pub struct MigrationLock { /* private fields */ }Expand description
Exclusive possession of a migration workspace.
The persistent OS guard is held before the canonical record is inspected and remains held until explicit release or drop. A canonical record is deliberately retained after drop or panic as fail-closed evidence.
Implementations§
Source§impl MigrationLock
impl MigrationLock
Sourcepub fn acquire(workspace: &Path, holder: &str) -> Result<Self, String>
pub fn acquire(workspace: &Path, holder: &str) -> Result<Self, String>
Take the lock in workspace on behalf of holder.
§Errors
The OS guard is held, a canonical record remains, or the workspace is unwritable. Neither an active nor a dead lock is stolen automatically.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for MigrationLock
impl RefUnwindSafe for MigrationLock
impl Send for MigrationLock
impl Sync for MigrationLock
impl Unpin for MigrationLock
impl UnsafeUnpin for MigrationLock
impl UnwindSafe for MigrationLock
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