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b68351fbc3
TEST=build Change-Id: Ie3be570c274b0275a995a0f54b5e6ccdfc77ccd3 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/292287 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Brian Quinlan <bquinlan@google.com>
163 lines
4.8 KiB
C++
163 lines
4.8 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_BIN_ISOLATE_DATA_H_
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#define RUNTIME_BIN_ISOLATE_DATA_H_
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#include <memory>
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#include <utility>
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#include "include/dart_api.h"
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#include "platform/assert.h"
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#include "platform/globals.h"
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#include "platform/growable_array.h"
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#include "platform/utils.h"
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namespace dart {
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// Forward declaration.
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template <typename T>
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class MallocGrowableArray;
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} // namespace dart
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namespace dart {
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namespace bin {
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// Forward declaration.
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class AppSnapshot;
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class EventHandler;
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class Loader;
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// Data associated with every isolate group in the standalone VM
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// embedding. This is used to free external resources for each isolate
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// group when the isolate group shuts down.
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class IsolateGroupData {
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public:
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IsolateGroupData(const char* url,
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const char* packages_file,
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AppSnapshot* app_snapshot,
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bool isolate_run_app_snapshot);
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~IsolateGroupData();
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char* script_url;
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const std::shared_ptr<uint8_t>& kernel_buffer() const {
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return kernel_buffer_;
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}
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intptr_t kernel_buffer_size() const { return kernel_buffer_size_; }
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// Associate the given kernel buffer with this IsolateGroupData without
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// giving it ownership of the buffer.
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void SetKernelBufferUnowned(uint8_t* buffer, intptr_t size) {
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ASSERT(kernel_buffer_.get() == nullptr);
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kernel_buffer_ = std::shared_ptr<uint8_t>(buffer, FreeUnownedKernelBuffer);
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kernel_buffer_size_ = size;
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}
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// Associate the given kernel buffer with this IsolateGroupData and give it
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// ownership of the buffer. This IsolateGroupData is the first one to own the
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// buffer.
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void SetKernelBufferNewlyOwned(uint8_t* buffer, intptr_t size) {
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ASSERT(kernel_buffer_.get() == nullptr);
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kernel_buffer_ = std::shared_ptr<uint8_t>(buffer, free);
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kernel_buffer_size_ = size;
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}
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// Associate the given kernel buffer with this IsolateGroupData and give it
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// ownership of the buffer. The buffer is already owned by another
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// IsolateGroupData.
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void SetKernelBufferAlreadyOwned(std::shared_ptr<uint8_t> buffer,
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intptr_t size) {
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ASSERT(kernel_buffer_.get() == nullptr);
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kernel_buffer_ = std::move(buffer);
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kernel_buffer_size_ = size;
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}
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const char* resolved_packages_config() const {
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return resolved_packages_config_;
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}
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void set_resolved_packages_config(const char* packages_config) {
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if (resolved_packages_config_ != nullptr) {
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free(resolved_packages_config_);
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resolved_packages_config_ = nullptr;
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}
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resolved_packages_config_ = Utils::StrDup(packages_config);
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}
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bool RunFromAppSnapshot() const {
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// If the main isolate is using an app snapshot the [app_snapshot_] pointer
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// will be still nullptr (see main.cc:CreateIsolateGroupAndSetupHelper)
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//
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// Because of thus we have an additional boolean signaling whether the
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// isolate was started from an app snapshot.
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return app_snapshot_ != nullptr || isolate_run_app_snapshot_;
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}
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void AddLoadingUnit(AppSnapshot* loading_unit) {
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loading_units_.Add(loading_unit);
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}
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private:
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friend class IsolateData; // For packages_file_
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std::unique_ptr<AppSnapshot> app_snapshot_;
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MallocGrowableArray<AppSnapshot*> loading_units_;
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char* resolved_packages_config_;
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std::shared_ptr<uint8_t> kernel_buffer_;
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intptr_t kernel_buffer_size_;
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char* packages_file_ = nullptr;
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bool isolate_run_app_snapshot_;
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static void FreeUnownedKernelBuffer(uint8_t*) {}
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DISALLOW_COPY_AND_ASSIGN(IsolateGroupData);
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};
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// Data associated with every isolate in the standalone VM
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// embedding. This is used to free external resources for each isolate
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// when the isolate shuts down.
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class IsolateData {
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public:
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explicit IsolateData(IsolateGroupData* isolate_group_data);
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~IsolateData();
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IsolateGroupData* isolate_group_data() const { return isolate_group_data_; }
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void UpdatePackagesFile(const char* packages_file) {
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if (packages_file != nullptr) {
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free(packages_file_);
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packages_file_ = nullptr;
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}
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packages_file_ = Utils::StrDup(packages_file);
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}
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// While loading a loader is associated with the isolate.
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bool HasLoader() const { return loader_ != nullptr; }
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Loader* loader() const {
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ASSERT(loader_ != nullptr);
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return loader_;
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}
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void set_loader(Loader* loader) {
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ASSERT((loader_ == nullptr) || (loader == nullptr));
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loader_ = loader;
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}
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const char* packages_file() const { return packages_file_; }
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private:
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IsolateGroupData* isolate_group_data_;
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Loader* loader_;
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char* packages_file_;
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DISALLOW_COPY_AND_ASSIGN(IsolateData);
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};
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} // namespace bin
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} // namespace dart
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#endif // RUNTIME_BIN_ISOLATE_DATA_H_
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