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- // 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 "build/build_config.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-callbacks.h"
- #if defined(V8_USE_EXTERNAL_STARTUP_DATA)
- #include "gin/public/v8_snapshot_file_type.h"
- #endif
- namespace v8 {
- class StartupData;
- }
- namespace gin {
- class GIN_EXPORT V8Initializer {
- public:
- // This should be called by IsolateHolder::Initialize().
- static void Initialize(IsolateHolder::ScriptMode mode,
- const std::string js_command_line_flags = {},
- v8::OOMErrorCallback oom_error_callback = nullptr);
- // 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* snapshot);
- static void GetV8ExternalSnapshotData(const char** snapshot_data_out,
- int* snapshot_size_out);
- #if defined(V8_USE_EXTERNAL_STARTUP_DATA)
- // Load V8 snapshot from default resources, if they are available.
- static void LoadV8Snapshot(
- V8SnapshotFileType snapshot_file_type = V8SnapshotFileType::kDefault);
- // 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);
- #if BUILDFLAG(IS_ANDROID)
- 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_
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