1 | /* |
1 | /* |
2 | * libeio implementation |
2 | * libeio implementation |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
… | |
… | |
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 | #include "eio.h" |
40 | #include "eio.h" |
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41 | |
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42 | #ifdef EIO_STACKSIZE |
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43 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
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44 | #endif |
41 | #include "xthread.h" |
45 | #include "xthread.h" |
42 | |
46 | |
43 | #include <errno.h> |
47 | #include <errno.h> |
44 | #include <stddef.h> |
48 | #include <stddef.h> |
45 | #include <stdlib.h> |
49 | #include <stdlib.h> |
… | |
… | |
64 | #endif |
68 | #endif |
65 | |
69 | |
66 | #ifdef _WIN32 |
70 | #ifdef _WIN32 |
67 | |
71 | |
68 | /*doh*/ |
72 | /*doh*/ |
69 | |
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70 | #else |
73 | #else |
71 | |
74 | |
72 | # include "config.h" |
75 | # include "config.h" |
73 | # include <sys/time.h> |
76 | # include <sys/time.h> |
74 | # include <sys/select.h> |
77 | # include <sys/select.h> |
75 | # include <unistd.h> |
78 | # include <unistd.h> |
76 | # include <utime.h> |
79 | # include <utime.h> |
77 | # include <signal.h> |
80 | # include <signal.h> |
78 | # include <dirent.h> |
81 | # include <dirent.h> |
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82 | |
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83 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
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84 | # if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) |
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85 | # define D_INO(de) (de)->d_fileno |
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86 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
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87 | # elif defined(__linux) || defined(d_ino) || _XOPEN_SOURCE >= 600 |
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88 | # define D_INO(de) (de)->d_ino |
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89 | # endif |
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90 | |
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91 | # ifdef _DIRENT_HAVE_D_TYPE |
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92 | # define D_TYPE(de) (de)->d_type |
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93 | # endif |
79 | |
94 | |
80 | # ifndef EIO_STRUCT_DIRENT |
95 | # ifndef EIO_STRUCT_DIRENT |
81 | # define EIO_STRUCT_DIRENT struct dirent |
96 | # define EIO_STRUCT_DIRENT struct dirent |
82 | # endif |
97 | # endif |
83 | |
98 | |
… | |
… | |
96 | # else |
111 | # else |
97 | # error sendfile support requested but not available |
112 | # error sendfile support requested but not available |
98 | # endif |
113 | # endif |
99 | #endif |
114 | #endif |
100 | |
115 | |
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116 | #ifndef D_TYPE |
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117 | # define D_TYPE(de) 0 |
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118 | #endif |
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119 | |
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120 | #ifndef D_INO |
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121 | # define D_INO(de) 0 |
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122 | #endif |
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123 | |
101 | /* number of seconds after which an idle threads exit */ |
124 | /* number of seconds after which an idle threads exit */ |
102 | #define IDLE_TIMEOUT 10 |
125 | #define IDLE_TIMEOUT 10 |
103 | |
126 | |
104 | /* used for struct dirent, AIX doesn't provide it */ |
127 | /* used for struct dirent, AIX doesn't provide it */ |
105 | #ifndef NAME_MAX |
128 | #ifndef NAME_MAX |
… | |
… | |
120 | |
143 | |
121 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
144 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
122 | |
145 | |
123 | /*****************************************************************************/ |
146 | /*****************************************************************************/ |
124 | |
147 | |
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148 | #if __GNUC__ >= 3 |
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149 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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150 | #else |
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151 | # define expect(expr,value) (expr) |
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152 | #endif |
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153 | |
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154 | #define expect_false(expr) expect ((expr) != 0, 0) |
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155 | #define expect_true(expr) expect ((expr) != 0, 1) |
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156 | |
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157 | /*****************************************************************************/ |
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158 | |
125 | #define ETP_PRI_MIN EIO_PRI_MIN |
159 | #define ETP_PRI_MIN EIO_PRI_MIN |
126 | #define ETP_PRI_MAX EIO_PRI_MAX |
160 | #define ETP_PRI_MAX EIO_PRI_MAX |
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161 | |
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162 | struct etp_worker; |
127 | |
163 | |
128 | #define ETP_REQ eio_req |
164 | #define ETP_REQ eio_req |
129 | #define ETP_DESTROY(req) eio_destroy (req) |
165 | #define ETP_DESTROY(req) eio_destroy (req) |
