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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: Stream component async state class implementation. |
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15 * |
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16 */ |
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17 |
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18 #include "nspnatfwasyncstate.h" |
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19 #include "nspdefs.h" |
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20 |
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21 // ======== MEMBER FUNCTIONS ======== |
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22 // --------------------------------------------------------------------------- |
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23 // CNSPNATFWAsyncState::CNSPNATFWAsyncState |
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24 // --------------------------------------------------------------------------- |
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25 // |
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26 CNSPNATFWAsyncState::CNSPNATFWAsyncState() |
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27 : iCurrentState( ENATFWIdle ) |
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28 { |
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29 } |
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30 |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // CNSPNATFWAsyncState::Construct(copy) |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 void CNSPNATFWAsyncState::Construct( const CNSPNATFWAsyncState& aState ) |
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37 { |
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38 iCurrentState = aState.iCurrentState; |
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39 } |
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40 |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // CNSPNATFWAsyncState::NewL |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 CNSPNATFWAsyncState* CNSPNATFWAsyncState::NewL() |
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47 { |
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48 CNSPNATFWAsyncState* self = CNSPNATFWAsyncState::NewLC(); |
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49 CleanupStack::Pop( self ); |
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50 return self; |
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51 } |
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52 |
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53 |
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54 // --------------------------------------------------------------------------- |
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55 // CNSPNATFWAsyncState::NewLC |
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56 // --------------------------------------------------------------------------- |
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57 // |
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58 CNSPNATFWAsyncState* CNSPNATFWAsyncState::NewLC() |
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59 { |
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60 CNSPNATFWAsyncState* self = new ( ELeave ) CNSPNATFWAsyncState(); |
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61 CleanupStack::PushL( self ); |
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62 return self; |
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63 } |
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64 |
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65 |
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66 // --------------------------------------------------------------------------- |
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67 // CNSPNATFWAsyncState::NewL(copy) |
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68 // --------------------------------------------------------------------------- |
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69 // |
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70 CNSPNATFWAsyncState* CNSPNATFWAsyncState::NewL( |
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71 const CNSPNATFWAsyncState& aState ) |
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72 { |
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73 CNSPNATFWAsyncState* self = CNSPNATFWAsyncState::NewLC( aState ); |
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74 CleanupStack::Pop( self ); |
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75 return self; |
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76 } |
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77 |
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78 |
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79 // --------------------------------------------------------------------------- |
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80 // CNSPNATFWAsyncState::NewLC(copy) |
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81 // --------------------------------------------------------------------------- |
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82 // |
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83 CNSPNATFWAsyncState* CNSPNATFWAsyncState::NewLC( |
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84 const CNSPNATFWAsyncState& aState ) |
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85 { |
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86 CNSPNATFWAsyncState* self = new ( ELeave ) CNSPNATFWAsyncState(); |
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87 CleanupStack::PushL( self ); |
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88 self->Construct( aState ); |
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89 return self; |
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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 // CNSPNATFWAsyncState::~CNSPNATFWAsyncState |
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95 // --------------------------------------------------------------------------- |
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96 // |
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97 CNSPNATFWAsyncState::~CNSPNATFWAsyncState() |
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98 { |
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99 } |
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100 |
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101 |
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102 // --------------------------------------------------------------------------- |
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103 // CNSPNATFWAsyncState::CheckState |
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104 // --------------------------------------------------------------------------- |
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105 // |
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106 TInt CNSPNATFWAsyncState::CheckState( TNATFWEvent aEvent ) const |
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107 { |
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108 TInt error( KErrNone ); |
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109 |
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110 switch( aEvent ) |
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111 { |
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112 case ENATFWEventFetchCand: |
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113 case ENATFWEventPerformChecks: |
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114 { |
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115 if ( ENATFWIdle == iCurrentState ) |
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116 { |
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117 error = KErrNone; |
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118 } |
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119 else |
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120 { |
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121 error = KErrArgument; |
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122 } |
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123 |
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124 break; |
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125 } |
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126 |
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127 case ENATFWEventRecvAct: |
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128 { |
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129 if ( ENATFWIdle == iCurrentState || |
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130 ENATFWSend == iCurrentState || |
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131 ENATFWSendRecv == iCurrentState ) |
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132 { |
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133 error = KErrNone; |
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134 } |
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135 else |
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136 { |
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137 error = KErrArgument; |
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138 } |
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139 |
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140 break; |
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141 } |
