void FileStream::ensureWrite_slow(const void* vbuf, size_t length) {
assert(m_fp);
size_t n = ::fwrite(vbuf, 1, length, m_fp);
if (n != length) {
throw OutOfSpaceException(BOOST_CURRENT_FUNCTION);
}
}
void throw_OutOfSpace(const char* func, size_t want, size_t available)
{
std::ostringstream oss;
oss << "in " << func << ", want=" << want
<< ", available=" << available
// << ", tell=" << tell() << ", size=" << size()
;
throw OutOfSpaceException(oss.str().c_str());
}
void FileStream::writeByte_slow(byte b)
{
assert(m_fp);
#ifdef __USE_MISC
if (EOF == fputc_unlocked(b, m_fp))
#else
if (EOF == fputc(b, m_fp))
#endif
throw OutOfSpaceException(BOOST_CURRENT_FUNCTION);
}
void DataIO_saveObject(Output& output, const CString& x)
{
var_size_t size(x.GetLength());
output << size;
uint32_t size2 = output.write(static_cast<LPCTSTR>(x), size.t);
if (size2 != size.t)
{
throw OutOfSpaceException("when save CString");
}
}
bool FileStream::copyFile(const char* srcPath, const char* dstPath)
{
FileStream fsrc(srcPath, "rb");
FileStream fdst(dstPath, "wb+");
if (fsrc && fdst)
{
setvbuf(fsrc.fp(), NULL, _IONBF, 0);
setvbuf(fdst.fp(), NULL, _IONBF, 0);
size_t nbuf = 64 * 1024;
AutoFree<char> pbuf(nbuf);
while (!fsrc.eof())
{
size_t nRead = fsrc.read(pbuf, nbuf);
size_t nWrite = fdst.write(pbuf, nRead);
if (nWrite != nRead) {
throw OutOfSpaceException(BOOST_CURRENT_FUNCTION);
}
}
return true;
}
return false;
}