hcl/lib2/h3-storage_pools.adb

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Ada
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2021-08-23 23:47:29 +00:00
with System;
with System.Address_Image;
with Ada.Text_IO;
package body H3.Storage_Pools is
function Sys_Malloc (Size: System_Size) return System.Address;
pragma Import (Convention => C, Entity => Sys_Malloc, External_Name => "malloc");
procedure Sys_Free (Ptr: System.Address);
pragma Import (Convention => C, Entity => Sys_Free, External_Name => "free");
procedure Allocate (Pool: in out Global_Pool;
Address : out System.Address;
Size: in SSE.Storage_Count;
Alignment: in SSE.Storage_Count) is
tmp: System.Address;
use type SSE.Storage_Count;
begin
tmp := Sys_Malloc(System_Size(((Size + Alignment - 1) / Alignment) * Alignment));
if System."="(tmp, System.Null_Address) then
raise Storage_Error;
else
Address := tmp;
Ada.Text_IO.Put_Line ("Global_Pool Allocating Size: " & SSE.Storage_Count'Image (Size) & " Actual-Size: " & SSE.Storage_Count'Image (((Size + Alignment - 1) / Alignment) * Alignment) & "Address: " & System.Address_Image(Address));
end if;
end Allocate;
procedure Deallocate (Pool: in out Global_Pool;
Address : in System.Address;
Size: in SSE.Storage_Count;
Alignment: in SSE.Storage_Count) is
begin
--Ada.Text_IO.Put_Line ("Global_Pool Deallocating Address: " & System.Address'Img);
Ada.Text_IO.Put_Line ("Global_Pool Deallocating " & System.Address_Image(Address));
Sys_Free (Address);
end Deallocate;
function Storage_Size (Pool: in Global_Pool) return SSE.Storage_Count is
begin
Ada.Text_IO.Put_Line ("Global_Pool Storage_Size ");
return SSE.Storage_Count'Last;
end Storage_Size;
-- TODO: find a better solution
-- gnat 3.15p somehow looks for the rountines below when H3.Pool is used.
-- let me put these routines here temporarily until i find a proper solution.
procedure Allocate_315P (Pool: in out SSP.Root_Storage_Pool'Class;
Address : out System.Address;
Size: in SSE.Storage_Count;
Alignment: in SSE.Storage_Count);
pragma Export (Ada, Allocate_315P, "system__storage_pools__allocate");
procedure Allocate_315P (Pool: in out SSP.Root_Storage_Pool'Class;
Address : out System.Address;
Size: in SSE.Storage_Count;
Alignment: in SSE.Storage_Count) is
begin
ada.text_io.put_line ("system__storage_pools__allocate...");
SSP.Allocate (Pool, Address, Size, Alignment);
end Allocate_315P;
procedure Deallocate_315P (Pool: in out SSP.Root_Storage_Pool'Class; Address : in System.Address; Size: in SSE.Storage_Count; Alignment: in SSE.Storage_Count);
pragma Export (Ada, Deallocate_315P, "system__storage_pools__deallocate");
procedure Deallocate_315P (Pool: in out SSP.Root_Storage_Pool'Class; Address : in System.Address; Size: in SSE.Storage_Count; Alignment: in SSE.Storage_Count) is
begin
ada.text_io.put_line ("system__storage_pools__deallocate...");
SSP.Deallocate (Pool, Address, Size, Alignment);
end Deallocate_315P;
end H3.Storage_Pools;