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make the wait for a card abortable by ctrl-c 

git-svn-id: svn+ssh://localhost/home/henryk/svn/cyberflex-shell/trunk@74 f711b948-2313-0410-aaa9-d29f33439f0b
This commit is contained in:
hploetz 2006-05-22 05:20:11 +00:00
parent 4f99f3a507
commit c100297855
1 changed files with 15 additions and 2 deletions
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17
cyberflex-shell.py
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@ -86,13 +86,26 @@ class Cyberflex_Shell(Shell):
if not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT:
print "Please insert card ..."
last_was_mute = False
while not newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT \
or newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
newState = pycsc.getStatusChange(ReaderStates=[{'Reader': readerName, 'CurrentState':newState[0]['EventState']}])
try:
newState = pycsc.getStatusChange(ReaderStates=[
{'Reader': readerName, 'CurrentState':newState[0]['EventState']}
], Timeout = 100
) ## 100 ms latency from Ctrl-C to abort should be almost unnoticeable by the user
except pycsc.PycscException, e:
if e.args[0] == 'Command timeout.': pass ## ugly
else: raise
if newState[0]['EventState'] & pycsc.SCARD_STATE_MUTE:
print "Card is mute, please retry ..."
if not last_was_mute:
print "Card is mute, please retry ..."
last_was_mute = True
else:
last_was_mute = False
print "Card present: %s" % ((newState[0]['EventState'] & pycsc.SCARD_STATE_PRESENT) and "yes" or "no")