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ThreadPool
轻量级的 C++11 线程池
版权
Public Domain。
您可以放心的在您的项目里面使用，修改代码，不需要考虑任何额外的限制，如果我没有给出正确的版权，请联系我。
概览
ThreadPool 是一个动态的线程池。它能在运行时动态的修改worker的数量。同时也能在运行时等待所有任务结束并重新开始。
构建
请使用支持C++11的编译器，然后安装cmake。
在源代码目录下面新建build文件夹，然后进入build目录，运行cmake .. && make
您将看到basic事例，直接运行即可
使用
使用AddTask接口来将新的任务放置到线程池里进行计算，使用AddWorkers来增加工作线程的数量，使用WaitAll来等待当前任务队列里面所有任务执行完成。一个例子如下，
#include <iostream>
#include "threadpool.h"
int sleep_ms = 1000;
int main() {
auto f = { std::cout << "foo\n"; };
auto g = { std::cout << "goo\n"; };
auto h = { std::cout << "hoo\n"; };
auto j = { std::cout << "joo\n"; };
ThreadPool pool(4);
for (int i = 0; i < 20; i++) {
if (i == 5) {
pool.AddWorkers(2);
}
pool.AddTask(f);
}
pool.WaitAll();
std::cout << "===============\n";
for (int i = 0; i < 5; i++) {
pool.AddTask(g);
pool.AddTask(h);
}
pool.WaitAll();
std::cout << "===============\n";
for (int i = 0; i < 5; i++) {
pool.AddTask(j);
}
}