| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S Y S T E M . P R O G R A M _ I N F O -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1997-2009, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package contains the definitions and routines used as parameters to |
| -- the run-time system at program startup for the SGI implementation. |
| |
| package System.Program_Info is |
| pragma Preelaborate; |
| |
| function Initial_Sproc_Count return Integer; |
| -- The number of sproc created at program startup for scheduling threads |
| |
| function Max_Sproc_Count return Integer; |
| -- The maximum number of sprocs that can be created by the program for |
| -- servicing threads. This limit includes both the pre-created sprocs and |
| -- those explicitly created under program control. |
| |
| function Sproc_Stack_Size return Integer; |
| -- The size, in bytes, of the sproc's initial stack |
| |
| function Default_Time_Slice return Duration; |
| -- The default time quanta for round-robin scheduling of threads of |
| -- equal priority. This default value can be overridden on a per-task |
| -- basis by specifying an alternate value via the implementation-defined |
| -- Task_Info pragma. See s-tasinf.ads for more information. |
| |
| function Default_Task_Stack return Integer; |
| -- The default stack size for each created thread. This default value can |
| -- be overridden on a per-task basis by the language-defined Storage_Size |
| -- pragma. |
| |
| function Stack_Guard_Pages return Integer; |
| -- The number of non-writable, guard pages to append to the bottom of |
| -- each thread's stack. |
| |
| function Pthread_Sched_Signal return Integer; |
| -- The signal used by the Pthreads library to affect scheduling actions |
| -- in remote sprocs. |
| |
| function Pthread_Arena_Size return Integer; |
| -- The size of the shared arena from which pthread locks are allocated. |
| -- See the usinit(3p) man page for more information on shared arenas. |
| |
| function Os_Default_Priority return Integer; |
| -- The default Irix Non-Degrading priority for each sproc created to |
| -- service threads. |
| |
| end System.Program_Info; |