130 | static int eio_finish (eio_req *req); |
166 | static int eio_finish (eio_req *req); |
131 | #define ETP_FINISH(req) eio_finish (req) |
167 | #define ETP_FINISH(req) eio_finish (req) |
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168 | static void eio_execute (struct etp_worker *self, eio_req *req); |
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169 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
132 | |
170 | |
133 | #define ETP_WORKER_CLEAR(req) \ |
171 | #define ETP_WORKER_CLEAR(req) \ |
134 | if (wrk->dbuf) \ |
172 | if (wrk->dbuf) \ |
135 | { \ |
173 | { \ |
136 | free (wrk->dbuf); \ |
174 | free (wrk->dbuf); \ |
… | |
… | |
140 | if (wrk->dirp) \ |
178 | if (wrk->dirp) \ |
141 | { \ |
179 | { \ |
142 | closedir (wrk->dirp); \ |
180 | closedir (wrk->dirp); \ |
143 | wrk->dirp = 0; \ |
181 | wrk->dirp = 0; \ |
144 | } |
182 | } |
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183 | |
145 | #define ETP_WORKER_COMMON \ |
184 | #define ETP_WORKER_COMMON \ |
146 | void *dbuf; \ |
185 | void *dbuf; \ |
147 | DIR *dirp; |
186 | DIR *dirp; |
148 | |
187 | |
149 | /*****************************************************************************/ |
188 | /*****************************************************************************/ |
… | |
… | |
172 | |
211 | |
173 | static mutex_t wrklock = X_MUTEX_INIT; |
212 | static mutex_t wrklock = X_MUTEX_INIT; |
174 | static mutex_t reslock = X_MUTEX_INIT; |
213 | static mutex_t reslock = X_MUTEX_INIT; |
175 | static mutex_t reqlock = X_MUTEX_INIT; |
214 | static mutex_t reqlock = X_MUTEX_INIT; |
176 | static cond_t reqwait = X_COND_INIT; |
215 | static cond_t reqwait = X_COND_INIT; |
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216 | |
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217 | #if !HAVE_PREADWRITE |
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218 | /* |
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219 | * make our pread/pwrite emulation safe against themselves, but not against |
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220 | * normal read/write by using a mutex. slows down execution a lot, |
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221 | * but that's your problem, not mine. |
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222 | */ |
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223 | static mutex_t preadwritelock = X_MUTEX_INIT; |
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224 | #endif |
177 | |
225 | |
178 | typedef struct etp_worker |
226 | typedef struct etp_worker |
179 | { |
227 | { |
180 | /* locked by wrklock */ |
228 | /* locked by wrklock */ |
181 | struct etp_worker *prev, *next; |
229 | struct etp_worker *prev, *next; |
… | |
… | |
310 | X_LOCK (reqlock); |
358 | X_LOCK (reqlock); |
311 | X_LOCK (reslock); |
359 | X_LOCK (reslock); |
312 | #if !HAVE_PREADWRITE |
360 | #if !HAVE_PREADWRITE |
313 | X_LOCK (preadwritelock); |
361 | X_LOCK (preadwritelock); |
314 | #endif |
362 | #endif |
315 | #if !HAVE_READDIR_R |
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316 | X_LOCK (readdirlock); |
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317 | #endif |
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318 | } |
363 | } |
319 | |
364 | |
320 | static void etp_atfork_parent (void) |
365 | static void etp_atfork_parent (void) |
321 | { |
366 | { |
322 | #if !HAVE_READDIR_R |
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323 | X_UNLOCK (readdirlock); |
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324 | #endif |
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325 | #if !HAVE_PREADWRITE |
367 | #if !HAVE_PREADWRITE |
326 | X_UNLOCK (preadwritelock); |
368 | X_UNLOCK (preadwritelock); |
327 | #endif |
369 | #endif |
328 | X_UNLOCK (reslock); |
370 | X_UNLOCK (reslock); |
329 | X_UNLOCK (reqlock); |
371 | X_UNLOCK (reqlock); |
… | |
… | |
332 | |
374 | |
333 | static void etp_atfork_child (void) |
375 | static void etp_atfork_child (void) |
334 | { |
376 | { |
335 | ETP_REQ *prv; |
377 | ETP_REQ *prv; |
336 | |
378 | |
337 | while (prv = reqq_shift (&req_queue)) |
379 | while ((prv = reqq_shift (&req_queue))) |
338 | ETP_DESTROY (prv); |
380 | ETP_DESTROY (prv); |
339 | |
381 | |
340 | while (prv = reqq_shift (&res_queue)) |
382 | while ((prv = reqq_shift (&res_queue))) |
341 | ETP_DESTROY (prv); |
383 | ETP_DESTROY (prv); |
342 | |
384 | |
343 | while (wrk_first.next != &wrk_first) |
385 | while (wrk_first.next != &wrk_first) |
344 | { |
386 | { |
345 | etp_worker *wrk = wrk_first.next; |
387 | etp_worker *wrk = wrk_first.next; |
… | |
… | |
373 | |
415 | |
374 | pthread_once (&doinit, etp_once_init); |
416 | pthread_once (&doinit, etp_once_init); |
375 | |
417 | |
376 | want_poll_cb = want_poll; |
418 | want_poll_cb = want_poll; |
377 | done_poll_cb = done_poll; |
419 | done_poll_cb = done_poll; |
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420 | |
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421 | return 0; |
378 | } |
422 | } |
379 | |
423 | |
380 | X_THREAD_PROC (etp_proc); |
424 | X_THREAD_PROC (etp_proc); |
381 | |
425 | |
382 | static void etp_start_thread (void) |
426 | static void etp_start_thread (void) |
… | |
… | |
402 | X_UNLOCK (wrklock); |
446 | X_UNLOCK (wrklock); |
403 | } |
447 | } |
404 | |
448 | |
405 | static void etp_maybe_start_thread (void) |
449 | static void etp_maybe_start_thread (void) |
406 | { |
450 | { |
407 | if (etp_nthreads () >= wanted) |
451 | if (expect_true (etp_nthreads () >= wanted)) |
408 | return; |
452 | return; |
409 | |
453 | |
410 | /* todo: maybe use idle here, but might be less exact */ |
454 | /* todo: maybe use idle here, but might be less exact */ |
411 | if (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ()) |
