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1 706 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
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--                                                                          --
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--            S Y S T E M . S T A C K _ U S A G E . T A S K I N G           --
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--                                                                          --
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--                                  S p e c                                 --
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--                                                                          --
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--           Copyright (C) 2009-2010, Free Software Foundation, Inc.        --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNARL was developed by the GNARL team at Florida State University.       --
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-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
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--                                                                          --
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------------------------------------------------------------------------------
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--  This package provides exported subprograms to be called at debug time to
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--  measure stack usage at run-time.
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--  Note: this package must be a child package of System.Stack_Usage to have
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--  visibility over its private part; it is however part of GNARL because it
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--  needs to access tasking features via System.Tasking.Debug and
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--  System.Task_Primitives.Operations;
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package System.Stack_Usage.Tasking is
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   procedure Report_All_Tasks;
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   --  Print the current stack usage of all tasks on stderr. Exported to be
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   --  called also in debug mode.
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   pragma Export
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     (C,
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      Report_All_Tasks,
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      "__gnat_tasks_stack_usage_report_all_tasks");
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   procedure Report_Current_Task;
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   --  Print the stack usage of current task on stderr. Exported to be called
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   --  also in debug mode.
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   pragma Export
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     (C,
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      Report_Current_Task,
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      "__gnat_tasks_stack_usage_report_current_task");
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   subtype Stack_Usage_Result is System.Stack_Usage.Task_Result;
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   --  This type is a descriptor for task stack usage result
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   type Stack_Usage_Result_Array is
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     array (Positive range <>) of Stack_Usage_Result;
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   function Get_Current_Task_Usage return Stack_Usage_Result;
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   --  Return the current stack usage for the invoking task
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   function Get_All_Tasks_Usage return Stack_Usage_Result_Array;
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   --  Return an array containing the stack usage results for all tasks
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   procedure Print (Obj : Stack_Usage_Result);
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   --  Print Obj on stderr
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end System.Stack_Usage.Tasking;

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