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Diffstat (limited to 'src/liballoc/oom.rs')
| -rw-r--r-- | src/liballoc/oom.rs | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/liballoc/oom.rs b/src/liballoc/oom.rs deleted file mode 100644 index 3640156fec2..00000000000 --- a/src/liballoc/oom.rs +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2014-2015 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. - -#[cfg(target_has_atomic = "ptr")] -pub use self::imp::set_oom_handler; -use core::intrinsics; - -fn default_oom_handler() -> ! { - // The default handler can't do much more since we can't assume the presence - // of libc or any way of printing an error message. - unsafe { intrinsics::abort() } -} - -/// Common out-of-memory routine -#[cold] -#[inline(never)] -#[unstable(feature = "oom", reason = "not a scrutinized interface", - issue = "27700")] -pub fn oom() -> ! { - self::imp::oom() -} - -#[cfg(target_has_atomic = "ptr")] -mod imp { - use core::mem; - use core::sync::atomic::{AtomicPtr, Ordering}; - - static OOM_HANDLER: AtomicPtr<()> = AtomicPtr::new(super::default_oom_handler as *mut ()); - - #[inline(always)] - pub fn oom() -> ! { - let value = OOM_HANDLER.load(Ordering::SeqCst); - let handler: fn() -> ! = unsafe { mem::transmute(value) }; - handler(); - } - - /// Set a custom handler for out-of-memory conditions - /// - /// To avoid recursive OOM failures, it is critical that the OOM handler does - /// not allocate any memory itself. - #[unstable(feature = "oom", reason = "not a scrutinized interface", - issue = "27700")] - pub fn set_oom_handler(handler: fn() -> !) { - OOM_HANDLER.store(handler as *mut (), Ordering::SeqCst); - } -} - -#[cfg(not(target_has_atomic = "ptr"))] -mod imp { - #[inline(always)] - pub fn oom() -> ! { - super::default_oom_handler() - } -} |
