iobuf_reserve
if ((buf = iobuf_reserve(io, len)) == NULL)
if ((buf = iobuf_reserve(io, len)) == NULL)
void* iobuf_reserve(struct iobuf *, size_t);
if ((buf = iobuf_reserve(io, len)) == NULL)
if ((buf = iobuf_reserve(io, len)) == NULL)
void* iobuf_reserve(struct iobuf *, size_t);