event_queue.h 2.7 KB

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  1. /*************************************************************************/
  2. /* event_queue.h */
  3. /*************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /*************************************************************************/
  8. /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
  9. /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /*************************************************************************/
  30. #ifndef EVENT_QUEUE_H
  31. #define EVENT_QUEUE_H
  32. #include "object.h"
  33. /**
  34. @author Juan Linietsky <reduzio@gmail.com>
  35. */
  36. class EventQueue {
  37. enum {
  38. DEFAULT_EVENT_QUEUE_SIZE_KB = 256
  39. };
  40. struct Event {
  41. uint32_t instance_ID;
  42. StringName method;
  43. int args;
  44. };
  45. uint8_t *event_buffer;
  46. uint32_t buffer_end;
  47. uint32_t buffer_max_used;
  48. uint32_t buffer_size;
  49. public:
  50. Error push_call(uint32_t p_instance_ID, const StringName &p_method, VARIANT_ARG_LIST);
  51. void flush_events();
  52. EventQueue(uint32_t p_buffer_size = DEFAULT_EVENT_QUEUE_SIZE_KB * 1024);
  53. ~EventQueue();
  54. };
  55. #endif