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Length: 51200 (0xc800)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, generic, package Dtia_Client, pragma Module_Name 4 3997, pragma Subsystem Tools_Integration, seg_00f29f
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─⟦5a81ac88f⟧ »Space Info Vol 1«
└─⟦this⟧
with Action;
with Device_Independent_Io;
with Directory;
with Gateway_Object;
with Profile;
with Simple_Status;
with System;
with System_Utilities;
package Dtia_Client is
-- This is the package that provides the interface from DTIA
-- integration products and the DTIA mechanisms themselves.
-- Integration products instantiate the generic. Environment
-- operations will then call the generic formals when various
-- common commands are executed from the environment.
type Error_Counts is
record
Warnings : Natural := 0;
Errors : Natural := 0;
Fatal : Boolean := False;
end record;
--
-- Error_Counts is used to accumulate errors made on successive calls
-- to certain operations. It provides a convenient way to store
-- error counts for later examination. You can set Fatal to indicate
-- that the operation should stop.
-- Types and constants for server termination operation. See
-- Dtia_Client_Operations.Terminate_Server for details.
--
subtype Termination_Condition is Natural range 0 .. 63;
--
Unknown_Condition : constant Termination_Condition := 0;
Session_Ends : constant Termination_Condition := 1;
Gateway_Class_Deactivated : constant Termination_Condition := 2;
function Image (C : Termination_Condition) return String;
type Image_Id is private;
Nil_Image : constant Image_Id;
--
-- Identifies an image. Passed to each operation to identify the
-- image from which the command is being issued. Can be used only for
-- the lifetime of that call.
type Cursor is private;
type Selection is private;
Nil_Cursor : constant Cursor;
Nil_Selection : constant Selection;
-- Image_Identity is used to uniquely identify images so that the editor
-- can find out if it already has a particular image. The general use
-- is to set I1 to the Directory.Unique of the object if there is one
-- and to set I2 to zero or some number if there are variants of the
-- image that are to be treated as separate images.
-- If the image is not based on a directory object, then some number
-- is chosen for I1 and I2 such that the same numbers are chosen each
-- time the specific variant of the display is specified.
type Image_Identity is
record
I1, I2 : Long_Integer;
end record;
-- Editor image access
--
-- Lines in the image are numbered starting at 1
--
-- A Cursor identifies a point in the image.
-- A Selection is a region of the image starting and ending at some points.
function Line (C : Cursor) return Integer;
-- Returns line corresponding to cursor; negative if in header,
-- positive if in rest of image, 0 if nil.
-- The line's text is obtained via Header_Contents (-result)
-- or Line_Contents (result) as appropriate.
function Column (C : Cursor) return Natural;
function Line_Contents (Id : Image_Id; C : Cursor) return String;
-- function Line_Contents (Id : Image_Id; Line : Positive) return String;
-- Return the specified line of the image. Return null string if
-- past the end of the image.
-- function Header_Contents (Id : Image_Id; Line : Positive) return String;
-- Return the specified line of the header. Return null string if
-- past the end of the header.
function Selection_Start (S : Selection) return Cursor;
function Selection_End (S : Selection) return Cursor;
function Selection_Contents (Id : Image_Id; S : Selection) return String;
function Selection_Is_Line (S : Selection) return Boolean;
type Booleans is array (Positive range <>) of Boolean;
procedure Insert_Lines
(Image : Image_Id; After_Line : in out Natural; Text : String);
--
-- Insert text into image after After_Line. Subsequent lines
-- are "pushed down".
-- Use After_Line = 0 to insert text at the beginning of the image.
-- Use After_Line = Natural'Last to append text to end of image.
--
-- On return, After_Line is the line number of the last inserted line.
