95 lines
2.9 KiB
Rust
95 lines
2.9 KiB
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(dead_code, missing_docs, bad_style)]
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use io::{self, ErrorKind};
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pub mod args;
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#[cfg(feature = "backtrace")]
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pub mod backtrace;
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pub mod condvar;
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pub mod env;
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pub mod ext;
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pub mod fast_thread_local;
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pub mod fd;
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pub mod fs;
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pub mod memchr;
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pub mod mutex;
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pub mod net;
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pub mod os;
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pub mod os_str;
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pub mod path;
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pub mod pipe;
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pub mod process;
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pub mod rand;
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pub mod rwlock;
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pub mod stack_overflow;
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pub mod stdio;
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pub mod syscall;
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pub mod thread;
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pub mod thread_local;
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pub mod time;
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#[cfg(not(test))]
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pub fn init() {
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use alloc::oom;
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oom::set_oom_handler(oom_handler);
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// A nicer handler for out-of-memory situations than the default one. This
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// one prints a message to stderr before aborting. It is critical that this
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// code does not allocate any memory since we are in an OOM situation. Any
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// errors are ignored while printing since there's nothing we can do about
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// them and we are about to exit anyways.
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fn oom_handler() -> ! {
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use intrinsics;
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let msg = "fatal runtime error: out of memory\n";
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unsafe {
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let _ = syscall::write(2, msg.as_bytes());
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intrinsics::abort();
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}
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}
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}
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pub fn decode_error_kind(errno: i32) -> ErrorKind {
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match errno {
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syscall::ECONNREFUSED => ErrorKind::ConnectionRefused,
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syscall::ECONNRESET => ErrorKind::ConnectionReset,
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syscall::EPERM | syscall::EACCES => ErrorKind::PermissionDenied,
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syscall::EPIPE => ErrorKind::BrokenPipe,
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syscall::ENOTCONN => ErrorKind::NotConnected,
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syscall::ECONNABORTED => ErrorKind::ConnectionAborted,
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syscall::EADDRNOTAVAIL => ErrorKind::AddrNotAvailable,
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syscall::EADDRINUSE => ErrorKind::AddrInUse,
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syscall::ENOENT => ErrorKind::NotFound,
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syscall::EINTR => ErrorKind::Interrupted,
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syscall::EINVAL => ErrorKind::InvalidInput,
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syscall::ETIMEDOUT => ErrorKind::TimedOut,
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syscall::EEXIST => ErrorKind::AlreadyExists,
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// These two constants can have the same value on some systems,
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// but different values on others, so we can't use a match
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// clause
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x if x == syscall::EAGAIN || x == syscall::EWOULDBLOCK =>
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ErrorKind::WouldBlock,
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_ => ErrorKind::Other,
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}
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}
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pub fn cvt(result: Result<usize, syscall::Error>) -> io::Result<usize> {
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result.map_err(|err| io::Error::from_raw_os_error(err.errno))
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}
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/// On Redox, use an illegal instruction to abort
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pub unsafe fn abort_internal() -> ! {
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::core::intrinsics::abort();
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}
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