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// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
#include <gras_impl/block_actor.hpp>
using namespace gras;
template <typename V, typename Sig>
void fill_item_sizes_from_sig(V &v, const Sig &s, const size_t size)
{
//default item size of 1 in case we cant set
v.resize(size, 1);
//empty signature? maybe it was a message port
if (s.empty()) return;
//fill v by copying signature (with back extend mode)
for (size_t i = 0; i < v.size(); i++) v[i] = s[i];
}
template <typename V, typename T>
void resize_fill_grow(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.resize(1);
resize_fill_grow(v, new_len, v.back());
}
void BlockActor::handle_topology(
const Apology::WorkerTopologyMessage &,
const Theron::Address from
){
MESSAGE_TRACER();
const size_t num_inputs = this->get_num_inputs();
const size_t num_outputs = this->get_num_outputs();
//call notify_topology on block before committing settings
this->block_ptr->notify_topology(num_inputs, num_outputs);
//fill the item sizes from the IO signatures
fill_item_sizes_from_sig(this->input_items_sizes, block_ptr->input_signature(), num_inputs);
fill_item_sizes_from_sig(this->output_items_sizes, block_ptr->output_signature(), num_outputs);
//resize and fill port properties
resize_fill_back(this->input_configs, num_inputs);
resize_fill_back(this->output_configs, num_outputs);
//resize the bytes consumed/produced
resize_fill_grow(this->stats.items_consumed, num_inputs, 0);
resize_fill_grow(this->stats.tags_consumed, num_inputs, 0);
resize_fill_grow(this->stats.items_produced, num_outputs, 0);
resize_fill_grow(this->stats.tags_produced, num_outputs, 0);
//resize all work buffers to match current connections
this->input_items.resize(num_inputs);
this->output_items.resize(num_outputs);
this->input_queues.resize(num_inputs);
this->output_queues.resize(num_outputs);
this->inputs_available.resize(num_inputs);
if (num_inputs == 0) this->inputs_available.resize(1, true); //so its always "available"
this->input_tokens.resize(num_inputs);
this->output_tokens.resize(num_outputs);
this->inputs_done.resize(num_inputs);
this->outputs_done.resize(num_outputs);
this->output_allocation_hints.resize(num_outputs);
//resize tags vector to match sizes
this->input_tags_changed.resize(num_inputs);
this->input_tags.resize(num_inputs);
//a block looses all connections, allow it to free
if (num_inputs == 0 and num_outputs == 0)
{
this->mark_done();
}
for (size_t i = 0; i < num_inputs; i++)
{
InputUpdateMessage message;
message.index = i;
this->handle_input_update(message, Theron::Address());
}
for (size_t i = 0; i < num_outputs; i++)
{
OutputUpdateMessage message;
message.index = i;
this->handle_output_update(message, Theron::Address());
}
this->Send(0, from); //ACK
}
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