1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
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)
rescue
sp.close
raise
end
if (block_given?)
begin
yield sp
ensure
sp.close
end
return nil
end
return sp
end
end
|
