#define SPLICE_F_GIFT 8
ssize_t vmsplice(int, const struct iovec *, size_t, unsigned);
ssize_t splice(int, off_t *, int, off_t *, size_t, unsigned);
#define SPLICE_F_GIFT 8
ssize_t vmsplice(int, const struct iovec *, size_t, unsigned);
ssize_t splice(int, off_t *, int, off_t *, size_t, unsigned);