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// file : cult/dr/xdr/input-stream.cxx
// author : Boris Kolpackov <boris@kolpackov.net>
// copyright : Copyright (c) 2005-2010 Boris Kolpackov
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <cult/dr/xdr/input-stream.hxx>
namespace Cult
{
namespace DR
{
namespace XDR
{
InputStream::
InputStream (Shptr<Buffer> buffer)
: buffer_ (buffer)
{
xdrmem_create (&xdr_, buffer_->data (), buffer_->size (), XDR_DECODE);
}
InputStream::
~InputStream ()
{
xdr_destroy (&xdr_);
}
InputStream& InputStream::
operator>> (Boolean& v)
{
bool_t b;
if (!xdr_bool (&xdr_, &b))
throw Extraction ();
v = b;
return *this;
}
InputStream& InputStream::
operator>> (Int8& v)
{
if (!xdr_int8_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (UnsignedInt8& v)
{
if (!xdr_uint8_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (Int16& v)
{
if (!xdr_int16_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (UnsignedInt16& v)
{
if (!xdr_uint16_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (Int32& v)
{
if (!xdr_int32_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (UnsignedInt32& v)
{
if (!xdr_uint32_t (&xdr_, &v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (Int64& v)
{
if (!xdr_int64_t (&xdr_, (int64_t*)&v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (UnsignedInt64& v)
{
if (!xdr_uint64_t (&xdr_, (uint64_t*)&v))
throw Extraction ();
return *this;
}
InputStream& InputStream::
operator>> (String& v)
{
UnsignedInt32 size;
if (!xdr_uint32_t (&xdr_, &size))
throw Extraction ();
// I dare to change the guts!
//
v.resize (size);
Char* p (const_cast<Char*> (v.data ()));
if (!xdr_opaque (&xdr_, p, size))
throw Extraction ();
return *this;
}
Void InputStream::
read (Buffer& buffer, Size size)
{
Size new_size (buffer.position () + size);
buffer.capacity (new_size);
if (!xdr_opaque (&xdr_, buffer.data () + buffer.position (), size))
throw Extraction ();
buffer.size (new_size);
}
Boolean InputStream::
eos () const
{
return xdr_getpos (&xdr_) >= buffer_->size ();
}
}
}
}
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