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 /** POSIX wrapper for THREADX                                             */
16 /**                                                                       */
17 /**                                                                       */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 /* Include necessary system files.  */
23 
24 #include "tx_api.h"    /* Threadx API */
25 #include "pthread.h"  /* Posix API */
26 #include "px_int.h"    /* Posix helper functions */
27 
28 
29 /**************************************************************************/
30 /*                                                                        */
31 /*  FUNCTION                                               RELEASE        */
32 /*                                                                        */
33 /*    pthread_attr_setstack                               PORTABLE C      */
34 /*                                                           6.1.7        */
35 /*  AUTHOR                                                                */
36 /*                                                                        */
37 /*    William E. Lamie, Microsoft Corporation                             */
38 /*                                                                        */
39 /*  DESCRIPTION                                                           */
40 /*                                                                        */
41 /*     This function sets the thread creation stack attributes stackaddr  */
42 /*     and stacksize in the attr object.                                  */
43 /*     The stack attributes specify the area of storage to be used for the*/
44 /*     created thread�s stack. The base  (lowest addressable byte) of  */
45 /*     the storage shall be stackaddr , and the size of the storage shall */
46 /*     be stacksize bytes.                                                */
47 /*                                                                        */
48 /*  INPUT                                                                 */
49 /*                                                                        */
50 /*    attr                           Address of the thread attributes     */
51 /*    stackaddr                      Address of stack                     */
52 /*    stacksize                      Holds the stack size                 */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*     0                             if successful                        */
57 /*     Value                         in case of any error                 */
58 /*                                                                        */
59 /*  CALLS                                                                 */
60 /*                                                                        */
61 /*    None                                                                */
62 /*                                                                        */
63 /*  CALLED BY                                                             */
64 /*                                                                        */
65 /*    Application Code                                                    */
66 /*                                                                        */
67 /*  RELEASE HISTORY                                                       */
68 /*                                                                        */
69 /*    DATE              NAME                      DESCRIPTION             */
70 /*                                                                        */
71 /*  06-02-2021     William E. Lamie         Initial Version 6.1.7         */
72 /*                                                                        */
73 /**************************************************************************/
pthread_attr_setstack(pthread_attr_t * attr,void * stackaddr,size_t stacksize)74 INT pthread_attr_setstack( pthread_attr_t *attr,void *stackaddr,
75                          size_t stacksize)
76 {
77     /* First check the attribute object is already destroyed? */
78     if (attr->inuse == TX_FALSE)
79     {
80         posix_errno = EINVAL;
81 	    posix_set_pthread_errno(EINVAL);
82         return(EINVAL);
83     }
84     else
85     {
86         attr->stack_address = stackaddr; /* This has got no effect */
87         attr->stack_size = stacksize;
88         return(OK);
89     }
90 }
91