private void WritePageInternal(TransactionPairsPage page)
{
// Go to end of file.
long offset = tradeData.Write(page.Buffer, 0, page.Buffer.Length);
lock ( dirtyLocker) {
try {
if (page.PageNumber == 0)
{
throw new ApplicationException("Found pageNumber is 0: \n" + this);
}
offsets.Add(page.PageNumber, new Page(offset, page.Id));
} catch (Exception ex) {
string message = "Error while adding PageNumber " + page.PageNumber + ": " + ex.Message;
log.Error(message, ex);
try {
log.Error(message + "\n" + this, ex);
} catch (Exception ex2) {
log.Error("Exception while logging ToString of PairsPages: " + ex.Message, ex2);
}
throw new ApplicationException(message + "\n" + this, ex);
}
try {
pagePool.Free(page);
} catch (Exception ex) {
throw new ApplicationException("Failure while freeing page: " + page.PageNumber + "(" + page.Id + ") :\n" + this, ex);
}
dirtyPages.Remove(page);
}
}
private int GetPageIndex(int index)
{
int pageNumber = HashPageNumber(index);
int pageIndex = index & pageMask;
if (current == null || current.PageNumber != pageNumber)
{
pages.TryRelease(current);
current = (TransactionPairsPage)pages.GetPage(pageNumber);
}
return(pageIndex);
}
internal void WritePage(TransactionPairsPage page)
{
if (asynchronous)
{
lock ( writeLocker) {
writeQueue.Enqueue(page);
}
}
else
{
WritePageInternal(page);
}
}
private void AssureTail()
{
if (count > capacity)
{
if (tail != null)
{
pages.WritePage(tail);
}
int pageNumber = HashPageNumber(count);
tail = (TransactionPairsPage)pages.CreatePage(pageNumber, pageSize);
current = tail;
capacity += pageSize;
}
}
internal void WritePage(TransactionPairsPage page)
{
if (asynchronous)
{
for (var i = 0; i < dirtyPageList.Length; i++)
{
if (dirtyPageList[i] == null)
{
dirtyPageList[i] = page;
return;
}
}
throw new ApplicationException("No open slots in dirty page list.");
}
else
{
WritePageInternal(page);
}
}
