socket.io-redis 如何处理房间？

Posted 2023-03-07

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【中文标题】socket.io-redis 如何处理房间？【英文标题】：How does socket.io-redis deal with rooms? 【发布时间】：2016-07-21 22:00:18 【问题描述】：

如果我有多个进程并且正在使用 socket.io-redis，那么当我使用io.to(room).emit(namespace, message); 时，这是否可以无缝且高效地处理？还是我误解了socket.io-redis的作用？

【问题讨论】：

从他们所说的socket.io/docs/using-multiple-nodes/…（...（甚至是某个房间里的每个人）...）看来是这样的。找出答案的最好方法是测试！ 【参考方案1】：

简而言之，据我所知这是-

io.to('room').emit('namespace', 'message');

意味着向'room'频道中的所有客户发送message，名为'namespace'，值为'message'，包括发件人.

详细信息（见here）-

 // send to current request socket client
 socket.emit('message', "this is a test");// Hasn't changed

 // sending to all clients, include sender
 io.sockets.emit('message', "this is a test"); // Old way, still compatible
 io.emit('message', 'this is a test');// New way, works only in 1.x

 // sending to all clients except sender
 socket.broadcast.emit('message', "this is a test");// Hasn't changed

 // sending to all clients in 'game' room(channel) except sender
 socket.broadcast.to('game').emit('message', 'nice game');// Hasn't changed

 // sending to all clients in 'game' room(channel), include sender
 io.sockets.in('game').emit('message', 'cool game');// Old way, DOES NOT WORK ANYMORE
 io.in('game').emit('message', 'cool game');// New way
 io.to('game').emit('message', 'cool game');// New way, "in" or "to" are the exact same: "And then simply use to or in (they are the same) when broadcasting or emitting:" from http://socket.io/docs/rooms-and-namespaces/

 // sending to individual socketid, socketid is like a room
 io.sockets.socket(socketid).emit('message', 'for your eyes only');// Old way, DOES NOT WORK ANYMORE
 socket.broadcast.to(socketid).emit('message', 'for your eyes only');// New way

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