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44 lines
679 B
Go
44 lines
679 B
Go
// +build !windows
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// +build !plan9
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package limit
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import (
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"golang.org/x/sys/unix"
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)
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func Nofile(desired uint64) (uint64, error) {
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var old unix.Rlimit
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err := unix.Getrlimit(unix.RLIMIT_NOFILE, &old)
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if err != nil {
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return 0, err
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}
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if old.Cur >= desired {
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return old.Cur, nil
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}
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if old.Max < desired {
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limit := unix.Rlimit{
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Cur: desired,
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Max: desired,
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}
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err := unix.Setrlimit(unix.RLIMIT_NOFILE, &limit)
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if err == nil {
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return limit.Cur, nil
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}
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desired = old.Max
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}
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limit := unix.Rlimit{
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Cur: desired,
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Max: old.Max,
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}
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err = unix.Setrlimit(unix.RLIMIT_NOFILE, &limit)
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if err != nil {
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return old.Cur, err
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}
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return limit.Cur, nil
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}
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