Flush the bucket when creating the metric producer.
Use int64 for value field.
E2e test for gauge/value metric.

BUG: b/74445671

Test: statsd test.
Change-Id: I823a0bade8f89834bdfb9cf48864852a47d7b63b
diff --git a/cmds/statsd/src/StatsService.cpp b/cmds/statsd/src/StatsService.cpp
index d3cda63..86a3a78 100644
--- a/cmds/statsd/src/StatsService.cpp
+++ b/cmds/statsd/src/StatsService.cpp
@@ -81,7 +81,7 @@
     StatsPuller::SetUidMap(mUidMap);
     mConfigManager = new ConfigManager();
     mProcessor = new StatsLogProcessor(mUidMap, mAnomalyAlarmMonitor, mPeriodicAlarmMonitor,
-                                       getElapsedRealtimeSec(), [this](const ConfigKey& key) {
+                                       getElapsedRealtimeNs(), [this](const ConfigKey& key) {
         sp<IStatsCompanionService> sc = getStatsCompanionService();
         auto receiver = mConfigManager->GetConfigReceiver(key);
         if (sc == nullptr) {
@@ -745,7 +745,7 @@
                                          "Only system uid can call informPollAlarmFired");
     }
 
-    mStatsPullerManager.OnAlarmFired();
+    mProcessor->informPullAlarmFired(getElapsedRealtimeNs());
 
     VLOG("StatsService::informPollAlarmFired succeeded");