// The pthread_attr_setstacksize symbol doesn't exist in the emscripten libc,
// so we have to not link to it to satisfy emcc's ERROR_ON_UNDEFINED_SYMBOLS.
#[cfg(not(target_os = "emscripten"))]
-unsafe fn pthread_attr_setstacksize(attr: *mut libc::pthread_attr_t,
- stack_size: libc::size_t) -> libc::c_int {
+unsafe fn pthread_attr_setstacksize(
+ attr: *mut libc::pthread_attr_t,
+ stack_size: libc::size_t,
+) -> libc::c_int {
libc::pthread_attr_setstacksize(attr, stack_size)
}
#[cfg(target_os = "emscripten")]
-unsafe fn pthread_attr_setstacksize(_attr: *mut libc::pthread_attr_t,
- _stack_size: libc::size_t) -> libc::c_int {
+unsafe fn pthread_attr_setstacksize(
+ _attr: *mut libc::pthread_attr_t,
+ _stack_size: libc::size_t,
+) -> libc::c_int {
panic!()
}
impl Thread {
// unsafe: see thread::Builder::spawn_unchecked for safety requirements
- pub unsafe fn new(stack: usize, p: Box<dyn FnOnce()>)
- -> io::Result<Thread> {
+ pub unsafe fn new(stack: usize, p: Box<dyn FnOnce()>) -> io::Result<Thread> {
let p = box p;
let mut native: libc::pthread_t = mem::zeroed();
let mut attr: libc::pthread_attr_t = mem::zeroed();
let stack_size = cmp::max(stack, min_stack_size(&attr));
- match pthread_attr_setstacksize(&mut attr,
- stack_size) {
+ match pthread_attr_setstacksize(&mut attr, stack_size) {
0 => {}
n => {
assert_eq!(n, libc::EINVAL);
// >= PTHREAD_STACK_MIN, it must be an alignment issue.
// Round up to the nearest page and try again.
let page_size = os::page_size();
- let stack_size = (stack_size + page_size - 1) &
- (-(page_size as isize - 1) as usize - 1);
- assert_eq!(libc::pthread_attr_setstacksize(&mut attr,
- stack_size), 0);
+ let stack_size =
+ (stack_size + page_size - 1) & (-(page_size as isize - 1) as usize - 1);
+ assert_eq!(libc::pthread_attr_setstacksize(&mut attr, stack_size), 0);
}
};
- let ret = libc::pthread_create(&mut native, &attr, thread_start,
- &*p as *const _ as *mut _);
+ let ret = libc::pthread_create(&mut native, &attr, thread_start, &*p as *const _ as *mut _);
assert_eq!(libc::pthread_attr_destroy(&mut attr), 0);
return if ret != 0 {
Ok(Thread { id: native })
};
- extern fn thread_start(main: *mut libc::c_void) -> *mut libc::c_void {
- unsafe { start_thread(main as *mut u8); }
+ extern "C" fn thread_start(main: *mut libc::c_void) -> *mut libc::c_void {
+ unsafe {
+ start_thread(main as *mut u8);
+ }
ptr::null_mut()
}
}
debug_assert_eq!(ret, 0);
}
- #[cfg(any(target_os = "linux",
- target_os = "android"))]
+ #[cfg(any(target_os = "linux", target_os = "android"))]
pub fn set_name(name: &CStr) {
const PR_SET_NAME: libc::c_int = 15;
// pthread wrapper only appeared in glibc 2.12, so we use syscall
}
}
- #[cfg(any(target_os = "freebsd",
- target_os = "dragonfly",
- target_os = "openbsd"))]
+ #[cfg(any(target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
pub fn set_name(name: &CStr) {
unsafe {
libc::pthread_set_name_np(libc::pthread_self(), name.as_ptr());
use crate::ffi::CString;
let cname = CString::new(&b"%s"[..]).unwrap();
unsafe {
- libc::pthread_setname_np(libc::pthread_self(), cname.as_ptr(),
- name.as_ptr() as *mut libc::c_void);
+ libc::pthread_setname_np(
+ libc::pthread_self(),
+ cname.as_ptr(),
+ name.as_ptr() as *mut libc::c_void,
+ );
}
}
}
if let Some(f) = pthread_setname_np.get() {
- unsafe { f(libc::pthread_self(), name.as_ptr()); }
+ unsafe {
+ f(libc::pthread_self(), name.as_ptr());
+ }
}
}
- #[cfg(any(target_env = "newlib",
- target_os = "haiku",
- target_os = "l4re",
- target_os = "emscripten",
- target_os = "redox"))]
+ #[cfg(any(
+ target_env = "newlib",
+ target_os = "haiku",
+ target_os = "l4re",
+ target_os = "emscripten",
+ target_os = "redox"
+ ))]
pub fn set_name(_name: &CStr) {
// Newlib, Illumos, Haiku, and Emscripten have no way to set a thread name.
