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Diffstat (limited to 'man3/aio_write.3')
-rw-r--r-- | man3/aio_write.3 | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/man3/aio_write.3 b/man3/aio_write.3 deleted file mode 100644 index eaba457..0000000 --- a/man3/aio_write.3 +++ /dev/null @@ -1,161 +0,0 @@ -'\" t -.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl) -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.TH aio_write 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -aio_write \- asynchronous write -.SH LIBRARY -Real-time library -.RI ( librt ", " \-lrt ) -.SH SYNOPSIS -.nf -.B "#include <aio.h>" -.P -.BI "int aio_write(struct aiocb *" aiocbp ); -.fi -.SH DESCRIPTION -The -.BR aio_write () -function queues the I/O request described by the buffer pointed to by -.IR aiocbp . -This function is the asynchronous analog of -.BR write (2). -The arguments of the call -.P -.in +4n -.EX -write(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 -If -.B O_APPEND -is not set, the data is written starting at the -absolute position -.IR aiocbp\->aio_offset , -regardless of the file offset. -If -.B O_APPEND -is set, data is written at the end of the file in the same order as -.BR aio_write () -calls are made. -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 write 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 -.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 written to 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 writing. -.TP -.B EFBIG -The file is a regular file, we want to write at least one byte, -but the starting position is at or beyond the maximum offset for this file. -.TP -.B EINVAL -One or more of -.IR aio_offset , -.IR aio_reqprio , -.I aio_nbytes -are invalid. -.TP -.B ENOSYS -.BR aio_write () -is not implemented. -.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_write () -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 write operation -is in progress. -The buffer area being written out -.\" 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 SEE ALSO -.BR aio_cancel (3), -.BR aio_error (3), -.BR aio_fsync (3), -.BR aio_read (3), -.BR aio_return (3), -.BR aio_suspend (3), -.BR lio_listio (3), -.BR aio (7) |