|  | // | 
|  | // Copyright (C) 2016 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 UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ | 
|  | #define UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ | 
|  |  | 
|  | #include <brillo/secure_blob.h> | 
|  |  | 
|  | namespace chromeos_update_engine { | 
|  |  | 
|  | // Initialize the xz compression unit. Call once before any call to | 
|  | // XzCompress(). | 
|  | void XzCompressInit(); | 
|  |  | 
|  | // Compresses the input buffer |in| into |out| with xz. The compressed stream | 
|  | // will be the equivalent of running xz -9 --check=none | 
|  | bool XzCompress(const brillo::Blob& in, brillo::Blob* out); | 
|  |  | 
|  | }  // namespace chromeos_update_engine | 
|  |  | 
|  | #endif  // UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ |