45 lines
835 B
Go
45 lines
835 B
Go
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package i3
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import (
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"sync"
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"github.com/BurntSushi/xgbutil"
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"github.com/BurntSushi/xgbutil/xprop"
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)
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func i3Pid() int {
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xu, err := xgbutil.NewConn()
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if err != nil {
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return -1 // X session terminated
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}
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defer xu.Conn().Close()
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reply, err := xprop.GetProperty(xu, xu.RootWin(), "I3_PID")
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if err != nil {
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return -1 // I3_PID no longer present (X session replaced?)
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}
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num, err := xprop.PropValNum(reply, err)
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if err != nil {
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return -1
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}
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return int(num)
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}
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var lastPid struct {
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sync.Mutex
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pid int
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}
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// IsRunningHook provides a method to override the method which detects if i3 is running or not
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var IsRunningHook = func() bool {
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lastPid.Lock()
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defer lastPid.Unlock()
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if !wasRestart || lastPid.pid == 0 {
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lastPid.pid = i3Pid()
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}
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return pidValid(lastPid.pid)
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}
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func i3Running() bool {
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return IsRunningHook()
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}
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