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142 |
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143 case ENATFWEventSendAct: |
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144 { |
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145 if ( ENATFWIdle == iCurrentState || |
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146 ENATFWRecv == iCurrentState || |
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147 ENATFWSendRecv == iCurrentState ) |
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148 { |
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149 error = KErrNone; |
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150 } |
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151 else |
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152 { |
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153 error = KErrArgument; |
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154 } |
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155 |
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156 break; |
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157 } |
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158 |
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159 case ENATFWEventRecvDeAct: |
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160 { |
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161 if ( ENATFWIdle == iCurrentState || |
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162 ENATFWRecv == iCurrentState || |
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163 ENATFWSendRecv == iCurrentState ) |
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164 { |
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165 error = KErrNone; |
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166 } |
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167 else |
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168 { |
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169 error = KErrArgument; |
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170 } |
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171 |
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172 break; |
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173 } |
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174 |
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175 case ENATFWEventSendDeAct: |
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176 { |
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177 if ( ENATFWIdle == iCurrentState || |
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178 ENATFWSend == iCurrentState || |
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179 ENATFWSendRecv == iCurrentState ) |
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180 { |
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181 error = KErrNone; |
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182 } |
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183 else |
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184 { |
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185 error = KErrArgument; |
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186 } |
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187 |
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188 break; |
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189 } |
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190 |
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191 default: |
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192 { |
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193 error = KErrNotSupported; |
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194 break; |
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195 } |
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196 } |
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197 |
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198 return error; |
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199 } |
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200 |
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201 |
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202 // --------------------------------------------------------------------------- |
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203 // CNSPNATFWAsyncState::CheckStateL |
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204 // --------------------------------------------------------------------------- |
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205 // |
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206 void CNSPNATFWAsyncState::CheckStateL( TNATFWEvent aEvent ) const |
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207 { |
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208 User::LeaveIfError( CheckState( aEvent ) ); |
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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 // CNSPNATFWAsyncState::ChangeState |
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214 // --------------------------------------------------------------------------- |
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215 // |
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216 TInt CNSPNATFWAsyncState::ChangeState( TNATFWEvent aEvent ) |
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217 { |
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218 NSPLOG_INT( "CNSPNATFWAsyncState::ChangeState(),curr state:", iCurrentState ) |
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219 |
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220 TInt error( KErrNone ); |
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221 |
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222 switch( aEvent ) |
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223 { |
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224 case ENATFWEventFetchCand: |
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225 { |
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226 if ( ENATFWIdle == iCurrentState ) |
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227 { |
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228 iCurrentState = ENATFWFetchCand; |
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229 error = KErrNone; |
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230 } |
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231 else |
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232 { |
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233 error = KErrArgument; |
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234 } |
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235 |
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236 break; |
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237 } |
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238 |
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239 case ENATFWEventPerformChecks: |
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240 { |
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241 if ( ENATFWIdle == iCurrentState ) |
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242 { |
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243 iCurrentState = ENATFWCandChecks; |
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244 error = KErrNone; |
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245 } |
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246 else |
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247 { |
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248 error = KErrArgument; |
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249 } |
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250 |
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251 break; |
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252 } |
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253 |
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254 case ENATFWEventRecvAct: |
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255 { |
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256 if ( ENATFWIdle == iCurrentState ) |
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257 { |
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258 iCurrentState = ENATFWRecv; |
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259 error = KErrNone; |
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260 } |
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261 else if ( ENATFWSend == iCurrentState ) |
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262 { |
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263 iCurrentState = ENATFWSendRecv; |
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264 error = KErrNone; |
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265 } |
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266 else |
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267 { |
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268 error = KErrArgument; |
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269 } |
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270 |
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271 break; |
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272 } |
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273 |
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274 case ENATFWEventSendAct: |
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275 { |
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276 if ( ENATFWIdle == iCurrentState ) |
