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Can’t seem to find anything about input stream “blocking” that describes both what it is and when it occurs. Is this some type of multi-thread prevention of concurrent threads accessing the same stream?
On that note, when two concurrent threads access the same stream at the same time, can this cause problems, or do both threads get their own stream pointers? Obviously, one would need to wait, but hopefully it wouldn’t lead to an unchecked exception.
In the context of input streams, “blocking” typically refers to the stream waiting for more data becoming available. The term would probably make more sense if you think about sockets rather than files.
If you have multiple threads concurrently reading from the same stream, you have to do your own synchronization. There are no thread-specific “stream pointers”. Again, think about multiple threads reading from the same socket (rather than from a file).