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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/thread/thread.hpp> //yield
using namespace gras;
InputPortConfig::InputPortConfig(void)
{
item_size = 1;
reserve_items = 1;
maximum_items = 0;
inline_buffer = false;
preload_items = 0;
}
OutputPortConfig::OutputPortConfig(void)
{
item_size = 1;
reserve_items = 1;
maximum_items = 0;
}
Block::Block(void)
{
//NOP
}
Block::Block(const std::string &name):
Element(name)
{
(*this)->block.reset(new BlockActor());
(*this)->block->prio_token = Token::make();
(*this)->thread_pool = (*this)->block->thread_pool; //ref copy of pool
(*this)->block->name = name; //for debug purposes
//setup some state variables
(*this)->block->block_ptr = this;
(*this)->block->block_state = BlockActor::BLOCK_STATE_INIT;
//call block methods to init stuff
this->input_config(0) = InputPortConfig();
this->output_config(0) = OutputPortConfig();
this->set_interruptible_work(false);
this->set_buffer_affinity(-1);
}
Block::~Block(void)
{
//NOP
}
void ElementImpl::block_cleanup(void)
{
//wait for actor to chew through enqueued messages
while (this->block->GetNumQueuedMessages())
{
//TODO timeout if this does not stop
boost::this_thread::yield();
}
//delete the actor
this->block.reset();
//unref actor's framework
this->thread_pool.reset(); //must be deleted after actor
}
template <typename V>
const typename V::value_type &vector_get_const(const V &v, const size_t index)
{
if (v.size() <= index)
{
return v.back();
}
return v[index];
}
template <typename V>
typename V::value_type &vector_get_resize(V &v, const size_t index)
{
if (v.size() <= index)
{
if (v.empty()) v.resize(1);
v.resize(index+1, v.back());
}
return v[index];
}
InputPortConfig &Block::input_config(const size_t which_input)
{
return vector_get_resize((*this)->block->input_configs, which_input);
}
const InputPortConfig &Block::input_config(const size_t which_input) const
{
return vector_get_const((*this)->block->input_configs, which_input);
}
OutputPortConfig &Block::output_config(const size_t which_output)
{
return vector_get_resize((*this)->block->output_configs, which_output);
}
const OutputPortConfig &Block::output_config(const size_t which_output) const
{
return vector_get_const((*this)->block->output_configs, which_output);
}
void Block::commit_config(void)
{
for (size_t i = 0; i < (*this)->block->get_num_inputs(); i++)
{
InputUpdateMessage message;
message.index = i;
(*this)->block->Push(message, Theron::Address());
}
for (size_t i = 0; i < (*this)->block->get_num_outputs(); i++)
{
OutputUpdateMessage message;
message.index = i;
(*this)->block->Push(message, Theron::Address());
}
}
void Block::notify_active(void)
{
//NOP
}
void Block::notify_inactive(void)
{
//NOP
}
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;
}
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