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require "serialport.so"
class SerialPort
private_class_method(:create)
# Creates a serial port object.
#
# <tt>port</tt> may be a port number
# or the file name of a defice.
# The number is portable; so 0 is mapped to "COM1" on Windows,
# "/dev/ttyS0" on Linux, "/dev/cuaa0" on Mac OS X, etc.
#
# <tt>params</tt> can be used to configure the serial port.
# See SerialPort#set_modem_params for details
def SerialPort::new(port, *params)
sp = create(port)
begin
sp.set_modem_params(*params)
rescue
sp.close
raise
end
return sp
end
# This behaves like SerialPort#new, except that you can pass a block
# to which the new serial port object will be passed. In this case
# the connection is automaticaly closed when the block has finished.
def SerialPort::open(port, *params)
sp = create(port)
begin
sp.set_modem_params(*params)
if (block_given?)
yield sp
sp.close
return nil
end
rescue
sp.close
raise
end
return sp
end
end
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