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authorAlejandro Colomar <alx.manpages@gmail.com>2022-09-09 14:15:08 +0200
committerAlejandro Colomar <alx.manpages@gmail.com>2022-09-09 14:15:08 +0200
commit96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c (patch)
tree70686b943e33a6e939ad265acb7ddfef70b91f32 /man/man3/sem_post.3
parent8f4ed6463206e8ede815c72085c7305dafc2e4fc (diff)
downloadman-pages-96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c.tar.gz
Revert "src.mk, All pages: Move man* to man/"
This reverts commit 70ac1c4785fc1e158ab2349a962dba2526bf4fbc. Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/> Reported-by: Petr Vorel <pvorel@suse.cz> Reported-by: Jakub Wilk <jwilk@jwilk.net> Cc: Stefan Puiu <stefan.puiu@gmail.com> Signed-off-by: Alex Colomar <alx.manpages@gmail.com>
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-.\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH SEM_POST 3 2021-03-22 "Linux man-pages (unreleased)"
-.SH NAME
-sem_post \- unlock a semaphore
-.SH LIBRARY
-POSIX threads library
-.RI ( libpthread ", " \-lpthread )
-.SH SYNOPSIS
-.nf
-.B #include <semaphore.h>
-.PP
-.BI "int sem_post(sem_t *" sem );
-.fi
-.SH DESCRIPTION
-.BR sem_post ()
-increments (unlocks) the semaphore pointed to by
-.IR sem .
-If the semaphore's value consequently becomes greater than zero,
-then another process or thread blocked in a
-.BR sem_wait (3)
-call will be woken up and proceed to lock the semaphore.
-.SH RETURN VALUE
-.BR sem_post ()
-returns 0 on success;
-on error, the value of the semaphore is left unchanged,
-\-1 is returned, and
-.I errno
-is set to indicate the error.
-.SH ERRORS
-.TP
-.B EINVAL
-.I sem
-is not a valid semaphore.
-.TP
-.B EOVERFLOW
-.\" Added in POSIX.1-2008 TC1 (Austin Interpretation 213)
-The maximum allowable value for a semaphore would be exceeded.
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.ad l
-.nh
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.BR sem_post ()
-T} Thread safety MT-Safe
-.TE
-.hy
-.ad
-.sp 1
-.SH STANDARDS
-POSIX.1-2001.
-.SH NOTES
-.BR sem_post ()
-is async-signal-safe:
-it may be safely called within a signal handler.
-.SH EXAMPLES
-See
-.BR sem_wait (3)
-and
-.BR shm_open (3).
-.SH SEE ALSO
-.BR sem_getvalue (3),
-.BR sem_wait (3),
-.BR sem_overview (7),
-.BR signal\-safety (7)