From 22214b8c65fd01ec387634679626448702e6cb06 Mon Sep 17 00:00:00 2001
From: Wonsup Yoon <pusnow@kaist.ac.kr>
Date: Wed, 17 Nov 2021 10:30:55 +0900
Subject: [PATCH] [Hotfix] Fix solution debugging log

---
 include/E/Networking/E_NetworkLog.hpp | 17 +++++++++++++++++
 src/Networking/E_Host.cpp             |  2 +-
 src/Networking/E_NetworkLog.cpp       | 10 +++++++---
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/include/E/Networking/E_NetworkLog.hpp b/include/E/Networking/E_NetworkLog.hpp
index 06fdb01b6..69fbcc120 100644
--- a/include/E/Networking/E_NetworkLog.hpp
+++ b/include/E/Networking/E_NetworkLog.hpp
@@ -92,6 +92,23 @@ class NetworkLog {
 #endif
       ;
 
+  /**
+   * @brief Prints log with specified log level and format.
+   * NetworkLog::print_log prints logs specified in log level parameter.
+   * For example, if log level is set to TCP_LOG, it only prints TCP_LOG logs.
+   * If you want to print multiple log levels in NetworkLog,
+   * you can set log level with OR operation (i.e.  SYSCALL_ERROR |
+   * MODULE_ERROR).
+   *
+   * @note Log::print_log
+   *
+   * @param level log level
+   * @param format Format string
+   * @param args Print arguments for format string
+   *
+   */
+  void vprint_log(uint64_t level, const char *format, va_list args);
+
 public:
   /**
    * @brief Default log level.
diff --git a/src/Networking/E_Host.cpp b/src/Networking/E_Host.cpp
index 1e9cef049..1a2cec6f4 100644
--- a/src/Networking/E_Host.cpp
+++ b/src/Networking/E_Host.cpp
@@ -250,7 +250,7 @@ Size HostModule::getWireSpeed(int port_num) {
 void HostModule::print_log(uint64_t level, const char *format, ...) {
   va_list arglist;
   va_start(arglist, format);
-  host.print_log(level, format, arglist);
+  host.vprint_log(level, format, arglist);
   va_end(arglist);
 }
 
diff --git a/src/Networking/E_NetworkLog.cpp b/src/Networking/E_NetworkLog.cpp
index 087cb06cb..1d536262c 100644
--- a/src/Networking/E_NetworkLog.cpp
+++ b/src/Networking/E_NetworkLog.cpp
@@ -34,13 +34,17 @@ NetworkLog::NetworkLog(System &system, uint64_t level) : system(system) {
 NetworkLog::~NetworkLog() {}
 
 void NetworkLog::print_log(uint64_t level, const char *format, ...) {
+  va_list args;
+  va_start(args, format);
+  vprint_log(level, format, args);
+  va_end(args);
+}
+
+void NetworkLog::vprint_log(uint64_t level, const char *format, va_list args) {
   if (!(((1UL << level) & this->level)))
     return;
   printf("Time[%" PRIu64 "]\t", system.getCurrentTime());
-  va_list args;
-  va_start(args, format);
   vprintf(format, args);
-  va_end(args);
   printf("\n");
   fflush(stdout);
 }