rocksdb/thrift/lib/cpp/concurrency/test/TimerManagerTests.h
Dhruba Borthakur 80c663882a Create leveldb server via Thrift.
Summary:
First draft.
Unit tests pass.

Test Plan: unit tests attached

Reviewers: heyongqiang

Reviewed By: heyongqiang

Differential Revision: https://reviews.facebook.net/D3969
2012-07-07 09:42:39 -07:00

143 lines
3.5 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#include "thrift/lib/cpp/concurrency/TimerManager.h"
#include "thrift/lib/cpp/concurrency/PosixThreadFactory.h"
#include "thrift/lib/cpp/concurrency/Monitor.h"
#include "thrift/lib/cpp/concurrency/Util.h"
#include <assert.h>
#include <iostream>
namespace apache { namespace thrift { namespace concurrency { namespace test {
using namespace apache::thrift::concurrency;
/**
* ThreadManagerTests class
*
* @version $Id:$
*/
class TimerManagerTests {
public:
static const double ERROR;
class Task: public Runnable {
public:
Task(Monitor& monitor, int64_t timeout) :
_timeout(timeout),
_startTime(Util::currentTime()),
_monitor(monitor),
_success(false),
_done(false) {}
~Task() { std::cerr << this << std::endl; }
void run() {
_endTime = Util::currentTime();
// Figure out error percentage
int64_t delta = _endTime - _startTime;
delta = delta > _timeout ? delta - _timeout : _timeout - delta;
float error = delta / _timeout;
if(error < ERROR) {
_success = true;
}
_done = true;
std::cout << "\t\t\tTimerManagerTests::Task[" << this << "] done" << std::endl; //debug
{Synchronized s(_monitor);
_monitor.notifyAll();
}
}
int64_t _timeout;
int64_t _startTime;
int64_t _endTime;
Monitor& _monitor;
bool _success;
bool _done;
};
/**
* This test creates two tasks and waits for the first to expire within 10%
* of the expected expiration time. It then verifies that the timer manager
* properly clean up itself and the remaining orphaned timeout task when the
* manager goes out of scope and its destructor is called.
*/
bool test00(int64_t timeout=1000LL) {
shared_ptr<TimerManagerTests::Task> orphanTask = shared_ptr<TimerManagerTests::Task>(new TimerManagerTests::Task(_monitor, 10 * timeout));
{
TimerManager timerManager;
timerManager.threadFactory(shared_ptr<PosixThreadFactory>(new PosixThreadFactory()));
timerManager.start();
assert(timerManager.state() == TimerManager::STARTED);
shared_ptr<TimerManagerTests::Task> task = shared_ptr<TimerManagerTests::Task>(new TimerManagerTests::Task(_monitor, timeout));
{
Synchronized s(_monitor);
timerManager.add(orphanTask, 10 * timeout);
timerManager.add(task, timeout);
_monitor.wait();
}
assert(task->_done);
std::cout << "\t\t\t" << (task->_success ? "Success" : "Failure") << "!" << std::endl;
}
// timerManager.stop(); This is where it happens via destructor
assert(!orphanTask->_done);
return true;
}
friend class TestTask;
Monitor _monitor;
};
const double TimerManagerTests::ERROR = .20;
}}}} // apache::thrift::concurrency