forked from dolphin-emu/dolphin
134 lines
2.2 KiB
C++
134 lines
2.2 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <cstddef>
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#include <cstdio>
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#include <string>
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#ifdef _WIN32
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#include <io.h>
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#include "Common/CommonFuncs.h"
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#include "Common/StringUtil.h"
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#else
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#include <unistd.h>
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#endif
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#include "Common/CommonTypes.h"
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#include "Common/File.h"
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#include "Common/FileUtil.h"
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namespace File
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{
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IOFile::IOFile() : m_file(nullptr), m_good(true)
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{
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}
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IOFile::IOFile(std::FILE* file) : m_file(file), m_good(true)
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{
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}
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IOFile::IOFile(const std::string& filename, const char openmode[]) : m_file(nullptr), m_good(true)
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{
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Open(filename, openmode);
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}
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IOFile::~IOFile()
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{
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Close();
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}
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IOFile::IOFile(IOFile&& other) noexcept : m_file(nullptr), m_good(true)
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{
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Swap(other);
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}
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IOFile& IOFile::operator=(IOFile&& other) noexcept
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{
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Swap(other);
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return *this;
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}
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void IOFile::Swap(IOFile& other) noexcept
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{
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std::swap(m_file, other.m_file);
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std::swap(m_good, other.m_good);
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}
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bool IOFile::Open(const std::string& filename, const char openmode[])
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{
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Close();
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#ifdef _WIN32
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m_good = _tfopen_s(&m_file, UTF8ToTStr(filename).c_str(), UTF8ToTStr(openmode).c_str()) == 0;
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#else
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m_file = std::fopen(filename.c_str(), openmode);
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m_good = m_file != nullptr;
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#endif
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return m_good;
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}
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bool IOFile::Close()
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{
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if (!IsOpen() || 0 != std::fclose(m_file))
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m_good = false;
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m_file = nullptr;
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return m_good;
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}
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void IOFile::SetHandle(std::FILE* file)
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{
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Close();
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Clear();
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m_file = file;
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}
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u64 IOFile::GetSize() const
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{
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if (IsOpen())
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return File::GetSize(m_file);
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else
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return 0;
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}
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bool IOFile::Seek(s64 off, int origin)
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{
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if (!IsOpen() || 0 != fseeko(m_file, off, origin))
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m_good = false;
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return m_good;
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}
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u64 IOFile::Tell() const
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{
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if (IsOpen())
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return ftello(m_file);
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else
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return UINT64_MAX;
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}
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bool IOFile::Flush()
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{
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if (!IsOpen() || 0 != std::fflush(m_file))
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m_good = false;
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return m_good;
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}
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bool IOFile::Resize(u64 size)
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{
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#ifdef _WIN32
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if (!IsOpen() || 0 != _chsize_s(_fileno(m_file), size))
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#else
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// TODO: handle 64bit and growing
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if (!IsOpen() || 0 != ftruncate(fileno(m_file), size))
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#endif
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m_good = false;
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return m_good;
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}
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} // namespace File
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