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Refectored the FileStream constructor.

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This commit is contained in:
Tsuda Kageyu 2012-09-03 01:45:28 +09:00
parent d16c24ae21
commit df12b4ffc6
1 changed files with 51 additions and 68 deletions
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119
taglib/toolkit/tfilestream.cpp
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@ -65,6 +65,51 @@ struct FileNameHandle : public std::string
#endif
namespace {
FILE *openFile(const FileName &path, bool readOnly)
{
// Calls a proper variation of fopen() depending on the compiling environment.
#if defined(_WIN32)
# if defined(_MSC_VER) && (_MSC_VER >= 1400)
// Visual C++ 2005 or later.
FILE *file;
errno_t err;
if(wcslen(path) > 0)
err = _wfopen_s(&file, path, readOnly ? L"rb" : L"rb+");
else
err = fopen_s(&file, path, readOnly ? "rb" : "rb+");
if(err == 0)
return file;
else
return NULL;
# else // defined(_MSC_VER) && (_MSC_VER >= 1400)
// Visual C++.NET 2003 or earlier.
if(wcslen(path) > 0)
return _wfopen(path, readOnly ? L"rb" : L"rb+");
else
return fopen(path, readOnly ? "rb" : "rb+");
# endif // defined(_MSC_VER) && (_MSC_VER >= 1400)
#else // defined(_WIN32)
// Non-Win32
return fopen(path, readOnly ? "rb" : "rb+");
#endif // defined(_WIN32)
}
}
class FileStream::FileStreamPrivate
{
public:
@ -87,79 +132,17 @@ FileStream::FileStreamPrivate::FileStreamPrivate(FileName fileName, bool openRea
{
// First try with read / write mode, if that fails, fall back to read only.
#if defined(_MSC_VER) && (_MSC_VER >= 1400) // VC++2005 or later
if(!openReadOnly)
file = openFile(name, false);
errno_t err;
if(wcslen((const wchar_t *) fileName) > 0) {
if(openReadOnly)
err = _wfopen_s(&file, name, L"rb");
else {
err = _wfopen_s(&file, name, L"rb+");
if(err == 0)
readOnly = false;
else
err = _wfopen_s(&file, name, L"rb");
}
if(err == 0)
return;
}
if(openReadOnly)
err = fopen_s(&file, name, "rb");
else {
err = fopen_s(&file, name, "rb+");
if(err == 0)
readOnly = false;
else
err = fopen_s(&file, name, "rb");
}
if(err != 0) {
debug("Could not open file " + String((const char *) name));
}
#else // defined(_MSC_VER) && (_MSC_VER >= 1400)
# ifdef _WIN32
if(wcslen((const wchar_t *) fileName) > 0) {
if(openReadOnly)
file = _wfopen(name, L"rb");
else {
file = _wfopen(name, L"rb+");
if(file)
readOnly = false;
else
file = _wfopen(name, L"rb");
}
if(file)
return;
}
# endif // defined(_WIN32)
if(openReadOnly)
file = fopen(name, "rb");
else {
file = fopen(name, "rb+");
if(file)
readOnly = false;
else
file = fopen(name, "rb");
}
if(file)
readOnly = false;
else
file = openFile(name, true);
if(!file) {
debug("Could not open file " + String((const char *) name));
}
#endif // defined(_MSC_VER) && (_MSC_VER >= 1400)
}
////////////////////////////////////////////////////////////////////////////////