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Comparing libeio/eio.c (file contents):
Revision 1.53 by root, Sat Jan 9 10:03:09 2010 UTC vs.
Revision 1.118 by root, Mon Apr 2 17:53:27 2012 UTC

1/* 1/*
2 * libeio implementation 2 * libeio implementation
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 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 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifndef _WIN32
41# include "config.h"
42#endif
43
40#include "eio.h" 44#include "eio.h"
45#include "ecb.h"
41 46
42#ifdef EIO_STACKSIZE 47#ifdef EIO_STACKSIZE
43# define XTHREAD_STACKSIZE EIO_STACKSIZE 48# define X_STACKSIZE EIO_STACKSIZE
44#endif 49#endif
45#include "xthread.h" 50#include "xthread.h"
46 51
47#include <errno.h> 52#include <errno.h>
48#include <stddef.h> 53#include <stddef.h>
49#include <stdlib.h> 54#include <stdlib.h>
50#include <string.h> 55#include <string.h>
51#include <errno.h> 56#include <errno.h>
52#include <sys/types.h> 57#include <sys/types.h>
53#include <sys/stat.h> 58#include <sys/stat.h>
54#include <sys/statvfs.h>
55#include <limits.h> 59#include <limits.h>
56#include <fcntl.h> 60#include <fcntl.h>
57#include <assert.h> 61#include <assert.h>
58 62
63/* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */
64/* intptr_t only comes from stdint.h, says idiot openbsd coder */
65#if HAVE_STDINT_H
66# include <stdint.h>
67#endif
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
80static void eio_destroy (eio_req *req);
81
59#ifndef EIO_FINISH 82#ifndef EIO_FINISH
60# 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
61#endif 84#endif
62 85
63#ifndef EIO_DESTROY 86#ifndef EIO_DESTROY
… …
66 89
67#ifndef EIO_FEED 90#ifndef EIO_FEED
68# 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)
69#endif 92#endif
70 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
71#ifdef _WIN32 105#ifdef _WIN32
72 106
73 /*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 /* rename() uses MoveFile, which fails to overwrite */
138 #define rename(old,neu) eio__rename (old, neu)
139
140 static int
141 eio__rename (const char *old, const char *neu)
142 {
143 if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING))
144 return 0;
145
146 /* should steal _dosmaperr */
147 switch (GetLastError ())
148 {
149 case ERROR_FILE_NOT_FOUND:
150 case ERROR_PATH_NOT_FOUND:
151 case ERROR_INVALID_DRIVE:
152 case ERROR_NO_MORE_FILES:
153 case ERROR_BAD_NETPATH:
154 case ERROR_BAD_NET_NAME:
155 case ERROR_BAD_PATHNAME:
156 case ERROR_FILENAME_EXCED_RANGE:
157 errno = ENOENT;
158 break;
159
160 default:
161 errno = EACCES;
162 break;
163 }
164
165 return -1;
166 }
167
168 /* we could even stat and see if it exists */
169 static int
170 symlink (const char *old, const char *neu)
171 {
172 #if WINVER >= 0x0600
173 if (CreateSymbolicLink (neu, old, 1))
174 return 0;
175
176 if (CreateSymbolicLink (neu, old, 0))
177 return 0;
178 #endif
179
180 return EIO_ERRNO (ENOENT, -1);
181 }
182
183 /* POSIX API only */
184 #define CreateHardLink(neu,old,flags) 0
185 #define CreateSymbolicLink(neu,old,flags) 0
186
187 struct statvfs
188 {
189 int dummy;
190 };
191
192 #define DT_DIR EIO_DT_DIR
193 #define DT_REG EIO_DT_REG
194 #define D_NAME(entp) entp.cFileName
195 #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG)
196
74#else 197#else
75 198
76# include "config.h"
77# include <sys/time.h> 199 #include <sys/time.h>
78# include <sys/select.h> 200 #include <sys/select.h>
79# include <sys/mman.h> 201 #include <sys/statvfs.h>
80# include <unistd.h> 202 #include <unistd.h>
203 #include <signal.h>
204 #include <dirent.h>
205
206 #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
207 #include <sys/mman.h>
208 #endif
209
210 #define D_NAME(entp) entp->d_name
211
212 /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
213 #if __FreeBSD__ || __NetBSD__ || __OpenBSD__
214 #define _DIRENT_HAVE_D_TYPE /* sigh */
215 #define D_INO(de) (de)->d_fileno
216 #define D_NAMLEN(de) (de)->d_namlen
217 #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600
218 #define D_INO(de) (de)->d_ino
219 #endif
220
221 #ifdef _D_EXACT_NAMLEN
222 #undef D_NAMLEN
223 #define D_NAMLEN(de) _D_EXACT_NAMLEN (de)
224 #endif
225
226 #ifdef _DIRENT_HAVE_D_TYPE
227 #define D_TYPE(de) (de)->d_type
228 #endif
229
230 #ifndef EIO_STRUCT_DIRENT
231 #define EIO_STRUCT_DIRENT struct dirent
232 #endif
233
234#endif
235
236#if HAVE_UTIMES
81# include <utime.h> 237# include <utime.h>
82# include <signal.h>
83# include <dirent.h>
84
85/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
86# if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
87# define _DIRENT_HAVE_D_TYPE /* sigh */
88# define D_INO(de) (de)->d_fileno
89# define D_NAMLEN(de) (de)->d_namlen
90# elif __linux || defined d_ino || _XOPEN_SOURCE >= 600
91# define D_INO(de) (de)->d_ino
92# endif 238#endif
93 239
94#ifdef _D_EXACT_NAMLEN 240#if HAVE_SYS_SYSCALL_H
95# undef D_NAMLEN 241# include <sys/syscall.h>
96# define D_NAMLEN(de) _D_EXACT_NAMLEN (de)
97#endif
98
99# ifdef _DIRENT_HAVE_D_TYPE
100# define D_TYPE(de) (de)->d_type
101# endif 242#endif
102 243
103# ifndef EIO_STRUCT_DIRENT 244#if HAVE_SYS_PRCTL_H
104# define EIO_STRUCT_DIRENT struct dirent 245# include <sys/prctl.h>
105# endif
106
107#endif 246#endif
108 247
109#if HAVE_SENDFILE 248#if HAVE_SENDFILE
110# if __linux 249# if __linux
111# include <sys/sendfile.h> 250# include <sys/sendfile.h>
… …
126#endif 265#endif
127#ifndef D_INO 266#ifndef D_INO
128# define D_INO(de) 0 267# define D_INO(de) 0
129#endif 268#endif
130#ifndef D_NAMLEN 269#ifndef D_NAMLEN
131# define D_NAMLEN(de) strlen ((de)->d_name) 270# define D_NAMLEN(entp) strlen (D_NAME (entp))
132#endif 271#endif
133
134/* number of seconds after which an idle threads exit */
135#define IDLE_TIMEOUT 10
136 272
137/* used for struct dirent, AIX doesn't provide it */ 273/* used for struct dirent, AIX doesn't provide it */
138#ifndef NAME_MAX 274#ifndef NAME_MAX
139# define NAME_MAX 4096 275# define NAME_MAX 4096
140#endif 276#endif
141 277
278/* used for readlink etc. */
279#ifndef PATH_MAX
280# define PATH_MAX 4096
281#endif
282
142/* buffer size for various temporary buffers */ 283/* buffer size for various temporary buffers */
143#define EIO_BUFSIZE 65536 284#define EIO_BUFSIZE 65536
144 285
145#define dBUF \ 286#define dBUF \
146 char *eio_buf; \
147 ETP_WORKER_LOCK (self); \
148 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ 287 char *eio_buf = malloc (EIO_BUFSIZE); \
149 ETP_WORKER_UNLOCK (self); \
150 errno = ENOMEM; \ 288 errno = ENOMEM; \
151 if (!eio_buf) \ 289 if (!eio_buf) \
152 return -1; 290 return -1
291
292#define FUBd \
293 free (eio_buf)
153 294
154#define EIO_TICKS ((1000000 + 1023) >> 10) 295#define EIO_TICKS ((1000000 + 1023) >> 10)
155 296
156/*****************************************************************************/ 297/*****************************************************************************/
157 298
158#if __GNUC__ >= 3 299struct tmpbuf
159# define expect(expr,value) __builtin_expect ((expr),(value)) 300{
301 void *ptr;
302 int len;
303};
304
305static void *
306tmpbuf_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
317struct tmpbuf;
318
319#if _POSIX_VERSION >= 200809L
320 #define HAVE_AT 1
321 #define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD)
322 #ifndef O_SEARCH
323 #define O_SEARCH O_RDONLY
324 #endif
160#else 325#else
161# define expect(expr,value) (expr) 326 #define HAVE_AT 0
327 static const char *wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path);
162#endif 328#endif
163 329
164#define expect_false(expr) expect ((expr) != 0, 0) 330struct eio_pwd
165#define expect_true(expr) expect ((expr) != 0, 1) 331{
332#if HAVE_AT
333 int fd;
334#endif
335 int len;
336 char str[1]; /* actually, a 0-terminated canonical path */
337};
166 338
167/*****************************************************************************/ 339/*****************************************************************************/
168 340
169#define ETP_PRI_MIN EIO_PRI_MIN 341#define ETP_PRI_MIN EIO_PRI_MIN
170#define ETP_PRI_MAX EIO_PRI_MAX 342#define ETP_PRI_MAX EIO_PRI_MAX
… …
176static int eio_finish (eio_req *req); 348static int eio_finish (eio_req *req);
177#define ETP_FINISH(req) eio_finish (req) 349#define ETP_FINISH(req) eio_finish (req)
178static void eio_execute (struct etp_worker *self, eio_req *req); 350static void eio_execute (struct etp_worker *self, eio_req *req);
179#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) 351#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)
180 352
181#define ETP_WORKER_CLEAR(req) \
182 if (wrk->dbuf) \
183 { \
184 free (wrk->dbuf); \
185 wrk->dbuf = 0; \
186 } \
187 \
188 if (wrk->dirp) \
189 { \
190 closedir (wrk->dirp); \
191 wrk->dirp = 0; \
192 }
193
194#define ETP_WORKER_COMMON \
195 void *dbuf; \
196 DIR *dirp;
197
198/*****************************************************************************/ 353/*****************************************************************************/
199 354
200#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) 355#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)
201 356
202/* calculate time difference in ~1/EIO_TICKS of a second */ 357/* calculate time difference in ~1/EIO_TICKS of a second */
358ecb_inline int
203static int tvdiff (struct timeval *tv1, struct timeval *tv2) 359tvdiff (struct timeval *tv1, struct timeval *tv2)
204{ 360{
205 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS 361 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
206 + ((tv2->tv_usec - tv1->tv_usec) >> 10); 362 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
207} 363}
208 364
… …
212static void (*done_poll_cb) (void); 368static void (*done_poll_cb) (void);
213 369
214static unsigned int max_poll_time; /* reslock */ 370static unsigned int max_poll_time; /* reslock */
215static unsigned int max_poll_reqs; /* reslock */ 371static unsigned int max_poll_reqs; /* reslock */
216 372
217static volatile unsigned int nreqs; /* reqlock */ 373static unsigned int nreqs; /* reqlock */
218static volatile unsigned int nready; /* reqlock */ 374static unsigned int nready; /* reqlock */
219static volatile unsigned int npending; /* reqlock */ 375static unsigned int npending; /* reqlock */
220static volatile unsigned int max_idle = 4; 376static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */
377static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */
221 378
222static mutex_t wrklock = X_MUTEX_INIT; 379static xmutex_t wrklock;
223static mutex_t reslock = X_MUTEX_INIT; 380static xmutex_t reslock;
224static mutex_t reqlock = X_MUTEX_INIT; 381static xmutex_t reqlock;
225static cond_t reqwait = X_COND_INIT; 382static xcond_t reqwait;
226 383
227#if !HAVE_PREADWRITE 384#if !HAVE_PREADWRITE
228/* 385/*
229 * make our pread/pwrite emulation safe against themselves, but not against 386 * make our pread/pwrite emulation safe against themselves, but not against
230 * normal read/write by using a mutex. slows down execution a lot, 387 * normal read/write by using a mutex. slows down execution a lot,
231 * but that's your problem, not mine. 388 * but that's your problem, not mine.
