1 # SOME DESCRIPTIVE TITLE
2 # Copyright (C) YEAR Free Software Foundation, Inc.
3 # This file is distributed under the same license as the PACKAGE package.
4 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
9 "Project-Id-Version: PACKAGE VERSION\n"
10 "POT-Creation-Date: 2012-05-01 04:37+0900\n"
11 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
12 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
13 "Language-Team: LANGUAGE <LL@li.org>\n"
16 "Content-Type: text/plain; charset=CHARSET\n"
17 "Content-Transfer-Encoding: 8bit\n"
20 #: build/C/man7/aio.7:24
26 #: build/C/man7/aio.7:24 build/C/man3/aio_fsync.3:23 build/C/man3/aio_suspend.3:24 build/C/man3/aio_write.3:23
32 #: build/C/man7/aio.7:24 build/C/man3/aio_init.3:24 build/C/man2/io_cancel.2:23 build/C/man2/io_destroy.2:23 build/C/man2/io_getevents.2:23 build/C/man2/io_setup.2:23 build/C/man2/io_submit.2:23
38 #: build/C/man7/aio.7:24 build/C/man3/aio_cancel.3:23 build/C/man3/aio_error.3:23 build/C/man3/aio_fsync.3:23 build/C/man3/aio_init.3:24 build/C/man3/aio_read.3:23 build/C/man3/aio_return.3:23 build/C/man3/aio_suspend.3:24 build/C/man3/aio_write.3:23 build/C/man2/io_cancel.2:23 build/C/man2/io_destroy.2:23 build/C/man2/io_getevents.2:23 build/C/man2/io_setup.2:23 build/C/man2/io_submit.2:23 build/C/man3/lio_listio.3:23
40 msgid "Linux Programmer's Manual"
44 #: build/C/man7/aio.7:25 build/C/man3/aio_cancel.3:24 build/C/man3/aio_error.3:24 build/C/man3/aio_fsync.3:24 build/C/man3/aio_init.3:25 build/C/man3/aio_read.3:24 build/C/man3/aio_return.3:24 build/C/man3/aio_suspend.3:25 build/C/man3/aio_write.3:24 build/C/man2/io_cancel.2:24 build/C/man2/io_destroy.2:24 build/C/man2/io_getevents.2:24 build/C/man2/io_setup.2:24 build/C/man2/io_submit.2:24 build/C/man3/lio_listio.3:24
50 #: build/C/man7/aio.7:27
51 msgid "aio - POSIX asynchronous I/O overview"
55 #: build/C/man7/aio.7:27 build/C/man3/aio_cancel.3:32 build/C/man3/aio_error.3:32 build/C/man3/aio_fsync.3:32 build/C/man3/aio_init.3:36 build/C/man3/aio_read.3:32 build/C/man3/aio_return.3:32 build/C/man3/aio_suspend.3:38 build/C/man3/aio_write.3:32 build/C/man2/io_cancel.2:42 build/C/man2/io_destroy.2:40 build/C/man2/io_getevents.2:43 build/C/man2/io_setup.2:40 build/C/man2/io_submit.2:41 build/C/man3/lio_listio.3:35
61 #: build/C/man7/aio.7:35
63 "The POSIX asynchronous I/O (AIO) interface allows applications to initiate "
64 "one or more I/O operations that are performed asynchronously (i.e., in the "
65 "background). The application can elect to be notified of completion of the "
66 "I/O operation in a variety of ways: by delivery of a signal, by "
67 "instantiation of a thread, or no notification at all."
71 #: build/C/man7/aio.7:37
72 msgid "The POSIX AIO interface consists of the following functions:"
76 #: build/C/man7/aio.7:37
78 msgid "B<aio_read>(3)"
82 #: build/C/man7/aio.7:42
83 msgid "Enqueue a read request. This is the asynchronous analog of B<read>(2)."
87 #: build/C/man7/aio.7:42
89 msgid "B<aio_write>(3)"
93 #: build/C/man7/aio.7:47
94 msgid "Enqueue a write request. This is the asynchronous analog of B<write>(2)."
98 #: build/C/man7/aio.7:47
100 msgid "B<aio_fsync>(3)"
104 #: build/C/man7/aio.7:54
106 "Enqueue a sync request for the I/O operations on a file descriptor. This is "
107 "the asynchronous analog of B<fsync>(2) and B<fdatasync>(2)."
111 #: build/C/man7/aio.7:54
113 msgid "B<aio_error>(3)"
117 #: build/C/man7/aio.7:57
118 msgid "Obtain the error status of an enqueued I/O request."
122 #: build/C/man7/aio.7:57
124 msgid "B<aio_return>(3)"
128 #: build/C/man7/aio.7:60
129 msgid "Obtain the return status of a completed I/O request."
133 #: build/C/man7/aio.7:60
135 msgid "B<aio_suspend>(3)"
139 #: build/C/man7/aio.7:64
141 "Suspend the caller until one or more of a specified set of I/O requests "
146 #: build/C/man7/aio.7:64
148 msgid "B<aio_cancel>(3)"
152 #: build/C/man7/aio.7:68
153 msgid "Attempt to cancel outstanding I/O requests on a specified file descriptor."
157 #: build/C/man7/aio.7:68
159 msgid "B<lio_listio>(3)"
163 #: build/C/man7/aio.7:71
164 msgid "Enqueue multiple I/O requests using a single function call."
168 #: build/C/man7/aio.7:78
170 "The I<aiocb> (\"asynchronous I/O control block\") structure defines "
171 "parameters that control an I/O operation. An argument of this type is "
172 "employed with all of the functions listed above. This structure has the "
177 #: build/C/man7/aio.7:82
179 msgid "#include E<lt>aiocb.hE<gt>\n"
183 #: build/C/man7/aio.7:85
187 " /* The order of these fields is implementation-dependent */\n"
191 #: build/C/man7/aio.7:94
194 " int aio_fildes; /* File descriptor */\n"
195 " off_t aio_offset; /* File offset */\n"
196 " volatile void *aio_buf; /* Location of buffer */\n"
197 " size_t aio_nbytes; /* Length of transfer */\n"
198 " int aio_reqprio; /* Request priority */\n"
199 " struct sigevent aio_sigevent; /* Notification method */\n"
200 " int aio_lio_opcode; /* Operation to be performed;\n"
201 " lio_listio() only */\n"
205 #: build/C/man7/aio.7:97
208 " /* Various implementation-internal fields not shown */\n"
213 #: build/C/man7/aio.7:99
215 msgid "/* Operation codes for \\(aqaio_lio_opcode\\(aq: */\n"
219 #: build/C/man7/aio.7:101
221 msgid "enum { LIO_READ, LIO_WRITE, LIO_NOP };\n"
225 #: build/C/man7/aio.7:105
226 msgid "The fields of this structure are as follows:"
230 #: build/C/man7/aio.7:105
232 msgid "I<aio_filedes>"
236 #: build/C/man7/aio.7:108
237 msgid "The file descriptor on which the I/O operation is to be performed."
241 #: build/C/man7/aio.7:108
243 msgid "I<aio_offset>"
247 #: build/C/man7/aio.7:111
248 msgid "This is the file offset at which the I/O operation is to be performed."
252 #: build/C/man7/aio.7:111
258 #: build/C/man7/aio.7:114
259 msgid "This is the buffer used to transfer data for a read or write operation."
263 #: build/C/man7/aio.7:114
265 msgid "I<aio_nbytes>"
269 #: build/C/man7/aio.7:118
270 msgid "This is the size of the buffer pointed to by I<aio_buf>."
274 #: build/C/man7/aio.7:118
276 msgid "I<aio_reqprio>"
280 #: build/C/man7/aio.7:127
282 "This field specifies a value that is subtracted from the calling thread's "
283 "real-time priority in order to determine the priority for execution of this "
284 "I/O request (see B<pthread_setschedparam>(3)). The specified value must be "
285 "between 0 and the value returned by I<sysconf(_SC_AIO_PRIO_DELTA_MAX)>. "
286 "This field is ignored for file synchronization operations."
290 #: build/C/man7/aio.7:127
292 msgid "I<aio_sigevent>"
296 #: build/C/man7/aio.7:141
298 "This field is a structure that specifies how the caller is to be notified "
299 "when the asynchronous I/O operation completes. Possible values for "
300 "I<aio_sigevent.sigev_notify> are B<SIGEV_NONE>, B<SIGEV_SIGNAL>, and "
301 "B<SIGEV_THREAD>. See B<sigevent>(7) for further details."
305 #: build/C/man7/aio.7:141
307 msgid "I<aio_lio_opcode>"
311 #: build/C/man7/aio.7:145
312 msgid "The type of operation to be performed; used only for B<lio_listio>(3)."
316 #: build/C/man7/aio.7:148
318 "In addition to the standard functions listed above, the GNU C library "
319 "provides the following extension to the POSIX AIO API:"
323 #: build/C/man7/aio.7:148
325 msgid "B<aio_init>(3)"
329 #: build/C/man7/aio.7:151
331 "Set parameters for tuning the behavior of the glibc POSIX AIO "
336 #: build/C/man7/aio.7:151 build/C/man3/aio_read.3:132 build/C/man3/aio_suspend.3:104 build/C/man3/aio_write.3:137 build/C/man2/io_cancel.2:78 build/C/man2/io_destroy.2:72 build/C/man2/io_getevents.2:85 build/C/man2/io_setup.2:81 build/C/man2/io_submit.2:83 build/C/man3/lio_listio.3:206
342 #: build/C/man7/aio.7:158
344 "It is a good idea to zero out the control block buffer before use (see "
345 "B<memset>(3)). The control block buffer and the buffer pointed to by "
346 "I<aio_buf> must not be changed while the I/O operation is in progress. "
347 "These buffers must remain valid until the I/O operation completes."
