1 | /**
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2 | * CRXSocket.cpp
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3 | */
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4 | #include "CRXSocket.h"
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5 |
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6 | #include <string.h>
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7 |
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8 | #ifdef _WIN32
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9 | # pragma comment (lib, "ws2_32.lib")
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10 | # define close(__socket) closesocket(__socket)
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11 | #endif
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12 |
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13 | bool CRXSocket::mInitialized = false;
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14 |
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15 | CRXSocket::CRXSocket (int aSocket)
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16 | : mSocket (aSocket)
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17 | {
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18 | /*----------------------------------------------------------------*/
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19 | CRXSocket::Initialize ();
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20 |
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21 | memset ((void *)&mAddress, 0x0, sizeof (struct sockaddr_in));
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22 | /*----------------------------------------------------------------*/
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23 | }
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24 |
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25 | CRXSocket::~CRXSocket (void)
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26 | {
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27 | /*----------------------------------------------------------------*/
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28 | Close ();
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29 | /*----------------------------------------------------------------*/
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30 | }
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31 |
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32 | void
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33 | CRXSocket::Attach (int aSocket)
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34 | {
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35 | /*----------------------------------------------------------------*/
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36 | mSocket = aSocket;
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37 | /*----------------------------------------------------------------*/
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38 | }
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39 |
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40 | int
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41 | CRXSocket::Detach (void)
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42 | {
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43 | int aSocket = mSocket;
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44 |
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45 | /*----------------------------------------------------------------*/
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46 | mSocket = 0;
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47 |
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48 | /*----------------------------------------------------------------*/
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49 | return aSocket;
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50 | }
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51 |
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52 | void
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53 | CRXSocket::Close (void)
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54 | {
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55 | /*----------------------------------------------------------------*/
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56 | if (mSocket <= 0)
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57 | return ;
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58 |
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59 | close (mSocket);
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60 | mSocket = 0;
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61 | /*----------------------------------------------------------------*/
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62 | }
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63 |
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64 | CRXSocket::operator int (void) const
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65 | {
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66 | /*----------------------------------------------------------------*/
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67 | /*----------------------------------------------------------------*/
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68 | return mSocket;
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69 | }
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70 |
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71 | CRXSocket &
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72 | CRXSocket::operator = (int aSocket)
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73 | {
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74 | /*----------------------------------------------------------------*/
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75 | Attach (aSocket);
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76 | /*----------------------------------------------------------------*/
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77 | return *this;
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78 | }
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79 |
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80 | int
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81 | CRXSocket::SetTimeout (const int aTimeout)
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82 | {
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83 | int aResult = 0;
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84 |
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85 | #ifndef _WIN32
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86 | struct timeval aTimeVal;
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87 | aTimeVal.tv_sec = aTimeout;
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88 | aTimeVal.tv_usec= 0;
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89 | #else
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90 | int aTimeMilliSec = aTimeout * 1000;
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91 | #endif
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92 |
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93 | /*----------------------------------------------------------------*/
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94 | if (!IsReady ())
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95 | return ERROR_TCPSOCKET_NOT_READY;
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96 |
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97 | if (aTimeout == TCPSOCKET_NO_TIMEOUT)
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98 | return 0;
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99 |
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100 | aResult = setsockopt (mSocket,
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101 | SOL_SOCKET,
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102 | SO_RCVTIMEO,
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103 | #ifdef _WIN32
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104 | (char *) &aTimeMilliSec,
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105 | #else
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106 | &aTimeVal,
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107 | #endif
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108 | (socklen_t) sizeof (aTimeVal));
