Class: Process::Group::Fork

Inherits:
Command
  • Object
show all
Defined in:
lib/process/group.rb

Overview

Runs a given block using a forked process.

Instance Attribute Summary

Attributes inherited from Command

#options, #pid

Instance Method Summary collapse

Methods inherited from Command

#foreground?, #kill

Constructor Details

#initialize(block, **options) ⇒ Fork

Returns a new instance of Fork.



78
79
80
81
82
 
# File 'lib/process/group.rb', line 78

def initialize(block, **options)
  @block = block
  
  super(**options)
end

Instance Method Details

#call(**options) ⇒ Object 



84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/process/group.rb', line 84

def call(**options)
  options = @options.merge(options)
  
  @pid = Process.fork(&@block)
  
  if options[:pgroup] == true
    # Establishes the child process as a process group leader:
    Process.setpgid(@pid, 0)
  elsif pgroup = options[:pgroup]
    # Set this process as part of the existing process group:
    Process.setpgid(@pid, pgroup)
  end
  
  return @pid
end

#resume(*arguments) ⇒ Object 



100
101
102
 
# File 'lib/process/group.rb', line 100

def resume(*arguments)
  @fiber.resume(*arguments)
end