From 962c0e72b41ac7574b901e52fdd29241a41cea0d Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Tue, 28 Jan 2025 10:33:50 -0800
Subject: [PATCH] Clear index requests upon "exit"

to make indexers stop in time. This is especially relevant when there
are many initial index requests.
---
 src/pipeline.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/pipeline.cc b/src/pipeline.cc
index 22debd17..0a8d85ab 100644
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -684,6 +684,14 @@ void mainLoop() {
         path2backlog[ex.path].push_back(&backlog.back());
       }
 
+    // If the "exit" notification has been received, clear all index requests
+    // to make indexers stop in time.
+    if (g_quit.load(std::memory_order_relaxed)) {
+      index_request->apply([&](std::deque<IndexRequest> &q) {
+        q.clear();
+      });
+    }
+
     bool indexed = false;
     for (int i = 20; i--;) {
       std::optional<IndexUpdate> update = on_indexed->tryPopFront();