From f71b8d4f57371761dc0a8ae5fb531ee75ca732a3 Mon Sep 17 00:00:00 2001 From: Sean Cross Date: Sat, 20 Apr 2019 17:28:26 +0800 Subject: [PATCH] litex_server: check socket flags exist before using them Some flags are only available on certain platforms. Verify these flags exist prior to using them when opening a socket. See https://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t for more information Signed-off-by: Sean Cross --- litex/tools/litex_server.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/litex/tools/litex_server.py b/litex/tools/litex_server.py index 702f03491..1dfd2b2e9 100755 --- a/litex/tools/litex_server.py +++ b/litex/tools/litex_server.py @@ -21,8 +21,13 @@ class RemoteServer(EtherboneIPC): def open(self): if hasattr(self, "socket"): return + socket_flags = 0 + if hasattr(socket, "SO_REUSEADDR"): + socket_flags = socket_flags | socket.SO_REUSEADDR + if hasattr(socket, "SO_REUSEPORT"): + socket_flags = socket_flags | socket.SO_REUSEPORT self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1) + self.socket.setsockopt(socket.SOL_SOCKET, socket_flags, 1) self.socket.bind((self.bind_ip, self.bind_port)) print("tcp port: {:d}".format(self.bind_port)) self.socket.listen(1)