X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fcore%2Fapplication.cpp;h=d5745ed8a36ae2cbe139a14de0f1ba76c1b22d5c;hp=0e93a9c653064ec4aeccbd39d358a80e74fb7be9;hb=0f5501ad79950e9658fb672ac6b97a608e3a2dd9;hpb=521cf1db00f8ce2d9f9494dca503d6c17d89ac2f

diff --git a/source/core/application.cpp b/source/core/application.cpp
index 0e93a9c..d5745ed 100644
--- a/source/core/application.cpp
+++ b/source/core/application.cpp
@@ -1,175 +1,106 @@
-/* $Id$
-
-This file is part of libmspcore
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
+#include <typeinfo>
 #include <signal.h>
-#include <iostream>
-#include "../time/units.h"
-#include "../time/utils.h"
+#include <msp/debug/demangle.h>
+#include <msp/debug/errorreporter.h>
+#include <msp/io/print.h>
 #include "application.h"
-#include "error.h"
+#include "getopt.h"
 
 using namespace std;
 
 namespace Msp {
 
-/**
-Constructs an instance of the registered application class and runs it.  If the
-application throws a UsageError, the static usage() function is called.
+Application *Application::app_ = 0;
+Application::Starter *Application::starter_ = 0;
+void *Application::data_ = 0;
 
-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)
+Application::Application():
+	exit_code(0)
 {
-	static bool called=false;
-	if(called)
-	{
-		cerr<<"Trying to call Application::run_app twice!\n";
-		return 125;
-	}
-	called=true;
+	if(app_)
+		throw logic_error("instance already exists");
+}
 
-	if(!reg_app_)
+int Application::run(int argc, char **argv, void *data)
+{
+	if(!starter_)
 	{
-		cerr<<"Trying to run with no application class registered!\n";
+		IO::cerr.write("Application::run called with no RegisteredApplication class!\n");
 		return 126;
 	}
 
+	data_ = data;
+
 	try
 	{
-		app_=reg_app_->create_app(argc, argv);
+		try
+		{
+			app_ = starter_->create_app(argc, argv);
+		}
+		catch(const usage_error &e)
+		{
+			IO::print(IO::cerr, "%s\n%s\n", e.what(), e.help());
+			return 1;
+		}
+
+		int result = app_->main();
+		Application *a = app_;
+		app_ = 0;
+		delete a;
+		return result;
 	}
-	catch(const UsageError &e)
+	catch(const exception &e)
 	{
-		reg_app_->usage(e.what(), argv[0], e.get_brief());
-		return 1;
-	}
+		bool handled = false;
+		if(const Debug::ErrorReporter *er = Debug::ErrorReporter::get_current())
+			handled = er->report_uncaught_exception(e);
 
-	int result=app_->main();
-	delete app_;
-	return result;
-}
+		if(!handled)
+		{
+			IO::print(IO::cerr, "An uncaught exception occurred.\n");
+			IO::print(IO::cerr, "  type:   %s\n", Debug::demangle(typeid(e).name()));
+			IO::print(IO::cerr, "  what(): %s\n", e.what());
+		}
 
-/**
-Prints a message describing the usage of the application.  The default version
-will blame the programmer for being lazy.
+		delete app_;
+		app_ = 0;
 
-@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 *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";
+		return 124;
+	}
 }
 
-Application::Application():
-	exit_code(0),
-	loop_mode_(TICK_SLEEP)
-{ }
-
-/**
-Default main loop.  Behavior depends on loop_mode_.  A custom main loop should
-monitor the done member variable and return exit_code.
-*/
 int Application::main()
 {
-	if(loop_mode_==NONE)
-		return 0;
-
-	done=false;
+	done = false;
 	while(!done)
-	{
-		if(loop_mode_==SLEEP)
-		{
-			sleep_sem_.wait();
-			if(!done)
-				tick();
-		}
-		else if(loop_mode_==TICK_SLEEP)
-		{
-			tick();
-			Time::sleep(Time::msec);
-		}
-		else if(loop_mode_==TICK_YIELD)
-		{
-			tick();
-#ifdef WIN32
-			Sleep(0);
-#else
-			sched_yield();
-#endif
-		}
-	}
+		tick();
 
 	return exit_code;
 }
 
-/**
-Sets the specified signal to be delivered to the sighandler member function.
-*/
 void Application::catch_signal(int s)
 {
 	signal(s, &sighandler_);
 }
 
-/**
-Changes the main loop mode.
-*/
-void Application::set_loop_mode(LoopMode l)
-{
-	LoopMode old_mode=loop_mode_;
-	loop_mode_=l;
-	if(old_mode==SLEEP)
-		sleep_sem_.signal();
-}
-
-/**
-Causes the tick() function to be executed once if loop mode is SLEEP.  Has no
-effect with other loop modes.
-*/
-void Application::induce_tick()
-{
-	if(loop_mode_==SLEEP)
-		sleep_sem_.signal();
-}
-
-/**
-Causes the application to exit gracefully with the given exit code.
-*/
 void Application::exit(int c)
 {
-	done=true;
-	exit_code=c;
-	if(loop_mode_==SLEEP)
-		sleep_sem_.signal();
+	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 logic_error("Can't create more than one Starter instance");
 
-	reg_app_=this;
+	starter_ = this;
 }
 
-Application *Application::app_=0;
-Application::RegBase *Application::reg_app_=0;
-
 } // namespace Msp