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from libc.errno cimport EINTR, EAGAIN
from cpython cimport PyErr_CheckSignals
from libzmq cimport zmq_errno, ZMQ_ETERM
cdef inline int _check_rc(int rc) except -1:
"""internal utility for checking zmq return condition
and raising the appropriate Exception class
"""
cdef int errno = zmq_errno()
PyErr_CheckSignals()
if rc < 0:
if errno == EINTR:
from zmq.error import InterruptedSystemCall
raise InterruptedSystemCall(errno)
elif errno == EAGAIN:
from zmq.error import Again
raise Again(errno)
elif errno == ZMQ_ETERM:
from zmq.error import ContextTerminated
raise ContextTerminated(errno)
else:
from zmq.error import ZMQError
raise ZMQError(errno)
return 0
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