pa_allocation.c File Reference

Allocation Group implementation. More...

#include "pa_allocation.h"
#include "pa_util.h"

Data Structures
struct	PaUtilAllocationGroupLink

Macros
#define	PA_INITIAL_LINK_COUNT_   16

Functions
PaUtilAllocationGroup *	PaUtil_CreateAllocationGroup (void)
void	PaUtil_DestroyAllocationGroup (PaUtilAllocationGroup *group)
void *	PaUtil_GroupAllocateZeroInitializedMemory (PaUtilAllocationGroup *group, long size)
void	PaUtil_GroupFreeMemory (PaUtilAllocationGroup *group, void *buffer)
void	PaUtil_FreeAllAllocations (PaUtilAllocationGroup *group)

Detailed Description

Allocation Group implementation.

Macro Definition Documentation

#define PA_INITIAL_LINK_COUNT_   16

Referenced by PaUtil_CreateAllocationGroup().

Function Documentation

PaUtilAllocationGroup* PaUtil_CreateAllocationGroup

(

void

)

Create an allocation group.

References PaUtilAllocationGroup::allocations, PaUtilAllocationGroup::linkBlocks, PaUtilAllocationGroup::linkCount, PA_INITIAL_LINK_COUNT_, PaUtil_AllocateZeroInitializedMemory(), PaUtil_FreeMemory(), and PaUtilAllocationGroup::spareLinks.

Referenced by PaAlsa_Initialize(), PaAsiHpi_Initialize(), PaAsio_Initialize(), PaAudioIO_Initialize(), PaJack_Initialize(), PaMacCore_Initialize(), PaOSS_Initialize(), PaPulseAudio_Initialize(), PaSkeleton_Initialize(), PaWasapi_Initialize(), PaWinDs_Initialize(), PaWinMme_Initialize(), and PaWinWdm_Initialize().

void PaUtil_DestroyAllocationGroup

(

PaUtilAllocationGroup *

group

)

Destroy an allocation group, but not the memory allocated through the group.

References PaUtilAllocationGroupLink::buffer, PaUtilAllocationGroup::linkBlocks, PaUtilAllocationGroupLink::next, and PaUtil_FreeMemory().

Referenced by PaAlsa_Initialize(), PaAsio_Initialize(), PaAudioIO_Initialize(), PaJack_Initialize(), PaMacCore_Initialize(), PaOSS_Initialize(), PaPulseAudio_Free(), PaSkeleton_Initialize(), and PaWinMme_Initialize().

void PaUtil_FreeAllAllocations

(

PaUtilAllocationGroup *

group

)

Free all blocks of memory which have been allocated through the allocation group. This function doesn't destroy the group itself.

References PaUtilAllocationGroup::allocations, PaUtilAllocationGroupLink::buffer, PaUtilAllocationGroupLink::next, PaUtil_FreeMemory(), and PaUtilAllocationGroup::spareLinks.

Referenced by PaAlsa_Initialize(), PaAsio_Initialize(), PaAudioIO_Initialize(), PaJack_Initialize(), PaMacCore_Initialize(), PaOSS_Initialize(), PaPulseAudio_Free(), PaSkeleton_Initialize(), and PaWinMme_Initialize().

void* PaUtil_GroupAllocateZeroInitializedMemory	(	PaUtilAllocationGroup *	group,
		long	size
	)

Allocate a block of memory through the specified allocation group.

The allocated block is zero-initialized.

References PaUtilAllocationGroup::allocations, PaUtilAllocationGroupLink::buffer, PaUtilAllocationGroup::linkBlocks, PaUtilAllocationGroup::linkCount, PaUtilAllocationGroupLink::next, PaUtil_AllocateZeroInitializedMemory(), and PaUtilAllocationGroup::spareLinks.

Referenced by _PaPulseAudio_AddAudioDevice(), PaAsio_Initialize(), PaAudioIO_Initialize(), PaMacCore_Initialize(), PaPulseAudio_Initialize(), PaSkeleton_Initialize(), PaUtil_InitializeDeviceInfo(), PaWinDs_Initialize(), and PaWinMme_Initialize().

void PaUtil_GroupFreeMemory	(	PaUtilAllocationGroup *	group,
		void *	buffer
	)

Free a block of memory that was allocated through the specified allocation group. Calling this function is a relatively time consuming operation. Under normal circumstances clients should call PaUtil_FreeAllAllocations to free all allocated blocks simultaneously.

See Also

PaUtil_FreeAllAllocations

References PaUtilAllocationGroup::allocations, PaUtilAllocationGroupLink::buffer, PaUtilAllocationGroupLink::next, PaUtil_FreeMemory(), and PaUtilAllocationGroup::spareLinks.