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1 // Copyright (c) 2006-2009 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 /** |
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17 @file |
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18 @released since 399 |
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19 */ |
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20 |
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21 #include <es_sock.h> |
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22 #include <comms-infras/es_connectionserv.h> |
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23 #include <comms-infras/es_availability.h> |
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24 #include <comms-infras/es_connectionservermessages.h> |
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25 #include "cs_connectionservimpl.h" |
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26 #include <connpref.h> |
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27 #include <comms-infras/ss_log.h> |
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28 #include <rsshared.h> |
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29 #include <es_ver.h> |
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30 |
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31 |
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32 using namespace ConnectionServ; |
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33 |
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34 CConnectionServImpl::CConnectionServImpl(RConnectionServ& aCS) : |
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35 iConnectionServ(aCS) |
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36 /** |
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37 Empty ctor |
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38 */ |
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39 { |
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40 LOG( ESockLog::Printf(_L8("CConnectionServImpl %08x: CConnectionServImpl() tid %d"), this, (TUint)RThread().Id()); ); |
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41 } |
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42 |
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43 |
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44 CConnectionServImpl* CConnectionServImpl::NewL(RConnectionServ& aCS) |
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45 { |
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46 LOG( ESockLog::Printf(_L8("CConnectionServImpl : NewL() tid %d"), (TUint)RThread().Id()); ); |
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47 CConnectionServImpl* inst = new(ELeave) CConnectionServImpl(aCS); |
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48 return inst; |
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49 } |
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50 |
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51 |
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52 CConnectionServImpl::~CConnectionServImpl() |
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53 /** |
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54 Closes the comms manager sub-session |
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55 |
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56 Clean up resources then drop to base class |
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57 */ |
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58 { |
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59 LOG( ESockLog::Printf(_L8("CConnectionServImpl%08x: ~CConnectionServImpl() tid %d"), this, (TUint)RThread().Id()); ); |
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60 |
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61 // Stop any active queries and remove them from the active scheduler. |
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62 |
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63 // This is a lot cheaper on ROM than implementing server-side code to handle shutdown |
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64 |
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65 CancelAccessPointStatusQuery(); |
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66 delete iAccessPointStatusRequest; |
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67 |
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68 CancelAccessPointNotification(); |
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69 delete iAccessPointNotificationRequest; |
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70 } |
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71 |
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72 |
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73 // |
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74 // Access Point Status |
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75 // |
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76 |
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77 void CConnectionServImpl::AccessPointStatusQuery(const CConnectionServParameterBundle& aQuery, CConnectionServParameterBundle& aResult, TRequestStatus& aStatus) |
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78 /** |
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79 Retrieve information from the Tier(s) specified in the Connect function about the availability of one or more services. |
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80 aQuery is an in parameter. A client adds a query parameter set to specify the Access Point or group of Access Points |
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81 it wishes to enquire about and adds one or more parameter sets to carry the information they are interested to retrieve |
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82 for each Access Points |
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83 aResult is an out parameter. The Connection Server populates this bundle with information about the access points that |
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84 matched the query. |
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85 The time taken to perform this action depends on the implementation in the stack plug-in that serves the request |
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86 */ |
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87 { |
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88 LOG( ESockLog::Printf(_L8("CConnectionServImpl %08x: AccessPointStatusQuery() tid %d"), this, (TUint)RThread().Id()); ); |
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89 |
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90 if(iAccessPointStatusRequest && iAccessPointStatusRequest->IsActive()) |
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91 { |
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92 // complete the request with failure |
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93 TRequestStatus* status = &aStatus; |
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94 User::RequestComplete(status, KErrInUse); |
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95 return; |
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96 } |
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97 |
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98 if(!iAccessPointStatusRequest) |
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99 { |
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100 // Delegate the call to the active object.. NewL creates and sets up the object.. |
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101 // We give it a pointer to this so it can call SendReceive. |
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102 // We only hold onto the pointer to it so we can send a cancel to it. |
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103 TRAPD(result, iAccessPointStatusRequest = CAccessPointStatusRequest::NewL(*this) ); |
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104 if(result) |
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105 { |
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106 // complete the request with failure |
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107 TRequestStatus* status = &aStatus; |
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108 User::RequestComplete(status, KErrArgument); |
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109 return; |
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110 } |
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111 } |
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112 |
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113 // Delegate the call to the active object.. NewL creates and sets up the object and |
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114 // adds it to the active scheduler. |
