1 # collectd - Collectd.pm
2 # Copyright (C) 2007 Sebastian Harl
4 # This program is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License as published by the
6 # Free Software Foundation; only version 2 of the License is applicable.
8 # This program is distributed in the hope that it will be useful, but
9 # WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 # General Public License for more details.
13 # You should have received a copy of the GNU General Public License along
14 # with this program; if not, write to the Free Software Foundation, Inc.,
15 # 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 # Sebastian Harl <sh at tokkee.org>
28 if (! $Config{'useithreads'}) {
29 die "Perl does not support ithreads!";
35 our @ISA = qw( Exporter );
41 plugin_dispatch_values
72 push @{$EXPORT_TAGS{'all'}}, grep {! $seen{$_}++ } @{$EXPORT_TAGS{$_}}
73 foreach keys %EXPORT_TAGS;
76 Exporter::export_ok_tags ('all');
85 TYPE_SHUTDOWN, "shutdown",
89 foreach my $type (keys %types) {
98 if ("Collectd" eq $caller) {
101 return plugin_log ($lvl, $msg);
104 sub ERROR { _log (scalar caller, LOG_ERR, shift); }
105 sub WARNING { _log (scalar caller, LOG_WARNING, shift); }
106 sub NOTICE { _log (scalar caller, LOG_NOTICE, shift); }
107 sub INFO { _log (scalar caller, LOG_INFO, shift); }
108 sub DEBUG { _log (scalar caller, LOG_DEBUG, shift); }
110 sub plugin_call_all {
113 if (! defined $type) {
117 if (TYPE_LOG != $type) {
118 DEBUG ("Collectd::plugin_call: type = \"$type\", args=\"@_\"");
121 if (! defined $plugins[$type]) {
122 ERROR ("Collectd::plugin_call: unknown type \"$type\"");
126 foreach my $plugin (keys %{$plugins[$type]}) {
127 my $p = $plugins[$type]->{$plugin};
129 if ($p->{'wait_left'} > 0) {
130 # TODO: use interval_g
131 $p->{'wait_left'} -= 10;
134 next if ($p->{'wait_left'} > 0);
136 if (my $status = $p->{'code'}->(@_)) {
137 $p->{'wait_left'} = 0;
138 $p->{'wait_time'} = 10;
140 elsif (TYPE_READ == $type) {
141 $p->{'wait_left'} = $p->{'wait_time'};
142 $p->{'wait_time'} *= 2;
144 if ($p->{'wait_time'} > 86400) {
145 $p->{'wait_time'} = 86400;
148 WARNING ("${plugin}->read() failed with status $status. "
149 . "Will suspend it for $p->{'wait_left'} seconds.");
151 elsif (TYPE_INIT == $type) {
152 foreach my $type (keys %types) {
153 plugin_unregister ($type, $plugin);
156 ERROR ("${plugin}->init() failed with status $status. "
157 . "Plugin will be disabled.");
159 elsif (TYPE_LOG != $type) {
160 WARNING ("${plugin}->$types{$type}() failed with status $status.");
166 # Collectd::plugin_register (type, name, data).
169 # init, read, write, shutdown, data set
175 # reference to the plugin's subroutine that does the work or the data set
177 sub plugin_register {
182 DEBUG ("Collectd::plugin_register: "
183 . "type = \"$type\", name = \"$name\", data = \"$data\"");
185 if (! ((defined $type) && (defined $name) && (defined $data))) {
186 ERROR ("Usage: Collectd::plugin_register (type, name, data)");
190 if ((! defined $plugins[$type]) && (TYPE_DATASET != $type)) {
191 ERROR ("Collectd::plugin_register: Invalid type \"$type\"");
195 if ((TYPE_DATASET == $type) && ("ARRAY" eq ref $data)) {
196 return plugin_register_data_set ($name, $data);
198 elsif ("CODE" eq ref $data) {
199 # TODO: make interval_g available at configuration time
200 $plugins[$type]->{$name} = {
207 ERROR ("Collectd::plugin_register: Invalid data.");
213 sub plugin_unregister {
217 DEBUG ("Collectd::plugin_unregister: type = \"$type\", name = \"$name\"");
219 if (! ((defined $type) && (defined $name))) {
220 ERROR ("Usage: Collectd::plugin_unregister (type, name)");
224 if (TYPE_DATASET == $type) {
225 return plugin_unregister_data_set ($name);
227 elsif (defined $plugins[$type]) {
228 delete $plugins[$type]->{$name};
231 ERROR ("Collectd::plugin_unregister: Invalid type.");
238 # vim: set sw=4 ts=4 tw=78 noexpandtab :