clock

solana_program_runtime::sysvar_cache::get_sysvar_with_account_check

Function clock 

Source 
pub fn clock(
    invoke_context: &InvokeContext<'_, '_>,
    instruction_context: &InstructionContext<'_, '_>,
    instruction_account_index: IndexOfAccount,
) -> Result<Arc<Clock>, InstructionError>
👎Deprecated since 3.1.0: This crate has been marked for formal inclusion in the Agave Unstable API. From v4.0.0 onward, the agave-unstable-api crate feature must be specified to acknowledge use of an interface that may break without warning.