The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/utils/SkCountdown.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,32 @@
     1.4 +/*
     1.5 + * Copyright 2012 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "SkCountdown.h"
    1.12 +#include "SkThread.h"
    1.13 +
    1.14 +SkCountdown::SkCountdown(int32_t count)
    1.15 +: fCount(count) {}
    1.16 +
    1.17 +void SkCountdown::reset(int32_t count) {
    1.18 +    fCount = count;
    1.19 +}
    1.20 +
    1.21 +void SkCountdown::run() {
    1.22 +    if (sk_atomic_dec(&fCount) == 1) {
    1.23 +        fReady.lock();
    1.24 +        fReady.signal();
    1.25 +        fReady.unlock();
    1.26 +    }
    1.27 +}
    1.28 +
    1.29 +void SkCountdown::wait() {
    1.30 +    fReady.lock();
    1.31 +    while (fCount > 0) {
    1.32 +        fReady.wait();
    1.33 +    }
    1.34 +    fReady.unlock();
    1.35 +}