1 /************************************************************************************

2

3 Filename : OVR_System.cpp

4 Content : General kernel initialization/cleanup, including that

5 of the memory allocator.

6 Created : September 19, 2012

7 Notes :

8

9 Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.

10

11 Use of this software is subject to the terms of the Oculus license

12 agreement provided at the time of installation or download, or which

13 otherwise accompanies this software in either electronic or hard copy form.

14

15 ************************************************************************************/

16

17 #include "OVR_System.h"

18 #include "OVR_Threads.h"

19 #include "OVR_Timer.h"

20

21 namespace OVR {

22

23 // ***** OVR::System Implementation

24

25 // Initializes System core, installing allocator.

26 void System::Init(Log* log, Allocator *palloc)

27 {

28 if (!Allocator::GetInstance())

29 {

30 Log::SetGlobalLog(log);

31 Timer::initializeTimerSystem();

32 Allocator::setInstance(palloc);

33 }

34 else

35 {

36 OVR_DEBUG_LOG(("System::Init failed - duplicate call."));

37 }

38 }

39

40 void System::Destroy()

41 {

42 if (Allocator::GetInstance())

43 {

44 // Wait for all threads to finish; this must be done so that memory

45 // allocator and all destructors finalize correctly.

46 #ifdef OVR_ENABLE_THREADS

47 Thread::FinishAllThreads();

48 #endif

49

50 // Shutdown heap and destroy SysAlloc singleton, if any.

51 Allocator::GetInstance()->onSystemShutdown();

52 Allocator::setInstance(0);

53

54 Timer::shutdownTimerSystem();

55 Log::SetGlobalLog(Log::GetDefaultLog());

56 }

57 else

58 {

59 OVR_DEBUG_LOG(("System::Destroy failed - System not initialized."));

60 }

61 }

62

63 // Returns 'true' if system was properly initialized.

64 bool System::IsInitialized()

65 {

66 return Allocator::GetInstance() != 0;

67 }

68

69 } // OVR

70