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annotate host/tools/Utils/common/eCosSocket.h @ 126:518f42066aba ecos-sw-2000-09-19

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Merge from eCos master repository on 2000-09-19-06:25:26-BST
author jlarmour
date Tue, 19 Sep 2000 05:53:51 +0000
parents 6736c52df507
children ff4a4e7f57a8
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1 //####COPYRIGHTBEGIN####
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2 //
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3 // ----------------------------------------------------------------------------
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4 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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5 //
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6 // This program is part of the eCos host tools.
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7 //
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8 // This program is free software; you can redistribute it and/or modify it
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9 // under the terms of the GNU General Public License as published by the Free
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10 // Software Foundation; either version 2 of the License, or (at your option)
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11 // any later version.
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12 //
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13 // This program is distributed in the hope that it will be useful, but WITHOUT
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14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 // more details.
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17 //
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18 // You should have received a copy of the GNU General Public License along with
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19 // this program; if not, write to the Free Software Foundation, Inc.,
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20 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21 //
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22 // ----------------------------------------------------------------------------
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23 //
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24 //####COPYRIGHTEND####
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25 //=================================================================
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26 //
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27 // eCosSocket.h
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28 //
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29 // Socket test class
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30 //
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31 //=================================================================
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32 //=================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): sdf
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36 // Contributors: sdf
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37 // Date: 1999-04-01
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38 // Description: This class abstracts tcp/ip sockets for use in the testing infrastructure
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39 // Usage:
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40 //
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41 //####DESCRIPTIONEND####
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42 //=================================================================
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43 // This class is a host-independent interface to a TCP/IP socket
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44 // There are two flavours of socket - server and client.
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45 // Server sockets listen (accept) on a socket number. Client sockets connect to a host:port.
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46 // The class can be used thus:
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47 // Server:
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48 // CeCosSocket sock; // no-argument ctor
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49 // if(-1!=sock.Listen(6000)){
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50 // ...
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51 // }
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52 // Client:
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53 // CeCosSocket sock;
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54 // if(sock.Connect(_T("ginga"),5000)){
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55 // ...
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56 // }
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57 // In each of the above cases the socket is closed automatically by the dtor.
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58 //
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59 // Alternatively, the ctor can be used directly:
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60 // Server:
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61 // CeCosSocket sock(6000));
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62 // ...
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63 // Client:
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64 // CeCosSocket sock(_T("ginga"),5000));
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65 // ...
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66 //
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67 //=================================================================
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68 #include "eCosStd.h"
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69 #include "Collections.h"
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70
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71 #ifndef _SOCKETUTILS_H
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72 #define _SOCKETUTILS_H
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73
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74 class CeCosSerial;
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75
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76 class CeCosSocket {
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77 public:
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78 static const String GetHostByName(LPCTSTR pszHost);
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79
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80 // These functions must be called before any other operation is carried out:
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81 static bool Init();
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82 static void Term();
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83
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84 typedef bool (CALLBACK FilterFunc)(void *&,unsigned int &,CeCosSerial&,CeCosSocket &,void *);
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85
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86 // A function that causes an operation to stop - i.e. it when it returns true the operation is aborted.
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87 typedef bool (CALLBACK StopFunc)(void *);
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88
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89 enum {NOTIMEOUT=0x7fffffff-1,DEFAULTTIMEOUT=-2}; // No explicit timeout specified
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90
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91 // Listen and this form of constructor used to act as server
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92 static int Listen(int nTcpPort);
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93 CeCosSocket (); // Caller promises to call Accept() or Connect() later
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94
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95 // Accept-like ctor (act as server)
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96 CeCosSocket (int sock /*result of previous call of Listen*/, bool *pbStop=0);
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97 // Connect-like ctor (act as client)
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98 CeCosSocket (LPCTSTR pszHostPort,Duration dTimeout=NOTIMEOUT);
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99
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100 bool Accept(int sock /*result of previous call of Listen*/, bool *pbStop=0);
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101 // This form of constructor used to act as client
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102 bool Connect(LPCTSTR pszHostPort,Duration dTimeout=NOTIMEOUT);
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103 ~CeCosSocket();
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104
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105 int Client() const { return m_nClient; }
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106 static String ClientName(int nClient);
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107
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108 int Sock() const { return m_nSock; }
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109
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110 // Set the default timeout for all operations
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111 void SetTimeout (Duration dTimeout) { m_nDefaultTimeout=dTimeout; }
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112
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113 // Use to test success after opening with the ctor:
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114 bool Ok() { return -1!=m_nSock; }
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115
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116 // Close the given socket
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117 bool Close () { return CloseSocket(m_nSock); }
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118
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119 // Return last error on this socket
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120 int SocketError() { return m_nErr; }
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121
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122 // Return last socket error, translated to a string
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123 String SocketErrString();
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124 static String SocketErrString(int nErr);
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125
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126 // Read and write functions
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127
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128 // Untyped: these versions allow the operation to be aborted either by timeout or by the "stop func" returning true.
