ceremonyclient/pebble/vfs/fadvise_linux.go
Cassandra Heart 2e2a1e4789
v1.2.0 (#31)
2024-01-03 01:31:42 -06:00

21 lines
610 B
Go

// Copyright 2019 The LevelDB-Go and Pebble Authors. All rights reserved. Use
// of this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//go:build linux
// +build linux
package vfs
import "golang.org/x/sys/unix"
// Calls Fadvise with FADV_RANDOM to disable readahead on a file descriptor.
func fadviseRandom(f uintptr) error {
return unix.Fadvise(int(f), 0, 0, unix.FADV_RANDOM)
}
// Calls Fadvise with FADV_SEQUENTIAL to enable readahead on a file descriptor.
func fadviseSequential(f uintptr) error {
return unix.Fadvise(int(f), 0, 0, unix.FADV_SEQUENTIAL)
}