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Commit f3ddbb68 authored by Sudheer Shanka's avatar Sudheer Shanka Committed by android-build-merger
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Merge "Avoid excessive logging when the necessary proc file is unavailable."... 

Merge "Avoid excessive logging when the necessary proc file is unavailable." into oc-dev am: ab17493e
am: 599bc3f1

Change-Id: I3ad80361f65f6de1f06f9758219d02272b300c68
parents 18faa022 599bc3f1

core/java/com/android/internal/os/KernelUidCpuFreqTimeReader.java

+11 −0
Original line number Original line Diff line number Diff line
@@ -53,10 +53,21 @@ public class KernelUidCpuFreqTimeReader { 




    private SparseArray<long[]> mLastUidCpuFreqTimeMs = new SparseArray<>();

    private SparseArray<long[]> mLastUidCpuFreqTimeMs = new SparseArray<>();





    // We check the existence of proc file a few times (just in case it is not ready yet when we

    // start reading) and if it is not available, we simply ignore further read requests.

    private static final int TOTAL_READ_ERROR_COUNT = 5;

    private int mReadErrorCounter;

    private boolean mProcFileAvailable;



    public void readDelta(@Nullable Callback callback) {

    public void readDelta(@Nullable Callback callback) {

        if (!mProcFileAvailable && mReadErrorCounter >= TOTAL_READ_ERROR_COUNT) {

            return;

        }

        try (BufferedReader reader = new BufferedReader(new FileReader(UID_TIMES_PROC_FILE))) {

        try (BufferedReader reader = new BufferedReader(new FileReader(UID_TIMES_PROC_FILE))) {

            readDelta(reader, callback);

            readDelta(reader, callback);

            mProcFileAvailable = true;

        } catch (IOException e) {

        } catch (IOException e) {

            mReadErrorCounter++;

            Slog.e(TAG, "Failed to read " + UID_TIMES_PROC_FILE + ": " + e);

            Slog.e(TAG, "Failed to read " + UID_TIMES_PROC_FILE + ": " + e);

        }

        }

    }

    }