Quelle PerfSocket.cpp Sprache: C

/*---------------------------------------------------------------
* Copyright (c) 1999,2000,2001,2002,2003
* The Board of Trustees of the University of Illinois
* All Rights Reserved.
*---------------------------------------------------------------
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software (Iperf) and associated
* documentation files (the "Software"), to deal in the Software
* without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute,
* sublicense, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and
* the following disclaimers.
*
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimers in the documentation and/or other materials
* provided with the distribution.
*
*
* Neither the names of the University of Illinois, NCSA,
* nor the names of its contributors may be used to endorse
* or promote products derived from this Software without
* specific prior written permission.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* ________________________________________________________________
* National Laboratory for Applied Network Research
* National Center for Supercomputing Applications
* University of Illinois at Urbana-Champaign
* http://www.ncsa.uiuc.edu
* ________________________________________________________________
*
* PerfSocket.cpp
* by Mark Gates <mgates@nlanr.net>
*    Ajay Tirumala <tirumala@ncsa.uiuc.edu>
* -------------------------------------------------------------------
* Has routines the Client and Server classes use in common for
* performance testing the network.
* Changes in version 1.2.0
*     for extracting data from files
* -------------------------------------------------------------------
* headers
* uses
*   <stdlib.h>
*   <stdio.h>
*   <string.h>
*
*   <sys/types.h>
*   <sys/socket.h>
*   <unistd.h>
*
*   <arpa/inet.h>
*   <netdb.h>
*   <netinet/in.h>
*   <sys/socket.h>
* ------------------------------------------------------------------- */

#define HEADERS()

#include "headers.h"

#include "PerfSocket.hpp"
#include "SocketAddr.h"
#include "util.h"

/* -------------------------------------------------------------------
* Set socket options before the listen() or connect() calls.
* These are optional performance tuning factors.
* ------------------------------------------------------------------- */

void SetSocketOptions( thread_Settings *inSettings ) {
    // set the TCP window size (socket buffer sizes)
    // also the UDP buffer size
    // must occur before call to accept() for large window sizes
    setsock_tcp_windowsize( inSettings->mSock, inSettings->mTCPWin,
                            (inSettings->mThreadMode == kMode_Client ? 1 : 0) );

    if ( isCongestionControl( inSettings ) ) {
#ifdef TCP_CONGESTION
Socklen_t len = strlen( inSettings->mCongestion ) + 1;
int rc = setsockopt( inSettings->mSock, IPPROTO_TCP, TCP_CONGESTION,
        inSettings->mCongestion, len);
if (rc == SOCKET_ERROR ) {
  fprintf(stderr, "Attempt to set '%s' congestion control failed: %s\n",
   inSettings->mCongestion, strerror(errno));
  exit(1);
}
#else
fprintf( stderr, "The -Z option is not available on this operating system\n");
#endif
    }

    // check if we're sending multicast, and set TTL
    if ( isMulticast( inSettings ) && ( inSettings->mTTL > 0 ) ) {
int val = inSettings->mTTL;
#ifdef HAVE_MULTICAST
if ( !SockAddr_isIPv6( &inSettings->local ) ) {
     int rc = setsockopt( inSettings->mSock, IPPROTO_IP, IP_MULTICAST_TTL,
      (const void*) &val, (Socklen_t) sizeof(val));

     WARN_errno( rc == SOCKET_ERROR, "multicast ttl" );
}
#ifdef HAVE_IPV6_MULTICAST
else {
     int rc = setsockopt( inSettings->mSock, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
      (const void*) &val, (Socklen_t) sizeof(val));
     WARN_errno( rc == SOCKET_ERROR, "multicast ttl" );
}
#endif
#endif
    }

#ifdef IP_TOS

    // set IP TOS (type-of-service) field
    if ( inSettings->mTOS > 0 ) {
        int  tos = inSettings->mTOS;
        Socklen_t len = sizeof(tos);
        int rc = setsockopt( inSettings->mSock, IPPROTO_IP, IP_TOS,
                             (char*) &tos, len );
        WARN_errno( rc == SOCKET_ERROR, "setsockopt IP_TOS" );
    }
#endif

    if ( !isUDP( inSettings ) ) {
        // set the TCP maximum segment size
        setsock_tcp_mss( inSettings->mSock, inSettings->mMSS );

#ifdef TCP_NODELAY

        // set TCP nodelay option
        if ( isNoDelay( inSettings ) ) {
            int nodelay = 1;
            Socklen_t len = sizeof(nodelay);
            int rc = setsockopt( inSettings->mSock, IPPROTO_TCP, TCP_NODELAY,
                                 (char*) &nodelay, len );
            WARN_errno( rc == SOCKET_ERROR, "setsockopt TCP_NODELAY" );
        }
#endif
    }
}
// end SetSocketOptions

quality100%

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.