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109 | if (aResult < 0)
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110 | {
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111 | aResult = ERROR_TCPSOCKET_FAILED_TO_SET_SOCKOPT;
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112 | CRX_ERROR_SET (aResult, "Failed to set socket option.");
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113 | }
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114 | /*----------------------------------------------------------------*/
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115 |
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116 | return aResult;
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117 | }
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118 |
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119 | int
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120 | CRXSocket::Initialize (void)
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121 | {
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122 | int aResult = 0;
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123 |
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124 | /*----------------------------------------------------------------*/
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125 | if (CRXSocket::IsInitialized ())
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126 | return aResult;
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127 |
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128 | #ifdef WIN32
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129 | WSADATA aWinSockData;
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130 |
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131 | aResult = WSAStartup (MAKEWORD (2, 0), &aWinSockData);
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132 | if (aResult != 0)
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133 | {
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134 | aResult = ERROR_TCPSOCKET_FAILED_TO_INITIALIZE;
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135 | return aResult;
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136 | }
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137 | #endif
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138 |
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139 | mInitialized = true;
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140 |
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141 | /*----------------------------------------------------------------*/
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142 | return aResult;
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143 | }
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144 |
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145 | void
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146 | CRXSocket::Finalize (void)
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147 | {
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148 | /*----------------------------------------------------------------*/
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149 | #ifdef WIN32
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150 | WSACleanup ();
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151 | #endif
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152 | /*----------------------------------------------------------------*/
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153 | }
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154 |
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155 | bool
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156 | CRXSocket::IsInitialized (void)
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157 | {
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158 | /*----------------------------------------------------------------*/
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159 | /*----------------------------------------------------------------*/
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160 | return mInitialized;
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161 | }
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162 |
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163 | bool
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164 | CRXSocket::IsReady (void) const
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165 | {
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166 | /*----------------------------------------------------------------*/
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167 | /*----------------------------------------------------------------*/
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168 | return IsInitialized () && IsCreated ();
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169 | }
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170 |
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171 | bool
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172 | CRXSocket::IsCreated (void) const
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173 | {
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174 | /*----------------------------------------------------------------*/
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175 | /*----------------------------------------------------------------*/
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176 | return mSocket > 0 ? true : false;
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177 | }
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178 |
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179 | int
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180 | CRXSocket::CreateSocket (void)
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181 | {
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182 | int aResult = -1;
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183 |
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184 | /*----------------------------------------------------------------*/
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185 | if (!IsInitialized () || IsCreated ())
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186 | {
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187 | aResult = ERROR_TCPSOCKET_ALREADY_IN_USE;
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188 | CRX_ERROR_SET (aResult, "Already in use.");
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189 | return aResult;
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190 | }
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191 |
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192 | aResult = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
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193 | if (aResult < 0)
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194 | {
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195 | aResult = ERROR_TCPSOCKET_FAILED_TO_CREATE_SOCKET;
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196 | CRX_ERROR_SET (aResult, "Failed to create socket(%d).", GetSystemErrorCode ());
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197 | return aResult;
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198 | }
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199 |
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200 | mSocket = aResult;
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201 |
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202 | /*----------------------------------------------------------------*/
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203 | return aResult;
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204 | }
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205 |
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206 | int
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207 | CRXSocket::Connect (const std::string aUrl,
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208 | const unsigned short aPort,
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209 | const int aTimeout)
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210 | {
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211 | int aResult = -1;
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212 | struct hostent * aHostEnt;
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213 | struct linger aLinger;
