Delete ctr-std to use my fork of the rust repo instead

1 files changed, 0 insertions, 458 deletions

diff --git a/ctr-std/src/sys/unix/thread.rs b/ctr-std/src/sys/unix/thread.rs
deleted file mode 100644
index f3a45d2..0000000
--- a/ctr-std/src/sys/unix/thread.rs
+++ /dev/null
@@ -1,458 +0,0 @@
-// Copyright 2014-2015 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 boxed::FnBox;
-use cmp;
-use ffi::CStr;
-use io;
-use libc;
-use mem;
-use ptr;
-use sys::os;
-use time::Duration;
-
-use sys_common::thread::*;
-
-#[cfg(not(target_os = "l4re"))]
-pub const DEFAULT_MIN_STACK_SIZE: usize = 2 * 1024 * 1024;
-#[cfg(target_os = "l4re")]
-pub const DEFAULT_MIN_STACK_SIZE: usize = 1024 * 1024;
-
-pub struct Thread {
-    id: libc::pthread_t,
-}
-
-// 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 {}
-
-// 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 {
-    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 {
-    panic!()
-}
-
-impl Thread {
-    pub unsafe fn new<'a>(stack: usize, p: Box<dyn FnBox() + 'a>)
-                          -> io::Result<Thread> {
-        let p = box p;
-        let mut native: libc::pthread_t = mem::zeroed();
-        let mut attr: libc::pthread_attr_t = mem::zeroed();
-        assert_eq!(libc::pthread_attr_init(&mut attr), 0);
-
-        let stack_size = cmp::max(stack, min_stack_size(&attr));
-
-        match pthread_attr_setstacksize(&mut attr,
-                                        stack_size) {
-            0 => {}
-            n => {
-                assert_eq!(n, libc::EINVAL);
-                // EINVAL means |stack_size| is either too small or not a
-                // multiple of the system page size.  Because it's definitely
-                // >= 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 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 {
-            Err(io::Error::from_raw_os_error(ret))
-        } else {
-            mem::forget(p); // ownership passed to pthread_create
-            Ok(Thread { id: native })
-        };
-
-        extern fn thread_start(main: *mut libc::c_void) -> *mut libc::c_void {
-            unsafe { start_thread(main as *mut u8); }
-            ptr::null_mut()
-        }
-    }
-
-    pub fn yield_now() {
-        let ret = unsafe { libc::sched_yield() };
-        debug_assert_eq!(ret, 0);
-    }
-
-    #[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
-        // directly.
-        unsafe {
-            libc::prctl(PR_SET_NAME, name.as_ptr() as libc::c_ulong, 0, 0, 0);
-        }
-    }
-
-    #[cfg(any(target_os = "freebsd",
-              target_os = "dragonfly",
-              target_os = "bitrig",
-              target_os = "openbsd"))]
-    pub fn set_name(name: &CStr) {
-        unsafe {
-            libc::pthread_set_name_np(libc::pthread_self(), name.as_ptr());
-        }
-    }
-
-    #[cfg(any(target_os = "macos", target_os = "ios"))]
-    pub fn set_name(name: &CStr) {
-        unsafe {
-            libc::pthread_setname_np(name.as_ptr());
-        }
-    }
-
-    #[cfg(target_os = "netbsd")]
-    pub fn set_name(name: &CStr) {
-        use 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);
-        }
-    }
-    #[cfg(any(target_env = "newlib",
-              target_os = "solaris",
-              target_os = "haiku",
-              target_os = "l4re",
-              target_os = "emscripten",
-              target_os = "hermit"))]
-    pub fn set_name(_name: &CStr) {
-        // Newlib, Illumos, Haiku, and Emscripten have no way to set a thread name.
-    }
-    #[cfg(target_os = "fuchsia")]
-    pub fn set_name(_name: &CStr) {
-        // FIXME: determine whether Fuchsia has a way to set a thread name.
-    }
-
-    pub fn sleep(dur: Duration) {
-        let mut secs = dur.as_secs();
-        let mut nsecs = dur.subsec_nanos() as _;
-
-        // If we're awoken with a signal then the return value will be -1 and
-        // nanosleep will fill in `ts` with the remaining time.
