Bug 109908 – Web Inspector: support stable remote object ids

• Component: Web Inspector
• Status: REOPENED

[Yury Semikhatsky]

At the moment inspector backend will generate new remote object id even though the object may have already been requested before and its id hasn't been released yet. Having stable remote object ids would improve debugging experience.

[Sandip Chitale]

This will be useful in implementing the enhancement: id=29714

[Yury Semikhatsky]

Created attachment 191482 [details]
Patch

[Yury Semikhatsky]

Committed r144924: <http://trac.webkit.org/changeset/144924>

[Csaba Osztrogonác]

(In reply to comment #3)
> Committed r144924: <http://trac.webkit.org/changeset/144924>

It made zillion inspector tests crash/assert everywhere:
- Mac: http://build.webkit.org/results/Apple%20Lion%20Debug%20WK1%20%28Tests%29/r144928%20%287239%29/results.html
- Qt: http://build.webkit.sed.hu/results/x86-64%20Linux%20Qt%20Debug/r144931%20%2828011%29/results.html

Could you check and fix it, please?

[Rafael Weinstein]

Reverted r144924 for reason:

caused multiple crashes in inspector/debugger tests

Committed r144950: <http://trac.webkit.org/changeset/144950>

[Rafael Weinstein]

FYI. All the stack traces looked like this:

crash log for DumpRenderTree (pid 2718):
STDOUT: <empty>
STDERR: objc[2718]: Class MockCrApp is implemented in both /Volumes/data/b/build/slave/WebKit_Mac10_7__dbg_/build/src/xcodebuild/Debug/libwebkit.dylib and /Volumes/data/b/build/slave/WebKit_Mac10_7__dbg_/build/src/xcodebuild/Debug/DumpRenderTree.app/Contents/MacOS/DumpRenderTree. One of the two will be used. Which one is undefined.
STDERR: ASSERTION FAILED: !isDeletedBucket(*(lookupForWriting(Extractor::extract(entry)).first))
STDERR: ../../third_party/WebKit/Source/WTF/wtf/HashTable.h(953) : void WTF::HashTable<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> >::reinsert(ValueType &) [Key = WebCore::ScriptObject, Value = WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, Extractor = WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, HashFunctions = WTF::ScriptObjectHash, Traits = WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, KeyTraits = WTF::HashTraits<WebCore::ScriptObject>]
STDERR: 1   0x92dd7e4 WTF::HashTable<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> >::reinsert(WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>&)
STDERR: 2   0x92dd4da WTF::HashTable<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> >::rehash(int)
STDERR: 3   0x92df9e8 WTF::HashTable<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> >::expand()
STDERR: 4   0x92df61d WTF::HashTableAddResult<WTF::HashTableIterator<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> > > WTF::HashTable<WebCore::ScriptObject, WTF::KeyValuePair<WebCore::ScriptObject, unsigned int>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WebCore::ScriptObject, unsigned int> >, WTF::ScriptObjectHash, WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::HashTraits<WebCore::ScriptObject> >::add<WTF::HashMapTranslator<WTF::HashMapValueTraits<WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >, WTF::ScriptObjectHash>, WebCore::ScriptObject, unsigned int>(WebCore::ScriptObject const&, unsigned int const&)
STDERR: 5   0x92df32f WTF::HashMap<WebCore::ScriptObject, unsigned int, WTF::ScriptObjectHash, WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >::inlineAdd(WebCore::ScriptObject const&, unsigned int const&)
STDERR: 6   0x92df1af WTF::HashMap<WebCore::ScriptObject, unsigned int, WTF::ScriptObjectHash, WTF::HashTraits<WebCore::ScriptObject>, WTF::HashTraits<unsigned int> >::add(WebCore::ScriptObject const&, unsigned int const&)
STDERR: 7   0x92cedc0 WebCore::InjectedScriptManager::ObjectIdMap::objectId(WebCore::ScriptObject const&)
STDERR: 8   0x92ccf4c WebCore::InjectedScriptManager::objectId(WebCore::ScriptObject const&)
STDERR: 9   0x92c910b WebCore::InjectedScriptHost::objectId(WebCore::ScriptObject const&)
STDERR: 10  0x8de2d4e WebCore::V8InjectedScriptHost::objectIdMethodCustom(v8::Arguments const&)
STDERR: 11  0x7b5792c _ZN7WebCore28InjectedScriptHostV8InternalL22objectIdMethodCallbackERKN2v89ArgumentsE
STDERR: 12  0x47a51634

[Radar WebKit Bug Importer]

<rdar://problem/19195609>