在 C 语言中，使用 Boost 库创建线程池需要一个简单的过程。
首先，实例化一个 asio::io_service 和一个 thread_group。随后，使用连接到 io_service 的线程填充 thread_group。然后可以利用 boost::bind 函数将任务分配给线程。
要停止线程，只需停止 io_service 并将所有线程组合起来即可。
必要的头文件是：
#include <boost/asio/io_service.hpp> #include <boost/bind.hpp> #include <boost/thread/thread.hpp>
下面提供了一个示例实现：
// Establish an io_service and a thread_group (essentially a pool)
boost::asio::io_service ioService;
boost::thread_group threadpool;
// Commence ioService processing loop
boost::asio::io_service::work work(ioService);
// Add threads to pool (e.g., two in this case)
threadpool.create_thread(
boost::bind(&boost::asio::io_service::run, &ioService)
);
threadpool.create_thread(
boost::bind(&boost::asio::io_service::run, &ioService)
);
// Assign tasks to thread pool via ioService.post()
// Refer to "http://www.boost.org/doc/libs/1_54_0/libs/bind/bind.html#with_functions" for details on boost::bind
ioService.post(boost::bind(myTask, "Hello World!"));
ioService.post(boost::bind(clearCache, "./cache"));
ioService.post(boost::bind(getSocialUpdates, "twitter,gmail,facebook,tumblr,reddit"));
// Halt ioService processing loop (no new tasks will execute after this point)
ioService.stop();
// Wait and combine threads in thread pool
threadpool.join_all();（来源：Recipes
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