From f27cf4777933f06f85fa2f013d56ca0a2cf1d588 Mon Sep 17 00:00:00 2001 From: Desour Date: Sun, 23 Aug 2020 19:44:25 +0200 Subject: Properly handle mod-errors in on_shutdown --- src/client/game.cpp | 3 ++- src/server.cpp | 17 +++++++++++++++-- src/server.h | 7 ++++++- 3 files changed, 23 insertions(+), 4 deletions(-) diff --git a/src/client/game.cpp b/src/client/game.cpp index 0d3a0ca15..920383aaf 100644 --- a/src/client/game.cpp +++ b/src/client/game.cpp @@ -1300,7 +1300,8 @@ bool Game::createSingleplayerServer(const std::string &map_dir, return false; } - server = new Server(map_dir, gamespec, simple_singleplayer_mode, bind_addr, false); + server = new Server(map_dir, gamespec, simple_singleplayer_mode, bind_addr, + false, nullptr, error_message); server->start(); return true; diff --git a/src/server.cpp b/src/server.cpp index ef36aedca..7b3978462 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -213,7 +213,8 @@ Server::Server( bool simple_singleplayer_mode, Address bind_addr, bool dedicated, - ChatInterface *iface + ChatInterface *iface, + std::string *on_shutdown_errmsg ): m_bind_addr(bind_addr), m_path_world(path_world), @@ -232,6 +233,7 @@ Server::Server( m_thread(new ServerThread(this)), m_clients(m_con), m_admin_chat(iface), + m_on_shutdown_errmsg(on_shutdown_errmsg), m_modchannel_mgr(new ModChannelMgr()) { if (m_path_world.empty()) @@ -314,7 +316,18 @@ Server::~Server() // Execute script shutdown hooks infostream << "Executing shutdown hooks" << std::endl; - m_script->on_shutdown(); + try { + m_script->on_shutdown(); + } catch (ModError &e) { + errorstream << "ModError: " << e.what() << std::endl; + if (m_on_shutdown_errmsg) { + if (m_on_shutdown_errmsg->empty()) { + *m_on_shutdown_errmsg = std::string("ModError: ") + e.what(); + } else { + *m_on_shutdown_errmsg += std::string("\nModError: ") + e.what(); + } + } + } infostream << "Server: Saving environment metadata" << std::endl; m_env->saveMeta(); diff --git a/src/server.h b/src/server.h index f44716531..be6f60abc 100644 --- a/src/server.h +++ b/src/server.h @@ -131,7 +131,8 @@ public: bool simple_singleplayer_mode, Address bind_addr, bool dedicated, - ChatInterface *iface = nullptr + ChatInterface *iface = nullptr, + std::string *on_shutdown_errmsg = nullptr ); ~Server(); DISABLE_CLASS_COPY(Server); @@ -596,6 +597,10 @@ private: ChatInterface *m_admin_chat; std::string m_admin_nick; + // if a mod-error occurs in the on_shutdown callback, the error message will + // be written into this + std::string *const m_on_shutdown_errmsg; + /* Map edit event queue. Automatically receives all map edits. The constructor of this class registers us to receive them through -- cgit v1.2.3