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# -*- cperl -*-
# Copyright (C) 2004-2006 MySQL AB
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# 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 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
package My::Platform;
use strict;
use base qw(Exporter);
our @EXPORT= qw(IS_CYGWIN IS_WINDOWS IS_WIN32PERL
native_path posix_path mixed_path
check_socket_path_length process_alive);
BEGIN {
if ($^O eq "cygwin") {
# Make sure cygpath works
if ((system("cygpath > /dev/null 2>&1") >> 8) != 1){
die "Could not execute 'cygpath': $!";
}
eval 'sub IS_CYGWIN { 1 }';
}
else {
eval 'sub IS_CYGWIN { 0 }';
}
if ($^O eq "MSWin32") {
eval 'sub IS_WIN32PERL { 1 }';
}
else {
eval 'sub IS_WIN32PERL { 0 }';
}
}
BEGIN {
if (IS_CYGWIN or IS_WIN32PERL) {
eval 'sub IS_WINDOWS { 1 }';
}
else {
eval 'sub IS_WINDOWS { 0 }';
}
}
#
# native_path
# Convert from path format used by perl to the underlying
# operating systems format
#
# NOTE
# Used when running windows binaries (that expect windows paths)
# in cygwin perl (that uses unix paths)
#
sub mixed_path {
my ($path)= @_;
if (IS_CYGWIN){
return unless defined $path;
$path= `cygpath -m $path`;
chomp $path;
}
return $path;
}
sub native_path {
my ($path)= @_;
$path=~ s/\//\\/g
if (IS_CYGWIN or IS_WIN32PERL);
return $path;
}
sub posix_path {
my ($path)= @_;
if (IS_CYGWIN){
return unless defined $path;
$path= `cygpath $path`;
chomp $path;
}
return $path;
}
sub check_socket_path_length {
my ($path)= @_;
my $truncated= 0;
return 0 if IS_WINDOWS;
require IO::Socket::UNIX;
my $sock = new IO::Socket::UNIX
(
Local => $path,
Listen => 1,
);
if (!defined $sock){
# Could not create a UNIX domain socket
return 0; # Ok, will not be used by mysqld either
}
if ($path ne $sock->hostpath()){
# Path was truncated
$truncated= 1;
# Output diagnostic messages
print "path: '$path', length: ", length($path) ,"\n";
print "hostpath: '", $sock->hostpath(),
"', length: ", length($sock->hostpath()), "\n";
}
$sock= undef; # Close socket
unlink($path); # Remove the physical file
return $truncated;
}
sub process_alive {
my ($pid)= @_;
die "usage: process_alive(pid)" unless $pid;
return kill(0, $pid) unless IS_WINDOWS;
my @list= split(/,/, `tasklist /FI "PID eq $pid" /NH /FO CSV`);
my $ret_pid= eval($list[1]);
return ($ret_pid == $pid);
}
1;
|
