_STRUCT_DIRENT *entp;
1572	char *name, *names;	1712	char *name, *names;
1573	int namesalloc = 4096;	1713	int namesalloc = 4096 - sizeof (void *) * 4;
1574	int namesoffs = 0;	1714	int namesoffs = 0;
1575	int flags = req->int1;	1715	int flags = req->int1;
1576	eio_dirent *dents = 0;	1716	eio_dirent *dents = 0;
1577	int dentalloc = 128;	1717	int dentalloc = 128;
1578	int dentoffs = 0;	1718	int dentoffs = 0;
1579	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
1580		1727
1581	req->result = -1;	1728	req->result = -1;
1582		1729
1583	if (!(flags & EIO_READDIR_DENTS))	1730	if (!(flags & EIO_READDIR_DENTS))
1584	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);	1731	flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);
1585		1732
1586	X_LOCK (wrklock);	1733	#ifdef _WIN32
1587	/* 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
1588	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
1589		1801
1590	if (req->flags & EIO_FLAG_PTR1_FREE)	1802	if (req->flags & EIO_FLAG_PTR1_FREE)
1591	free (req->ptr1);	1803	free (req->ptr1);
1592		1804
1593	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;	1805	req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;
1594	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;	1806	req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
1595	req->ptr2 = names = malloc (namesalloc);	1807	req->ptr2 = names = malloc (namesalloc);
1596	X_UNLOCK (wrklock);
1597		1808
1598	if (dirp && names && (!flags || dents))	1809	if (!names || (flags && !dents))
		1810	return;
		1811
1599	for (;;)	1812	for (;;)
1600	{	1813	{
		1814	int done;
		1815
		1816	#ifdef _WIN32
		1817	done = !dirp;
		1818	#else
1601	errno = 0;	1819	errno = 0;
1602	entp = readdir (dirp);	1820	entp = readdir (dirp);
		1821	done = !entp;
		1822	#endif
1603		1823
1604	if (!entp)	1824	if (done)
1605	{	1825	{
		1826	#ifndef _WIN32
		1827	int old_errno = errno;
		1828	closedir (dirp);
		1829	errno = old_errno;
		1830
1606	if (errno)	1831	if (errno)
1607	break;	1832	break;
		1833	#endif
1608		1834
1609	/* sort etc. */	1835	/* sort etc. */
1610	req->int1 = flags;	1836	req->int1 = flags;
1611	req->result = dentoffs;	1837	req->result = dentoffs;
1612		1838
1613	if (flags & EIO_READDIR_STAT_ORDER)	1839	if (flags & EIO_READDIR_STAT_ORDER)
1614	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);
1615	else if (flags & EIO_READDIR_DIRS_FIRST)	1841	else if (flags & EIO_READDIR_DIRS_FIRST)
1616	if (flags & EIO_READDIR_FOUND_UNKNOWN)	1842	if (flags & EIO_READDIR_FOUND_UNKNOWN)
1617	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 */
1618	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))
1619	{	1895	{
1620	/* 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
1621	eio_dirent *oth = dents + dentoffs;	1903	ent = dents + dentoffs;
1622	eio_dirent *dir = dents;
1623		1904
1624	/* 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 */
1625	/* by walking from both sides and swapping if necessary */	1906	ent->namelen = len - 1;
1626	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)
1627	{	1967	{
1628	if (dir->type == EIO_DT_DIR)	1968	if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1629	++dir;	1969	ent->score = 1;
1630	else if ((--oth)->type == EIO_DT_DIR)	1970	else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1631	{	1971	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1632	eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
1633
1634	++dir;
1635	}
1636	}	1972	}
1637		1973	else if (ent->type == EIO_DT_DIR)
1638	/* now sort the dirs only (dirs all have the same score) */	1974	ent->score = 0;
1639	eio_dent_sort (dents, dir - dents, 0, inode_bits);
1640	}	1975	}
1641
1642	break;
1643	}
1644
1645	/* now add the entry to our list(s) */
1646	name = entp->d_name;
1647
1648	/* skip . and .. entries */
1649	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1650	{
1651	int len = D_NAMLEN (entp) + 1;
1652
1653	while (ecb_expect_false (namesoffs + len > namesalloc))
1654	{
1655	namesalloc *= 2;
1656	X_LOCK (wrklock);
1657	req->ptr2 = names = realloc (names, namesalloc);