351 #: build/C/man7/aio.7:162
353 "Simultaneous asynchronous read or write operations using the same I<aiocb> "
354 "structure yield undefined results."
357 #. http://lse.sourceforge.net/io/aio.html
358 #. http://lse.sourceforge.net/io/aionotes.txt
359 #. http://lwn.net/Articles/148755/
361 #: build/C/man7/aio.7:180
363 "The current Linux POSIX AIO implementation is provided in userspace by "
364 "glibc. This has a number of limitations, most notably that maintaining "
365 "multiple threads to perform I/O operations is expensive and scales poorly. "
366 "Work has been in progress for some time on a kernel state-machine-based "
367 "implementation of asynchronous I/O (see B<io_submit>(2), B<io_setup>(2), "
368 "B<io_cancel>(2), B<io_destroy>(2), B<io_getevents>(2)), but this "
369 "implementation hasn't yet matured to the point where the POSIX AIO "
370 "implementation can be completely reimplemented using the kernel system "
375 #: build/C/man7/aio.7:180 build/C/man3/aio_cancel.3:90 build/C/man3/aio_error.3:65 build/C/man3/aio_fsync.3:78 build/C/man3/aio_read.3:102 build/C/man3/aio_return.3:62 build/C/man3/aio_suspend.3:87 build/C/man3/aio_write.3:109 build/C/man2/io_cancel.2:56 build/C/man2/io_destroy.2:53 build/C/man2/io_getevents.2:60 build/C/man2/io_setup.2:54 build/C/man2/io_submit.2:54 build/C/man3/lio_listio.3:145
381 #: build/C/man7/aio.7:181 build/C/man3/aio_error.3:66 build/C/man3/aio_fsync.3:86 build/C/man3/aio_read.3:110 build/C/man3/aio_return.3:63 build/C/man3/aio_write.3:121 build/C/man2/io_cancel.2:63 build/C/man2/io_destroy.2:57 build/C/man2/io_getevents.2:64 build/C/man2/io_setup.2:61 build/C/man2/io_submit.2:64 build/C/man3/lio_listio.3:160
387 #: build/C/man7/aio.7:190
389 "The I<aio_reqprio> field of the I<aiocb> structure was less than 0, or was "
390 "greater than the limit returned by the call "
391 "I<sysconf(_SC_AIO_PRIO_DELTA_MAX)>."
395 #: build/C/man7/aio.7:190 build/C/man3/aio_cancel.3:95 build/C/man3/aio_error.3:73 build/C/man3/aio_fsync.3:94 build/C/man3/aio_init.3:91 build/C/man3/aio_read.3:126 build/C/man3/aio_return.3:68 build/C/man3/aio_suspend.3:98 build/C/man3/aio_write.3:131 build/C/man2/io_cancel.2:70 build/C/man2/io_destroy.2:64 build/C/man2/io_getevents.2:77 build/C/man2/io_setup.2:73 build/C/man2/io_submit.2:75 build/C/man3/lio_listio.3:200
401 #: build/C/man7/aio.7:192
402 msgid "The POSIX AIO interfaces are provided by glibc since version 2.1."
406 #: build/C/man7/aio.7:192 build/C/man3/aio_cancel.3:99 build/C/man3/aio_error.3:77 build/C/man3/aio_fsync.3:98 build/C/man3/aio_init.3:95 build/C/man3/aio_read.3:130 build/C/man3/aio_return.3:72 build/C/man3/aio_suspend.3:102 build/C/man3/aio_write.3:135 build/C/man2/io_cancel.2:73 build/C/man2/io_destroy.2:67 build/C/man2/io_getevents.2:80 build/C/man2/io_setup.2:76 build/C/man2/io_submit.2:78 build/C/man3/lio_listio.3:204
408 msgid "CONFORMING TO"
412 #: build/C/man7/aio.7:194 build/C/man3/aio_cancel.3:101 build/C/man3/aio_error.3:79 build/C/man3/aio_fsync.3:100 build/C/man3/aio_read.3:132 build/C/man3/aio_return.3:74 build/C/man3/aio_suspend.3:104 build/C/man3/aio_write.3:137 build/C/man3/lio_listio.3:206
413 msgid "POSIX.1-2001, POSIX.1-2008."
417 #: build/C/man7/aio.7:194 build/C/man3/aio_cancel.3:101 build/C/man3/aio_error.3:79 build/C/man3/aio_read.3:144 build/C/man3/aio_return.3:74
423 #: build/C/man7/aio.7:207
425 "The program below opens each of the files named in its command-line "
426 "arguments and queues a request on the resulting file descriptor using "
427 "B<aio_read>(3). The program then loops, periodically monitoring each of the "
428 "I/O operations that is still in progress using B<aio_error>(3). Each of the "
429 "I/O requests is set up to provide notification by delivery of a signal. "
430 "After all I/O requests have completed, the program retrieves their status "
431 "using B<aio_return>(3)."
435 #: build/C/man7/aio.7:213
437 "The B<SIGQUIT> signal (generated by typing control-\\e) causes the program "
438 "to request cancellation of each of the outstanding requests using "
443 #: build/C/man7/aio.7:218
445 "Here is an example of what we might see when running this program. In this "
446 "example, the program queues two requests to standard input, and these are "
447 "satisfied by two lines of input containing \"abc\" and \"x\"."
451 #: build/C/man7/aio.7:242
454 "$ B<./a.out /dev/stdin /dev/stdin>\n"
455 "opened /dev/stdin on descriptor 3\n"
456 "opened /dev/stdin on descriptor 4\n"
458 " for request 0 (descriptor 3): In progress\n"
459 " for request 1 (descriptor 4): In progress\n"
461 "I/O completion signal received\n"
463 " for request 0 (descriptor 3): I/O succeeded\n"
464 " for request 1 (descriptor 4): In progress\n"
466 " for request 1 (descriptor 4): In progress\n"
468 "I/O completion signal received\n"
470 " for request 1 (descriptor 4): I/O succeeded\n"
471 "All I/O requests completed\n"
473 " for request 0 (descriptor 3): 4\n"
474 " for request 1 (descriptor 4): 2\n"
478 #: build/C/man7/aio.7:244
480 msgid "Program source"
484 #: build/C/man7/aio.7:253
487 "#include E<lt>stdlib.hE<gt>\n"
488 "#include E<lt>unistd.hE<gt>\n"
489 "#include E<lt>stdio.hE<gt>\n"
490 "#include E<lt>errno.hE<gt>\n"
491 "#include E<lt>aio.hE<gt>\n"
492 "#include E<lt>signal.hE<gt>\n"
496 #: build/C/man7/aio.7:255
498 msgid "#define BUF_SIZE 20 /* Size of buffers for read operations */\n"
502 #: build/C/man7/aio.7:257
504 msgid "#define errExit(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)\n"
508 #: build/C/man7/aio.7:259
510 msgid "#define errMsg(msg) do { perror(msg); } while (0)\n"
514 #: build/C/man7/aio.7:266
517 "struct ioRequest { /* Application-defined structure for tracking\n"
521 " struct aiocb *aiocbp;\n"
526 #: build/C/man7/aio.7:270
529 "static volatile sig_atomic_t gotSIGQUIT = 0;\n"
530 " /* On delivery of SIGQUIT, we attempt to\n"
531 " cancel all outstanding I/O requests */\n"
535 #: build/C/man7/aio.7:276
538 "static void /* Handler for SIGQUIT */\n"
539 "quitHandler(int sig)\n"
546 #: build/C/man7/aio.7:278
548 msgid "#define IO_SIGNAL SIGUSR1 /* Signal used to notify I/O completion */\n"
552 #: build/C/man7/aio.7:283
555 "static void /* Handler for I/O completion signal */\n"
556 "aioSigHandler(int sig, siginfo_t *si, void *ucontext)\n"
558 " write(STDOUT_FILENO, \"I/O completion signal received\\en\", 31);\n"
562 #: build/C/man7/aio.7:289
565 " /* The corresponding ioRequest structure would be available as\n"
566 " struct ioRequest *ioReq = si-E<gt>si_value.sival_ptr;\n"
567 " and the file descriptor would then be available via\n"
568 " ioReq-E<gt>aiocbp-E<gt>aio_fildes */\n"
573 #: build/C/man7/aio.7:299
577 "main(int argc, char *argv[])\n"
579 " struct ioRequest *ioList;\n"
580 " struct aiocb *aiocbList;\n"
581 " struct sigaction sa;\n"
583 " int numReqs; /* Total number of queued I/O requests */\n"
584 " int openReqs; /* Number of I/O requests still in progress */\n"
