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/* -*- c++ -*- */
/*
* Copyright 2015 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef RPCBUFFEREDGET_H
#define RPCBUFFEREDGET_H
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
#include <stdio.h>
template<typename TdataType>
class rpcbufferedget {
public:
rpcbufferedget(const unsigned int init_buffer_size = 4096) :
d_data_needed(false), d_data_ready(), d_buffer_lock(), d_buffer(init_buffer_size) {;}
~rpcbufferedget() {
d_data_ready.notify_all();
}
void offer_data(const TdataType& data) {
if (!d_data_needed)
return;
{
boost::mutex::scoped_lock lock(d_buffer_lock);
d_buffer = data;
d_data_needed = false;
}
d_data_ready.notify_one();
}
TdataType get() {
d_data_needed = true;
boost::mutex::scoped_lock lock(d_buffer_lock);
d_data_ready.wait(lock);
return d_buffer;
}
private:
bool d_data_needed;
boost::condition_variable d_data_ready;
boost::mutex d_buffer_lock;
TdataType d_buffer;
};
#endif
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