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214 |
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215 | /*----------------------------------------------------------------*/
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216 | aResult = CreateSocket ();
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217 | if (aResult < 0)
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218 | {
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219 | aResult = ERROR_TCPSOCKET_FAILED_TO_CREATE_SOCKET;
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220 | CRX_ERROR_SET (aResult, "Failed to create socket(%d).", GetSystemErrorCode ());
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221 | return aResult;
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222 | }
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223 |
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224 | mAddress.sin_family = AF_INET;
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225 | mAddress.sin_port = htons (aPort);
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226 | mAddress.sin_addr.s_addr = inet_addr (aUrl.c_str ());
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227 |
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228 | if (mAddress.sin_addr.s_addr == (unsigned int)-1)
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229 | {
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230 | aHostEnt = gethostbyname (aUrl.c_str ());
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231 | if (aHostEnt == NULL)
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232 | {
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233 | aResult = ERROR_TCPSOCKET_FAILED_TO_GET_HOSTNAME;
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234 | CRX_ERROR_SET (aResult, "Failed to get hostname.");
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235 | return aResult;
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236 | }
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237 | mAddress.sin_family = aHostEnt->h_addrtype;
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238 | memcpy (&(mAddress.sin_addr.s_addr), aHostEnt->h_addr, aHostEnt->h_length);
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239 | }
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240 |
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241 | aLinger.l_onoff = 1;
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242 | aLinger.l_linger = 0;
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243 | aResult = setsockopt (mSocket,
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244 | SOL_SOCKET,
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245 | SO_LINGER,
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246 | #ifdef _WIN32
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247 | (char *) &aLinger,
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248 | #else
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249 | &aLinger,
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250 | #endif
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251 | (socklen_t) sizeof (aLinger));
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252 | if (aResult < 0)
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253 | {
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254 | aResult = ERROR_TCPSOCKET_FAILED_TO_SET_SOCKOPT;
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255 | CRX_ERROR_SET (aResult, "Failed to set socket option (linger).");
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256 | }
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257 |
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258 | aResult = SetTimeout (aTimeout);
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259 | if (aResult < 0)
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260 | {
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261 | aResult = ERROR_TCPSOCKET_FAILED_TO_SET_TIMEOUT;
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262 | CRX_ERROR_SET (aResult, "Failed to set timeout (%d).", GetSystemErrorCode ());
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263 | return aResult;
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264 | }
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265 |
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266 | aResult = connect (mSocket, (struct sockaddr*) &mAddress, sizeof (mAddress));
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267 | if (aResult < 0)
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268 | {
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269 | aResult = ERROR_TCPSOCKET_FAILED_TO_CONNECT;
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270 | CRX_ERROR_SET (aResult, "Failed to connect (%d).", GetSystemErrorCode ());
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271 | }
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272 |
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273 | /*----------------------------------------------------------------*/
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274 | return aResult;
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275 | }
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276 |
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277 | int
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278 | CRXSocket::CreateServer (const unsigned short aPort,
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279 | const int aBacklog,
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280 | struct sockaddr_in * aAddress)
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281 | {
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282 | int aResult = -1;
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283 |
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284 | int aReuseAddress = 1;
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285 |
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286 | /*----------------------------------------------------------------*/
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287 | aResult = CreateSocket ();
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288 | if (aResult < 0)
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289 | {
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290 | aResult = ERROR_TCPSOCKET_FAILED_TO_CREATE_SOCKET;
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291 | CRX_ERROR_SET (aResult, "Failed to create socket(%d).", GetSystemErrorCode ());
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292 | return aResult;
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293 | }
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294 |
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295 | aResult = setsockopt (mSocket,
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296 | SOL_SOCKET,
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297 | SO_REUSEADDR,
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298 | #ifdef _WIN32
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299 | (char *) &aReuseAddress,
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300 | #else
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301 | &aReuseAddress,
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302 | #endif
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303 | (socklen_t) sizeof (aReuseAddress));
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304 | if (aResult < 0)
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305 | {
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306 | aResult = ERROR_TCPSOCKET_FAILED_TO_SET_SOCKOPT;
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307 | CRX_ERROR_SET (aResult, "Failed to set socket option (reuseaddr).");
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308 | }
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309 |
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310 | mAddress.sin_family = AF_INET;
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311 | mAddress.sin_addr.s_addr= htonl (INADDR_ANY);
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312 | mAddress.sin_port = htons (aPort);
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313 |
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314 | aResult = bind (mSocket, (struct sockaddr *)&mAddress, sizeof (struct sockaddr));
