110 lines
2.7 KiB
Rust
110 lines
2.7 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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#[allow(dead_code)];
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#[cfg(unix)]
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use libc::c_int;
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#[cfg(unix)]
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use ptr::null;
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#[cfg(windows)]
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use libc::types::os::arch::extra::{DWORD, LPVOID, BOOL};
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#[cfg(unix)]
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pub type Key = pthread_key_t;
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#[cfg(unix)]
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pub unsafe fn create(key: &mut Key) {
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assert_eq!(0, pthread_key_create(key, null()));
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}
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#[cfg(unix)]
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pub unsafe fn set(key: Key, value: *mut u8) {
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assert_eq!(0, pthread_setspecific(key, value));
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}
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#[cfg(unix)]
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pub unsafe fn get(key: Key) -> *mut u8 {
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pthread_getspecific(key)
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}
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#[cfg(unix)]
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pub unsafe fn destroy(key: Key) {
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assert_eq!(0, pthread_key_delete(key));
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}
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#[cfg(target_os="macos")]
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#[allow(non_camel_case_types)] // foreign type
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type pthread_key_t = ::libc::c_ulong;
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#[cfg(target_os="linux")]
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#[cfg(target_os="freebsd")]
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#[cfg(target_os="android")]
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#[allow(non_camel_case_types)] // foreign type
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type pthread_key_t = ::libc::c_uint;
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#[cfg(unix)]
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extern {
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fn pthread_key_create(key: *mut pthread_key_t, dtor: *u8) -> c_int;
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fn pthread_key_delete(key: pthread_key_t) -> c_int;
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fn pthread_getspecific(key: pthread_key_t) -> *mut u8;
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fn pthread_setspecific(key: pthread_key_t, value: *mut u8) -> c_int;
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}
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#[cfg(windows)]
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pub type Key = DWORD;
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#[cfg(windows)]
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pub unsafe fn create(key: &mut Key) {
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static TLS_OUT_OF_INDEXES: DWORD = 0xFFFFFFFF;
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*key = TlsAlloc();
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assert!(*key != TLS_OUT_OF_INDEXES);
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}
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#[cfg(windows)]
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pub unsafe fn set(key: Key, value: *mut u8) {
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assert!(0 != TlsSetValue(key, value as *mut ::libc::c_void))
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}
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#[cfg(windows)]
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pub unsafe fn get(key: Key) -> *mut u8 {
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TlsGetValue(key) as *mut u8
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}
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#[cfg(windows)]
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pub unsafe fn destroy(key: Key) {
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assert!(TlsFree(key) != 0);
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}
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#[cfg(windows)]
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extern "system" {
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fn TlsAlloc() -> DWORD;
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fn TlsFree(dwTlsIndex: DWORD) -> BOOL;
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fn TlsGetValue(dwTlsIndex: DWORD) -> LPVOID;
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fn TlsSetValue(dwTlsIndex: DWORD, lpTlsvalue: LPVOID) -> BOOL;
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}
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#[test]
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fn tls_smoke_test() {
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use cast::transmute;
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unsafe {
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let mut key = 0;
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let value = ~20;
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create(&mut key);
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set(key, transmute(value));
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let value: ~int = transmute(get(key));
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assert_eq!(value, ~20);
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let value = ~30;
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set(key, transmute(value));
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let value: ~int = transmute(get(key));
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assert_eq!(value, ~30);
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}
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}
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