/
listen.go
384 lines (359 loc) · 10.1 KB
/
listen.go
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package module
import (
"encoding/json"
"errors"
"fmt"
"github.com/devsapp/serverless-stable-diffusion-api/pkg/config"
"github.com/devsapp/serverless-stable-diffusion-api/pkg/datastore"
"github.com/devsapp/serverless-stable-diffusion-api/pkg/utils"
"github.com/sirupsen/logrus"
"io"
"io/ioutil"
"net/http"
"strings"
"sync"
"time"
)
type CallBack func(v any)
type ListenType int32
const (
CancelListen ListenType = iota
ModelListen
ConfigListen
)
const (
ConfigDefaultKey = "default"
)
// config change signal
type configSignal struct {
configStore datastore.Datastore
md5 string
config string
}
type TaskItem struct {
listenType ListenType
callBack CallBack
curVal any
}
// ListenDbTask listen db value change and call callback func
// for example: tasks cancel signal and models register/update
type ListenDbTask struct {
taskStore datastore.Datastore
modelStore datastore.Datastore
configStore datastore.Datastore
intervalSecond int32
tasks *sync.Map
stop chan struct{}
}
func NewListenDbTask(intervalSecond int32, taskStore datastore.Datastore,
modelStore datastore.Datastore, configStore datastore.Datastore) *ListenDbTask {
listenTask := &ListenDbTask{
taskStore: taskStore,
modelStore: modelStore,
configStore: configStore,
intervalSecond: intervalSecond,
tasks: new(sync.Map),
stop: make(chan struct{}),
}
go listenTask.init()
return listenTask
}
// init listen
func (l *ListenDbTask) init() {
for {
select {
case <-l.stop:
break
default:
// go on next
}
l.tasks.Range(func(key, value any) bool {
taskId := key.(string)
taskItem := value.(*TaskItem)
switch taskItem.listenType {
case CancelListen:
l.cancelTask(taskId, taskItem)
case ModelListen:
l.modelTask(taskItem)
case ConfigListen:
l.configTask(taskItem)
}
return true
})
time.Sleep(time.Duration(l.intervalSecond) * time.Second)
}
}
// listen config
func (l *ListenDbTask) configTask(item *TaskItem) {
confSignal := item.curVal.(*configSignal)
md5Old := confSignal.md5
configOld := confSignal.config
// read config from disk
configPath := fmt.Sprintf("%s/%s", config.ConfigGlobal.SdPath, SD_CONFIG)
md5New := ""
if !utils.FileExists(configPath) {
logrus.Infof("[configTask] file %s not exist", configPath)
} else {
md5New, _ = utils.FileMD5(configPath)
}
// diff
if md5New != "" && md5New != md5Old {
configNew, _ := ioutil.ReadFile(configPath)
// diff config content
if configOld == "" || !isSameConfig([]byte(configOld), configNew) {
logrus.Info("[configTask] update config")
// update success
if err := updateConfig(configNew, md5New, l.configStore); err == nil {
confSignal.md5 = md5New
confSignal.config = string(configNew)
// change, call callback and update db
item.callBack(nil)
}
}
}
}
// listen model task
func (l *ListenDbTask) modelTask(item *TaskItem) {
// controlNet
oldVal := *(item.curVal.(*map[string]struct{}))
path := fmt.Sprintf("%s/models/%s", config.ConfigGlobal.SdPath, "ControlNet")
curVal := listModelFile(path)
add, del := utils.DiffSet(oldVal, curVal)
if len(add) != 0 || len(del) != 0 {
logrus.Infof("[modelTask] controlnet model change add: %s, del: %s",
strings.Join(add, ","), strings.Join(del, ","))
item.curVal = &curVal
item.callBack(config.CONTORLNET_MODEL)
}
// vae
if oldVal, err := getVaeFromSD(); err == nil {
path := fmt.Sprintf("%s/models/%s", config.ConfigGlobal.SdPath, "VAE")
curVal := listModelFile(path)
add, del := utils.DiffSet(oldVal, curVal)
if len(add) != 0 || len(del) != 0 {
logrus.Infof("[modelTask] vae model change add: %s, del: %s",
strings.Join(add, ","), strings.Join(del, ","))
item.callBack(config.SD_VAE)
}
}
// checkpoint
if oldVal, err := getCheckPointFromSD(); err == nil {
path := fmt.Sprintf("%s/models/%s", config.ConfigGlobal.SdPath, "Stable-diffusion")
curVal := listModelFile(path)
add, del := utils.DiffSet(oldVal, curVal)
if len(add) != 0 || len(del) != 0 {
logrus.Infof("[modelTask] Stable-diffusion model change add: %s, del: %s",
strings.Join(add, ","), strings.Join(del, ","))
item.callBack(config.SD_MODEL)
}
}
}
// listen task cancel
func (l *ListenDbTask) cancelTask(taskId string, item *TaskItem) {
ret, err := l.taskStore.Get(taskId, []string{datastore.KTaskCancel, datastore.KTaskStatus})
if err != nil {
l.tasks.Delete(taskId)
return
}
// check task finish delete db listen task
status := ret[datastore.KTaskStatus].(string)
if status == config.TASK_FINISH || status == config.TASK_FAILED {
l.tasks.Delete(taskId)
return
}
// cancel val == 1
cancelVal := ret[datastore.KTaskCancel].(int64)
if cancelVal == int64(config.CANCEL_VALID) {
item.callBack(nil)
l.tasks.Delete(taskId)
return
}
}
// AddTask add listen task
func (l *ListenDbTask) AddTask(key string, listenType ListenType, callBack CallBack) {
var curVal interface{}
if listenType == ModelListen {
// controlNet load and other type model not need
