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5 <title>TB9.2 Example Applications: examples/Base/IPC/AdvancedClientServerExample/ThreadServer/src/threadserver.cpp Source File</title> |
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11 <h1>examples/Base/IPC/AdvancedClientServerExample/ThreadServer/src/threadserver.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).</span> |
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12 <a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span> |
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13 <a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span> |
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14 <a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span> |
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15 <a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span> |
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16 <a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span> |
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17 <a name="l00007"></a>00007 <span class="comment">//</span> |
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18 <a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span> |
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19 <a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span> |
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20 <a name="l00010"></a>00010 <span class="comment">//</span> |
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21 <a name="l00011"></a>00011 <span class="comment">// Contributors:</span> |
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22 <a name="l00012"></a>00012 <span class="comment">//</span> |
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23 <a name="l00013"></a>00013 <span class="comment">// Description:</span> |
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24 <a name="l00014"></a>00014 <span class="comment">//</span> |
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25 <a name="l00015"></a>00015 |
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26 <a name="l00016"></a>00016 <span class="preprocessor">#include "threadserver.h"</span> |
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27 <a name="l00017"></a>00017 <span class="preprocessor">#include "threadserverstart.h"</span> |
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28 <a name="l00018"></a>00018 <span class="preprocessor">#include "threadserversession.h"</span> |
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29 <a name="l00019"></a>00019 |
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30 <a name="l00020"></a>00020 <span class="keyword">const</span> TInt KThreadServerShutDownDelay = 50000000; <span class="comment">//50 sec</span> |
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31 <a name="l00021"></a>00021 |
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32 <a name="l00022"></a>00022 |
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33 <a name="l00023"></a>00023 <span class="comment">//******CThreadServer******//</span> |
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34 <a name="l00027"></a><a class="code" href="class_c_thread_server.html#a7c41592480f2c412599c332f52a61347">00027</a> <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#a7c41592480f2c412599c332f52a61347">CThreadServer::NewLC</a>() |
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35 <a name="l00028"></a>00028 { |
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36 <a name="l00029"></a>00029 <a class="code" href="class_c_thread_server.html">CThreadServer</a>* s = <span class="keyword">new</span>(ELeave) <a class="code" href="class_c_thread_server.html">CThreadServer</a>(); |
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37 <a name="l00030"></a>00030 CleanupStack::PushL(s); |
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38 <a name="l00031"></a>00031 s->ConstructL(); |
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39 <a name="l00032"></a>00032 } |
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40 <a name="l00036"></a>00036 CThreadServer::CThreadServer() |
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41 <a name="l00037"></a>00037 :CServer2(EPriorityStandard, ESharableSessions),iDriverState(EStateUnknown) |
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42 <a name="l00038"></a>00038 { |
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43 <a name="l00039"></a>00039 } |
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44 <a name="l00040"></a>00040 <span class="keywordtype">void</span> CThreadServer::ConstructL() |
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45 <a name="l00041"></a>00041 { |
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46 <a name="l00042"></a>00042 <span class="comment">// Call CServer2::StartL() before any other functions inside ConstructL</span> |
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47 <a name="l00043"></a>00043 <span class="comment">// to avoid errors other than KErrAlreadyExists when the duplicate Server starts</span> |
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48 <a name="l00044"></a>00044 StartL(KThreadServerName); |
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49 <a name="l00045"></a>00045 iDelayThreadServerShutDown = <a class="code" href="class_c_delay_server_shut_down.html#ab57ff972b3f6f5807c26de442521f637">CDelayServerShutDown::NewL</a>(); |
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50 <a name="l00046"></a>00046 } |
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51 <a name="l00050"></a><a class="code" href="class_c_thread_server.html#aadfbd81c8ebdf682c5ea26e837024f39">00050</a> <a class="code" href="class_c_thread_server.html#aadfbd81c8ebdf682c5ea26e837024f39">CThreadServer::~CThreadServer</a>() |
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52 <a name="l00051"></a>00051 { |
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53 <a name="l00052"></a>00052 <span class="keywordflow">if</span> (iDelayThreadServerShutDown) |
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54 <a name="l00053"></a>00053 { |
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55 <a name="l00054"></a>00054 iDelayThreadServerShutDown->Cancel(); |
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56 <a name="l00055"></a>00055 <span class="keyword">delete</span> iDelayThreadServerShutDown; |
