qi!2dZddlZddlmZGddeZy)z(System clock implementation for Pipecat.N) BaseClockc(eZdZdZdZdefdZdZy) SystemClockaA monotonic clock implementation using system time. Provides high-precision timing using the system's monotonic clock, which is not affected by system clock adjustments and is suitable for measuring elapsed time in real-time applications. cd|_y)zInitialize the system clock. The clock starts in an uninitialized state and must be started explicitly using the start() method before time measurement begins. rN)_timeselfs M/opt/pipecat/venv/lib/python3.12/site-packages/pipecat/clocks/system_clock.py__init__zSystemClock.__init__s  returncf|jdkDr!tj|jz SdS)zGet the elapsed time since the clock was started. Returns: The elapsed time in nanoseconds since start() was called. Returns 0 if the clock has not been started yet. r)rtime monotonic_nsrs r get_timezSystemClock.get_times+48::>t  "TZZ/HqHr c6tj|_y)zStart the clock and begin time measurement. Records the current monotonic time as the reference point for all subsequent get_time() calls. N)rrrrs r startzSystemClock.start's &&( r N)__name__ __module__ __qualname____doc__r intrrr r rrsI#I)r r)rrpipecat.clocks.base_clockrrrr r rs/ /)))r