Trait NextNodes 

pub unsafe trait NextNodes {
    type CNamesArray: AsRef<[*mut c_char]>;

    const C_NAMES: Self::CNamesArray;

    // Required method
    fn into_u16(self) -> u16;
}

Trait for defining next nodes of a VPP node

Typically this trait is implemented automatically using the vpp_plugin_macros::NextNodes derive macro.

Safety

• The length of C_NAMES must be greater than the maximum value that into_u16 can return (i.e. if implemented for an enum, it should match number of discriminators, and there are no gaps in the discriminator values).
• Each pointer in C_NAMES must be a valid, nul-terminated string and must stay valid for the duration of that any nodes using this NextNodes implementation are registered.

Required Associated Constants

const C_NAMES: Self::CNamesArray

Array of C names of the next nodes indexed by Self::into_u16

Required Associated Types

type CNamesArray: AsRef<[*mut c_char]>

Array type for Self::C_NAMES

Required Methods

fn into_u16(self) -> u16

The u16 value of this next node

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors