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//
// Copyright 2012 Josh Blum
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with io_sig program. If not, see <http://www.gnu.org/licenses/>.
#include "element_impl.hpp"
#include <gras_impl/messages.hpp>
#include <boost/bind.hpp>
using namespace gnuradio;
//TODO will need more complicated later
void ElementImpl::buffer_returner(const size_t index, SBuffer &buffer)
{
//reset offset and length
buffer.offset = 0;
buffer.length = 0;
BufferReturnMessage message;
message.index = index;
message.buffer = buffer;
this->block.post_msg(message);
}
void ElementImpl::handle_allocation(const tsbe::TaskInterface &task_iface)
{
//allocate output buffers which will also wake up the task
const size_t num_outputs = task_iface.get_num_outputs();
this->output_buffer_tokens.resize(num_outputs);
for (size_t i = 0; i < num_outputs; i++)
{
size_t items = this->hint;
if (items == 0) items = 2048;
items = std::max(items, this->output_multiple_items[i]);
const size_t bytes = items * this->output_items_sizes[i];
SBufferDeleter deleter = boost::bind(&ElementImpl::buffer_returner, this, i, _1);
this->output_buffer_tokens[i] = SBufferToken(new SBufferDeleter(deleter));
for (size_t j = 0; j < 8; j++)
{
SBufferConfig config;
config.memory = NULL;
config.length = bytes;
config.token = this->output_buffer_tokens[i];
SBuffer buff(config);
//buffer derefs here and the token messages it back to the block
}
}
}
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