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Commit 84029a8e authored by Ben Murdoch's avatar Ben Murdoch
Browse files

Add a function to query the available memory on the device. 

This function is called over JNI to determine wheter a particular
size of memory allocation will leave us in a low memory state.

Bug: 5142892
Change-Id: I3d0f85075497c2a374cd866b0223eecaaa4b5f46
parent 12136979

core/java/android/webkit/JniUtil.java

+12 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 


package android.webkit;



import android.app.ActivityManager;

import android.content.Context;

import android.net.Uri;

import android.provider.Settings;
@@ -175,5 +176,16 @@ class JniUtil { 
                Settings.Secure.WEB_AUTOFILL_QUERY_URL);

    }



    private static boolean canSatisfyMemoryAllocation(long bytesRequested) {

        checkInitialized();

        ActivityManager manager = (ActivityManager) sContext.getSystemService(

                Context.ACTIVITY_SERVICE);

        ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();

        manager.getMemoryInfo(memInfo);

        long leftToAllocate = memInfo.availMem - memInfo.threshold;

        return !memInfo.lowMemory && bytesRequested < leftToAllocate;

    }





    private static native boolean nativeUseChromiumHttpStack();

}