Struct CustomEntropySource 

pub struct CustomEntropySource {
    pub callback: unsafe extern "C" fn(*mut u8, usize, *mut u8) -> i32,
    pub context: EntropyContext,
    pub quality: EntropyQuality,
    pub config: CustomEntropyConfig,
    pub source_id: &'static str,
}

Custom entropy source registration

This structure manages the registration of custom entropy sources for the current thread.

Fields

callback: unsafe extern "C" fn(*mut u8, usize, *mut u8) -> i32

Callback function for entropy generation

context: EntropyContext

Context data for the callback

quality: EntropyQuality

Quality level of this entropy source

config: CustomEntropyConfig

Configuration for this entropy source

source_id: &'static str

Source identifier

Implementations

impl CustomEntropySource

pub const unsafe fn new( callback: unsafe extern "C" fn(*mut u8, usize, *mut u8) -> i32, context: EntropyContext, quality: EntropyQuality, config: CustomEntropyConfig, source_id: &'static str, ) -> CustomEntropySource

Create a new custom entropy source

Arguments

• callback - Function to call for entropy generation
• context - Context data for the callback
• quality - Quality level of this entropy source
• config - Configuration for this entropy source
• source_id - Unique identifier for this source

Safety

The callback function must be thread-safe and must not cause undefined behavior. The context.user_data must be valid for context.size bytes if context.size > 0.

pub fn callback(&self) -> unsafe extern "C" fn(*mut u8, usize, *mut u8) -> i32

Get the callback function

pub fn context(&self) -> EntropyContext

Get the context data

pub fn quality(&self) -> EntropyQuality

Get the quality level

pub fn config(&self) -> &CustomEntropyConfig

Get the configuration

pub fn source_id(&self) -> &'static str

Get the source identifier

pub fn generate_entropy(&self, dest: &mut [u8]) -> Result<(), Error>

Generate entropy using this source

Arguments

• dest - Buffer to fill with random bytes

Errors

Returns an error if entropy generation fails or if the generated entropy doesn’t meet quality requirements.

Trait Implementations

impl Debug for CustomEntropySource

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for CustomEntropySource

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.