// Various routines that deal with parsing the configuration file.
-#include <vector>
+#include <stddef.h>
#include <string>
+#include <vector>
struct MarkPoolConfig {
int from, to;
struct StreamConfig {
std::string stream_id;
std::string src; // Can be empty.
+ size_t backlog_size;
int mark_pool; // -1 for none.
};