72080e79e9
llmath::llround->ll_round LL_ICC->LL_INTELC Add llpredicate Add LL_CPP11 macro Remove llhash Update llinitparam, llsd and all relatives of it.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/**
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* @file net.h
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* @brief Cross platform UDP network code.
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*
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* $LicenseInfo:firstyear=2000&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_NET_H
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#define LL_NET_H
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class LLTimer;
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class LLHost;
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#define NET_BUFFER_SIZE (0x2000)
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// Request a free local port from the operating system
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#define NET_USE_OS_ASSIGNED_PORT 0
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// Returns 0 on success, non-zero on error.
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// Sets socket handler/descriptor, changes nPort if port requested is unavailable.
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S32 start_net(S32& socket_out, int& nPort);
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void end_net(S32& socket_out);
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// returns size of packet or -1 in case of error
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S32 receive_packet(int hSocket, char * receiveBuffer);
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BOOL send_packet(int hSocket, const char *sendBuffer, int size, U32 recipient, int nPort); // Returns TRUE on success.
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//void get_sender(char * tmp);
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LLHost get_sender();
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U32 get_sender_port();
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U32 get_sender_ip(void);
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LLHost get_receiving_interface();
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U32 get_receiving_interface_ip(void);
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const char* u32_to_ip_string(U32 ip); // Returns pointer to internal string buffer, "(bad IP addr)" on failure, cannot nest calls
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char* u32_to_ip_string(U32 ip, char *ip_string); // NULL on failure, ip_string on success, you must allocate at least MAXADDRSTR chars
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U32 ip_string_to_u32(const char* ip_string); // Wrapper for inet_addr()
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extern const char* LOOPBACK_ADDRESS_STRING;
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extern const char* BROADCAST_ADDRESS_STRING;
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// useful MTU consts
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const S32 MTUBYTES = 1200; // 1500 = standard Ethernet MTU
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const S32 ETHERNET_MTU_BYTES = 1500;
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const S32 MTUBITS = MTUBYTES*8;
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const S32 MTUU32S = MTUBITS/32;
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// For automatic port discovery when running multiple viewers on one host
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const U32 PORT_DISCOVERY_RANGE_MIN = 13000;
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const U32 PORT_DISCOVERY_RANGE_MAX = PORT_DISCOVERY_RANGE_MIN + 50;
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#endif
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