pytorch/caffe2/serialize/in_memory_adapter.h
Han Qi (qihqi) fed12ff680 [BE][flatbuffer] Remove code duplications and refactor (#79184)
Summary:
Remove code dup in import.cpp / export_modules.cpp such that
1. Only one copy of switching logic (detect flatbuffer / is_flatbuffer);
2. Move detection of includeness of flatbuffer to runtime (so no more macros)

This also reverts the dependency of import.cpp -> flatbuffer_loader.cpp to flatbuffer_loader.cpp -> import.cpp.

Differential Revision: D36926217

Pull Request resolved: https://github.com/pytorch/pytorch/pull/79184
Approved by: https://github.com/zhxchen17
2022-06-20 16:37:38 +00:00

33 lines
644 B
C++

#pragma once
#include <cstring>
#include <caffe2/serialize/read_adapter_interface.h>
namespace caffe2 {
namespace serialize {
class MemoryReadAdapter final : public caffe2::serialize::ReadAdapterInterface {
public:
explicit MemoryReadAdapter(const void* data, off_t size)
: data_(data), size_(size) {}
size_t size() const override {
return size_;
}
size_t read(uint64_t pos, void* buf, size_t n, const char* what = "")
const override {
(void) what;
memcpy(buf, (int8_t*)(data_) + pos, n);
return n;
}
private:
const void* data_;
off_t size_;
};
} // namespace serialize
} // namespace caffe2