2e11009978
Much of this code hasn't been updated in quite some time and this commit does a small audit of the functionality: * Implementation functions now centralize all functionality on a locally defined `Thread` type. * The `detach` method has been removed in favor of a `Drop` implementation. This notably fixes leaking thread handles on Windows. * The `Thread` structure is now appropriately annotated with `Send` and `Sync` automatically on Windows and in a custom fashion on Unix. * The unsafety of creating a thread has been pushed out to the right boundaries now. Closes #24442
31 lines
1 KiB
Rust
31 lines
1 KiB
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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use prelude::v1::*;
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use alloc::boxed::FnBox;
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use libc;
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use sys::stack_overflow;
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use sys_common::stack;
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use usize;
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#[no_stack_check]
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pub unsafe fn start_thread(main: *mut libc::c_void) {
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// First ensure that we don't trigger __morestack (also why this has a
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// no_stack_check annotation).
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stack::record_os_managed_stack_bounds(0, usize::MAX);
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// Next, set up our stack overflow handler which may get triggered if we run
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// out of stack.
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let _handler = stack_overflow::Handler::new();
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// Finally, let's run some code.
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Box::from_raw(main as *mut Box<FnBox()>)()
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}
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