Make header files individually compilable.

[nageru] / nageru / queue_length_policy.h

diff --git a/nageru/queue_length_policy.h b/nageru/queue_length_policy.h
index 0b8a4204fbcf7893d9f323ac6808fb7d66b04824..d5a77cc42b7121f2318cc948465def0d8715a838 100644 (file)
--- a/nageru/queue_length_policy.h
+++ b/nageru/queue_length_policy.h
@@ -2,6 +2,9 @@
 #define _QUEUE_LENGTH_POLICY_H 1
 
 #include <atomic>
+#include <chrono>
+#include <deque>
+#include <set>
 #include <string>
 #include <utility>
 #include <vector>