Custom name_attach

QNX Newsgroups (Archives) qnx.rtos
1

I require a custom name_attach to be able to set the _NTO_CHF_REPLY_LEN
and _NTO_CHF_SENDER_LEN flags. How do I go about it?

I use the MsgReceive/MsgReply functions to handle my inter-process
communications. Perhaps there is another elegant way of telling a client
what the server’s channel id is, then I can use ChannelCreate.

Francois

2

Francois Joubert <sommerfj@webmail.co.za> wrote:

I require a custom name_attach to be able to set the _NTO_CHF_REPLY_LEN
and _NTO_CHF_SENDER_LEN flags. How do I go about it?

I use the MsgReceive/MsgReply functions to handle my inter-process
communications. Perhaps there is another elegant way of telling a client
what the server’s channel id is, then I can use ChannelCreate.

Try:

chid = ChannelCreate(cflags);
dpp = _dispatch_create(chid, dflags);
name_attach(dpp, path, nflags);

Yes, _dispatch_create() is not documented.

-David

David Gibbs
QNX Training Services
dagibbs@qnx.com

3

David Gibbs wrote:

Francois Joubert <> sommerfj@webmail.co.za> > wrote:

I require a custom name_attach to be able to set the _NTO_CHF_REPLY_LEN
and _NTO_CHF_SENDER_LEN flags. How do I go about it?


I use the MsgReceive/MsgReply functions to handle my inter-process
communications. Perhaps there is another elegant way of telling a client
what the server’s channel id is, then I can use ChannelCreate.


Try:

chid = ChannelCreate(cflags);
dpp = _dispatch_create(chid, dflags);
name_attach(dpp, path, nflags);

Yes, _dispatch_create() is not documented.

-David
Can I assume the _dispatch_create prototype to be?

dispatch_t * _dispatch_create(int chid, int dflags);

Just to stop my compiler from complaining!

Francois

4

Francois Joubert <sommerfj@webmail.co.za> wrote:

David Gibbs wrote:
Francois Joubert <> sommerfj@webmail.co.za> > wrote:

I require a custom name_attach to be able to set the _NTO_CHF_REPLY_LEN
and _NTO_CHF_SENDER_LEN flags. How do I go about it?


I use the MsgReceive/MsgReply functions to handle my inter-process
communications. Perhaps there is another elegant way of telling a client
what the server’s channel id is, then I can use ChannelCreate.


Try:

chid = ChannelCreate(cflags);
dpp = _dispatch_create(chid, dflags);
name_attach(dpp, path, nflags);

Yes, _dispatch_create() is not documented.

-David
Can I assume the _dispatch_create prototype to be?
dispatch_t * _dispatch_create(int chid, int dflags);

Just to stop my compiler from complaining!

Yes. Compilers are SO whiny, aren’t they?

-David

David Gibbs
QNX Training Services
dagibbs@qnx.com