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129 bool send(const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0){
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130 return sendrecv(true,pData,nLength,pszMsg,dTimeout,pFunc,pParam);
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131 }
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132 bool recv(const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0){
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133 return sendrecv(false,pData,nLength,pszMsg,dTimeout,pFunc,pParam);
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134 }
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135
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136 // Read/write an integer (this can be used between machines of different endianness)
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137 bool recvInteger (int &n,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
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138 bool sendInteger (int n,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
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139
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140 // Read/write a string
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141 bool recvString (String &str,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
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142 bool sendString (const String &str,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
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143
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144 static bool CloseSocket (int &sock);
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145 bool Peek (unsigned int &nAvail);
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146
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147 // Miscellaneous helper functions:
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148
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149 // Combine string and integer to the form host:port:
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150 static String HostPort(LPCTSTR pszHost,int nPort);
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151 // Decompose (opposite of the above):
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152 static bool ParseHostPort (LPCTSTR pszHostPort, String &pszHost, int &nPort);
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153 // Just check for legality:
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154 static bool IsLegalHostPort (LPCTSTR pszHostPort);
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155 // Are these two hosts really the same?
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156 static bool SameHost (LPCTSTR host1,LPCTSTR host2);
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157 // Set up a connection between a serial port and a socket. Traffic is simply passed between them.
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158 static bool ConnectSocketToSerial (int nListenSock,LPCTSTR pszPort, int nBaud,FilterFunc *pSerialToSocketFilterFunc=0,void *pSerialParam=0,FilterFunc *pSocketToSerialFilterFunc=0,void *pSocketParam=0,bool *pbStop=0);
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159 static bool ConnectSocketToSerial (CeCosSocket &socket,CeCosSerial &serial,FilterFunc *pSerialToSocketFilterFunc=0,void *pSerialParam=0, FilterFunc *pSocketToSerialFilterFunc=0,void *pSocketParam=0,bool *pbStop=0);
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160
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161 static LPCTSTR MyHostName();
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162 static LPCTSTR MySimpleHostName();
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163
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164 // Set up a connection between two sockets. Traffic is simply passed between them.
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165 bool ConnectSocketToSocket (CeCosSocket &o,FilterFunc *pSocketToSocketFilterFunc1,FilterFunc *pSocketToSocketFilterFunc2,void *pParam,bool *pbStop);
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166
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167 enum SSReadResult {SS_SOCKET_ERROR=-1,SS_SOCKET_READ=1,SS_SERIAL_ERROR=-2,SS_SERIAL_READ=2,SS_STOPPED=0};
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168
82
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169 protected:
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170
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171 // Blocking read on one or other of the data sources:
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172 // Result: -1 - socket error occurred
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173 // 1 - data read from socket
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174 // -2 - serial error occurred
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175 // 2 - data read from serial
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176
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177 static SSReadResult SSRead (CeCosSerial &serial,CeCosSocket &socket,void *pBuf,unsigned int nSize,unsigned int &nRead,bool *pbStop);
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178
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179 Duration m_nDefaultTimeout;
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180 Duration TimeoutDuration (Duration dTimeout);
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181 // Set appropriate socket options (most importantly, non-blocking mode)
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182 bool SetSocketOptions ();
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183 int m_nSock;
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184 int m_nClient;
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185 int m_nErr;
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186 void SaveError() {
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187 #ifdef _WIN32
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188 m_nErr=WSAGetLastError();
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189 #else // UNIX
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190 m_nErr=errno;
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191 #endif
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192 }
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193 bool sendrecv(bool bSend,const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0);
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194
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195 };
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196 #endif