1 /* 2 * Copyright 2021 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 #pragma once 17 18 #include <cstdarg> 19 #include <cstdint> 20 21 /** 22 * This header is used for systems targeting syslog as their log target (i.e. 23 * Floss builds). 24 */ 25 26 /** 27 * We separately define these tags and map them to syslog levels because the 28 * log headers re-define LOG_DEBUG and LOG_INFO which are already existing in 29 * the syslog header. Also, LOG_TAG_VERBOSE doesn't actually exist in syslog 30 * definitions and needs to be mapped to another log level. 31 */ 32 constexpr uint32_t LOG_TAG_VERBOSE = 0x0; 33 constexpr uint32_t LOG_TAG_DEBUG = 0x1; 34 constexpr uint32_t LOG_TAG_INFO = 0x2; 35 constexpr uint32_t LOG_TAG_WARN = 0x3; 36 constexpr uint32_t LOG_TAG_ERROR = 0x4; 37 constexpr uint32_t LOG_TAG_FATAL = 0x5; 38 39 /** 40 * Write log to syslog. 41 */ 42 void write_syslog(int tag, const char* format, ...); 43