fx_fault_tolerant_transaction_start.c
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /*************************************************************************** | ||
| 2 | * Copyright (c) 2024 Microsoft Corporation | ||
| 3 | * Copyright (c) 2026-present Eclipse ThreadX contributors | ||
| 4 | * | ||
| 5 | * This program and the accompanying materials are made available under the | ||
| 6 | * terms of the MIT License which is available at | ||
| 7 | * https://opensource.org/licenses/MIT. | ||
| 8 | * | ||
| 9 | * SPDX-License-Identifier: MIT | ||
| 10 | **************************************************************************/ | ||
| 11 | |||
| 12 | |||
| 13 | /**************************************************************************/ | ||
| 14 | /**************************************************************************/ | ||
| 15 | /** */ | ||
| 16 | /** FileX Component */ | ||
| 17 | /** */ | ||
| 18 | /** Fault Tolerant */ | ||
| 19 | /** */ | ||
| 20 | /**************************************************************************/ | ||
| 21 | /**************************************************************************/ | ||
| 22 | |||
| 23 | #define FX_SOURCE_CODE | ||
| 24 | |||
| 25 | #include "fx_api.h" | ||
| 26 | #include "fx_fault_tolerant.h" | ||
| 27 | |||
| 28 | |||
| 29 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 30 | /**************************************************************************/ | ||
| 31 | /* */ | ||
| 32 | /* FUNCTION RELEASE */ | ||
| 33 | /* */ | ||
| 34 | /* _fx_fault_tolerant_transaction_start PORTABLE C */ | ||
| 35 | /* 6.1 */ | ||
| 36 | /* AUTHOR */ | ||
| 37 | /* */ | ||
| 38 | /* William E. Lamie, Microsoft Corporation */ | ||
| 39 | /* */ | ||
| 40 | /* DESCRIPTION */ | ||
| 41 | /* */ | ||
| 42 | /* This function is called at the beginning of an update to FileX */ | ||
| 43 | /* file, directory entry, or FAT table. It resets fault tolerant */ | ||
| 44 | /* internal state information. */ | ||
| 45 | /* */ | ||
| 46 | /* INPUT */ | ||
| 47 | /* */ | ||
| 48 | /* media_ptr Media control block pointer */ | ||
| 49 | /* */ | ||
| 50 | /* OUTPUT */ | ||
| 51 | /* */ | ||
| 52 | /* return status */ | ||
| 53 | /* */ | ||
| 54 | /* CALLS */ | ||
| 55 | /* */ | ||
| 56 | /* None */ | ||
| 57 | /* */ | ||
| 58 | /* CALLED BY */ | ||
| 59 | /* */ | ||
| 60 | /* _fx_directory_attributes_set */ | ||
| 61 | /* _fx_directory_create */ | ||
| 62 | /* _fx_directory_delete */ | ||
| 63 | /* _fx_directory_rename */ | ||
| 64 | /* _fx_file_allocate */ | ||
| 65 | /* _fx_file_attributes_set */ | ||
| 66 | /* _fx_file_best_effort_allocate */ | ||
| 67 | /* _fx_file_create */ | ||
| 68 | /* _fx_file_delete */ | ||
| 69 | /* _fx_file_rename */ | ||
| 70 | /* _fx_file_truncate */ | ||
| 71 | /* _fx_file_truncate_release */ | ||
| 72 | /* _fx_file_write */ | ||
| 73 | /* _fx_unicode_directory_create */ | ||
| 74 | /* _fx_unicode_file_create */ | ||
| 75 | /* */ | ||
| 76 | /**************************************************************************/ | ||
| 77 | 162909389 | UINT _fx_fault_tolerant_transaction_start(FX_MEDIA *media_ptr) | |
| 78 | { | ||
| 79 | |||
| 80 | /* Is fault tolerant enabled? */ | ||
| 81 |
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162909389 | if (media_ptr -> fx_media_fault_tolerant_enabled == FX_TRUE) |
| 82 | { | ||
| 83 | |||
| 84 | /* Is this a new transaction? */ | ||
| 85 |
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160146299 | if (media_ptr -> fx_media_fault_tolerant_transaction_count == 0) |
| 86 | { | ||
| 87 | |||
| 88 | /* Yes. Initialize data. */ | ||
| 89 | 160144703 | media_ptr -> fx_media_fault_tolerant_file_size = FX_FAULT_TOLERANT_LOG_HEADER_SIZE + | |
| 90 | FX_FAULT_TOLERANT_FAT_CHAIN_SIZE + | ||
| 91 | FX_FAULT_TOLERANT_LOG_CONTENT_HEADER_SIZE; | ||
| 92 | |||
| 93 | /* Reset total logs. */ | ||
| 94 | 160144703 | media_ptr -> fx_media_fault_tolerant_total_logs = 0; | |
| 95 | |||
| 96 | /* Set state of fault tolerant. */ | ||
| 97 | 160144703 | media_ptr -> fx_media_fault_tolerant_state = FX_FAULT_TOLERANT_STATE_STARTED; | |
| 98 | } | ||
| 99 | |||
| 100 | /* Increase the transaction. */ | ||
| 101 | 160146299 | media_ptr -> fx_media_fault_tolerant_transaction_count++; | |
| 102 | } | ||
| 103 | |||
| 104 | 162909389 | return(FX_SUCCESS); | |
| 105 | } | ||
| 106 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 107 | |||
| 108 |