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// 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) } }