Github user hbdeshmukh commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/90#discussion_r74788256
--- Diff: expressions/aggregation/AggregationHandleAvg.hpp ---
@@ -57,26 +58,39 @@ class AggregationStateAvg : public AggregationState {
*/
AggregationStateAvg(const AggregationStateAvg &orig)
: sum_(orig.sum_),
- count_(orig.count_) {
+ count_(orig.count_),
+ sum_offset(orig.sum_offset),
+ count_offset(orig.count_offset),
+ mutex_offset(orig.mutex_offset) {
}
/**
* @brief Destructor.
*/
~AggregationStateAvg() override {}
+ size_t getPayloadSize() const {
+ size_t p1 = reinterpret_cast<size_t>(&sum_);
+ size_t p2 = reinterpret_cast<size_t>(&mutex_);
+ return (p2-p1);
+ }
+
private:
friend class AggregationHandleAvg;
AggregationStateAvg()
- : sum_(0), count_(0) {
+ : sum_(0), count_(0), sum_offset(0),
+ count_offset(reinterpret_cast<uint8_t
*>(&count_)-reinterpret_cast<uint8_t *>(&sum_)),
+ mutex_offset(reinterpret_cast<uint8_t
*>(&mutex_)-reinterpret_cast<uint8_t *>(&sum_)) {
}
// TODO(shoban): We might want to specialize sum_ and count_ to use
atomics
// for int types similar to in AggregationStateCount.
TypedValue sum_;
std::int64_t count_;
SpinMutex mutex_;
+
+ int sum_offset, count_offset, mutex_offset;
--- End diff --
As a convention, the class member variables have an underscore prefix, e.g.
``count_`` and the local function variables don't have the underscore prefix
e.g. ``count``. This helps in a better readability. Can you please make the
appropriate changes?
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