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1 // Copyright (c) 2002-2009 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 "logservcli.h" |
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17 |
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18 // System includes |
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19 #include <e32math.h> |
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20 #include <s32mem.h> |
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21 |
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22 // User includes |
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23 #include "LogServShared.h" |
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24 |
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25 static TInt StartServer() |
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26 // |
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27 // Start the server process/thread which lives in an EPOCEXE object |
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28 // |
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29 { |
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30 const TUidType serverUid(KNullUid,KNullUid,KServerUid3); |
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31 |
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32 // |
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33 // EPOC is easy, we just create a new server process. Simultaneous launching |
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34 // of two such processes should be detected when the second one attempts to |
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35 // create the server object, failing with KErrAlreadyExists. |
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36 // |
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37 RProcess server; |
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38 TInt r=server.Create(KLogServerName,KNullDesC,serverUid); |
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39 if (r == KErrNone) |
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40 server.SetPriority(EPriorityForeground); |
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41 |
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42 if (r!=KErrNone) |
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43 return r; |
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44 |
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45 TRequestStatus stat; |
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46 server.Rendezvous(stat); |
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47 if (stat!=KRequestPending) |
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48 server.Kill(0); // abort startup |
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49 else |
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50 server.Resume(); // logon OK - start the server |
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51 User::WaitForRequest(stat); // wait for start or death |
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52 // we can't use the 'exit reason' if the server panicked as this |
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53 // is the panic 'reason' and may be '0' which cannot be distinguished |
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54 // from KErrNone |
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55 r=(server.ExitType()==EExitPanic) ? KErrGeneral : stat.Int(); |
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56 server.Close(); |
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57 return r; |
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58 |
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59 } |
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60 |
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61 // Initialise the operation and view ids |
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62 RLogSession::RLogSession() |
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63 : iOperationId(KLogNullOperationId + 1), iViewId(KLogNullViewId + 1) |
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64 { |
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65 } |
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66 |
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67 TInt RLogSession::Connect() |
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68 // |
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69 // Connect to the server, attempting to start it if necessary |
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70 // |
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71 { |
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72 TInt retry=2; |
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73 for (;;) |
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74 { |
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75 TInt r=CreateSession(KLogServerFullName,TVersion(0,0,0)); |
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76 if (r!=KErrNotFound && r!=KErrServerTerminated) |
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77 return r; |
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78 if (--retry==0) |
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79 return r; |
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80 r=StartServer(); |
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81 if (r!=KErrNone && r!=KErrAlreadyExists) |
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82 return r; |
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83 } |
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84 } |
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85 |
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86 |
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87 void RLogSession::Send(TInt aType, const TIpcArgs& aArgs, TRequestStatus& aStatus) const |
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88 { |
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89 SendWithRetryAsync(aType, aArgs, aStatus); |
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90 } |
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91 |
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92 TInt RLogSession::Send(TInt aType, const TIpcArgs& aArgs) const |
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93 { |
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94 return SendWithRetry(aType, aArgs); |
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95 } |
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96 |
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97 TInt RLogSession::SendWithRetry(TInt aType, const TIpcArgs& aParam) const |
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98 { |
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99 TInt ret = SendReceive(aType, aParam); |
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100 if (ret < KErrNone) |
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101 { |
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102 if(ret == KErrServerTerminated || ret == KErrNotFound) |
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103 { |
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104 // Try to reconnect |
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105 const_cast<RLogSession&>(*this).Close(); |
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106 ret = const_cast<RLogSession&>(*this).Connect(); |
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107 if(ret == KErrNone) |
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108 { |
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109 // Try to resend |
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110 ret = SendReceive(aType, aParam); |
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111 } |
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112 } |
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113 } |
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114 return ret; |
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115 } |
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116 |
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117 |
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118 void RLogSession::SendWithRetryAsync(TInt aType, const TIpcArgs& aParam, TRequestStatus& aStatus) const |
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119 { |
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120 SendReceive(aType, aParam, aStatus); |
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121 } |
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122 |
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123 |
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124 |
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125 |
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126 |
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127 |
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128 |
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129 |
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130 |
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131 |
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132 |
