iovec.h

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#ifndef IOVEC_H
#define IOVEC_H

struct iovec_t {
  void* buf;                    
  size_t size;                  
};

inline size_t iovec_size(const iovec_t* vec) __attribute__((always_inline));
inline size_t iovec_size(const iovec_t* vec)
{
  size_t len = 0;
  for (const iovec_t* vp = vec; vp->buf != NULL; vp++)
    len += vp->size;
  return (len);
}

inline void iovec_arg(iovec_t* &vp, const void* buf, size_t size)
  __attribute__((always_inline));
inline void iovec_arg(iovec_t* &vp, const void* buf, size_t size)
{
  vp->buf = (void*) buf;
  vp->size = size;
  vp++;
}

inline void iovec_end(iovec_t* &vp) __attribute__((always_inline));
inline void iovec_end(iovec_t* &vp)
{
  vp->buf = 0;
  vp->size = 0;
}
#endif