Compare commits

...

18 Commits

Author SHA1 Message Date
8057313c78
Merge remote-tracking branch 'remotes/origin/master' into menu-profile-edit 2024-09-24 09:10:17 +03:00
e9fdd1ddbe Merge pull request 'Threaded gdbm' (#76) from lash/thread-gdbm into master
Reviewed-on: #76
2024-09-23 21:25:37 +02:00
lash
6112ca175f Merge branch 'master' into lash/thread-gdbm 2024-09-23 18:54:18 +01:00
lash
c02d70eaa4
Upgrade dep, improve logging 2024-09-23 17:35:17 +01:00
lash
8a5209584d
Update go module deps 2024-09-22 16:25:04 +01:00
lash
7d3ff690f0
Remove useless 'registered' member in thread gdbm 2024-09-22 03:10:58 +01:00
lash
a455cfb854
Return if duplicate connect 2024-09-22 03:09:53 +01:00
lash
1cc2f58ab3
Remove ssh 2024-09-22 03:03:03 +01:00
lash
3756bdc98a Merge remote-tracking branch 'origin/lash/ssh' into lash/ssh 2024-09-22 02:58:18 +01:00
lash
e07f88b368
Settable ssh keyfile, host, port 2024-09-22 02:57:10 +01:00
472624a831 Merge branch 'master' into lash/ssh 2024-09-22 03:38:53 +02:00
lash
84422684c5
Rehabilitate all executables 2024-09-22 02:33:11 +01:00
lash
28fc7a0462
Implement threaded gdbm in storageservice 2024-09-22 02:28:00 +01:00
lash
78d349ccc7
Add threaded gdbm wrapper 2024-09-22 02:21:56 +01:00
lash
0813a619b4
Add hacky db closer function in ssh 2024-09-21 21:32:02 +01:00
lash
5ed9d2643b
WIP can execute single session, but persister fails in next 2024-09-21 18:56:20 +01:00
lash
8dcba67fe9
WIP can execute single session, but persister fails in next 2024-09-21 18:49:11 +01:00
lash
5cac17676a
WIP adapt ssh server sketch to urdt setup 2024-09-21 00:32:39 +01:00
11 changed files with 232 additions and 69 deletions

View File

@ -98,21 +98,20 @@ func main() {
cfg.EngineDebug = true cfg.EngineDebug = true
} }
menuStorageService := storage.MenuStorageService{} menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
rs, err := menuStorageService.GetResource(ctx)
rs, err := menuStorageService.GetResource(scriptDir, ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
err = menuStorageService.EnsureDbDir(dbDir) err = menuStorageService.EnsureDbDir()
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
userdataStore := menuStorageService.GetUserdataDb(dbDir, ctx) userdataStore, err := menuStorageService.GetUserdataDb(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
@ -125,7 +124,7 @@ func main() {
} }
lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs) lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
lhs.WithDataStore(&userdataStore) lhs.SetDataStore(&userdataStore)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
@ -138,7 +137,7 @@ func main() {
os.Exit(1) os.Exit(1)
} }
stateStore, err := menuStorageService.GetStateStore(dbDir, ctx) stateStore, err := menuStorageService.GetStateStore(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)

