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#pragma once

#include "shm_manager.h"

namespace triton { namespace backend { namespace python {

struct StringShm {

bi::managed_external_buffer::handle_t data;

size_t length;

};

class PbString {

public:

static std::unique_ptr<PbString> Create(

std::unique_ptr<SharedMemoryManager>& shm_pool,

const std::string& string);

static std::unique_ptr<PbString> Create(

const std::string& string, char* data_shm,

bi::managed_external_buffer::handle_t handle);

static std::unique_ptr<PbString> LoadFromSharedMemory(

std::unique_ptr<SharedMemoryManager>& shm_pool,

bi::managed_external_buffer::handle_t handle);

static std::unique_ptr<PbString> LoadFromSharedMemory(

bi::managed_external_buffer::handle_t handle, char* data_shm);

static std::size_t ShmStructSize(const std::string& string);

char* MutableString() { return string_shm_ptr_; }

std::string String()

{

return std::string(

string_shm_ptr_, string_shm_ptr_ + string_container_shm_ptr_->length);

}

bi::managed_external_buffer::handle_t ShmHandle();

std::size_t Size();

private:

AllocatedSharedMemory<StringShm> string_container_shm_;

StringShm* string_container_shm_ptr_;

AllocatedSharedMemory<char> string_shm_;

char* string_shm_ptr_;

bi::managed_external_buffer::handle_t string_handle_;

PbString(

AllocatedSharedMemory<StringShm>& string_container_shm,

AllocatedSharedMemory<char>& string_shm);

PbString(

StringShm* string_container_shm, char* string_shm,

bi::managed_external_buffer::handle_t handle);

};

}}} // namespace triton::backend::python