Handbook on Mobile and Ubiquitous Computing

A Modular Software Architecture

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621

/

*

Module ID, usually filled upon

module initialization

*

/

int module_id;

marnetd_route_t route;

marnetd_addr_t some_destination;

struct timeval

*

route_age;

[...]

if (marnetd_get_route(some_destination, &route)) {

/

*

route is known, add attribute

*

/

marnetd_add_route_info(&route, module_id, route_age);

}

else {

/

*

route unknown

*

/

}

Figure 25.13 Adding custom attributes to routes.

may thus be realized as a struct defined by the module programmer which then may contain

arbitrary data.

Beyond that, route table management includes a configurable “route arbitration” mechanism

to resolve conflicts created by the execution of multiple protocol ...