mirror of https://github.com/alibaba/MNN.git
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
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//
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// CPURange.cpp
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// MNN
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//
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// Created by MNN on 2018/08/22.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "backend/cpu/CPURange.hpp"
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#include "backend/cpu/CPUBackend.hpp"
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#include "core/Macro.h"
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#include "core/FileLoader.hpp"
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namespace MNN {
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class CPUExternalConst : public Execution {
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public:
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CPUExternalConst(const Op* op, Backend* bn) : Execution(bn) {
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auto blob = op->main_as_Blob();
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mExternalFile = op->externalPath()->str();
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if (nullptr != blob->external()) {
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mOffset = blob->external()->data()[0];
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mSize = blob->external()->data()[1];
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}
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}
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virtual ErrorCode onExecute(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs) override {
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FileLoader l(mExternalFile.c_str());
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l.offset(mOffset);
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l.read(outputs[0]->host<char>(), mSize);
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return NO_ERROR;
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}
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private:
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std::string mExternalFile;
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int64_t mOffset = 0;
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int64_t mSize = 0;
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};
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class CPUExternalConstCreator : public CPUBackend::Creator {
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public:
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virtual Execution* onCreate(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
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const MNN::Op* op, Backend* backend) const {
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if (op->externalPath() == nullptr) {
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return nullptr;
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}
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return new CPUExternalConst(op, backend);
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}
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};
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REGISTER_CPU_OP_CREATOR(CPUExternalConstCreator, OpType_Const);
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REGISTER_CPU_OP_CREATOR(CPUExternalConstCreator, OpType_TrainableParam);
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} // namespace MNN
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