public int FillTailCache(LogFileStream logFileStream)
{
int lineCount = 0;
// Quickly fast forward to near the file bottom
if (!logFileStream.CloseToEnd(Items.Count))
{
do
{
if (logFileStream.ReadLine(lineCount + 1) != null)
lineCount++;
// We have read a good part of the file
if (lineCount % Items.Count == 0)
{
if (LoadingFileEvent != null)
LoadingFileEvent(logFileStream, null);
}
}
while (!logFileStream.CloseToEnd(Items.Count));
// We are almost finished with loading the file
if (LoadingFileEvent != null)
LoadingFileEvent(null, null);
}
// Read the last lines of the file into the cache
bool continueReading = false;
PrepareCache(lineCount, lineCount, true);
do
{
int lastCacheIndex = FillCache(logFileStream, FirstIndex + Items.Count);
System.Diagnostics.Debug.Assert(lastCacheIndex != -1 || logFileStream.Length == 0);
continueReading = (lastCacheIndex == Items.Count - 1);
lineCount = FirstIndex + lastCacheIndex + 1;
if (continueReading)
PrepareCache(lineCount + Items.Count / 2, lineCount + Items.Count / 2, true);
} while (continueReading);
return lineCount;
}