1658	X_UNLOCK (wrklock);
1659
1660	if (!names)
1661	break;
1662	}	1976	}
1663		1977
1664	memcpy (names + namesoffs, name, len);
1665
1666	if (dents)
1667	{
1668	struct eio_dirent *ent;
1669
1670	if (ecb_expect_false (dentoffs == dentalloc))
1671	{
1672	dentalloc *= 2;
1673	X_LOCK (wrklock);
1674	req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
1675	X_UNLOCK (wrklock);
1676
1677	if (!dents)
1678	break;
1679	}
1680
1681	ent = dents + dentoffs;
1682
1683	ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1684	ent->namelen = len - 1;
1685	ent->inode = D_INO (entp);
1686
1687	inode_bits |= ent->inode;
1688
1689	switch (D_TYPE (entp))
1690	{
1691	default:
1692	ent->type = EIO_DT_UNKNOWN;
1693	flags |= EIO_READDIR_FOUND_UNKNOWN;
1694	break;
1695
1696	#ifdef DT_FIFO
1697	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1698	#endif
1699	#ifdef DT_CHR
1700	case DT_CHR: ent->type = EIO_DT_CHR; break;
1701	#endif
1702	#ifdef DT_MPC
1703	case DT_MPC: ent->type = EIO_DT_MPC; break;
1704	#endif
1705	#ifdef DT_DIR
1706	case DT_DIR: ent->type = EIO_DT_DIR; break;
1707	#endif
1708	#ifdef DT_NAM
1709	case DT_NAM: ent->type = EIO_DT_NAM; break;
1710	#endif
1711	#ifdef DT_BLK
1712	case DT_BLK: ent->type = EIO_DT_BLK; break;
1713	#endif
1714	#ifdef DT_MPB
1715	case DT_MPB: ent->type = EIO_DT_MPB; break;
1716	#endif
1717	#ifdef DT_REG
1718	case DT_REG: ent->type = EIO_DT_REG; break;
1719	#endif
1720	#ifdef DT_NWK
1721	case DT_NWK: ent->type = EIO_DT_NWK; break;
1722	#endif
1723	#ifdef DT_CMP
1724	case DT_CMP: ent->type = EIO_DT_CMP; break;
1725	#endif
1726	#ifdef DT_LNK
1727	case DT_LNK: ent->type = EIO_DT_LNK; break;
1728	#endif
1729	#ifdef DT_SOCK
1730	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
1731	#endif
1732	#ifdef DT_DOOR
1733	case DT_DOOR: ent->type = EIO_DT_DOOR; break;
1734	#endif
1735	#ifdef DT_WHT
1736	case DT_WHT: ent->type = EIO_DT_WHT; break;
1737	#endif
1738	}
1739
1740	ent->score = 7;
1741
1742	if (flags & EIO_READDIR_DIRS_FIRST)
1743	{
1744	if (ent->type == EIO_DT_UNKNOWN)
1745	{
1746	if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1747	ent->score = 1;
1748	else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */
1749	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1750	}
1751	else if (ent->type == EIO_DT_DIR)
1752	ent->score = 0;
1753	}
1754	}
1755
1756	namesoffs += len;	1978	namesoffs += len;
1757	++dentoffs;	1979	++dentoffs;
1758	}	1980	}
1759		1981
1760	if (EIO_CANCELLED (req))	1982	if (EIO_CANCELLED (req))
1761	{	1983	{
1762	errno = ECANCELED;	1984	errno = ECANCELED;
1763	break;	1985	break;
1764	}	1986	}
		1987
		1988	#ifdef _WIN32
		1989	if (!FindNextFile (dirp, &entp))
		1990	{
		1991	FindClose (dirp);
		1992	dirp = 0;
1765	}	1993	}
		1994	#endif
		1995	}
1766	}	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
1767		2119
1768	/*****************************************************************************/	2120	/*****************************************************************************/
1769		2121
1770	#define ALLOC(len) \	2122	#define ALLOC(len) \
1771	if (!req->ptr2) \	2123	if (!req->ptr2) \
…		…
1780	req->result = -1; \	2132	req->result = -1; \
1781	break; \	2133	break; \
1782	} \	2134	} \
1783	}	2135	}
1784		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
1785	X_THREAD_PROC (etp_proc)	2154	X_THREAD_PROC (etp_proc)
1786	{	2155	{
1787	ETP_REQ *req;	2156	ETP_REQ *req;
1788	struct timespec ts;	2157	struct timespec ts;
1789	etp_worker *self = (etp_worker *)thr_arg;	2158	etp_worker *self = (etp_worker *)thr_arg;
1790		2159
		2160	etp_proc_init ();
		2161
1791	/* try to distribute timeouts somewhat randomly */	2162	/* try to distribute timeouts somewhat evenly */
1792	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);	2163	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1793		2164
1794	for (;;)	2165	for (;;)
1795	{	2166	{
		2167	ts.tv_sec = 0;
		2168
1796	X_LOCK (reqlock);	2169	X_LOCK (reqlock);
1797		2170
1798	for (;;)	2171	for (;;)
1799	{	2172	{
1800	self->req = req = reqq_shift (&req_queue);	2173	req = reqq_shift (&req_queue);
