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 /** ThreadX Component                                                     */
17 /**                                                                       */
18 /**   Block Memory                                                        */
19 /**                                                                       */
20 /**************************************************************************/
21 /**************************************************************************/
22 
23 #define TX_SOURCE_CODE
24 
25 
26 /* Include necessary system files.  */
27 
28 #include "tx_api.h"
29 #include "tx_trace.h"
30 #include "tx_block_pool.h"
31 
32 
33 /**************************************************************************/
34 /*                                                                        */
35 /*  FUNCTION                                               RELEASE        */
36 /*                                                                        */
37 /*    _tx_block_pool_info_get                             PORTABLE C      */
38 /*                                                           6.1          */
39 /*  AUTHOR                                                                */
40 /*                                                                        */
41 /*    William E. Lamie, Microsoft Corporation                             */
42 /*                                                                        */
43 /*  DESCRIPTION                                                           */
44 /*                                                                        */
45 /*    This function retrieves information from the specified block pool.  */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    pool_ptr                          Pointer to block pool control blk */
50 /*    name                              Destination for the pool name     */
51 /*    available_blocks                  Number of free blocks in pool     */
52 /*    total_blocks                      Total number of blocks in pool    */
53 /*    first_suspended                   Destination for pointer of first  */
54 /*                                        thread suspended on block pool  */
55 /*    suspended_count                   Destination for suspended count   */
56 /*    next_pool                         Destination for pointer to next   */
57 /*                                        block pool on the created list  */
58 /*                                                                        */
59 /*  OUTPUT                                                                */
60 /*                                                                        */
61 /*    status                            Completion status                 */
62 /*                                                                        */
63 /*  CALLS                                                                 */
64 /*                                                                        */
65 /*    None                                                                */
66 /*                                                                        */
67 /*  CALLED BY                                                             */
68 /*                                                                        */
69 /*    Application Code                                                    */
70 /*                                                                        */
71 /*  RELEASE HISTORY                                                       */
72 /*                                                                        */
73 /*    DATE              NAME                      DESCRIPTION             */
74 /*                                                                        */
75 /*  05-19-2020     William E. Lamie         Initial Version 6.0           */
76 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
77 /*                                            resulting in version 6.1    */
78 /*                                                                        */
79 /**************************************************************************/
_tx_block_pool_info_get(TX_BLOCK_POOL * pool_ptr,CHAR ** name,ULONG * available_blocks,ULONG * total_blocks,TX_THREAD ** first_suspended,ULONG * suspended_count,TX_BLOCK_POOL ** next_pool)80 UINT  _tx_block_pool_info_get(TX_BLOCK_POOL *pool_ptr, CHAR **name, ULONG *available_blocks,
81                     ULONG *total_blocks, TX_THREAD **first_suspended,
82                     ULONG *suspended_count, TX_BLOCK_POOL **next_pool)
83 {
84 
85 TX_INTERRUPT_SAVE_AREA
86 
87 
88     /* Disable interrupts.  */
89     TX_DISABLE
90 
91     /* If trace is enabled, insert this event into the trace buffer.  */
92     TX_TRACE_IN_LINE_INSERT(TX_TRACE_BLOCK_POOL_INFO_GET, pool_ptr, 0, 0, 0, TX_TRACE_BLOCK_POOL_EVENTS)
93 
94     /* Log this kernel call.  */
95     TX_EL_BLOCK_POOL_INFO_GET_INSERT
96 
97     /* Retrieve all the pertinent information and return it in the supplied
98        destinations.  */
99 
100     /* Retrieve the name of the block pool.  */
101     if (name != TX_NULL)
102     {
103 
104         *name =  pool_ptr -> tx_block_pool_name;
105     }
106 
107     /* Retrieve the number of available blocks in the block pool.  */
108     if (available_blocks != TX_NULL)
109     {
110 
111         *available_blocks =  (ULONG) pool_ptr -> tx_block_pool_available;
112     }
113 
114     /* Retrieve the total number of blocks in the block pool.  */
115     if (total_blocks != TX_NULL)
116     {
117 
118         *total_blocks =  (ULONG) pool_ptr -> tx_block_pool_total;
119     }
120 
121     /* Retrieve the first thread suspended on this block pool.  */
122     if (first_suspended != TX_NULL)
123     {
124 
125         *first_suspended =  pool_ptr -> tx_block_pool_suspension_list;
126     }
127 
128     /* Retrieve the number of threads suspended on this block pool.  */
129     if (suspended_count != TX_NULL)
130     {
131 
132         *suspended_count =  (ULONG) pool_ptr -> tx_block_pool_suspended_count;
133     }
134 
135     /* Retrieve the pointer to the next block pool created.  */
136     if (next_pool != TX_NULL)
137     {
138 
139         *next_pool =  pool_ptr -> tx_block_pool_created_next;
140     }
141 
142     /* Restore interrupts.  */
143     TX_RESTORE
144 
145     /* Return completion status.  */
146     return(TX_SUCCESS);
147 }
148 
149