588 #: build/C/man7/aio.7:305
591 " if (argc E<lt> 2) {\n"
592 " fprintf(stderr, \"Usage: %s E<lt>pathnameE<gt> "
593 "E<lt>pathnameE<gt>...\\en\",\n"
595 " exit(EXIT_FAILURE);\n"
600 #: build/C/man7/aio.7:307
602 msgid " numReqs = argc - 1;\n"
606 #: build/C/man7/aio.7:309
608 msgid " /* Allocate our arrays */\n"
612 #: build/C/man7/aio.7:313
615 " ioList = calloc(numReqs, sizeof(struct ioRequest));\n"
616 " if (ioList == NULL)\n"
617 " errExit(\"calloc\");\n"
621 #: build/C/man7/aio.7:317
624 " aiocbList = calloc(numReqs, sizeof(struct aiocb));\n"
625 " if (aiocbList == NULL)\n"
626 " errExit(\"calloc\");\n"
630 #: build/C/man7/aio.7:319
632 msgid " /* Establish handlers for SIGQUIT and the I/O completion signal */\n"
636 #: build/C/man7/aio.7:322
639 " sa.sa_flags = SA_RESTART;\n"
640 " sigemptyset(&sa.sa_mask);\n"
644 #: build/C/man7/aio.7:326
647 " sa.sa_handler = quitHandler;\n"
648 " if (sigaction(SIGQUIT, &sa, NULL) == -1)\n"
649 " errExit(\"sigaction\");\n"
653 #: build/C/man7/aio.7:331
656 " sa.sa_flags = SA_RESTART | SA_SIGINFO;\n"
657 " sa.sa_sigaction = aioSigHandler;\n"
658 " if (sigaction(IO_SIGNAL, &sa, NULL) == -1)\n"
659 " errExit(\"sigaction\");\n"
663 #: build/C/man7/aio.7:334
666 " /* Open each file specified on the command line, and queue\n"
667 " a read request on the resulting file descriptor */\n"
671 #: build/C/man7/aio.7:339
674 " for (j = 0; j E<lt> numReqs; j++) {\n"
675 " ioList[j].reqNum = j;\n"
676 " ioList[j].status = EINPROGRESS;\n"
677 " ioList[j].aiocbp = &aiocbList[j];\n"
681 #: build/C/man7/aio.7:345
684 " ioList[j].aiocbp-E<gt>aio_fildes = open(argv[j + 1], O_RDONLY);\n"
685 " if (ioList[j].aiocbp-E<gt>aio_fildes == -1)\n"
686 " errExit(\"open\");\n"
687 " printf(\"opened %s on descriptor %d\\en\", argv[j + 1],\n"
688 " ioList[j].aiocbp-E<gt>aio_fildes);\n"
692 #: build/C/man7/aio.7:349
695 " ioList[j].aiocbp-E<gt>aio_buf = malloc(BUF_SIZE);\n"
696 " if (ioList[j].aiocbp-E<gt>aio_buf == NULL)\n"
697 " errExit(\"malloc\");\n"
701 #: build/C/man7/aio.7:357
704 " ioList[j].aiocbp-E<gt>aio_nbytes = BUF_SIZE;\n"
705 " ioList[j].aiocbp-E<gt>aio_reqprio = 0;\n"
706 " ioList[j].aiocbp-E<gt>aio_offset = 0;\n"
707 " ioList[j].aiocbp-E<gt>aio_sigevent.sigev_notify = SIGEV_SIGNAL;\n"
708 " ioList[j].aiocbp-E<gt>aio_sigevent.sigev_signo = IO_SIGNAL;\n"
709 " ioList[j].aiocbp-E<gt>aio_sigevent.sigev_value.sival_ptr =\n"
714 #: build/C/man7/aio.7:362
717 " s = aio_read(ioList[j].aiocbp);\n"
719 " errExit(\"aio_read\");\n"
724 #: build/C/man7/aio.7:364
726 msgid " openReqs = numReqs;\n"
730 #: build/C/man7/aio.7:366
732 msgid " /* Loop, monitoring status of I/O requests */\n"
736 #: build/C/man7/aio.7:369
739 " while (openReqs E<gt> 0) {\n"
740 " sleep(3); /* Delay between each monitoring step */\n"
744 #: build/C/man7/aio.7:371
746 msgid " if (gotSIGQUIT) {\n"
750 #: build/C/man7/aio.7:375
753 " /* On receipt of SIGQUIT, attempt to cancel each of the\n"
754 " outstanding I/O requests, and display status returned\n"
755 " from the cancellation requests */\n"
759 #: build/C/man7/aio.7:377
761 msgid " printf(\"got SIGQUIT; canceling I/O requests: \\en\");\n"
765 #: build/C/man7/aio.7:394
768 " for (j = 0; j E<lt> numReqs; j++) {\n"
769 " if (ioList[j].status == EINPROGRESS) {\n"
770 " printf(\" Request %d on descriptor %d:\", j,\n"
771 " ioList[j].aiocbp-E<gt>aio_fildes);\n"
772 " s = aio_cancel(ioList[j].aiocbp-E<gt>aio_fildes,\n"
773 " ioList[j].aiocbp);\n"
774 " if (s == AIO_CANCELED)\n"
775 " printf(\"I/O canceled\\en\");\n"
776 " else if (s == AIO_NOTCANCELED)\n"
777 " printf(\"I/O not canceled\\en\");\n"
778 " else if (s == AIO_ALLDONE)\n"
779 " printf(\"I/O all done\\en\");\n"
781 " errMsg(\"aio_cancel\");\n"
787 #: build/C/man7/aio.7:397
795 #: build/C/man7/aio.7:400
798 " /* Check the status of each I/O request that is still\n"
803 #: build/C/man7/aio.7:407
806 " printf(\"aio_error():\\en\");\n"
807 " for (j = 0; j E<lt> numReqs; j++) {\n"
808 " if (ioList[j].status == EINPROGRESS) {\n"
809 " printf(\" for request %d (descriptor %d): \",\n"
810 " j, ioList[j].aiocbp-E<gt>aio_fildes);\n"
811 " ioList[j].status = aio_error(ioList[j].aiocbp);\n"
815 #: build/C/man7/aio.7:422
818 " switch (ioList[j].status) {\n"
820 " printf(\"I/O succeeded\\en\");\n"
822 " case EINPROGRESS:\n"
823 " printf(\"In progress\\en\");\n"
826 " printf(\"Canceled\\en\");\n"
829 " errMsg(\"aio_error\");\n"
835 #: build/C/man7/aio.7:428
838 " if (ioList[j].status != EINPROGRESS)\n"
846 #: build/C/man7/aio.7:430
848 msgid " printf(\"All I/O requests completed\\en\");\n"
852 #: build/C/man7/aio.7:432
854 msgid " /* Check status return of all I/O requests */\n"
858 #: build/C/man7/aio.7:436
861 " printf(\"aio_return():\\en\");\n"
862 " for (j = 0; j E<lt> numReqs; j++) {\n"
867 #: build/C/man7/aio.7:441
870 " s = aio_return(ioList[j].aiocbp);\n"
871 " printf(\" for request %d (descriptor %d): %ld\\en\",\n"
872 " j, ioList[j].aiocbp-E<gt>aio_fildes, (long) s);\n"
877 #: build/C/man7/aio.7:444
880 " exit(EXIT_SUCCESS);\n"
885 #: build/C/man7/aio.7:445 build/C/man3/aio_cancel.3:104 build/C/man3/aio_error.3:82 build/C/man3/aio_fsync.3:100 build/C/man3/aio_init.3:97 build/C/man3/aio_read.3:147 build/C/man3/aio_return.3:77 build/C/man3/aio_suspend.3:124 build/C/man3/aio_write.3:149 build/C/man2/io_cancel.2:94 build/C/man2/io_destroy.2:88 build/C/man2/io_getevents.2:101 build/C/man2/io_setup.2:97 build/C/man2/io_submit.2:99 build/C/man3/lio_listio.3:218
891 #: build/C/man7/aio.7:460
893 "B<io_cancel>(2), B<io_destroy>(2), B<io_getevents>(2), B<io_setup>(2), "
894 "B<io_submit>(2), B<aio_cancel>(3), B<aio_error>(3), B<aio_init>(3), "
895 "B<aio_read>(3), B<aio_return>(3), B<aio_write>(3), B<lio_listio>(3), "
896 "http://www.squid-cache.org/~adrian/Reprint-Pulavarty-OLS2003.pdf"
900 #: build/C/man7/aio.7:460 build/C/man3/aio_cancel.3:113 build/C/man3/aio_error.3:91 build/C/man3/aio_fsync.3:110 build/C/man3/aio_init.3:99 build/C/man3/aio_read.3:156 build/C/man3/aio_return.3:86 build/C/man3/aio_suspend.3:134 build/C/man3/aio_write.3:158 build/C/man2/io_cancel.2:107 build/C/man2/io_destroy.2:101 build/C/man2/io_getevents.2:116 build/C/man2/io_setup.2:108 build/C/man2/io_submit.2:110 build/C/man3/lio_listio.3:226
906 #: build/C/man7/aio.7:467 build/C/man3/aio_cancel.3:120 build/C/man3/aio_error.3:98 build/C/man3/aio_fsync.3:117 build/C/man3/aio_init.3:106 build/C/man3/aio_read.3:163 build/C/man3/aio_return.3:93 build/C/man3/aio_suspend.3:141 build/C/man3/aio_write.3:165 build/C/man2/io_cancel.2:114 build/C/man2/io_destroy.2:108 build/C/man2/io_getevents.2:123 build/C/man2/io_setup.2:115 build/C/man2/io_submit.2:117 build/C/man3/lio_listio.3:233
908 "This page is part of release 3.40 of the Linux I<man-pages> project. A "
909 "description of the project, and information about reporting bugs, can be "
910 "found at http://www.kernel.org/doc/man-pages/."
