source/dsfm/src/sbm.c File Reference

Section Buffer Manager (for use by Section Filter Manager and client) Provides mechanism to allocate and release buffers for section data without cost of using standard malloc and free. More...

#include <string.h>
#include "stb_debug.h"
#include "sbm.h"

Data Structures
struct	s_SbmInstance
Defines
#define	INVALID_OFFSET   0xFFFFFFFF
Typedefs
typedef struct s_SbmInstance	S_SbmInstance
Functions
U8BIT *	SBM_AllocateBuffer (H_SbmInstance sbm, U8BIT size1)
	Allocate buffer for a DVB section.
void	SBM_ReleaseBuffer (H_SbmInstance sbm, U8BIT *buffer)
	Release DVB section buffer allocated with SBM_AllocateBuffer.
H_SbmInstance	SBM_CreateInstance (S_SbmSetup *pSetup)
	Create Section Buffer Manager instance, using setup structure.
void	SBM_DestroyInstance (H_SbmInstance sbm, void **pBufMtx)
	Destroy Section Filter Manager instance, and return mutexes so that they may be destroyed by client.

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Detailed Description

Section Buffer Manager (for use by Section Filter Manager and client) Provides mechanism to allocate and release buffers for section data without cost of using standard malloc and free.

Date:

30th October 2013

Author:

Adam Sturtridge

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Function Documentation

U8BIT* SBM_AllocateBuffer	(	H_SbmInstance	sbm,
		U8BIT	size1
	)

Allocate buffer for a DVB section.

Parameters:

H_SbmInstance	sbm SBM instance handle.
U8BIT	size1 First 'size' byte in DVB section data That is 'section_data_ptr[1]' or section size (less 3) in 256 byte units.

Returns:

U8BIT* pointer to section buffer, NULL is failure.

H_SbmInstance SBM_CreateInstance

(

S_SbmSetup *

pSetup

)

Create Section Buffer Manager instance, using setup structure.

Parameters:

S_SbmSetup

setup setup parameters

Returns:

SBM instance. NULL is failure.

void SBM_DestroyInstance	(	H_SbmInstance	sbm,
		void **	pBufMtx
	)

Destroy Section Filter Manager instance, and return mutexes so that they may be destroyed by client.

Parameters:

H_SbmInstance	sbm SBM instance handle.
void**	pBufMtx Pointer to mtx_sem provided in setup

Returns:

void

void SBM_ReleaseBuffer	(	H_SbmInstance	sbm,
		U8BIT *	buffer
	)

Release DVB section buffer allocated with SBM_AllocateBuffer.

Parameters:

H_SbmInstance	sbm SBM instance handle.
U8BIT*	buffer Pointer to DVB section data buffer

Returns:

void