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277 { |
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278 iCurrentState = ENATFWSend; |
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279 error = KErrNone; |
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280 } |
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281 else if ( ENATFWRecv == iCurrentState ) |
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282 { |
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283 iCurrentState = ENATFWSendRecv; |
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284 error = KErrNone; |
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285 } |
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286 else |
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287 { |
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288 error = KErrArgument; |
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289 } |
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290 |
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291 break; |
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292 } |
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293 |
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294 case ENATFWEventRecvDeAct: |
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295 { |
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296 if ( ENATFWIdle == iCurrentState ) |
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297 { |
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298 error = KErrNone; |
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299 } |
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300 else if ( ENATFWRecv == iCurrentState ) |
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301 { |
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302 iCurrentState = ENATFWIdle; |
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303 error = KErrNone; |
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304 } |
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305 else if ( ENATFWSendRecv == iCurrentState ) |
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306 { |
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307 iCurrentState = ENATFWSend; |
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308 error = KErrNone; |
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309 } |
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310 else |
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311 { |
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312 error = KErrArgument; |
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313 } |
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314 |
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315 break; |
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316 } |
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317 |
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318 case ENATFWEventSendDeAct: |
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319 { |
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320 if ( ENATFWIdle == iCurrentState ) |
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321 { |
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322 error = KErrNone; |
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323 } |
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324 else if ( ENATFWSend == iCurrentState ) |
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325 { |
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326 iCurrentState = ENATFWIdle; |
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327 error = KErrNone; |
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328 } |
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329 else if ( ENATFWSendRecv == iCurrentState ) |
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330 { |
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331 iCurrentState = ENATFWRecv; |
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332 error = KErrNone; |
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333 } |
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334 else |
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335 { |
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336 error = KErrArgument; |
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337 } |
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338 |
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339 break; |
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340 } |
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341 |
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342 default: |
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343 { |
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344 error = KErrNotSupported; |
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345 break; |
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346 } |
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347 } |
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348 |
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349 NSPLOG_INT( |
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350 "CNSPNATFWAsyncState::ChangeState(),new state :", iCurrentState ) |
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351 |
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352 return error; |
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353 } |
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354 |
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355 |
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356 // --------------------------------------------------------------------------- |
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357 // CNSPNATFWAsyncState::ChangeStateL |
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358 // --------------------------------------------------------------------------- |
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359 // |
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360 void CNSPNATFWAsyncState::ChangeStateL( TNATFWEvent aEvent ) |
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361 { |
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362 User::LeaveIfError( ChangeState( aEvent ) ); |
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363 } |
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364 |
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365 |
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366 // --------------------------------------------------------------------------- |
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367 // CNSPNATFWAsyncState::Continue |
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368 // --------------------------------------------------------------------------- |
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369 // |
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370 TBool CNSPNATFWAsyncState::Continue() |
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371 { |
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372 NSPLOG_INT( "CNSPNATFWAsyncState::Continue(),curr state:", iCurrentState ) |
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373 |
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374 TBool readyToContinue = EFalse; |
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375 |
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376 switch( iCurrentState ) |
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377 { |
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378 case ENATFWIdle: |
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379 { |
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380 readyToContinue = ETrue; |
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381 break; |
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382 } |
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383 case ENATFWFetchCand: |
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384 case ENATFWCandChecks: |
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385 { |
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386 readyToContinue = ETrue; |
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387 iCurrentState = ENATFWIdle; |
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388 break; |
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389 } |
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390 case ENATFWSendRecv: |
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391 { |
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392 readyToContinue = ETrue; |
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393 break; |
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394 } |
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395 default: |
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396 { |
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397 // NOP |
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398 } |
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399 } |
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400 |
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401 NSPLOG_INT( "CNSPNATFWAsyncState::Continue(),new state :", iCurrentState ) |
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402 return readyToContinue; |
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403 } |
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404 |
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405 |
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406 // end of file |