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1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include <e32std.h> |
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17 #include "IPC_MAIN.H" |
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18 #include "ES_IPC.H" |
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19 |
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20 CIpcProvdBase::CIpcProvdBase(CIpcProtocolHolder* aProtocol) |
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21 { |
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22 __DECLARE_NAME(_S("CIpcProvdBase")); |
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23 iProtocol=aProtocol; |
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24 } |
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25 |
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26 CIpcProvdBase::~CIpcProvdBase() |
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27 { |
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28 // ensure that another CIpcProvdBase doesn't end up with a dangling pointer to this CIpcProvdBase |
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29 if (iConnection && iConnection->iConnection == this) |
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30 { |
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31 iConnection->iConnection = NULL; |
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32 } |
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33 |
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34 iProtocol->SocketRemoved(iLocalAddr); |
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35 } |
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36 |
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37 void CIpcProvdBase::RemName(TSockAddr &anAddr)const |
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38 // |
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39 // Get the remote name we would connect to |
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40 // |
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41 { |
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42 anAddr.SetPort(iRemoteAddr); |
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43 } |
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44 |
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45 TInt CIpcProvdBase::SetRemName(TSockAddr& anAddr) |
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46 // |
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47 // Set the remote name prior to connecting (or as part of a send to) |
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48 // |
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49 { |
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50 iRemoteAddr=anAddr.Port(); |
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51 return KErrNone; |
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52 } |
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53 |
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54 void CIpcProvdBase::LocalName(TSockAddr &anAddr)const |
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55 // |
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56 // Get hte local name |
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57 // |
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58 { |
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59 anAddr.SetPort(iLocalAddr); |
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60 } |
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61 |
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62 TInt CIpcProvdBase::SetLocalName(TSockAddr &anAddr) |
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63 // |
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64 // Set the local name prior to accepting |
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65 // |
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66 { |
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67 TInt ret=iProtocol->CheckAndAllocatePortNumber(anAddr.Port()); |
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68 if (ret==KErrNone) |
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69 iLocalAddr=anAddr.Port(); |
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70 return ret; |
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71 } |
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72 |
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73 void CIpcProvdBase::AutoBind( void ) |
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74 // |
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75 // Automatically set the local name |
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76 // |
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77 { |
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78 iLocalAddr=iProtocol->GetNextFreePort(); |
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79 } |
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80 |
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81 TInt CIpcProvdBase::GetOption(TUint /*level*/,TUint /*name*/,TDes8& /*anOption*/)const |
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82 // |
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83 // |
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84 // |
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85 { |
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86 return KErrNotSupported; |
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87 } |
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88 |
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89 TInt CIpcProvdBase::SetOption(TUint /*level*/,TUint /*name*/,const TDesC8& /*anOption*/) |
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90 // |
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91 // |
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92 // |
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93 { |
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94 return KErrNotSupported; |
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95 } |
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96 |
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97 |
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98 |
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99 void CIpcProvdBase::Ioctl(TUint /*level*/,TUint /*name*/,TDes8 * /*anOption*/) |
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100 // |
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101 // |
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102 // |
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103 { |
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104 iSocket->Error(KErrNotSupported,MSocketNotify::EErrorIoctl); |
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105 } |
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106 |
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107 void CIpcProvdBase::CancelIoctl(TUint /*aLevel*/,TUint /*aName*/) |
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108 { |
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109 } |
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110 |
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111 TInt CIpcProvdBase::PassiveOpen(TUint aQue,const TDesC8 &/*aConnectionData*/) |
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112 // |
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113 // |
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114 // |
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115 { |
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116 return PassiveOpen(aQue); |
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117 } |
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118 |
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119 void CIpcProvdBase::Shutdown(TCloseType option,const TDesC8 &/*aDisconnectData*/) |
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120 // |
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121 // Shutdown with disconnect data |
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122 // |
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123 { |
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124 Shutdown(option); |
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125 } |
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126 |
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127 void CIpcProvdBase::ActiveOpen(const TDesC8 &/*aConnectionData*/) |
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128 // |
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129 // Active open with connection data - pass it on |
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130 // |
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131 { |
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132 ActiveOpen(); |
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133 } |
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134 |
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135 void CIpcProvdBase::Start() |
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136 // |
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137 // Start the provider - do nothing |
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138 // |
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139 { |
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140 } |
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141 |
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142 |
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143 void CIpcProvdBase::ActiveOpen(void) |
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144 // |
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145 // Actively connect to a peer socket |
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146 // |
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147 { |
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148 |
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149 CIpcProvdBase* peer=iProtocol->FindPeerForConnection(iRemoteAddr); |
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150 CIpcProvdBase* newSocket=NULL; |
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151 if (peer) |
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152 newSocket=peer->GetCloneSocket(); |
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153 if (newSocket) |
