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1 // Copyright (c) 1999-2009 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 <redircli.h> |
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18 #include <redircliinternal.h> |
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19 |
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20 #ifndef EKA2 |
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21 GLDEF_C TInt E32Dll(TDllReason) |
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22 { |
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23 return KErrNone; |
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24 } |
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25 #endif |
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26 |
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27 // server name |
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28 _LIT(KRedirServerName,"RedirServer"); |
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29 |
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30 enum TRedirStream |
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31 { |
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32 ERedirRead, |
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33 ERedirWrite, |
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34 ERedirFlush |
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35 }; |
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36 |
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37 // A version must be specified when creating a session with the server |
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38 const TUint KRedirServMajorVersionNumber=1; |
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39 const TUint KRedirServMinorVersionNumber=0; |
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40 const TUint KRedirServBuildVersionNumber=0; |
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41 |
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42 |
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43 //********************************** |
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44 // CRedirSession |
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45 //********************************** |
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46 // This class represents a session in the server. |
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47 // Functions are provided to respond appropriately to client messages. |
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48 NONSHARABLE_CLASS(CRedirSession) : public CSession2 |
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49 { |
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50 public: |
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51 static CRedirSession* NewL(CStreamBase2* aStream); |
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52 //service request |
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53 virtual void ServiceL(const RMessage2 &aMessage); |
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54 private : |
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55 // construct/destruct |
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56 CRedirSession(CStreamBase2* aStream); |
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57 ~CRedirSession(); |
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58 //services available to handle read/write requests |
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59 TInt WriteStreamL(const RMessage2& aMessage); |
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60 private: |
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61 CStreamBase2* iStream; |
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62 }; |
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63 |
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64 // ------------------- CRedirServer2 implementation -------------------------- |
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65 |
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66 |
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67 /** |
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68 Constructs and allocates memory for a new CRedirServer2 object. |
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69 @return RedirServer |
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70 @param aStreamFactory Stream factory. |
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71 */ |
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72 EXPORT_C CRedirServer2* CRedirServer2::NewL(CStreamFactoryBase2* aStreamFactory) |
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73 { |
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74 CRedirServer2* r=new(ELeave) CRedirServer2(aStreamFactory); |
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75 CleanupStack::PushL(r); |
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76 r->StartL(KRedirServerName); |
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77 CleanupStack::Pop(); |
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78 return r; |
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79 } |
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80 |
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81 /** |
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82 Default constructor |
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83 @param aStreamFactory Stream factory. |
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84 */ |
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85 CRedirServer2::CRedirServer2(CStreamFactoryBase2* aStreamFactory) |
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86 : CServer2(EPriority) |
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87 { |
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88 iStreamFactory = aStreamFactory; |
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89 } |
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90 |
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91 /** |
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92 Virtual destructor |
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93 */ |
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94 CRedirServer2::~CRedirServer2() |
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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 Create a new server session. |
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100 Checks if the aVersion is the right version and make a new session. |
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101 @leave KErrNotSupported |
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102 @return Sharable Session for all threads within a single process. |
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103 @param aVersion Contains version information. |
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104 A version is defined by a set of three numbers:major,minor,build version number |
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105 */ |
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106 CSession2* CRedirServer2::NewSessionL(const TVersion& aVersion, const RMessage2& /*aMessage*/) const |
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107 { |
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108 |
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109 TVersion v(KRedirServMajorVersionNumber,KRedirServMinorVersionNumber, |
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110 KRedirServBuildVersionNumber); |
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111 if (!User::QueryVersionSupported(v,aVersion)) |
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112 User::Leave(KErrNotSupported); |
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113 // get a stream object from the current stream factory |
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114 CStreamBase2* stream = iStreamFactory->GetStream(); |
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115 return CRedirSession::NewL(stream); |
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116 } |
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117 |
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118 /** |
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119 Sets the stream factory |
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120 @param aStreamFactory a factory to be set |
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121 */ |
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122 EXPORT_C void CRedirServer2::SetStreamFactory(CStreamFactoryBase2* aStreamFactory) |
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123 { |
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124 // set the stream factory |
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125 iStreamFactory = aStreamFactory; |
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126 } |
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127 |
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128 // ------------------- CRedirSession2 implementation -------------------------- |
