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/*
* Copyright 2008 Klaus Triendl
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <iostream>
#include <sigc++/adaptors/lambda/base.h> // sigc::var
#include <sigc++/signal.h>
#include <glibmm/main.h>
#include <glibmm/thread.h>
#include <sigx/glib_auto_dispatchable.h>
#include <sigx/glib_threadable.h>
#include <sigx/signal_f.h>
#include <sigx/connection_wrapper.h>
using namespace std;
// fwd decl
class MainThread;
class MyThread: public sigx::glib_threadable
{
public:
MyThread();
protected:
// virtuals from sigx::threadable
virtual void on_startup();
private:
struct ThreadData;
Glib::Private<ThreadData> m_ThreadData;
// signal api
public:
// expose the 'nothing' signal
sigx::signal_f<sigc::signal<void> > signal_nothing;
};
struct MyThread::ThreadData
{
sigc::signal<void> m_sigNothing;
};
class MainThread: public sigx::glib_auto_dispatchable
{
public:
MainThread();
void run();
protected:
void on_self_ready();
void on_end_mainthread();
protected:
Glib::RefPtr<Glib::MainLoop> m_mainloop;
MyThread m_mythread;
sigx::connection_wrapper m_connMyThreadNothing;
};
using namespace std;
MyThread::MyThread():
sigx::glib_threadable(),
// initialize the signal api
signal_nothing(*this, m_ThreadData, &ThreadData::m_sigNothing)
{}
//virtual
void MyThread::on_startup()
{
m_ThreadData.set(new ThreadData);
}
MainThread::MainThread():
sigx::glib_auto_dispatchable(),
m_mainloop(),
m_mythread(),
m_connMyThreadNothing()
{}
void MainThread::run()
{
m_mainloop = Glib::MainLoop::create();
// one-shot idle handler
Glib::signal_idle().connect(
sigc::bind_return(
sigc::mem_fun(this, &MainThread::on_self_ready),
false
)
);
m_mainloop->run();
}
void MainThread::on_end_mainthread()
{
// disconnecting after restarting mythread shouldn't work (connection invalid) but yield no errors
m_connMyThreadNothing.disconnect();
// destroying after restarting mythread shouldn't (connection invalid) work but yield no errors
m_connMyThreadNothing = sigx::connection_wrapper();
m_mythread.finish();
m_mainloop->quit();
}
void do_nothing_dummy()
{}
void MainThread::on_self_ready()
{
// start mythread
m_mythread.run();
// connect to the thread's 'nothing' signal
m_connMyThreadNothing =
m_mythread.signal_nothing().connect(
sigx::open_tunnel_with(&do_nothing_dummy, *this)
);
// wait and test the connection status
m_connMyThreadNothing.connected();
// restart the thread
m_mythread.finish();
m_mythread.run();
// one-shot idle handler to
Glib::signal_idle().connect(
sigc::bind_return(
sigc::mem_fun(this, &MainThread::on_end_mainthread),
false
)
);
}
int main()
{
Glib::thread_init();
MainThread app;
app.run();
cout << "press <enter>.";
cin.get();
return 0;
}
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