Duckstation/src/common/event.h

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#pragma once
#include "types.h"
// #define USE_WIN32_EVENT_OBJECTS 1
#if defined(WIN32) && !defined(USE_WIN32_EVENT_OBJECTS)
#include "windows_headers.h"
#include <atomic>
#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
#include <atomic>
#include <pthread.h>
#else
#include <atomic>
#include <condition_variable>
#include <mutex>
#endif
namespace Common {
class Event
{
public:
Event(bool auto_reset = false);
~Event();
void Reset();
void Signal();
void Wait();
bool TryWait(u32 timeout_in_ms);
2020-04-05 13:25:45 +00:00
static void WaitForMultiple(Event** events, u32 num_events);
private:
#if defined(WIN32) && defined(USE_WIN32_EVENT_OBJECTS)
void* m_event_handle;
#elif defined(WIN32)
CRITICAL_SECTION m_cs;
CONDITION_VARIABLE m_cv;
std::atomic_uint32_t m_waiters{0};
std::atomic_bool m_signaled{false};
bool m_auto_reset = false;
#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
pthread_mutex_t m_mutex;
pthread_cond_t m_cv;
std::atomic_uint32_t m_waiters{0};
std::atomic_bool m_signaled{false};
bool m_auto_reset = false;
#else
std::mutex m_mutex;
std::condition_variable m_cv;
std::atomic_uint32_t m_waiters{0};
std::atomic_bool m_signaled{false};
bool m_auto_reset = false;
#endif
};
} // namespace Common