Move most platform-specific code into overlay directories

[libs/core.git] / source / core / application.h

diff --git a/source/core/application.h b/source/core/application.h
index bd433aafcc3fb16dfd0e0d1bc51c435f6bf5adab..7dfea8a0ad13abaa05d3102ace97a0962e957fd4 100644 (file)
--- a/source/core/application.h
+++ b/source/core/application.h
@@ -1,80 +1,81 @@
-/* $Id$
-
-This file is part of libmspcore
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
 #ifndef MSP_CORE_APPLICATION_H_
 #define MSP_CORE_APPLICATION_H_
 
-#include "semaphore.h"
+#include <stdexcept>
 
 namespace Msp {
 
 /**
-Base class for applications.  Inherit the main class from this and add a static
-member of type RegApp<MainClass>.
+Base class for applications.  See also RegisteredApplication.
 */
 class Application
 {
-public:
-       virtual ~Application() { }
-
-       static int run(int, char **);
-       static void usage(const char *, const char *, bool);
 protected:
-       enum LoopMode
+       class Starter
        {
-               NONE,       /// No main loop - main() will just return
-               SLEEP,      /// Only sleep in the main loop - useful for servers
-               TICK_SLEEP, /// Call tick every iteration, with a short sleep in between
-               TICK_YIELD, /// Call tick every iteration, with sched_yield in between
-               TICK_BUSY   /// Call tick every iteration
-       };
-
-       class RegBase
-       {
-       public:
-               virtual Application *create_app(int, char **)=0;
-               virtual void usage(const char *, const char *, bool)=0;
-               virtual ~RegBase() { }
        protected:
-               RegBase();
-       };
-
-       template<typename T>
-       class RegApp: public RegBase
-       {
+               Starter();
        public:
-               Application *create_app(int argc, char **argv) { return new T(argc, argv); }
-               void usage(const char *r, const char *a, bool b) { T::usage(r, a, b); }
+               virtual ~Starter() { }
+
+               virtual Application *create_app(int, char **) = 0;
        };
 
        bool done;
-       int  exit_code;
+       int exit_code;
+
+private:
+       static Starter *starter_;
+       static Application *app_;
+       static void *data_;
 
+       Application(const Application &);
+       Application &operator=(const Application &);
+protected:
        Application();
+public:
+       virtual ~Application() { }
+
+       static int run(int, char **, void * =0);
+       static void *get_data() { return data_; }
+
+protected:
        virtual int main();
        void catch_signal(int);
-       void set_loop_mode(LoopMode);
-       void induce_tick();
        void exit(int);
        virtual void tick() { }
        virtual void sighandler(int) { }
 private:
-       LoopMode     loop_mode_;
-       Semaphore    sleep_sem_;
+       static void sighandler_(int);
 
-       Application(const Application &);
-       Application &operator=(const Application &);
+       static void display_exception(const std::exception &);
+};
 
-       static RegBase     *reg_app_;
-       static Application *app_;
 
-       static void sighandler_(int);
-       static void sigalrm_(int) { }
+/**
+Registers the class to be used for program startup.  The main application class
+should be derived from this.
+*/
+template<typename T>
+class RegisteredApplication: public Application
+{
+private:
+       class Starter: public Application::Starter
+       {
+       public:
+               Application *create_app(int argc, char **argv) { return new T(argc, argv); }
+       };
+
+       static Starter starter_;
+
+protected:
+       // Force the starter into existence
+       RegisteredApplication() { (void)starter_; }
 };
 
+template<typename T>
+typename RegisteredApplication<T>::Starter RegisteredApplication<T>::starter_;
+
 } // namespace Msp
 
 #endif