_ak_memory_mgr_8h

Other Documentation

Wwise SDK 2022.1.8

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 /// \file

 /// Memory Manager namespace.

 #ifndef _AKMEMORYMGR_H_

 #define _AKMEMORYMGR_H_

 #if !defined( AK_OPTIMIZED ) && !( defined AK_DISABLE_MEMDEBUG )

     #ifndef AK_MEMDEBUG

         #define AK_MEMDEBUG

     #endif

 #endif

 #include <AK/SoundEngine/Common/AkTypes.h>

 #include <AK/SoundEngine/Common/AkSoundEngineExport.h>

 struct AkMemSettings;

 /// Memory category IDs.

 enum AkMemID

 {

     AkMemID_Object,                 ///< Generic placeholder for allocations tied to the Wwise project.

     AkMemID_Event,                  ///< Events from the Wwise project.

     AkMemID_Structure,              ///< Structures from the Wwise project.

     AkMemID_Media,                  ///< Media from the Wwise project.

     AkMemID_GameObject,             ///< Game Objects and related.

     AkMemID_Processing,             ///< Anything tied to instancing and processing of the DSP graph.

     AkMemID_ProcessingPlugin,       ///< Plug-in allocations related to the DSP graph.

     AkMemID_Streaming,              ///< Streaming Manager objects.

     AkMemID_StreamingIO,            ///< Streaming Manager I/O memory.

     AkMemID_SpatialAudio,           ///< Spatial audio.

     AkMemID_SpatialAudioGeometry,   ///< Spatial audio geometry data.

     AkMemID_SpatialAudioPaths,      ///< Spatial audio paths data.

     AkMemID_GameSim,                ///< Game Simulator allocations.

     AkMemID_MonitorQueue,           ///< Monitor Queue.

     AkMemID_Profiler,               ///< Profiler.

     AkMemID_FilePackage,            ///< File packager.

     AkMemID_SoundEngine,            ///< Base sound engine allocations (managers, etc).

     AkMemID_Integration,            ///< Game engine integration allocations.

     AkMemID_JobMgr,                 ///< Allocations for Sound Engine jobs and job dependencies.

     AkMemID_NUM,                    ///< Category count.

     AkMemID_MASK = 0x1FFFFFFF,      ///< Mask for category IDs.

     AkMemType_Media = 0x20000000,   ///< Media memory type bit.

     AkMemType_Device = 0x40000000,  ///< Device memory type bit.

     AkMemType_NoTrack = 0x80000000  ///< Do not track this allocation.

 };

 namespace AK

 {

     /// Memory Manager namespace.

     /// \remarks The functions in this namespace are thread-safe, unless stated otherwise.

     /// \sa

     /// - \ref memorymanager

     namespace MemoryMgr

     {

         /// Memory category statistics.

         /// \remarks These statistics are not collected in the Release configuration of

         /// the default memory manager implementation.

         /// \sa

         /// - AK::MemoryMgr::GetCategoryStats()

         /// - \ref memorymanager

         struct CategoryStats

         {

             // Current state

             AkUInt64 uUsed;         ///< Used memory (in bytes)

             // Statistics

             AkUInt64 uPeakUsed;     ///< Peak used memory (in bytes)

             AkUInt32 uAllocs;       ///< Number of allocation calls since initialization

             AkUInt32 uFrees;        ///< Number of free calls since initialization

         };

         /// Memory global statistics.

         /// \remarks These statistics are not collected in the Release configuration of

         /// the default memory manager implementation.

         /// \sa

         /// - AK::MemoryMgr::GetGlobalStats()

         /// - \ref memorymanager

         struct GlobalStats

         {

             AkUInt64 uUsed;         ///< Total memory used including all categories (in bytes)

             AkUInt64 uDeviceUsed;   ///< Total device memory used including all categories (in bytes)

             AkUInt64 uReserved;     ///< Total reserved memory. (Used and unused). Will return 0 if the reserved memory is not traceable.

             AkUInt64 uMax;          ///< Maximum total allocation size, specified in the initialization settings through uMemAllocationSizeLimit. Will be 0 if no limit was set.

         };

         ////////////////////////////////////////////////////////////////////////

         /// @name Initialization

         //@{

         /// Query whether the Memory Manager has been sucessfully initialized.

