Hello!
I've wrote netgraph node which collects some information from network. Now
I want to transfer collected data into user program. I've NGM_XXX_STAT
message which initiates data transfer and program which uses libnetgraph
to communicate with node. When I send NGM_XXX_STAT message node must
starts data transfer but I don't know exactly how much data should be
transfered so I can't use synhronous reply. Also, NgSendMsg(...,
NGM_XXX_STAT, ...) doesn't return until handler of NGM_XXX_STAT is
finished, so I can't use ng_send_msg() in NGM_XXX_STAT handler - nobody
will read sended messages and I finished up with "No buffer space
available".
The question is: how I can initiate smth. like asynchronous reply (so I
can get data via NgRecvMsg later in my prgram)? Or I'm going wrong way and
should use another scheme for data transfer? Data size ranges from 10Kb to
500Kb.
- Roman
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