module Eye::Process::Children

Public Instance Methods

add_children() click to toggle source
# File lib/eye/process/children.rb, line 3
def add_children
  add_or_update_children
end
add_or_update_children() click to toggle source
# File lib/eye/process/children.rb, line 7
def add_or_update_children
  return unless self[:monitor_children]
  return unless self.up?
  return if @updating_children
  @updating_children = true

  unless self.pid
    warn "can't add children; pid not set"
    return
  end

  now_children = Eye::SystemResources.children(self.pid)
  new_children = []
  exist_children = []

  now_children.each do |child_pid|
    if self.children[child_pid]
      exist_children << child_pid
    else
      new_children << child_pid
    end
  end

  removed_children = self.children.keys - now_children

  if new_children.present?
    new_children.each do |child_pid|
      cfg = self[:monitor_children].try :update, notify: self[:notify]
      self.children[child_pid] = Eye::ChildProcess.new(child_pid, cfg, logger.prefix, current_actor)
    end
  end

  if removed_children.present?
    removed_children.each { |child_pid| remove_child(child_pid) }
  end

  h = { new: new_children.size, removed: removed_children.size, exists: exist_children.size }
  debug { "children info: #{h.inspect}" }

  @updating_children = false
  h
end
clear_child(child_pid) click to toggle source
# File lib/eye/process/children.rb, line 59
def clear_child(child_pid)
  child = self.children.delete(child_pid)
  child.destroy if child && child.alive?
end
remove_child(child_pid) click to toggle source
# File lib/eye/process/children.rb, line 55
def remove_child(child_pid)
  clear_child(child_pid)
end
remove_children() click to toggle source
# File lib/eye/process/children.rb, line 50
def remove_children
  # here should .keys (not each_key), as it copy array of keys
  children.keys.each { |child_pid| clear_child(child_pid) }
end