mirror of https://github.com/Hilbis/Hilbish
feat: implement job foregrounding/backgrounding (#155)
sammyette
9 months ago
committed by
GitHub
parent
d65b574cb2
commit
8697344f98
@ -0,0 +1,38 @@
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// +build darwin linux
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package main
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import (
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"errors"
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"os"
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"syscall"
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"golang.org/x/sys/unix"
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)
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func (j *job) foreground() error {
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if jobs.foreground {
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return errors.New("(another) job already foregrounded")
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}
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pgid, _ := syscall.Getpgid(j.pid)
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// tcsetpgrp
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unix.IoctlSetPointerInt(0, unix.TIOCSPGRP, pgid)
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proc, _ := os.FindProcess(j.pid)
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proc.Wait()
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hshPgid, _ := syscall.Getpgid(os.Getpid())
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unix.IoctlSetPointerInt(0, unix.TIOCSPGRP, hshPgid)
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return nil
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}
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func (j *job) background() error {
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proc := j.handle.Process
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if proc == nil {
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return nil
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}
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proc.Signal(syscall.SIGCONT)
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return nil
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}
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@ -0,0 +1,15 @@
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// +build windows
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package main
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import (
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"errors"
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)
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func (j *job) foreground() error {
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return errors.New("not supported on windows")
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}
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func (j *job) background() error {
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return errors.New("not supported on windows")
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}
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@ -0,0 +1,15 @@
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local commander = require 'commander'
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commander.register('bg', function()
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local job = hilbish.jobs.last()
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if not job then
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print 'bg: no last job'
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return 1
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end
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local err = job.background()
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if err then
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print('bg: ' .. err)
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return 2
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end
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end)
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@ -0,0 +1,15 @@
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local commander = require 'commander'
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commander.register('fg', function()
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local job = hilbish.jobs.last()
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if not job then
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print 'fg: no last job'
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return 1
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end
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local err = job.foreground() -- waits for job; blocks
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if err then
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print('fg: ' .. err)
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return 2
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end
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end)
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