extern/nushell
1
0
Fork 1
mirror of https://github.com/nushell/nushell.git synced 2025-08-17 06:41:18 +02:00
Code Issues Packages Projects Releases Wiki Activity

add comment

Browse Source
This commit is contained in:
WindSoilder
2022-08-01 19:04:56 +08:00
parent fbdb6e8ea0
commit a9f31dd95c
2 changed files with 10 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
crates/nu-system/src/foreground.rs
View File

@ -5,7 +5,7 @@
#[cfg(target_family = "unix")]
pub mod external_process_setup {
use std::os::unix::prelude::CommandExt;
pub fn setup_fg_external(external_command: &mut std::process::Command) {
pub fn prepare_to_foreground(external_command: &mut std::process::Command) {
unsafe {
libc::signal(libc::SIGTTOU, libc::SIG_IGN);
libc::signal(libc::SIGTTIN, libc::SIG_IGN);
@ -14,18 +14,24 @@ pub mod external_process_setup {
// make the command startup with new process group.
// The process group id must be the same as external commands' pid.
// Or else we'll failed to set it as foreground process.
// For more information, refer to `fork_child_for_process` function:
// https://github.com/fish-shell/fish-shell/blob/023042098396aa450d2c4ea1eb9341312de23126/src/exec.cpp#L398
libc::setpgid(0, 0);
Ok(())
});
}
}
/// Before call this function, `prepare_to_foreground` function must be called. Or else
/// it'll failed with silence.
pub fn set_foreground(process: &std::process::Child) {
unsafe {
libc::tcsetpgrp(libc::STDIN_FILENO, process.id() as i32);
}
}
/// It can only be called when you have called `set_foreground`, or else
/// Something strange will happened.
pub fn reset_foreground_id() {
unsafe {
libc::tcsetpgrp(libc::STDIN_FILENO, libc::getpgrp());
@ -35,6 +41,7 @@ pub mod external_process_setup {
}
}
// TODO: investigate if we can set foreground process through windows system call.
#[cfg(target_family = "windows")]
mod external_process_setup {