private void InitTermBuffer()
{
if (termBuffer == null)
{
termBuffer = new char[ArrayUtil.GetNextSize(MIN_BUFFER_SIZE)];
termLength = 0;
}
}
/// <summary>Allocates a buffer char[] of at least newSize, without preserving the existing content.
/// its always used in places that set the content
/// </summary>
/// <param name="newSize">minimum size of the buffer
/// </param>
private void GrowTermBuffer(int newSize)
{
if (termBuffer == null)
{
// The buffer is always at least MIN_BUFFER_SIZE
termBuffer = new char[ArrayUtil.GetNextSize(newSize < MIN_BUFFER_SIZE?MIN_BUFFER_SIZE:newSize)];
}
else
{
if (termBuffer.Length < newSize)
{
// Not big enough; create a new array with slight
// over allocation:
termBuffer = new char[ArrayUtil.GetNextSize(newSize)];
}
}
}
/// <summary>Grows the termBuffer to at least size newSize, preserving the
/// existing content. Note: If the next operation is to change
/// the contents of the term buffer use
/// <see cref="SetTermBuffer(char[], int, int)" />,
/// <see cref="SetTermBuffer(String)" />, or
/// <see cref="SetTermBuffer(String, int, int)" />
/// to optimally combine the resize with the setting of the termBuffer.
/// </summary>
/// <param name="newSize">minimum size of the new termBuffer
/// </param>
/// <returns> newly created termBuffer with length >= newSize
/// </returns>
public virtual char[] ResizeTermBuffer(int newSize)
{
if (termBuffer == null)
{
termBuffer = new char[ArrayUtil.GetNextSize(newSize < MIN_BUFFER_SIZE ? MIN_BUFFER_SIZE : newSize)];
}
else
{
if (termBuffer.Length < newSize)
{
// Not big enough; create a new array with slight
// over allocation and preserve content
var newCharBuffer = new char[ArrayUtil.GetNextSize(newSize)];
Array.Copy(termBuffer, 0, newCharBuffer, 0, termBuffer.Length);
termBuffer = newCharBuffer;
}
}
return(termBuffer);
}
internal PerDoc GetPerDoc()
{
lock (this)
{
if (freeCount == 0)
{
allocCount++;
if (allocCount > docFreeList.Length)
{
// Grow our free list up front to make sure we have
// enough space to recycle all outstanding PerDoc
// instances
System.Diagnostics.Debug.Assert(allocCount == 1 + docFreeList.Length);
docFreeList = new PerDoc[ArrayUtil.GetNextSize(allocCount)];
}
return(new PerDoc(this));
}
else
{
return(docFreeList[--freeCount]);
}
}
}