| // 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(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) |
| |
| // Load V8 snapshot from user provided platform file descriptors. |
| // The offset and size arguments, if non-zero, specify the portions |
| // of the files to be loaded. Since the VM can boot with or without |
| // the snapshot, this function does not return a status. |
| static void LoadV8SnapshotFromFD(base::PlatformFile snapshot_fd, |
| int64_t snapshot_offset, |
| int64_t snapshot_size); |
| // Similar to LoadV8SnapshotFromFD, 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 LoadV8NativesFromFD(base::PlatformFile natives_fd, |
| int64_t natives_offset, |
| int64_t natives_size); |
| |
| // Load V8 snapshot from default resources, if they are available. |
| static void LoadV8Snapshot(); |
| |
| // Load V8 natives source from default resources. Contains asserts |
| // so that it will not return if natives cannot be loaded. |
| static void LoadV8Natives(); |
| |
| #if defined(OS_ANDROID) |
| static base::FilePath GetNativesFilePath(); |
| static base::FilePath GetSnapshotFilePath(bool abi_32_bit); |
| #endif |
| |
| #endif // V8_USE_EXTERNAL_STARTUP_DATA |
| |
| // Load V8 context snapshot from user provided platform file descriptors. |
| // Other details are same with LoadV8SnapshotFromFD. |
| static void LoadV8ContextSnapshotFromFD(base::PlatformFile snapshot_fd, |
| int64_t snapshot_offset, |
| int64_t snapshot_size); |
| |
| // Load V8 context snapshot from default resources, if they are available. |
| static void LoadV8ContextSnapshot(); |
| |
| // Get address and size information for currently loaded V8 context snapshot. |
| // If no snapshot is loaded, the return values are nullptr and 0. |
| static void GetV8ContextSnapshotData(const char** snapshot_data_out, |
| int* snapshot_size_out); |
| }; |
| |
| } // namespace gin |
| |
| #endif // GIN_V8_INITIALIZER_H_ |