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------------------------------------------------------------------------------
-- --
-- FLORIST (FSU Implementation of POSIX.5) COMPONENTS --
-- --
-- P O S I X . G E N E R I C _ S H A R E D _ M E M O R Y --
-- --
-- S p e c --
-- --
-- Copyright (C) 1996-1997 Florida State University --
-- Copyright (C) 1998-2010, AdaCore --
-- --
-- This file is a component of FLORIST, an implementation of the POSIX --
-- Ada bindings for use with the GNAT Ada compiler and the FSU Gnu Ada --
-- Runtime Library (GNARL). --
-- --
-- This package specification contains some text extracted from IEEE STD --
-- 1003.5: 1990, Information Technology -- POSIX Ada Language Interfaces --
-- Part 1: Binding for System Application Program Interface, as amended --
-- by IEEE STD 1003.5b: 1996, Amendment 1: Realtime Extensions, copyright --
-- 1996 by the Institute of Electrical and Electronics Engineers, Inc. --
-- --
-- The package specifications in the IEEE standards cited above represent --
-- only a portion of the documents and are not to be interpreteted --
-- outside the context of the documents. The standards must be used in --
-- conjunction with the package specifications in order to claim --
-- conformance. The IEEE takes no responsibility for and will assume no --
-- liability for damages resulting from the reader's misinterpretation of --
-- said information resulting from its out-of-context nature. To order --
-- copies of the IEEE standards, please contact the IEEE Service Center --
-- at 445 Hoes Lane, PO Box 1331, Piscataway, NJ 08855-1331; via phone at --
-- 1-800-678-IEEE, 908-981-1393; or via fax at 908-981-9667. --
-- --
-- These package specifications are distributed in the hope that they --
-- will be useful, but WITHOUT ANY WARRANTY; without even the implied --
-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
------------------------------------------------------------------------------
-- .... Change POSIX.5b????
-- ========== --
-- WARNINGS --
-- ========== --
-- 1) DO NOT instantiate this package for a controlled type. If you
-- do, at best finalization will not work correctly. At worst, you
-- will crash the entire process.
-- 2) DO NOT instantiate and use Ada.Unchecked_Deallocation for the type
-- Shared_Access belonging to an instantiation of this package. If
-- you do, you are likely to end up corrupting the heap, and possibly
-- crashing the entire process.
with POSIX.IO,
POSIX.Permissions,
POSIX.Memory_Mapping;
generic
type Object_Type is private;
-- Do not instantiate with a controlled type!
-- See note below for reasons.
package POSIX.Generic_Shared_Memory is
type Shared_Access is access Object_Type;
function Open_And_Map_Shared_Memory
(Name : POSIX.POSIX_String;
Protection : POSIX.Memory_Mapping.Protection_Options;
Masked_Signals : POSIX.Signal_Masking := POSIX.RTS_Signals)
return POSIX.IO.File_Descriptor;
function Open_Or_Create_And_Map_Shared_Memory
(Name : POSIX.POSIX_String;
Protection : POSIX.Memory_Mapping.Protection_Options;
Permissions : POSIX.Permissions.Permission_Set;
Options : POSIX.IO.Open_Option_Set := POSIX.IO.Empty_Set;
Masked_Signals : POSIX.Signal_Masking := POSIX.RTS_Signals)
return POSIX.IO.File_Descriptor;
function Access_Shared_Memory
(File : POSIX.IO.File_Descriptor) return Shared_Access;
procedure Unmap_And_Close_Shared_Memory
(File : POSIX.IO.File_Descriptor);
procedure Lock_Shared_Memory (File : POSIX.IO.File_Descriptor);
procedure Unlock_Shared_Memory (File : POSIX.IO.File_Descriptor);
end POSIX.Generic_Shared_Memory;
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