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 /**   User Datagram Protocol (UDP)                                        */
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_udp.h"
30 
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _nxe_udp_socket_receive_notify                      PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Yuxin Zhou, Microsoft Corporation                                   */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function checks for errors in the UDP socket receive notify    */
45 /*    function call.                                                      */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    socket_ptr                            Pointer to UDP socket         */
50 /*    udp_receive_notify                    Routine to call when one or   */
51 /*                                            more received packets are   */
52 /*                                            available for the socket    */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*    status                                Completion status             */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*    _nx_udp_socket_receive_notify         Actual socket receive notify  */
61 /*                                            function                    */
62 /*                                                                        */
63 /*  CALLED BY                                                             */
64 /*                                                                        */
65 /*    Application Code                                                    */
66 /*                                                                        */
67 /*  RELEASE HISTORY                                                       */
68 /*                                                                        */
69 /*    DATE              NAME                      DESCRIPTION             */
70 /*                                                                        */
71 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
72 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
73 /*                                            resulting in version 6.1    */
74 /*                                                                        */
75 /**************************************************************************/
_nxe_udp_socket_receive_notify(NX_UDP_SOCKET * socket_ptr,VOID (* udp_receive_notify)(NX_UDP_SOCKET * socket_ptr))76 UINT  _nxe_udp_socket_receive_notify(NX_UDP_SOCKET *socket_ptr,
77                                      VOID (*udp_receive_notify)(NX_UDP_SOCKET *socket_ptr))
78 {
79 
80 UINT status;
81 
82     /* Check for invalid input pointers.  */
83     if ((socket_ptr == NX_NULL) || (socket_ptr -> nx_udp_socket_id != NX_UDP_ID))
84     {
85         return(NX_PTR_ERROR);
86     }
87 
88     /* Call actual socket receive notify function.  */
89     status =  _nx_udp_socket_receive_notify(socket_ptr, udp_receive_notify);
90 
91     /* Return to caller.  */
92     return(status);
93 }
94 
95