diff options
Diffstat (limited to 'include/qemu/iov.h')
| -rw-r--r-- | include/qemu/iov.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/qemu/iov.h b/include/qemu/iov.h index 44f9db5cee..9535673c13 100644 --- a/include/qemu/iov.h +++ b/include/qemu/iov.h @@ -31,7 +31,7 @@ size_t iov_size(const struct iovec *iov, const unsigned int iov_cnt); * only part of data will be copied, up to the end of the iovec. * Number of bytes actually copied will be returned, which is * min(bytes, iov_size(iov)-offset) - * `Offset' must point to the inside of iovec. + * Returns 0 when `offset' points to the outside of iovec. */ size_t iov_from_buf_full(const struct iovec *iov, unsigned int iov_cnt, size_t offset, const void *buf, size_t bytes); @@ -67,11 +67,12 @@ iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt, /** * Set data bytes pointed out by iovec `iov' of size `iov_cnt' elements, * starting at byte offset `start', to value `fillc', repeating it - * `bytes' number of times. `Offset' must point to the inside of iovec. + * `bytes' number of times. * If `bytes' is large enough, only last bytes portion of iovec, * up to the end of it, will be filled with the specified value. * Function return actual number of bytes processed, which is * min(size, iov_size(iov) - offset). + * Returns 0 when `offset' points to the outside of iovec. */ size_t iov_memset(const struct iovec *iov, const unsigned int iov_cnt, size_t offset, int fillc, size_t bytes); |