-- A subsequent call using the returned After_Line will insert
-- text just after the text inserted by
-- this call.
procedure Insert_Enhanced_Lines (Image : Image_Id;
After_Line : in out Natural;
Text : String;
Underlines : Booleans;
Prompts : Booleans);
-- Same as Insert_Lines except that the characters inserted can be
-- underlined or emprompted. Underlines and Prompts are in 1-1
-- correspondence with Text and each element indicates whether
-- to underline or enprompt the corresponding character of Text.
--
-- Within Text, Ascii.lf denotes a line break. The Ascii.lf does not
-- appear in the image. Other control characters appear as inverse
-- video. Underlining and emprompting of Ascii.Lf characters
-- is ignored.
--
-- One line will be inserted, plus 1 line for every Ascii.lf in Text.
procedure Replace_Header (Image : Image_Id; Header : String);
--
-- Place the string as a non-editable header at the top of the image;
-- replaces any previous header line(s). Note that line 0 from the
-- Insert_ and Replace_ operations always follow this header, or,
-- equivalently, lines in the header are not numbered.
--
-- If Header is null, no header lines will be added, having the effect
-- of deleting any existing header.
-- Otherwise, 1 header line will be added, plus 1 line for every Ascii.lf
-- in Header.
procedure Append (Image : Image_Id; Text : String);
-- Append the string as editable text to the bottom of the image; does
-- not replace any text.
procedure Delete_Lines (Image : Image_Id;
Starting_Line : Positive;
Number_Of_Lines : Natural);
-- Delete the specified lines.
procedure Replace_Lines (Image : Image_Id;
Starting_Line : Positive;
Number_Of_Lines : Natural;
New_Text : String);
-- Replaces number_of_lines starting with starting_line with New_Text.
-- First deletes Number_Of_Lines starting with Starting_Line; then,
-- inserts the new text at Starting_Line.
procedure Replace_With_Enhanced_Lines (Image : Image_Id;
Starting_Line : Positive;
Number_Of_Lines : Natural;
New_Text : String;
Underlines : Booleans;
Prompts : Booleans);
-- Deletes Number_Of_Lines starting with Starting_Line;
-- inserts New_Text in their place.
-- One line will be inserted, plus 1 line for every Ascii.lf in New_Text.
function Is_Read_Only (Image : Image_Id) return Boolean;
-- return true if image is read-only
procedure Make_Read_Only (Image : Image_Id);
-- set image's editor state to read-only
subtype Gateway_Handle is Gateway_Object.Handle;
function Objects_Name (Image : Image_Id) return String;
-- Return the name of the underlying object being displayed,
-- if any. Returns null string if none.
function Object_Id (Image : Image_Id) return Directory.Object;
-- Similar to Object_Name but returns Directory.Object of
-- the gateway object.
-- Default 'Undefined' instantiation parameters for the
-- operations generic.
procedure Undefined (Handle : Gateway_Handle;
Visible : Boolean;
Read_Only : Boolean;
No_Image : out Boolean;
Show_Property_Image : out Boolean;
Id : out Image_Identity);
procedure Undefined (Handle : Gateway_Handle;
Visible : Boolean;
In_Place : Boolean;
First_Time : Boolean;
Read_Only : in out Boolean;
Image : Image_Id;
No_Image : out Boolean;
Underlying_Object : out Directory.Object);
procedure Undefined (Handle : Gateway_Handle;
Image : Image_Id);
procedure Undefined (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor);
procedure Undefined (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Predicate : Boolean);
procedure Undefined_In_Place (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Predicate : Boolean;
In_Place : Boolean);
procedure Undefined (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Visible : Boolean;
Allow_Edit : out Boolean);
procedure Undefined (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Count : Integer);
procedure Undefined_Deletion
(Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Predicate : out Boolean);
procedure Undefined (Handle : Gateway_Handle;
Subobject : Directory.Object;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts);
procedure Undefined_Check_Out (Handle : Gateway_Handle;
Subobject : Directory.Object;
Allow_Implicit_Accept_Changes : Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts);
procedure Undefined (Handle : Gateway_Handle;
Subobject : Directory.Object;
Release : Boolean;
Controlled : Boolean;
Joined : Boolean;
Source_View : Directory.Object;
Destination_View : Directory.Object;
First_Call : Boolean;
Do_Not_Copy : out Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts);
procedure Undefined (Handle : Gateway_Handle;
Subobject : Directory.Object;
Source_Object : Directory.Object;
Release : Boolean;
Controlled : Boolean;
Joined : Boolean;
Source_View : Directory.Object;
Destination_View : Directory.Object;
First_Call : Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts);
procedure Undefined (Handle : Gateway_Handle;
Subobject : Directory.Object;
Save_Source : Boolean;
Allow_Controlled : out Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts);
-- Default actuals for I/O related generic formals. Each
-- of these operations raises an appropriate exception if
-- called as a result of specifying 'External' for I/O
-- operations in the gateway's operation map.
