[issue1755388] Problem with socket.gethostbyaddr() and KeyboardInterrupt
STINNER Victor
report at bugs.python.org
Tue Sep 9 14:02:55 CEST 2008
STINNER Victor <victor.stinner at haypocalc.com> added the comment:
Using gdb, I dig the problem:
* when CTRL+c is pressed, signal_handler (sig_num=2)
at ./Modules/signalmodule.c:175 is called
* signal_handler() stores the signal has a "pending call"
* Linux kernel interrupts its name resolution (it looks like it's the
read() syscall?) and return the error ETIMEDOUT (110)
* back to socket_gethostbyaddr(): result=110, h=NULL
* gethost_common() set an error using set_herror(1)
* socket_gethostbyaddr() return NULL
Later, Py_MakePendingCalls() will call signal_default_int_handler()
which raises the KeyboardInterrupt.
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<http://bugs.python.org/issue1755388>
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