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Commit c161174e authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Automerger Merge Worker
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Merge "Synchronize native ApkAssets data" into sc-dev am: 09154947 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14328728

Change-Id: I71345ec03bca91e58520f565956e9cb13bfcc538
parents a01c1a23 09154947

core/jni/android_content_res_ApkAssets.cpp

+73 −48
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


#define ATRACE_TAG ATRACE_TAG_RESOURCES



#include <mutex>



#include "signal.h"



#include "android-base/logging.h"
@@ -26,6 +28,7 @@ 
#include "utils/misc.h"

#include "utils/Trace.h"



#include "android_content_res_ApkAssets.h"

#include "android_util_AssetManager_private.h"

#include "core_jni_helpers.h"

#include "jni.h"
@@ -72,6 +75,19 @@ enum : format_type_t { 
  FORMAT_DIRECTORY = 3,

};



Guarded<std::unique_ptr<const ApkAssets>>& ApkAssetsFromLong(jlong ptr) {

    return *reinterpret_cast<Guarded<std::unique_ptr<const ApkAssets>>*>(ptr);

}



static jlong CreateGuardedApkAssets(std::unique_ptr<const ApkAssets> assets) {

    auto guarded_assets = new Guarded<std::unique_ptr<const ApkAssets>>(std::move(assets));

    return reinterpret_cast<jlong>(guarded_assets);

}



static void DeleteGuardedApkAssets(Guarded<std::unique_ptr<const ApkAssets>>& apk_assets) {

    delete &apk_assets;

}



class LoaderAssetsProvider : public AssetsProvider {

 public:

  static std::unique_ptr<AssetsProvider> Create(JNIEnv* env, jobject assets_provider) {
@@ -227,7 +243,7 @@ static jlong NativeLoad(JNIEnv* env, jclass /*clazz*/, const format_type_t forma 
    jniThrowException(env, "java/io/IOException", error_msg.c_str());

    return 0;

  }

  return reinterpret_cast<jlong>(apk_assets.release());

  return CreateGuardedApkAssets(std::move(apk_assets));

}



static jlong NativeLoadFromFd(JNIEnv* env, jclass /*clazz*/, const format_type_t format,
@@ -279,7 +295,7 @@ static jlong NativeLoadFromFd(JNIEnv* env, jclass /*clazz*/, const format_type_t 
    jniThrowException(env, "java/io/IOException", error_msg.c_str());

    return 0;

  }

  return reinterpret_cast<jlong>(apk_assets.release());

  return CreateGuardedApkAssets(std::move(apk_assets));

}



static jlong NativeLoadFromFdOffset(JNIEnv* env, jclass /*clazz*/, const format_type_t format,
@@ -347,12 +363,12 @@ static jlong NativeLoadFromFdOffset(JNIEnv* env, jclass /*clazz*/, const format_ 
    jniThrowException(env, "java/io/IOException", error_msg.c_str());

    return 0;

  }

  return reinterpret_cast<jlong>(apk_assets.release());

  return CreateGuardedApkAssets(std::move(apk_assets));

}



static jlong NativeLoadEmpty(JNIEnv* env, jclass /*clazz*/, jint flags, jobject assets_provider) {

  auto apk_assets = ApkAssets::Load(LoaderAssetsProvider::Create(env, assets_provider), flags);

  return reinterpret_cast<jlong>(apk_assets.release());

  return CreateGuardedApkAssets(std::move(apk_assets));

}



// STOPSHIP (b/159041693): Revert signal handler when reason for issue is found.
@@ -383,7 +399,9 @@ static void DestroyErrorHandler(int sig, siginfo_t* info, void* ucontext) { 
}



static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {

  auto apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    {

        auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

        auto apk_assets = scoped_apk_assets->get();

        destroy_info << "{ptr=" << apk_assets;

        if (apk_assets != nullptr) {

            destroy_info << ", name='" << apk_assets->GetDebugName() << "'"
@@ -391,19 +409,19 @@ static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) { 
                         << ", {arsc=" << apk_assets->GetLoadedArsc();

            if (auto arsc = apk_assets->GetLoadedArsc()) {

                destroy_info << ", strings=" << arsc->GetStringPool()

                   << ", packages=" << &arsc->GetPackages()

                   << " [";

                             << ", packages=" << &arsc->GetPackages() << " [";

                for (auto& package : arsc->GetPackages()) {

        destroy_info << "{unique_ptr=" << &package

                     << ", package=" << package.get() << "},";

                    destroy_info << "{unique_ptr=" << &package << ", package=" << package.get()

                                 << "},";

                }

                destroy_info << "]";

            }

            destroy_info << "}";

        }

        destroy_info << "}";

    }



  delete apk_assets;

    DeleteGuardedApkAssets(ApkAssetsFromLong(ptr));



    // Deleting the apk assets did not lead to a crash.