procedure Undefined (File : in out Device_Independent_Io.File_Type;
Mode : Device_Independent_Io.File_Mode;
Handle : Gateway_Handle;
Form : String;
Action_Id : Action.Id);
procedure Undefined (File : Device_Independent_Io.File_Type;
Item : out System.Byte_String;
Count : out Natural);
procedure Undefined (File : Device_Independent_Io.File_Type;
Item : out String;
Count : out Natural);
procedure Undefined (File : Device_Independent_Io.File_Type;
Item : System.Byte_String);
procedure Undefined (File : Device_Independent_Io.File_Type;
Item : String);
function Undefined (File : Device_Independent_Io.File_Type) return Boolean;
procedure Undefined (File : in out Device_Independent_Io.File_Type);
procedure Undefined (File : in out Device_Independent_Io.File_Type;
Mode : Device_Independent_Io.File_Mode);
generic
Class_Name : String; -- Name of the class instantiation is
-- handling.
Session_Server : Boolean; -- True if the instantiation is to
-- handle only requests from the specific session on which this
-- package is elaborated.
-- When these operations are invoked, the Handle parameter
-- will refer to the gateway object under which the editor
-- is running an image.
--
-- Note that these operation are invoked by a task that has
-- the invoking user's login identity. Thus, for access control
-- purposes, they run with the same access as the user.
--
-- For editor operations, the editor will release
-- its read lock on the object underlying the image (if any)
-- during the execution of the generic formals below. The same
-- is not true of the gateway handle. If the gateway object is
-- to be updated, it must first be closed, and then reopened
-- for update. If the underlying object is updated, it must be
-- closed prior to return of the generic formal procedure after
-- which the editor will automatically redraw the image.
with procedure Image_Name (Handle : Gateway_Handle;
Visible : Boolean;
Read_Only : Boolean;
No_Image : out Boolean;
Show_Property_Image : out Boolean;
Id : out Image_Identity) is Undefined;
--
-- Called when an image is to be created for the specified Gateway.
-- If no image is to be built, set No_Image. If No_Image is
-- true, Show_Property_Image can be set true to cause the editor
-- to bring up the gateway property image directly. Build_Image
-- will not be called in this case. Otherwise, Build_Image will be
-- called to create the image or run workstation tools.
--
-- Read_Only indicates that the image is ro be read only when made.
-- It is false when the image is being constructed as a result of
-- Common.Edit being run.
with procedure Build_Image (Handle : Gateway_Handle;
Visible : Boolean;
In_Place : Boolean;
First_Time : Boolean;
Read_Only : in out Boolean;
Image : Image_Id;
No_Image : out Boolean;
Underlying_Object : out Directory.Object) is
Undefined;
--
-- Called when an image is to be created for the object designated by
-- Handle (First_Time = true) or re-built as part of the Revert
-- operation (First_Time = false).
-- Visible is from the definition or edit command.
-- In_Place indicates that the current window should be used and
-- this applies in the case when some other environment operation
-- ends up being called. Read_Only is true if the image is a result
-- of Definition or Gateway.Edit, and not Common.Edit.
