Camera: Pass system health metrics to ServiceProxy

- Measure session statistics:
  - Camera open, close, and session creation latency
  - Session information such as camera id, is_ndk, operating mode,
    and reconfiguration count.
- Measure stream statistics:
  - width, height, format, dataspace, usage
  - max buffer count
  - buffer loss count
  - startup latency.

Test: ./out/host/linux-x86/bin/statsd_testdrive 227
Test: Camera CTS, VNDK test
Bug: 154159000
Change-Id: I082ef26a312bddbfd4abcc2148728a4b7bf8a9f6
diff --git a/camera/CameraSessionStats.cpp b/camera/CameraSessionStats.cpp
new file mode 100644
index 0000000..4c23982
--- /dev/null
+++ b/camera/CameraSessionStats.cpp
@@ -0,0 +1,380 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#define LOG_TAG "CameraSessionStats"
+#include <utils/Log.h>
+#include <utils/String16.h>
+
+#include <camera/CameraSessionStats.h>
+
+#include <binder/Parcel.h>
+
+namespace android {
+namespace hardware {
+
+status_t CameraStreamStats::readFromParcel(const android::Parcel* parcel) {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    status_t err = OK;
+
+    int width = 0;
+    if ((err = parcel->readInt32(&width)) != OK) {
+        ALOGE("%s: Failed to read width from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int height = 0;
+    if ((err = parcel->readInt32(&height)) != OK) {
+        ALOGE("%s: Failed to read height from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int format = 0;
+    if ((err = parcel->readInt32(&format)) != OK) {
+        ALOGE("%s: Failed to read format from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int dataSpace = 0;
+    if ((err = parcel->readInt32(&dataSpace)) != OK) {
+        ALOGE("%s: Failed to read dataSpace from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int64_t usage = 0;
+    if ((err = parcel->readInt64(&usage)) != OK) {
+        ALOGE("%s: Failed to read usage from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int64_t requestCount = 0;
+    if ((err = parcel->readInt64(&requestCount)) != OK) {
+        ALOGE("%s: Failed to read request count from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int64_t errorCount = 0;
+    if ((err = parcel->readInt64(&errorCount)) != OK) {
+        ALOGE("%s: Failed to read error count from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int startLatencyMs = 0;
+    if ((err = parcel->readInt32(&startLatencyMs)) != OK) {
+        ALOGE("%s: Failed to read start latency from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int maxHalBuffers = 0;
+    if ((err = parcel->readInt32(&maxHalBuffers)) != OK) {
+        ALOGE("%s: Failed to read max Hal buffers from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int maxAppBuffers = 0;
+    if ((err = parcel->readInt32(&maxAppBuffers)) != OK) {
+        ALOGE("%s: Failed to read max app buffers from parcel", __FUNCTION__);
+        return err;
+    }
+
+    mWidth = width;
+    mHeight = height;
+    mFormat = format;
+    mDataSpace = dataSpace;
+    mUsage = usage;
+    mRequestCount = requestCount;
+    mErrorCount = errorCount;
+    mStartLatencyMs = startLatencyMs;
+    mMaxHalBuffers = maxHalBuffers;
+    mMaxAppBuffers = maxAppBuffers;
+
+    return OK;
+}
+
+status_t CameraStreamStats::writeToParcel(android::Parcel* parcel) const {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    status_t err = OK;
+
+    if ((err = parcel->writeInt32(mWidth)) != OK) {
+        ALOGE("%s: Failed to write stream width!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mHeight)) != OK) {
+        ALOGE("%s: Failed to write stream height!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mFormat)) != OK) {
+        ALOGE("%s: Failed to write stream format!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mDataSpace)) != OK) {
+        ALOGE("%s: Failed to write stream dataSpace!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt64(mUsage)) != OK) {
+        ALOGE("%s: Failed to write stream usage!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt64(mRequestCount)) != OK) {
+        ALOGE("%s: Failed to write stream request count!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt64(mErrorCount)) != OK) {
+        ALOGE("%s: Failed to write stream error count!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mStartLatencyMs)) != OK) {
+        ALOGE("%s: Failed to write stream start latency!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mMaxHalBuffers)) != OK) {
+        ALOGE("%s: Failed to write max hal buffers", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mMaxAppBuffers)) != OK) {
+        ALOGE("%s: Failed to write max app buffers", __FUNCTION__);
+        return err;
+    }
+
+    return OK;
+}
+
+CameraSessionStats::CameraSessionStats() :
+        mFacing(CAMERA_FACING_BACK),
+        mNewCameraState(CAMERA_STATE_CLOSED),
+        mApiLevel(0),
+        mIsNdk(false),
+        mLatencyMs(-1),
+        mSessionType(0),
+        mInternalReconfigure(0),
+        mRequestCount(0),
+        mResultErrorCount(0),
+        mDeviceError(false) {}
+
+CameraSessionStats::CameraSessionStats(const String16& cameraId,
+        int facing, int newCameraState, const String16& clientName,
+        int apiLevel, bool isNdk, int32_t latencyMs) :
+                mCameraId(cameraId),
+                mFacing(facing),
+                mNewCameraState(newCameraState),
+                mClientName(clientName),
