1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** NetX Component                                                        */
17 /**                                                                       */
18 /**   Packet Pool Management (Packet)                                     */
19 /**                                                                       */
20 /**************************************************************************/
21 /**************************************************************************/
22 
23 #define NX_SOURCE_CODE
24 
25 
26 /* Include necessary system files.  */
27 
28 #include "nx_api.h"
29 #include "nx_packet.h"
30 
31 /* Bring in externs for caller checking code.  */
32 
33 NX_CALLER_CHECKING_EXTERNS
34 
35 
36 /**************************************************************************/
37 /*                                                                        */
38 /*  FUNCTION                                               RELEASE        */
39 /*                                                                        */
40 /*    _nxe_packet_pool_delete                             PORTABLE C      */
41 /*                                                           6.1          */
42 /*  AUTHOR                                                                */
43 /*                                                                        */
44 /*    Yuxin Zhou, Microsoft Corporation                                   */
45 /*                                                                        */
46 /*  DESCRIPTION                                                           */
47 /*                                                                        */
48 /*    This function checks for errors in the packet pool delete           */
49 /*    function call.                                                      */
50 /*                                                                        */
51 /*  INPUT                                                                 */
52 /*                                                                        */
53 /*    pool_ptr                              Packet Pool control block     */
54 /*                                                                        */
55 /*  OUTPUT                                                                */
56 /*                                                                        */
57 /*    status                                Completion status             */
58 /*                                                                        */
59 /*  CALLS                                                                 */
60 /*                                                                        */
61 /*    _nx_packet_pool_delete                Actual packet pool delete     */
62 /*                                            function                    */
63 /*                                                                        */
64 /*  CALLED BY                                                             */
65 /*                                                                        */
66 /*    Application Code                                                    */
67 /*                                                                        */
68 /*  RELEASE HISTORY                                                       */
69 /*                                                                        */
70 /*    DATE              NAME                      DESCRIPTION             */
71 /*                                                                        */
72 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
73 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
74 /*                                            resulting in version 6.1    */
75 /*                                                                        */
76 /**************************************************************************/
_nxe_packet_pool_delete(NX_PACKET_POOL * pool_ptr)77 UINT  _nxe_packet_pool_delete(NX_PACKET_POOL *pool_ptr)
78 {
79 
80 UINT status;
81 
82 
83     /* Check for invalid input pointers.  */
84     if ((pool_ptr == NX_NULL) || (pool_ptr -> nx_packet_pool_id != NX_PACKET_POOL_ID))
85     {
86         return(NX_PTR_ERROR);
87     }
88 
89     /* Check for appropriate caller.  */
90     NX_THREADS_ONLY_CALLER_CHECKING
91 
92     /* Call actual packet pool delete function.  */
93     status =  _nx_packet_pool_delete(pool_ptr);
94 
95     /* Return completion status.  */
96     return(status);
97 }
98 
99