914 #: build/C/man3/aio_cancel.3:23
920 #: build/C/man3/aio_cancel.3:23
926 #: build/C/man3/aio_cancel.3:26
927 msgid "aio_cancel - cancel an outstanding asynchronous I/O request"
931 #: build/C/man3/aio_cancel.3:26 build/C/man3/aio_error.3:26 build/C/man3/aio_fsync.3:26 build/C/man3/aio_init.3:27 build/C/man3/aio_read.3:26 build/C/man3/aio_return.3:26 build/C/man3/aio_suspend.3:27 build/C/man3/aio_write.3:26 build/C/man2/io_cancel.2:26 build/C/man2/io_destroy.2:26 build/C/man2/io_getevents.2:26 build/C/man2/io_setup.2:26 build/C/man2/io_submit.2:26 build/C/man3/lio_listio.3:26
937 #: build/C/man3/aio_cancel.3:28 build/C/man3/aio_error.3:28 build/C/man3/aio_fsync.3:28 build/C/man3/aio_read.3:28 build/C/man3/aio_return.3:28 build/C/man3/aio_write.3:28
938 msgid "B<#include E<lt>aio.hE<gt>>"
942 #: build/C/man3/aio_cancel.3:30
943 msgid "B<int aio_cancel(int >I<fd>B<, struct aiocb *>I<aiocbp>B<);>"
947 #: build/C/man3/aio_cancel.3:32 build/C/man3/aio_error.3:32 build/C/man3/aio_fsync.3:32 build/C/man3/aio_init.3:36 build/C/man3/aio_read.3:32 build/C/man3/aio_return.3:32 build/C/man3/aio_write.3:32
948 msgid "Link with I<-lrt>."
952 #: build/C/man3/aio_cancel.3:50
954 "The B<aio_cancel>() function attempts to cancel outstanding asynchronous "
955 "I/O requests for the file descriptor I<fd>. If I<aiocbp> is NULL, all such "
956 "requests are canceled. Otherwise, only the request described by the control "
957 "block pointed to by I<aiocbp> is canceled. (See B<aio>(7) for a "
958 "description of the I<aiocb> structure.)"
962 #: build/C/man3/aio_cancel.3:59
964 "Normal asynchronous notification occurs for canceled requests. The request "
965 "return status (B<aio_return>(3)) is set to -1, and the request error status "
966 "(B<aio_error>(3)) is set to B<ECANCELED>. The control block of requests "
967 "that cannot be canceled is not changed."
971 #: build/C/man3/aio_cancel.3:66
973 "If I<aiocbp> is not NULL, and I<fd> differs from the file descriptor with "
974 "which the asynchronous operation was initiated, unspecified results occur."
977 #. FreeBSD: not those on raw disk devices.
979 #: build/C/man3/aio_cancel.3:69
980 msgid "Which operations are cancelable is implementation-defined."
984 #: build/C/man3/aio_cancel.3:69 build/C/man3/aio_error.3:43 build/C/man3/aio_fsync.3:72 build/C/man3/aio_read.3:87 build/C/man3/aio_return.3:48 build/C/man3/aio_suspend.3:79 build/C/man3/aio_write.3:94 build/C/man2/io_cancel.2:51 build/C/man2/io_destroy.2:48 build/C/man2/io_getevents.2:54 build/C/man2/io_setup.2:49 build/C/man2/io_submit.2:48 build/C/man3/lio_listio.3:107
990 #: build/C/man3/aio_cancel.3:73
991 msgid "The B<aio_cancel>() function returns one of the following values:"
995 #: build/C/man3/aio_cancel.3:73
997 msgid "B<AIO_CANCELED>"
1001 #: build/C/man3/aio_cancel.3:76
1002 msgid "All requests were successfully canceled."
1006 #: build/C/man3/aio_cancel.3:76
1008 msgid "B<AIO_NOTCANCELED>"
1012 #: build/C/man3/aio_cancel.3:82
1014 "At least one of the requests specified was not canceled because it was in "
1015 "progress. In this case, one may check the status of individual requests "
1016 "using B<aio_error>(3)."
1020 #: build/C/man3/aio_cancel.3:82
1022 msgid "B<AIO_ALLDONE>"
1026 #: build/C/man3/aio_cancel.3:85
1027 msgid "All requests had already been completed before the call."
1031 #: build/C/man3/aio_cancel.3:85
1037 #: build/C/man3/aio_cancel.3:90
1039 "An error occurred. The cause of the error can be found by inspecting "
1044 #: build/C/man3/aio_cancel.3:91 build/C/man3/aio_fsync.3:82 build/C/man3/aio_read.3:106 build/C/man3/aio_write.3:113 build/C/man2/io_submit.2:58
1050 #: build/C/man3/aio_cancel.3:95
1051 msgid "I<fd> is not a valid file descriptor."
1055 #: build/C/man3/aio_cancel.3:99
1056 msgid "The B<aio_cancel>() function is available since glibc 2.1."
1060 #: build/C/man3/aio_cancel.3:104 build/C/man3/aio_error.3:82 build/C/man3/aio_read.3:147 build/C/man3/aio_return.3:77
1061 msgid "See B<aio>(7)."
1065 #: build/C/man3/aio_cancel.3:113
1067 "B<aio_error>(3), B<aio_fsync>(3), B<aio_read>(3), B<aio_return>(3), "
1068 "B<aio_suspend>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7)"
1072 #: build/C/man3/aio_error.3:23
1078 #: build/C/man3/aio_error.3:23 build/C/man3/aio_read.3:23 build/C/man3/aio_return.3:23
1084 #: build/C/man3/aio_error.3:26
1085 msgid "aio_error - get error status of asynchronous I/O operation"
1089 #: build/C/man3/aio_error.3:30
1090 msgid "B<int aio_error(const struct aiocb *>I<aiocbp>B<);>"
1094 #: build/C/man3/aio_error.3:43
1096 "The B<aio_error>() function returns the error status for the asynchronous "
1097 "I/O request with control block pointed to by I<aiocbp>. (See B<aio>(7) for "
1098 "a description of the I<aiocb> structure.)"
1102 #: build/C/man3/aio_error.3:45
1103 msgid "This function returns one of the following:"
1107 #: build/C/man3/aio_error.3:45 build/C/man3/aio_error.3:49 build/C/man3/aio_error.3:52 build/C/man3/aio_error.3:54 build/C/man3/aio_suspend.3:42 build/C/man3/aio_suspend.3:46 build/C/man3/aio_suspend.3:48
1113 #: build/C/man3/aio_error.3:49
1114 msgid "B<EINPROGRESS>, if the request has not been completed yet."
1118 #: build/C/man3/aio_error.3:52
1119 msgid "B<ECANCELED>, if the request was canceled."
1123 #: build/C/man3/aio_error.3:54
1124 msgid "0, if the request completed successfully."
1128 #: build/C/man3/aio_error.3:65
1130 "A positive error, if the asynchronous I/O operation failed. This is the "
1131 "same value that would have been stored in the I<errno> variable in the case "
1132 "of a synchronous B<read>(2), B<write>(2), B<fsync>(2), or B<fdatasync>(2) "
1137 #: build/C/man3/aio_error.3:73
1139 "I<aiocbp> does not point at a control block for an asynchronous I/O request "
1140 "of which the return status (see B<aio_return>(3)) has not been retrieved "
1145 #: build/C/man3/aio_error.3:77
1146 msgid "The B<aio_error>() function is available since glibc 2.1."
1150 #: build/C/man3/aio_error.3:91
1152 "B<aio_cancel>(3), B<aio_fsync>(3), B<aio_read>(3), B<aio_return>(3), "
1153 "B<aio_suspend>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7)"
1157 #: build/C/man3/aio_fsync.3:23
1163 #: build/C/man3/aio_fsync.3:26
1164 msgid "aio_fsync - asynchronous file synchronization"
1168 #: build/C/man3/aio_fsync.3:30
1169 msgid "B<int aio_fsync(int >I<op>B<, struct aiocb *>I<aiocbp>B<);>"
1173 #: build/C/man3/aio_fsync.3:43
1175 "The B<aio_fsync>() function does a sync on all outstanding asynchronous I/O "
1176 "operations associated with I<aiocbp-E<gt>aio_fildes>. (See B<aio>(7) for a "
1177 "description of the I<aiocb> structure.)"
1181 #: build/C/man3/aio_fsync.3:57
1183 "More precisely, if I<op> is B<O_SYNC>, then all currently queued I/O "
1184 "operations shall be completed as if by a call of B<fsync>(2), and if I<op> "
1185 "is B<O_DSYNC>, this call is the asynchronous analog of B<fdatasync>(2)."
1189 #: build/C/man3/aio_fsync.3:59
1190 msgid "Note that this is a request only; it does not wait for I/O completion."
1194 #: build/C/man3/aio_fsync.3:72
1196 "Apart from I<aio_fildes>, the only field in the structure pointed to by "
1197 "I<aiocbp> that is used by this call is the I<aio_sigevent> field (a "
1198 "I<sigevent> structure, described in B<sigevent>(7)), which indicates the "
1199 "desired type of asynchronous notification at completion. All other fields "
1204 #: build/C/man3/aio_fsync.3:78
1206 "On success (the sync request was successfully queued) this function returns "
1207 "0. On error -1 is returned, and I<errno> is set appropriately."
