gcc/ada/a-caldel.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
   4 --                                                                          --
   5 --                   A D A . C A L E N D A R . D E L A Y S                  --
   6 --                                                                          --
   7 --                                  S p e c                                 --
   8 --                                                                          --
   9 --                             $Revision: 1.16 $                            --
  10 --                                                                          --
  11 --          Copyright (C) 1992-1998, Free Software Foundation, Inc.         --
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  32 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
  33 -- State University (http://www.gnat.com).                                  --
  34 --                                                                          --
  35 ------------------------------------------------------------------------------
  36
  37 --  This package implements Calendar.Time delays using protected objects.
  38
  39 --  Note: the compiler generates direct calls to this interface, in the
  40 --  processing of time types.
  41
  42 package Ada.Calendar.Delays is
  43
  44    procedure Delay_For (D : Duration);
  45    --  Delay until an interval of length (at least) D seconds has passed,
  46    --  or the task is aborted to at least the current ATC nesting level.
  47    --  This is an abort completion point.
  48    --  The body of this procedure must perform all the processing
  49    --  required for an abortion point.
  50
  51    procedure Delay_Until (T : Time);
  52    --  Delay until Clock has reached (at least) time T,
  53    --  or the task is aborted to at least the current ATC nesting level.
  54    --  The body of this procedure must perform all the processing
  55    --  required for an abortion point.
  56
  57    function To_Duration (T : Time) return Duration;
  58
  59 end Ada.Calendar.Delays;