File : s-multip.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- S Y S T E M . M U L T I P R O C E S S O R S --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2010-2015, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 ------------------------------------------------------------------------------
28
29 with Interfaces.C; use Interfaces.C;
30
31 package body System.Multiprocessors is
32
33 --------------------
34 -- Number_Of_CPUs --
35 --------------------
36
37 function Number_Of_CPUs return CPU is
38 begin
39 if CPU'Last = 1 then
40 return 1;
41 else
42 declare
43 function Gnat_Number_Of_CPUs return int;
44 pragma Import (C, Gnat_Number_Of_CPUs, "__gnat_number_of_cpus");
45 begin
46 return CPU (Gnat_Number_Of_CPUs);
47 end;
48 end if;
49 end Number_Of_CPUs;
50
51 end System.Multiprocessors;