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
|
/* Copyright 2000-2004 The Apache Software Foundation
*
* Licensed 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_errno.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include "apr_time.h"
#include "testshm.h"
#include "apr.h"
#if APR_HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if APR_HAS_SHARED_MEMORY
static int msgwait(int sleep_sec, int first_box, int last_box)
{
int i;
int recvd = 0;
apr_time_t start = apr_time_now();
apr_interval_time_t sleep_duration = apr_time_from_sec(sleep_sec);
while (apr_time_now() - start < sleep_duration) {
for (i = first_box; i < last_box; i++) {
if (boxes[i].msgavail && !strcmp(boxes[i].msg, MSG)) {
recvd++;
boxes[i].msgavail = 0; /* reset back to 0 */
memset(boxes[i].msg, 0, 1024);
}
}
apr_sleep(apr_time_from_sec(1));
}
return recvd;
}
int main(void)
{
apr_status_t rv;
apr_pool_t *pool;
apr_shm_t *shm;
int recvd;
apr_initialize();
if (apr_pool_create(&pool, NULL) != APR_SUCCESS) {
exit(-1);
}
rv = apr_shm_attach(&shm, SHARED_FILENAME, pool);
if (rv != APR_SUCCESS) {
exit(-2);
}
boxes = apr_shm_baseaddr_get(shm);
/* consume messages on all of the boxes */
recvd = msgwait(30, 0, N_BOXES); /* wait for 30 seconds for messages */
rv = apr_shm_detach(shm);
if (rv != APR_SUCCESS) {
exit(-3);
}
return recvd;
}
#else /* APR_HAS_SHARED_MEMORY */
int main(void)
{
/* Just return, this program will never be called, so we don't need
* to print a message
*/
return 0;
}
#endif /* APR_HAS_SHARED_MEMORY */
|
