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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/fuchsia/process_context.h"
#include <fidl/fuchsia.io/cpp/hlcpp_conversion.h>
#include <lib/sys/cpp/component_context.h>
#include <utility>
#include "base/no_destructor.h"
namespace base {
namespace {
std::unique_ptr<sys::ComponentContext>* GetComponentContextPtr() {
static base::NoDestructor<std::unique_ptr<sys::ComponentContext>> value(
std::make_unique<sys::ComponentContext>(
sys::ServiceDirectory::CreateFromNamespace()));
return value.get();
}
fidl::ClientEnd<fuchsia_io::Directory>* GetIncomingServiceDirectory() {
static base::NoDestructor<fidl::ClientEnd<fuchsia_io::Directory>> value(
fidl::HLCPPToNatural(
GetComponentContextPtr()->get()->svc()->CloneChannel()));
return value.get();
}
} // namespace
// TODO(crbug.com/40256913): This need to either be changed or removed when
// TestComponentContextForProcess is migrated to Natural bindings.
sys::ComponentContext* ComponentContextForProcess() {
return GetComponentContextPtr()->get();
}
fidl::UnownedClientEnd<fuchsia_io::Directory>
BorrowIncomingServiceDirectoryForProcess() {
return GetIncomingServiceDirectory()->borrow();
}
// Replaces the component context singleton value with the passed context. The
// incoming service directory client end is also re-mapped to the new context's
// outgoing directory.
// TODO(crbug.com/40256913): Rework this to support the natural binding backed
// TestComponentContextForProcess.
std::unique_ptr<sys::ComponentContext> ReplaceComponentContextForProcessForTest(
std::unique_ptr<sys::ComponentContext> context) {
std::swap(*GetComponentContextPtr(), context);
// Hold onto a client end that's connected to the incoming service directory
// to limit the number of channels open to the incoming service directory.
fidl::ClientEnd<fuchsia_io::Directory> incoming_service_directory(
fidl::HLCPPToNatural(
GetComponentContextPtr()->get()->svc()->CloneChannel()));
std::swap(*GetIncomingServiceDirectory(), incoming_service_directory);
return context;
}
} // namespace base
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