[Plugin/Process] Use std::call_once() to initialize.

This replaces the home-grown initialization mechanism used before.

Differential Revision:  http://reviews.llvm.org/D8760	

llvm-svn: 233999

1 files changed, 3 insertions, 4 deletions

diff --git a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
index 55964350b39..00cbb20aa81 100644
--- a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -2958,16 +2958,15 @@ ProcessGDBRemote::KillDebugserverProcess ()
 void
 ProcessGDBRemote::Initialize()
 {
-    static bool g_initialized = false;
+    static std::once_flag g_once_flag;
 
-    if (g_initialized == false)
+    std::call_once(g_once_flag, []()
     {
-        g_initialized = true;
         PluginManager::RegisterPlugin (GetPluginNameStatic(),
                                        GetPluginDescriptionStatic(),
                                        CreateInstance,
                                        DebuggerInitialize);
-    }
+    });
 }
 
 void