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A pointer to a timeval structure where the function can store the time. The struct timeval contains the following members:
  • time_t tv_sec — the number of seconds since the start of the Unix Epoch.
  • suseconds_t tv_usec — the number of microseconds. The gettimeofday() function returns the current time in when in seconds and microseconds, since the Unix Epoch, 00:00:00 January 1, 1970 Coordinated Universal Time (UTC) (formerly known as Greenwich Mean Time (GMT)). The gettimeofday() function is provided for porting existing code. You shouldn't use it in new code; use clock_gettime() instead.
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