---
name: "ACE_TkReactor"
section: "3"
platform: "linux"
package: "libace-doc"
version: "5.0.7-4"
release: "Debian 2.2 (Potato)"
platforms: ["linux"]
url: "https://new.carta.tech/ACE_TkReactor"
---

# ACE\_TkReactor(3)

An object-oriented event demultiplexor and event handler dispatcher that uses the Tk functions.

## NAME

ACE\_TkReactor -  An object-oriented event demultiplexor and event handler dispatcher that uses the Tk functions.

## SYNOPSIS

```
class ACE_TkReactor : public ACE_Select_Reactor
{
  public:
    ACE_TkReactor (
        size_t size = DEFAULT_SIZE,
        int restart = 0,
        ACE_Sig_Handler * = 0
        );
    virtual ~ACE_TkReactor (void);
    virtual long schedule_timer (
        ACE_Event_Handler *handler,
        const void *arg,
        const ACE_Time_Value &delta_time,
        const ACE_Time_Value &interval
        );
    virtual int reset_timer_interval (
        long timer_id,
        const ACE_Time_Value &interval
        );
    virtual int cancel_timer (
        ACE_Event_Handler *handler,
        int dont_call_handle_close = 1
        );
    virtual int cancel_timer (
        long timer_id,
        const void **arg = 0,
        int dont_call_handle_close = 1
        );
  protected:
    virtual int register_handler_i (
        ACE_HANDLE handle,
        ACE_Event_Handler *handler,
        ACE_Reactor_Mask mask
        );
    virtual int register_handler_i (
        const ACE_Handle_Set &handles,
        ACE_Event_Handler *handler,
        ACE_Reactor_Mask mask
        );
    virtual int remove_handler_i (
        ACE_HANDLE handle,
        ACE_Reactor_Mask mask
        );
    virtual int remove_handler_i (
        const ACE_Handle_Set &handles,
        ACE_Reactor_Mask
        );
    virtual void remove_TkFileHandler (ACE_HANDLE handle);
    virtual int wait_for_multiple_events (
        ACE_Select_Reactor_Handle_Set &,
        ACE_Time_Value *
        );
    virtual int TkWaitForMultipleEvents (
        int,
        ACE_Select_Reactor_Handle_Set &,
        ACE_Time_Value *
        );
    ACE_TkReactorID *ids_;
    Tk_TimerToken timeout_;
  private:
    void reset_timeout (void);
    static void TimerCallbackProc (ClientData cd);
    static void InputCallbackProc (ClientData cd,int mask);
    ACE_TkReactor (const ACE_TkReactor &);
    ACE_TkReactor &operator = (const ACE_TkReactor &);
};
```

## Initialization and termination methods.

```
ACE_TkReactor (
    size_t size = DEFAULT_SIZE,
    int restart = 0,
    ACE_Sig_Handler * = 0
    );
```

```
virtual ~ACE_TkReactor (void);
```

## Timer operations.

```
virtual long schedule_timer (
    ACE_Event_Handler *handler,
    const void *arg,
    const ACE_Time_Value &delta_time,
    const ACE_Time_Value &interval
    );
```

```
virtual int reset_timer_interval (
    long timer_id,
    const ACE_Time_Value &interval
    );
```

```
virtual int cancel_timer (
    ACE_Event_Handler *handler,
    int dont_call_handle_close = 1
    );
```

```
virtual int cancel_timer (
    long timer_id,
    const void **arg = 0,
    int dont_call_handle_close = 1
    );
```

## Register timers/handles with Tk.

```
virtual int register_handler_i (
    ACE_HANDLE handle,
    ACE_Event_Handler *handler,
    ACE_Reactor_Mask mask
    );
```

Register a single handler.

```
virtual int register_handler_i (
    const ACE_Handle_Set &handles,
    ACE_Event_Handler *handler,
    ACE_Reactor_Mask mask
    );
```

Register a set of handlers.

```
virtual int remove_handler_i (
    ACE_HANDLE handle,
    ACE_Reactor_Mask mask
    );
```

Remove the handler associated with this handle.

```
virtual int remove_handler_i (
    const ACE_Handle_Set &handles,
    ACE_Reactor_Mask
    );
```

Remove a set of handles.

```
virtual void remove_TkFileHandler (ACE_HANDLE handle);
```

Removes an Tk FileHandler.

```
virtual int wait_for_multiple_events (
    ACE_Select_Reactor_Handle_Set &,
    ACE_Time_Value *
    );
```

Wait for events to occur.

```
virtual int TkWaitForMultipleEvents (
    int,
    ACE_Select_Reactor_Handle_Set &,
    ACE_Time_Value *
    );
```

Wait for Tk events to occur.

```
ACE_TkReactorID *ids_;
```

```
Tk_TimerToken timeout_;
```

## Integrate with the X callback function mechanism.

```
static void TimerCallbackProc (ClientData cd);
```

```
static void InputCallbackProc (ClientData cd,int mask);
```

```
ACE_TkReactor (const ACE_TkReactor &);
```

```
ACE_TkReactor &operator = (const ACE_TkReactor &);
```

Deny access since member-wise won't work...