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
|
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "libseat.h"
static void handle_enable(struct libseat *backend, void *data) {
(void)backend;
int *active = (int *)data;
(*active)++;
}
static void handle_disable(struct libseat *backend, void *data) {
(void)backend;
int *active = (int *)data;
(*active)--;
libseat_disable_seat(backend);
}
int main(int argc, char *argv[]) {
if (argc < 2) {
fprintf(stderr, "Specify name of file to open as argument\n");
return -1;
}
char *file = argv[1];
int active = 0;
struct libseat_seat_listener listener = {
.enable_seat = handle_enable,
.disable_seat = handle_disable,
};
struct libseat *backend = libseat_open_seat(&listener, &active);
fprintf(stderr, "libseat_open_seat(listener: %p, userdata: %p) = %p\n", (void *)&listener,
(void *)&active, (void *)backend);
if (backend == NULL) {
fprintf(stderr, "libseat_open_seat() failed: %s\n", strerror(errno));
return -1;
}
while (active == 0) {
fprintf(stderr, "waiting for activation...\n");
libseat_dispatch(backend, -1);
}
fprintf(stderr, "active!\n");
int fd, device;
device = libseat_open_device(backend, file, &fd);
fprintf(stderr, "libseat_open_device(backend: %p, path: %s, fd: %p) = %d\n",
(void *)backend, file, (void *)&fd, device);
if (device == -1) {
fprintf(stderr, "libseat_open_device() failed: %s\n", strerror(errno));
libseat_close_seat(backend);
return 1;
}
close(fd);
libseat_close_device(backend, device);
libseat_close_seat(backend);
return 0;
}
|
