1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/android/important_file_writer_android.h" 6 7 #include <string> 8 9 #include "base/android/jni_string.h" 10 #include "base/files/important_file_writer.h" 11 #include "base/threading/thread_restrictions.h" 12 #include "jni/ImportantFileWriterAndroid_jni.h" 13 14 namespace base { 15 namespace android { 16 17 static jboolean WriteFileAtomically(JNIEnv* env, 18 jclass /* clazz */, 19 jstring file_name, 20 jbyteArray data) { 21 // This is called on the UI thread during shutdown to save tab data, so 22 // needs to enable IO. 23 base::ThreadRestrictions::ScopedAllowIO allow_io; 24 std::string native_file_name; 25 base::android::ConvertJavaStringToUTF8(env, file_name, &native_file_name); 26 base::FilePath path(native_file_name); 27 int data_length = env->GetArrayLength(data); 28 jbyte* native_data = env->GetByteArrayElements(data, NULL); 29 std::string native_data_string(reinterpret_cast<char *>(native_data), 30 data_length); 31 bool result = base::ImportantFileWriter::WriteFileAtomically( 32 path, native_data_string); 33 env->ReleaseByteArrayElements(data, native_data, JNI_ABORT); 34 return result; 35 } 36 37 bool RegisterImportantFileWriterAndroid(JNIEnv* env) { 38 return RegisterNativesImpl(env); 39 } 40 41 } // namespace android 42 } // namespace base 43
