Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	fx_file_create.c	Lines:	46	46	100.0 %
Date:	2024-01-10 21:53:23	Branches:	26	26	100.0 %


/**************************************************************************/
/*                                                                        */
/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
/*                                                                        */
/*       This software is licensed under the Microsoft Software License   */
/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
/*       and in the root directory of this software.                      */
/*                                                                        */
/**************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** FileX Component                                                       */
/**                                                                       */
/**   File                                                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define FX_SOURCE_CODE


/* Include necessary system files.  */

#include "fx_api.h"
#include "fx_system.h"
#include "fx_directory.h"
#include "fx_file.h"
#include "fx_utility.h"
#ifdef FX_ENABLE_FAULT_TOLERANT
#include "fx_fault_tolerant.h"
#endif /* FX_ENABLE_FAULT_TOLERANT */


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _fx_file_create                                     PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    William E. Lamie, Microsoft Corporation                             */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function first attempts to find the specified file.  If found, */
/*    the create request is invalid and an error is returned to the       */
/*    caller.  After the file name verification is made, a search for a   */
/*    free directory entry will be made.  If nothing is available, an     */
/*    error will be returned to the caller.  Otherwise, if all is okay, a */
/*    file of 0 bytes will be created.                                    */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    media_ptr                             Media control block pointer   */
/*    file_name                             File name                     */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    return status                                                       */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _fx_directory_entry_write             Write the new directory entry */
/*    _fx_directory_name_extract            Extract directory name        */
/*    _fx_directory_search                  Search for the file name in   */
/*                                          the directory structure       */
/*    _fx_directory_free_search             Search for a free directory   */
/*                                            entry                       */
/*    _fx_fault_tolerant_transaction_start  Start fault tolerant          */
/*                                            transaction                 */
/*    _fx_fault_tolerant_transaction_end    End fault tolerant transaction*/
/*    _fx_fault_tolerant_recover            Recover FAT chain             */
/*    _fx_fault_tolerant_reset_log_file     Reset the log file            */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  05-19-2020     William E. Lamie         Initial Version 6.0           */
/*  09-30-2020     William E. Lamie         Modified comment(s),          */
/*                                            resulting in version 6.1    */
/*                                                                        */
/**************************************************************************/
UINT  _fx_file_create(FX_MEDIA *media_ptr, CHAR *file_name)
{

FX_INT_SAVE_AREA

UINT         status;
CHAR        *name_ptr;
UINT         i;
CHAR        *work_ptr;
FX_DIR_ENTRY dir_entry;
FX_DIR_ENTRY search_directory;
#ifdef FX_ENABLE_EXFAT
ULONG64      dir_size;
#endif /* FX_ENABLE_EXFAT */


#ifndef FX_MEDIA_STATISTICS_DISABLE

    /* Increment the number of times this service has been called.  */
    media_ptr -> fx_media_file_creates++;
#endif

    /* Determine if the supplied name is less than the maximum supported name size. The
       maximum name (FX_MAX_LONG_NAME_LEN) is defined in fx_api.h.  */
    i =  0;
    work_ptr =  (CHAR *)file_name;
    while (*work_ptr)
    {

        /* Determine if the character designates a new path.  */
        if ((*work_ptr == '\\') || (*work_ptr == '/'))
        {
            /* Yes, reset the name size.  */
            i =  0;
        }
        /* Check for leading spaces.  */
        else if ((*work_ptr != ' ') || (i != 0))
        {

            /* No leading spaces, increment the name size.  */
            i++;
        }

        /* Move to the next character.  */
        work_ptr++;
    }

    /* Determine if the supplied name is valid.  */
    if ((i == 0) || (i >= FX_MAX_LONG_NAME_LEN))
    {

        /* Return an invalid name value.  */
        return(FX_INVALID_NAME);
    }

    /* Setup pointer to media name buffer.  */
    dir_entry.fx_dir_entry_name =  media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN;

    /* Setup another pointer to another media name buffer.  */
    search_directory.fx_dir_entry_name =  media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN * 2;

    /* Clear the short name strings.  */
    dir_entry.fx_dir_entry_short_name[0] =        0;
    search_directory.fx_dir_entry_short_name[0] = 0;

