func sleep(stmt *Stmt) (func(*Context) (interface{}, error), error) {
return func(context *Context) (interface{}, error) {
duration := time.Duration(util.MaybeInt(stmt.Arg("sleep", context))) * time.Millisecond
timer := time.NewTimer(duration)
for {
select {
case <-timer.C:
return nil, nil
case f := <-context.VM.StopChan:
timer.Stop()
f()
return nil, nil
}
}
}, nil
}
//NewStmt makes gohan statement from yaml node
func NewStmt(FileName string, node *yaml.Node) (stmt *Stmt, err error) {
if node == nil {
return nil, nil
}
stmt = &Stmt{}
stmt.RawNode = MappingNodeToMap(node)
stmt.Line = node.Line + 1
stmt.Column = node.Column
var rawData interface{}
yaml.UnmarshalNode(node, &rawData)
stmt.RawData = util.MaybeMap(convertMapformat(rawData))
stmt.Name = util.MaybeString(stmt.RawData["name"])
stmt.File, _ = filepath.Abs(FileName)
stmt.Dir = filepath.Dir(stmt.File)
stmt.Always, err = MakeStmts(FileName, stmt.RawNode["always"])
if err != nil {
return nil, stmt.Error(err)
}
stmt.Rescue, err = MakeStmts(FileName, stmt.RawNode["rescue"])
if err != nil {
return nil, stmt.Error(err)
}
stmt.ElseStmt, err = MakeStmts(FileName, stmt.RawNode["else"])
if err != nil {
return nil, stmt.Error(err)
}
stmt.Retry = util.MaybeInt(stmt.RawData["retries"])
stmt.Worker = util.MaybeInt(stmt.RawData["worker"])
stmt.LoopVar = util.MaybeString(stmt.RawData["loop_var"])
if stmt.LoopVar == "" {
stmt.LoopVar = "item"
}
if stmt.Retry == 0 {
stmt.Retry = 1
}
stmt.Delay = util.MaybeInt(stmt.RawData["delay"])
stmt.WithItems, err = NewValue(stmt.RawData["with_items"])
if err != nil {
return nil, stmt.Error(err)
}
stmt.WithDict, err = NewValue(stmt.RawData["with_dict"])
if err != nil {
return nil, stmt.Error(err)
}
if stmt.RawData["when"] != nil {
stmt.When, err = CompileExpr(util.MaybeString(stmt.RawData["when"]))
if err != nil {
return nil, stmt.Error(err)
}
}
if stmt.RawData["until"] != nil {
stmt.Until, err = CompileExpr(util.MaybeString(stmt.RawData["until"]))
if err != nil {
return nil, stmt.Error(err)
}
}
stmt.Register = util.MaybeString(stmt.RawData["register"])
stmt.Vars, err = MapToValue(util.MaybeMap(stmt.RawData["vars"]))
if err != nil {
return nil, stmt.Error(err)
}
return stmt, nil
}
// MaybeInt returns a int
func (context *Context) MaybeInt(key string) int {
return util.MaybeInt(context.MayGet(key))
}