C++ - Thread Pool

Table of Contents

Introduction

Threadpool is a C++ thread pool written by Philipp Henkel based on boost library. It provides a variety of thread pools with easy usage.

Installation

As a prequisite, boost library should be installed in advance, e.g., 

pacman -S boost

Threadpool consists only of header files, and therefore the building operation is not needed. The only operation is to copy the header file threadpool.hpp and folder threadpool/ to directory /usr/include/boost.

Usage

For usage, header file #include <boost/threadpool.hpp> should be included.

An example of first-in first-out (FIFO) thread pool utilization can be provided as follows. 

#include <memory>
#include <boost/threadpool.hpp>

using namespace std;
using namespace boost::threadpool;

int main(int argc, char *argv[])
{
    /// Create a FIFO thread pool with 9 worker threads.
    unique_ptr<pool> tp = make_unique<pool>(9);

    /// Submit 10000 tasks, function(para1, para2), to the thread pool for excutation.
    for (size_t para1 = 0; para1 < 100; ++para1)
        for (size_t para2 = 0; para2 < 100; ++para2)
            tp->schedule(bind(&function, para1, para2));

    /// Synchronization for all the threads.
    tp->wait();

    return 0;
}