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// Copyright 2023 the V8 project 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 V8_SANDBOX_ISOLATE_H_
#define V8_SANDBOX_ISOLATE_H_
#include "src/sandbox/code-pointer-table.h"
#include "src/sandbox/external-buffer-table.h"
#include "src/sandbox/external-pointer-table.h"
#include "src/sandbox/trusted-pointer-table.h"
namespace v8 {
namespace internal {
class Isolate;
// A reference to an Isolate that only exposes the sandbox-related parts of an
// isolate, in particular the various pointer tables. Can be used off-thread
// and implicitly constructed from both an Isolate* and a LocalIsolate*.
class V8_EXPORT_PRIVATE IsolateForSandbox final {
public:
template <typename IsolateT>
IsolateForSandbox(IsolateT* isolate); // NOLINT(runtime/explicit)
#ifdef V8_ENABLE_SANDBOX
inline ExternalPointerTable& GetExternalPointerTableFor(
ExternalPointerTag tag);
inline ExternalPointerTable::Space* GetExternalPointerTableSpaceFor(
ExternalPointerTag tag, Address host);
inline ExternalBufferTable& GetExternalBufferTableFor(ExternalBufferTag tag);
inline ExternalBufferTable::Space* GetExternalBufferTableSpaceFor(
ExternalBufferTag tag, Address host);
inline CodePointerTable::Space* GetCodePointerTableSpaceFor(
Address owning_slot);
inline TrustedPointerTable& GetTrustedPointerTable();
inline TrustedPointerTable::Space* GetTrustedPointerTableSpace();
#endif // V8_ENABLE_SANDBOX
private:
#ifdef V8_ENABLE_SANDBOX
Isolate* const isolate_;
#endif // V8_ENABLE_SANDBOX
};
class V8_EXPORT_PRIVATE IsolateForPointerCompression final {
public:
template <typename IsolateT>
IsolateForPointerCompression(IsolateT* isolate); // NOLINT(runtime/explicit)
#ifdef V8_COMPRESS_POINTERS
inline ExternalPointerTable& GetExternalPointerTableFor(
ExternalPointerTag tag);
inline ExternalPointerTable::Space* GetExternalPointerTableSpaceFor(
ExternalPointerTag tag, Address host);
inline ExternalPointerTable& GetCppHeapPointerTable();
inline ExternalPointerTable::Space* GetCppHeapPointerTableSpace();
#endif // V8_COMPRESS_POINTERS
private:
#ifdef V8_COMPRESS_POINTERS
Isolate* const isolate_;
#endif // V8_COMPRESS_POINTERS
};
} // namespace internal
} // namespace v8
#endif // V8_SANDBOX_ISOLATE_H_