CODEWITHSUNDEEP
javasockets
Kumar
Kumar

Reputation: 626

What is meant by end of stream reached in inputstream.read()?

my android smartphone is tcpclient and chipkit wf32 wifi module is my tcp server.

int bytesRead;
InputStream inputStream = socket.getInputStream();

while ((bytesRead = inputStream.read(buffer)) != -1){
       byteArrayOutputStream.write(buffer, 0, bytesRead);
       response += byteArrayOutputStream.toString("UTF-8");
     }

The above code reads the data from stream and copies to buffer. If no data is coming it will block. But sometimes i am getting -1. Can anyone explains the reason for getting -1? In document it is mentioned "end of stream is reached". But can you explain the meaning of that? thank you.

Upvotes: 1

Views: 3794

Answers (1)

user207421
user207421

Reputation: 310884

In the case of a socket, it means that the peer closed its end of the connection, or at least shut it down for output.

NB

response += byteArrayOutputStream.toString("UTF-8");

should be outside the loop. I've told you that before, in another of your numerous threads on this topic.

Upvotes: 4

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