-        unsafe {
-            while secs > 0 || nsecs > 0 {
-                let mut ts = libc::timespec {
-                    tv_sec: cmp::min(libc::time_t::max_value() as u64, secs) as libc::time_t,
-                    tv_nsec: nsecs,
-                };
-                secs -= ts.tv_sec as u64;
-                if libc::nanosleep(&ts, &mut ts) == -1 {
-                    assert_eq!(os::errno(), libc::EINTR);
-                    secs += ts.tv_sec as u64;
-                    nsecs = ts.tv_nsec;
-                } else {
-                    nsecs = 0;
-                }
-            }
-        }
-    }
-
-    pub fn join(self) {
-        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));
-        }
-    }
-
-    pub fn id(&self) -> libc::pthread_t { self.id }
-
-    pub fn into_id(self) -> libc::pthread_t {
-        let id = self.id;
-        mem::forget(self);
-        id
-    }
-}
-
-impl Drop for Thread {
-    fn drop(&mut self) {
-        let ret = unsafe { libc::pthread_detach(self.id) };
-        debug_assert_eq!(ret, 0);
-    }
-}
-
-#[cfg(all(not(all(target_os = "linux", not(target_env = "musl"))),
-          not(target_os = "freebsd"),
-          not(target_os = "macos"),
-          not(target_os = "bitrig"),
-          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 ops::Range;
-    pub type Guard = Range<usize>;
-    pub unsafe fn current() -> Option<Guard> { None }
-    pub unsafe fn init() -> Option<Guard> { None }
-    pub unsafe fn deinit() {}
-}
-
-
-#[cfg(any(all(target_os = "linux", not(target_env = "musl")),
-          target_os = "freebsd",
-          target_os = "macos",
-          target_os = "bitrig",
-          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;
-    use libc::{mmap, mprotect};
-    use libc::{PROT_NONE, PROT_READ, PROT_WRITE, MAP_PRIVATE, MAP_ANON, MAP_FAILED, MAP_FIXED};
-    use ops::Range;
-    use sys::os;
-
-    // This is initialized in init() and only read from after
-    static mut PAGE_SIZE: usize = 0;
-
-    pub type Guard = Range<usize>;
-
-    #[cfg(target_os = "solaris")]
-    unsafe fn get_stack_start() -> Option<*mut libc::c_void> {
-        let mut current_stack: libc::stack_t = ::mem::zeroed();
-        assert_eq!(libc::stack_getbounds(&mut current_stack), 0);
-        Some(current_stack.ss_sp)
-    }
-
-    #[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());
-        Some(stackaddr as *mut libc::c_void)
-    }
-
-    #[cfg(any(target_os = "openbsd", target_os = "bitrig"))]
-    unsafe fn get_stack_start() -> Option<*mut libc::c_void> {
-        let mut current_stack: libc::stack_t = ::mem::zeroed();
-        assert_eq!(libc::pthread_stackseg_np(libc::pthread_self(),
-                                             &mut current_stack), 0);
-
-        let extra = if cfg!(target_os = "bitrig") {3} else {1} * PAGE_SIZE;
-        let stackaddr = if libc::pthread_main_np() == 1 {
-            // main thread
-            current_stack.ss_sp as usize - current_stack.ss_size + extra
-        } else {
-            // new thread
-            current_stack.ss_sp as usize - current_stack.ss_size
-        };
-        Some(stackaddr as *mut libc::c_void)
-    }
-
-    #[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 = ::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);
-        #[cfg(not(target_os = "freebsd"))]
-            let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr);
-        if e == 0 {
-            let mut stackaddr = ::ptr::null_mut();
-            let 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);
-        ret
-    }
-
-    // Precondition: PAGE_SIZE is initialized.
-    unsafe fn get_stack_start_aligned() -> Option<*mut libc::c_void> {
-        assert!(PAGE_SIZE != 0);
-        let stackaddr = get_stack_start()?;
-
-        // Ensure stackaddr is page aligned! A parent process might
-        // have reset RLIMIT_STACK to be non-page aligned. The
-        // pthread_attr_getstack() reports the usable stack area
-        // stackaddr < stackaddr + stacksize, so if stackaddr is not
-        // page-aligned, calculate the fix such that stackaddr <
-        // new_page_aligned_stackaddr < stackaddr + stacksize
-        let remainder = (stackaddr as usize) % PAGE_SIZE;
-        Some(if remainder == 0 {
-            stackaddr
-        } else {
-            ((stackaddr as usize) + PAGE_SIZE - remainder) as *mut libc::c_void
-        })
-    }
-
-    pub unsafe fn init() -> Option<Guard> {
-        PAGE_SIZE = os::page_size();
-
-        let stackaddr = get_stack_start_aligned()?;
-
-        if cfg!(target_os = "linux") {
-            // Linux doesn't allocate the whole stack right away, and
-            // the kernel has its own stack-guard mechanism to fault
-            // when growing too close to an existing mapping.  If we map
-            // our own guard, then the kernel starts enforcing a rather
-            // large gap above that, rendering much of the possible
-            // stack space useless.  See #43052.
