System.TMonitor

• Übergeordnet: System
• Methoden
• Eigenschaften
• Typen

Delphi

TMonitor = record

C++

struct DECLSPEC_DRECORD TMonitor
{
private:
    struct TWaitingThread;
    typedef TWaitingThread *PWaitingThread;
    struct DECLSPEC_DRECORD TWaitingThread
    {
    public:
        TMonitor::PWaitingThread Next;
        TThreadID Thread;
        void *WaitEvent;
    };
    struct DECLSPEC_DRECORD TSpinWait
    {
    private:
        static _DELPHI_CONST System::Int8 YieldThreshold = System::Int8(0xa);
        static _DELPHI_CONST System::Int8 Sleep1Threshold = System::Int8(0x14);
        static _DELPHI_CONST System::Int8 Sleep0Threshold = System::Int8(0x5);
        int FCount;
    public:
        void __fastcall Reset();
        void __fastcall SpinCycle();
    };
    struct DECLSPEC_DRECORD TSpinLock
    {
    private:
        int FLock;
    public:
        void __fastcall Enter();
        void __fastcall Exit();
    };
private:
    int FLockCount;
    int FRecursionCount;
    TThreadID FOwningThread;
    void *FLockEvent;
    int FSpinCount;
    PWaitingThread FWaitQueue;
    TSpinLock FQueueLock;
    static int CacheLineSize;
    static int FDefaultSpinCount;
    static void __fastcall Spin(int Iterations);
    static int __fastcall GetCacheLineSize();
    void __fastcall QueueWaiter(TWaitingThread &WaitingThread);
    void __fastcall RemoveWaiter(TWaitingThread &WaitingThread);
    PWaitingThread __fastcall DequeueWaiter();
    void * __fastcall GetEvent();
    TThreadID __fastcall CheckOwningThread();
    static void __fastcall CheckMonitorSupport();
private:
    static PMonitor __fastcall Create();
    static void __fastcall Destroy(TObject* const AObject)/* overload */;
    void __fastcall Destroy()/* overload */;
private:
    static PPMonitor __fastcall GetFieldAddress(TObject* const AObject);
    static PMonitor __fastcall GetMonitor(TObject* const AObject);
    static void __fastcall SetDefaultSpinCount(int AValue);
    bool __fastcall TryEnter()/* overload */;
    bool __fastcall Wait(PMonitor ALock, unsigned Timeout)/* overload */;
    void __fastcall Pulse()/* overload */;
    void __fastcall PulseAll()/* overload */;
private:
    bool __fastcall Enter(unsigned Timeout)/* overload */;
    void __fastcall Exit()/* overload */;
public:
    static void __fastcall SetSpinCount(TObject* const AObject, int ASpinCount);
    static void __fastcall Enter(TObject* const AObject)/* overload */;
    static bool __fastcall Enter(TObject* const AObject, unsigned Timeout)/* overload */;
    static void __fastcall Exit(TObject* const AObject)/* overload */;
    static bool __fastcall TryEnter(TObject* const AObject)/* overload */;
    static bool __fastcall Wait(TObject* const AObject, unsigned Timeout)/* overload */;
    static bool __fastcall Wait(TObject* const AObject, TObject* const ALock, unsigned Timeout)/* overload */;
    static void __fastcall Pulse(TObject* const AObject)/* overload */;
    static void __fastcall PulseAll(TObject* const AObject)/* overload */;
    /* static */ __property int DefaultSpinCount = {read=FDefaultSpinCount, write=SetDefaultSpinCount};
};

Eigenschaften

Typ	Sichtbarkeit	Quelle	Unit	Übergeordnet
record struct	public	System.pas System.hpp	System	System

Beschreibung

TMonitor stellt Methoden für die Synchronisierung des Zugriffs von mehreren Threads auf ein einzelnes Objekt bereit.

Mit den Klassenmethoden von TMonitor synchronisieren Sie den Zugriff von Threads auf Ressourcen in einer Multithread-Anwendung.

Siehe auch

• Enter

• Exit

• Wait

• Pulse