}
if (diff < 0 || diff > last_access)
return wxInvalidOffset;
- SetIntPosition(diff);
+ size_t int_diff = (size_t)diff;
+ wxCHECK_MSG( (wxFileOffset)int_diff == diff, wxInvalidOffset, wxT("huge file not supported") );
+ SetIntPosition(int_diff);
return diff;
}
}
else
{
- SetIntPosition(diff);
+ size_t int_diff = (size_t)diff;
+ wxCHECK_MSG( (wxFileOffset)int_diff == diff, wxInvalidOffset, wxT("huge file not supported") );
+ SetIntPosition(int_diff);
return pos;
}
wxFileOffset wxStreamBuffer::Tell() const
{
- wxFileSize_t pos;
+ wxFileOffset pos;
// ask the stream for position if we have a real one
if ( m_stream )
{
}
+size_t wxStreamBase::GetSize() const
+{
+ wxFileOffset length = GetLength();
+ return length == wxInvalidOffset ? 0 : (size_t)length;
+}
+
wxFileOffset wxStreamBase::OnSysSeek(wxFileOffset WXUNUSED(seek), wxSeekMode WXUNUSED(mode))
{
return wxInvalidOffset;
return wxInvalidOffset;
}
+#if WXWIN_COMPATIBILITY_2_2
+
+wxStreamError wxStreamBase::LastError() const
+{
+ return m_lasterror;
+}
+
+size_t wxStreamBase::StreamSize() const
+{
+ return GetSize();
+}
+
+#endif // WXWIN_COMPATIBILITY_2_2
+
// ----------------------------------------------------------------------------
// wxInputStream
// ----------------------------------------------------------------------------
wxFileOffset wxInputStream::TellI() const
{
- wxFileSize_t pos = OnSysTell();
+ wxFileOffset pos = OnSysTell();
if (pos != wxInvalidOffset)
pos -= (m_wbacksize - m_wbackcur);
m_currentPos = 0;
}
-size_t wxCountingOutputStream::GetSize() const
+wxFileOffset wxCountingOutputStream::GetLength() const
{
return m_lastcount;
}
wxFileOffset wxCountingOutputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{
+ ssize_t new_pos = (ssize_t)pos;
+
switch ( mode )
{
case wxFromStart:
- m_currentPos = pos;
+ wxCHECK_MSG( (wxFileOffset)new_pos == pos, wxInvalidOffset, wxT("huge position not supported") );
break;
case wxFromEnd:
- m_currentPos = m_lastcount + pos;
+ new_pos = m_lastcount + new_pos;
+ wxCHECK_MSG( (wxFileOffset)new_pos == (wxFileOffset)(m_lastcount + pos), wxInvalidOffset, wxT("huge position not supported") );
break;
case wxFromCurrent:
- m_currentPos += pos;
+ new_pos = m_currentPos + new_pos;
+ wxCHECK_MSG( (wxFileOffset)new_pos == (wxFileOffset)(m_currentPos + pos), wxInvalidOffset, wxT("huge position not supported") );
break;
default:
return wxInvalidOffset;
}
+ m_currentPos = new_pos;
+
if (m_currentPos > m_lastcount)
m_lastcount = m_currentPos;
wxFileOffset wxBufferedInputStream::TellI() const
{
- wxFileSize_t pos = m_i_streambuf->Tell();
+ wxFileOffset pos = m_i_streambuf->Tell();
if (pos != wxInvalidOffset)
pos -= (m_wbacksize - m_wbackcur);
delete m_o_streambuf;
}
+bool wxBufferedOutputStream::Close()
+{
+ Sync();
+ return IsOk();
+}
+
+
wxOutputStream& wxBufferedOutputStream::Write(const void *buffer, size_t size)
{
m_lastcount = 0;
return m_parent_o_stream->TellO();
}
-size_t wxBufferedOutputStream::GetSize() const
+wxFileOffset wxBufferedOutputStream::GetLength() const
{
- return m_parent_o_stream->GetSize() + m_o_streambuf->GetIntPosition();
+ return m_parent_o_stream->GetLength() + m_o_streambuf->GetIntPosition();
}
void wxBufferedOutputStream::SetOutputStreamBuffer(wxStreamBuffer *buffer)