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If an isolate shuts down (for example if an app calls Isolate.current.kill()), the UIDartState* on DartController will refer to a freed object. This wires through notification that the is shutting down through to the DartController so it can clean up appropriately. This also makes gives the vm-service isolate an UIDartState* so that the shutdown callback can behave correctly.
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright 2015 The Chromium 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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#ifndef FLUTTER_RUNTIME_DART_CONTROLLER_H_
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#define FLUTTER_RUNTIME_DART_CONTROLLER_H_
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#include <memory>
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#include <vector>
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#include "dart/runtime/include/dart_api.h"
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#include "lib/fxl/macros.h"
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#include "lib/tonic/logging/dart_error.h"
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namespace blink {
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class UIDartState;
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class DartController {
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public:
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DartController();
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~DartController();
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tonic::DartErrorHandleType RunFromKernel(const std::vector<uint8_t>& kernel);
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tonic::DartErrorHandleType RunFromPrecompiledSnapshot();
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tonic::DartErrorHandleType RunFromScriptSnapshot(const uint8_t* buffer,
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size_t size);
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tonic::DartErrorHandleType RunFromSource(const std::string& main,
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const std::string& packages);
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void CreateIsolateFor(const std::string& script_uri,
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const uint8_t* isolate_snapshot_data,
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const uint8_t* isolate_snapshot_instr,
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const std::vector<uint8_t>& platform_kernel,
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std::unique_ptr<UIDartState> ui_dart_state);
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UIDartState* dart_state() const { return ui_dart_state_; }
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void IsolateShuttingDown();
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private:
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bool SendStartMessage(Dart_Handle root_library);
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// The DartState associated with the main isolate. This will be deleted
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// during isolate shutdown.
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UIDartState* ui_dart_state_;
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// Kernel binary image of platform core libraries. This is copied and
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// maintained for dart script lifespan, so that kernel loading mechanism can
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// incrementally build the dart objects from it.
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uint8_t* platform_kernel_bytes;
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FXL_DISALLOW_COPY_AND_ASSIGN(DartController);
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};
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} // namespace blink
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#endif // FLUTTER_RUNTIME_DART_CONTROLLER_H_
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