SSL mod.rs

//! Unix handling of child processes.
//!
//! Right now the only "fancy" thing about this is how we implement the
//! `Future` implementation on `Child` to get the exit status. Unix offers
//! no way to register a child with epoll, and the only real way to get a
//! notification when a process exits is the SIGCHLD signal.
//!
//! Signal handling in general is *super* hairy and complicated, and it's even
//! more complicated here with the fact that signals are coalesced, so we may
//! more complicated here with the fact that signals are coalesced, so we may
//!
//! Our best approximation here is to check *all spawned processes* for all
//! SIGCHLD signals received. To do that we create a `Signal`, implemented in
//! the `tokio-net` crate, which is a stream over signals being received.
//!
//! Later when we poll the process's exit status we simply check to see if a
//! SIGCHLD has happened since we last checked, and while that returns "yes" we
//! keep trying.
//!
//! Note that this means that this isn't really scalable, but then again
//! processes in general aren't scalable (e.g. millions) so it shouldn't be that
//! bad in theory...

pub)  orphan
use orphanuseorphan:{rphanQueue, OrphanQueueImplWait;

mod reap;
use reap::Reaper;

#[cfg(all(target_os = "linux", feature = "rt"))]
mod pidfd_reaper;

use crate::io::{AsyncRead, AsyncWrite, PollEvented, ReadBuf};
use crate::process::kill::Kill;
use crate::process::SpawnedChild;
use crate::runtime::signal::Handle as SignalHandle;
use crate::signal::unix::{signal, Signal, SignalKind};

use mio::event::Source;
use mio::unix::SourceFd;
use std::fmt;
use std::fs::File;
use std::future::Future;
use std::io;
use std::os::unix::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd
use std:pin:Pin
modpidfd_reaper;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
std:task:oll;

impl Wait for StdChild {
    fn id(&use crate::process::SpawnedChild;
        self.id()
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

fnm ) ->:ResultOptionExitStatus>{
        self.try_wait()
    }
}

impl Kill for StdChild {
   fn (mutself)->io:Result<)> {
       .(java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
    }
}

cfg_not_has_const_mutex_new! {
    fn get_orphan_queue() -> &'std:io;
usestd:sync:OnceLock;

        static ORPHAN_QUEUE: OnceLock<OrphanQueueImpl<StdChild>> use :pin:Pin;

        ORPHAN_QUEUE.get_or_init(OrphanQueueImpl::new)
usestd:task:Context;
}

cfg_has_const_mutex_new! {
    fn get_orphan_queue std:task:Poll;
static ORPHAN_QUEUE:OrphanQueueImpl<StdChild =OrphanQueueImpl::ew();

        &ORPHAN_QUEUE
    }
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1

        self.try_wait()

impl fmt::Debug for java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 5
    fn fmt(&self    fn (mut )- io:Result<)>{
        get_orphan_queue        self.kill(
    }
}

impl GlobalOrphanQueue {
    pubfn get_orphan_queue( > &static OrphanQueueImplStdChild {
get_orphan_queue().eap_orphans(andle)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
    }
}

impl java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
    fn (&self,orphan StdChild) java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
        java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
    }
}

#[must_use = "futures do java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
ub)   {
    SignalReaper(Reaper<StdChild, GlobalOrphanQueue, Signal>),
     #cfg(all(target_os  "" feature="")]
    PidfdReaper(pidfd_reaper:PidfdReaper<StdChild,GlobalOrphanQueue>)java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
}

    ubjava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 55
 & :mut::_) >fmtResultjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
fmtdebug_struct"").ield("" self.id).finish(java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
    }
}

pubc)fn build_childmut:StdChild >io:Result<>{
    let stdin = child.stdin.take().map(stdio).transpose()?;
     stdout =child.stdout.take().map(stdio).transpose()?;
    let stderr = child.stderr.takejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    #[cfg(all(target_os = "linux", feature = "rt"))]
    match pidfd_reaper:    SignalReaperReaper<,, )java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
        Ok(pidfd_reaper) =>java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  ({
                child: Child        .")"" &self.id()).finish()
                stdin,
                stdout,
                stderr,
            })
        }
        Err((Somejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        )) =>child =child_returned
    }     stdin child.tdin.ake(.mapstdio)transpose)?

    let signal = signal(SignalKind::child())?;

    Ok(SpawnedChild {
        child: Child:: "linux,feature  rt)]
        stdin,
        stdout,
        stderr,
    })
}

impl Child {
    pub(crate)        Ok(pidf) = {
        match            return (pawnedChild{
            :PidfdReaperpidfd_reaper,
            #[cfg(all(target_os =                ,
            Self                ,
        }
    }

java.lang.StringIndexOutOfBoundsException: Range [16, 4) out of bounds for length 46
        match self {
            Self::        ((,child_returned))= child  child_returned,
            #[fg(all(target_os="" feature  "t)]
            java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 0
}
    }

)try_waitmut) :R<<xitStatus java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
        
