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comparison: xpcom/tests/SizeTest02.cpp
xpcom/tests/SizeTest02.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:888678cb81e0 |
|---|---|
| 1 // Test02.cpp | |
| 2 | |
| 3 #include "nsIDOMNode.h" | |
| 4 #include "nsCOMPtr.h" | |
| 5 #include "nsString.h" | |
| 6 | |
| 7 NS_DEF_PTR(nsIDOMNode); | |
| 8 | |
| 9 /* | |
| 10 This test file compares the generated code size of similar functions between raw | |
| 11 COM interface pointers (|AddRef|ing and |Release|ing by hand) and |nsCOMPtr|s. | |
| 12 | |
| 13 Function size results were determined by examining dissassembly of the generated code. | |
| 14 mXXX is the size of the generated code on the Macintosh. wXXX is the size on Windows. | |
| 15 For these tests, all reasonable optimizations were enabled and exceptions were | |
| 16 disabled (just as we build for release). | |
| 17 | |
| 18 The tests in this file explore more complicated functionality: assigning a pointer | |
| 19 to be reference counted into a [raw, nsCOMPtr] object using |QueryInterface|; | |
| 20 ensuring that it is |AddRef|ed and |Release|d appropriately; calling through the pointer | |
| 21 to a function supplied by the underlying COM interface. The tests in this file expand | |
| 22 on the tests in "Test01.cpp" by adding |QueryInterface|. | |
| 23 | |
| 24 Windows: | |
| 25 raw01 52 | |
| 26 nsCOMPtr 63 | |
| 27 raw 66 | |
| 28 nsCOMPtr* 68 | |
| 29 | |
| 30 Macintosh: | |
| 31 nsCOMPtr 120 (1.0000) | |
| 32 Raw01 128 (1.1429) i.e., 14.29% bigger than nsCOMPtr | |
| 33 Raw00 144 (1.2000) | |
| 34 */ | |
| 35 | |
| 36 | |
| 37 void // nsresult | |
| 38 Test02_Raw00( nsISupports* aDOMNode, nsString* aResult ) | |
| 39 // m144, w66 | |
| 40 { | |
| 41 // -- the following code is assumed, but is commented out so we compare only | |
| 42 // the relevent generated code | |
| 43 | |
| 44 // if ( !aDOMNode ) | |
| 45 // return NS_ERROR_NULL_POINTER; | |
| 46 | |
| 47 nsIDOMNode* node = 0; | |
| 48 nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node); | |
| 49 if ( NS_SUCCEEDED(status) ) | |
| 50 { | |
| 51 node->GetNodeName(*aResult); | |
| 52 } | |
| 53 | |
| 54 NS_IF_RELEASE(node); | |
| 55 | |
| 56 // return status; | |
| 57 } | |
| 58 | |
| 59 void // nsresult | |
| 60 Test02_Raw01( nsISupports* aDOMNode, nsString* aResult ) | |
| 61 // m128, w52 | |
| 62 { | |
| 63 // if ( !aDOMNode ) | |
| 64 // return NS_ERROR_NULL_POINTER; | |
| 65 | |
| 66 nsIDOMNode* node; | |
| 67 nsresult status = aDOMNode->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node); | |
| 68 if ( NS_SUCCEEDED(status) ) | |
| 69 { | |
| 70 node->GetNodeName(*aResult); | |
| 71 NS_RELEASE(node); | |
| 72 } | |
| 73 | |
| 74 // return status; | |
| 75 } | |
| 76 | |
| 77 void // nsresult | |
| 78 Test02_nsCOMPtr( nsISupports* aDOMNode, nsString* aResult ) | |
| 79 // m120, w63/68 | |
| 80 { | |
| 81 nsresult status; | |
| 82 nsCOMPtr<nsIDOMNode> node = do_QueryInterface(aDOMNode, &status); | |
| 83 | |
| 84 if ( node ) | |
| 85 node->GetNodeName(*aResult); | |
| 86 | |
| 87 // return status; | |
| 88 } | |
| 89 |
