swap: major rework, use /sbin/swapon for setting up swaps, fix merging of aliased...

[elogind.git] / src / util.c

diff --git a/src/util.c b/src/util.c
index 98dbe28b54643cdb6de11f52e0c316d2f3529053..d09e44777671b298f02eac2f1f7beea3152e1891 100644 (file)
--- a/src/util.c
+++ b/src/util.c
@@ -3308,6 +3308,23 @@ int wait_for_terminate_and_warn(const char *name, pid_t pid) {
 
 }
 
+void freeze(void) {
+        for (;;)
+                pause();
+}
+
+bool null_or_empty(struct stat *st) {
+        assert(st);
+
+        if (S_ISREG(st->st_mode) && st->st_size <= 0)
+                return true;
+
+        if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
+                return true;
+
+        return false;
+}
+
 static const char *const ioprio_class_table[] = {
         [IOPRIO_CLASS_NONE] = "none",
         [IOPRIO_CLASS_RT] = "realtime",