blob: af85772f164182739f8bec6db7b83359b1d1529b [file] [log] [blame]
/*
**
** Copyright 2023, 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 "ResourceManagerMetrics"
#include <utils/Log.h>
#include <mediautils/ProcessInfo.h>
#include <stats_media_metrics.h>
#include "UidObserver.h"
#include "ResourceManagerMetrics.h"
#include <cmath>
#include <sstream>
namespace android {
using stats::media_metrics::stats_write;
using stats::media_metrics::MEDIA_CODEC_STARTED;
using stats::media_metrics::MEDIA_CODEC_STOPPED;
// Disabling this for now.
#ifdef ENABLE_MEDIA_CODEC_CONCURRENT_USAGE_REPORTED
using stats::media_metrics::MEDIA_CODEC_CONCURRENT_USAGE_REPORTED;
#endif
using stats::media_metrics::MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED;
using stats::media_metrics::MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_SUCCESS;
using stats::media_metrics::\
MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_FAILED_NO_CLIENTS;
using stats::media_metrics::\
MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_FAILED_RECLAIM_RESOURCES;
inline const char* getCodecType(MediaResourceSubType codecType) {
switch (codecType) {
case MediaResourceSubType::kHwAudioCodec: return "Hw Audio";
case MediaResourceSubType::kSwAudioCodec: return "Sw Audio";
case MediaResourceSubType::kHwVideoCodec: return "Hw Video";
case MediaResourceSubType::kSwVideoCodec: return "Sw Video";
case MediaResourceSubType::kHwImageCodec: return "Hw Image";
case MediaResourceSubType::kSwImageCodec: return "Sw Image";
case MediaResourceSubType::kUnspecifiedSubType:
default:
return "Unspecified";
}
return "Unspecified";
}
inline bool isHardwareCodec(MediaResourceSubType codecType) {
return (codecType == MediaResourceSubType::kHwAudioCodec ||
codecType == MediaResourceSubType::kHwVideoCodec ||
codecType == MediaResourceSubType::kHwImageCodec);
}
static CodecBucket getCodecBucket(bool isEncoder, MediaResourceSubType codecType) {
switch (codecType) {
case MediaResourceSubType::kHwAudioCodec:
return isEncoder? HwAudioEncoder : HwAudioDecoder;
case MediaResourceSubType::kSwAudioCodec:
return isEncoder? SwAudioEncoder : SwAudioDecoder;
case MediaResourceSubType::kHwVideoCodec:
return isEncoder? HwVideoEncoder : HwVideoDecoder;
case MediaResourceSubType::kSwVideoCodec:
return isEncoder? SwVideoEncoder : SwVideoDecoder;
case MediaResourceSubType::kHwImageCodec:
return isEncoder? HwImageEncoder : HwImageDecoder;
case MediaResourceSubType::kSwImageCodec:
return isEncoder? SwImageEncoder : SwImageDecoder;
case MediaResourceSubType::kUnspecifiedSubType:
default:
return CodecBucketUnspecified;
}
return CodecBucketUnspecified;
}
static bool getLogMessage(int hwCount, int swCount, std::stringstream& logMsg) {
bool update = false;
logMsg.clear();
if (hwCount > 0) {
logMsg << " HW: " << hwCount;
update = true;
}
if (swCount > 0) {
logMsg << " SW: " << swCount;
update = true;
}
if (update) {
logMsg << " ] ";
}
return update;
}
ResourceManagerMetrics::ResourceManagerMetrics(const sp<ProcessInfoInterface>& processInfo) {
// Create a process termination watcher, with 5seconds of polling frequency.
mUidObserver = sp<UidObserver>::make(processInfo,
[this] (int32_t pid, uid_t uid) {
onProcessTerminated(pid, uid);
});
mUidObserver->start();
}
ResourceManagerMetrics::~ResourceManagerMetrics() {
mUidObserver->stop();
}
void ResourceManagerMetrics::addPid(int pid, uid_t uid) {
if (uid != 0) {
std::scoped_lock lock(mLock);
mUidObserver->add(pid, uid);
}
}
void ResourceManagerMetrics::notifyClientCreated(const ClientInfoParcel& clientInfo) {
std::scoped_lock lock(mLock);
// Update the resource instance count.
