89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/*
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* Tencent is pleased to support the open source community by making Puerts available.
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* Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
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* Puerts is licensed under the BSD 3-Clause License, except for the third-party components listed in the file 'LICENSE' which may
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* be subject to their corresponding license terms. This file is subject to the terms and conditions defined in file 'LICENSE',
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* which is part of this source code package.
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*/
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#pragma once
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#include "CoreMinimal.h"
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#include "WasmCommonIncludes.h"
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#include "WasmEnv.h"
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class WasmModuleInstance;
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class WasmFunction;
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class WasmPointerSupport;
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struct WASMCORE_API WasmStackAllocCacheInfo
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{
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WASM_PTR PtrInWasm = 0;
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char* RealPtr = nullptr;
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};
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class WASMCORE_API WasmRuntime final
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{
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private:
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WasmEnv* _Env;
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IM3Runtime _Runtime;
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TArray<WasmModuleInstance*> _AllModuleInstances;
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uint16 _RuntimeSeq;
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WasmStackAllocCacheInfo CurrentStackAllocInfo;
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WasmStackAllocCacheInfo BaseStackAllocInfo;
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WASM_PTR MaxWasmStackAllocCount = 0;
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public:
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WasmEnv* GetEnv()
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{
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return _Env;
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}
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WasmStackAllocCacheInfo GetCurrentStackAllocInfo()
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{
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return CurrentStackAllocInfo;
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}
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WasmStackAllocCacheInfo AllocStackParam(int Count)
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{
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WasmStackAllocCacheInfo ret = CurrentStackAllocInfo;
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if (Count < 8)
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Count = 8;
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CurrentStackAllocInfo.PtrInWasm += Count;
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CurrentStackAllocInfo.RealPtr += Count;
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check(CurrentStackAllocInfo.PtrInWasm - BaseStackAllocInfo.PtrInWasm < MaxWasmStackAllocCount);
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return ret;
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}
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void RestoreCurrentStackAllocInfo(const WasmStackAllocCacheInfo& NewInfo)
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{
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check(NewInfo.PtrInWasm >= BaseStackAllocInfo.PtrInWasm && NewInfo.RealPtr >= BaseStackAllocInfo.RealPtr);
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CurrentStackAllocInfo = NewInfo;
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}
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WasmRuntime(WasmEnv* Env, int MaxPage = 10, int InitPage = 1, int StackSizeInBytes = 5 * 1024);
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~WasmRuntime();
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int Grow(int number);
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uint8* GetBuffer(int& Length);
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uint16 GetRuntimeSeq() const
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{
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return _RuntimeSeq;
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}
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WasmModuleInstance* GetModuleInstance(int index) const
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{
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return _AllModuleInstances[index];
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}
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WasmModuleInstance* OnModuleInstance(WasmModuleInstance* InModuleInstance);
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FORCEINLINE IM3Runtime GetRuntime() const
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{
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return _Runtime;
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}
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//转换wasm与host的地址
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void* GetPlatformAddress(WASM_PTR ptr);
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static WasmRuntime* StaticGetWasmRuntime(IM3Runtime Runtime);
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}; |