ssize_t eRawFile::read(off_t offset, void *buf, size_t count)
{
eSingleLocker l(m_lock);
if (offset != m_current_offset)
{
m_current_offset = lseek_internal(offset);
if (m_current_offset < 0)
return m_current_offset;
}
switchOffset(m_current_offset);
if (m_nrfiles >= 2)
{
if (m_current_offset + count > m_totallength)
count = m_totallength - m_current_offset;
if (count < 0)
return 0;
}
int ret;
ret = ::read(m_fd, buf, count);
if (ret > 0)
{
m_current_offset = m_last_offset += ret;
}
return ret;
}
ssize_t eRawFile::read(void *buf, size_t count)
{
// eDebug("read: %p, %d", buf, count);
switchOffset(m_current_offset);
if (m_nrfiles >= 2)
{
if (m_current_offset + count > m_totallength)
count = m_totallength - m_current_offset;
if (count < 0)
return 0;
}
int ret;
if (!m_cached)
ret = ::read(m_fd, buf, count);
else
ret = ::fread(buf, 1, count, m_file);
if (ret > 0)
m_current_offset = m_last_offset += ret;
return ret;
}