std::map<std::string, int>::iterator found = mConcurrentResourceCountMap.find(clientInfo.name);
if (found == mConcurrentResourceCountMap.end()) {
mConcurrentResourceCountMap[clientInfo.name] = 1;
} else {
found->second++;
}
}
void ResourceManagerMetrics::notifyClientReleased(const ClientInfoParcel& clientInfo) {
bool stopCalled = true;
ClientConfigParcel clientConfig;
{
std::scoped_lock lock(mLock);
ClientConfigMap::iterator found = mClientConfigMap.find(clientInfo.id);
if (found != mClientConfigMap.end()) {
// Release is called without Stop!
stopCalled = false;
clientConfig = found->second;
// Update the timestamp for stopping the codec.
clientConfig.timeStamp = systemTime(SYSTEM_TIME_MONOTONIC) / 1000LL;
}
}
if (!stopCalled) {
// call Stop to update the metrics.
notifyClientStopped(clientConfig);
}
{
std::scoped_lock lock(mLock);
// Update the resource instance count also.
std::map<std::string, int>::iterator found =
mConcurrentResourceCountMap.find(clientInfo.name);
if (found != mConcurrentResourceCountMap.end()) {
if (found->second > 0) {
found->second--;
}
}
}
}
void ResourceManagerMetrics::notifyClientConfigChanged(const ClientConfigParcel& clientConfig) {
std::scoped_lock lock(mLock);
ClientConfigMap::iterator entry = mClientConfigMap.find(clientConfig.clientInfo.id);
if (entry != mClientConfigMap.end() &&
(clientConfig.codecType == MediaResourceSubType::kHwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kSwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kHwImageCodec ||
clientConfig.codecType == MediaResourceSubType::kSwImageCodec)) {
int pid = clientConfig.clientInfo.pid;
// Update the pixel count for this process
updatePixelCount(pid, clientConfig.width * (long)clientConfig.height,
entry->second.width * (long)entry->second.height);
// Update the resolution in the record.
entry->second.width = clientConfig.width;
entry->second.height = clientConfig.height;
}
}
void ResourceManagerMetrics::notifyClientStarted(const ClientConfigParcel& clientConfig) {
std::scoped_lock lock(mLock);
int pid = clientConfig.clientInfo.pid;
// We need to observer this process.
mUidObserver->add(pid, clientConfig.clientInfo.uid);
// Update the client config for thic client.
mClientConfigMap[clientConfig.clientInfo.id] = clientConfig;
// Update the concurrent codec count for this process.
CodecBucket codecBucket = getCodecBucket(clientConfig.isEncoder, clientConfig.codecType);
increaseConcurrentCodecs(pid, codecBucket);
if (clientConfig.codecType == MediaResourceSubType::kHwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kSwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kHwImageCodec ||
clientConfig.codecType == MediaResourceSubType::kSwImageCodec) {
// Update the pixel count for this process
increasePixelCount(pid, clientConfig.width * (long)clientConfig.height);
}
// System concurrent codec usage
int systemConcurrentCodecs = mConcurrentCodecsMap[codecBucket];
// Process/Application concurrent codec usage for this type of codec
const ConcurrentCodecs& concurrentCodecs = mProcessConcurrentCodecsMap[pid];
int appConcurrentCodecs = concurrentCodecs.mCurrent[codecBucket];
int hwVideoCodecs = concurrentCodecs.mHWVideoCodecs;
int swVideoCodecs = concurrentCodecs.mSWVideoCodecs;
int videoCodecs = concurrentCodecs.mVideoCodecs;
int audioCodecs = concurrentCodecs.mAudioCodecs;
int imageCodecs = concurrentCodecs.mImageCodecs;
// Process/Application's current pixel count.
