protected static bool CompareBinaryContents(
FileContents item1,
IntPtr ptr1,
long byteSize1,
FileContents item2,
IntPtr ptr2,
long byteSize2)
{
if (byteSize1 != byteSize2)
{
return(false);
}
const int smallPrefixSize = 256;
if (byteSize1 < smallPrefixSize)
{
return(NativeMethods.Ascii_Compare(
ptr1,
byteSize1,
ptr2,
byteSize2));
}
if (!NativeMethods.Ascii_Compare(ptr1, smallPrefixSize, ptr2, smallPrefixSize))
{
return(false);
}
return(item1.Hash.Equals(item2.Hash));
}
public FileContentsPiece(FileName fileName, FileContents fileContents, int fileId, TextRange textRange)
{
_fileName = fileName;
_fileContents = fileContents;
_fileId = fileId;
_textRange = textRange;
}
public FileData(FileName fileName, FileContents contents) {
if (fileName == null)
throw new ArgumentNullException("fileName");
_fileName = fileName;
_contents = contents;
}
public override bool HasSameContents(FileContents other) {
var other2 = other as AsciiFileContents;
if (other2 == null)
return false;
return CompareBinaryContents(
this, Contents.Pointer, ByteLength,
other2, other2.Contents.Pointer, other2.ByteLength);
}
public override bool HasSameContents(FileContents other)
{
var other2 = other as Utf16FileContents;
if (other2 == null)
{
return(false);
}
return(CompareBinaryContents(
this, Contents.Pointer, ByteLength,
other2, other2.Contents.Pointer, other2.ByteLength));
}
protected static bool CompareBinaryContents(
FileContents item1,
IntPtr ptr1,
long byteSize1,
FileContents item2,
IntPtr ptr2,
long byteSize2) {
if (byteSize1 != byteSize2)
return false;
const int smallPrefixSize = 256;
if (byteSize1 < smallPrefixSize) {
return NativeMethods.Ascii_Compare(
ptr1,
byteSize1,
ptr2,
byteSize2);
}
if (!NativeMethods.Ascii_Compare(ptr1, smallPrefixSize, ptr2, smallPrefixSize)) {
return false;
}
return item1.Hash.Equals(item2.Hash);
}
public abstract bool HasSameContents(FileContents other);
public abstract bool HasSameContents(FileContents other);
public FileContentsPiece(FileName fileName, FileContents fileContents, int fileId, TextRange textRange) {
_fileName = fileName;
_fileContents = fileContents;
_fileId = fileId;
_textRange = textRange;
}
public override bool HasSameContents(FileContents other) {
return other is BinaryFileContents;
}
public FileContents Get(FileName fileName, FileContents fileContents) {
Interlocked.Increment(ref _count);
return fileContents;
}
public void UpdateContents(FileContents fileContents) {
Interlocked.Exchange(ref _contents, fileContents);
}
public override bool HasSameContents(FileContents other)
{
return(other is BinaryFileContents);
}
