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/* -*- c++ -*- */
/*
* Copyright 2015 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef RPCBUFFEREDGET_H
#define RPCBUFFEREDGET_H
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
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()
{
boost::mutex::scoped_lock lock(d_buffer_lock);
d_data_needed = true;
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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