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Add new FileSourceProvider

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Summary: Add a new interface to JSC that allows loading a file lazily from disk, i.e. using mmap, instead of loading the whole file upfront and copying into the VM.

Reviewed By: michalgr

Differential Revision: D3534042

fbshipit-source-id: 98b193cc7b7e33248073e2556ea94ce3391507c7
This commit is contained in:
Tadeu Zagallo
2016-07-11 06:52:06 -07:00
committed by Facebook Github Bot 9
parent e5650560c0
commit 5d06918d07
11 changed files with 291 additions and 50 deletions
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5
ReactAndroid/src/main/java/com/facebook/react/XReactInstanceManagerImpl.java
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@@ -412,9 +412,12 @@ import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
}
private void recreateReactContextInBackgroundFromBundleFile() {
boolean useLazyBundle = mJSCConfig.getConfigMap().hasKey("useLazyBundle") ?
mJSCConfig.getConfigMap().getBoolean("useLazyBundle") : false;
recreateReactContextInBackground(
new JSCJavaScriptExecutor.Factory(mJSCConfig.getConfigMap()),
JSBundleLoader.createFileLoader(mApplicationContext, mJSBundleFile));
JSBundleLoader.createFileLoader(mApplicationContext, mJSBundleFile, useLazyBundle));
}
/**

2
ReactAndroid/src/main/java/com/facebook/react/cxxbridge/CatalystInstanceImpl.java
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@@ -161,7 +161,7 @@ public class CatalystInstanceImpl implements CatalystInstance {
MessageQueueThread moduleQueue,
ModuleRegistryHolder registryHolder);
/* package */ native void loadScriptFromAssets(AssetManager assetManager, String assetURL);
/* package */ native void loadScriptFromAssets(AssetManager assetManager, String assetURL, boolean useLazyBundle);
/* package */ native void loadScriptFromFile(String fileName, String sourceURL);
@Override

9
ReactAndroid/src/main/java/com/facebook/react/cxxbridge/JSBundleLoader.java
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@@ -28,11 +28,18 @@ public abstract class JSBundleLoader {
public static JSBundleLoader createFileLoader(
final Context context,
final String fileName) {
return createFileLoader(context, fileName, false);
}
public static JSBundleLoader createFileLoader(
final Context context,
final String fileName,
final boolean useLazyBundle) {
return new JSBundleLoader() {
@Override
public void loadScript(CatalystInstanceImpl instance) {
if (fileName.startsWith("assets://")) {
instance.loadScriptFromAssets(context.getAssets(), fileName);
instance.loadScriptFromAssets(context.getAssets(), fileName, useLazyBundle);
} else {
instance.loadScriptFromFile(fileName, fileName);
}