ussd/internal/storage/gdbm.go
2024-11-25 09:56:24 +03:00

122 lines
2.2 KiB
Go

package storage
import (
"context"
"git.defalsify.org/vise.git/db"
gdbmdb "git.defalsify.org/vise.git/db/gdbm"
"git.defalsify.org/vise.git/lang"
)
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])
delete(dbC, tdb.connStr)
err := tdb.db.Close()
tdb.db = nil
return err
}
func(tdb *ThreadGdbmDb) Dump(_ context.Context, _ []byte) (*db.Dumper, error) {
logg.Warnf("method not implemented for thread gdbm db")
return nil, nil
}