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serenity/Userland/Services/WebWorker/ConnectionFromClient.cpp
Andrew Kaster b10fee00eb LibWeb+WebWorker: Convert Workers to use MessagePorts for postMessage
This aligns Workers and Window and MessagePorts to all use the same
mechanism for transferring serialized messages across realms.

It also allows transferring more message ports into a worker.

Re-enable the Worker-echo test, as none of the MessagePort tests have
themselves been flaky, and those are now using the same underlying
implementation.
2023-12-25 12:09:11 +01:00

73 lines
2.4 KiB
C++

/*
* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <WebWorker/ConnectionFromClient.h>
#include <WebWorker/DedicatedWorkerHost.h>
#include <WebWorker/PageHost.h>
namespace WebWorker {
void ConnectionFromClient::die()
{
// FIXME: When handling multiple workers in the same process,
// this logic needs to be smarter (only when all workers are dead, etc).
Core::EventLoop::current().quit(0);
}
void ConnectionFromClient::request_file(Web::FileRequest request)
{
// FIXME: Route this to FSAS or Brower chrome as appropriate instead of allowing
// the WebWorker process filesystem access
auto path = request.path();
auto request_id = ++last_id;
m_requested_files.set(request_id, move(request));
auto file = Core::File::open(path, Core::File::OpenMode::Read);
if (file.is_error())
handle_file_return(file.error().code(), {}, request_id);
else
handle_file_return(0, IPC::File(*file.value()), request_id);
}
ConnectionFromClient::ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket> socket)
: IPC::ConnectionFromClient<WebWorkerClientEndpoint, WebWorkerServerEndpoint>(*this, move(socket), 1)
, m_page_host(PageHost::create(Web::Bindings::main_thread_vm(), *this))
{
}
ConnectionFromClient::~ConnectionFromClient() = default;
Web::Page& ConnectionFromClient::page()
{
return m_page_host->page();
}
Web::Page const& ConnectionFromClient::page() const
{
return m_page_host->page();
}
void ConnectionFromClient::start_dedicated_worker(AK::URL const& url, String const& type, String const&, String const&, Web::HTML::TransferDataHolder const& implicit_port)
{
m_worker_host = make_ref_counted<DedicatedWorkerHost>(url, type);
// FIXME: Yikes, const_cast to move? Feels like a LibIPC bug.
// We should be able to move non-copyable types from a Message type.
m_worker_host->run(page(), move(const_cast<Web::HTML::TransferDataHolder&>(implicit_port)));
}
void ConnectionFromClient::handle_file_return(i32 error, Optional<IPC::File> const& file, i32 request_id)
{
auto file_request = m_requested_files.take(request_id);
VERIFY(file_request.has_value());
VERIFY(file_request.value().on_file_request_finish);
file_request.value().on_file_request_finish(error != 0 ? Error::from_errno(error) : ErrorOr<i32> { file->take_fd() });
}
}