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

Comparing libeio/eio.c (file contents):
Revision 1.105 by root, Mon Sep 26 18:23:18 2011 UTC vs.
Revision 1.139 by root, Thu Jun 25 18:14:19 2015 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) 2007,2008,2009,2010,2011,2012,2013 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	*
10	* 1. Redistributions of source code must retain the above copyright notice,	10	* 1. Redistributions of source code must retain the above copyright notice,
11	* this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
12	*	12	*
13	* 2. Redistributions in binary form must reproduce the above copyright	13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the	14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.	15	* documentation and/or other materials provided with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO	19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
120	#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))
121		121
122	#define chmod(path,mode) _chmod (path, mode)	122	#define chmod(path,mode) _chmod (path, mode)
123	#define dup(fd) _dup (fd)	123	#define dup(fd) _dup (fd)
124	#define dup2(fd1,fd2) _dup2 (fd1, fd2)	124	#define dup2(fd1,fd2) _dup2 (fd1, fd2)
		125	#define pipe(fds) _pipe (fds, 4096, O_BINARY)
125		126
126	#define fchmod(fd,mode) EIO_ENOSYS ()	127	#define fchmod(fd,mode) EIO_ENOSYS ()
127	#define chown(path,uid,gid) EIO_ENOSYS ()	128	#define chown(path,uid,gid) EIO_ENOSYS ()
128	#define fchown(fd,uid,gid) EIO_ENOSYS ()	129	#define fchown(fd,uid,gid) EIO_ENOSYS ()
129	#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */	130	#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */
…		…
131	#define mknod(path,mode,dev) EIO_ENOSYS ()	132	#define mknod(path,mode,dev) EIO_ENOSYS ()
132	#define sync() EIO_ENOSYS ()	133	#define sync() EIO_ENOSYS ()
133	#define readlink(path,buf,s) EIO_ENOSYS ()	134	#define readlink(path,buf,s) EIO_ENOSYS ()
134	#define statvfs(path,buf) EIO_ENOSYS ()	135	#define statvfs(path,buf) EIO_ENOSYS ()
135	#define fstatvfs(fd,buf) EIO_ENOSYS ()	136	#define fstatvfs(fd,buf) EIO_ENOSYS ()
		137
		138	#define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset)
		139	#define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset)
		140
		141	#if __GNUC__
		142	typedef long long eio_off_t; /* signed for compatibility to msvc */
		143	#else
		144	typedef __int64 eio_off_t; /* unsigned not supported by msvc */
		145	#endif
		146
		147	static eio_ssize_t
		148	eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset)
		149	{
		150	OVERLAPPED o = { 0 };
		151	DWORD got;
		152
		153	o.Offset = offset;
		154	o.OffsetHigh = offset >> 32;
		155
		156	return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o)
		157	? got : -1;
		158	}
		159
		160	static eio_ssize_t
		161	eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset)
		162	{
		163	OVERLAPPED o = { 0 };
		164	DWORD got;
		165
		166	o.Offset = offset;
		167	o.OffsetHigh = offset >> 32;
		168
		169	return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o)
		170	? got : -1;
		171	}
136		172
137	/* rename() uses MoveFile, which fails to overwrite */	173	/* rename() uses MoveFile, which fails to overwrite */
138	#define rename(old,neu) eio__rename (old, neu)	174	#define rename(old,neu) eio__rename (old, neu)
139		175
140	static int	176	static int
…		…
178	#endif	214	#endif
179		215
180	return EIO_ERRNO (ENOENT, -1);	216	return EIO_ERRNO (ENOENT, -1);
181	}	217	}
182		218
183	/* POSIX API only */	219	/* POSIX API only, causing trouble for win32 apps */
184	#define CreateHardLink(neu,old,flags) 0	220	#define CreateHardLink(neu,old,flags) 0 /* not really creating hardlink, still using relative paths? */
185	#define CreateSymbolicLink(neu,old,flags) 0	221	#define CreateSymbolicLink(neu,old,flags) 0 /* vista+ only */
186		222
187	struct statvfs	223	struct statvfs
188	{	224	{
189	int dummy;	225	int dummy;
190	};	226	};
…		…
196		232
197	#else	233	#else
198		234
199	#include <sys/time.h>	235	#include <sys/time.h>
200	#include <sys/select.h>	236	#include <sys/select.h>
201	#include <sys/statvfs.h>
202	#include <unistd.h>	237	#include <unistd.h>
203	#include <signal.h>	238	#include <signal.h>
204	#include <dirent.h>	239	#include <dirent.h>
205		240
		241	#ifdef ANDROID
		242	#include <sys/vfs.h>
		243	#define statvfs statfs
		244	#define fstatvfs fstatfs
		245	#include <asm/page.h> /* supposedly limits.h does #define PAGESIZE PAGESIZE */
		246	#else
		247	#include <sys/statvfs.h>
		248	#endif
		249
206	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES	250	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
207	#include <sys/mman.h>	251	#include <sys/mman.h>
208	#endif	252	#endif
209		253
210	#define D_NAME(entp) entp->d_name	254	#define D_NAME(entp) entp->d_name
211		255
212	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */	256	/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
213	#if __FreeBSD__ \|\| defined __NetBSD__ \|\| defined __OpenBSD__	257	#if __FreeBSD__ \|\| __NetBSD__ \|\| __OpenBSD__
214	#define _DIRENT_HAVE_D_TYPE /* sigh */	258	#define _DIRENT_HAVE_D_TYPE /* sigh */
215	#define D_INO(de) (de)->d_fileno	259	#define D_INO(de) (de)->d_fileno
216	#define D_NAMLEN(de) (de)->d_namlen	260	#define D_NAMLEN(de) (de)->d_namlen
217	#elif __linux \|\| defined d_ino \|\| _XOPEN_SOURCE >= 600	261	#elif __linux \|\| defined d_ino \|\| _XOPEN_SOURCE >= 600
218	#define D_INO(de) (de)->d_ino	262	#define D_INO(de) (de)->d_ino
…		…
281	#endif	325	#endif
282		326
283	/* buffer size for various temporary buffers */	327	/* buffer size for various temporary buffers */
284	#define EIO_BUFSIZE 65536	328	#define EIO_BUFSIZE 65536
285		329
286	#define dBUF \	330	#define dBUF \
287	char *eio_buf = malloc (EIO_BUFSIZE); \	331	char *eio_buf = malloc (EIO_BUFSIZE); \
288	errno = ENOMEM; \	332	errno = ENOMEM; \
289	if (!eio_buf) \	333	if (!eio_buf) \
290	return -1	334	return -1
291		335
292	#define FUBd \	336	#define FUBd \
293	free (eio_buf)	337	free (eio_buf)
294		338
295	#define EIO_TICKS ((1000000 + 1023) >> 10)
296
297	/*****************************************************************************/	339	/*****************************************************************************/
298		340
299	struct tmpbuf	341	struct etp_tmpbuf;
		342
		343	#if _POSIX_VERSION >= 200809L
		344	#define HAVE_AT 1
		345	#define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD)
		346	#ifndef O_SEARCH
		347	#define O_SEARCH O_RDONLY
		348	#endif
		349	#else
		350	#define HAVE_AT 0
		351	static const char wd_expand (struct etp_tmpbuf tmpbuf, eio_wd wd, const char *path);
		352	#endif
		353
		354	struct eio_pwd
300	{	355	{
301	void *ptr;	356	#if HAVE_AT
		357	int fd;
		358	#endif
302	int len;	359	int len;
		360	char str[1]; /* actually, a 0-terminated canonical path */
303	};	361	};
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		362
317	/*****************************************************************************/	363	/*****************************************************************************/
318		364
319	#define ETP_PRI_MIN EIO_PRI_MIN	365	#define ETP_PRI_MIN EIO_PRI_MIN
320	#define ETP_PRI_MAX EIO_PRI_MAX	366	#define ETP_PRI_MAX EIO_PRI_MAX
321		367
		368	#define ETP_TYPE_QUIT -1
		369	#define ETP_TYPE_GROUP EIO_GROUP
		370
		371	static void eio_nop_callback (void) { }
		372	static void (*eio_want_poll_cb)(void) = eio_nop_callback;
		373	static void (*eio_done_poll_cb)(void) = eio_nop_callback;
		374
		375	#define ETP_WANT_POLL(pool) eio_want_poll_cb ()
		376	#define ETP_DONE_POLL(pool) eio_done_poll_cb ()
		377
322	struct etp_worker;	378	struct etp_worker;
323
324	#define ETP_REQ eio_req	379	#define ETP_REQ eio_req
325	#define ETP_DESTROY(req) eio_destroy (req)	380	#define ETP_DESTROY(req) eio_destroy (req)
326	static int eio_finish (eio_req *req);	381	static int eio_finish (eio_req *req);
327	#define ETP_FINISH(req) eio_finish (req)	382	#define ETP_FINISH(req) eio_finish (req)
328	static void eio_execute (struct etp_worker self, eio_req req);	383	static void eio_execute (struct etp_worker self, eio_req req);
329	#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)	384	#define ETP_EXECUTE(wrk,req) eio_execute (wrk, req)
330		385
331	/*****************************************************************************/	386	#include "etp.c"
332		387
333	#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)	388	static struct etp_pool eio_pool;
334		389	#define EIO_POOL (&eio_pool)
335	/* calculate time difference in ~1/EIO_TICKS of a second */
336	ecb_inline int
337	tvdiff (struct timeval tv1, struct timeval tv2)
338	{
339	return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
340	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
341	}
342
343	static unsigned int started, idle, wanted = 4;
344
345	static void (*want_poll_cb) (void);
346	static void (*done_poll_cb) (void);
347
348	static unsigned int max_poll_time; /* reslock */
349	static unsigned int max_poll_reqs; /* reslock */
350
351	static unsigned int nreqs; /* reqlock */
352	static unsigned int nready; /* reqlock */
353	static unsigned int npending; /* reqlock */
354	static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */
355	static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */
356
357	static xmutex_t wrklock;
358	static xmutex_t reslock;
359	static xmutex_t reqlock;
360	static xcond_t reqwait;
361
362	#if !HAVE_PREADWRITE
363	/*
364	* make our pread/pwrite emulation safe against themselves, but not against
365	* normal read/write by using a mutex. slows down execution a lot,
366	* but that's your problem, not mine.
