uqa-engine 0.1.9

Engine: schema-aware table store, catalog restore, transactions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

//
// Unified Query Algebra
//
// Copyright (c) 2023-2026 Cognica, Inc.
//

use super::Engine;

impl Engine {
    pub fn cancel(&self) {
        self.runtime.cancellation.cancel();
    }

    /// Reset the cancellation flag so subsequent queries run
    /// normally. Call between query batches when reusing the same
    /// engine for many cancellable executions.
    pub fn reset_cancellation(&self) {
        self.runtime.cancellation.reset();
    }

    pub fn cancellation_token(&self) -> uqa_core::CancellationToken {
        self.runtime.cancellation.clone()
    }

    /// compatibility alias for [`Engine::cancellation_token`].
    pub fn cancel_token(&self) -> uqa_core::CancellationToken {
        self.cancellation_token()
    }

    pub fn is_cancelled(&self) -> bool {
        self.runtime.cancellation.is_cancelled()
    }
}