[Flex-help] flex internal error - end of buffer missed

[Derek C. <der...@gm...>]

Hello all,

I am getting the error about end of buffer missed when trying to parse a
buffer that is filled  from a socket connection.

Do I need to manually append a \0 to the end of that buffer?

Some background on what I am doing:

I have threads that are recieving HTTP traffic. I am using lex to parse
some of the HTTP requests. This means I have multiple threads calling

yy_scan_bytes(&buf, buf_size);
yylex();


In my scanner, I have a this rule:

 <<EOF>> {yyterminate(); yy_delete_buffer(YY_CURRENT_BUFFER);}


Is this the right approach? My understanding was that yy_scan_bytes made a
copy of the buffer, so I wanted a rule in my EOF to delete that copy. Do I
need to do anything else as part of the EOF rule?

Do I need a mutex around calls to yylex() since I am using this in a
threaded environment?

Thanks for answering my questions..I think I am sold on how lex works..its
bene pretty easy to get parsing the right things out of the input, ive just
run into a few small snags.