Function initialize_networking 

pub fn initialize_networking(
    process_allocators: Vec<ProcessBuilder>,
    addresses: Vec<String>,
    my_index: usize,
    threads: usize,
    noisy: bool,
    hooks: Hooks,
) -> Result<(Vec<TcpBuilder>, CommsGuard), Error>

Initializes network connections.

process_allocators is a vector of pre-built intra-process allocator builders, one per local worker thread, that will be wrapped by the TCP layer for cross-process communication. Callers (typically Config::try_build) construct this vector by calling Process::new_vector(...).into_iter().map(ProcessBuilder::Process).collect() (or the ProcessBinary variant for the zero-copy flavor).