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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 <gras_impl/block_actor.hpp>
#include <boost/make_shared.hpp>
#include <boost/bind.hpp>
using namespace gnuradio;
void BlockActor::handle_top_active(
const TopActiveMessage &,
const Theron::Address from
){
MESSAGE_TRACER();
if (this->block_state != BLOCK_STATE_LIVE)
{
this->block_ptr->start();
}
this->block_state = BLOCK_STATE_LIVE;
if (this->input_queues.all_ready() and this->output_queues.all_ready())
{
this->Push(SelfKickMessage(), Theron::Address());
}
this->Send(0, from); //ACK
}
void BlockActor::handle_top_inert(
const TopInertMessage &,
const Theron::Address from
){
MESSAGE_TRACER();
if (this->block_state != BLOCK_STATE_DONE)
{
this->block_ptr->stop();
}
this->mark_done();
this->Send(0, from); //ACK
}
void BlockActor::handle_top_token(
const TopTokenMessage &message,
const Theron::Address from
){
MESSAGE_TRACER();
//create input tokens and send allocation hints
for (size_t i = 0; i < this->get_num_inputs(); i++)
{
this->input_tokens[i] = Token::make();
InputTokenMessage token_msg;
token_msg.token = this->input_tokens[i];
this->post_upstream(i, token_msg);
//TODO, schedule this message as a pre-allocation message
//tell the upstream about the input requirements
OutputHintMessage output_hints;
output_hints.history_bytes = this->input_history_items[i]*this->input_items_sizes[i];
output_hints.reserve_bytes = this->input_multiple_items[i];
output_hints.token = this->input_tokens[i];
this->post_upstream(i, output_hints);
}
//create output token
for (size_t i = 0; i < this->get_num_outputs(); i++)
{
this->output_tokens[i] = Token::make();
OutputTokenMessage token_msg;
token_msg.token = this->output_tokens[i];
this->post_downstream(i, token_msg);
}
//store a token to the top level topology
this->token_pool.insert(message.token);
this->Send(0, from); //ACK
}
void BlockActor::handle_top_hint(
const TopHintMessage &message,
const Theron::Address from
){
MESSAGE_TRACER();
this->hint = message.hint;
this->Send(0, from); //ACK
}
void BlockActor::handle_top_thread_group(
const SharedThreadGroup &message,
const Theron::Address from
){
MESSAGE_TRACER();
//store the topology's thread group
//erase any potentially old lingering threads
//spawn a new thread if this block is a source
this->thread_group = message;
this->interruptible_thread.reset(); //erase old one
if (this->get_num_inputs() == 0) //its a source
{
this->interruptible_thread = boost::make_shared<InterruptibleThread>(
this->thread_group, boost::bind(&BlockActor::task_work, this)
);
}
this->Send(0, from); //ACK
}
void BlockActor::handle_self_kick(
const SelfKickMessage &,
const Theron::Address
){
MESSAGE_TRACER();
this->handle_task();
}
void BlockActor::handle_check_tokens(
const CheckTokensMessage &,
const Theron::Address
){
MESSAGE_TRACER();
if (this->input_queues.all_ready() and not this->forecast_fail)
{
this->handle_task();
}
else
{
this->mark_done();
}
}
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