Enum OperationGuardStrategy 

#[repr(i32)]
pub enum OperationGuardStrategy {
    Fine = 0,
    Coarse = 1,
}

User mode file system locking strategy.

Variants

Fine = 0

A fine-grained concurrency model where file system NAMESPACE accesses are guarded using an exclusive-shared (read-write) lock.

File I/O is not guarded and concurrent reads/writes/etc. are possible. (Note that the FSD will still apply an exclusive-shared lock PER INDIVIDUAL FILE, but it will not limit I/O operations for different files.)

The fine-grained concurrency model applies the exclusive-shared lock as follows:

• EXCL: SetVolumeLabel, Flush(Volume), Create, Cleanup(Delete), SetInformation(Rename)
• SHRD: GetVolumeInfo, Open, SetInformation(Disposition), ReadDirectory
• NONE: all other operations

Coarse = 1

A coarse-grained concurrency model where all file system accesses are guarded by a mutually exclusive lock.

Trait Implementations

impl Clone for OperationGuardStrategy

fn clone(&self) -> OperationGuardStrategy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OperationGuardStrategy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for OperationGuardStrategy

fn default() -> OperationGuardStrategy

Returns the “default value” for a type.

impl Copy for OperationGuardStrategy