+                mApiLevel(apiLevel),
+                mIsNdk(isNdk),
+                mLatencyMs(latencyMs),
+                mSessionType(0),
+                mInternalReconfigure(0),
+                mRequestCount(0),
+                mResultErrorCount(0),
+                mDeviceError(0) {}
+
+status_t CameraSessionStats::readFromParcel(const android::Parcel* parcel) {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    status_t err = OK;
+
+    String16 id;
+    if ((err = parcel->readString16(&id)) != OK) {
+        ALOGE("%s: Failed to read camera id!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    int facing = 0;
+    if ((err = parcel->readInt32(&facing)) != OK) {
+        ALOGE("%s: Failed to read camera facing from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int32_t newCameraState;
+    if ((err = parcel->readInt32(&newCameraState)) != OK) {
+        ALOGE("%s: Failed to read new camera state from parcel", __FUNCTION__);
+        return err;
+    }
+
+    String16 clientName;
+    if ((err = parcel->readString16(&clientName)) != OK) {
+        ALOGE("%s: Failed to read client name!", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    int32_t apiLevel;
+    if ((err = parcel->readInt32(&apiLevel)) != OK) {
+        ALOGE("%s: Failed to read api level from parcel", __FUNCTION__);
+        return err;
+    }
+
+    bool isNdk;
+    if ((err = parcel->readBool(&isNdk)) != OK) {
+        ALOGE("%s: Failed to read isNdk flag from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int32_t latencyMs;
+    if ((err = parcel->readInt32(&latencyMs)) != OK) {
+        ALOGE("%s: Failed to read latencyMs from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int32_t sessionType;
+    if ((err = parcel->readInt32(&sessionType)) != OK) {
+        ALOGE("%s: Failed to read session type from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int32_t internalReconfigure;
+    if ((err = parcel->readInt32(&internalReconfigure)) != OK) {
+        ALOGE("%s: Failed to read internal reconfigure count from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int64_t requestCount;
+    if ((err = parcel->readInt64(&requestCount)) != OK) {
+        ALOGE("%s: Failed to read request count from parcel", __FUNCTION__);
+        return err;
+    }
+
+    int64_t resultErrorCount;
+    if ((err = parcel->readInt64(&resultErrorCount)) != OK) {
+        ALOGE("%s: Failed to read result error count from parcel", __FUNCTION__);
+        return err;
+    }
+
+    bool deviceError;
+    if ((err = parcel->readBool(&deviceError)) != OK) {
+        ALOGE("%s: Failed to read device error flag from parcel", __FUNCTION__);
+        return err;
+    }
+
+    std::vector<CameraStreamStats> streamStats;
+    if ((err = parcel->readParcelableVector(&streamStats)) != OK) {
+        ALOGE("%s: Failed to read stream state from parcel", __FUNCTION__);
+        return err;
+    }
+
+    mCameraId = id;
+    mFacing = facing;
+    mNewCameraState = newCameraState;
+    mClientName = clientName;
+    mApiLevel = apiLevel;
+    mIsNdk = isNdk;
+    mLatencyMs = latencyMs;
+    mSessionType = sessionType;
+    mInternalReconfigure = internalReconfigure;
+    mRequestCount = requestCount;
+    mResultErrorCount = resultErrorCount;
+    mDeviceError = deviceError;
+    mStreamStats = std::move(streamStats);
+
+    return OK;
+}
+
+status_t CameraSessionStats::writeToParcel(android::Parcel* parcel) const {
+    if (parcel == NULL) {
+        ALOGE("%s: Null parcel", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    status_t err = OK;
+
+    if ((err = parcel->writeString16(mCameraId)) != OK) {
+        ALOGE("%s: Failed to write camera id!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mFacing)) != OK) {
+        ALOGE("%s: Failed to write camera facing!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mNewCameraState)) != OK) {
+        ALOGE("%s: Failed to write new camera state!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeString16(mClientName)) != OK) {
+        ALOGE("%s: Failed to write client name!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mApiLevel)) != OK) {
+        ALOGE("%s: Failed to write api level!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeBool(mIsNdk)) != OK) {
+        ALOGE("%s: Failed to write isNdk flag!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mLatencyMs)) != OK) {
+        ALOGE("%s: Failed to write latency in Ms!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mSessionType)) != OK) {
+        ALOGE("%s: Failed to write session type!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt32(mInternalReconfigure)) != OK) {
+        ALOGE("%s: Failed to write internal reconfigure count!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt64(mRequestCount)) != OK) {
+        ALOGE("%s: Failed to write request count!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeInt64(mResultErrorCount)) != OK) {
+        ALOGE("%s: Failed to write result error count!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeBool(mDeviceError)) != OK) {
+        ALOGE("%s: Failed to write device error flag!", __FUNCTION__);
+        return err;
+    }
+
+    if ((err = parcel->writeParcelableVector(mStreamStats)) != OK) {
+        ALOGE("%s: Failed to write stream states!", __FUNCTION__);
+        return err;
+    }
+
+    return OK;
+}
+
+} // namespace hardware
+} // namesmpace android