1// 2// Copyright (C) 2016 The Android Open Source Project 3// 4// Licensed under the Apache License, Version 2.0 (the "License"); 5// you may not use this file except in compliance with the License. 6// You may obtain a copy of the License at 7// 8// http://www.apache.org/licenses/LICENSE-2.0 9// 10// Unless required by applicable law or agreed to in writing, software 11// distributed under the License is distributed on an "AS IS" BASIS, 12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13// See the License for the specific language governing permissions and 14// limitations under the License. 15// 16 17#ifndef UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ 18#define UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ 19 20#include <brillo/secure_blob.h> 21 22namespace chromeos_update_engine { 23 24// Initialize the xz compression unit. Call once before any call to 25// XzCompress(). 26void XzCompressInit(); 27 28// Compresses the input buffer |in| into |out| with xz. The compressed stream 29// will be the equivalent of running xz -9 --check=none 30bool XzCompress(const brillo::Blob& in, brillo::Blob* out); 31 32} // namespace chromeos_update_engine 33 34#endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_XZ_H_ 35