private void releaseExportBytes(long releaseOffset, ArrayList<StreamBlock> blocksToDelete)
throws IOException {
// if released offset is in an already-released past, just return success
if (!m_committedBuffers.isEmpty() && releaseOffset < m_committedBuffers.peek().uso()) {
return;
}
long lastUso = m_firstUnpolledUso;
while (!m_committedBuffers.isEmpty() && releaseOffset >= m_committedBuffers.peek().uso()) {
StreamBlock sb = m_committedBuffers.peek();
if (releaseOffset >= sb.uso() + sb.totalUso()) {
m_committedBuffers.pop();
blocksToDelete.add(sb);
lastUso = sb.uso() + sb.totalUso();
} else if (releaseOffset >= sb.uso()) {
sb.releaseUso(releaseOffset);
lastUso = releaseOffset;
break;
}
}
m_firstUnpolledUso = Math.max(m_firstUnpolledUso, lastUso);
}
public void truncateExportToTxnId(long txnId) {
try {
synchronized (m_committedBuffers) {
m_committedBuffers.truncateToTxnId(txnId, m_nullArrayLength);
if (m_committedBuffers.isEmpty() && m_endOfStream) {
try {
m_onDrain.run();
} finally {
m_onDrain = null;
}
}
}
} catch (IOException e) {
VoltDB.crashLocalVoltDB(e.getMessage(), true, e);
}
}
private void resetPollMarker() throws IOException {
if (!m_committedBuffers.isEmpty()) {
StreamBlock oldestBlock = m_committedBuffers.peek();
m_firstUnpolledUso = oldestBlock.unreleasedUso();
}
}