         /// \warning This function is not thread-safe. It should not be called at the same time as MemoryMgr::Init or MemoryMgr::Term.

         /// \return True if the Memory Manager is initialized, False otherwise

         /// \sa

         /// - AK::MemoryMgr::Init()

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( bool, IsInitialized )();

         /// Terminate the Memory Manager.

         /// \warning This function is not thread-safe. It is not valid to allocate memory or otherwise interact with the memory manager during or after this call.

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void, Term )();

         /// Performs whatever steps are required to initialize a thread for use with the memory manager.

         /// For example initializing thread local storage that the allocator requires to work.

         /// The default implementation of the memory manager performs thread initialization automatically and therefore this call is optional.

         /// For implementations where the cost of automatically initializing a thread for use with an allocator would be prohibitively expensive

         /// this call allows you to perform the initialization once during, for example, thread creation.

         /// \sa

         /// - AkMemInitForThread

         AK_EXTERNAPIFUNC( void, InitForThread )();

         /// Allows you to manually terminate a thread for use with the memory manager.

         /// The default implementation of the memory manager requires that all threads that interact with the memory manager call this function prior

         /// to either their termination or the termination of the memory manager. Threads not created by the sound engine itself will not have this

         /// function called for them automatically.

         /// Take care to call this function for any thread, not owned by wwise, that may have interacted with the memory manager. For example job system workers.

         /// \sa

         /// - AkMemTermForThread

         AK_EXTERNAPIFUNC( void, TermForThread )();

         /// Allows you to "trim" a thread being used with the memory manager.

         /// This is a function that will be called periodically by some Wwise-owned threads,

         /// so that any thread-local state can be cleaned up in order to return memory for other systems to use.

         /// For example, this can be used to return thread-local heaps to global stores or to finalize other deferred operations.

         /// This function is only required for optimization purposes and does not have to be defined.

         /// Therefore, unlike TermForThread, this is not expected to be called in all scenarios by Wwise.

         /// It is also recommended to be called by game engine integrations in any worker threads that run Wwise jobs.

         /// Refer to \ref eventmgrthread_jobmgr_best_practices for more information.

         /// \sa

         /// - AkMemTrimForThread

         AK_EXTERNAPIFUNC( void, TrimForThread )();

         //@}

         ////////////////////////////////////////////////////////////////////////

         /// @name Memory Allocation

         //@{

 #ifdef AK_MEMDEBUG

         /// Allocate memory: debug version.

         /// \return A pointer to the start of the allocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, dMalloc )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             size_t      in_uSize,               ///< Number of bytes to allocate

             const char *in_pszFile,             ///< Debug file name

             AkUInt32    in_uLine                ///< Debug line number

             );

 #endif // AK_MEMDEBUG

         /// Allocate memory.

         /// \return A pointer to the start of the allocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, Malloc )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             size_t      in_uSize                ///< Number of bytes to allocate

             );

 #ifdef AK_MEMDEBUG

         /// Reallocate memory: debug version.

         /// \return A pointer to the start of the reallocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void*, dRealloc )(

             AkMemPoolId in_poolId,

             void        *in_pAlloc,

             size_t      in_uSize,

             const char  *in_pszFile,

             AkUInt32    in_uLine

             );

 #endif // AK_MEMDEBUG

         /// Reallocate memory.

         /// \return A pointer to the start of the reallocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, Realloc )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             void *      in_pAlloc,              ///< Pointer to the start of the allocated memory

             size_t      in_uSize                ///< Number of bytes to allocate

             );

 #ifdef AK_MEMDEBUG

         /// Reallocate memory: debug version.

         /// \return A pointer to the start of the reallocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void*, dReallocAligned )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             void        *in_pAlloc,             ///< Pointer to the start of the allocated memory

             size_t      in_uSize,               ///< Number of bytes to allocate

             AkUInt32    in_uAlignment,          ///< Alignment (in bytes)

             const char  *in_pszFile,            ///< Debug file name

             AkUInt32    in_uLine                ///< Debug line number

             );

 #endif // AK_MEMDEBUG

         /// Reallocate memory.

