1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** FileX Component                                                       */
16 /**                                                                       */
17 /**   Directory                                                           */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 #define FX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "fx_api.h"
28 #include "fx_system.h"
29 #include "fx_file.h"
30 #include "fx_utility.h"
31 #include "fx_directory.h"
32 
33 #ifndef FX_NO_LOCAL_PATH
34 FX_LOCAL_PATH_SETUP
35 #endif
36 
37 /**************************************************************************/
38 /*                                                                        */
39 /*  FUNCTION                                               RELEASE        */
40 /*                                                                        */
41 /*    _fx_directory_local_path_restore                    PORTABLE C      */
42 /*                                                           6.1.5        */
43 /*  AUTHOR                                                                */
44 /*                                                                        */
45 /*    William E. Lamie, Microsoft Corporation                             */
46 /*                                                                        */
47 /*  DESCRIPTION                                                           */
48 /*                                                                        */
49 /*    This function restores the local default directory of the media to  */
50 /*    the previous path specified by the caller.                          */
51 /*                                                                        */
52 /*  INPUT                                                                 */
53 /*                                                                        */
54 /*    media_ptr                             Media control block pointer   */
55 /*    local_path_ptr                        Local path control block ptr  */
56 /*                                                                        */
57 /*  OUTPUT                                                                */
58 /*                                                                        */
59 /*    return status                                                       */
60 /*                                                                        */
61 /*  CALLS                                                                 */
62 /*                                                                        */
63 /*    None                                                                */
64 /*                                                                        */
65 /*  CALLED BY                                                             */
66 /*                                                                        */
67 /*    Application Code                                                    */
68 /*                                                                        */
69 /*  RELEASE HISTORY                                                       */
70 /*                                                                        */
71 /*    DATE              NAME                      DESCRIPTION             */
72 /*                                                                        */
73 /*  05-19-2020     William E. Lamie         Initial Version 6.0           */
74 /*  09-30-2020     William E. Lamie         Modified comment(s),          */
75 /*                                            resulting in version 6.1    */
76 /*  03-02-2021     William E. Lamie         Modified comment(s),          */
77 /*                                            resulting in version 6.1.5  */
78 /*                                                                        */
79 /**************************************************************************/
_fx_directory_local_path_restore(FX_MEDIA * media_ptr,FX_LOCAL_PATH * local_path_ptr)80 UINT  _fx_directory_local_path_restore(FX_MEDIA *media_ptr, FX_LOCAL_PATH *local_path_ptr)
81 {
82 
83 
84 #ifndef FX_MEDIA_STATISTICS_DISABLE
85 
86     /* Increment the number of times this service has been called.  */
87     media_ptr -> fx_media_directory_local_path_restores++;
88 #endif
89 
90     /* Check the media to make sure it is open.  */
91     if (media_ptr -> fx_media_id != FX_MEDIA_ID)
92     {
93 
94         /* Return the media not opened error.  */
95         return(FX_MEDIA_NOT_OPEN);
96     }
97 
98 #ifdef FX_NO_LOCAL_PATH
99 
100     FX_PARAMETER_NOT_USED(local_path_ptr);
101 
102     /* Error, return to caller.  */
103     return(FX_NOT_IMPLEMENTED);
104 #else
105 
106     /* If trace is enabled, insert this event into the trace buffer.  */
107     FX_TRACE_IN_LINE_INSERT(FX_TRACE_DIRECTORY_LOCAL_PATH_RESTORE, media_ptr, local_path_ptr, 0, 0, FX_TRACE_DIRECTORY_EVENTS, 0, 0)
108 
109     /* Setup thread control block to use this local path pointer.  */
110     _tx_thread_current_ptr -> tx_thread_filex_ptr =  (VOID *)local_path_ptr;
111 
112     /* Default directory restore is complete, return status.  */
113     return(FX_SUCCESS);
114 #endif
115 }
116 
117