-- No_Image should be set the same as Image_Name. If there is
-- an underlying object for the image, set Underlying_Object
-- to this value. If not, set it to Directory.Nil.
-- If Read_Only is false on entry, Build_Image checks that the class
-- allows editing, and sets Read_Only to true if it does not.
with procedure Post_Commit (Handle : Gateway_Handle;
Image : Image_Id) is Undefined;
--
-- Called after a commit operation is run. If the object was
-- actually open for update, the update is committed and the
-- object is available at the time this procedure is called.
-- If the image was constructed by the instantiation of Build_Image
-- then this procedure is responsible for saving any changes that
-- need to be saved.
with procedure Semanticize (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor) is Undefined;
--
-- Called when Common.Semanticize is run on the image.
-- The image can be modified by calling operations in the
-- Image_Update package below.
with procedure Complete (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Menu : Boolean) is Undefined;
--
-- Called when Common.Complete is called, Menu is the parameter
-- passed to Common.Complete.
with procedure Edit (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Visible : Boolean;
Allow_Edit : out Boolean) is Undefined;
--
-- Called when Edit is run from the image. Does not apply when
-- edit is run from some other way (such as LOE image).
-- Visible is as passed to the command.
--
-- On return, Allow_Edit is used to determine if the image should
-- be allowed to be edited. Note that this is ignored if the
-- class forbids editing.
with procedure Definition (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Visible : Boolean;
In_Place : Boolean) is Undefined_In_Place;
--
-- If a new window is to be brought up, call the normal
-- definition operation to do it. In_Place indicates that,
-- if a new R1000 window is to be brought up, it should
-- overwrite this one.
with procedure Enclosing_Object (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Library : Boolean;
In_Place : Boolean) is
Undefined_In_Place;
-- Bring up the enclosing object as appropriate. If a new
-- R1000 window is to be brought up, In_Place indicates that
-- it should replace the current window.
with procedure Elide (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Repeat : Positive) is Undefined;
with procedure Expand (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Repeat : Positive) is Undefined;
with procedure Undo (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Repeat : Positive) is Undefined;
with procedure Redo (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Repeat : Positive) is Undefined;
with procedure Promote (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor) is Undefined;
with procedure Demote (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor) is Undefined;
with procedure Format (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor) is Undefined;
with procedure Revert (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor) is Undefined;
-- Called when the Common.Revert is executed. Following
-- execution of this procedure (the Revert actual), the image will
-- be regenerated by taking the Build_Image action as defined
-- in the operations map for the gateway class. If this action
-- is external, then the Build_Image actual will be called.
--
-- This procedure should delete the current image contents if the
-- subsequent actions cannot deal with there being previous
-- image contents. Deletion is not required for images automatically
-- regenerated from an object (i.e., not via the Build_Image
-- procedure).
--
-- In addition, Revert should take whatever action is required to
-- get the data "up to date" as defined by the integration
-- product semantics for revert.
with procedure Sort_Image (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Format : Integer) is Undefined;
with procedure Delete (Handle : Gateway_Handle;
Image : Image_Id;
S : Selection;
C : Cursor;
Remove_Image : out Boolean) is
Undefined_Deletion;
with procedure Pre_Check_In
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined;
--
-- Called during CMVC.Check_In prior to the object actually
-- being checked_in. This operation may update the
-- R1000 or workstation object as desired.
--
-- Set Errors.Fatal to true to cause the check in to terminate.
-- Messages should be written to Log_File using Log.Put_Line.
-- This is the log file being generated by CMVC.
-- Action is an action_id that will be abandoned if the overall
-- Check_In operation fails and committed if it succeeds.
with procedure Post_Check_In
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined;
--
-- Called during CMVC.Check_In after the object is
-- checked_in. This operation may not update the
-- R1000 object, but may update the workstation object as desired.
-- Note, however, that the action has not been committed at this
-- point so that there is no guarantee the the object will
-- in fact end up checked-in.
