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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2013-06-22 14:16:13 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2014-11-08 22:18:07 (GMT)
commitc606f0866c3a2a5db3ef9bc41738ef33eb9612a9 (patch)
tree5847c644cdfff3c1dd55b88b565448087ae89f11 /src/Platform/SharedVal.h
downloadVeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.zip
VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.tar.gz
Add original TrueCrypt 7.1a sources
Diffstat (limited to 'src/Platform/SharedVal.h')
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1 files changed, 71 insertions, 0 deletions
diff --git a/src/Platform/SharedVal.h b/src/Platform/SharedVal.h
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+/*
+ Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Platform_SharedVal
+#define TC_HEADER_Platform_SharedVal
+
+#include "PlatformBase.h"
+#include "Mutex.h"
+
+namespace TrueCrypt
+{
+ template <class T>
+ class SharedVal
+ {
+ public:
+ SharedVal () { }
+ explicit SharedVal (T value) : Value (value) { }
+ virtual ~SharedVal () { }
+
+ operator T ()
+ {
+ return Get ();
+ }
+
+ T Decrement ()
+ {
+ ValMutex.Lock();
+ T r = --Value;
+ ValMutex.Unlock();
+ return r;
+ }
+
+ T Get ()
+ {
+ ValMutex.Lock();
+ T r = Value;
+ ValMutex.Unlock();
+ return r;
+ }
+
+ T Increment ()
+ {
+ ValMutex.Lock();
+ T r = ++Value;
+ ValMutex.Unlock();
+ return r;
+ }
+
+ void Set (T value)
+ {
+ ValMutex.Lock();
+ Value = value;
+ ValMutex.Unlock();
+ }
+
+ protected:
+ volatile T Value;
+ Mutex ValMutex;
+
+ private:
+ SharedVal (const SharedVal &);
+ SharedVal &operator= (const SharedVal &);
+ };
+}
+
+#endif // TC_HEADER_Platform_SharedVal