libs/circular_buffer/test/bounded_buffer_comparison.cpp
// Comparison of bounded buffers based on different containers.
// Copyright (c) 2003-2008 Jan Gaspar
// Copyright 2013 Paul A. Bristow. Added some Quickbook snippet markers.
// Use, modification, and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/circular_buffer.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/thread.hpp>
#include <boost/call_traits.hpp>
#include <boost/progress.hpp>
#include <boost/bind.hpp>
#include <deque>
#include <list>
#include <string>
#include <iostream>
const unsigned long QUEUE_SIZE = 1000L;
const unsigned long TOTAL_ELEMENTS = QUEUE_SIZE * 1000L;
template <class T>
class bounded_buffer {
public:
typedef boost::circular_buffer<T> container_type;
typedef typename container_type::size_type size_type;
typedef typename container_type::value_type value_type;
typedef typename boost::call_traits<value_type>::param_type param_type;
explicit bounded_buffer(size_type capacity) : m_unread(0), m_container(capacity) {}
void push_front(param_type item) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_full.wait(lock, boost::bind(&bounded_buffer<value_type>::is_not_full, this));
m_container.push_front(item);
++m_unread;
lock.unlock();
m_not_empty.notify_one();
}
void pop_back(value_type* pItem) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_empty.wait(lock, boost::bind(&bounded_buffer<value_type>::is_not_empty, this));
*pItem = m_container[--m_unread];
lock.unlock();
m_not_full.notify_one();
}
private:
bounded_buffer(const bounded_buffer&); // Disabled copy constructor
bounded_buffer& operator = (const bounded_buffer&); // Disabled assign operator
bool is_not_empty() const { return m_unread > 0; }
bool is_not_full() const { return m_unread < m_container.capacity(); }
size_type m_unread;
container_type m_container;
boost::mutex m_mutex;
boost::condition_variable m_not_empty;
boost::condition_variable m_not_full;
};
template <class T>
class bounded_buffer_space_optimized {
public:
typedef boost::circular_buffer_space_optimized<T> container_type;
typedef typename container_type::size_type size_type;
typedef typename container_type::value_type value_type;
typedef typename boost::call_traits<value_type>::param_type param_type;
explicit bounded_buffer_space_optimized(size_type capacity) : m_container(capacity) {}
void push_front(param_type item) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_full.wait(lock, boost::bind(&bounded_buffer_space_optimized<value_type>::is_not_full, this));
m_container.push_front(item);
lock.unlock();
m_not_empty.notify_one();
}
void pop_back(value_type* pItem) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_empty.wait(lock, boost::bind(&bounded_buffer_space_optimized<value_type>::is_not_empty, this));
*pItem = m_container.back();
m_container.pop_back();
lock.unlock();
m_not_full.notify_one();
}
private:
bounded_buffer_space_optimized(const bounded_buffer_space_optimized&); // Disabled copy constructor
bounded_buffer_space_optimized& operator = (const bounded_buffer_space_optimized&); // Disabled assign operator
bool is_not_empty() const { return m_container.size() > 0; }
bool is_not_full() const { return m_container.size() < m_container.capacity(); }
container_type m_container;
boost::mutex m_mutex;
boost::condition_variable m_not_empty;
boost::condition_variable m_not_full;
};
template <class T>
class bounded_buffer_deque_based {
public:
typedef std::deque<T> container_type;
typedef typename container_type::size_type size_type;
typedef typename container_type::value_type value_type;
typedef typename boost::call_traits<value_type>::param_type param_type;
explicit bounded_buffer_deque_based(size_type capacity) : m_capacity(capacity) {}
void push_front(param_type item) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_full.wait(lock, boost::bind(&bounded_buffer_deque_based<value_type>::is_not_full, this));
m_container.push_front(item);
lock.unlock();
m_not_empty.notify_one();
}
void pop_back(value_type* pItem) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_empty.wait(lock, boost::bind(&bounded_buffer_deque_based<value_type>::is_not_empty, this));
*pItem = m_container.back();
m_container.pop_back();
lock.unlock();
m_not_full.notify_one();
}
private:
bounded_buffer_deque_based(const bounded_buffer_deque_based&); // Disabled copy constructor
bounded_buffer_deque_based& operator = (const bounded_buffer_deque_based&); // Disabled assign operator
bool is_not_empty() const { return m_container.size() > 0; }
