1 /* |
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2 * Copyright (c) 2006 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: The implementation of LCD service |
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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 #include <locodserviceplugin.h> |
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20 |
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21 #include "locodservice.h" |
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22 #include "debug.h" |
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23 |
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24 // ======== MEMBER FUNCTIONS ======== |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // Creates a service object based on the service plug in objects |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CLocodService* CLocodService::NewL(CLocodServicePlugin& aPlugin) |
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31 { |
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32 CLocodService* self = new (ELeave) CLocodService(aPlugin); |
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33 CleanupStack::PushL(self); |
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34 self->ConstructL(); |
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35 CleanupStack::Pop(self); |
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36 return self; |
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37 } |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // C++ destructor |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 CLocodService::~CLocodService() |
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44 { |
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45 delete iPlugin; |
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46 iRequests.Close(); |
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47 TRACE_FUNC |
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48 } |
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49 |
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50 // --------------------------------------------------------------------------- |
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51 // return the plugin instance |
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52 // --------------------------------------------------------------------------- |
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53 // |
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54 CLocodServicePlugin& CLocodService::Plugin() |
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55 { |
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56 return *iPlugin; |
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57 } |
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58 |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // A request is sent to service plug in to manage their services |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 TInt CLocodService::ManageService(TLocodBearer aBearer, TBool aStatus) |
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65 { |
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66 TRACE_INFO((_L("[Srvc %d] [SrvcState 0x%04x]"), iPlugin->ImplementationUid().iUid, iServiceStatus)) |
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67 |
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68 // if there is an outstanding request which has the same bearer, |
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69 // remove all later enqueued request, and |
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70 // enqueue this request if the bearer status is different from the ongoing one. |
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71 TInt count = iRequests.Count(); |
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72 for (TInt i = 0; i < count; i++) |
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73 { |
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74 if (iRequests[i].iBearer == aBearer && iRequests[i].iRequesting) |
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75 { |
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76 for (TInt j = count - 1; j > i; j--) |
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77 { |
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78 if (iRequests[j].iBearer == aBearer) |
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79 { |
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80 TRACE_INFO((_L("[Srvc %d] [ManSrvc] Remove buffered request(Bearer 0x%04x status %d)"), |
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81 iPlugin->ImplementationUid().iUid, aBearer, iRequests[j].iStatus)) |
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82 iRequests.Remove(j); |
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83 } |
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84 } |
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85 if ((!iRequests[i].iStatus && aStatus) || (iRequests[i].iStatus && !aStatus)) |
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86 { |
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87 TRACE_INFO((_L("[Srvc %d] [ManSrvc] Buffer request(Bearer 0x%04x status %d)"), |
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88 iPlugin->ImplementationUid().iUid, aBearer, aStatus)) |
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89 return iRequests.Append(TLocodServiceRequest(aBearer, aStatus)); |
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90 } |
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91 else |
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92 { |
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93 TRACE_INFO((_L("[Srvc %d] [ManSrvc] Request(Bearer 0x%04x status %d) discarded"), |
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94 iPlugin->ImplementationUid().iUid, aBearer, aStatus)) |
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95 return KErrNone; |
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96 } |
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97 } |
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98 } |
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99 |
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100 // else if the latest bearer status in this service plugin is different, |
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101 // Start ManageService() |
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102 if ( aStatus && !(iServiceStatus & aBearer) || |
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103 !aStatus && (iServiceStatus & aBearer)) |
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104 { |
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105 TLocodServiceRequest request(aBearer, aStatus); |
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106 request.iRequesting = ETrue; |
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107 TInt err = iRequests.Append(request); |
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108 TRACE_INFO((_L("[Srvc %d] [ManSrvc] Issue request(Bearer 0x%04x status %d)"), |
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109 iPlugin->ImplementationUid().iUid, aBearer, aStatus)) |
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110 if (!err) |
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111 { |
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112 iPlugin->ManageService(aBearer, aStatus); |
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113 } |
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114 return err; |
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115 } |
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116 |
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117 // else the latest bearer status in this service plugin is the same, |
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118 // do nothing |
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119 TRACE_INFO((_L("[Srvc %d] [ManSrvc] Request(Bearer 0x%04x status %d) discarded"), |
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120 iPlugin->ImplementationUid().iUid, aBearer, aStatus)) |
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121 return KErrNone; |
