Merge "StagingManager: Make commitSession async."

import android.annotation.NonNull;

import android.content.pm.PackageInstaller;

import android.content.pm.ParceledListSlice;

import android.os.Handler;

import android.util.SparseArray;

import com.android.internal.annotations.GuardedBy;

import com.android.internal.os.BackgroundThread;

import java.util.ArrayList;

import java.util.List;

    private static final String TAG = "StagingManager";

    private final PackageManagerService mPm;

    private final Handler mBgHandler;

    // STOPSHIP: This is a temporary mock implementation of staged sessions. This variable

    //           shouldn't be needed at all.

    StagingManager(PackageManagerService pm) {

        mPm = pm;

        mBgHandler = BackgroundThread.getHandler();

    }

    private void updateStoredSession(@NonNull PackageInstallerSession sessionInfo) {

        synchronized (mStagedSessions) {

            PackageInstallerSession storedSession = mStagedSessions.get(sessionInfo.sessionId);

            if (storedSession == null) {

                throw new IllegalStateException("Attempting to change state of a session not "

                        + "known to StagingManager");

            }

            // storedSession might be null if a call to abortSession was made before the session

            // is updated.

            if (storedSession != null) {

                mStagedSessions.put(sessionInfo.sessionId, sessionInfo);

            }

        }

    }

    ParceledListSlice<PackageInstaller.SessionInfo> getSessions() {

        final List<PackageInstaller.SessionInfo> result = new ArrayList<>();

    void commitSession(@NonNull PackageInstallerSession sessionInfo) {

        updateStoredSession(sessionInfo);

        mBgHandler.post(() -> {

            // TODO(b/118865310): Dispatch the session to apexd/PackageManager for verification. For

            //                    now we directly mark it as ready.

            sessionInfo.setStagedSessionReady();

            mPm.sendSessionUpdatedBroadcast(sessionInfo.generateInfo(), sessionInfo.userId);

        });

    }

    void createSession(@NonNull PackageInstallerSession sessionInfo) {