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1 /* |
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2 * Copyright (c) 2004 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: Playback server |
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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 <e32std.h> |
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20 #include <e32svr.h> |
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21 #ifdef RD_TSP_CLIENT_MAPPER |
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22 #include <tspclientmapper.h> |
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23 #endif |
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24 #include <mpxclientlist.h> |
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25 #include <mpxpluginmonitor.h> |
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26 #include <mpxlog.h> |
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27 #include "mpxplaybackserverdefs.h" |
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28 #include "mpxplaybackengine.h" |
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29 #include "mpxplaybackserversession.h" |
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30 #include "mpxplaybackserver.h" |
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31 |
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32 // CONSTANTS |
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33 |
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34 // Server Security Policy |
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35 const TUint KMPXPlaybackServerRangeCount = 2; |
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36 const TInt KMPXPlaybackServerRanges[KMPXPlaybackServerRangeCount] = |
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37 { |
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38 0, //range is [0-EPbsServerOpEnd) |
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39 EPbsServerOpEnd, //range is [EPbsServerOpEnd-KMaxTInt] |
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40 }; |
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41 const TUint8 KMPXPlaybackSeverElementsIndex[KMPXPlaybackServerRangeCount] = |
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42 { |
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43 0, //applies to range [0-EPbsServerOpEnd) |
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44 CPolicyServer::ENotSupported, //applies to range [EPbsServerOpEnd-KMaxTInt] |
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45 }; |
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46 |
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47 const CPolicyServer::TPolicyElement KMPXPlaybackServerPolicyElements[] = |
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48 { |
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49 {_INIT_SECURITY_POLICY_C1(ECapability_None), |
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50 CPolicyServer::EFailClient}, |
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51 }; |
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52 |
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53 const CPolicyServer::TPolicy KMPXPlaybackServerPolicy = |
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54 { |
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55 CPolicyServer::EAlwaysPass, //specifies all connect attempts should pass |
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56 KMPXPlaybackServerRangeCount, |
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57 KMPXPlaybackServerRanges, |
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58 KMPXPlaybackSeverElementsIndex, |
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59 KMPXPlaybackServerPolicyElements, |
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60 }; |
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61 |
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62 // ---------------------------------------------------------------------------- |
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63 // Start playback server |
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64 // |
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65 LOCAL_C void StartServerL() |
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66 { |
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67 User::LeaveIfError(User::RenameThread(KMPXPlaybackServerName)); |
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68 CActiveScheduler* scheduler = new(ELeave)CActiveScheduler; |
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69 CleanupStack::PushL(scheduler); |
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70 CActiveScheduler::Install(scheduler); |
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71 CMPXPlaybackServer* server = CMPXPlaybackServer::NewL(); |
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72 CleanupStack::PushL(server); |
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73 RProcess::Rendezvous(KErrNone); |
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74 CActiveScheduler::Start(); |
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75 CActiveScheduler::Install(NULL); |
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76 CleanupStack::PopAndDestroy(server); |
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77 CleanupStack::PopAndDestroy(scheduler); |
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78 } |
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79 |
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80 // ============================ MEMBER FUNCTIONS ============================== |
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81 |
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82 // ---------------------------------------------------------------------------- |
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83 // Two-phased constructor. |
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84 // ---------------------------------------------------------------------------- |
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85 // |
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86 CMPXPlaybackServer* CMPXPlaybackServer::NewL() |
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87 { |
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88 CMPXPlaybackServer *pS = new(ELeave) CMPXPlaybackServer( |
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89 CActive::EPriorityStandard, |
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90 KMPXPlaybackServerPolicy); |
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91 CleanupStack::PushL(pS); |
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92 pS->ConstructL(); |
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93 CleanupStack::Pop(pS); |
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94 return pS; |
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95 } |
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96 |
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97 // ---------------------------------------------------------------------------- |
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98 // C++ constructor can NOT contain any code that might leave. |
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99 // ---------------------------------------------------------------------------- |
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100 // |
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101 CMPXPlaybackServer::CMPXPlaybackServer(TInt aPriority, const TPolicy &aPolicy) |
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102 : CPolicyServer(aPriority, aPolicy) |
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103 {} |
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104 |
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105 // ---------------------------------------------------------------------------- |
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106 // Destructor |
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107 // ---------------------------------------------------------------------------- |
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108 // |
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109 CMPXPlaybackServer::~CMPXPlaybackServer() |
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110 { |
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111 iPlayers.ResetAndDestroy(); |
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112 delete iPluginMonitor; |
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113 #ifdef RD_TSP_CLIENT_MAPPER |
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114 delete iClientMapper; |
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115 #endif |
