|
FAST Protocol
< Previous Next >
Presence Map
Hei Chan / N/A
11 Jan 2010 5:19AM ET Hi,
I am trying to understand the presence map better.
When I connect to my provider, the first byte I received is 0xC0, which is the presence map.
The first bit after the stop bit is 1 (0xC0=11000000), indicating the template ID exists.
And it does exist right after this byte (presence map).
My question is -- does 0xC0 here indicate that none of the fields in that specific template exists (since the remaining bits are zeros in the presence map)?
However, the template has only 2 fields and 1 of them is mandatory:
<string name="Sender" id="10000"></string>
<string name="VendorID" presence="optional" id="10001"></string>
Am I missing something?
Thanks in advance!
Presence Map
Hei Chan / N/A 11 Jan 2010 5:19AM ET
|
