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// Copyright 2016 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.
#![allow(dead_code, missing_docs, bad_style)]
pub extern crate syscall;
use io::{self, ErrorKind};
pub mod args;
pub mod backtrace;
pub mod condvar;
pub mod env;
pub mod ext;
pub mod fast_thread_local;
pub mod fd;
pub mod fs;
pub mod memchr;
pub mod mutex;
pub mod net;
pub mod os;
pub mod os_str;
pub mod path;
pub mod pipe;
pub mod process;
pub mod rand;
pub mod rwlock;
pub mod stack_overflow;
pub mod stdio;
pub mod thread;
pub mod thread_local;
pub mod time;
#[cfg(not(test))]
pub fn init() {
use alloc::oom;
oom::set_oom_handler(oom_handler);
// A nicer handler for out-of-memory situations than the default one. This
// one prints a message to stderr before aborting. It is critical that this
// code does not allocate any memory since we are in an OOM situation. Any
// errors are ignored while printing since there's nothing we can do about
// them and we are about to exit anyways.
fn oom_handler() -> ! {
use intrinsics;
let msg = "fatal runtime error: out of memory\n";
unsafe {
let _ = syscall::write(2, msg.as_bytes());
intrinsics::abort();
}
}
}
pub fn decode_error_kind(errno: i32) -> ErrorKind {
match errno {
syscall::ECONNREFUSED => ErrorKind::ConnectionRefused,
syscall::ECONNRESET => ErrorKind::ConnectionReset,
syscall::EPERM | syscall::EACCES => ErrorKind::PermissionDenied,
syscall::EPIPE => ErrorKind::BrokenPipe,
syscall::ENOTCONN => ErrorKind::NotConnected,
syscall::ECONNABORTED => ErrorKind::ConnectionAborted,
syscall::EADDRNOTAVAIL => ErrorKind::AddrNotAvailable,
syscall::EADDRINUSE => ErrorKind::AddrInUse,
syscall::ENOENT => ErrorKind::NotFound,
syscall::EINTR => ErrorKind::Interrupted,
syscall::EINVAL => ErrorKind::InvalidInput,
syscall::ETIMEDOUT => ErrorKind::TimedOut,
syscall::EEXIST => ErrorKind::AlreadyExists,
// These two constants can have the same value on some systems,
// but different values on others, so we can't use a match
// clause
x if x == syscall::EAGAIN || x == syscall::EWOULDBLOCK =>
ErrorKind::WouldBlock,
_ => ErrorKind::Other,
}
}
pub fn cvt(result: Result<usize, syscall::Error>) -> io::Result<usize> {
result.map_err(|err| io::Error::from_raw_os_error(err.errno))
}
/// On Redox, use an illegal instruction to abort
pub unsafe fn abort_internal() -> ! {
::core::intrinsics::abort();
}
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