CARPLAY版本整理

MXC_A27-PCB4.5-270T/FreeRTOS-Plus/FreeRTOS-Plus-TCP/include/NetworkBufferManagement.h

@@ -0,0 +1,76 @@
+/*
+ * FreeRTOS+TCP V2.3.2 LTS Patch 1
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://aws.amazon.com/freertos
+ * http://www.FreeRTOS.org
+ */
+
+#ifndef NETWORK_BUFFER_MANAGEMENT_H
+    #define NETWORK_BUFFER_MANAGEMENT_H
+
+    #ifdef __cplusplus
+        extern "C" {
+    #endif
+
+/* NOTE PUBLIC API FUNCTIONS. */
+    BaseType_t xNetworkBuffersInitialise( void );
+    NetworkBufferDescriptor_t * pxGetNetworkBufferWithDescriptor( size_t xRequestedSizeBytes,
+                                                                  TickType_t xBlockTimeTicks );
+
+/* The definition of the below function is only available if BufferAllocation_2.c has been linked into the source. */
+    NetworkBufferDescriptor_t * pxNetworkBufferGetFromISR( size_t xRequestedSizeBytes );
+    void vReleaseNetworkBufferAndDescriptor( NetworkBufferDescriptor_t * const pxNetworkBuffer );
+
+/* The definition of the below function is only available if BufferAllocation_2.c has been linked into the source. */
+    BaseType_t vNetworkBufferReleaseFromISR( NetworkBufferDescriptor_t * const pxNetworkBuffer );
+    uint8_t * pucGetNetworkBuffer( size_t * pxRequestedSizeBytes );
+    void vReleaseNetworkBuffer( uint8_t * pucEthernetBuffer );
+
+/* Get the current number of free network buffers. */
+    UBaseType_t uxGetNumberOfFreeNetworkBuffers( void );
+
+/* Get the lowest number of free network buffers. */
+    UBaseType_t uxGetMinimumFreeNetworkBuffers( void );
+
+/* Copy a network buffer into a bigger buffer. */
+    NetworkBufferDescriptor_t * pxDuplicateNetworkBufferWithDescriptor( const NetworkBufferDescriptor_t * const pxNetworkBuffer,
+                                                                        size_t uxNewLength );
+
+/* Increase the size of a Network Buffer.
+ * In case BufferAllocation_2.c is used, the new space must be allocated. */
+    NetworkBufferDescriptor_t * pxResizeNetworkBufferWithDescriptor( NetworkBufferDescriptor_t * pxNetworkBuffer,
+                                                                     size_t xNewSizeBytes );
+
+    #if ipconfigTCP_IP_SANITY
+
+/*
+ * Check if an address is a valid pointer to a network descriptor
+ * by looking it up in the array of network descriptors
+ */
+        UBaseType_t bIsValidNetworkDescriptor( const NetworkBufferDescriptor_t * pxDesc );
+        BaseType_t prvIsFreeBuffer( const NetworkBufferDescriptor_t * pxDescr );
+    #endif
+
+    #ifdef __cplusplus
+        } /* extern "C" */
+    #endif
+
+#endif /* NETWORK_BUFFER_MANAGEMENT_H */