Added many event catchers

* Window close
* CTRL-C
* etc.

src/Root.cpp

@@ -22,6 +22,7 @@
 #include "inifile/iniFile.h"
 
 #ifdef _WIN32
+	#include "conio.h"
 	#include <psapi.h>
 #elif defined(__linux__)
 	#include <fstream>
@@ -29,6 +30,8 @@
 	#include <mach/mach.h>
 #endif
 
+extern bool g_TERMINATE_EVENT_RAISED;
+
 
 
 
@@ -76,7 +79,7 @@ void cRoot::InputThread(void * a_Params)
 
 	cLogCommandOutputCallback Output;
 	
-	while (!(self.m_bStop || self.m_bRestart) && std::cin.good())
+	while (!self.m_bStop && !self.m_bRestart && !g_TERMINATE_EVENT_RAISED && std::cin.good())
 	{
 		AString Command;
 		std::getline(std::cin, Command);
@@ -85,10 +88,10 @@ void cRoot::InputThread(void * a_Params)
 			self.ExecuteConsoleCommand(TrimString(Command), Output);
 		}
 	}
-	
-	if (!(self.m_bStop || self.m_bRestart))
+
+	if (g_TERMINATE_EVENT_RAISED || !std::cin.good())
 	{
-		// We have come here because the std::cin has received an EOF and the server is still running; stop the server:
+		// We have come here because the std::cin has received an EOF / a terminate signal has been sent, and the server is still running; stop the server:
 		self.m_bStop = true;
 	}
 }
@@ -99,6 +102,12 @@ void cRoot::InputThread(void * a_Params)
 
 void cRoot::Start(void)
 {
+	#ifdef _WIN32
+	HWND hwnd = GetConsoleWindow();
+	HMENU hmenu = GetSystemMenu(hwnd, FALSE);
+	EnableMenuItem(hmenu, SC_CLOSE, MF_GRAYED); // Disable close button when starting up; it causes problems with our CTRL-CLOSE handling
+	#endif
+
 	cDeadlockDetect dd;
 	delete m_Log;
 	m_Log = new cMCLogger();
@@ -192,12 +201,20 @@ void cRoot::Start(void)
 		finishmseconds -= mseconds;
 
 		LOG("Startup complete, took %i ms!", finishmseconds);
+		#ifdef _WIN32
+		EnableMenuItem(hmenu, SC_CLOSE, MF_ENABLED); // Re-enable close button
+		#endif
 
-		while (!m_bStop && !m_bRestart)  // These are modified by external threads
+		while (!m_bStop && !m_bRestart && !g_TERMINATE_EVENT_RAISED)  // These are modified by external threads
 		{
 			cSleep::MilliSleep(1000);
 		}
 
+		if (g_TERMINATE_EVENT_RAISED)
+		{
+			m_bStop = true;
+		}
+
 		#if !defined(ANDROID_NDK)
 		delete m_InputThread; m_InputThread = NULL;
 		#endif
@@ -222,7 +239,7 @@ void cRoot::Start(void)
 		delete m_FurnaceRecipe;   m_FurnaceRecipe = NULL;
 		delete m_CraftingRecipes; m_CraftingRecipes = NULL;
 		LOGD("Forgetting groups...");
-		delete m_GroupManager; m_GroupManager = 0;
+		delete m_GroupManager; m_GroupManager = NULL;
 		LOGD("Unloading worlds...");
 		UnloadWorlds();
 		
@@ -233,12 +250,11 @@ void cRoot::Start(void)
 		cBlockHandler::Deinit();
 
 		LOG("Cleaning up...");
-		//delete HeartBeat; HeartBeat = 0;
-		delete m_Server; m_Server = 0;
+		delete m_Server; m_Server = NULL;
 		LOG("Shutdown successful!");
 	}
 
-	delete m_Log; m_Log = 0;
+	delete m_Log; m_Log = NULL;
 }
 
 

src/main.cpp

@@ -11,6 +11,10 @@
 	#include <dbghelp.h>
 #endif  // _MSC_VER
 
+// Here, we have some ALL CAPS variables, to give the impression that this is deeeep, gritty programming :P
+bool g_TERMINATE_EVENT_RAISED = false; // If something has told the server to stop; checked periodically in cRoot
+bool g_SERVER_TERMINATED = false; // Set to true when the server terminates, so our CTRL handler can then tell Windows to close the console
+
 
 
 
@@ -33,14 +37,21 @@
 
 
 
-
-void ShowCrashReport(int) 
+void NonCtrlHandler(int a_Signal) 
 {
-	std::signal(SIGSEGV, SIG_DFL);
+	LOGD("Terminate event raised from std::signal");
+	g_TERMINATE_EVENT_RAISED = true;
 
-	printf("\n\nMCServer has crashed!\n");
-
-	exit(-1);
+	switch (a_Signal)
+	{
+		case SIGSEGV:
+		{
+			std::signal(SIGSEGV, SIG_DFL);
+			LOGWARN("Segmentation fault; MCServer has crashed :(");
+			exit(EXIT_FAILURE);
+		}
+		default: break;
+	}
 }
 
 
@@ -111,13 +122,33 @@ LONG WINAPI LastChanceExceptionFilter(__in struct _EXCEPTION_POINTERS * a_Except
 
 
 
+#ifdef _WIN32
+// Handle CTRL events in windows, including console window close
+BOOL CtrlHandler(DWORD fdwCtrlType)
+{
+	g_TERMINATE_EVENT_RAISED = true;
+	LOGD("Terminate event raised from the Windows CtrlHandler");
+
+	if (fdwCtrlType == CTRL_CLOSE_EVENT)
+	{
+		while (!g_SERVER_TERMINATED) { cSleep::MilliSleep(100); } // Delay as much as possible to try to get the server to shut down cleanly
+	}
+
+	return TRUE;
+}
+#endif
+
+
+
+
+
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 // main:
 
 int main( int argc, char **argv )
 {
-	(void)argc;
-	(void)argv;
+	UNUSED(argc);
+	UNUSED(argv);
 	
 	#if defined(_MSC_VER) && defined(_DEBUG) && defined(ENABLE_LEAK_FINDER)
 	InitLeakFinder();
@@ -149,6 +180,13 @@ int main( int argc, char **argv )
 	}
 	#endif  // _WIN32 && !_WIN64
 	// End of dump-file magic
+
+	#ifdef _WIN32
+	if (!SetConsoleCtrlHandler((PHANDLER_ROUTINE)CtrlHandler, TRUE))
+	{
+		LOGERROR("Could not install the Windows CTRL handler!");
+	}
+	#endif
 	
 	#if defined(_DEBUG) && defined(_MSC_VER)
 	_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
@@ -160,7 +198,9 @@ int main( int argc, char **argv )
 	#endif  // _DEBUG && _MSC_VER
 
 	#ifndef _DEBUG
-	std::signal(SIGSEGV, ShowCrashReport);
+	std::signal(SIGSEGV, NonCtrlHandler);
+	std::signal(SIGTERM, NonCtrlHandler);
+	std::signal(SIGINT, NonCtrlHandler);
 	#endif
 
 	// DEBUG: test the dumpfile creation:
@@ -188,8 +228,10 @@ int main( int argc, char **argv )
 	#if defined(_MSC_VER) && defined(_DEBUG) && defined(ENABLE_LEAK_FINDER)
 	DeinitLeakFinder();
 	#endif
-	
-	return 0;
+
+	g_SERVER_TERMINATED = true;
+
+	return EXIT_SUCCESS;
 }