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160 lines
3.3 KiB
Perl
160 lines
3.3 KiB
Perl
# -*- cperl -*-
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# Copyright (C) 2004-2006 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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package My::Platform;
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use strict;
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use File::Basename;
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use File::Path;
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use base qw(Exporter);
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our @EXPORT= qw(IS_CYGWIN IS_WINDOWS IS_WIN32PERL
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native_path posix_path mixed_path
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check_socket_path_length process_alive);
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BEGIN {
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if ($^O eq "cygwin") {
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# Make sure cygpath works
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if ((system("cygpath > /dev/null 2>&1") >> 8) != 1){
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die "Could not execute 'cygpath': $!";
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}
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eval 'sub IS_CYGWIN { 1 }';
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}
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else {
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eval 'sub IS_CYGWIN { 0 }';
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}
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if ($^O eq "MSWin32") {
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eval 'sub IS_WIN32PERL { 1 }';
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}
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else {
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eval 'sub IS_WIN32PERL { 0 }';
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}
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}
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BEGIN {
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if (IS_CYGWIN or IS_WIN32PERL) {
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eval 'sub IS_WINDOWS { 1 }';
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}
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else {
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eval 'sub IS_WINDOWS { 0 }';
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}
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}
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#
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# native_path
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# Convert from path format used by perl to the underlying
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# operating systems format
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#
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# NOTE
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# Used when running windows binaries (that expect windows paths)
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# in cygwin perl (that uses unix paths)
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#
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use Memoize;
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if (!IS_WIN32PERL){
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memoize('mixed_path');
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memoize('native_path');
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memoize('posix_path');
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}
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sub mixed_path {
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my ($path)= @_;
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if (IS_CYGWIN){
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return unless defined $path;
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my $cmd= "cygpath -m $path";
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$path= `$cmd` or
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print "Failed to run: '$cmd', $!\n";
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chomp $path;
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}
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return $path;
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}
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sub native_path {
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my ($path)= @_;
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$path=~ s/\//\\/g
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if (IS_CYGWIN or IS_WIN32PERL);
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return $path;
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}
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sub posix_path {
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my ($path)= @_;
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if (IS_CYGWIN){
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return unless defined $path;
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$path= `cygpath $path`;
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chomp $path;
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}
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return $path;
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}
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sub check_socket_path_length {
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my ($path)= @_;
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my $truncated= 0;
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return 0 if IS_WINDOWS;
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require IO::Socket::UNIX;
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my $sock;
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eval {
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# Create the directories where the
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# socket till be created
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mkpath(dirname($path));
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$sock= new IO::Socket::UNIX
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(
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Local => $path,
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Listen => 1,
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);
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};
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if ($@)
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{
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print $@, '\n';
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return 2;
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}
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if (!defined $sock){
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#print "Could not create UNIX domain socket: $!\n";
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return 3;
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}
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if ($path ne $sock->hostpath()){
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# Path was truncated
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$truncated= 1;
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# Output diagnostic messages
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print "path: '$path', length: ", length($path) ,"\n";
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print "hostpath: '", $sock->hostpath(),
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"', length: ", length($sock->hostpath()), "\n";
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}
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$sock= undef; # Close socket
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unlink($path); # Remove the physical file
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return $truncated;
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}
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sub process_alive {
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my ($pid)= @_;
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die "usage: process_alive(pid)" unless $pid;
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return kill(0, $pid) unless IS_WINDOWS;
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my @list= split(/,/, `tasklist /FI "PID eq $pid" /NH /FO CSV`);
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my $ret_pid= eval($list[1]);
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return ($ret_pid == $pid);
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}
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1;
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