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@brief ENet Win32 system specific functions
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#define ENET_BUILDING_LIB 1
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static enet_uint32 timeBase = 0;
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enet_initialize (void)
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WORD versionRequested = MAKEWORD (1, 1);
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if (WSAStartup (versionRequested, & wsaData))
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if (LOBYTE (wsaData.wVersion) != 1||
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HIBYTE (wsaData.wVersion) != 1)
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enet_deinitialize (void)
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return (enet_uint32) timeGetTime () - timeBase;
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enet_time_set (enet_uint32 newTimeBase)
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timeBase = (enet_uint32) timeGetTime () - newTimeBase;
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enet_address_set_host (ENetAddress * address, const char * name)
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struct hostent * hostEntry;
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hostEntry = gethostbyname (name);
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if (hostEntry == NULL ||
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hostEntry -> h_addrtype != AF_INET)
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unsigned long host = inet_addr (name);
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if (host == INADDR_NONE)
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address -> host = host;
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address -> host = * (enet_uint32 *) hostEntry -> h_addr_list [0];
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enet_address_get_host_ip (const ENetAddress * address, char * name, size_t nameLength)
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char * addr = inet_ntoa (* (struct in_addr *) & address -> host);
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strncpy (name, addr, nameLength);
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enet_address_get_host (const ENetAddress * address, char * name, size_t nameLength)
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struct hostent * hostEntry;
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in.s_addr = address -> host;
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hostEntry = gethostbyaddr ((char *) & in, sizeof (struct in_addr), AF_INET);
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if (hostEntry == NULL)
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return enet_address_get_host_ip (address, name, nameLength);
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strncpy (name, hostEntry -> h_name, nameLength);
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enet_socket_bind (ENetSocket socket, const ENetAddress * address)
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struct sockaddr_in sin;
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memset (& sin, 0, sizeof (struct sockaddr_in));
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sin.sin_family = AF_INET;
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sin.sin_port = ENET_HOST_TO_NET_16 (address -> port);
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sin.sin_addr.s_addr = address -> host;
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sin.sin_addr.s_addr = INADDR_ANY;
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(struct sockaddr *) & sin,
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sizeof (struct sockaddr_in)) == SOCKET_ERROR ? -1 : 0;
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enet_socket_listen (ENetSocket socket, int backlog)
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return listen (socket, backlog < 0 ? SOMAXCONN : backlog) == SOCKET_ERROR ? -1 : 0;
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enet_socket_create (ENetSocketType type)
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return socket (PF_INET, type == ENET_SOCKET_TYPE_DATAGRAM ? SOCK_DGRAM : SOCK_STREAM, 0);
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enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
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int result = SOCKET_ERROR;
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case ENET_SOCKOPT_NONBLOCK:
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u_long nonBlocking = (u_long) value;
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result = ioctlsocket (socket, FIONBIO, & nonBlocking);
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case ENET_SOCKOPT_BROADCAST:
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result = setsockopt (socket, SOL_SOCKET, SO_BROADCAST, (char *) & value, sizeof (int));
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case ENET_SOCKOPT_REUSEADDR:
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result = setsockopt (socket, SOL_SOCKET, SO_REUSEADDR, (char *) & value, sizeof (int));
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case ENET_SOCKOPT_RCVBUF:
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result = setsockopt (socket, SOL_SOCKET, SO_RCVBUF, (char *) & value, sizeof (int));
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case ENET_SOCKOPT_SNDBUF:
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result = setsockopt (socket, SOL_SOCKET, SO_SNDBUF, (char *) & value, sizeof (int));
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case ENET_SOCKOPT_RCVTIMEO:
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result = setsockopt (socket, SOL_SOCKET, SO_RCVTIMEO, (char *) & value, sizeof (int));
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case ENET_SOCKOPT_SNDTIMEO:
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result = setsockopt (socket, SOL_SOCKET, SO_SNDTIMEO, (char *) & value, sizeof (int));
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return result == SOCKET_ERROR ? -1 : 0;
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enet_socket_connect (ENetSocket socket, const ENetAddress * address)