long pixelCount = 0;
std::map<int32_t, PixelCount>::iterator it = mProcessPixelsMap.find(pid);
if (it != mProcessPixelsMap.end()) {
pixelCount = it->second.mCurrent;
}
int result = stats_write(
MEDIA_CODEC_STARTED,
clientConfig.clientInfo.uid,
clientConfig.id,
clientConfig.clientInfo.name.c_str(),
static_cast<int32_t>(clientConfig.codecType),
clientConfig.isEncoder,
isHardwareCodec(clientConfig.codecType),
clientConfig.width, clientConfig.height,
systemConcurrentCodecs,
appConcurrentCodecs,
pixelCount,
hwVideoCodecs,
swVideoCodecs,
videoCodecs,
audioCodecs,
imageCodecs);
ALOGV("%s: Pushed MEDIA_CODEC_STARTED atom: "
"Process[pid(%d): uid(%d)] "
"Codec: [%s: %ju] is %s %s "
"Timestamp: %jd "
"Resolution: %d x %d "
"ConcurrentCodec[%d]={System: %d App: %d} "
"AppConcurrentCodecs{Video: %d(HW[%d] SW[%d]) Audio: %d Image: %d} "
"result: %d",
__func__,
pid, clientConfig.clientInfo.uid,
clientConfig.clientInfo.name.c_str(),
clientConfig.id,
getCodecType(clientConfig.codecType),
clientConfig.isEncoder? "encoder" : "decoder",
clientConfig.timeStamp,
clientConfig.width, clientConfig.height,
codecBucket, systemConcurrentCodecs, appConcurrentCodecs,
videoCodecs, hwVideoCodecs, swVideoCodecs, audioCodecs, imageCodecs,
result);
}
void ResourceManagerMetrics::notifyClientStopped(const ClientConfigParcel& clientConfig) {
std::scoped_lock lock(mLock);
int pid = clientConfig.clientInfo.pid;
// Update the concurrent codec count for this process.
CodecBucket codecBucket = getCodecBucket(clientConfig.isEncoder, clientConfig.codecType);
decreaseConcurrentCodecs(pid, codecBucket);
if (clientConfig.codecType == MediaResourceSubType::kHwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kSwVideoCodec ||
clientConfig.codecType == MediaResourceSubType::kHwImageCodec ||
clientConfig.codecType == MediaResourceSubType::kSwImageCodec) {
// Update the pixel count for this process
decreasePixelCount(pid, clientConfig.width * (long)clientConfig.height);
}
// System concurrent codec usage
int systemConcurrentCodecs = mConcurrentCodecsMap[codecBucket];
// Process/Application concurrent codec usage for this type of codec
int appConcurrentCodecs = 0;
std::map<int32_t, ConcurrentCodecs>::iterator found = mProcessConcurrentCodecsMap.find(pid);
if (found != mProcessConcurrentCodecsMap.end()) {
appConcurrentCodecs = found->second.mCurrent[codecBucket];
}
// Process/Application's current pixel count.
long pixelCount = 0;
std::map<int32_t, PixelCount>::iterator it = mProcessPixelsMap.find(pid);
if (it != mProcessPixelsMap.end()) {
pixelCount = it->second.mCurrent;
}
// calculate the usageTime as:
// MediaCodecStopped.clientConfig.timeStamp -
// MediaCodecStarted.clientConfig.timeStamp
int64_t usageTime = 0;
ClientConfigMap::iterator entry = mClientConfigMap.find(clientConfig.clientInfo.id);
if (entry != mClientConfigMap.end()) {
usageTime = clientConfig.timeStamp - entry->second.timeStamp;
// And we can erase this config now.
mClientConfigMap.erase(entry);
} else {
ALOGW("%s: Start Config is missing!", __func__);
}
int result = stats_write(
MEDIA_CODEC_STOPPED,
clientConfig.clientInfo.uid,
clientConfig.id,
clientConfig.clientInfo.name.c_str(),
static_cast<int32_t>(clientConfig.codecType),
clientConfig.isEncoder,
isHardwareCodec(clientConfig.codecType),
clientConfig.width, clientConfig.height,
systemConcurrentCodecs,
appConcurrentCodecs,
pixelCount,
usageTime);
ALOGV("%s: Pushed MEDIA_CODEC_STOPPED atom: "
"Process[pid(%d): uid(%d)] "
"Codec: [%s: %ju] is %s %s "
"Timestamp: %jd Usage time: %jd "
"Resolution: %d x %d "
"ConcurrentCodec[%d]={System: %d App: %d} "
"result: %d",
__func__,
pid, clientConfig.clientInfo.uid,
clientConfig.clientInfo.name.c_str(),
clientConfig.id,
getCodecType(clientConfig.codecType),
clientConfig.isEncoder? "encoder" : "decoder",
clientConfig.timeStamp, usageTime,
clientConfig.width, clientConfig.height,
codecBucket, systemConcurrentCodecs, appConcurrentCodecs,
result);
}
void ResourceManagerMetrics::onProcessTerminated(int32_t pid, uid_t uid) {
std::scoped_lock lock(mLock);
// post MediaCodecConcurrentUsageReported for this terminated pid.
