Class: AngryShell::Shell::IPCState

Inherits:
Struct
  • Object
show all
Defined in:
lib/angry_shell.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ IPCState

Returns a new instance of IPCState.



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# File 'lib/angry_shell.rb', line 103

def initialize
  super(IO.pipe, IO.pipe, IO.pipe, IO.pipe)
end

Instance Attribute Details

#error ⇒ Object Also known as: stderr

Returns the value of attribute error

Returns:

  • (Object) —

    the current value of error



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# File 'lib/angry_shell.rb', line 102

def error
  @error
end

#exception ⇒ Object

Returns the value of attribute exception

Returns:

  • (Object) —

    the current value of exception



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# File 'lib/angry_shell.rb', line 102

def exception
  @exception
end

#read ⇒ Object Also known as: stdout

Returns the value of attribute read

Returns:

  • (Object) —

    the current value of read



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# File 'lib/angry_shell.rb', line 102

def read
  @read
end

#write ⇒ Object

Returns the value of attribute write

Returns:

  • (Object) —

    the current value of write



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# File 'lib/angry_shell.rb', line 102

def write
  @write
end

Instance Method Details

#before_fork! ⇒ Object 



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# File 'lib/angry_shell.rb', line 107

def before_fork!
  exception.last.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC)
end

#child_after_fork! ⇒ Object 



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# File 'lib/angry_shell.rb', line 111

def child_after_fork!
  write.last.close
  STDIN.reopen write.first
  write.first.close

  self.write = STDIN

  read.first.close
  STDOUT.reopen read.last
  read.last.close

  self.read = STDOUT

  error.first.close
  STDERR.reopen error.last
  error.last.close

  self.error = STDERR

  exception.first.close
  self.exception = exception.last

  STDOUT.sync = STDERR.sync = true
end

#close_all ⇒ Object 



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# File 'lib/angry_shell.rb', line 148

def close_all
  [ read, write, error, exception ].flatten.compact.each {|fd| fd.close unless fd.closed?}
end

#parent_after_fork! ⇒ Object 



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# File 'lib/angry_shell.rb', line 136

def parent_after_fork!
  [write.first, read.last, error.last, exception.last].each {|fd| fd.close}

  self.write = write.last
  self.read  = read.first
  self.error = error.first
  self.exception = exception.first
end