1211 #: build/C/man3/aio_fsync.3:79 build/C/man3/aio_read.3:103 build/C/man3/aio_suspend.3:88 build/C/man3/aio_write.3:110 build/C/man2/io_cancel.2:57 build/C/man2/io_setup.2:55 build/C/man2/io_submit.2:55 build/C/man3/lio_listio.3:149 build/C/man3/lio_listio.3:152
1217 #: build/C/man3/aio_fsync.3:82 build/C/man3/aio_read.3:106 build/C/man3/aio_write.3:113 build/C/man3/lio_listio.3:152
1218 msgid "Out of resources."
1222 #: build/C/man3/aio_fsync.3:86 build/C/man3/aio_write.3:117
1223 msgid "I<aio_fildes> is not a valid file descriptor open for writing."
1227 #: build/C/man3/aio_fsync.3:94
1229 "Synchronized I/O is not supported for this file, or I<op> is not B<O_SYNC> "
1234 #: build/C/man3/aio_fsync.3:98
1235 msgid "The B<aio_fsync>() function is available since glibc 2.1."
1239 #: build/C/man3/aio_fsync.3:110
1241 "B<aio_cancel>(3), B<aio_error>(3), B<aio_read>(3), B<aio_return>(3), "
1242 "B<aio_suspend>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7), "
1247 #: build/C/man3/aio_init.3:24
1253 #: build/C/man3/aio_init.3:24
1259 #: build/C/man3/aio_init.3:27
1260 msgid "aio_init - asynchronous I/O initialization"
1264 #: build/C/man3/aio_init.3:31
1267 "B<#define _GNU_SOURCE> /* See feature_test_macros(7) */\n"
1268 "B<#include E<lt>aio.hE<gt>>\n"
1272 #: build/C/man3/aio_init.3:33
1274 msgid "B<void aio_init(const struct aioinit *>I<init>B<);>\n"
1278 #: build/C/man3/aio_init.3:43
1280 "The GNU-specific B<aio_init>() function allows the caller to provide tuning "
1281 "hints to the glibc POSIX AIO implementation. Use of this function is "
1282 "optional, but to be effective, it must be called before employing any other "
1283 "functions in the POSIX AIO API."
1287 #: build/C/man3/aio_init.3:47
1289 "The tuning information is provided in the buffer pointed to by the argument "
1290 "I<init>. This buffer is a structure of the following form:"
1294 #: build/C/man3/aio_init.3:62
1297 "struct aioinit {\n"
1298 " int aio_threads; /* Maximum number of threads */\n"
1299 " int aio_num; /* Number of expected simultaneous\n"
1301 " int aio_locks; /* Not used */\n"
1302 " int aio_usedba; /* Not used */\n"
1303 " int aio_debug; /* Not used */\n"
1304 " int aio_numusers; /* Not used */\n"
1305 " int aio_idle_time; /* Number of seconds before idle thread\n"
1306 " terminates (since glibc 2.2) */\n"
1307 " int aio_reserved;\n"
1312 #: build/C/man3/aio_init.3:68
1313 msgid "The following fields are used in the I<aioinit> structure:"
1317 #: build/C/man3/aio_init.3:68
1319 msgid "I<aio_threads>"
1323 #: build/C/man3/aio_init.3:76
1325 "This field specifies the maximum number of worker threads that may be used "
1326 "by the implementation. If the number of outstanding I/O operations exceeds "
1327 "this limit, then excess operations will be queued until a worker thread "
1328 "becomes free. If this field is specified with a value less than 1, the "
1329 "value 1 is used. The default value is 20."
1333 #: build/C/man3/aio_init.3:76
1338 #. FIXME But, if aio_num > 32, the behavior looks strange. See
1339 #. http://sourceware.org/bugzilla/show_bug.cgi?id=12083
1341 #: build/C/man3/aio_init.3:85
1343 "This field should specify the maximum number of simultaneous I/O requests "
1344 "that the caller expects to enqueue. If a value less than 32 is specified "
1345 "for this field, it is rounded up to 32. The default value is 64."
1349 #: build/C/man3/aio_init.3:85
1351 msgid "I<aio_idle_time>"
1355 #: build/C/man3/aio_init.3:91
1357 "This field specifies the amount of time in seconds that a worker thread "
1358 "should wait for further requests before terminating, after having completed "
1359 "a previous request. The default value is 1."
1363 #: build/C/man3/aio_init.3:95
1364 msgid "The B<aio_init>() function is available since glibc 2.1."
1368 #: build/C/man3/aio_init.3:97
1369 msgid "This function is a GNU extension."
1373 #: build/C/man3/aio_init.3:99
1378 #: build/C/man3/aio_read.3:23
1384 #: build/C/man3/aio_read.3:26
1385 msgid "aio_read - asynchronous read"
1389 #: build/C/man3/aio_read.3:30
1390 msgid "B<int aio_read(struct aiocb *>I<aiocbp>B<);>"
1394 #: build/C/man3/aio_read.3:40
1396 "The B<aio_read>() function queues the I/O request described by the buffer "
1397 "pointed to by I<aiocbp>. This function is the asynchronous analog of "
1398 "B<read>(2). The arguments of the call"
1402 #: build/C/man3/aio_read.3:42
1404 msgid " read(fd, buf, count)\n"
1408 #: build/C/man3/aio_read.3:55 build/C/man3/aio_write.3:55
1410 "correspond (in order) to the fields I<aio_fildes>, I<aio_buf>, and "
1411 "I<aio_nbytes> of the structure pointed to by I<aiocbp>. (See B<aio>(7) for "
1412 "a description of the I<aiocb> structure.)"
1416 #: build/C/man3/aio_read.3:61
1418 "The data is read starting at the absolute file offset "
1419 "I<aiocbp-E<gt>aio_offset>, regardless of the current file offset. After the "
1420 "call, the value of the current file offset is unspecified."
1424 #: build/C/man3/aio_read.3:74
1426 "The \"asynchronous\" means that this call returns as soon as the request has "
1427 "been enqueued; the read may or may not have completed when the call "
1428 "returns. One tests for completion using B<aio_error>(3). The return status "
1429 "of a completed I/O operation can be obtained by B<aio_return>(3). "
1430 "Asynchronous notification of I/O completion can be obtained by setting "
1431 "I<aiocbp-E<gt>aio_sigevent> appropriately; see B<sigevent>(7) for details."
1435 #: build/C/man3/aio_read.3:81 build/C/man3/aio_write.3:88
1437 "If B<_POSIX_PRIORITIZED_IO> is defined, and this file supports it, then the "
1438 "asynchronous operation is submitted at a priority equal to that of the "
1439 "calling process minus I<aiocbp-E<gt>aio_reqprio>."
1443 #: build/C/man3/aio_read.3:85 build/C/man3/aio_write.3:92
1444 msgid "The field I<aiocbp-E<gt>aio_lio_opcode> is ignored."
1448 #: build/C/man3/aio_read.3:87
1449 msgid "No data is read from a regular file beyond its maximum offset."
1453 #: build/C/man3/aio_read.3:102 build/C/man3/aio_write.3:109
1455 "On success, 0 is returned. On error the request is not enqueued, -1 is "
1456 "returned, and I<errno> is set appropriately. If an error is only detected "
1457 "later, it will be reported via B<aio_return>(3) (returns status -1) and "
1458 "B<aio_error>(3) (error status\\(emwhatever one would have gotten in "
1459 "I<errno>, such as B<EBADF>)."
1463 #: build/C/man3/aio_read.3:110
1464 msgid "I<aio_fildes> is not a valid file descriptor open for reading."
1468 #: build/C/man3/aio_read.3:118
1469 msgid "One or more of I<aio_offset>, I<aio_reqprio>, or I<aio_nbytes> are invalid."
1473 #: build/C/man3/aio_read.3:118 build/C/man3/aio_write.3:128 build/C/man2/io_cancel.2:66 build/C/man2/io_destroy.2:60 build/C/man2/io_getevents.2:73 build/C/man2/io_setup.2:69 build/C/man2/io_submit.2:71
1479 #: build/C/man3/aio_read.3:121 build/C/man3/aio_write.3:131
1480 msgid "This function is not supported."
1484 #: build/C/man3/aio_read.3:121
1486 msgid "B<EOVERFLOW>"
1490 #: build/C/man3/aio_read.3:126
1492 "The file is a regular file, we start reading before end-of-file and want at "
1493 "least one byte, but the starting position is past the maximum offset for "
1498 #: build/C/man3/aio_read.3:130
1499 msgid "The B<aio_read>() function is available since glibc 2.1."
1502 #. or the control block of the operation
1504 #: build/C/man3/aio_read.3:140
1506 "It is a good idea to zero out the control block before use. The control "
1507 "block must not be changed while the read operation is in progress. The "
1508 "buffer area being read into must not be accessed during the operation or "
1509 "undefined results may occur. The memory areas involved must remain valid."
1513 #: build/C/man3/aio_read.3:144 build/C/man3/aio_write.3:149 build/C/man3/lio_listio.3:218
1515 "Simultaneous I/O operations specifying the same I<aiocb> structure produce "
1516 "undefined results."
1520 #: build/C/man3/aio_read.3:156
1522 "B<aio_cancel>(3), B<aio_error>(3), B<aio_fsync>(3), B<aio_return>(3), "
1523 "B<aio_suspend>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7)"
1527 #: build/C/man3/aio_return.3:23
1533 #: build/C/man3/aio_return.3:26
1534 msgid "aio_return - get return status of asynchronous I/O operation"
1538 #: build/C/man3/aio_return.3:30
1539 msgid "B<ssize_t aio_return(struct aiocb *>I<aiocbp>B<);>"
1543 #: build/C/man3/aio_return.3:43
1545 "The B<aio_return>() function returns the final return status for the "
1546 "asynchronous I/O request with control block pointed to by I<aiocbp>. (See "
1547 "B<aio>(7) for a description of the I<aiocb> structure.)"
