lookup localhost ip in precompile bind

not all versions of libzmq support binding to a hostname
JuliaInterop · May 28, 2024 · e98bc8d · e98bc8d
1 parent bae8c69
commit e98bc8d
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/ZMQ.jl b/src/ZMQ.jl
@@ -58,12 +58,14 @@ import PrecompileTools: @compile_workload
 
     s2=Socket(REQ)
 
-    ZMQ.bind(s1, "tcp://localhost:*")
+    # zmq < 4.3.5 can only bind to ip address or network interface, not hostname
+    localhost_ip = Sockets.getaddrinfo("localhost", Sockets.IPv4)
+    ZMQ.bind(s1, "tcp://$(localhost_ip):*")
     # Strip the trailing null-terminator
     last_endpoint = s1.last_endpoint[1:end - 1]
     # Parse the port from the endpoint
     port = parse(Int, split(last_endpoint, ":")[end])
-    ZMQ.connect(s2, "tcp://localhost:$(port)")
+    ZMQ.connect(s2, "tcp://$(localhost_ip):$(port)")
 
     msg = Message("test request")