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https://github.com/kaspanet/kaspad.git
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513ffa7e0c
* [NOD-1420] Moved setting limits to executor * [NOD-1420] Moved all code dealing with windows service to separate package * [NOD-1420] Move practically all main to restructured app package * [NOD-1420] Check for running as interactive only after checking if we are doing any service operation * [NOD-1420] Add comments * [NOD-1420] Add a comment
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
// Copyright (c) 2013-2014 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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// +build !windows,!plan9
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package limits
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import (
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"syscall"
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"github.com/pkg/errors"
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)
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const ()
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// SetLimits raises some process limits to values which allow kaspad and
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// associated utilities to run.
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func SetLimits(desiredLimits *DesiredLimits) error {
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var rLimit syscall.Rlimit
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err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
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if err != nil {
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return err
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}
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if rLimit.Cur > desiredLimits.FileLimitWant {
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return nil
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}
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if rLimit.Max < desiredLimits.FileLimitMin {
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err = errors.Errorf("need at least %d file descriptors",
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desiredLimits.FileLimitMin)
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return err
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}
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if rLimit.Max < desiredLimits.FileLimitWant {
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rLimit.Cur = rLimit.Max
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} else {
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rLimit.Cur = desiredLimits.FileLimitWant
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}
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err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
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if err != nil {
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// try min value
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rLimit.Cur = desiredLimits.FileLimitMin
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err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
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if err != nil {
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return err
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}
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}
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return nil
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}
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