//
// Copyright (c) 2017 Michael Tuexen
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// SUCH DAMAGE.
//

// https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211003

--tolerance_usecs=50000
--mtu=16384

 0.00 `sysctl -w net.inet.tcp.delayed_ack=0`
+0.00 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0.00 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [8192], 4) = 0
+0.00 getsockopt(3, SOL_SOCKET, SO_RCVBUF, [8192], [4]) = 0
+0.00 fcntl(3, F_GETFL) = 0x02 (flags O_RDWR)
+0.00 fcntl(3, F_SETFL, O_RDWR | O_NONBLOCK) = 0
+0.00 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+0.00 > S  0:0(0) win 8192 <mss 16344,nop,wscale 6,sackOK,TS val 100 ecr 0>
+0.10 < S. 0:0(0) ack 1 win 32767 <mss 16344>
+0.00 >  . 1:1(0) ack 1 win 8192
//
+0.00 < . 1:8193(8192) ack 1 win 65535
+0.00 > . 1:1(0) ack 8193 win 0
+0.00 read(3, ..., 8192) = 8192
+0.00 > . 1:1(0) ack 8193 win 8192
+0.00 close(3) = 0