1801		2174
1802	if (req)	2175	if (req)
1803	break;	2176	break;
1804		2177
		2178	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */
		2179	{
		2180	X_UNLOCK (reqlock);
		2181	X_LOCK (wrklock);
		2182	--started;
		2183	X_UNLOCK (wrklock);
		2184	goto quit;
		2185	}
		2186
1805	++idle;	2187	++idle;
1806		2188
1807	ts.tv_sec = time (0) + idle_timeout;	2189	if (idle <= max_idle)
1808	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT)	2190	/* we are allowed to idle, so do so without any timeout */
		2191	X_COND_WAIT (reqwait, reqlock);
		2192	else
1809	{	2193	{
1810	if (idle > max_idle)	2194	/* initialise timeout once */
1811	{	2195	if (!ts.tv_sec)
1812	--idle;	2196	ts.tv_sec = time (0) + idle_timeout;
1813	X_UNLOCK (reqlock);
1814	X_LOCK (wrklock);
1815	--started;
1816	X_UNLOCK (wrklock);
1817	goto quit;
1818	}
1819		2197
1820	/* we are allowed to idle, so do so without any timeout */
1821	X_COND_WAIT (reqwait, reqlock);	2198	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT)
		2199	ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */
1822	}	2200	}
1823		2201
1824	--idle;	2202	--idle;
1825	}	2203	}
1826		2204
…		…
1829	X_UNLOCK (reqlock);	2207	X_UNLOCK (reqlock);
1830		2208
1831	if (req->type < 0)	2209	if (req->type < 0)
1832	goto quit;	2210	goto quit;
1833		2211
1834	if (!EIO_CANCELLED (req))
1835	ETP_EXECUTE (self, req);	2212	ETP_EXECUTE (self, req);
1836		2213
1837	X_LOCK (reslock);	2214	X_LOCK (reslock);
1838		2215
1839	++npending;	2216	++npending;
1840		2217
1841	if (!reqq_push (&res_queue, req) && want_poll_cb)	2218	if (!reqq_push (&res_queue, req) && want_poll_cb)
1842	want_poll_cb ();	2219	want_poll_cb ();
1843		2220
1844	self->req = 0;
1845	etp_worker_clear (self);	2221	etp_worker_clear (self);
1846		2222
1847	X_UNLOCK (reslock);	2223	X_UNLOCK (reslock);
1848	}	2224	}
1849		2225
1850	quit:	2226	quit:
		2227	free (req);
		2228
1851	X_LOCK (wrklock);	2229	X_LOCK (wrklock);
1852	etp_worker_free (self);	2230	etp_worker_free (self);
1853	X_UNLOCK (wrklock);	2231	X_UNLOCK (wrklock);
1854		2232
1855	return 0;	2233	return 0;
…		…
1867	eio_api_destroy (eio_req *req)	2245	eio_api_destroy (eio_req *req)
1868	{	2246	{
1869	free (req);	2247	free (req);
1870	}	2248	}
1871		2249
1872	#define REQ(rtype) \	2250	#define REQ(rtype) \
1873	eio_req *req; \	2251	eio_req *req; \
1874	\	2252	\
1875	req = (eio_req *)calloc (1, sizeof *req); \	2253	req = (eio_req *)calloc (1, sizeof *req); \
1876	if (!req) \	2254	if (!req) \
1877	return 0; \	2255	return 0; \
…		…
1894	}	2272	}
1895		2273
1896	static void	2274	static void
1897	eio_execute (etp_worker *self, eio_req *req)	2275	eio_execute (etp_worker *self, eio_req *req)
1898	{	2276	{
		2277	#if HAVE_AT
		2278	int dirfd;
		2279	#else
		2280	const char *path;
		2281	#endif
		2282
		2283	if (ecb_expect_false (EIO_CANCELLED (req)))
		2284	{
		2285	req->result = -1;
		2286	req->errorno = ECANCELED;
		2287	return;
		2288	}
		2289
		2290	if (ecb_expect_false (req->wd == EIO_INVALID_WD))
		2291	{
		2292	req->result = -1;
		2293	req->errorno = ENOENT;
		2294	return;
		2295	}
		2296
		2297	if (req->type >= EIO_OPEN)
		2298	{
		2299	#if HAVE_AT
		2300	dirfd = WD2FD (req->wd);
		2301	#else
		2302	path = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
		2303	#endif
		2304	}
		2305
1899	switch (req->type)	2306	switch (req->type)
1900	{	2307	{
		2308	case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);
		2309	req->result = req->wd == EIO_INVALID_WD ? -1 : 0;
		2310	break;
		2311	case EIO_WD_CLOSE: req->result = 0;
		2312	eio_wd_close_sync (req->wd); break;
		2313
		2314	case EIO_SEEK: eio__lseek (req); break;
1901	case EIO_READ: ALLOC (req->size);	2315	case EIO_READ: ALLOC (req->size);
1902	req->result = req->offs >= 0	2316	req->result = req->offs >= 0
1903	? pread (req->int1, req->ptr2, req->size, req->offs)	2317	? pread (req->int1, req->ptr2, req->size, req->offs)
1904	: read (req->int1, req->ptr2, req->size); break;	2318	: read (req->int1, req->ptr2, req->size); break;
