9 use crate::backend::process::wait::SiginfoExt;
12     /// Options for modifying the behavior of [`wait`]/[`waitpid`].
17         const NOHANG = bitcast!(backend::process::wait::WNOHANG);
21         const UNTRACED = bitcast!(backend::process::wait::WUNTRACED);
24         const CONTINUED = bitcast!(backend::process::wait::WCONTINUED);
38         const NOHANG = bitcast!(backend::process::wait::WNOHANG);
41         const CONTINUED = bitcast!(backend::process::wait::WCONTINUED);
42         /// Wait for processed that have exited.
43         const EXITED = bitcast!(backend::process::wait::WEXITED);
45         const NOWAIT = bitcast!(backend::process::wait::WNOWAIT);
46         /// Wait for processes that have been stopped.
47         const STOPPED = bitcast!(backend::process::wait::WSTOPPED);
54 /// The status of a child process after calling [`wait`]/[`waitpid`].
75         backend::process::wait::WIFSTOPPED(self.0 as _)  in stopped()
81         backend::process::wait::WIFEXITED(self.0 as _)  in exited()
87         backend::process::wait::WIFSIGNALED(self.0 as _)  in signaled()
93         backend::process::wait::WIFCONTINUED(self.0 as _)  in continued()
101             Some(backend::process::wait::WSTOPSIG(self.0 as _) as _)  in stopping_signal()
112             Some(backend::process::wait::WEXITSTATUS(self.0 as _) as _)  in exit_status()
123             Some(backend::process::wait::WTERMSIG(self.0 as _) as _)  in terminating_signal()
251 /// The identifier to wait on in a call to [`waitid`].
256     /// Wait on all processes.
260     /// Wait for a specific process ID.
264     /// Wait for a specific process group ID, or the calling process' group ID.
268     /// Wait for a specific process file descriptor.
279 /// `waitpid(pid, waitopts)`—Wait for a specific process to change state.
281 /// If the pid is `None`, the call will wait for any child process whose
284 /// Otherwise, the call will wait for the child process with the given pid.
298 /// `-1` case of `waitpid`); to do that, currently the [`wait`] function must
305 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/wait.html
313 /// `waitpid(-pgid, waitopts)`—Wait for a process in a specific process group
316 /// The call will wait for any child process with the given pgid.
327 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/wait.html
335 /// `wait(waitopts)`—Wait for any of the children of calling process to
348 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/wait.html
352 pub fn wait(waitopts: WaitOptions) -> io::Result<Option<(Pid, WaitStatus)>> {  in wait()  function
353     backend::process::syscalls::wait(waitopts)  in wait()
356 /// `waitid(_, _, _, opts)`—Wait for the specified child process to change