1 /* 2 * Copyright (C) 2005-2017 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 _LIBS_LOG_LOG_TIME_H 18 #define _LIBS_LOG_LOG_TIME_H 19 20 #include <stdint.h> 21 22 /* struct log_time is a wire-format variant of struct timespec */ 23 #ifndef NS_PER_SEC 24 #define NS_PER_SEC 1000000000ULL 25 #endif 26 #ifndef US_PER_SEC 27 #define US_PER_SEC 1000000ULL 28 #endif 29 #ifndef MS_PER_SEC 30 #define MS_PER_SEC 1000ULL 31 #endif 32 33 #ifndef __struct_log_time_defined 34 #define __struct_log_time_defined 35 36 #define LOG_TIME_SEC(t) ((t)->tv_sec) 37 /* next power of two after NS_PER_SEC */ 38 #define LOG_TIME_NSEC(t) ((t)->tv_nsec & (UINT32_MAX >> 2)) 39 40 typedef struct log_time { 41 uint32_t tv_sec; 42 uint32_t tv_nsec; 43 } __attribute__((__packed__)) log_time; 44 45 #endif 46 47 #endif /* _LIBS_LOG_LOG_TIME_H */ 48
