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#ifndef DISFLUID_HEADER_ITERATOR_INCLUDED
# define DISFLUID_HEADER_ITERATOR_INCLUDED

struct disfluid_header_iterator;

static inline
  int header_iterator_init_request (struct disfluid_header_iterator *iterator,
				    const struct disfluid_cache_request
				    *request);

static inline
  void header_iterator_clear (struct disfluid_header_iterator *iterator);

static inline
  const char *header_iterator_get_name (const struct disfluid_header_iterator
					*iterator);

static inline
  const char *header_iterator_get_value (const struct disfluid_header_iterator
					 *iterator);

static inline
  bool header_iterator_next (struct disfluid_header_iterator *iterator);

# include "disfluid-cache-request.h"

struct disfluid_header_iterator
{
  const struct disfluid_cache_request *request;
  size_t i;
};

static inline int
header_iterator_init (struct disfluid_header_iterator *iterator,
		      const struct disfluid_cache_request *request)
{
  iterator->request = request;
  iterator->i = 0;
}

static inline void
header_iterator_clear (struct disfluid_header_iterator *iterator)
{
  iterator->request = NULL;
}

/* Before iterating over the other headers, the request produces 1
   header: Host. */

static inline const char *
header_iterator_get_name (const struct disfluid_header_iterator *iterator)
{
  switch (iterator->i)
    {
    case 0:
      return "Host";
    default:
      return NULL;
    }
}

static inline const char *
header_iterator_get_value (const struct disfluid_header_iterator *iterator)
{
  switch (iterator->i)
    {
    case 0:
      return iterator->request->host;
    default:
      return NULL;
    }
}

static inline bool
header_iterator_next (struct disfluid_header_iterator *iterator)
{
  if (iterator->i < 1)
    {
      iterator->i += 1;
      return true;
    }
  return false;
}

#endif /* DISFLUID_HEADER_ITERATOR_INCLUDED */