Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** 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; either version 2 of the License, or

** (at your option) any later version.

**

** 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

package alias

​

import (

    "fmt"

    "strings"

​

    "zabbix.com/internal/agent"

)

​

// addPerfCounterAliases adds performance counter metrics defined by PerfCounter,

// PerfCounterEn parameters as aliases to perf_counter, perf_counter_en metrics.

func (m *Manager) addPerfCounterAliases(key string, aliases []string) (err error) {

    for _, data := range aliases {

        s := strings.SplitN(data, ",", 2)

        if len(s) != 2 {

            return fmt.Errorf(`cannot add performance counter alias "%s"`, data)

        }

        for _, alias := range m.aliases {

            if alias.name == s[0] {

                return fmt.Errorf("failed to add Alias \"%s\": duplicate name", s[0])

            }

        }

        m.aliases = append(m.aliases, keyAlias{name: s[0], key: fmt.Sprintf("%s[%s]", key, s[1])})

    }

    return nil

}

​

func (m *Manager) initialize(options *agent.AgentOptions) (err error) {

    if err = m.addAliases(options.Alias); err != nil {

        return

    }

    if err = m.addPerfCounterAliases("perf_counter", options.PerfCounter); err != nil {

        return

    }

    if err = m.addPerfCounterAliases("perf_counter_en", options.PerfCounterEn); err != nil {

        return

    }

    return

}