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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-poosiz.ads')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-poosiz.ads | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-poosiz.ads b/gcc-4.2.1/gcc/ada/s-poosiz.ads new file mode 100644 index 000000000..4245f0a06 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-poosiz.ads @@ -0,0 +1,84 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . P O O L _ S I Z E -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2005 Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +with System.Storage_Pools; +with System.Storage_Elements; + +package System.Pool_Size is + pragma Elaborate_Body; + -- Needed to ensure that library routines can execute allocators + + ------------------------ + -- Stack_Bounded_Pool -- + ------------------------ + + -- Allocation strategy: + + -- Pool is a regular stack array, no use of malloc + -- user specified size + -- Space of pool is globally reclaimed by normal stack management + + -- Used in the compiler for access types with 'STORAGE_SIZE rep. clause + -- Only used for allocating objects of the same type. + + type Stack_Bounded_Pool + (Pool_Size : System.Storage_Elements.Storage_Count; + Elmt_Size : System.Storage_Elements.Storage_Count; + Alignment : System.Storage_Elements.Storage_Count) + is + new System.Storage_Pools.Root_Storage_Pool with record + First_Free : System.Storage_Elements.Storage_Count; + First_Empty : System.Storage_Elements.Storage_Count; + Aligned_Elmt_Size : System.Storage_Elements.Storage_Count; + The_Pool : System.Storage_Elements.Storage_Array + (1 .. Pool_Size); + end record; + + function Storage_Size + (Pool : Stack_Bounded_Pool) return System.Storage_Elements.Storage_Count; + + procedure Allocate + (Pool : in out Stack_Bounded_Pool; + Address : out System.Address; + Storage_Size : System.Storage_Elements.Storage_Count; + Alignment : System.Storage_Elements.Storage_Count); + + procedure Deallocate + (Pool : in out Stack_Bounded_Pool; + Address : System.Address; + Storage_Size : System.Storage_Elements.Storage_Count; + Alignment : System.Storage_Elements.Storage_Count); + + procedure Initialize (Pool : in out Stack_Bounded_Pool); + +end System.Pool_Size; |