bool is_not_full() const { return m_container.size() < m_capacity; }
const size_type m_capacity;
container_type m_container;
boost::mutex m_mutex;
boost::condition_variable m_not_empty;
boost::condition_variable m_not_full;
};
template <class T>
class bounded_buffer_list_based {
public:
typedef std::list<T> container_type;
typedef typename container_type::size_type size_type;
typedef typename container_type::value_type value_type;
typedef typename boost::call_traits<value_type>::param_type param_type;
explicit bounded_buffer_list_based(size_type capacity) : m_capacity(capacity) {}
void push_front(param_type item) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_full.wait(lock, boost::bind(&bounded_buffer_list_based<value_type>::is_not_full, this));
m_container.push_front(item);
lock.unlock();
m_not_empty.notify_one();
}
void pop_back(value_type* pItem) {
boost::unique_lock<boost::mutex> lock(m_mutex);
m_not_empty.wait(lock, boost::bind(&bounded_buffer_list_based<value_type>::is_not_empty, this));
*pItem = m_container.back();
m_container.pop_back();
lock.unlock();
m_not_full.notify_one();
}
private:
bounded_buffer_list_based(const bounded_buffer_list_based&); // Disabled copy constructor
bounded_buffer_list_based& operator = (const bounded_buffer_list_based&); // Disabled assign operator
bool is_not_empty() const { return m_container.size() > 0; }
bool is_not_full() const { return m_container.size() < m_capacity; }
const size_type m_capacity;
container_type m_container;
boost::mutex m_mutex;
boost::condition_variable m_not_empty;
boost::condition_variable m_not_full;
};
template<class Buffer>
class Consumer {
typedef typename Buffer::value_type value_type;
Buffer* m_container;
value_type m_item;
public:
Consumer(Buffer* buffer) : m_container(buffer) {}
void operator()() {
for (unsigned long i = 0L; i < TOTAL_ELEMENTS; ++i) {
m_container->pop_back(&m_item);
}
}
};
template<class Buffer>
class Producer {
typedef typename Buffer::value_type value_type;
Buffer* m_container;
public:
Producer(Buffer* buffer) : m_container(buffer) {}
void operator()() {
for (unsigned long i = 0L; i < TOTAL_ELEMENTS; ++i) {
m_container->push_front(value_type());
}
}
};
template<class Buffer>
void fifo_test(Buffer* buffer) {
// Start of measurement
boost::progress_timer progress;
// Initialize the buffer with some values before launching producer and consumer threads.
for (unsigned long i = QUEUE_SIZE / 2L; i > 0; --i) {
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x581))
buffer->push_front(Buffer::value_type());
#else
buffer->push_front(BOOST_DEDUCED_TYPENAME Buffer::value_type());
#endif
}
Consumer<Buffer> consumer(buffer);
Producer<Buffer> producer(buffer);
// Start the threads.
boost::thread consume(consumer);
boost::thread produce(producer);
// Wait for completion.
consume.join();
produce.join();
// End of measurement
}
int main(int /*argc*/, char* /*argv*/[]) {
bounded_buffer<int> bb_int(QUEUE_SIZE);
std::cout << "bounded_buffer<int> ";
fifo_test(&bb_int);
bounded_buffer_space_optimized<int> bb_space_optimized_int(QUEUE_SIZE);
std::cout << "bounded_buffer_space_optimized<int> ";
fifo_test(&bb_space_optimized_int);
bounded_buffer_deque_based<int> bb_deque_based_int(QUEUE_SIZE);
std::cout << "bounded_buffer_deque_based<int> ";
fifo_test(&bb_deque_based_int);
bounded_buffer_list_based<int> bb_list_based_int(QUEUE_SIZE);
std::cout << "bounded_buffer_list_based<int> ";
fifo_test(&bb_list_based_int);
bounded_buffer<std::string> bb_string(QUEUE_SIZE);
std::cout << "bounded_buffer<std::string> ";
fifo_test(&bb_string);
bounded_buffer_space_optimized<std::string> bb_space_optimized_string(QUEUE_SIZE);
std::cout << "bounded_buffer_space_optimized<std::string> ";
fifo_test(&bb_space_optimized_string);
bounded_buffer_deque_based<std::string> bb_deque_based_string(QUEUE_SIZE);
std::cout << "bounded_buffer_deque_based<std::string> ";
fifo_test(&bb_deque_based_string);
bounded_buffer_list_based<std::string> bb_list_based_string(QUEUE_SIZE);
std::cout << "bounded_buffer_list_based<std::string> ";
fifo_test(&bb_list_based_string);
return 0;
}
/*
//[bounded_buffer_comparison_output
Description: Autorun "J:\Cpp\Misc\Debug\bounded_buffer_comparison.exe"
bounded_buffer<int> 5.15 s
bounded_buffer_space_optimized<int> 5.71 s
bounded_buffer_deque_based<int> 15.57 s
bounded_buffer_list_based<int> 17.33 s
bounded_buffer<std::string> 24.49 s
bounded_buffer_space_optimized<std::string> 28.33 s
bounded_buffer_deque_based<std::string> 29.45 s
bounded_buffer_list_based<std::string> 31.29 s
//] //[bounded_buffer_comparison_output]
*/