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