diff options
Diffstat (limited to 'src/sys/socket/mod.rs')
-rw-r--r-- | src/sys/socket/mod.rs | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs index 4301ee1f..726ff8e1 100644 --- a/src/sys/socket/mod.rs +++ b/src/sys/socket/mod.rs @@ -1102,23 +1102,22 @@ pub fn sendmmsg<'a, I, C>( let mut output = Vec::<libc::mmsghdr>::with_capacity(reserve_items); - let mut cmsgs_buffer = vec![0u8; 0]; + let mut cmsgs_buffers = Vec::<Vec<u8>>::with_capacity(reserve_items); for d in iter { - let cmsgs_start = cmsgs_buffer.len(); - let cmsgs_required_capacity: usize = d.cmsgs.as_ref().iter().map(|c| c.space()).sum(); - let cmsgs_buffer_need_capacity = cmsgs_start + cmsgs_required_capacity; - cmsgs_buffer.resize(cmsgs_buffer_need_capacity, 0); + let capacity: usize = d.cmsgs.as_ref().iter().map(|c| c.space()).sum(); + let mut cmsgs_buffer = vec![0u8; capacity]; output.push(libc::mmsghdr { msg_hdr: pack_mhdr_to_send( - &mut cmsgs_buffer[cmsgs_start..], + &mut cmsgs_buffer, &d.iov, &d.cmsgs, d.addr.as_ref() ), msg_len: 0, }); + cmsgs_buffers.push(cmsgs_buffer); }; let ret = unsafe { libc::sendmmsg(fd, output.as_mut_ptr(), output.len() as _, flags.bits() as _) }; |