    destroy_info.str("");
@@ -411,7 +429,8 @@ static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) { 
}



static jstring NativeGetAssetPath(JNIEnv* env, jclass /*clazz*/, jlong ptr) {

  auto apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();

    if (auto path = apk_assets->GetPath()) {

        return env->NewStringUTF(path->data());

  }
@@ -419,17 +438,20 @@ static jstring NativeGetAssetPath(JNIEnv* env, jclass /*clazz*/, jlong ptr) { 
}



static jstring NativeGetDebugName(JNIEnv* env, jclass /*clazz*/, jlong ptr) {

  auto apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();

    return env->NewStringUTF(apk_assets->GetDebugName().c_str());

}



static jlong NativeGetStringBlock(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {

  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();

    return reinterpret_cast<jlong>(apk_assets->GetLoadedArsc()->GetStringPool());

}



static jboolean NativeIsUpToDate(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {

  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();

    return apk_assets->IsUpToDate() ? JNI_TRUE : JNI_FALSE;

}
@@ -439,7 +461,8 @@ static jlong NativeOpenXml(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring fil 
    return 0;

  }



  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

  auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

  auto apk_assets = scoped_apk_assets->get();

  std::unique_ptr<Asset> asset = apk_assets->GetAssetsProvider()->Open(

      path_utf8.c_str(),Asset::AccessMode::ACCESS_RANDOM);

  if (asset == nullptr) {
@@ -467,7 +490,8 @@ static jlong NativeOpenXml(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring fil 


static jobject NativeGetOverlayableInfo(JNIEnv* env, jclass /*clazz*/, jlong ptr,

                                         jstring overlayable_name) {

  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();



    const auto& packages = apk_assets->GetLoadedArsc()->GetPackages();

    if (packages.empty()) {
@@ -502,7 +526,8 @@ static jobject NativeGetOverlayableInfo(JNIEnv* env, jclass /*clazz*/, jlong ptr 
}



static jboolean NativeDefinesOverlayable(JNIEnv* env, jclass /*clazz*/, jlong ptr) {

  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);

    auto scoped_apk_assets = ScopedLock(ApkAssetsFromLong(ptr));

    auto apk_assets = scoped_apk_assets->get();



    const auto& packages = apk_assets->GetLoadedArsc()->GetPackages();

    if (packages.empty()) {

core/jni/android_content_res_ApkAssets.h

0 → 100644
+31 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2021 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifndef ANDROID_CONTENT_RES_APKASSETS_H

#define ANDROID_CONTENT_RES_APKASSETS_H



#include "androidfw/ApkAssets.h"

#include "androidfw/MutexGuard.h"



#include "jni.h"



namespace android {



Guarded<std::unique_ptr<const ApkAssets>>& ApkAssetsFromLong(jlong ptr);



} // namespace android



#endif // ANDROID_CONTENT_RES_APKASSETS_H

core/jni/android_util_AssetManager.cpp

+5 −2
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 
#include "androidfw/ResourceTypes.h"

#include "androidfw/ResourceUtils.h"



#include "android_content_res_ApkAssets.h"

#include "android_util_AssetManager_private.h"

#include "core_jni_helpers.h"

#include "jni.h"
@@ -50,9 +51,9 @@ 
#include "nativehelper/ScopedStringChars.h"

#include "nativehelper/ScopedUtfChars.h"

#include "utils/Log.h"

#include "utils/misc.h"

#include "utils/String8.h"

#include "utils/Trace.h"

#include "utils/misc.h"



extern "C" int capget(cap_user_header_t hdrp, cap_user_data_t datap);

extern "C" int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
@@ -307,7 +308,9 @@ static void NativeSetApkAssets(JNIEnv* env, jclass /*clazz*/, jlong ptr, 
    if (env->ExceptionCheck()) {

      return;

    }

    apk_assets.push_back(reinterpret_cast<const ApkAssets*>(apk_assets_native_ptr));



    auto scoped_assets = ScopedLock(ApkAssetsFromLong(apk_assets_native_ptr));

    apk_assets.push_back(scoped_assets->get());

  }



  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));

libs/androidfw/LoadedArsc.cpp

+0 −3
Original line number Diff line number Diff line
@@ -70,9 +70,6 @@ struct TypeSpecBuilder { 


}  // namespace



LoadedPackage::LoadedPackage() = default;

LoadedPackage::~LoadedPackage() = default;



// Precondition: The header passed in has already been verified, so reading any fields and trusting

// the ResChunk_header is safe.

static bool VerifyResTableType(incfs::map_ptr<ResTable_type> header) {

libs/androidfw/include/androidfw/AssetManager2.h

+1 −0
Original line number Diff line number Diff line
@@ -94,6 +94,7 @@ class AssetManager2 { 
  };



  AssetManager2();

  explicit AssetManager2(AssetManager2&& other) = default;



  // Sets/resets the underlying ApkAssets for this AssetManager. The ApkAssets

  // are not owned by the AssetManager, and must have a longer lifetime.