Class: LIBUSB::Context::Pollfd

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/libusb/context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(fd, events = 0) ⇒ Pollfd

Returns a new instance of Pollfd.



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# File 'lib/libusb/context.rb', line 24

def initialize(fd, events=0)
  @fd, @events = fd, events
end

Instance Attribute Details

#events ⇒ Integer (readonly)

Returns Event flags to poll for.

Returns:

  • (Integer) —

    Event flags to poll for



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# File 'lib/libusb/context.rb', line 44

def events
  @events
end

#fd ⇒ Integer (readonly)

Returns Numeric file descriptor.

Returns:

  • (Integer) —

    Numeric file descriptor



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# File 'lib/libusb/context.rb', line 41

def fd
  @fd
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/libusb/context.rb', line 28

def <=>(other)
  @fd <=> other.fd
end

#inspect ⇒ Object 



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# File 'lib/libusb/context.rb', line 56

def inspect
  "\#<#{self.class} fd:#{@fd}#{' POLLIN' if pollin?}#{' POLLOUT' if pollout?}>"
end

#io ⇒ IO

Returns IO object bound to the file descriptor.

Returns:

  • (IO) —

    IO object bound to the file descriptor.



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# File 'lib/libusb/context.rb', line 33

def io
  rio = IO.new @fd
  # autoclose is available in Ruby-1.9+ only
  rio.autoclose = false if rio.respond_to?( :autoclose= )
  rio
end

#pollin? ⇒ Boolean

Returns True if the file descriptor has to be observed for incoming/readable data.

Returns:

  • (Boolean) —

    True if the file descriptor has to be observed for incoming/readable data



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# File 'lib/libusb/context.rb', line 47

def pollin?
  @events & POLLIN != 0
end

#pollout? ⇒ Boolean

Returns True if the file descriptor has to be observed for outgoing/writeable data.

Returns:

  • (Boolean) —

    True if the file descriptor has to be observed for outgoing/writeable data



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# File 'lib/libusb/context.rb', line 52

def pollout?
  @events & POLLOUT != 0
end