View File

@ -71,20 +71,20 @@ func main() {
cfg.EngineDebug = true cfg.EngineDebug = true
} }
menuStorageService := storage.MenuStorageService{} menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
rs, err := menuStorageService.GetResource(scriptDir, ctx) rs, err := menuStorageService.GetResource(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
err = menuStorageService.EnsureDbDir(dbDir) err = menuStorageService.EnsureDbDir()
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
userdataStore := menuStorageService.GetUserdataDb(dbDir, ctx) userdataStore, err := menuStorageService.GetUserdataDb(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
@ -97,7 +97,7 @@ func main() {
} }
lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs) lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
lhs.WithDataStore(&userdataStore) lhs.SetDataStore(&userdataStore)
hl, err := lhs.GetHandler() hl, err := lhs.GetHandler()
if err != nil { if err != nil {
@ -105,7 +105,7 @@ func main() {
os.Exit(1) os.Exit(1)
} }
stateStore, err := menuStorageService.GetStateStore(dbDir, ctx) stateStore, err := menuStorageService.GetStateStore(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
@ -138,22 +138,26 @@ func main() {
for true { for true {
rqs, err = sh.Process(rqs) rqs, err = sh.Process(rqs)
if err != nil { if err != nil {
logg.ErrorCtxf(ctx, "error in process: %v", "err", err)
fmt.Errorf("error in process: %v", err) fmt.Errorf("error in process: %v", err)
os.Exit(1) os.Exit(1)
} }
rqs, err = sh.Output(rqs) rqs, err = sh.Output(rqs)
if err != nil { if err != nil {
logg.ErrorCtxf(ctx, "error in output: %v", "err", err)
fmt.Errorf("error in output: %v", err) fmt.Errorf("error in output: %v", err)
os.Exit(1) os.Exit(1)
} }
rqs, err = sh.Reset(rqs) rqs, err = sh.Reset(rqs)
if err != nil { if err != nil {
logg.ErrorCtxf(ctx, "error in reset: %v", "err", err)
fmt.Errorf("error in reset: %v", err) fmt.Errorf("error in reset: %v", err)
os.Exit(1) os.Exit(1)
} }
fmt.Println("") fmt.Println("")
_, err = fmt.Scanln(&rqs.Input) _, err = fmt.Scanln(&rqs.Input)
if err != nil { if err != nil {
logg.ErrorCtxf(ctx, "error in input", "err", err)
fmt.Errorf("error in input: %v", err) fmt.Errorf("error in input: %v", err)
os.Exit(1) os.Exit(1)
} }

View File

@ -59,20 +59,20 @@ func main() {
cfg.EngineDebug = true cfg.EngineDebug = true
} }
menuStorageService := storage.MenuStorageService{} menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
rs, err := menuStorageService.GetResource(scriptDir, ctx) rs, err := menuStorageService.GetResource(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
err = menuStorageService.EnsureDbDir(dbDir) err = menuStorageService.EnsureDbDir()
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
userdataStore := menuStorageService.GetUserdataDb(dbDir, ctx) userdataStore, err := menuStorageService.GetUserdataDb(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
@ -85,7 +85,7 @@ func main() {
} }
lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs) lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
lhs.WithDataStore(&userdataStore) lhs.SetDataStore(&userdataStore)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
@ -98,7 +98,7 @@ func main() {
os.Exit(1) os.Exit(1)
} }
stateStore, err := menuStorageService.GetStateStore(dbDir, ctx) stateStore, err := menuStorageService.GetStateStore(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)

View File

@ -43,27 +43,28 @@ func main() {
FlagCount: uint32(16), FlagCount: uint32(16),
} }
menuStorageService := storage.MenuStorageService{} resourceDir := scriptDir
menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
err := menuStorageService.EnsureDbDir(dbDir) err := menuStorageService.EnsureDbDir()
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
rs, err := menuStorageService.GetResource(scriptDir, ctx) rs, err := menuStorageService.GetResource(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
pe, err := menuStorageService.GetPersister(dbDir, ctx) pe, err := menuStorageService.GetPersister(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
userdatastore := menuStorageService.GetUserdataDb(dbDir, ctx) userdatastore, err := menuStorageService.GetUserdataDb(ctx)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
@ -76,8 +77,8 @@ func main() {
} }
lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs) lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
lhs.WithDataStore(&userdatastore) lhs.SetDataStore(&userdatastore)
lhs.WithPersister(pe) lhs.SetPersister(pe)
if err != nil { if err != nil {
fmt.Fprintf(os.Stderr, err.Error()) fmt.Fprintf(os.Stderr, err.Error())

2
go.mod
View File

@ -3,7 +3,7 @@ module git.grassecon.net/urdt/ussd
go 1.22.6 go 1.22.6
require ( require (
git.defalsify.org/vise.git v0.1.0-rc.3.0.20240922152136-7ea16f9137b4 git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb
github.com/alecthomas/assert/v2 v2.2.2 github.com/alecthomas/assert/v2 v2.2.2
github.com/peteole/testdata-loader v0.3.0 github.com/peteole/testdata-loader v0.3.0
gopkg.in/leonelquinteros/gotext.v1 v1.3.1 gopkg.in/leonelquinteros/gotext.v1 v1.3.1

