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
|
| #include "usg_common.h"
|
| #define THREADS 4
|
| typedef struct shm_packet_t {
| int key;
| size_t size;
| void * buf;
| char uuid[64];
| int action;
|
| } shm_packet_t;
|
|
| void *_run_(void *arg) {
| std::map<int, shm_packet_t> * amap = (std::map<int, shm_packet_t> *)arg;
| std::map<int, shm_packet_t>::iterator iter;
| iter = amap->find(2);
| while( iter != amap->end() ) {
| amap->erase(iter);
| iter = amap->find(2);
| sleep(1);
| }
|
| }
|
| int main() {
| int i;
| pthread_t tids[THREADS];
| std::map<int, shm_packet_t> * amap = new std::map<int, shm_packet_t>;
|
| for (i = 0; i < THREADS; i++) {
|
| pthread_create(&tids[i], NULL, _run_, (void *)&amap);
| }
|
| shm_packet_t pack;
| pack.key = 2;
|
| while(true) {
| sleep(1);
| amap->insert({2, pack});
| }
|
|
| for (i = 0; i < THREADS; i++) {
| if (pthread_join(tids[i], NULL) != 0) {
| perror(" pthread_join");
| }
| }
|
| }
|
|