455 | if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
412 | return; |
456 | return; |
413 | |
457 | |
414 | etp_start_thread (); |
458 | etp_start_thread (); |
415 | } |
459 | } |
416 | |
460 | |
… | |
… | |
469 | |
513 | |
470 | X_LOCK (reqlock); |
514 | X_LOCK (reqlock); |
471 | --nreqs; |
515 | --nreqs; |
472 | X_UNLOCK (reqlock); |
516 | X_UNLOCK (reqlock); |
473 | |
517 | |
474 | if (req->type == EIO_GROUP && req->size) |
518 | if (expect_false (req->type == EIO_GROUP && req->size)) |
475 | { |
519 | { |
476 | req->int1 = 1; /* mark request as delayed */ |
520 | req->int1 = 1; /* mark request as delayed */ |
477 | continue; |
521 | continue; |
478 | } |
522 | } |
479 | else |
523 | else |
480 | { |
524 | { |
481 | int res = ETP_FINISH (req); |
525 | int res = ETP_FINISH (req); |
482 | if (res) |
526 | if (expect_false (res)) |
483 | return res; |
527 | return res; |
484 | } |
528 | } |
485 | |
529 | |
486 | if (maxreqs && !--maxreqs) |
530 | if (expect_false (maxreqs && !--maxreqs)) |
487 | break; |
531 | break; |
488 | |
532 | |
489 | if (maxtime) |
533 | if (maxtime) |
490 | { |
534 | { |
491 | gettimeofday (&tv_now, 0); |
535 | gettimeofday (&tv_now, 0); |
… | |
… | |
510 | |
554 | |
511 | static void etp_submit (ETP_REQ *req) |
555 | static void etp_submit (ETP_REQ *req) |
512 | { |
556 | { |
513 | req->pri -= ETP_PRI_MIN; |
557 | req->pri -= ETP_PRI_MIN; |
514 | |
558 | |
515 | if (req->pri < ETP_PRI_MIN - ETP_PRI_MIN) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
559 | if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
516 | if (req->pri > ETP_PRI_MAX - ETP_PRI_MIN) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
560 | if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
517 | |
561 | |
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562 | if (expect_false (req->type == EIO_GROUP)) |
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563 | { |
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564 | /* I hope this is worth it :/ */ |
518 | X_LOCK (reqlock); |
565 | X_LOCK (reqlock); |
519 | ++nreqs; |
566 | ++nreqs; |
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567 | X_UNLOCK (reqlock); |
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568 | |
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569 | X_LOCK (reslock); |
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570 | |
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571 | ++npending; |
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572 | |
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573 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
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574 | want_poll_cb (); |
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575 | |
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576 | X_UNLOCK (reslock); |
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577 | } |
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578 | else |
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579 | { |
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580 | X_LOCK (reqlock); |
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581 | ++nreqs; |
520 | ++nready; |
582 | ++nready; |
521 | reqq_push (&req_queue, req); |
583 | reqq_push (&req_queue, req); |
522 | X_COND_SIGNAL (reqwait); |
584 | X_COND_SIGNAL (reqwait); |
523 | X_UNLOCK (reqlock); |
585 | X_UNLOCK (reqlock); |
524 | |
586 | |
525 | etp_maybe_start_thread (); |
587 | etp_maybe_start_thread (); |
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588 | } |
526 | } |
589 | } |
527 | |
590 | |
528 | static void etp_set_max_poll_time (double nseconds) |
591 | static void etp_set_max_poll_time (double nseconds) |
529 | { |
592 | { |
530 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
593 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
… | |
… | |
565 | |
628 | |
566 | static void grp_try_feed (eio_req *grp) |
629 | static void grp_try_feed (eio_req *grp) |
567 | { |
630 | { |
568 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
631 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
569 | { |
632 | { |
570 | int old_len = grp->size; |
633 | grp->flags &= ~EIO_FLAG_GROUPADD; |
571 | |
634 | |
572 | EIO_FEED (grp); |
635 | EIO_FEED (grp); |
573 | |
636 | |
574 | /* stop if no progress has been made */ |
637 | /* stop if no progress has been made */ |
575 | if (old_len == grp->size) |
638 | if (!(grp->flags & EIO_FLAG_GROUPADD)) |
576 | { |
639 | { |
577 | grp->feed = 0; |
640 | grp->feed = 0; |
578 | break; |
641 | break; |
579 | } |
642 | } |
580 | } |
643 | } |
… | |
… | |
697 | |
760 | |
698 | /*****************************************************************************/ |
761 | /*****************************************************************************/ |
699 | /* work around various missing functions */ |
762 | /* work around various missing functions */ |
700 | |
763 | |
701 | #if !HAVE_PREADWRITE |
764 | #if !HAVE_PREADWRITE |
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765 | # undef pread |
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766 | # undef pwrite |
702 | # define pread eio__pread |
767 | # define pread eio__pread |
703 | # define pwrite eio__pwrite |
768 | # define pwrite eio__pwrite |
704 | |
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705 | /* |
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706 | * make our pread/pwrite safe against themselves, but not against |
|
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707 | * normal read/write by using a mutex. slows down execution a lot, |
|
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708 | * but that's your problem, not mine. |
|
