| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use ffi::CStr; |
| use libc::{self, c_int}; |
| use str; |
| |
| pub use sys::cloudabi::shims::os::*; |
| |
| pub fn errno() -> i32 { |
| extern "C" { |
| #[thread_local] |
| static errno: c_int; |
| } |
| |
| unsafe { errno as i32 } |
| } |
| |
| /// Gets a detailed string description for the given error number. |
| pub fn error_string(errno: i32) -> String { |
| // cloudlibc's strerror() is guaranteed to be thread-safe. There is |
| // thus no need to use strerror_r(). |
| str::from_utf8(unsafe { CStr::from_ptr(libc::strerror(errno)) }.to_bytes()) |
| .unwrap() |
| .to_owned() |
| } |
| |
| pub fn exit(code: i32) -> ! { |
| unsafe { libc::exit(code as c_int) } |
| } |