1551 #: build/C/man3/aio_return.3:48
1553 "This function should be called only once for any given request, after "
1554 "B<aio_error>(3) returns something other than B<EINPROGRESS>."
1558 #: build/C/man3/aio_return.3:57
1560 "If the asynchronous I/O operation has completed, this function returns the "
1561 "value that would have been returned in case of a synchronous B<read>(2), "
1562 "B<write>(2), B<fsync>(2) or B<fdatasync>(2), call."
1566 #: build/C/man3/aio_return.3:62
1568 "If the asynchronous I/O operation has not yet completed, the return value "
1569 "and effect of B<aio_return>() are undefined."
1573 #: build/C/man3/aio_return.3:68
1575 "I<aiocbp> does not point at a control block for an asynchronous I/O request "
1576 "of which the return status has not been retrieved yet."
1580 #: build/C/man3/aio_return.3:72
1581 msgid "The B<aio_return>() function is available since glibc 2.1."
1585 #: build/C/man3/aio_return.3:86
1587 "B<aio_cancel>(3), B<aio_error>(3), B<aio_fsync>(3), B<aio_read>(3), "
1588 "B<aio_suspend>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7)"
1592 #: build/C/man3/aio_suspend.3:24
1598 #: build/C/man3/aio_suspend.3:27
1599 msgid "aio_suspend - wait for asynchronous I/O operation or timeout"
1603 #: build/C/man3/aio_suspend.3:31 build/C/man3/lio_listio.3:29
1605 msgid "B<#include E<lt>aio.hE<gt>>\n"
1609 #: build/C/man3/aio_suspend.3:33
1611 msgid "B<int aio_suspend(const struct aiocb * const >I<aiocb_list>B<[],>\n"
1615 #: build/C/man3/aio_suspend.3:35
1618 "B< int >I<nitems>B<, const struct timespec "
1619 "*>I<timeout>B<);>\n"
1623 #: build/C/man3/aio_suspend.3:37 build/C/man3/lio_listio.3:34
1625 msgid "Link with I<-lrt>.\n"
1629 #: build/C/man3/aio_suspend.3:42
1631 "The B<aio_suspend>() function suspends the calling thread until one of the "
1636 #: build/C/man3/aio_suspend.3:46
1638 "One or more of the asynchronous I/O requests in the list I<aiocb_list> has "
1643 #: build/C/man3/aio_suspend.3:48
1644 msgid "A signal is delivered."
1648 #: build/C/man3/aio_suspend.3:55
1650 "I<timeout> is not NULL and the specified time interval has passed. (For "
1651 "details of the I<timespec> structure, see B<nanosleep>(2).)"
1655 #: build/C/man3/aio_suspend.3:73
1657 "The I<nitems> argument specifies the number of items in I<aiocb_list>. Each "
1658 "item in the list pointed to by I<aiocb_list> must be either NULL (and then "
1659 "is ignored), or a pointer to a control block on which I/O was initiated "
1660 "using B<aio_read>(3), B<aio_write>(3), or B<lio_listio>(3). (See B<aio>(7) "
1661 "for a description of the I<aiocb> structure.)"
1665 #: build/C/man3/aio_suspend.3:79
1667 "If B<CLOCK_MONOTONIC> is supported, this clock is used to measure the "
1668 "timeout interval (see B<clock_gettime>(3))."
1672 #: build/C/man3/aio_suspend.3:87
1674 "If this function returns after completion of one of the I/O requests "
1675 "specified in I<aiocb_list>, 0 is returned. Otherwise, -1 is returned, and "
1676 "I<errno> is set to indicate the error."
1680 #: build/C/man3/aio_suspend.3:92
1681 msgid "The call timed out before any of the indicated operations had completed."
1685 #: build/C/man3/aio_suspend.3:92 build/C/man2/io_getevents.2:69 build/C/man3/lio_listio.3:168
1691 #: build/C/man3/aio_suspend.3:98
1693 "The call was ended by signal (possibly the completion signal of one of the "
1694 "operations we were waiting for); see B<signal>(7)."
1698 #: build/C/man3/aio_suspend.3:102
1699 msgid "The B<aio_suspend>() function is available since glibc 2.1."
1703 #: build/C/man3/aio_suspend.3:108
1705 "One can achieve polling by using a non-NULL I<timeout> that specifies a zero "
1710 #: build/C/man3/aio_suspend.3:114
1712 "If one or more of the asynchronous I/O operations specified in I<aiocb_list> "
1713 "has already completed at the time of the call to B<aio_suspend>(), then the "
1714 "call returns immediately."
1718 #: build/C/man3/aio_suspend.3:124
1720 "To determine which I/O operations have completed after a successful return "
1721 "from B<aio_suspend>(), use B<aio_error>(3) to scan the list of I<aiocb> "
1722 "structures pointed to by I<aiocb_list>."
1726 #: build/C/man3/aio_suspend.3:134
1728 "B<aio_cancel>(3), B<aio_error>(3), B<aio_fsync>(3), B<aio_read>(3), "
1729 "B<aio_return>(3), B<aio_write>(3), B<lio_listio>(3), B<aio>(7), B<time>(7)"
1733 #: build/C/man3/aio_write.3:23
1739 #: build/C/man3/aio_write.3:26
1740 msgid "aio_write - asynchronous write"
1744 #: build/C/man3/aio_write.3:30
1745 msgid "B<int aio_write(struct aiocb *>I<aiocbp>B<);>"
1749 #: build/C/man3/aio_write.3:40
1751 "The B<aio_write>() function queues the I/O request described by the buffer "
1752 "pointed to by I<aiocb>. This function is the asynchronous analog of "
1753 "B<write>(2). The arguments of the call"
1757 #: build/C/man3/aio_write.3:42
1759 msgid " write(fd, buf, count)\n"
1763 #: build/C/man3/aio_write.3:68
1765 "If B<O_APPEND> is not set, the data is written starting at the absolute file "
1766 "offset I<aiocbp-E<gt>aio_offset>, regardless of the current file offset. If "
1767 "B<O_APPEND> is set, data is written at the end of the file in the same order "
1768 "as B<aio_write>() calls are made. After the call, the value of the current "
1769 "file offset is unspecified."
1773 #: build/C/man3/aio_write.3:81
1775 "The \"asynchronous\" means that this call returns as soon as the request has "
1776 "been enqueued; the write may or may not have completed when the call "
1777 "returns. One tests for completion using B<aio_error>(3). The return status "
1778 "of a completed I/O operation can be obtained B<aio_return>(3). Asynchronous "
1779 "notification of I/O completion can be obtained by setting "
1780 "I<aiocbp-E<gt>aio_sigevent> appropriately; see B<sigevent>(7) for details."
1784 #: build/C/man3/aio_write.3:94
1785 msgid "No data is written to a regular file beyond its maximum offset."
1789 #: build/C/man3/aio_write.3:117
1795 #: build/C/man3/aio_write.3:121
1797 "The file is a regular file, we want to write at least one byte, but the "
1798 "starting position is at or beyond the maximum offset for this file."
1802 #: build/C/man3/aio_write.3:128
1803 msgid "One or more of I<aio_offset>, I<aio_reqprio>, I<aio_nbytes> are invalid."
1807 #: build/C/man3/aio_write.3:135
1808 msgid "The B<aio_write>() function is available since glibc 2.1."
1811 #. or the control block of the operation
1813 #: build/C/man3/aio_write.3:145
1815 "It is a good idea to zero out the control block before use. The control "
1816 "block must not be changed while the write operation is in progress. The "
1817 "buffer area being written out must not be accessed during the operation or "
1818 "undefined results may occur. The memory areas involved must remain valid."
1822 #: build/C/man3/aio_write.3:158
1824 "B<aio_cancel>(3), B<aio_error>(3), B<aio_fsync>(3), B<aio_read>(3), "
1825 "B<aio_return>(3), B<aio_suspend>(3), B<lio_listio>(3), B<aio>(7)"
1829 #: build/C/man2/io_cancel.2:23
1835 #: build/C/man2/io_cancel.2:23 build/C/man2/io_destroy.2:23 build/C/man2/io_setup.2:23 build/C/man2/io_submit.2:23
1841 #: build/C/man2/io_cancel.2:26
1842 msgid "io_cancel - cancel an outstanding asynchronous I/O operation"
1847 #. #include <linux/aio.h>
1849 #: build/C/man2/io_cancel.2:33 build/C/man2/io_destroy.2:32 build/C/man2/io_setup.2:32 build/C/man2/io_submit.2:32
1851 msgid "B<#include E<lt>libaio.hE<gt>>\n"
1858 #: build/C/man2/io_cancel.2:39
1861 "B<int io_cancel(aio_context_t >I<ctx_id>B<, struct iocb *>I<iocb>B<,>\n"
1862 "B< struct io_event *>I<result>B<);>\n"
1866 #: build/C/man2/io_cancel.2:41 build/C/man2/io_destroy.2:39 build/C/man2/io_getevents.2:42 build/C/man2/io_setup.2:39 build/C/man2/io_submit.2:40
1868 msgid "Link with I<-laio>.\n"
1872 #: build/C/man2/io_cancel.2:51
1874 "B<io_cancel>() attempts to cancel an asynchronous I/O operation previously "
1875 "submitted with B<io_submit>(2). I<ctx_id> is the AIO context ID of the "
1876 "operation to be canceled. If the AIO context is found, the event will be "
1877 "canceled and then copied into the memory pointed to by I<result> without "
1878 "being placed into the completion queue."
