94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
// Mgmt
|
|
// Copyright (C) 2013-2024+ James Shubin and the project contributors
|
|
// Written by James Shubin <james@shubin.ca> and the project contributors
|
|
//
|
|
// 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
package coresys
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"github.com/purpleidea/mgmt/lang/funcs/facts"
|
|
"github.com/purpleidea/mgmt/lang/types"
|
|
"github.com/purpleidea/mgmt/util/errwrap"
|
|
)
|
|
|
|
const (
|
|
// UptimeFuncName is the name this fact is registered as. It's still a
|
|
// Func Name because this is the name space the fact is actually using.
|
|
UptimeFuncName = "uptime"
|
|
)
|
|
|
|
func init() {
|
|
facts.ModuleRegister(ModuleName, UptimeFuncName, func() facts.Fact { return &UptimeFact{} })
|
|
}
|
|
|
|
// UptimeFact is a fact which returns the current uptime of your system.
|
|
type UptimeFact struct {
|
|
init *facts.Init
|
|
}
|
|
|
|
// String returns a simple name for this fact. This is needed so this struct can
|
|
// satisfy the pgraph.Vertex interface.
|
|
func (obj *UptimeFact) String() string {
|
|
return UptimeFuncName
|
|
}
|
|
|
|
// Info returns some static info about itself.
|
|
func (obj *UptimeFact) Info() *facts.Info {
|
|
return &facts.Info{
|
|
Output: types.TypeInt,
|
|
}
|
|
}
|
|
|
|
// Init runs some startup code for this fact.
|
|
func (obj *UptimeFact) Init(init *facts.Init) error {
|
|
obj.init = init
|
|
return nil
|
|
}
|
|
|
|
// Stream returns the changing values that this fact has over time.
|
|
func (obj *UptimeFact) Stream(ctx context.Context) error {
|
|
defer close(obj.init.Output)
|
|
ticker := time.NewTicker(time.Duration(1) * time.Second)
|
|
|
|
startChan := make(chan struct{})
|
|
close(startChan)
|
|
defer ticker.Stop()
|
|
for {
|
|
select {
|
|
case <-startChan:
|
|
startChan = nil
|
|
case <-ticker.C:
|
|
// send
|
|
case <-ctx.Done():
|
|
return nil
|
|
}
|
|
|
|
uptime, err := uptime()
|
|
if err != nil {
|
|
return errwrap.Wrapf(err, "could not read uptime value")
|
|
}
|
|
|
|
select {
|
|
case obj.init.Output <- &types.IntValue{V: uptime}:
|
|
// send
|
|
case <-ctx.Done():
|
|
return nil
|
|
}
|
|
}
|
|
}
|