Module: Thin::Daemonizable::ClassMethods
- Defined in:
- lib/thin/daemonizing.rb
Instance Method Summary collapse
- #force_kill(pid, pid_file) ⇒ Object
-
#kill(pid_file, timeout = 60) ⇒ Object
Send a QUIT or INT (if timeout is
0
) signal the process which PID is stored inpid_file
. - #read_pid_file(file) ⇒ Object
-
#restart(pid_file) ⇒ Object
Restart the server by sending HUP signal.
-
#send_signal(signal, pid_file, timeout = 60) ⇒ Object
Send a
signal
to the process which PID is stored inpid_file
.
Instance Method Details
#force_kill(pid, pid_file) ⇒ Object
141 142 143 144 145 |
# 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 |
#kill(pid_file, timeout = 60) ⇒ Object
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.
107 108 109 110 111 112 113 |
# 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 |
#read_pid_file(file) ⇒ Object
147 148 149 150 151 152 153 |
# 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(pid_file) ⇒ Object
Restart the server by sending HUP signal.
116 117 118 |
# File 'lib/thin/daemonizing.rb', line 116 def restart(pid_file) send_signal('HUP', pid_file) end |
#send_signal(signal, pid_file, timeout = 60) ⇒ Object
Send a signal
to the process which PID is stored in pid_file
.
121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 |
# 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 |