Class InputArchive

• Defined in File input-archive.h

Class Documentation

class InputArchive

A recursive representation of tensors that can be deserialized from a file or stream.

In most cases, users should not have to interact with this class, and should instead use torch::load.

Public Functions

InputArchive()

Default-constructs the InputArchive.

InputArchive(InputArchive&&) = default

InputArchive &operator=(InputArchive&&) = default

InputArchive(InputArchive&) = delete

InputArchive &operator=(InputArchive&) = delete

~InputArchive() = default

void read(const std::string &key, c10::IValue &ivalue)

Reads an IValue associated with a given key.

bool try_read(const std::string &key, c10::IValue &ivalue)

Reads an IValue associated with a given key.

If there is no IValue associated with the key, this returns false, otherwise it returns true.

bool try_read(const std::string &key, Tensor &tensor, bool is_buffer = false)

Reads a tensor associated with a given key.

If there is no tensor associated with the key, this returns false, otherwise it returns true. If the tensor is expected to be a buffer (not differentiable), is_buffer must be true.

void read(const std::string &key, Tensor &tensor, bool is_buffer = false)

Reads a tensor associated with a given key.

If the tensor is expected to be a buffer (not differentiable), is_buffer must be true.

bool try_read(const std::string &key, InputArchive &archive)

Reads a InputArchive associated with a given key.

If there is no InputArchive associated with the key, this returns false, otherwise it returns true.

void read(const std::string &key, InputArchive &archive)

Reads an InputArchive associated with a given key.

The archive can thereafter be used for further deserialization of the nested data.

void load_from(const std::string &filename, std::optional<torch::Device> device = std::nullopt)

Loads the InputArchive from a serialized representation stored in the file at filename.

Storage are remapped using device option. If device is not specified, the module is loaded to the original device.

void load_from(std::istream &stream, std::optional<torch::Device> device = std::nullopt)

Loads the InputArchive from a serialized representation stored in the given stream.

Storage are remapped using device option. If device is not specified, the module is loaded to the original device.

void load_from(const char *data, size_t size, std::optional<torch::Device> device = std::nullopt)

void load_from(const std::function<size_t(uint64_t pos, void *buf, size_t nbytes)> &read_func, const std::function<size_t(void)> &size_func, std::optional<torch::Device> device = std::nullopt)

std::vector<std::string> keys()

template<typename ...Ts>
inline void operator()(Ts&&... ts)

Forwards all arguments to read().

Useful for generic code that can be re-used for both InputArchive and OutputArchive (where operator() forwards to write()).