+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2014 UnitedStack <haomai@unitedstack.com>
- *
- * Author: Haomai Wang <haomaiwang@gmail.com>
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-
-#include "net_handler.h"
-#include "common/errno.h"
-#include "common/debug.h"
-
-#define dout_subsys ceph_subsys_ms
-#undef dout_prefix
-#define dout_prefix *_dout << "NetHandler "
-
-namespace ceph{
-
-int NetHandler::create_socket(int domain, bool reuse_addr)
-{
- int s;
- int r = 0;
-
- if ((s = ::socket(domain, SOCK_STREAM, 0)) == -1) {
- r = errno;
- lderr(cct) << __func__ << " couldn't create socket " << cpp_strerror(r) << dendl;
- return -r;
- }
-
-#if !defined(__FreeBSD__)
- /* Make sure connection-intensive things like the benchmark
- * will be able to close/open sockets a zillion of times */
- if (reuse_addr) {
- int on = 1;
- if (::setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
- r = errno;
- lderr(cct) << __func__ << " setsockopt SO_REUSEADDR failed: "
- << strerror(r) << dendl;
- close(s);
- return -r;
- }
- }
-#endif
-
- return s;
-}
-
-int NetHandler::set_nonblock(int sd)
-{
- int flags;
- int r = 0;
-
- /* Set the socket nonblocking.
- * Note that fcntl(2) for F_GETFL and F_SETFL can't be
- * interrupted by a signal. */
- if ((flags = fcntl(sd, F_GETFL)) < 0 ) {
- r = errno;
- lderr(cct) << __func__ << " fcntl(F_GETFL) failed: " << cpp_strerror(r) << dendl;
- return -r;
- }
- if (fcntl(sd, F_SETFL, flags | O_NONBLOCK) < 0) {
- r = errno;
- lderr(cct) << __func__ << " fcntl(F_SETFL,O_NONBLOCK): " << cpp_strerror(r) << dendl;
- return -r;
- }
-
- return 0;
-}
-
-void NetHandler::set_close_on_exec(int sd)
-{
- int flags = fcntl(sd, F_GETFD, 0);
- if (flags < 0) {
- int r = errno;
- lderr(cct) << __func__ << " fcntl(F_GETFD): "
- << cpp_strerror(r) << dendl;
- return;
- }
- if (fcntl(sd, F_SETFD, flags | FD_CLOEXEC)) {
- int r = errno;
- lderr(cct) << __func__ << " fcntl(F_SETFD): "
- << cpp_strerror(r) << dendl;
- }
-}
-
-int NetHandler::set_socket_options(int sd, bool nodelay, int size)
-{
- int r = 0;
- // disable Nagle algorithm?
- if (nodelay) {
- int flag = 1;
- r = ::setsockopt(sd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(flag));
- if (r < 0) {
- r = errno;
- ldout(cct, 0) << "couldn't set TCP_NODELAY: " << cpp_strerror(r) << dendl;
- }
- }
- if (size) {
- r = ::setsockopt(sd, SOL_SOCKET, SO_RCVBUF, (void*)&size, sizeof(size));
- if (r < 0) {
- r = errno;
- ldout(cct, 0) << "couldn't set SO_RCVBUF to " << size << ": " << cpp_strerror(r) << dendl;
- }
- }
-
- // block ESIGPIPE
-#ifdef CEPH_USE_SO_NOSIGPIPE
- int val = 1;
- r = ::setsockopt(sd, SOL_SOCKET, SO_NOSIGPIPE, (void*)&val, sizeof(val));
- if (r) {
- r = errno;
- ldout(cct,0) << "couldn't set SO_NOSIGPIPE: " << cpp_strerror(r) << dendl;
- }
-#endif
- return -r;
-}
-
-void NetHandler::set_priority(int sd, int prio, int domain)
-{
-#ifdef SO_PRIORITY
- if (prio < 0) {
- return;
- }
-#ifdef IPTOS_CLASS_CS6
- int iptos = IPTOS_CLASS_CS6;
- int r = -1;
- switch (domain) {
- case AF_INET:
- r = ::setsockopt(sd, IPPROTO_IP, IP_TOS, &iptos, sizeof(iptos));
- break;
- case AF_INET6:
- r = ::setsockopt(sd, IPPROTO_IPV6, IPV6_TCLASS, &iptos, sizeof(iptos));
- break;
- default:
- lderr(cct) << "couldn't set ToS of unknown family (" << domain << ")"
- << " to " << iptos << dendl;
- return;
- }
- if (r < 0) {
- r = errno;
- ldout(cct,0) << "couldn't set TOS to " << iptos
- << ": " << cpp_strerror(r) << dendl;
- }
-
-#endif // IPTOS_CLASS_CS6
- // setsockopt(IPTOS_CLASS_CS6) sets the priority of the socket as 0.
- // See http://goo.gl/QWhvsD and http://goo.gl/laTbjT
- // We need to call setsockopt(SO_PRIORITY) after it.
- r = ::setsockopt(sd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
- if (r < 0) {
- r = errno;
- ldout(cct, 0) << __func__ << " couldn't set SO_PRIORITY to " << prio
- << ": " << cpp_strerror(r) << dendl;
- }
-#else
- return;
-#endif // SO_PRIORITY
-}
-
-int NetHandler::generic_connect(const entity_addr_t& addr, const entity_addr_t &bind_addr, bool nonblock)
-{
- int ret;
- int s = create_socket(addr.get_family());
- if (s < 0)
- return s;
-
- if (nonblock) {
- ret = set_nonblock(s);
- if (ret < 0) {
- close(s);
- return ret;
- }
- }
-
- set_socket_options(s, cct->_conf->ms_tcp_nodelay, cct->_conf->ms_tcp_rcvbuf);
-
- {
- entity_addr_t addr = bind_addr;
- if (cct->_conf->ms_bind_before_connect && (!addr.is_blank_ip())) {
- addr.set_port(0);
- ret = ::bind(s, addr.get_sockaddr(), addr.get_sockaddr_len());
- if (ret < 0) {
- ret = errno;
- ldout(cct, 2) << __func__ << " client bind error " << ", " << cpp_strerror(ret) << dendl;
- close(s);
- return -ret;
- }
- }
- }
-
- ret = ::connect(s, addr.get_sockaddr(), addr.get_sockaddr_len());
- if (ret < 0) {
- ret = errno;
- if (errno == EINPROGRESS && nonblock)
- return s;
-
- ldout(cct, 10) << __func__ << " connect: " << cpp_strerror(ret) << dendl;
- close(s);
- return -ret;
- }
-
- return s;
-}
-
-int NetHandler::reconnect(const entity_addr_t &addr, int sd)
-{
- int r = 0;
- int ret = ::connect(sd, addr.get_sockaddr(), addr.get_sockaddr_len());
-
- if (ret < 0 && errno != EISCONN) {
- r = errno;
- ldout(cct, 10) << __func__ << " reconnect: " << strerror(r) << dendl;
- if (r == EINPROGRESS || r == EALREADY)
- return 1;
- return -r;
- }
-
- return 0;
-}
-
-int NetHandler::connect(const entity_addr_t &addr, const entity_addr_t& bind_addr)
-{
- return generic_connect(addr, bind_addr, false);
-}
-
-int NetHandler::nonblock_connect(const entity_addr_t &addr, const entity_addr_t& bind_addr)
-{
- return generic_connect(addr, bind_addr, true);
-}
-
-
-}
Code Review / stor4nfv.git / blobdiff