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comparison packages/kernel/current/tests/ksem1.c @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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-1:000000000000 0:3111d98ba7b3
1 /*=================================================================
2 //
3 // ksem1.c
4 //
5 // C API semaphore test 1
6 //
7 //==========================================================================
8 //####COPYRIGHTBEGIN####
9 //
10 // -------------------------------------------
11 // The contents of this file are subject to the Cygnus eCos Public License
12 // Version 1.0 (the "License"); you may not use this file except in
13 // compliance with the License. You may obtain a copy of the License at
14 // http://sourceware.cygnus.com/ecos
15 //
16 // Software distributed under the License is distributed on an "AS IS"
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
18 // License for the specific language governing rights and limitations under
19 // the License.
20 //
21 // The Original Code is eCos - Embedded Cygnus Operating System, released
22 // September 30, 1998.
23 //
24 // The Initial Developer of the Original Code is Cygnus. Portions created
25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
26 // -------------------------------------------
27 //
28 //####COPYRIGHTEND####
29 //==========================================================================
30 //#####DESCRIPTIONBEGIN####
31 //
32 // Author(s): dsm
33 // Contributors: dsm
34 // Date: 1998-03-20
35 // Description: Tests basic semaphore functionality.
36 //####DESCRIPTIONEND####
37 */
38
39 #include <cyg/kernel/kapi.h>
40
41 #include <cyg/infra/testcase.h>
42
43 #ifdef CYGFUN_KERNEL_API_C
44
45 #include "testaux.h"
46
47 #define NTHREADS 2
48 #define STACKSIZE 4096
49
50 static cyg_handle_t thread[NTHREADS];
51
52 static cyg_thread thread_obj[NTHREADS];
53 static char stack[NTHREADS][STACKSIZE];
54
55
56 static cyg_sem_t s0, s1, s2;
57
58 static volatile cyg_ucount8 q = 0;
59
60 static void entry0( cyg_addrword_t data )
61 {
62 cyg_ucount32 val;
63
64 cyg_semaphore_wait(&s0);
65 CHECK( 1 == q++ );
66 cyg_semaphore_post(&s1);
67 cyg_semaphore_wait(&s0);
68 CHECK( 3 == q++ );
69 cyg_semaphore_peek(&s0, &val);
70 CHECK( 0 == val);
71 CHECK( ! cyg_semaphore_trywait(&s0) );
72 cyg_semaphore_post(&s0);
73 CHECK( 4 == q++ );
74 cyg_semaphore_peek(&s0, &val);
75 CHECK( 1 == val);
76 cyg_semaphore_post(&s0);
77 cyg_semaphore_peek(&s0, &val);
78 CHECK( 2 == val);
79 cyg_semaphore_post(&s1);
80 cyg_semaphore_peek(&s2, &val);
81 CHECK( 0 == val);
82 cyg_semaphore_wait(&s2);
83 CHECK( 6 == q++ );
84 CYG_TEST_PASS_FINISH("Kernel C API Semaphore 1 OK");
85 }
86
87 static void entry1( cyg_addrword_t data )
88 {
89 cyg_ucount32 val;
90
91 cyg_semaphore_peek(&s1, &val);
92 CHECK( 2 == val);
93 cyg_semaphore_wait(&s1);
94 cyg_semaphore_peek(&s1, &val);
95 CHECK( 1 == val);
96 cyg_semaphore_wait(&s1);
97 CHECK( 0 == q++ );
98 cyg_semaphore_peek(&s0, &val);
99 CHECK( 0 == val);
100 cyg_semaphore_post(&s0);
101 cyg_semaphore_wait(&s1);
102 CHECK( 2 == q++ );
103 cyg_semaphore_post(&s0);
104 cyg_semaphore_wait(&s1);
105 CHECK( 5 == q++ );
106 cyg_semaphore_peek(&s0, &val);
107 CHECK( 2 == val);
108 CHECK( cyg_semaphore_trywait(&s0) );
109 cyg_semaphore_peek(&s0, &val);
110 CHECK( 1 == val);
111 CHECK( cyg_semaphore_trywait(&s0) );
112 cyg_semaphore_peek(&s0, &val);
113 CHECK( 0 == val);
114 cyg_semaphore_post(&s2);
115 cyg_semaphore_wait(&s0);
116 CYG_TEST_FAIL_FINISH("Not reached");
117 }
118
119 void ksem1_main( void )
120 {
121 CYG_TEST_INIT();
122
123 cyg_semaphore_init( &s0, 0);
124 cyg_semaphore_init( &s1, 2);
125 cyg_semaphore_init( &s2, 0);
126
127 cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "ksem1-0",
128 (void *)stack[0], STACKSIZE,&thread[0], &thread_obj[0]);
129 cyg_thread_resume(thread[0]);
130
131 cyg_thread_create(4, entry1 , (cyg_addrword_t)1, "ksem1-1",
132 (void *)stack[1], STACKSIZE, &thread[1], &thread_obj[1]);
133 cyg_thread_resume(thread[1]);
134
135 cyg_scheduler_start();
136
137 CYG_TEST_FAIL_FINISH("Not reached");
138 }
139
140 externC void
141 cyg_start( void )
142 {
143 ksem1_main();
144 }
145
146
147 #else /* def CYGFUN_KERNEL_API_C */
148 externC void
149 cyg_start( void )
150 {
151 CYG_TEST_INIT();
152 CYG_TEST_PASS_FINISH("Kernel C API layer disabled");
153 }
154 #endif /* def CYGFUN_KERNEL_API_C */
155
156 /* EOF ksem1.c */