+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
--- --
--- S Y S T E M . T A S K I N G . R E N D E Z V O U S --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992-1998, Free Software Foundation, Inc. --
--- --
--- GNARL is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNARL was developed by the GNARL team at Florida State University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- Note: the compiler generates direct calls to this interface, via Rtsfind.
--- Any changes to this interface may require corresponding compiler changes.
-
-with Ada.Exceptions;
--- Used for, Exception_Id
-
-with System.Tasking.Protected_Objects.Entries;
--- used for Protection_Entries
-
-package System.Tasking.Rendezvous is
- -- This interface is described in the document
- -- Gnu Ada Runtime Library Interface (GNARLI).
-
- package STPE renames System.Tasking.Protected_Objects.Entries;
-
- procedure Task_Entry_Call
- (Acceptor : Task_ID;
- E : Task_Entry_Index;
- Uninterpreted_Data : System.Address;
- Mode : Call_Modes;
- Rendezvous_Successful : out Boolean);
- -- General entry call
-
- procedure Timed_Task_Entry_Call
- (Acceptor : Task_ID;
- E : Task_Entry_Index;
- Uninterpreted_Data : System.Address;
- Timeout : Duration;
- Mode : Delay_Modes;
- Rendezvous_Successful : out Boolean);
- -- Timed entry call without using ATC.
-
- procedure Call_Simple
- (Acceptor : Task_ID;
- E : Task_Entry_Index;
- Uninterpreted_Data : System.Address);
- -- Simple entry call
-
- procedure Cancel_Task_Entry_Call (Cancelled : out Boolean);
- -- Cancel pending task entry call
-
- procedure Requeue_Task_Entry
- (Acceptor : Task_ID;
- E : Task_Entry_Index;
- With_Abort : Boolean);
-
- procedure Requeue_Protected_To_Task_Entry
- (Object : STPE.Protection_Entries_Access;
- Acceptor : Task_ID;
- E : Task_Entry_Index;
- With_Abort : Boolean);
-
- procedure Selective_Wait
- (Open_Accepts : Accept_List_Access;
- Select_Mode : Select_Modes;
- Uninterpreted_Data : out System.Address;
- Index : out Select_Index);
- -- Selective wait
-
- procedure Timed_Selective_Wait
- (Open_Accepts : Accept_List_Access;
- Select_Mode : Select_Modes;
- Uninterpreted_Data : out System.Address;
- Timeout : Duration;
- Mode : Delay_Modes;
- Index : out Select_Index);
- -- Selective wait with timeout without using ATC.
-
- procedure Accept_Call
- (E : Task_Entry_Index;
- Uninterpreted_Data : out System.Address);
- -- Accept an entry call
-
- procedure Accept_Trivial (E : Task_Entry_Index);
- -- Accept an entry call that has no parameters and no body
-
- function Task_Count (E : Task_Entry_Index) return Natural;
- -- Return number of tasks waiting on the entry E (of current task)
-
- function Callable (T : Task_ID) return Boolean;
- -- Return T'CALLABLE
-
- type Task_Entry_Nesting_Depth is new Task_Entry_Index
- range 0 .. Max_Task_Entry;
-
- function Task_Entry_Caller (D : Task_Entry_Nesting_Depth) return Task_ID;
- -- Return E'Caller. This will only work if called from within an
- -- accept statement that is handling E, as required by the
- -- LRM (C.7.1(14)).
-
- procedure Complete_Rendezvous;
- -- Called by acceptor to wake up caller
-
- procedure Exceptional_Complete_Rendezvous
- (Ex : Ada.Exceptions.Exception_Id);
- -- Called by acceptor to mark the end of the current rendezvous and
- -- propagate an exception to the caller.
-
- -- For internal use only:
-
- function Task_Do_Or_Queue
- (Self_ID : Task_ID;
- Entry_Call : Entry_Call_Link;
- With_Abort : Boolean) return Boolean;
- -- Call this only with abort deferred and holding lock of Acceptor.
- -- Returns False iff the call cannot be served or queued, as is the
- -- case if the caller is not callable; i.e., a False return value
- -- indicates that Tasking_Error should be raised.
- -- Either initiate the entry call, such that the accepting task is
- -- free to execute the rendezvous, queue the call on the acceptor's
- -- queue, or cancel the call. Conditional calls that cannot be
- -- accepted immediately are cancelled.
-
-end System.Tasking.Rendezvous;
projects / msp430-gcc.git / blobdiff