367	*/
368	static xmutex_t preadwritelock;
369	#endif
370
371	typedef struct etp_worker
372	{
373	struct tmpbuf tmpbuf;
374
375	/* locked by wrklock */
376	struct etp_worker prev, next;
377
378	xthread_t tid;
379
380	#ifdef ETP_WORKER_COMMON
381	ETP_WORKER_COMMON
382	#endif
383	} etp_worker;
384
385	static etp_worker wrk_first; /* NOT etp */
386
387	#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
388	#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
389
390	/* worker threads management */
391
392	static void ecb_cold
393	etp_worker_clear (etp_worker *wrk)
394	{
395	}
396
397	static void ecb_cold
398	etp_worker_free (etp_worker *wrk)
399	{
400	free (wrk->tmpbuf.ptr);
401
402	wrk->next->prev = wrk->prev;
403	wrk->prev->next = wrk->next;
404
405	free (wrk);
406	}
407
408	static unsigned int
409	etp_nreqs (void)
410	{
411	int retval;
412	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
413	retval = nreqs;
414	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
415	return retval;
416	}
417
418	static unsigned int
419	etp_nready (void)
420	{
421	unsigned int retval;
422
423	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
424	retval = nready;
425	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
426
427	return retval;
428	}
429
430	static unsigned int
431	etp_npending (void)
432	{
433	unsigned int retval;
434
435	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
436	retval = npending;
437	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
438
439	return retval;
440	}
441
442	static unsigned int
443	etp_nthreads (void)
444	{
445	unsigned int retval;
446
447	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
448	retval = started;
449	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
450
451	return retval;
452	}
453
454	/*
455	* a somewhat faster data structure might be nice, but
456	* with 8 priorities this actually needs <20 insns
457	* per shift, the most expensive operation.
458	*/
459	typedef struct {
460	ETP_REQ qs[ETP_NUM_PRI], qe[ETP_NUM_PRI]; /* qstart, qend */
461	int size;
462	} etp_reqq;
463
464	static etp_reqq req_queue;
465	static etp_reqq res_queue;
466
467	static void ecb_noinline ecb_cold
468	reqq_init (etp_reqq *q)
469	{
470	int pri;
471
472	for (pri = 0; pri < ETP_NUM_PRI; ++pri)
473	q->qs[pri] = q->qe[pri] = 0;
474
475	q->size = 0;
476	}
477
478	static int ecb_noinline
479	reqq_push (etp_reqq q, ETP_REQ req)
480	{
481	int pri = req->pri;
482	req->next = 0;
483
484	if (q->qe[pri])
485	{
486	q->qe[pri]->next = req;
487	q->qe[pri] = req;
488	}
489	else
490	q->qe[pri] = q->qs[pri] = req;
491
492	return q->size++;
493	}
494
495	static ETP_REQ * ecb_noinline
496	reqq_shift (etp_reqq *q)
497	{
498	int pri;
499
500	if (!q->size)
501	return 0;
502
503	--q->size;
504
505	for (pri = ETP_NUM_PRI; pri--; )
506	{
507	eio_req *req = q->qs[pri];
508
509	if (req)
510	{
511	if (!(q->qs[pri] = (eio_req *)req->next))
512	q->qe[pri] = 0;
513
514	return req;
515	}
516	}
517
518	abort ();
519	}
520
521	static int ecb_cold
522	etp_init (void (want_poll)(void), void (done_poll)(void))
523	{
524	X_MUTEX_CREATE (wrklock);
525	X_MUTEX_CREATE (reslock);
526	X_MUTEX_CREATE (reqlock);
527	X_COND_CREATE (reqwait);
528
529	reqq_init (&req_queue);
530	reqq_init (&res_queue);
531
532	wrk_first.next =
533	wrk_first.prev = &wrk_first;
534
535	started = 0;
536	idle = 0;
537	nreqs = 0;
538	nready = 0;
539	npending = 0;
540
541	want_poll_cb = want_poll;
542	done_poll_cb = done_poll;
543
544	return 0;
545	}
546
547	X_THREAD_PROC (etp_proc);
548
549	static void ecb_cold
550	etp_start_thread (void)
551	{
552	etp_worker *wrk = calloc (1, sizeof (etp_worker));
553
554	/TODO/
555	assert (("unable to allocate worker thread data", wrk));
556
557	X_LOCK (wrklock);
558
559	if (thread_create (&wrk->tid, etp_proc, (void *)wrk))
560	{
561	wrk->prev = &wrk_first;
562	wrk->next = wrk_first.next;
563	wrk_first.next->prev = wrk;
564	wrk_first.next = wrk;
565	++started;
566	}
567	else
568	free (wrk);
569
570	X_UNLOCK (wrklock);
571	}
572
573	static void
574	etp_maybe_start_thread (void)
575	{
576	if (ecb_expect_true (etp_nthreads () >= wanted))
577	return;
578
579	/* todo: maybe use idle here, but might be less exact */
580	if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ()))
581	return;
582
583	etp_start_thread ();
584	}
585
586	static void ecb_cold
587	etp_end_thread (void)
588	{
589	eio_req req = calloc (1, sizeof (eio_req)); / will be freed by worker */
590
591	req->type = -1;
592	req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
593
594	X_LOCK (reqlock);
595	reqq_push (&req_queue, req);
596	X_COND_SIGNAL (reqwait);
597	X_UNLOCK (reqlock);
598
599	X_LOCK (wrklock);
600	--started;
601	X_UNLOCK (wrklock);
602	}
603
604	static int
605	etp_poll (void)
606	{
607	unsigned int maxreqs;
608	unsigned int maxtime;
609	struct timeval tv_start, tv_now;
610
611	X_LOCK (reslock);
612	maxreqs = max_poll_reqs;
613	maxtime = max_poll_time;
614	X_UNLOCK (reslock);
615
616	if (maxtime)
617	gettimeofday (&tv_start, 0);
618
619	for (;;)
620	{
621	ETP_REQ *req;
622
623	etp_maybe_start_thread ();
624
625	X_LOCK (reslock);
626	req = reqq_shift (&res_queue);
627
628	if (req)
629	{
630	--npending;
631
632	if (!res_queue.size && done_poll_cb)
633	done_poll_cb ();
634	}
635
636	X_UNLOCK (reslock);
637
638	if (!req)
639	return 0;
640
641	X_LOCK (reqlock);
642	--nreqs;
643	X_UNLOCK (reqlock);
644
645	if (ecb_expect_false (req->type == EIO_GROUP && req->size))
646	{
647	req->int1 = 1; /* mark request as delayed */
648	continue;
649	}
650	else
651	{
652	int res = ETP_FINISH (req);
653	if (ecb_expect_false (res))
654	return res;
655	}
656
657	if (ecb_expect_false (maxreqs && !--maxreqs))
658	break;
659
660	if (maxtime)
661	{
662	gettimeofday (&tv_now, 0);
663
664	if (tvdiff (&tv_start, &tv_now) >= maxtime)
665	break;
666	}
667	}
668
669	errno = EAGAIN;
670	return -1;
671	}
672
673	static void
674	etp_cancel (ETP_REQ *req)
675	{
676	req->cancelled = 1;
677
678	eio_grp_cancel (req);
679	}
680
681	static void
682	etp_submit (ETP_REQ *req)
683	{
684	req->pri -= ETP_PRI_MIN;
685
686	if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN;
687	if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
688
689	if (ecb_expect_false (req->type == EIO_GROUP))
690	{
691	/* I hope this is worth it :/ */
692	X_LOCK (reqlock);
693	++nreqs;
694	X_UNLOCK (reqlock);
695
696	X_LOCK (reslock);
697
698	++npending;
699
700	if (!reqq_push (&res_queue, req) && want_poll_cb)
701	want_poll_cb ();
702
703	X_UNLOCK (reslock);
704	}
705	else
706	{
707	X_LOCK (reqlock);
708	++nreqs;
709	++nready;
710	reqq_push (&req_queue, req);