1882 #: build/C/man2/io_cancel.2:56
1883 msgid "On success, B<io_cancel>() returns 0. For the failure return, see NOTES."
1887 #: build/C/man2/io_cancel.2:60
1888 msgid "The I<iocb> specified was not canceled."
1892 #: build/C/man2/io_cancel.2:60 build/C/man2/io_destroy.2:54 build/C/man2/io_getevents.2:61 build/C/man2/io_setup.2:58 build/C/man2/io_submit.2:61
1898 #: build/C/man2/io_cancel.2:63 build/C/man2/io_submit.2:64
1899 msgid "One of the data structures points to invalid data."
1903 #: build/C/man2/io_cancel.2:66
1904 msgid "The AIO context specified by I<ctx_id> is invalid."
1908 #: build/C/man2/io_cancel.2:70
1909 msgid "B<io_cancel>() is not implemented on this architecture."
1913 #: build/C/man2/io_cancel.2:73 build/C/man2/io_destroy.2:67 build/C/man2/io_getevents.2:80 build/C/man2/io_setup.2:76 build/C/man2/io_submit.2:78
1914 msgid "The asynchronous I/O system calls first appeared in Linux 2.5, August 2002."
1918 #: build/C/man2/io_cancel.2:78
1920 "B<io_cancel>() is Linux-specific and should not be used in programs that "
1921 "are intended to be portable."
1925 #: build/C/man2/io_cancel.2:80 build/C/man2/io_destroy.2:74 build/C/man2/io_getevents.2:87 build/C/man2/io_setup.2:83 build/C/man2/io_submit.2:85
1926 msgid "Glibc does not provide a wrapper function for this system call."
1930 #: build/C/man2/io_cancel.2:94
1932 "The wrapper provided in I<libaio> for B<io_cancel>() does not follow the "
1933 "usual C library conventions for indicating error: on error it returns a "
1934 "negated error number (the negative of one of the values listed in ERRORS). "
1935 "If the system call is invoked via B<syscall>(2), then the return value "
1936 "follows the usual conventions for indicating an error: -1, with I<errno> set "
1937 "to a (positive) value that indicates the error."
1943 #. The asynchronous I/O system calls were written by Benjamin LaHaise.
1948 #: build/C/man2/io_cancel.2:107
1950 "B<io_destroy>(2), B<io_getevents>(2), B<io_setup>(2), B<io_submit>(2), "
1955 #: build/C/man2/io_destroy.2:23
1961 #: build/C/man2/io_destroy.2:26
1962 msgid "io_destroy - destroy an asynchronous I/O context"
1969 #: build/C/man2/io_destroy.2:37
1971 msgid "B<int io_destroy(aio_context_t >I<ctx>B<);>\n"
1975 #: build/C/man2/io_destroy.2:48
1977 "B<io_destroy>() removes the asynchronous I/O context from the list of I/O "
1978 "contexts and then destroys it. B<io_destroy>() can also cancel any "
1979 "outstanding asynchronous I/O actions on I<ctx> and block on completion."
1983 #: build/C/man2/io_destroy.2:53
1984 msgid "On success, B<io_destroy>() returns 0. For the failure return, see NOTES."
1988 #: build/C/man2/io_destroy.2:57
1989 msgid "The context pointed to is invalid."
1993 #: build/C/man2/io_destroy.2:60
1994 msgid "The AIO context specified by I<ctx> is invalid."
1998 #: build/C/man2/io_destroy.2:64
1999 msgid "B<io_destroy>() is not implemented on this architecture."
2003 #: build/C/man2/io_destroy.2:72
2005 "B<io_destroy>() is Linux-specific and should not be used in programs that "
2006 "are intended to be portable."
2010 #: build/C/man2/io_destroy.2:88
2012 "The wrapper provided in I<libaio> for B<io_destroy>() does not follow the "
2013 "usual C library conventions for indicating error: on error it returns a "
2014 "negated error number (the negative of one of the values listed in ERRORS). "
2015 "If the system call is invoked via B<syscall>(2), then the return value "
2016 "follows the usual conventions for indicating an error: -1, with I<errno> set "
2017 "to a (positive) value that indicates the error."
2023 #. The asynchronous I/O system calls were written by Benjamin LaHaise.
2028 #: build/C/man2/io_destroy.2:101
2030 "B<io_cancel>(2), B<io_getevents>(2), B<io_setup>(2), B<io_submit>(2), "
2035 #: build/C/man2/io_getevents.2:23
2037 msgid "IO_GETEVENTS"
2041 #: build/C/man2/io_getevents.2:23
2047 #: build/C/man2/io_getevents.2:26
2048 msgid "io_getevents - read asynchronous I/O events from the completion queue"
2053 #. #include <linux/aio.h>
2055 #: build/C/man2/io_getevents.2:33
2058 "B<#include E<lt>linux/time.hE<gt>>\n"
2059 "B<#include E<lt>libaio.hE<gt>>\n"
2066 #: build/C/man2/io_getevents.2:40
2069 "B<int io_getevents(aio_context_t >I<ctx_id>B<, long >I<min_nr>B<, long "
2071 "B< struct io_event *>I<events>B<, struct timespec "
2072 "*>I<timeout>B<);>\n"
2076 #: build/C/man2/io_getevents.2:54
2078 "B<io_getevents>() attempts to read at least I<min_nr> events and up to "
2079 "I<nr> events from the completion queue of the AIO context specified by "
2080 "I<ctx_id>. I<timeout> specifies the amount of time to wait for events, "
2081 "where a NULL timeout waits until at least I<min_nr> events have been seen. "
2082 "Note that I<timeout> is relative and will be updated if not NULL and the "
2087 #: build/C/man2/io_getevents.2:60
2089 "On success, B<io_getevents>() returns the number of events read: 0 if no "
2090 "events are available, or less than I<min_nr> if the I<timeout> has elapsed. "
2091 "For the failure return, see NOTES."
2095 #: build/C/man2/io_getevents.2:64
2096 msgid "Either I<events> or I<timeout> is an invalid pointer."
2100 #: build/C/man2/io_getevents.2:69
2101 msgid "I<ctx_id> is invalid. I<min_nr> is out of range or I<nr> is out of range."
2105 #: build/C/man2/io_getevents.2:73
2106 msgid "Interrupted by a signal handler; see B<signal>(7)."
2110 #: build/C/man2/io_getevents.2:77
2111 msgid "B<io_getevents>() is not implemented on this architecture."
2115 #: build/C/man2/io_getevents.2:85
2117 "B<io_getevents>() is Linux-specific and should not be used in programs that "
2118 "are intended to be portable."
2122 #: build/C/man2/io_getevents.2:101
2124 "The wrapper provided in I<libaio> for B<io_getevents>() does not follow the "
2125 "usual C library conventions for indicating error: on error it returns a "
2126 "negated error number (the negative of one of the values listed in ERRORS). "
2127 "If the system call is invoked via B<syscall>(2), then the return value "
2128 "follows the usual conventions for indicating an error: -1, with I<errno> set "
2129 "to a (positive) value that indicates the error."
2135 #. The asynchronous I/O system calls were written by Benjamin LaHaise.
2140 #: build/C/man2/io_getevents.2:116
2142 "B<io_cancel>(2), B<io_destroy>(2), B<io_setup>(2), B<io_submit>(2), "
2143 "B<aio>(7), B<time>(7)"
2147 #: build/C/man2/io_setup.2:23
2153 #: build/C/man2/io_setup.2:26
2154 msgid "io_setup - create an asynchronous I/O context"
2161 #: build/C/man2/io_setup.2:37
2163 msgid "B<int io_setup(unsigned >I<nr_events>B<, aio_context_t *>I<ctxp>B<);>\n"
2167 #: build/C/man2/io_setup.2:49
2169 "B<io_setup>() creates an asynchronous I/O context capable of receiving at "
2170 "least I<nr_events>. I<ctxp> must not point to an AIO context that already "
2171 "exists, and must be initialized to 0 prior to the call. On successful "
2172 "creation of the AIO context, I<*ctxp> is filled in with the resulting "
2177 #: build/C/man2/io_setup.2:54
2178 msgid "On success, B<io_setup>() returns 0. For the failure return, see NOTES."
2182 #: build/C/man2/io_setup.2:58
2183 msgid "The specified I<nr_events> exceeds the user's limit of available events."
2187 #: build/C/man2/io_setup.2:61
2188 msgid "An invalid pointer is passed for I<ctxp>."
2192 #: build/C/man2/io_setup.2:66
2194 "I<ctxp> is not initialized, or the specified I<nr_events> exceeds internal "
2195 "limits. I<nr_events> should be greater than 0."
2199 #: build/C/man2/io_setup.2:66
2205 #: build/C/man2/io_setup.2:69
2206 msgid "Insufficient kernel resources are available."
2210 #: build/C/man2/io_setup.2:73
2211 msgid "B<io_setup>() is not implemented on this architecture."
2215 #: build/C/man2/io_setup.2:81
2217 "B<io_setup>() is Linux-specific and should not be used in programs that are "
2218 "intended to be portable."