232 */ 389 */
233static mutex_t preadwritelock = X_MUTEX_INIT; 390static xmutex_t preadwritelock;
234#endif 391#endif
235 392
236typedef struct etp_worker 393typedef struct etp_worker
237{ 394{
395 struct tmpbuf tmpbuf;
396
238 /* locked by wrklock */ 397 /* locked by wrklock */
239 struct etp_worker *prev, *next; 398 struct etp_worker *prev, *next;
240 399
241 thread_t tid; 400 xthread_t tid;
242 401
243 /* locked by reslock, reqlock or wrklock */ 402#ifdef ETP_WORKER_COMMON
244 ETP_REQ *req; /* currently processed request */
245
246 ETP_WORKER_COMMON 403 ETP_WORKER_COMMON
404#endif
247} etp_worker; 405} etp_worker;
248 406
249static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ 407static etp_worker wrk_first; /* NOT etp */
250 408
251#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) 409#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
252#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) 410#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
253 411
254/* worker threads management */ 412/* worker threads management */
255 413
414static void
256static void etp_worker_clear (etp_worker *wrk) 415etp_worker_clear (etp_worker *wrk)
257{ 416{
258 ETP_WORKER_CLEAR (wrk);
259} 417}
260 418
419static void ecb_cold
261static void etp_worker_free (etp_worker *wrk) 420etp_worker_free (etp_worker *wrk)
262{ 421{
422 free (wrk->tmpbuf.ptr);
423
263 wrk->next->prev = wrk->prev; 424 wrk->next->prev = wrk->prev;
264 wrk->prev->next = wrk->next; 425 wrk->prev->next = wrk->next;
265 426
266 free (wrk); 427 free (wrk);
267} 428}
268 429
269static unsigned int etp_nreqs (void) 430static unsigned int
431etp_nreqs (void)
270{ 432{
271 int retval; 433 int retval;
272 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 434 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
273 retval = nreqs; 435 retval = nreqs;
274 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 436 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
275 return retval; 437 return retval;
276} 438}
277 439
278static unsigned int etp_nready (void) 440static unsigned int
441etp_nready (void)
279{ 442{
280 unsigned int retval; 443 unsigned int retval;
281 444
282 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 445 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
283 retval = nready; 446 retval = nready;
284 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 447 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
285 448
286 return retval; 449 return retval;
287} 450}
288 451
289static unsigned int etp_npending (void) 452static unsigned int
453etp_npending (void)
290{ 454{
291 unsigned int retval; 455 unsigned int retval;
292 456
293 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 457 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
294 retval = npending; 458 retval = npending;
295 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 459 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
296 460
297 return retval; 461 return retval;
298} 462}
299 463
300static unsigned int etp_nthreads (void) 464static unsigned int
465etp_nthreads (void)
301{ 466{
302 unsigned int retval; 467 unsigned int retval;
303 468
304 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 469 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
305 retval = started; 470 retval = started;
… …
319} etp_reqq; 484} etp_reqq;
320 485
321static etp_reqq req_queue; 486static etp_reqq req_queue;
322static etp_reqq res_queue; 487static etp_reqq res_queue;
323 488
489static void ecb_noinline ecb_cold
490reqq_init (etp_reqq *q)
491{
492 int pri;
493
494 for (pri = 0; pri < ETP_NUM_PRI; ++pri)
495 q->qs[pri] = q->qe[pri] = 0;
496
497 q->size = 0;
498}
499
500static int ecb_noinline
324static int reqq_push (etp_reqq *q, ETP_REQ *req) 501reqq_push (etp_reqq *q, ETP_REQ *req)
325{ 502{
326 int pri = req->pri; 503 int pri = req->pri;
327 req->next = 0; 504 req->next = 0;
328 505
329 if (q->qe[pri]) 506 if (q->qe[pri])
… …
335 q->qe[pri] = q->qs[pri] = req; 512 q->qe[pri] = q->qs[pri] = req;
336 513
337 return q->size++; 514 return q->size++;
338} 515}
339 516
517static ETP_REQ * ecb_noinline
340static ETP_REQ *reqq_shift (etp_reqq *q) 518reqq_shift (etp_reqq *q)
341{ 519{
342 int pri; 520 int pri;
343 521
344 if (!q->size) 522 if (!q->size)
345 return 0; 523 return 0;
… …
360 } 538 }
361 539
362 abort (); 540 abort ();
363} 541}
364 542
365static void etp_atfork_prepare (void) 543static int ecb_cold
544etp_init (void (*want_poll)(void), void (*done_poll)(void))
366{ 545{
367 X_LOCK (wrklock); 546 X_MUTEX_CREATE (wrklock);
368 X_LOCK (reqlock); 547 X_MUTEX_CREATE (reslock);
369 X_LOCK (reslock); 548 X_MUTEX_CREATE (reqlock);
370#if !HAVE_PREADWRITE 549 X_COND_CREATE (reqwait);
371 X_LOCK (preadwritelock);
372#endif
373}
374 550
375static void etp_atfork_parent (void) 551 reqq_init (&req_queue);
376{ 552 reqq_init (&res_queue);
377#if !HAVE_PREADWRITE
378 X_UNLOCK (preadwritelock);
379#endif
380 X_UNLOCK (reslock);
381 X_UNLOCK (reqlock);
382 X_UNLOCK (wrklock);
383}
384 553
385static void etp_atfork_child (void) 554 wrk_first.next =
386{ 555 wrk_first.prev = &wrk_first;
387 ETP_REQ *prv;
388
389 while ((prv = reqq_shift (&req_queue)))
390 ETP_DESTROY (prv);
391
392 while ((prv = reqq_shift (&res_queue)))
393 ETP_DESTROY (prv);
394
395 while (wrk_first.next != &wrk_first)
396 {
397 etp_worker *wrk = wrk_first.next;
398
399 if (wrk->req)
400 ETP_DESTROY (wrk->req);
401
402 etp_worker_clear (wrk);
403 etp_worker_free (wrk);
404 }
405 556
406 started = 0; 557 started = 0;
407 idle = 0; 558 idle = 0;
408 nreqs = 0; 559 nreqs = 0;
409 nready = 0; 560 nready = 0;
410 npending = 0; 561 npending = 0;
411 562
412 etp_atfork_parent ();
413}
414
415static void
416etp_once_init (void)
417{
418 X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child);
419}
420
421static int
422etp_init (void (*want_poll)(void), void (*done_poll)(void))
423{
424 static pthread_once_t doinit = PTHREAD_ONCE_INIT;
425
426 pthread_once (&doinit, etp_once_init);
427
428 want_poll_cb = want_poll; 563 want_poll_cb = want_poll;
429 done_poll_cb = done_poll; 564 done_poll_cb = done_poll;
430 565
431 return 0; 566 return 0;
432} 567}
433 568
434X_THREAD_PROC (etp_proc); 569X_THREAD_PROC (etp_proc);
435 570
571static void ecb_cold
436static void etp_start_thread (void) 572etp_start_thread (void)
437{ 573{
438 etp_worker *wrk = calloc (1, sizeof (etp_worker)); 574 etp_worker *wrk = calloc (1, sizeof (etp_worker));
439 575
440 /*TODO*/ 576 /*TODO*/
441 assert (("unable to allocate worker thread data", wrk)); 577 assert (("unable to allocate worker thread data", wrk));
… …
454 free (wrk); 590 free (wrk);
455 591
456 X_UNLOCK (wrklock); 592 X_UNLOCK (wrklock);
457} 593}
458 594
595static void
459static void etp_maybe_start_thread (void) 596etp_maybe_start_thread (void)
460{ 597{
461 if (expect_true (etp_nthreads () >= wanted)) 598 if (ecb_expect_true (etp_nthreads () >= wanted))
462 return; 599 return;
463 600
464 /* todo: maybe use idle here, but might be less exact */ 601 /* todo: maybe use idle here, but might be less exact */
465 if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) 602 if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ()))
466 return; 603 return;
467 604
468 etp_start_thread (); 605 etp_start_thread ();
469} 606}
470 607
608static void ecb_cold
471static void etp_end_thread (void) 609etp_end_thread (void)
472{ 610{
473 eio_req *req = calloc (1, sizeof (eio_req)); 611 eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */
474 612
475 req->type = -1; 613 req->type = -1;
476 req->pri = ETP_PRI_MAX - ETP_PRI_MIN; 614 req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
477 615
478 X_LOCK (reqlock); 616 X_LOCK (reqlock);
… …
483 X_LOCK (wrklock); 621 X_LOCK (wrklock);
484 --started; 622 --started;
485 X_UNLOCK (wrklock); 623 X_UNLOCK (wrklock);
486} 624}
487 625
488static int etp_poll (void) 626static int
627etp_poll (void)
489{ 628{
490 unsigned int maxreqs; 629 unsigned int maxreqs;
491 unsigned int maxtime; 630 unsigned int maxtime;
492 struct timeval tv_start, tv_now; 631 struct timeval tv_start, tv_now;
493 632
… …
523 662
524 X_LOCK (reqlock); 663 X_LOCK (reqlock);
525 --nreqs; 664 --nreqs;
526 X_UNLOCK (reqlock); 665 X_UNLOCK (reqlock);
527 666
528 if (expect_false (req->type == EIO_GROUP && req->size)) 667 if (ecb_expect_false (req->type == EIO_GROUP && req->size))
529 { 668 {
530 req->int1 = 1; /* mark request as delayed */ 669 req->int1 = 1; /* mark request as delayed */
531 continue; 670 continue;
532 } 671 }
533 else 672 else
534 { 673 {
535 int res = ETP_FINISH (req); 674 int res = ETP_FINISH (req);
536 if (expect_false (res)) 675 if (ecb_expect_false (res))
537 return res; 676 return res;
538 } 677 }
539 678
540 if (expect_false (maxreqs && !--maxreqs)) 679 if (ecb_expect_false (maxreqs && !--maxreqs))
541 break; 680 break;
542 681
543 if (maxtime) 682 if (maxtime)
544 { 683 {
545 gettimeofday (&tv_now, 0); 684 gettimeofday (&tv_now, 0);
… …
551 690
552 errno = EAGAIN; 691 errno = EAGAIN;
553 return -1; 692 return -1;
554} 693}
555 694
695static void
556static void etp_cancel (ETP_REQ *req) 696etp_cancel (ETP_REQ *req)
557{ 697{
558 X_LOCK (wrklock); 698 req->cancelled = 1;
559 req->flags |= EIO_FLAG_CANCELLED;
560 X_UNLOCK (wrklock);
561 699
562 eio_grp_cancel (req); 700 eio_grp_cancel (req);
563} 701}
564 702
703static void
565static void etp_submit (ETP_REQ *req) 704etp_submit (ETP_REQ *req)
566{ 705{
567 req->pri -= ETP_PRI_MIN; 706 req->pri -= ETP_PRI_MIN;
568 707
569 if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; 708 if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN;
570 if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; 709 if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
571 710
572 if (expect_false (req->type == EIO_GROUP)) 711 if (ecb_expect_false (req->type == EIO_GROUP))
573 { 712 {
574 /* I hope this is worth it :/ */ 713 /* I hope this is worth it :/ */
575 X_LOCK (reqlock); 714 X_LOCK (reqlock);
576 ++nreqs; 715 ++nreqs;
577 X_UNLOCK (reqlock); 716 X_UNLOCK (reqlock);
… …
596 735
597 etp_maybe_start_thread (); 736 etp_maybe_start_thread ();
598 } 737 }
599} 738}
600 739
740static void ecb_cold
601static void etp_set_max_poll_time (double nseconds) 741etp_set_max_poll_time (double nseconds)
602{ 742{
603 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 743 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
604 max_poll_time = nseconds * EIO_TICKS; 744 max_poll_time = nseconds * EIO_TICKS;
605 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 745 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
606} 746}
607 747
748static void ecb_cold
608static void etp_set_max_poll_reqs (unsigned int maxreqs) 749etp_set_max_poll_reqs (unsigned int maxreqs)
609{ 750{
610 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 751 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
611 max_poll_reqs = maxreqs; 752 max_poll_reqs = maxreqs;
612 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 753 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
613} 754}
614 755
756static void ecb_cold
615static void etp_set_max_idle (unsigned int nthreads) 757etp_set_max_idle (unsigned int nthreads)
616{ 758{
