Add StateTracker classes
One shared StateManager object will manage all StateTrackers across all configs, maintaining a map of atom ids to StateTrackers.
StateManager is responsible for initializing and removing StateTrackers and notifying them of event or StateListener changes.
Each StateTracker maintains a list of StateListeners and is responsible for tracking state values to primary keys and notifying StateListeners when a state change occurs.
Test: bit statsd_test:*
Bug: 136566566
Change-Id: Icb61c668a01b611aa75caa7bdc2a6801c650b119
diff --git a/cmds/statsd/src/HashableDimensionKey.cpp b/cmds/statsd/src/HashableDimensionKey.cpp
index af8b3af..5e156bb 100644
--- a/cmds/statsd/src/HashableDimensionKey.cpp
+++ b/cmds/statsd/src/HashableDimensionKey.cpp
@@ -59,6 +59,16 @@
return JenkinsHashWhiten(hash);
}
+bool filterValues(const Matcher& matcherField, const vector<FieldValue>& values, Value* output) {
+ for (const auto& value : values) {
+ if (value.mField.matches(matcherField)) {
+ (*output) = value.mValue;
+ return true;
+ }
+ }
+ return false;
+}
+
bool filterValues(const vector<Matcher>& matcherFields, const vector<FieldValue>& values,
HashableDimensionKey* output) {
size_t num_matches = 0;