88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
/* Copyright 2019-2020 Canaan Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "model.h"
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#include <chrono>
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#include <memory>
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#include <optional>
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#include <xtl/xspan.hpp>
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namespace nncase
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{
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namespace runtime
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{
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class interpreter_base;
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typedef void (*run_callback_t)(void *userdata);
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typedef void (*error_callback_t)(const char *err, void *userdata);
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typedef void (*node_profile_callback_t)(runtime_opcode op, std::chrono::nanoseconds duration, void *userdata);
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typedef void (interpreter_base::*interpreter_step_t)();
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class interpreter_base
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{
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public:
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using clock_t = std::chrono::system_clock;
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bool try_load_model(const uint8_t *buffer);
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uint32_t model_size(const uint8_t *buffer);
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size_t inputs_size() const noexcept { return model_header_->inputs; }
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size_t outputs_size() const noexcept { return model_header_->outputs; }
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size_t nodes_size() const noexcept { return model_header_->nodes; }
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const runtime_shape_t &input_shape_at(size_t index) const noexcept { return input_shapes_.at(index); }
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const memory_range &input_at(size_t index) const noexcept { return inputs_[index]; }
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const memory_range &output_at(size_t index) const noexcept { return outputs_[index]; }
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template <class T>
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xtl::span<T> memory_at(const memory_range &range) const noexcept
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{
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auto span = memory_at(range);
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return { reinterpret_cast<T *>(span.data()), span.size() / sizeof(T) };
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}
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std::chrono::nanoseconds total_duration() const noexcept { return total_duration_; }
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void run(run_callback_t callback, error_callback_t on_error, node_profile_callback_t node_profile, void *userdata);
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protected:
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virtual bool initialize();
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virtual xtl::span<uint8_t> memory_at(const memory_range &range) const noexcept;
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virtual clock_t::time_point get_now() const noexcept;
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private:
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void step();
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private:
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const model_header *model_header_;
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std::unique_ptr<uint8_t[]> main_mem_;
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xtl::span<const memory_range> inputs_;
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xtl::span<const memory_range> outputs_;
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xtl::span<const runtime_shape_t> input_shapes_;
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xtl::span<const node_header> node_headers_;
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xtl::span<const uint8_t> constants_;
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const uint8_t *node_body_start_;
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error_callback_t on_error_;
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run_callback_t run_callback_;
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node_profile_callback_t node_profile_;
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void *userdata_;
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size_t cnt_node_;
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const uint8_t *cnt_node_body_;
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std::chrono::nanoseconds total_duration_;
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std::optional<clock_t::time_point> last_time_;
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runtime_opcode last_op_;
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};
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}
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}
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