func luaCallGenericCommand(l *lua.State) int {
s := getMapState(l)
if s == nil {
panic("Invalid lua call")
} else if s.c.db == nil {
panic("Invalid lua call, not prepared")
}
c := s.c
argc := l.GetTop()
if argc < 1 {
panic("Please specify at least one argument for ledis.call()")
}
c.cmd = l.ToString(1)
c.args = make([][]byte, argc-1)
for i := 2; i <= argc; i++ {
switch l.Type(i) {
case lua.LUA_TNUMBER:
c.args[i-2] = []byte(fmt.Sprintf("%.17g", l.ToNumber(i)))
case lua.LUA_TSTRING:
c.args[i-2] = []byte(l.ToString(i))
default:
panic("Lua ledis() command arguments must be strings or integers")
}
}
c.perform()
return 1
}
func luaPushError(l *lua.State, msg string) {
l.NewTable()
l.PushString("err")
err := l.NewError(msg)
l.PushString(err.Error())
l.SetTable(-3)
}
func luaSetGlobalArray(l *lua.State, name string, ay [][]byte) {
l.NewTable()
for i := 0; i < len(ay); i++ {
l.PushString(hack.String(ay[i]))
l.RawSeti(-2, i+1)
}
l.SetGlobal(name)
}
func luaSha1Hex(l *lua.State) int {
argc := l.GetTop()
if argc != 1 {
luaPushError(l, "wrong number of arguments")
return 1
}
s := l.ToString(1)
s = hex.EncodeToString(hack.Slice(s))
l.PushString(s)
return 1
}
func luaReplyToLedisReply(l *lua.State) interface{} {
base := l.GetTop()
defer func() {
l.SetTop(base - 1)
}()
switch l.Type(-1) {
case lua.LUA_TSTRING:
return hack.Slice(l.ToString(-1))
case lua.LUA_TBOOLEAN:
if l.ToBoolean(-1) {
return int64(1)
} else {
return nil
}
case lua.LUA_TNUMBER:
return int64(l.ToInteger(-1))
case lua.LUA_TTABLE:
l.PushString("err")
l.GetTable(-2)
if l.Type(-1) == lua.LUA_TSTRING {
return fmt.Errorf("%s", l.ToString(-1))
}
l.Pop(1)
l.PushString("ok")
l.GetTable(-2)
if l.Type(-1) == lua.LUA_TSTRING {
return l.ToString(-1)
} else {
l.Pop(1)
ay := make([]interface{}, 0)
for i := 1; ; i++ {
l.PushInteger(int64(i))
l.GetTable(-2)
if l.Type(-1) == lua.LUA_TNIL {
l.Pop(1)
break
}
ay = append(ay, luaReplyToLedisReply(l))
}
return ay
}
default:
return nil
}
}
func luaReturnSingleFieldTable(l *lua.State, filed string) int {
if l.GetTop() != 1 || l.Type(-1) != lua.LUA_TSTRING {
luaPushError(l, "wrong number or type of arguments")
return 1
}
l.NewTable()
l.PushString(filed)
l.PushValue(-3)
l.SetTable(-3)
return 1
}
func luaErrorHandler(l *lua.State) int {
msg := l.ToString(1)
panic(fmt.Errorf(msg))
}