711	X_COND_SIGNAL (reqwait);
712	X_UNLOCK (reqlock);
713
714	etp_maybe_start_thread ();
715	}
716	}
717
718	static void ecb_cold
719	etp_set_max_poll_time (double nseconds)
720	{
721	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
722	max_poll_time = nseconds * EIO_TICKS;
723	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
724	}
725
726	static void ecb_cold
727	etp_set_max_poll_reqs (unsigned int maxreqs)
728	{
729	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
730	max_poll_reqs = maxreqs;
731	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
732	}
733
734	static void ecb_cold
735	etp_set_max_idle (unsigned int nthreads)
736	{
737	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
738	max_idle = nthreads;
739	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
740	}
741
742	static void ecb_cold
743	etp_set_idle_timeout (unsigned int seconds)
744	{
745	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
746	idle_timeout = seconds;
747	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
748	}
749
750	static void ecb_cold
751	etp_set_min_parallel (unsigned int nthreads)
752	{
753	if (wanted < nthreads)
754	wanted = nthreads;
755	}
756
757	static void ecb_cold
758	etp_set_max_parallel (unsigned int nthreads)
759	{
760	if (wanted > nthreads)
761	wanted = nthreads;
762
763	while (started > wanted)
764	etp_end_thread ();
765	}
766		390
767	/*****************************************************************************/	391	/*****************************************************************************/
768		392
769	static void	393	static void
770	grp_try_feed (eio_req *grp)	394	grp_try_feed (eio_req *grp)
771	{	395	{
772	while (grp->size < grp->int2 && !EIO_CANCELLED (grp))	396	while (grp->size < grp->int2 && !EIO_CANCELLED (grp))
773	{	397	{
774	grp->flags &= ~EIO_FLAG_GROUPADD;	398	grp->flags &= ~ETP_FLAG_GROUPADD;
775		399
776	EIO_FEED (grp);	400	EIO_FEED (grp);
777		401
778	/* stop if no progress has been made */	402	/* stop if no progress has been made */
779	if (!(grp->flags & EIO_FLAG_GROUPADD))	403	if (!(grp->flags & ETP_FLAG_GROUPADD))
780	{	404	{
781	grp->feed = 0;	405	grp->feed = 0;
782	break;	406	break;
783	}	407	}
784	}	408	}
…		…
791		415
792	/* call feeder, if applicable */	416	/* call feeder, if applicable */
793	grp_try_feed (grp);	417	grp_try_feed (grp);
794		418
795	/* finish, if done */	419	/* finish, if done */
796	if (!grp->size && grp->int1)	420	if (!grp->size && grp->flags & ETP_FLAG_DELAYED)
797	return eio_finish (grp);	421	return eio_finish (grp);
798	else	422	else
799	return 0;	423	return 0;
800	}	424	}
801		425
…		…
837	}	461	}
838		462
839	void	463	void
840	eio_grp_cancel (eio_req *grp)	464	eio_grp_cancel (eio_req *grp)
841	{	465	{
842	for (grp = grp->grp_first; grp; grp = grp->grp_next)	466	etp_grp_cancel (EIO_POOL, grp);
843	eio_cancel (grp);
844	}	467	}
845		468
846	void	469	void
847	eio_cancel (eio_req *req)	470	eio_cancel (eio_req *req)
848	{	471	{
849	etp_cancel (req);	472	etp_cancel (EIO_POOL, req);
850	}	473	}
851		474
852	void	475	void
853	eio_submit (eio_req *req)	476	eio_submit (eio_req *req)
854	{	477	{
855	etp_submit (req);	478	etp_submit (EIO_POOL, req);
856	}	479	}
857		480
858	unsigned int	481	unsigned int
859	eio_nreqs (void)	482	eio_nreqs (void)
860	{	483	{
861	return etp_nreqs ();	484	return etp_nreqs (EIO_POOL);
862	}	485	}
863		486
864	unsigned int	487	unsigned int
865	eio_nready (void)	488	eio_nready (void)
866	{	489	{
867	return etp_nready ();	490	return etp_nready (EIO_POOL);
868	}	491	}
869		492
870	unsigned int	493	unsigned int
871	eio_npending (void)	494	eio_npending (void)
872	{	495	{
873	return etp_npending ();	496	return etp_npending (EIO_POOL);
874	}	497	}
875		498
876	unsigned int ecb_cold	499	unsigned int ecb_cold
877	eio_nthreads (void)	500	eio_nthreads (void)
878	{	501	{
879	return etp_nthreads ();	502	return etp_nthreads (EIO_POOL);
880	}	503	}
881		504
882	void ecb_cold	505	void ecb_cold
883	eio_set_max_poll_time (double nseconds)	506	eio_set_max_poll_time (double nseconds)
884	{	507	{
885	etp_set_max_poll_time (nseconds);	508	etp_set_max_poll_time (EIO_POOL, nseconds);
886	}	509	}
887		510
888	void ecb_cold	511	void ecb_cold
889	eio_set_max_poll_reqs (unsigned int maxreqs)	512	eio_set_max_poll_reqs (unsigned int maxreqs)
890	{	513	{
891	etp_set_max_poll_reqs (maxreqs);	514	etp_set_max_poll_reqs (EIO_POOL, maxreqs);
892	}	515	}
893		516
894	void ecb_cold	517	void ecb_cold
895	eio_set_max_idle (unsigned int nthreads)	518	eio_set_max_idle (unsigned int nthreads)
896	{	519	{
897	etp_set_max_idle (nthreads);	520	etp_set_max_idle (EIO_POOL, nthreads);
898	}	521	}
899		522
900	void ecb_cold	523	void ecb_cold
901	eio_set_idle_timeout (unsigned int seconds)	524	eio_set_idle_timeout (unsigned int seconds)
902	{	525	{
903	etp_set_idle_timeout (seconds);	526	etp_set_idle_timeout (EIO_POOL, seconds);
904	}	527	}
905		528
906	void ecb_cold	529	void ecb_cold
907	eio_set_min_parallel (unsigned int nthreads)	530	eio_set_min_parallel (unsigned int nthreads)
908	{	531	{
909	etp_set_min_parallel (nthreads);	532	etp_set_min_parallel (EIO_POOL, nthreads);
910	}	533	}
911		534
912	void ecb_cold	535	void ecb_cold
913	eio_set_max_parallel (unsigned int nthreads)	536	eio_set_max_parallel (unsigned int nthreads)
914	{	537	{
915	etp_set_max_parallel (nthreads);	538	etp_set_max_parallel (EIO_POOL, nthreads);
916	}	539	}
917		540
918	int eio_poll (void)	541	int eio_poll (void)
919	{	542	{
920	return etp_poll ();	543	return etp_poll (EIO_POOL);
921	}	544	}
922		545
923	/*****************************************************************************/	546	/*****************************************************************************/
924	/* work around various missing functions */	547	/* work around various missing functions */
925
926	#if !HAVE_PREADWRITE
927	# undef pread
928	# undef pwrite
929	# define pread eio__pread
930	# define pwrite eio__pwrite
931
932	static eio_ssize_t
933	eio__pread (int fd, void *buf, size_t count, off_t offset)
934	{
935	eio_ssize_t res;
936	off_t ooffset;
937
938	X_LOCK (preadwritelock);
939	ooffset = lseek (fd, 0, SEEK_CUR);
940	lseek (fd, offset, SEEK_SET);
941	res = read (fd, buf, count);
942	lseek (fd, ooffset, SEEK_SET);
943	X_UNLOCK (preadwritelock);
944
945	return res;
946	}
947
948	static eio_ssize_t
949	eio__pwrite (int fd, void *buf, size_t count, off_t offset)
950	{
951	eio_ssize_t res;
952	off_t ooffset;
953
954	X_LOCK (preadwritelock);
955	ooffset = lseek (fd, 0, SEEK_CUR);
956	lseek (fd, offset, SEEK_SET);
957	res = write (fd, buf, count);
958	lseek (fd, ooffset, SEEK_SET);
