public void _01_DisposeMechanismTest()
{
if (Platform.UnmanagedLongSize != 8 || Platform.StructPackingSize != 1)
Assert.Inconclusive("Test cannot be executed on this platform");
byte[] parameter = new byte[8];
System.Random rng = new Random();
rng.NextBytes(parameter);
// Unmanaged memory for mechanism parameter stored in low level CK_MECHANISM struct
// is allocated by constructor of Mechanism class.
Mechanism mechanism1 = new Mechanism(CKM.CKM_DES_CBC, parameter);
// Do something interesting with mechanism
// This unmanaged memory is freed by Dispose() method.
mechanism1.Dispose();
// Mechanism class can be used in using statement which defines a scope
// at the end of which an object will be disposed (and unmanaged memory freed).
using (Mechanism mechanism2 = new Mechanism(CKM.CKM_DES_CBC, parameter))
{
// Do something interesting with mechanism
}
#pragma warning disable 0219
// Explicit calling of Dispose() method can also be ommitted
// and this is the prefered way how to use Mechanism class.
Mechanism mechanism3 = new Mechanism(CKM.CKM_DES_CBC, parameter);
// Do something interesting with mechanism
// Dispose() method will be called (and unmanaged memory freed) by GC eventually
// but we cannot be sure when will this occur.
#pragma warning restore 0219
}