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133 #ifdef LOGGING_ENABLED |
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134 |
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135 const TInt KLogEngLogBufferSize = 256; |
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136 |
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137 void Log::New() |
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138 { |
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139 _LIT(KNewLogText, "===== NEW LOG ====="); |
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140 // |
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141 RFileLogger logger; |
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142 TInt ret=logger.Connect(); |
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143 if (ret==KErrNone) |
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144 { |
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145 logger.CreateLog(KLogFolder, KLogFileName, EFileLoggingModeOverwrite); |
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146 logger.Write(KNewLogText); |
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147 } |
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148 logger.Close(); |
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149 } |
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150 |
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151 void Log::Write(const TDesC& aText) |
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152 { |
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153 PruneLogFile(); |
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154 |
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155 RFileLogger logger; |
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156 TInt ret=logger.Connect(); |
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157 if (ret==KErrNone) |
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158 { |
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159 logger.SetDateAndTime(EFalse,EFalse); |
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160 logger.CreateLog(KLogFolder, KLogFileName,EFileLoggingModeAppend); |
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161 TBuf<KLogEngLogBufferSize> buf; |
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162 |
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163 // The debug log uses hometime rather than UTC for its timestamps. This is |
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164 // purely a debugging aid. |
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165 TTime now; |
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166 now.HomeTime(); |
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167 |
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168 TDateTime dateTime; |
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169 dateTime = now.DateTime(); |
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170 buf.Format(KTimeFormat,dateTime.Hour(),dateTime.Minute(),dateTime.Second(),dateTime.MicroSecond()); |
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171 buf.AppendFormat(KTextFormat,&aText); |
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172 |
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173 logger.Write(buf); |
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174 } |
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175 |
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176 logger.Close(); |
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177 } |
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178 |
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179 void Log::WriteFormat(TRefByValue<const TDesC> aFmt,...) |
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180 { |
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181 VA_LIST list; |
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182 VA_START(list,aFmt); |
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183 |
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184 PruneLogFile(); |
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185 |
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186 TBuf<2*KLogEngLogBufferSize> buf; |
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187 buf.SetMax(); |
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188 buf.FillZ(); |
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189 |
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190 // The debug log uses hometime rather than UTC for its timestamps. This is |
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191 // purely a debugging aid. |
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192 TTime now; |
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193 now.HomeTime(); |
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194 |
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195 TDateTime dateTime; |
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196 dateTime = now.DateTime(); |
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197 buf.Format(KTimeFormat,dateTime.Hour(),dateTime.Minute(),dateTime.Second(),dateTime.MicroSecond()); |
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198 buf.AppendFormatList(aFmt, list ); |
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199 |
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200 RFileLogger logger; |
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201 TInt ret=logger.Connect(); |
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202 if (ret==KErrNone) |
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203 { |
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204 logger.SetDateAndTime(EFalse,EFalse); |
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205 logger.CreateLog(KLogFolder, KLogFileName,EFileLoggingModeAppend); |
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206 logger.Write(buf); |
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207 } |
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208 |
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209 logger.Close(); |
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210 } |
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211 |
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212 void Log::PruneLogFile() |
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213 { |
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214 const TInt KMaxLogSize = 1024 * 500; |
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215 // |
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216 _LIT(KBaseFolder, "_:\\Logs\\"); |
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217 TFileName fileName(KBaseFolder); |
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218 fileName[0] = 'A' + static_cast<TInt>(RFs::GetSystemDrive()); |
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219 fileName.Append(KLogFolder); |
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220 fileName.Append(KPathDelimiter); |
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221 fileName.Append(KLogFileName); |
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222 // |
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223 RFs fsSession; |
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224 if (fsSession.Connect() == KErrNone) |
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225 { |
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226 TEntry entry; |
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227 if (fsSession.Entry(fileName, entry) == KErrNone) |
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228 { |
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229 // Check size and delete if its too big |
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230 if (entry.iSize >= KMaxLogSize) |
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231 { |
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232 TInt fileDeleteErr=fsSession.Delete(fileName); |
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233 |
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234 // If a debug build - record error |
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235 #ifdef _DEBUG |
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236 if (fileDeleteErr != KErrNone) |
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237 { |
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238 RDebug::Print(_L("Log::PruneLogFile - Failed to delete file. Error = %d"), fileDeleteErr); |
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239 } |
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240 #else |
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241 (void)fileDeleteErr; |
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242 #endif |
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243 } |
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244 } |
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245 } |
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246 fsSession.Close(); |
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247 } |
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248 |
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249 #endif |
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250 |