diff options
author | mtklein <mtklein@chromium.org> | 2015-09-04 10:26:27 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2015-09-04 10:26:27 -0700 |
commit | 714a710c428c3166b729b7756199927ab85eb69e (patch) | |
tree | 95ddd3b1fafccdec3c3849333534e8358db556a8 /tests/OncePtrTest.cpp | |
parent | 58e524c98c1d575d37d7ef55f0e2498192ca880f (diff) |
SkOncePtr
New abstraction to replace all of: SkOnce, SkLazyPtr, SkLazyFnPtr.
BUG=skia:
Review URL: https://codereview.chromium.org/1301323006
Diffstat (limited to 'tests/OncePtrTest.cpp')
-rw-r--r-- | tests/OncePtrTest.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tests/OncePtrTest.cpp b/tests/OncePtrTest.cpp new file mode 100644 index 0000000000..1b348dfd2d --- /dev/null +++ b/tests/OncePtrTest.cpp @@ -0,0 +1,50 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "Test.h" +#include "SkOncePtr.h" +#include "SkTaskGroup.h" + +DEF_TEST(OncePtr, r) { + SkOncePtr<int> once; + + static SkAtomic<int> calls(0); + auto create = [&] { + calls.fetch_add(1); + return new int(5); + }; + + SkAtomic<int> force_a_race(sk_num_cores()); + + sk_parallel_for(sk_num_cores()*4, [&](size_t) { + force_a_race.fetch_add(-1); + while (force_a_race.load() > 0); + + int* n = once.get(create); + REPORTER_ASSERT(r, *n == 5); + }); + REPORTER_ASSERT(r, calls.load() == 1); + + delete (int*)once; +} + +/* TODO(mtklein): next CL + +SK_DECLARE_STATIC_ONCE(once_noptr); +DEF_TEST(OnceNoPtr, r) { + static SkAtomic<int> calls(0); + + SkAtomic<int> force_a_race(sk_num_cores()); + sk_parallel_for(sk_num_cores()*4, [&](size_t) { + force_a_race.fetch_add(-1); + while (force_a_race.load() > 0); + + SkOnce(&once_noptr, [&] { calls.fetch_add(1); }); + }); + REPORTER_ASSERT(r, calls.load() == 1); +} +*/ |