4
go.sum
View File

@ -1,5 +1,5 @@
git.defalsify.org/vise.git v0.1.0-rc.3.0.20240922152136-7ea16f9137b4 h1:IMVUK9OkZ/QtYZPHgTZ+XUs5VQ4eIewIaTyVSCF/nAY= git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb h1:6P4kxihcwMjDKzvUFC6t2zGNb7MDW+l/ACGlSAN1N8Y=
git.defalsify.org/vise.git v0.1.0-rc.3.0.20240922152136-7ea16f9137b4/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M= git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M=
github.com/alecthomas/assert/v2 v2.2.2 h1:Z/iVC0xZfWTaFNE6bA3z07T86hd45Xe2eLt6WVy2bbk= github.com/alecthomas/assert/v2 v2.2.2 h1:Z/iVC0xZfWTaFNE6bA3z07T86hd45Xe2eLt6WVy2bbk=
github.com/alecthomas/assert/v2 v2.2.2/go.mod h1:pXcQ2Asjp247dahGEmsZ6ru0UVwnkhktn7S0bBDLxvQ= github.com/alecthomas/assert/v2 v2.2.2/go.mod h1:pXcQ2Asjp247dahGEmsZ6ru0UVwnkhktn7S0bBDLxvQ=
github.com/alecthomas/participle/v2 v2.0.0 h1:Fgrq+MbuSsJwIkw3fEj9h75vDP0Er5JzepJ0/HNHv0g= github.com/alecthomas/participle/v2 v2.0.0 h1:Fgrq+MbuSsJwIkw3fEj9h75vDP0Er5JzepJ0/HNHv0g=

View File

@ -46,7 +46,7 @@ func(f *BaseSessionHandler) Process(rqs RequestSession) (RequestSession, error)
var err error var err error
var ok bool var ok bool
logg.InfoCtxf(rqs.Ctx, "new request", rqs) logg.InfoCtxf(rqs.Ctx, "new request", "data", rqs)
rqs.Storage, err = f.provider.Get(rqs.Config.SessionId) rqs.Storage, err = f.provider.Get(rqs.Config.SessionId)
if err != nil { if err != nil {

View File

@ -44,16 +44,16 @@ func NewLocalHandlerService(fp string, debug bool, dbResource *resource.DbResour
}, nil }, nil
} }
func (localHandlerService *LocalHandlerService) WithPersister(Pe *persist.Persister) { func (ls *LocalHandlerService) SetPersister(Pe *persist.Persister) {
localHandlerService.Pe = Pe ls.Pe = Pe
} }
func (localHandlerService *LocalHandlerService) WithDataStore(db *db.Db) { func (ls *LocalHandlerService) SetDataStore(db *db.Db) {
localHandlerService.UserdataStore = db ls.UserdataStore = db
} }
func (localHandlerService *LocalHandlerService) GetHandler() (*ussd.Handlers, error) { func (ls *LocalHandlerService) GetHandler() (*ussd.Handlers, error) {
ussdHandlers, err := ussd.NewHandlers(localHandlerService.Parser, *localHandlerService.UserdataStore) ussdHandlers, err := ussd.NewHandlers(ls.Parser, *ls.UserdataStore)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -97,8 +97,9 @@ func (localHandlerService *LocalHandlerService) GetHandler() (*ussd.Handlers, er
return ussdHandlers, nil return ussdHandlers, nil
} }
func (localHandlerService *LocalHandlerService) GetEngine() *engine.DefaultEngine { // TODO: enable setting of sessionId on engine init time
en := engine.NewEngine(localHandlerService.Cfg, localHandlerService.Rs) func (ls *LocalHandlerService) GetEngine() *engine.DefaultEngine {
en = en.WithPersister(localHandlerService.Pe) en := engine.NewEngine(ls.Cfg, ls.Rs)
en = en.WithPersister(ls.Pe)
return en return en
} }

