Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man2/select.2 | 20 +++++++++++++++++++- man7/system_data_types.7 | 21 --------------------- 2 files changed, 19 insertions(+), 22 deletions(-) diff --git a/man2/select.2 b/man2/select.2 index aee25c52c..e70c7e537 100644 --- a/man2/select.2 +++ b/man2/select.2 @@ -39,12 +39,14 @@ .\" .TH SELECT 2 2021-03-22 "Linux" "Linux Programmer's Manual" .SH NAME -select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO \- +select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO, fd_set \- synchronous I/O multiplexing .SH SYNOPSIS .nf .B #include <sys/select.h> .PP +.BR typedef " /* ... */ " fd_set; +.PP .BI "int select(int " nfds ", fd_set *restrict " readfds , .BI " fd_set *restrict " writefds ", fd_set *restrict " exceptfds , .BI " struct timeval *restrict " timeout ); @@ -93,6 +95,14 @@ or a sufficiently small .BR write (2)) without blocking. .\" +.SS fd_set +A structure type that can represent a set of file descriptors. +According to POSIX, +the maximum number of file descriptors in an +.I fd_set +structure is the value of the macro +.BR FD_SETSIZE . +.\" .SS File descriptor sets The principal arguments of .BR select () @@ -453,7 +463,15 @@ sets the timeout variable before returning, but the BSD variant does not. .BR pselect () is defined in POSIX.1g, and in POSIX.1-2001 and POSIX.1-2008. +.PP +.B fd_set +is defined in POSIX.1-2001 and later. .SH NOTES +The following header also provides the +.I fd_set +type: +.IR <sys/time.h> . +.PP An .I fd_set is a fixed size buffer. diff --git a/man7/system_data_types.7 b/man7/system_data_types.7 index d71a06344..f004aef0d 100644 --- a/man7/system_data_types.7 +++ b/man7/system_data_types.7 @@ -60,27 +60,6 @@ system_data_types \- overview of system data types .\"------------------------------------- div_t ------------------------/ .\"------------------------------------- double_t ---------------------/ .\"------------------------------------- fd_set -----------------------/ -.TP -.I fd_set -.RS -.IR Include : -.IR <sys/select.h> . -Alternatively, -.IR <sys/time.h> . -.PP -A structure type that can represent a set of file descriptors. -According to POSIX, -the maximum number of file descriptors in an -.I fd_set -structure is the value of the macro -.BR FD_SETSIZE . -.PP -.IR "Conforming to" : -POSIX.1-2001 and later. -.PP -.IR "See also" : -.BR select (2) -.RE .\"------------------------------------- fenv_t -----------------------/ .TP .I fenv_t -- 2.33.1
