binary-xml-decoder.h

#ifndef NDN_BINARYXMLDECODER_H
#define NDN_BINARYXMLDECODER_H

#include <ndn-cpp/c/common.h>
#include <ndn-cpp/c/errors.h>
#include "../util/blob.h"
#include "binary-xml.h"

#ifdef __cplusplus
extern "C" {
#endif

struct ndn_BinaryXmlDecoder {
  const uint8_t *input;
  size_t inputLength;
  size_t offset;
  // peekDTag sets and checks these, and readElementStartDTag uses them to avoid reading again.
  size_t previouslyPeekedDTagStartOffset;
  size_t previouslyPeekedDTagEndOffset;
  unsigned int previouslyPeekedDTag;
};

static __inline void ndn_BinaryXmlDecoder_initialize(struct ndn_BinaryXmlDecoder *self, const uint8_t *input, size_t inputLength)
{
  self->input = input;
  self->inputLength = inputLength;
  self->offset = 0;
  self->previouslyPeekedDTagStartOffset = (size_t)-1;
}

ndn_Error ndn_BinaryXmlDecoder_decodeTypeAndValue(struct ndn_BinaryXmlDecoder *self, unsigned int *type, unsigned int *value);

ndn_Error ndn_BinaryXmlDecoder_readElementStartDTag(struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag);

ndn_Error ndn_BinaryXmlDecoder_readElementClose(struct ndn_BinaryXmlDecoder *self);

ndn_Error ndn_BinaryXmlDecoder_peekDTag(struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, int *gotExpectedTag);

ndn_Error ndn_BinaryXmlDecoder_readBinaryDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, int allowNull, struct ndn_Blob *value);

ndn_Error ndn_BinaryXmlDecoder_readOptionalBinaryDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, int allowNull, struct ndn_Blob *value);

ndn_Error ndn_BinaryXmlDecoder_readUDataDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, struct ndn_Blob *value);

ndn_Error ndn_BinaryXmlDecoder_readOptionalUDataDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, struct ndn_Blob *value);

ndn_Error ndn_BinaryXmlDecoder_readUnsignedIntegerDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, unsigned int *value);

ndn_Error ndn_BinaryXmlDecoder_readOptionalUnsignedIntegerDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, int *value);

ndn_Error ndn_BinaryXmlDecoder_readTimeMillisecondsDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, double *milliseconds);

ndn_Error ndn_BinaryXmlDecoder_readOptionalTimeMillisecondsDTagElement
  (struct ndn_BinaryXmlDecoder *self, unsigned int expectedTag, double *milliseconds);

double ndn_BinaryXmlDecoder_unsignedBigEndianToDouble(const uint8_t *bytes, size_t bytesLength);

static __inline void ndn_BinaryXmlDecoder_seek(struct ndn_BinaryXmlDecoder *self, size_t offset)
{
  self->offset = offset;
}

#ifdef __cplusplus
}
#endif

#endif