0ae9f22fde
2006-02-13 Robert Dewar <dewar@adacore.com> * s-gloloc-mingw.adb, a-cgaaso.ads, a-stzmap.adb, a-stzmap.adb, a-stzmap.ads, a-ztcoio.adb, a-ztedit.adb, a-ztedit.ads, a-ztenau.adb, a-ztenau.ads, a-colien.adb, a-colien.ads, a-colire.adb, a-colire.ads, a-comlin.adb, a-decima.adb, a-decima.ads, a-direio.adb, a-direio.adb, a-direio.adb, a-direio.ads, a-ngcoty.adb, a-ngcoty.ads, a-nuflra.adb, a-nuflra.ads, a-sequio.adb, a-sequio.ads, a-sequio.ads, a-storio.ads, a-stream.ads, a-ststio.adb, a-ststio.adb, a-ststio.ads, a-ststio.ads, a-stwima.adb, a-stwima.adb, a-stwima.ads, a-stwise.adb, a-teioed.adb, a-teioed.ads, a-ticoau.adb, a-ticoau.ads, a-ticoio.adb, a-tasatt.ads, a-tideau.adb, a-tideau.ads, a-tideio.adb, a-tideio.ads, a-tienau.adb, a-tienau.ads, a-tienio.adb, a-tienio.ads, a-tifiio.ads, a-tiflau.adb, a-tiflau.ads, a-tiflio.adb, a-tiflio.adb, a-tiflio.ads, a-tigeau.ads, a-tiinau.adb, a-tiinau.ads, a-tiinio.adb, a-tiinio.ads, a-timoio.adb, a-timoio.ads, a-titest.adb, a-titest.ads, a-wtcoio.adb, a-wtdeau.adb, a-wtdeau.ads, a-wtdeio.adb, a-wtdeio.ads, a-wtedit.adb, a-wtedit.adb, a-wtedit.ads, a-wtenau.adb, a-wtenau.ads, a-wtenau.ads, a-wtenio.adb, a-wtenio.ads, a-wtfiio.adb, a-wtfiio.ads, a-wtflau.adb, a-wtflau.ads, a-wtflio.adb, a-wtflio.adb, a-wtflio.ads, a-wtgeau.ads, a-wtinau.adb, a-wtinau.ads, a-wtinio.adb, a-wtinio.ads, a-wtmoau.adb, a-wtmoau.ads, a-wtmoio.adb, a-wtmoio.ads, xref_lib.adb, xref_lib.ads, xr_tabls.adb, g-boubuf.adb, g-boubuf.ads, g-cgideb.adb, g-io.adb, gnatdll.adb, g-pehage.adb, i-c.ads, g-spitbo.adb, g-spitbo.ads, mdll.adb, mlib-fil.adb, mlib-utl.adb, mlib-utl.ads, prj-env.adb, prj-tree.adb, prj-tree.ads, prj-util.adb, s-arit64.adb, s-asthan.ads, s-auxdec.adb, s-auxdec.ads, s-chepoo.ads, s-direio.adb, s-direio.ads, s-errrep.adb, s-errrep.ads, s-fileio.adb, s-fileio.ads, s-finroo.adb, s-finroo.ads, s-gloloc.adb, s-gloloc.ads, s-io.adb, s-io.ads, s-rpc.adb, s-rpc.ads, s-shasto.ads, s-sequio.adb, s-stopoo.ads, s-stratt.adb, s-stratt.ads, s-taasde.adb, s-taasde.ads, s-tadert.adb, s-sequio.ads, s-taskin.adb, s-tasque.adb, s-tasque.ads, s-wchjis.ads, makegpr.adb, a-coinve.adb, a-cidlli.adb, eval_fat.adb, exp_dist.ads, exp_smem.adb, fmap.adb, g-dyntab.ads, g-expect.adb, lib-xref.ads, osint.adb, par-load.adb, restrict.adb, sinput-c.ads, a-cdlili.adb, system-vms.ads, system-vms-zcx.ads, system-vms_64.ads: Minor reformatting. From-SVN: r111023
102 lines
5.1 KiB
Ada
102 lines
5.1 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- S Y S T E M . T A S K I N G . Q U E U I N G --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
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-- --
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-- GNARL is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNARL; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNARL was developed by the GNARL team at Florida State University. --
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-- Extensive contributions were provided by Ada Core Technologies, Inc. --
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-- --
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------------------------------------------------------------------------------
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with System.Tasking.Protected_Objects.Entries;
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package System.Tasking.Queuing is
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package POE renames System.Tasking.Protected_Objects.Entries;
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procedure Broadcast_Program_Error
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(Self_ID : Task_Id;
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Object : POE.Protection_Entries_Access;
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Pending_Call : Entry_Call_Link;
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RTS_Locked : Boolean := False);
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-- Raise Program_Error in all tasks calling the protected entries of Object
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-- The exception will not be raised immediately for the calling task; it
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-- will be deferred until it calls Check_Exception.
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-- RTS_Locked indicates whether the global RTS lock is taken (only
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-- relevant if Single_Lock is True).
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procedure Enqueue (E : in out Entry_Queue; Call : Entry_Call_Link);
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-- Enqueue Call at the end of entry_queue E
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procedure Dequeue (E : in out Entry_Queue; Call : Entry_Call_Link);
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-- Dequeue Call from entry_queue E
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function Head (E : Entry_Queue) return Entry_Call_Link;
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pragma Inline (Head);
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-- Return the head of entry_queue E
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procedure Dequeue_Head
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(E : in out Entry_Queue;
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Call : out Entry_Call_Link);
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-- Remove and return the head of entry_queue E
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function Onqueue (Call : Entry_Call_Link) return Boolean;
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pragma Inline (Onqueue);
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-- Return True if Call is on any entry_queue at all
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function Count_Waiting (E : Entry_Queue) return Natural;
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-- Return number of calls on the waiting queue of E
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procedure Select_Task_Entry_Call
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(Acceptor : Task_Id;
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Open_Accepts : Accept_List_Access;
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Call : out Entry_Call_Link;
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Selection : out Select_Index;
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Open_Alternative : out Boolean);
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-- Select an entry for rendezvous. On exit:
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-- Call will contain a pointer to the entry call record selected;
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-- Selection will contain the index of the alternative selected
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-- Open_Alternative will be True if there were any open alternatives
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procedure Select_Protected_Entry_Call
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(Self_ID : Task_Id;
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Object : POE.Protection_Entries_Access;
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Call : out Entry_Call_Link);
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-- Select an entry of a protected object
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procedure Enqueue_Call (Entry_Call : Entry_Call_Link);
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procedure Dequeue_Call (Entry_Call : Entry_Call_Link);
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-- Enqueue (dequeue) the call to (from) whatever server they are
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-- calling, whether a task or a protected object.
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procedure Requeue_Call_With_New_Prio
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(Entry_Call : Entry_Call_Link; Prio : System.Any_Priority);
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-- Change Priority of the call and re insert to the queue when priority
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-- queueing is in effect. When FIFO is inforced, this routine
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-- should not have any effect.
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end System.Tasking.Queuing;
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