Mutex.h 2.1 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
  1. //
  2. // Copyright (c) 2008-2017 the Urho3D project.
  3. //
  4. // Permission is hereby granted, free of charge, to any person obtaining a copy
  5. // of this software and associated documentation files (the "Software"), to deal
  6. // in the Software without restriction, including without limitation the rights
  7. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  8. // copies of the Software, and to permit persons to whom the Software is
  9. // furnished to do so, subject to the following conditions:
  10. //
  11. // The above copyright notice and this permission notice shall be included in
  12. // all copies or substantial portions of the Software.
  13. //
  14. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20. // THE SOFTWARE.
  21. //
  22. #pragma once
  23. #include "Atomic/Atomic.h"
  24. namespace Atomic
  25. {
  26. /// Operating system mutual exclusion primitive.
  27. class ATOMIC_API Mutex
  28. {
  29. public:
  30. /// Construct.
  31. Mutex();
  32. /// Destruct.
  33. ~Mutex();
  34. /// Acquire the mutex. Block if already acquired.
  35. void Acquire();
  36. /// Try to acquire the mutex without locking. Return true if successful.
  37. bool TryAcquire();
  38. /// Release the mutex.
  39. void Release();
  40. private:
  41. /// Mutex handle.
  42. void* handle_;
  43. };
  44. /// Lock that automatically acquires and releases a mutex.
  45. class ATOMIC_API MutexLock
  46. {
  47. public:
  48. /// Construct and acquire the mutex.
  49. MutexLock(Mutex& mutex);
  50. /// Destruct. Release the mutex.
  51. ~MutexLock();
  52. private:
  53. /// Prevent copy construction.
  54. MutexLock(const MutexLock& rhs);
  55. /// Prevent assignment.
  56. MutexLock& operator =(const MutexLock& rhs);
  57. /// Mutex reference.
  58. Mutex& mutex_;
  59. };
  60. }