959	X_UNLOCK (preadwritelock);
960
961	return res;
962	}
963	#endif
964		548
965	#ifndef HAVE_UTIMES	549	#ifndef HAVE_UTIMES
966		550
967	# undef utimes	551	# undef utimes
968	# define utimes(path,times) eio__utimes (path, times)	552	# define utimes(path,times) eio__utimes (path, times)
…		…
1010	int res;	594	int res;
1011		595
1012	#if HAVE_SYS_SYNCFS	596	#if HAVE_SYS_SYNCFS
1013	res = (int)syscall (__NR_syncfs, (int)(fd));	597	res = (int)syscall (__NR_syncfs, (int)(fd));
1014	#else	598	#else
1015	res = -1;	599	res = EIO_ENOSYS ();
1016	errno = ENOSYS;
1017	#endif	600	#endif
1018		601
1019	if (res < 0 && errno == ENOSYS && fd >= 0)	602	if (res < 0 && errno == ENOSYS && fd >= 0)
1020	sync ();	603	sync ();
1021		604
…		…
1051	}	634	}
1052		635
1053	static int	636	static int
1054	eio__fallocate (int fd, int mode, off_t offset, size_t len)	637	eio__fallocate (int fd, int mode, off_t offset, size_t len)
1055	{	638	{
1056	#if HAVE_FALLOCATE	639	#if HAVE_LINUX_FALLOCATE
1057	return fallocate (fd, mode, offset, len);	640	return fallocate (fd, mode, offset, len);
1058	#else	641	#else
1059	errno = ENOSYS;	642	return EIO_ENOSYS ();
1060	return -1;
1061	#endif	643	#endif
1062	}	644	}
1063		645
1064	#if !HAVE_READAHEAD	646	#if !HAVE_READAHEAD
1065	# undef readahead	647	# undef readahead
…		…
1080	todo -= len;	662	todo -= len;
1081	}	663	}
1082		664
1083	FUBd;	665	FUBd;
1084		666
1085	errno = 0;	667	/* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */
		668	/* but not for e.g. EIO or eof, so we also never fail */
1086	return count;	669	return 0;
1087	}	670	}
1088		671
1089	#endif	672	#endif
1090		673
1091	/* sendfile always needs emulation */	674	/* sendfile always needs emulation */
…		…
1126		709
1127	/* according to source inspection, this is correct, and useful behaviour */	710	/* according to source inspection, this is correct, and useful behaviour */
1128	if (sbytes)	711	if (sbytes)
1129	res = sbytes;	712	res = sbytes;
1130		713
1131	# elif defined (__APPLE__)	714	# elif defined __APPLE__
1132	off_t sbytes = count;	715	off_t sbytes = count;
1133	res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);	716	res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);
1134		717
1135	/* according to the manpage, sbytes is always valid */	718	/* according to the manpage, sbytes is always valid */
1136	if (sbytes)	719	if (sbytes)
…		…
1163	HANDLE h = TO_SOCKET (ifd);	746	HANDLE h = TO_SOCKET (ifd);
1164	SetFilePointer (h, offset, 0, FILE_BEGIN);	747	SetFilePointer (h, offset, 0, FILE_BEGIN);
1165	res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);	748	res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);
1166		749
1167	#else	750	#else
1168	res = -1;	751	res = EIO_ENOSYS ();
1169	errno = ENOSYS;
1170	#endif	752	#endif
1171		753
1172	/* we assume sendfile can copy at least 128mb in one go */	754	/* we assume sendfile can copy at least 128mb in one go */
1173	if (res <= 128 * 1024 * 1024)	755	if (res <= 128 * 1024 * 1024)
1174	{	756	{
…		…
1360	}	942	}
1361		943
1362	/*****************************************************************************/	944	/*****************************************************************************/
1363	/* requests implemented outside eio_execute, because they are so large */	945	/* requests implemented outside eio_execute, because they are so large */
1364		946
1365	/* copies some absolute path to tmpbuf */	947	static void
1366	static char *	948	eio__lseek (eio_req *req)
1367	eio__getwd (struct tmpbuf *tmpbuf, eio_wd wd)
1368	{	949	{
1369	if (wd == EIO_CWD)	950	/* this usually gets optimised away completely, or your compiler sucks, */
1370	return getcwd (tmpbuf->ptr, PATH_MAX);	951	/* or the whence constants really are not 0, 1, 2 */
		952	int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET
		953	: req->int2 == EIO_SEEK_CUR ? SEEK_CUR
		954	: req->int2 == EIO_SEEK_END ? SEEK_END
		955	: req->int2;
1371		956
1372	#if HAVE_AT	957	req->offs = lseek (req->int1, req->offs, whence);
1373	abort (); /TODO/	958	req->result = req->offs == (off_t)-1 ? -1 : 0;
1374	#else
1375	strcpy (tmpbuf->ptr, wd);
1376	#endif
1377	return tmpbuf->ptr;
1378	}	959	}
1379		960
1380	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */	961	/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
1381	static int	962	static int
1382	eio__realpath (struct tmpbuf tmpbuf, eio_wd wd, const char path)	963	eio__realpath (struct etp_tmpbuf tmpbuf, eio_wd wd, const char path)
1383	{	964	{
		965	char *res;
1384	const char *rel = path;	966	const char *rel = path;
1385	char *res;
1386	char tmp1, tmp2;	967	char tmp1, tmp2;
1387	#if SYMLOOP_MAX > 32	968	#if SYMLOOP_MAX > 32
1388	int symlinks = SYMLOOP_MAX;	969	int symlinks = SYMLOOP_MAX;
1389	#else	970	#else
1390	int symlinks = 32;	971	int symlinks = 32;
1391	#endif	972	#endif
1392		973
1393	/D/ /TODO: wd ignored /
1394
1395	errno = EINVAL;	974	errno = EINVAL;
1396	if (!rel)	975	if (!rel)
1397	return -1;	976	return -1;
1398		977
1399	errno = ENOENT;	978	errno = ENOENT;
1400	if (!*rel)	979	if (!*rel)
1401	return -1;	980	return -1;
1402		981
1403	res = tmpbuf_get (tmpbuf, PATH_MAX * 3);	982	res = etp_tmpbuf_get (tmpbuf, PATH_MAX * 3);
		983	#ifdef _WIN32
		984	if (_access (rel, 4) != 0)
		985	return -1;
		986
		987	symlinks = GetFullPathName (rel, PATH_MAX * 3, res, 0);
		988
		989	errno = ENAMETOOLONG;
		990	if (symlinks >= PATH_MAX * 3)
		991	return -1;
		992
		993	errno = EIO;
		994	if (symlinks <= 0)
		995	return -1;
		996
		997	return symlinks;
		998
		999	#else
1404	tmp1 = res + PATH_MAX;	1000	tmp1 = res + PATH_MAX;
1405	tmp2 = tmp1 + PATH_MAX;	1001	tmp2 = tmp1 + PATH_MAX;
1406		1002
1407	#if 0 /* disabled, the musl way to do things is just too racy */	1003	#if 0 /* disabled, the musl way to do things is just too racy */
1408	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)	1004	#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
…		…
1412		1008
1413	if (fd >= 0)	1009	if (fd >= 0)
1414	{	1010	{
1415	sprintf (tmp1, "/proc/self/fd/%d", fd);	1011	sprintf (tmp1, "/proc/self/fd/%d", fd);
1416	req->result = readlink (tmp1, res, PATH_MAX);	1012	req->result = readlink (tmp1, res, PATH_MAX);
		1013	/* here we should probably stat the open file and the disk file, to make sure they still match */
1417	close (fd);	1014	close (fd);
1418
1419	/* here we should probably stat the open file and the disk file, to make sure they still match */
1420		1015
1421	if (req->result > 0)	1016	if (req->result > 0)
1422	goto done;	1017	goto done;
1423	}	1018	}
