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240 | --
-- Copyright (C) 2018-2023, AdaCore
--
-- SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
--
with Ada.Strings.UTF_Encoding.Wide_Strings;
with Ada.Wide_Characters.Unicode;
with Spawn.Internal.Monitor;
with Spawn.Internal.Windows;
package body Spawn.Internal is
use type Ada.Streams.Stream_Element_Offset;
use all type Spawn.Common.Pipe_Kinds;
package body Environments is
---------
-- "=" --
---------
function "=" (Left, Right : UTF_8_String) return Boolean is
begin
return To_Key (Left) = To_Key (Right);
end "=";
---------
-- "<" --
---------
function "<" (Left, Right : UTF_8_String) return Boolean is
begin
return To_Key (Left) < To_Key (Right);
end "<";
------------
-- To_Key --
------------
function To_Key (Text : UTF_8_String) return Wide_String is
Value : Wide_String :=
Ada.Strings.UTF_Encoding.Wide_Strings.Decode (Text);
begin
for Char of Value loop
Char := Ada.Wide_Characters.Unicode.To_Upper_Case (Char);
end loop;
return Value;
end To_Key;
end Environments;
--------------------------
-- Close_Standard_Error --
--------------------------
procedure Close_Standard_Error (Self : in out Process'Class) is
begin
Monitor.Enqueue ((Monitor.Close_Pipe, Self'Unchecked_Access, Stderr));
end Close_Standard_Error;
--------------------------
-- Close_Standard_Input --
--------------------------
procedure Close_Standard_Input (Self : in out Process'Class) is
begin
Monitor.Enqueue ((Monitor.Close_Pipe, Self'Unchecked_Access, Stdin));
end Close_Standard_Input;
---------------------------
-- Close_Standard_Output --
---------------------------
procedure Close_Standard_Output (Self : in out Process'Class) is
begin
Monitor.Enqueue ((Monitor.Close_Pipe, Self'Unchecked_Access, Stdout));
end Close_Standard_Output;
--------------
-- Finalize --
--------------
overriding procedure Finalize (Self : in out Process) is
begin
if Self.Status = Running then
raise Program_Error;
end if;
end Finalize;
----------------
-- Identifier --
----------------
function Identifier (Self : Process'Class) return String is
use type Spawn.Windows_API.DWORD;
Image : constant String := Self.pid.dwProcessId'Image;
begin
return (if Self.pid.dwProcessId = 0 then ""
else Image (2 .. Image'Last));
end Identifier;
------------------
-- Kill_Process --
------------------
procedure Kill_Process (Self : in out Process'Class) is
begin
Windows.Do_Kill_Process (Self);
end Kill_Process;
----------------
-- Loop_Cycle --
----------------
procedure Loop_Cycle (Timeout : Duration)
renames Spawn.Internal.Monitor.Loop_Cycle;
-------------------------
-- Read_Standard_Error --
-------------------------
procedure Read_Standard_Error
(Self : in out Process'Class;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Success : in out Boolean)
is
pragma Unreferenced (Success);
-- There are no synchronous IO errors in this implementation
procedure On_No_Data;
----------------
-- On_No_Data --
----------------
procedure On_No_Data is
begin
Monitor.Enqueue ((Monitor.Watch_Pipe, Self'Unchecked_Access, Stderr));
end On_No_Data;
begin
if Self.Status /= Running then
Last := Data'First - 1;
return;
end if;
Windows.Do_Read (Self, Data, Last, Stderr, On_No_Data'Access);
end Read_Standard_Error;
--------------------------
-- Read_Standard_Output --
--------------------------
procedure Read_Standard_Output
(Self : in out Process'Class;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Success : in out Boolean)
is
pragma Unreferenced (Success);
-- There are no synchronous IO errors in this implementation
procedure On_No_Data;
----------------
-- On_No_Data --
----------------
procedure On_No_Data is
begin
Monitor.Enqueue ((Monitor.Watch_Pipe, Self'Unchecked_Access, Stdout));
end On_No_Data;
begin
if Self.Status /= Running then
Last := Data'First - 1;
return;
end if;
Windows.Do_Read (Self, Data, Last, Stdout, On_No_Data'Access);
end Read_Standard_Output;
-----------
-- Start --
-----------
procedure Start (Self : in out Process'Class) is
begin
Self.Status := Starting;
Self.Exit_Code := -1;
Monitor.Enqueue ((Monitor.Start, Self'Unchecked_Access));
end Start;
-----------------------
-- Terminate_Process --
-----------------------
procedure Terminate_Process (Self : in out Process'Class) is
begin
Windows.Do_Terminate_Process (Self);
end Terminate_Process;
--------------------------
-- Write_Standard_Input --
--------------------------
procedure Write_Standard_Input
(Self : in out Process'Class;
Data : Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Success : in out Boolean)
is
pragma Unreferenced (Success);
-- There are no synchronous IO errors in this implementation
procedure On_Has_Data;
-----------------
-- On_Has_Data --
-----------------
procedure On_Has_Data is
begin
Monitor.Enqueue ((Monitor.Watch_Pipe, Self'Unchecked_Access, Stdin));
end On_Has_Data;
begin
if Self.Status /= Running or Data'Length = 0 then
Last := Data'First - 1;
return;
end if;
Windows.Do_Write (Self, Data, Last, On_Has_Data'Access);
end Write_Standard_Input;
end Spawn.Internal;
|