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115 // Once it's finished it'll take itself off and delete itself. |
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116 // We only hold onto the pointer to it so we can send a cancel to it. |
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117 iAccessPointStatusRequest->Start(aQuery,aResult,aStatus); |
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118 } |
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119 |
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120 |
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121 void CConnectionServImpl::CancelAccessPointStatusQuery() |
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122 /** |
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123 Tell the Connection Server we are cancelling our status query request. If no query is active, does nothing. |
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124 */ |
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125 { |
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126 LOG( ESockLog::Printf(_L8("CConnectionServImpl %08x: CancelAccessPointStatusQuery() tid %d"), this, (TUint)RThread().Id()); ); |
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127 if(iAccessPointStatusRequest) |
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128 { |
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129 // this will cause it to clean itself up (i.e. forward the cancel to the server then remove itself from the scheduler) |
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130 iAccessPointStatusRequest->Cancel(); |
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131 } |
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132 else |
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133 { |
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134 LOG( ESockLog::Printf(_L8("Tried to cancel inactive query. Ignoring.")); ); |
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135 } |
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136 } |
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137 |
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138 |
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139 // |
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140 // Access Point Notification |
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141 // |
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142 |
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143 void CConnectionServImpl::AccessPointNotification(const CConnectionServParameterBundle& aQuery, MAccessPointNotificationObserver& aObserver) |
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144 /** |
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145 As for GetAvailability, but will notify regularly of changes to availability of requested Access Point(s). |
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146 The aQuery defines a view of the access points, as soon as this view is established all its contents are reported |
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147 (i.e. we get initial status), after that, Access Points entering or leaving the view get reported to the observer. |
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148 Queueing of multiple events happens automatically server side |
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149 MAccessPointNotificationObserver contains a Notify(CConnectionServParameterBundle aResult) method and an Error() method to catch |
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150 errors from this function |
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151 */ |
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152 { |
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153 LOG( ESockLog::Printf(_L8("CConnectionServImpl %08x: AccessPointNotification() tid %d"), this, (TUint)RThread().Id()); ); |
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154 |
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155 if(iAccessPointNotificationRequest && iAccessPointNotificationRequest->IsActive()) |
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156 { |
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157 // complete the request with failure |
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158 aObserver.AccessPointNotificationError(KErrInUse); |
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159 return; |
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160 } |
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161 |
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162 if(!iAccessPointNotificationRequest) |
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163 { |
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164 // Delegate the call to the active object.. NewL creates and sets up the object.. |
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165 // We give it a pointer to this so it can call SendReceive. |
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166 // We only hold onto the pointer to it so we can send a cancel to it. |
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167 TRAPD(result, iAccessPointNotificationRequest = CAccessPointNotificationRequest::NewL(*this) ); |
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168 if(result) |
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169 { |
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170 // complete the request with failure |
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171 aObserver.AccessPointNotificationError(KErrArgument); |
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172 return; |
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173 } |
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174 } |
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175 |
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176 // Delegate the call to the active object.. NewL creates and sets up the object and |
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177 // adds it to the active scheduler. |
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178 // Once it's finished it'll take itself off the scheduler. |
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179 // We only hold onto the pointer to it so we can send a cancel to it. |
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180 iAccessPointNotificationRequest->Start(aQuery,aObserver); |
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181 } |
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182 |
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183 |
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184 void CConnectionServImpl::CancelAccessPointNotification() |
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185 /** |
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186 Tell the Connection Server we are cancelling our notification session. If no notification session is active, does nothing. |
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187 */ |
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188 { |
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189 LOG( ESockLog::Printf(_L8("CConnectionServImpl %08x: CancelAccessPointNotification() tid %d"), this, (TUint)RThread().Id()); ); |
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190 if(iAccessPointNotificationRequest && iAccessPointNotificationRequest->IsActive()) |
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191 { |
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192 // this will cause it to clean itself up (i.e. forward the cancel to the server then remove itself from the scheduler) |
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193 iAccessPointNotificationRequest->Cancel(); |
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194 } |
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195 else |
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196 { |
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197 LOG( ESockLog::Printf(_L8("Tried to cancel inactive query. Ignoring.")); ); |
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198 } |
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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 |
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204 |
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205 |
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206 |
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207 |
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208 CAccessPointStatusRequest::CAccessPointStatusRequest(CConnectionServImpl& aImpl): |
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209 CActive(CActive::EPriorityStandard), iConnectionServImpl(aImpl) |
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210 { |
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211 } |
