/**
 ******************************************************************************
 * Xenia : Xbox 360 Emulator Research Project                                 *
 ******************************************************************************
 * Copyright 2013 Ben Vanik. All rights reserved.                             *
 * Released under the BSD license - see LICENSE in the root for more details. *
 ******************************************************************************
 */

#include "xenia/kernel/objects/xevent.h"

namespace xe {
namespace kernel {

XEvent::XEvent(KernelState* kernel_state)
    : XObject(kernel_state, kTypeEvent), handle_(NULL) {}

XEvent::~XEvent() {
  if (handle_) {
    CloseHandle(handle_);
  }
}

void XEvent::Initialize(bool manual_reset, bool initial_state) {
  assert_null(handle_);

  handle_ = CreateEvent(NULL, manual_reset, initial_state, NULL);
}

void XEvent::InitializeNative(void* native_ptr, DISPATCH_HEADER& header) {
  assert_null(handle_);

  bool manual_reset;
  switch ((header.type_flags >> 24) & 0xFF) {
    case 0x00:  // EventNotificationObject (manual reset)
      manual_reset = true;
      break;
    case 0x01:  // EventSynchronizationObject (auto reset)
      manual_reset = false;
      break;
    default:
      assert_always();
      return;
  }

  bool initial_state = header.signal_state ? true : false;

  handle_ = CreateEvent(NULL, manual_reset, initial_state, NULL);
}

int32_t XEvent::Set(uint32_t priority_increment, bool wait) {
  return SetEvent(handle_) ? 1 : 0;
}

int32_t XEvent::Pulse(uint32_t priority_increment, bool wait) {
  return PulseEvent(handle_) ? 1 : 0;
}

int32_t XEvent::Reset() { return ResetEvent(handle_) ? 1 : 0; }

void XEvent::Clear() { ResetEvent(handle_); }

}  // namespace kernel
}  // namespace xe