2222 #: build/C/man2/io_setup.2:97
2224 "The wrapper provided in I<libaio> for B<io_setup>() does not follow the "
2225 "usual C library conventions for indicating error: on error it returns a "
2226 "negated error number (the negative of one of the values listed in ERRORS). "
2227 "If the system call is invoked via B<syscall>(2), then the return value "
2228 "follows the usual conventions for indicating an error: -1, with I<errno> set "
2229 "to a (positive) value that indicates the error."
2234 #. The asynchronous I/O system calls were written by Benjamin LaHaise.
2238 #: build/C/man2/io_setup.2:108
2240 "B<io_cancel>(2), B<io_destroy>(2), B<io_getevents>(2), B<io_submit>(2), "
2245 #: build/C/man2/io_submit.2:23
2251 #: build/C/man2/io_submit.2:26
2252 msgid "io_submit - submit asynchronous I/O blocks for processing"
2259 #: build/C/man2/io_submit.2:38
2262 "B<int io_submit(aio_context_t >I<ctx_id>B<, long >I<nr>B<, struct iocb "
2263 "**>I<iocbpp>B<);>\n"
2267 #: build/C/man2/io_submit.2:48
2269 "B<io_submit>() queues I<nr> I/O request blocks for processing in the AIO "
2270 "context I<ctx_id>. I<iocbpp> should be an array of I<nr> AIO control "
2271 "blocks, which will be submitted to context I<ctx_id>."
2275 #: build/C/man2/io_submit.2:54
2277 "On success, B<io_submit>() returns the number of I<iocb>s submitted (which "
2278 "may be 0 if I<nr> is zero). For the failure return, see NOTES."
2282 #: build/C/man2/io_submit.2:58
2283 msgid "Insufficient resources are available to queue any I<iocb>s."
2287 #: build/C/man2/io_submit.2:61
2288 msgid "The file descriptor specified in the first I<iocb> is invalid."
2292 #: build/C/man2/io_submit.2:71
2294 "The I<aio_context> specified by I<ctx_id> is invalid. I<nr> is less than "
2295 "0. The I<iocb> at *iocbpp[0] is not properly initialized, or the operation "
2296 "specified is invalid for the file descriptor in the I<iocb>."
2300 #: build/C/man2/io_submit.2:75
2301 msgid "B<io_submit>() is not implemented on this architecture."
2305 #: build/C/man2/io_submit.2:83
2307 "B<io_submit>() is Linux-specific and should not be used in programs that "
2308 "are intended to be portable."
2312 #: build/C/man2/io_submit.2:99
2314 "The wrapper provided in I<libaio> for B<io_submit>() does not follow the "
2315 "usual C library conventions for indicating error: on error it returns a "
2316 "negated error number (the negative of one of the values listed in ERRORS). "
2317 "If the system call is invoked via B<syscall>(2), then the return value "
2318 "follows the usual conventions for indicating an error: -1, with I<errno> set "
2319 "to a (positive) value that indicates the error."
2324 #. The asynchronous I/O system calls were written by Benjamin LaHaise.
2328 #: build/C/man2/io_submit.2:110
2330 "B<io_cancel>(2), B<io_destroy>(2), B<io_getevents>(2), B<io_setup>(2), "
2335 #: build/C/man3/lio_listio.3:23
2341 #: build/C/man3/lio_listio.3:23
2347 #: build/C/man3/lio_listio.3:26
2348 msgid "lio_listio - initiate a list of I/O requests"
2352 #: build/C/man3/lio_listio.3:32
2355 "B<int lio_listio(int >I<mode>B<, struct aiocb *const >I<aiocb_list>B<[],>\n"
2356 "B< int >I<nitems>B<, struct sigevent *>I<sevp>B<);>\n"
2360 #: build/C/man3/lio_listio.3:40
2362 "The B<lio_listio>() function initiates the list of I/O operations described "
2363 "by the array I<aiocb_list>."
2367 #: build/C/man3/lio_listio.3:44
2368 msgid "The I<mode> operation has one of the following values:"
2372 #: build/C/man3/lio_listio.3:44
2378 #: build/C/man3/lio_listio.3:50
2380 "The call blocks until all operations are complete. The I<sevp> argument is "
2385 #: build/C/man3/lio_listio.3:50
2387 msgid "B<LIO_NOWAIT>"
2391 #: build/C/man3/lio_listio.3:62
2393 "The I/O operations are queued for processing and the call returns "
2394 "immediately. When the I/O operations complete, asynchronous notification "
2395 "occurs, as specified by the I<sevp> argument; see B<sigevent>(7) for "
2396 "details. If I<sevp> is NULL, no asynchronous notification occurs."
2400 #: build/C/man3/lio_listio.3:76
2402 "The I<aiocb_list> argument is an array of pointers to I<aiocb> structures "
2403 "that describe I/O operations. These operations are executed in an "
2404 "unspecified order. The I<nitems> argument specifies the size of the array "
2405 "I<aiocb_list>. NULL pointers in I<aiocb_list> are ignored."
2409 #: build/C/man3/lio_listio.3:82
2411 "In each control block in I<aiocb_list>, the I<aio_lio_opcode> field "
2412 "specifies the I/O operation to be initiated, as follows:"
2416 #: build/C/man3/lio_listio.3:82
2422 #: build/C/man3/lio_listio.3:88
2424 "Initiate a read operation. The operation is queued as for a call to "
2425 "B<aio_read>(3) specifying this control block."
2429 #: build/C/man3/lio_listio.3:88
2431 msgid "B<LIO_WRITE>"
2435 #: build/C/man3/lio_listio.3:94
2437 "Initiate a write operation. The operation is queued as for a call to "
2438 "B<aio_write>(3) specifying this control block."
2442 #: build/C/man3/lio_listio.3:94
2448 #: build/C/man3/lio_listio.3:97
2449 msgid "Ignore this control block."
2453 #: build/C/man3/lio_listio.3:107
2455 "The remaining fields in each control block have the same meanings as for "
2456 "B<aio_read>(3) and B<aio_write>(3). The I<aio_sigevent> fields of each "
2457 "control block can be used to specify notifications for the individual I/O "
2458 "operations (see B<sigevent>(7))."
2462 #: build/C/man3/lio_listio.3:117
2464 "If I<mode> is B<LIO_NOWAIT>, B<lio_listio>() returns 0 if all I/O "
2465 "operations are successfully queued. Otherwise, -1 is returned, and I<errno> "
2466 "is set to indicate the error."
2470 #: build/C/man3/lio_listio.3:127
2472 "If I<mode> is B<LIO_WAIT>, B<lio_listio>() returns 0 when all of the I/O "
2473 "operations have completed successfully. Otherwise, -1 is returned, and "
2474 "I<errno> is set to indicate the error."
2478 #: build/C/man3/lio_listio.3:145
2480 "The return status from B<lio_listio>() provides information only about the "
2481 "call itself, not about the individual I/O operations. One or more of the "
2482 "I/O operations may fail, but this does not prevent other operations "
2483 "completing. The status of individual I/O operations in I<aiocb_list> can be "
2484 "determined using B<aio_error>(3). When an operation has completed, its "
2485 "return status can be obtained using B<aio_return>(3). Individual I/O "
2486 "operations can fail for the reasons described in B<aio_read>(3) and "
2491 #: build/C/man3/lio_listio.3:149
2492 msgid "The B<lio_listio>() function may fail for the following reasons:"
2495 #. Doesn't happen in glibc(?)
2497 #: build/C/man3/lio_listio.3:160
2499 "The number of I/O operations specified by I<nitems> would cause the limit "
2500 "B<AIO_MAX> to be exceeded."
2503 #. Doesn't happen in glibc(?)
2505 #: build/C/man3/lio_listio.3:168
2506 msgid "I<mode> is invalid, or I<nitems> exceeds the limit B<AIO_LISTIO_MAX>."
2510 #: build/C/man3/lio_listio.3:177
2512 "I<mode> was B<LIO_WAIT> and a signal was caught before all I/O operations "
2513 "completed. (This may even be one of the signals used for asynchronous I/O "
2514 "completion notification.)"
2518 #: build/C/man3/lio_listio.3:177
2523 #. e.g., ioa_reqprio or aio_lio_opcode was invalid
2525 #: build/C/man3/lio_listio.3:185
2527 "One of more of the operations specified by I<aiocb_list> failed. The "
2528 "application can check the status of each operation using B<aio_return>(3)."
2532 #: build/C/man3/lio_listio.3:200
2534 "If B<lio_listio>() fails with the error B<EAGAIN>, B<EINTR>, or B<EIO>, "
2535 "then some of the operations in I<aiocb_list> may have been initiated. If "
2536 "B<lio_listio>() fails for any other reason, then none of the I/O operations "
2537 "has been initiated."
2541 #: build/C/man3/lio_listio.3:204
2542 msgid "The B<lio_listio>() function is available since glibc 2.1."
2545 #. or the control block of the operation
2547 #: build/C/man3/lio_listio.3:214
2549 "It is a good idea to zero out the control blocks before use. The control "
2550 "blocks must not be changed while the I/O operations are in progress. The "
2551 "buffer areas being read into or written from must not be accessed during the "
2552 "operations or undefined results may occur. The memory areas involved must "
2557 #: build/C/man3/lio_listio.3:226
2559 "B<aio_cancel>(3), B<aio_error>(3), B<aio_fsync>(3), B<aio_return>(3), "
2560 "B<aio_suspend>(3), B<aio_write>(3), B<aio>(7)"