Move libnative{bridge,loader} to art/

This change moves system/core/libnative{bridge,loader} under art/.

Bug: 137364733
Test: m
Change-Id: I9be7333d00fcd3f36cd80520e50a30ea840187ad

1 files changed, 67 insertions, 0 deletions

diff --git a/libnativeloader/library_namespaces.h b/libnativeloader/library_namespaces.h
new file mode 100644
index 0000000000..7b3efff4df
--- /dev/null
+++ b/libnativeloader/library_namespaces.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+#pragma once
+#if !defined(__ANDROID__)
+#error "Not available for host"
+#endif
+
+#define LOG_TAG "nativeloader"
+
+#include "native_loader_namespace.h"
+
+#include <list>
+#include <string>
+
+#include <android-base/result.h>
+#include <jni.h>
+
+namespace android::nativeloader {
+
+using android::base::Result;
+
+// LibraryNamespaces is a singleton object that manages NativeLoaderNamespace
+// objects for an app process. Its main job is to create (and configure) a new
+// NativeLoaderNamespace object for a Java ClassLoader, and to find an existing
+// object for a given ClassLoader.
+class LibraryNamespaces {
+ public:
+  LibraryNamespaces() : initialized_(false), app_main_namespace_(nullptr) {}
+
+  LibraryNamespaces(LibraryNamespaces&&) = default;
+  LibraryNamespaces(const LibraryNamespaces&) = delete;
+  LibraryNamespaces& operator=(const LibraryNamespaces&) = delete;
+
+  void Initialize();
+  void Reset() {
+    namespaces_.clear();
+    initialized_ = false;
+    app_main_namespace_ = nullptr;
+  }
+  Result<NativeLoaderNamespace*> Create(JNIEnv* env, uint32_t target_sdk_version,
+                                        jobject class_loader, bool is_shared, jstring dex_path,
+                                        jstring java_library_path, jstring java_permitted_path);
+  NativeLoaderNamespace* FindNamespaceByClassLoader(JNIEnv* env, jobject class_loader);
+
+ private:
+  Result<void> InitPublicNamespace(const char* library_path);
+  NativeLoaderNamespace* FindParentNamespaceByClassLoader(JNIEnv* env, jobject class_loader);
+
+  bool initialized_;
+  NativeLoaderNamespace* app_main_namespace_;
+  std::list<std::pair<jweak, NativeLoaderNamespace>> namespaces_;
+};
+
+}  // namespace android::nativeloader