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https://github.com/cesanta/mongoose.git
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77 lines
3.5 KiB
C
77 lines
3.5 KiB
C
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/*
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* FreeRTOS+TCP V2.3.2
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://aws.amazon.com/freertos
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* http://www.FreeRTOS.org
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*/
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#ifndef NETWORK_BUFFER_MANAGEMENT_H
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#define NETWORK_BUFFER_MANAGEMENT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* NOTE PUBLIC API FUNCTIONS. */
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BaseType_t xNetworkBuffersInitialise( void );
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NetworkBufferDescriptor_t * pxGetNetworkBufferWithDescriptor( size_t xRequestedSizeBytes,
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TickType_t xBlockTimeTicks );
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/* The definition of the below function is only available if BufferAllocation_2.c has been linked into the source. */
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NetworkBufferDescriptor_t * pxNetworkBufferGetFromISR( size_t xRequestedSizeBytes );
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void vReleaseNetworkBufferAndDescriptor( NetworkBufferDescriptor_t * const pxNetworkBuffer );
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/* The definition of the below function is only available if BufferAllocation_2.c has been linked into the source. */
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BaseType_t vNetworkBufferReleaseFromISR( NetworkBufferDescriptor_t * const pxNetworkBuffer );
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uint8_t * pucGetNetworkBuffer( size_t * pxRequestedSizeBytes );
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void vReleaseNetworkBuffer( uint8_t * pucEthernetBuffer );
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/* Get the current number of free network buffers. */
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UBaseType_t uxGetNumberOfFreeNetworkBuffers( void );
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/* Get the lowest number of free network buffers. */
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UBaseType_t uxGetMinimumFreeNetworkBuffers( void );
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/* Copy a network buffer into a bigger buffer. */
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NetworkBufferDescriptor_t * pxDuplicateNetworkBufferWithDescriptor( const NetworkBufferDescriptor_t * const pxNetworkBuffer,
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size_t uxNewLength );
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/* Increase the size of a Network Buffer.
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* In case BufferAllocation_2.c is used, the new space must be allocated. */
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NetworkBufferDescriptor_t * pxResizeNetworkBufferWithDescriptor( NetworkBufferDescriptor_t * pxNetworkBuffer,
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size_t xNewSizeBytes );
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#if ipconfigTCP_IP_SANITY
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/*
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* Check if an address is a valid pointer to a network descriptor
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* by looking it up in the array of network descriptors
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*/
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UBaseType_t bIsValidNetworkDescriptor( const NetworkBufferDescriptor_t * pxDesc );
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BaseType_t prvIsFreeBuffer( const NetworkBufferDescriptor_t * pxDescr );
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#endif
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* NETWORK_BUFFER_MANAGEMENT_H */
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