From 14c6648c71b4b8a12ac0905ff23fcd4de7f0556f Mon Sep 17 00:00:00 2001
From: Oliver Reiche <oliver.reiche@huawei.com>
Date: Mon, 13 Jun 2022 13:30:13 +0200
Subject: multithreading: Add AtomicValue to atomically set/get value

... and use it to replace the commonly used pattern in
Expression, LinkedMap, and GitTreeEntry. Furthermore, remove
assignment operators for Expression and LinkedMap as those
are considered to be used in an immutable manner anyway.
---
 src/buildtool/file_system/git_tree.hpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'src/buildtool/file_system/git_tree.hpp')

diff --git a/src/buildtool/file_system/git_tree.hpp b/src/buildtool/file_system/git_tree.hpp
index 8371d785..ff7dc828 100644
--- a/src/buildtool/file_system/git_tree.hpp
+++ b/src/buildtool/file_system/git_tree.hpp
@@ -8,7 +8,7 @@
 #include "gsl-lite/gsl-lite.hpp"
 #include "src/buildtool/file_system/git_cas.hpp"
 #include "src/buildtool/file_system/object_type.hpp"
-#include "src/utils/cpp/atomic.hpp"
+#include "src/buildtool/multithreading/atomic_value.hpp"
 #include "src/utils/cpp/hex_string.hpp"
 
 class GitTreeEntry;
@@ -85,8 +85,7 @@ class GitTreeEntry {
     gsl::not_null<GitCASPtr> cas_;
     std::string raw_id_;
     ObjectType type_;
-    mutable atomic_shared_ptr<std::optional<GitTree>> tree_cached_{nullptr};
-    mutable std::atomic<bool> tree_loading_{false};
+    AtomicValue<std::optional<GitTree>> tree_cached_{};
 };
 
 using GitTreePtr = std::shared_ptr<GitTree const>;
-- 
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