Creating the channel
QNX SDP8.0Getting Started with the QNX OSDeveloperUser
This implies that the server has to create a channel—this is the thing that the client connected to when it issued the ConnectAttach() function call. Once the channel has been created, the server usually leaves it up forever.
The channel gets created via the
ChannelCreate()
function, and destroyed via the
ChannelDestroy()
function:
#include <sys/neutrino.h>
int ChannelCreate (unsigned flags);
int ChannelDestroy (int chid);
We'll come back to the flags argument later
(in the
Channel flagssection, below). For now, let's just use a 0. Therefore, to create a channel, the server issues:
int chid;
chid = ChannelCreate (0);
So we have a channel. At this point, clients could connect (via ConnectAttach()) to this channel and start sending messages:
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