/usr/share/gocode/src/github.com/jtolds/gls/id_pool.go is in golang-github-jtolds-gls-dev 4.2.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | package gls
// though this could probably be better at keeping ids smaller, the goal of
// this class is to keep a registry of the smallest unique integer ids
// per-process possible
import (
"sync"
)
type idPool struct {
mtx sync.Mutex
released []uint
max_id uint
}
func (p *idPool) Acquire() (id uint) {
p.mtx.Lock()
defer p.mtx.Unlock()
if len(p.released) > 0 {
id = p.released[len(p.released)-1]
p.released = p.released[:len(p.released)-1]
return id
}
id = p.max_id
p.max_id++
return id
}
func (p *idPool) Release(id uint) {
p.mtx.Lock()
defer p.mtx.Unlock()
p.released = append(p.released, id)
}
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