#42 Cannot profile application with unmanaged SIGTERM

[megurikuru]

Virtual NetManager (VNM) works together with VDE. When VNM stops running sub-programs (wirefilter, vde_switch, etc) sends SIGTERM (15). Inside VDE elements, at present, the default action with SIGTERM is to do a cleanup() , reattach the default signal management and execute default management of SIGTERM, that is SIGKILL. When profiling programs compiled with -gp, a clean exit is needed to correctly write the profiling information file (gmon.out). That means the program has to do a return from the main or execute exit(int);
I've fixed this doing a "if(sig==SIGTERM) exit(0);" inside the sig_handler function of the various programs (vde_switch,wirefilter,etc), just before the "kill(getpid(), sig);" line.

[megurikuru]

Errata corrige: the line "if(sig==SIGTERM) exit(0);" has to be inserted at the head of sig_handler function to avoid double cleanup call [this is because the use of atexit(cleanup); function in main].

[renzo davoli]

current svn includes a fix for all the commands.

[Nobody/Anonymous]

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