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
|
/* Copyright (C) 2018 Curtis McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import <Cocoa/Cocoa.h>
#import <err.h>
#import <signal.h>
#import <stdlib.h>
#import <sysexits.h>
#import <unistd.h>
void sigchld(int sig) {
(void)sig;
int status;
pid_t pid = wait(&status);
if (pid < 0) err(EX_OSERR, "wait");
if (WIFSIGNALED(status)) {
_exit(128 + WTERMSIG(status));
} else {
_exit(WEXITSTATUS(status));
}
}
int main(int argc, char *argv[]) {
if (argc < 2) return EX_USAGE;
signal(SIGCHLD, sigchld);
pid_t pid = fork();
if (pid < 0) err(EX_OSERR, "fork");
if (!pid) {
execvp(argv[1], &argv[1]);
err(EX_NOINPUT, "%s", argv[1]);
}
[
[[NSWorkspace sharedWorkspace] notificationCenter]
addObserverForName: NSWorkspaceWillSleepNotification
object: nil
queue: [NSOperationQueue mainQueue]
usingBlock: ^(NSNotification *note) {
(void)note;
int error = kill(pid, SIGTSTP);
if (error) err(EX_UNAVAILABLE, "kill %d", pid);
}
];
[
[[NSWorkspace sharedWorkspace] notificationCenter]
addObserverForName: NSWorkspaceDidWakeNotification
object: nil
queue: [NSOperationQueue mainQueue]
usingBlock: ^(NSNotification *note) {
(void)note;
int error = kill(pid, SIGCONT);
if (error) err(EX_UNAVAILABLE, "kill %d", pid);
}
];
[[NSApplication sharedApplication] run];
}
|