Lumiera 0.pre.04
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test-locking.c
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1/*
2 TEST-LOCKING - test locking functions
3
4 Copyright (C)
5 2008, Christian Thaeter <ct@pipapo.org>
6
7  **Lumiera** is free software; you can redistribute it and/or modify it
8  under the terms of the GNU General Public License as published by the
9  Free Software Foundation; either version 2 of the License, or (at your
10  option) any later version. See the file COPYING for further details.
11
12* *****************************************************************/
13
23#include "lib/test/test.h"
24#include "lib/mutex.h"
25#include "lib/recmutex.h"
26
27#include <stdio.h>
28#include <string.h>
29
30TESTS_BEGIN
31
32
33TEST (mutexsection)
34{
35 lumiera_mutex m;
36 lumiera_mutex_init (&m, "mutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
37
38 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
39 {
40 printf ("mutex locked section 1\n");
41 }
42
43 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
44 {
45 printf ("mutex locked section 2\n");
46 }
47
48 lumiera_mutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
49}
50
51
52TEST (mutexforgotunlock)
53{
54 lumiera_mutex m;
55 lumiera_mutex_init (&m, "mutexforgotunlock", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
56
57 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
58 {
59 break; // MUTEX_SECTIONS must not be left by a jump
60 }
61
62 lumiera_mutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
63}
64
65
66TEST (mutexexplicitunlock)
67{
68 lumiera_mutex m;
69 lumiera_mutex_init (&m, "mutexforgotunlock", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
70
71 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
72 {
73 ECHO("mutex locked section");
74 LUMIERA_MUTEX_SECTION_UNLOCK;
75 break;
76 }
77
78 lumiera_mutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
79}
80
81
82TEST (nestedmutexsection)
83{
84 lumiera_mutex m;
85 lumiera_mutex_init (&m, "m_mutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
86
87 lumiera_mutex n;
88 lumiera_mutex_init (&n, "n_mutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
89
90 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
91 {
92 printf ("outer mutex locked section\n");
93
94 LUMIERA_MUTEX_SECTION (NOBUG_ON, &n)
95 {
96 printf ("inner mutex locked section\n");
97 }
98 }
99
100 lumiera_mutex_destroy (&n, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
101 lumiera_mutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
102}
103
104TEST (chainedmutexsection)
105{
106 lumiera_mutex m;
107 lumiera_mutex_init (&m, "m_mutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
108
109 lumiera_mutex n;
110 lumiera_mutex_init (&n, "n_mutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
111
112 LUMIERA_MUTEX_SECTION (NOBUG_ON, &m)
113 {
114 printf ("outer mutex locked section\n");
115
116 LUMIERA_MUTEX_SECTION_CHAIN (NOBUG_ON, &n)
117 {
118 printf ("inner but not outer mutex locked section\n");
119 }
120 }
121
122 lumiera_mutex_destroy (&n, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
123 lumiera_mutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
124}
125
126
127
128TEST (recursivemutexsection)
129{
130 lumiera_recmutex m;
131 lumiera_recmutex_init (&m, "m_recmutexsection", &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
132
133
134 LUMIERA_RECMUTEX_SECTION (NOBUG_ON, &m)
135 {
136 printf ("recmutex locked once\n");
137
138 LUMIERA_RECMUTEX_SECTION (NOBUG_ON, &m)
139 {
140 printf ("recmutex locked twice\n");
141 }
142 }
143
144 lumiera_recmutex_destroy (&m, &NOBUG_FLAG(NOBUG_ON), NOBUG_CONTEXT);
145}
146
147
148/* ====== 10/2023 : partially dismantled
149 *
150 * After switching to C++14 Threads and Locking (#1279),
151 * some backend-services are no longer used...
152 * - rwlocksection
153 * - rwlockforgotunlock
154 * - rwdeadlockwr
155 * - rwdeadlockrw
156 * - rwlockdeadlockwr
157 * - rwlockdeadlockrw
158 * - conditionops
159 * - conditionsection
160 * - conditionforgotunlock
161 * - condition signaling (planned)
162 * - condition broadcasting (planned)
163 * - recconditionops
164 * - recconditionsection
165 * - recconditionforgotunlock
166 * - chainedrecconditionsection
167 * - nestedrecconditionsection
168 * - reccondition signaling (planned)
169 * - reccondition broadcasting (planned)
170 *
171 */
172
173TESTS_END
lumiera_mutex_destroy
LumieraMutex lumiera_mutex_destroy(LumieraMutex self, struct nobug_flag *flag, const struct nobug_context ctx)
Destroy a mutex variable.
Definition mutex.c:39
lumiera_mutex_init
LumieraMutex lumiera_mutex_init(LumieraMutex self, const char *purpose, struct nobug_flag *flag, const struct nobug_context ctx)
Initialise a mutex variable This initialises a 'fast' default mutex which must not be locked recursiv...
Definition mutex.c:21
mutex.h
Mutual exclusion locking, header.
LUMIERA_MUTEX_SECTION
#define LUMIERA_MUTEX_SECTION(nobugflag, mtx)
Mutual exclusive section.
Definition mutex.h:32
LUMIERA_MUTEX_SECTION_UNLOCK
#define LUMIERA_MUTEX_SECTION_UNLOCK
Definition mutex.h:77
LUMIERA_MUTEX_SECTION_CHAIN
#define LUMIERA_MUTEX_SECTION_CHAIN(nobugflag, mtx)
Mutual exclusion chainbuilder section.
Definition mutex.h:56
lumiera_recmutex_init
LumieraRecmutex lumiera_recmutex_init(LumieraRecmutex self, const char *purpose, struct nobug_flag *flag, const struct nobug_context ctx)
Initialise a recursive mutex variable Initialises a 'recursive' mutex which might be locked by the sa...
Definition recmutex.c:32
lumiera_recmutex_destroy
LumieraRecmutex lumiera_recmutex_destroy(LumieraRecmutex self, struct nobug_flag *flag, const struct nobug_context ctx)
Destroy a recursive mutex variable.
Definition recmutex.c:53
recmutex.h
Mutual exclusion locking, header.
LUMIERA_RECMUTEX_SECTION
#define LUMIERA_RECMUTEX_SECTION(nobugflag, mtx)
Recursive Mutual exclusive section.
Definition recmutex.h:32
test.h
Helpers and support macros for defining test executables in C.
TEST
#define TEST(name)
Definition test.h:45
TESTS_END
#define TESTS_END
Definition test.h:55
TESTS_BEGIN
#define TESTS_BEGIN
Definition test.h:34