--
-- Set Errors.Fatal to true to cause the check in to terminate.
-- Messages should be written to Log_File using Log.Put_Line.
-- This is the log file being generated by CMVC.
-- Action is an action_id that will be abandoned if the overall
-- Check_In operation fails and committed if it succeeds.
with procedure Pre_Check_Out
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Allow_Implicit_Accept_Changes : Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined_Check_Out;
--
-- Called during Cmvc.Check_Out prior to the object actually
-- being checked out. Allows placement of messages
-- into log prior to check_out and forbidding of check_out. Set
-- Errors.Fatal to true to cause the check_out to not happen.
-- Messages should be written to the log file using Log.Put_Line
-- with response profile Response. This is the log file being
-- generated by CMVC.
-- Allow_Implicit_Accept_Changes is the parameter as passed to
-- Cmvc.Check_Out.
-- Action is an action_id that will be abandoned if the overall
-- Check_Out operation fails and committed if it succeeds.
with procedure Post_Check_Out
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Allow_Implicit_Accept_Changes : Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined_Check_Out;
--
-- Called after cmvc.check_out. Allows placement of messages
-- into log after check out. Set Errors.Fatal to true to cause
-- the check out to be abandoned. This should be done only in
-- the case of serious, thought-to-be unrecoverable problems.
-- The gateway object can be modified at this time.
--
-- Messages should be written to the log file using Log.Put_Line
-- with response profile Response. This is the log file being
-- generated by CMVC.
-- Allow_Implicit_Accept_Changes is the parameter as passed to
-- Cmvc.Check_Out.
-- Action is an action_id that will be abandoned if the overall
-- Check_Out operation fails and committed if it succeeds.
with procedure Pre_Cmvc_Copy
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Release : Boolean;
Controlled : Boolean;
Joined : Boolean;
Source_View : Directory.Object;
Destination_View : Directory.Object;
First_Call : Boolean;
Do_Not_Copy : out Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined;
--
-- Called prior to Cmvc.Copy of any form that is copying this
-- gateway object.
--
-- Warning or error messages should be written to Log_File
-- using Log.Put_Line. This is the log file being generated
-- by CMVC.
--
-- Parameters and their meaning:
-- Release => the operation is a release operation in which
-- the object will end up frozen.
-- Controlled => the object being copied is Cmvc controlled.
-- Joined => the object being copied will be joined to
-- source view. (This is always the same for
-- all objects copied in a single view copy.)
-- Source_View = View being copied.
-- Destination_View = view being created with copies from
-- Source_View.
-- First_Call => This is the first object being copied by
-- this Cmvc copy operation. False other times. --
-- If the object should not be copied, then set Do_Not_Copy to
-- true, else to false.
--
-- Action is an action_id that will be abandoned if the overall
-- Copy operation fails and committed if it succeeds.
with procedure Post_Cmvc_Copy
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Source_Object : Directory.Object;
Release : Boolean;
Controlled : Boolean;
Joined : Boolean;
Source_View : Directory.Object;
Destination_View : Directory.Object;
First_Call : Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined;
--
-- Called after Cmvc.Copy has copied a gateway object. Handle
-- is the gateway object in the newly created view.
-- The operation may be a release and the object will be frozen
-- but at this point, it is not yet frozen. This is an opportunity
-- to modify the object before the copy/release is completed.
-- If objects or information needs to be added to the
-- copy, it can be done at this time. If it needs to be
-- removed from the source, this can also be done at this time.
--
-- Warning or error messages should be written using Log.Put_Line
-- with response profile Response. This is the log file being
-- generated by CMVC. Set Errors.Fatal to true to prevent
-- copy from completing.
--
-- Parameters and their meaning:
-- Release => the operation is a release operation in which
-- the object will end up frozen.
-- Controlled => the object being copied is Cmvc controlled.
-- Joined => the object being copied will be joined to
-- source view. (This is always the same for
-- all objects copied in a single view copy.)
-- Source_View = View being copied.
