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thechaingamer
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ada-git-code

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Status := Convert (File.Handle.Read (Addr, Ret));
if Status /= OK then
return 0;
else
return Convert (Ret);
end if;
end Read;
-----------
-- Write --
-----------
function Write
(File : File_Descriptor;
Addr : System.Address;
Length : File_Size)
return File_Size
is
Ret : HALFS.File_Size;
Status : Status_Code;
begin
if File.Handle = null then
return 0;
end if;
Ret := Convert (Length);
Status := Convert (File.Handle.Write (Addr, Ret));
if Status /= OK then
return 0;
else
return Convert (Ret);
end if;
end Write;
------------
-- Offset --
------------
function Offset
(File : File_Descriptor)
return File_Size
is
begin
if File.Handle /= null then
return Convert (File.Handle.Offset);
else
return 0;
end if;
end Offset;
----------
-- Seek --
----------
function Seek
(File : in out File_Descriptor;
Origin : Seek_Mode;
Amount : in out File_Size)
return Status_Code
is
Ret : Status_Code;
HALFS_Amount : HALFS.File_Size;
begin
if File.Handle /= null then
HALFS_Amount := Convert (Amount);
Ret := Convert (File.Handle.Seek (Convert (Origin), HALFS_Amount));
Amount := Convert (HALFS_Amount);
return Ret;
else
return Invalid_Parameter;
end if;
end Seek;
-------------------
-- Generic_Write --
-------------------
function Generic_Write
(File : File_Descriptor;
Value : T)
return Status_Code
is
begin
if File.Handle /= null then
return Convert (File.Handle.Write (Value'Address, T'Size / 8));
else
return Invalid_Parameter;
end if;
end Generic_Write;
------------------
-- Generic_Read --
------------------
function Generic_Read
(File : File_Descriptor;
Value : out T)
return Status_Code