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Commit 4ed745d3 authored by Jeff Sharkey's avatar Jeff Sharkey
Browse files

Add code cache directory for apps. 

This provides a directory where apps can cache compiled or optimized
code generated at runtime.  The platform will delete all files in
this location on both app and platform upgrade.

Bug: 16187224
Change-Id: I641b21d841c436247f35ff235317e3a4ba520441
parent 78a13014

api/current.txt

+3 −0
Original line number Diff line number Diff line
@@ -7062,6 +7062,7 @@ package android.content { 
    method public abstract android.content.res.AssetManager getAssets();

    method public abstract java.io.File getCacheDir();

    method public abstract java.lang.ClassLoader getClassLoader();

    method public abstract java.io.File getCodeCacheDir();

    method public abstract android.content.ContentResolver getContentResolver();

    method public abstract java.io.File getDatabasePath(java.lang.String);

    method public abstract java.io.File getDir(java.lang.String, int);
@@ -7233,6 +7234,7 @@ package android.content { 
    method public android.content.Context getBaseContext();

    method public java.io.File getCacheDir();

    method public java.lang.ClassLoader getClassLoader();

    method public java.io.File getCodeCacheDir();

    method public android.content.ContentResolver getContentResolver();

    method public java.io.File getDatabasePath(java.lang.String);

    method public java.io.File getDir(java.lang.String, int);
@@ -29374,6 +29376,7 @@ package android.test.mock { 
    method public android.content.res.AssetManager getAssets();

    method public java.io.File getCacheDir();

    method public java.lang.ClassLoader getClassLoader();

    method public java.io.File getCodeCacheDir();

    method public android.content.ContentResolver getContentResolver();

    method public java.io.File getDatabasePath(java.lang.String);

    method public java.io.File getDir(java.lang.String, int);

core/java/android/app/ContextImpl.java

+12 −0
Original line number Diff line number Diff line
@@ -250,6 +250,8 @@ class ContextImpl extends Context { 
    private File mNoBackupFilesDir;

    @GuardedBy("mSync")

    private File mCacheDir;

    @GuardedBy("mSync")

    private File mCodeCacheDir;



    @GuardedBy("mSync")

    private File[] mExternalObbDirs;
@@ -1054,6 +1056,16 @@ class ContextImpl extends Context { 
        }

    }



    @Override

    public File getCodeCacheDir() {

        synchronized (mSync) {

            if (mCodeCacheDir == null) {

                mCodeCacheDir = new File(getDataDirFile(), "code_cache");

            }

            return createFilesDirLocked(mCodeCacheDir);

        }

    }



    @Override

    public File getExternalCacheDir() {

        // Operates on primary external storage

core/java/android/content/Context.java

+16 −0
Original line number Diff line number Diff line
@@ -866,6 +866,22 @@ public abstract class Context { 
     */

    public abstract File getCacheDir();



    /**

     * Returns the absolute path to the application specific cache directory on

     * the filesystem designed for storing cached code. The system will delete

     * any files stored in this location both when your specific application is

     * upgraded, and when the entire platform is upgraded.

     * <p>

     * This location is optimal for storing compiled or optimized code generated

     * by your application at runtime.

     * <p>

     * Apps require no extra permissions to read or write to the returned path,

     * since this path lives in their private storage.

     *

     * @return The path of the directory holding application code cache files.

     */

    public abstract File getCodeCacheDir();



    /**

     * Returns the absolute path to the directory on the primary external filesystem

     * (that is somewhere on {@link android.os.Environment#getExternalStorageDirectory()

core/java/android/content/ContextWrapper.java

+5 −0
Original line number Diff line number Diff line
@@ -231,6 +231,11 @@ public class ContextWrapper extends Context { 
        return mBase.getCacheDir();

    }



    @Override

    public File getCodeCacheDir() {

        return mBase.getCodeCacheDir();

    }



    @Override

    public File getExternalCacheDir() {

        return mBase.getExternalCacheDir();

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

+9 −0
Original line number Diff line number Diff line
@@ -309,6 +309,15 @@ public final class Installer extends SystemService { 
        return execute(builder.toString());

    }



    public int deleteCodeCacheFiles(String name, int userId) {

        StringBuilder builder = new StringBuilder("rmcodecache");

        builder.append(' ');

        builder.append(name);

        builder.append(' ');

        builder.append(userId);

        return execute(builder.toString());

    }



    public int createUserData(String name, int uid, int userId, String seinfo) {

        StringBuilder builder = new StringBuilder("mkuserdata");

        builder.append(' ');