| scroggo@google.com | 4177ef4 | 2012-10-31 15:52:16 +0000 | [diff] [blame^] | 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 | |
| 11 | SkCountdown::SkCountdown(int32_t count) |
| 12 | : fCount(count) {} |
| 13 | |
| 14 | void SkCountdown::reset(int32_t count) { |
| 15 | fCount = count; |
| 16 | } |
| 17 | |
| 18 | void SkCountdown::run() { |
| 19 | if (sk_atomic_dec(&fCount) == 1) { |
| 20 | fReady.lock(); |
| 21 | fReady.signal(); |
| 22 | fReady.unlock(); |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | void SkCountdown::wait() { |
| 27 | fReady.lock(); |
| 28 | while (fCount > 0) { |
| 29 | fReady.wait(); |
| 30 | } |
| 31 | fReady.unlock(); |
| 32 | } |
| 33 | |