bool
check_lock_file(const char *username)
{
bool ok;
char lock_file[PLF_MAX];
time_t time_now, time_file;
struct stat st_buf;
snprintf(lock_file, PLF_MAX, "%s-%s", LOCK_FILE, username);
if (stat (lock_file, &st_buf) < 0)
ok = false;
else {
time_file = st_buf.st_ctime;
time_now = time(NULL);
if (difftime(time_now, time_file) > (double)TIMEOUT_FILE) {
ok = false;
remove_lock_file(lock_file);
} else
ok = true;
}
return ok;
}
void quit() {
debug("GtkShot has exit" \
", you will not get shot image any more...\n");
remove_lock_file();
gtk_main_quit();
exit(0);
}
int main(int argc, char *argv[]) {
#ifdef ENABLE_NLS
bindtextdomain(GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR);
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
textdomain(GETTEXT_PACKAGE);
#endif
gint pid = new_lock_file();
if (pid > 0) {
if (kill(pid, WAKE_UP_SIGNAL) == 0) {
exit(0); // 进程确已存在,则退出新进程
} else { // 否则,重新创建锁定文件
remove_lock_file();
new_lock_file();
}
}
signal(WAKE_UP_SIGNAL, wake_up);
signal(SIGINT, exit_clean);
gtk_init(&argc, &argv);
shot = gtk_shot_new();
shot->quit = quit;
shot->dblclick = save_to_clipboard;
gtk_window_set_title(GTK_WINDOW(shot), GTK_SHOT_NAME);
GdkPixbuf *icon = gdk_pixbuf_new_from_xpm_data((const char**)gtkshot_xpm);
gtk_window_set_icon(GTK_WINDOW(shot), icon);
g_object_unref(icon);
gtk_shot_show(shot, TRUE);
gtk_main();
return 0;
}
static void remove_lock_file_on_signal(int signo)
{
remove_lock_file();
signal(signo, SIG_DFL);
raise(signo);
}
static void remove_lock_file_on_signal(int signo)
{
remove_lock_file();
sigchain_pop(signo);
raise(signo);
}
