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Diffstat (limited to '')
-rw-r--r-- | sandman.m | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/sandman.m b/sandman.m deleted file mode 100644 index 94c7d1a..0000000 --- a/sandman.m +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 2019 C. 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> - -static volatile sig_atomic_t sleeping; - -static void sigchld(int sig) { - (void)sig; - int status; - pid_t pid = wait(&status); - if (pid < 0) _exit(EX_OSERR); - if (WIFSIGNALED(status) && WTERMSIG(status) != SIGHUP) { - _exit(128 + WTERMSIG(status)); - } else if (!sleeping) { - _exit(WEXITSTATUS(status)); - } -} - -static pid_t spawn(char *argv[]) { - pid_t pid = fork(); - if (pid < 0) err(EX_OSERR, "fork"); - if (pid) return pid; - execvp(argv[0], argv); - err(EX_NOINPUT, "%s", argv[0]); -} - -static pid_t pid; - -int main(int argc, char *argv[]) { - if (argc < 2) return EX_USAGE; - - sigset_t mask; - sigemptyset(&mask); - struct sigaction action = { - .sa_handler = sigchld, - .sa_mask = mask, - .sa_flags = SA_NOCLDSTOP | SA_RESTART, - }; - sigaction(SIGCHLD, &action, NULL); - - pid = spawn(&argv[1]); - - [ - [[NSWorkspace sharedWorkspace] notificationCenter] - addObserverForName: NSWorkspaceWillSleepNotification - object: nil - queue: nil - usingBlock: ^(NSNotification *note) { - (void)note; - sleeping = 1; - int error = kill(pid, SIGHUP); - if (error) err(EX_UNAVAILABLE, "kill %d", pid); - } - ]; - - [ - [[NSWorkspace sharedWorkspace] notificationCenter] - addObserverForName: NSWorkspaceDidWakeNotification - object: nil - queue: nil - usingBlock: ^(NSNotification *note) { - (void)note; - sleeping = 0; - pid = spawn(&argv[1]); - } - ]; - - [[NSApplication sharedApplication] run]; -} |