Struct SysExOutputPool 

pub struct SysExOutputPool { /* private fields */ }

Pre-allocated pool for SysEx output messages.

Avoids heap allocation during audio processing by pre-allocating a fixed number of buffer slots at initialization time.

Implementations

impl SysExOutputPool

pub const DEFAULT_SLOTS: usize = 16

Default number of SysEx slots per process block.

pub const DEFAULT_BUFFER_SIZE: usize = 512

Default maximum size per SysEx message.

pub fn new() -> Self

Create a new pool with default capacity.

pub fn with_capacity(slots: usize, buffer_size: usize) -> Self

Create a new pool with the specified capacity.

Pre-allocates all buffers to avoid heap allocation during process().

pub fn clear(&mut self)

Clear the pool for reuse. O(1) operation.

Note: This does NOT clear the fallback buffer, which is drained separately at the start of the next process block.

pub fn allocate(&mut self, data: &[u8]) -> Option<(*const u8, usize)>

Allocate a slot and copy SysEx data into it.

Returns Some((pointer, length)) on success, None if pool exhausted. The pointer is stable until clear() is called.

Sets the overflow flag when the pool is exhausted. With sysex-heap-fallback feature: overflow messages are stored in a heap-backed fallback buffer instead of being dropped.

pub fn allocate_slice(&mut self, data: &[u8]) -> Option<&[u8]>

Allocate and return a slice reference instead of raw pointer.

Safer API for contexts that don’t need raw pointers.

pub fn has_overflowed(&self) -> bool

Check if the pool overflowed during this block.

pub fn capacity(&self) -> usize

Get the pool’s slot capacity.

pub fn used(&self) -> usize

Get number of slots currently used.

Trait Implementations

impl Default for SysExOutputPool

fn default() -> Self

Returns the “default value” for a type.