/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkOnce.h"
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#include "SkTaskGroup.h"
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#include "Test.h"
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static void add_five(int* x) {
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*x += 5;
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}
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DEF_TEST(SkOnce_Singlethreaded, r) {
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int x = 0;
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// No matter how many times we do this, x will be 5.
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SkOnce once;
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once(add_five, &x);
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once(add_five, &x);
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once(add_five, &x);
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once(add_five, &x);
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once(add_five, &x);
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REPORTER_ASSERT(r, 5 == x);
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}
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DEF_TEST(SkOnce_Multithreaded, r) {
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int x = 0;
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// Run a bunch of tasks to be the first to add six to x.
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SkOnce once;
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SkTaskGroup().batch(1021, [&](int) {
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once([&] { x += 6; });
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});
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// Only one should have done the +=.
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REPORTER_ASSERT(r, 6 == x);
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}
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static int gX = 0;
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static void inc_gX() { gX++; }
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DEF_TEST(SkOnce_NoArg, r) {
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SkOnce once;
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once(inc_gX);
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once(inc_gX);
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once(inc_gX);
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REPORTER_ASSERT(r, 1 == gX);
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}
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