summaryrefslogtreecommitdiff
path: root/.config/login.d/02_xdg_runtime_dir.sh
diff options
context:
space:
mode:
authorLuke Shumaker <lshumake@codeaurora.org>2015-06-11 09:05:31 -0600
committerLuke Shumaker <lukeshu@sbcglobal.net>2015-07-19 19:13:56 -0600
commitb780c946dc5d61cd00988a62aa281155ffb89363 (patch)
treedc67207a31dd72ebfa089d3959687b8bc41f8586 /.config/login.d/02_xdg_runtime_dir.sh
parenta9fb80359a3e84ed7b64d3ecdf699acc5e53abc9 (diff)
fix XDG_RUNTIME_DIR management
Diffstat (limited to '.config/login.d/02_xdg_runtime_dir.sh')
-rw-r--r--.config/login.d/02_xdg_runtime_dir.sh17
1 files changed, 9 insertions, 8 deletions
diff --git a/.config/login.d/02_xdg_runtime_dir.sh b/.config/login.d/02_xdg_runtime_dir.sh
index 6700669..864eadd 100644
--- a/.config/login.d/02_xdg_runtime_dir.sh
+++ b/.config/login.d/02_xdg_runtime_dir.sh
@@ -4,22 +4,23 @@
if [ -z "$XDG_RUNTIME_DIR" ] && shopt -q login_shell && type flock &>/dev/null; then
_diy_xdg_runtime_login() {
export XDG_RUNTIME_DIR="$XDG_CACHE_HOME/xdg-runtime-dir/$HOSTNAME"
- # There's a race condition here, between the `ln -s` and `flock`.
- # But it's not like I'll be hammering a box with logins.
- if [ ! -d "$XDG_RUNTIME_DIR" ]; then
- local tmp="$(mktemp -d --tmpdir -- "${USER}@${HOSTNAME}-runtime.XXXXXXXXXX")"
- mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
- ln -sfT -- "$tmp" "$XDG_RUNTIME_DIR"
- fi
if ! [ /dev/fd/7 -ef "$XDG_CACHE_HOME/xdg-runtime-dir/.lock" ]; then
exec 7>"$XDG_CACHE_HOME/xdg-runtime-dir/.lock"
- if flock -sn 7; then
+ if flock -xn 7; then
+ if [ ! -d "$XDG_RUNTIME_DIR" ]; then
+ local tmp="$(mktemp -d --tmpdir -- "${USER}@${HOSTNAME}-runtime.XXXXXXXXXX")"
+ mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
+ ln -sfT -- "$tmp" "$XDG_RUNTIME_DIR"
+ fi
# Unfortunately this doesn't survive across exec(1).
trap _diy_xdg_runtime_logout EXIT
+ flock -sn 7
fi
fi
}
_diy_xdg_runtime_logout() {
+ exec 7>&-
+ exec 7>"$XDG_CACHE_HOME/xdg-runtime-dir/.lock"
if flock -xn 7; then
rm -rf -- "$(readlink "$XDG_RUNTIME_DIR")"
fi