source: common/run-in-cgroup.sh@ 9a09336

trunk
Last change on this file since 9a09336 was 249d4ad, checked in by Pierre Labastie <pierre.labastie@…>, 13 months ago

Fix (again) the run-in-cgroup.sh script

When using "sh << EOF", what is between this line and EOF runs
with no attached terminal. But we need a terminal for running the
build. So we have to use "sh -c ". But then nesting of double
quotes, $, etc is too complicated. So run as root, and become back
user only when exec'ing. For some reason $@ does not work, so use
a variable set to $@.

  • Property mode set to 100755
File size: 1.1 KB
Line 
1#!/bin/bash
2
3if [ -z "$CPUSPEC" ] || [ "$#" -lt 1 ]; then
4 echo "usage: CPUSPEC=... $0 command"
5 exit 1
6fi
7
8ARGS="$@"
9
10set +e
11
12if type systemd-run >/dev/null 2>&1 ; then # systemd
13 sudo systemd-run -G --pty -d --uid=$(whoami) \
14 -p AllowedCPUs="$CPUSPEC" \
15 --slice "user-$(whoami).slice" \
16 "$@"
17elif type loginctl >/dev/null 2>&1 ; then #elogind
18 sudo mkdir /sys/fs/cgroup/jhalfs
19 sudo sh -c "echo +cpuset > /sys/fs/cgroup/cgroup.subtree_control"
20 (
21 sudo sh -c "echo $BASHPID > /sys/fs/cgroup/jhalfs/cgroup.procs"
22 sudo sh -c "
23 SESS_CGROUP=/sys/fs/cgroup/\$XDG_SESSION_ID
24 echo $CPUSPEC > \$SESS_CGROUP/cpuset.cpus
25 ( echo \$BASHPID > \$SESS_CGROUP/cgroup.procs &&
26 exec sudo -u $(whoami) $ARGS )"
27 )
28 sudo rmdir /sys/fs/cgroup/jhalfs
29else # no session manager
30 sudo mkdir /sys/fs/cgroup/jhalfs
31 sudo sh -c "echo +cpuset > /sys/fs/cgroup/cgroup.subtree_control"
32 sudo sh -c "echo \"$CPUSPEC\" > /sys/fs/cgroup/jhalfs/cpuset.cpus"
33 (sudo sh -c "echo $BASHPID > /sys/fs/cgroup/jhalfs/cgroup.procs" &&
34 exec "$@")
35 sudo rmdir /sys/fs/cgroup/jhalfs
36fi
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