617 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 759 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
618 max_idle = nthreads <= 0 ? 1 : nthreads; 760 max_idle = nthreads;
619 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 761 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
620} 762}
621 763
764static void ecb_cold
765etp_set_idle_timeout (unsigned int seconds)
766{
767 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
768 idle_timeout = seconds;
769 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
770}
771
772static void ecb_cold
622static void etp_set_min_parallel (unsigned int nthreads) 773etp_set_min_parallel (unsigned int nthreads)
623{ 774{
624 if (wanted < nthreads) 775 if (wanted < nthreads)
625 wanted = nthreads; 776 wanted = nthreads;
626} 777}
627 778
779static void ecb_cold
628static void etp_set_max_parallel (unsigned int nthreads) 780etp_set_max_parallel (unsigned int nthreads)
629{ 781{
630 if (wanted > nthreads) 782 if (wanted > nthreads)
631 wanted = nthreads; 783 wanted = nthreads;
632 784
633 while (started > wanted) 785 while (started > wanted)
634 etp_end_thread (); 786 etp_end_thread ();
635} 787}
636 788
637/*****************************************************************************/ 789/*****************************************************************************/
638 790
791static void
639static void grp_try_feed (eio_req *grp) 792grp_try_feed (eio_req *grp)
640{ 793{
641 while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) 794 while (grp->size < grp->int2 && !EIO_CANCELLED (grp))
642 { 795 {
643 grp->flags &= ~EIO_FLAG_GROUPADD; 796 grp->flags &= ~EIO_FLAG_GROUPADD;
644 797
… …
651 break; 804 break;
652 } 805 }
653 } 806 }
654} 807}
655 808
809static int
656static int grp_dec (eio_req *grp) 810grp_dec (eio_req *grp)
657{ 811{
658 --grp->size; 812 --grp->size;
659 813
660 /* call feeder, if applicable */ 814 /* call feeder, if applicable */
661 grp_try_feed (grp); 815 grp_try_feed (grp);
… …
665 return eio_finish (grp); 819 return eio_finish (grp);
666 else 820 else
667 return 0; 821 return 0;
668} 822}
669 823
824static void
670void eio_destroy (eio_req *req) 825eio_destroy (eio_req *req)
671{ 826{
672 if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); 827 if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);
673 if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); 828 if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);
674 829
675 EIO_DESTROY (req); 830 EIO_DESTROY (req);
676} 831}
677 832
833static int
678static int eio_finish (eio_req *req) 834eio_finish (eio_req *req)
679{ 835{
680 int res = EIO_FINISH (req); 836 int res = EIO_FINISH (req);
681 837
682 if (req->grp) 838 if (req->grp)
683 { 839 {
… …
691 if (grp->grp_first == req) 847 if (grp->grp_first == req)
692 grp->grp_first = req->grp_next; 848 grp->grp_first = req->grp_next;
693 849
694 res2 = grp_dec (grp); 850 res2 = grp_dec (grp);
695 851
696 if (!res && res2) 852 if (!res)
697 res = res2; 853 res = res2;
698 } 854 }
699 855
700 eio_destroy (req); 856 eio_destroy (req);
701 857
702 return res; 858 return res;
703} 859}
704 860
861void
705void eio_grp_cancel (eio_req *grp) 862eio_grp_cancel (eio_req *grp)
706{ 863{
707 for (grp = grp->grp_first; grp; grp = grp->grp_next) 864 for (grp = grp->grp_first; grp; grp = grp->grp_next)
708 eio_cancel (grp); 865 eio_cancel (grp);
709} 866}
710 867
868void
711void eio_cancel (eio_req *req) 869eio_cancel (eio_req *req)
712{ 870{
713 etp_cancel (req); 871 etp_cancel (req);
714} 872}
715 873
874void
716void eio_submit (eio_req *req) 875eio_submit (eio_req *req)
717{ 876{
718 etp_submit (req); 877 etp_submit (req);
719} 878}
720 879
721unsigned int eio_nreqs (void) 880unsigned int
881eio_nreqs (void)
722{ 882{
723 return etp_nreqs (); 883 return etp_nreqs ();
724} 884}
725 885
726unsigned int eio_nready (void) 886unsigned int
887eio_nready (void)
727{ 888{
728 return etp_nready (); 889 return etp_nready ();
729} 890}
730 891
731unsigned int eio_npending (void) 892unsigned int
893eio_npending (void)
732{ 894{
733 return etp_npending (); 895 return etp_npending ();
734} 896}
735 897
736unsigned int eio_nthreads (void) 898unsigned int ecb_cold
899eio_nthreads (void)
737{ 900{
738 return etp_nthreads (); 901 return etp_nthreads ();
739} 902}
740 903
904void ecb_cold
741void eio_set_max_poll_time (double nseconds) 905eio_set_max_poll_time (double nseconds)
742{ 906{
743 etp_set_max_poll_time (nseconds); 907 etp_set_max_poll_time (nseconds);
744} 908}
745 909
910void ecb_cold
746void eio_set_max_poll_reqs (unsigned int maxreqs) 911eio_set_max_poll_reqs (unsigned int maxreqs)
747{ 912{
748 etp_set_max_poll_reqs (maxreqs); 913 etp_set_max_poll_reqs (maxreqs);
749} 914}
750 915
916void ecb_cold
751void eio_set_max_idle (unsigned int nthreads) 917eio_set_max_idle (unsigned int nthreads)
752{ 918{
753 etp_set_max_idle (nthreads); 919 etp_set_max_idle (nthreads);
754} 920}
755 921
922void ecb_cold
923eio_set_idle_timeout (unsigned int seconds)
924{
925 etp_set_idle_timeout (seconds);
926}
927
928void ecb_cold
756void eio_set_min_parallel (unsigned int nthreads) 929eio_set_min_parallel (unsigned int nthreads)
757{ 930{
758 etp_set_min_parallel (nthreads); 931 etp_set_min_parallel (nthreads);
759} 932}
760 933
934void ecb_cold
761void eio_set_max_parallel (unsigned int nthreads) 935eio_set_max_parallel (unsigned int nthreads)
762{ 936{
763 etp_set_max_parallel (nthreads); 937 etp_set_max_parallel (nthreads);
764} 938}
765 939
766int eio_poll (void) 940int eio_poll (void)
… …
775# undef pread 949# undef pread
776# undef pwrite 950# undef pwrite
777# define pread eio__pread 951# define pread eio__pread
778# define pwrite eio__pwrite 952# define pwrite eio__pwrite
779 953
780static ssize_t 954static eio_ssize_t
781eio__pread (int fd, void *buf, size_t count, off_t offset) 955eio__pread (int fd, void *buf, size_t count, off_t offset)
782{ 956{
783 ssize_t res; 957 eio_ssize_t res;
784 off_t ooffset; 958 off_t ooffset;
785 959
786 X_LOCK (preadwritelock); 960 X_LOCK (preadwritelock);
787 ooffset = lseek (fd, 0, SEEK_CUR); 961 ooffset = lseek (fd, 0, SEEK_CUR);
788 lseek (fd, offset, SEEK_SET); 962 lseek (fd, offset, SEEK_SET);
… …
791 X_UNLOCK (preadwritelock); 965 X_UNLOCK (preadwritelock);
792 966
793 return res; 967 return res;
794} 968}
795 969
796static ssize_t 970static eio_ssize_t
797eio__pwrite (int fd, void *buf, size_t count, off_t offset) 971eio__pwrite (int fd, void *buf, size_t count, off_t offset)
798{ 972{
799 ssize_t res; 973 eio_ssize_t res;
800 off_t ooffset; 974 off_t ooffset;
801 975
802 X_LOCK (preadwritelock); 976 X_LOCK (preadwritelock);
803 ooffset = lseek (fd, 0, SEEK_CUR); 977 ooffset = lseek (fd, 0, SEEK_CUR);
804 lseek (fd, offset, SEEK_SET); 978 lseek (fd, offset, SEEK_SET);
… …
808 982
809 return res; 983 return res;
810} 984}
811#endif 985#endif
812 986
813#ifndef HAVE_FUTIMES 987#ifndef HAVE_UTIMES
814 988
815# undef utimes 989# undef utimes
816# undef futimes
817# define utimes(path,times) eio__utimes (path, times) 990# define utimes(path,times) eio__utimes (path, times)
818# define futimes(fd,times) eio__futimes (fd, times)
819 991
820static int 992static int
821eio__utimes (const char *filename, const struct timeval times[2]) 993eio__utimes (const char *filename, const struct timeval times[2])
822{ 994{
823 if (times) 995 if (times)
… …
831 } 1003 }
832 else 1004 else
833 return utime (filename, 0); 1005 return utime (filename, 0);
834} 1006}
835 1007
1008#endif
1009
1010#ifndef HAVE_FUTIMES
1011
1012# undef futimes
1013# define futimes(fd,times) eio__futimes (fd, times)
1014
1015static int
836static int eio__futimes (int fd, const struct timeval tv[2]) 1016eio__futimes (int fd, const struct timeval tv[2])
837{ 1017{
838 errno = ENOSYS; 1018 errno = ENOSYS;
839 return -1; 1019 return -1;
840} 1020}
841 1021
… …
844#if !HAVE_FDATASYNC 1024#if !HAVE_FDATASYNC
845# undef fdatasync 1025# undef fdatasync
846# define fdatasync(fd) fsync (fd) 1026# define fdatasync(fd) fsync (fd)
847#endif 1027#endif
848 1028
1029static int
1030eio__syncfs (int fd)
1031{
1032 int res;
1033
1034#if HAVE_SYS_SYNCFS
1035 res = (int)syscall (__NR_syncfs, (int)(fd));
1036#else
1037 res = -1;
1038 errno = ENOSYS;
1039#endif
1040
1041 if (res < 0 && errno == ENOSYS && fd >= 0)
1042 sync ();
1043
1044 return res;
1045}
1046
849/* sync_file_range always needs emulation */ 1047/* sync_file_range always needs emulation */
850int 1048static int
851eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) 1049eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)
852{ 1050{
853#if HAVE_SYNC_FILE_RANGE 1051#if HAVE_SYNC_FILE_RANGE
854 int res; 1052 int res;
855 1053
… …
872 /* even though we could play tricks with the flags, it's better to always 1070 /* even though we could play tricks with the flags, it's better to always
873 * call fdatasync, as that matches the expectation of its users best */ 1071 * call fdatasync, as that matches the expectation of its users best */
874 return fdatasync (fd); 1072 return fdatasync (fd);
875} 1073}
876 1074
1075static int
1076eio__fallocate (int fd, int mode, off_t offset, size_t len)
1077{
1078#if HAVE_FALLOCATE
1079 return fallocate (fd, mode, offset, len);
1080#else
1081 errno = ENOSYS;
1082 return -1;
1083#endif
1084}
1085
877#if !HAVE_READAHEAD 1086#if !HAVE_READAHEAD
878# undef readahead 1087# undef readahead
879# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) 1088# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
880 1089
881static ssize_t 1090static eio_ssize_t
882eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) 1091eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)
883{ 1092{
884 size_t todo = count; 1093 size_t todo = count;
885 dBUF; 1094 dBUF;
886 1095
… …
891 pread (fd, eio_buf, len, offset); 1100 pread (fd, eio_buf, len, offset);
892 offset += len; 1101 offset += len;
893 todo -= len; 1102 todo -= len;
894 } 1103 }
895 1104
896 errno = 0; 1105 FUBd;
1106
1107 /* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */
1108 /* but not for e.g. EIO or eof, so we also never fail */
897 return count; 1109 return 0;
898} 1110}
899 1111
900#endif 1112#endif
901 1113
902/* sendfile always needs emulation */ 1114/* sendfile always needs emulation */
903static ssize_t 1115static eio_ssize_t
904eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) 1116eio__sendfile (int ofd, int ifd, off_t offset, size_t count)
905{ 1117{
1118 eio_ssize_t written = 0;
906 ssize_t res; 1119 eio_ssize_t res;
907 1120
908 if (!count) 1121 if (!count)
909 return 0; 1122 return 0;
910 1123
1124 for (;;)
1125 {
1126#ifdef __APPLE__
1127# undef HAVE_SENDFILE /* broken, as everything on os x */
1128#endif
911#if HAVE_SENDFILE 1129#if HAVE_SENDFILE
912# if __linux 1130# if __linux
1131 off_t soffset = offset;
913 res = sendfile (ofd, ifd, &offset, count); 1132 res = sendfile (ofd, ifd, &soffset, count);
914 1133
915# elif __FreeBSD__ 1134# elif __FreeBSD__
916 /* 1135 /*
917 * Of course, the freebsd sendfile is a dire hack with no thoughts 1136 * Of course, the freebsd sendfile is a dire hack with no thoughts
918 * wasted on making it similar to other I/O functions. 1137 * wasted on making it similar to other I/O functions.
