/************************************************* * Timestamp Functions Source File * * (C) 1999-2007 The Botan Project * *************************************************/ #include #include #include #include namespace Botan { /************************************************* * Timer Access Functions * *************************************************/ u64bit system_time() { return static_cast(std::time(0)); } u64bit system_clock() { return global_state().system_clock(); } /************************************************* * Default Timer clock reading * *************************************************/ u64bit Timer::clock() const { return combine_timers(std::time(0), std::clock(), CLOCKS_PER_SEC); } /************************************************* * Combine a two time values into a single one * *************************************************/ u64bit combine_timers(u32bit seconds, u32bit parts, u32bit parts_hz) { const u64bit NANOSECONDS_UNITS = 1000000000; parts *= (NANOSECONDS_UNITS / parts_hz); return ((seconds * NANOSECONDS_UNITS) + parts); } }