1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
package NDB::Net::Env;
use strict;
use File::Spec;
use Carp;
require NDB::Net::Base;
use vars qw(@ISA);
@ISA = qw(NDB::Net::Base);
# environment variables
#
# NDB_TOP source dir or installation dir
# NDB_BASE base dir not tied to any release or database
# NDB_NETCFG ndbnet config file, default $NDB_BASE/etc/ndbnet.xml
#
# ndbnet explicitly unsets NDB_TOP and NDB_HOME because they are
# specific to each database or database node
# constructors
my $log;
sub initmodule {
$log = NDB::Util::Log->instance;
}
NDB::Net::Env->attributes(
base => sub { /^\S+$/ },
netcfg => sub { /^\S+$/ },
hostname => sub { /^\S+$/ },
);
my $instance;
sub desc {
my $netenv = shift;
return "net environment";;
}
sub instance {
my $class = shift;
@_ % 2 == 0 or confess 0+@_;
my(%attr) = @_;
if ($instance) {
return $instance;
}
for my $var (qw(NDB_TOP NDB_HOME)) {
my $top = delete $ENV{$var};
if (defined($top)) {
if ($^O ne 'MSWin32') {
$ENV{PATH} =~ s!(^|:)$top/bin($|:)!$1$2!g;
$ENV{LD_LIBRARY_PATH} =~ s!(^|:)$top/lib($|:)!$1$2!g;
$ENV{PERL5LIB} =~ s!(^|:)$top/lib/perl5($|:)!$1$2!g;
}
}
}
my $netenv = $class->SUPER::new(%attr);
for my $base ($attr{base}, $ENV{NDB_BASE}) {
if (defined($base)) {
$netenv->setbase($base)
or $log->push, return undef;
}
}
for my $netcfg ($attr{netcfg}, $ENV{NDB_NETCFG}) {
if (defined($netcfg)) {
$netenv->setnetcfg($netcfg)
or $log->push, return undef;
}
}
if ($netenv->hasbase && ! $netenv->hasnetcfg) {
$netenv->setnetcfg(File::Spec->catfile($netenv->getbase, "etc", "ndbnet.xml"))
or $log->push, return undef;
}
my $uname;
if ($^O ne 'MSWin32') {
chomp($uname = `uname -n`);
} else {
chomp($uname = `hostname`);
}
my($hostname) = gethostbyname($uname);
if (! defined($hostname)) {
$uname =~ s!\..*$!!;
($hostname) = gethostbyname($uname);
}
$netenv->sethostname($hostname)
or $log->push, return undef;
$instance = $netenv;
return $instance;
}
1;
# vim:set sw=4:
|