    /* Check the media to make sure it is open.  */
    if (media_ptr -> fx_media_id != FX_MEDIA_ID)
    {

        /* Return the media not opened error.  */
        return(FX_MEDIA_NOT_OPEN);
    }

    /* If trace is enabled, insert this event into the trace buffer.  */
    FX_TRACE_IN_LINE_INSERT(FX_TRACE_FILE_CREATE, media_ptr, file_name, 0, 0, FX_TRACE_FILE_EVENTS, 0, 0)

    /* Protect against other threads accessing the media.  */
    FX_PROTECT

#ifdef FX_ENABLE_FAULT_TOLERANT
    /* Start transaction. */
    _fx_fault_tolerant_transaction_start(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

    /* Check for write protect at the media level (set by driver).  */
    if (media_ptr -> fx_media_driver_write_protect)
    {

#ifdef FX_ENABLE_FAULT_TOLERANT
        FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

        /* Release media protection.  */
        FX_UNPROTECT

        /* Return write protect error.  */
        return(FX_WRITE_PROTECT);
    }

    /* Search the system for the supplied file name.  */
    status =  _fx_directory_search(media_ptr, file_name, &dir_entry, &search_directory, &name_ptr);

    /* Determine if the search was successful.  */
    if (status == FX_SUCCESS)
    {

#ifdef FX_ENABLE_FAULT_TOLERANT
        FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

        /* Release media protection.  */
        FX_UNPROTECT

        /* File found - Return the error code.  */
        return(FX_ALREADY_CREATED);
    }

    /* Determine if there is anything left after the name.  */
    if (_fx_directory_name_extract(name_ptr, &dir_entry.fx_dir_entry_name[0]))
    {

#ifdef FX_ENABLE_FAULT_TOLERANT
        FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

        /* Release media protection.  */
        FX_UNPROTECT

        /* Extra information after the file name, return an invalid path
           error.  */
        return(FX_INVALID_PATH);
    }

#ifdef FX_ENABLE_EXFAT
    if (media_ptr -> fx_media_FAT_type == FX_exFAT)
    {
        if (((dir_entry.fx_dir_entry_name[0] == '.') && (dir_entry.fx_dir_entry_name[1] == 0)) ||
            ((dir_entry.fx_dir_entry_name[0] == '.') && (dir_entry.fx_dir_entry_name[1] == '.') && (dir_entry.fx_dir_entry_name[2] == 0)))
        {
#ifdef FX_ENABLE_FAULT_TOLERANT
            FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

            /* Release media protection.  */
            FX_UNPROTECT

            /* We don't need '.' or '..' for exFAT */
            return(FX_ALREADY_CREATED);
        }
    }

    /* Save the directory entry size.  */
    dir_size = search_directory.fx_dir_entry_file_size;
#endif /* FX_ENABLE_EXFAT */

    /* Find a free slot for the new file.  */
    status =  _fx_directory_free_search(media_ptr, &search_directory, &dir_entry);

    /* Determine if the search was successful.  */
    if (status != FX_SUCCESS)
    {

#ifdef FX_ENABLE_FAULT_TOLERANT
        FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

        /* Release media protection.  */
        FX_UNPROTECT

        /* Return the error code.  */
        return(status);
    }

    /* Populate the directory entry.  */

    /* Isolate the file name.  */
    _fx_directory_name_extract(name_ptr, &dir_entry.fx_dir_entry_name[0]);

    /* Disable interrupts for time/date access.  */
    FX_DISABLE_INTS

    /* Set time and date stamps.  */
    dir_entry.fx_dir_entry_time =  _fx_system_time;
    dir_entry.fx_dir_entry_date =  _fx_system_date;

    /* Restore interrupts.  */
    FX_RESTORE_INTS

    /* Set the attributes for the file.  */
    dir_entry.fx_dir_entry_attributes =  FX_ARCHIVE;

    /* Set file size to 0. */
    dir_entry.fx_dir_entry_file_size =  0;

#ifdef FX_ENABLE_EXFAT
    /* Set available file size to 0. */
    dir_entry.fx_dir_entry_available_file_size = 0;
#endif /* FX_ENABLE_EXFAT */

    /* Set the cluster to NULL.  */
    dir_entry.fx_dir_entry_cluster =    FX_NULL;

