mirror of
https://github.com/rakshasa/rtorrent.git
synced 2026-08-06 10:12:30 +00:00
rakshasa
47 lines
982 B
C++
47 lines
982 B
C++
#ifndef RTORRENT_UTILS_WAITPID_QUEUE_H
|
|
#define RTORRENT_UTILS_WAITPID_QUEUE_H
|
|
|
|
#include <future>
|
|
#include <set>
|
|
#include <torrent/system/common.h>
|
|
|
|
namespace utils {
|
|
|
|
class WaitpidQueue {
|
|
public:
|
|
WaitpidQueue();
|
|
~WaitpidQueue();
|
|
|
|
uint32_t size() const;
|
|
|
|
void close_pid(int pid);
|
|
|
|
void wait_for(uint32_t max_remaining);
|
|
|
|
// TODO: Add a signal handler to tell the worker thread to wake up. Use a counter to batch wakeups.
|
|
|
|
private:
|
|
WaitpidQueue(const WaitpidQueue&) = delete;
|
|
WaitpidQueue& operator=(const WaitpidQueue&) = delete;
|
|
|
|
std::future<void> m_worker;
|
|
|
|
align_cacheline
|
|
|
|
std::mutex m_mutex;
|
|
std::set<pid_t> m_queue;
|
|
|
|
align_cacheline
|
|
|
|
std::atomic<bool> m_wakeup_worker{};
|
|
std::atomic<bool> m_should_shutdown{};
|
|
|
|
std::atomic<uint32_t> m_remaining{};
|
|
};
|
|
|
|
inline uint32_t WaitpidQueue::size() const { return m_remaining.load(std::memory_order_acquire); }
|
|
|
|
} // namespace utils
|
|
|
|
#endif
|