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/cvs/deliantra/server/socket/init.C
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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.41 by root, Wed Mar 14 15:44:47 2007 UTC vs.
Revision 1.44 by root, Fri Apr 27 02:43:04 2007 UTC

… …
56 * client. 56 * client.
57 */ 57 */
58client::client (int fd, const char *peername) 58client::client (int fd, const char *peername)
59: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
60 socket_ev (this, &client::socket_cb), 60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb), 61 cmd_ev (this, &client::cmd_cb)
62 cc_inv (this), cc_other (this)
63{ 62{
64 refcnt_inc (); // the socket is an external reference 63 refcnt_inc (); // the socket is an external reference
64
65 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
65 66
66 { 67 {
67 struct linger linger_opt; 68 struct linger linger_opt;
68 69
69 linger_opt.l_onoff = 0; 70 linger_opt.l_onoff = 0;
70 linger_opt.l_linger = 0; 71 linger_opt.l_linger = 0;
71 72
72 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 73 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 74 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
74 } 75 }
75 76
76 { 77 {
78 int val;
79
80#ifdef IP_TOS
77 int val = IPTOS_LOWDELAY; 81 val = IPTOS_LOWDELAY;
78
79 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 82 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
80 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 83 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
81 } 84#endif
82 85
83 { 86#ifdef TCP_NODELAY
84 int val = 1; 87 val = 1;
85
86 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) 88 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
87 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 89 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
90#endif
91
92 // set some very aggressive keepalive parameters
93#ifdef TCP_KEEPIDLE
94 val = 1;
95 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
96 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
97#endif
98
99#ifdef TCP_KEEPCNT
100 val = 3;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
103#endif
104
105#ifdef TCP_KEEPINTVL
106 val = 1;
107 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
108 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
109#endif
110
111 // try to find the mss value in use
112#ifdef TCP_MAXSEG
113 socklen_t sl = sizeof (val);
114 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
115 mss = val;
116#endif
88 } 117 }
89
90#ifdef __linux__
91 {
92 int val;
93
94 // set some very aggressive keepalive parameters
95 val = 10;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98
99 val = 5;
100 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
101 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
102
103 val = 1;
104 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
105 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
106 }
107#endif
108 118
109 { 119 {
110 int bufsize = 65535; /*Supposed absolute upper limit */ 120 int bufsize = 65535; /*Supposed absolute upper limit */
111 int oldbufsize; 121 int oldbufsize;
112 int buflen = sizeof (int); 122 int buflen = sizeof (int);

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