919 */ 1138 */
920 {
921 off_t sbytes; 1139 off_t sbytes;
922 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1140 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
923 1141
924 #if 0 /* according to the manpage, this is correct, but broken behaviour */ 1142 #if 0 /* according to the manpage, this is correct, but broken behaviour */
925 /* freebsd' sendfile will return 0 on success */ 1143 /* freebsd' sendfile will return 0 on success */
926 /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ 1144 /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */
927 /* not on e.g. EIO or EPIPE - sounds broken */ 1145 /* not on e.g. EIO or EPIPE - sounds broken */
928 if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) 1146 if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0)
929 res = sbytes; 1147 res = sbytes;
930 #endif 1148 #endif
931 1149
932 /* according to source inspection, this is correct, and useful behaviour */ 1150 /* according to source inspection, this is correct, and useful behaviour */
933 if (sbytes) 1151 if (sbytes)
934 res = sbytes; 1152 res = sbytes;
935 }
936 1153
937# elif defined (__APPLE__) 1154# elif defined __APPLE__
938
939 {
940 off_t sbytes = count; 1155 off_t sbytes = count;
941 res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); 1156 res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);
942 1157
943 /* according to the manpage, sbytes is always valid */ 1158 /* according to the manpage, sbytes is always valid */
944 if (sbytes) 1159 if (sbytes)
945 res = sbytes; 1160 res = sbytes;
946 }
947 1161
948# elif __hpux 1162# elif __hpux
949 res = sendfile (ofd, ifd, offset, count, 0, 0); 1163 res = sendfile (ofd, ifd, offset, count, 0, 0);
950 1164
951# elif __solaris 1165# elif __solaris
952 {
953 struct sendfilevec vec; 1166 struct sendfilevec vec;
954 size_t sbytes; 1167 size_t sbytes;
955 1168
956 vec.sfv_fd = ifd; 1169 vec.sfv_fd = ifd;
957 vec.sfv_flag = 0; 1170 vec.sfv_flag = 0;
958 vec.sfv_off = offset; 1171 vec.sfv_off = offset;
959 vec.sfv_len = count; 1172 vec.sfv_len = count;
960 1173
961 res = sendfilev (ofd, &vec, 1, &sbytes); 1174 res = sendfilev (ofd, &vec, 1, &sbytes);
962 1175
963 if (res < 0 && sbytes) 1176 if (res < 0 && sbytes)
964 res = sbytes; 1177 res = sbytes;
965 }
966 1178
967# endif 1179# endif
968 1180
969#elif defined (_WIN32) 1181#elif defined (_WIN32) && 0
970
971 /* does not work, just for documentation of what would need to be done */ 1182 /* does not work, just for documentation of what would need to be done */
972 { 1183 /* actually, cannot be done like this, as TransmitFile changes the file offset, */
1184 /* libeio guarantees that the file offset does not change, and windows */
1185 /* has no way to get an independent handle to the same file description */
973 HANDLE h = TO_SOCKET (ifd); 1186 HANDLE h = TO_SOCKET (ifd);
974 SetFilePointer (h, offset, 0, FILE_BEGIN); 1187 SetFilePointer (h, offset, 0, FILE_BEGIN);
975 res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); 1188 res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);
976 }
977 1189
978#else 1190#else
979 res = -1; 1191 res = -1;
980 errno = ENOSYS; 1192 errno = ENOSYS;
981#endif 1193#endif
982 1194
1195 /* we assume sendfile can copy at least 128mb in one go */
1196 if (res <= 128 * 1024 * 1024)
1197 {
1198 if (res > 0)
1199 written += res;
1200
1201 if (written)
1202 return written;
1203
1204 break;
1205 }
1206 else
1207 {
1208 /* if we requested more, then probably the kernel was lazy */
1209 written += res;
1210 offset += res;
1211 count -= res;
1212
1213 if (!count)
1214 return written;
1215 }
1216 }
1217
983 if (res < 0 1218 if (res < 0
984 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 1219 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
985 /* BSDs */ 1220 /* BSDs */
986#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ 1221#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */
987 || errno == ENOTSUP 1222 || errno == ENOTSUP
988#endif 1223#endif
1224#ifdef EOPNOTSUPP /* windows */
989 || errno == EOPNOTSUPP /* BSDs */ 1225 || errno == EOPNOTSUPP /* BSDs */
1226#endif
990#if __solaris 1227#if __solaris
991 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 1228 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
992#endif 1229#endif
993 ) 1230 )
994 ) 1231 )
… …
998 1235
999 res = 0; 1236 res = 0;
1000 1237
1001 while (count) 1238 while (count)
1002 { 1239 {
1003 ssize_t cnt; 1240 eio_ssize_t cnt;
1004 1241
1005 cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); 1242 cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);
1006 1243
1007 if (cnt <= 0) 1244 if (cnt <= 0)
1008 { 1245 {
… …
1020 1257
1021 offset += cnt; 1258 offset += cnt;
1022 res += cnt; 1259 res += cnt;
1023 count -= cnt; 1260 count -= cnt;
1024 } 1261 }
1262
1263 FUBd;
1025 } 1264 }
1026 1265
1027 return res; 1266 return res;
1267}
1268
1269#ifdef PAGESIZE
1270# define eio_pagesize() PAGESIZE
1271#else
1272static intptr_t
1273eio_pagesize (void)
1274{
1275 static intptr_t page;
1276
1277 if (!page)
1278 page = sysconf (_SC_PAGESIZE);
1279
1280 return page;
1281}
1282#endif
1283
1284static void
1285eio_page_align (void **addr, size_t *length)
1286{
1287 intptr_t mask = eio_pagesize () - 1;
1288
1289 /* round down addr */
1290 intptr_t adj = mask & (intptr_t)*addr;
1291
1292 *addr = (void *)((intptr_t)*addr - adj);
1293 *length += adj;
1294
1295 /* round up length */
1296 *length = (*length + mask) & ~mask;
1297}
1298
1299#if !_POSIX_MEMLOCK
1300# define eio__mlockall(a) EIO_ENOSYS ()
1301#else
1302
1303static int
1304eio__mlockall (int flags)
1305{
1306 #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1307 extern int mallopt (int, int);
1308 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1309 #endif
1310
1311 if (EIO_MCL_CURRENT != MCL_CURRENT
1312 || EIO_MCL_FUTURE != MCL_FUTURE)
1313 {
1314 flags = 0
1315 | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0)
1316 | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0);
1317 }
1318
1319 return mlockall (flags);
1320}
1321#endif
1322
1323#if !_POSIX_MEMLOCK_RANGE
1324# define eio__mlock(a,b) EIO_ENOSYS ()
1325#else
1326
1327static int
1328eio__mlock (void *addr, size_t length)
1329{
1330 eio_page_align (&addr, &length);
1331
1332 return mlock (addr, length);
1333}
1334
1335#endif
1336
1337#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO)
1338# define eio__msync(a,b,c) EIO_ENOSYS ()
1339#else
1340
1341static int
1342eio__msync (void *mem, size_t len, int flags)
1343{
1344 eio_page_align (&mem, &len);
1345
1346 if (EIO_MS_ASYNC != MS_SYNC
1347 || EIO_MS_INVALIDATE != MS_INVALIDATE
1348 || EIO_MS_SYNC != MS_SYNC)
1349 {
1350 flags = 0
1351 | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0)
1352 | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0)
1353 | (flags & EIO_MS_SYNC ? MS_SYNC : 0);
1354 }
1355
1356 return msync (mem, len, flags);
1357}
1358
1359#endif
1360
1361static int
1362eio__mtouch (eio_req *req)
1363{
1364 void *mem = req->ptr2;
1365 size_t len = req->size;
1366 int flags = req->int1;
1367
1368 eio_page_align (&mem, &len);
1369
1370 {
1371 intptr_t addr = (intptr_t)mem;
1372 intptr_t end = addr + len;
1373 intptr_t page = eio_pagesize ();
1374
1375 if (addr < end)
1376 if (flags & EIO_MT_MODIFY) /* modify */
1377 do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req));
1378 else
1379 do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req));
1380 }
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386/* requests implemented outside eio_execute, because they are so large */
1387
1388static void
1389eio__lseek (eio_req *req)
1390{
1391 /* this usually gets optimised away completely, or your compiler sucks, */
1392 /* or the whence constants really are not 0, 1, 2 */
1393 int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET
1394 : req->int2 == EIO_SEEK_CUR ? SEEK_CUR
1395 : req->int2 == EIO_SEEK_END ? SEEK_END
1396 : req->int2;
1397
1398 req->offs = lseek (req->int1, req->offs, whence);
1399 req->result = req->offs == (off_t)-1 ? -1 : 0;
1400}
1401
1402/* result will always end up in tmpbuf, there is always space for adding a 0-byte */
1403static int
1404eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
1405{
1406 const char *rel = path;
1407 char *res;
1408 char *tmp1, *tmp2;
1409#if SYMLOOP_MAX > 32
1410 int symlinks = SYMLOOP_MAX;
1411#else
1412 int symlinks = 32;
1413#endif
1414
1415 errno = EINVAL;
1416 if (!rel)
1417 return -1;
1418
1419 errno = ENOENT;
1420 if (!*rel)
1421 return -1;
1422
1423 res = tmpbuf_get (tmpbuf, PATH_MAX * 3);
1424 tmp1 = res + PATH_MAX;
1425 tmp2 = tmp1 + PATH_MAX;
1426
1427#if 0 /* disabled, the musl way to do things is just too racy */
1428#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME)
1429 /* on linux we may be able to ask the kernel */
1430 {
1431 int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME);
1432
1433 if (fd >= 0)
1434 {
1435 sprintf (tmp1, "/proc/self/fd/%d", fd);
1436 req->result = readlink (tmp1, res, PATH_MAX);
1437 close (fd);
1438
1439 /* here we should probably stat the open file and the disk file, to make sure they still match */
1440
1441 if (req->result > 0)
1442 goto done;
1443 }
1444 else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO)
1445 return;
1446 }
1447#endif
1448#endif
1449
1450 if (*rel != '/')
1451 {
1452 int len;
1453
1454 errno = ENOENT;
1455 if (wd == EIO_INVALID_WD)
1456 return -1;
1457
1458 if (wd == EIO_CWD)
1459 {
1460 if (!getcwd (res, PATH_MAX))
1461 return -1;
1462
1463 len = strlen (res);
1464 }
1465 else
1466 memcpy (res, wd->str, len = wd->len);
1467
1468 if (res [1]) /* only use if not / */
1469 res += len;
1470 }
1471
1472 while (*rel)
1473 {
1474 eio_ssize_t len, linklen;
1475 const char *beg = rel;
1476
1477 while (*rel && *rel != '/')
1478 ++rel;
1479
1480 len = rel - beg;
1481
1482 if (!len) /* skip slashes */
1483 {
1484 ++rel;
1485 continue;
1486 }
1487
1488 if (beg [0] == '.')
