Client Offline   

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Offline Client

In some situations the layered extrospection log files created by our players were not enough to understand what was really happening in a certain situation. In these situations employing our offline client tool enabled a much finer debugging degree. The principle of the offline client is that we can repeat the execution of a player over exactly the same setting of a previous game, and then we can use a normal debugger (like gdb) to examine the contents of all variables, set breakpoints in the program code, etc. A special log file, that records every interaction with the server and the occurrence of timer signals, must be generated to use the offline client. To repeat the execution of a player, a stub routine was implemented that reads the log file previously mentioned instead of reading the network. Player’s behaviour is maintained as it is not affected by the substitution of this stub routine and the execution of a normal debugger over this offline client allows a very fine tracking of what happened. This is especially useful to debug low-level code bugs.

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