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709 | */ |
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710 | static mutex_t preadwritelock = X_MUTEX_INIT; |
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711 | |
769 | |
712 | static ssize_t |
770 | static ssize_t |
713 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
771 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
714 | { |
772 | { |
715 | ssize_t res; |
773 | ssize_t res; |
… | |
… | |
733 | |
791 | |
734 | X_LOCK (preadwritelock); |
792 | X_LOCK (preadwritelock); |
735 | ooffset = lseek (fd, 0, SEEK_CUR); |
793 | ooffset = lseek (fd, 0, SEEK_CUR); |
736 | lseek (fd, offset, SEEK_SET); |
794 | lseek (fd, offset, SEEK_SET); |
737 | res = write (fd, buf, count); |
795 | res = write (fd, buf, count); |
738 | lseek (fd, offset, SEEK_SET); |
796 | lseek (fd, ooffset, SEEK_SET); |
739 | X_UNLOCK (preadwritelock); |
797 | X_UNLOCK (preadwritelock); |
740 | |
798 | |
741 | return res; |
799 | return res; |
742 | } |
800 | } |
743 | #endif |
801 | #endif |
744 | |
802 | |
745 | #ifndef HAVE_FUTIMES |
803 | #ifndef HAVE_FUTIMES |
746 | |
804 | |
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805 | # undef utimes |
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806 | # undef futimes |
747 | # define utimes(path,times) eio__utimes (path, times) |
807 | # define utimes(path,times) eio__utimes (path, times) |
748 | # define futimes(fd,times) eio__futimes (fd, times) |
808 | # define futimes(fd,times) eio__futimes (fd, times) |
749 | |
809 | |
750 | static int |
810 | static int |
751 | eio__utimes (const char *filename, const struct timeval times[2]) |
811 | eio__utimes (const char *filename, const struct timeval times[2]) |
… | |
… | |
770 | } |
830 | } |
771 | |
831 | |
772 | #endif |
832 | #endif |
773 | |
833 | |
774 | #if !HAVE_FDATASYNC |
834 | #if !HAVE_FDATASYNC |
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835 | # undef fdatasync |
775 | # define fdatasync fsync |
836 | # define fdatasync(fd) fsync (fd) |
776 | #endif |
837 | #endif |
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838 | |
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839 | /* sync_file_range always needs emulation */ |
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840 | int |
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841 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
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842 | { |
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843 | #if HAVE_SYNC_FILE_RANGE |
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844 | int res; |
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845 | |
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|
846 | if (EIO_SYNC_FILE_RANGE_WAIT_BEFORE != SYNC_FILE_RANGE_WAIT_BEFORE |
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847 | || EIO_SYNC_FILE_RANGE_WRITE != SYNC_FILE_RANGE_WRITE |
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848 | || EIO_SYNC_FILE_RANGE_WAIT_AFTER != SYNC_FILE_RANGE_WAIT_AFTER) |
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849 | { |
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850 | flags = 0 |
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851 | | (flags & EIO_SYNC_FILE_RANGE_WAIT_BEFORE ? SYNC_FILE_RANGE_WAIT_BEFORE : 0) |
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852 | | (flags & EIO_SYNC_FILE_RANGE_WRITE ? SYNC_FILE_RANGE_WRITE : 0) |
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853 | | (flags & EIO_SYNC_FILE_RANGE_WAIT_AFTER ? SYNC_FILE_RANGE_WAIT_AFTER : 0); |
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854 | } |
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855 | |
|
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856 | res = sync_file_range (fd, offset, nbytes, flags); |
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857 | |
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858 | if (!res || errno != ENOSYS) |
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|
859 | return res; |
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860 | #endif |
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861 | |
|
|
862 | /* even though we could play tricks with the flags, it's better to always |
|
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863 | * call fdatasync, as thta matches the expectation of it's users best */ |
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864 | return fdatasync (fd); |
|
|
865 | } |
777 | |
866 | |
778 | #if !HAVE_READAHEAD |
867 | #if !HAVE_READAHEAD |
|
|
868 | # undef readahead |
779 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
869 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
780 | |
870 | |
781 | static ssize_t |
871 | static ssize_t |
782 | eio__readahead (int fd, off_t offset, size_t count, worker *self) |
872 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
783 | { |
873 | { |
784 | size_t todo = count; |
874 | size_t todo = count; |
785 | dBUF; |
875 | dBUF; |
786 | |
876 | |
787 | while (todo > 0) |
877 | while (todo > 0) |
… | |
… | |
795 | |
885 | |
796 | errno = 0; |
886 | errno = 0; |
797 | return count; |
887 | return count; |
798 | } |
888 | } |
799 | |
889 | |
800 | #endif |
|
|
801 | |
|
|
802 | #if !HAVE_READDIR_R |
|
|
803 | # define readdir_r eio__readdir_r |
|
|
804 | |
|
|
805 | static mutex_t readdirlock = X_MUTEX_INIT; |
|
|
806 | |
|
|
807 | static int |
|
|
808 | eio__readdir_r (DIR *dirp, EIO_STRUCT_DIRENT *ent, EIO_STRUCT_DIRENT **res) |
|
|
809 | { |
|
|
810 | EIO_STRUCT_DIRENT *e; |
|
|
811 | int errorno; |
|
|
812 | |
|
|
813 | X_LOCK (readdirlock); |
|
|
814 | |
|
|
815 | e = readdir (dirp); |
|
|
816 | errorno = errno; |
|
|
817 | |
|
|
818 | if (e) |