115
internal/storage/gdbm.go Normal file
View File

@ -0,0 +1,115 @@
package storage
import (
"context"
"git.defalsify.org/vise.git/db"
"git.defalsify.org/vise.git/lang"
gdbmdb "git.defalsify.org/vise.git/db/gdbm"
)
var (
dbC map[string]chan db.Db
)
type ThreadGdbmDb struct {
db db.Db
connStr string
}
func NewThreadGdbmDb() *ThreadGdbmDb {
if dbC == nil {
dbC = make(map[string]chan db.Db)
}
return &ThreadGdbmDb{}
}
func(tdb *ThreadGdbmDb) Connect(ctx context.Context, connStr string) error {
var ok bool
_, ok = dbC[connStr]
if ok {
logg.WarnCtxf(ctx, "already registered thread gdbm, skipping", "connStr", connStr)
return nil
}
gdb := gdbmdb.NewGdbmDb()
err := gdb.Connect(ctx, connStr)
if err != nil {
return err
}
dbC[connStr] = make(chan db.Db, 1)
dbC[connStr]<- gdb
tdb.connStr = connStr
return nil
}
func(tdb *ThreadGdbmDb) reserve() {
if tdb.db == nil {
tdb.db = <-dbC[tdb.connStr]
}
}
func(tdb *ThreadGdbmDb) release() {
if tdb.db == nil {
return
}
dbC[tdb.connStr] <- tdb.db
tdb.db = nil
}
func(tdb *ThreadGdbmDb) SetPrefix(pfx uint8) {
tdb.reserve()
tdb.db.SetPrefix(pfx)
}
func(tdb *ThreadGdbmDb) SetSession(sessionId string) {
tdb.reserve()
tdb.db.SetSession(sessionId)
}
func(tdb *ThreadGdbmDb) SetLanguage(lng *lang.Language) {
tdb.reserve()
tdb.db.SetLanguage(lng)
}
func(tdb *ThreadGdbmDb) Safe() bool {
tdb.reserve()
v := tdb.db.Safe()
tdb.release()
return v
}
func(tdb *ThreadGdbmDb) Prefix() uint8 {
tdb.reserve()
v := tdb.db.Prefix()
tdb.release()
return v
}
func(tdb *ThreadGdbmDb) SetLock(typ uint8, locked bool) error {
tdb.reserve()
err := tdb.db.SetLock(typ, locked)
tdb.release()
return err
}
func(tdb *ThreadGdbmDb) Put(ctx context.Context, key []byte, val []byte) error {
tdb.reserve()
err := tdb.db.Put(ctx, key, val)
tdb.release()
return err
}
func(tdb *ThreadGdbmDb) Get(ctx context.Context, key []byte) ([]byte, error) {
tdb.reserve()
v, err := tdb.db.Get(ctx, key)
tdb.release()
return v, err
}
func(tdb *ThreadGdbmDb) Close() error {
tdb.reserve()
close(dbC[tdb.connStr])
err := tdb.db.Close()
tdb.db = nil
return err
}

View File

@ -5,6 +5,10 @@ import (
"git.defalsify.org/vise.git/persist" "git.defalsify.org/vise.git/persist"
) )
const (
DATATYPE_CUSTOM = 128
)
type Storage struct { type Storage struct {
Persister *persist.Persister Persister *persist.Persister
UserdataDb db.Db UserdataDb db.Db

