[Feature] Add -extended-stats for *nix platforms

On *nix platforms, there is now a `-extended-stats` option that will
print out some extended statistics for the test. The statistics are
based on information gleaned from the `TCP_INFO` of the underlying TCP
connections. What is implemented so far is just a proof of concept of
the extended stats that could be calculated. Depending on what users
want, we can add additional extended statistics.

1 files changed, 0 insertions, 62 deletions

diff --git a/utilities/tcpinfo_unix.go b/utilities/tcpinfo_unix.go
deleted file mode 100644
index b0b5252..0000000
--- a/utilities/tcpinfo_unix.go
+++ /dev/null
@@ -1,62 +0,0 @@
-//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd
-// +build darwin dragonfly freebsd linux netbsd openbsd
-
-package utilities
-
-import (
-	"fmt"
-	"net"
-
-	"golang.org/x/sys/unix"
-)
-
-func GetTCPInfo(connection net.Conn) (*unix.TCPInfo, error) {
-	tcpConn, ok := connection.(*net.TCPConn)
-	if !ok {
-		return nil, fmt.Errorf("connection is not a net.TCPConn")
-	}
-	rawConn, err := tcpConn.SyscallConn()
-	if err != nil {
-		return nil, err
-	}
-
-	var info *unix.TCPInfo = nil
-	rawConn.Control(func(fd uintptr) {
-		info, err = unix.GetsockoptTCPInfo(int(fd), unix.SOL_TCP, unix.TCP_INFO)
-	})
-	return info, err
-}
-
-func PrintTCPInfo(info *unix.TCPInfo) {
-	fmt.Printf("TCPInfo: \n")
-	fmt.Printf("	State: %v\n", info.State)
-	fmt.Printf("	Ca_state: %v\n", info.Ca_state)
-	fmt.Printf("	Retransmits: %v\n", info.Retransmits)
-	fmt.Printf("	Probes: %v\n", info.Probes)
-	fmt.Printf("	Backoff: %v\n", info.Backoff)
-	fmt.Printf("	Options: %v\n", info.Options)
-	fmt.Printf("	Rto: %v\n", info.Rto)
-	fmt.Printf("	Ato: %v\n", info.Ato)
-	fmt.Printf("	Snd_mss: %v\n", info.Snd_mss)
-	fmt.Printf("	Rcv_mss: %v\n", info.Rcv_mss)
-	fmt.Printf("	Unacked: %v\n", info.Unacked)
-	fmt.Printf("	Sacked: %v\n", info.Sacked)
-	fmt.Printf("	Lost: %v\n", info.Lost)
-	fmt.Printf("	Retrans: %v\n", info.Retrans)
-	fmt.Printf("	Fackets: %v\n", info.Fackets)
-	fmt.Printf("	Last_data_sent: %v\n", info.Last_data_sent)
-	fmt.Printf("	Last_ack_sent: %v\n", info.Last_ack_sent)
-	fmt.Printf("	Last_data_recv: %v\n", info.Last_data_recv)
-	fmt.Printf("	Last_ack_recv: %v\n", info.Last_ack_recv)
-	fmt.Printf("	Pmtu: %v\n", info.Pmtu)
-	fmt.Printf("	Rcv_ssthresh: %v\n", info.Rcv_ssthresh)
-	fmt.Printf("	Rtt: %v\n", info.Rtt)
-	fmt.Printf("	Rttvar: %v\n", info.Rttvar)
-	fmt.Printf("	Snd_ssthresh: %v\n", info.Snd_ssthresh)
-	fmt.Printf("	Snd_cwnd: %v\n", info.Snd_cwnd)
-	fmt.Printf("	Advmss: %v\n", info.Advmss)
-	fmt.Printf("	Reordering: %v\n", info.Reordering)
-	fmt.Printf("	Rcv_rtt: %v\n", info.Rcv_rtt)
-	fmt.Printf("	Rcv_space: %v\n", info.Rcv_space)
-	fmt.Printf("	Total_retrans: %v\n", info.Total_retrans)
-}