35 lines
990 B
Rust
35 lines
990 B
Rust
// run-pass
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// aux-build:custom.rs
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// aux-build:helper.rs
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// no-prefer-dynamic
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#![feature(allocator_api)]
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extern crate custom;
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extern crate helper;
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use std::alloc::{Global, AllocRef, System, Layout};
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use std::sync::atomic::{Ordering, AtomicUsize};
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#[global_allocator]
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static GLOBAL: custom::A = custom::A(AtomicUsize::new(0));
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fn main() {
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unsafe {
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let n = GLOBAL.0.load(Ordering::SeqCst);
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let layout = Layout::from_size_align(4, 2).unwrap();
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let (ptr, _) = Global.alloc(layout.clone()).unwrap();
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helper::work_with(&ptr);
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assert_eq!(GLOBAL.0.load(Ordering::SeqCst), n + 1);
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Global.dealloc(ptr, layout.clone());
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assert_eq!(GLOBAL.0.load(Ordering::SeqCst), n + 2);
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let (ptr, _) = System.alloc(layout.clone()).unwrap();
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assert_eq!(GLOBAL.0.load(Ordering::SeqCst), n + 2);
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helper::work_with(&ptr);
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System.dealloc(ptr, layout);
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assert_eq!(GLOBAL.0.load(Ordering::SeqCst), n + 2);
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}
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}
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