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Red Hat Bugzilla – Attachment 622918 Details for
Bug 863754
virtio_serialport data loss when hot-unplugging and re-plugging the port (host->guest)
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guest receiver script (reads the port and verifies A, B, C, D, ... is received correctly. Reopens the port when read fails)
listener.py (text/x-python), 809 bytes, created by
Lukáš Doktor
on 2012-10-07 08:32:59 UTC
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Description:
guest receiver script (reads the port and verifies A, B, C, D, ... is received correctly. Reopens the port when read fails)
Filename:
MIME Type:
Creator:
Lukáš Doktor
Created:
2012-10-07 08:32:59 UTC
Size:
809 bytes
patch
obsolete
>import os, time >hostfile = '/dev/virtio-ports/com.redhat.spice.0' >port = os.open(hostfile, os.O_RDONLY) >data = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" >length=len(data) >i=0 > >while True: > try: > _ = os.read(port, 1) > if _ and _ != data[i]: > err = "" > while _ != data[i]: > err += data[i] > i += 1 > if i >= length: > i = 0 > print "skipped %s (waiting for %s)" % (err, _) > i += 1 > if i >= length: > i = 0 > except Exception, inst: > print "Closing (%s)" % inst > os.close(port) > while True: > try: > os.open(hostfile, os.O_RDONLY) > print "Opened" > break > except: > time.sleep(1) >
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