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1 // Copyright (c) 2010 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 // e32test\dll\t_nestedload.cpp |
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15 // Overview: |
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16 // Test that nested loading of DLLs does not cause incorrect constructor calls |
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17 // API Information: |
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18 // n/a |
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19 // Details: |
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20 // Platforms/Drives/Compatibility: |
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21 // All. |
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22 // Assumptions/Requirement/Pre-requisites: |
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23 // Failures and causes: |
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24 // Base Port information: |
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25 // |
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26 // |
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27 |
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28 /* |
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29 |
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30 This EXE links to and dynamically loads seven DLLs, t_nestdll1-7.dll. |
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31 The diagram below shows the structure of the linkage. Regular arrows |
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32 are normal static linkage, arrows marked with DY are dynamic loads with |
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33 RLibrary::Load. |
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34 |
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35 +-----+ +---+ +---+ |
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36 | EXE |----->| 1 |--DY->| 3 | |
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37 +-----+ +---+ +---+\ |
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38 | \ \ EXE and 3 both link to 2 |
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39 D \ \ +---+ |
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40 Y +------------------------+-->| 2 | |
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41 | +---+ |
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42 v |
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43 +---+ |
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44 | 5 | |
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45 +---+\ |
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46 | \ |
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47 D \ |
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48 Y \ |
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49 | \ |
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50 v \ |
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51 +---+ \ |
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52 | 6 | \ |
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53 +---+ \ |
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54 | \ |
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55 D \ |
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56 Y \ |
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57 | \ |
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58 v \ 5 and 7 both link to 4 |
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59 +---+ \ +---+ |
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60 | 7 |---------------+-->| 4 | |
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61 +---+ +---+ |
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62 |
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63 The result should be that the constructors are called in order from 1 to 7, |
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64 with no constructor being called more than once or omitted. |
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65 |
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66 */ |
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67 |
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68 #define __E32TEST_EXTENSION__ |
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69 |
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70 #include <e32test.h> |
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71 #include <e32svr.h> |
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72 |
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73 IMPORT_C TInt DataForDLL1(); |
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74 IMPORT_C TInt DataForDLL2(); |
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75 |
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76 TInt E32Main() |
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77 { |
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78 RTest test(_L("T_NESTEDLOAD")); |
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79 test.Title(); |
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80 |
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81 test.Start(_L("Test nested loading")); |
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82 |
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83 test.Next(_L("Dummy calls to static dependencies")); |
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84 DataForDLL1(); |
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85 DataForDLL2(); |
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86 |
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87 test.Next(_L("Load library triggering nested load")); |
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88 RLibrary lib; |
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89 test_KErrNone(lib.Load(_L("t_nestdll5.dll"))); |
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90 |
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91 test.Next(_L("Retrieve load order array")); |
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92 TInt* loadOrder = (TInt*)UserSvr::DllTls(0); |
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93 test_NotNull(loadOrder); |
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94 |
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95 test.Next(_L("Load order:")); |
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96 TInt i; |
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97 for (i = 0; i < 100; ++i) |
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98 { |
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99 if (loadOrder[i] == 0) |
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100 break; |
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101 test.Printf(_L("%d "), loadOrder[i]); |
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102 } |
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103 test.Printf(_L("\n")); |
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104 |
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105 // We expect DLLs 1-7 to be loaded in numerical order, with no repeats. |
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106 for (i = 0; i < 7; ++i) |
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107 test_Equal(i+1, loadOrder[i]); |
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108 test_Equal(0, loadOrder[7]); |
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109 |
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110 test.End(); |
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111 return(KErrNone); |
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112 } |
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113 |