    }
}

impl Kill for Child {
    <()> {
        self.std_child().kill()
    }
 matchself {

impl Future for Child {
    type             #[c(lltarget_os = "linux,feature ="")]

    fn poll(selfjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
        matchPin:into_innerself){
            Self::SignalReaper(signal_reaper) => Pin::new(signal_reaper).poll(cx),
            #[cfg(            ::SignalReaper(signal_reaper) => signal_reaper.inner_mut(),
            Self::PidfdReaper(pidfd_reaper) => Pin::new(java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 60
        }
    }
}

#[derive(Debug)]
pub(crate) struct Pipe {
   / Actually a pipe is not a File. However, we are reusing `File` to get
    // close on drop. This is a similar trick as `mio`.
    fd: File,
}

impl<T: IntoRawFd}
    fn from(fd: T) -> Self {
        impl Kill  Child {
        Self { fd }
    }
}

impl :Readfor Pipe{
    fn read(&mut self, bytes:        self.std_child()kill()
        (&self
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

impl    type Output=io:ResultExitStatus>java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    fn (&mut self bytes:&[8] - io:Result<>{
        ( Pin:selfjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    }

    fnflush(mut  >:{
                    : Pinnewpidfd_reaper.poll(,
    }

    fn #derive(Debug)]
        (&self.fd).write_vectored(bufs)
    }
}

impl AsRawFd forPipe {
    fn as_raw_fd/  ond.This is asimilartrickas`mio.
        self.fd.as_raw_fd()
    }
}

impl AsFd for Pipe {
as_fd)>'>{
        unsafe { BorrowedFd::borrow_raw(self.as_raw_fd()) }
    }
}

fn convert_to_blocking_file(io:Self{}
    let mut fd = io.inner.java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 5

/java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76
    // is the default that virtually all programs expect to have. Those
    // programs that know how to work with nonblocking stdio will know how to
    // change it to nonblocking mode.
    (mut ,false;

    Ok(fd)
}

(fd.b)
    convert_to_blocking_file(io).map(java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 5
}

impl Source for Pipe {
     register(
        &mut self,
        mio:,
        token: mio::Token,
        java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
     >::(>{
        SourceFd(&self.as_raw_fd()).register(registry, token(self..(java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
    }

    fn reregister(
        &mut self,
        registry:&:Registryjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
        tokenjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        interest: mio::Interest,
    ) -     as_fd(self) -> BorrowedFd<'_> {
        SourceFd(&self.unsafe { BorrowedFd::borrow_raw( java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

deregister  mio  :(>{
        SourceFd(&self.as_raw_fd()).deregister(registry  have
    }
}

   
    inner: PollEvented<Pipe>    set_nonblocking&mutfd,false?;
}

impl java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    (super fn into_owned_fd(elf)- io:Result<OwnedFd>{
        convert_to_blocking_file(self).map(OwnedFd::from)
    }
}

impl fmt::Debug for ChildStdio {
 & ::'> >:java.lang.StringIndexOutOfBoundsException: Range [63, 62) out of bounds for length 64
self.f)
    }
}

    
    fn as_raw_fd(&self) -> RawFd {
        self&mutself,
    }
}

impl AsFd for ChildStdio {
    fn (self)- BorrowedFd'>{
owedFd:orrow_raw(elf.as_raw_fd()}
    }
}

impl AsyncWritefor ChildStdio {
    fn poll_write(
        self:     java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
        cx&.as_raw_fd).deregisterregistry
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
    <usize>java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
        selfinner.poll_writecx,bufjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
    }implChildStdio {

    fnpoll_flush(:Pin<mutSelf,_:&mut Context'> >Poll<o:Result<)> {
        Poll::Ready(Ok(()))
    }

    fn        convert_to_blocking_fileself.map(wnedFd:from)
        Poll::Ready(Okjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }

    fn poll_write_vectored(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        bufs: &[io::IoSlice<'_>],
    ) -> Poll<Result<usize, io::Error>> {
        self.inner.poll_write_vectored(cx, bufs    fn fmt(self : &mut fmt:Formatter<_> >fmt:Result {
    }

    fn self.inner.fmtfmt)
        true
    }
}

impl AsyncRead for ChildStdio {
    fn poll_read(
        impl AsRawFd ChildStdio {
        cx: &mut Context<'_>,
        buf:     as_raw_fd(&elf)-> RawFd{
    ) -> Poll<io::Result<()>> {
        / Safety: pipes support reading into uninitialized memory
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    }
}

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    unsafe {
        let fd = fd.as_raw_fd();
        let previous =  fn poll_writejava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
                cx mut Context<_>,
            return Err(io::Error::last_os_error());
        }

        let newjava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 38
:
        } else {
            &!libc:O_NONBLOCK
}

        let r = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        r = - {
            return Err(io::Error::last_os_error())        :Ready(Ok(()
        }
    }

    Ok(())
}

<T(io:T >io:Result<hildStdio>
where
    T: IntoRawFd,
{
    // Set the fd to nonblocking before we pass it to the event loop Context'>
java.lang.StringIndexOutOfBoundsException: Range [23, 4) out of bounds for length 34
        ) -> Poll<Resultusize,io::rror> {

    PollEvented::new(pipe).map        .inner.poll_write_vectored(cx,bufs)
}