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315 | if (aResult < 0)
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316 | {
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317 | aResult = ERROR_TCPSOCKET_FAILED_TO_BIND;
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318 | CRX_ERROR_SET (aResult, "Failed to bind(%d).", GetSystemErrorCode ());
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319 | return aResult;
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320 | }
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321 |
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322 | aResult = listen (mSocket, aBacklog);
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323 | if (aResult < 0)
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324 | {
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325 | aResult = ERROR_TCPSOCKET_FAILED_TO_LISTEN;
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326 | CRX_ERROR_SET (aResult, "Failed to listen(%d).", GetSystemErrorCode ());
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327 | return aResult;
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328 | }
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329 |
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330 | if (aAddress != NULL)
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331 | {
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332 | memset ((void *)aAddress, 0x0, sizeof (struct sockaddr_in));
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333 | memcpy ((void *)aAddress, (void *)&mAddress, sizeof (struct sockaddr_in));
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334 | }
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335 |
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336 | /*----------------------------------------------------------------*/
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337 | return aResult;
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338 | }
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339 |
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340 | int
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341 | CRXSocket::Accept (struct sockaddr_in * aRemoteAddress,
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342 | int * aAddressLength)
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343 | {
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344 | int aResult = -1;
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345 |
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346 | struct sockaddr_in aAddress;
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347 | socklen_t aLength = sizeof (aAddress);
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348 |
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349 | /*----------------------------------------------------------------*/
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350 | if (!IsReady ())
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351 | return ERROR_TCPSOCKET_NOT_READY;
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352 |
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353 | aResult = accept (mSocket, (struct sockaddr *) &aAddress, &aLength);
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354 | if (aResult < 0)
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355 | {
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356 | aResult = ERROR_TCPSOCKET_FAILED_TO_ACCEPT;
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357 | CRX_ERROR_SET (aResult, "Failed to accept(%d).", GetSystemErrorCode ());
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358 | return aResult;
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359 | }
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360 |
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361 | if (aRemoteAddress != NULL)
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362 | {
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363 | memset ((void *)aRemoteAddress, 0x0, sizeof (struct sockaddr_in));
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364 | memcpy ((void *)aRemoteAddress, (void *)&aAddress, sizeof (struct sockaddr_in));
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365 | }
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366 |
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367 | if (aAddressLength != NULL)
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368 | *aAddressLength = aLength;
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369 |
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370 | /*----------------------------------------------------------------*/
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371 | return aResult;
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372 | }
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373 |
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374 | int
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375 | CRXSocket::Send (const char * aBuffer,
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376 | int aSize)
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377 | {
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378 | int aResult = -1;
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379 |
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380 | /*----------------------------------------------------------------*/
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381 | if (!IsReady ())
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382 | return ERROR_TCPSOCKET_NOT_READY;
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383 |
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384 | aResult = send (mSocket, aBuffer, aSize, 0);
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385 | if (aResult != aSize)
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386 | {
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387 | aResult = ERROR_TCPSOCKET_FAILED_TO_SEND;
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388 | CRX_ERROR_SET (aResult, "Failed to send(%d).", GetSystemErrorCode ());
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389 | return aResult;
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390 | }
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391 |
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392 | /*----------------------------------------------------------------*/
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393 | return aResult;
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394 | }
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395 |
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396 | int
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397 | CRXSocket::Receive (char * aBuffer,
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398 | int aSize)
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399 | {
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400 | int aResult = -1;
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401 |
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402 | /*----------------------------------------------------------------*/
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403 | if (!IsReady ())
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404 | return ERROR_TCPSOCKET_NOT_READY;
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405 |
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406 | aResult = recv (mSocket, aBuffer, aSize, 0);
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407 | if (aResult < 0)
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408 | {
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409 | aResult = ERROR_TCPSOCKET_FAILED_TO_RECEIVE;
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410 | CRX_ERROR_SET (aResult, "Failed to receive(%d).", GetSystemErrorCode ());
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411 | return aResult;
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412 | }
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413 |
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414 | /*----------------------------------------------------------------*/
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415 | return aResult;
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416 | }
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