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sky_packager is a tool that generates a Dart script snapshot for Dart files intended to run with dart:sky. I plan to use this tool to experiment with startup performance. R=jackson@google.com Review URL: https://codereview.chromium.org/1178213003.
44 lines
1.4 KiB
C++
44 lines
1.4 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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#include "sky/tools/packager/vm.h"
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#include "base/logging.h"
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#include "sky/tools/packager/loader.h"
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#include "sky/tools/packager/logging.h"
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namespace blink {
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extern const uint8_t* kDartVmIsolateSnapshotBuffer;
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extern const uint8_t* kDartIsolateSnapshotBuffer;
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}
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void InitDartVM() {
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int argc = 0;
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const char** argv = nullptr;
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CHECK(Dart_SetVMFlags(argc, argv));
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CHECK(Dart_Initialize(blink::kDartVmIsolateSnapshotBuffer,
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nullptr, // Isolate created callback.
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nullptr, // Isolate interrupt callback.
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nullptr, // Unhandled exception callback.
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nullptr, // Isolate shutdown callback.
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// File IO callbacks.
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nullptr, nullptr, nullptr, nullptr, nullptr));
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}
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Dart_Isolate CreateDartIsolate() {
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CHECK(blink::kDartIsolateSnapshotBuffer);
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char* error = nullptr;
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Dart_Isolate isolate =
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Dart_CreateIsolate("http://example.com", "main",
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blink::kDartIsolateSnapshotBuffer, nullptr, &error);
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CHECK(isolate) << error;
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CHECK(!LogIfError(Dart_SetLibraryTagHandler(HandleLibraryTag)));
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LoadSkyInternals();
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Dart_ExitIsolate();
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return isolate;
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}
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