usr/src/cmd/mdb/common/modules/genunix/ddi_periodic.c

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11 /*
  12  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
  13  */
  14
  15 #include "ddi_periodic.h"
  16
  17 #include <mdb/mdb_modapi.h>
  18 #include <sys/ddi_periodic.h>
  19 #include <sys/sysmacros.h>
  20 #include <stdio.h>
  21
  22 /*ARGSUSED*/
  23 int
  24 dprinfo(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
  25 {
  26         char prflags[4];
  27         ddi_periodic_impl_t dpr;
  28         boolean_t verbose = B_FALSE;
  29
  30         if (!(flags & DCMD_ADDRSPEC)) {
  31                 if (mdb_walk_dcmd("ddi_periodic", "ddi_periodic", argc, argv)
  32                     == -1) {
  33                         mdb_warn("cannot walk 'ddi_periodic'");
  34                         return (DCMD_ERR);
  35                 }
  36                 return (DCMD_OK);
  37         }
  38
  39         if (mdb_getopts(argc, argv,
  40             'v', MDB_OPT_SETBITS, B_TRUE, &verbose, NULL) != argc)
  41                 return (DCMD_USAGE);
  42
  43         if (mdb_vread(&dpr, sizeof (dpr), addr) == -1) {
  44                 mdb_warn("could not read ddi_periodic_impl_t at %p", addr);
  45                 return (DCMD_ERR);
  46         }
  47
  48         if (DCMD_HDRSPEC(flags)) {
  49                 mdb_printf("%16s %4s %3s %5s %5s %12s %s\n", "ADDR", "ID",
  50                     "LVL", "FLAGS", "MS", "FIRE_COUNT", "HANDLER");
  51                 if (verbose) {
  52                         mdb_printf("%16s %16s %16s %s\n", "", "THREAD",
  53                             "CYCLIC_ID", "ARGUMENT");
  54                 }
  55         }
  56
  57         prflags[0] = dpr.dpr_flags & DPF_DISPATCHED ? 'D' : '-';
  58         prflags[1] = dpr.dpr_flags & DPF_EXECUTING ? 'X' : '-';
  59         prflags[2] = dpr.dpr_flags & DPF_CANCELLED ? 'C' : '-';
  60         prflags[3] = '\0';
  61
  62         mdb_printf("%16p %4x %3d %5s %5d %12x %a\n", addr, dpr.dpr_id,
  63             dpr.dpr_level, prflags, (int)(dpr.dpr_interval / 1000000),
  64             dpr.dpr_fire_count, dpr.dpr_handler);
  65         if (verbose) {
  66                 mdb_printf("%16s %16p %16p %a\n", "", dpr.dpr_thread,
  67                     dpr.dpr_cyclic_id, dpr.dpr_arg);
  68         }
  69
  70         return (DCMD_OK);
  71 }