240 lines
7.0 KiB
Go
240 lines
7.0 KiB
Go
// Mgmt
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// Copyright (C) 2013-2024+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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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, either version 3 of the License, or
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// (at your option) any later version.
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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, see <http://www.gnu.org/licenses/>.
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package coretest
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import (
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"context"
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"sync"
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"github.com/purpleidea/mgmt/lang/funcs/facts"
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"github.com/purpleidea/mgmt/lang/funcs/simple"
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"github.com/purpleidea/mgmt/lang/types"
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)
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const (
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// OneInstanceAFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceAFuncName = "one_instance_a"
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// OneInstanceBFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceBFuncName = "one_instance_b"
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// OneInstanceCFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceCFuncName = "one_instance_c"
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// OneInstanceDFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceDFuncName = "one_instance_d"
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// OneInstanceEFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceEFuncName = "one_instance_e"
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// OneInstanceFFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceFFuncName = "one_instance_f"
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// OneInstanceGFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceGFuncName = "one_instance_g"
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// OneInstanceHFuncName is the name this fact is registered as. It's
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// still a Func Name because this is the name space the fact is actually
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// using.
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OneInstanceHFuncName = "one_instance_h"
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msg = "hello"
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)
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func init() {
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oneInstanceAMutex = &sync.Mutex{}
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oneInstanceBMutex = &sync.Mutex{}
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oneInstanceCMutex = &sync.Mutex{}
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oneInstanceDMutex = &sync.Mutex{}
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oneInstanceEMutex = &sync.Mutex{}
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oneInstanceFMutex = &sync.Mutex{}
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oneInstanceGMutex = &sync.Mutex{}
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oneInstanceHMutex = &sync.Mutex{}
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facts.ModuleRegister(ModuleName, OneInstanceAFuncName, func() facts.Fact {
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return &OneInstanceFact{
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Name: OneInstanceAFuncName,
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Mutex: oneInstanceAMutex,
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Flag: &oneInstanceAFlag,
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}
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}) // must register the fact and name
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facts.ModuleRegister(ModuleName, OneInstanceCFuncName, func() facts.Fact {
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return &OneInstanceFact{
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Name: OneInstanceCFuncName,
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Mutex: oneInstanceCMutex,
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Flag: &oneInstanceCFlag,
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}
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})
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facts.ModuleRegister(ModuleName, OneInstanceEFuncName, func() facts.Fact {
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return &OneInstanceFact{
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Name: OneInstanceEFuncName,
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Mutex: oneInstanceEMutex,
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Flag: &oneInstanceEFlag,
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}
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})
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facts.ModuleRegister(ModuleName, OneInstanceGFuncName, func() facts.Fact {
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return &OneInstanceFact{
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Name: OneInstanceGFuncName,
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Mutex: oneInstanceGMutex,
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Flag: &oneInstanceGFlag,
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}
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})
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simple.ModuleRegister(ModuleName, OneInstanceBFuncName, &types.FuncValue{
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T: types.NewType("func() str"),
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V: func([]types.Value) (types.Value, error) {
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oneInstanceBMutex.Lock()
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if oneInstanceBFlag {
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panic("should not get called twice")
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}
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oneInstanceBFlag = true
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oneInstanceBMutex.Unlock()
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return &types.StrValue{V: msg}, nil
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},
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})
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simple.ModuleRegister(ModuleName, OneInstanceDFuncName, &types.FuncValue{
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T: types.NewType("func() str"),
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V: func([]types.Value) (types.Value, error) {
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oneInstanceDMutex.Lock()
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if oneInstanceDFlag {
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panic("should not get called twice")
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}
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oneInstanceDFlag = true
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oneInstanceDMutex.Unlock()
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return &types.StrValue{V: msg}, nil
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},
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})
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simple.ModuleRegister(ModuleName, OneInstanceFFuncName, &types.FuncValue{
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T: types.NewType("func() str"),
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V: func([]types.Value) (types.Value, error) {
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oneInstanceFMutex.Lock()
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if oneInstanceFFlag {
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panic("should not get called twice")
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}
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oneInstanceFFlag = true
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oneInstanceFMutex.Unlock()
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return &types.StrValue{V: msg}, nil
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},
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})
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simple.ModuleRegister(ModuleName, OneInstanceHFuncName, &types.FuncValue{
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T: types.NewType("func() str"),
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V: func([]types.Value) (types.Value, error) {
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oneInstanceHMutex.Lock()
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if oneInstanceHFlag {
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panic("should not get called twice")
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}
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oneInstanceHFlag = true
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oneInstanceHMutex.Unlock()
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return &types.StrValue{V: msg}, nil
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},
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})
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}
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var (
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oneInstanceAFlag bool
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oneInstanceBFlag bool
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oneInstanceCFlag bool
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oneInstanceDFlag bool
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oneInstanceEFlag bool
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oneInstanceFFlag bool
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oneInstanceGFlag bool
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oneInstanceHFlag bool
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oneInstanceAMutex *sync.Mutex
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oneInstanceBMutex *sync.Mutex
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oneInstanceCMutex *sync.Mutex
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oneInstanceDMutex *sync.Mutex
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oneInstanceEMutex *sync.Mutex
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oneInstanceFMutex *sync.Mutex
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oneInstanceGMutex *sync.Mutex
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oneInstanceHMutex *sync.Mutex
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)
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// OneInstanceFact is a fact which flips a bool repeatedly. This is an example
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// fact and is not meant for serious computing. This would be better served by a
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// flip function which you could specify an interval for.
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type OneInstanceFact struct {
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init *facts.Init
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Name string
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Mutex *sync.Mutex
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Flag *bool
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}
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// String returns a simple name for this fact. This is needed so this struct can
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// satisfy the pgraph.Vertex interface.
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func (obj *OneInstanceFact) String() string {
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return obj.Name
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}
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// Validate makes sure we've built our struct properly. It is usually unused for
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// normal facts that users can use directly.
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//func (obj *OneInstanceFact) Validate() error {
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// return nil
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//}
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// Info returns some static info about itself.
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func (obj *OneInstanceFact) Info() *facts.Info {
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return &facts.Info{
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Output: types.NewType("str"),
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}
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}
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// Init runs some startup code for this fact.
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func (obj *OneInstanceFact) Init(init *facts.Init) error {
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obj.init = init
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obj.init.Logf("Init of `%s` @ %p", obj.Name, obj)
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obj.Mutex.Lock()
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if *obj.Flag {
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panic("should not get called twice")
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}
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b := true
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obj.Flag = &b
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obj.Mutex.Unlock()
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return nil
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}
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// Stream returns the changing values that this fact has over time.
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func (obj *OneInstanceFact) Stream(ctx context.Context) error {
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obj.init.Logf("Stream of `%s` @ %p", obj.Name, obj)
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defer close(obj.init.Output) // always signal when we're done
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select {
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case obj.init.Output <- &types.StrValue{
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V: msg,
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}:
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case <-ctx.Done():
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return nil
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}
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return nil
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}
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