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116 } |
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117 |
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118 // ---------------------------------------------------------------------------- |
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119 // Symbian 2nd phase constructor can leave. |
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120 // ---------------------------------------------------------------------------- |
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121 // |
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122 void CMPXPlaybackServer::ConstructL() |
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123 { |
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124 StartL(KMPXPlaybackServerName); |
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125 iPluginMonitor = CMPXPluginMonitor::NewL(KMPXPlaybackInterfaceUid); |
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126 #ifdef RD_TSP_CLIENT_MAPPER |
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127 iClientMapper = CTspClientMapper::NewL(); |
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128 #endif |
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129 } |
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130 |
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131 // ---------------------------------------------------------------------------- |
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132 // Increments number of sessions this server holds |
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133 // ---------------------------------------------------------------------------- |
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134 // |
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135 void CMPXPlaybackServer::AddClient() |
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136 { |
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137 iClients++; |
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138 } |
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139 |
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140 |
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141 // ---------------------------------------------------------------------------- |
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142 // Find the player that has client aName, and remove it from that player; if |
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143 // that player has no clients, then delete that player. If the server has no |
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144 // more client sessions, then stop the server. |
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145 // ---------------------------------------------------------------------------- |
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146 // |
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147 void CMPXPlaybackServer::RemoveClient(const CMPXMessageQueue& aMsgQueue) |
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148 { |
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149 MPX_DEBUG2("CMPXPlaybackServer::RemoveClient from %d", |
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150 iPlayers.Count()); |
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151 for (TInt i=iPlayers.Count();--i>=0;) |
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152 { |
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153 CMPXPlaybackEngine* p=iPlayers[i]; |
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154 CMPXClientList* cl=p->ClientList(); |
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155 TInt index(cl->Find(aMsgQueue)); |
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156 if (KErrNotFound != index) |
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157 { |
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158 MPX_DEBUG1("CMPXPlaybackServer::RemoveClient found client"); |
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159 cl->RemoveClient(index); |
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160 if (cl->ClientCount()==0) |
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161 { |
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162 MPX_DEBUG1("CMPXPlaybackServer::RemoveClient delete a player"); |
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163 delete p; |
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164 iPlayers.Remove(i); |
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165 } |
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166 break; |
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167 } |
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168 } |
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169 iClients--; |
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170 ASSERT(iClients>=0); |
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171 if (iClients==0) |
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172 { |
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173 CActiveScheduler::Stop(); |
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174 } |
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175 } |
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176 |
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177 // ---------------------------------------------------------------------------- |
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178 // Return last active process id |
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179 // ---------------------------------------------------------------------------- |
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180 // |
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181 TProcessId CMPXPlaybackServer::LastActiveProcessId() |
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182 { |
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183 TProcessId id(KNullProcessId); |
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184 if (iPlayers.Count()) |
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185 { |
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186 id = iPlayers[0]->LastActiveProcessId(); |
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187 } |
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188 return id; |
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189 } |
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190 |
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191 // ---------------------------------------------------------------------------- |
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192 // Creates a brand new player to the player list with this client name and TID, |
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193 // and whether it's the music player. |
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194 // ---------------------------------------------------------------------------- |
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195 // |
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196 CMPXPlaybackEngine* CMPXPlaybackServer::AddNewPlayerL( |
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197 TThreadId aClientId, |
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198 const TUid& aModeId, |
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199 CMPXMessageQueue* aMsgQueue, |
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200 const TInt aCategory) |
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201 { |
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202 CMPXPlaybackEngine* p = |
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203 CMPXPlaybackEngine::NewL(*iPluginMonitor,*this,this,aModeId, aCategory); |
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204 MPX_DEBUG2("CMPXPlaybackServer::AddNewPlayerL 0x%08x", p); |
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205 CleanupStack::PushL(p); |
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206 p->ClientList()->AddClientL(aClientId, aModeId.iUid, aMsgQueue, aCategory); |
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207 iPlayers.AppendL(p); |
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208 CleanupStack::Pop(p); |
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209 return p; |
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210 } |
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211 |
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212 // ---------------------------------------------------------------------------- |
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213 // Create player according to the mode: |
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214 // ---------------------------------------------------------------------------- |
