[purejavacomm] Re: Detect usb cable unplugged?
- From: Kustaa Nyholm <Kustaa.Nyholm@xxxxxxxxxxxx>
- To: "purejavacomm@xxxxxxxxxxxxx" <purejavacomm@xxxxxxxxxxxxx>
- Date: Thu, 21 Nov 2013 12:48:29 +0200
As far as the platform allows/enables PJC read throws an exception if a device
is unplugged.
Which platform you are using?
For Linux and Mac OS X, the inputstream.read() is very thin layer over the
POSIX read()
and if the OS does not return from a read when the device becomes dysfunctional
there
is little that can be done. IIRC in that respect OS X did not behave as it
should.
br Kusti
From: ant elder <ant.elder@xxxxxxxxx<mailto:ant.elder@xxxxxxxxx>>
Reply-To: "purejavacomm@xxxxxxxxxxxxx<mailto:purejavacomm@xxxxxxxxxxxxx>"
<purejavacomm@xxxxxxxxxxxxx<mailto:purejavacomm@xxxxxxxxxxxxx>>
Date: Thu, 21 Nov 2013 12:32:06 +0200
To: "purejavacomm@xxxxxxxxxxxxx<mailto:purejavacomm@xxxxxxxxxxxxx>"
<purejavacomm@xxxxxxxxxxxxx<mailto:purejavacomm@xxxxxxxxxxxxx>>
Subject: [purejavacomm] Detect usb cable unplugged?
Is there any way to have an application notified by PureJavaComm when a usb
serial port is unplugged?
Presently unplugging the cable without first closing the PureJavaComm
SerialPort can cause a hang if a read is done on the still open port. It would
be nice if the application could be notified when the cable is unplugged and so
close the SerialPort, or at least if a read on a SerialPort thats been
unplugged would throw an exception.
...ant
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