storj.io/minio@v0.0.0-20230509071714-0cbc90f649b1/pkg/sys/rlimit-file_bsd.go (about)

     1  //go:build freebsd || dragonfly
     2  // +build freebsd dragonfly
     3  
     4  /*
     5   * MinIO Cloud Storage, (C) 2017 MinIO, Inc.
     6   *
     7   * Licensed under the Apache License, Version 2.0 (the "License");
     8   * you may not use this file except in compliance with the License.
     9   * You may obtain a copy of the License at
    10   *
    11   *     http://www.apache.org/licenses/LICENSE-2.0
    12   *
    13   * Unless required by applicable law or agreed to in writing, software
    14   * distributed under the License is distributed on an "AS IS" BASIS,
    15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16   * See the License for the specific language governing permissions and
    17   * limitations under the License.
    18   */
    19  
    20  package sys
    21  
    22  import (
    23  	"syscall"
    24  )
    25  
    26  // GetMaxOpenFileLimit - returns maximum file descriptor number that can be opened by this process.
    27  func GetMaxOpenFileLimit() (curLimit, maxLimit uint64, err error) {
    28  	var rlimit syscall.Rlimit
    29  	if err = syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlimit); err == nil {
    30  		curLimit = uint64(rlimit.Cur)
    31  		maxLimit = uint64(rlimit.Max)
    32  	}
    33  
    34  	return curLimit, maxLimit, err
    35  }
    36  
    37  // SetMaxOpenFileLimit - sets maximum file descriptor number that can be opened by this process.
    38  func SetMaxOpenFileLimit(curLimit, maxLimit uint64) error {
    39  	rlimit := syscall.Rlimit{Cur: int64(curLimit), Max: int64(curLimit)}
    40  	return syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlimit)
    41  }