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by brian
clean slate |
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#!@PERL@
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# Copyright (C) 2000-2002, 2004 MySQL AB
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# This is a utility for MySQL. It is not needed by any standard part
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# of MySQL.
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# Usage: mysql_zap [-signal] [-f] [-t] pattern
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# Configuration parameters.
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$sig = ""; # Default to try all signals |
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$ans = "y"; |
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$opt_f= 0; |
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$opt_t= 0; |
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$opt_a = ""; |
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$BSD = -f '/vmunix' || $ENV{"OS"} eq "SunOS4" || $^O eq 'darwin'; |
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$LINUX = $^O eq 'linux'; |
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$pscmd = $BSD ? "/bin/ps -auxww" : $LINUX ? "/bin/ps axuw" : "/bin/ps -ef"; |
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open(TTYIN, "</dev/tty") || die "can't read /dev/tty: $!"; |
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open(TTYOUT, ">/dev/tty") || die "can't write /dev/tty: $!"; |
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select(TTYOUT); |
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$| = 1; |
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select(STDOUT); |
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$SIG{'INT'} = 'cleanup'; |
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while ($#ARGV >= $[ && $ARGV[0] =~ /^-/) { |
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if ($ARGV[0] =~ /(ZERO|HUP|INT|QUIT|ILL|TRAP|ABRT|EMT|FPE|KILL|BUS|SEGV|SYS|PIPE|ALRM|TERM|URG|STOP|TSTP|CONT|CLD|TTIN|TTOU|IO|XCPU|XFSZ|VTALRM|PROF|WINCH|LOST|USR1|USR2)/ || $ARGV[0] =~ /-(\d+)$/) { |
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$sig = $1; |
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} elsif ($ARGV[0] eq "-f") { |
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$opt_f=1; |
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} elsif ($ARGV[0] eq "-t") { |
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$opt_t=1; |
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$ans = "n"; |
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}
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elsif ($ARGV[0] eq "-a") |
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{
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$opt_a = 1; |
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}
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elsif ($ARGV[0] eq "-?" || $ARGV[0] eq "-I" || $ARGV[0] eq "--help") |
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{
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&usage; |
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}
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else { |
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print STDERR "$0: illegal argument $ARGV[0] ignored\n"; |
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}
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shift;
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}
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&usage if $#ARGV < 0; |
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if (!$opt_f) |
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{
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if ($BSD) { |
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system "stty cbreak </dev/tty >/dev/tty 2>&1"; |
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}
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else { |
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system "stty", 'cbreak', |
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system "stty", 'eol', '^A'; |
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}
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}
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open(PS, "$pscmd|") || die "can't run $pscmd: $!"; |
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$title = <PS>; |
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print TTYOUT $title; |
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# Catch any errors with eval. A bad pattern, for instance.
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eval <<'EOF'; |
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process: while ($cand = <PS>)
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{
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chop($cand);
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($user, $pid) = split(' ', $cand);
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next if $pid == $$;
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$found = !@ARGV;
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if ($opt_a) { $found = 1; }
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foreach $pat (@ARGV)
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{
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if ($opt_a)
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{
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if (! ($cand =~ $pat))
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{
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next process;
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}
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}
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else
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{
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$found = 1 if $cand =~ $pat;
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}
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}
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next if (!$found);
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if (! $opt_f && ! $opt_t)
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{
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print TTYOUT "$cand? ";
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read(TTYIN, $ans, 1);
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print TTYOUT "\n" if ($ans ne "\n");
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}
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else
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{
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print TTYOUT "$cand\n";
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}
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if ($ans =~ /^y/i) { &killpid($sig, $pid); }
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if ($ans =~ /^q/i) { last; }
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}
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EOF
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&cleanup; |
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sub usage {
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print <<EOF;
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Usage: $0 [-signal] [-?Ift] [--help] pattern
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Options: -I or -? "info" -f "force" -t "test".
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Version 1.0
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Kill processes that match the pattern.
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If -f isn't given, ask user for confirmation for each process to kill.
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If signal isn't given, try first with signal 15, then with signal 9.
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If -t is given, the processes are only shown on stdout.
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EOF
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exit(1); |
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}
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sub cleanup {
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if ($BSD) { |
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system "stty -cbreak </dev/tty >/dev/tty 2>&1"; |
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}
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else { |
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system "stty", 'icanon'; |
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system "stty", 'eol', '^@'; |
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}
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print "\n"; |
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exit;
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}
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sub killpid {
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local($signal,$pid) = @_; |
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if ($signal) |
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{
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kill $signal,$pid; |
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}
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else
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{
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print "kill -15\n"; |
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kill 15, $pid; |
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for (1..5) { |
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sleep 2; |
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return if kill(0, $pid) == 0; |
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}
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print "kill -9\n"; |
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kill 9, $pid; |
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for (1..5) { |
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sleep 2; |
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return if kill(0, $pid) == 0; |
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}
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print "$pid will not die!\n"; |
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}
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}
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