path := fmt.Sprintf("%s/models/%s", config.ConfigGlobal.SdPath, "ControlNet")
datas := listModelFile(path)
val := make(map[string]struct{})
for data := range datas {
modelName := data
val[modelName] = struct{}{}
}
curVal = &val
} else if listenType == ConfigListen {
// read db
data, err := l.configStore.Get(ConfigDefaultKey, []string{datastore.KConfigMd5, datastore.KConfigVal})
if err != nil {
logrus.Fatal("[AddTask] read config db error:", err.Error())
}
md5Old := ""
configOld := ""
if data != nil && len(data) > 0 {
md5Old = data[datastore.KConfigMd5].(string)
configOld = data[datastore.KConfigVal].(string)
}
md5New := ""
configPath := fmt.Sprintf("%s/%s", config.ConfigGlobal.SdPath, SD_CONFIG)
if !utils.FileExists(configPath) {
logrus.Infof("file %s not exist", configPath)
} else {
md5New, _ = utils.FileMD5(configPath)
}
// diff
if md5New != "" && md5New != md5Old {
configNew, _ := ioutil.ReadFile(configPath)
if configOld == "" {
if err := putConfig(configNew, md5New, l.configStore); err == nil {
logrus.Info("[AddTask] put config")
md5Old = md5New
configOld = string(configNew)
}
} else if !isSameConfig([]byte(configOld), configNew) {
// diff config content
logrus.Info("[AddTask] update config")
// update success
if err := updateConfig(configNew, md5New, l.configStore); err == nil {
md5Old = md5New
configOld = string(configNew)
}
}
}
curVal = &configSignal{
configStore: l.configStore,
md5: md5Old,
config: configOld,
}
}
l.tasks.Store(key, &TaskItem{
listenType: listenType,
callBack: callBack,
curVal: curVal,
})
}
// Close listen
func (l *ListenDbTask) Close() {
l.stop <- struct{}{}
}
func listModelFile(path string) map[string]struct{} {
files := utils.ListFile(path)
ret := make(map[string]struct{})
for _, name := range files {
if strings.HasSuffix(name, ".pt") || strings.HasSuffix(name, ".ckpt") ||
strings.HasSuffix(name, ".safetensors") || strings.HasSuffix(name, ".pth") {
ret[name] = struct{}{}
}
}
return ret
}
func updateConfig(data []byte, md5 string, configStore datastore.Datastore) error {
// check data valid
if !json.Valid(data) {
logrus.Info("[updateConfig] config json not valid, please check")
return errors.New("config not valid json")
}
if err := configStore.Update(ConfigDefaultKey, map[string]interface{}{
datastore.KConfigMd5: md5,
datastore.KConfigVal: string(data),
datastore.KConfigModifyTime: fmt.Sprintf("%d", utils.TimestampS()),
}); err != nil {
logrus.Info("[updateConfig] update db error")
return err
}
return nil
}
func putConfig(data []byte, md5 string, configStore datastore.Datastore) error {
// check data valid
if !json.Valid(data) {
logrus.Info("[putConfig] config json not valid, please check")
return errors.New("config not valid json")
}
if err := configStore.Put(ConfigDefaultKey, map[string]interface{}{
datastore.KConfigMd5: md5,
datastore.KConfigVal: string(data),
datastore.KConfigModifyTime: fmt.Sprintf("%d", utils.TimestampS()),
datastore.KConfigCreateTime: fmt.Sprintf("%d", utils.TimestampS()),
}); err != nil {
logrus.Info("[putConfig] put db error")
return err
}
return nil
}
func getVaeFromSD() (map[string]struct{}, error) {
url := fmt.Sprintf("%s%s", config.ConfigGlobal.SdUrlPrefix, config.GET_SD_VAE)
req, _ := http.NewRequest("GET", url, nil)
resp, err := client.Do(req)
if err != nil {
return nil, err
}
body, err := io.ReadAll(resp.Body)
defer resp.Body.Close()
if err != nil {
return nil, err
}
var result []map[string]string
if err := json.Unmarshal(body, &result); err != nil {
return nil, err
}
ret := make(map[string]struct{})
for _, one := range result {
k := one["model_name"]
ret[k] = struct{}{}
}
return ret, nil
}
func getCheckPointFromSD() (map[string]struct{}, error) {
url := fmt.Sprintf("%s%s", config.ConfigGlobal.SdUrlPrefix, config.GET_SD_MODEL)
req, err := http.NewRequest("GET", url, nil)
resp, err := client.Do(req)
if err != nil {
return nil, err
}
body, err := io.ReadAll(resp.Body)
defer resp.Body.Close()
if err != nil {
return nil, err
}
var result []map[string]string
if err := json.Unmarshal(body, &result); err != nil {
return nil, err
}
ret := make(map[string]struct{})
for _, one := range result {
k := one["title"]
modelSlice := strings.Split(k, " ")
ret[modelSlice[0]] = struct{}{}
}
return ret, nil
}
// check config old and new same
func isSameConfig(old, new []byte) bool {
notCheckField := map[string]struct{}{
"sd_checkpoint_hash": {},
"sd_model_checkpoint": {},
"sd_vae": {},
"upscaler_for_img2img": {},
}
var oldMap map[string]interface{}
if err := json.Unmarshal(old, &oldMap); err != nil {
logrus.Info(err.Error())
return true
}
var newMap map[string]interface{}
if err := json.Unmarshal(new, &newMap); err != nil {
logrus.Info(err.Error())
return true
}
for key, val := range newMap {
if _, ok := notCheckField[key]; ok {
continue
}
if oldVal, ok := oldMap[key]; !ok {
return false
} else if !utils.IsSame(key, val, oldVal) {
return false
}
}
return true
}