1424	else if (errno == ELOOP \|\| errno == ENAMETOOLONG \|\| errno == ENOENT \|\| errno == ENOTDIR \|\| errno == EIO)	1019	else if (errno == ELOOP \|\| errno == ENAMETOOLONG \|\| errno == ENOENT \|\| errno == ENOTDIR \|\| errno == EIO)
1425	return;	1020	return -1;
1426	}	1021	}
1427	#endif	1022	#endif
1428	#endif	1023	#endif
1429		1024
1430	if (*rel != '/')	1025	if (*rel != '/')
1431	{	1026	{
1432	if (!eio__getwd (tmpbuf, wd))	1027	int len;
		1028
		1029	errno = ENOENT;
		1030	if (wd == EIO_INVALID_WD)
1433	return -1;	1031	return -1;
		1032
		1033	if (wd == EIO_CWD)
		1034	{
		1035	if (!getcwd (res, PATH_MAX))
		1036	return -1;
		1037
		1038	len = strlen (res);
		1039	}
		1040	else
		1041	memcpy (res, wd->str, len = wd->len);
1434		1042
1435	if (res [1]) /* only use if not / */	1043	if (res [1]) /* only use if not / */
1436	res += strlen (res);	1044	res += len;
1437	}	1045	}
1438		1046
1439	while (*rel)	1047	while (*rel)
1440	{	1048	{
1441	eio_ssize_t len, linklen;	1049	eio_ssize_t len, linklen;
…		…
1469	}	1077	}
1470	}	1078	}
1471		1079
1472	errno = ENAMETOOLONG;	1080	errno = ENAMETOOLONG;
1473	if (res + 1 + len + 1 >= tmp1)	1081	if (res + 1 + len + 1 >= tmp1)
1474	return;	1082	return -1;
1475		1083
1476	/* copy one component */	1084	/* copy one component */
1477	*res = '/';	1085	*res = '/';
1478	memcpy (res + 1, beg, len);	1086	memcpy (res + 1, beg, len);
1479		1087
…		…
1519	/* special case for the lone root path */	1127	/* special case for the lone root path */
1520	if (res == tmpbuf->ptr)	1128	if (res == tmpbuf->ptr)
1521	*res++ = '/';	1129	*res++ = '/';
1522		1130
1523	return res - (char *)tmpbuf->ptr;	1131	return res - (char *)tmpbuf->ptr;
		1132	#endif
1524	}	1133	}
1525		1134
1526	static signed char	1135	static signed char
1527	eio_dent_cmp (const eio_dirent a, const eio_dirent b)	1136	eio_dent_cmp (const eio_dirent a, const eio_dirent b)
1528	{	1137	{
…		…
1688	eio_dent_insertion_sort (dents, size);	1297	eio_dent_insertion_sort (dents, size);
1689	}	1298	}
1690		1299
1691	/* read a full directory */	1300	/* read a full directory */
1692	static void	1301	static void
1693	eio__scandir (eio_req *req)	1302	eio__scandir (eio_req req, etp_worker self)
1694	{	1303	{
1695	char name, names;	1304	char name, names;
1696	int namesalloc = 4096 - sizeof (void ) 4;	1305	int namesalloc = 4096 - sizeof (void ) 4;
1697	int namesoffs = 0;	1306	int namesoffs = 0;
1698	int flags = req->int1;	1307	int flags = req->int1;
…		…
1716	#ifdef _WIN32	1325	#ifdef _WIN32
1717	{	1326	{
1718	int len = strlen ((const char *)req->ptr1);	1327	int len = strlen ((const char *)req->ptr1);
1719	char *path = malloc (MAX_PATH);	1328	char *path = malloc (MAX_PATH);
1720	const char *fmt;	1329	const char *fmt;
		1330	const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
1721		1331
1722	if (!len)	1332	if (!len)
1723	fmt = "./*";	1333	fmt = "./*";
1724	else if (((const char )req->ptr1)[len - 1] == '/' \|\| ((const char )req->ptr1)[len - 1] == '\\')	1334	else if (reqpath[len - 1] == '/' \|\| reqpath[len - 1] == '\\')
1725	fmt = "%s*";	1335	fmt = "%s*";
1726	else	1336	else
1727	fmt = "%s/*";	1337	fmt = "%s/*";
1728		1338
1729	_snprintf (path, MAX_PATH, fmt, (const char *)req->ptr1);	1339	_snprintf (path, MAX_PATH, fmt, reqpath);
1730	dirp = FindFirstFile (path, &entp);	1340	dirp = FindFirstFile (path, &entp);
1731	free (path);	1341	free (path);
1732		1342
1733	if (dirp == INVALID_HANDLE_VALUE)	1343	if (dirp == INVALID_HANDLE_VALUE)
1734	{	1344	{
…		…
1756		1366
1757	return;	1367	return;
1758	}	1368	}
1759	}	1369	}
1760	#else	1370	#else
		1371	#if HAVE_AT
		1372	if (req->wd)
		1373	{
		1374	int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC \| O_SEARCH \| O_DIRECTORY);
		1375
		1376	if (fd < 0)
		1377	return;
		1378
		1379	dirp = fdopendir (fd);
		1380
		1381	if (!dirp)
		1382	close (fd);
		1383	}
		1384	else
1761	dirp = opendir (req->ptr1);	1385	dirp = opendir (req->ptr1);
		1386	#else
		1387	dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1));
		1388	#endif
1762		1389
1763	if (!dirp)	1390	if (!dirp)
1764	return;	1391	return;
1765	#endif	1392	#endif
1766		1393
…		…
1883	#ifdef DT_FIFO	1510	#ifdef DT_FIFO
1884	case DT_FIFO: ent->type = EIO_DT_FIFO; break;	1511	case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1885	#endif	1512	#endif
1886	#ifdef DT_CHR	1513	#ifdef DT_CHR
1887	case DT_CHR: ent->type = EIO_DT_CHR; break;	1514	case DT_CHR: ent->type = EIO_DT_CHR; break;
1888	#endif	1515	#endif
1889	#ifdef DT_MPC	1516	#ifdef DT_MPC
1890	case DT_MPC: ent->type = EIO_DT_MPC; break;	1517	case DT_MPC: ent->type = EIO_DT_MPC; break;
1891	#endif	1518	#endif
1892	#ifdef DT_DIR	1519	#ifdef DT_DIR
1893	case DT_DIR: ent->type = EIO_DT_DIR; break;	1520	case DT_DIR: ent->type = EIO_DT_DIR; break;
1894	#endif	1521	#endif
1895	#ifdef DT_NAM	1522	#ifdef DT_NAM
1896	case DT_NAM: ent->type = EIO_DT_NAM; break;	1523	case DT_NAM: ent->type = EIO_DT_NAM; break;
1897	#endif	1524	#endif
1898	#ifdef DT_BLK	1525	#ifdef DT_BLK
1899	case DT_BLK: ent->type = EIO_DT_BLK; break;	1526	case DT_BLK: ent->type = EIO_DT_BLK; break;
1900	#endif	1527	#endif
1901	#ifdef DT_MPB	1528	#ifdef DT_MPB
1902	case DT_MPB: ent->type = EIO_DT_MPB; break;	1529	case DT_MPB: ent->type = EIO_DT_MPB; break;
1903	#endif	1530	#endif
1904	#ifdef DT_REG	1531	#ifdef DT_REG
1905	case DT_REG: ent->type = EIO_DT_REG; break;	1532	case DT_REG: ent->type = EIO_DT_REG; break;
1906	#endif	1533	#endif
1907	#ifdef DT_NWK	1534	#ifdef DT_NWK
1908	case DT_NWK: ent->type = EIO_DT_NWK; break;	1535	case DT_NWK: ent->type = EIO_DT_NWK; break;
1909	#endif	1536	#endif
1910	#ifdef DT_CMP	1537	#ifdef DT_CMP
1911	case DT_CMP: ent->type = EIO_DT_CMP; break;	1538	case DT_CMP: ent->type = EIO_DT_CMP; break;
1912	#endif	1539	#endif
1913	#ifdef DT_LNK	1540	#ifdef DT_LNK
1914	case DT_LNK: ent->type = EIO_DT_LNK; break;	1541	case DT_LNK: ent->type = EIO_DT_LNK; break;
1915	#endif	1542	#endif
1916	#ifdef DT_SOCK	1543	#ifdef DT_SOCK
1917	case DT_SOCK: ent->type = EIO_DT_SOCK; break;	1544	case DT_SOCK: ent->type = EIO_DT_SOCK; break;
…		…
1930	{	1557	{
1931	if (ent->type == EIO_DT_UNKNOWN)	1558	if (ent->type == EIO_DT_UNKNOWN)
1932	{	1559	{
1933	if (name == '.') / leading dots are likely directories, and, in any case, rare */	1560	if (name == '.') / leading dots are likely directories, and, in any case, rare */
1934	ent->score = 1;	1561	ent->score = 1;
1935	else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */	1562	else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1936	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */	1563	ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1937	}	1564	}
1938	else if (ent->type == EIO_DT_DIR)	1565	else if (ent->type == EIO_DT_DIR)
