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Wait cleanly for child processes to exit.

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Signed-off-by: David Dollar <ddollar@gmail.com>
This commit is contained in:
Keith Rarick
2010-09-20 12:05:12 -07:00
committed by David Dollar
parent 9cd772ac0f
commit 2a7dadc2b2
1 changed files with 7 additions and 9 deletions
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16
lib/foreman/engine.rb
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@@ -39,8 +39,8 @@ class Foreman::Engine
fork process, options
end
trap("TERM") { kill_and_exit("TERM") }
trap("INT") { kill_and_exit("INT") }
trap("TERM") { kill_all("TERM") }
trap("INT") { kill_all("INT") }
watch_for_termination
end
@@ -48,8 +48,8 @@ class Foreman::Engine
def execute(name, options={})
fork processes[name], options
trap("TERM") { kill_and_exit("TERM") }
trap("INT") { kill_and_exit("INT") }
trap("TERM") { kill_all("TERM") }
trap("INT") { kill_all("INT") }
watch_for_termination
end
@@ -97,18 +97,15 @@ private ######################################################################
rescue PTY::ChildExited, Interrupt
info "process exiting", process
end
Process.waitall
end
end
def kill_and_exit(signal="TERM")
def kill_all(signal="TERM")
info "terminating"
running_processes.each do |pid, process|
info "killing #{process.name} in pid #{pid}"
Process.kill(signal, pid)
end
Process.waitall
exit 0
end
def info(message, process=nil)
@@ -151,7 +148,8 @@ private ######################################################################
pid, status = Process.wait2
process = running_processes.delete(pid)
info "process terminated", process
kill_and_exit
kill_all
Process.waitall
end
def running_processes