Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 137 insertions, 0 deletions

diff --git a/upstream/mageia-cauldron/man0p/poll.h.0p b/upstream/mageia-cauldron/man0p/poll.h.0p
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+'\" et
+.TH poll.h "0P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.\"
+.SH NAME
+poll.h
+\(em definitions for the poll(\|) function
+.SH SYNOPSIS
+.LP
+.nf
+#include <poll.h>
+.fi
+.SH DESCRIPTION
+The
+.IR <poll.h> 
+header shall define the
+.BR pollfd
+structure, which shall include at least the following members:
+.sp
+.RS 4
+.nf
+
+int    fd       \fRThe following descriptor being polled.\fP
+short  events   \fRThe input event flags (see below).\fP
+short  revents  \fRThe output event flags (see below).\fP
+.fi
+.P
+.RE
+.P
+The
+.IR <poll.h> 
+header shall define the following type through
+.BR typedef :
+.IP "\fBnfds_t\fR" 14
+An unsigned integer type used for the number of file descriptors.
+.P
+The implementation shall support one or more programming environments
+in which the width of
+.BR nfds_t
+is no greater than the width of type
+.BR long .
+The names of these programming environments can be obtained using the
+\fIconfstr\fR()
+function or the
+.IR getconf
+utility.
+.P
+The
+.IR <poll.h> 
+header shall define the following symbolic constants, zero or more of
+which may be OR'ed together to form the
+.IR events
+or
+.IR revents
+members in the
+.BR pollfd
+structure:
+.IP POLLIN 14
+Data other than high-priority data may be read without blocking.
+.IP POLLRDNORM 14
+Normal data may be read without blocking.
+.IP POLLRDBAND 14
+Priority data may be read without blocking.
+.IP POLLPRI 14
+High priority data may be read without blocking.
+.IP POLLOUT 14
+Normal data may be written without blocking.
+.IP POLLWRNORM 14
+Equivalent to POLLOUT.
+.IP POLLWRBAND 14
+Priority data may be written.
+.IP POLLERR 14
+An error has occurred (\c
+.IR revents
+only).
+.IP POLLHUP 14
+Device has been disconnected (\c
+.IR revents
+only).
+.IP POLLNVAL 14
+Invalid
+.IR fd
+member (\c
+.IR revents
+only).
+.P
+The significance and semantics of normal, priority, and high-priority
+data are file and device-specific.
+.P
+The following shall be declared as a function and may also be defined
+as a macro. A function prototype shall be provided.
+.sp
+.RS 4
+.nf
+
+int   poll(struct pollfd [], nfds_t, int);
+.fi
+.P
+.RE
+.LP
+.IR "The following sections are informative."
+.SH "APPLICATION USAGE"
+None.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+The System Interfaces volume of POSIX.1\(hy2017,
+.IR "\fIconfstr\fR\^(\|)",
+.IR "\fIpoll\fR\^(\|)"
+.P
+The Shell and Utilities volume of POSIX.1\(hy2017,
+.IR "\fIgetconf\fR\^"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group.
+In the event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .