blob: 4e7049583488cd96119d9610be0ec6b31d07659e [file] [log] [blame]
/**
* @author: Jeff Thompson
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_BINARYXMLSTRUCTUREDECODER_HPP
#define NDN_BINARYXMLSTRUCTUREDECODER_HPP
#include <stdexcept>
#include "../c/encoding/BinaryXMLStructureDecoder.h"
namespace ndn {
/**
* A BinaryXMLStructureDecoder wraps a C ndn_BinaryXMLStructureDecoder struct and related functions.
*/
class BinaryXMLStructureDecoder {
public:
BinaryXMLStructureDecoder()
{
ndn_BinaryXMLStructureDecoder_init(&structureDecoder_);
}
/**
* Continue scanning input starting from getOffset() to find the element end.
* If the end of the element which started at offset 0 is found, then return true and getOffset() is the length of
* the element. Otherwise return false, which means you should read more into input and call again.
* @param input the input buffer. You have to pass in input each time because the buffer could be reallocated.
* @param inputLength the number of bytes in input.
* @return true if found the element end, false if need to read more. (This is the same as returning gotElementEnd().)
*/
bool findElementEnd(unsigned char *input, unsigned int inputLength)
{
ndn_Error error;
if (error = ndn_BinaryXMLStructureDecoder_findElementEnd(&structureDecoder_, input, inputLength))
throw std::runtime_error(ndn_getErrorString(error));
return gotElementEnd();
}
unsigned int getOffset() const { return structureDecoder_.offset; }
bool gotElementEnd() const { return structureDecoder_.gotElementEnd != 0; }
private:
struct ndn_BinaryXMLStructureDecoder structureDecoder_;
};
}
#endif