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57 <a name="l00056"></a>00056 } |
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58 <a name="l00057"></a>00057 <span class="comment">// unload device driver when server terminated</span> |
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59 <a name="l00058"></a>00058 <a class="code" href="class_c_thread_server.html#a5fff82f416011501a5d3e5040a24d515">UnloadDevice</a>(); |
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60 <a name="l00059"></a>00059 } |
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61 <a name="l00066"></a><a class="code" href="class_c_thread_server.html#a30edb9952525008bc2f994aa8e1c2542">00066</a> CSession2* <a class="code" href="class_c_thread_server.html#a30edb9952525008bc2f994aa8e1c2542">CThreadServer::NewSessionL</a>(<span class="keyword">const</span> TVersion& aVersion,<span class="keyword">const</span> RMessage2& <span class="comment">/*aMessage*/</span>)<span class="keyword"> const</span> |
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62 <a name="l00067"></a>00067 <span class="keyword"> </span>{ |
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63 <a name="l00068"></a>00068 <span class="comment">//check whether version is compatible</span> |
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64 <a name="l00069"></a>00069 TVersion v(KThreadServerVersion,KThreadServerMinorVersionNumber,KThreadServerBuildVersionNumber); |
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65 <a name="l00070"></a>00070 <span class="keywordflow">if</span>(!User::QueryVersionSupported(v, aVersion)) |
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66 <a name="l00071"></a>00071 User::Leave(KErrNotSupported); |
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67 <a name="l00072"></a>00072 |
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68 <a name="l00073"></a>00073 <span class="comment">// construct and return the server side client session object</span> |
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69 <a name="l00074"></a>00074 <a class="code" href="class_c_thread_server.html">CThreadServer</a>& ncThis = <span class="keyword">const_cast<</span><a class="code" href="class_c_thread_server.html">CThreadServer</a>&<span class="keyword">></span>(*this); |
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70 <a name="l00075"></a>00075 <a class="code" href="class_c_thread_server_session.html">CThreadServerSession</a>* serverSession = <a class="code" href="class_c_thread_server_session.html#af108a1cbe1843ce74693f272482aa612">CThreadServerSession::NewL</a>(ncThis); |
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71 <a name="l00076"></a>00076 <span class="keywordflow">return</span> serverSession; |
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72 <a name="l00077"></a>00077 } |
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73 <a name="l00081"></a><a class="code" href="class_c_thread_server.html#ae8800ec9ca3333ebffdbc790b38b218e">00081</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#ae8800ec9ca3333ebffdbc790b38b218e">CThreadServer::IncrementRefCount</a>() |
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74 <a name="l00082"></a>00082 { |
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75 <a name="l00083"></a>00083 iRefCount++; |
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76 <a name="l00084"></a>00084 iDelayThreadServerShutDown->Cancel(); <span class="comment">// Cancel shutdown if it has started due to no clients being connected.</span> |
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77 <a name="l00085"></a>00085 } |
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78 <a name="l00089"></a><a class="code" href="class_c_thread_server.html#add52c0ec21335f60489aa9a2478c11ab">00089</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#add52c0ec21335f60489aa9a2478c11ab">CThreadServer::DecrementRefCount</a>() |
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79 <a name="l00090"></a>00090 { |
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80 <a name="l00091"></a>00091 iRefCount--; |
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81 <a name="l00092"></a>00092 <span class="keywordflow">if</span> ( iRefCount == 0 ) |
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82 <a name="l00093"></a>00093 { |
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83 <a name="l00094"></a>00094 iDelayThreadServerShutDown-><a class="code" href="class_c_delay_server_shut_down.html#a1b51f1f1518e93bc35e65f3a789ef009">SetDelay</a>(TTimeIntervalMicroSeconds32(KThreadServerShutDownDelay)); |
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84 <a name="l00095"></a>00095 } |
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85 <a name="l00096"></a>00096 } |
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86 <a name="l00100"></a>00100 <span class="keywordtype">void</span> CThreadServer::RenameServer() |
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87 <a name="l00101"></a>00101 { |
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88 <a name="l00102"></a>00102 <span class="comment">//Rename thread server name in order to prevent same name creation</span> |
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89 <a name="l00103"></a>00103 RThread serverThread; |
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90 <a name="l00104"></a>00104 TThreadId threadId; |
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91 <a name="l00105"></a>00105 TName name; |
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92 <a name="l00106"></a>00106 name.Append(KThreadServerName); |
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93 <a name="l00107"></a>00107 threadId = serverThread.Id(); |
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94 <a name="l00108"></a>00108 name.AppendNum(threadId.Id(),EHex); |
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95 <a name="l00109"></a>00109 <span class="comment">//We are ignoring the error code returned from User::RenameThread</span> |
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96 <a name="l00110"></a>00110 <span class="comment">//as it is not important here, it may be used for profiling</span> |
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97 <a name="l00111"></a>00111 User::RenameThread(name); |
