Fix use-after-destroy bug in spawn

CMakeLists.txt

@@ -59,6 +59,7 @@ set(BOOST_HTTP_PROTO_DEPENDENCIES
     Boost::capy
     Boost::config
     Boost::core
+    Boost::json
     Boost::mp11
     Boost::static_assert
     Boost::system
@@ -122,7 +123,7 @@ if (BOOST_HTTP_PROTO_IS_ROOT)
         set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${BOOST_SRC_DIR}/tools/cmake/include")
     else ()
         # From Boost Package
-        find_package(Boost REQUIRED COMPONENTS buffers filesystem url)
+        find_package(Boost REQUIRED COMPONENTS buffers filesystem json url)
         foreach (BOOST_INCLUDE_LIBRARY ${BOOST_INCLUDE_LIBRARIES})
             if (NOT TARGET Boost::${BOOST_INCLUDE_LIBRARY})
                 add_library(Boost::${BOOST_INCLUDE_LIBRARY} ALIAS Boost::headers)

build/Jamfile

@@ -41,12 +41,14 @@ lib boost_http_proto
    : requirements
      <library>/boost//buffers
      <library>/boost//capy
+     <library>/boost/json//boost_json/<warnings-as-errors>off
      <library>/boost//url
      <include>../
      <define>BOOST_HTTP_PROTO_SOURCE
    : usage-requirements
      <library>/boost//buffers
      <library>/boost//capy
+     <library>/boost/json//boost_json/<warnings-as-errors>off
      <library>/boost//url
    ;
 

include/boost/http_proto/json.hpp

@@ -0,0 +1,22 @@
+//
+// Copyright (c) 2025 Vinnie Falco (vinnie.falco@gmail.com)
+//
+// 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)
+//
+// Official repository: https://github.com/cppalliance/http_proto
+//
+
+#ifndef BOOST_HTTP_PROTO_JSON_HPP
+#define BOOST_HTTP_PROTO_JSON_HPP
+
+#include <boost/http_proto/detail/config.hpp>
+#include <boost/json/value.hpp>
+
+namespace boost {
+namespace http_proto {
+
+} // http_proto
+} // boost
+
+#endif

src/server/route_handler.cpp

@@ -73,8 +73,9 @@ spawn(
                     return;
                 }
                 auto rv = std::move(std::get<1>(r));
+                auto resume_ = resume; // would be destroyed
                 h.destroy();
-                resume(rv);
+                resume_(rv);
             };
 
             ex.post([h]() { h.resume(); });

test/unit/json.cpp

@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2025 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// 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)
+//
+// Official repository: https://github.com/cppalliance/http_proto
+//
+
+// Test that header file is self-contained.
+#include <boost/http_proto/json.hpp>