I encountered a deadlock when reading from a buffered channel.
The deadlock occurs when an attempt is made to read from the channel twice,
without an intermediate write to the channel.
The problematic code is as follows:
func main() {
myInt := 432
readerChan := make(chan int, 3)
for forI := 0; forI <= 10000; forI++ {
readerChan <- myInt
fmt.Printf("%d:", <- readerChan)
fmt.Printf("%d:", <- readerChan)
}
close(readerChan)
}
The first read from variable readerChan succeeds.
The second read from variable readerChan results in a deadlock.
I have two links to playground.
The first link is the problematic code.
The second link is for similar code that has an intervening write to the
channel.
I understand that a buffered channel allows a queue of results to be stored
from other Go routines writing to the channel.
But, the code is attempting multiple read operations.
Looking for a technical explanation to help me better understand this
particular case.
Thanks in advance ...
The problematic playground link : https://play.golang.org/p/veo7phAZzMv
The working playground link : https://play.golang.org/p/qvYZNN9keqN
THANX(MKD).
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