# File lib/thin/daemonizing.rb, line 141 def force_kill(pid, pid_file) Logging.log_info "Sending KILL signal to process #{pid} ... " Process.kill("KILL", pid) File.delete(pid_file) if File.exist?(pid_file) end
Send a QUIT or INT (if timeout is 0) signal the process which PID is stored in pid_file. If the process is still running after timeout, KILL signal is sent.
# File lib/thin/daemonizing.rb, line 107 def kill(pid_file, timeout=60) if timeout == 0 send_signal('INT', pid_file, timeout) else send_signal('QUIT', pid_file, timeout) end end
# File lib/thin/daemonizing.rb, line 147 def read_pid_file(file) if File.file?(file) && pid = File.read(file) pid.to_i else nil end end
Restart the server by sending HUP signal.
# File lib/thin/daemonizing.rb, line 116 def restart(pid_file) send_signal('HUP', pid_file) end
Send a signal to the process which PID is stored in pid_file.
# File lib/thin/daemonizing.rb, line 121 def send_signal(signal, pid_file, timeout=60) if pid = read_pid_file(pid_file) Logging.log_info "Sending #{signal} signal to process #{pid} ... " Process.kill(signal, pid) Timeout.timeout(timeout) do sleep 0.1 while Process.running?(pid) end else raise PidFileNotFound, "Can't stop process, no PID found in #{pid_file}" end rescue Timeout::Error Logging.log_info "Timeout!" force_kill(pid, pid_file) rescue Interrupt force_kill(pid, pid_file) rescue Errno::ESRCH # No such process Logging.log_info "process not found!" force_kill(pid, pid_file) end
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