1 files changed, 52 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/zmq/backend/cffi/_poll.py b/external_libs/python/pyzmq-14.7.0/zmq/backend/cffi/_poll.py
new file mode 100644
index 00000000..941b0801
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/zmq/backend/cffi/_poll.py
@@ -0,0 +1,52 @@
+# coding: utf-8
+"""zmq poll function"""
+
+# Copyright (C) PyZMQ Developers
+# Distributed under the terms of the Modified BSD License.
+
+from ._cffi import C, ffi
+from .utils import _retry_sys_call
+
+
+def _make_zmq_pollitem(socket, flags):
+    zmq_socket = socket._zmq_socket
+    zmq_pollitem = ffi.new('zmq_pollitem_t*')
+    zmq_pollitem.socket = zmq_socket
+    zmq_pollitem.fd = 0
+    zmq_pollitem.events = flags
+    zmq_pollitem.revents = 0
+    return zmq_pollitem[0]
+
+def _make_zmq_pollitem_fromfd(socket_fd, flags):
+    zmq_pollitem = ffi.new('zmq_pollitem_t*')
+    zmq_pollitem.socket = ffi.NULL
+    zmq_pollitem.fd = socket_fd
+    zmq_pollitem.events = flags
+    zmq_pollitem.revents = 0
+    return zmq_pollitem[0]
+
+def zmq_poll(sockets, timeout):
+    cffi_pollitem_list = []
+    low_level_to_socket_obj = {}
+    for item in sockets:
+        if isinstance(item[0], int):
+            low_level_to_socket_obj[item[0]] = item
+            cffi_pollitem_list.append(_make_zmq_pollitem_fromfd(item[0], item[1]))
+        else:
+            low_level_to_socket_obj[item[0]._zmq_socket] = item
+            cffi_pollitem_list.append(_make_zmq_pollitem(item[0], item[1]))
+    items = ffi.new('zmq_pollitem_t[]', cffi_pollitem_list)
+    list_length = ffi.cast('int', len(cffi_pollitem_list))
+    c_timeout = ffi.cast('long', timeout)
+    _retry_sys_call(C.zmq_poll, items, list_length, c_timeout)
+    result = []
+    for index in range(len(items)):
+        if not items[index].socket == ffi.NULL:
+            if items[index].revents > 0:
+                result.append((low_level_to_socket_obj[items[index].socket][0],
+                            items[index].revents))
+        else:
+            result.append((items[index].fd, items[index].revents))
+    return result
+
+__all__ = ['zmq_poll']