From 09253c1c70a2c8946be5be0a0f86fd21461ef598 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 15 Oct 2020 12:32:46 +0200
Subject: [PATCH] mtest: use ProactorEventLoop

This is needed to use asyncio with pipes and processes.
---
 mesonbuild/mtest.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mesonbuild/mtest.py b/mesonbuild/mtest.py
index 91c872f07..6e4ac6ef1 100644
--- a/mesonbuild/mtest.py
+++ b/mesonbuild/mtest.py
@@ -1329,6 +1329,10 @@ def run(options: argparse.Namespace) -> int:
     if options.wrapper:
         check_bin = options.wrapper[0]
 
+    if sys.platform == 'win32':
+        loop = asyncio.ProactorEventLoop()
+        asyncio.set_event_loop(loop)
+
     if check_bin is not None:
         exe = ExternalProgram(check_bin, silent=True)
         if not exe.found():