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require 'thread'
pid_file = ARGV.shift
scenario = ARGV.shift
# We must do this first otherwise there will be a race with the process that
# creates this process and the TERM signal below could go to that process
# instead, which will likely abort the specs process.
Process.setsid if scenario
mutex = Mutex.new
Signal.trap(:TERM) do
if mutex.try_lock
STDOUT.puts "signaled"
STDOUT.flush
$signaled = true
end
end
File.open(pid_file, "wb") { |f| f.puts Process.pid }
if scenario
# We are sending a signal to the process group
process = "Process.getpgrp"
case scenario
when "self"
signal = %["SIGTERM"]
process = "0"
when "group_numeric"
signal = %[-Signal.list["TERM"]]
when "group_short_string"
signal = %["-TERM"]
when "group_full_string"
signal = %["-SIGTERM"]
else
raise "unknown scenario: #{scenario.inspect}"
end
code = "Process.kill(#{signal}, #{process})"
system(ENV["RUBY_EXE"], *ENV["RUBY_FLAGS"].split(' '), "-e", code)
end
sleep 0.001 until mutex.locked? and $signaled
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