    /* Is there a leading dot?  */
    if (dir_entry.fx_dir_entry_name[0] == '.')
    {

        /* Yes, toggle the hidden attribute bit.  */
        dir_entry.fx_dir_entry_attributes |=  FX_HIDDEN;
    }

#ifdef FX_ENABLE_EXFAT
    if (media_ptr -> fx_media_FAT_type == FX_exFAT)
    {

        /* Don't use FAT by default.  */
        dir_entry.fx_dir_entry_dont_use_fat = (CHAR)(((search_directory.fx_dir_entry_dont_use_fat & 1) << 1) | 1);

        if (search_directory.fx_dir_entry_name[0])
        {

            /* Not root directory.  */
            /* Copy the date and time from the actual sub-directory.  */
            search_directory.fx_dir_entry_time = dir_entry.fx_dir_entry_time;
            search_directory.fx_dir_entry_date = dir_entry.fx_dir_entry_date;

            /* Check if the directory size has changed.  */
            if (search_directory.fx_dir_entry_file_size == dir_size)
            {

                /* Not changed, we need only update time stamps.  */
                status = _fx_directory_exFAT_entry_write(media_ptr, &search_directory, UPDATE_FILE);
            }
            else
            {

                /* Directory size changed, update time stamps and the stream size.  */
                status = _fx_directory_exFAT_entry_write(media_ptr, &search_directory, UPDATE_STREAM);
            }

            /* Check for a bad status.  */
            if (status != FX_SUCCESS)
            {

#ifdef FX_ENABLE_FAULT_TOLERANT
                FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

                /* Release media protection.  */
                FX_UNPROTECT

                /* Return the bad status.  */
                return(status);
            }
        }
    }
    else
    {
        dir_entry.fx_dir_entry_dont_use_fat = 0;
    }
#endif /* FX_ENABLE_EXFAT */

    /* Now write out the directory entry.  */
#ifdef FX_ENABLE_EXFAT
    if (media_ptr -> fx_media_FAT_type == FX_exFAT)
    {
        status = _fx_directory_exFAT_entry_write(media_ptr, &dir_entry, UPDATE_FULL);
    }
    else
    {
#endif /* FX_ENABLE_EXFAT */
        status = _fx_directory_entry_write(media_ptr, &dir_entry);
#ifdef FX_ENABLE_EXFAT
    }
#endif /* FX_ENABLE_EXFAT */

#ifdef FX_ENABLE_FAULT_TOLERANT
    /* Check for a bad status.  */
    if (status != FX_SUCCESS)
    {

        FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);

        /* Release media protection.  */
        FX_UNPROTECT

        /* Return the bad status.  */
        return(status);
    }

    /* End transaction. */
    status = _fx_fault_tolerant_transaction_end(media_ptr);
#endif /* FX_ENABLE_FAULT_TOLERANT */

