ca30691813
Make the directory structure reflect the module structure. I've always found the existing structure confusing.
50 lines
1.8 KiB
Rust
50 lines
1.8 KiB
Rust
// Copyright 2013 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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use env;
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use fmt;
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use io::prelude::*;
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use sync::atomic::{self, Ordering};
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use sys::stdio::Stderr;
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use thread;
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pub fn min_stack() -> usize {
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static MIN: atomic::AtomicUsize = atomic::AtomicUsize::new(0);
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match MIN.load(Ordering::SeqCst) {
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0 => {}
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n => return n - 1,
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}
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let amt = env::var("RUST_MIN_STACK").ok().and_then(|s| s.parse().ok());
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let amt = amt.unwrap_or(2 * 1024 * 1024);
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// 0 is our sentinel value, so ensure that we'll never see 0 after
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// initialization has run
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MIN.store(amt + 1, Ordering::SeqCst);
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amt
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}
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pub fn dumb_print(args: fmt::Arguments) {
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let _ = Stderr::new().map(|mut stderr| stderr.write_fmt(args));
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}
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// Other platforms should use the appropriate platform-specific mechanism for
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// aborting the process. If no platform-specific mechanism is available,
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// ::intrinsics::abort() may be used instead. The above implementations cover
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// all targets currently supported by libstd.
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pub fn abort(args: fmt::Arguments) -> ! {
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dumb_print(format_args!("fatal runtime error: {}\n", args));
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unsafe { ::sys::abort_internal(); }
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}
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#[allow(dead_code)] // stack overflow detection not enabled on all platforms
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pub unsafe fn report_overflow() {
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dumb_print(format_args!("\nthread '{}' has overflowed its stack\n",
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thread::current().name().unwrap_or("<unknown>")));
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}
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