You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
697 B
36 lines
697 B
// +build !windows
|
|
|
|
package bbolt
|
|
|
|
import "golang.org/x/sys/unix"
|
|
|
|
// mlock locks memory of db file
|
|
func mlock(db *DB, fileSize int) error {
|
|
sizeToLock := fileSize
|
|
if sizeToLock > db.datasz {
|
|
// Can't lock more than mmaped slice
|
|
sizeToLock = db.datasz
|
|
}
|
|
if err := unix.Mlock(db.dataref[:sizeToLock]); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
//munlock unlocks memory of db file
|
|
func munlock(db *DB, fileSize int) error {
|
|
if db.dataref == nil {
|
|
return nil
|
|
}
|
|
|
|
sizeToUnlock := fileSize
|
|
if sizeToUnlock > db.datasz {
|
|
// Can't unlock more than mmaped slice
|
|
sizeToUnlock = db.datasz
|
|
}
|
|
|
|
if err := unix.Munlock(db.dataref[:sizeToUnlock]); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|