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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3type/iovec.3type | |
parent | Initial commit. (diff) | |
download | manpages-399644e47874bff147afb19c89228901ac39340e.tar.xz manpages-399644e47874bff147afb19c89228901ac39340e.zip |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3type/iovec.3type')
-rw-r--r-- | man3type/iovec.3type | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/man3type/iovec.3type b/man3type/iovec.3type new file mode 100644 index 0000000..c2786f5 --- /dev/null +++ b/man3type/iovec.3type @@ -0,0 +1,49 @@ +.\" Copyright (c) 2022 by Alejandro Colomar <alx@kernel.org> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" +.TH iovec 3type 2023-03-30 "Linux man-pages 6.05.01" +.SH NAME +iovec \- Vector I/O data structure +.SH LIBRARY +Standard C library +.RI ( libc ) +.SH SYNOPSIS +.EX +.B #include <sys/uio.h> +.PP +.B struct iovec { +.BR " void *iov_base;" " /* Starting address */" +.BR " size_t iov_len;" " /* Size of the memory pointed to by "\c +.IR iov_base ". */" +.B }; +.EE +.SH DESCRIPTION +Describes a region of memory, beginning at +.I iov_base +address and with the size of +.I iov_len +bytes. +System calls use arrays of this structure, +where each element of the array represents a memory region, +and the whole array represents a vector of memory regions. +The maximum number of +.I iovec +structures in that array +is limited by +.B IOV_MAX +(defined in +.IR <limits.h> , +or accessible via the call +.IR sysconf(_SC_IOV_MAX) ). +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001. +.SH NOTES +The following header also provides this type: +.IR <sys/socket.h> . +.SH SEE ALSO +.BR process_madvise (2), +.BR readv (2) |