projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| cacbc350 RK |
1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3084fecd | 3 | -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| cacbc350 | 4 | -- -- |
| 15f6d6e7 | 5 | -- SYSTEM.TASKING.ASYNC_DELAYS.ENQUEUE_CALENDAR -- |
| cacbc350 RK |
6 | -- -- |
| 7 | -- B o d y -- | |
| 8 | -- -- | |
| 06c565cc | 9 | -- Copyright (C) 1998-2024, Free Software Foundation, Inc. -- |
| cacbc350 RK |
10 | -- -- |
| 11 | -- GNARL is free software; you can redistribute it and/or modify it under -- | |
| 12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 748086b7 JJ |
13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| 14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| cacbc350 | 15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| 748086b7 JJ |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| 17 | -- -- | |
| 18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 | -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 | -- -- | |
| 22 | -- You should have received a copy of the GNU General Public License and -- | |
| 23 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 | -- <http://www.gnu.org/licenses/>. -- | |
| cacbc350 | 26 | -- -- |
| fbf5a39b AC |
27 | -- GNARL was developed by the GNARL team at Florida State University. -- |
| 28 | -- Extensive contributions were provided by Ada Core Technologies, Inc. -- | |
| cacbc350 RK |
29 | -- -- |
| 30 | ------------------------------------------------------------------------------ | |
| 31 | ||
| 32 | with Ada.Calendar.Delays; | |
| 90b51aaf | 33 | |
| 2838fa93 AC |
34 | with System.OS_Constants; |
| 35 | with System.OS_Primitives; | |
| cacbc350 RK |
36 | with System.Task_Primitives.Operations; |
| 37 | with System.Tasking.Initialization; | |
| 38 | ||
| 39 | function System.Tasking.Async_Delays.Enqueue_Calendar | |
| 90b51aaf AC |
40 | (T : Ada.Calendar.Time; |
| 41 | D : Delay_Block_Access) return Boolean | |
| cacbc350 RK |
42 | is |
| 43 | use type Ada.Calendar.Time; | |
| 2838fa93 AC |
44 | |
| 45 | package SOSC renames System.OS_Constants; | |
| 46 | package STPO renames System.Task_Primitives.Operations; | |
| 47 | ||
| 48 | RT_T : Duration := Ada.Calendar.Delays.To_Duration (T); | |
| 49 | ||
| cacbc350 RK |
50 | begin |
| 51 | if T <= Ada.Calendar.Clock then | |
| 52 | D.Timed_Out := True; | |
| 53 | System.Task_Primitives.Operations.Yield; | |
| 54 | return False; | |
| 55 | end if; | |
| 56 | ||
| 2838fa93 | 57 | -- T is expressed as a duration elapsed since the UNIX epoch, whereas |
| 818b578d | 58 | -- Time_Enqueue expects duration elapsed since the epoch of the Ada real- |
| 90b51aaf | 59 | -- time clock: compensate if necessary. |
| 2838fa93 | 60 | |
| 2838fa93 | 61 | -- Comparison "SOSC.CLOCK_RT_Ada = SOSC.CLOCK_REALTIME" is compile |
| 90b51aaf AC |
62 | -- time known, so turn warnings off. |
| 63 | ||
| 64 | pragma Warnings (Off); | |
| 2838fa93 AC |
65 | |
| 66 | if SOSC.CLOCK_RT_Ada /= SOSC.CLOCK_REALTIME then | |
| 67 | pragma Warnings (On); | |
| 68 | ||
| e3d9f448 | 69 | RT_T := RT_T - OS_Primitives.Clock + STPO.Monotonic_Clock; |
| 2838fa93 AC |
70 | end if; |
| 71 | ||
| cacbc350 RK |
72 | System.Tasking.Initialization.Defer_Abort |
| 73 | (System.Task_Primitives.Operations.Self); | |
| 2838fa93 | 74 | Time_Enqueue (RT_T, D); |
| cacbc350 RK |
75 | return True; |
| 76 | end System.Tasking.Async_Delays.Enqueue_Calendar; |