File : s-mudido.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- SYSTEM.MULTIPROCESSORS.DISPATCHING_DOMAINS --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2011-2014, Free Software Foundation, Inc. --
10 -- --
11 -- GNARL 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 -- GNARL was developed by the GNARL team at Florida State University. --
28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- Body used on unimplemented targets, where the operating system does not
33 -- support setting task affinities.
34
35 package body System.Multiprocessors.Dispatching_Domains is
36
37 -----------------------
38 -- Local subprograms --
39 -----------------------
40
41 procedure Freeze_Dispatching_Domains;
42 pragma Export
43 (Ada, Freeze_Dispatching_Domains, "__gnat_freeze_dispatching_domains");
44 -- Signal the time when no new dispatching domains can be created. It
45 -- should be called before the environment task calls the main procedure
46 -- (and after the elaboration code), so the binder-generated file needs to
47 -- import and call this procedure.
48
49 -----------------
50 -- Assign_Task --
51 -----------------
52
53 procedure Assign_Task
54 (Domain : in out Dispatching_Domain;
55 CPU : CPU_Range := Not_A_Specific_CPU;
56 T : Ada.Task_Identification.Task_Id :=
57 Ada.Task_Identification.Current_Task)
58 is
59 pragma Unreferenced (Domain, CPU, T);
60 begin
61 raise Dispatching_Domain_Error with "dispatching domains not supported";
62 end Assign_Task;
63
64 ------------
65 -- Create --
66 ------------
67
68 function Create (First : CPU; Last : CPU_Range) return Dispatching_Domain is
69 pragma Unreferenced (First, Last);
70 begin
71 return raise Dispatching_Domain_Error with
72 "dispatching domains not supported";
73 end Create;
74
75 function Create (Set : CPU_Set) return Dispatching_Domain is
76 pragma Unreferenced (Set);
77 begin
78 return raise Dispatching_Domain_Error with
79 "dispatching domains not supported";
80 end Create;
81
82 -----------------------------
83 -- Delay_Until_And_Set_CPU --
84 -----------------------------
85
86 procedure Delay_Until_And_Set_CPU
87 (Delay_Until_Time : Ada.Real_Time.Time;
88 CPU : CPU_Range)
89 is
90 pragma Unreferenced (Delay_Until_Time, CPU);
91 begin
92 raise Dispatching_Domain_Error with "dispatching domains not supported";
93 end Delay_Until_And_Set_CPU;
94
95 --------------------------------
96 -- Freeze_Dispatching_Domains --
97 --------------------------------
98
99 procedure Freeze_Dispatching_Domains is
100 begin
101 null;
102 end Freeze_Dispatching_Domains;
103
104 -------------
105 -- Get_CPU --
106 -------------
107
108 function Get_CPU
109 (T : Ada.Task_Identification.Task_Id :=
110 Ada.Task_Identification.Current_Task) return CPU_Range
111 is
112 pragma Unreferenced (T);
113 begin
114 return Not_A_Specific_CPU;
115 end Get_CPU;
116
117 -----------------
118 -- Get_CPU_Set --
119 -----------------
120
121 function Get_CPU_Set (Domain : Dispatching_Domain) return CPU_Set is
122 pragma Unreferenced (Domain);
123 begin
124 return raise Dispatching_Domain_Error
125 with "dispatching domains not supported";
126 end Get_CPU_Set;
127
128 ----------------------------
129 -- Get_Dispatching_Domain --
130 ----------------------------
131
132 function Get_Dispatching_Domain
133 (T : Ada.Task_Identification.Task_Id :=
134 Ada.Task_Identification.Current_Task) return Dispatching_Domain
135 is
136 pragma Unreferenced (T);
137 begin
138 return System_Dispatching_Domain;
139 end Get_Dispatching_Domain;
140
141 -------------------
142 -- Get_First_CPU --
143 -------------------
144
145 function Get_First_CPU (Domain : Dispatching_Domain) return CPU is
146 pragma Unreferenced (Domain);
147 begin
148 return CPU'First;
149 end Get_First_CPU;
150
151 ------------------
152 -- Get_Last_CPU --
153 ------------------
154
155 function Get_Last_CPU (Domain : Dispatching_Domain) return CPU_Range is
156 pragma Unreferenced (Domain);
157 begin
158 return Number_Of_CPUs;
159 end Get_Last_CPU;
160
161 -------------
162 -- Set_CPU --
163 -------------
164
165 procedure Set_CPU
166 (CPU : CPU_Range;
167 T : Ada.Task_Identification.Task_Id :=
168 Ada.Task_Identification.Current_Task)
169 is
170 pragma Unreferenced (CPU, T);
171 begin
172 raise Dispatching_Domain_Error with "dispatching domains not supported";
173 end Set_CPU;
174
175 end System.Multiprocessors.Dispatching_Domains;