    /* Release media protection.  */
    FX_UNPROTECT

    /* File create is complete, return status.  */
    return(status);
}



Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/**************************************************************************/
2			/* */
3			/* Copyright (c) Microsoft Corporation. All rights reserved. */
4			/* */
5			/* This software is licensed under the Microsoft Software License */
6			/* Terms for Microsoft Azure RTOS. Full text of the license can be */
7			/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8			/* and in the root directory of this software. */
9			/* */
10			/**************************************************************************/
11
12
13			/**************************************************************************/
14			/**************************************************************************/
15			/** */
16			/** FileX Component */
17			/** */
18			/** File */
19			/** */
20			/**************************************************************************/
21			/**************************************************************************/
22
23			#define FX_SOURCE_CODE
24
25
26			/* Include necessary system files. */
27
28			#include "fx_api.h"
29			#include "fx_system.h"
30			#include "fx_directory.h"
31			#include "fx_file.h"
32			#include "fx_utility.h"
33			#ifdef FX_ENABLE_FAULT_TOLERANT
34			#include "fx_fault_tolerant.h"
35			#endif /* FX_ENABLE_FAULT_TOLERANT */
36
37
38			/**************************************************************************/
39			/* */
40			/* FUNCTION RELEASE */
41			/* */
42			/* _fx_file_create PORTABLE C */
43			/* 6.1 */
44			/* AUTHOR */
45			/* */
46			/* William E. Lamie, Microsoft Corporation */
47			/* */
48			/* DESCRIPTION */
49			/* */
50			/* This function first attempts to find the specified file. If found, */
51			/* the create request is invalid and an error is returned to the */
52			/* caller. After the file name verification is made, a search for a */
53			/* free directory entry will be made. If nothing is available, an */
54			/* error will be returned to the caller. Otherwise, if all is okay, a */
55			/* file of 0 bytes will be created. */
56			/* */
57			/* INPUT */
58			/* */
59			/* media_ptr Media control block pointer */
60			/* file_name File name */
61			/* */
62			/* OUTPUT */
63			/* */
64			/* return status */
65			/* */
66			/* CALLS */
67			/* */
68			/* _fx_directory_entry_write Write the new directory entry */
69			/* _fx_directory_name_extract Extract directory name */
70			/* _fx_directory_search Search for the file name in */
71			/* the directory structure */
72			/* _fx_directory_free_search Search for a free directory */
73			/* entry */
74			/* _fx_fault_tolerant_transaction_start Start fault tolerant */
75			/* transaction */
76			/* _fx_fault_tolerant_transaction_end End fault tolerant transaction*/
77			/* _fx_fault_tolerant_recover Recover FAT chain */
78			/* _fx_fault_tolerant_reset_log_file Reset the log file */
79			/* */
80			/* CALLED BY */
81			/* */
82			/* Application Code */
83			/* */
84			/* RELEASE HISTORY */
85			/* */
86			/* DATE NAME DESCRIPTION */
87			/* */
88			/* 05-19-2020 William E. Lamie Initial Version 6.0 */
89			/* 09-30-2020 William E. Lamie Modified comment(s), */
90			/* resulting in version 6.1 */
91			/* */
92			/**************************************************************************/
93		55363	UINT _fx_file_create(FX_MEDIA media_ptr, CHAR file_name)
94			{
95
96			FX_INT_SAVE_AREA
97
98			UINT status;
99			CHAR *name_ptr;
100			UINT i;
101			CHAR *work_ptr;
102			FX_DIR_ENTRY dir_entry;
103			FX_DIR_ENTRY search_directory;
104			#ifdef FX_ENABLE_EXFAT
105			ULONG64 dir_size;
106			#endif /* FX_ENABLE_EXFAT */
107
108
109			#ifndef FX_MEDIA_STATISTICS_DISABLE
110
111			/* Increment the number of times this service has been called. */
112		55363	media_ptr -> fx_media_file_creates++;
113			#endif
114
115			/* Determine if the supplied name is less than the maximum supported name size. The
116			maximum name (FX_MAX_LONG_NAME_LEN) is defined in fx_api.h. */
117		55363	i = 0;
118		55363	work_ptr = (CHAR *)file_name;
119	✓✓	737491	while (*work_ptr)
