79f75279db
gin::V8Initializer::LoadV8SnapshotFromFD and LoadV8NativesFromFD were accepting a base::PlatformFile owned by a File and then passing it into MemoryMappedFile::Initialize, which constructs another owning base::File from the PlatformFile. Refactor the functions to take base::File instead, and delete some code that was maintaining a cache that only ever missed. Bug: 884034 Change-Id: I2758bc45de63ee4d34dcd5a4b806f1806e25e4f8 Reviewed-on: https://chromium-review.googlesource.com/c/1247322 Commit-Queue: Josh Gao <jmgao@google.com> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jochen Eisinger <jochen@chromium.org> Cr-Commit-Position: refs/heads/master@{#596775}
82 lines
2.9 KiB
C++
82 lines
2.9 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef GIN_V8_INITIALIZER_H_
|
|
#define GIN_V8_INITIALIZER_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "base/files/file.h"
|
|
#include "base/files/memory_mapped_file.h"
|
|
#include "gin/array_buffer.h"
|
|
#include "gin/gin_export.h"
|
|
#include "gin/public/isolate_holder.h"
|
|
#include "gin/public/v8_platform.h"
|
|
#include "v8/include/v8.h"
|
|
|
|
namespace gin {
|
|
|
|
class GIN_EXPORT V8Initializer {
|
|
public:
|
|
// This should be called by IsolateHolder::Initialize().
|
|
static void Initialize(IsolateHolder::ScriptMode mode,
|
|
IsolateHolder::V8ExtrasMode v8_extras_mode);
|
|
|
|
// Get address and size information for currently loaded snapshot.
|
|
// If no snapshot is loaded, the return values are null for addresses
|
|
// and 0 for sizes.
|
|
static void GetV8ExternalSnapshotData(v8::StartupData* natives,
|
|
v8::StartupData* snapshot);
|
|
static void GetV8ExternalSnapshotData(const char** natives_data_out,
|
|
int* natives_size_out,
|
|
const char** snapshot_data_out,
|
|
int* snapshot_size_out);
|
|
|
|
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
|
|
// Indicates which file to load as a snapshot blob image.
|
|
enum class V8SnapshotFileType {
|
|
kDefault,
|
|
|
|
// Snapshot augmented with customized contexts, which can be deserialized
|
|
// using v8::Context::FromSnapshot.
|
|
kWithAdditionalContext,
|
|
};
|
|
|
|
// Load V8 snapshot from default resources, if they are available.
|
|
static void LoadV8Snapshot(
|
|
V8SnapshotFileType snapshot_file_type = V8SnapshotFileType::kDefault);
|
|
// Load V8 natives source from default resources. Contains asserts
|
|
// so that it will not return if natives cannot be loaded.
|
|
static void LoadV8Natives();
|
|
|
|
// Load V8 snapshot from user provided file.
|
|
// The region argument, if non-zero, specifies the portions
|
|
// of the files to be mapped. Since the VM can boot with or without
|
|
// the snapshot, this function does not return a status.
|
|
static void LoadV8SnapshotFromFile(
|
|
base::File snapshot_file,
|
|
base::MemoryMappedFile::Region* snapshot_file_region,
|
|
V8SnapshotFileType snapshot_file_type);
|
|
// Similar to LoadV8SnapshotFromFile, but for the source of the natives.
|
|
// Without the natives we cannot continue, so this function contains
|
|
// release mode asserts and won't return if it fails.
|
|
static void LoadV8NativesFromFile(
|
|
base::File natives_file,
|
|
base::MemoryMappedFile::Region* natives_file_region);
|
|
|
|
#if defined(OS_ANDROID)
|
|
static base::FilePath GetNativesFilePath();
|
|
static base::FilePath GetSnapshotFilePath(
|
|
bool abi_32_bit,
|
|
V8SnapshotFileType snapshot_file_type);
|
|
#endif
|
|
|
|
#endif // V8_USE_EXTERNAL_STARTUP_DATA
|
|
|
|
};
|
|
|
|
} // namespace gin
|
|
|
|
#endif // GIN_V8_INITIALIZER_H_
|