What are the benefits of golang channel

#The advantage of golang channel is that it avoids complex locking mechanisms under race conditions by providing atomic communication primitives.

channel

A channel is a communication mechanism that allows one goroutine to send specific values ​​to another gouroutine. (Recommended study: go)

can be understood as a conduit for transmitting a certain type of value, and the type passed in the channel becomes the element type of the channel.

A reference to a data structure created using make. When channel is used as a parameter, it is actually the zero value of the

channel call by reference: nil

Channel can be regarded as a FIFO queue. Reading and writing to the FIFO queue are atomic operations and do not require locking. The results of the operation behavior of the channel are summarized as follows:

#When reading a closed channel, the zero value of the corresponding type can always be read. In order to The difference in behavior of reading non-null unclosed channels can be achieved by using two receiving values:

// ok is false when ch is closedv, ok := <-ch

Most types in golang are value types (only slice/channel/map are reference types), read/write types When it is a value type channel, if the element size is relatively large, pointers should be used instead to avoid frequent memory copy overhead.

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