77 lines
4.2 KiB
Ada
77 lines
4.2 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S Y S T E M . P R O G R A M _ I N F O --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1997-2009, 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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-- GNAT was originally developed by the GNAT team at New York 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 contains the definitions and routines used as parameters to
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-- the run-time system at program startup for the SGI implementation.
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package System.Program_Info is
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pragma Preelaborate;
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function Initial_Sproc_Count return Integer;
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-- The number of sproc created at program startup for scheduling threads
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function Max_Sproc_Count return Integer;
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-- The maximum number of sprocs that can be created by the program for
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-- servicing threads. This limit includes both the pre-created sprocs and
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-- those explicitly created under program control.
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function Sproc_Stack_Size return Integer;
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-- The size, in bytes, of the sproc's initial stack
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function Default_Time_Slice return Duration;
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-- The default time quanta for round-robin scheduling of threads of
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-- equal priority. This default value can be overridden on a per-task
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-- basis by specifying an alternate value via the implementation-defined
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-- Task_Info pragma. See s-tasinf.ads for more information.
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function Default_Task_Stack return Integer;
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-- The default stack size for each created thread. This default value can
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-- be overridden on a per-task basis by the language-defined Storage_Size
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-- pragma.
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function Stack_Guard_Pages return Integer;
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-- The number of non-writable, guard pages to append to the bottom of
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-- each thread's stack.
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function Pthread_Sched_Signal return Integer;
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-- The signal used by the Pthreads library to affect scheduling actions
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-- in remote sprocs.
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function Pthread_Arena_Size return Integer;
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-- The size of the shared arena from which pthread locks are allocated.
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-- See the usinit(3p) man page for more information on shared arenas.
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function Os_Default_Priority return Integer;
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-- The default Irix Non-Degrading priority for each sproc created to
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-- service threads.
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end System.Program_Info;
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