1905	case EIO_WRITE: req->result = req->offs >= 0	2319	case EIO_WRITE: req->result = req->offs >= 0
1906	? pwrite (req->int1, req->ptr2, req->size, req->offs)	2320	? pwrite (req->int1, req->ptr2, req->size, req->offs)
1907	: write (req->int1, req->ptr2, req->size); break;	2321	: write (req->int1, req->ptr2, req->size); break;
1908		2322
1909	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	2323	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1910	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;	2324	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
		2325
		2326	#if HAVE_AT
1911		2327
1912	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2328	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1913	req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2329	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;
1914	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2330	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2331	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;
		2332	case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;
		2333	case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;
		2334	case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;
		2335	case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;
		2336
		2337	case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;
		2338	case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;
		2339	case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;
		2340	case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break;
		2341	case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break;
		2342	case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;
		2343	case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
		2344	case EIO_READLINK: ALLOC (PATH_MAX);
		2345	req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;
		2346	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2347	req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2348	case EIO_UTIME:
		2349	case EIO_FUTIME:
		2350	{
		2351	struct timespec ts[2];
		2352	struct timespec *times;
		2353
		2354	if (req->nv1 != -1. || req->nv2 != -1.)
		2355	{
		2356	ts[0].tv_sec = req->nv1;
		2357	ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9;
		2358	ts[1].tv_sec = req->nv2;
		2359	ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9;
		2360
		2361	times = ts;
		2362	}
		2363	else
		2364	times = 0;
		2365
		2366	req->result = req->type == EIO_FUTIME
		2367	? futimens (req->int1, times)
		2368	: utimensat (dirfd, req->ptr1, times, 0);
		2369	}
		2370	break;
		2371
		2372	#else
		2373
		2374	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
		2375	req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2376	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1915	req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;	2377	req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
		2378	case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;
		2379	case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break;
		2380	case EIO_TRUNCATE: req->result = truncate (path , req->offs); break;
		2381	case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break;
		2382
		2383	case EIO_UNLINK: req->result = unlink (path ); break;
		2384	case EIO_RMDIR: req->result = rmdir (path ); break;
		2385	case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break;
		2386	case EIO_RENAME: req->result = rename (path , req->ptr2); break;
		2387	case EIO_LINK: req->result = link (path , req->ptr2); break;
		2388	case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break;
		2389	case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;
		2390	case EIO_READLINK: ALLOC (PATH_MAX);
		2391	req->result = readlink (path, req->ptr2, PATH_MAX); break;
		2392	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
		2393	req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;
		2394
		2395	case EIO_UTIME:
		2396	case EIO_FUTIME:
		2397	{
		2398	struct timeval tv[2];
		2399	struct timeval *times;
		2400
		2401	if (req->nv1 != -1. || req->nv2 != -1.)
