Vendor the "simple-network" library

1 files changed, 46 insertions, 0 deletions

diff --git a/network/zmqglib.py b/network/zmqglib.py
new file mode 100644
index 0000000..8334235
--- /dev/null
+++ b/network/zmqglib.py
@@ -0,0 +1,46 @@
+import zmq
+
+from gi.repository import GLib
+
+READ_EVENTS = (
+    GLib.IOCondition.IN |
+    GLib.IOCondition.HUP |
+    GLib.IOCondition.ERR
+)
+
+class ZMQSource(GLib.Source):
+    def set_socket(self, sock):
+        self.sock = sock
+
+        fd = sock.getsockopt(zmq.FD)
+        self.poll_fd = GLib.PollFD(
+            fd=fd,
+            events=READ_EVENTS,
+        )
+        self.add_poll(self.poll_fd)
+
+    def prepare(self):
+        return (False, -1)
+
+    def check(self):
+        if not self.poll_fd.revents:
+            return False
+
+        events = self.sock.getsockopt(zmq.EVENTS)
+        return bool(events & zmq.POLLIN)
+
+    def dispatch(self, callback, user_data):
+        try:
+            while True:
+                data = self.sock.recv(zmq.NOBLOCK)
+                callback(self.sock, data, *user_data)
+        except zmq.ZMQError as e:
+            if e.errno != zmq.EAGAIN:
+                raise
+        return True
+_ZMQSource = ZMQSource
+
+def ZMQSource(sock):
+    s = _ZMQSource()
+    s.set_socket(sock)
+    return s