blob: 5285a7deb10b0521888e977390463c11f6872090 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
(* RTco.def provides minimal access to thread primitives.
Copyright (C) 2019-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
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/>. *)
DEFINITION MODULE FOR "C" RTco ;
FROM SYSTEM IMPORT ADDRESS ;
IMPORT RTentity ; (* Imported so the initialization call graph
understands that RTco.cc depends upon RTentity. *)
(* init initializes the module and allows the application to lazily invoke threads. *)
PROCEDURE init () : INTEGER ;
PROCEDURE initThread (p: PROC; stackSize: CARDINAL; interruptLevel: CARDINAL) : INTEGER ;
PROCEDURE initSemaphore (value: CARDINAL) : INTEGER ;
PROCEDURE wait (semaphore: INTEGER) ;
PROCEDURE signal (semaphore: INTEGER) ;
PROCEDURE transfer (VAR p1: INTEGER; p2: INTEGER) ;
PROCEDURE waitThread (tid: INTEGER) ;
PROCEDURE signalThread (tid: INTEGER) ;
PROCEDURE currentThread () : INTEGER ;
(* currentInterruptLevel returns the interrupt level of the current thread. *)
PROCEDURE currentInterruptLevel () : CARDINAL ;
(* turninterrupts returns the old interrupt level and assigns the interrupt level
to newLevel. *)
PROCEDURE turnInterrupts (newLevel: CARDINAL) : CARDINAL ;
(*
select access to the select system call which will be thread safe.
This is typically called from the idle process to wait for an interrupt.
*)
PROCEDURE select (p1: INTEGER;
p2: ADDRESS;
p3: ADDRESS;
p4: ADDRESS;
p5: ADDRESS) : INTEGER ;
END RTco.
|