1489 {
1490 if (len == 1)
1491 continue; /* . - nop */
1492
1493 if (beg [1] == '.' && len == 2)
1494 {
1495 /* .. - back up one component, if possible */
1496
1497 while (res != tmpbuf->ptr)
1498 if (*--res == '/')
1499 break;
1500
1501 continue;
1502 }
1503 }
1504
1505 errno = ENAMETOOLONG;
1506 if (res + 1 + len + 1 >= tmp1)
1507 return -1;
1508
1509 /* copy one component */
1510 *res = '/';
1511 memcpy (res + 1, beg, len);
1512
1513 /* zero-terminate, for readlink */
1514 res [len + 1] = 0;
1515
1516 /* now check if it's a symlink */
1517 linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX);
1518
1519 if (linklen < 0)
1520 {
1521 if (errno != EINVAL)
1522 return -1;
1523
1524 /* it's a normal directory. hopefully */
1525 res += len + 1;
1526 }
1527 else
1528 {
1529 /* yay, it was a symlink - build new path in tmp2 */
1530 int rellen = strlen (rel);
1531
1532 errno = ENAMETOOLONG;
1533 if (linklen + 1 + rellen >= PATH_MAX)
1534 return -1;
1535
1536 errno = ELOOP;
1537 if (!--symlinks)
1538 return -1;
1539
1540 if (*tmp1 == '/')
1541 res = tmpbuf->ptr; /* symlink resolves to an absolute path */
1542
1543 /* we need to be careful, as rel might point into tmp2 already */
1544 memmove (tmp2 + linklen + 1, rel, rellen + 1);
1545 tmp2 [linklen] = '/';
1546 memcpy (tmp2, tmp1, linklen);
1547
1548 rel = tmp2;
1549 }
1550 }
1551
1552 /* special case for the lone root path */
1553 if (res == tmpbuf->ptr)
1554 *res++ = '/';
1555
1556 return res - (char *)tmpbuf->ptr;
1028} 1557}
1029 1558
1030static signed char 1559static signed char
1031eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) 1560eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)
1032{ 1561{
1033 return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */ 1562 return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */
1034 : a->inode < b->inode ? -1 : a->inode > b->inode ? 1 : 0; 1563 : a->inode < b->inode ? -1
1564 : a->inode > b->inode ? 1
1565 : 0;
1035} 1566}
1036 1567
1037#define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0 1568#define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0
1038 1569
1039#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ 1570#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */
1040#define EIO_SORT_FAST 60 /* when to only use insertion sort */ 1571#define EIO_SORT_FAST 60 /* when to only use insertion sort */
1041 1572
1042static void 1573static void
1043eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) 1574eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1044{ 1575{
1045 unsigned char bits [9 + sizeof (ino_t) * 8]; 1576 unsigned char bits [9 + sizeof (eio_ino_t) * 8];
1046 unsigned char *bit = bits; 1577 unsigned char *bit = bits;
1047 1578
1048 assert (CHAR_BIT == 8); 1579 assert (CHAR_BIT == 8);
1049 assert (sizeof (eio_dirent) * 8 < 256); 1580 assert (sizeof (eio_dirent) * 8 < 256);
1050 assert (offsetof (eio_dirent, inode)); /* we use 0 as sentinel */ 1581 assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */
1051 assert (offsetof (eio_dirent, score)); /* we use 0 as sentinel */ 1582 assert (offsetof (eio_dirent, score)); /* we use bit #0 as sentinel */
1052 1583
1053 if (size <= EIO_SORT_FAST) 1584 if (size <= EIO_SORT_FAST)
1054 return; 1585 return;
1055 1586
1056 /* first prepare an array of bits to test in our radix sort */ 1587 /* first prepare an array of bits to test in our radix sort */
1057 /* try to take endianness into account, as well as differences in ino_t sizes */ 1588 /* try to take endianness into account, as well as differences in eio_ino_t sizes */
1058 /* inode_bits must contain all inodes ORed together */ 1589 /* inode_bits must contain all inodes ORed together */
1059 /* which is used to skip bits that are 0 everywhere, which is very common */ 1590 /* which is used to skip bits that are 0 everywhere, which is very common */
1060 { 1591 {
1061 ino_t endianness; 1592 eio_ino_t endianness;
1062 int i, j; 1593 int i, j;
1063 1594
1064 /* we store the byte offset of byte n into byte n of "endianness" */ 1595 /* we store the byte offset of byte n into byte n of "endianness" */
1065 for (i = 0; i < sizeof (ino_t); ++i) 1596 for (i = 0; i < sizeof (eio_ino_t); ++i)
1066 ((unsigned char *)&endianness)[i] = i; 1597 ((unsigned char *)&endianness)[i] = i;
1067 1598
1068 *bit++ = 0; 1599 *bit++ = 0;
1069 1600
1070 for (i = 0; i < sizeof (ino_t); ++i) 1601 for (i = 0; i < sizeof (eio_ino_t); ++i)
1071 { 1602 {
1072 /* shifting off the byte offsets out of "endianness" */ 1603 /* shifting off the byte offsets out of "endianness" */
1073 int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; 1604 int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;
1074 endianness >>= 8; 1605 endianness >>= 8;
1075 1606
1076 for (j = 0; j < 8; ++j) 1607 for (j = 0; j < 8; ++j)
1077 if (inode_bits & (((ino_t)1) << (i * 8 + j))) 1608 if (inode_bits & (((eio_ino_t)1) << (i * 8 + j)))
1078 *bit++ = offs + j; 1609 *bit++ = offs + j;
1079 } 1610 }
1080 1611
1081 for (j = 0; j < 8; ++j) 1612 for (j = 0; j < 8; ++j)
1082 if (score_bits & (1 << j)) 1613 if (score_bits & (1 << j))
1083 *bit++ = offsetof (eio_dirent, score) * 8 + j; 1614 *bit++ = offsetof (eio_dirent, score) * 8 + j;
1084 } 1615 }
1085 1616
1086 /* now actually do the sorting (a variant of MSD radix sort) */ 1617 /* now actually do the sorting (a variant of MSD radix sort) */
1087 { 1618 {
1088 eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; 1619 eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base;
1089 eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; 1620 eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end;
1090 unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; 1621 unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8];
1091 int stk_idx = 0; 1622 int stk_idx = 0;
1092 1623
1093 base_stk [stk_idx] = dents; 1624 base_stk [stk_idx] = dents;
1094 end_stk [stk_idx] = dents + size; 1625 end_stk [stk_idx] = dents + size;
1095 bit_stk [stk_idx] = bit - 1; 1626 bit_stk [stk_idx] = bit - 1;
… …
1174 } 1705 }
1175 } 1706 }
1176} 1707}
1177 1708
1178static void 1709static void
1179eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) 1710eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits)
1180{ 1711{
1181 if (size <= 1) 1712 if (size <= 1)
1182 return; /* our insertion sort relies on size > 0 */ 1713 return; /* our insertion sort relies on size > 0 */
1183 1714
1184 /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ 1715 /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */
… …
1192 1723
1193/* read a full directory */ 1724/* read a full directory */
1194static void 1725static void
1195eio__scandir (eio_req *req, etp_worker *self) 1726eio__scandir (eio_req *req, etp_worker *self)
1196{ 1727{
1197 DIR *dirp;
1198 EIO_STRUCT_DIRENT *entp;
1199 char *name, *names; 1728 char *name, *names;
1200 int namesalloc = 4096; 1729 int namesalloc = 4096 - sizeof (void *) * 4;
1201 int namesoffs = 0; 1730 int namesoffs = 0;
1202 int flags = req->int1; 1731 int flags = req->int1;
1203 eio_dirent *dents = 0; 1732 eio_dirent *dents = 0;
1204 int dentalloc = 128; 1733 int dentalloc = 128;
1205 int dentoffs = 0; 1734 int dentoffs = 0;
1206 ino_t inode_bits = 0; 1735 eio_ino_t inode_bits = 0;
1736#ifdef _WIN32
1737 HANDLE dirp;
1738 WIN32_FIND_DATA entp;
1739#else
1740 DIR *dirp;
1741 EIO_STRUCT_DIRENT *entp;
1742#endif
1207 1743
1208 req->result = -1; 1744 req->result = -1;
1209 1745
1210 if (!(flags & EIO_READDIR_DENTS)) 1746 if (!(flags & EIO_READDIR_DENTS))
1211 flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); 1747 flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);
1212 1748
1213 X_LOCK (wrklock); 1749#ifdef _WIN32
1214 /* the corresponding closedir is in ETP_WORKER_CLEAR */ 1750 {
1751 int len = strlen ((const char *)req->ptr1);
1752 char *path = malloc (MAX_PATH);
1753 const char *fmt;
1754 const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
1755
1756 if (!len)
1757 fmt = "./*";
1758 else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\')
1759 fmt = "%s*";
1760 else
1761 fmt = "%s/*";
1762
1763 _snprintf (path, MAX_PATH, fmt, reqpath);
1764 dirp = FindFirstFile (path, &entp);
1765 free (path);
1766
1767 if (dirp == INVALID_HANDLE_VALUE)
1768 {
1769 /* should steal _dosmaperr */
1770 switch (GetLastError ())
1771 {
1772 case ERROR_FILE_NOT_FOUND:
1773 req->result = 0;
1774 break;
1775
1776 case ERROR_INVALID_NAME:
1777 case ERROR_PATH_NOT_FOUND:
1778 case ERROR_NO_MORE_FILES:
1779 errno = ENOENT;
1780 break;
1781
1782 case ERROR_NOT_ENOUGH_MEMORY:
1783 errno = ENOMEM;
1784 break;
1785
1786 default:
1787 errno = EINVAL;
1788 break;
1789 }
1790
1791 return;
1792 }
1793 }
1794#else
1795 #if HAVE_AT
1796 if (req->wd)
1797 {
1798 int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY);
1799
1800 if (fd < 0)
1801 return;
1802
1803 dirp = fdopendir (fd);
1804
1805 if (!dirp)
1806 close (fd);
1807 }
1808 else
1215 self->dirp = dirp = opendir (req->ptr1); 1809 dirp = opendir (req->ptr1);
1810 #else
1811 dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1));
1812 #endif
1813
1814 if (!dirp)
1815 return;
1816#endif
1817
1818 if (req->flags & EIO_FLAG_PTR1_FREE)
1819 free (req->ptr1);
1820
1216 req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; 1821 req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;
1217 req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; 1822 req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
1218 req->ptr2 = names = malloc (namesalloc); 1823 req->ptr2 = names = malloc (namesalloc);
1219 X_UNLOCK (wrklock);
1220 1824
1221 if (dirp && names && (!flags || dents)) 1825 if (!names || (flags && !dents))
1826 return;
1827
1222 for (;;) 1828 for (;;)
1223 { 1829 {
1830 int done;
1831
1832#ifdef _WIN32
1833 done = !dirp;
1834#else
1224 errno = 0; 1835 errno = 0;
1225 entp = readdir (dirp); 1836 entp = readdir (dirp);
1837 done = !entp;
1838#endif
1226 1839
1227 if (!entp) 1840 if (done)
1228 { 1841 {
1842#ifndef _WIN32
1843 int old_errno = errno;
1844 closedir (dirp);
1845 errno = old_errno;
1846
1229 if (errno) 1847 if (errno)
1230 break; 1848 break;
1849#endif
1231 1850
1232 /* sort etc. */ 1851 /* sort etc. */
1233 req->int1 = flags; 1852 req->int1 = flags;
1234 req->result = dentoffs; 1853 req->result = dentoffs;
1235 1854
1236 if (flags & EIO_READDIR_STAT_ORDER) 1855 if (flags & EIO_READDIR_STAT_ORDER)
1237 eio_dent_sort (dents, dentoffs, 0, inode_bits); /* sort by inode exclusively */ 1856 eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits);
1238 else if (flags & EIO_READDIR_DIRS_FIRST) 1857 else if (flags & EIO_READDIR_DIRS_FIRST)
