public FileContentsMemory(SafeHeapBlockHandle block, int contentsOffset, long contentsByteCount)
{
if (contentsOffset > block.ByteLength)
throw new ArgumentException("Content offset is too far in buffer", "contentsOffset");
_block = block;
_contentsOffset = contentsOffset;
_contentsByteCount = contentsByteCount;
}
public static unsafe SafeHeapBlockHandle Utf8ToUtf16(SafeHeapBlockHandle block) {
var start = (byte*)block.Pointer;
var end = start + block.ByteLength;
return Utf8ToUtf16(start, end);
}
private static unsafe void SetSearchMatches(SafeHeapBlockHandle block, string search, int matchCount)
{
if (matchCount <= 0)
return;
var p = (byte*)block.Pointer.ToPointer();
var delta = (block.ByteLength - search.Length) / matchCount;
for (var i = 0; i < matchCount; i++) {
var offset = (long)i * delta;
for (var j = 0; j < search.Length; j++) {
p[offset + j] = (byte)search[j];
}
}
}
private static int PerformSearch(SafeHeapBlockHandle textBlock, AsciiStringSearchAlgorithm algo, int repeat)
{
int matchCount = 0;
for (var i = 0; i < repeat; i++) {
matchCount = algo.SearchAll(textBlock.Pointer, (int)textBlock.ByteLength).Count();
}
return matchCount;
}
private static unsafe void FillWithNonNulCharacters(SafeHeapBlockHandle block)
{
var p = (byte*)block.Pointer.ToPointer();
for (var i = 0L; i < block.ByteLength; i++) {
p[i] = 0x01;
}
}
private static int PerformSearch(
SafeHeapBlockHandle textBlock,
ICompiledTextSearch algo,
int repeat) {
int matchCount = 0;
for (var i = 0; i < repeat; i++) {
matchCount = algo.FindAll(
new TextFragment(textBlock.Pointer, 0, textBlock.ByteLength, sizeof (byte)),
x => x,
OperationProgressTracker.None).Count();
}
return matchCount;
}
public FileContentsMemory(SafeHeapBlockHandle block, int contentsOffset, int contentsLength) :
this(block, block.ByteLength, contentsOffset, contentsLength) {
}