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154 { |
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155 iConnection=newSocket; |
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156 newSocket->iConnection=this; |
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157 newSocket->iRemoteAddr=iLocalAddr; |
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158 iSocket->ConnectComplete(); |
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159 peer->Connected(*newSocket); |
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160 } |
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161 else |
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162 iSocket->Error(KErrCouldNotConnect); |
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163 } |
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164 |
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165 void CIpcProvdBase::Shutdown(TCloseType aType) |
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166 { |
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167 if (iConnection) |
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168 iConnection->Disconnect(); |
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169 iConnection=NULL; |
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170 if (aType!=EImmediate) |
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171 iSocket->CanClose(); |
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172 } |
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173 |
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174 void CIpcProvdBase::Disconnect() |
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175 { |
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176 |
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177 if (iConnection) |
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178 { |
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179 if (iSocket) |
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180 { |
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181 iSocket->Disconnect(); |
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182 } |
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183 iConnection=NULL; |
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184 } |
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185 |
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186 iState=EDisconnected; |
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187 } |
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188 |
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189 TInt CIpcProvdBase::PassiveOpen(TUint /*aQue*/) |
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190 { |
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191 iState=EWaitingConnect; |
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192 return KErrNone; |
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193 } |
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194 |
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195 void CIpcProvdBase::Connected(CIpcProvdBase& aSocket) |
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196 { |
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197 iSocket->ConnectComplete(aSocket); |
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198 } |
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199 |
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200 // |
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201 |
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202 CIpcStreamProvd* CIpcStreamProvd::NewL(CIpcProtocolHolder* aProtocol) |
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203 { |
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204 CIpcStreamProvd* p=new(ELeave)CIpcStreamProvd(aProtocol); |
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205 CleanupStack::PushL(p); |
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206 p->iBuffer.SetLengthL(KIPCStreamDefaultBufferSize); |
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207 CleanupStack::Pop(); |
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208 return p; |
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209 } |
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210 |
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211 CIpcStreamProvd::CIpcStreamProvd(CIpcProtocolHolder* aProtocol) |
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212 :CIpcProvdBase(aProtocol) |
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213 { |
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214 __DECLARE_NAME(_S("CIpcStreamProvd")); |
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215 } |
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216 |
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217 CIpcProvdBase* CIpcStreamProvd::GetCloneSocket() |
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218 { |
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219 CIpcStreamProvd* newSock=NULL; |
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220 if (iState!=EWaitingConnect) |
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221 return newSock; |
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222 |
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223 TRAPD(ret,newSock=CIpcStreamProvd::NewL(iProtocol)); |
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224 if (ret!=KErrNone) |
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225 { |
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226 iSocket->Error(ret,MSocketNotify::EErrorConnect); |
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227 return NULL; |
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228 } |
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229 |
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230 newSock->AutoBind(); |
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231 iProtocol->Add(newSock); |
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232 return newSock; |
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233 } |
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234 |
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235 |
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236 TUint CIpcStreamProvd::Write(const TDesC8& aDesc,TUint /*options*/, TSockAddr* /*anAddr*/) |
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237 { |
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238 __ASSERT_DEBUG(iSocket,Panic(EBadWriteCall)); |
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239 if (!iConnection) |
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240 { |
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241 iSocket->Error(KErrDisconnected); |
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242 // error occured, the only possible error for this protocol is KErrNoMemory |
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243 return 0; |
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244 } |
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245 TInt len=Min(aDesc.Size(),iBuffer.Length()-iBuffer.Count()); |
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246 if (len) |
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247 { |
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248 iBuffer.Add(aDesc.Ptr(),len); |
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249 iConnection->NewData(len); |
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250 } |
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251 else |
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252 { |
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253 // error occured on attempt to send data, the only possible error for |
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254 // this protocol is KErrNoMemory |
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255 return 0; |
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256 } |
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257 |
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258 return len; |
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259 } |
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260 |
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261 void CIpcStreamProvd::GetData(TDes8 &aDesc,TUint /*options*/,TSockAddr* /*anAddr*/) |
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262 { |
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263 __ASSERT_DEBUG(iConnection,Panic(EBadWriteCall)); |
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264 __ASSERT_DEBUG(iSocket,Panic(EBadWriteCall)); |
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265 |
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266 CCirBuffer& buf=((CIpcStreamProvd *)iConnection)->iBuffer; |
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267 |
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268 __ASSERT_DEBUG(aDesc.Length()<=buf.Count(),Panic(EReadGetTooMuch)); |
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269 |
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270 buf.Remove((TUint8 *)aDesc.Ptr(),aDesc.Length()); |
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271 iConnection->CanSend(); |
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272 } |
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273 |
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274 void CIpcStreamProvd::NewData(TInt aLen) |
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275 // |
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276 // New data has arrived at our oppo. |
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277 // |
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278 { |
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279 iSocket->NewData(aLen); |
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280 } |
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281 |
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282 void CIpcStreamProvd::CanSend() |
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283 // |
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284 // New space has been made (in our buffer) by at our oppo. |
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285 // |
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286 { |
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287 iSocket->CanSend(); |
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288 } |