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LogCabin
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LogCabin
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Classes | |
| struct | CSystemClock |
| Wall clock in nanosecond granularity. More... | |
| struct | CSteadyClock |
| Monotonic clock in nanosecond granularity. More... | |
| struct | MockableClock |
| Reads the current time. More... | |
| class | SteadyTimeConverter |
| Used to convert one or more SteadyClock::time_point values into values of the SystemClock. More... | |
Typedefs | |
| typedef MockableClock < std::chrono::steady_clock > | SteadyClock |
| The best available clock on this system for uses where a steady, monotonic clock is desired. | |
| typedef MockableClock < std::chrono::system_clock > | SystemClock |
| A clock that reads wall time and is affected by NTP adjustments. | |
Functions | |
| int64_t | parseSignedDuration (const std::string &description) |
| Convert a human-readable description of a time duration into a number of nanoseconds. | |
| uint64_t | parseNonNegativeDuration (const std::string &description) |
| Convert a human-readable description of a time duration into a number of nanoseconds. | |
| void | sleep (SteadyClock::time_point wake) |
| Block the calling thread until the given time. | |
| void | sleep (std::chrono::nanoseconds duration) |
| Block the calling thread for the given duration. | |
| template<typename Clock , typename Duration > | |
| struct timespec | makeTimeSpec (const std::chrono::time_point< Clock, Duration > &when) |
| Convert a C++11 time point into a POSIX timespec. | |
| static __inline uint64_t | rdtsc () |
| Read the CPU's cycle counter. | |
Variables | |
| const clockid_t | STEADY_CLOCK_ID |
| The clock used by CSteadyClock. | |
| typedef MockableClock<std::chrono::steady_clock> LogCabin::Core::Time::SteadyClock |
| typedef MockableClock<std::chrono::system_clock> LogCabin::Core::Time::SystemClock |
| int64_t LogCabin::Core::Time::parseSignedDuration | ( | const std::string & | description | ) |
Convert a human-readable description of a time duration into a number of nanoseconds.
| description | Something like 10, 10s, -200ms, 3us, or -999ns. With no units, defaults to seconds. May be negative. Allowed units: ns, nanosecond(s), ms, millisecond(s), s, second(s), min, minute(s), h, hr, hour(s), d, day(s), w, wk, week(s), mo, month(s), y, yr, year(s). |
| std::runtime_error | If description could not be parsed successfully. |
| uint64_t LogCabin::Core::Time::parseNonNegativeDuration | ( | const std::string & | description | ) |
Convert a human-readable description of a time duration into a number of nanoseconds.
| description | Something like 10, 10s, 200ms, 3us, or 999ns. With no units, defaults to seconds. May not be negative. Allowed units: ns, nanosecond(s), ms, millisecond(s), s, second(s), min, minute(s), h, hr, hour(s), d, day(s), w, wk, week(s), mo, month(s), y, yr, year(s). |
| std::runtime_error | If description could not be parsed successfully. |
| void LogCabin::Core::Time::sleep | ( | SteadyClock::time_point | wake | ) |
| void LogCabin::Core::Time::sleep | ( | std::chrono::nanoseconds | duration | ) |
| struct timespec LogCabin::Core::Time::makeTimeSpec | ( | const std::chrono::time_point< Clock, Duration > & | when | ) | [read] |
| static __inline uint64_t LogCabin::Core::Time::rdtsc | ( | ) | [static] |
| const clockid_t LogCabin::Core::Time::STEADY_CLOCK_ID |
The clock used by CSteadyClock.
For now (2014), we can't use CLOCK_MONOTONIC_RAW in condition variables since glibc doesn't support that, so stick with CLOCK_MONOTONIC. This rate of this clock may change due to NTP adjustments, but at least it won't jump.
1.7.6.1
