---
name: "ACE_Event_Handler_Handle_Timeout_Upcall"
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_Event_Handler_Handle_Timeout_Upcall"
---

# ACE\_Event\_Handler\_Handle\_Timeout\_Upcall(3)

Functor for Timer\_Queues.

## NAME

ACE\_Event\_Handler\_Handle\_Timeout\_Upcall -  Functor for Timer\_Queues.

## SYNOPSIS

```
#include <ace/Timer_Queue_T.h>
template<class ACE_LOCK>
class ACE_Event_Handler_Handle_Timeout_Upcall
{
  public:
        typedef ACE_Timer_Queue_T<ACE_Event_Handler *, ACE_Event_Handler_Handle_Timeout_Upcall<ACE_LOCK>, ACE_LOCK> TIMER_QUEUE;

    ACE_Event_Handler_Handle_Timeout_Upcall (void);
    ~ACE_Event_Handler_Handle_Timeout_Upcall (void);
    int timeout (
        TIMER_QUEUE &timer_queue,
        ACE_Event_Handler *handler,
        const void *arg,
        const ACE_Time_Value &cur_time
        );
    int cancellation (
        TIMER_QUEUE &timer_queue,
        ACE_Event_Handler *handler
        );
    int deletion (
        TIMER_QUEUE &timer_queue,
        ACE_Event_Handler *handler,
        const void *arg
        );
};
```

## DESCRIPTION

This class implements the functor required by the Timer Queue to call handle\_timeout on ACE\_Event\_Handlers.

## Initialization and termination methods.

```
ACE_Event_Handler_Handle_Timeout_Upcall (void);
```

Constructor.

```
~ACE_Event_Handler_Handle_Timeout_Upcall (void);
```

Destructor.

```
int timeout (
    TIMER_QUEUE &timer_queue,
    ACE_Event_Handler *handler,
    const void *arg,
    const ACE_Time_Value &cur_time
    );
```

This method is called when the timer expires

```
int cancellation (
    TIMER_QUEUE &timer_queue,
    ACE_Event_Handler *handler
    );
```

This method is called when the timer is canceled

```
int deletion (
    TIMER_QUEUE &timer_queue,
    ACE_Event_Handler *handler,
    const void *arg
    );
```

This method is called when the timer queue is destroyed and the timer is still contained in it

## AUTHOR

Doug Schmidt, Irfan Pyarali, and Darrell Brunsch

## LIBRARY

ace