diff options
Diffstat (limited to 'iov.h')
| -rw-r--r-- | iov.h | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -36,7 +36,7 @@ size_t iov_size(const struct iovec *iov, const unsigned int iov_cnt); * such "large" value is -1 (sinice size_t is unsigned), * so specifying `-1' as `bytes' means 'up to the end of iovec'. */ -size_t iov_from_buf(struct iovec *iov, unsigned int iov_cnt, +size_t iov_from_buf(const struct iovec *iov, unsigned int iov_cnt, size_t offset, const void *buf, size_t bytes); size_t iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt, size_t offset, void *buf, size_t bytes); @@ -86,3 +86,12 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt, */ void iov_hexdump(const struct iovec *iov, const unsigned int iov_cnt, FILE *fp, const char *prefix, size_t limit); + +/* + * Partial copy of vector from iov to dst_iov (data is not copied). + * dst_iov overlaps iov at a specified offset. + * size of dst_iov is at most bytes. dst vector count is returned. + */ +unsigned iov_copy(struct iovec *dst_iov, unsigned int dst_iov_cnt, + const struct iovec *iov, unsigned int iov_cnt, + size_t offset, size_t bytes); |