pushConcurrentUsageReport(pid, uid);
}
void ResourceManagerMetrics::pushConcurrentUsageReport(int32_t pid, uid_t uid) {
// Process/Application peak concurrent codec usage
std::map<int32_t, ConcurrentCodecs>::iterator found = mProcessConcurrentCodecsMap.find(pid);
if (found == mProcessConcurrentCodecsMap.end()) {
ALOGI("%s: No MEDIA_CODEC_CONCURRENT_USAGE_REPORTED atom Entry for: "
"Application[pid(%d): uid(%d)]", __func__, pid, uid);
return;
}
const ConcurrentCodecsMap& codecsMap = found->second.mPeak;
int peakHwAudioEncoderCount = codecsMap[HwAudioEncoder];
int peakHwAudioDecoderCount = codecsMap[HwAudioDecoder];
int peakHwVideoEncoderCount = codecsMap[HwVideoEncoder];
int peakHwVideoDecoderCount = codecsMap[HwVideoDecoder];
int peakHwImageEncoderCount = codecsMap[HwImageEncoder];
int peakHwImageDecoderCount = codecsMap[HwImageDecoder];
int peakSwAudioEncoderCount = codecsMap[SwAudioEncoder];
int peakSwAudioDecoderCount = codecsMap[SwAudioDecoder];
int peakSwVideoEncoderCount = codecsMap[SwVideoEncoder];
int peakSwVideoDecoderCount = codecsMap[SwVideoDecoder];
int peakSwImageEncoderCount = codecsMap[SwImageEncoder];
int peakSwImageDecoderCount = codecsMap[SwImageDecoder];
long peakPixels = 0;
std::map<int32_t, PixelCount>::iterator it = mProcessPixelsMap.find(pid);
if (it == mProcessPixelsMap.end()) {
ALOGI("%s: No Video Codec Entry for Application[pid(%d): uid(%d)]",
__func__, pid, uid);
} else {
peakPixels = it->second.mPeak;
}
std::string peakPixelsLog("Peak Pixels: " + std::to_string(peakPixels));
std::stringstream peakCodecLog;
peakCodecLog << "Peak { ";
std::stringstream logMsg;
if (getLogMessage(peakHwAudioEncoderCount, peakSwAudioEncoderCount, logMsg)) {
peakCodecLog << "AudioEnc[" << logMsg.str();
}
if (getLogMessage(peakHwAudioDecoderCount, peakSwAudioDecoderCount, logMsg)) {
peakCodecLog << "AudioDec[" << logMsg.str();
}
if (getLogMessage(peakHwVideoEncoderCount, peakSwVideoEncoderCount, logMsg)) {
peakCodecLog << "VideoEnc[" << logMsg.str();
}
if (getLogMessage(peakHwVideoDecoderCount, peakSwVideoDecoderCount, logMsg)) {
peakCodecLog << "VideoDec[" << logMsg.str();
}
if (getLogMessage(peakHwImageEncoderCount, peakSwImageEncoderCount, logMsg)) {
peakCodecLog << "ImageEnc[" << logMsg.str();
}
if (getLogMessage(peakHwImageDecoderCount, peakSwImageDecoderCount, logMsg)) {
peakCodecLog << "ImageDec[" << logMsg.str();
}
peakCodecLog << "}";
#ifdef ENABLE_MEDIA_CODEC_CONCURRENT_USAGE_REPORTED
int result = stats_write(
MEDIA_CODEC_CONCURRENT_USAGE_REPORTED,
uid,
peakHwVideoDecoderCount,
peakHwVideoEncoderCount,
peakSwVideoDecoderCount,
peakSwVideoEncoderCount,
peakHwAudioDecoderCount,
peakHwAudioEncoderCount,
peakSwAudioDecoderCount,
peakSwAudioEncoderCount,
peakHwImageDecoderCount,
peakHwImageEncoderCount,
peakSwImageDecoderCount,
peakSwImageEncoderCount,
peakPixels);
ALOGI("%s: Pushed MEDIA_CODEC_CONCURRENT_USAGE_REPORTED atom: "
"Process[pid(%d): uid(%d)] %s %s result: %d",
__func__, pid, uid, peakCodecLog.str().c_str(), peakPixelsLog.c_str(), result);
#else
ALOGI("%s: Concurrent Codec Usage Report for the Process[pid(%d): uid(%d)] is %s %s",
__func__, pid, uid, peakCodecLog.str().c_str(), peakPixelsLog.c_str());
#endif
}
void ResourceManagerMetrics::pushReclaimAtom(const ClientInfoParcel& clientInfo,
const std::vector<int>& priorities,
const std::vector<ClientInfo>& targetClients,
bool reclaimed) {
// Construct the metrics for codec reclaim as a pushed atom.
