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format_proc_swaps: ensure space between fields for clarity

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page/swap space name >= 40 or size/used >= 8 leaves no space between fields;
ensure a space after name and add extra tabs after size and used fields;
output appears like Linux 5.8 after changes to mm/swapfile(swap_show);

proc-swaps-space-before.log:
==> /proc/swaps <==
Filename				Type		Size	Used	Priority
/mnt/c/pagefile.sys                     file            11567748292920  0
/mnt/d/pagefile.sys                     file            12582912205960  0

proc-swaps-space-after.log:
==> /proc/swaps <==
Filename				Type		Size		Used		Priority
/mnt/c/pagefile.sys			file		11567748	241024		0
/mnt/d/pagefile.sys			file		12582912	182928		0
This commit is contained in:
Brian Inglis 2021-04-30 07:19:20 -06:00 committed by Corinna Vinschen
parent 715c4208e4
commit 6914b40c14
1 changed files with 12 additions and 3 deletions
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15
winsup/cygwin/fhandler_proc.cc
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@ -1920,7 +1920,7 @@ format_proc_swaps (void *, char *&destbuf)
}
bufptr += __small_sprintf (bufptr,
"Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
"Filename\t\t\t\tType\t\tSize\t\tUsed\t\tPriority\n");
if (spi && NT_SUCCESS (status))
{
@ -1932,8 +1932,17 @@ format_proc_swaps (void *, char *&destbuf)
used = (unsigned long long) spp->TotalUsed * wincap.page_size ();
cygwin_conv_path (CCP_WIN_W_TO_POSIX, spp->FileName.Buffer,
filename, NT_MAX_PATH);
bufptr += sprintf (bufptr, "%-40s%-16s%-8llu%-8llu%-8d\n",
filename, "file", total >> 10, used >> 10, 0);
/* ensure space between fields for clarity */
size_t tabo = strlen (filename) / 8; /* offset tabs to space name */
bufptr += sprintf (bufptr, "%s%s%s\t\t%llu%s\t%llu%s\t%d\n",
filename,
tabo < 5 ? "\t\t\t\t\t" + tabo : " ",
"file",
total >> 10,
total < 10000000000 ? "\t" : "",
used >> 10,
used < 10000000000 ? "\t" : "",
0);
}
while (spp->NextEntryOffset
&& (spp = (PSYSTEM_PAGEFILE_INFORMATION)