Hi, sorry for the late reply. Thank you for this bug report.
The bug is fixed in the last git version. Will be fixed in next 1.4.5 Daniel Le 27/01/2015 12:44, fx.n...@free.fr a écrit :
Dear Daniel, I am working on a specific http server for gnu prolog (1.4.4), and i discovered a strange comportment under windows 7 (32) with the select/5 predicate. The simple test below works fine on a OSX (maybe all unix) system but will return a system error under Windos 7 (32) , "Bad File Descriptor": ERROR : Failed to start server : error(system_error(Bad file descriptor),select/5) To test, launch one of the two test cases and open an internet browser to http://127.0.0.1:8080/ for example, or change the 127.0.0.1 by your IP. %- Program Test with Select ----------------------------------- worker_run(Socket, Client, StreamIn, StreamOut):- write('i am a working worker ...'), nl. server_test_with_select:- socket('AF_INET', Socket), socket_bind(Socket, 'AF_INET'(Host, 8080)), socket_listen(Socket,10), catch( server_loop_with_select(Socket),E, ( socket_close(Socket), format( "ERROR : Failed to start server : ~w~n", [E] ) )). server_loop_with_select(Socket):- repeat, select([Socket],ReadyReads,[Socket],[],0), worker_run(Socket, Client, StreamIn, StreamOut), fail. %- End of Program Test with Select ----------------------------------- When not using usefull select/5 and directly use the socket_accept/4 predicate the server works well. %- Program Test without Select ----------------------------------- worker_run(Socket, Client, StreamIn, StreamOut):- write('i am a working worker ...'), nl. server_test_without_select:- socket('AF_INET', Socket), socket_bind(Socket, 'AF_INET'(Host, 8080)), socket_listen(Socket,10), catch( server_loop_without_select(Socket),E, ( socket_close(Socket), format( "ERROR : Failed to start server : ~w~n", [E] ) )). server_loop_without_select(Socket):- repeat, socket_accept(Socket, Client, StreamIn, StreamOut), worker_run(Socket, Client, StreamIn, StreamOut), fail. %- End of Program Test without Select ----------------------------------- Is it a known bug and did you plan to fix it in a future version ? Best Regards, Fx NION. _______________________________________________ Bug-prolog mailing list Bug-prolog@gnu.org https://lists.gnu.org/mailman/listinfo/bug-prolog
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