}
unsafe {
let ret = libc::pthread_join(self.id, ptr::null_mut());
mem::forget(self);
- assert!(ret == 0,
- "failed to join thread: {}", io::Error::from_raw_os_error(ret));
+ assert!(ret == 0, "failed to join thread: {}", io::Error::from_raw_os_error(ret));
}
}
- pub fn id(&self) -> libc::pthread_t { self.id }
+ pub fn id(&self) -> libc::pthread_t {
+ self.id
+ }
pub fn into_id(self) -> libc::pthread_t {
let id = self.id;
}
}
-#[cfg(all(not(all(target_os = "linux", not(target_env = "musl"))),
- not(target_os = "freebsd"),
- not(target_os = "macos"),
- not(all(target_os = "netbsd", not(target_vendor = "rumprun"))),
- not(target_os = "openbsd"),
- not(target_os = "solaris")))]
+#[cfg(all(
+ not(all(target_os = "linux", not(target_env = "musl"))),
+ not(target_os = "freebsd"),
+ not(target_os = "macos"),
+ not(all(target_os = "netbsd", not(target_vendor = "rumprun"))),
+ not(target_os = "openbsd"),
+ not(target_os = "solaris")
+))]
#[cfg_attr(test, allow(dead_code))]
pub mod guard {
use crate::ops::Range;
pub type Guard = Range<usize>;
- pub unsafe fn current() -> Option<Guard> { None }
- pub unsafe fn init() -> Option<Guard> { None }
+ pub unsafe fn current() -> Option<Guard> {
+ None
+ }
+ pub unsafe fn init() -> Option<Guard> {
+ None
+ }
}
-
-#[cfg(any(all(target_os = "linux", not(target_env = "musl")),
- target_os = "freebsd",
- target_os = "macos",
- all(target_os = "netbsd", not(target_vendor = "rumprun")),
- target_os = "openbsd",
- target_os = "solaris"))]
+#[cfg(any(
+ all(target_os = "linux", not(target_env = "musl")),
+ target_os = "freebsd",
+ target_os = "macos",
+ all(target_os = "netbsd", not(target_vendor = "rumprun")),
+ target_os = "openbsd",
+ target_os = "solaris"
+))]
#[cfg_attr(test, allow(dead_code))]
pub mod guard {
use libc::{mmap, mprotect};
- use libc::{PROT_NONE, PROT_READ, PROT_WRITE, MAP_PRIVATE, MAP_ANON, MAP_FAILED, MAP_FIXED};
+ use libc::{MAP_ANON, MAP_FAILED, MAP_FIXED, MAP_PRIVATE, PROT_NONE, PROT_READ, PROT_WRITE};
use crate::ops::Range;
use crate::sys::os;
#[cfg(target_os = "macos")]
unsafe fn get_stack_start() -> Option<*mut libc::c_void> {
- let stackaddr = libc::pthread_get_stackaddr_np(libc::pthread_self()) as usize -
- libc::pthread_get_stacksize_np(libc::pthread_self());
+ let stackaddr = libc::pthread_get_stackaddr_np(libc::pthread_self()) as usize
+ - libc::pthread_get_stacksize_np(libc::pthread_self());
Some(stackaddr as *mut libc::c_void)
}
#[cfg(target_os = "openbsd")]
unsafe fn get_stack_start() -> Option<*mut libc::c_void> {
let mut current_stack: libc::stack_t = crate::mem::zeroed();
- assert_eq!(libc::pthread_stackseg_np(libc::pthread_self(),
- &mut current_stack), 0);
+ assert_eq!(libc::pthread_stackseg_np(libc::pthread_self(), &mut current_stack), 0);
let stackaddr = if libc::pthread_main_np() == 1 {
// main thread
Some(stackaddr as *mut libc::c_void)
}
- #[cfg(any(target_os = "android", target_os = "freebsd",
- target_os = "linux", target_os = "netbsd", target_os = "l4re"))]
+ #[cfg(any(
+ target_os = "android",
+ target_os = "freebsd",
+ target_os = "linux",
+ target_os = "netbsd",
+ target_os = "l4re"
+ ))]
unsafe fn get_stack_start() -> Option<*mut libc::c_void> {
let mut ret = None;
