usr/src/cmd/dtrace/test/tst/common/pragma/tst.temporal.ksh

   1 #!/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # This file and its contents are supplied under the terms of the
   6 # Common Development and Distribution License ("CDDL"), version 1.0.
   7 # You may only use this file in accordance with the terms of version
   8 # 1.0 of the CDDL.
   9 #
  10 # A full copy of the text of the CDDL should have accompanied this
  11 # source.  A copy of the CDDL is also available via the Internet at
  12 # http://www.illumos.org/license/CDDL.
  13 #
  14 # CDDL HEADER END
  15 #
  16
  17 #
  18 # Copyright (c) 2012 by Delphix. All rights reserved.
  19 #
  20
  21 ############################################################################
  22 # ASSERTION:
  23 #       temporal option causes output to be sorted
  24 #
  25 # SECTION: Pragma
  26 #
  27 # NOTES: The temporal option has no effect on a single-CPU system, so
  28 #    this needs to be run on a multi-CPU system to effectively test the
  29 #    temporal option.
  30 #
  31 ############################################################################
  32
  33 if [ $# != 1 ]; then
  34         echo expected one argument: '<'dtrace-path'>'
  35         exit 2
  36 fi
  37
  38 dtrace=$1
  39 file=/tmp/out.$$
  40
  41 rm -f $file
  42
  43 $dtrace -o $file -c 'sleep 3' -s /dev/stdin <<EOF
  44         #pragma D option quiet
  45         #pragma D option temporal
  46
  47         BEGIN
  48         {
  49                 @lines = count();
  50                 printf("0 begin\n");
  51         }
  52
  53         END
  54         {
  55                 /* Bump @lines every time we print a line. */
  56                 @lines = count();
  57                 printf("%u end\n", timestamp);
  58                 @lines = count();
  59                 printa("99999999999999999 lines %@u\n", @lines);
  60         }
  61
  62         profile-97hz
  63         {
  64                 @lines = count();
  65                 printf("%u\n", timestamp);
  66         }
  67 EOF
  68
  69 status=$?
  70 if [ "$status" -ne 0 ]; then
  71         echo $tst: dtrace failed
  72         exit $status
  73 fi
  74
  75 # dtrace outputs a blank line at the end, which will sort to the beginning,
  76 # so use head to remove the blank line.
  77 head -n -1 $file > $file.2
  78
  79 sort -n $file.2 | diff $file.2 -
  80 status=$?
  81 if [ "$status" -ne 0 ]; then
  82         echo $tst: output is not sorted
  83         exit $status
  84 fi
  85
  86 head -n 1 $file.2 | grep begin >/dev/null
  87 status=$?
  88 if [ "$status" -ne 0 ]; then
  89         echo $tst: begin probe did not fire
  90         exit $status
  91 fi
  92
  93 tail -n 2 $file.2 | grep end >/dev/null
  94 status=$?
  95 if [ "$status" -ne 0 ]; then
  96         echo $tst: end probe did not fire
  97         exit $status
  98 fi
  99
 100 if [ $(tail -n 1 $file.2 | cut -f3 -d ' ') -ne \
 101     $(wc -l $file.2) ]; then
 102         echo $tst: incorrect number of lines output
 103         exit 1
 104 fi
 105
 106 exit $status