diff options
| author | Roland McGrath <roland@gnu.org> | 2002-03-24 03:17:24 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2002-03-24 03:17:24 +0000 |
| commit | 3460505239e0af2470813bb5ea711a01290b9667 (patch) | |
| tree | d958d1b5fbd9bd6ecf3e93204d113306956cd30d /tmpfs/tmpfs.c | |
| parent | 59c44966394a8d4bb814dc830b390aaf9287bdf5 (diff) | |
2002-03-23 Roland McGrath <roland@frob.com>
* tmpfs.c (parse_opt): Grok % suffix on number to mean percentage
of the machine's RAM.
Diffstat (limited to 'tmpfs/tmpfs.c')
| -rw-r--r-- | tmpfs/tmpfs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tmpfs/tmpfs.c b/tmpfs/tmpfs.c index b691f718..f10b9803 100644 --- a/tmpfs/tmpfs.c +++ b/tmpfs/tmpfs.c @@ -186,6 +186,25 @@ parse_opt (int key, char *arg, struct argp_state *state) case 'K': size <<= 10; break; + case '%': + { + /* Set as a percentage of the machine's physical memory. */ + struct vm_statistics vmstats; + error_t err = vm_statistics (mach_task_self (), &vmstats); + if (err) + { + argp_error (state, "cannot find total physical memory: %s", + strerror (err)); + return err; + } + size = round_page ((((vmstats.free_count + + vmstats.active_count + + vmstats.inactive_count + + vmstats.wire_count) + * vm_page_size) + * size + 99) / 100); + break; + } } size = (off_t) size; if (size < 0) |