63 lines
2.1 KiB
Rust
63 lines
2.1 KiB
Rust
// Copyright 2012 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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#[abi = "rust-intrinsic"]
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extern mod rusti {
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pub fn atomic_cxchg(dst: &mut int, old: int, src: int) -> int;
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pub fn atomic_cxchg_acq(dst: &mut int, old: int, src: int) -> int;
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pub fn atomic_cxchg_rel(dst: &mut int, old: int, src: int) -> int;
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pub fn atomic_xchg(dst: &mut int, src: int) -> int;
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pub fn atomic_xchg_acq(dst: &mut int, src: int) -> int;
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pub fn atomic_xchg_rel(dst: &mut int, src: int) -> int;
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pub fn atomic_xadd(dst: &mut int, src: int) -> int;
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pub fn atomic_xadd_acq(dst: &mut int, src: int) -> int;
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pub fn atomic_xadd_rel(dst: &mut int, src: int) -> int;
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pub fn atomic_xsub(dst: &mut int, src: int) -> int;
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pub fn atomic_xsub_acq(dst: &mut int, src: int) -> int;
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pub fn atomic_xsub_rel(dst: &mut int, src: int) -> int;
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}
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pub fn main() {
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unsafe {
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let x = ~mut 1;
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assert rusti::atomic_cxchg(x, 1, 2) == 1;
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assert *x == 2;
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assert rusti::atomic_cxchg_acq(x, 1, 3) == 2;
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assert *x == 2;
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assert rusti::atomic_cxchg_rel(x, 2, 1) == 2;
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assert *x == 1;
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assert rusti::atomic_xchg(x, 0) == 1;
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assert *x == 0;
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assert rusti::atomic_xchg_acq(x, 1) == 0;
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assert *x == 1;
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assert rusti::atomic_xchg_rel(x, 0) == 1;
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assert *x == 0;
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assert rusti::atomic_xadd(x, 1) == 0;
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assert rusti::atomic_xadd_acq(x, 1) == 1;
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assert rusti::atomic_xadd_rel(x, 1) == 2;
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assert *x == 3;
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assert rusti::atomic_xsub(x, 1) == 3;
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assert rusti::atomic_xsub_acq(x, 1) == 2;
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assert rusti::atomic_xsub_rel(x, 1) == 1;
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assert *x == 0;
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}
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}
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