Function sysctl::value_as

pub fn value_as<T>(name: &str) -> Result<Box<T>, SysctlError>

A generic function that takes a string as argument and returns a result containing the sysctl value if success, or a SysctlError on failure.

Can only be called for sysctls of type Opaque or Struct.

Example

extern crate sysctl;
extern crate libc;

use libc::c_int;

#[derive(Debug)]
#[repr(C)]
struct ClockInfo {
    hz: c_int, /* clock frequency */
    tick: c_int, /* micro-seconds per hz tick */
    spare: c_int,
    stathz: c_int, /* statistics clock frequency */
    profhz: c_int, /* profiling clock frequency */
}

fn main() {
    println!("{:?}", sysctl::value_as::<ClockInfo>("kern.clockrate"));
}