Function alloc_pkt 

pub fn alloc_pkt(pool: &Arc<MemPool>, size: usize) -> Option<Packet>

Allocates a packet from the memory pool.

Attempts to allocate a packet buffer of the specified size from the pool. The allocation will fail if:

• The pool is exhausted (no free buffers)
• The requested size exceeds the available space after reserving headroom

Arguments

• pool - The memory pool to allocate from
• size - Desired packet data size in bytes

Returns

Some(Packet) if allocation succeeded, None otherwise.

Example

use ixgbe_driver::memory::alloc_pkt;

if let Some(packet) = alloc_pkt(&pool, 1500) {
    // Use the packet
} else {
    // Handle allocation failure
}