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212 |
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213 CAccessPointStatusRequest::~CAccessPointStatusRequest() |
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214 { |
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215 iQueryBuffer.Close(); |
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216 iResultBuffer.Close(); |
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217 } |
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218 |
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219 void CAccessPointStatusRequest::ConstructL() |
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220 { |
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221 User::LeaveIfError(iQueryBuffer.Create(KInitialBufferSize)); |
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222 User::LeaveIfError(iResultBuffer.Create(KInitialBufferSize)); |
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223 } |
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224 |
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225 /* static*/ |
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226 CAccessPointStatusRequest* CAccessPointStatusRequest::NewL(CConnectionServImpl& aImpl) |
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227 { |
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228 CAccessPointStatusRequest *inst = new(ELeave) CAccessPointStatusRequest(aImpl); |
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229 inst->ConstructL(); |
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230 return inst; |
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231 } |
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232 |
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233 void CAccessPointStatusRequest::Start(const CConnectionServParameterBundle& aQuery, CConnectionServParameterBundle& aResult, TRequestStatus& aStatus) |
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234 /** |
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235 * |
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236 * |
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237 */ |
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238 { |
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239 CActiveScheduler::Add(this); |
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240 |
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241 iResult = &aResult; |
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242 iClientRequest = &aStatus; |
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243 |
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244 TInt ret = CConnectionServImpl::EnsureBufferIsBigEnough(iQueryBuffer,aQuery.Length()); |
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245 |
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246 if(ret == KErrNone) |
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247 { |
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248 iQueryBuffer.SetLength(0); |
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249 ret = aQuery.Store(iQueryBuffer); |
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250 } |
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251 |
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252 if (ret != KErrNone) |
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253 { |
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254 LOG( ESockLog::Printf(_L8("CAccessPointStatusRequest %08x: Start() tid %d failed when storing parameter bundle in serialization buffer: %d"), this, (TUint)RThread().Id(), ret); ); |
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255 CompleteClientRequest(ret); |
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256 return; |
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257 } |
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258 |
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259 iSentRequest = ECMAccessPointStatusQuery_DoThenGetResultOrSize; |
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260 iConnectionServImpl.SendReceive(iSentRequest, TIpcArgs(&iQueryBuffer, &iResultBuffer),iStatus); |
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261 SetActive(); |
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262 } |
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263 |
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264 void CAccessPointStatusRequest::RunL() |
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265 { |
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266 TInt result = iStatus.Int(); |
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267 if(result == KErrNone) |
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268 { |
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269 // all is well. let's deserialise result buffer into result bundle.. |
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270 result = iResult->Load(iResultBuffer); |
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271 } |
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272 else |
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273 if(result > KErrNone && // result held error or required buffer length |
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274 iSentRequest == ECMAccessPointStatusQuery_DoThenGetResultOrSize ) |
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275 { |
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276 // ok so it finished but buffer isn't big enough.. so (re)allocate and re-call |
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277 result = CConnectionServImpl::EnsureBufferIsBigEnough(iResultBuffer,result); |
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278 |
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279 if(result == KErrNone) |
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280 { |
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281 iSentRequest = ECMAccessPointStatusQuery_GetResult; |
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282 iConnectionServImpl.SendReceive(iSentRequest, TIpcArgs(&iResultBuffer),iStatus); |
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283 SetActive(); |
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284 return; |
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285 } |
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286 } |
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287 |
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288 CompleteClientRequest(result); |
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289 } |
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290 |
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291 TInt CConnectionServImpl::EnsureBufferIsBigEnough(RBuf8& aBufToCheck, TUint aSize) |
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292 { |
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293 return (aBufToCheck.MaxSize() < aSize) ? aBufToCheck.ReAlloc(aSize) : KErrNone ; |
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294 } |
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295 |
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296 |
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297 void CAccessPointStatusRequest::CompleteClientRequest(TInt aError) |
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298 { |
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299 User::RequestComplete(iClientRequest, aError); |
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300 // CActiveScheduler::Remove(this); |
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301 } |
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302 |
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303 void CAccessPointStatusRequest::DoCancel() |
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304 { |
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305 iSentRequest = ECMAccessPointStatusQuery_Cancel; |
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306 iConnectionServImpl.SendReceive(iSentRequest); |
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307 CompleteClientRequest(KErrCancel); |
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308 } |
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309 |
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310 TInt CAccessPointStatusRequest::RunError(TInt aError) |
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311 { |
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312 CompleteClientRequest(aError); |
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313 |
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314 // Error has gone to client.. No need to error the ActiveScheduler |
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315 return KErrNone; |
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316 } |
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317 |