-- Destination_View = view being created with copies from
-- Source_View.
-- First_Call => This is the first object being copied by
-- this Cmvc copy operation. False other times.
--
-- Action is an action_id that will be abandoned if the overall
-- Copy operation fails and committed if it succeeds.
with procedure Pre_Make_Controlled
(Handle : Gateway_Handle;
Subobject : Directory.Object;
Save_Source : Boolean;
Allow_Controlled : out Boolean;
Response : Profile.Response_Profile;
Action_Id : Action.Id;
Errors : in out Dtia_Client.Error_Counts) is
Undefined;
--
-- Called when, but before, the object designated by Handle is
-- to be made controlled. Set Allow_Controlled if it is ok to
-- proceed with this object. If not, emit error messages to
-- Log_File, and indicate an error or warning in Errors (warning
-- would be best), and set Allow_Controlled to false.
-- Save_Source is the value of the parameter to the Cmvc
-- command and indicates if the source is to be saved in the
-- CMVC database.
--------------------------
-- Input/Output Formals --
--------------------------
--
-- Client applications should provide non-default actuals -- for the following formals when non-standard I/O control
-- on gateway objects is required.
--
-- These operations are called whenever I/O operations
-- are applied to a gateway object whose Dispatch_Map or
-- Io.Form_Map property specifies the value 'External'.
--
-- Each of these formals operate on the File_Type object
-- declared in Device_Independent_Io and should behave
-- in a way consistent with the corresponding operations
-- in that package. This includes the propagation of
-- exceptions, which must be limited to those exported
-- from Device_Independent_Io.
--
-- N.B. A Device_Independent_Io.Device_Specific control block
-- is associated with the File objects passed to these
-- formals. Clients must restrict their use of control
-- blocks to Device_Independent_Io.Client_Specific, if
-- they need to associate client specific attributes with
-- the File object.
with procedure Io_Create (File : in out Device_Independent_Io.File_Type;
Mode : Device_Independent_Io.File_Mode;
Handle : Gateway_Handle;
Form : String;
Action_Id : Action.Id) is
Undefined;
--
-- Called when a Create operation is applied to a gateway
-- object as specified above. The client must initialize
-- the File object such that Is_Open (File) = True and
-- Mode (File) = Mode. When this is not possible, an
-- exception from Device_Independent_Io suitable for
-- Create should be raised.
with procedure Io_Open (File : in out Device_Independent_Io.File_Type;
Mode : Device_Independent_Io.File_Mode;
Handle : Gateway_Handle;
Form : String;
Action_Id : Action.Id) is
Undefined;
--
-- Called when an Open operation is applied to a gateway
-- object as specified above. The client must initialize
-- the File object such that Is_Open (File) = True and
-- Mode (File) = Mode. When this is not possible, an
-- exception from Device_Independent_Io suitable for Open
-- should be raised.
with procedure Io_Read_Bytes (File : Device_Independent_Io.File_Type;
Item : out System.Byte_String;
Count : out Natural) is
Undefined;
--
-- Called when an I/O request to read bytes from File is made.
-- Clients may supply Device_Independent_Io.Read for this formal
-- if File was initialized to a directly accessible file during
-- Io_Create or Io_Open above.
with procedure Io_Read_String (File : Device_Independent_Io.File_Type;
Item : out String;
Count : out Natural) is
Undefined;
--
-- Called when an I/O request to read characters from File is
-- made. Clients may supply Device_Independent_Io.Read for this
-- formal if File was initialized to a directly accessible file
-- during Io_Create or Io_Open above.
with procedure Io_Write_Bytes (File : Device_Independent_Io.File_Type;
Item : System.Byte_String) is
Undefined;
--
-- Called when an I/O request to write bytes to File is made.
