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└─⟦85b835f43⟧ Bits:30000549 8mm tape, Rational 1000, Xlib rev 6.00
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TextFile

with Xlbt_Arithmetic;  
use Xlbt_Arithmetic;  
with Xlbt_Basic;  
use Xlbt_Basic;  
with Xlbt_Event;  
use Xlbt_Event;  
with Xlbt_Host;  
use Xlbt_Host;  
with Xlbt_String;  
use Xlbt_String;

with Xlbmt_Network_Types;  
use Xlbmt_Network_Types;

package Xlbmp_Internal is
------------------------------------------------------------------------------
-- X Library Machine Dependent Internal Support
--
-- Xlbmp_Internal - Very low-level routines for internal X Library support
-- These should not be called by anyone other than X Library routines.  Not
-- even Extensions should have cause to use these.
------------------------------------------------------------------------------
-- 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.
------------------------------------------------------------------------------
--\f

    function Internal_X_Events_Queued (Display : X_Display;  
                                       Mode    : X_Event_Queuing) return S_Long;
------------------------------------------------------------------------------
-- Read some new events; maybe flush before doing so.  All public event
-- queries are based upon this routine.  Assumes that the display is locked.
------------------------------------------------------------------------------

    procedure Internal_X_Flush_Display (Display : X_Display);
------------------------------------------------------------------------------
--  Display - Specifies the display to flush
--
-- Flush any buffered messages.  They are sent immediately.  If writing to the
-- network would block then we attempt to read incoming events in between write
-- attempts.
------------------------------------------------------------------------------

    procedure Internal_X_Read_Events (Display : X_Display);
------------------------------------------------------------------------------
-- Don't return until we read and queue up at least one new event.  Just like
-- Pending_Events except that we don't return a count and we don't return
-- until we've read at least one.
------------------------------------------------------------------------------

--\f

------------------------------------------------------------------------------
-- Routines for establishing the initial connection or terminating it.
------------------------------------------------------------------------------

    procedure Internal_X_Connect_Display  
                 (Display_Name  :        X_String;  
                  Expanded_Name : out    X_String_Pointer;  
                  Display_Num   : out    U_Char;  
                  Screen_Num    : out    X_Screen_Number;  
                  Family        : out    X_Host_Protocol_Family;  
                  Server_Addr   : out    X_Network_Host_Address;  
                  Connection    : out    X_Network_Connection;  
                  Status        : out    X_Status;  
                  Error         : in out X_Error_String);
------------------------------------------------------------------------------
--  Display_Name    - Specifies what machine/screen/number to connect to
--  Expanded_Name   - Receives the full specification of the connection made
--                      or None_X_String_Pointer on errors
--  Display_Num     - Receives the display number of the connection
--  Screen_Num      - Receives the screen number of the connection
--  Family          - Receives the network family type of the connection
--  Server_Addr     - Receives information about the address of the server
--  Connection      - Receives the actual connection data values
--  Status          - Receives an indication of the success/failure
--  Error           - Receives a string indicating any failure
--
-- Attempts to connect to server, given display name. Returns network connection
-- ID.  Status = Failed if connection fails.  The expanded display name
-- of the form hostname:number.screen ("::" if DECnet) is returned in a result
-- parameter. The screen number to use is also returned.
-- The Display_Name may be of the following format:
--
--     [hostname] : [:] displaynumber [.screennumber]
--
-- The second colon indicates a DECnet style name.  No hostname is interpreted
-- as the most efficient local connection to a server on the same machine.
-- This is usually:
--
--     -  shared memory
--     -  local stream
--     -  UNIX domain socket
--     -  TCP to local host
------------------------------------------------------------------------------

    procedure Internal_X_Disconnect_Display  
                 (Connection : in out X_Network_Connection);
------------------------------------------------------------------------------
-- Called to break the network connection to the server.
------------------------------------------------------------------------------

end Xlbmp_Internal;