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1 | /** @file\r |
2 | UEFI Boot Services Table Library.\r |
3 | \r |
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4 | Copyright (c) 2006 - 2007, Intel Corporation<BR>\r |
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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 |
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9 | \r |
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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 |
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12 | \r |
13 | Module Name: UefiBootServicesTableLib.c\r |
14 | \r |
15 | **/\r |
16 | \r |
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17 | EFI_HANDLE gImageHandle = NULL;\r |
18 | EFI_SYSTEM_TABLE *gST = NULL;\r |
19 | EFI_BOOT_SERVICES *gBS = NULL;\r |
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20 | \r |
21 | /**\r |
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22 | The constructor function caches the pointer of Boot Services Table.\r |
23 | \r |
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24 | The constructor function caches the pointer of Boot Services Table through System Table.\r |
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25 | It will ASSERT() if the pointer of System Table is NULL.\r |
26 | It will ASSERT() if the pointer of Boot Services Table is NULL.\r |
27 | It will always return EFI_SUCCESS.\r |
28 | \r |
29 | @param ImageHandle The firmware allocated handle for the EFI image.\r |
30 | @param SystemTable A pointer to the EFI System Table.\r |
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31 | \r |
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32 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r |
33 | \r |
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34 | **/\r |
35 | EFI_STATUS\r |
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36 | EFIAPI\r |
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37 | UefiBootServicesTableLibConstructor (\r |
38 | IN EFI_HANDLE ImageHandle,\r |
39 | IN EFI_SYSTEM_TABLE *SystemTable\r |
40 | )\r |
41 | {\r |
42 | //\r |
43 | // Cache the Image Handle\r |
44 | //\r |
45 | gImageHandle = ImageHandle;\r |
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46 | ASSERT (gImageHandle != NULL);\r |
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47 | \r |
48 | //\r |
49 | // Cache pointer to the EFI System Table\r |
50 | //\r |
51 | gST = SystemTable;\r |
52 | ASSERT (gST != NULL);\r |
53 | \r |
54 | //\r |
55 | // Cache pointer to the EFI Boot Services Table\r |
56 | //\r |
57 | gBS = SystemTable->BootServices;\r |
58 | ASSERT (gBS != NULL);\r |
59 | \r |
60 | return EFI_SUCCESS;\r |
61 | }\r |