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318 |
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319 |
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320 |
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321 |
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322 CAccessPointNotificationRequest::CAccessPointNotificationRequest(CConnectionServImpl& aImpl): |
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323 CActive(CActive::EPriorityStandard), iConnectionServImpl(aImpl) |
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324 { |
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325 } |
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326 |
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327 void CAccessPointNotificationRequest::ConstructL() |
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328 { |
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329 User::LeaveIfError(iResultBuffer.Create(KInitialBufferSize)); |
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330 } |
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331 |
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332 /* static*/ |
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333 CAccessPointNotificationRequest* CAccessPointNotificationRequest::NewL(CConnectionServImpl& aImpl) |
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334 { |
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335 CAccessPointNotificationRequest *inst = new(ELeave) CAccessPointNotificationRequest(aImpl); |
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336 inst->ConstructL(); |
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337 return inst; |
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338 } |
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339 |
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340 void CAccessPointNotificationRequest::Start(const CConnectionServParameterBundle& aQuery, MAccessPointNotificationObserver& aObserver) |
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341 { |
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342 CActiveScheduler::Add(this); |
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343 |
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344 iObserver = &aObserver; |
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345 |
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346 TInt ret = CConnectionServImpl::EnsureBufferIsBigEnough(iQueryBuffer,aQuery.Length()); |
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347 |
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348 if(ret == KErrNone) |
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349 { |
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350 iQueryBuffer.SetLength(0); |
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351 ret = aQuery.Store(iQueryBuffer); |
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352 } |
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353 |
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354 if (ret != KErrNone) |
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355 { |
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356 LOG( ESockLog::Printf(_L8("CAccessPointNotificationRequest %08x: Start() tid %d failed when storing parameter bundle in serialization buffer: %d"), this, (TUint)RThread().Id(), ret); ); |
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357 iObserver->AccessPointNotificationError(KErrNoMemory); |
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358 return; |
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359 } |
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360 |
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361 iSentRequest = ECMAccessPointNotification_SetupThenAwaitThenGetResultOrSize; |
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362 iConnectionServImpl.SendReceive(iSentRequest, TIpcArgs(&iQueryBuffer, &iResultBuffer),iStatus); |
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363 SetActive(); |
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364 } |
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365 |
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366 |
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367 void CAccessPointNotificationRequest::DoCancel() |
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368 { |
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369 iSentRequest = ECMAccessPointNotification_Cancel; |
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370 iConnectionServImpl.SendReceive(iSentRequest); |
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371 iObserver->AccessPointNotificationError(KErrCancel); |
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372 } |
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373 |
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374 void CAccessPointNotificationRequest::RunL() |
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375 { |
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376 TInt result = iStatus.Int(); |
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377 if(result == KErrNone) |
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378 { |
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379 // all is well. let's deserialise result buffer into result bundle.. |
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380 CConnectionServParameterBundle *bundle = CConnectionServParameterBundle::LoadL(iResultBuffer); |
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381 |
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382 // issue next request immediately |
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383 iSentRequest = ECMAccessPointNotification_AwaitThenGetResultOrSize; |
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384 iConnectionServImpl.SendReceive(iSentRequest, TIpcArgs(0,&iResultBuffer),iStatus); |
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385 SetActive(); |
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386 |
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387 // report notification to observer |
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388 iObserver->AccessPointNotification(bundle); |
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389 return; |
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390 } |
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391 else |
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392 if(result > KErrNone && // result held error or required buffer length |
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393 iSentRequest == ECMAccessPointNotification_SetupThenAwaitThenGetResultOrSize || |
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394 iSentRequest == ECMAccessPointNotification_AwaitThenGetResultOrSize) |
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395 { |
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396 // ok so it finished but buffer isn't big enough.. so (re)allocate and re-call |
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397 result = CConnectionServImpl::EnsureBufferIsBigEnough(iResultBuffer,result); |
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398 |
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399 if(result == KErrNone) |
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400 { |
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401 iSentRequest = ECMAccessPointNotification_GetResult; |
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402 iConnectionServImpl.SendReceive(iSentRequest, TIpcArgs(0,&iResultBuffer),iStatus); |
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403 SetActive(); |
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404 return; |
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405 } |
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406 } |
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407 |
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408 iObserver->AccessPointNotificationError(result); |
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409 } |
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410 |
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411 TInt CAccessPointNotificationRequest::RunError(TInt aError) |
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412 { |
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413 iObserver->AccessPointNotificationError(aError); |
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414 |
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415 // Error has gone to client.. No need to error the ActiveScheduler |
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416 return KErrNone; |
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417 } |
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418 |
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419 |