Function newMsgHandle

znet/msghandler.go:54–104

newMsgHandle creates MsgHandle zinxRole: IServer

()

// newMsgHandle creates MsgHandle
// zinxRole: IServer
func newMsgHandle() *MsgHandle {
	var freeWorkers map[uint32]struct{}
	var extraFreeWorkers map[uint32]struct{}

	if zconf.GlobalObject.WorkerMode == zconf.WorkerModeBind {
		// Assign a workder to each link, avoid interactions when multiple links are processed by the same worker
		// MaxWorkerTaskLen can also be reduced, for example, 50
		// 为每个连接分配一个workder，避免同一worker处理多个连接时的互相影响
		// 同时可以减小MaxWorkerTaskLen，比如50，因为每个worker的负担减轻了
		zconf.GlobalObject.WorkerPoolSize = uint32(zconf.GlobalObject.MaxConn)
		freeWorkers = make(map[uint32]struct{}, zconf.GlobalObject.WorkerPoolSize)
		for i := uint32(0); i < zconf.GlobalObject.WorkerPoolSize; i++ {
			freeWorkers[i] = struct{}{}
		}
	}

	TaskQueueLen := zconf.GlobalObject.WorkerPoolSize

	if zconf.GlobalObject.WorkerMode == zconf.WorkerModeDynamicBind {
		zlog.Ins().DebugF("WorkerMode = %s", zconf.WorkerModeDynamicBind)
		freeWorkers = make(map[uint32]struct{}, zconf.GlobalObject.WorkerPoolSize)
		for i := uint32(0); i < zconf.GlobalObject.WorkerPoolSize; i++ {
			freeWorkers[i] = struct{}{}
		}

		extraFreeWorkers = make(map[uint32]struct{}, zconf.GlobalObject.MaxConn-int(zconf.GlobalObject.WorkerPoolSize))
		for i := zconf.GlobalObject.WorkerPoolSize; i < uint32(zconf.GlobalObject.MaxConn); i++ {
			extraFreeWorkers[i] = struct{}{}
		}
		TaskQueueLen = uint32(zconf.GlobalObject.MaxConn)
	}

	handle := &MsgHandle{
		Apis:         make(map[uint32]ziface.IRouter),
		RouterSlices: NewRouterSlices(),
		freeWorkers:  freeWorkers,
		builder:      newChainBuilder(),
		// 可额外临时分配的workerID集合
		extraFreeWorkers: extraFreeWorkers,
	}

	// server
	handle.WorkerPoolSize = zconf.GlobalObject.WorkerPoolSize
	// One worker corresponds to one queue (一个worker对应一个queue)
	handle.TaskQueue = make([]chan ziface.IRequest, TaskQueueLen)

	// It is necessary to add the MsgHandle to the responsibility chain here, and it is the last link in the responsibility chain. After decoding in the MsgHandle, data distribution is done by router
	// (此处必须把 msghandler 添加到责任链中，并且是责任链最后一环，在msghandler中进行解码后由router做数据分发)
	handle.builder.Tail(handle)
	return handle
}

// newCliMsgHandle creates MsgHandle
// zinxRole: IClient