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thechaingamer
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ada-git-code

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end if;
if Idx < Path'Last then
-- Intermediate entry: needs to be a directory
if not Is_Subdirectory (DEntry) then
return No_Such_Path;
end if;
end if;
end loop;
return OK;
end Find;
------------------
-- Update_Entry --
------------------
function Update_Entry
(Parent : FAT_Node;
Value : in out FAT_Node) return Status_Code
is
subtype Entry_Block is Block (1 .. 32);
function To_Block is new
Ada.Unchecked_Conversion (FAT_Directory_Entry, Entry_Block);
function To_Entry is new
Ada.Unchecked_Conversion (Entry_Block, FAT_Directory_Entry);
Ent : FAT_Directory_Entry;
Cluster : Cluster_Type := Parent.Start_Cluster;
Offset : FAT_File_Size := FAT_File_Size (Value.Index) * 32;
Block_Off : Natural;
Block : Block_Offset;
Ret : Status_Code;
begin
if not Value.Is_Dirty then
return OK;
end if;
while Offset > Parent.FS.Cluster_Size loop
Cluster := Parent.FS.Get_FAT (Cluster);
Offset := Offset - Parent.FS.Cluster_Size;
end loop;
Block := Block_Offset (Offset / Parent.FS.Block_Size);
Block_Off := Natural (Offset mod Parent.FS.Block_Size);
Ret := Parent.FS.Ensure_Block
(Parent.FS.Cluster_To_Block (Cluster) + Block);
if Ret /= OK then
return Ret;
end if;
Ent := To_Entry (Parent.FS.Window (Block_Off .. Block_Off + 31));
-- For now only the size can be modified, so just apply this
-- modification
Ent.Size := Value.Size;
Value.Is_Dirty := False;
Parent.FS.Window (Block_Off .. Block_Off + 31) := To_Block (Ent);
Ret := Parent.FS.Write_Window;
return Ret;
end Update_Entry;
----------------
-- Root_Entry --
----------------
function Root_Entry (FS : in out FAT_Filesystem) return FAT_Node
is
Ret : FAT_Node;
begin
Ret.FS := FS'Unchecked_Access;
Ret.Attributes := (Subdirectory => True,
others => False);
Ret.Is_Root := True;
Ret.L_Name := (Name => (others => ' '),
Len => 0);
if FS.Version = FAT16 then
Ret.Start_Cluster := 0;
else
Ret.Start_Cluster := FS.Root_Dir_Cluster;
end if;
Ret.Index := 0;
return Ret;
end Root_Entry;
----------------
-- Next_Entry --
----------------
function Next_Entry
(FS : access FAT_Filesystem;
Current_Cluster : in out Cluster_Type;
Current_Block : in out Block_Offset;
Current_Index : in out Entry_Index;
DEntry : out FAT_Directory_Entry) return Status_Code