From cf1ab8c2f4c083f40afdeeca15c66afc0e05610d Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 8 Jun 2021 10:16:22 +0800
Subject: ...

---
 computer-network-experiment/IO.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'computer-network-experiment/IO.cpp')

diff --git a/computer-network-experiment/IO.cpp b/computer-network-experiment/IO.cpp
index 0c20537..5d3fe12 100644
--- a/computer-network-experiment/IO.cpp
+++ b/computer-network-experiment/IO.cpp
@@ -9,9 +9,10 @@
 
 folly::MPMCQueue<Output> output_queue(100);
 
+namespace {
 folly::CancellationSource cancellation_source;
-
 std::thread io_thread;
+}
 
 void PrintOutput(const Output &output) {
   std::basic_ostream<Char> *stream;
-- 
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