73 lines
2.0 KiB
Objective-C
73 lines
2.0 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 sigchld(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) err(EX_OSERR, "wait");
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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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signal(SIGCHLD, sigchld);
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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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NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
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NSNotificationCenter *center = [workspace notificationCenter];
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NSOperationQueue *main = [NSOperationQueue mainQueue];
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[center addObserverForName:NSWorkspaceWillSleepNotification
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object:nil
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queue:main
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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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[center addObserverForName:NSWorkspaceDidWakeNotification
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object:nil
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queue:main
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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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[[NSApplication sharedApplication] run];
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}
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