127 lines
2.7 KiB
C++
127 lines
2.7 KiB
C++
// Fill out your copyright notice in the Description page of Project Settings.
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#include "CrashActor.h"
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DEFINE_LOG_CATEGORY(LogCrash);
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// Sets default values
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ACrashActor::ACrashActor()
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{
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// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
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PrimaryActorTick.bCanEverTick = true;
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}
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// Called when the game starts or when spawned
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void ACrashActor::BeginPlay()
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{
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Super::BeginPlay();
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}
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void TestCrash(int CrashFrame) {
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auto FN = [=]() {
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int* ptr = nullptr;
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*ptr = CrashFrame + 6;
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};
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FN();
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}
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ETestCrashType CrashNameToEnum(const FString& CrashName) {
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UEnum* CrashEnumPtr = nullptr;
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if (!CrashEnumPtr)
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{
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CrashEnumPtr = FindObject<UEnum>(ANY_PACKAGE, TEXT("ETestCrashType"), true);
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}
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if (!CrashEnumPtr)
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{
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return ETestCrashType::NullPointer;
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}
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return static_cast<ETestCrashType>(CrashEnumPtr->GetValueByNameString(CrashName));
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}
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void CrashTest(FString CrashName) {
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ETestCrashType Type = CrashNameToEnum(CrashName);
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switch (Type)
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{
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case ETestCrashType::NullPointer:
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{
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volatile char* ptr = nullptr;
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*ptr += 1;
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}
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break;
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case ETestCrashType::ArrayOutOfBounds:
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{
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TArray<int32> emptyArray;
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emptyArray[0] = 10;
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}
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break;
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case ETestCrashType::BadFunctionPtr:
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{
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void(*funcPointer)() = nullptr;
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funcPointer();
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}
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break;
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case ETestCrashType::IllegalAccess:
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{
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int* addrPtr = reinterpret_cast<int*>(0x12345678);
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*addrPtr = 10;
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}
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break;
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case ETestCrashType::StackOverflow:
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{
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using CrashRecursiveFnType = void (*)(int counter);
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static CrashRecursiveFnType CrashFn;
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CrashFn = [](int counter)
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{
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volatile int data[1024]; // 每次递归分配额外栈空间加速溢出
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UE_LOG(LogTemp, Warning, TEXT("Depth: %d"), counter);
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CrashFn(data[0] + 1); // 无限递归
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};
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CrashFn(1);
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}
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break;
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case ETestCrashType::CrashOOM:
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{
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// 持续分配内存直到崩溃
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TArray<void*> MemoryBlocks;
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while (true)
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{
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// 每次分配 100MB（调整数值适配测试环境）
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void* Block = FMemory::Malloc(100 * 1024 * 1024);
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if (!Block)
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{
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// 分配失败时主动崩溃或记录日志
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UE_LOG(LogTemp, Fatal, TEXT("OOM崩溃触发！"));
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break;
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}
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MemoryBlocks.Add(Block);
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}
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}
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break;
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case ETestCrashType::Assert:
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{
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char* assertPtr = nullptr;
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check(assertPtr != nullptr);
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}
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break;
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case ETestCrashType::Ensure:
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{
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char* ensurePtr = nullptr;
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ensure(ensurePtr != nullptr);
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}
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break;
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default:
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{
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UE_LOG(LogTemp, Warning, TEXT("Uknown app termination type!"));
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}
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break;
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}
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}
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// Called every frame
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void ACrashActor::Tick(float DeltaTime)
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{
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Super::Tick(DeltaTime);
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CrashFrame = 100;
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if (Frame++ >= CrashFrame) {
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UE_LOG(LogTemp, Error, TEXT("ACrashActor:BeforeCrash"));
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CrashTest("CrashOOM");
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//TestCrash(CrashFrame);
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}
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}
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