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ba5407615d
The doc formatting changes introduced in the recent go version is increasing the diff for all of the new commits. Formatting it all in this commit will help the readability of future PRs by reducing the diff.
54 lines
1.0 KiB
Go
54 lines
1.0 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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//go:build !windows && !plan9
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// +build !windows,!plan9
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package limits
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import (
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"fmt"
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"syscall"
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)
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const (
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fileLimitWant = 2048
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fileLimitMin = 1024
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)
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// SetLimits raises some process limits to values which allow btcd and
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// associated utilities to run.
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func SetLimits() 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 > fileLimitWant {
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return nil
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}
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if rLimit.Max < fileLimitMin {
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err = fmt.Errorf("need at least %v file descriptors",
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fileLimitMin)
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return err
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}
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if rLimit.Max < fileLimitWant {
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rLimit.Cur = rLimit.Max
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} else {
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rLimit.Cur = 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 = 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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