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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/>.
#ifndef INCLUDED_LIBGRAS_ELEMENT_IMPL_HPP
#define INCLUDED_LIBGRAS_ELEMENT_IMPL_HPP
#include <gras_impl/debug.hpp>
#include <gras_impl/misc.hpp>
#include <gras_impl/vector_of_queues.hpp>
#include <gras_impl/input_buffer_queues.hpp>
#include <gras_impl/interruptible_thread.hpp>
#include <tsbe/block.hpp>
#include <tsbe/topology.hpp>
#include <tsbe/executor.hpp>
#include <gnuradio/element.hpp>
#include <gnuradio/block.hpp>
#include <gr_types.h>
#include <set>
#include <vector>
#include <queue>
namespace gnuradio
{
struct ElementImpl
{
//deconstructor stuff
~ElementImpl(void);
void top_block_cleanup(void);
void hier_block_cleanup(void);
//stuff for when its a block
std::string name;
long unique_id;
//per port properties
std::vector<size_t> input_items_sizes;
std::vector<size_t> output_items_sizes;
IOSignature input_signature;
IOSignature output_signature;
std::vector<size_t> input_history_items;
std::vector<size_t> output_multiple_items;
//keeps track of production
std::vector<uint64_t> items_consumed;
std::vector<uint64_t> items_produced;
//work buffers for the classic interface
size_t work_noutput_items;
std::vector<const void *> work_input_items;
std::vector<void *> work_output_items;
std::vector<int> work_ninput_items;
std::vector<int> fcast_ninput_items;
//work buffers for the new work interface
Block::InputItems input_items;
Block::OutputItems output_items;
ptrdiff_t work_io_ptr_mask;
//track work's calls to produce and consume
std::vector<size_t> produce_items;
std::vector<size_t> consume_items;
//track the subscriber counts
std::vector<Token> input_tokens;
std::vector<Token> output_tokens;
std::set<Token> token_pool;
std::vector<SBufferToken> output_buffer_tokens;
//buffer queues and ready conditions
InputBufferQueues input_queues;
VectorOfQueues<SBuffer> output_queues;
//tag tracking
std::vector<bool> input_tags_changed;
std::vector<std::vector<Tag> > input_tags;
Block::tag_propagation_policy_t tag_prop_policy;
//topological things
tsbe::Block block;
tsbe::Topology topology;
tsbe::Executor executor;
std::vector<boost::shared_ptr<Element> > children;
const tsbe::Element &get_elem(void) const
{
if (block) return block;
return topology;
}
//gets the handlers access for forecast and work
Block *block_ptr;
tsbe::TaskInterface work_task_iface; //only valid during work
//interruptible thread stuff
SharedThreadGroup thread_group;
boost::shared_ptr<InterruptibleThread> interruptible_thread;
//handlers
void handle_input_msg(const tsbe::TaskInterface &, const size_t, const tsbe::Wax &);
void handle_output_msg(const tsbe::TaskInterface &, const size_t, const tsbe::Wax &);
void topology_update(const tsbe::TaskInterface &);
void handle_block_msg(const tsbe::TaskInterface &, const tsbe::Wax &);
void handle_allocation(const tsbe::TaskInterface &);
void handle_task(const tsbe::TaskInterface &);
void mark_done(const tsbe::TaskInterface &);
void conclusion(const tsbe::TaskInterface &task_iface, const bool);
void buffer_returner(const size_t index, SBuffer &buffer);
//work helpers
int work_ret;
inline void task_work(void)
{
this->work_ret = block_ptr->Work(this->input_items, this->output_items);
}
//is the fg running?
enum
{
BLOCK_STATE_INIT,
BLOCK_STATE_LIVE,
BLOCK_STATE_DONE,
} block_state;
Token token;
size_t hint; //some kind of allocation hint
//rate settings
bool enable_fixed_rate;
double relative_rate;
bool forecast_fail;
bool forecast_enable;
};
} //namespace gnuradio
#endif /*INCLUDED_LIBGRAS_ELEMENT_IMPL_HPP*/
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