         /// \return A pointer to the start of the reallocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, ReallocAligned )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             void *      in_pAlloc,              ///< Pointer to the start of the allocated memory

             size_t      in_uSize,               ///< Number of bytes to allocate

             AkUInt32    in_uAlignment           ///< Alignment (in bytes)

             );

         /// Free memory allocated with the memory manager.

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void, Free )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             void *      in_pMemAddress          ///< Pointer to the start of memory

             );

 #ifdef AK_MEMDEBUG

         /// Allocate memory with a specific alignment. debug version.

         /// \return A pointer to the start of the allocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, dMalign )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             size_t      in_uSize,               ///< Number of bytes to allocate

             AkUInt32    in_uAlignment,          ///< Alignment (in bytes)

             const char*  in_pszFile,            ///< Debug file name

             AkUInt32    in_uLine                ///< Debug line number

             );

 #endif // AK_MEMDEBUG

         /// Allocate memory with a specific alignment.

         /// \return A pointer to the start of the allocated memory (NULL if the allocation could not be completed)

         /// \sa

         /// - \ref memorymanager

         AK_EXTERNAPIFUNC( void *, Malign )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             size_t      in_uSize,               ///< Number of bytes to allocate

             AkUInt32    in_uAlignment           ///< Alignment (in bytes)

             );

         //@}

         ////////////////////////////////////////////////////////////////////////

         /// @name Memory Profiling

         //@{

         /// Get statistics for a given memory category.

         /// \note Be aware of the potentially incoherent nature of reporting such information during concurrent modification by multiple threads.

         AK_EXTERNAPIFUNC( void, GetCategoryStats )(

             AkMemPoolId in_poolId,              ///< ID of the memory category (AkMemID)

             CategoryStats& out_poolStats        ///< Returned statistics.

             );

         /// Get statistics for overall memory manager usage.

         /// \note Be aware of the potentially incoherent nature of reporting such information during concurrent modification by multiple threads.

         AK_EXTERNAPIFUNC( void, GetGlobalStats )(

             GlobalStats& out_stats              ///< Returned statistics.

             );

         /// Called to start profiling memory usage for one thread (the calling thread).

         /// \note Not implementing this will result in the Soundbank tab of the Wwise Profiler to show 0 bytes for memory usage.

         AK_EXTERNAPIFUNC( void, StartProfileThreadUsage )(

             );

         /// Called to stop profiling memory usage for the current thread.

         /// \return The amount of memory allocated by this thread since StartProfileThreadUsage was called.

         /// \note Not implementing this will result in the Soundbank tab of the Wwise Profiler to show 0 bytes for memory usage.

         AK_EXTERNAPIFUNC( AkUInt64, StopProfileThreadUsage )(

             );

         /// Dumps the currently tracked allocations to a file

         /// \note AkMemSettings::uMemoryDebugLevel must be enabled and the build must define AK_MEMDEBUG for this to work

         AK_EXTERNAPIFUNC( void, DumpToFile )(

             const AkOSChar* pszFilename         ///< Filename.

             );

         //@}

     }

 }

 #endif // _AKMEMORYMGR_H_

AkMemID_Processing

@ AkMemID_Processing

Anything tied to instancing and processing of the DSP graph.

Definition: AkMemoryMgr.h:52

AK::MemoryMgr::DumpToFile

AKSOUNDENGINE_API void DumpToFile(const AkOSChar *pszFilename)

AkMemID_SpatialAudioPaths

@ AkMemID_SpatialAudioPaths

Spatial audio paths data.

Definition: AkMemoryMgr.h:58

AkMemID_MonitorQueue

@ AkMemID_MonitorQueue

Monitor Queue.

Definition: AkMemoryMgr.h:60

AkMemID_FilePackage

@ AkMemID_FilePackage

File packager.

Definition: AkMemoryMgr.h:62

AK::MemoryMgr::TermForThread

AKSOUNDENGINE_API void TermForThread()

AK::MemoryMgr::dRealloc

AKSOUNDENGINE_API void * dRealloc(AkMemPoolId in_poolId, void *in_pAlloc, size_t in_uSize, const char *in_pszFile, AkUInt32 in_uLine)

AK::MemoryMgr::CategoryStats::uPeakUsed

AkUInt64 uPeakUsed

Peak used memory (in bytes)

Definition: AkMemoryMgr.h:95

AK::MemoryMgr::GlobalStats::uDeviceUsed

AkUInt64 uDeviceUsed

Total device memory used including all categories (in bytes)

Definition: AkMemoryMgr.h:109

Audiokinetic namespace.

