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// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
#include "element_impl.hpp"
#include <gras/block.hpp>
#include <boost/foreach.hpp>
using namespace gras;
InputPortConfig::InputPortConfig(void)
{
reserve_items = 1;
maximum_items = 0;
inline_buffer = false;
lookahead_items = 0;
}
OutputPortConfig::OutputPortConfig(void)
{
reserve_items = 1;
maximum_items = 0;
}
Block::Block(void)
{
//NOP
}
Block::Block(const std::string &name):
Element(name)
{
(*this)->block = boost::shared_ptr<BlockActor>(new BlockActor());
(*this)->thread_pool = (*this)->block->thread_pool; //ref copy of pool
(*this)->block->name = name; //for debug purposes
//setup some state variables
(*this)->block->topology_init = false;
(*this)->block->block_ptr = this;
(*this)->block->block_state = BlockActor::BLOCK_STATE_INIT;
//call block methods to init stuff
this->set_input_config(0, InputPortConfig());
this->set_output_config(0, OutputPortConfig());
this->set_interruptible_work(false);
this->set_buffer_affinity(-1);
}
template <typename V, typename T>
void vector_set(V &v, const T &t, const size_t index)
{
if (v.size() <= index)
{
v.resize(index+1, t);
}
v[index] = t;
}
template <typename V>
typename V::value_type vector_get(const V &v, const size_t index)
{
if (v.size() <= index)
{
return v.front();
}
return v[index];
}
InputPortConfig Block::get_input_config(const size_t which_input) const
{
return vector_get((*this)->block->input_configs, which_input);
}
void Block::set_input_config(const size_t which_input, const InputPortConfig &config)
{
vector_set((*this)->block->input_configs, config, which_input);
if ((*this)->block->topology_init)
(*this)->block->Push(UpdateInputsMessage(), Theron::Address());
}
OutputPortConfig Block::get_output_config(const size_t which_output) const
{
return vector_get((*this)->block->output_configs, which_output);
}
void Block::set_output_config(const size_t which_output, const OutputPortConfig &config)
{
vector_set((*this)->block->output_configs, config, which_output);
if ((*this)->block->topology_init)
(*this)->block->Push(UpdateInputsMessage(), Theron::Address());
}
void Block::consume(const size_t which_input, const size_t num_items)
{
ASSERT(long(num_items) >= 0); //sign bit set? you dont want a negative
(*this)->block->consume(which_input, num_items);
}
void Block::produce(const size_t which_output, const size_t num_items)
{
ASSERT(long(num_items) >= 0); //sign bit set? you dont want a negative
(*this)->block->produce(which_output, num_items);
}
void Block::consume(const size_t num_items)
{
const size_t num_inputs = (*this)->block->get_num_inputs();
for (size_t i = 0; i < num_inputs; i++)
{
(*this)->block->consume(i, num_items);
}
}
void Block::produce(const size_t num_items)
{
const size_t num_outputs = (*this)->block->get_num_outputs();
for (size_t o = 0; o < num_outputs; o++)
{
(*this)->block->produce(o, num_items);
}
}
item_index_t Block::get_consumed(const size_t which_input)
{
return (*this)->block->items_consumed[which_input];
}
item_index_t Block::get_produced(const size_t which_output)
{
return (*this)->block->items_produced[which_output];
}
void Block::post_output_tag(const size_t which_output, const Tag &tag)
{
(*this)->block->post_downstream(which_output, InputTagMessage(tag));
}
TagIter Block::get_input_tags(const size_t which_input)
{
const std::vector<Tag> &input_tags = (*this)->block->input_tags[which_input];
return TagIter(input_tags.begin(), input_tags.end());
}
void Block::erase_input_tags(const size_t which_input)
{
(*this)->block->input_tags[which_input].clear();
}
void Block::propagate_tags(const size_t i, const TagIter &iter)
{
const size_t num_outputs = (*this)->block->get_num_outputs();
for (size_t o = 0; o < num_outputs; o++)
{
BOOST_FOREACH(gras::Tag t, iter)
{
t.offset -= this->get_consumed(i);
t.offset += this->get_produced(o);
this->post_output_tag(o, t);
}
}
}
bool Block::start(void)
{
return true;
}
bool Block::stop(void)
{
return true;
}
void Block::notify_topology(const size_t, const size_t)
{
return;
}
void Block::set_buffer_affinity(const long affinity)
{
(*this)->block->buffer_affinity = affinity;
}
void Block::set_interruptible_work(const bool enb)
{
(*this)->block->interruptible_work = enb;
}
void Block::mark_output_fail(const size_t which_output)
{
(*this)->block->output_fail(which_output);
}
void Block::mark_input_fail(const size_t which_input)
{
(*this)->block->input_fail(which_input);
}
void Block::mark_done(void)
{
(*this)->block->mark_done();
}
const SBuffer &Block::get_input_buffer(const size_t which_input)
{
return (*this)->block->input_queues.front(which_input);
}
void Block::post_output_buffer(const size_t which_output, const SBuffer &buffer)
{
(*this)->block->produce_buffer(which_output, buffer);
}
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