From 9c3076481dd5da4babc85a143bba0771212abb7b Mon Sep 17 00:00:00 2001
From: Arvid Norberg <arvid@libtorrent.org>
Date: Fri, 24 Dec 2010 03:30:52 +0000
Subject: [PATCH] hack to fix an issue in natpmp and upnp

---
 src/natpmp.cpp | 4 ++++
 src/upnp.cpp   | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/src/natpmp.cpp b/src/natpmp.cpp
index 917c86e74..d89642ef7 100644
--- a/src/natpmp.cpp
+++ b/src/natpmp.cpp
@@ -73,6 +73,10 @@ natpmp::natpmp(io_service& ios, address const& listen_interface
 	, m_disabled(false)
 	, m_abort(false)
 {
+	// unfortunately async operations rely on the storage
+	// for this array not to be reallocated, by passing
+	// around pointers to its elements. so reserve size for now
+	m_mappings.reserve(10);
 	rebind(listen_interface);
 }
 
diff --git a/src/upnp.cpp b/src/upnp.cpp
index 8e1b36c01..52989854c 100644
--- a/src/upnp.cpp
+++ b/src/upnp.cpp
@@ -88,6 +88,8 @@ upnp::upnp(io_service& ios, connection_queue& cc
 		m_mappings.swap(s->mappings);
 		delete s;
 	}
+
+	m_mappings.reserve(10);
 }
 
 void* upnp::drain_state()