From 78b5c1db7720d126d48aa2e6248919bd50c846cf Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Sun, 15 Oct 2023 21:35:13 -0700
Subject: [PATCH] renderer: handle error.NotFound for timer cancellation

Fixes #685

This is expected in very rare scenarios where under heavy load, a timer
could complete before a cancellation request is processed, resulting in
a "not found".
---
 src/renderer/Thread.zig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/renderer/Thread.zig b/src/renderer/Thread.zig
index 90d8c3377..df3001b4e 100644
--- a/src/renderer/Thread.zig
+++ b/src/renderer/Thread.zig
@@ -382,11 +382,13 @@ fn cursorCancelCallback(
     // support different sets of errors, so we just unify it.
     const CancelError = xev.Timer.CancelError || error{
         Canceled,
+        NotFound,
         Unexpected,
     };
 
     _ = r catch |err| switch (@as(CancelError, @errorCast(err))) {
-        error.Canceled => {},
+        error.Canceled => {}, // success
+        error.NotFound => {}, // completed before it could cancel
         else => {
             log.warn("error in cursor cancel callback err={}", .{err});
             unreachable;