basicio: use fs::path

Allows removing manual UTF8 handling.

Signed-off-by: Rosen Penev <[email protected]>

Author: neheb

src/basicio.cpp

@@ -67,19 +67,13 @@ void BasicIo::seekOrThrow(int64_t offset, Position pos, ErrorCode err) {
 class FileIo::Impl {
  public:
   //! Constructor
-  explicit Impl(std::string path);
-#ifdef _WIN32
-  explicit Impl(std::wstring path);
-#endif
+  explicit Impl(fs::path path);
   ~Impl() = default;
   // Enumerations
   //! Mode of operation
   enum OpMode { opRead, opWrite, opSeek };
   // DATA
-  std::string path_;  //!< (Standard) path
-#ifdef _WIN32
-  std::wstring wpath_;  //!< UCS2 path
-#endif
+  fs::path path_;          //!< (Standard) path
   std::string openMode_;   //!< File open mode
   FILE* fp_{};             //!< File stream pointer
   OpMode opMode_{opSeek};  //!< File open mode
@@ -113,21 +107,8 @@ class FileIo::Impl {
   Impl& operator=(const Impl&) = delete;  //!< Assignment
 };
 
-FileIo::Impl::Impl(std::string path) : path_(std::move(path)) {
-#ifdef _WIN32
-  wchar_t t[512];
-  const auto nw = MultiByteToWideChar(CP_UTF8, 0, path_.data(), static_cast<int>(path_.size()), t, 512);
-  wpath_.assign(t, nw);
-#endif
-}
-#ifdef _WIN32
-FileIo::Impl::Impl(std::wstring path) : wpath_(std::move(path)) {
-  char t[1024];
-  const auto nc =
-      WideCharToMultiByte(CP_UTF8, 0, wpath_.data(), static_cast<int>(wpath_.size()), t, 1024, nullptr, nullptr);
-  path_.assign(t, nc);
+FileIo::Impl::Impl(fs::path path) : path_(std::move(path)) {
 }
-#endif
 
 int FileIo::Impl::switchMode(OpMode opMode) {
   if (opMode_ == opMode)
@@ -177,7 +158,7 @@ int FileIo::Impl::switchMode(OpMode opMode) {
   openMode_ = "r+b";
   opMode_ = opSeek;
 #ifdef _WIN32
-  if (_wfopen_s(&fp_, wpath_.c_str(), L"r+b"))
+  if (_wfopen_s(&fp_, path_.c_str(), L"r+b"))
     return 1;
   return _fseeki64(fp_, offset, SEEK_SET);
 #else
@@ -189,11 +170,7 @@ int FileIo::Impl::switchMode(OpMode opMode) {
 }  // FileIo::Impl::switchMode
 
 int FileIo::Impl::stat(StructStat& buf) const {
-#ifdef _WIN32
-  const auto& file = wpath_;
-#else
   const auto& file = path_;
-#endif
   try {
     buf.st_size = fs::file_size(file);
     buf.st_mode = fs::status(file).permissions();
@@ -320,21 +297,12 @@ byte* FileIo::mmap(bool isWriteable) {
 void FileIo::setPath(const std::string& path) {
   close();
   p_->path_ = path;
-#ifdef _WIN32
-  wchar_t t[512];
-  const auto nw = MultiByteToWideChar(CP_UTF8, 0, p_->path_.data(), static_cast<int>(p_->path_.size()), t, 512);
-  p_->wpath_.assign(t, nw);
-#endif
 }
 
 #ifdef _WIN32
 void FileIo::setPath(const std::wstring& path) {
   close();
-  p_->wpath_ = path;
-  char t[1024];
-  const auto nc = WideCharToMultiByte(CP_UTF8, 0, p_->wpath_.data(), static_cast<int>(p_->wpath_.size()), t, 1024,
-                                      nullptr, nullptr);
-  p_->path_.assign(t, nc);
+  p_->path_ = path;
 }
 #endif
 
@@ -523,7 +491,7 @@ int FileIo::open(const std::string& mode) {
 #ifdef _WIN32
   wchar_t wmode[10];
   MultiByteToWideChar(CP_UTF8, 0, mode.c_str(), -1, wmode, 10);
-  if (_wfopen_s(&p_->fp_, p_->wpath_.c_str(), wmode))
+  if (_wfopen_s(&p_->fp_, p_->path_.c_str(), wmode))
     return 1;
 #else
   p_->fp_ = ::fopen(path().c_str(), mode.c_str());
@@ -583,7 +551,9 @@ bool FileIo::eof() const {
 }
 
 const std::string& FileIo::path() const noexcept {
-  return p_->path_;
+  static thread_local std::string p;
+  p = p_->path_.string();
+  return p;
 }
 
 void FileIo::populateFakeData() {
@@ -870,7 +840,7 @@ bool MemIo::eof() const {
 }
 
 const std::string& MemIo::path() const noexcept {
-  static std::string _path{"MemIo"};
+  static const std::string _path{"MemIo"};
   return _path;
 }