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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "test_util/mock_time_env.h"
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#include "test_util/sync_point.h"
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namespace ROCKSDB_NAMESPACE {
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// TODO: this is a workaround for the different behavior on different platform
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// for timedwait timeout. Ideally timedwait API should be moved to env.
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// details: PR #7101.
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void MockSystemClock::InstallTimedWaitFixCallback() {
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#ifndef NDEBUG
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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#ifdef OS_MACOSX
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// This is an alternate way (vs. SpecialEnv) of dealing with the fact
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// that on some platforms, pthread_cond_timedwait does not appear to
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// release the lock for other threads to operate if the deadline time
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// is already passed. (TimedWait calls are currently a bad abstraction
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// because the deadline parameter is usually computed from Env time,
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// but is interpreted in real clock time.)
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SyncPoint::GetInstance()->SetCallBack(
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"InstrumentedCondVar::TimedWaitInternal", [&](void* arg) {
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uint64_t time_us = *reinterpret_cast<uint64_t*>(arg);
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if (time_us < this->RealNowMicros()) {
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*reinterpret_cast<uint64_t*>(arg) = this->RealNowMicros() + 1000;
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}
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});
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#endif // OS_MACOSX
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SyncPoint::GetInstance()->EnableProcessing();
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#endif // !NDEBUG
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}
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} // namespace ROCKSDB_NAMESPACE
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