4cd143de87
All sharded services "should" define a stop method. Calling them is also a good practice. For this one specifically, though, we will not call stop. We miss a good way to add a Deleter to a shared_ptr class, and that would be the only reliable way to tie into its lifetime. Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/*
|
|
* Copyright 2015 Cloudius Systems
|
|
*
|
|
* Modified by Cloudius Systems
|
|
*/
|
|
#pragma once
|
|
#include "core/shared_ptr.hh"
|
|
#include "core/distributed.hh"
|
|
|
|
class filter_tracker {
|
|
|
|
lw_shared_ptr<distributed<filter_tracker>> _ptr;
|
|
uint64_t false_positive;
|
|
uint64_t true_positive;
|
|
|
|
uint64_t last_false_positive = 0;
|
|
uint64_t last_true_positive = 0;
|
|
|
|
uint64_t local_false_positive() {
|
|
return false_positive;
|
|
}
|
|
uint64_t local_true_positive() {
|
|
return true_positive;
|
|
}
|
|
uint64_t local_recent_false_positive() {
|
|
auto t = false_positive - last_false_positive;
|
|
last_false_positive = false_positive;
|
|
return t;
|
|
}
|
|
uint64_t local_recent_true_positive() {
|
|
auto t = true_positive - last_true_positive;
|
|
last_true_positive = true_positive;
|
|
return t;
|
|
}
|
|
|
|
public:
|
|
filter_tracker(lw_shared_ptr<distributed<filter_tracker>>&& ptr) : _ptr(std::move(ptr)) {}
|
|
|
|
future<> stop() { return make_ready_future<>(); }
|
|
|
|
void add_false_positive() {
|
|
false_positive++;
|
|
}
|
|
|
|
void add_true_positive() {
|
|
true_positive++;
|
|
}
|
|
|
|
future<uint64_t> get_false_positive() {
|
|
return _ptr->map_reduce(adder<uint64_t>(), [] (auto& t) { return t.local_false_positive(); });
|
|
}
|
|
|
|
future<uint64_t> get_true_positive() {
|
|
return _ptr->map_reduce(adder<uint64_t>(), [] (auto& t) { return t.local_true_positive(); });
|
|
}
|
|
|
|
future<uint64_t> get_recent_false_positive() {
|
|
return _ptr->map_reduce(adder<uint64_t>(), [] (auto& t) { return t.local_recent_false_positive(); });
|
|
}
|
|
|
|
future<uint64_t> get_recent_true_positive() {
|
|
return _ptr->map_reduce(adder<uint64_t>(), [] (auto& t) { return t.local_recent_true_positive(); });
|
|
}
|
|
};
|