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@shadowfaxenator
Жыл бұрын
The main point of buffered channels is not to solve dead lock issue, if you use different goroutines to write and read from a channel you’ll never get a deadlock, but what a buffer can help you is to control the amount of consumers (goroutines) to process channel values. This can be used for example to protect your program from goroutine overflow, or make it more efficient to use an exact amount of cpu cores == num of goroutines if you want to process CPU bound tasks from channels.
@anthonygg_
Жыл бұрын
True
@jondoe79
Жыл бұрын
Anthony is a pinnacle of golang. Short, functional, completely effective and right to the point
@okhrimenko
Жыл бұрын
Anthony, IMHO it's worth to mention, that buffered channels have send and receive queues, but unbuffered ones tries to write the value directly from sender to receiver. And if there's no receiver during send operation it just panics.
@__amkhrjee__
2 ай бұрын
Very clear & concise explanation. Thanks!
@TomDoesTech
Жыл бұрын
This was awesome! From what I understand, you're right, it's best to start off from an unbuffered channel and then create a buffered if/when you need it.
@thecodepod
6 күн бұрын
So basically Unbuffered channels: whenever someone tries to write to an unbuffered channel that call blocks until someone else is ready to read whatever was sent through that channel, since main runs in a goroutine it blocks waiting for someone else to read the value which never happens hence the panic. Buffered channels: write and forget, regardless of whether someone is ready to read from the channel or not.
@thanhdatvo0
Жыл бұрын
Please correct me if I'm wrong here: One reason to use buffered channel is because we want to cancel other goroutines, using context.Done(), or context.Err(), if there is a error happens in one goroutine. At this point in time, for the buffered channels, because they don't need to be close, so any go routine use buffered channel could be stopped, by calling return. For unbuffer channels, you have to close all channels after checking context.Done() or context.Err() not nil, so that go routines that wait for unbuffered channel could be stopped. The interesting here is that since there could be mutilple checking points for context.Done() or context.Err() in one go routine, for unbuffered channel, you have to repeat a lot of channel closing code, while for buffered channel, you just simply return, to close that go routine. I am just new to go routine and using context to cancel go routine, and this is what I observed.
@alexandrucomanescu9857
Жыл бұрын
A few weeks ago I had some thoughts to start learning Go. Your videos help a lot, so that's what really motivated me.
@anthonygg_
Жыл бұрын
Keep going my man!
@thanhdatvo0
Жыл бұрын
I'm also so hungry when hearing you talking about cookies :D
@sfincione2000
Жыл бұрын
Maybe the answer to the "how big does the buffer param number need to be?" question is, like you said, depending on how long you expect the writing to the channel to be going on before you get consumers on the other side. For example, if you know how many consumers you have, use that number as the value in your channel.
@tawseefbhat977
Жыл бұрын
thanks for this tutorial on golang... need to know about mutex
@anthonygg_
Жыл бұрын
Think I have video on that
@cafebean
Жыл бұрын
my guy eradicated the cookie pox like it's nothing
@sovrinfo
Жыл бұрын
Awesome, Big Thanks!
@issm6685
Жыл бұрын
buffered channel life is easy. put a cookie and call it a day!
@sirajul-anik
11 ай бұрын
Cookie example 💯💯
@manojsinghnegi1565
11 ай бұрын
Got it Master 😅
@alexmeh1919
8 ай бұрын
👍👍👍
@prajapati_omkar
Жыл бұрын
Anthony GG build Complete Backend in Go Fiber framework, so that we can compare with weavebox.
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