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56836fe9 | 1 | /** @file\r |
2 | Data Hub status code worker in DXE.\r | |
3 | \r | |
161c26a7 | 4 | Copyright (c) 2006, Intel Corporation \r |
5 | All rights reserved. This program and the accompanying materials \r | |
6 | are licensed and made available under the terms and conditions of the BSD License \r | |
7 | which accompanies this distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
56836fe9 | 12 | \r |
13 | Module Name: DataHubStatusCodeWorker.c\r | |
14 | \r | |
15 | **/\r | |
16 | #include "DxeStatusCode.h"\r | |
17 | \r | |
18 | //\r | |
19 | // Initialize FIFO to cache records.\r | |
20 | //\r | |
21 | EFI_LOCK mFifoLock = EFI_INITIALIZE_LOCK_VARIABLE (EFI_TPL_HIGH_LEVEL);\r | |
22 | LIST_ENTRY mRecordsFifo = INITIALIZE_LIST_HEAD_VARIABLE (mRecordsFifo);\r | |
23 | UINTN mNumberOfRecords = 0;\r | |
24 | \r | |
25 | EFI_EVENT mLogDataHubEvent;\r | |
26 | //\r | |
27 | // Cache data hub protocol.\r | |
28 | //\r | |
29 | EFI_DATA_HUB_PROTOCOL *mDataHubProtocol;\r | |
30 | \r | |
31 | \r | |
32 | /**\r | |
33 | Return buffer of length DATAHUB_STATUSCODE_RECORD\r | |
34 | \r | |
35 | @retval NULL Can not allocate free memeory for record.\r | |
36 | @retval !NULL Point to buffer of record.\r | |
37 | \r | |
38 | **/\r | |
39 | DATAHUB_STATUSCODE_RECORD *\r | |
40 | AcquireRecordBuffer (\r | |
41 | VOID\r | |
42 | )\r | |
43 | {\r | |
44 | DATAHUB_STATUSCODE_RECORD *Record;\r | |
45 | \r | |
46 | Record = (DATAHUB_STATUSCODE_RECORD *) AllocateZeroPool (sizeof (DATAHUB_STATUSCODE_RECORD));\r | |
47 | if (NULL == Record) {\r | |
48 | return NULL;\r | |
49 | }\r | |
50 | Record->Signature = DATAHUB_STATUS_CODE_SIGNATURE;\r | |
51 | \r | |
52 | EfiAcquireLock (&mFifoLock);\r | |
53 | InsertTailList (&mRecordsFifo, &Record->Node);\r | |
54 | mNumberOfRecords++;\r | |
55 | EfiReleaseLock (&mFifoLock);\r | |
56 | \r | |
57 | return Record;\r | |
58 | }\r | |
59 | \r | |
60 | \r | |
61 | /**\r | |
62 | Release a mRecordBuffer entry allocated by AcquirRecordBuffer ().\r | |
63 | \r | |
64 | @param Record Point to record buffer which is acquired by AcquirRecordBuffer()\r | |
65 | \r | |
66 | @retval EFI_SUCCESS If DataRecord is valid.\r | |
67 | @retval !EFI_SUCCESS The record list has empty.\r | |
68 | \r | |
69 | **/\r | |
70 | VOID\r | |
71 | FreeRecordBuffer (\r | |
72 | IN DATAHUB_STATUSCODE_RECORD *Record\r | |
73 | )\r | |
74 | /*++\r | |
75 | \r | |
76 | Routine Description:\r | |
77 | \r | |
78 | Release a mRecordBuffer entry allocated by AquireEmptyRecordBuffer ().\r | |
79 | \r | |
80 | Arguments:\r | |
81 | \r | |
82 | RecordBuffer - Data to free\r | |
83 | \r | |
84 | Returns:\r | |
85 | \r | |
86 | EFI_SUCCESS - If DataRecord is valid\r | |
87 | EFI_UNSUPPORTED - The record list has empty\r | |
88 | \r | |
89 | --*/\r | |
90 | {\r | |
91 | ASSERT (Record != NULL);\r | |
92 | ASSERT (mNumberOfRecords != 0);\r | |
93 | \r | |
94 | EfiAcquireLock (&mFifoLock);\r | |
95 | RemoveEntryList (&Record->Node);\r | |
96 | mNumberOfRecords--;\r | |
97 | EfiReleaseLock (&mFifoLock);\r | |
98 | \r | |
99 | FreePool (Record);\r | |
100 | }\r | |
101 | \r | |
102 | \r | |
103 | /**\r | |
104 | Report status code into DataHub.\r | |
105 | \r | |
106 | Content-type: text/html ]>