SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
brief: |
  Gets a ${/glossary/clock-tick:/term} value which is at least delta
  microseconds in the future.
copyrights:
- Copyright (C) 2014, 2021 embedded brains GmbH (http://www.embedded-brains.de)
definition:
  default:
    attributes: null
    body: |
      ${../../type/if/interval:/name} us_per_tick;

      us_per_tick = ${../../config/if/get-microseconds-per-tick:/name}();

      /*
       * Add one additional tick, since we do not know the time to the clock
       * next tick.
       */
      return ${/score/watchdog/if/ticks-since-boot:/name} + 1
        + ( ${.:/params[0]/name} + us_per_tick - 1 ) / us_per_tick;
    params:
    - ${../../type/if/interval:/name} ${.:/params[0]/name}
    return: ${../../type/if/interval:/name}
  variants: []
description: null
enabled-by: true
index-entries: []
interface-type: function
links:
- role: interface-placement
  uid: header
- role: interface-ingroup
  uid: group
- role: constraint
  uid: /constraint/directive-not-pre-qualified
- role: constraint
  uid: /constraint/directive-ctx-any
- role: constraint
  uid: /constraint/directive-no-preempt
- role: constraint
  uid: /constraint/clock-driver
name: rtems_clock_tick_later_usec
notes: null
params:
- description: |
    is the delta value in microseconds.
  dir: null
  name: delta_in_usec
return:
  return: |
    Returns a ${/glossary/clock-tick:/term} counter value which is at least
    ${.:/params[0]/name} microseconds in the future.
  return-values: []
type: interface