The systemcall "gettimeofday" can be used to get the time in microseconds. The call takes two arguments.

1- struct timeval

2- struct timezone ( for timezone information). you can have second argument null.

timeval structure has two fields:

tv_sec ( represents time in seconds)

tv_usec ( represents time in microseconds )

the code snapshot is :

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struct timeval t_time;

gettimeofday(&t_time,NULL);