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26 #ifndef NETWORK_BUFFER_MANAGEMENT_H
27 #define NETWORK_BUFFER_MANAGEMENT_H
33 /* NOTE PUBLIC API FUNCTIONS. */
34 BaseType_t xNetworkBuffersInitialise( void );
35 NetworkBufferDescriptor_t *pxGetNetworkBufferWithDescriptor( size_t xRequestedSizeBytes, TickType_t xBlockTimeTicks );
36 NetworkBufferDescriptor_t *pxNetworkBufferGetFromISR( size_t xRequestedSizeBytes );
37 void vReleaseNetworkBufferAndDescriptor( NetworkBufferDescriptor_t * const pxNetworkBuffer );
38 BaseType_t vNetworkBufferReleaseFromISR( NetworkBufferDescriptor_t * const pxNetworkBuffer );
39 uint8_t *pucGetNetworkBuffer( size_t *pxRequestedSizeBytes );
40 void vReleaseNetworkBuffer( uint8_t *pucEthernetBuffer );
42 /* Get the current number of free network buffers. */
43 UBaseType_t uxGetNumberOfFreeNetworkBuffers( void );
45 /* Get the lowest number of free network buffers. */
46 UBaseType_t uxGetMinimumFreeNetworkBuffers( void );
48 /* Copy a network buffer into a bigger buffer. */
49 NetworkBufferDescriptor_t *pxDuplicateNetworkBufferWithDescriptor( NetworkBufferDescriptor_t * const pxNetworkBuffer,
52 /* Increase the size of a Network Buffer.
53 In case BufferAllocation_2.c is used, the new space must be allocated. */
54 NetworkBufferDescriptor_t *pxResizeNetworkBufferWithDescriptor( NetworkBufferDescriptor_t * pxNetworkBuffer,
55 size_t xNewSizeBytes );
57 #if ipconfigTCP_IP_SANITY
59 * Check if an address is a valid pointer to a network descriptor
60 * by looking it up in the array of network descriptors
62 UBaseType_t bIsValidNetworkDescriptor (const NetworkBufferDescriptor_t * pxDesc);
63 BaseType_t prvIsFreeBuffer( const NetworkBufferDescriptor_t *pxDescr );
70 #endif /* NETWORK_BUFFER_MANAGEMENT_H */