|
|
819 | { |
|
|
820 | *res = ent; |
|
|
821 | strcpy (ent->d_name, e->d_name); |
|
|
822 | } |
|
|
823 | else |
|
|
824 | *res = 0; |
|
|
825 | |
|
|
826 | X_UNLOCK (readdirlock); |
|
|
827 | |
|
|
828 | errno = errorno; |
|
|
829 | return e ? 0 : -1; |
|
|
830 | } |
|
|
831 | #endif |
890 | #endif |
832 | |
891 | |
833 | /* sendfile always needs emulation */ |
892 | /* sendfile always needs emulation */ |
834 | static ssize_t |
893 | static ssize_t |
835 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
894 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
… | |
… | |
922 | } |
981 | } |
923 | |
982 | |
924 | return res; |
983 | return res; |
925 | } |
984 | } |
926 | |
985 | |
|
|
986 | static int |
|
|
987 | eio_dent_cmp (const void *a_, const void *b_) |
|
|
988 | { |
|
|
989 | const eio_dirent *a = (const eio_dirent *)a_; |
|
|
990 | const eio_dirent *b = (const eio_dirent *)b_; |
|
|
991 | |
|
|
992 | return (int)b->score - (int)a->score ? (int)b->score - (int)a->score |
|
|
993 | : a->inode < b->inode ? -1 : a->inode > b->inode ? 1 : 0; /* int might be < ino_t */ |
|
|
994 | } |
|
|
995 | |
927 | /* read a full directory */ |
996 | /* read a full directory */ |
928 | static void |
997 | static void |
929 | eio__scandir (eio_req *req, etp_worker *self) |
998 | eio__scandir (eio_req *req, etp_worker *self) |
930 | { |
999 | { |
931 | DIR *dirp; |
1000 | DIR *dirp; |
932 | union |
|
|
933 | { |
|
|
934 | EIO_STRUCT_DIRENT d; |
|
|
935 | char b [offsetof (EIO_STRUCT_DIRENT, d_name) + NAME_MAX + 1]; |
|
|
936 | } *u; |
|
|
937 | EIO_STRUCT_DIRENT *entp; |
1001 | EIO_STRUCT_DIRENT *entp; |
938 | char *name, *names; |
1002 | unsigned char *name, *names; |
939 | int memlen = 4096; |
1003 | int namesalloc = 4096; |
940 | int memofs = 0; |
1004 | int namesoffs = 0; |
|
|
1005 | int flags = req->int1; |
|
|
1006 | eio_dirent *dents = 0; |
|
|
1007 | int dentalloc = 128; |
941 | int res = 0; |
1008 | int dentoffs = 0; |
|
|
1009 | |
|
|
1010 | req->result = -1; |
|
|
1011 | |
|
|
1012 | if (!(flags & EIO_READDIR_DENTS)) |
|
|
1013 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
942 | |
1014 | |
943 | X_LOCK (wrklock); |
1015 | X_LOCK (wrklock); |
|
|
1016 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
944 | self->dirp = dirp = opendir (req->ptr1); |
1017 | self->dirp = dirp = opendir (req->ptr1); |
945 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
946 | req->flags |= EIO_FLAG_PTR2_FREE; |
1018 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
947 | req->ptr2 = names = malloc (memlen); |
1019 | req->ptr1 = names = malloc (namesalloc); |
|
|
1020 | req->ptr2 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
948 | X_UNLOCK (wrklock); |
1021 | X_UNLOCK (wrklock); |
949 | |
1022 | |
950 | if (dirp && u && names) |
1023 | if (dirp && names && (!flags || dents)) |
951 | for (;;) |
1024 | for (;;) |
952 | { |
1025 | { |
953 | errno = 0; |
1026 | errno = 0; |
954 | readdir_r (dirp, &u->d, &entp); |
1027 | entp = readdir (dirp); |
955 | |
1028 | |
956 | if (!entp) |
1029 | if (!entp) |
|
|
1030 | { |
|
|
1031 | if (errno) |
|
|
1032 | break; |
|
|
1033 | |
|
|
1034 | /* sort etc. */ |
|
|
1035 | req->int1 = flags; |
|
|
1036 | req->result = dentoffs; |
|
|
1037 | |
|
|
1038 | if (dents) |
|
|
1039 | { |
|
|
1040 | eio_dirent *ent = dents + dentoffs; |
|
|
1041 | |
|
|
1042 | while (ent > dents) |
|
|
1043 | (--ent)->name = names + (size_t)ent->name; |
|
|
1044 | } |
|
|
1045 | |
|
|
1046 | if (flags & EIO_READDIR_STAT_ORDER |
|
|
1047 | || !(~flags & (EIO_READDIR_DIRS_FIRST | EIO_READDIR_FOUND_UNKNOWN))) |
|
|
1048 | { |
|
|
1049 | /* pray your qsort doesn't use quicksort */ |
|
|
1050 | qsort (dents, dentoffs, sizeof (*dents), eio_dent_cmp); /* score depends of DIRS_FIRST */ |
|
|
1051 | } |
|
|
1052 | else if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1053 | { |
|
|
1054 | /* in this case, all is known, and we just put dirs first and sort them */ |
|
|
1055 | eio_dirent *ent = dents + dentoffs; |
|
|
1056 | eio_dirent *dir = dents; |
|
|
1057 | |
|
|
1058 | while (ent > dir) |
|
|
1059 | { |
|
|
1060 | if (dir->type == DT_DIR) |
|
|
1061 | ++dir; |
|
|
1062 | else |
|
|
1063 | { |
|
|
1064 | --ent; |
|
|
1065 | |
|
|
1066 | if (ent->type == DT_DIR) |
|
|
1067 | { |
|
|
1068 | eio_dirent tmp = *dir; |
|
|
1069 | *dir = *ent; |
|
|
1070 | *ent = tmp; |
|
|
1071 | |
|
|
1072 | ++dir; |
|
|
1073 | } |
|
|
1074 | } |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | /* now sort the dirs only */ |
|
|
1078 | qsort (dents, dir - dents, sizeof (*dents), eio_dent_cmp); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | /* only provide the names array unless DENTS is specified */ |
|
|
1082 | if (!(flags & EIO_READDIR_DENTS)) |
|
|
1083 | { |
|
|
1084 | X_LOCK (wrklock); |
|
|
1085 | assert (!dents); |
|
|
1086 | req->ptr1 = 0; |
|
|
1087 | req->ptr2 = names; |
|
|
1088 | X_UNLOCK (wrklock); |
|
|
1089 | } |
|
|
1090 | |
957 | break; |
1091 | break; |
|
|
1092 | } |
958 | |
1093 | |
|
|
1094 | /* now add the entry to our list(s) */ |
959 | name = entp->d_name; |
1095 | name = entp->d_name; |
960 | |
1096 | |
|
|
1097 | /* skip . and .. entries */ |
961 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1098 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
962 | { |
1099 | { |
963 | int len = strlen (name) + 1; |
1100 | int len = strlen (name) + 1; |
964 | |
1101 | |
965 | res++; |
1102 | while (expect_false (namesoffs + len > namesalloc)) |
966 | |
|
|
967 | while (memofs + len > memlen) |
|
|
968 | { |
1103 | { |
969 | memlen *= 2; |
1104 | namesalloc *= 2; |
970 | X_LOCK (wrklock); |
1105 | X_LOCK (wrklock); |
971 | req->ptr2 = names = realloc (names, memlen); |
1106 | req->ptr1 = names = realloc (names, namesalloc); |
