17 lines
409 B
Go
17 lines
409 B
Go
package i3
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import "syscall"
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func pidValid(pid int) bool {
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// As per kill(2) from POSIX.1-2008, sending signal 0 validates a pid.
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if err := syscall.Kill(pid, 0); err != nil {
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if err == syscall.EPERM {
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// Process still alive (but no permission to signal):
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return true
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}
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// errno is likely ESRCH (process not found).
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return false // Process not alive.
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}
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return true // Process still alive.
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}
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