lua.go

package lua

// Call -- dofile(filePath) and call methodName on vm
func Call(filePath string, methodName string, args ...interface{}) (interface{}, error) {
	callback := make(chan interface{})
	defer close(callback)

	ctx := &gLuaContext{
		vmId:       0,
		threadId:   0,
		scriptPath: filePath,
		methodName: methodName,
		args:       args,
		callback:   callback,
	}
	getCore().push(ctx)

Resume:
	res := <-ctx.callback
	switch res.(type) {
	case error:
		if res.(error).Error() == "LUA_YIELD" {
			yctx, err := loadYieldContext(ctx.threadId)
			if err != nil {
				return nil, err
			}
			go func() {
				res, err := callExternMethod(yctx.methodName, yctx.args...)
				if err == nil {
					ctx.args = []interface{}{res, nil}
				} else {
					ctx.args = []interface{}{res, err.Error()}
				}
				getCore().push(ctx)
			}()
			goto Resume
		} else {
			return nil, res.(error)
		}
	default:
		return res, nil
	}
}