RTEMS 4.9.3 On-Line Library

Clock Manager Introduction

RTEMS POSIX API User's Guide

14.1: Introduction

The clock manager provides services two primary classes of services. The first focuses on obtaining and setting the current date and time. The other category of services focus on allowing a thread to delay for a specific length of time.

The directives provided by the clock manager are:

clock_gettime - Obtain Time of Day
clock_settime - Set Time of Day
clock_getres - Get Clock Resolution
sleep - Delay Process Execution
usleep - Delay Process Execution in Microseconds
nanosleep - Delay with High Resolution
gettimeofday - Get the Time of Day
time - Get time in seconds

RTEMS POSIX API User's Guide