let mut attr: libc::pthread_attr_t = crate::mem::zeroed();
assert_eq!(libc::pthread_attr_init(&mut attr), 0);
#[cfg(target_os = "freebsd")]
- let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr);
+ let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr);
#[cfg(not(target_os = "freebsd"))]
- let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr);
+ let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr);
if e == 0 {
let mut stackaddr = crate::ptr::null_mut();
let mut stacksize = 0;
- assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackaddr,
- &mut stacksize), 0);
+ assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackaddr, &mut stacksize), 0);
ret = Some(stackaddr);
}
assert_eq!(libc::pthread_attr_destroy(&mut attr), 0);
// than the initial mmap() used, so we mmap() here with
// read/write permissions and only then mprotect() it to
// no permissions at all. See issue #50313.
- let result = mmap(stackaddr, PAGE_SIZE, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
+ let result = mmap(
+ stackaddr,
+ PAGE_SIZE,
+ PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON | MAP_FIXED,
+ -1,
+ 0,
+ );
if result != stackaddr || result == MAP_FAILED {
panic!("failed to allocate a guard page");
}
}
let guardaddr = stackaddr as usize;
- let offset = if cfg!(target_os = "freebsd") {
- 2
- } else {
- 1
- };
+ let offset = if cfg!(target_os = "freebsd") { 2 } else { 1 };
Some(guardaddr..guardaddr + offset * PAGE_SIZE)
}
}
- #[cfg(any(target_os = "macos",
- target_os = "openbsd",
- target_os = "solaris"))]
+ #[cfg(any(target_os = "macos", target_os = "openbsd", target_os = "solaris"))]
pub unsafe fn current() -> Option<Guard> {
let stackaddr = get_stack_start()? as usize;
Some(stackaddr - PAGE_SIZE..stackaddr)
}
- #[cfg(any(target_os = "android", target_os = "freebsd",
- target_os = "linux", target_os = "netbsd", target_os = "l4re"))]
+ #[cfg(any(
+ target_os = "android",
+ target_os = "freebsd",
+ target_os = "linux",
+ target_os = "netbsd",
+ target_os = "l4re"
+ ))]
pub unsafe fn current() -> Option<Guard> {
let mut ret = None;
let mut attr: libc::pthread_attr_t = crate::mem::zeroed();
assert_eq!(libc::pthread_attr_init(&mut attr), 0);
#[cfg(target_os = "freebsd")]
- let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr);
+ let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr);
#[cfg(not(target_os = "freebsd"))]
- let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr);
+ let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr);
if e == 0 {
let mut guardsize = 0;
assert_eq!(libc::pthread_attr_getguardsize(&attr, &mut guardsize), 0);
}
let mut stackaddr = crate::ptr::null_mut();
let mut size = 0;
- assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackaddr,
- &mut size), 0);
+ assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackaddr, &mut size), 0);
let stackaddr = stackaddr as usize;
ret = if cfg!(target_os = "freebsd") {
// No point in looking up __pthread_get_minstack() on non-glibc
// platforms.
-#[cfg(all(not(target_os = "linux"),
- not(target_os = "netbsd")))]
+#[cfg(all(not(target_os = "linux"), not(target_os = "netbsd")))]
fn min_stack_size(_: *const libc::pthread_attr_t) -> usize {
libc::PTHREAD_STACK_MIN
}
projects / rustc.git / blobdiff