Celestin Apprentice 7/Apprentice-Release7.iso/Environments/Small Eiffel 0.4.8/lib_std/memory.e

Text File | 1997-04-13 | 2KB | 85 lines

-- Part of SmallEiffel -- Read DISCLAIMER file -- Copyright (C)
-- Dominique COLNET and Suzanne COLLIN -- [e-mail]
--
expanded class MEMORY
--
-- Facilities for tuning up the garbage collection, and
-- everything about memory control.
--

inherit PLATFORM;

feature -- Status Report :

   frozen collecting: BOOLEAN is
      -- Is garbage collection enabled ?
      do
     not_yet_implemented;
      end;

feature -- Status setting :

   frozen collection_off is
      -- Disable garbage collection.
      do
     not_yet_implemented;
      end;

   frozen collection_on is
      -- Enable garbage collection.
      do
     not_yet_implemented;
      end;

feature -- Removal :

   dispose is
     -- Action to be executed just before garbage collection
     -- reclaims an object.
      do
      end;

   frozen full_collect is
      -- Force a full collection cycle if garbage collection is
      -- enabled; do nothing otherwise.
      do
      end;

feature -- The Guru section (low level memory management) :

   pointer_size: INTEGER is
      -- The size in number of bytes for a pointer.
      external "CSE"
      end;

   malloc(size: INTEGER): POINTER is
      -- Memory allocation of `size' byte.
      require
     size > 0
      external "IC"
      end;

   calloc(number_of_objects, size_of_one: INTEGER): POINTER is
      -- Memory allocation of `size' byte.
      require
     number_of_objects > 0;
     size_of_one >= 1
      external "IC"
      end;

   realloc(pointer: POINTER; size: INTEGER): POINTER is
     -- Memory re-allocation of `size' byte.
      require
     pointer.is_not_void;
     size > 0
      external "IC"
      end;

   free(pointer: POINTER) is
      require
     pointer.is_not_void;
      external "IC"
      end;

end -- MEMORY