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a058a7b3b9
Change uses of Unchecked_Conversion (which is obsolete since Ada 95) to Ada.Unchecked_Conversion to avoid warnings recently enabled in GNAT. Same for Unchecked_Deallocation. Previous patch only changed files used for production build; this patch changes files used for debug builds (and also for gnatsocks, for completeness). no-precommit-check (to avoid complains about copyright headers) Change-Id: I0a753b06a46ce56778b8de9c96607515bea7cf84
129 lines
5.7 KiB
Ada
129 lines
5.7 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- FLORIST (FSU Implementation of POSIX.5) COMPONENTS --
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-- --
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-- P O S I X . P R O C E S S _ E N V I R O N M E N T --
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-- --
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-- S p e c --
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-- --
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-- --
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-- This file is a component of FLORIST, an implementation of the POSIX --
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-- Ada bindings for use with the GNAT Ada compiler and the FSU Gnu Ada --
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-- Runtime Library (GNARL). --
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-- --
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-- This package specification contains some text extracted from IEEE STD --
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-- 1003.5: 1990, Information Technology -- POSIX Ada Language Interfaces --
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-- Part 1: Binding for System Application Program Interface, as amended --
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-- by IEEE STD 1003.5b: 1996, Amendment 1: Realtime Extensions, copyright --
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-- 1996 by the Institute of Electrical and Electronics Engineers, Inc. --
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-- --
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-- The package specifications in the IEEE standards cited above represent --
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-- only a portion of the documents and are not to be interpreteted --
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-- outside the context of the documents. The standards must be used in --
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-- conjunction with the package specifications in order to claim --
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-- conformance. The IEEE takes no responsibility for and will assume no --
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-- liability for damages resulting from the reader's misinterpretation of --
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-- said information resulting from its out-of-context nature. To order --
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-- copies of the IEEE standards, please contact the IEEE Service Center --
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-- at 445 Hoes Lane, PO Box 1331, Piscataway, NJ 08855-1331; via phone at --
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-- 1-800-678-IEEE, 908-981-1393; or via fax at 908-981-9667. --
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-- --
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-- These package specifications are distributed in the hope that they --
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-- will be useful, but WITHOUT ANY WARRANTY; without even the implied --
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-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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------------------------------------------------------------------------------
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with Ada.Unchecked_Conversion;
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package POSIX.Process_Environment is
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pragma Elaborate_Body;
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-- Process Parameters
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function Argument_List return POSIX.POSIX_String_List;
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-- .... Change POSIX.5?
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-- By rights, this function should have been a procedure.
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-- As a function, it is very awkward, since the type POSIX_String_List
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-- is limited (i.e. we cannot assign the value returned by the
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-- function above). Not only is this inefficient, it forces storage
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-- leakage, unless we implement POSIX_String_List as a controlled type
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-- with automatic storage reclamation -- which is still less efficient,
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-- and which nullifies the original reason for making POSIX_String_List
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-- a limited type!
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-- Environment Variables
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type Environment is limited private;
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procedure Copy_From_Current_Environment
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(Env : in out Environment);
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procedure Copy_To_Current_Environment
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(Env : Environment);
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procedure Copy_Environment
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(Source : Environment;
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Target : in out Environment);
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function Environment_Value_Of
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(Name : POSIX.POSIX_String;
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Env : Environment;
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Undefined : POSIX.POSIX_String := "")
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return POSIX.POSIX_String;
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function Environment_Value_Of
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(Name : POSIX.POSIX_String;
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Undefined : POSIX.POSIX_String := "")
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return POSIX.POSIX_String;
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function Is_Environment_Variable
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(Name : POSIX.POSIX_String;
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Env : Environment)
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return Boolean;
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function Is_Environment_Variable
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(Name : POSIX.POSIX_String)
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return Boolean;
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procedure Clear_Environment
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(Env : in out Environment);
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procedure Clear_Environment;
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procedure Set_Environment_Variable
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(Name : POSIX.POSIX_String;
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Value : POSIX.POSIX_String;
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Env : in out Environment);
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procedure Set_Environment_Variable
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(Name : POSIX.POSIX_String;
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Value : POSIX.POSIX_String);
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procedure Delete_Environment_Variable
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(Name : POSIX.POSIX_String;
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Env : in out Environment);
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procedure Delete_Environment_Variable
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(Name : POSIX.POSIX_String);
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function Length (Env : Environment) return Natural;
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function Length return Natural;
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generic
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with procedure Action
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(Name : POSIX.POSIX_String;
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Value : POSIX.POSIX_String;
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Quit : in out Boolean);
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procedure For_Every_Environment_Variable
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(Env : Environment);
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generic
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with procedure Action
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(Name : POSIX.POSIX_String;
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Value : POSIX.POSIX_String;
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Quit : in out Boolean);
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procedure For_Every_Current_Environment_Variable;
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-- Process Working Directory
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procedure Change_Working_Directory
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(Directory_Name : POSIX.Pathname);
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function Get_Working_Directory return POSIX.Pathname;
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private
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type Environment_List;
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type Environment is access Environment_List;
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function To_Environment is
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new Ada.Unchecked_Conversion (POSIX_String_List, Environment);
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function To_POSIX_String_List is
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new Ada.Unchecked_Conversion (Environment, POSIX_String_List);
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end POSIX.Process_Environment;
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