#define TIMEOUT_USEC (10 * USEC_PER_SEC)
static bool ignore_proc(pid_t pid) {
- char buf[PATH_MAX];
- FILE *f;
+ _cleanup_fclose_ FILE *f = NULL;
char c;
+ const char *p;
size_t count;
uid_t uid;
int r;
if (uid != 0)
return false;
- snprintf(buf, sizeof(buf), "/proc/%lu/cmdline", (unsigned long) pid);
- char_array_0(buf);
-
- f = fopen(buf, "re");
+ p = procfs_file_alloca(pid, "cmdline");
+ f = fopen(p, "re");
if (!f)
return true; /* not really, but has the desired effect */
count = fread(&c, 1, 1, f);
- fclose(f);
/* Kernel threads have an empty cmdline */
if (count <= 0)
}
}
-static int killall(int sig, Set *pids) {
+static int killall(int sig, Set *pids, bool send_sighup) {
_cleanup_closedir_ DIR *dir = NULL;
struct dirent *d;
_cleanup_free_ char *s;
get_process_comm(pid, &s);
- log_notice("Sending SIGKILL to PID %lu (%s).", (unsigned long) pid, strna(s));
+ log_notice("Sending SIGKILL to PID "PID_FMT" (%s).", pid, strna(s));
}
if (kill(pid, sig) >= 0) {
if (pids)
- set_put(pids, ULONG_TO_PTR((unsigned long) pid));
+ set_put(pids, ULONG_TO_PTR(pid));
} else if (errno != ENOENT)
log_warning("Could not kill %d: %m", pid);
+
+ if (send_sighup) {
+ /* Optionally, also send a SIGHUP signal, but
+ only if the process has a controlling
+ tty. This is useful to allow handling of
+ shells which ignore SIGTERM but react to
+ SIGHUP. We do not send this to processes that
+ have no controlling TTY since we don't want to
+ trigger reloads of daemon processes. Also we
+ make sure to only send this after SIGTERM so
+ that SIGTERM is always first in the queue. */
+
+
+ if (get_ctty_devnr(pid, NULL) >= 0)
+ kill(pid, SIGHUP);
+ }
}
return set_size(pids);
}
-void broadcast_signal(int sig, bool wait_for_exit) {
+void broadcast_signal(int sig, bool wait_for_exit, bool send_sighup) {
sigset_t mask, oldmask;
- Set *pids;
+ Set *pids = NULL;
if (wait_for_exit)
pids = set_new(trivial_hash_func, trivial_compare_func);
if (kill(-1, SIGSTOP) < 0 && errno != ESRCH)
log_warning("kill(-1, SIGSTOP) failed: %m");
- killall(sig, pids);
+ killall(sig, pids, send_sighup);
if (kill(-1, SIGCONT) < 0 && errno != ESRCH)
log_warning("kill(-1, SIGCONT) failed: %m");