Auto merge of #43551 - Mark-Simulacrum:rollup, r=Mark-Simulacrum

Rollup of 8 pull requests

- Successful merges: #43409, #43501, #43509, #43512, #43513, #43536, #43544, #43549
- Failed merges:

5 files changed, 62 insertions, 10 deletions

diff --git a/src/libstd/sys/redox/ext/mod.rs b/src/libstd/sys/redox/ext/mod.rs
index 513ef272e97..0c1bf9e9557 100644
--- a/src/libstd/sys/redox/ext/mod.rs
+++ b/src/libstd/sys/redox/ext/mod.rs
@@ -33,6 +33,7 @@ pub mod ffi;
 pub mod fs;
 pub mod io;
 pub mod process;
+pub mod thread;
 
 /// A prelude for conveniently writing platform-specific code.
 ///
@@ -46,5 +47,7 @@ pub mod prelude {
     #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::fs::{FileTypeExt, PermissionsExt, OpenOptionsExt, MetadataExt};
     #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
+    pub use super::thread::JoinHandleExt;
+    #[doc(no_inline)] #[stable(feature = "rust1", since = "1.0.0")]
     pub use super::process::{CommandExt, ExitStatusExt};
 }
diff --git a/src/libstd/sys/redox/ext/thread.rs b/src/libstd/sys/redox/ext/thread.rs
new file mode 100644
index 00000000000..52be2ccd9f9
--- /dev/null
+++ b/src/libstd/sys/redox/ext/thread.rs
@@ -0,0 +1,47 @@
+// Copyright 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.
+
+//! Unix-specific extensions to primitives in the `std::thread` module.
+
+#![stable(feature = "thread_extensions", since = "1.9.0")]
+
+use sys_common::{AsInner, IntoInner};
+use thread::JoinHandle;
+
+#[stable(feature = "thread_extensions", since = "1.9.0")]
+#[allow(deprecated)]
+pub type RawPthread = usize;
+
+/// Unix-specific extensions to `std::thread::JoinHandle`
+#[stable(feature = "thread_extensions", since = "1.9.0")]
+pub trait JoinHandleExt {
+    /// Extracts the raw pthread_t without taking ownership
+    #[stable(feature = "thread_extensions", since = "1.9.0")]
+    fn as_pthread_t(&self) -> RawPthread;
+
+    /// Consumes the thread, returning the raw pthread_t
+    ///
+    /// This function **transfers ownership** of the underlying pthread_t to
+    /// the caller. Callers are then the unique owners of the pthread_t and
+    /// must either detach or join the pthread_t once it's no longer needed.
+    #[stable(feature = "thread_extensions", since = "1.9.0")]
+    fn into_pthread_t(self) -> RawPthread;
+}
+
+#[stable(feature = "thread_extensions", since = "1.9.0")]
+impl<T> JoinHandleExt for JoinHandle<T> {
+    fn as_pthread_t(&self) -> RawPthread {
+        self.as_inner().id() as RawPthread
+    }
+
+    fn into_pthread_t(self) -> RawPthread {
+        self.into_inner().into_id() as RawPthread
+    }
+}
diff --git a/src/libstd/sys/redox/fd.rs b/src/libstd/sys/redox/fd.rs
index 1b37aafef56..ba7bbdc657f 100644
--- a/src/libstd/sys/redox/fd.rs
+++ b/src/libstd/sys/redox/fd.rs
@@ -57,9 +57,9 @@ impl FileDesc {
     }
 
     pub fn set_cloexec(&self) -> io::Result<()> {
-        let mut flags = cvt(syscall::fcntl(self.fd, syscall::F_GETFL, 0))?;
+        let mut flags = cvt(syscall::fcntl(self.fd, syscall::F_GETFD, 0))?;
         flags |= syscall::O_CLOEXEC;
-        cvt(syscall::fcntl(self.fd, syscall::F_SETFL, flags)).and(Ok(()))
+        cvt(syscall::fcntl(self.fd, syscall::F_SETFD, flags)).and(Ok(()))
     }
 
     pub fn set_nonblocking(&self, nonblocking: bool) -> io::Result<()> {
diff --git a/src/libstd/sys/redox/process.rs b/src/libstd/sys/redox/process.rs
index ff1626d9b31..17fa07b99ae 100644
--- a/src/libstd/sys/redox/process.rs
+++ b/src/libstd/sys/redox/process.rs
@@ -272,21 +272,21 @@ impl Command {
 
         if let Some(fd) = stdio.stderr.fd() {
             t!(cvt(syscall::dup2(fd, 2, &[])));
-            let mut flags = t!(cvt(syscall::fcntl(2, syscall::F_GETFL, 0)));
+            let mut flags = t!(cvt(syscall::fcntl(2, syscall::F_GETFD, 0)));
             flags &= ! syscall::O_CLOEXEC;
-            t!(cvt(syscall::fcntl(2, syscall::F_SETFL, flags)));
+            t!(cvt(syscall::fcntl(2, syscall::F_SETFD, flags)));
         }
         if let Some(fd) = stdio.stdout.fd() {
             t!(cvt(syscall::dup2(fd, 1, &[])));
-            let mut flags = t!(cvt(syscall::fcntl(1, syscall::F_GETFL, 0)));
+            let mut flags = t!(cvt(syscall::fcntl(1, syscall::F_GETFD, 0)));
             flags &= ! syscall::O_CLOEXEC;
-            t!(cvt(syscall::fcntl(1, syscall::F_SETFL, flags)));
+            t!(cvt(syscall::fcntl(1, syscall::F_SETFD, flags)));
         }
         if let Some(fd) = stdio.stdin.fd() {
             t!(cvt(syscall::dup2(fd, 0, &[])));
-            let mut flags = t!(cvt(syscall::fcntl(0, syscall::F_GETFL, 0)));
+            let mut flags = t!(cvt(syscall::fcntl(0, syscall::F_GETFD, 0)));
             flags &= ! syscall::O_CLOEXEC;
-            t!(cvt(syscall::fcntl(0, syscall::F_SETFL, flags)));
+            t!(cvt(syscall::fcntl(0, syscall::F_SETFD, flags)));
         }
 
         if let Some(g) = self.gid {
diff --git a/src/libstd/sys/redox/syscall/flag.rs b/src/libstd/sys/redox/syscall/flag.rs
index 65ad9842d69..892007df2b7 100644
--- a/src/libstd/sys/redox/syscall/flag.rs
+++ b/src/libstd/sys/redox/syscall/flag.rs
@@ -20,8 +20,10 @@ pub const EVENT_NONE: usize = 0;
 pub const EVENT_READ: usize = 1;
 pub const EVENT_WRITE: usize = 2;
 
-pub const F_GETFL: usize = 1;
-pub const F_SETFL: usize = 2;
+pub const F_GETFD: usize = 1;
+pub const F_SETFD: usize = 2;
+pub const F_GETFL: usize = 3;
+pub const F_SETFL: usize = 4;
 
 pub const FUTEX_WAIT: usize = 0;
 pub const FUTEX_WAKE: usize = 1;