Use std::atomic for fRequestShutdown and fReopenDebugLog

src/init.cpp

@@ -111,7 +111,7 @@ CClientUIInterface uiInterface; // Declared but not defined in ui_interface.h
 // shutdown thing.
 //
 
-volatile sig_atomic_t fRequestShutdown = false;
+std::atomic<bool> fRequestShutdown(false);
 
 void StartShutdown()
 {

src/util.cpp

@@ -110,7 +110,7 @@ string strMiscWarning;
 bool fLogTimestamps = DEFAULT_LOGTIMESTAMPS;
 bool fLogTimeMicros = DEFAULT_LOGTIMEMICROS;
 bool fLogIPs = DEFAULT_LOGIPS;
-volatile sig_atomic_t fReopenDebugLog = false;
+std::atomic<bool> fReopenDebugLog(false);
 CTranslationInterface translationInterface;
 
 /** Init OpenSSL library multithreading support */

src/util.h

@@ -18,6 +18,7 @@
 #include "tinyformat.h"
 #include "utiltime.h"
 
+#include <atomic>
 #include <exception>
 #include <map>
 #include <stdint.h>
@@ -28,10 +29,6 @@
 #include <boost/signals2/signal.hpp>
 #include <boost/thread/exceptions.hpp>
 
-#ifndef WIN32
-#include <signal.h>
-#endif
-
 static const bool DEFAULT_LOGTIMEMICROS = false;
 static const bool DEFAULT_LOGIPS        = false;
 static const bool DEFAULT_LOGTIMESTAMPS = true;
@@ -53,7 +50,7 @@ extern bool fServer;
 extern std::string strMiscWarning;
 extern bool fLogTimestamps;
 extern bool fLogIPs;
-extern volatile sig_atomic_t fReopenDebugLog;
+extern std::atomic<bool> fReopenDebugLog;
 extern CTranslationInterface translationInterface;
 
 /**