1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/external_libs/zmq/backend/cython/checkrc.pxd b/scripts/external_libs/zmq/backend/cython/checkrc.pxd
new file mode 100644
index 00000000..3bf69fc3
--- /dev/null
+++ b/scripts/external_libs/zmq/backend/cython/checkrc.pxd
@@ -0,0 +1,23 @@
+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 == 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 -1
+    return 0