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Length: 11264 (0x2c00)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Xlbp_Sync, seg_004f8b
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Xlbt_Arithmetic;
use Xlbt_Arithmetic;
with Xlbt_Basic;
use Xlbt_Basic;
with Xlbt_Display2;
use Xlbt_Display2;
with Xlbt_Proc_Var;
use Xlbt_Proc_Var;
with Xlbt_Reply;
use Xlbt_Reply;
with Xlbt_Request;
use Xlbt_Request;
with Xlbp_Proc_Var;
use Xlbp_Proc_Var;
with Xlbit_Library4;
use Xlbit_Library4;
with Xlbip_Get_Reply;
use Xlbip_Get_Reply;
with Xlbip_Internal;
use Xlbip_Internal;
with Xlbip_Put_Request;
use Xlbip_Put_Request;
with Xlbmt_Network_Types;
use Xlbmt_Network_Types;
with Xlbmt_Parameters;
use Xlbmt_Parameters;
package body Xlbp_Sync is
------------------------------------------------------------------------------
-- X Library Synchronize
--
-- Xlbp_Sync - Error detection server synchronization.
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1985 - 1989 by the Massachusetts Institute of Technology
--
-- All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of MIT or Rational not be
-- used in advertising or publicity pertaining to distribution of the software
-- without specific, written prior permission.
--
-- MIT and Rational disclaim all warranties with regard to this software,
-- including all implied warranties of merchantability and fitness, in no
-- event shall MIT or Rational be liable for any special, indirect or
-- consequential damages or any damages whatsoever resulting from loss of use,
-- data or profits, whether in an action of contract, negligence or other
-- tortious action, arising out of or in connection with the use or performance
-- of this software.
------------------------------------------------------------------------------
-- ****************************************************************************
-- * Date - /Name/ Comment
-- *
-- * 7-NOV-90 - /GEB/ Implement the new multitasking protection scheme for
-- * - library state.
-- ****************************************************************************
--\x0c
procedure X_Sync (Display : X_Display;
Discard : Boolean) is
------------------------------------------------------------------------------
-- Like X_Flush but in addition it waits until all events and errors resulting
-- from the flushed requests (or requests prior to the flushed events) have
-- returned from the server. Discard tells us whether to discard all events
-- or not. Error events are always passed to the X_Error routine.
------------------------------------------------------------------------------
Reprec : X_Reply_Contents;
Void : X_Status;
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Put_X_Get_Input_Focus_Request
(Display, (Kind => Get_Input_Focus,
Length => X_Get_Input_Focus_Request'Size / 32,
Pad => 0));
----Get the reply (and ignore it).
Get_Reply (Display => Display,
Code => Get_Input_Focus,
Reply => Reprec,
Extra => 0,
Discard => True,
Status => Void);
----Discard all pending events (if requested).
if Discard and then Display.Head /= null then
declare
Ev : X_Queued_Event;
begin
while Display.Head /= None_X_Queued_Event loop
Ev := Display.Head;
Display.Head := Ev.Next;
if Display.Q_Free_Len >= X_Max_Q_Free then
Free_X_Queued_Event (Ev);
else
Ev.Next := Display.Q_Free;
Display.Q_Free := Ev;
Display.Q_Free_Len := Display.Q_Free_Len + 1;
end if;
end loop;
end;
Display.Head := null;
Display.Tail := null;
Display.Q_Len := 0;
end if;
----Catch unexpected exceptions and unlock the display before passing them on.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock the display and return.
Unlock_Display (Display);
end X_Sync;
--\x0c
procedure Private_X_Sync_Function (Display : X_Display) is
------------------------------------------------------------------------------
-- Default X_Synchandler_Pv value for all displays.
------------------------------------------------------------------------------
begin
X_Sync (Display, Discard => False);
end Private_X_Sync_Function;
function Default_X_Sync_Function_Type is
new Proc_Var_X_Synchandler.Value (Private_X_Sync_Function);
--\x0c
function X_Synchronize (Display : X_Display;
Onoff : Boolean)
return Proc_Var_X_Synchandler.Pv is
------------------------------------------------------------------------------
-- Turns the usage of the X_Set_After_Function on and off.
------------------------------------------------------------------------------
Temp : Proc_Var_X_Synchandler.Pv;
begin
----Lock the display against meddling.
Lock_Display (Display);
----Make the swap.
Temp := Proc_Var_X_Synchandler.To_Pv (Display.Synchandler);
if Onoff then
Display.Synchandler := X_Lib_Default_X_Sync_Function;
else
Display.Synchandler := None_X_Procedure_Variable;
-- None_X_Synchandler_Type
end if;
----Unlock the display and return our old value.
Unlock_Display (Display);
return Temp;
end X_Synchronize;
--\x0c
function X_Set_After_Function (Display : X_Display;
Funct : Proc_Var_X_Synchandler.Pv)
return Proc_Var_X_Synchandler.Pv is
------------------------------------------------------------------------------
-- Set the function that will be called after each and every server request
-- is queued. The previous "after" function is returned.
------------------------------------------------------------------------------
use Proc_Var_X_Synchandler;
Temp : Proc_Var_X_Synchandler.Pv;
begin
Lock_Display (Display);
Temp := Proc_Var_X_Synchandler.To_Pv (Display.Synchandler);
Display.Synchandler := Proc_Var_X_Synchandler.From_Pv (Funct);
Unlock_Display (Display);
return Temp;
end X_Set_After_Function;
--\x0c
begin
X_Lib_Default_X_Sync_Function :=
Proc_Var_X_Synchandler.From_Pv (Default_X_Sync_Function_Type);
end Xlbp_Sync;
nblk1=a
nid=0
hdr6=14
[0x00] rec0=28 rec1=00 rec2=01 rec3=03c
[0x01] rec0=11 rec1=00 rec2=02 rec3=044
[0x02] rec0=12 rec1=00 rec2=03 rec3=072
[0x03] rec0=20 rec1=00 rec2=04 rec3=052
[0x04] rec0=00 rec1=00 rec2=0a rec3=004
[0x05] rec0=19 rec1=00 rec2=05 rec3=044
[0x06] rec0=02 rec1=00 rec2=09 rec3=02e
[0x07] rec0=1a rec1=00 rec2=06 rec3=018
[0x08] rec0=1c rec1=00 rec2=07 rec3=044
[0x09] rec0=14 rec1=00 rec2=08 rec3=000
tail 0x217006f9081978368f129 0x42a00088462063203