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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /xpcom/tests/SizeTest02.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'xpcom/tests/SizeTest02.cpp')
-rw-r--r--xpcom/tests/SizeTest02.cpp87
1 files changed, 87 insertions, 0 deletions
diff --git a/xpcom/tests/SizeTest02.cpp b/xpcom/tests/SizeTest02.cpp
new file mode 100644
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--- /dev/null
+++ b/xpcom/tests/SizeTest02.cpp
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+// Test02.cpp
+
+#include "nsINode.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+
+NS_DEF_PTR(nsINode);
+
+/*
+ This test file compares the generated code size of similar functions
+ between raw COM interface pointers (|AddRef|ing and |Release|ing by hand) and
+ |nsCOMPtr|s.
+
+ Function size results were determined by examining dissassembly of the
+ generated code. mXXX is the size of the generated code on the Macintosh. wXXX
+ is the size on Windows. For these tests, all reasonable optimizations were
+ enabled and exceptions were disabled (just as we build for release).
+
+ The tests in this file explore more complicated functionality: assigning
+ a pointer to be reference counted into a [raw, nsCOMPtr] object using
+ |QueryInterface|; ensuring that it is |AddRef|ed and |Release|d
+ appropriately; calling through the pointer to a function supplied by the
+ underlying COM interface. The tests in this file expand on the tests in
+ "Test01.cpp" by adding |QueryInterface|.
+
+ Windows:
+ raw01
+ 52 nsCOMPtr 63 raw
+ 66 nsCOMPtr* 68
+
+ Macintosh:
+ nsCOMPtr 120 (1.0000) Raw01
+ 128 (1.1429) i.e., 14.29% bigger than nsCOMPtr Raw00
+ 144 (1.2000)
+*/
+
+void // nsresult
+Test02_Raw00(nsISupports* aDOMNode, nsString* aResult)
+// m144, w66
+{
+ // -- the following code is assumed, but is commented out so we compare only
+ // the relevent generated code
+
+ // if ( !aDOMNode )
+ // return NS_ERROR_NULL_POINTER;
+
+ nsINode* node = 0;
+ nsresult status =
+ aDOMNode->QueryInterface(NS_GET_IID(nsINode), (void**)&node);
+ if (NS_SUCCEEDED(status)) {
+ node->GetNodeName(*aResult);
+ }
+
+ NS_IF_RELEASE(node);
+
+ // return status;
+}
+
+void // nsresult
+Test02_Raw01(nsISupports* aDOMNode, nsString* aResult)
+// m128, w52
+{
+ // if ( !aDOMNode )
+ // return NS_ERROR_NULL_POINTER;
+
+ nsINode* node;
+ nsresult status =
+ aDOMNode->QueryInterface(NS_GET_IID(nsINode), (void**)&node);
+ if (NS_SUCCEEDED(status)) {
+ node->GetNodeName(*aResult);
+ NS_RELEASE(node);
+ }
+
+ // return status;
+}
+
+void // nsresult
+Test02_nsCOMPtr(nsISupports* aDOMNode, nsString* aResult)
+// m120, w63/68
+{
+ nsresult status;
+ nsCOMPtr<nsINode> node = do_QueryInterface(aDOMNode, &status);
+
+ if (node) node->GetNodeName(*aResult);
+
+ // return status;
+}