-- Clients may supply Device_Independent_Io.Write for this
-- formal if File was initialized to a directly accessible file
-- during Io_Create or Io_Open above.
with procedure Io_Write_String (File : Device_Independent_Io.File_Type;
Item : String) is
Undefined;
--
-- Called when an I/O request to write characters to File is
-- made. Clients may supply Device_Independent_Io.Write for
-- this formal if File was initialized to a directly accessible
-- file during Io_Create or Io_Open above.
with function Io_End_Of_File (File : Device_Independent_Io.File_Type)
return Boolean is Undefined;
--
-- Called when an end of file query is made on File. Clients
-- may supply Device_Independent_Io.End_Of_File for this formal
-- if File was initialized to a directly accessible file during
-- Io_Create or Io_Open above.
with procedure Io_Delete
(File : in out Device_Independent_Io.File_Type) is
Undefined;
--
-- Called when an I/O request to delete File is made. Clients
-- may supply Device_Independent_Io.Delete for this formal if
-- File was initialized to a directly accessible file during
-- Io_Create or Io_Open above and no additional reclamation of
-- resources is required.
with procedure Io_Reset (File : in out Device_Independent_Io.File_Type;
Mode : Device_Independent_Io.File_Mode) is
Undefined;
--
-- Called when an I/O request to reset File is made. Clients
-- may supply Device_Independent_Io.Reset for this formal if
-- File was initialized to a directly accessible file during
-- Io_Create or Io_Open above and no additional reclamation of
-- resources is required.
with procedure Io_Close
(File : in out Device_Independent_Io.File_Type) is
Undefined;
--
-- Called when an I/O request to close File is made. Clients
-- may supply Device_Independent_Io.Close for this formal if
-- File was initialized to a directly accessible file during
-- Io_Create or Io_Open above and no additional reclamation of
-- resources is required.
------------------------
-- Server Termination --
------------------------
with procedure Terminate_Server (Reason : Termination_Condition);
--
-- Called when the server should terminate. Reason indicates
-- why. In general, the server should close down its connections
-- and terminate when this call is made. The work that
-- can be done by this call is limited to 5 minutes of elapsed
-- time.
--
-- The reasons are:
-- Session_Ends: There are no more jobs started from the session
-- that started the server and hence, no more calles
-- can occur.
-- Gateway_Class_Deactivated: The gateway class is being
-- deactivated and the server should terminate
-- (whether there are outstanding requests or not).
package Dtia_Client_Operations is
-- Here are things that the generic formal procedures can do
-- when they are called:
--
-- 1. Send (error) messages to Io.Current_Error.
-- 2. Send output to current output. This is not typically
-- done for the editor-style commands.
-- 3. Send Log.Put_Line messages to the log file.
-- 4. Modify the image using procedures above.
-- 5. Perform external operations, possibly contacting the
-- workstation and possibly updating the object that
-- underlies the image.
--
procedure Check_If_Registration_Succeeded
(Status : in out Simple_Status.Condition);
-- Returns an error status indicating if the instantiation and
-- registration of the client was successful, and, if not,
-- what the error was. Common errors indicated below.
end Dtia_Client_Operations;
Gateway_Class_Not_Active : constant String := "Gateway class not active";
Server_Already_Exists : constant String := "Server already exists";
function Line_Contents (Id : Image_Id; Line : Positive) return String;
-- Return the specified line of the image. Return null string if
-- past the end of the image.
function Header_Contents (Id : Image_Id; Line : Positive) return String;
-- Return the specified line of the header. Return null string if
-- past the end of the header.
function Last_Line (Id : Image_Id) return Natural;
-- Return the number of the last line of the image, 0 if none.
function Last_Header_Line (Id : Image_Id) return Natural;
-- Return the number of the last header line of the image, 0 if none.
function Is_Modified (Image : Image_Id) return Boolean;
-- return true if image is modified
procedure Commit (Image : Image_Id; Success : out Boolean);
-- equivalent to Common.Commit:
-- If Image is modified, writes the image to the underlying object and
-- call Dispatch.Post_Commit; set Success false if any problem.
