nsresult
ReadHelper::DoAsyncRun(nsISupports* aStream)
{
NS_ASSERTION(aStream, "Passed a null stream!");
uint32_t flags = FileStreamWrapper::NOTIFY_PROGRESS;
nsCOMPtr<nsIInputStream> istream =
new FileInputStreamWrapper(aStream, this, mLocation, mSize, flags);
FileService* service = FileService::Get();
NS_ASSERTION(service, "This should never be null");
nsIEventTarget* target = service->StreamTransportTarget();
nsCOMPtr<nsIAsyncStreamCopier> copier;
nsresult rv =
NS_NewAsyncStreamCopier(getter_AddRefs(copier), istream, mStream, target,
false, true, STREAM_COPY_BLOCK_SIZE);
NS_ENSURE_SUCCESS(rv, rv);
rv = copier->AsyncCopy(this, nullptr);
NS_ENSURE_SUCCESS(rv, rv);
mRequest = do_QueryInterface(copier);
return NS_OK;
}
nsresult
LockedFile::Finish()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsRefPtr<FinishHelper> helper(new FinishHelper(this));
FileService* service = FileService::Get();
NS_ASSERTION(service, "This should never be null");
nsIEventTarget* target = service->StreamTransportTarget();
nsresult rv = target->Dispatch(helper, NS_DISPATCH_NORMAL);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
AsyncHelper::AsyncWork(nsIRequestObserver* aObserver, nsISupports* aCtxt)
{
nsresult rv;
if (aObserver) {
// build proxy for observer events
rv = NS_NewRequestObserverProxy(getter_AddRefs(mObserver), aObserver, aCtxt);
NS_ENSURE_SUCCESS(rv, rv);
}
FileService* service = FileService::GetOrCreate();
NS_ENSURE_TRUE(service, NS_ERROR_FAILURE);
nsIEventTarget* target = service->StreamTransportTarget();
rv = target->Dispatch(this, NS_DISPATCH_NORMAL);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
