Small overhaul using string_view

luprex/core/cpp/driver-util.hpp

@@ -5,6 +5,8 @@
 #include "wrap-string.hpp"
 #include "wrap-vector.hpp"
 
+#include <istream>
+#include <ostream>
 #include <string_view>
 
 namespace drv {
@@ -13,6 +15,18 @@ void split_host_port(std::string_view target, std::string &host, std::string &po
 
 std::vector<std::string> parse_control_lst(std::string_view ctrl);
 
+
+
+// Write encoded data to a replay log.
+void wlog_byte(std::ostream &s, uint8_t byte);
+void wlog_uint16(std::ostream &s, uint16_t v);
+void wlog_string(std::ostream &s, std::string_view v);
+
+// Read encoded data from a file.
+uint8_t rlog_byte(std::istream &s);
+uint16_t rlog_uint16(std::istream &s);
+std::string_view rlog_string(std::istream &s, char *buf, size_t buflen);
+
 }
 
 #endif // DRIVER_UTIL_HPP