This lets us check timers every tenth second instead of every second,
so we can switch out of the more expensive select() mode even with
the default reporting interval of a second.
having it there may cause the select to return immediately every
time. Which is bad, m'kay?
Also, changed the coding idiom used to keep track of the maximum fd
in the fd sets, to be clearer.
The error numbers sent for SERVER_ERROR state were declared
as ints, and therefore could be 32 or 64 bits depending on
architecture. I changed them to be explicitly 32 bits.
This should be the last of these, I've checked out at every network
read/write call and they look ok.
And bumped the version to 3.0-RC5.
and iperf_run_server, so that API users get it too. Also, call
iperf_errexit with an appropriate message, which in -J mode dumps
out any accumulated JSON data.
one is the new -Z flag.
- Fixed potential bug in net.c's Nread and Nwrite routines. If they
had ever needed to loop they would have read/written the wrong address,
due to incorrect pointer arithmetic - sizeof(void) is not 1. Fix
was to change the type of the buffer pointer to char*, which also
meant adding casts to some callers.
- Better checking for conflicts between command-line flags - now they
should no longer be order-dependent.
- Added a new -Z / --zerocopy flag, to use a "zero copy" method of
sending data, such as sendfile(2) instead of the usual write(2).
- Renumbered error enum to make inserting new ones easier.
Previously, if you used -n to specify a test sending a specified number
of bytes and -P to send multiple streams in parallel, iperf3 would send
that many bytes on each stream. With this change it just sends the
specified total number of bytes regardless of how many streams are used.
