Ada Programming/Keywords/delay

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Ada Lovelace 1838.jpg

Delay statements[edit]

Relative delays[edit]

delay Wait_Time;

The Ravenscar profile forbids the use of the relative delay statement:

pragma Restrictions (No_Relative_Delay)

This language feature is only available in Ada 2005.

Absolute delays[edit]

delay until Next_Time;

Select statements[edit]

Delay alternative[edit]

Selective accept:

select
   when Cond =>
      accept_statement
      statements
or
  delay_alternative
end select;

Timed entry call[edit]

select
   entry_call_alternative
or
   delay_alternative
end select;

Asynchronous transfer of control[edit]

select
   delay until Abort_Time;
   statements
then abort
   abortable_part
end select;

See also[edit]

Wikibook[edit]

Ada Reference Manual[edit]

Ada Quality and Style Guide[edit]



Ada Keywords
abort else new return
abs elsif not reverse
abstract (Ada 95) end null
accept entry select
access exception of separate
aliased (Ada 95) exit or some (Ada 2012)
all others subtype
and for out synchronized (Ada 2005)
array function overriding (Ada 2005)
at tagged (Ada 95)
generic package task
begin goto pragma terminate
body private then
if procedure type
case in protected (Ada 95)
constant interface (Ada 2005) until (Ada 95)
is raise use
declare range
delay limited record when
delta loop rem while
digits renames with
do mod requeue (Ada 95) xor