1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Metadata Harvester server's client |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 |
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22 |
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23 |
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24 // INCLUDE FILES |
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25 |
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26 #include "mdhclientsession.h" |
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27 #include "mdhcommon.h" |
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28 #include "msdebug.h" |
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29 |
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30 |
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31 // CONSTANTS |
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32 // Number of retries to start server |
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33 const TInt KServerRetries = 2; |
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34 |
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35 // =========================== LOCAL FUNCTIONS =============================== |
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36 |
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37 // --------------------------------------------------------------------------- |
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38 // StartServer |
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39 // Starts the CM Metadata Harvester server. |
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40 // Returns: TInt error: Error status of the CM Metadata Harvester startup. |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 // --------------------------------------------------------------------------- |
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44 // StartServer |
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45 // Creates a new process for the server and starts it up. |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 static TInt StartServer() |
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49 { |
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50 LOG(_L("[CmMdh Server]\t StartServer\n")); |
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51 |
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52 TInt result( KErrNone ); |
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53 // create server - if one of this name does not already exist |
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54 TFindServer findServer( KCmMdhServerName ); |
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55 TFullName name; |
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56 if ( findServer.Next( name ) != KErrNone ) // we don't exist already |
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57 { |
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58 |
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59 TRequestStatus status( KRequestPending ); |
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60 RProcess server; |
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61 // Create the server process |
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62 result = server.Create( KCmMdhServerExe, KNullDesC ); |
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63 if( result != KErrNone ) |
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64 { |
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65 return result; |
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66 } |
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67 |
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68 // Process created successfully |
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69 server.Resume(); // start it going |
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70 server.Rendezvous( status ); |
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71 |
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72 // Wait until the completion of the server creation |
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73 // server signals us when it's up |
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74 User::WaitForRequest( status ); |
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75 |
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76 |
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77 if( status != KErrNone ) |
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78 { |
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79 server.Close(); |
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80 return status.Int(); |
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81 } |
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82 |
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83 |
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84 // Server created successfully |
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85 server.Close(); // we can close the handle to server process now |
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86 } |
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87 return result; |
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88 } |
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89 |
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90 |
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91 // ========================== MEMBER FUNCTIONS =============================== |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // RCmMdhSession::RCmMdhSession |
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95 // C++ default constructor can NOT contain any code, that |
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96 // might leave. |
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97 // --------------------------------------------------------------------------- |
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98 // |
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99 RCmMdhSession::RCmMdhSession() |
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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 // --------------------------------------------------------------------------- |
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105 // RCmMdhSession::Connect |
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106 // Starts and creates a session of CM Metadata Harvester |
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107 // --------------------------------------------------------------------------- |
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108 // |
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109 TInt RCmMdhSession::Connect() |
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110 { |
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111 TInt tryLoop = 0; |
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112 TInt errCode = 0; |
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113 |
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114 for ( tryLoop = 0; tryLoop < KServerRetries; tryLoop++ ) |
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115 { |
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116 errCode = CreateSession(KCmMdhServerName, |
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117 TVersion( KCmMdhServerMajor, KCmMdhServerMinor, |
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118 KCmMdhServerBuild ) ); |
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119 //gives MessageSlots of -1 |
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120 //this uses global pool rather than local pool |
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121 |
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122 TRACE(Print(_L("[CmMdh Server]\t RCmMdhSession::Connect New Session \ |
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123 created with status %d\n"), errCode)); |
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124 if( errCode == KErrNotSupported ) |
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125 { |
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126 TRACE(Print(_L("[CmMdh Server]\t Version not supported!\n") )); |
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127 return errCode; |
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128 } |
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129 if ( errCode != KErrNotFound && errCode != KErrServerTerminated ) |
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130 { |
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131 return errCode; |
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132 } |
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133 |
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134 errCode = StartServer(); |
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135 |
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136 if ( errCode != KErrNone && errCode != KErrAlreadyExists ) |
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137 { |
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138 return errCode; |
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139 } |
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140 |
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141 } |
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142 return errCode; |
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143 } |
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144 |
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145 // --------------------------------------------------------------------------- |
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146 // RCmMdhSession::SearchMediaServers |
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147 // Searchs for neighborhood media servers |
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148 // --------------------------------------------------------------------------- |
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149 // |
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150 void RCmMdhSession::SearchMediaservers( TRequestStatus& aStatus ) |
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151 { |
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152 LOG(_L("[CmMdh Server]\t RCmMdhSession::SearchMediaservers\n")); |
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153 |
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154 SendReceive(ECmMdhSearchMediaservers, TIpcArgs(), aStatus); |
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155 } |
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156 |
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157 |
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158 // --------------------------------------------------------------------------- |
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159 // RCmMdhSession::Harvest |
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160 // Harvests and synchronizes metadata from found mediaservers |
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161 // --------------------------------------------------------------------------- |
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162 // |
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163 void RCmMdhSession::Harvest( TRequestStatus& aStatus ) |
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164 { |
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165 LOG(_L("[CmMdh Server]\t RCmMdhSession::SearchMediaServers\n")); |
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166 |
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167 SendReceive(ECmMdhHarvest, TIpcArgs(), aStatus); |
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168 } |
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169 |
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170 // --------------------------------------------------------------------------- |
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171 // RCmMdhSession::Cancel |
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172 // --------------------------------------------------------------------------- |
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173 // |
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174 void RCmMdhSession::Cancel() |
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175 { |
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176 LOG(_L("[CmMdh Server]\t RCmMdhSession::Cancel\n")); |
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177 |
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178 SendReceive(ECmMdhCancel, TIpcArgs()); |
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179 } |
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180 |
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181 |
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182 |
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