View File

@ -8,57 +8,96 @@ import (
"git.defalsify.org/vise.git/db" "git.defalsify.org/vise.git/db"
fsdb "git.defalsify.org/vise.git/db/fs" fsdb "git.defalsify.org/vise.git/db/fs"
gdbmdb "git.defalsify.org/vise.git/db/gdbm"
"git.defalsify.org/vise.git/persist" "git.defalsify.org/vise.git/persist"
"git.defalsify.org/vise.git/resource" "git.defalsify.org/vise.git/resource"
"git.defalsify.org/vise.git/logging"
)
var (
logg = logging.NewVanilla().WithDomain("storage")
) )
type StorageService interface { type StorageService interface {
GetPersister(dbDir string, ctx context.Context) (*persist.Persister, error) GetPersister(ctx context.Context) (*persist.Persister, error)
GetUserdataDb(dbDir string, ctx context.Context) db.Db GetUserdataDb(ctx context.Context) db.Db
GetResource(resourceDir string, ctx context.Context) (resource.Resource, error) GetResource(ctx context.Context) (resource.Resource, error)
EnsureDbDir(dbDir string) error EnsureDbDir() error
} }
type MenuStorageService struct{} type MenuStorageService struct{
dbDir string
func (menuStorageService *MenuStorageService) GetPersister(dbDir string, ctx context.Context) (*persist.Persister, error) { resourceDir string
store := gdbmdb.NewGdbmDb() resourceStore db.Db
storeFile := path.Join(dbDir, "state.gdbm") stateStore db.Db
store.Connect(ctx, storeFile) userDataStore db.Db
pr := persist.NewPersister(store)
return pr, nil
} }
func (menuStorageService *MenuStorageService) GetUserdataDb(dbDir string, ctx context.Context) db.Db { func NewMenuStorageService(dbDir string, resourceDir string) *MenuStorageService {
store := gdbmdb.NewGdbmDb() return &MenuStorageService{
storeFile := path.Join(dbDir, "userdata.gdbm") dbDir: dbDir,
store.Connect(ctx, storeFile) resourceDir: resourceDir,
}
return store
} }
func (menuStorageService *MenuStorageService) GetResource(resourceDir string, ctx context.Context) (resource.Resource, error) { func (ms *MenuStorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
store := fsdb.NewFsDb() ms.stateStore = NewThreadGdbmDb()
err := store.Connect(ctx, resourceDir) storeFile := path.Join(ms.dbDir, "state.gdbm")
err := ms.stateStore.Connect(ctx, storeFile)
if err != nil { if err != nil {
return nil, err return nil, err
} }
rfs := resource.NewDbResource(store) pr := persist.NewPersister(ms.stateStore)
logg.TraceCtxf(ctx, "menu storage service", "persist", pr, "store", ms.stateStore)
return pr, nil
}
func (ms *MenuStorageService) GetUserdataDb(ctx context.Context) (db.Db, error) {
ms.userDataStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "userdata.gdbm")
err := ms.userDataStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
return ms.userDataStore, nil
}
func (ms *MenuStorageService) GetResource(ctx context.Context) (resource.Resource, error) {
ms.resourceStore = fsdb.NewFsDb()
err := ms.resourceStore.Connect(ctx, ms.resourceDir)
if err != nil {
return nil, err
}
rfs := resource.NewDbResource(ms.resourceStore)
return rfs, nil return rfs, nil
} }
func (menuStorageService *MenuStorageService) GetStateStore(dbDir string, ctx context.Context) (db.Db, error) { func (ms *MenuStorageService) GetStateStore(ctx context.Context) (db.Db, error) {
store := gdbmdb.NewGdbmDb() if ms.stateStore != nil {
storeFile := path.Join(dbDir, "state.gdbm") panic("set up store when already exists")
store.Connect(ctx, storeFile) }
return store, nil ms.stateStore = NewThreadGdbmDb()
storeFile := path.Join(ms.dbDir, "state.gdbm")
err := ms.stateStore.Connect(ctx, storeFile)
if err != nil {
return nil, err
}
return ms.stateStore, nil
} }
func (menuStorageService *MenuStorageService) EnsureDbDir(dbDir string) error { func (ms *MenuStorageService) EnsureDbDir() error {
err := os.MkdirAll(dbDir, 0700) err := os.MkdirAll(ms.dbDir, 0700)
if err != nil { if err != nil {
return fmt.Errorf("state dir create exited with error: %v\n", err) return fmt.Errorf("state dir create exited with error: %v\n", err)
} }
return nil return nil
} }
func (ms *MenuStorageService) Close() error {
errA := ms.stateStore.Close()
errB := ms.userDataStore.Close()
errC := ms.resourceStore.Close()
if errA != nil || errB != nil || errC != nil {
return fmt.Errorf("%v %v %v", errA, errB, errC)
}
return nil
}