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Commit e5430976 authored by Marco Ballesio's avatar Marco Ballesio
Browse files

CachedAppOptimizer: don't hardcode freezer path 

Test: verified that the freezer is correctly detected
Bug: 168058155
Change-Id: Ia594282f62ce934d124fa5f89da75cd58fd6ed78
parent 2d29d34f

services/core/java/com/android/server/am/CachedAppOptimizer.java

+7 −1
Original line number Diff line number Diff line
@@ -537,6 +537,12 @@ public final class CachedAppOptimizer { 
     */

    private static native int getBinderFreezeInfo(int pid);



    /**

     * Returns the path to be checked to verify whether the freezer is supported by this system.

     * @return absolute path to the file

     */

    private static native String getFreezerCheckPath();



    /**

     * Determines whether the freezer is supported by this system

     */
@@ -545,7 +551,7 @@ public final class CachedAppOptimizer { 
        FileReader fr = null;



        try {

            fr = new FileReader("/sys/fs/cgroup/uid_0/cgroup.freeze");

            fr = new FileReader(getFreezerCheckPath());

            char state = (char) fr.read();



            if (state == '1' || state == '0') {

services/core/jni/com_android_server_am_CachedAppOptimizer.cpp

+8 −1
Original line number Diff line number Diff line
@@ -278,6 +278,11 @@ static jint com_android_server_am_CachedAppOptimizer_getBinderFreezeInfo(JNIEnv 
    return retVal;

}



static jstring com_android_server_am_CachedAppOptimizer_getFreezerCheckPath(JNIEnv* env,

                                                                            jobject clazz) {

    return env->NewStringUTF(CGROUP_FREEZE_PATH);

}



static const JNINativeMethod sMethods[] = {

        /* name, signature, funcPtr */

        {"compactSystem", "()V", (void*)com_android_server_am_CachedAppOptimizer_compactSystem},
@@ -286,7 +291,9 @@ static const JNINativeMethod sMethods[] = { 
         (void*)com_android_server_am_CachedAppOptimizer_enableFreezerInternal},

        {"freezeBinder", "(IZ)V", (void*)com_android_server_am_CachedAppOptimizer_freezeBinder},

        {"getBinderFreezeInfo", "(I)I",

         (void*)com_android_server_am_CachedAppOptimizer_getBinderFreezeInfo}};

         (void*)com_android_server_am_CachedAppOptimizer_getBinderFreezeInfo},

        {"getFreezerCheckPath", "()Ljava/lang/String;",

         (void*)com_android_server_am_CachedAppOptimizer_getFreezerCheckPath}};



int register_android_server_am_CachedAppOptimizer(JNIEnv* env)

{