Current File : //usr/share/mysql-test/lib/v1/mtr_io.pl
# -*- cperl -*-
# Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation. The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# This is a library file used by the Perl version of mysql-test-run,
# and is part of the translation of the Bourne shell script with the
# same name.
use strict;
sub mtr_get_pid_from_file ($);
sub mtr_get_opts_from_file ($);
sub mtr_fromfile ($);
sub mtr_tofile ($@);
sub mtr_tonewfile($@);
sub mtr_lastlinefromfile($);
sub mtr_appendfile_to_file ($$);
sub mtr_grab_file($);
##############################################################################
#
#
#
##############################################################################
sub mtr_get_pid_from_file ($) {
my $pid_file_path= shift;
my $TOTAL_ATTEMPTS= 30;
my $timeout= 1;
# We should read from the file until we get correct pid. As it is
# stated in BUG#21884, pid file can be empty at some moment. So, we should
# read it until we get valid data.
for (my $cur_attempt= 1; $cur_attempt <= $TOTAL_ATTEMPTS; ++$cur_attempt)
{
mtr_debug("Reading pid file '$pid_file_path' " .
"($cur_attempt of $TOTAL_ATTEMPTS)...");
open(FILE, '<', $pid_file_path)
or mtr_error("can't open file \"$pid_file_path\": $!");
# Read pid number from file
my $pid= <FILE>;
chomp $pid;
close FILE;
return $pid if $pid=~ /^(\d+)/;
mtr_debug("Pid file '$pid_file_path' does not yet contain pid number.\n" .
"Sleeping $timeout second(s) more...");
sleep($timeout);
}
mtr_error("Pid file '$pid_file_path' is corrupted. " .
"Can not retrieve PID in " .
($timeout * $TOTAL_ATTEMPTS) . " seconds.");
}
sub mtr_get_opts_from_file ($) {
my $file= shift;
open(FILE,"<",$file) or mtr_error("can't open file \"$file\": $!");
my @args;
while ( <FILE> )
{
chomp;
# --init_connect=set @a='a\\0c'
s/^\s+//; # Remove leading space
s/\s+$//; # Remove ending space
# This is strange, but we need to fill whitespace inside
# quotes with something, to remove later. We do this to
# be able to split on space. Else, we have trouble with
# options like
#
# --someopt="--insideopt1 --insideopt2"
#
# But still with this, we are not 100% sure it is right,
# we need a shell to do it right.
# print STDERR "\n";
# print STDERR "AAA: $_\n";
s/\'([^\'\"]*)\'/unspace($1,"\x0a")/ge;
s/\"([^\'\"]*)\"/unspace($1,"\x0b")/ge;
s/\'([^\'\"]*)\'/unspace($1,"\x0a")/ge;
s/\"([^\'\"]*)\"/unspace($1,"\x0b")/ge;
# print STDERR "BBB: $_\n";
# foreach my $arg (/(--?\w.*?)(?=\s+--?\w|$)/)
# FIXME ENV vars should be expanded!!!!
foreach my $arg (split(/[ \t]+/))
{
$arg =~ tr/\x11\x0a\x0b/ \'\"/; # Put back real chars
# The outermost quotes has to go
$arg =~ s/^([^\'\"]*)\'(.*)\'([^\'\"]*)$/$1$2$3/
or $arg =~ s/^([^\'\"]*)\"(.*)\"([^\'\"]*)$/$1$2$3/;
$arg =~ s/\\\\/\\/g;
$arg =~ s/\$\{(\w+)\}/envsubst($1)/ge;
$arg =~ s/\$(\w+)/envsubst($1)/ge;
# print STDERR "ARG: $arg\n";
# Do not pass empty string since my_getopt is not capable to handle it.
if (length($arg))
{
push(@args, $arg)
}
}
}
close FILE;
return \@args;
}
sub envsubst {
my $string= shift;
if ( ! defined $ENV{$string} )
{
mtr_error("opt file referense \$$string that is unknown");
}
return $ENV{$string};
}
sub unspace {
my $string= shift;
my $quote= shift;
$string =~ s/[ \t]/\x11/g;
return "$quote$string$quote";
}
# Read a whole file, stripping leading and trailing whitespace.
sub mtr_fromfile ($) {
my $file= shift;
open(FILE,"<",$file) or mtr_error("can't open file \"$file\": $!");
my $text= join('', <FILE>);
close FILE;
$text =~ s/^\s+//; # Remove starting space, incl newlines
$text =~ s/\s+$//; # Remove ending space, incl newlines
return $text;
}
sub mtr_lastlinefromfile ($) {
my $file= shift;
my $text;
open(FILE,"<",$file) or mtr_error("can't open file \"$file\": $!");
while (my $line= <FILE>)
{
$text= $line;
}
close FILE;
return $text;
}
sub mtr_tofile ($@) {
my $file= shift;
open(FILE,">>",$file) or mtr_error("can't open file \"$file\": $!");
print FILE join("", @_);
close FILE;
}
sub mtr_tonewfile ($@) {
my $file= shift;
open(FILE,">",$file) or mtr_error("can't open file \"$file\": $!");
print FILE join("", @_);
close FILE;
}
sub mtr_appendfile_to_file ($$) {
my $from_file= shift;
my $to_file= shift;
open(TOFILE,">>",$to_file) or mtr_error("can't open file \"$to_file\": $!");
open(FROMFILE,"<",$from_file)
or mtr_error("can't open file \"$from_file\": $!");
print TOFILE while (<FROMFILE>);
close FROMFILE;
close TOFILE;
}
# Read a whole file verbatim.
sub mtr_grab_file($) {
my $file= shift;
open(FILE, '<', $file)
or return undef;
local $/= undef;
my $data= scalar(<FILE>);
close FILE;
return $data;
}
1;
Mini Shell