hayodea
2a8d320f7a
Replace the current delay timeout mechanism with a spinlock. Both mechanisms try to eliminate the possibility of an in-flight async op accessing state that has been destroyed by stop(). But the spinlock is less arbitrary.
48 lines
982 B
C++
48 lines
982 B
C++
#ifndef DEVICEREATTACHER_H
|
|
#define DEVICEREATTACHER_H
|
|
|
|
#include <boostAsioLinkageFix.h>
|
|
#include <atomic>
|
|
#include <memory>
|
|
#include <boost/asio/deadline_timer.hpp>
|
|
#include <spinLock.h>
|
|
|
|
namespace smo {
|
|
|
|
class ComponentThread;
|
|
|
|
namespace device {
|
|
|
|
class DeviceManager;
|
|
|
|
class DeviceReattacher
|
|
{
|
|
public:
|
|
DeviceReattacher(
|
|
DeviceManager& parent, std::shared_ptr<ComponentThread> ioThread);
|
|
~DeviceReattacher() = default;
|
|
|
|
// Non-copyable
|
|
DeviceReattacher(const DeviceReattacher&) = delete;
|
|
DeviceReattacher& operator=(const DeviceReattacher&) = delete;
|
|
|
|
// Control methods
|
|
void start();
|
|
void stop();
|
|
|
|
private:
|
|
void scheduleNextTimeout();
|
|
void onTimeout(const boost::system::error_code& error);
|
|
|
|
DeviceManager &parent;
|
|
std::shared_ptr<ComponentThread> ioThread;
|
|
SpinLock shouldContinueLock;
|
|
bool shouldContinue;
|
|
boost::asio::deadline_timer timer;
|
|
};
|
|
|
|
} // namespace device
|
|
} // namespace smo
|
|
|
|
#endif // DEVICEREATTACHER_H
|