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215 // |
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216 CMPXPlaybackEngine* CMPXPlaybackServer::CreatePlayerL( |
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217 const TUid& aModeId, |
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218 const TInt aCategory, |
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219 TThreadId aClientId, |
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220 CMPXMessageQueue* aMsgQueue) |
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221 { |
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222 CMPXPlaybackEngine* p=NULL; |
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223 if (aModeId == KPbModeDefault) |
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224 { |
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225 // Add the new client to the player created by another client running |
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226 // in the same thread. If there isn't one, then create the first player |
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227 // for this thread |
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228 // |
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229 p=AddToDefaultPlayerL(aClientId,aMsgQueue,aCategory); |
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230 if(!p) |
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231 { |
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232 |
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233 p=AddNewPlayerL(aClientId, aModeId, aMsgQueue, aCategory); |
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234 } |
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235 } |
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236 // |
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237 else if (aModeId == KPbModeNewPlayer) |
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238 { |
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239 // |
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240 // Create a brand new player for this client |
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241 // |
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242 p=AddNewPlayerL(aClientId, aModeId, aMsgQueue, aCategory); |
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243 } |
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244 else if (aModeId == KPbModeActivePlayer) |
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245 { |
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246 TInt index = IndexOfRecentActivePlayer(aCategory); |
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247 if (KErrNotFound != index) |
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248 { |
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249 p = iPlayers[index]; // active & matching category |
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250 } |
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251 if (!p && iPlayers.Count()>0) |
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252 { //no recent activeplayer, attach to the first player with matching category |
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253 TInt count = iPlayers.Count(); |
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254 for(TInt i = 0; i < count; i++) |
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255 { |
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256 if(iPlayers[i]->Category() == aCategory) |
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257 { |
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258 p = iPlayers[i]; // not active, first matching category |
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259 break; |
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260 } |
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261 } |
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262 } |
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263 if (p) |
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264 { |
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265 p->ClientList()->AddClientL(aClientId,aModeId.iUid,aMsgQueue, aCategory); |
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266 } |
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267 else |
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268 { // no player available (no active player with matching category) |
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269 MPX_DEBUG1("CMPXPlaybackServer::CreatePlayerL create a new player"); |
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270 p=AddNewPlayerL(aClientId, aModeId, aMsgQueue, aCategory); |
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271 } |
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272 } |
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273 else |
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274 { |
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275 // |
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276 // Add the new client to the player created by one application. If |
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277 // there isn't one, then create the first player for the application |
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278 // |
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279 for (TInt i=iPlayers.Count();--i>=0;) |
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280 { |
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281 if (iPlayers[i]->ModeId() == aModeId) |
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282 { |
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283 p = iPlayers[i]; |
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284 p->ClientList()->AddClientL(aClientId, |
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285 aModeId.iUid, aMsgQueue, aCategory); |
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286 break; |
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287 } |
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288 } |
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289 |
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290 if (!p) |
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291 { |
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292 p=AddNewPlayerL(aClientId, aModeId, aMsgQueue, aCategory); |
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293 } |
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294 } |
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295 return p; |
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296 } |
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297 |
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298 // ---------------------------------------------------------------------------- |
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299 // Add the new client (defined by it's TID) to the player |
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300 // associated with the Tid aExistingClientId |
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301 // ---------------------------------------------------------------------------- |
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302 // |
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303 CMPXPlaybackEngine* CMPXPlaybackServer::AddToDefaultPlayerL( |
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304 TThreadId aClientId, |
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305 CMPXMessageQueue* aMsgQueue, |
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306 const TInt aCategory) |
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307 { |
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308 CMPXPlaybackEngine* p=NULL; |
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309 for (TInt i=0; i < iPlayers.Count(); ++i) |
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310 { |
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311 p=iPlayers[i]; |
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312 CMPXClientList* cl=p->ClientList(); |
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313 TInt index = cl->Find(aClientId); |
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314 if (KErrNotFound != index) |
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315 { |
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316 // if the player is an active player, change mode from default |
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317 // to activeplayer. Default mode always uses the mode of first client |
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318 TInt mode = (cl->ClientMode(index) == KPbModeActivePlayer.iUid) ? |