972 | X_UNLOCK (wrklock); |
1107 | X_UNLOCK (wrklock); |
973 | |
1108 | |
974 | if (!names) |
1109 | if (!names) |
975 | break; |
1110 | break; |
976 | } |
1111 | } |
977 | |
1112 | |
978 | memcpy (names + memofs, name, len); |
1113 | memcpy (names + namesoffs, name, len); |
|
|
1114 | |
|
|
1115 | if (dents) |
|
|
1116 | { |
|
|
1117 | struct eio_dirent *ent; |
|
|
1118 | |
|
|
1119 | if (expect_false (dentoffs == dentalloc)) |
|
|
1120 | { |
|
|
1121 | dentalloc *= 2; |
|
|
1122 | X_LOCK (wrklock); |
|
|
1123 | req->ptr2 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1124 | X_UNLOCK (wrklock); |
|
|
1125 | |
|
|
1126 | if (!dents) |
|
|
1127 | break; |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | ent = dents + dentoffs; |
|
|
1131 | |
|
|
1132 | ent->name = (char *)(size_t)namesoffs; /* rather dirtily we store the offset in the pointer */ |
|
|
1133 | ent->namelen = len - 1; |
|
|
1134 | ent->inode = D_INO (entp); |
|
|
1135 | |
|
|
1136 | switch (D_TYPE (entp)) |
|
|
1137 | { |
|
|
1138 | default: |
|
|
1139 | ent->type = EIO_DT_UNKNOWN; |
|
|
1140 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1141 | break; |
|
|
1142 | |
|
|
1143 | #ifdef DT_FIFO |
|
|
1144 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1145 | #endif |
|
|
1146 | #ifdef DT_CHR |
|
|
1147 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1148 | #endif |
|
|
1149 | #ifdef DT_DIR |
|
|
1150 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1151 | #endif |
|
|
1152 | #ifdef DT_BLK |
|
|
1153 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1154 | #endif |
|
|
1155 | #ifdef DT_REG |
|
|
1156 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1157 | #endif |
|
|
1158 | #ifdef DT_LNK |
|
|
1159 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1160 | #endif |
|
|
1161 | #ifdef DT_SOCK |
|
|
1162 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1163 | #endif |
|
|
1164 | #ifdef DT_WHT |
|
|
1165 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1166 | #endif |
|
|
1167 | } |
|
|
1168 | |
|
|
1169 | ent->score = 0; |
|
|
1170 | |
|
|
1171 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1172 | { |
|
|
1173 | if (ent->type == EIO_DT_UNKNOWN) |
|
|
1174 | { |
|
|
1175 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
|
|
1176 | ent->score = 98; |
|
|
1177 | else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */ |
|
|
1178 | ent->score = len <= 4 ? 5 : len <= 7 ? 4 : 1; /* shorter == more likely dir, but avoid too many classes */ |
|
|
1179 | } |
|
|
1180 | else if (ent->type == DT_DIR) |
|
|
1181 | ent->score = 100; |
|
|
1182 | } |
|
|
1183 | } |
|
|
1184 | |
979 | memofs += len; |
1185 | namesoffs += len; |
|
|
1186 | ++dentoffs; |
980 | } |
1187 | } |
981 | } |
1188 | } |
982 | |
1189 | else |
983 | if (errno) |
|
|
984 | res = -1; |
|
|
985 | |
|
|
986 | req->result = res; |
1190 | req->result = -1; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1194 | # undef msync |
|
|
1195 | # define msync(a,b,c) ((errno = ENOSYS), -1) |
|
|
1196 | #endif |
|
|
1197 | |
|
|
1198 | int |
|
|
1199 | eio__mtouch (void *mem, size_t len, int flags) |
|
|
1200 | { |
|
|
1201 | intptr_t addr = (intptr_t)mem; |
|
|
1202 | intptr_t end = addr + len; |
|
|
1203 | #ifdef PAGESIZE |
|
|
1204 | const intptr_t page = PAGESIZE; |
|
|
1205 | #else |
|
|
1206 | static intptr_t page; |
|
|
1207 | |
|
|
1208 | if (!page) |
|
|
1209 | page = sysconf (_SC_PAGESIZE); |
|
|
1210 | #endif |
|
|
1211 | |
|
|
1212 | addr &= ~(page - 1); /* assume page size is always a power of two */ |
|
|
1213 | |
|
|
1214 | if (addr < end) |
|
|
1215 | if (flags) /* modify */ |
|
|
1216 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
|
|
1217 | else |
|
|
1218 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
|
|
1219 | |
|
|
1220 | return 0; |
987 | } |
1221 | } |
988 | |
1222 | |
989 | /*****************************************************************************/ |
1223 | /*****************************************************************************/ |
990 | |
1224 | |
991 | #define ALLOC(len) \ |
1225 | #define ALLOC(len) \ |
… | |
… | |
1047 | |
1281 | |
1048 | --nready; |
1282 | --nready; |
1049 | |
1283 | |
1050 | X_UNLOCK (reqlock); |
1284 | X_UNLOCK (reqlock); |
1051 | |
1285 | |
1052 | errno = 0; /* strictly unnecessary */ |
1286 | if (req->type < 0) |
|
|
1287 | goto quit; |
1053 | |
1288 | |
1054 | if (!EIO_CANCELLED (req)) |
1289 | if (!EIO_CANCELLED (req)) |
1055 | switch (req->type) |
1290 | ETP_EXECUTE (self, req); |
1056 | { |
|
|
1057 | case EIO_READ: ALLOC (req->size); |
|
|
1058 | req->result = req->offs >= 0 |
|
|
1059 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
|
|
1060 | : read (req->int1, req->ptr2, req->size); break; |
|
|
1061 | case EIO_WRITE: req->result = req->offs >= 0 |
|
|
1062 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
|
|
1063 | : write (req->int1, req->ptr2, req->size); break; |
|
|
1064 | |
|
|
1065 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1066 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1067 | |
|
|
1068 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1069 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1070 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1071 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1072 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1073 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1074 | |
|
|
1075 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1076 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1077 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1078 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
1079 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1080 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1081 | |
