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/*
* 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 */
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