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/*******************************************************************************

    D bindings for the Linux's netinet/tcp.h structures.

    Defines constants found in tcp.h header on Linux system.

    Copyright:  Copyright (c) 2016 Sociomantic Labs. All rights reserved.
    License:    $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
    Authors:    Nemanja Boric

*******************************************************************************/

module core.sys.linux.netinet.tcp;

/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California.  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.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)tcp.h 8.1 (Berkeley) 6/10/93
*/

version (linux):

/// User-settable options (used with setsockopt).
enum
{
     TCP_NODELAY            = 1,  /// Don't delay send to coalesce packets
     TCP_MAXSEG             = 2,  /// Set maximum segment size
     TCP_CORK               = 3,  /// Control sending of partial frames
     TCP_KEEPIDLE           = 4,  /// Start keeplives after this period
     TCP_KEEPINTVL          = 5,  /// Interval between keepalives
     TCP_KEEPCNT            = 6,  /// Number of keepalives before death
     TCP_SYNCNT             = 7,  /// Number of SYN retransmits
     TCP_LINGER2            = 8,  /// Life time of orphaned FIN-WAIT-2 state
     TCP_DEFER_ACCEPT       = 9,  /// Wake up listener only when data arrive
     TCP_WINDOW_CLAMP       = 10, /// Bound advertised window
     TCP_INFO               = 11, /// Information about this connection.
     TCP_QUICKACK           = 12, /// Bock/reenable quick ACKs.
     TCP_CONGESTION         = 13, /// Congestion control algorithm.
     TCP_MD5SIG             = 14, /// TCP MD5 Signature (RFC2385)
     TCP_COOKIE_TRANSACTIONS     = 15, /// TCP Cookie Transactions
     TCP_THIN_LINEAR_TIMEOUTS    = 16, /// Use linear timeouts for thin streams
     TCP_THIN_DUPACK             = 17, /// Fast retrans. after 1 dupack
     TCP_USER_TIMEOUT       = 18, /// How long for loss retry before timeout
     TCP_REPAIR             = 19, /// TCP sock is under repair right now
     TCP_REPAIR_QUEUE       = 20, /// Set TCP queue to repair
     TCP_QUEUE_SEQ          = 21, /// Set sequence number of repaired queue.
     TCP_REPAIR_OPTIONS     = 22, /// Repair TCP connection options
     TCP_FASTOPEN           = 23, /// Enable FastOpen on listeners
     TCP_TIMESTAMP          = 24, /// TCP time stamp
     TCP_NOTSENT_LOWAT      = 25, /// Limit number of unsent bytes in  write queue.
     TCP_CC_INFO            = 26, /// Get Congestion Control (optional) info.
     TCP_SAVE_SYN           = 27, /// Record SYN headers for new connections.
     TCP_SAVED_SYN          = 28, /// Get SYN headers recorded for connection.
}