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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"
using namespace gnuradio;
void ElementImpl::handle_input_msg(const tsbe::TaskInterface &handle, const size_t index, const tsbe::Wax &msg)
{
if (msg.type() == typeid(Tag))
{
this->input_tags[index].push_back(msg.cast<Tag>());
this->input_tags_changed[index] = true;
}
if (msg.type() == typeid(Token))
{
this->token_pool.push_back(msg.cast<Token>());
}
if (msg.type() == typeid(CheckTokensMessage))
{
if (this->input_tokens[index].unique())
{
this->mark_done(handle);
}
}
}
void ElementImpl::handle_output_msg(const tsbe::TaskInterface &handle, const size_t index, const tsbe::Wax &msg)
{
if (msg.type() == typeid(Token))
{
this->token_pool.push_back(msg.cast<Token>());
}
if (msg.type() == typeid(CheckTokensMessage))
{
if (this->output_tokens[index].unique())
{
this->mark_done(handle);
}
}
}
template <typename V, typename T>
void resize_fill(V &v, const size_t new_len, const T &fill)
{
if (v.size() >= new_len) return; //dont ever shrink it
v.resize(new_len, fill);
}
template <typename V>
void resize_fill_back(V &v, const size_t new_len)
{
if (v.empty()) v.push_back(0);
resize_fill(v, new_len, v.back());
}
template <typename V, typename Sig>
void fill_item_sizes_from_sig(V &v, const Sig &s, const size_t size)
{
v.resize(size);
for (size_t i = 0; i < v.size(); i++)
{
v[i] = s->sizeof_stream_item(i);
}
}
void ElementImpl::topology_update(const tsbe::TaskInterface &task_iface, const tsbe::Wax &state)
{
const size_t num_inputs = task_iface.get_num_inputs();
const size_t num_outputs = task_iface.get_num_outputs();
//fill the item sizes from the IO signatures
fill_item_sizes_from_sig(this->input_items_sizes, this->input_signature, num_inputs);
fill_item_sizes_from_sig(this->output_items_sizes, this->output_signature, num_outputs);
//resize and fill port properties
resize_fill_back(this->input_history_items, num_inputs);
resize_fill_back(this->output_multiple_items, num_outputs);
//resize the bytes consumed/produced
resize_fill(this->items_consumed, num_inputs, 0);
resize_fill(this->items_produced, num_outputs, 0);
//resize all work buffers to match current connections
this->work_input_items.resize(num_inputs);
this->work_output_items.resize(num_outputs);
this->work_ninput_items.resize(num_inputs);
this->input_items.resize(num_inputs);
this->output_items.resize(num_outputs);
this->consume_items.resize(num_inputs, 0);
this->produce_items.resize(num_outputs, 0);
this->input_buff_offsets.resize(num_inputs, 0);
//resize tags vector to match sizes
this->input_tags_changed.resize(num_inputs);
this->input_tags.resize(num_inputs);
this->output_tags.resize(num_outputs);
//resize and clear that initial history
this->history_buffs.resize(num_inputs);
for (size_t i = 0; i < num_inputs; i++)
{
tsbe::Buffer &buff = this->history_buffs[i];
const size_t num_bytes = this->input_items_sizes[i]*this->input_history_items[i];
if (not buff or buff.get_length() != num_bytes)
{
tsbe::BufferConfig config;
config.memory = NULL;
config.length = num_bytes;
buff = tsbe::Buffer(config);
}
}
//allocate output tokens and send them downstream
if (state.cast<TopBlockMessage>().what == TopBlockMessage::ACTIVE)
{
this->input_tokens.resize(num_inputs);
for (size_t i = 0; i < num_inputs; i++)
{
this->input_tokens[i] = make_token();
task_iface.post_upstream(i, this->input_tokens[i]);
}
this->output_tokens.resize(num_outputs);
for (size_t i = 0; i < num_outputs; i++)
{
this->output_tokens[i] = make_token();
task_iface.post_downstream(i, this->output_tokens[i]);
}
}
if (state.cast<TopBlockMessage>().what == TopBlockMessage::ACTIVE)
{
this->active = true;
this->token = state.cast<TopBlockMessage>().token;
//causes initial processing kick-off for source blocks
this->handle_allocation(task_iface);
}
if (state.cast<TopBlockMessage>().what == TopBlockMessage::INERT)
{
this->active = false;
this->token = state.cast<TopBlockMessage>().token;
}
}
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