// 1. Information about the requester.
// - UID and the priority (oom score)
int32_t callingPid = clientInfo.pid;
int32_t requesterUid = clientInfo.uid;
std::string clientName = clientInfo.name;
int requesterPriority = priorities[0];
// 2. Information about the codec.
// - Name of the codec requested
// - Number of concurrent codecs running.
int32_t noOfConcurrentCodecs = 0;
std::map<std::string, int>::iterator found = mConcurrentResourceCountMap.find(clientName);
if (found != mConcurrentResourceCountMap.end()) {
noOfConcurrentCodecs = found->second;
}
// 3. Information about the Reclaim:
// - Status of reclaim request
// - How many codecs are reclaimed
// - For each codecs reclaimed, information of the process that it belonged to:
// - UID and the Priority (oom score)
int32_t reclaimStatus = MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_SUCCESS;
if (!reclaimed) {
if (targetClients.size() == 0) {
// No clients to reclaim from
reclaimStatus =
MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_FAILED_NO_CLIENTS;
} else {
// Couldn't reclaim resources from the clients
reclaimStatus =
MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED__RECLAIM_STATUS__RECLAIM_FAILED_RECLAIM_RESOURCES;
}
}
int32_t noOfCodecsReclaimed = targetClients.size();
int32_t targetIndex = 1;
for (const ClientInfo& targetClient : targetClients) {
int targetPriority = priorities[targetIndex];
// Post the pushed atom
int result = stats_write(
MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED,
requesterUid,
requesterPriority,
clientName.c_str(),
noOfConcurrentCodecs,
reclaimStatus,
noOfCodecsReclaimed,
targetIndex,
targetClient.mUid,
targetPriority);
ALOGI("%s: Pushed MEDIA_CODEC_RECLAIM_REQUEST_COMPLETED atom: "
"Requester[pid(%d): uid(%d): priority(%d)] "
"Codec: [%s] "
"No of concurrent codecs: %d "
"Reclaim Status: %d "
"No of codecs reclaimed: %d "
"Target[%d][pid(%d): uid(%d): priority(%d)] result: %d",
__func__, callingPid, requesterUid, requesterPriority,
clientName.c_str(), noOfConcurrentCodecs,
reclaimStatus, noOfCodecsReclaimed,
targetIndex, targetClient.mPid, targetClient.mUid, targetPriority, result);
targetIndex++;
}
}
void ResourceManagerMetrics::increaseConcurrentCodecs(int32_t pid,
CodecBucket codecBucket) {
// Increase the codec usage across the system.
mConcurrentCodecsMap[codecBucket]++;
// Now update the codec usage for this (pid) process.
std::map<int32_t, ConcurrentCodecs>::iterator found = mProcessConcurrentCodecsMap.find(pid);
if (found == mProcessConcurrentCodecsMap.end()) {
ConcurrentCodecs codecs;
codecs.mCurrent[codecBucket] = 1;
codecs.mPeak[codecBucket] = 1;
auto added = mProcessConcurrentCodecsMap.emplace(pid, codecs);
found = added.first;
} else {
found->second.mCurrent[codecBucket]++;
// Check if it's the peak count for this slot.
