public static void WriteDA <T>(EnsureAllowedDisposeState ensureAllowedDisposeState, Func <bool> isDisposed, ref T location, T value, T comparand, out bool result)
where T : class
{
//
T exchangeResult;
bool locResult;
ensureAllowedDisposeState(considerDisposeRequest: true);
exchangeResult = Interlocked.CompareExchange(location1: ref location, value: value, comparand: comparand);
if ((locResult = ReferenceEquals(exchangeResult, comparand)) && !ReferenceEquals(value, exchangeResult))
{
// Установлено другое значение.
//
try {
ensureAllowedDisposeState(considerDisposeRequest: true);
}
catch (ObjectDisposedException) {
if (isDisposed())
{
// Поскольку выгрузка завершена...
//
Interlocked.Exchange(ref location, null);
}
throw;
}
}
result = locResult;
}
public static T WriteDA <T>(EnsureAllowedDisposeState ensureAllowedDisposeState, Func <bool> isDisposed, ref T location, T value)
where T : class
{
//
T originalValue;
ensureAllowedDisposeState(considerDisposeRequest: true);
originalValue = Interlocked.Exchange(ref location, value);
if (!ReferenceEquals(value, originalValue))
{
// Установлено другое значение.
//
try {
ensureAllowedDisposeState(considerDisposeRequest: true);
}
catch (ObjectDisposedException) {
if (isDisposed())
{
// Поскольку выгрузка завершена...
//
Interlocked.Exchange(ref location, null);
}
throw;
}
}
return(originalValue);
}
public static T WriteDA <T>(EnsureAllowedDisposeState ensureAllowedDisposeState, Func <bool> isDisposed, ref T location, T value, T comparand)
where T : class
{
//
T originalValue;
ensureAllowedDisposeState(considerDisposeRequest: true);
originalValue = Interlocked.CompareExchange(location1: ref location, value: value, comparand: comparand);
if (ReferenceEquals(objA: originalValue, objB: comparand) && !ReferenceEquals(objA: value, objB: originalValue))
{
// Value in location changed.
//
try { ensureAllowedDisposeState(considerDisposeRequest: true); }
catch (ObjectDisposedException) {
if (isDisposed())
{
Interlocked.Exchange(ref location, null);
}
throw;
}
}
return(originalValue);
}
