From ffdcf33364ebfdc1829cb7c7eea6ae4c908d12f1 Mon Sep 17 00:00:00 2001
From: Nat Goodspeed <nat@lindenlab.com>
Date: Wed, 12 Jun 2024 16:42:39 -0400
Subject: Extract TempSet from llcallbacklist.cpp into its own tempset.h.

---
 indra/llcommon/CMakeLists.txt     |  1 +
 indra/llcommon/llcallbacklist.cpp | 27 +-------------------------
 indra/llcommon/tempset.h          | 41 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+), 26 deletions(-)
 create mode 100755 indra/llcommon/tempset.h

(limited to 'indra')

diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index d5440d6bc8..20670d7ebe 100644
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -259,6 +259,7 @@ set(llcommon_HEADER_FILES
     lualistener.h
     stdtypes.h
     stringize.h
+    tempset.h
     threadpool.h
     threadpool_fwd.h
     threadsafeschedule.h
diff --git a/indra/llcommon/llcallbacklist.cpp b/indra/llcommon/llcallbacklist.cpp
index 015475a903..555c793333 100644
--- a/indra/llcommon/llcallbacklist.cpp
+++ b/indra/llcommon/llcallbacklist.cpp
@@ -29,6 +29,7 @@
 #include "llerror.h"
 #include "llexception.h"
 #include "llsdutil.h"
+#include "tempset.h"
 #include <boost/container_hash/hash.hpp>
 #include <iomanip>
 #include <vector>
@@ -292,32 +293,6 @@ void Timers::setTimeslice(F32 timeslice)
     }
 }
 
-// RAII class to set specified variable to specified value
-// only for the duration of containing scope
-template <typename VAR, typename VALUE>
-class TempSet
-{
-public:
-    TempSet(VAR& var, const VALUE& value):
-        mVar(var),
-        mOldValue(mVar)
-    {
-        mVar = value;
-    }
-
-    TempSet(const TempSet&) = delete;
-    TempSet& operator=(const TempSet&) = delete;
-
-    ~TempSet()
-    {
-        mVar = mOldValue;
-    }
-
-private:
-    VAR& mVar;
-    VALUE mOldValue;
-};
-
 bool Timers::tick()
 {
     // Fetch current time only on entry, even though running some mQueue task
diff --git a/indra/llcommon/tempset.h b/indra/llcommon/tempset.h
new file mode 100755
index 0000000000..e1496bd5fc
--- /dev/null
+++ b/indra/llcommon/tempset.h
@@ -0,0 +1,41 @@
+/**
+ * @file   tempset.h
+ * @author Nat Goodspeed
+ * @date   2024-06-12
+ * @brief  Temporarily override a variable for scope duration, then restore
+ * 
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Copyright (c) 2024, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+#if ! defined(LL_TEMPSET_H)
+#define LL_TEMPSET_H
+
+// RAII class to set specified variable to specified value
+// only for the duration of containing scope
+template <typename VAR, typename VALUE>
+class TempSet
+{
+public:
+    TempSet(VAR& var, const VALUE& value):
+        mVar(var),
+        mOldValue(mVar)
+    {
+        mVar = value;
+    }
+
+    TempSet(const TempSet&) = delete;
+    TempSet& operator=(const TempSet&) = delete;
+
+    ~TempSet()
+    {
+        mVar = mOldValue;
+    }
+
+private:
+    VAR& mVar;
+    VALUE mOldValue;
+};
+
+#endif /* ! defined(LL_TEMPSET_H) */
-- 
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