istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pilot/cmd/pilot-agent/app/fds_unix.go (about)

     1  //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
     2  // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
     3  
     4  // Copyright Istio 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  package app
    19  
    20  import "golang.org/x/sys/unix"
    21  
    22  func raiseFileLimits() (uint64, error) {
    23  	rlimit := unix.Rlimit{}
    24  	if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlimit); err != nil {
    25  		return 0, err
    26  	}
    27  	rlimit.Cur = rlimit.Max
    28  	if err := unix.Setrlimit(unix.RLIMIT_NOFILE, &rlimit); err != nil {
    29  		return 0, err
    30  	}
    31  
    32  	return rlimit.Cur, nil
    33  }