Function solana_rbpf::syscalls::bpf_time_getns

pub fn bpf_time_getns<E: UserDefinedError>(
    _arg1: u64, 
    _arg2: u64, 
    _arg3: u64, 
    _arg4: u64, 
    _arg5: u64, 
    _ro_regions: &[MemoryRegion], 
    _rw_regions: &[MemoryRegion]
) -> Result<u64, EbpfError<E>>

Get monotonic time (since boot time) in nanoseconds. All arguments are unused.

Examples

use solana_rbpf::syscalls::bpf_time_getns;
use solana_rbpf::memory_region::MemoryRegion;
use solana_rbpf::user_error::UserError;

let regions = [MemoryRegion::default()];
let t = bpf_time_getns::<UserError>(0, 0, 0, 0, 0, &regions, &regions).unwrap();
let d =  t / 10u64.pow(9)  / 60   / 60  / 24;
let h = (t / 10u64.pow(9)  / 60   / 60) % 24;
let m = (t / 10u64.pow(9)  / 60 ) % 60;
let s = (t / 10u64.pow(9)) % 60;
let ns = t % 10u64.pow(9);
println!("Uptime: {:#x} == {} days {}:{}:{}, {} ns", t, d, h, m, s, ns);