to display list of the advisory file locks in the system. Example output $ procstat advlock RW TYPE PID SYSID FSID RDEV INO START LEN PATH RO FCNTL 5836 0 0x878700ff02 0xffffffffffffffff 57 0 0 /tmp/2 RW FLOCK -1 0 0x878700ff02 0xffffffffffffffff 13 0 0 /tmp/1 Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D34834
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2022 The FreeBSD Foundation
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*
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* Portions of this software were developed by Konstantin Belousov
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <err.h>
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#include <libprocstat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "procstat.h"
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void
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procstat_advlocks(struct procstat *prstat, struct kinfo_proc *kipp __unused)
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{
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struct advlock_list *advl;
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struct advlock *a;
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static const char advisory_lock_item[] = "advisory_lock";
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if ((procstat_opts & PS_OPT_NOHEADER) == 0)
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xo_emit("{T:/%2s %5s %5s %5s %18s %18s %8s %9s %9s %s}\n",
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"RW", "TYPE", "PID", "SYSID", "FSID", "RDEV", "INO",
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"START", "LEN", "PATH");
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xo_open_list(advisory_lock_item);
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advl = procstat_getadvlock(prstat);
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if (advl == NULL) {
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xo_close_list(advisory_lock_item);
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return;
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}
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STAILQ_FOREACH(a, advl, next) {
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xo_open_instance(advisory_lock_item);
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switch (a->rw) {
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case PS_ADVLOCK_RO:
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xo_emit("{:rw/%s} ", "RO");
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break;
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case PS_ADVLOCK_RW:
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xo_emit("{:rw/%s} ", "RW");
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break;
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default:
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xo_emit("{:rw/%s} ", "??");
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break;
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}
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switch (a->type) {
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case PS_ADVLOCK_TYPE_FLOCK:
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xo_emit("{:type/%s} ", "FLOCK");
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break;
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case PS_ADVLOCK_TYPE_PID:
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xo_emit("{:type/%s} ", "FCNTL");
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break;
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case PS_ADVLOCK_TYPE_REMOTE:
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xo_emit("{:type/%s} ", "LOCKD");
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break;
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default:
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xo_emit("{:type/%s} ", "?????");
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break;
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}
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xo_emit("{:pid/%5d} ", a->pid);
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xo_emit("{:sysid/%5d} ", a->sysid);
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xo_emit("{:fsid/%18#jx} ", (uintmax_t)a->file_fsid);
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xo_emit("{:rdev/%#18jx} ", (uintmax_t)a->file_rdev);
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xo_emit("{:ino/%8ju} ", (uintmax_t)a->file_fileid);
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xo_emit("{:start/%9ju} ", (uintmax_t)a->start);
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xo_emit("{:len/%9ju} ", (uintmax_t)a->len);
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xo_emit("{:path/%s}", a->path == NULL ? "" : a->path);
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xo_emit("\n");
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xo_close_instance(advisory_lock_item);
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}
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xo_close_list(advisory_lock_item);
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procstat_freeadvlock(prstat, advl);
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}
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