e9e0dea15b
- moves test to LazyPtrTest.cpp - adds the ability to use a Create() method with an argument BUG=skia: Review URL: https://codereview.chromium.org/669783002
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
#include "Test.h"
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#include "SkLazyPtr.h"
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#include "SkTaskGroup.h"
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namespace {
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struct CreateIntFromFloat {
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CreateIntFromFloat(float val) : fVal(val) {}
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int* operator()() const { return SkNEW_ARGS(int, ((int)fVal)); }
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float fVal;
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};
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// As a template argument this must have external linkage.
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void custom_destroy(int* ptr) { *ptr = 99; }
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} // namespace
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DEF_TEST(LazyPtr, r) {
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// Basic usage: calls SkNEW(int).
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SkLazyPtr<int> lazy;
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int* ptr = lazy.get();
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REPORTER_ASSERT(r, ptr);
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REPORTER_ASSERT(r, lazy.get() == ptr);
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// Advanced usage: calls a functor.
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SkLazyPtr<int> lazyFunctor;
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int* six = lazyFunctor.get(CreateIntFromFloat(6.4f));
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REPORTER_ASSERT(r, six);
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REPORTER_ASSERT(r, 6 == *six);
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// Just makes sure this is safe.
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SkLazyPtr<double> neverRead;
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// SkLazyPtr supports custom destroy methods.
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{
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SkLazyPtr<int, custom_destroy> customDestroy;
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ptr = customDestroy.get();
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// custom_destroy called here.
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}
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REPORTER_ASSERT(r, ptr);
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REPORTER_ASSERT(r, 99 == *ptr);
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// Since custom_destroy didn't actually delete ptr, we do now.
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SkDELETE(ptr);
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}
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namespace {
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struct Racer : public SkRunnable {
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Racer() : fLazy(NULL), fSeen(NULL) {}
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virtual void run() SK_OVERRIDE { fSeen = fLazy->get(); }
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SkLazyPtr<int>* fLazy;
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int* fSeen;
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};
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} // namespace
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DEF_TEST(LazyPtr_Threaded, r) {
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static const int kRacers = 321;
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SkLazyPtr<int> lazy;
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Racer racers[kRacers];
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for (int i = 0; i < kRacers; i++) {
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racers[i].fLazy = &lazy;
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}
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SkTaskGroup tg;
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for (int i = 0; i < kRacers; i++) {
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tg.add(racers + i);
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}
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tg.wait();
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for (int i = 1; i < kRacers; i++) {
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REPORTER_ASSERT(r, racers[i].fSeen);
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REPORTER_ASSERT(r, racers[i].fSeen == racers[0].fSeen);
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}
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}
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