ussd/internal/storage/postgres.go

116 lines
2.2 KiB
Go

package storage
import (
"context"
"git.defalsify.org/vise.git/db"
postgres "git.defalsify.org/vise.git/db/postgres"
"git.defalsify.org/vise.git/lang"
)
var (
pdbC map[string]chan db.Db
)
type ThreadPostgresDb struct {
db db.Db
connStr string
}
func NewThreadPostgresDb() *ThreadPostgresDb {
if pdbC == nil {
pdbC = make(map[string]chan db.Db)
}
return &ThreadPostgresDb{}
}
func (tpdb *ThreadPostgresDb) Connect(ctx context.Context, connStr string) error {
var ok bool
_, ok = pdbC[connStr]
if ok {
logg.WarnCtxf(ctx, "already registered thread postgres, skipping", "connStr", connStr)
return nil
}
postgresdb := postgres.NewPgDb().WithSchema("public")
err := postgresdb.Connect(ctx, connStr)
if err != nil {
return err
}
pdbC[connStr] = make(chan db.Db, 1)
pdbC[connStr] <- postgresdb
tpdb.connStr = connStr
return nil
}
func (tpdb *ThreadPostgresDb) reserve() {
if tpdb.db == nil {
tpdb.db = <-pdbC[tpdb.connStr]
}
}
func (tpdb *ThreadPostgresDb) release() {
if tpdb.db == nil {
return
}
pdbC[tpdb.connStr] <- tpdb.db
tpdb.db = nil
}
func (tpdb *ThreadPostgresDb) SetPrefix(pfx uint8) {
tpdb.reserve()
tpdb.db.SetPrefix(pfx)
}
func (tpdb *ThreadPostgresDb) SetSession(sessionId string) {
tpdb.reserve()
tpdb.db.SetSession(sessionId)
}
func (tpdb *ThreadPostgresDb) SetLanguage(lng *lang.Language) {
tpdb.reserve()
tpdb.db.SetLanguage(lng)
}
func (tpdb *ThreadPostgresDb) Safe() bool {
tpdb.reserve()
v := tpdb.db.Safe()
tpdb.release()
return v
}
func (tpdb *ThreadPostgresDb) Prefix() uint8 {
tpdb.reserve()
v := tpdb.db.Prefix()
tpdb.release()
return v
}
func (tpdb *ThreadPostgresDb) SetLock(typ uint8, locked bool) error {
tpdb.reserve()
err := tpdb.db.SetLock(typ, locked)
tpdb.release()
return err
}
func (tpdb *ThreadPostgresDb) Put(ctx context.Context, key []byte, val []byte) error {
tpdb.reserve()
err := tpdb.db.Put(ctx, key, val)
tpdb.release()
return err
}
func (tpdb *ThreadPostgresDb) Get(ctx context.Context, key []byte) ([]byte, error) {
tpdb.reserve()
v, err := tpdb.db.Get(ctx, key)
tpdb.release()
return v, err
}
func (tpdb *ThreadPostgresDb) Close() error {
tpdb.reserve()
close(pdbC[tpdb.connStr])
err := tpdb.db.Close()
tpdb.db = nil
return err
}