1939	ent->score = 0;	1566	ent->score = 0;
1940	}	1567	}
…		…
1960	}	1587	}
1961	}	1588	}
1962		1589
1963	/*****************************************************************************/	1590	/*****************************************************************************/
1964	/* working directory stuff */	1591	/* working directory stuff */
		1592	/* various deficiencies in the posix 2008 api force us to */
		1593	/* keep the absolute path in string form at all times */
		1594	/* fuck yeah. */
		1595
		1596	#if !HAVE_AT
		1597
		1598	/* a bit like realpath, but usually faster because it doesn'T have to return */
		1599	/* an absolute or canonical path */
		1600	static const char *
		1601	wd_expand (struct etp_tmpbuf tmpbuf, eio_wd wd, const char path)
		1602	{
		1603	if (!wd \|\| *path == '/')
		1604	return path;
		1605
		1606	if (path [0] == '.' && !path [1])
		1607	return wd->str;
		1608
		1609	{
		1610	int l1 = wd->len;
		1611	int l2 = strlen (path);
		1612
		1613	char *res = etp_tmpbuf_get (tmpbuf, l1 + l2 + 2);
		1614
		1615	memcpy (res, wd->str, l1);
		1616	res [l1] = '/';
		1617	memcpy (res + l1 + 1, path, l2 + 1);
		1618
		1619	return res;
		1620	}
		1621	}
		1622
		1623	#endif
		1624
		1625	static eio_wd
		1626	eio__wd_open_sync (struct etp_tmpbuf tmpbuf, eio_wd wd, const char path)
		1627	{
		1628	int fd;
		1629	eio_wd res;
		1630	int len = eio__realpath (tmpbuf, wd, path);
		1631
		1632	if (len < 0)
		1633	return EIO_INVALID_WD;
1965		1634
1966	#if HAVE_AT	1635	#if HAVE_AT
		1636	fd = openat (WD2FD (wd), path, O_CLOEXEC \| O_SEARCH \| O_DIRECTORY);
1967		1637
1968	#define WD2FD(wd) ((wd) ? ((int)(long)(wd)) - 1 : AT_FDCWD)	1638	if (fd < 0)
1969		1639	return EIO_INVALID_WD;
1970	#ifndef O_SEARCH
1971	# define O_SEARCH O_RDONLY
1972	#endif	1640	#endif
		1641
		1642	res = malloc (sizeof (res) + len); / one extra 0-byte */
		1643
		1644	#if HAVE_AT
		1645	res->fd = fd;
		1646	#endif
		1647
		1648	res->len = len;
		1649	memcpy (res->str, tmpbuf->ptr, len);
		1650	res->str [len] = 0;
		1651
		1652	return res;
		1653	}
1973		1654
1974	eio_wd	1655	eio_wd
1975	eio_wd_open_sync (eio_wd wd, const char *path)	1656	eio_wd_open_sync (eio_wd wd, const char *path)
1976	{	1657	{
1977	int fd = openat (WD2FD (wd), path, O_CLOEXEC \| O_SEARCH \| O_DIRECTORY);	1658	struct etp_tmpbuf tmpbuf = { };
1978
1979	return fd >= 0 ? (eio_wd)(long)(fd + 1) : EIO_INVALID_WD;
1980	}
1981
1982	static eio_wd
1983	eio__wd_open_sync (struct tmpbuf tmpbuf, eio_wd wd, const char path)
1984	{
1985	return eio_wd_open_sync (wd, path);	1659	wd = eio__wd_open_sync (&tmpbuf, wd, path);
		1660	free (tmpbuf.ptr);
		1661
		1662	return wd;
1986	}	1663	}
1987		1664
1988	void	1665	void
1989	eio_wd_close_sync (eio_wd wd)	1666	eio_wd_close_sync (eio_wd wd)
1990	{	1667	{
1991	int fd = WD2FD (wd);	1668	if (wd != EIO_INVALID_WD && wd != EIO_CWD)
1992		1669	{
1993	if (fd >= 0)	1670	#if HAVE_AT
1994	close (fd);	1671	close (wd->fd);
		1672	#endif
		1673	free (wd);
		1674	}
1995	}	1675	}
		1676
		1677	#if HAVE_AT
		1678
		1679	/* they forgot these */
1996		1680
1997	static int	1681	static int
1998	eio__truncateat (int dirfd, const char *path, off_t length)	1682	eio__truncateat (int dirfd, const char *path, off_t length)
1999	{	1683	{
2000	int fd = openat (dirfd, path, O_WRONLY \| O_CLOEXEC);	1684	int fd = openat (dirfd, path, O_WRONLY \| O_CLOEXEC);
…		…
2021	close (fd);	1705	close (fd);
2022	return res;	1706	return res;
2023		1707
2024	}	1708	}
2025		1709
2026	#else
2027
2028	/* on legacy systems, we represent the working directories simply by their path strings */
2029
2030	static const char *
2031	wd_expand (struct tmpbuf tmpbuf, eio_wd wd, const char path)
2032	{
2033	if (!wd \|\| *path == '/')
2034	return path;
2035
2036	{
2037	int l1 = strlen ((const char *)wd);
2038	int l2 = strlen (path);
2039
2040	char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2);
2041
2042	memcpy (res, wd, l1);
2043	res [l1] = '/';
2044	memcpy (res + l1 + 1, path, l2 + 1);
2045
2046	return res;
2047	}
2048	}
2049
2050	static eio_wd
2051	eio__wd_open_sync (struct tmpbuf tmpbuf, eio_wd wd, const char path)
2052	{
2053	if (path == '/') / absolute paths ignore wd */
2054	path = strdup (path);
2055	else if (path [0] == '.' && !path [1]) /* special case '.', as it is common */
2056	return wd;
2057	else
2058	{
2059	int len = eio__realpath (tmpbuf, wd, path);
2060
2061	path = EIO_INVALID_WD;
2062
2063	if (len >= 0)
2064	{
2065	((char *)tmpbuf->ptr)[len] = 0;
2066	path = strdup (tmpbuf->ptr);
2067	}
2068	}
2069
2070	if (!path)
2071	path = EIO_INVALID_WD;
2072
2073	return (eio_wd)path;
2074	}
2075
2076	eio_wd
2077	eio_wd_open_sync (eio_wd wd, const char *path)
2078	{
2079	struct tmpbuf tmpbuf = { 0 };
2080	wd = eio__wd_open_sync (&tmpbuf, wd, path);
2081	free (tmpbuf.ptr);
2082
2083	return wd;
2084	}
2085
2086	void
2087	eio_wd_close_sync (eio_wd wd)
2088	{
2089	if (wd != EIO_INVALID_WD)
2090	free (wd);
2091	}
2092
2093	#endif	1710	#endif
2094		1711
2095	/*****************************************************************************/	1712	/*****************************************************************************/
2096		1713
2097	#define ALLOC(len) \	1714	#define ALLOC(len) \
2098	if (!req->ptr2) \	1715	if (!req->ptr2) \
2099	{ \	1716	{ \
2100	X_LOCK (wrklock); \	1717	X_LOCK (EIO_POOL->wrklock); \
2101	req->flags \|= EIO_FLAG_PTR2_FREE; \	1718	req->flags \|= EIO_FLAG_PTR2_FREE; \
2102	X_UNLOCK (wrklock); \	1719	X_UNLOCK (EIO_POOL->wrklock); \
2103	req->ptr2 = malloc (len); \	1720	req->ptr2 = malloc (len); \
2104	if (!req->ptr2) \	1721	if (!req->ptr2) \
2105	{ \	1722	{ \
2106	errno = ENOMEM; \	1723	errno = ENOMEM; \
2107	req->result = -1; \	1724	req->result = -1; \
2108	break; \	1725	break; \
2109	} \	1726	} \
2110	}	1727	}
2111		1728
2112	X_THREAD_PROC (etp_proc)
2113	{
2114	ETP_REQ *req;
2115	struct timespec ts;
2116	etp_worker self = (etp_worker )thr_arg;
2117
2118	#if HAVE_PRCTL_SET_NAME
2119	prctl (PR_SET_NAME, (unsigned long)"eio_thread", 0, 0, 0);
2120	#endif
2121
2122	/* try to distribute timeouts somewhat evenly */
2123	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
2124
2125	for (;;)
2126	{
2127	ts.tv_sec = 0;
2128
2129	X_LOCK (reqlock);
2130
2131	for (;;)
2132	{
2133	req = reqq_shift (&req_queue);
2134
2135	if (req)
2136	break;
2137
2138	if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */
2139	{
2140	X_UNLOCK (reqlock);
2141	X_LOCK (wrklock);
2142	--started;
2143	X_UNLOCK (wrklock);
2144	goto quit;
2145	}
2146
2147	++idle;
2148
2149	if (idle <= max_idle)
2150	/* we are allowed to idle, so do so without any timeout */
