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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 <string>
#include <iostream>
#include <sigc++/reference_wrapper.h>
#include <sigc++/functors/mem_fun.h>
#include <glibmm/thread.h>
#include <sigx/glib_auto_dispatchable.h>
#include <sigx/glib_threadable.h>
#include <sigx/request_f.h>
class string_wrapper
{
std::string m_str;
public:
string_wrapper(const char* s);
string_wrapper(const string_wrapper& other);
// implicit dtor is fine
const std::string& str() const
{
return m_str;
}
private:
// not implemented
string_wrapper& operator =(const string_wrapper& other);
};
class MyThread: public sigx::glib_threadable
{
public:
MyThread();
// async request
sigx::request_f<const string_wrapper&> do_sg_async;
// sync request
void do_sg_sync(const string_wrapper& s) const;
protected:
/// message handler for sync and async
void on_do_sg(const string_wrapper s) const;
};
using namespace std;
string_wrapper::string_wrapper(const char* s):
m_str(s)
{
cout << "ctor string_wrapper" << endl;
}
string_wrapper::string_wrapper(const string_wrapper& other):
m_str(other.m_str)
{
cout << "copy ctor string_wrapper" << endl;
}
MyThread::MyThread():
sigx::glib_threadable(),
// request api
// note: use *this instead of this because this leads to ambiguous overloads for mem_fun
do_sg_async(sigc::mem_fun(*this, &MyThread::on_do_sg))
{}
void MyThread::do_sg_sync(const string_wrapper& s) const
{
// note: use *this instead of this because this leads to ambigous overloads for mem_fun
sigx::open_sync_tunnel(sigc::mem_fun(*this, &MyThread::on_do_sg))(sigc::ref(s));
}
void MyThread::on_do_sg(const string_wrapper s) const
{
cout << "got message: " << s.str() << endl;
}
int main(int argc, char* argv[])
{
Glib::thread_init();
MyThread thethread;
thethread.run();
// message is copied only once when MyThread::on_do_sg() is called in the context of thethread
thethread.do_sg_sync("sync");
cout << endl;
// message is copied several times because it is stored inside the asynchronous tunnel_context before MyThread::on_do_sg() is called in the context of thethread
thethread.do_sg_async("async");
thethread.finish();
cin.get();
return 0;
}
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