From c246440dc5b12d68cf63bf6e4fa0ea02af7c4247 Mon Sep 17 00:00:00 2001
From: Vova Sharaienko <sharaienko@google.com>
Date: Thu, 23 Mar 2023 20:52:49 +0000
Subject: [PATCH] [TeX] Introduced Telemetry Express Logging APIs

- provided C++ Histogram metric logging API with UID

Bug: 266586106
Test: m
Change-Id: I2ee92d423be5f9c137fa160d8c744340972f8036
---
 libstats/expresslog/Histogram.cpp       | 5 +++++
 libstats/expresslog/include/Histogram.h | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/libstats/expresslog/Histogram.cpp b/libstats/expresslog/Histogram.cpp
index cb29a00a9..50bb343af 100644
--- a/libstats/expresslog/Histogram.cpp
+++ b/libstats/expresslog/Histogram.cpp
@@ -71,5 +71,10 @@ void Histogram::logSample(float sample) const {
     stats_write(EXPRESS_HISTOGRAM_SAMPLE_REPORTED, mMetricIdHash, /*count*/ 1, binIndex);
 }
 
+void Histogram::logSampleWithUid(int32_t uid, float sample) const {
+    const int binIndex = mBinOptions->getBinForSample(sample);
+    stats_write(EXPRESS_UID_HISTOGRAM_SAMPLE_REPORTED, mMetricIdHash, /*count*/ 1, binIndex, uid);
+}
+
 }  // namespace expresslog
 }  // namespace android
diff --git a/libstats/expresslog/include/Histogram.h b/libstats/expresslog/include/Histogram.h
index 8fdc1b684..49aee3d9c 100644
--- a/libstats/expresslog/include/Histogram.h
+++ b/libstats/expresslog/include/Histogram.h
@@ -72,6 +72,11 @@ public:
      */
     void logSample(float sample) const;
 
+    /**
+     * Logs increment sample count for automatically calculated bin with uid
+     */
+    void logSampleWithUid(int32_t uid, float sample) const;
+
 private:
     const int64_t mMetricIdHash;
     const std::shared_ptr<BinOptions> mBinOptions;