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1 // Copyright (c) 2008-2009 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 the License "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 @internalTechnology |
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19 */ |
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20 |
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21 #include <e32base.h> |
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22 |
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23 #include "msctypes.h" |
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24 #include "shared.h" |
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25 #include "msgservice.h" |
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26 #include "cusbhostmslogicalunit.h" |
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27 #include "cusbhostmsdevice.h" |
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28 #include "cusbhostmsserver.h" |
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29 #include "usbmshostpanic.h" |
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30 #include "cusbhostmsdevicethread.h" |
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31 #include "cusbhostmssession.h" |
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32 #include "msdebug.h" |
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33 #include "debug.h" |
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34 |
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35 /** Construct a Symbian OS session object. |
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36 |
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37 param aServer Service the session will be a member of |
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38 param aMessage The message from the client. |
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39 return A new CUsbHostMsSession object |
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40 */ |
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41 CUsbHostMsSession* CUsbHostMsSession::NewL(CUsbHostMsServer& aServer) |
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42 { |
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43 __MSFNSLOG |
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44 CUsbHostMsSession* r = new (ELeave) CUsbHostMsSession(aServer); |
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45 CleanupStack::PushL(r); |
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46 r->ConstructL(); |
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47 CleanupStack::Pop(); |
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48 return r; |
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49 } |
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50 |
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51 /** |
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52 Constructor. |
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53 |
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54 param aServer Service the session will be a member of |
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55 */ |
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56 CUsbHostMsSession::CUsbHostMsSession(CUsbHostMsServer& aServer) |
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57 : iUsbHostMsServer(aServer) |
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58 { |
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59 __MSFNLOG |
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60 } |
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61 |
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62 |
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63 /** |
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64 2nd Phase Construction. |
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65 */ |
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66 void CUsbHostMsSession::ConstructL() |
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67 { |
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68 __MSFNLOG |
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69 iUsbHostMsServer.IncrementSessionCount(); |
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70 __HOSTPRINT1(_L("\tiSessionCount: %d\n"), iUsbHostMsServer.SessionCount()); |
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71 } |
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72 |
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73 |
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74 /** |
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75 Destructor. |
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76 */ |
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77 CUsbHostMsSession::~CUsbHostMsSession() |
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78 { |
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79 __MSFNLOG |
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80 |
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81 iUsbHostMsServer.DecrementSessionCount(); |
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82 iThread.Close(); |
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83 __HOSTPRINT1(_L("\tClosed a session -> iSessionCount: %d\n"), iUsbHostMsServer.SessionCount()); |
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84 } |
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85 |
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86 /** |
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87 Called when a message is received from the client. |
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88 |
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89 param aMessage Message received from the client |
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90 */ |
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91 void CUsbHostMsSession::ServiceL(const RMessage2& aMessage) |
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92 { |
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93 __MSFNLOG |
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94 DispatchMessageL(aMessage); |
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95 } |
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96 |
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97 |
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98 /** |
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99 Handles the request (in the form of a message) received from the client |
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100 |
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101 param aMessage The received message |
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102 */ |
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103 void CUsbHostMsSession::DispatchMessageL(const RMessage2& aMessage) |
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104 { |
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105 __MSFNLOG |
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106 TInt r = KErrNone; |
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107 switch (aMessage.Function()) |
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108 { |
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109 case EUsbHostMsRegisterInterface: |
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110 TRAP(r, CreateDeviceThreadL(aMessage)); |
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111 if(r != KErrNone) |
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112 { |
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113 aMessage.Complete(r); |
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114 return; |
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115 } |
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116 break; |
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117 /* If it is a cleanup then we need to delete the iDeviceThread */ |
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118 case EUsbHostMsFinalCleanup: |
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119 if(iDeviceThread->IsActive()) |
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120 { |
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121 iThread.RequestComplete(iClientStatus, KErrSessionClosed); |
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122 } |
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123 |
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124 delete iDeviceThread; |
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125 iThread.Kill(KErrNone); |
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126 aMessage.Complete(KErrNone); |
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127 return; |
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128 default: |
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129 break; |
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130 } |
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131 |
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132 __ASSERT_DEBUG(iDeviceThread != NULL, User::Panic(KUsbMsHostPanicCat, EDeviceThreadDoesNotExist)); |
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133 |
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134 r = iDeviceThread->QueueMsg(aMessage); |
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135 if (r != KErrNone) |
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136 { |
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137 aMessage.Complete(r); |
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138 return; |
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139 } |
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140 |
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141 if (iClientStatus && *iClientStatus == KRequestPending) |
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142 { |
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143 __HOSTPRINT(_L("Signaling device thread to handle message")); |
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144 iThread.RequestComplete(iClientStatus, KErrNone); |
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145 } |
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146 } |
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147 |
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148 |
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149 void CUsbHostMsSession::CreateDeviceThreadL(const RMessage2& aMessage) |
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150 { |
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151 __MSFNLOG |
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152 THostMassStorageConfig msDeviceConfig; |
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153 TPtr8 ptr((TUint8*)&msDeviceConfig,sizeof(THostMassStorageConfig)); |
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154 |
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155 aMessage.ReadL(0, ptr); |
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156 __HOSTPRINT1(_L("EUsbHostMsRegisterInterface Token=%d "), msDeviceConfig.iInterfaceToken); |
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157 |
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158 TBuf<20> nameBuf; |
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159 nameBuf.Format(_L("Host Ms Thread%d"), msDeviceConfig.iInterfaceToken); |
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160 iDeviceThread = CUsbHostMsDeviceThread::NewL(*this, msDeviceConfig.iInterfaceToken); |
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161 |
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162 RHeap* h = (RHeap*)&User::Allocator(); |
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163 TInt maxsize = h->MaxLength(); // loader heap max size = file server heap max size |
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164 const TUint KHeapMinSize = 2048; |
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165 |
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166 TInt r = iThread.Create(nameBuf, CUsbHostMsDeviceThread::Entry, KDefaultStackSize, KHeapMinSize, maxsize, iDeviceThread); |
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167 if(r != KErrNone) |
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168 { |
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169 delete iDeviceThread; |
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170 iDeviceThread = NULL; |
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171 User::Leave(r); |
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172 } |
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173 iThread.SetPriority(EPriorityAbsoluteBackgroundNormal); |
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174 TRequestStatus status; |
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175 iThread.Rendezvous(status); |
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176 iThread.Resume(); |
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177 User::WaitForRequest(status); |
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178 if(status != KErrNone) |
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179 { |
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180 if(iDeviceThread->IsActive()) |
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181 { |
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182 iThread.RequestComplete(iClientStatus, KErrSessionClosed); |
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183 } |
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184 iDeviceThread->Cancel(); |
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185 delete iDeviceThread; |
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186 iDeviceThread = NULL; |
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187 iThread.Kill(KErrNone); |
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188 User::Leave(status.Int()); |
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189 } |
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190 } |
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191 |
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192 |
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193 |
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194 void CUsbHostMsSession::MessageRequest(TRequestStatus& aStatus) |
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195 { |
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196 __MSFNLOG |
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197 iClientStatus = &aStatus; |
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198 *iClientStatus = KRequestPending; |
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199 } |