1239 if (flags & EIO_READDIR_FOUND_UNKNOWN) 1858 if (flags & EIO_READDIR_FOUND_UNKNOWN)
1240 eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ 1859 eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */
1241 else 1860 else
1861 {
1862 /* in this case, all is known, and we just put dirs first and sort them */
1863 eio_dirent *oth = dents + dentoffs;
1864 eio_dirent *dir = dents;
1865
1866 /* now partition dirs to the front, and non-dirs to the back */
1867 /* by walking from both sides and swapping if necessary */
1868 while (oth > dir)
1869 {
1870 if (dir->type == EIO_DT_DIR)
1871 ++dir;
1872 else if ((--oth)->type == EIO_DT_DIR)
1873 {
1874 eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
1875
1876 ++dir;
1877 }
1878 }
1879
1880 /* now sort the dirs only (dirs all have the same score) */
1881 eio_dent_sort (dents, dir - dents, 0, inode_bits);
1882 }
1883
1884 break;
1885 }
1886
1887 /* now add the entry to our list(s) */
1888 name = D_NAME (entp);
1889
1890 /* skip . and .. entries */
1891 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1892 {
1893 int len = D_NAMLEN (entp) + 1;
1894
1895 while (ecb_expect_false (namesoffs + len > namesalloc))
1896 {
1897 namesalloc *= 2;
1898 req->ptr2 = names = realloc (names, namesalloc);
1899
1900 if (!names)
1901 break;
1902 }
1903
1904 memcpy (names + namesoffs, name, len);
1905
1906 if (dents)
1907 {
1908 struct eio_dirent *ent;
1909
1910 if (ecb_expect_false (dentoffs == dentalloc))
1242 { 1911 {
1243 /* in this case, all is known, and we just put dirs first and sort them */ 1912 dentalloc *= 2;
1913 req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
1914
1915 if (!dents)
1916 break;
1917 }
1918
1244 eio_dirent *oth = dents + dentoffs; 1919 ent = dents + dentoffs;
1245 eio_dirent *dir = dents;
1246 1920
1247 /* now partition dirs to the front, and non-dirs to the back */ 1921 ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1248 /* by walking from both sides and swapping if necessary */ 1922 ent->namelen = len - 1;
1249 /* also clear score, so it doesn't influence sorting */ 1923 ent->inode = D_INO (entp);
1250 while (oth > dir) 1924
1925 inode_bits |= ent->inode;
1926
1927 switch (D_TYPE (entp))
1928 {
1929 default:
1930 ent->type = EIO_DT_UNKNOWN;
1931 flags |= EIO_READDIR_FOUND_UNKNOWN;
1932 break;
1933
1934 #ifdef DT_FIFO
1935 case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1936 #endif
1937 #ifdef DT_CHR
1938 case DT_CHR: ent->type = EIO_DT_CHR; break;
1939 #endif
1940 #ifdef DT_MPC
1941 case DT_MPC: ent->type = EIO_DT_MPC; break;
1942 #endif
1943 #ifdef DT_DIR
1944 case DT_DIR: ent->type = EIO_DT_DIR; break;
1945 #endif
1946 #ifdef DT_NAM
1947 case DT_NAM: ent->type = EIO_DT_NAM; break;
1948 #endif
1949 #ifdef DT_BLK
1950 case DT_BLK: ent->type = EIO_DT_BLK; break;
1951 #endif
1952 #ifdef DT_MPB
1953 case DT_MPB: ent->type = EIO_DT_MPB; break;
1954 #endif
1955 #ifdef DT_REG
1956 case DT_REG: ent->type = EIO_DT_REG; break;
1957 #endif
1958 #ifdef DT_NWK
1959 case DT_NWK: ent->type = EIO_DT_NWK; break;
1960 #endif
1961 #ifdef DT_CMP
1962 case DT_CMP: ent->type = EIO_DT_CMP; break;
1963 #endif
1964 #ifdef DT_LNK
1965 case DT_LNK: ent->type = EIO_DT_LNK; break;
1966 #endif
1967 #ifdef DT_SOCK
1968 case DT_SOCK: ent->type = EIO_DT_SOCK; break;
1969 #endif
1970 #ifdef DT_DOOR
1971 case DT_DOOR: ent->type = EIO_DT_DOOR; break;
1972 #endif
1973 #ifdef DT_WHT
1974 case DT_WHT: ent->type = EIO_DT_WHT; break;
1975 #endif
1976 }
1977
1978 ent->score = 7;
1979
1980 if (flags & EIO_READDIR_DIRS_FIRST)
1981 {
1982 if (ent->type == EIO_DT_UNKNOWN)
1251 { 1983 {
1252 if (dir->type == EIO_DT_DIR) 1984 if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1253 ++dir; 1985 ent->score = 1;
1254 else if ((--oth)->type == EIO_DT_DIR) 1986 else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */
1255 { 1987 ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1256 eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
1257
1258 ++dir;
1259 }
1260 } 1988 }
1261 1989 else if (ent->type == EIO_DT_DIR)
1262 /* now sort the dirs only */ 1990 ent->score = 0;
1263 eio_dent_sort (dents, dir - dents, 0, inode_bits);
1264 } 1991 }
1265
1266 break;
1267 }
1268
1269 /* now add the entry to our list(s) */
1270 name = entp->d_name;
1271
1272 /* skip . and .. entries */
1273 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1274 {
1275 int len = D_NAMLEN (entp) + 1;
1276
1277 while (expect_false (namesoffs + len > namesalloc))
1278 {
1279 namesalloc *= 2;
1280 X_LOCK (wrklock);
1281 req->ptr2 = names = realloc (names, namesalloc);
1282 X_UNLOCK (wrklock);
1283
1284 if (!names)
1285 break;
1286 } 1992 }
1287 1993
1288 memcpy (names + namesoffs, name, len);
1289
1290 if (dents)
1291 {
1292 struct eio_dirent *ent;
1293
1294 if (expect_false (dentoffs == dentalloc))
1295 {
1296 dentalloc *= 2;
1297 X_LOCK (wrklock);
1298 req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
1299 X_UNLOCK (wrklock);
1300
1301 if (!dents)
1302 break;
1303 }
1304
1305 ent = dents + dentoffs;
1306
1307 ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
1308 ent->namelen = len - 1;
1309 ent->inode = D_INO (entp);
1310
1311 inode_bits |= ent->inode;
1312
1313 switch (D_TYPE (entp))
1314 {
1315 default:
1316 ent->type = EIO_DT_UNKNOWN;
1317 flags |= EIO_READDIR_FOUND_UNKNOWN;
1318 break;
1319
1320 #ifdef DT_FIFO
1321 case DT_FIFO: ent->type = EIO_DT_FIFO; break;
1322 #endif
1323 #ifdef DT_CHR
1324 case DT_CHR: ent->type = EIO_DT_CHR; break;
1325 #endif
1326 #ifdef DT_MPC
1327 case DT_MPC: ent->type = EIO_DT_MPC; break;
1328 #endif
1329 #ifdef DT_DIR
1330 case DT_DIR: ent->type = EIO_DT_DIR; break;
1331 #endif
1332 #ifdef DT_NAM
1333 case DT_NAM: ent->type = EIO_DT_NAM; break;
1334 #endif
1335 #ifdef DT_BLK
1336 case DT_BLK: ent->type = EIO_DT_BLK; break;
1337 #endif
1338 #ifdef DT_MPB
1339 case DT_MPB: ent->type = EIO_DT_MPB; break;
1340 #endif
1341 #ifdef DT_REG
1342 case DT_REG: ent->type = EIO_DT_REG; break;
1343 #endif
1344 #ifdef DT_NWK
1345 case DT_NWK: ent->type = EIO_DT_NWK; break;
1346 #endif
1347 #ifdef DT_CMP
1348 case DT_CMP: ent->type = EIO_DT_CMP; break;
1349 #endif
1350 #ifdef DT_LNK
1351 case DT_LNK: ent->type = EIO_DT_LNK; break;
1352 #endif
1353 #ifdef DT_SOCK
1354 case DT_SOCK: ent->type = EIO_DT_SOCK; break;
1355 #endif
1356 #ifdef DT_DOOR
1357 case DT_DOOR: ent->type = EIO_DT_DOOR; break;
1358 #endif
1359 #ifdef DT_WHT
1360 case DT_WHT: ent->type = EIO_DT_WHT; break;
1361 #endif
1362 }
1363
1364 ent->score = 7;
1365
1366 if (flags & EIO_READDIR_DIRS_FIRST)
1367 {
1368 if (ent->type == EIO_DT_UNKNOWN)
1369 {
1370 if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
1371 ent->score = 1;
1372 else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */
1373 ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
1374 }
1375 else if (ent->type == EIO_DT_DIR)
1376 ent->score = 0;
1377 }
1378 }
1379
1380 namesoffs += len; 1994 namesoffs += len;
1381 ++dentoffs; 1995 ++dentoffs;
1382 } 1996 }
1383 1997
1384 if (EIO_CANCELLED (req)) 1998 if (EIO_CANCELLED (req))
1385 { 1999 {
1386 errno = ECANCELED; 2000 errno = ECANCELED;
1387 break; 2001 break;
1388 } 2002 }
2003
2004#ifdef _WIN32
2005 if (!FindNextFile (dirp, &entp))
2006 {
2007 FindClose (dirp);
2008 dirp = 0;
1389 } 2009 }
2010#endif
2011 }
1390} 2012}
1391 2013
1392#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) 2014/*****************************************************************************/
1393# define eio__msync(a,b,c) ((errno = ENOSYS), -1) 2015/* working directory stuff */
1394#else 2016/* various deficiencies in the posix 2008 api force us to */
2017/* keep the absolute path in string form at all times */
2018/* fuck yeah. */
1395 2019
1396int 2020#if !HAVE_AT
1397eio__msync (void *mem, size_t len, int flags) 2021
2022/* a bit like realpath, but usually faster because it doesn'T have to return */
2023/* an absolute or canonical path */
2024static const char *
2025wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
1398{ 2026{
1399 if (EIO_MS_ASYNC != MS_SYNC 2027 if (!wd || *path == '/')
1400 || EIO_MS_INVALIDATE != MS_INVALIDATE 2028 return path;
1401 || EIO_MS_SYNC != MS_SYNC) 2029
2030 if (path [0] == '.' && !path [1])
2031 return wd->str;
2032
2033 {
2034 int l1 = wd->len;
2035 int l2 = strlen (path);
2036
2037 char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2);
2038
2039 memcpy (res, wd->str, l1);
2040 res [l1] = '/';
2041 memcpy (res + l1 + 1, path, l2 + 1);
2042
2043 return res;
2044 }
2045}
2046
2047#endif
2048
2049static eio_wd
2050eio__wd_open_sync (struct tmpbuf *tmpbuf, eio_wd wd, const char *path)
2051{
2052 int fd;
2053 eio_wd res;
2054 int len = eio__realpath (tmpbuf, wd, path);
2055
2056 if (len < 0)
2057 return EIO_INVALID_WD;
2058
2059#if HAVE_AT
2060 fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY);
2061
2062 if (fd < 0)
2063 return EIO_INVALID_WD;
2064#endif
2065
2066 res = malloc (sizeof (*res) + len); /* one extra 0-byte */
2067
2068#if HAVE_AT
2069 res->fd = fd;
2070#endif
2071
2072 res->len = len;
2073 memcpy (res->str, tmpbuf->ptr, len);
2074 res->str [len] = 0;
2075
2076 return res;
2077}
2078
2079eio_wd
2080eio_wd_open_sync (eio_wd wd, const char *path)
2081{
2082 struct tmpbuf tmpbuf = { 0 };
2083 wd = eio__wd_open_sync (&tmpbuf, wd, path);
2084 free (tmpbuf.ptr);
2085
2086 return wd;
2087}
2088
2089void
2090eio_wd_close_sync (eio_wd wd)
2091{
2092 if (wd != EIO_INVALID_WD && wd != EIO_CWD)
1402 { 2093 {
1403 flags = 0 2094 #if HAVE_AT
1404 | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) 2095 close (wd->fd);
1405 | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) 2096 #endif
1406 | (flags & EIO_MS_SYNC ? MS_SYNC : 0); 2097 free (wd);
1407 } 2098 }
1408
1409 return msync (mem, len, flags);
1410} 2099}
1411 2100
1412#endif 2101#if HAVE_AT
1413 2102
1414int 2103/* they forgot these */
1415eio__mtouch (void *mem, size_t len, int flags)
1416{
1417 intptr_t addr = (intptr_t)mem;
1418 intptr_t end = addr + len;
1419#ifdef PAGESIZE
1420 const intptr_t page = PAGESIZE;
1421#else
1422 static intptr_t page;
1423 2104
1424 if (!page) 2105static int
1425 page = sysconf (_SC_PAGESIZE); 2106eio__truncateat (int dirfd, const char *path, off_t length)
1426#endif 2107{
2108 int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC);
2109 int res;
1427 2110
1428 /* round down to start of page, although this is probably useless */ 2111 if (fd < 0)
1429 addr &= ~(page - 1); /* assume page size is always a power of two */ 2112 return fd;
1430 2113
1431 if (addr < end) 2114 res = ftruncate (fd, length);
1432 if (flags & EIO_MT_MODIFY) /* modify */ 2115 close (fd);
1433 do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len);
1434 else
