1 /*---------------------------------------------------------------------------*
2 Project: Thread Demo -- No. 4
3 File: threaddemo4.c
4
5 Copyright 1998, 1999 Nintendo. All rights reserved.
6
7 These coded instructions, statements, and computer programs contain
8 proprietary information of Nintendo of America Inc. and/or Nintendo
9 Company Ltd., and are protected by Federal copyright law. They may
10 not be disclosed to third parties or copied or duplicated in any form,
11 in whole or in part, without the prior written consent of Nintendo.
12
13 $Log: threaddemo4.c,v $
14 Revision 1.2 02/20/2006 04:13:11 mitu
15 changed include path from dolphin/ to revolution/.
16
17 Revision 1.1 01/13/2006 11:24:13 hiratsu
18 Initial check in.
19
20
21 2 6/07/00 6:12p Tian
22 Updated OSCreateThread and idle function APIs
23
24 1 2/16/00 2:23p Tian
25 Cleaned up and moved to demos
26
27 1 2/08/00 5:11p Shiki
28 Initial check-in.
29 $NoKeywords: $
30 *---------------------------------------------------------------------------*/
31
32 #include <stdio.h>
33 #include <stdarg.h>
34 #include <revolution.h>
35
36
37 OSThread Thread;
38 u8 ThreadStack[4096];
39
40 OSMutex Mutex;
41
42 //
43 // Synchronous print
44 //
SyncPrint(char * msg)45 static void SyncPrint(char* msg)
46 {
47 OSLockMutex(&Mutex);
48 OSReport(msg);
49 OSUnlockMutex(&Mutex);
50 }
51
52 //
53 // Another thread competing for OSReport output
54 //
ThreadFunc(void * arg)55 static void * ThreadFunc(void * arg)
56 {
57 #pragma unused(arg)
58 u32 i;
59
60 for (i = 0; i < 16; i++)
61 {
62 SyncPrint("<Thread1 says Hi!>\n");
63 OSYieldThread();
64 }
65
66 return 0;
67 }
68
69
main(void)70 void main(void)
71 {
72 u32 i;
73
74 OSInit();
75
76 //
77 // Creates a new thread. The thread is suspended by default.
78 //
79 OSCreateThread(
80 &Thread, // ptr to the thread to init
81 ThreadFunc, // ptr to the start routine
82 0, // param passed to start routine
83 ThreadStack + sizeof ThreadStack, // initial stack address
84 sizeof ThreadStack, // stack size
85 16, // scheduling priority
86 OS_THREAD_ATTR_DETACH); // detached
87
88
89 //
90 // Starts the thread
91 //
92 OSResumeThread(&Thread);
93
94 //
95 // Initializes the mutex
96 //
97 OSInitMutex(&Mutex);
98
99 //
100 // Main loop
101 //
102 for (i = 0; i < 16; i++)
103 {
104 SyncPrint("<Main thread says Hi!>\n");
105 OSYieldThread();
106 }
107
108 OSHalt("Demo Complete");
109 }
110