| // The functions replacing the C macros use the same names as in libc. |
| #![allow(non_snake_case, unsafe_code)] |
| |
| use linux_raw_sys::ctypes::c_int; |
| pub(crate) use linux_raw_sys::general::{ |
| siginfo_t, WCONTINUED, WEXITED, WNOHANG, WNOWAIT, WSTOPPED, WUNTRACED, |
| }; |
| |
| #[inline] |
| pub(crate) fn WIFSTOPPED(status: u32) -> bool { |
| (status & 0xff) == 0x7f |
| } |
| |
| #[inline] |
| pub(crate) fn WSTOPSIG(status: u32) -> u32 { |
| (status >> 8) & 0xff |
| } |
| |
| #[inline] |
| pub(crate) fn WIFCONTINUED(status: u32) -> bool { |
| status == 0xffff |
| } |
| |
| #[inline] |
| pub(crate) fn WIFSIGNALED(status: u32) -> bool { |
| ((status & 0x7f) + 1) as i8 >= 2 |
| } |
| |
| #[inline] |
| pub(crate) fn WTERMSIG(status: u32) -> u32 { |
| status & 0x7f |
| } |
| |
| #[inline] |
| pub(crate) fn WIFEXITED(status: u32) -> bool { |
| (status & 0x7f) == 0 |
| } |
| |
| #[inline] |
| pub(crate) fn WEXITSTATUS(status: u32) -> u32 { |
| (status >> 8) & 0xff |
| } |
| |
| pub(crate) trait SiginfoExt { |
| fn si_code(&self) -> c_int; |
| unsafe fn si_status(&self) -> c_int; |
| } |
| |
| impl SiginfoExt for siginfo_t { |
| #[inline] |
| fn si_code(&self) -> c_int { |
| // SAFETY: This is technically a union access, but it's only a union |
| // with padding. |
| unsafe { self.__bindgen_anon_1.__bindgen_anon_1.si_code } |
| } |
| |
| /// Return the exit status or signal number recorded in a `siginfo_t`. |
| /// |
| /// # Safety |
| /// |
| /// `si_signo` must equal `SIGCHLD` (as it is guaranteed to do after a |
| /// `waitid` call). |
| #[inline] |
| #[rustfmt::skip] |
| unsafe fn si_status(&self) -> c_int { |
| self.__bindgen_anon_1.__bindgen_anon_1._sifields._sigchld._status |
| } |
| } |