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@ -70,10 +70,15 @@ Sets the :term:`CLOCK_REALTIME` to the time of day.
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The date, time, and ticks specified by ``time_of_day`` are all range-checked,
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and an error is returned if any one is out of its valid range.
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RTEMS can represent time points of this clock in nanoseconds ranging from
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1988-01-01T00:00:00.000000000Z to 2514-05-31T01:53:03.999999999Z. The future
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uptime of the system shall be in this range, otherwise the system behaviour is
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undefined.
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RTEMS can represent time points of the :term:`CLOCK_REALTIME` clock in
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nanoseconds ranging from 1988-01-01T00:00:00.000000000Z to
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2514-05-31T01:53:03.999999999Z. The future uptime of the system shall be in
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this range, otherwise the system behaviour is undefined. Due to implementation
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constraints, the time of day set by the directive shall be before
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2100-01-01:00:00.000000000Z. The latest valid time of day accepted by the
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POSIX `clock_settime()
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<https://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_settime.html>`_
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is 2400-01-01T00:00:00.999999999Z.
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The specified time is based on the configured :term:`clock tick` rate, see the
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:ref:`CONFIGURE_MICROSECONDS_PER_TICK` application configuration option.
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@ -102,6 +107,12 @@ The following constraints apply to this directive:
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* The directive may unblock a task. This may cause the calling task to be
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preempted.
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* The time of day set by the directive shall be 1988-01-01T00:00:00.000000000Z
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or later.
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* The time of day set by the directive shall be before
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2100-01-01T00:00:00.000000000Z.
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.. Generated from spec:/rtems/clock/if/get-tod
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.. raw:: latex
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