sbm.h 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 "techtype.h"
#include "stdfuncs.h"

Go to the source code of this file.

Classes
struct	S_SbmSetup

Typedefs
typedef struct s_SbmInstance *	H_SbmInstance

Functions
H_SbmInstance	SBM_CreateInstance (S_SbmSetup *pSetup)
	Create Section Buffer Manager instance, using setup structure. More...
void	SBM_DestroyInstance (H_SbmInstance sbm, void **pBufMtx)
	Destroy Section Filter Manager instance, and return mutexes so that they may be destroyed by client. More...
U8BIT *	SBM_AllocateBuffer (H_SbmInstance sbm, U8BIT size1)
	Allocate buffer for a DVB section. More...
void	SBM_ReleaseBuffer (H_SbmInstance sbm, U8BIT *buffer)
	Release DVB section buffer allocated with SBM_AllocateBuffer. More...

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

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 value to be assigned to buffer[1]. Or section size (less 3) in 256 byte units.

Returns

U8BIT* pointer to section buffer, NULL is failure.

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