private Operation optimizeSets() {
// make sure there are at least two get operations in a row before
// attempting to optimize them.
Operation optimizedOp = writeQ.remove();
if (writeQ.peek() instanceof CASOperation) {
OptimizedSetImpl og = new OptimizedSetImpl((CASOperation) optimizedOp);
optimizedOp = og;
while (writeQ.peek() instanceof StoreOperation
&& og.size() < MAX_SET_OPTIMIZATION_COUNT
&& og.bytes() < MAX_SET_OPTIMIZATION_BYTES) {
CASOperation o = (CASOperation) writeQ.remove();
if (!o.isCancelled()) {
og.addOperation(o);
}
}
// Initialize the new mega set
optimizedOp.initialize();
assert optimizedOp.getState() == OperationState.WRITING;
}
return optimizedOp;
}
/** Construct an optimized get starting with the given get operation. */
public OptimizedSetImpl(CASOperation firstStore) {
super(-1, -1, NOOP_CALLBACK);
addOperation(firstStore);
}