37 lines
1008 B
Rust
37 lines
1008 B
Rust
// Copyright 2014 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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extern crate libc;
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use std::mem;
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use std::thread;
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#[link(name = "rust_test_helpers")]
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extern {
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fn rust_dbg_call(cb: extern "C" fn(libc::uintptr_t),
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data: libc::uintptr_t) -> libc::uintptr_t;
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}
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pub fn main() {
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unsafe {
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thread::spawn(move|| {
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let i = 100;
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rust_dbg_call(callback, mem::transmute(&i));
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}).join();
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}
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}
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extern fn callback(data: libc::uintptr_t) {
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unsafe {
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let data: *const int = mem::transmute(data);
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assert_eq!(*data, 100);
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}
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}
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