1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
---|---|
2 | // Use of this source code is governed by a BSD-style license that can be |
3 | // found in the LICENSE file. |
4 | |
5 | #include "flutter/fml/synchronization/count_down_latch.h" |
6 | |
7 | #include "flutter/fml/logging.h" |
8 | |
9 | namespace fml { |
10 | |
11 | CountDownLatch::CountDownLatch(size_t count) : count_(count) { |
12 | if (count_ == 0) { |
13 | waitable_event_.Signal(); |
14 | } |
15 | } |
16 | |
17 | CountDownLatch::~CountDownLatch() = default; |
18 | |
19 | void CountDownLatch::Wait() { |
20 | waitable_event_.Wait(); |
21 | } |
22 | |
23 | void CountDownLatch::CountDown() { |
24 | if (--count_ == 0) { |
25 | waitable_event_.Signal(); |
26 | } |
27 | } |
28 | |
29 | } // namespace fml |
30 |