From 7f3caba522f4d24764f29d83aa2de9198bb7f01c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Adding upstream version 6.8. Signed-off-by: Daniel Baumann --- man3/aio_read.3 | 159 -------------------------------------------------------- 1 file changed, 159 deletions(-) delete mode 100644 man3/aio_read.3 (limited to 'man3/aio_read.3') diff --git a/man3/aio_read.3 b/man3/aio_read.3 deleted file mode 100644 index 49de8f8..0000000 --- a/man3/aio_read.3 +++ /dev/null @@ -1,159 +0,0 @@ -'\" t -.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl) -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.TH aio_read 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -aio_read \- asynchronous read -.SH LIBRARY -Real-time library -.RI ( librt ", " \-lrt ) -.SH SYNOPSIS -.nf -.B "#include " -.P -.BI "int aio_read(struct aiocb *" aiocbp ); -.fi -.SH DESCRIPTION -The -.BR aio_read () -function queues the I/O request described by the buffer pointed to by -.IR aiocbp . -This function is the asynchronous analog of -.BR read (2). -The arguments of the call -.P -.in +4n -.EX -read(fd, buf, count) -.EE -.in -.P -correspond (in order) to the fields -.IR aio_fildes , -.IR aio_buf , -and -.I aio_nbytes -of the structure pointed to by -.IR aiocbp . -(See -.BR aio (7) -for a description of the -.I aiocb -structure.) -.P -The data is read starting at the absolute position -.IR aiocbp\->aio_offset , -regardless of the file offset. -After the call, -the value of the file offset is unspecified. -.P -The "asynchronous" means that this call returns as soon as the -request has been enqueued; the read may or may not have completed -when the call returns. -One tests for completion using -.BR aio_error (3). -The return status of a completed I/O operation can be obtained by -.BR aio_return (3). -Asynchronous notification of I/O completion can be obtained by setting -.I aiocbp\->aio_sigevent -appropriately; see -.BR sigevent (3type) -for details. -.P -If -.B _POSIX_PRIORITIZED_IO -is defined, and this file supports it, -then the asynchronous operation is submitted at a priority equal -to that of the calling process minus -.IR aiocbp\->aio_reqprio . -.P -The field -.I aiocbp\->aio_lio_opcode -is ignored. -.P -No data is read from a regular file beyond its maximum offset. -.SH RETURN VALUE -On success, 0 is returned. -On error, the request is not enqueued, \-1 -is returned, and -.I errno -is set to indicate the error. -If an error is detected only later, it will -be reported via -.BR aio_return (3) -(returns status \-1) and -.BR aio_error (3) -(error status\[em]whatever one would have gotten in -.IR errno , -such as -.BR EBADF ). -.SH ERRORS -.TP -.B EAGAIN -Out of resources. -.TP -.B EBADF -.I aio_fildes -is not a valid file descriptor open for reading. -.TP -.B EINVAL -One or more of -.IR aio_offset , -.IR aio_reqprio , -or -.I aio_nbytes -are invalid. -.TP -.B ENOSYS -.BR aio_read () -is not implemented. -.TP -.B EOVERFLOW -The file is a regular file, we start reading before end-of-file -and want at least one byte, but the starting position is past -the maximum offset for this file. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR aio_read () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -POSIX.1-2008. -.SH HISTORY -glibc 2.1. -POSIX.1-2001. -.SH NOTES -It is a good idea to zero out the control block before use. -The control block must not be changed while the read operation -is in progress. -The buffer area being read into -.\" or the control block of the operation -must not be accessed during the operation or undefined results may occur. -The memory areas involved must remain valid. -.P -Simultaneous I/O operations specifying the same -.I aiocb -structure produce undefined results. -.SH EXAMPLES -See -.BR aio (7). -.SH SEE ALSO -.BR aio_cancel (3), -.BR aio_error (3), -.BR aio_fsync (3), -.BR aio_return (3), -.BR aio_suspend (3), -.BR aio_write (3), -.BR lio_listio (3), -.BR aio (7) -- cgit v1.2.3