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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr_shm.h"
#include "apr_thread_proc.h"
#include "apr_file_io.h"
#include "apr_global_mutex.h"
#include "apr_errno.h"
#include "apr_general.h"
#include "apr_getopt.h"
#include "errno.h"
#include <stdio.h>
#include <stdlib.h>
#include "test_apr.h"
#define MAX_ITER 4000
#define MAX_COUNTER (MAX_ITER * 4)
apr_global_mutex_t *global_lock;
apr_pool_t *pool;
volatile int *x;
static int make_child(apr_proc_t **proc, apr_pool_t *p)
{
int i = 0;
*proc = apr_pcalloc(p, sizeof(**proc));
/* slight delay to allow things to settle */
apr_sleep (1);
if (apr_proc_fork(*proc, p) == APR_INCHILD) {
apr_initialize();
apr_global_mutex_child_init(&global_lock, NULL, p);
while (1) {
apr_global_mutex_lock(global_lock);
if (i == MAX_ITER) {
apr_global_mutex_unlock(global_lock);
exit(1);
}
i++;
(*x)++;
apr_global_mutex_unlock(global_lock);
}
exit(1);
}
return APR_SUCCESS;
}
static apr_status_t test_exclusive(const char *lockname)
{
apr_proc_t *p1, *p2, *p3, *p4;
apr_status_t s1, s2, s3, s4;
printf("Exclusive lock test\n");
printf("%-60s", " Initializing the lock");
s1 = apr_global_mutex_create(&global_lock, lockname, APR_LOCK_DEFAULT, pool);
if (s1 != APR_SUCCESS) {
printf("Failed!\n");
return s1;
}
printf("OK\n");
printf("%-60s", " Starting all of the processes");
fflush(stdout);
s1 = make_child(&p1, pool);
s2 = make_child(&p2, pool);
s3 = make_child(&p3, pool);
s4 = make_child(&p4, pool);
if (s1 != APR_SUCCESS || s2 != APR_SUCCESS ||
s3 != APR_SUCCESS || s4 != APR_SUCCESS) {
printf("Failed!\n");
return s1;
}
printf("OK\n");
printf("%-60s", " Waiting for processes to exit");
s1 = apr_proc_wait(p1, NULL, NULL, APR_WAIT);
s2 = apr_proc_wait(p2, NULL, NULL, APR_WAIT);
s3 = apr_proc_wait(p3, NULL, NULL, APR_WAIT);
s4 = apr_proc_wait(p4, NULL, NULL, APR_WAIT);
printf("OK\n");
if ((*x) != MAX_COUNTER) {
fprintf(stderr, "Locks don't appear to work! x = %d instead of %d\n",
(*x), MAX_COUNTER);
}
else {
printf("Test passed\n");
}
return APR_SUCCESS;
}
int main(int argc, const char * const *argv)
{
apr_status_t rv;
char errmsg[200];
const char *lockname = NULL;
const char *shmname = "shm.file";
apr_getopt_t *opt;
char optchar;
const char *optarg;
apr_shm_t *shm;
printf("APR Proc Mutex Test\n==============\n\n");
apr_initialize();
atexit(apr_terminate);
if (apr_pool_create(&pool, NULL) != APR_SUCCESS)
exit(-1);
if ((rv = apr_getopt_init(&opt, pool, argc, argv)) != APR_SUCCESS) {
fprintf(stderr, "Could not set up to parse options: [%d] %s\n",
rv, apr_strerror(rv, errmsg, sizeof errmsg));
exit(-1);
}
while ((rv = apr_getopt(opt, "f:", &optchar, &optarg)) == APR_SUCCESS) {
if (optchar == 'f') {
lockname = optarg;
}
}
if (rv != APR_SUCCESS && rv != APR_EOF) {
fprintf(stderr, "Could not parse options: [%d] %s\n",
rv, apr_strerror(rv, errmsg, sizeof errmsg));
exit(-1);
}
apr_shm_create(&shm, sizeof(int), shmname, pool);
x = apr_shm_baseaddr_get(shm);
if ((rv = test_exclusive(lockname)) != APR_SUCCESS) {
fprintf(stderr,"Exclusive Lock test failed : [%d] %s\n",
rv, apr_strerror(rv, (char*)errmsg, 200));
exit(-2);
}
return 0;
}
|
