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update io::Device::read

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MihailRis 2025-02-04 16:55:43 +03:00
parent dceb5f6ee4
commit 3e67d887f4
5 changed files with 72 additions and 29 deletions
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8
src/io/devices/Device.hpp
View file

@ -1,6 +1,8 @@
#pragma once
#include <string>
#include <memory>
#include <iostream>
#include <filesystem>
#include "../path.hpp"
@ -13,7 +15,7 @@ namespace io {
virtual std::filesystem::path resolve(std::string_view path) = 0;
virtual void write(std::string_view path, const void* data, size_t size) = 0;
virtual void read(std::string_view path, void* data, size_t size) = 0;
virtual std::unique_ptr<std::istream> read(std::string_view path) = 0;
virtual size_t size(std::string_view path) = 0;
@ -43,8 +45,8 @@ namespace io {
parent->write((root / path).pathPart(), data, size);
}
void read(std::string_view path, void* data, size_t size) override {
parent->read((root / path).pathPart(), data, size);
std::unique_ptr<std::istream> read(std::string_view path) override {
return parent->read((root / path).pathPart());
}
size_t size(std::string_view path) override {

8
src/io/devices/StdfsDevice.cpp
View file

@ -35,13 +35,13 @@ void StdfsDevice::write(std::string_view path, const void* data, size_t size) {
output.write((const char*)data, size);
}
void StdfsDevice::read(std::string_view path, void* data, size_t size) {
std::unique_ptr<std::istream> StdfsDevice::read(std::string_view path) {
auto resolved = resolve(path);
std::ifstream input(resolved, std::ios::binary);
if (!input.is_open()) {
auto input = std::make_unique<std::ifstream>(resolved, std::ios::binary);
if (!*input) {
throw std::runtime_error("could not to open file " + resolved.u8string());
}
input.read((char*)data, size);
return input;
}
size_t StdfsDevice::size(std::string_view path) {

2
src/io/devices/StdfsDevice.hpp
View file

@ -7,7 +7,7 @@ namespace io {
std::filesystem::path resolve(std::string_view path) override;
void write(std::string_view path, const void* data, size_t size) override;
void read(std::string_view path, void* data, size_t size) override;
std::unique_ptr<std::istream> read(std::string_view path) override;
size_t size(std::string_view path) override;
bool exists(std::string_view path) override;
bool isdir(std::string_view path) override;