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98 <a name="l00112"></a>00112 } |
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99 <a name="l00117"></a><a class="code" href="class_c_thread_server.html#ab276a628b73ccf6b080c3e5f69a9cbba">00117</a> TInt <a class="code" href="class_c_thread_server.html#ab276a628b73ccf6b080c3e5f69a9cbba">CThreadServer::LoadDevice</a>() |
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100 <a name="l00118"></a>00118 { |
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101 <a name="l00119"></a>00119 <span class="keywordflow">if</span> (iDriverState>=EDriverLoaded && iDriverState<EDriverUnloaded) |
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102 <a name="l00120"></a>00120 <span class="keywordflow">return</span> KErrNone; <span class="comment">//Device has been loaded, return immediately</span> |
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103 <a name="l00121"></a>00121 |
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104 <a name="l00122"></a>00122 TInt r=User::LoadPhysicalDevice(KThreadServerDriverPddFileName); |
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105 <a name="l00123"></a>00123 <span class="keywordflow">if</span> (r!=KErrNone && r!=KErrAlreadyExists) |
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106 <a name="l00124"></a>00124 <span class="keywordflow">return</span> r; <span class="comment">//some error occurred</span> |
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107 <a name="l00125"></a>00125 |
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108 <a name="l00126"></a>00126 r = User::LoadLogicalDevice(KThreadServerDriverLddFileName); |
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109 <a name="l00127"></a>00127 <span class="keywordflow">if</span> (r!=KErrNone && r!=KErrAlreadyExists) |
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110 <a name="l00128"></a>00128 <span class="keywordflow">return</span> r; <span class="comment">//some error occurred </span> |
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111 <a name="l00129"></a>00129 |
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112 <a name="l00130"></a>00130 <span class="comment">//both PDD and LDD have been loaded</span> |
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113 <a name="l00131"></a>00131 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(EDriverLoaded); |
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114 <a name="l00132"></a>00132 <span class="keywordflow">return</span> KErrNone; |
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115 <a name="l00133"></a>00133 } |
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116 <a name="l00138"></a><a class="code" href="class_c_thread_server.html#a5fff82f416011501a5d3e5040a24d515">00138</a> TInt <a class="code" href="class_c_thread_server.html#a5fff82f416011501a5d3e5040a24d515">CThreadServer::UnloadDevice</a>() |
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117 <a name="l00139"></a>00139 { |
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118 <a name="l00140"></a>00140 <span class="keywordflow">if</span> (iDriverState==EDriverUnloaded || iDriverState == EStateUnknown) |
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119 <a name="l00141"></a>00141 <span class="keywordflow">return</span> KErrNone; <span class="comment">//no device is loaded, return immediately</span> |
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120 <a name="l00142"></a>00142 |
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121 <a name="l00143"></a>00143 <span class="comment">// close device</span> |
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122 <a name="l00144"></a>00144 <span class="keywordflow">if</span> (iDriver.Handle()) |
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123 <a name="l00145"></a>00145 iDriver.Close(); |
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124 <a name="l00146"></a>00146 <span class="comment">// Unload Logical Device</span> |
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125 <a name="l00147"></a>00147 TInt r = User::FreeLogicalDevice(<a class="code" href="class_r_driver1.html#a7e98e9f7ec04a53a404d646481f589ca">RDriver1::Name</a>()); |
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126 <a name="l00148"></a>00148 <span class="keywordflow">if</span> (r!=KErrNone) |
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127 <a name="l00149"></a>00149 <span class="keywordflow">return</span> r; |
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128 <a name="l00150"></a>00150 <span class="comment">// Unload Physical Device</span> |
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129 <a name="l00151"></a>00151 TName pddName(<a class="code" href="class_r_driver1.html#a7e98e9f7ec04a53a404d646481f589ca">RDriver1::Name</a>()); |
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130 <a name="l00152"></a>00152 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KVariantExtension,<span class="stringliteral">".template"</span>); |
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131 <a name="l00153"></a>00153 pddName.Append(KVariantExtension); |
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132 <a name="l00154"></a>00154 r=User::FreePhysicalDevice(pddName); |
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133 <a name="l00155"></a>00155 |
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134 <a name="l00156"></a>00156 <span class="keywordflow">if</span> (KErrNone==r) |
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135 <a name="l00157"></a>00157 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(EDriverUnloaded); |
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136 <a name="l00158"></a>00158 <span class="keywordflow">return</span> r; |
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137 <a name="l00159"></a>00159 } |
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138 <a name="l00164"></a><a class="code" href="class_c_thread_server.html#a50d46df581a8dd334babd2441bd21154">00164</a> TInt <a class="code" href="class_c_thread_server.html#a50d46df581a8dd334babd2441bd21154">CThreadServer::OpenLogicalChannel</a>() |
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139 <a name="l00165"></a>00165 { |
