The Geolocation service provides the current location of the client based on its IP address.
Upon receipt of a location request message from the client, the Geolocation service queries http://www.hostip.info to get the current location, based on the client's IP address. The correctness of the result depends on the contents of the database that hostip.info provides. If the client's IP isn't in the database, an incorrect location might be returned.
(exec 3<>/pps/services/geolocation/control?wait && echo 'msg::
location\nid::test\ndat:json:
{"period":5.0,"provider":"network","fix_type":"wifi"}
' >&3 &&
cat <&3)
where period specifies the interval between updates from the server. If the period is 0 then the update is provided only once.
The Geolocation service responds to the client in the following format in the control object:
@control
res::location
id::test
dat:json:{"accuracy":60,"latitude":45.3333,"longitude":-75.9}
The QNX CAR browser also uses the Geolocation service to query the location as shown above.
The Geolocation service is multithreaded and can handle requests from multiple clients at the same time.