		2402	{
		2403	tv[0].tv_sec = req->nv1;
		2404	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6;
		2405	tv[1].tv_sec = req->nv2;
		2406	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6;
		2407
		2408	times = tv;
		2409	}
		2410	else
		2411	times = 0;
		2412
		2413	req->result = req->type == EIO_FUTIME
		2414	? futimes (req->int1, times)
		2415	: utimes (req->ptr1, times);
		2416	}
		2417	break;
		2418
		2419	#endif
		2420
		2421	case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))
		2422	{
		2423	ALLOC (req->result);
		2424	memcpy (req->ptr2, self->tmpbuf.ptr, req->result);
		2425	}
		2426	break;
		2427
1916	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	2428	case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1917	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;	2429	req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
1918		2430
1919	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1920	req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1921	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));	2431	case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1922	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;	2432	req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1923		2433
1924	case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1925	case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;	2434	case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1926	case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
1927	case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;	2435	case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
1928	case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1929	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;	2436	case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1930		2437
1931	case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break;
1932	case EIO_CLOSE: req->result = close (req->int1); break;	2438	case EIO_CLOSE: req->result = close (req->int1); break;
1933	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;	2439	case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
1934	case EIO_UNLINK: req->result = unlink (req->ptr1); break;
1935	case EIO_RMDIR: req->result = rmdir (req->ptr1); break;
1936	case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
1937	case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
1938	case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
1939	case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
1940	case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
1941
1942	case EIO_REALPATH: eio__realpath (req, self); break;
1943
1944	case EIO_READLINK: ALLOC (PATH_MAX);
1945	req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break;
1946
1947	case EIO_SYNC: req->result = 0; sync (); break;	2440	case EIO_SYNC: req->result = 0; sync (); break;
1948	case EIO_FSYNC: req->result = fsync (req->int1); break;	2441	case EIO_FSYNC: req->result = fsync (req->int1); break;
1949	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;	2442	case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
		2443	case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
		2444	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
1950	case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;	2445	case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
1951	case EIO_MTOUCH: req->result = eio__mtouch (req); break;	2446	case EIO_MTOUCH: req->result = eio__mtouch (req); break;
1952	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;	2447	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
1953	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;	2448	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
1954	case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;	2449	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
1955		2450
1956	case EIO_READDIR: eio__scandir (req, self); break;	2451	case EIO_READDIR: eio__scandir (req, self); break;
1957		2452
1958	case EIO_BUSY:	2453	case EIO_BUSY:
1959	#ifdef _WIN32	2454	#ifdef _WIN32
…		…
1968	req->result = select (0, 0, 0, 0, &tv);	2463	req->result = select (0, 0, 0, 0, &tv);
1969	}	2464	}
1970	#endif	2465	#endif
1971	break;	2466	break;
1972		2467
1973	case EIO_UTIME:
1974	case EIO_FUTIME:
1975	{
1976	struct timeval tv[2];
1977	struct timeval *times;
1978
1979	if (req->nv1 != -1. || req->nv2 != -1.)
