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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use alloc::boxed::FnBox;
use libc;
use cmp;
use ffi::CStr;
use io;
use mem;
use ptr;
use sys_common::thread::start_thread;
use time::Duration;
use libctru::{svcSleepThread, svcGetThreadPriority};
use libctru::{threadCreate, threadJoin, threadFree};
use libctru::Thread as ThreadHandle;
pub struct Thread {
handle: ThreadHandle,
}
// Some platforms may have pthread_t as a pointer in which case we still want
// a thread to be Send/Sync
unsafe impl Send for Thread {}
unsafe impl Sync for Thread {}
impl Thread {
pub unsafe fn new<'a>(stack: usize, p: Box<FnBox() + 'a>) -> io::Result<Thread> {
let p = box p;
let stack_size = cmp::max(stack, 0x10000);
// this retrieves the main thread's priority value. child threads need
// to be spawned with a greater priority (smaller priority value) than
// the main thread
let mut priority = 0;
svcGetThreadPriority(&mut priority, 0xFFFF8000);
priority -= 1;
let handle = threadCreate(Some(thread_func), &*p as *const _ as *mut _,
stack_size, priority, -2, false);
return if handle == ptr::null_mut() {
Err(io::Error::from_raw_os_error(libc::EAGAIN))
} else {
mem::forget(p); // ownership passed to the new thread
Ok(Thread { handle: handle })
};
extern "C" fn thread_func(start: *mut libc::c_void) {
unsafe { start_thread(start) }
}
}
pub fn yield_now() {
unimplemented!()
}
pub fn set_name(_name: &CStr) {
// can't set thread names on the 3DS
}
pub fn sleep(dur: Duration) {
unsafe {
let nanos = dur.as_secs() * 1_000_000_000 + dur.subsec_nanos() as u64;
svcSleepThread(nanos as i64)
}
}
pub fn join(self) {
unsafe {
let ret = threadJoin(self.handle, u64::max_value());
threadFree(self.handle);
mem::forget(self);
debug_assert_eq!(ret, 0);
}
}
pub fn id(&self) -> usize {
unimplemented!()
}
pub fn into_id(self) -> usize {
unimplemented!()
}
}
pub mod guard {
pub unsafe fn current() -> Option<usize> { None }
pub unsafe fn init() -> Option<usize> { None }
}
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