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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2013-06-22 16:16:13 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2014-11-08 23:18:07 +0100 |
| commit | c606f0866c3a2a5db3ef9bc41738ef33eb9612a9 (patch) | |
| tree | 5847c644cdfff3c1dd55b88b565448087ae89f11 /src/Platform/SharedVal.h | |
| download | VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.tar.gz VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.zip | |
Add original TrueCrypt 7.1a sources
Diffstat (limited to 'src/Platform/SharedVal.h')
| -rw-r--r-- | src/Platform/SharedVal.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/Platform/SharedVal.h b/src/Platform/SharedVal.h new file mode 100644 index 00000000..64298f0d --- /dev/null +++ b/src/Platform/SharedVal.h @@ -0,0 +1,71 @@ +/*
+ 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
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