
This is first patch which keeps renaming logical in gn, but didn't rename natives_blob.bin to arch specific name, so the v8 patch (https://codereview.chromium.org/2074283002/) could be landed afterwards without breaking anything. BUG=620855 Review-Url: https://codereview.chromium.org/2075283003 Cr-Commit-Position: refs/heads/master@{#401005}
84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
// Copyright 2013 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 GIN_V8_INITIALIZER_H_
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#define GIN_V8_INITIALIZER_H_
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#include <stdint.h>
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#include "base/files/file.h"
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#include "base/files/memory_mapped_file.h"
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#include "gin/array_buffer.h"
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#include "gin/gin_export.h"
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#include "gin/public/isolate_holder.h"
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#include "gin/public/v8_platform.h"
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#include "v8/include/v8.h"
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namespace gin {
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class GIN_EXPORT V8Initializer {
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public:
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// This should be called by IsolateHolder::Initialize().
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static void Initialize(IsolateHolder::ScriptMode mode,
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IsolateHolder::V8ExtrasMode v8_extras_mode);
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// Get address and size information for currently loaded snapshot.
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// If no snapshot is loaded, the return values are null for addresses
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// and 0 for sizes.
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static void GetV8ExternalSnapshotData(const char** natives_data_out,
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int* natives_size_out,
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const char** snapshot_data_out,
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int* snapshot_size_out);
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#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
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// Load V8 snapshot from user provided platform file descriptors.
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// The offset and size arguments, if non-zero, specify the portions
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// of the files to be loaded. Since the VM can boot with or without
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// the snapshot, this function does not return a status.
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static void LoadV8SnapshotFromFD(base::PlatformFile snapshot_fd,
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int64_t snapshot_offset,
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int64_t snapshot_size);
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// Similar to LoadV8SnapshotFromFD, but for the source of the natives.
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// Without the natives we cannot continue, so this function contains
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// release mode asserts and won't return if it fails.
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static void LoadV8NativesFromFD(base::PlatformFile natives_fd,
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int64_t natives_offset,
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int64_t natives_size);
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// Load V8 snapshot from default resources, if they are available.
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static void LoadV8Snapshot();
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// Load V8 natives source from default resources. Contains asserts
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// so that it will not return if natives cannot be loaded.
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static void LoadV8Natives();
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// Opens (unless already cached) and returns the V8 natives file.
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// Use with LoadV8NativesFromFD().
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// Asserts if the file does not exist.
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static base::PlatformFile GetOpenNativesFileForChildProcesses(
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base::MemoryMappedFile::Region* region_out);
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// Opens (unless already cached) and returns the V8 snapshot file.
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// Use with LoadV8SnapshotFromFD().
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// Will return -1 if the file does not exist.
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static base::PlatformFile GetOpenSnapshotFileForChildProcesses(
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base::MemoryMappedFile::Region* region_out);
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#if defined(OS_ANDROID)
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static base::PlatformFile GetOpenSnapshotFileForChildProcesses(
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base::MemoryMappedFile::Region* region_out,
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bool abi_32_bit);
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static base::FilePath GetNativesFilePath();
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static base::FilePath GetSnapshotFilePath(bool abi_32_bit);
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#endif
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#endif // V8_USE_EXTERNAL_STARTUP_DATA
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};
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} // namespace gin
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#endif // GIN_V8_INITIALIZER_H_
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