diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 45 |
1 files changed, 30 insertions, 15 deletions
@@ -1006,18 +1006,6 @@ static int daemonize() return 0; } -/** - * signal handler function for cleaning up properly - */ -static void clean_exit(int sig) -{ - if (sig == SIGINT) { - if (verbose >= 1) - fprintf(stderr, "CTRL+C pressed\n"); - } - quit_flag = 1; -} - static void usage() { printf("usage: usbmuxd [options]\n"); @@ -1093,6 +1081,33 @@ static int devices_attached() } /** + * signal handler function for cleaning up properly + */ +static void handle_signal(int sig) +{ + if (sig == SIGTERM) { + quit_flag = 1; + } else { + if (sig == SIGINT) { + if (verbose >= 1) + fprintf(stderr, "CTRL+C pressed\n"); + } + + if (verbose >= 1) + fprintf(stderr, "Checking if we can terminate (no more devices attached)...\n"); + + if (devices_attached() > 0) { + // we can't quit, there are still devices attached. + if (verbose >= 1) + fprintf(stderr, "Refusing to terminate, there are still devices attached. Kill me with signal 15 (TERM) to force quit.\n"); + } else { + // it's safe to quit + quit_flag = 1; + } + } +} + +/** * main function. Initializes all stuff and then loops waiting in accept. */ int main(int argc, char **argv) @@ -1121,9 +1136,9 @@ int main(int argc, char **argv) logmsg(LOG_NOTICE, "starting"); // signal(SIGHUP, reload_conf); // none yet - signal(SIGINT, clean_exit); - signal(SIGQUIT, clean_exit); - signal(SIGTERM, clean_exit); + signal(SIGINT, handle_signal); + signal(SIGQUIT, handle_signal); + signal(SIGTERM, handle_signal); signal(SIGPIPE, SIG_IGN); // check for other running instance |