github.com/lalkh/containerd@v1.4.3/cmd/containerd-stress/rlimit_unix.go (about)

     1  // +build !windows,!freebsd
     2  
     3  /*
     4     Copyright The containerd Authors.
     5  
     6     Licensed under the Apache License, Version 2.0 (the "License");
     7     you may not use this file except in compliance with the License.
     8     You may obtain a copy of the License at
     9  
    10         http://www.apache.org/licenses/LICENSE-2.0
    11  
    12     Unless required by applicable law or agreed to in writing, software
    13     distributed under the License is distributed on an "AS IS" BASIS,
    14     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    15     See the License for the specific language governing permissions and
    16     limitations under the License.
    17  */
    18  
    19  package main
    20  
    21  import (
    22  	"syscall"
    23  )
    24  
    25  func setRlimit() error {
    26  	rlimit := uint64(100000)
    27  	if rlimit > 0 {
    28  		var limit syscall.Rlimit
    29  		if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
    30  			return err
    31  		}
    32  		if limit.Cur < rlimit {
    33  			limit.Cur = rlimit
    34  			if limit.Max < limit.Cur {
    35  				limit.Max = limit.Cur
    36  			}
    37  			if err := syscall.Setrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
    38  				return err
    39  			}
    40  		}
    41  	}
    42  	return nil
    43  }