add ctor with std::pair argument

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@705 7ec92016-0320-0410-acc4-a06ded1c099a

include/loki/LockingPtr.h

@@ -47,6 +47,18 @@ namespace Loki
             mutex.Lock();
         }
 
+        typedef typename std::pair<volatile ConstOrNotType *, LockingPolicy *> Pair;
+
+        /** Constructor locks mutex associated with an object.
+         @param lockpair a std::pair of pointers to the object and the mutex
+         */
+        LockingPtr( Pair lockpair )
+           : pObject_( const_cast< SharedObject * >( lockpair.first ) ),
+            pMutex_( lockpair.second )
+        {
+            lockpair.second->Lock();
+        }
+
         /// Destructor unlocks the mutex.
         ~LockingPtr()
         {
@@ -91,6 +103,9 @@ namespace Loki
 
 
 // $Log$
+// Revision 1.12  2006/10/11 08:51:40  syntheticpp
+// add ctor with std::pair argument
+//
 // Revision 1.11  2006/03/08 18:22:42  syntheticpp
 // doxygen fixes
 //

test/LockingPtr/main.cpp

@@ -124,6 +124,16 @@ int main ()
     Thread::JoinThreads(threads);
     Thread::DeleteThreads(threads);
 
+    
+    // test pair ctor
+    volatile A a;
+    Loki::Mutex m;
+    UserLockingPtr::Pair pair(&a,&m);    
+    UserLockingPtr l( pair );
+    
+    ConstUserLockingPtr::Pair cpair(&a,&m);    
+    ConstUserLockingPtr cl( cpair );
+
 }