本文整理汇总了C#中CacheEntry.AddRef方法的典型用法代码示例。如果您正苦于以下问题：C# CacheEntry.AddRef方法的具体用法？C# CacheEntry.AddRef怎么用？C# CacheEntry.AddRef使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CacheEntry的用法示例。
在下文中一共展示了CacheEntry.AddRef方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CreateView
public CacheEntry CreateView(long offset, uint size, MemoryMappedFileAccess access)
{
if (_IsDisposed)
throw new ObjectDisposedException("Cache");
if (access == MemoryMappedFileAccess.Write)
access = MemoryMappedFileAccess.ReadWrite;
int? freeSlot = null;
int? oldestUsedSlot = null;
long oldestUsedTimestamp = long.MaxValue;
for (int i = 0; i < Capacity; i++) {
var item = Cache[i];
if (item == null || item.IsDisposed) {
freeSlot = i;
continue;
}
if (item.CreatedWhen < oldestUsedTimestamp)
oldestUsedSlot = i;
if (offset < item.Offset)
continue;
if (offset + size > item.Offset + item.Size)
continue;
if (item.AddRef())
return item;
else {
freeSlot = i;
break;
}
}
if (!freeSlot.HasValue && !oldestUsedSlot.HasValue)
throw new InvalidDataException();
long actualOffset;
uint actualSize;
var view = CreateViewUncached(offset, size, MemoryMappedFileAccess.ReadWrite, out actualOffset, out actualSize);
var newEntry = new CacheEntry(view, actualOffset, actualSize);
newEntry.AddRef();
long slotIndex = freeSlot.GetValueOrDefault(oldestUsedSlot.GetValueOrDefault(0));
var oldEntry = Interlocked.Exchange(ref Cache[slotIndex], newEntry);
if (oldEntry != null)
oldEntry.RemoveRef();
return newEntry;
}