text: /* Copyright (c) 2017-2018 Hans-Kristian Arntzen
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  #include "event_manager.hpp"
  
  namespace Vulkan
  {
  void EventManager::init(VkDevice device)
  {
  	this->device = device;
  }
  
  EventManager::~EventManager()
  {
  	for (auto &event : events)
  		vkDestroyEvent(device, event, nullptr);
  }
  
  void EventManager::recycle(VkEvent event)
  {
  	if (event != VK_NULL_HANDLE)
  	{
  		vkResetEvent(device, event);
  		events.push_back(event);
  	}
  }
  
  VkEvent EventManager::request_cleared_event()
  {
  	if (events.empty())
  	{
  		VkEvent event;
  		VkEventCreateInfo info = { VK_STRUCTURE_TYPE_EVENT_CREATE_INFO };
  		vkCreateEvent(device, &info, nullptr, &event);
  		return event;
  	}
  	else
  	{
  		auto event = events.back();
  		events.pop_back();
  		return event;
  	}
  }
  }