120			{
121
122			/* Determine if the character designates a new path. */
123	✓✓✓✓	682128	if ((work_ptr == '\\') \|\| (work_ptr == '/'))
124			{
125			/* Yes, reset the name size. */
126		28434	i = 0;
127			}
128			/* Check for leading spaces. */
129	✓✓✓✓	653694	else if ((*work_ptr != ' ') \|\| (i != 0))
130			{
131
132			/* No leading spaces, increment the name size. */
133		653670	i++;
134			}
135
136			/* Move to the next character. */
137		682128	work_ptr++;
138			}
139
140			/* Determine if the supplied name is valid. */
141	✓✓✓✓	55363	if ((i == 0) \|\| (i >= FX_MAX_LONG_NAME_LEN))
142			{
143
144			/* Return an invalid name value. */
145		2	return(FX_INVALID_NAME);
146			}
147
148			/* Setup pointer to media name buffer. */
149		55361	dir_entry.fx_dir_entry_name = media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN;
150
151			/* Setup another pointer to another media name buffer. */
152		55361	search_directory.fx_dir_entry_name = media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN * 2;
153
154			/* Clear the short name strings. */
155		55361	dir_entry.fx_dir_entry_short_name[0] = 0;
156		55361	search_directory.fx_dir_entry_short_name[0] = 0;
157
158			/* Check the media to make sure it is open. */
159	✓✓	55361	if (media_ptr -> fx_media_id != FX_MEDIA_ID)
160			{
161
162			/* Return the media not opened error. */
163		1	return(FX_MEDIA_NOT_OPEN);
164			}
165
166			/* If trace is enabled, insert this event into the trace buffer. */
167			FX_TRACE_IN_LINE_INSERT(FX_TRACE_FILE_CREATE, media_ptr, file_name, 0, 0, FX_TRACE_FILE_EVENTS, 0, 0)
168
169			/* Protect against other threads accessing the media. */
170		55360	FX_PROTECT
171
172			#ifdef FX_ENABLE_FAULT_TOLERANT
173			/* Start transaction. */
174			_fx_fault_tolerant_transaction_start(media_ptr);
175			#endif /* FX_ENABLE_FAULT_TOLERANT */
176
177			/* Check for write protect at the media level (set by driver). */
178	✓✓	55360	if (media_ptr -> fx_media_driver_write_protect)
179			{
180
181			#ifdef FX_ENABLE_FAULT_TOLERANT
182			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
183			#endif /* FX_ENABLE_FAULT_TOLERANT */
184
185			/* Release media protection. */
186		2	FX_UNPROTECT
187
188			/* Return write protect error. */
189		2	return(FX_WRITE_PROTECT);
190			}
191
192			/* Search the system for the supplied file name. */
193		55358	status = _fx_directory_search(media_ptr, file_name, &dir_entry, &search_directory, &name_ptr);
194
195			/* Determine if the search was successful. */
196	✓✓	55358	if (status == FX_SUCCESS)
197			{
198
199			#ifdef FX_ENABLE_FAULT_TOLERANT
200			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
201			#endif /* FX_ENABLE_FAULT_TOLERANT */
202
203			/* Release media protection. */
204		437	FX_UNPROTECT
205
206			/* File found - Return the error code. */
207		437	return(FX_ALREADY_CREATED);
208			}
209
210			/* Determine if there is anything left after the name. */
211	✓✓	54921	if (_fx_directory_name_extract(name_ptr, &dir_entry.fx_dir_entry_name[0]))
212			{
213
214			#ifdef FX_ENABLE_FAULT_TOLERANT
215			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
216			#endif /* FX_ENABLE_FAULT_TOLERANT */
217
218			/* Release media protection. */
219		2	FX_UNPROTECT
220
221			/* Extra information after the file name, return an invalid path
222			error. */
223		2	return(FX_INVALID_PATH);
224			}
225
226			#ifdef FX_ENABLE_EXFAT
227			if (media_ptr -> fx_media_FAT_type == FX_exFAT)
228			{
229			if (((dir_entry.fx_dir_entry_name[0] == '.') && (dir_entry.fx_dir_entry_name[1] == 0)) \|\|
230			((dir_entry.fx_dir_entry_name[0] == '.') && (dir_entry.fx_dir_entry_name[1] == '.') && (dir_entry.fx_dir_entry_name[2] == 0)))
231			{
232			#ifdef FX_ENABLE_FAULT_TOLERANT
233			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
234			#endif /* FX_ENABLE_FAULT_TOLERANT */
235
236			/* Release media protection. */
237			FX_UNPROTECT
238
239			/* We don't need '.' or '..' for exFAT */
240			return(FX_ALREADY_CREATED);
241			}
242			}
243
244			/* Save the directory entry size. */
245			dir_size = search_directory.fx_dir_entry_file_size;
246			#endif /* FX_ENABLE_EXFAT */
247
248			/* Find a free slot for the new file. */
