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95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "isolate_configurator.h"
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#include "dart-pkg/fuchsia/sdk_ext/fuchsia.h"
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#include "dart-pkg/zircon/sdk_ext/handle.h"
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#include "third_party/dart/runtime/include/dart_api.h"
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#include "third_party/tonic/converter/dart_converter.h"
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#include "third_party/tonic/dart_state.h"
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#include "third_party/tonic/logging/dart_error.h"
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namespace flutter_runner {
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IsolateConfigurator::IsolateConfigurator(
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UniqueFDIONS fdio_ns,
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fidl::InterfaceHandle<fuchsia::sys::Environment> environment,
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zx::channel directory_request,
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zx::eventpair view_ref)
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: fdio_ns_(std::move(fdio_ns)),
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environment_(std::move(environment)),
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directory_request_(std::move(directory_request)),
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view_ref_(std::move(view_ref)) {}
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IsolateConfigurator::~IsolateConfigurator() = default;
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bool IsolateConfigurator::ConfigureCurrentIsolate() {
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if (used_) {
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return false;
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}
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used_ = true;
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BindFuchsia();
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BindZircon();
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BindDartIO();
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// This is now owned by the Dart bindings. So relinquish our ownership of the
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// handle.
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(void)fdio_ns_.release();
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return true;
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}
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void IsolateConfigurator::BindFuchsia() {
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fuchsia::dart::Initialize(std::move(environment_),
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std::move(directory_request_),
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std::move(view_ref_));
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}
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void IsolateConfigurator::BindZircon() {
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// Tell dart:zircon about the FDIO namespace configured for this instance.
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Dart_Handle zircon_lib = Dart_LookupLibrary(tonic::ToDart("dart:zircon"));
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FML_CHECK(!tonic::LogIfError(zircon_lib));
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Dart_Handle namespace_type =
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Dart_GetType(zircon_lib, tonic::ToDart("_Namespace"), 0, nullptr);
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FML_CHECK(!tonic::LogIfError(namespace_type));
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Dart_Handle result =
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Dart_SetField(namespace_type, //
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tonic::ToDart("_namespace"), //
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tonic::ToDart(reinterpret_cast<intptr_t>(fdio_ns_.get())));
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FML_CHECK(!tonic::LogIfError(result));
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}
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void IsolateConfigurator::BindDartIO() {
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// Grab the dart:io lib.
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Dart_Handle io_lib = Dart_LookupLibrary(tonic::ToDart("dart:io"));
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FML_CHECK(!tonic::LogIfError(io_lib));
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// Disable dart:io exit()
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Dart_Handle embedder_config_type =
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Dart_GetType(io_lib, tonic::ToDart("_EmbedderConfig"), 0, nullptr);
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FML_CHECK(!tonic::LogIfError(embedder_config_type));
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Dart_Handle result = Dart_SetField(embedder_config_type,
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tonic::ToDart("_mayExit"), Dart_False());
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FML_CHECK(!tonic::LogIfError(result));
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// Tell dart:io about the FDIO namespace configured for this instance.
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Dart_Handle namespace_type =
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Dart_GetType(io_lib, tonic::ToDart("_Namespace"), 0, nullptr);
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FML_CHECK(!tonic::LogIfError(namespace_type));
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Dart_Handle namespace_args[] = {
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Dart_NewInteger(reinterpret_cast<intptr_t>(fdio_ns_.get())), //
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};
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result = Dart_Invoke(namespace_type, tonic::ToDart("_setupNamespace"), 1,
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namespace_args);
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FML_CHECK(!tonic::LogIfError(result));
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}
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} // namespace flutter_runner
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