A failure said while a 9P write waits on it posts no msg, only the write's err

A failure the editor said as it performed a write's work (a Save's disk write, a shell, a language server) was posted as a msg and taken back out when the write's err was logged, which it cannot be once a log follower has read it: a follower saw both. Such a failure is now posted without a msg in the first place (fs.write_waits), and nothing is taken back.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 397f3339..63e7e76a 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -2234,6 +2234,16 @@ test "a buffer whose file was deleted on disk is dirty, and Del asks first" {
     try testing.expect(p.paneBySerial(serial) == null);
 }
 
+test "a failure said while a 9P write waits on it posts no msg, only the write's err" {
+    const p = try withFile(testing.allocator, "x\n");
+    defer p.deinit();
+    p.fs.write_waits = true;
+    p.saveFailed(@intCast(p.active), "/nowhere/zz.txt", error.FileNotFound);
+    p.fs.write_waits = false;
+    try testing.expect(!th.logHas(p, "msg "));
+    try testing.expect(p.fs.late_failure_len > 0);
+}
+
 test "every EINVAL a write gets says why, in its err record too; DEL is a control character in a line" {
     const p = try withFile(testing.allocator, "x\n");
     defer p.deinit();