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319 KPbModeActivePlayer.iUid : KPbModeDefault.iUid; |
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320 MPX_DEBUG3("CMPXPlaybackServer::AddToDefaultPlayerL mode 0x%08x, engine 0x%08x", |
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321 mode, p); |
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322 cl->AddClientL(aClientId,mode,aMsgQueue, aCategory); |
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323 break; |
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324 } |
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325 } |
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326 return p; |
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327 } |
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328 |
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329 // ---------------------------------------------------------------------------- |
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330 // Return the index of an active player. If there is no active player, return |
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331 // the index to the player in paused state which may be interrupted. |
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332 // ---------------------------------------------------------------------------- |
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333 // |
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334 TInt CMPXPlaybackServer::IndexOfRecentActivePlayer(TInt aCategory) |
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335 { |
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336 TInt ret(KErrNotFound); |
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337 for (TInt i=0; i<iPlayers.Count(); ++i) |
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338 { |
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339 CMPXPlaybackEngine* p = iPlayers[i]; |
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340 if (p->IsPlayerActive() && aCategory == p->Category()) |
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341 { // Found active player |
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342 ret = i; |
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343 break; |
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344 } |
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345 else if (EPbStatePaused == p->State() && KErrNotFound == ret && aCategory == p->Category()) |
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346 { // first paused player |
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347 ret = i; |
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348 } |
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349 } |
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350 return ret; |
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351 } |
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352 |
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353 TInt CMPXPlaybackServer::IndexOfRecentActivePlayer() |
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354 { |
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355 TInt ret(KErrNotFound); |
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356 for (TInt i=0; i<iPlayers.Count(); ++i) |
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357 { |
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358 CMPXPlaybackEngine* p = iPlayers[i]; |
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359 if (p->IsPlayerActive()) |
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360 { // Found active player |
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361 ret = i; |
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362 break; |
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363 } |
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364 else if (EPbStatePaused == p->State() && KErrNotFound == ret) |
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365 { // first paused player |
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366 ret = i; |
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367 } |
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368 } |
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369 return ret; |
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370 } |
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371 |
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372 // ---------------------------------------------------------------------------- |
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373 // Handle active player changed evnet. |
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374 // Notify all clients of EPbModeActivePlayer mode in inactive engines |
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375 // ---------------------------------------------------------------------------- |
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376 // |
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377 void CMPXPlaybackServer::HandleActiveEngineL( |
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378 const CMPXPlaybackEngine* aEngine, |
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379 TBool aActive) |
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380 { |
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381 MPX_DEBUG3("CMPXPlaybackServer::HandleActiveEngineL Engine: 0x%08x, Active %d", |
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382 aEngine, aActive); |
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383 TInt i(0); |
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384 TInt indexOfActive = iPlayers.Find(aEngine); |
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385 ASSERT(KErrNotFound!=indexOfActive); |
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386 if (!aActive) |
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387 { |
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388 #ifdef RD_TSP_CLIENT_MAPPER |
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389 iClientMapper->SetTspTargetClientToOtherType( |
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390 CTspClientMapper::EStoppedClients, |
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391 aEngine->LastActiveProcessId()); |
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392 MPX_DEBUG2("CMPXPlaybackServer::HandleActiveEngineL(): Adding to stopped client %d", |
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393 TUint( aEngine->LastActiveProcessId())); |
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394 |
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395 #endif |
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396 if (EPbStatePaused != aEngine->State()) |
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397 { |
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398 indexOfActive = IndexOfRecentActivePlayer(); |
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399 } |
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400 else |
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401 { // else no need to rebind. if the player is interruptted by other player |
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402 // there must be another HandleActiveEngineL callback with aActive = ETrue |
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403 indexOfActive = KErrNotFound; |
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404 } |
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405 } |
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406 else |
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407 {// else aEngine is active player |
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408 #ifdef RD_TSP_CLIENT_MAPPER |
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409 iClientMapper->SetTspTargetClientToOtherType( |
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410 CTspClientMapper::EPlayingClients, |
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411 aEngine->LastActiveProcessId()); |
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412 MPX_DEBUG2("CMPXPlaybackServer::HandleActiveEngineL(): Adding to playing client %d", |
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413 TUint( aEngine->LastActiveProcessId())); |
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414 #endif |
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415 } |
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416 |
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417 if (KErrNotFound != indexOfActive) |
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418 { |
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419 // Move the active player engine to the top of player list |
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420 CMPXPlaybackEngine* player(NULL); |
