/* $Id$
This file is part of libmspcore
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
+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 {
+Application::Application():
+ exit_code(0)
+{ }
+
/**
Constructs an instance of the registered application class and runs it. If the
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)
}
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;
}
- try
- {
- app_=reg_app_->create_app(argc, argv);
- }
- catch(const UsageError &e)
- {
- reg_app_->usage(e.what(), argv[0], e.get_brief());
- return 1;
- }
+ data_=data;
try
{
+ 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 exception &e)
{
+ 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: "<<typeid(e).name()<<'\n';
+ cerr<<" type: "<<Debug::demangle(typeid(e).name())<<'\n';
cerr<<" what(): "<<e.what()<<'\n';
- delete app_;
- throw;
+
+ 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
+
+ return 124;
}
}
cerr<<"The programmer was lazy and didn't write a usage() function for this application.\n";
}
-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.
+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()
{
- 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;
}
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;
}
/**
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