249		54919	status = _fx_directory_free_search(media_ptr, &search_directory, &dir_entry);
250
251			/* Determine if the search was successful. */
252	✓✓	54919	if (status != FX_SUCCESS)
253			{
254
255			#ifdef FX_ENABLE_FAULT_TOLERANT
256			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
257			#endif /* FX_ENABLE_FAULT_TOLERANT */
258
259			/* Release media protection. */
260		21	FX_UNPROTECT
261
262			/* Return the error code. */
263		21	return(status);
264			}
265
266			/* Populate the directory entry. */
267
268			/* Isolate the file name. */
269		54898	_fx_directory_name_extract(name_ptr, &dir_entry.fx_dir_entry_name[0]);
270
271			/* Disable interrupts for time/date access. */
272		54898	FX_DISABLE_INTS
273
274			/* Set time and date stamps. */
275		54898	dir_entry.fx_dir_entry_time = _fx_system_time;
276		54898	dir_entry.fx_dir_entry_date = _fx_system_date;
277
278			/* Restore interrupts. */
279		54898	FX_RESTORE_INTS
280
281			/* Set the attributes for the file. */
282		54898	dir_entry.fx_dir_entry_attributes = FX_ARCHIVE;
283
284			/* Set file size to 0. */
285		54898	dir_entry.fx_dir_entry_file_size = 0;
286
287			#ifdef FX_ENABLE_EXFAT
288			/* Set available file size to 0. */
289			dir_entry.fx_dir_entry_available_file_size = 0;
290			#endif /* FX_ENABLE_EXFAT */
291
292			/* Set the cluster to NULL. */
293		54898	dir_entry.fx_dir_entry_cluster = FX_NULL;
294
295			/* Is there a leading dot? */
296	✓✓	54898	if (dir_entry.fx_dir_entry_name[0] == '.')
297			{
298
299			/* Yes, toggle the hidden attribute bit. */
300		2	dir_entry.fx_dir_entry_attributes \|= FX_HIDDEN;
301			}
302
303			#ifdef FX_ENABLE_EXFAT
304			if (media_ptr -> fx_media_FAT_type == FX_exFAT)
305			{
306
307			/* Don't use FAT by default. */
308			dir_entry.fx_dir_entry_dont_use_fat = (CHAR)(((search_directory.fx_dir_entry_dont_use_fat & 1) << 1) \| 1);
309
310			if (search_directory.fx_dir_entry_name[0])
311			{
312
313			/* Not root directory. */
314			/* Copy the date and time from the actual sub-directory. */
315			search_directory.fx_dir_entry_time = dir_entry.fx_dir_entry_time;
316			search_directory.fx_dir_entry_date = dir_entry.fx_dir_entry_date;
317
318			/* Check if the directory size has changed. */
319			if (search_directory.fx_dir_entry_file_size == dir_size)
320			{
321
322			/* Not changed, we need only update time stamps. */
323			status = _fx_directory_exFAT_entry_write(media_ptr, &search_directory, UPDATE_FILE);
324			}
325			else
326			{
327
328			/* Directory size changed, update time stamps and the stream size. */
329			status = _fx_directory_exFAT_entry_write(media_ptr, &search_directory, UPDATE_STREAM);
330			}
331
332			/* Check for a bad status. */
333			if (status != FX_SUCCESS)
334			{
335
336			#ifdef FX_ENABLE_FAULT_TOLERANT
337			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
338			#endif /* FX_ENABLE_FAULT_TOLERANT */
339
340			/* Release media protection. */
341			FX_UNPROTECT
342
343			/* Return the bad status. */
344			return(status);
345			}
346			}
347			}
348			else
349			{
350			dir_entry.fx_dir_entry_dont_use_fat = 0;
351			}
352			#endif /* FX_ENABLE_EXFAT */
353
354			/* Now write out the directory entry. */
355			#ifdef FX_ENABLE_EXFAT
356			if (media_ptr -> fx_media_FAT_type == FX_exFAT)
357			{
358			status = _fx_directory_exFAT_entry_write(media_ptr, &dir_entry, UPDATE_FULL);
359			}
360			else
361			{
362			#endif /* FX_ENABLE_EXFAT */
363		54898	status = _fx_directory_entry_write(media_ptr, &dir_entry);
364			#ifdef FX_ENABLE_EXFAT
365			}
366			#endif /* FX_ENABLE_EXFAT */
367
368			#ifdef FX_ENABLE_FAULT_TOLERANT
369			/* Check for a bad status. */
370			if (status != FX_SUCCESS)
371			{
372
373			FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr);
374
375			/* Release media protection. */
376			FX_UNPROTECT
377
378			/* Return the bad status. */
379			return(status);
380			}
381
382			/* End transaction. */
383			status = _fx_fault_tolerant_transaction_end(media_ptr);
384			#endif /* FX_ENABLE_FAULT_TOLERANT */
385
386			/* Release media protection. */
387		54898	FX_UNPROTECT
388
389			/* File create is complete, return status. */
390		54898	return(status);
391			}
392