Home/ Questions/Q 573609
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-13T13:44:31+00:00

I get the return value of the read operation as 0 if the sockets

  • 0

I get the return value of the read operation as 0 if the sockets is non blocking, and the real number of bytes read if the socket is marked as blocking. cant understand why though …

this is on an embedded OS, but supposed to be Berkely sockets

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    a blocking read will wait until there’s data available to read. a non-blocking read will always return immediately (whether 0 bytes were available or more).

       Upon successful completion, recv() shall return the length of the mes-
   sage  in  bytes.  If  no messages are available to be received and the
   peer has performed an orderly shutdown, recv() shall return 0.  Other-
   wise, -1 shall be returned and errno set to indicate the error.
    • 0