Make commands that fail, fail faster and move first idle check before first sleep, but after an initial 300ms sleep

sleep_utils.h

@@ -0,0 +1,15 @@
+#ifndef SLEEP_UTILS_H
+#define SLEEP_UTILS_H
+
+#include <time.h>
+#include <errno.h>
+
+/**
+ * Sleeps for the specified number of milliseconds unless interrupted by a signal.
+ *
+ * @param milliseconds The number of milliseconds to sleep.
+ * @return 0 on success, -1 on failure or being interrupted by a signal (sets errno to EINVAL if milliseconds is negative).
+ */
+int sleep_for_milliseconds(long milliseconds);
+
+#endif /* SLEEP_UTILS_H */