diff --git a/src/synchronized_pool_resource.cpp b/src/synchronized_pool_resource.cpp
new file mode 100644
index 0000000..0a725e9
--- /dev/null
+++ b/src/synchronized_pool_resource.cpp
@@ -0,0 +1,111 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2015-2015. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#define BOOST_CONTAINER_SOURCE
+#include <boost/container/detail/config_begin.hpp>
+#include <boost/container/detail/workaround.hpp>
+#include <boost/container/detail/thread_mutex.hpp>
+
+#include <boost/container/pmr/synchronized_pool_resource.hpp>
+#include <cstddef>
+
+namespace {
+
+using namespace boost::container::dtl;
+
+class thread_mutex_lock
+{
+   thread_mutex &m_mut;
+
+   public:
+   explicit thread_mutex_lock(thread_mutex &m)
+      : m_mut(m)
+   {
+      m_mut.lock();
+   }
+
+   ~thread_mutex_lock()
+   {
+      m_mut.unlock();
+   }
+};
+
+}  //namespace {
+
+namespace boost {
+namespace container {
+namespace pmr {
+
+synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts, memory_resource* upstream) BOOST_NOEXCEPT
+   : m_mut(), m_pool_resource(opts, upstream)
+{}
+
+synchronized_pool_resource::synchronized_pool_resource() BOOST_NOEXCEPT
+   : m_mut(), m_pool_resource()
+{}
+
+synchronized_pool_resource::synchronized_pool_resource(memory_resource* upstream) BOOST_NOEXCEPT
+   : m_mut(), m_pool_resource(upstream)
+{}
+
+synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts) BOOST_NOEXCEPT
+   : m_mut(), m_pool_resource(opts)
+{}
+
+synchronized_pool_resource::~synchronized_pool_resource() //virtual
+{}
+
+void synchronized_pool_resource::release()
+{
+   thread_mutex_lock lck(m_mut); (void)lck;
+   m_pool_resource.release();
+}
+
+memory_resource* synchronized_pool_resource::upstream_resource() const
+{  return m_pool_resource.upstream_resource();  }
+
+pool_options synchronized_pool_resource::options() const
+{  return m_pool_resource.options();  }
+
+void* synchronized_pool_resource::do_allocate(std::size_t bytes, std::size_t alignment) //virtual
+{
+   thread_mutex_lock lck(m_mut); (void)lck;
+   return m_pool_resource.do_allocate(bytes, alignment);
+}
+
+void synchronized_pool_resource::do_deallocate(void* p, std::size_t bytes, std::size_t alignment) //virtual
+{
+   thread_mutex_lock lck(m_mut); (void)lck;
+   return m_pool_resource.do_deallocate(p, bytes, alignment);
+}
+
+bool synchronized_pool_resource::do_is_equal(const memory_resource& other) const BOOST_NOEXCEPT //virtual
+{  return this == dynamic_cast<const synchronized_pool_resource*>(&other);  }
+
+std::size_t synchronized_pool_resource::pool_count() const
+{  return m_pool_resource.pool_count();  }
+
+std::size_t synchronized_pool_resource::pool_index(std::size_t bytes) const
+{  return m_pool_resource.pool_index(bytes);  }
+
+std::size_t synchronized_pool_resource::pool_next_blocks_per_chunk(std::size_t pool_idx) const
+{  return m_pool_resource.pool_next_blocks_per_chunk(pool_idx);  }
+
+std::size_t synchronized_pool_resource::pool_block(std::size_t pool_idx) const
+{  return m_pool_resource.pool_block(pool_idx);  }
+
+std::size_t synchronized_pool_resource::pool_cached_blocks(std::size_t pool_idx) const
+{  return m_pool_resource.pool_cached_blocks(pool_idx);  }
+
+}  //namespace pmr {
+}  //namespace container {
+}  //namespace boost {
+
+#include <boost/container/detail/config_end.hpp>