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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 the License "Symbian Foundation 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.symbianfoundation.org/legal/sfl-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 // processlaunch.cpp |
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15 // |
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16 // |
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17 |
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18 #include <f32file.h> |
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19 #include "cprocesslaunch.h" |
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20 |
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21 //---------------------------------------------------------------------------- |
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22 |
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23 /** called by the launcher! Launch the process by specified parameters |
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24 find the process and launch it |
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25 |
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26 @param aParams A reference to TProcessStartParams object |
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27 @return Symbian error code |
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28 @see TProcessStartParams |
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29 @internalTechnology |
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30 @released |
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31 */ |
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32 TInt CProcessLaunch::ProcessLaunch(TProcessStartParams& aParams) |
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33 // now prevents multiple instances of the same image being launched! |
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34 // So P&S servers now look like realCServer2 servers. |
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35 { |
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36 TFullName fullName; |
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37 _LIT(KStar, "*"); |
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38 TParse parser; |
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39 parser.SetNoWild(aParams.GetProcessFileName(), NULL, NULL); |
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40 fullName.Append(parser.NameAndExt()); |
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41 fullName.Append(KStar); |
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42 |
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43 TFindProcess processFinder(fullName); |
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44 TInt err = KErrNotFound; |
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45 while (err = processFinder.Next(fullName), err == KErrNone) |
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46 { |
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47 RProcess process; |
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48 TInt processOpenErr = process.Open(processFinder); |
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49 if (processOpenErr == KErrNone) |
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50 { |
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51 TExitType exitType = process.ExitType(); |
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52 if (exitType == EExitPending) |
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53 { |
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54 // Found a running instance of the process, |
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55 // so return without starting another instance. |
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56 process.Close(); |
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57 return KErrNone; |
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58 } |
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59 } |
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60 process.Close(); |
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61 } |
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62 |
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63 // No running instance found, so start one. |
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64 return (DoProcessLaunch(aParams)); |
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65 } |
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66 |
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67 /** Create the process by specified parameters and wait for the request |
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68 |
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69 @param aParams A reference to TProcessStartParams object |
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70 @return Symbian error code |
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71 @see TProcessStartParams |
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72 @internalTechnology |
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73 @released |
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74 */ |
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75 TInt CProcessLaunch::DoProcessLaunch(TProcessStartParams& aParams) |
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76 { |
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77 RProcess process; |
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78 |
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79 TInt r=process.Create(aParams.GetProcessFileName(),aParams.GetAsCommandLine()); |
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80 if (r!=KErrNone) |
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81 { |
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82 return r; |
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83 } |
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84 // are we expecing to rendezvous with the process we have created above |
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85 if(aParams.GetRendezvousRequired()) |
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86 { |
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87 TRequestStatus stat; |
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88 process.Rendezvous(stat); |
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89 if (stat!=KRequestPending) |
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90 { |
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91 process.Kill(0); |
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92 } |
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93 else |
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94 { |
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95 process.Resume(); |
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96 } |
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97 User::WaitForRequest(stat); |
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98 r=(process.ExitType()==EExitPanic) ? KErrGeneral : stat.Int(); |
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99 } |
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100 process.Close(); |
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101 return r; |
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102 } |