1435 do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len);
1436
1437 return 0; 2116 return res;
1438} 2117}
2118
2119static int
2120eio__statvfsat (int dirfd, const char *path, struct statvfs *buf)
2121{
2122 int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC);
2123 int res;
2124
2125 if (fd < 0)
2126 return fd;
2127
2128 res = fstatvfs (fd, buf);
2129 close (fd);
2130 return res;
2131
2132}
2133
2134#endif
1439 2135
1440/*****************************************************************************/ 2136/*****************************************************************************/
1441 2137
1442#define ALLOC(len) \ 2138#define ALLOC(len) \
1443 if (!req->ptr2) \ 2139 if (!req->ptr2) \
… …
1452 req->result = -1; \ 2148 req->result = -1; \
1453 break; \ 2149 break; \
1454 } \ 2150 } \
1455 } 2151 }
1456 2152
2153static void ecb_noinline ecb_cold
2154etp_proc_init (void)
2155{
2156#if HAVE_PRCTL_SET_NAME
2157 /* provide a more sensible "thread name" */
2158 char name[16 + 1];
2159 const int namelen = sizeof (name) - 1;
2160 int len;
2161
2162 prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0);
2163 name [namelen] = 0;
2164 len = strlen (name);
2165 strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio");
2166 prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
2167#endif
2168}
2169
1457X_THREAD_PROC (etp_proc) 2170X_THREAD_PROC (etp_proc)
1458{ 2171{
1459 ETP_REQ *req; 2172 ETP_REQ *req;
1460 struct timespec ts; 2173 struct timespec ts;
1461 etp_worker *self = (etp_worker *)thr_arg; 2174 etp_worker *self = (etp_worker *)thr_arg;
1462 2175
2176 etp_proc_init ();
2177
1463 /* try to distribute timeouts somewhat randomly */ 2178 /* try to distribute timeouts somewhat evenly */
1464 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); 2179 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1465 2180
1466 for (;;) 2181 for (;;)
1467 { 2182 {
2183 ts.tv_sec = 0;
2184
1468 X_LOCK (reqlock); 2185 X_LOCK (reqlock);
1469 2186
1470 for (;;) 2187 for (;;)
1471 { 2188 {
1472 self->req = req = reqq_shift (&req_queue); 2189 req = reqq_shift (&req_queue);
1473 2190
1474 if (req) 2191 if (req)
1475 break; 2192 break;
1476 2193
2194 if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */
2195 {
2196 X_UNLOCK (reqlock);
2197 X_LOCK (wrklock);
2198 --started;
2199 X_UNLOCK (wrklock);
2200 goto quit;
2201 }
2202
1477 ++idle; 2203 ++idle;
1478 2204
1479 ts.tv_sec = time (0) + IDLE_TIMEOUT; 2205 if (idle <= max_idle)
1480 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) 2206 /* we are allowed to idle, so do so without any timeout */
2207 X_COND_WAIT (reqwait, reqlock);
2208 else
1481 { 2209 {
1482 if (idle > max_idle) 2210 /* initialise timeout once */
1483 { 2211 if (!ts.tv_sec)
1484 --idle; 2212 ts.tv_sec = time (0) + idle_timeout;
1485 X_UNLOCK (reqlock);
1486 X_LOCK (wrklock);
1487 --started;
1488 X_UNLOCK (wrklock);
1489 goto quit;
1490 }
1491 2213
1492 /* we are allowed to idle, so do so without any timeout */
1493 X_COND_WAIT (reqwait, reqlock); 2214 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT)
2215 ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */
1494 } 2216 }
1495 2217
1496 --idle; 2218 --idle;
1497 } 2219 }
1498 2220
… …
1501 X_UNLOCK (reqlock); 2223 X_UNLOCK (reqlock);
1502 2224
1503 if (req->type < 0) 2225 if (req->type < 0)
1504 goto quit; 2226 goto quit;
1505 2227
1506 if (!EIO_CANCELLED (req))
1507 ETP_EXECUTE (self, req); 2228 ETP_EXECUTE (self, req);
1508 2229
1509 X_LOCK (reslock); 2230 X_LOCK (reslock);
1510 2231
1511 ++npending; 2232 ++npending;
1512 2233
1513 if (!reqq_push (&res_queue, req) && want_poll_cb) 2234 if (!reqq_push (&res_queue, req) && want_poll_cb)
1514 want_poll_cb (); 2235 want_poll_cb ();
1515 2236
1516 self->req = 0;
1517 etp_worker_clear (self); 2237 etp_worker_clear (self);
1518 2238
1519 X_UNLOCK (reslock); 2239 X_UNLOCK (reslock);
1520 } 2240 }
1521 2241
1522quit: 2242quit:
2243 free (req);
2244
1523 X_LOCK (wrklock); 2245 X_LOCK (wrklock);
1524 etp_worker_free (self); 2246 etp_worker_free (self);
1525 X_UNLOCK (wrklock); 2247 X_UNLOCK (wrklock);
1526 2248
1527 return 0; 2249 return 0;
1528} 2250}
1529 2251
1530/*****************************************************************************/ 2252/*****************************************************************************/
1531 2253
2254int ecb_cold
1532int eio_init (void (*want_poll)(void), void (*done_poll)(void)) 2255eio_init (void (*want_poll)(void), void (*done_poll)(void))
1533{ 2256{
2257#if !HAVE_PREADWRITE
2258 X_MUTEX_CREATE (preadwritelock);
2259#endif
2260
1534 return etp_init (want_poll, done_poll); 2261 return etp_init (want_poll, done_poll);
1535} 2262}
1536 2263
2264ecb_inline void
1537static void eio_api_destroy (eio_req *req) 2265eio_api_destroy (eio_req *req)
1538{ 2266{
1539 free (req); 2267 free (req);
1540} 2268}
1541 2269
1542#define REQ(rtype) \ 2270#define REQ(rtype) \
… …
1561 { \ 2289 { \
1562 eio_api_destroy (req); \ 2290 eio_api_destroy (req); \
1563 return 0; \ 2291 return 0; \
1564 } 2292 }
1565 2293
2294static void
1566static void eio_execute (etp_worker *self, eio_req *req) 2295eio_execute (etp_worker *self, eio_req *req)
1567{ 2296{
1568 errno = 0; 2297#if HAVE_AT
2298 int dirfd;
2299#else
2300 const char *path;
2301#endif
2302
2303 if (ecb_expect_false (EIO_CANCELLED (req)))
2304 {
2305 req->result = -1;
2306 req->errorno = ECANCELED;
2307 return;
2308 }
2309
2310 if (ecb_expect_false (req->wd == EIO_INVALID_WD))
2311 {
2312 req->result = -1;
2313 req->errorno = ENOENT;
2314 return;
2315 }
2316
2317 if (req->type >= EIO_OPEN)
2318 {
2319 #if HAVE_AT
2320 dirfd = WD2FD (req->wd);
2321 #else
2322 path = wd_expand (&self->tmpbuf, req->wd, req->ptr1);
2323 #endif
2324 }
1569 2325
1570 switch (req->type) 2326 switch (req->type)
1571 { 2327 {
2328 case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1);
2329 req->result = req->wd == EIO_INVALID_WD ? -1 : 0;
2330 break;
2331 case EIO_WD_CLOSE: req->result = 0;
2332 eio_wd_close_sync (req->wd); break;
2333
2334 case EIO_SEEK: eio__lseek (req); break;
1572 case EIO_READ: ALLOC (req->size); 2335 case EIO_READ: ALLOC (req->size);
1573 req->result = req->offs >= 0 2336 req->result = req->offs >= 0
1574 ? pread (req->int1, req->ptr2, req->size, req->offs) 2337 ? pread (req->int1, req->ptr2, req->size, req->offs)
1575 : read (req->int1, req->ptr2, req->size); break; 2338 : read (req->int1, req->ptr2, req->size); break;
1576 case EIO_WRITE: req->result = req->offs >= 0 2339 case EIO_WRITE: req->result = req->offs >= 0
1577 ? pwrite (req->int1, req->ptr2, req->size, req->offs) 2340 ? pwrite (req->int1, req->ptr2, req->size, req->offs)
1578 : write (req->int1, req->ptr2, req->size); break; 2341 : write (req->int1, req->ptr2, req->size); break;
1579 2342
1580 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 2343 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1581 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; 2344 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
2345
2346#if HAVE_AT
1582 2347
1583 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); 2348 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1584 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 2349 req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break;
1585 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); 2350 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1586 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 2351 req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break;
1587 case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); 2352 case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break;
1588 req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; 2353 case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break;
2354 case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break;
2355 case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break;
1589 2356
2357 case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break;
2358 case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break;
2359 case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break;
2360 case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break;
2361 case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break;
2362 case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break;
2363 case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
2364 case EIO_READLINK: ALLOC (PATH_MAX);
2365 req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break;
1590 case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); 2366 case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1591 req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; 2367 req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1592 case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
1593 req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
1594
1595 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1596 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1597 case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
1598 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
1599 case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1600 case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1601
1602 case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break;
1603 case EIO_CLOSE: req->result = close (req->int1); break;
1604 case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
1605 case EIO_UNLINK: req->result = unlink (req->ptr1); break;
1606 case EIO_RMDIR: req->result = rmdir (req->ptr1); break;
1607 case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
1608 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
1609 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
1610 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
1611 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->int3); break;
1612
1613 case EIO_READLINK: ALLOC (NAME_MAX);
1614 req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;
1615
1616 case EIO_SYNC: req->result = 0; sync (); break;
1617 case EIO_FSYNC: req->result = fsync (req->int1); break;
1618 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
1619 case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
1620 case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break;
1621 case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
1622
1623 case EIO_READDIR: eio__scandir (req, self); break;
1624
1625 case EIO_BUSY: 2368 case EIO_UTIME:
1626#ifdef _WIN32 2369 case EIO_FUTIME:
1627 Sleep (req->nv1 * 1000.); 2370 {
2371 struct timespec ts[2];
2372 struct timespec *times;
2373
2374 if (req->nv1 != -1. || req->nv2 != -1.)