Definition: AkWwiseSDKVersion.cs:31

AkMemID_StreamingIO

@ AkMemID_StreamingIO

Streaming Manager I/O memory.

Definition: AkMemoryMgr.h:55

AK::MemoryMgr::dMalloc

AKSOUNDENGINE_API void * dMalloc(AkMemPoolId in_poolId, size_t in_uSize, const char *in_pszFile, AkUInt32 in_uLine)

AkMemID_Media

@ AkMemID_Media

Media from the Wwise project.

Definition: AkMemoryMgr.h:50

AkMemID_Integration

@ AkMemID_Integration

Game engine integration allocations.

Definition: AkMemoryMgr.h:64

AkMemID_Object

@ AkMemID_Object

Generic placeholder for allocations tied to the Wwise project.

Definition: AkMemoryMgr.h:47

AK::MemoryMgr::dMalign

AKSOUNDENGINE_API void * dMalign(AkMemPoolId in_poolId, size_t in_uSize, AkUInt32 in_uAlignment, const char *in_pszFile, AkUInt32 in_uLine)

AK::MemoryMgr::Free

AKSOUNDENGINE_API void Free(AkMemPoolId in_poolId, void *in_pMemAddress)

AK_EXTERNAPIFUNC

#define AK_EXTERNAPIFUNC(_type, _name)

Definition: AkSoundEngineExport.h:81

AK::MemoryMgr::Malloc

AKSOUNDENGINE_API void * Malloc(AkMemPoolId in_poolId, size_t in_uSize)

AK::MemoryMgr::TrimForThread

AKSOUNDENGINE_API void TrimForThread()

AkMemPoolId

AkInt32 AkMemPoolId

Memory pool ID.

Definition: AkTypes.h:130

AkMemID_Profiler

@ AkMemID_Profiler

Profiler.

Definition: AkMemoryMgr.h:61

AkMemID

Memory category IDs.

Definition: AkMemoryMgr.h:46

AkOSChar

char AkOSChar

Generic character string.

Definition: AkTypes.h:60

AK::MemoryMgr::CategoryStats::uAllocs

AkUInt32 uAllocs

Number of allocation calls since initialization.

Definition: AkMemoryMgr.h:96

AK::MemoryMgr::Term

AKSOUNDENGINE_API void Term()

AK::MemoryMgr::GetGlobalStats

AKSOUNDENGINE_API void GetGlobalStats(GlobalStats &out_stats)

AK::MemoryMgr::InitForThread

AKSOUNDENGINE_API void InitForThread()

AkMemID_SpatialAudioGeometry

@ AkMemID_SpatialAudioGeometry

Spatial audio geometry data.

Definition: AkMemoryMgr.h:57

AK::MemoryMgr::GlobalStats::uReserved

AkUInt64 uReserved

Total reserved memory. (Used and unused). Will return 0 if the reserved memory is not traceable.

Definition: AkMemoryMgr.h:110

AK::MemoryMgr::GlobalStats::uMax

AkUInt64 uMax

Maximum total allocation size, specified in the initialization settings through uMemAllocationSizeLim...

Definition: AkMemoryMgr.h:111

AK::MemoryMgr::dReallocAligned

AKSOUNDENGINE_API void * dReallocAligned(AkMemPoolId in_poolId, void *in_pAlloc, size_t in_uSize, AkUInt32 in_uAlignment, const char *in_pszFile, AkUInt32 in_uLine)

AkMemID_JobMgr

@ AkMemID_JobMgr

Allocations for Sound Engine jobs and job dependencies.

Definition: AkMemoryMgr.h:65

AK::MemoryMgr::Malign

AKSOUNDENGINE_API void * Malign(AkMemPoolId in_poolId, size_t in_uSize, AkUInt32 in_uAlignment)

AkMemSettings

Definition: AkModule.h:141

AkMemID_SoundEngine

@ AkMemID_SoundEngine

Base sound engine allocations (managers, etc).

Definition: AkMemoryMgr.h:63