CODEWITHSUNDEEP
erlangbittorrentgen-tcp
sakray
sakray

Reputation: 21

What is erlang emsgsize?

Our school project is a BitTorrent client. Today i suddenly got a {tcp_error,#Port<0.2095>,emsgsize} error and my question is what caused this error? I have option {packet,4} on gen_tcp so my guess is that the length off the package does not match the 4 first bytes? That would be really strange because all BitTorrent messages except for the handshake have first 4 bytes len. Yesterday we were able to download and now i get these messages. Note that some messages arrives just fine. Thanks for your thoughts on the problem.

Upvotes: 1

Views: 1252

Answers (2)

r3m0t
r3m0t

Reputation: 1870

Probably one of the packets is not sent with the correct header, which Erlang is interpreting as a header that claims the packet is very large.

Upvotes: -1

sg2342
sg2342

Reputation: 61

you will get an emsgsize error when the packet is bigger than your receive buffer (recbuf option) or when the packet is bigger than the specified maximum packet size (packet_size options).

Upvotes: 2

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