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Let merge_file_changes operate directly on the other SFTs.

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dos_setfattr with SHARE now closes open SFTs referring to that file
in compat mode.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1403 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2009-05-26 18:23:35 +00:00
parent 386fc961e3
commit 4a81e6e9a2
2 changed files with 38 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/dosfns.c
View File

@ -1211,12 +1211,12 @@ COUNT DosSetFattr(BYTE FAR * name, UWORD attrp)
if (IsShareInstalled(TRUE))
{
/* XXX SHARE should ideally close the file if it is opened in
/* SHARE closes the file if it is opened in
* compatibility mode, else generate a critical error.
* Here just generate a critical error by opening in "rw compat"
* mode */
* Here generate a critical error by opening in "rw compat" mode */
if ((result = share_open_check(PriPathName, cu_psp, O_RDWR, 0)) < 0)
return result;
/* else dos_setfattr will close the file */
share_close_file(result);
}
return dos_setfattr(PriPathName, attrp);

69
kernel/fatfs.c
View File

@ -46,9 +46,8 @@ STATIC BOOL find_fname(f_node_ptr, char *, int);
/* /// Added - Ron Cemer */
STATIC void merge_file_changes(f_node_ptr fnp, int collect);
/* /// Added - Ron Cemer */
STATIC int is_same_file(f_node_ptr fnp1, f_node_ptr fnp2);
STATIC int is_same_file(f_node_ptr fnp, sft FAR *sftp);
/* /// Added - Ron Cemer */
STATIC void copy_file_changes(f_node_ptr src, f_node_ptr dst);
STATIC BOOL find_free(f_node_ptr);
STATIC int alloc_find_free(f_node_ptr fnp, char *path, char *fcbname);
STATIC VOID wipe_out(f_node_ptr);
@ -397,7 +396,7 @@ STATIC unsigned get_f_nodes_cnt(void)
}
/* /// Added - Ron Cemer */
/* If more than one f_node has a file open, and a write
/* If more than one SFT has a file open, and a write
occurs, this function must be called to propagate the
results of that write to the other f_nodes which have
that file open. Note that this function only has an
@ -407,7 +406,6 @@ STATIC unsigned get_f_nodes_cnt(void)
unless these instances were generated by dup() or dup2(). */
STATIC void merge_file_changes(f_node_ptr fnp, int collect)
{
f_node_ptr fnp2;
int i, fd;
unsigned f_nodes_cnt;
@ -415,19 +413,22 @@ STATIC void merge_file_changes(f_node_ptr fnp, int collect)
return;
fd = fnp->f_sft_idx;
fnp2 = &fnode[1];
f_nodes_cnt = get_f_nodes_cnt();
for (i = 0; i < f_nodes_cnt; i++)
{
if (i != fd && sft_to_fnode(fnp2, i) == SUCCESS && is_same_file(fnp, fnp2))
sft FAR *sftp = idx_to_sft(i);
if (i != fd && FP_OFF(sftp) != (size_t)-1 && is_same_file(fnp, sftp))
{
if (collect)
{
/* We're collecting file changes from any other
f_node which refers to this file. */
if (fnp2->f_mode != RDONLY)
SFT which refers to this file. */
if ((sftp->sft_mode & O_ACCMODE) != RDONLY)
{
copy_file_changes(fnp2, fnp);
setdstart(fnp->f_dpb, &fnp->f_dir, sftp->sft_stclust);
fnp->f_dir.dir_size = sftp->sft_size;
fnp->f_dir.dir_date = sftp->sft_date;
fnp->f_dir.dir_time = sftp->sft_time;
break;
}
}
@ -436,36 +437,23 @@ STATIC void merge_file_changes(f_node_ptr fnp, int collect)
/* We just made changes to this file, so we are
distributing these changes to the other f_nodes
which refer to this file. */
copy_file_changes(fnp, fnp2);
fnode_to_sft(fnp2, i);
sftp->sft_stclust = getdstart(fnp->f_dpb, &fnp->f_dir);
sftp->sft_size = fnp->f_dir.dir_size;
sftp->sft_date = fnp->f_dir.dir_date;
sftp->sft_time = fnp->f_dir.dir_time;
}
}
}
}
/* /// Added - Ron Cemer */
STATIC int is_same_file(f_node_ptr fnp1, f_node_ptr fnp2)
STATIC int is_same_file(f_node_ptr fnp, sft FAR *sftp)
{
return
(fnp1->f_dpb == fnp2->f_dpb)
&& (fcbmatch(fnp1->f_dir.dir_name, fnp2->f_dir.dir_name))
&& ((fnp1->f_dir.dir_attrib & D_VOLID) == 0)
&& ((fnp2->f_dir.dir_attrib & D_VOLID) == 0)
&& (fnp1->f_diridx == fnp2->f_diridx)
&& (fnp1->f_dirsector == fnp2->f_dirsector);
}
/* /// Added - Ron Cemer */
STATIC void copy_file_changes(f_node_ptr src, f_node_ptr dst)
{
dst->f_dir.dir_start = src->f_dir.dir_start;
#ifdef WITHFAT32
dst->f_dir.dir_start_high = src->f_dir.dir_start_high;
#endif
dst->f_dir.dir_size = src->f_dir.dir_size;
dst->f_dir.dir_date = src->f_dir.dir_date;
dst->f_dir.dir_time = src->f_dir.dir_time;
dst->f_dir.dir_attrib = src->f_dir.dir_attrib;
return fnp->f_dpb == sftp->sft_dcb
&& (fnp->f_dir.dir_attrib & D_VOLID) == 0
&& (sftp->sft_attrib & D_VOLID) == 0
&& fnp->f_diridx == sftp->sft_diridx
&& fnp->f_dirsector == sftp->sft_dirsector;
}
STATIC COUNT delete_dir_entry(f_node_ptr fnp)
@ -1843,8 +1831,21 @@ COUNT dos_setfattr(BYTE * name, UWORD attrp)
fnp->f_dir.dir_attrib |= attrp; /* JPP */
fnp->f_flags |= F_DMOD | F_DDATE;
/* should really close the file instead of merge */
merge_file_changes(fnp, FALSE);
/* close open files in compat mode, otherwise there was a critical error */
if (IsShareInstalled(FALSE)) {
int f_nodes_cnt = get_f_nodes_cnt();
int i;
for (i = 0; i < f_nodes_cnt; i++)
{
sft FAR *sftp = idx_to_sft(i);
if (FP_OFF(sftp) != (size_t)-1 && is_same_file(fnp, sftp)) {
int rc = DosCloseSft(i, FALSE);
if (rc != SUCCESS)
return rc;
}
}
}
dir_write(fnp);
dir_close(fnp);
return SUCCESS;