1 /* 2 * Copyright 2015 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 "Test.h" 9 #include "SkOncePtr.h" 10 #include "SkTaskGroup.h" 11 12 DEF_TEST(OncePtr, r) { 13 SkOncePtr<int> once; 14 15 static SkAtomic<int> calls(0); 16 auto create = [&] { 17 calls.fetch_add(1); 18 return new int(5); 19 }; 20 21 SkTaskGroup().batch(sk_num_cores()*4, [&](size_t) { 22 int* n = once.get(create); 23 REPORTER_ASSERT(r, *n == 5); 24 }); 25 REPORTER_ASSERT(r, calls.load() == 1); 26 } 27 28 /* TODO(mtklein): next CL 29 30 SK_DECLARE_STATIC_ONCE(once_noptr); 31 DEF_TEST(OnceNoPtr, r) { 32 static SkAtomic<int> calls(0); 33 34 SkAtomic<int> force_a_race(sk_num_cores()); 35 SkTaskGroup().batch(sk_num_cores()*4, [&](size_t) { 36 force_a_race.fetch_add(-1); 37 while (force_a_race.load() > 0); 38 39 SkOnce(&once_noptr, [&] { calls.fetch_add(1); }); 40 }); 41 REPORTER_ASSERT(r, calls.load() == 1); 42 } 43 */ 44
