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fe38e4acb2
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6146 d57e44dd-8a1f-0410-8b47-8ef2f437770f
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* Copyright (C) 2007 - 2015 Vladislav Bolkhovitin
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* Copyright (C) 2007 - 2015 SanDisk Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2
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* of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/tcp.h>
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#include <string.h>
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#include <errno.h>
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#include "iscsid.h"
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void set_non_blocking(int fd)
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{
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int res = fcntl(fd, F_GETFL);
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if (res != -1) {
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res = fcntl(fd, F_SETFL, res | O_NONBLOCK);
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if (res)
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log_warning("unable to set fd flags (%s)!", strerror(errno));
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} else
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log_warning("unable to get fd flags (%s)!", strerror(errno));
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}
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void sock_set_keepalive(int sock, int timeout)
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{
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if (timeout) { /* timeout [s] */
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int opt = 2;
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if (setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &opt, sizeof(opt)))
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log_warning("unable to set TCP_KEEPCNT on server socket (%s)!", strerror(errno));
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if (setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &timeout, sizeof(timeout)))
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log_warning("unable to set TCP_KEEPIDLE on server socket (%s)!", strerror(errno));
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opt = 3;
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if (setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &opt, sizeof(opt)))
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log_warning("unable to set KEEPINTVL on server socket (%s)!", strerror(errno));
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opt = 1;
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if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)))
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log_warning("unable to set SO_KEEPALIVE on server socket (%s)!", strerror(errno));
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}
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}
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