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122 } |
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123 |
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124 // --------------------------------------------------------------------------- |
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125 // Based on the status of bearer either the request is removed or a new manage |
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126 // service is issued |
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127 // --------------------------------------------------------------------------- |
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128 // |
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129 void CLocodService::ManageServiceCompleted(TLocodBearer aBearer, |
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130 TBool aStatus, TInt err) |
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131 { |
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132 TRACE_INFO((_L("[Srvc %d] [ManSrvc complete] (Bearer 0x%04x status %d) return %d"), |
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133 iPlugin->ImplementationUid().iUid, aBearer, aStatus, err)) |
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134 // Save the latest status of this bearer |
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135 if (!err) |
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136 { |
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137 if (aStatus) |
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138 { |
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139 iServiceStatus |= aBearer; |
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140 } |
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141 else |
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142 { |
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143 iServiceStatus &= (~aBearer); |
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144 } |
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145 TRACE_INFO((_L("[Srvc %d] [SrvcState 0x%04x]"), iPlugin->ImplementationUid().iUid, iServiceStatus)) |
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146 } |
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147 |
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148 // Find the completed request and remove it from the request list. |
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149 TInt count = iRequests.Count(); |
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150 for (TInt i = 0; i < count; i++) |
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151 { |
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152 if (iRequests[i].iBearer == aBearer && iRequests[i].iRequesting) |
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153 { |
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154 TRACE_INFO((_L("[Srvc %d] [ManSrvc completed] Remove completed request(Bearer 0x%04x status %d)"), |
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155 iPlugin->ImplementationUid().iUid, aBearer, iRequests[i].iStatus)) |
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156 iRequests.Remove(i); |
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157 break; |
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158 } |
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159 } |
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160 |
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161 // Find the next request and start ManageService if the status is changed. |
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162 count = iRequests.Count(); |
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163 for (TInt i = 0; i < count; i++) |
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164 { |
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165 if (iRequests[i].iBearer == aBearer) |
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166 { |
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167 if ( (iRequests[i].iStatus && !(iServiceStatus & aBearer)) || |
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168 (!iRequests[i].iStatus && (iServiceStatus & aBearer))) |
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169 { |
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170 iRequests[i].iRequesting = ETrue; |
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171 TRACE_INFO((_L("[Srvc %d] [ManSrvc completed] Issue buffered request(Bearer 0x%04x status %d)"), |
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172 iPlugin->ImplementationUid().iUid, aBearer, iRequests[i].iStatus)) |
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173 iPlugin->ManageService(iRequests[i].iBearer, iRequests[i].iStatus); |
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174 } |
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175 else |
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176 { |
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177 TRACE_INFO((_L("[Srvc %d] [ManSrvc completed] Remove buffered request(Bearer 0x%04x status %d)"), |
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178 iPlugin->ImplementationUid().iUid, aBearer, iRequests[i].iStatus)) |
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179 iRequests.Remove(i); |
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180 } |
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181 break; |
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182 } |
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183 } |
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184 } |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // return if there are request pending |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 TBool CLocodService::HasServiceToManage() const |
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191 { |
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192 return iRequests.Count(); |
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193 } |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // C++ default constructor |
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197 // --------------------------------------------------------------------------- |
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198 // |
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199 CLocodService::CLocodService(CLocodServicePlugin& aPlugin) : iPlugin(&aPlugin) |
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200 { |
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201 TRACE_FUNC_THIS |
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202 } |
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203 |
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204 // --------------------------------------------------------------------------- |
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205 // C++ 2nd phase construction |
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206 // --------------------------------------------------------------------------- |
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207 // |
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208 void CLocodService::ConstructL() |
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209 { |
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210 } |
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211 |
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212 // --------------------------------------------------------------------------- |
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213 // C++ default constructor |
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214 // --------------------------------------------------------------------------- |
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215 // |
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216 TLocodServiceRequest::TLocodServiceRequest(TLocodBearer aBearer, TBool aStatus) |
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217 : iBearer(aBearer), iStatus(aStatus), iRequesting(EFalse) |
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218 { |
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219 } |
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220 |
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