2151	X_COND_WAIT (reqwait, reqlock);
2152	else
2153	{
2154	/* initialise timeout once */
2155	if (!ts.tv_sec)
2156	ts.tv_sec = time (0) + idle_timeout;
2157
2158	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT)
2159	ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */
2160	}
2161
2162	--idle;
2163	}
2164
2165	--nready;
2166
2167	X_UNLOCK (reqlock);
2168
2169	if (req->type < 0)
2170	goto quit;
2171
2172	ETP_EXECUTE (self, req);
2173
2174	X_LOCK (reslock);
2175
2176	++npending;
2177
2178	if (!reqq_push (&res_queue, req) && want_poll_cb)
2179	want_poll_cb ();
2180
2181	etp_worker_clear (self);
2182
2183	X_UNLOCK (reslock);
2184	}
2185
2186	quit:
2187	free (req);
2188
2189	X_LOCK (wrklock);
2190	etp_worker_free (self);
2191	X_UNLOCK (wrklock);
2192
2193	return 0;
2194	}
2195
2196	/*****************************************************************************/	1729	/*****************************************************************************/
2197		1730
2198	int ecb_cold	1731	int ecb_cold
2199	eio_init (void (want_poll)(void), void (done_poll)(void))	1732	eio_init (void (want_poll)(void), void (done_poll)(void))
2200	{	1733	{
2201	#if !HAVE_PREADWRITE	1734	eio_want_poll_cb = want_poll;
2202	X_MUTEX_CREATE (preadwritelock);	1735	eio_done_poll_cb = done_poll;
2203	#endif
2204		1736
2205	return etp_init (want_poll, done_poll);	1737	return etp_init (EIO_POOL, 0, 0, 0);
2206	}	1738	}
2207		1739
2208	ecb_inline void	1740	ecb_inline void
2209	eio_api_destroy (eio_req *req)	1741	eio_api_destroy (eio_req *req)
2210	{	1742	{
2211	free (req);	1743	free (req);
2212	}	1744	}
2213		1745
2214	#define REQ(rtype) \	1746	#define REQ(rtype) \
2215	eio_req *req; \	1747	eio_req *req; \
2216	\	1748	\
2217	req = (eio_req )calloc (1, sizeof req); \	1749	req = (eio_req )calloc (1, sizeof req); \
2218	if (!req) \	1750	if (!req) \
2219	return 0; \	1751	return 0; \
…		…
2233	{ \	1765	{ \
2234	eio_api_destroy (req); \	1766	eio_api_destroy (req); \
2235	return 0; \	1767	return 0; \
2236	}	1768	}
2237		1769
		1770	#define SINGLEDOT(ptr) (0[(char )(ptr)] == '.' && !1[(char )(ptr)])
		1771
2238	static void	1772	static void
2239	eio_execute (etp_worker self, eio_req req)	1773	eio_execute (etp_worker self, eio_req req)
2240	{	1774	{
2241	#if HAVE_AT	1775	#if HAVE_AT
2242	int dirfd;	1776	int dirfd;
…		…
2270	switch (req->type)	1804	switch (req->type)
2271	{	1805	{
2272	case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);	1806	case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);
2273	req->result = req->wd == EIO_INVALID_WD ? -1 : 0;	1807	req->result = req->wd == EIO_INVALID_WD ? -1 : 0;
2274	break;	1808	break;
		1809	case EIO_WD_CLOSE: req->result = 0;
		1810	eio_wd_close_sync (req->wd); break;
		1811
2275	case EIO_WD_CLOSE: eio_wd_close_sync (req->wd); break;	1812	case EIO_SEEK: eio__lseek (req); break;
2276
2277	case EIO_READ: ALLOC (req->size);	1813	case EIO_READ: ALLOC (req->size);
2278	req->result = req->offs >= 0	1814	req->result = req->offs >= 0
2279	? pread (req->int1, req->ptr2, req->size, req->offs)	1815	? pread (req->int1, req->ptr2, req->size, req->offs)
2280	: read (req->int1, req->ptr2, req->size); break;	1816	: read (req->int1, req->ptr2, req->size); break;
2281	case EIO_WRITE: req->result = req->offs >= 0	1817	case EIO_WRITE: req->result = req->offs >= 0
…		…
2284		1820
2285	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	1821	case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
2286	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;	1822	case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
2287		1823
2288	#if HAVE_AT	1824	#if HAVE_AT
		1825
2289	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	1826	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2290	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;	1827	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;
2291	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	1828	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2292	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;	1829	req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;
2293	case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;	1830	case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;
2294	case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;	1831	case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;
2295	case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;	1832	case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;
2296	case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;	1833	case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;
2297		1834
2298	case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;	1835	case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;
2299	case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;	1836	case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */
		1837	req->result = req->wd && SINGLEDOT (req->ptr1)
		1838	? rmdir (req->wd->str)
		1839	: unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;
2300	case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;	1840	case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;
2301	case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD (req->int3), req->ptr2); break;	1841	case EIO_RENAME: /* complications arise because "." cannot be renamed, so we might have to expand */
		1842	req->result = req->wd && SINGLEDOT (req->ptr1)
		1843	? rename (req->wd->str, req->ptr2)
		1844	: renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break;
2302	case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD (req->int3), req->ptr2, 0); break;	1845	case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break;
2303	case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;	1846	case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;
2304	case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;	1847	case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
2305	case EIO_READLINK: ALLOC (PATH_MAX);	1848	case EIO_READLINK: ALLOC (PATH_MAX);
2306	req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;	1849	req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;
2307	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));	1850	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2308	req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;	1851	req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
		1852	case EIO_UTIME:
		1853	case EIO_FUTIME:
		1854	{
		1855	struct timespec ts[2];
		1856	struct timespec *times;
		1857
		1858	if (req->nv1 != -1. \|\| req->nv2 != -1.)
