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EventLocker.h
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61 lines (52 loc) · 1.17 KB
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#include <windows.h>
#include <string>
class EventLocker
{
public:
EventLocker(HANDLE h)
{
eventHandle = h;
SetEvent(eventHandle);
}
static std::optional<EventLocker> Get(std::wstring eventName)
{
EventLocker locker(eventName);
if (!locker.eventHandle)
{
return {};
}
return locker;
}
EventLocker(EventLocker& e) = delete;
EventLocker& operator=(EventLocker& e) = delete;
EventLocker(EventLocker&& e) noexcept
{
this->eventHandle = e.eventHandle;
e.eventHandle = nullptr;
}
EventLocker& operator=(EventLocker&& e) noexcept
{
this->eventHandle = e.eventHandle;
e.eventHandle = nullptr;
}
~EventLocker()
{
if (eventHandle)
{
ResetEvent(eventHandle);
CloseHandle(eventHandle);
eventHandle = nullptr;
}
}
private:
EventLocker(std::wstring eventName)
{
eventHandle = CreateEvent(nullptr, true, false, eventName.c_str());
if (!eventHandle)
{
return;
}
SetEvent(eventHandle);
}
HANDLE eventHandle;
};