-/*
-This file is part of libmspframework
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
+#include <typeinfo>
#include <signal.h>
-#include <iostream>
+#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 {
-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::app_ = 0;
+Application::Starter *Application::starter_ = 0;
+void *Application::data_ = 0;
-Application::~Application()
+Application::Application():
+ exit_code(0)
{
- if(poller_)
- delete poller_;
- if(ev_mgr_)
- delete ev_mgr_;
+ if(app_)
+ throw logic_error("instance already exists");
}
-/**
-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)
+ if(!starter_)
{
- cerr<<"Trying to call Application::run_app twice!\n";
- return 125;
- }
- called=true;
-
- if(!reg_app_)
- {
- cerr<<"Trying to run with no application class registered!\n";
+ IO::cerr.write("Application::run called 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 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(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 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)
-{
- cerr<<"The programmer was lazy and didn't write a usage() function for this application.\n";
+ return 124;
+ }
}
-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.
-*/
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;
}
-/**
-Sets the specified signal to be delivered to the sighandler member function.
-*/
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;
}
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
projects / libs / core.git / blobdiff