2375 {
2376 ts[0].tv_sec = req->nv1;
2377 ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9;
2378 ts[1].tv_sec = req->nv2;
2379 ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9;
2380
2381 times = ts;
2382 }
2383 else
2384 times = 0;
2385
2386 req->result = req->type == EIO_FUTIME
2387 ? futimens (req->int1, times)
2388 : utimensat (dirfd, req->ptr1, times, 0);
2389 }
2390 break;
2391
1628#else 2392#else
1629 {
1630 struct timeval tv;
1631 2393
1632 tv.tv_sec = req->nv1; 2394 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
1633 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; 2395 req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
2396 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2397 req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break;
2398 case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break;
2399 case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break;
2400 case EIO_TRUNCATE: req->result = truncate (path , req->offs); break;
2401 case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break;
1634 2402
1635 req->result = select (0, 0, 0, 0, &tv); 2403 case EIO_UNLINK: req->result = unlink (path ); break;
1636 } 2404 case EIO_RMDIR: req->result = rmdir (path ); break;
1637#endif 2405 case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break;
1638 break; 2406 case EIO_RENAME: req->result = rename (path , req->ptr2); break;
2407 case EIO_LINK: req->result = link (path , req->ptr2); break;
2408 case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break;
2409 case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break;
2410 case EIO_READLINK: ALLOC (PATH_MAX);
2411 req->result = readlink (path, req->ptr2, PATH_MAX); break;
2412 case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2413 req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break;
1639 2414
1640 case EIO_UTIME: 2415 case EIO_UTIME:
1641 case EIO_FUTIME: 2416 case EIO_FUTIME:
1642 { 2417 {
1643 struct timeval tv[2]; 2418 struct timeval tv[2];
1644 struct timeval *times; 2419 struct timeval *times;
1645 2420
1646 if (req->nv1 != -1. || req->nv2 != -1.) 2421 if (req->nv1 != -1. || req->nv2 != -1.)
1647 { 2422 {
1648 tv[0].tv_sec = req->nv1; 2423 tv[0].tv_sec = req->nv1;
1649 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; 2424 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6;
1650 tv[1].tv_sec = req->nv2; 2425 tv[1].tv_sec = req->nv2;
1651 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; 2426 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6;
1652 2427
1653 times = tv; 2428 times = tv;
1654 } 2429 }
1655 else 2430 else
1656 times = 0; 2431 times = 0;
1657
1658 2432
1659 req->result = req->type == EIO_FUTIME 2433 req->result = req->type == EIO_FUTIME
1660 ? futimes (req->int1, times) 2434 ? futimes (req->int1, times)
1661 : utimes (req->ptr1, times); 2435 : utimes (req->ptr1, times);
1662 } 2436 }
1663 break; 2437 break;
1664 2438
2439#endif
2440
2441 case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1)))
2442 {
2443 ALLOC (req->result);
2444 memcpy (req->ptr2, self->tmpbuf.ptr, req->result);
2445 }
2446 break;
2447
2448 case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2449 req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
2450
2451 case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
2452 req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
2453
2454 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
2455 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
2456 case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
2457
2458 case EIO_CLOSE: req->result = close (req->int1); break;
2459 case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
2460 case EIO_SYNC: req->result = 0; sync (); break;
2461 case EIO_FSYNC: req->result = fsync (req->int1); break;
2462 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
2463 case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
2464 case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
2465 case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
2466 case EIO_MTOUCH: req->result = eio__mtouch (req); break;
2467 case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
2468 case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
2469 case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
2470
2471 case EIO_READDIR: eio__scandir (req, self); break;
2472
2473 case EIO_BUSY:
2474#ifdef _WIN32
2475 Sleep (req->nv1 * 1e3);
2476#else
2477 {
2478 struct timeval tv;
2479
2480 tv.tv_sec = req->nv1;
2481 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1e6;
2482
2483 req->result = select (0, 0, 0, 0, &tv);
2484 }
2485#endif
2486 break;
2487
1665 case EIO_GROUP: 2488 case EIO_GROUP:
1666 abort (); /* handled in eio_request */ 2489 abort (); /* handled in eio_request */
1667 2490
1668 case EIO_NOP: 2491 case EIO_NOP:
1669 req->result = 0; 2492 req->result = 0;
1670 break; 2493 break;
1671 2494
1672 case EIO_CUSTOM: 2495 case EIO_CUSTOM:
1673 ((void (*)(eio_req *))req->feed) (req); 2496 req->feed (req);
1674 break; 2497 break;
1675 2498
1676 default: 2499 default:
2500 errno = ENOSYS;
1677 req->result = -1; 2501 req->result = -1;
1678 break; 2502 break;
1679 } 2503 }
1680 2504
1681 req->errorno = errno; 2505 req->errorno = errno;
1682} 2506}
1683 2507
1684#ifndef EIO_NO_WRAPPERS 2508#ifndef EIO_NO_WRAPPERS
1685 2509
2510eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data)
2511{
2512 REQ (EIO_WD_OPEN); PATH; SEND;
2513}
2514
2515eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data)
2516{
2517 REQ (EIO_WD_CLOSE); req->wd = wd; SEND;
2518}
2519
1686eio_req *eio_nop (int pri, eio_cb cb, void *data) 2520eio_req *eio_nop (int pri, eio_cb cb, void *data)
1687{ 2521{
1688 REQ (EIO_NOP); SEND; 2522 REQ (EIO_NOP); SEND;
1689} 2523}
1690 2524
… …
1706eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) 2540eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
1707{ 2541{
1708 REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; 2542 REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
1709} 2543}
1710 2544
2545eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
2546{
2547 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
2548}
2549
2550eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data)
2551{
2552 REQ (EIO_SYNCFS); req->int1 = fd; SEND;
2553}
2554
2555eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
2556{
2557 REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
2558}
2559
1711eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) 2560eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
1712{ 2561{
1713 REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; 2562 REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
1714} 2563}
1715 2564
1716eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) 2565eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data)
1717{ 2566{
1718 REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; 2567 REQ (EIO_MLOCK); req->ptr2 = addr; req->size = length; SEND;
1719} 2568}
1720 2569
1721eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) 2570eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
1722{ 2571{
1723 REQ (EIO_FDATASYNC); req->int1 = fd; SEND; 2572 REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
2573}
2574
2575eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)
2576{
2577 REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;
1724} 2578}
1725 2579
1726eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) 2580eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
1727{ 2581{
1728 REQ (EIO_CLOSE); req->int1 = fd; SEND; 2582 REQ (EIO_CLOSE); req->int1 = fd; SEND;
… …
1731eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) 2585eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)
1732{ 2586{
1733 REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; 2587 REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
1734} 2588}
1735 2589
2590eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data)
2591{
2592 REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND;
2593}
2594
1736eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) 2595eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1737{ 2596{
1738 REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; 2597 REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1739} 2598}
1740 2599
… …
1766eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) 2625eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
1767{ 2626{
1768 REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; 2627 REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
1769} 2628}
1770 2629
1771eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) 2630eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
1772{ 2631{
1773 REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; 2632 REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1774} 2633}
1775 2634
1776eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) 2635eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
… …
1796eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) 2655eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
1797{ 2656{
1798 REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; 2657 REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
1799} 2658}
1800 2659
1801eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) 2660eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data)
1802{ 2661{
1803 REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; 2662 REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1804} 2663}
1805 2664
1806eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) 2665eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
… …
1822eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) 2681eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data)
1823{ 2682{
1824 return eio__1path (EIO_READLINK, path, pri, cb, data); 2683 return eio__1path (EIO_READLINK, path, pri, cb, data);
1825} 2684}
1826 2685
2686eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data)
2687{
2688 return eio__1path (EIO_REALPATH, path, pri, cb, data);
2689}
2690
1827eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) 2691eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data)
1828{ 2692{
1829 return eio__1path (EIO_STAT, path, pri, cb, data); 2693 return eio__1path (EIO_STAT, path, pri, cb, data);
1830} 2694}
1831 2695
… …
1854 REQ (EIO_READDIR); PATH; req->int1 = flags; SEND; 2718 REQ (EIO_READDIR); PATH; req->int1 = flags; SEND;
1855} 2719}
1856 2720
1857eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) 2721eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data)
1858{ 2722{
1859 REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int3 = (long)dev; SEND; 2723 REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->offs = (off_t)dev; SEND;
1860} 2724}
1861 2725
1862static eio_req * 2726static eio_req *
1863eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) 2727eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1864{ 2728{
… …
1888eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) 2752eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1889{ 2753{
1890 return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); 2754 return eio__2path (EIO_RENAME, path, new_path, pri, cb, data);
1891} 2755}
1892 2756
1893eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) 2757eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data)
1894{ 2758{
1895 REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND; 2759 REQ (EIO_CUSTOM); req->feed = execute; SEND;
1896} 2760}
1897 2761
1898#endif 2762#endif
1899 2763
1900eio_req *eio_grp (eio_cb cb, void *data) 2764eio_req *eio_grp (eio_cb cb, void *data)
… …
1909#undef SEND 2773#undef SEND
1910 2774
1911/*****************************************************************************/ 2775/*****************************************************************************/
1912/* grp functions */ 2776/* grp functions */
1913 2777
2778void
1914void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) 2779eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit)
1915{ 2780{
1916 grp->int2 = limit; 2781 grp->int2 = limit;
1917 grp->feed = feed; 2782 grp->feed = feed;
1918 2783
1919 grp_try_feed (grp); 2784 grp_try_feed (grp);
1920} 2785}
1921 2786
2787void
1922void eio_grp_limit (eio_req *grp, int limit) 2788eio_grp_limit (eio_req *grp, int limit)
1923{ 2789{
1924 grp->int2 = limit; 2790 grp->int2 = limit;
1925 2791
1926 grp_try_feed (grp); 2792 grp_try_feed (grp);
1927} 2793}
1928 2794
2795void
1929void eio_grp_add (eio_req *grp, eio_req *req) 2796eio_grp_add (eio_req *grp, eio_req *req)
1930{ 2797{
1931 assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); 2798 assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2));
1932 2799
1933 grp->flags |= EIO_FLAG_GROUPADD; 2800 grp->flags |= EIO_FLAG_GROUPADD;
1934 2801
… …
1945} 2812}
1946 2813
1947/*****************************************************************************/ 2814/*****************************************************************************/
1948/* misc garbage */ 2815/* misc garbage */
1949 2816
2817eio_ssize_t
1950ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) 2818eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
1951{ 2819{
1952 etp_worker wrk;
1953 ssize_t ret;
1954
1955 wrk.dbuf = 0;
1956
1957 ret = eio__sendfile (ofd, ifd, offset, count, &wrk); 2820 return eio__sendfile (ofd, ifd, offset, count);
1958
1959 if (wrk.dbuf)
1960 free (wrk.dbuf);
1961
1962 return ret;
1963} 2821}
1964 2822

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