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140 <a name="l00166"></a>00166 <span class="keywordflow">if</span> (iDriverState>=ELogicalChannelOpened && iDriverState<ELogicalChannelClosed) |
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141 <a name="l00167"></a>00167 <span class="keywordflow">return</span> KErrNone; |
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142 <a name="l00168"></a>00168 |
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143 <a name="l00169"></a>00169 TInt r = iDriver.<a class="code" href="class_r_driver1.html#af30696b673cd91e87f9c7497a72798eb">Open</a>(); |
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144 <a name="l00170"></a>00170 <span class="keywordflow">if</span> (KErrNone==r) |
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145 <a name="l00171"></a>00171 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(ELogicalChannelOpened); |
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146 <a name="l00172"></a>00172 |
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147 <a name="l00173"></a>00173 <span class="keywordflow">return</span> r; |
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148 <a name="l00174"></a>00174 } |
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149 <a name="l00178"></a><a class="code" href="class_c_thread_server.html#abebdf4dc3dbbe186b9bf20ea3d16681f">00178</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#abebdf4dc3dbbe186b9bf20ea3d16681f">CThreadServer::CloseLogicalChannel</a>() |
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150 <a name="l00179"></a>00179 { |
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151 <a name="l00180"></a>00180 <span class="keywordflow">if</span> (iDriver.Handle()) |
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152 <a name="l00181"></a>00181 { |
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153 <a name="l00182"></a>00182 iDriver.Close(); |
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154 <a name="l00183"></a>00183 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(ELogicalChannelClosed); |
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155 <a name="l00184"></a>00184 } |
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156 <a name="l00185"></a>00185 } |
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157 <a name="l00192"></a><a class="code" href="class_c_thread_server.html#a5d9fd415bca412e6f73b8c80cdf60f29">00192</a> TInt <a class="code" href="class_c_thread_server.html#a5d9fd415bca412e6f73b8c80cdf60f29">CThreadServer::SendDataToDevice</a>(TRequestStatus& aStatus, <span class="keyword">const</span> TDesC8& aData) |
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158 <a name="l00193"></a>00193 { |
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159 <a name="l00194"></a>00194 TInt r = KErrNone; |
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160 <a name="l00195"></a>00195 <span class="keywordflow">if</span> (iDriverState>=ELogicalChannelOpened && iDriverState<ELogicalChannelClosed) |
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161 <a name="l00196"></a>00196 { |
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162 <a name="l00197"></a>00197 iDriver.<a class="code" href="class_r_driver1.html#a2b99c6487e8916a54720d8eb3071cd85">SendData</a>(aStatus, aData); |
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163 <a name="l00198"></a>00198 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(ESendingData); |
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164 <a name="l00199"></a>00199 } |
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165 <a name="l00200"></a>00200 <span class="keywordflow">else</span> |
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166 <a name="l00201"></a>00201 { |
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167 <a name="l00202"></a>00202 r = KErrArgument; |
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168 <a name="l00203"></a>00203 } |
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169 <a name="l00204"></a>00204 <span class="keywordflow">return</span> r; |
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170 <a name="l00205"></a>00205 } |
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171 <a name="l00209"></a><a class="code" href="class_c_thread_server.html#afa4844b8aec06286cc5a29d11f12ae47">00209</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#afa4844b8aec06286cc5a29d11f12ae47">CThreadServer::CancelSendData</a>() |
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172 <a name="l00210"></a>00210 { |
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173 <a name="l00211"></a>00211 iDriver.<a class="code" href="class_r_driver1.html#a3a9b32b811f9bec9b3317d2b187b8417">SendDataCancel</a>(); |
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174 <a name="l00212"></a>00212 <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">UpdateDriverState</a>(ELogicalChannelOpened); |
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175 <a name="l00213"></a>00213 } |
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176 <a name="l00218"></a><a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">00218</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_server.html#a631c9159f8d0d91fc3136f1012663851">CThreadServer::UpdateDriverState</a>(<a class="code" href="class_c_thread_server.html#afb6315c557a5690492f0441ae493b512">TDriverState</a> aState) |
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177 <a name="l00219"></a>00219 { |
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178 <a name="l00220"></a>00220 iDriverState = aState; |
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179 <a name="l00221"></a>00221 } |
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180 <a name="l00222"></a>00222 <span class="comment">//EOF</span> |
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181 </pre></div></div> |
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182 <hr size="1"/><address style="text-align: right;"><small>Generated by |
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183 <a href="http://www.doxygen.org/index.html"> |
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184 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> |
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185 </body> |
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186 </html> |