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421 if (indexOfActive) |
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422 { // not 0 |
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423 player = iPlayers[indexOfActive]; |
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424 iPlayers.Remove(indexOfActive); |
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425 iPlayers.Insert(player, 0); |
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426 } |
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427 |
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428 // Active engine changed, notify all clients who are instrested. |
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429 // e.g. KPbModeActivePlayer |
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430 for (i=1; i < iPlayers.Count(); ++i) |
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431 { |
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432 player = iPlayers[i]; |
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433 if (player == aEngine && aActive) |
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434 { |
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435 continue; |
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436 } |
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437 MPX_DEBUG2("CMPXPlaybackServer::HandleActiveEngineL Player: 0x%08x", player); |
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438 CMPXClientList* cl = player->ClientList(); |
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439 for (TInt j = cl->ClientCount(); --j>=0;) |
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440 { |
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441 if ((KPbModeActivePlayer.iUid == cl->ClientMode(j)) && |
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442 (aEngine->Category() == cl->ClientCategory(j))) |
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443 { |
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444 MPX_DEBUG2( |
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445 "CMPXPlaybackServer notify %d client player changed", j); |
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446 player->ClientList()->SendMsgL( |
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447 j, |
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448 TMPXPlaybackMessage( |
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449 TMPXPlaybackMessage::EActivePlayerChanged, |
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450 1, aActive)); |
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451 } |
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452 } |
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453 } |
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454 } |
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455 } |
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456 |
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457 // ---------------------------------------------------------------------------- |
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458 // Observe client change event |
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459 // ---------------------------------------------------------------------------- |
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460 // |
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461 void CMPXPlaybackServer::HandleClientChange( |
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462 const TProcessId& aPid, |
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463 MMPXClientlistObserver::TChangeType aChangeType) |
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464 { |
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465 #ifdef RD_TSP_CLIENT_MAPPER |
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466 if (MMPXClientlistObserver::EAdd == aChangeType) |
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467 { |
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468 iClientMapper->SetTspTargetClient( |
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469 CTspClientMapper::EPlayingClients, |
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470 aPid); |
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471 MPX_DEBUG2("CMPXPlaybackServer::HandleClientChange(): Adding to registered client %d", |
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472 TUint( aPid )); |
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473 } |
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474 else |
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475 { |
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476 iClientMapper->RemoveTspTargetClient( |
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477 CTspClientMapper::EPlayingClients, |
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478 aPid); |
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479 MPX_DEBUG2("CMPXPlaybackServer::HandleClientChange(): Adding to EPlayingClients client %d", |
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480 TUint( aPid )); |
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481 } |
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482 #else |
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483 (void)aPid; |
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484 (void)aChangeType; |
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485 #endif |
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486 } |
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487 |
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488 // ---------------------------------------------------------------------------- |
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489 // Create a new session |
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490 // ---------------------------------------------------------------------------- |
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491 // |
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492 CSession2* CMPXPlaybackServer::NewSessionL(const TVersion& aVersion, |
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493 const RMessage2& /*aMessage*/) const |
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494 { |
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495 TVersion v(KMPXPlaybackServerMajorVersionNumber, |
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496 KMPXPlaybackServerMinorVersionNumber, |
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497 KMPXPlaybackServerBuildVersionNumber); |
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498 if (!User::QueryVersionSupported(v,aVersion)) |
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499 User::Leave(KErrNotSupported); |
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500 CMPXPlaybackSession* session = CMPXPlaybackSession::NewL(); |
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501 const_cast<CMPXPlaybackServer*>(this)->AddClient(); |
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502 return session; |
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503 } |
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504 |
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505 // ---------------------------------------------------------------------------- |
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506 // Server exe entry |
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507 // ---------------------------------------------------------------------------- |
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508 // |
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509 TInt E32Main() |
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510 { |
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511 __UHEAP_MARK; |
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512 // |
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513 CTrapCleanup* cleanup=CTrapCleanup::New(); |
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514 TInt r=KErrNoMemory; |
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515 if (cleanup) |
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516 { |
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517 TRAP(r,StartServerL()); |
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518 } |
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519 |
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520 delete cleanup; |
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521 __UHEAP_MARKEND; |
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522 return r; |
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523 } |
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524 |
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525 // End of file |