github.com/shogo82148/std@v1.22.1-0.20240327122250-4e474527810c/internal/poll/copy_file_range_linux.go (about)

     1  // Copyright 2020 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package poll
     6  
     7  // CopyFileRange copies at most remain bytes of data from src to dst, using
     8  // the copy_file_range system call. dst and src must refer to regular files.
     9  func CopyFileRange(dst, src *FD, remain int64) (written int64, handled bool, err error)