X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Fapplication.cpp;h=a588e9dbb7900cff2b3d15a200f41a9be2382d8f;hb=1876f64c4ec1bcba8de57b8b5f63e250187b4ad1;hp=a9aa88ea55bdee578d81238d614120a962be2173;hpb=e1ea831a640fba534e7e42e399f04cdf681ef8d3;p=libs%2Fcore.git

diff --git a/source/core/application.cpp b/source/core/application.cpp
index a9aa88e..a588e9d 100644
--- a/source/core/application.cpp
+++ b/source/core/application.cpp
@@ -1,45 +1,27 @@
-/*
-This file is part of libmspframework
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
+/* $Id$
+
+This file is part of libmspcore
+Copyright © 2006-2008, 2011  Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
+
 #include <signal.h>
 #include <iostream>
+#include <typeinfo>
+#include "../debug/backtrace.h"
+#include "../debug/demangle.h"
+#include "../time/units.h"
+#include "../time/utils.h"
 #include "application.h"
-#include "error.h"
+#include "except.h"
 
 using namespace std;
 
 namespace Msp {
 
-Poller::Slot &Application::add_pollable(Pollable *obj, short events)
-{
-	if(!poller_)
-		poller_=new Poller;
-	
-	Poller::Slot &slot=poller_->add_pollable(obj, events);
-	// Interrupt a possible poll in progress
-#ifndef WIN32  //XXX
-	pthread_kill(main_tid, SIGALRM);
-#endif
-	return slot;
-}
-
-EventManager::Event &Application::create_event()
-{
-	if(!ev_mgr_)
-		ev_mgr_=new EventManager(*this);
-
-	return ev_mgr_->create_event();
-}
-
-Application::~Application()
-{
-	if(poller_)
-		delete poller_;
-	if(ev_mgr_)
-		delete ev_mgr_;
-}
+Application::Application():
+	exit_code(0)
+{ }
 
 /**
 Constructs an instance of the registered application class and runs it.  If the
@@ -48,7 +30,7 @@ application throws a UsageError, the static usage() function is called.
 This function can only be called once.  The global main() function provided by
 the library normally does it automatically at program startup.
 */
-int Application::run(int argc, char **argv)
+int Application::run(int argc, char **argv, void *data)
 {
 	static bool called=false;
 	if(called)
@@ -58,92 +40,80 @@ int Application::run(int argc, char **argv)
 	}
 	called=true;
 
-	if(!reg_app_)
+	if(!starter_)
 	{
-		cerr<<"Trying to run with no application class registered!\n";
+		cerr<<"Trying to run with no RegisteredApplication class!\n";
 		return 126;
 	}
 
-#ifndef WIN32 //XXX
-	signal(SIGALRM, &sigalrm_);
-#endif
-	
+	data_=data;
+
 	try
 	{
-		app_=reg_app_->create_app(argc, argv);
+		try
+		{
+			app_=starter_->create_app(argc, argv);
+		}
+		catch(const UsageError &e)
+		{
+			starter_->usage(e.what(), argv[0], e.get_brief());
+			return 1;
+		}
+
+		int result=app_->main();
+		delete app_;
+		return result;
 	}
-	catch(const UsageError &e)
+	catch(const exception &e)
 	{
-		reg_app_->usage(argv[0], e.get_brief());
-		return 1;
-	}
+		delete app_;
+
+#ifdef WIN32
+		string msg=Debug::demangle(typeid(e).name())+":\n"+e.what();
+		MessageBoxA(0, msg.c_str(), "Uncaught exception", MB_OK|MB_ICONERROR);
+#else
+		cerr<<"An uncaught exception occurred.\n";
+		cerr<<"  type:   "<<Debug::demangle(typeid(e).name())<<'\n';
+		cerr<<"  what(): "<<e.what()<<'\n';
+
+		const Exception *exc=dynamic_cast<const Exception *>(&e);
+		if(exc && !exc->get_backtrace().get_frames().empty())
+		{
+			cerr<<"  backtrace:\n";
+			const list<Debug::Backtrace::StackFrame> &frames=exc->get_backtrace().get_frames();
+			for(list<Debug::Backtrace::StackFrame>::const_iterator i=frames.begin(); i!=frames.end(); ++i)
+				cerr<<"    "<<*i<<'\n';
+		}
+#endif
 
-	int result=app_->main();
-	delete app_;
-	return result;
+		return 124;
+	}
 }
 
 /**
 Prints a message describing the usage of the application.  The default version
 will blame the programmer for being lazy.
 
-@param   argv0  The value of argv[0], to be used in the message
-@param   brief  Whether to print a brief or long usage message
+@param   reason  Why the function was called
+@param   argv0   The value of argv[0], to be used in the message
+@param   brief   Whether to print a brief or long usage message
 */
-void Application::usage(const char *, bool)
+void Application::usage(const char *reason, const char *, bool)
 {
+	if(reason)
+		cerr<<"UsageError: "<<reason<<'\n';
 	cerr<<"The programmer was lazy and didn't write a usage() function for this application.\n";
 }
 
-Application::Application():
-	exit_code(0),
-	tick_mode_(IDLE),
-	poller_(0),
-	ev_mgr_(0)
-#ifndef WIN32
-	//XXX Figure out how to get the current thread on win32
-	,main_tid(pthread_self())
-#endif
-{ }
-
 /**
-Default main loop.  Calls tick() periodically if do_ticks is true, otherwise
-just sleeps.  A custom main loop should monitor the done member variable and
-return exit_code.
+Default main loop.  Calls tick() repeatedly until exit() is called.  A custom
+main loop should monitor the done member variable and return exit_code.
 */
 int Application::main()
 {
-	done=false;
+	done = false;
 	while(!done)
-	{
-		if(tick_mode_==IDLE)
-		{
-			if(poller_)
-				poller_->poll(0);
-			tick();
-#ifdef WIN32
-			Sleep(0);
-#else
-			sched_yield();
-#endif
-		}
-		else
-		{
-			if(poller_)
-				poller_->poll(-1);
-			else
-			{
-#ifdef WIN32
-				Sleep(1);
-#else
-				timespec ts={1000,0};
-				nanosleep(&ts, 0);
-#endif
-			}
-			if(tick_mode_!=NONE)
-				tick();
-		}
-	}
+		tick();
 
 	return exit_code;
 }
@@ -156,43 +126,34 @@ void Application::catch_signal(int s)
 	signal(s, &sighandler_);
 }
 
-void Application::set_tick_mode(TickMode t)
-{
-	tick_mode_=t;
-#ifndef WIN32 //XXX
-	pthread_kill(main_tid, SIGALRM);	
-#endif
-}
-
 /**
 Causes the application to exit gracefully with the given exit code.
 */
 void Application::exit(int c)
 {
-	done=true;
-	exit_code=c;
-#ifndef WIN32 //XXX
-	pthread_kill(main_tid, SIGALRM);	
-#endif
+	done = true;
+	exit_code = c;
 }
 
+/**
+Static wrapper function to call a member function of the Application instance.
+*/
 void Application::sighandler_(int s)
 {
 	app_->sighandler(s);
 }
 
-Application::RegBase::RegBase()
+
+Application::Starter::Starter()
 {
-	if(reg_app_)
-	{
-		cerr<<"Warning: registering the application twice\n";
-		delete reg_app_;
-	}
+	if(starter_)
+		throw InvalidState("Can't create more than one Starter instance");
 
-	reg_app_=this;
+	starter_=this;
 }
 
 Application *Application::app_=0;
 Application::RegBase *Application::reg_app_=0;
+void *Application::data_=0;
 
 } // namespace Msp