|
|
1082 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1083 | case EIO_CLOSE: req->result = close (req->int1); break; |
|
|
1084 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
1085 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1086 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1087 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
1088 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
1089 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
1090 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
1091 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
1092 | |
|
|
1093 | case EIO_READLINK: ALLOC (NAME_MAX); |
|
|
1094 | req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; |
|
|
1095 | |
|
|
1096 | case EIO_SYNC: req->result = 0; sync (); break; |
|
|
1097 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
1098 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1099 | |
|
|
1100 | case EIO_READDIR: eio__scandir (req, self); break; |
|
|
1101 | |
|
|
1102 | case EIO_BUSY: |
|
|
1103 | #ifdef _WIN32 |
|
|
1104 | Sleep (req->nv1 * 1000.); |
|
|
1105 | #else |
|
|
1106 | { |
|
|
1107 | struct timeval tv; |
|
|
1108 | |
|
|
1109 | tv.tv_sec = req->nv1; |
|
|
1110 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1111 | |
|
|
1112 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1113 | } |
|
|
1114 | #endif |
|
|
1115 | break; |
|
|
1116 | |
|
|
1117 | case EIO_UTIME: |
|
|
1118 | case EIO_FUTIME: |
|
|
1119 | { |
|
|
1120 | struct timeval tv[2]; |
|
|
1121 | struct timeval *times; |
|
|
1122 | |
|
|
1123 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1124 | { |
|
|
1125 | tv[0].tv_sec = req->nv1; |
|
|
1126 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1127 | tv[1].tv_sec = req->nv2; |
|
|
1128 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1129 | |
|
|
1130 | times = tv; |
|
|
1131 | } |
|
|
1132 | else |
|
|
1133 | times = 0; |
|
|
1134 | |
|
|
1135 | |
|
|
1136 | req->result = req->type == EIO_FUTIME |
|
|
1137 | ? futimes (req->int1, times) |
|
|
1138 | : utimes (req->ptr1, times); |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | case EIO_GROUP: |
|
|
1142 | case EIO_NOP: |
|
|
1143 | req->result = 0; |
|
|
1144 | break; |
|
|
1145 | |
|
|
1146 | case -1: |
|
|
1147 | goto quit; |
|
|
1148 | |
|
|
1149 | default: |
|
|
1150 | req->result = -1; |
|
|
1151 | break; |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | req->errorno = errno; |
|
|
1155 | |
1291 | |
1156 | X_LOCK (reslock); |
1292 | X_LOCK (reslock); |
1157 | |
1293 | |
1158 | ++npending; |
1294 | ++npending; |
1159 | |
1295 | |
… | |
… | |
1176 | |
1312 | |
1177 | /*****************************************************************************/ |
1313 | /*****************************************************************************/ |
1178 | |
1314 | |
1179 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1315 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1180 | { |
1316 | { |
1181 | etp_init (want_poll, done_poll); |
1317 | return etp_init (want_poll, done_poll); |
1182 | } |
1318 | } |
1183 | |
1319 | |
1184 | static void eio_api_destroy (eio_req *req) |
1320 | static void eio_api_destroy (eio_req *req) |
1185 | { |
1321 | { |
1186 | free (req); |
1322 | free (req); |
… | |
… | |
1208 | { \ |
1344 | { \ |
1209 | eio_api_destroy (req); \ |
1345 | eio_api_destroy (req); \ |
1210 | return 0; \ |
1346 | return 0; \ |
1211 | } |
1347 | } |
1212 | |
1348 | |
|
|
1349 | static void eio_execute (etp_worker *self, eio_req *req) |
|
|
1350 | { |
|
|
1351 | errno = 0; |
|
|
1352 | |
|
|
1353 | switch (req->type) |
|
|
1354 | { |
|
|
1355 | case EIO_READ: ALLOC (req->size); |
|
|
1356 | req->result = req->offs >= 0 |
|
|
1357 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
|
|
1358 | : read (req->int1, req->ptr2, req->size); break; |
|
|
1359 | case EIO_WRITE: req->result = req->offs >= 0 |
|
|
1360 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
|
|
1361 | : write (req->int1, req->ptr2, req->size); break; |
|
|
1362 | |
|
|
1363 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1364 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1365 | |
|
|
1366 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1367 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1368 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1369 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1370 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1371 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1372 | |
|
|
1373 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1374 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1375 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1376 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
1377 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1378 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1379 | |
|
|
1380 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1381 | case EIO_CLOSE: req->result = close (req->int1); break; |
|
|
1382 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
1383 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1384 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1385 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
1386 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
1387 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
1388 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
1389 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->int3); break; |
|
|
1390 | |
|
|
1391 | case EIO_READLINK: ALLOC (NAME_MAX); |
|
|
1392 | req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; |
|
|
1393 | |
|
|
