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