Files
integration/Source/Integration/LockedWrapper.h

60 lines
1.3 KiB
C++

#pragma once
#include "CoreMinimal.h"
#include "enginewrapper.hpp"
// Class FLockableWrapper
//
// Contains the EngineWrapper and a Mutex to lock it.
// This class has no methods. To access the EngineWrapper,
// construct a FLockedWrapper, and then dereference it
// using operator right arrow.
//
class FLockableWrapper {
private:
FCriticalSection Mutex;
EngineWrapper Wrapper;
public:
friend class FLockedWrapper;
};
class FLockedWrapper {
private:
FLockableWrapper& Lockable;
public:
// The constructor of the FLockedWrapper claims the mutex.
FLockedWrapper(FLockableWrapper& w) : Lockable(w) {
Lockable.Mutex.Lock();
}
// The destructor of the FLockedWrapper releases the mutex.
~FLockedWrapper() {
Lockable.Mutex.Unlock();
}
// Operator right arrow accesses the EngineWrapper.
EngineWrapper* operator ->() {
return &Lockable.Wrapper;
}
// Get a pointer to the enginewrapper. This is not
// very safe because you could keep the pointer after
// the LockedWrapper is destroyed. Don't do that.
EngineWrapper* Get() {
return &Lockable.Wrapper;
}
// Initialize the engine wrapper if it's not already.
//
// All this does is open the DLL and hook up all
// the function pointers in the wrapper to point into
// the DLL.
//
void InitWrapper();
// Fetch Stdout as a string.
//
FString FetchStdout();
};