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129 CRedirSession* CRedirSession::NewL(CStreamBase2* aStream) |
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130 { |
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131 return new(ELeave) CRedirSession(aStream); |
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132 } |
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133 |
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134 CRedirSession::CRedirSession(CStreamBase2* aStream) |
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135 : iStream(aStream) |
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136 {} |
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137 |
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138 CRedirSession::~CRedirSession() |
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139 { |
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140 // The stream returned by GetStream() is effectively a singleton as |
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141 // implemented in the current redirector, so we leave deletion to |
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142 // the factory |
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143 } |
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144 |
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145 void CRedirSession::ServiceL(const RMessage2& aMessage) |
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146 { |
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147 TInt ret = KErrNone; |
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148 switch (aMessage.Function()) |
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149 { |
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150 case ERedirRead: |
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151 // call the Stream to do the read for us |
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152 iStream->Read(aMessage); |
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153 break; |
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154 case ERedirWrite: |
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155 TRAP(ret,WriteStreamL(aMessage)); |
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156 aMessage.Complete(ret); |
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157 break; |
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158 case ERedirFlush: |
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159 // TO DO: ignore flushing? |
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160 aMessage.Complete(ret); |
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161 break; |
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162 default: |
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163 aMessage.Complete(KErrNotSupported); |
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164 break; |
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165 } |
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166 return; |
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167 } |
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168 |
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169 TInt CRedirSession::WriteStreamL(const RMessage2& aMessage) |
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170 { |
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171 const TInt KMaxTransfer=256; |
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172 // |
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173 // retrieve the length of the buffer the client wants to write |
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174 TInt length = aMessage.Int1(); |
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175 // retrieve the descriptor to be written |
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176 TBuf8<KMaxTransfer> bufDes; |
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177 for (TInt offset=0;offset<length;offset+=KMaxTransfer) |
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178 { |
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179 aMessage.ReadL(0, bufDes, offset); |
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180 // send descriptor to stream for printing |
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181 iStream->Write(bufDes); |
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182 } |
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183 return KErrNone; |
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184 } |
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185 |
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186 // -------------- CLIENT IMPLEMENTATION ----------------------------- |
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187 |
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188 EXPORT_C TInt RRedirSession2::Connect() |
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189 { |
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190 TVersion version(KRedirServMajorVersionNumber,KRedirServMinorVersionNumber, |
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191 KRedirServBuildVersionNumber); |
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192 return CreateSession(KRedirServerName,version,1); // only one message allowed - no concurrency |
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193 } |
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194 |
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195 TInt RRedirSession2::CheckEOF(TRequestStatus& aStatus) |
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196 { |
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197 if (Handle()!=0) |
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198 return KErrNone; |
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199 TRequestStatus* aStatusPtr=&aStatus; |
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200 User::RequestComplete(aStatusPtr,KErrEof); |
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201 return KErrEof; |
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202 } |
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203 |
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204 EXPORT_C void RRedirSession2::Read(TRequestStatus& aStatus, TDes8& aDes) |
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205 { |
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206 Read(aStatus, aDes, aDes.MaxLength()); |
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207 } |
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208 |
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209 EXPORT_C void RRedirSession2::Read(TRequestStatus& aStatus, TDes8& aDes, TInt aLength) |
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210 { |
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211 if (CheckEOF(aStatus)) |
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212 return; |
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213 SendReceive(ERedirRead,TIpcArgs(&aDes,aLength),aStatus); |
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214 } |
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215 |
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216 EXPORT_C void RRedirSession2::Write(TRequestStatus& aStatus, const TDesC8& aDes) |
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217 { |
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218 Write(aStatus, aDes, aDes.Length()); |
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219 } |
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220 |
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221 EXPORT_C void RRedirSession2::Write(TRequestStatus& aStatus, const TDesC8& aDes, TInt aLength) |
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222 // |
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223 // Write aLength bytes |
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224 // |
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225 { |
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226 if (CheckEOF(aStatus)) |
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227 return; |
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228 SendReceive(ERedirWrite,TIpcArgs(&aDes,aLength),aStatus); |
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229 } |
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230 |
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231 EXPORT_C void RRedirSession2::Flush(TRequestStatus& aStatus) |
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232 // |
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233 // Flush output |
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234 // |
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235 { |
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236 if (CheckEOF(aStatus)) |
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237 return; |
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238 SendReceive(ERedirFlush,aStatus); |
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239 } |
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240 |
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241 |
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242 |