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- ------------------------------------------------------------------------------
- -- --
- -- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
- -- --
- -- S Y S T E M . T A S K I N G . Q U E U I N G --
- -- --
- -- S p e c --
- -- --
- -- $Revision: 1.5 $ --
- -- --
- -- Copyright (c) 1991,1992,1993,1994, FSU, All Rights Reserved --
- -- --
- -- GNARL is free software; you can redistribute it and/or modify it under --
- -- terms of the GNU Library General Public License as published by the --
- -- Free Software Foundation; either version 2, or (at your option) any --
- -- later version. GNARL is distributed in the hope that it will be use- --
- -- ful, but but WITHOUT ANY WARRANTY; without even the implied warranty of --
- -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Gen- --
- -- eral Library Public License for more details. You should have received --
- -- a copy of the GNU Library General Public License along with GNARL; see --
- -- file COPYING.LIB. If not, write to the Free Software Foundation, 675 --
- -- Mass Ave, Cambridge, MA 02139, USA. --
- -- --
- ------------------------------------------------------------------------------
-
- with System.Tasking.Utilities;
- -- Used for, Utilities.ATCB_Ptr
-
- package System.Tasking.Queuing is
-
- procedure Enqueue (E : in out Entry_Queue; Call : Entry_Call_Link);
- -- Enqueue Call at the end of entry_queue E
-
- procedure Dequeue (E : in out Entry_Queue; Call : Entry_Call_Link);
- -- Dequeue Call from entry_queue E
-
- function Head (E : in Entry_Queue) return Entry_Call_Link;
- -- Return the head of entry_queue E
-
- procedure Dequeue_Head
- (E : in out Entry_Queue;
- Call : out Entry_Call_Link);
- -- Remove and return the head of entry_queue E
-
- function Onqueue (Call : Entry_Call_Link) return Boolean;
- -- Return True if Call is on any entry_queue at all
-
- function Count_Waiting (E : in Entry_Queue) return Natural;
- -- Return number of calls on the waiting queue of E
-
- procedure Select_Task_Entry_Call
- (Acceptor : Utilities.ATCB_Ptr;
- Open_Accepts : Accept_List_Access;
- Call : out Entry_Call_Link;
- Selection : out Select_Index);
- -- Select an entry for rendezvous
-
- procedure Select_Protected_Entry_Call
- (Object : Protection_Access;
- Barriers : Barrier_Vector;
- Call : out Entry_Call_Link);
- -- Select an entry of a protected object
-
- end System.Tasking.Queuing;
-