Function ckb_std::syscalls::load_header

pub fn load_header(
    buf: &mut [u8], 
    offset: usize, 
    index: usize, 
    source: Source
) -> Result<usize, SysError>

Load header

Return the loaded data length or a syscall error

Arguments

• buf - a writable buf used to receive the data
• offset - offset
• index - index of cell or header
• source - source