Adding upstream version 4.22.0.upstream/4.22.0

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

1 files changed, 105 insertions, 0 deletions

diff --git a/upstream/archlinux/man3p/sem_close.3p b/upstream/archlinux/man3p/sem_close.3p
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+'\" et
+.TH SEM_CLOSE "3P" 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
+sem_close
+\(em close a named semaphore
+.SH SYNOPSIS
+.LP
+.nf
+#include <semaphore.h>
+.P
+int sem_close(sem_t *\fIsem\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIsem_close\fR()
+function shall indicate that the calling process is finished using
+the named semaphore indicated by
+.IR sem .
+The effects of calling
+\fIsem_close\fR()
+for an unnamed semaphore (one created by
+\fIsem_init\fR())
+are undefined. The
+\fIsem_close\fR()
+function shall deallocate (that is, make available for reuse by a
+subsequent
+\fIsem_open\fR()
+by this process) any system resources allocated by the system for use
+by this process for this semaphore. The effect of subsequent use of the
+semaphore indicated by
+.IR sem
+by this process is undefined. If any threads in the calling process are
+currently blocked on the semaphore, the behavior is undefined.
+If the semaphore has not been removed with a successful call to
+\fIsem_unlink\fR(),
+then
+\fIsem_close\fR()
+has no effect on the state of the semaphore. If the
+\fIsem_unlink\fR()
+function has been successfully invoked for
+.IR name
+after the most recent call to
+\fIsem_open\fR()
+with O_CREAT for this semaphore,
+then when all processes that have opened the semaphore close it, the
+semaphore is no longer accessible.
+.SH "RETURN VALUE"
+Upon successful completion, a value of zero shall be returned.
+Otherwise, a value of \-1 shall be returned and
+.IR errno
+set to indicate the error.
+.SH ERRORS
+The
+\fIsem_close\fR()
+function may fail if:
+.TP
+.BR EINVAL
+The
+.IR sem
+argument is not a valid semaphore descriptor.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+None.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIsemctl\fR\^(\|)",
+.IR "\fIsemget\fR\^(\|)",
+.IR "\fIsemop\fR\^(\|)",
+.IR "\fIsem_init\fR\^(\|)",
+.IR "\fIsem_open\fR\^(\|)",
+.IR "\fIsem_unlink\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<semaphore.h>\fP"
+.\"
+.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 .