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Commit 6ea5ace7 authored by Calin Juravle's avatar Calin Juravle
Browse files

Add logic for recording dex files use on disk 

Add PackageDexUsage to handle the I/O operations of dex usage data. It
is responsible to encode, save and load dex

Test: runtest -x .../PackageDexUsageTests.java

Bug: 32871170

(cherry picked from commit 0318162a)

Change-Id: I6d483d480d62aa14cb1663560fd88092469a2835
parent cf3a4a68

services/core/java/com/android/server/pm/AbstractStatsBase.java

+3 −3
Original line number Diff line number Diff line
@@ -60,12 +60,12 @@ public abstract class AbstractStatsBase<T> { 
        return new AtomicFile(fname);

    }



    void writeNow(final T data) {

    protected void writeNow(final T data) {

        writeImpl(data);

        mLastTimeWritten.set(SystemClock.elapsedRealtime());

    }



    boolean maybeWriteAsync(final T data) {

    protected boolean maybeWriteAsync(final T data) {

        if (SystemClock.elapsedRealtime() - mLastTimeWritten.get() < WRITE_INTERVAL_MS

            && !PackageManagerService.DEBUG_DEXOPT) {

            return false;
@@ -105,7 +105,7 @@ public abstract class AbstractStatsBase<T> { 


    protected abstract void writeInternal(T data);



    void read(T data) {

    protected void read(T data) {

        if (mLock) {

            synchronized (data) {

                synchronized (mFileLock) {

services/core/java/com/android/server/pm/PackageManagerServiceUtils.java

+15 −0
Original line number Diff line number Diff line
@@ -24,11 +24,13 @@ import android.app.AppGlobals; 
import android.content.Intent;

import android.content.pm.PackageParser;

import android.content.pm.ResolveInfo;

import android.os.Build;

import android.os.RemoteException;

import android.os.UserHandle;

import android.system.ErrnoException;

import android.util.ArraySet;

import android.util.Log;

import dalvik.system.VMRuntime;

import libcore.io.Libcore;



import java.io.File;
@@ -197,4 +199,17 @@ public class PackageManagerServiceUtils { 
        }

        return sb.toString();

    }



    /**

     * Verifies that the given string {@code isa} is a valid supported isa on

     * the running device.

     */

    public static boolean checkISA(String isa) {

        for (String abi : Build.SUPPORTED_ABIS) {

            if (VMRuntime.getInstructionSet(abi).equals(isa)) {

                return true;

            }

        }

        return false;

    }

}

services/core/java/com/android/server/pm/dex/PackageDexUsage.java

0 → 100644
+512 −0

File added.

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services/tests/servicestests/src/com/android/server/pm/dex/PackageDexUsageTests.java

0 → 100644
+318 −0

File added.

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