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编程之美 10 // 不确定对否class Semaphore {public: Semaphore(int count_, int max_count_) : count(count_), max_count(max_count_) {} void signal() { std::unique_lock<std::mutex> lock(m...

#include <mutex>#include <condition_variable>#include <thread>class Semaphore {public: Semaphore(int count_ = 0): count(count_) {} void notify() { std::unique_lock<std::mu...