fixing hunter build and few c++ errors

CMakeLists.txt

@@ -36,8 +36,8 @@ include(silkworm/third_party/evmone/cmake/cable/bootstrap.cmake)
 include(CableBuildInfo)
 include(silkworm/third_party/evmone/cmake/cable/HunterGate.cmake)
 HunterGate(
-  URL "https://github.com/cpp-pm/hunter/archive/v0.24.3.tar.gz"
-  SHA1 "10738b59e539818a01090e64c2d09896247530c7"
+  URL "https://github.com/cpp-pm/hunter/archive/v0.24.16.tar.gz"
+  SHA1 "09668c254f01afeca1b3d3d2e4692ed5e0e39dcc"
   FILEPATH "${CMAKE_SOURCE_DIR}/cmake/Hunter/config.cmake"
 )
 

cmake/Hunter/config.cmake

@@ -15,13 +15,4 @@
 ]]
 
 # silkworm configuration
-include(${CMAKE_SOURCE_DIR}/silkworm/cmake/Hunter/config.cmake)
-
-hunter_config(
-    asio-grpc
-    VERSION 2.0.0
-    URL https://github.com/Tradias/asio-grpc/archive/refs/tags/v2.0.0.tar.gz
-    SHA1 a727806a5c93c811e8f73ecb1e733efc4739d5ff
-    CMAKE_ARGS
-      ASIO_GRPC_USE_BOOST_CONTAINER=ON
-)
+include(${CMAKE_SOURCE_DIR}/silkworm/cmake/Hunter/config.cmake)

cmd/engine_plugin.cpp

@@ -4,6 +4,7 @@
 #include <filesystem>
 #include <iostream>
 #include <string>
+#include <fstream>
 
 #include <boost/process/environment.hpp>
 #include <boost/filesystem.hpp>

silkrpc/http/server.cpp

@@ -78,22 +78,27 @@ boost::asio::awaitable<void> Server::run() {
             SILKRPC_DEBUG << "Server::run accepting using io_context " << io_context << "...\n" << std::flush;
 
             std::shared_ptr<Connection> new_connection;
+            bool wait_and_continue = false;
 
             try {
                 new_connection = std::make_shared<Connection>(context_, workers_, handler_table_);
                 co_await acceptor_.async_accept(new_connection->socket(), boost::asio::use_awaitable);
             } catch (const boost::system::system_error& se) {
                 if (se.code() == boost::asio::error::no_descriptors) {
                     SILKRPC_WARN << "Server::run too many open connections\n" << std::flush;
-                    boost::asio::steady_timer timer(acceptor_.get_executor());
-                    timer.expires_after(boost::asio::chrono::milliseconds(100));
-                    co_await timer.async_wait(boost::asio::use_awaitable);
-                    continue;
+                    wait_and_continue = true;
                 } else {
                     throw;
                 }
             }
 
+            if (wait_and_continue) {
+                boost::asio::steady_timer timer(acceptor_.get_executor());
+                timer.expires_after(boost::asio::chrono::milliseconds(100));
+                co_await timer.async_wait(boost::asio::use_awaitable);
+                continue;
+            }
+
             if (!acceptor_.is_open()) {
                 SILKRPC_TRACE << "Server::run returning...\n";
                 co_return;