| /* |
| * Copyright (C) 2005-2017 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 _LIBS_LOG_LOG_TIME_H |
| #define _LIBS_LOG_LOG_TIME_H |
| |
| #include <stdint.h> |
| #include <time.h> |
| |
| /* struct log_time is a wire-format variant of struct timespec */ |
| #define NS_PER_SEC 1000000000ULL |
| |
| #ifndef __struct_log_time_defined |
| #define __struct_log_time_defined |
| |
| #ifdef __cplusplus |
| |
| /* |
| * NB: we did NOT define a copy constructor. This will result in structure |
| * no longer being compatible with pass-by-value which is desired |
| * efficient behavior. Also, pass-by-reference breaks C/C++ ABI. |
| */ |
| struct log_time { |
| public: |
| uint32_t tv_sec; /* good to Feb 5 2106 */ |
| uint32_t tv_nsec; |
| |
| static const uint32_t tv_sec_max = 0xFFFFFFFFUL; |
| static const uint32_t tv_nsec_max = 999999999UL; |
| |
| log_time(const timespec& T) |
| { |
| tv_sec = static_cast<uint32_t>(T.tv_sec); |
| tv_nsec = static_cast<uint32_t>(T.tv_nsec); |
| } |
| log_time(uint32_t sec, uint32_t nsec) |
| { |
| tv_sec = sec; |
| tv_nsec = nsec; |
| } |
| #ifdef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_ |
| #define __struct_log_time_private_defined |
| static const timespec EPOCH; |
| #endif |
| log_time() |
| { |
| } |
| #ifdef __linux__ |
| log_time(clockid_t id) |
| { |
| timespec T; |
| clock_gettime(id, &T); |
| tv_sec = static_cast<uint32_t>(T.tv_sec); |
| tv_nsec = static_cast<uint32_t>(T.tv_nsec); |
| } |
| #endif |
| log_time(const char* T) |
| { |
| const uint8_t* c = reinterpret_cast<const uint8_t*>(T); |
| tv_sec = c[0] | |
| (static_cast<uint32_t>(c[1]) << 8) | |
| (static_cast<uint32_t>(c[2]) << 16) | |
| (static_cast<uint32_t>(c[3]) << 24); |
| tv_nsec = c[4] | |
| (static_cast<uint32_t>(c[5]) << 8) | |
| (static_cast<uint32_t>(c[6]) << 16) | |
| (static_cast<uint32_t>(c[7]) << 24); |
| } |
| |
| /* timespec */ |
| bool operator== (const timespec& T) const |
| { |
| return (tv_sec == static_cast<uint32_t>(T.tv_sec)) |
| && (tv_nsec == static_cast<uint32_t>(T.tv_nsec)); |
| } |
| bool operator!= (const timespec& T) const |
| { |
| return !(*this == T); |
| } |
| bool operator< (const timespec& T) const |
| { |
| return (tv_sec < static_cast<uint32_t>(T.tv_sec)) |
| || ((tv_sec == static_cast<uint32_t>(T.tv_sec)) |
| && (tv_nsec < static_cast<uint32_t>(T.tv_nsec))); |
| } |
| bool operator>= (const timespec& T) const |
| { |
| return !(*this < T); |
| } |
| bool operator> (const timespec& T) const |
| { |
| return (tv_sec > static_cast<uint32_t>(T.tv_sec)) |
| || ((tv_sec == static_cast<uint32_t>(T.tv_sec)) |
| && (tv_nsec > static_cast<uint32_t>(T.tv_nsec))); |
| } |
| bool operator<= (const timespec& T) const |
| { |
| return !(*this > T); |
| } |
| |
| #ifdef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_ |
| log_time operator-= (const timespec& T); |
| log_time operator- (const timespec& T) const |
| { |
| log_time local(*this); |
| return local -= T; |
| } |
| log_time operator+= (const timespec& T); |
| log_time operator+ (const timespec& T) const |
| { |
| log_time local(*this); |
| return local += T; |
| } |
| #endif |
| |
| /* log_time */ |
| bool operator== (const log_time& T) const |
| { |
| return (tv_sec == T.tv_sec) && (tv_nsec == T.tv_nsec); |
| } |
| bool operator!= (const log_time& T) const |
| { |
| return !(*this == T); |
| } |
| bool operator< (const log_time& T) const |
| { |
| return (tv_sec < T.tv_sec) |
| || ((tv_sec == T.tv_sec) && (tv_nsec < T.tv_nsec)); |
| } |
| bool operator>= (const log_time& T) const |
| { |
| return !(*this < T); |
| } |
| bool operator> (const log_time& T) const |
| { |
| return (tv_sec > T.tv_sec) |
| || ((tv_sec == T.tv_sec) && (tv_nsec > T.tv_nsec)); |
| } |
| bool operator<= (const log_time& T) const |
| { |
| return !(*this > T); |
| } |
| |
| #ifdef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_ |
| log_time operator-= (const log_time& T); |
| log_time operator- (const log_time& T) const |
| { |
| log_time local(*this); |
| return local -= T; |
| } |
| log_time operator+= (const log_time& T); |
| log_time operator+ (const log_time& T) const |
| { |
| log_time local(*this); |
| return local += T; |
| } |
| #endif |
| |
| uint64_t nsec() const |
| { |
| return static_cast<uint64_t>(tv_sec) * NS_PER_SEC + tv_nsec; |
| } |
| |
| #ifdef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_ |
| static const char default_format[]; |
| |
| /* Add %#q for the fraction of a second to the standard library functions */ |
| char* strptime(const char* s, const char* format = default_format); |
| #endif |
| } __attribute__((__packed__)); |
| |
| #else |
| |
| typedef struct log_time { |
| uint32_t tv_sec; |
| uint32_t tv_nsec; |
| } __attribute__((__packed__)) log_time; |
| |
| #endif |
| |
| #endif |
| |
| #endif /* _LIBS_LOG_LOG_TIME_H */ |