---
name: "ACE_Concurrency_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_Concurrency_Strategy"
---

# ACE\_Concurrency\_Strategy(3)

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

## NAME

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

## SYNOPSIS

```
#include <ace/ACE_Strategies_T.h>
template<class SVC_HANDLER>
class ACE_Concurrency_Strategy
{
  public:
    ACE_Concurrency_Strategy (int flags = 0);
    virtual int activate_svc_handler (
        SVC_HANDLER *svc_handler,
        void *arg = 0
        );
    virtual ~ACE_Concurrency_Strategy (void);
    void dump (void) const;
    ACE_ALLOC_HOOK_DECLARE;
  protected:
    int flags_;
};
```

## DESCRIPTION

Default behavior is to activate the SVC\_HANDLER by calling its open method (which allows the SVC\_HANDLER to define its own concurrency strategy).  However, subclasses can override this default strategy to do more sophisticated concurrency activations (such as creating the SVC\_HANDLER as an active object via multi-threading or multi-processing).

## Factory method.

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

Activate the svc\_handler with an appropriate concurrency strategy.  The default behavior of this method is to activate the SVC\_HANDLER by calling its open method (which allows the SVC\_HANDLER to define its own concurrency strategy).

```
virtual ~ACE_Concurrency_Strategy (void);
```

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

Dump the state of an object.

```
ACE_ALLOC_HOOK_DECLARE;
```

Declare the dynamic allocation hooks.

## AUTHOR

Doug Schmidt

## LIBRARY

ace