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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** FileX Component */ |
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/** */ |
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/** Directory */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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#define FX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "fx_api.h" |
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#include "fx_system.h" |
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#include "fx_directory.h" |
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#include "fx_utility.h" |
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#ifndef FX_NO_LOCAL_PATH |
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FX_LOCAL_PATH_SETUP |
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#endif |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _fx_directory_first_entry_find PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* William E. Lamie, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function returns the first directory entry of the current */ |
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/* working directory. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* media_ptr Media control block pointer */ |
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/* directory_name Destination for directory */ |
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/* name */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* return status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _fx_directory_next_entry_find Find next directory entry */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* FileX System Functions */ |
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/* */ |
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/**************************************************************************/ |
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UINT _fx_directory_first_entry_find(FX_MEDIA *media_ptr, CHAR *directory_name) |
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{ |
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UINT status; |
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#ifndef FX_MEDIA_STATISTICS_DISABLE |
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/* Increment the number of times this service has been called. */ |
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media_ptr -> fx_media_directory_first_entry_finds++; |
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#endif |
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/* Check the media to make sure it is open. */ |
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✓✓ |
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if (media_ptr -> fx_media_id != FX_MEDIA_ID) |
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{ |
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/* Return the media not opened error. */ |
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return(FX_MEDIA_NOT_OPEN); |
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} |
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/* If trace is enabled, insert this event into the trace buffer. */ |
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FX_TRACE_IN_LINE_INSERT(FX_TRACE_DIRECTORY_FIRST_ENTRY_FIND, media_ptr, directory_name, 0, 0, FX_TRACE_DIRECTORY_EVENTS, 0, 0) |
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/* Protect against other threads accessing the media. */ |
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FX_PROTECT |
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/* Determine if a local path is in effect at this point. */ |
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#ifndef FX_NO_LOCAL_PATH |
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✓✓ |
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if (_tx_thread_current_ptr -> tx_thread_filex_ptr) |
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{ |
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/* Yes, there is a local path. Set the current entry to zero. */ |
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((FX_PATH *)_tx_thread_current_ptr -> tx_thread_filex_ptr) -> fx_path_current_entry = 0; |
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} |
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else |
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{ |
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/* Use global default directory. Set the current entry to 0 in |
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order to pickup the first entry. */ |
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media_ptr -> fx_media_default_path.fx_path_current_entry = 0; |
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} |
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#else |
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/* Set the current entry to 0 in order to pickup the first entry. */ |
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media_ptr -> fx_media_default_path.fx_path_current_entry = 0; |
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#endif |
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/* Release media protection. */ |
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FX_UNPROTECT |
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/* Call the next directory entry to pickup the first entry. */ |
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status = _fx_directory_next_entry_find(media_ptr, directory_name); |
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/* Return status to the caller. */ |
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return(status); |
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} |
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