1394 | case EIO_SYNC: req->result = 0; sync (); break; |
|
|
1395 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
1396 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1397 | case EIO_MSYNC: req->result = msync (req->ptr2, req->size, req->int1); break; |
|
|
1398 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
|
|
1399 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
|
|
1400 | |
|
|
1401 | case EIO_READDIR: eio__scandir (req, self); break; |
|
|
1402 | |
|
|
1403 | case EIO_BUSY: |
|
|
1404 | #ifdef _WIN32 |
|
|
1405 | Sleep (req->nv1 * 1000.); |
|
|
1406 | #else |
|
|
1407 | { |
|
|
1408 | struct timeval tv; |
|
|
1409 | |
|
|
1410 | tv.tv_sec = req->nv1; |
|
|
1411 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1412 | |
|
|
1413 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1414 | } |
|
|
1415 | #endif |
|
|
1416 | break; |
|
|
1417 | |
|
|
1418 | case EIO_UTIME: |
|
|
1419 | case EIO_FUTIME: |
|
|
1420 | { |
|
|
1421 | struct timeval tv[2]; |
|
|
1422 | struct timeval *times; |
|
|
1423 | |
|
|
1424 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1425 | { |
|
|
1426 | tv[0].tv_sec = req->nv1; |
|
|
1427 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1428 | tv[1].tv_sec = req->nv2; |
|
|
1429 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1430 | |
|
|
1431 | times = tv; |
|
|
1432 | } |
|
|
1433 | else |
|
|
1434 | times = 0; |
|
|
1435 | |
|
|
1436 | |
|
|
1437 | req->result = req->type == EIO_FUTIME |
|
|
1438 | ? futimes (req->int1, times) |
|
|
1439 | : utimes (req->ptr1, times); |
|
|
1440 | } |
|
|
1441 | break; |
|
|
1442 | |
|
|
1443 | case EIO_GROUP: |
|
|
1444 | abort (); /* handled in eio_request */ |
|
|
1445 | |
|
|
1446 | case EIO_NOP: |
|
|
1447 | req->result = 0; |
|
|
1448 | break; |
|
|
1449 | |
|
|
1450 | case EIO_CUSTOM: |
|
|
1451 | ((void (*)(eio_req *))req->feed) (req); |
|
|
1452 | break; |
|
|
1453 | |
|
|
1454 | default: |
|
|
1455 | req->result = -1; |
|
|
1456 | break; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | req->errorno = errno; |
|
|
1460 | } |
|
|
1461 | |
1213 | #ifndef EIO_NO_WRAPPERS |
1462 | #ifndef EIO_NO_WRAPPERS |
1214 | |
1463 | |
1215 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
1464 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
1216 | { |
1465 | { |
1217 | REQ (EIO_NOP); SEND; |
1466 | REQ (EIO_NOP); SEND; |
… | |
… | |
1228 | } |
1477 | } |
1229 | |
1478 | |
1230 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data) |
1479 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data) |
1231 | { |
1480 | { |
1232 | REQ (EIO_FSYNC); req->int1 = fd; SEND; |
1481 | REQ (EIO_FSYNC); req->int1 = fd; SEND; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
|
|
1485 | { |
|
|
1486 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
|
|
1490 | { |
|
|
1491 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
1495 | { |
|
|
1496 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
1233 | } |
1497 | } |
1234 | |
1498 | |
1235 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
1499 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
1236 | { |
1500 | { |
1237 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
1501 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
… | |
… | |
1351 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
1615 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
1352 | { |
1616 | { |
1353 | return eio__1path (EIO_RMDIR, path, pri, cb, data); |
1617 | return eio__1path (EIO_RMDIR, path, pri, cb, data); |
1354 | } |
1618 | } |
1355 | |
1619 | |
1356 | eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data) |
1620 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data) |
1357 | { |
1621 | { |
1358 | return eio__1path (EIO_READDIR, path, pri, cb, data); |
1622 | REQ (EIO_READDIR); PATH; req->int1 = flags; SEND; |
1359 | } |
1623 | } |
1360 | |
1624 | |
1361 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
1625 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
1362 | { |
1626 | { |
1363 | REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND; |
1627 | REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int3 = (long)dev; SEND; |
1364 | } |
1628 | } |
1365 | |
1629 | |
1366 | static eio_req * |
1630 | static eio_req * |
1367 | eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1631 | eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1368 | { |
1632 | { |
… | |
… | |
1392 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1656 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1393 | { |
1657 | { |
1394 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
1658 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
1395 | } |
1659 | } |
1396 | |
1660 | |
|
|
1661 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) |
|
|
1662 | { |
|
|
1663 | REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND; |
|
|
1664 | } |
|
|
1665 | |
1397 | #endif |
1666 | #endif |
1398 | |
1667 | |
1399 | eio_req *eio_grp (eio_cb cb, void *data) |
1668 | eio_req *eio_grp (eio_cb cb, void *data) |
1400 | { |
1669 | { |
1401 | const int pri = EIO_PRI_MAX; |
1670 | const int pri = EIO_PRI_MAX; |
… | |
… | |
1427 | |
1696 | |
1428 | void eio_grp_add (eio_req *grp, eio_req *req) |
1697 | void eio_grp_add (eio_req *grp, eio_req *req) |
1429 | { |
1698 | { |
1430 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
1699 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
1431 | |
1700 | |
|
|
1701 | grp->flags |= EIO_FLAG_GROUPADD; |
|
|
1702 | |
1432 | ++grp->size; |
1703 | ++grp->size; |
1433 | req->grp = grp; |
1704 | req->grp = grp; |
1434 | |
1705 | |
1435 | req->grp_prev = 0; |
1706 | req->grp_prev = 0; |
1436 | req->grp_next = grp->grp_first; |
1707 | req->grp_next = grp->grp_first; |