2021-02-06 04:11:25 +01:00
|
|
|
package bbolt
|
2020-12-30 07:08:20 +01:00
|
|
|
|
|
|
|
|
import (
|
|
|
|
|
"syscall"
|
|
|
|
|
"unsafe"
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
const (
|
|
|
|
|
msAsync = 1 << iota // perform asynchronous writes
|
|
|
|
|
msSync // perform synchronous writes
|
|
|
|
|
msInvalidate // invalidate cached data
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
func msync(db *DB) error {
|
|
|
|
|
_, _, errno := syscall.Syscall(syscall.SYS_MSYNC, uintptr(unsafe.Pointer(db.data)), uintptr(db.datasz), msInvalidate)
|
|
|
|
|
if errno != 0 {
|
|
|
|
|
return errno
|
|
|
|
|
}
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func fdatasync(db *DB) error {
|
|
|
|
|
if db.data != nil {
|
|
|
|
|
return msync(db)
|
|
|
|
|
}
|
|
|
|
|
return db.file.Sync()
|
|
|
|
|
}
|
