More backup tests
diff --git a/core/jni/android_backup_FileBackupHelper.cpp b/core/jni/android_backup_FileBackupHelper.cpp
new file mode 100644
index 0000000..e8d60a0
--- /dev/null
+++ b/core/jni/android_backup_FileBackupHelper.cpp
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "JNIHelp.h"
+#include <android_runtime/AndroidRuntime.h>
+
+#include <utils/backup_helpers.h>
+
+namespace android
+{
+
+static jfieldID s_descriptorField;
+
+static int
+performBackup_native(JNIEnv* env, jstring basePath,
+ jobject oldSnapshot, jobject newSnapshot,
+ jobject data, jobjectArray files)
+{
+ int err;
+
+ // all parameters have already been checked against null
+
+ int oldSnapshotFD = env->GetIntField(oldSnapshot, s_descriptorField);
+ int newSnapshotFD = env->GetIntField(newSnapshot, s_descriptorField);
+ int dataFD = env->GetIntField(data, s_descriptorField);
+
+ char const* basePathUTF = env->GetStringUTFChars(basePath, NULL);
+ const int fileCount = env->GetArrayLength(files);
+ char const** filesUTF = (char const**)malloc(sizeof(char*)*fileCount);
+ for (int i=0; i<fileCount; i++) {
+ filesUTF[i] = env->GetStringUTFChars((jstring)env->GetObjectArrayElement(files, i), NULL);
+ }
+
+ err = back_up_files(oldSnapshotFD, newSnapshotFD, dataFD, basePathUTF, filesUTF, fileCount);
+
+ for (int i=0; i<fileCount; i++) {
+ env->ReleaseStringUTFChars((jstring)env->GetObjectArrayElement(files, i), filesUTF[i]);
+ }
+ free(filesUTF);
+ env->ReleaseStringUTFChars(basePath, basePathUTF);
+
+ return err;
+}
+
+static const JNINativeMethod g_methods[] = {
+ { "performBackup_native",
+ "(Ljava/lang/String;Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;"
+ "Ljava/io/FileDescriptor;[Ljava/lang/String;)I",
+ (void*)performBackup_native },
+};
+
+int register_android_backup_FileBackupHelper(JNIEnv* env)
+{
+ jclass clazz;
+
+ clazz = env->FindClass("java/io/FileDescriptor");
+ LOG_FATAL_IF(clazz == NULL, "Unable to find class java.io.FileDescriptor");
+ s_descriptorField = env->GetFieldID(clazz, "descriptor", "I");
+ LOG_FATAL_IF(s_descriptorField == NULL,
+ "Unable to find descriptor field in java.io.FileDescriptor");
+
+ return AndroidRuntime::registerNativeMethods(env, "android/backup/FileBackupHelper",
+ g_methods, NELEM(g_methods));
+}
+
+}