-            //
-            // Instead, we'll just note where we expect rlimit to start
-            // faulting, so our handler can report "stack overflow", and
-            // trust that the kernel's own stack guard will work.
-            let stackaddr = stackaddr as usize;
-            Some(stackaddr - PAGE_SIZE..stackaddr)
-        } else {
-            // Reallocate the last page of the stack.
-            // This ensures SIGBUS will be raised on
-            // stack overflow.
-            // Systems which enforce strict PAX MPROTECT do not allow
-            // to mprotect() a mapping with less restrictive permissions
-            // 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);
-            if result != stackaddr || result == MAP_FAILED {
-                panic!("failed to allocate a guard page");
-            }
-
-            let result = mprotect(stackaddr, PAGE_SIZE, PROT_NONE);
-            if result != 0 {
-                panic!("failed to protect the guard page");
-            }
-
-            let guardaddr = stackaddr as usize;
-            let offset = if cfg!(target_os = "freebsd") {
-                2
-            } else {
-                1
-            };
-
-            Some(guardaddr..guardaddr + offset * PAGE_SIZE)
-        }
-    }
-
-    pub unsafe fn deinit() {
-        if !cfg!(target_os = "linux") {
-            if let Some(stackaddr) = get_stack_start_aligned() {
-                // Remove the protection on the guard page.
-                // FIXME: we cannot unmap the page, because when we mmap()
-                // above it may be already mapped by the OS, which we can't
-                // detect from mmap()'s return value. If we unmap this page,
-                // it will lead to failure growing stack size on platforms like
-                // macOS. Instead, just restore the page to a writable state.
-                // This ain't Linux, so we probably don't need to care about
-                // execstack.
-                let result = mprotect(stackaddr, PAGE_SIZE, PROT_READ | PROT_WRITE);
-
-                if result != 0 {
-                    panic!("unable to reset the guard page");
-                }
-            }
-        }
-    }
-
-    #[cfg(any(target_os = "macos",
-              target_os = "bitrig",
-              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"))]
-    pub unsafe fn current() -> Option<Guard> {
-        let mut ret = None;
-        let mut attr: libc::pthread_attr_t = ::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);
-        #[cfg(not(target_os = "freebsd"))]
-            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);
-            if guardsize == 0 {
-                panic!("there is no guard page");
-            }
-            let mut stackaddr = ::ptr::null_mut();
-            let 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") {
-                // FIXME does freebsd really fault *below* the guard addr?
-                let guardaddr = stackaddr - guardsize;
-                Some(guardaddr - PAGE_SIZE..guardaddr)
-            } else if cfg!(target_os = "netbsd") {
-                Some(stackaddr - guardsize..stackaddr)
-            } else if cfg!(all(target_os = "linux", target_env = "gnu")) {
-                // glibc used to include the guard area within the stack, as noted in the BUGS
-                // section of `man pthread_attr_getguardsize`.  This has been corrected starting
-                // with glibc 2.27, and in some distro backports, so the guard is now placed at the
-                // end (below) the stack.  There's no easy way for us to know which we have at
-                // runtime, so we'll just match any fault in the range right above or below the
-                // stack base to call that fault a stack overflow.
-                Some(stackaddr - guardsize..stackaddr + guardsize)
-            } else {
-                Some(stackaddr..stackaddr + guardsize)
-            };
-        }
-        assert_eq!(libc::pthread_attr_destroy(&mut attr), 0);
-        ret
-    }
-}
-
-// glibc >= 2.15 has a __pthread_get_minstack() function that returns
-// PTHREAD_STACK_MIN plus however many bytes are needed for thread-local
-// storage.  We need that information to avoid blowing up when a small stack
-// is created in an application with big thread-local storage requirements.
-// See #6233 for rationale and details.
-#[cfg(target_os = "linux")]
-#[allow(deprecated)]
-fn min_stack_size(attr: *const libc::pthread_attr_t) -> usize {
-    weak!(fn __pthread_get_minstack(*const libc::pthread_attr_t) -> libc::size_t);
-
-    match __pthread_get_minstack.get() {
-        None => libc::PTHREAD_STACK_MIN,
-        Some(f) => unsafe { f(attr) },
-    }
-}
-
-// No point in looking up __pthread_get_minstack() on non-glibc
-// platforms.
-#[cfg(all(not(target_os = "linux"),
-          not(target_os = "netbsd")))]
-fn min_stack_size(_: *const libc::pthread_attr_t) -> usize {
-    libc::PTHREAD_STACK_MIN
-}
-
-#[cfg(target_os = "netbsd")]
-fn min_stack_size(_: *const libc::pthread_attr_t) -> usize {
-    2048 // just a guess
-}