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struct sockaddr_in sin;
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memset (& sin, 0, sizeof (struct sockaddr_in));
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sin.sin_family = AF_INET;
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sin.sin_port = ENET_HOST_TO_NET_16 (address -> port);
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sin.sin_addr.s_addr = address -> host;
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return connect (socket, (struct sockaddr *) & sin, sizeof (struct sockaddr_in)) == SOCKET_ERROR ? -1 : 0;
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enet_socket_accept (ENetSocket socket, ENetAddress * address)
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struct sockaddr_in sin;
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int sinLength = sizeof (struct sockaddr_in);
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result = accept (socket,
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address != NULL ? (struct sockaddr *) & sin : NULL,
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address != NULL ? & sinLength : NULL);
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if (result == INVALID_SOCKET)
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return ENET_SOCKET_NULL;
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address -> host = (enet_uint32) sin.sin_addr.s_addr;
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address -> port = ENET_NET_TO_HOST_16 (sin.sin_port);
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enet_socket_destroy (ENetSocket socket)
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closesocket (socket);
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enet_socket_send (ENetSocket socket,
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const ENetAddress * address,
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const ENetBuffer * buffers,
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struct sockaddr_in sin;
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memset (& sin, 0, sizeof (struct sockaddr_in));
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sin.sin_family = AF_INET;
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sin.sin_port = ENET_HOST_TO_NET_16 (address -> port);
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sin.sin_addr.s_addr = address -> host;
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if (WSASendTo (socket,
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address != NULL ? (struct sockaddr *) & sin : NULL,
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address != NULL ? sizeof (struct sockaddr_in) : 0,
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NULL) == SOCKET_ERROR)
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if (WSAGetLastError () == WSAEWOULDBLOCK)
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return (int) sentLength;
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enet_socket_receive (ENetSocket socket,
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ENetAddress * address,
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ENetBuffer * buffers,
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INT sinLength = sizeof (struct sockaddr_in);
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struct sockaddr_in sin;
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if (WSARecvFrom (socket,
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address != NULL ? (struct sockaddr *) & sin : NULL,
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address != NULL ? & sinLength : NULL,
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NULL) == SOCKET_ERROR)
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switch (WSAGetLastError ())
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if (flags & MSG_PARTIAL)
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address -> host = (enet_uint32) sin.sin_addr.s_addr;
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address -> port = ENET_NET_TO_HOST_16 (sin.sin_port);
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return (int) recvLength;
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enet_socketset_select (ENetSocket maxSocket, ENetSocketSet * readSet, ENetSocketSet * writeSet, enet_uint32 timeout)
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struct timeval timeVal;
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timeVal.tv_sec = timeout / 1000;
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timeVal.tv_usec = (timeout % 1000) * 1000;
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return select (maxSocket + 1, readSet, writeSet, NULL, & timeVal);
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enet_socket_wait (ENetSocket socket, enet_uint32 * condition, enet_uint32 timeout)
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fd_set readSet, writeSet;
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struct timeval timeVal;
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timeVal.tv_sec = timeout / 1000;
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timeVal.tv_usec = (timeout % 1000) * 1000;
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FD_ZERO (& writeSet);
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if (* condition & ENET_SOCKET_WAIT_SEND)
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FD_SET (socket, & writeSet);
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if (* condition & ENET_SOCKET_WAIT_RECEIVE)
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FD_SET (socket, & readSet);
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selectCount = select (socket + 1, & readSet, & writeSet, NULL, & timeVal);
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* condition = ENET_SOCKET_WAIT_NONE;
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if (selectCount == 0)
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if (FD_ISSET (socket, & writeSet))
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* condition |= ENET_SOCKET_WAIT_SEND;
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if (FD_ISSET (socket, & readSet))
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* condition |= ENET_SOCKET_WAIT_RECEIVE;