49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
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/*
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* Copyright 2015 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 "Test.h"
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#include "SkOncePtr.h"
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#include "SkTaskGroup.h"
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DEF_TEST(OncePtr, r) {
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SkOncePtr<int> once;
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static SkAtomic<int> calls(0);
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auto create = [&] {
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calls.fetch_add(1);
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return new int(5);
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};
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SkAtomic<int> force_a_race(sk_num_cores());
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sk_parallel_for(sk_num_cores()*4, [&](size_t) {
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force_a_race.fetch_add(-1);
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while (force_a_race.load() > 0);
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int* n = once.get(create);
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REPORTER_ASSERT(r, *n == 5);
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});
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REPORTER_ASSERT(r, calls.load() == 1);
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}
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/* TODO(mtklein): next CL
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SK_DECLARE_STATIC_ONCE(once_noptr);
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DEF_TEST(OnceNoPtr, r) {
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static SkAtomic<int> calls(0);
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SkAtomic<int> force_a_race(sk_num_cores());
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sk_parallel_for(sk_num_cores()*4, [&](size_t) {
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force_a_race.fetch_add(-1);
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while (force_a_race.load() > 0);
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SkOnce(&once_noptr, [&] { calls.fetch_add(1); });
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});
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REPORTER_ASSERT(r, calls.load() == 1);
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}
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*/
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