ca65902a8f
* Moves all CTAP logic into its own library * workflows fix test * more coveralls workflow tests
40 lines
1.7 KiB
Rust
40 lines
1.7 KiB
Rust
// Copyright 2022-2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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pub trait Clock {
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/// Stores data for the clock to recognize if this timer is elapsed or not.
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///
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/// The Clock does not keep track of the timers it creates. Therefore, they should not wrap
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/// unexpectedly. A timer that is elapsed may never return to a non-elapsed state.
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///
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/// A default Timer should return `true` when checked with `is_elapsed`.
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type Timer: Default;
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/// Creates a new timer that expires after the given time in ms.
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fn make_timer(&mut self, milliseconds: usize) -> Self::Timer;
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/// Checks whether a given timer is expired.
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///
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/// Until a timer expires, this function consistently returns false. Once it expires, this
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/// function consistently returns true. In particular, it is valid to continue calling this
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/// function after the first time it returns true.
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fn is_elapsed(&mut self, timer: &Self::Timer) -> bool;
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/// Timestamp in microseconds.
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///
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/// Normal operation only needs relative time, absolute timestamps are useful for debugging.
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#[cfg(feature = "debug_ctap")]
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fn timestamp_us(&mut self) -> usize;
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}
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