1980	{
1981	tv[0].tv_sec = req->nv1;
1982	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1983	tv[1].tv_sec = req->nv2;
1984	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1985
1986	times = tv;
1987	}
1988	else
1989	times = 0;
1990
1991	req->result = req->type == EIO_FUTIME
1992	? futimes (req->int1, times)
1993	: utimes (req->ptr1, times);
1994	}
1995	break;
1996
1997	case EIO_GROUP:	2468	case EIO_GROUP:
1998	abort (); /* handled in eio_request */	2469	abort (); /* handled in eio_request */
1999		2470
2000	case EIO_NOP:	2471	case EIO_NOP:
2001	req->result = 0;	2472	req->result = 0;
…		…
2004	case EIO_CUSTOM:	2475	case EIO_CUSTOM:
2005	req->feed (req);	2476	req->feed (req);
2006	break;	2477	break;
2007		2478
2008	default:	2479	default:
2009	errno = ENOSYS;
2010	req->result = -1;	2480	req->result = EIO_ENOSYS ();
2011	break;	2481	break;
2012	}	2482	}
2013		2483
2014	req->errorno = errno;	2484	req->errorno = errno;
2015	}	2485	}
2016		2486
2017	#ifndef EIO_NO_WRAPPERS	2487	#ifndef EIO_NO_WRAPPERS
2018		2488
		2489	eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data)
		2490	{
		2491	REQ (EIO_WD_OPEN); PATH; SEND;
		2492	}
		2493
		2494	eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data)
		2495	{
		2496	REQ (EIO_WD_CLOSE); req->wd = wd; SEND;
		2497	}
		2498
2019	eio_req *eio_nop (int pri, eio_cb cb, void *data)	2499	eio_req *eio_nop (int pri, eio_cb cb, void *data)
2020	{	2500	{
2021	REQ (EIO_NOP); SEND;	2501	REQ (EIO_NOP); SEND;
2022	}	2502	}
2023		2503
…		…
2039	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2519	eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2040	{	2520	{
2041	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2521	REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2042	}	2522	}
2043		2523
		2524	eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
		2525	{
		2526	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
		2527	}
		2528
		2529	eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data)
		2530	{
		2531	REQ (EIO_SYNCFS); req->int1 = fd; SEND;
		2532	}
		2533
		2534	eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
		2535	{
		2536	REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
		2537	}
		2538
2044	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)	2539	eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2045	{	2540	{
2046	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;	2541	REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2047	}	2542	}
2048		2543
…		…
2054	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)	2549	eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
2055	{	2550	{
2056	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;	2551	REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
2057	}	2552	}
2058		2553
2059	eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)	2554	eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)
2060	{	2555	{
2061	REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;	2556	REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;
2062	}
2063
2064	eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
2065	{
2066	REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
2067	}	2557	}
2068		2558
2069	eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)	2559	eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
2070	{	2560	{
2071	REQ (EIO_CLOSE); req->int1 = fd; SEND;	2561	REQ (EIO_CLOSE); req->int1 = fd; SEND;
…		…
2074	eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)	2564	eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)
2075	{	2565	{
2076	REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;	2566	REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
2077	}	2567	}
2078		2568
		2569	eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data)
		2570	{
		2571	REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND;
		2572	}
		2573
2079	eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)	2574	eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
2080	{	2575	{
2081	REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;	2576	REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
2082	}	2577	}
2083		2578
…		…
2109	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)	2604	eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
2110	{	2605	{
2111	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;	2606	REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
2112	}	2607	}
2113		2608
2114	eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2609	eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2115	{	2610	{
2116	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2611	REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2117	}	2612	}
2118		2613
2119	eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)	2614	eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
…		…
2139	eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)	2634	eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
2140	{	2635	{
2141	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;	2636	REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
2142	}	2637	}
2143		2638
2144	eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)	2639	eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
2145	{	2640	{
2146	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;	2641	REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
2147	}	2642	}
2148		2643
2149	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)	2644	eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
…		…
2296	}	2791	}
2297		2792
2298	/*****************************************************************************/	2793	/*****************************************************************************/
2299	/* misc garbage */	2794	/* misc garbage */
2300		2795
2301	ssize_t	2796	eio_ssize_t
2302	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)	2797	eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
2303	{	2798	{
2304	etp_worker wrk;
2305	ssize_t ret;
2306
2307	wrk.dbuf = 0;
2308
2309	ret = eio__sendfile (ofd, ifd, offset, count, &wrk);	2799	return eio__sendfile (ofd, ifd, offset, count);
2310
2311	if (wrk.dbuf)
2312	free (wrk.dbuf);
2313
2314	return ret;
2315	}	2800	}
2316		2801

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