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Issue #1442 - Part 14 - Starting body consuming and passing the JSContext down from the binding entrypoints to where the ReadableStream could be read. https://bugzilla.mozilla.org/show_bug.cgi?id=1128959

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This commit is contained in:
Brian Smith 2023-09-28 19:35:59 -05:00 • committed by roytam1
commit 842b9d47b3
15 changed files with 192 additions and 77 deletions
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73
dom/fetch/Fetch.cpp
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@ -948,6 +948,52 @@ template
bool
FetchBody<Response>::BodyUsed() const;
template <class Derived>
void
FetchBody<Derived>::SetBodyUsed(JSContext* aCx, ErrorResult& aRv)
{
MOZ_ASSERT(aCx);
MOZ_ASSERT(mOwner->EventTargetFor(TaskCategory::Other)->IsOnCurrentThread());
if (mBodyUsed) {
return;
}
mBodyUsed = true;
// If we already have a ReadableStreamBody and it has been created by DOM, we
// have to lock it now because it can have been shared with other objects.
if (mReadableStreamBody) {
JS::Rooted<JSObject*> readableStreamObj(aCx, mReadableStreamBody);
if (JS::ReadableStreamGetMode(readableStreamObj) ==
JS::ReadableStreamMode::ExternalSource) {
LockStream(aCx, readableStreamObj, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
} else {
// If this is not a native ReadableStream, let's activate the
// FetchStreamReader.
MOZ_ASSERT(mFetchStreamReader);
JS::Rooted<JSObject*> reader(aCx);
mFetchStreamReader->StartConsuming(aCx, readableStreamObj, &reader, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
mReadableStreamReader = reader;
}
}
}
template
void
FetchBody<Request>::SetBodyUsed(JSContext* aCx, ErrorResult& aRv);
template
void
FetchBody<Response>::SetBodyUsed(JSContext* aCx, ErrorResult& aRv);
template <class Derived>
already_AddRefed<Promise>
FetchBody<Derived>::ConsumeBody(JSContext* aCx, FetchConsumeType aType, ErrorResult& aRv)
@ -963,30 +1009,9 @@ FetchBody<Derived>::ConsumeBody(JSContext* aCx, FetchConsumeType aType, ErrorRes
return nullptr;
}
SetBodyUsed();
// If we already have a ReadableStreamBody and it has been created by DOM, we
// have to lock it now because it can have been shared with other objects.
if (mReadableStreamBody) {
JS::Rooted<JSObject*> readableStreamObj(aCx, mReadableStreamBody);
if (JS::ReadableStreamGetMode(readableStreamObj) ==
JS::ReadableStreamMode::ExternalSource) {
LockStream(aCx, readableStreamObj, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
} else {
// If this is not a native ReadableStream, let's activate the
// FetchStreamReader.
MOZ_ASSERT(mFetchStreamReader);
JS::Rooted<JSObject*> reader(aCx);
mFetchStreamReader->StartConsuming(aCx, readableStreamObj, &reader, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
mReadableStreamReader = reader;
}
SetBodyUsed(aCx, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsCOMPtr<nsIGlobalObject> global = DerivedClass()->GetParentObject();