Hi there,
Is it possible to write a dynamic loaded C function as an UDP or TCP server?
What we want to do it is:
Add a search function which send a UDP package to remote UDP server
and then listen to an UDP port, waiting for the result.
Ideally, we don't close the UDP server after the search quer
On Thu, 18 Oct 2007 10:55:19 -0400
"Billow Gao" <[EMAIL PROTECTED]> wrote:
> Is it possible to write a dynamic loaded C function as an UDP or TCP
server?
>
> What we want to do it is:
> Add a search function which send a UDP package to remote UDP server
> and then
Cain <[EMAIL PROTECTED]> wrote:
>
> On Thu, 18 Oct 2007 11:24:24 -0400
> "Billow Gao" <[EMAIL PROTECTED]> wrote:
> > I can write the network program.
> > But I am not 100% sure whether I can add the c-language function (
> > http://www.postgresql.
I can return multiple strings w/o problem.
But if I tried to return multiple bytea rows. It only return 10 rows with
empty data.
Please see the code below.
Also, when I compile it, I had warning:
test.c:121: warning: assignment makes pointer from integer without a cast
The line is:
tuple = heap_f
A very simple C function which I copied from the manual.
And I found that it's called twice.
Even in the function:
if (SRF_IS_FIRSTCALL()) {
ereport(INFO, (errcode(ERRCODE_IO_ERROR), errmsg("1")));
}
An example output. You will find two INFO: 1 there..
Why a function is called twice and how
