---
name: "ACE_Reactive_Strategy"
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_Reactive_Strategy"
---

# ACE\_Reactive\_Strategy(3)

Defines the interface for specifying a Reactive concurrency strategy for a SVC\_HANDLER.

## NAME

ACE\_Reactive\_Strategy -  Defines the interface for specifying a Reactive concurrency strategy for a SVC\_HANDLER.

## SYNOPSIS

```
#include <ace/ACE_Strategies_T.h>
template<class SVC_HANDLER>
class ACE_Reactive_Strategy :
  public ACE_Concurrency_Strategy <SVC_HANDLER>
{
  public:
    ACE_Reactive_Strategy (int flags = 0);
    ACE_Reactive_Strategy (
        ACE_Reactor *reactor,
        ACE_Reactor_Mask = ACE_Event_Handler::READ_MASK,
        int flags = 0
        );
    virtual int open (
        ACE_Reactor *reactor,
        ACE_Reactor_Mask = ACE_Event_Handler::READ_MASK,
        int flags = 0
        );
    virtual ~ACE_Reactive_Strategy (void);
    virtual int activate_svc_handler (
        SVC_HANDLER *svc_handler,
        void *arg = 0
        );
    void dump (void) const;
    ACE_ALLOC_HOOK_DECLARE;
  protected:
    typedef ACE_Concurrency_Strategy<SVC_HANDLER> inherited;
    ACE_Reactor *reactor_;
    ACE_Reactor_Mask mask_;
};
```

## DESCRIPTION

This class provides a strategy that registers the SVC\_HANDLER with a Reactor.

## Intialization and termination methods.

```
ACE_Reactive_Strategy (int flags = 0);
```

"Do-nothing constructor"

```
ACE_Reactive_Strategy (
    ACE_Reactor *reactor,
    ACE_Reactor_Mask = ACE_Event_Handler::READ_MASK,
    int flags = 0
    );
```

Initialize the strategy.

```
virtual int open (
    ACE_Reactor *reactor,
    ACE_Reactor_Mask = ACE_Event_Handler::READ_MASK,
    int flags = 0
    );
```

Initialize the strategy.

```
virtual ~ACE_Reactive_Strategy (void);
```

Destructor.

## Factory method.

```
virtual int activate_svc_handler (
    SVC_HANDLER *svc_handler,
    void *arg = 0
    );
```

Activate the svc\_handler by registering it with the Reactor and then calling it's open hook.

```
void dump (void) const;
```

Dump the state of an object.

```
ACE_ALLOC_HOOK_DECLARE;
```

Declare the dynamic allocation hooks.

## AUTHOR

Doug Schmidt

## LIBRARY

ace