Class: EventMachine::ProcessWatch

Inherits:
Connection show all
Defined in:
lib/em/process_watch.rb

Overview

This is subclassed from EventMachine::Connection for use with the process monitoring API. Read the documentation on the instance methods of this class, and for a full explanation see EventMachine.watch_process.

Constant Summary

Instance Attribute Summary

Attributes inherited from Connection

signature

Instance Method Summary (collapse)

Methods inherited from Connection

#close_connection, #close_connection_after_writing, #comm_inactivity_timeout, #comm_inactivity_timeout=, #connection_completed, #detach, #error?, #get_idle_time, #get_peer_cert, #get_peername, #get_pid, #get_proxied_bytes, #get_sock_opt, #get_sockname, #get_status, #notify_readable=, #notify_readable?, #notify_writable=, #notify_writable?, #pause, #paused?, #pending_connect_timeout=, #post_init, #proxy_completed, #proxy_incoming_to, #proxy_target_unbound, #resume, #send_data, #send_datagram, #send_file_data, #set_sock_opt, #ssl_handshake_completed, #ssl_verify_peer, #start_tls, #stop_proxying, #stream_file_data, #unbind

Instance Method Details

- (Object) pid

Returns the pid that EventMachine::watch_process was originally called with.



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# File 'lib/em/process_watch.rb', line 22

def pid
  @pid
end

- (Object) process_exited

Should be redefined with the user's custom callback that will be fired when the process exits.

stop_watching is called automatically after this callback



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# File 'lib/em/process_watch.rb', line 35

def process_exited
end

- (Object) process_forked

Should be redefined with the user's custom callback that will be fired when the prcess is forked.

There is currently not an easy way to get the pid of the forked child.



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# File 'lib/em/process_watch.rb', line 29

def process_forked
end

- (Object) stop_watching

Discontinue monitoring of the process. This will be called automatically when a process dies. User code may call it as well.



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# File 'lib/em/process_watch.rb', line 40

def stop_watching
  EventMachine::unwatch_pid(@signature)
end