pool_vector.cpp 3.1 KB

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  1. /*************************************************************************/
  2. /* pool_vector.cpp */
  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. #include "pool_vector.h"
  31. Mutex *pool_vector_lock = NULL;
  32. PoolAllocator *MemoryPool::memory_pool = NULL;
  33. uint8_t *MemoryPool::pool_memory = NULL;
  34. size_t *MemoryPool::pool_size = NULL;
  35. MemoryPool::Alloc *MemoryPool::allocs = NULL;
  36. MemoryPool::Alloc *MemoryPool::free_list = NULL;
  37. uint32_t MemoryPool::alloc_count = 0;
  38. uint32_t MemoryPool::allocs_used = 0;
  39. Mutex *MemoryPool::alloc_mutex = NULL;
  40. size_t MemoryPool::total_memory = 0;
  41. size_t MemoryPool::max_memory = 0;
  42. void MemoryPool::setup(uint32_t p_max_allocs) {
  43. allocs = memnew_arr(Alloc, p_max_allocs);
  44. alloc_count = p_max_allocs;
  45. allocs_used = 0;
  46. for (uint32_t i = 0; i < alloc_count - 1; i++) {
  47. allocs[i].free_list = &allocs[i + 1];
  48. }
  49. free_list = &allocs[0];
  50. alloc_mutex = Mutex::create();
  51. }
  52. void MemoryPool::cleanup() {
  53. memdelete_arr(allocs);
  54. memdelete(alloc_mutex);
  55. ERR_FAIL_COND_MSG(allocs_used > 0, "There are still MemoryPool allocs in use at exit!");
  56. }