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/*
* 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 "SkSharedMutex.h"
#include "SkTaskGroup.h"
#include "Test.h"
DEF_TEST(SkSharedMutexBasic, r) {
SkSharedMutex sm;
sm.acquire();
sm.assertHeld();
sm.release();
sm.acquireShared();
sm.assertHeldShared();
sm.releaseShared();
}
DEF_TEST(SkSharedMutexMultiThreaded, r) {
SkSharedMutex sm;
static const int kSharedSize = 10;
int shared[kSharedSize];
int value = 0;
for (int i = 0; i < kSharedSize; ++i) {
shared[i] = 0;
}
sk_parallel_for(8, [&](int threadIndex) {
if (threadIndex % 4 != 0) {
for (int c = 0; c < 100000; ++c) {
sm.acquireShared();
sm.assertHeldShared();
int v = shared[0];
for (int i = 1; i < kSharedSize; ++i) {
REPORTER_ASSERT(r, v == shared[i]);
}
sm.releaseShared();
}
} else {
for (int c = 0; c < 100000; ++c) {
sm.acquire();
sm.assertHeld();
value += 1;
for (int i = 0; i < kSharedSize; ++i) {
shared[i] = value;
}
sm.release();
}
}
});
}
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