public static void SetAttributes(String path, FileAttributes fileAttributes)
{
// path validation in Path.GetFullPath()
String fullPath = Path.GetFullPath(path);
NativeIO.SetAttributes(fullPath, (uint)fileAttributes);
}
private const int _defaultCopyBufferSize = 2048; /// Experiment on desktop shows 2k-4k is ideal size perfwise.
internal static void Copy(String sourceFileName, String destFileName, bool overwrite, bool deleteOriginal)
{
// sourceFileName and destFileName validation in Path.GetFullPath()
sourceFileName = Path.GetFullPath(sourceFileName);
destFileName = Path.GetFullPath(destFileName);
FileMode writerMode = (overwrite) ? FileMode.Create : FileMode.CreateNew;
FileStream reader = new FileStream(sourceFileName, FileMode.Open, FileAccess.Read, FileShare.Read, NativeFileStream.BufferSizeDefault);
try
{
using (FileStream writer = new FileStream(destFileName, writerMode, FileAccess.Write, FileShare.None, NativeFileStream.BufferSizeDefault))
{
long fileLength = reader.Length;
writer.SetLength(fileLength);
byte[] buffer = new byte[_defaultCopyBufferSize];
for (; ;)
{
int readSize = reader.Read(buffer, 0, _defaultCopyBufferSize);
if (readSize <= 0)
{
break;
}
writer.Write(buffer, 0, readSize);
}
// Copy the attributes too
NativeIO.SetAttributes(destFileName, NativeIO.GetAttributes(sourceFileName));
}
}
finally
{
if (deleteOriginal)
{
reader.DisposeAndDelete();
}
else
{
reader.Dispose();
}
}
}
