From 34a77f7822126263fed5c72aedaa65b58fee94ac Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Mon, 07 Dec 2015 12:07:15 -0500
Subject: Merge branch 'feature/use-shld'

---
(limited to 'lib/mutex.sh')

diff --git a/lib/mutex.sh b/lib/mutex.sh
deleted file mode 100644
index fb96e66..0000000
--- a/lib/mutex.sh
+++ /dev/null
@@ -1,57 +0,0 @@
-# Functions for locking and unlocking mutex objects
-#
-# Copyright (C) 2014  Patrick "P. J." McDermott
-#
-# This file is part of the ProteanOS Development Kit.
-#
-# The ProteanOS Development Kit is free software: you can redistribute
-# it and/or modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation, either version 3 of the
-# License, or (at your option) any later version.
-#
-# The ProteanOS Development Kit is distributed in the hope that it
-# will be useful, but WITHOUT ANY WARRANTY; without even the implied
-# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with the ProteanOS Development Kit.  If not, see
-# <http://www.gnu.org/licenses/>.
-
-[ "x${_MUTEX_SM+set}" = 'xset' ] && return 0
-_MUTEX_SM=1
-
-mutex_trylock()
-{
-	local mutex="${1}"
-
-	(set -C; printf '%d\n' "${$}" >"${mutex}") 2>/dev/null
-}
-
-mutex_timedlock()
-{
-	local mutex="${1}"
-	local timeout="${2}"
-
-	while ! mutex_trylock "${mutex}"; do
-		[ ${timeout} -eq 0 ] && return 1
-		timeout=$(($timeout - 1))
-		sleep 1
-	done
-
-	return 0
-}
-
-mutex_unlock()
-{
-	local mutex="${1}"
-
-	rm "${mutex}"
-}
-
-mutex_is_unlockable()
-{
-	local mutex="${1}"
-
-	[ "x$(cat "${mutex}" 2>/dev/null)" = "x${$}" ]
-}
--
cgit v0.9.1