[Tsp-devel] EIF TSP: tsp_consumer_request_sample_destroy

[ZXOPESOGE001, Ext]

Hello,

I'm working on project EIF_TSP with Virginie ALAUX (EADS-ASTRIUM) and I have some problems with TSP protocol.

The EIF_TSP must do the following actions:
 -> Try to connect to the provider, get the available TSP symbols of provider
-> the user selects the list of TSPsymbols he wants to get using their name
--> the user launchs the sampling acquisition cycle
During the sampling, the user can:

*       send a re-initialisation request  to begin a new acquisition cycle (with different TSP symbols).

In this way, in a first time, I would like to have a loop for getting sample values from provider.(Theses values have been asked by user).Then, I would like to reset the list of symbols wanted by user.(stop the sampling sequence).The user can ask  new parameter he wants to acquire. Finally, i would like to launch a new acquisition cycle (without disconnection to provider).

To do this, I programm the following steps:
1. connection to provider
TSP_consumer_connect_url()
TSP_consumer_request_open(_provider, 0, NULL)
TSP_consumer_request_information(_provider)
information = TSP_consumer_get_information(_provider) (to have tle list of available symbols)
2.user builds the list of parameters he wants to acquired
--> the list of symbols : _symbols
TSP_consumer_request_sample(_provider,&_symbols);
3.start sampling sequence
TSP_consumer_request_sample_init(_provider, 0, 0)
4.read sample (loop)
tsp_consumer_read_sample()
5.reset the list of parameters he wants to acquired
tsp_consumer_request_sample_destroy(_provider)
6.user builds a new list of parameters and start sampling sequence
TSP_consumer_request_sample(_provider,&_symbols);
TSP_consumer_request_sample_init(_provider, 0, 0);
tsp_consumer_read_sample();

My TSP problem:
When i tell the provider to stop sending sample on calling tsp_consumer_request_sample_destroy, i have the following stracedebug():

/tsp_stream_sender.c##TSP_streamer_sender_thread_sender##200: End of fifo thread stream sender
/tsp_session.c##TSP_get_session##117: Channel_id = <0> is session Idx <0>
 /tsp_session.c##TSP_get_session##117: Channel_id = <0> is session Idx <0>
/tsp_session.c##TSP_get_session##117: Channel_id = <0> is session Idx <0>
/tsp_session.c##TSP_session_close_session##164: Request Closing session channel_id = 0
/tsp_session.c##TSP_get_session##117: Channel_id = <0> is session Idx <0>
 /tsp_session.c##TSP_session_close_session##173: X_session_nb now = 0.
In this way, it's impossible to ask a new cycle of sampling  because the session is closed.
What kind of tsp requests can I use to stop a sampling acquisition cyle without close the connection and then restart a new acquisition?

Thanks
Sarah Montigaud

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