------------------------------------------------------------------------------ -- -- -- 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 -- -- . -- -- -- -- 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;