From a70dc07f466194f24f0a92fa006f57381a26e1ef Mon Sep 17 00:00:00 2001
From: klaus triendl <klaus@triendl.eu>
Date: Wed, 2 Sep 2020 21:09:14 +0200
Subject: [PATCH] Fix memory leak in http writer's binary data cache (issue
 #11)

---
 include/pion/http/writer.hpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/pion/http/writer.hpp b/include/pion/http/writer.hpp
index e245ff3de..55c68a2c5 100644
--- a/include/pion/http/writer.hpp
+++ b/include/pion/http/writer.hpp
@@ -305,13 +305,19 @@ class PION_API writer :
     
     
     /// used to cache binary data included within the payload content
-    class binary_cache_t : public std::vector<std::pair<const char *, size_t> > {
+    class binary_cache_t : protected std::vector<std::pair<const char *, size_t> > {
     public:
         ~binary_cache_t() {
             for (iterator i=begin(); i!=end(); ++i) {
                 delete[] i->first;
             }
         }
+        void clear() {
+            for (iterator i = begin(); i != end(); ++i) {
+                delete[] i->first;
+            }
+            std::vector<std::pair<const char*, size_t> >::clear();
+        }
         inline boost::asio::const_buffer add(const void *ptr, const size_t size) {
             char *data_ptr = new char[size];
             memcpy(data_ptr, ptr, size);