		1859	{
		1860	ts[0].tv_sec = req->nv1;
		1861	ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9;
		1862	ts[1].tv_sec = req->nv2;
		1863	ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9;
		1864
		1865	times = ts;
		1866	}
		1867	else
		1868	times = 0;
		1869
		1870	req->result = req->type == EIO_FUTIME
		1871	? futimens (req->int1, times)
		1872	: utimensat (dirfd, req->ptr1, times, 0);
		1873	}
		1874	break;
		1875
2309	#else	1876	#else
		1877
2310	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));	1878	case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2311	req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;	1879	req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
2312	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));	1880	case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2313	req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;	1881	req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
2314	case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;	1882	case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;
…		…
2325	case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;	1893	case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;
2326	case EIO_READLINK: ALLOC (PATH_MAX);	1894	case EIO_READLINK: ALLOC (PATH_MAX);
2327	req->result = readlink (path, req->ptr2, PATH_MAX); break;	1895	req->result = readlink (path, req->ptr2, PATH_MAX); break;
2328	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));	1896	case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2329	req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;	1897	req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;
		1898
		1899	case EIO_UTIME:
		1900	case EIO_FUTIME:
		1901	{
		1902	struct timeval tv[2];
		1903	struct timeval *times;
		1904
		1905	if (req->nv1 != -1. \|\| req->nv2 != -1.)
		1906	{
		1907	tv[0].tv_sec = req->nv1;
		1908	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6;
		1909	tv[1].tv_sec = req->nv2;
		1910	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6;
		1911
		1912	times = tv;
		1913	}
		1914	else
		1915	times = 0;
		1916
		1917	req->result = req->type == EIO_FUTIME
		1918	? futimes (req->int1, times)
		1919	: utimes (req->ptr1, times);
		1920	}
		1921	break;
		1922
2330	#endif	1923	#endif
2331		1924
2332	case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))	1925	case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))
2333	{	1926	{
2334	ALLOC (req->result);	1927	ALLOC (req->result);
…		…
2357	case EIO_MTOUCH: req->result = eio__mtouch (req); break;	1950	case EIO_MTOUCH: req->result = eio__mtouch (req); break;
2358	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;	1951	case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
2359	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;	1952	case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
2360	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;	1953	case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
2361		1954
2362	case EIO_READDIR: eio__scandir (req); break;	1955	case EIO_READDIR: eio__scandir (req, self); break;
2363		1956
2364	case EIO_BUSY:	1957	case EIO_BUSY:
2365	#ifdef _WIN32	1958	#ifdef _WIN32
2366	Sleep (req->nv1 * 1e3);	1959	Sleep (req->nv1 * 1e3);
2367	#else	1960	#else
…		…
2374	req->result = select (0, 0, 0, 0, &tv);	1967	req->result = select (0, 0, 0, 0, &tv);
2375	}	1968	}
2376	#endif	1969	#endif
2377	break;	1970	break;
2378		1971
2379	case EIO_UTIME:	1972	#if 0
2380	case EIO_FUTIME:
2381	{
2382	struct timeval tv[2];
2383	struct timeval *times;
2384
2385	if (req->nv1 != -1. \|\| req->nv2 != -1.)
2386	{
2387	tv[0].tv_sec = req->nv1;
2388	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
2389	tv[1].tv_sec = req->nv2;
2390	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
2391
2392	times = tv;
2393	}
2394	else
2395	times = 0;
2396
2397	req->result = req->type == EIO_FUTIME
2398	? futimes (req->int1, times)
2399	: utimes (req->ptr1, times);
2400	}
2401	break;
2402
2403	case EIO_GROUP:	1973	case EIO_GROUP:
2404	abort (); /* handled in eio_request */	1974	abort (); /* handled in eio_request */
		1975	#endif
2405		1976
2406	case EIO_NOP:	1977	case EIO_NOP:
2407	req->result = 0;	1978	req->result = 0;
2408	break;	1979	break;
2409		1980
2410	case EIO_CUSTOM:	1981	case EIO_CUSTOM:
2411	req->feed (req);	1982	req->feed (req);
2412	break;	1983	break;
2413		1984
2414	default:	1985	default:
2415	errno = ENOSYS;
2416	req->result = -1;	1986	req->result = EIO_ENOSYS ();
2417	break;	1987	break;
2418	}	1988	}
2419		1989
2420	req->errorno = errno;	1990	req->errorno = errno;
2421	}	1991	}
2422		1992
2423	#ifndef EIO_NO_WRAPPERS	1993	#ifndef EIO_NO_WRAPPERS
2424		1994
		1995	eio_req eio_wd_open (const char path, int pri, eio_cb cb, void *data)
		1996	{
		1997	REQ (EIO_WD_OPEN); PATH; SEND;
		1998	}
		1999
		2000	eio_req eio_wd_close (eio_wd wd, int pri, eio_cb cb, void data)
		2001	{
		2002	REQ (EIO_WD_CLOSE); req->wd = wd; SEND;
		2003	}
		2004
2425	eio_req eio_nop (int pri, eio_cb cb, void data)	2005	eio_req eio_nop (int pri, eio_cb cb, void data)
2426	{	2006	{
2427	REQ (EIO_NOP); SEND;	2007	REQ (EIO_NOP); SEND;
2428	}	2008	}
2429		2009
…		…
2488	}	2068	}
2489		2069
2490	eio_req eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void data)	2070	eio_req eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void data)
2491	{	2071	{
2492	REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;	2072	REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
		2073	}
		2074
		2075	eio_req eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void data)
		2076	{
		2077	REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND;
2493	}	2078	}
2494		2079
2495	eio_req eio_read (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)	2080	eio_req eio_read (int fd, void buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
2496	{	2081	{
2497	REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;	2082	REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
…		…
2695	void	2280	void
2696	eio_grp_add (eio_req grp, eio_req req)	2281	eio_grp_add (eio_req grp, eio_req req)
2697	{	2282	{
2698	assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2));	2283	assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2));
2699		2284
2700	grp->flags \|= EIO_FLAG_GROUPADD;	2285	grp->flags \|= ETP_FLAG_GROUPADD;
2701		2286
2702	++grp->size;	2287	++grp->size;
2703	req->grp = grp;	2288	req->grp = grp;
2704		2289
2705	req->grp_prev = 0;	2290	req->grp_prev = 0;

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Comparing libeio/eio.c (file contents): Revision 1.105 by root, Mon Sep 26 18:23:18 2011 UTC vs. Revision 1.139 by root, Thu Jun 25 18:14:19 2015 UTC

Diff Legend

Comparing libeio/eio.c (file contents):
Revision 1.105 by root, Mon Sep 26 18:23:18 2011 UTC vs.
Revision 1.139 by root, Thu Jun 25 18:14:19 2015 UTC