if (found->second.mPeak[codecBucket] < found->second.mCurrent[codecBucket]) {
found->second.mPeak[codecBucket] = found->second.mCurrent[codecBucket];
}
}
switch (codecBucket) {
case HwVideoEncoder:
case HwVideoDecoder:
case SwVideoEncoder:
case SwVideoDecoder:
if (codecBucket == HwVideoEncoder || codecBucket == HwVideoDecoder) {
found->second.mHWVideoCodecs++;
} else {
found->second.mSWVideoCodecs++;
}
found->second.mVideoCodecs++;
break;
case HwAudioEncoder:
case HwAudioDecoder:
case SwAudioEncoder:
case SwAudioDecoder:
found->second.mAudioCodecs++;
break;
case HwImageEncoder:
case HwImageDecoder:
case SwImageEncoder:
case SwImageDecoder:
found->second.mImageCodecs++;
break;
default:
break;
}
}
void ResourceManagerMetrics::decreaseConcurrentCodecs(int32_t pid,
CodecBucket codecBucket) {
// Decrease the codec usage across the system.
if (mConcurrentCodecsMap[codecBucket] > 0) {
mConcurrentCodecsMap[codecBucket]--;
}
// Now update the codec usage for this (pid) process.
std::map<int32_t, ConcurrentCodecs>::iterator found = mProcessConcurrentCodecsMap.find(pid);
if (found != mProcessConcurrentCodecsMap.end()) {
if (found->second.mCurrent[codecBucket] > 0) {
found->second.mCurrent[codecBucket]--;
}
switch (codecBucket) {
case HwVideoEncoder:
case HwVideoDecoder:
case SwVideoEncoder:
case SwVideoDecoder:
if (codecBucket == HwVideoEncoder || codecBucket == HwVideoDecoder) {
found->second.mHWVideoCodecs--;
} else {
found->second.mSWVideoCodecs--;
}
found->second.mVideoCodecs--;
break;
case HwAudioEncoder:
case HwAudioDecoder:
case SwAudioEncoder:
case SwAudioDecoder:
found->second.mAudioCodecs--;
break;
case HwImageEncoder:
case HwImageDecoder:
case SwImageEncoder:
case SwImageDecoder:
found->second.mImageCodecs--;
break;
default:
break;
}
}
}
void ResourceManagerMetrics::increasePixelCount(int32_t pid, long pixels) {
// Now update the current pixel usage for this (pid) process.
std::map<int32_t, PixelCount>::iterator found = mProcessPixelsMap.find(pid);
if (found == mProcessPixelsMap.end()) {
PixelCount pixelCount {pixels, pixels};
mProcessPixelsMap.emplace(pid, pixelCount);
} else {
if (__builtin_add_overflow(found->second.mCurrent, pixels, &found->second.mCurrent)) {
ALOGI("Pixel Count overflow");
return;
}
// Check if it's the peak count for this slot.
if (found->second.mPeak < found->second.mCurrent) {
found->second.mPeak = found->second.mCurrent;
}
}
}
void ResourceManagerMetrics::updatePixelCount(int32_t pid, long newPixels, long lastPixels) {
// Since there is change in resolution, decrease it by last pixels and
// increase it by new pixels.
decreasePixelCount(pid, lastPixels);
increasePixelCount(pid, newPixels);
}
void ResourceManagerMetrics::decreasePixelCount(int32_t pid, long pixels) {
// Now update the current pixel usage for this (pid) process.
std::map<int32_t, PixelCount>::iterator found = mProcessPixelsMap.find(pid);
if (found != mProcessPixelsMap.end()) {
if (found->second.mCurrent < pixels) {
found->second.mCurrent = 0;
} else {
if (__builtin_sub_overflow(found->second.mCurrent, pixels, &found->second.mCurrent)) {
ALOGI("Pixel Count overflow");
return;
}
}
}
}
long ResourceManagerMetrics::getPeakConcurrentPixelCount(int pid) const {
std::map<int32_t, PixelCount>::const_iterator found = mProcessPixelsMap.find(pid);
if (found != mProcessPixelsMap.end()) {
return found->second.mPeak;
}
return 0;
}
long ResourceManagerMetrics::getCurrentConcurrentPixelCount(int pid) const {
std::map<int32_t, PixelCount>::const_iterator found = mProcessPixelsMap.find(pid);
if (found != mProcessPixelsMap.end()) {
return found->second.mCurrent;
}
return 0;
}
} // namespace android