From 19109fd9f27e98ae7e18e608d229198bb006d0c8 Mon Sep 17 00:00:00 2001
From: Jannis Harder <me@jix.one>
Date: Fri, 9 Dec 2022 16:24:22 +0100
Subject: [PATCH] jobserver: Only poll non-helper-process jobserver fd when
 ready to read

This avoids SBY going into a busy wait loop in that case.
---
 sbysrc/sby_jobserver.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sbysrc/sby_jobserver.py b/sbysrc/sby_jobserver.py
index 104bcc3..7007c51 100644
--- a/sbysrc/sby_jobserver.py
+++ b/sbysrc/sby_jobserver.py
@@ -287,7 +287,7 @@ class SbyJobClient:
     def poll_fds(self):
         if self.helper_process:
             return [self.response_read_fd]
-        elif self.read_fd is not None:
+        elif self.read_fd is not None and self.has_pending_leases():
             return [self.read_fd]
         else:
             return []