Use uvloop in FreeBSD

Author: robert

setup.py

@@ -46,7 +46,7 @@
         "web3==4.4.1",
         "lahja==0.9.0",
         "termcolor>=1.1.0,<2.0.0",
-        "uvloop==0.11.2;platform_system=='Linux' or platform_system=='Darwin'",
+        "uvloop==0.11.2;platform_system=='Linux' or platform_system=='Darwin' or platform_system=='FreeBSD'",
         "websockets==5.0.1",
     ],
     'test': [

trinity/__init__.py

@@ -13,7 +13,12 @@
 # This is to ensure we call setup_trace_logging() before anything else.
 import eth as _eth_module  # noqa: F401
 
-if sys.platform in {'darwin', 'linux'}:
+
+def is_uvloop_supported() -> bool:
+    return sys.platform in {'darwin', 'linux'} or sys.platform.startswith('freebsd')
+
+
+if is_uvloop_supported():
     # Set `uvloop` as the default event loop
     import asyncio  # noqa: E402
     import uvloop  # noqa: E402