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