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1 /*
2  * Copyright 2012 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "SkCountdown.h"
9 #include "SkThread.h"
10 
SkCountdown(int32_t count)11 SkCountdown::SkCountdown(int32_t count)
12 : fCount(count) {}
13 
reset(int32_t count)14 void SkCountdown::reset(int32_t count) {
15     fCount = count;
16 }
17 
run()18 void SkCountdown::run() {
19     if (sk_atomic_dec(&fCount) == 1) {
20         fReady.lock();
21         fReady.signal();
22         fReady.unlock();
23     }
24 }
25 
wait()26 void SkCountdown::wait() {
27     fReady.lock();
28     while (fCount > 0) {
29         fReady.wait();
30     }
31     fReady.unlock();
32 }
33