---
name: "ACE_Typed_SV_Message"
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_Typed_SV_Message"
---

# ACE\_Typed\_SV\_Message(3)

Defines the header file for the C++ wrapper for System V message queues.

## NAME

ACE\_Typed\_SV\_Message -  Defines the header file for the C++ wrapper for System V message queues.

## SYNOPSIS

```
#include <ace/Typed_SV_Message.h>
template<class T>
class ACE_Typed_SV_Message
{
  public:
    ACE_Typed_SV_Message (
        long type = 0,
        int length = sizeof (T),
        int max_size = sizeof (T)
        );
    ACE_Typed_SV_Message (
        const T &data,
        long type = 0,
        int length = sizeof (T),
        int max_size = sizeof (T)
        );
    ~ACE_Typed_SV_Message (void);
    long type (void) const;
    void type (long type);
    int length (void) const;
    void length (int l);
    int max_size (void) const;
    void max_size (int m);
    T &data (void);
    void data (const T &data);
    void dump (void) const;
    ACE_ALLOC_HOOK_DECLARE;
  private:
    long type_;
    int length_;
    int max_;
    T data_;
};
```

## Initialization and termination methods.

```
ACE_Typed_SV_Message (
    long type = 0,
    int length = sizeof (T),
    int max_size = sizeof (T)
    );
```

```
ACE_Typed_SV_Message (
    const T &data,
    long type = 0,
    int length = sizeof (T),
    int max_size = sizeof (T)
    );
```

```
~ACE_Typed_SV_Message (void);
```

## Get/set the type of the message.

```
long type (void) const;
```

```
void type (long type);
```

## Get/set the length of the message.

```
int length (void) const;
```

```
void length (int l);
```

## Get/set the maximum size of the message.

```
int max_size (void) const;
```

```
void max_size (int m);
```

## Get/set a pointer to the data in the message.

```
T &data (void);
```

```
void data (const T &data);
```

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

Dump the state of an object.

```
ACE_ALLOC_HOOK_DECLARE;
```

Declare the dynamic allocation hooks.

## AUTHOR

Doug Schmidt

## LIBRARY

ace