-- Otherwise, set Success true.
pragma Subsystem (Tools_Integration);
pragma Module_Name (4, 3997);
pragma Bias_Key (29);
end Dtia_Client;
nblk1=31
nid=0
hdr6=62
[0x00] rec0=1f rec1=00 rec2=01 rec3=030
[0x01] rec0=00 rec1=00 rec2=31 rec3=00a
[0x02] rec0=1b rec1=00 rec2=02 rec3=062
[0x03] rec0=00 rec1=00 rec2=30 rec3=032
[0x04] rec0=19 rec1=00 rec2=03 rec3=00c
[0x05] rec0=15 rec1=00 rec2=04 rec3=024
[0x06] rec0=02 rec1=00 rec2=2f rec3=004
[0x07] rec0=11 rec1=00 rec2=05 rec3=084
[0x08] rec0=16 rec1=00 rec2=06 rec3=026
[0x09] rec0=15 rec1=00 rec2=07 rec3=082
[0x0a] rec0=17 rec1=00 rec2=08 rec3=02c
[0x0b] rec0=14 rec1=00 rec2=09 rec3=08c
[0x0c] rec0=18 rec1=00 rec2=0a rec3=062
[0x0d] rec0=17 rec1=00 rec2=0b rec3=036
[0x0e] rec0=11 rec1=00 rec2=0c rec3=018
[0x0f] rec0=0f rec1=00 rec2=0d rec3=076
[0x10] rec0=13 rec1=00 rec2=0e rec3=044
[0x11] rec0=14 rec1=00 rec2=0f rec3=060
[0x12] rec0=17 rec1=00 rec2=10 rec3=08c
[0x13] rec0=12 rec1=00 rec2=11 rec3=030
[0x14] rec0=12 rec1=00 rec2=12 rec3=006
[0x15] rec0=11 rec1=00 rec2=13 rec3=042
[0x16] rec0=13 rec1=00 rec2=14 rec3=054
[0x17] rec0=15 rec1=00 rec2=15 rec3=054
[0x18] rec0=13 rec1=00 rec2=16 rec3=014
[0x19] rec0=16 rec1=00 rec2=17 rec3=004
[0x1a] rec0=15 rec1=00 rec2=18 rec3=06a
[0x1b] rec0=11 rec1=00 rec2=19 rec3=076
[0x1c] rec0=15 rec1=00 rec2=1a rec3=008
[0x1d] rec0=12 rec1=00 rec2=1b rec3=070
[0x1e] rec0=13 rec1=00 rec2=1c rec3=07a
[0x1f] rec0=13 rec1=00 rec2=1d rec3=02a
[0x20] rec0=11 rec1=00 rec2=1e rec3=08c
[0x21] rec0=16 rec1=00 rec2=1f rec3=00c
[0x22] rec0=12 rec1=00 rec2=20 rec3=002
[0x23] rec0=14 rec1=00 rec2=21 rec3=014
[0x24] rec0=12 rec1=00 rec2=22 rec3=038
[0x25] rec0=11 rec1=00 rec2=23 rec3=05c
[0x26] rec0=16 rec1=00 rec2=24 rec3=002
[0x27] rec0=12 rec1=00 rec2=25 rec3=01e
[0x28] rec0=13 rec1=00 rec2=26 rec3=032
[0x29] rec0=13 rec1=00 rec2=27 rec3=082
[0x2a] rec0=14 rec1=00 rec2=28 rec3=04a
[0x2b] rec0=15 rec1=00 rec2=29 rec3=00e
[0x2c] rec0=14 rec1=00 rec2=2a rec3=026
[0x2d] rec0=17 rec1=00 rec2=2b rec3=05e
[0x2e] rec0=17 rec1=00 rec2=2c rec3=01e
[0x2f] rec0=16 rec1=00 rec2=2d rec3=05e
[0x30] rec0=11 rec1=00 rec2=2e rec3=000
tail 0x2150b2dbc822a62a13241 0x42a00088462065003