tree 0c224d409dd20ca4c613d3ee35fab755ca13c1a2
parent 2fc8ae1dd77fbc55146b602f703add6dc314dea4
author Michael Tokarev <mjt@tls.msk.ru> 1331709534 +0400
committer Michael Tokarev <mjt@tls.msk.ru> 1339441931 +0400

rewrite iov_send_recv() and move it to iov.c

Make it much more understandable, add a missing
iov_cnt argument (number of iovs in the iov), and
add comments to it.

The new implementation has been extensively tested
by splitting a large buffer into many small
randomly-sized chunks, sending it over socket to
another, slow process and verifying the receiving
data is the same.

Also add a unit test for iov_send_recv(), sending/
receiving data between two processes over a socketpair
using random vectors and random sizes.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>