ACCEPTOR ERROR: resource is temporarily unavailable

Question

I am trying to create a single threaded server in linux (red-hut) in C that will listen on multiple sockets.

I need to use non-blocking sockets when I set flags as non-blocking:

int flagss = fcntl(socketfds[j],F_GETFL,0); 
flagss |= O_NONBLOCK;
fcntl(socketfds[j],F_SETFL,flagss);

I get:

ERROR on accept: Resource temporarily unavailable

Otherwise, everything works fine.

Answer 1

The resource is temporarily unavailable to EAGAIN, and this is not an error. This means: “I have no answer for you right now, and you told me not to wait, so I’m coming back without an answer.”

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