Template
70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#include "file-stream.h"
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#include "core-library/io/io-helper.h"
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#include <system_error>
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core::file_stream::~file_stream()
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{
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close();
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}
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core::file_stream::file_stream(file_stream&& other) noexcept
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: m_file_handle(std::exchange(other.m_file_handle, nullptr))
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{
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}
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core::file_stream& core::file_stream::operator=(file_stream&& other)
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{
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if (this != &other)
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{
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core::close_file(m_file_handle);
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m_file_handle = std::exchange(other.m_file_handle, nullptr);
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}
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return *this;
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}
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core::file_stream core::file_stream::open_for_reading(const std::filesystem::path& file_path)
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{
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file_stream stream{};
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stream.m_file_handle = core::open_file(file_path.string().c_str(), "rb");
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return stream;
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}
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std::string core::file_stream::file_contents_as_string(const std::filesystem::path& file_path)
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{
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file_stream stream = open_for_reading(file_path);
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return stream.read_all_as_string();
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}
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std::string core::file_stream::read_all_as_string()
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{
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if (!m_file_handle)
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return {};
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core::seek_file_to_end(m_file_handle);
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const std::size_t file_size = static_cast<std::size_t>(core::get_file_offset(m_file_handle));
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core::seek_file_to_beginning(m_file_handle);
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if (file_size == 0)
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return {};
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std::string result(file_size, '\0');
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core::read_from_file(&result[0], 1, file_size, m_file_handle);
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return result;
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}
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void core::file_stream::close()
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{
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if (m_file_handle)
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{
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if (int result = std::fclose(m_file_handle); result != 0)
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throw std::system_error(std::error_code{result, std::system_category()});
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m_file_handle = nullptr;
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}
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}
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