Insert a SmartMutex templated class into the class hierarchy, which takes a template parameter specifying whether this mutex

should become a no-op when not running in multithreaded mode.  Make sys::Mutex a typedef of SmartMutex<false>, to preserve source compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73709 91177308-0d34-0410-b5e6-96231b3b80d8

lib/System/Unix/Mutex.inc

@@ -20,28 +20,28 @@ namespace llvm
 {
 using namespace sys;
 
-Mutex::Mutex( bool recursive)
+MutexImpl::MutexImpl( bool recursive)
 {
 }
 
-Mutex::~Mutex()
+MutexImpl::~MutexImpl()
 {
 }
 
 bool 
-Mutex::acquire()
+MutexImpl::MutexImpl()
 {
   return true;
 }
 
 bool 
-Mutex::release()
+MutexImpl::release()
 {
   return true;
 }
 
 bool 
-Mutex::tryacquire( void )
+MutexImpl::tryacquire( void )
 {
   return true;
 }