core: priorize notification fd processing over notification fd process via sd-event...

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index 80dbf73c947d4f501503b2cc3626f28c8afff289..f59897105a6354e1cea1c7261517e2a556c660ce 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -3469,7 +3469,7 @@ int wait_for_terminate_and_warn(const char *name, pid_t pid) {
         return -EPROTO;
 }
 
-_noreturn_ void freeze(void) {
+noreturn void freeze(void) {
 
         /* Make sure nobody waits for us on a socket anymore */
         close_all_fds(NULL, 0);
@@ -6088,3 +6088,13 @@ int namespace_enter(int pidns_fd, int mntns_fd, int root_fd) {
 
         return 0;
 }
+
+bool pid_valid(pid_t pid) {
+        if (pid <= 0)
+                return false;
+
+        if (kill(pid, 0) >= 0)
+                return true;
+
+        return errno != ESRCH;
+}