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patch 8.1.0313: information about a swap file is unavailable

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Problem:    Information about a swap file is unavailable.
Solution:   Add swapinfo(). (Enzo Ferber)
This commit is contained in:
Bram Moolenaar
2018-08-21 20:28:54 +02:00
parent 8e82c057ff
commit 00f123a565
6 changed files with 110 additions and 1 deletions
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43
src/memline.c
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@@ -2041,6 +2041,49 @@ make_percent_swname(char_u *dir, char_u *name)
static int process_still_running;
#endif
/*
* Return information found in swapfile "fname" in dictionary "d".
* This is used by the swapinfo() function.
*/
void
get_b0_dict(char_u *fname, dict_T *d)
{
int fd;
struct block0 b0;
if ((fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0)
{
if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0))
{
if (b0_magic_wrong(&b0))
{
dict_add_string(d, "error",
vim_strsave((char_u *)"magic number mismatch"));
}
else
{
/* we have swap information */
dict_add_string(d, "version", vim_strsave(b0.b0_version));
dict_add_string(d, "user", vim_strsave(b0.b0_uname));
dict_add_string(d, "host", vim_strsave(b0.b0_hname));
dict_add_string(d, "fname", vim_strsave(b0.b0_fname));
dict_add_number(d, "pid", char_to_long(b0.b0_pid));
dict_add_number(d, "mtime", char_to_long(b0.b0_mtime));
#ifdef CHECK_INODE
dict_add_number(d, "inode", char_to_long(b0.b0_ino));
#endif
}
}
else
dict_add_string(d, "error",
vim_strsave((char_u *)"Cannot read file"));
close(fd);
}
else
dict_add_string(d, "error", vim_strsave((char_u *)"Cannot open file"));
}
/*
* Give information about an existing swap file.
* Returns timestamp (0 when unknown).