RE: ILE RPG SOCKET PROTOTYPES

[Tim McCarthy <TimM@xxxxxxxxxxxxxxxxxx>]

I can't answer your prototype question but I can offer a little advice
regarding the "send an entire file with one API call". I've seen a
number of socket utilities that enable you to send a file in one shot.
What they do is simply open a port, start sending the file and then shut
the port. DON'T DO THIS. In a TCP connection (obviously UDP is
different), design a transfer to be conversational - don't squirt data
at a remote and assume it got there. Just because your program thinks
it's successfully opened a port doesn't mean you're connected to the
remote application - firewalls, proxy servers etc will acknowledge a
port open request even though you're not connected to the intended
destination. Data squirted at this port may be lost if the connection is
never established and you may never know. When you open a port on a
remote, wait for some form of acknowledgement before continuing. After
sending a file, wait for a response to indicate receipt before you
decide everything's ok.     

TrailBlazer Systems, Inc.
http://www.softwarejungle.com
AS/400 E-Commerce Solutions

Chaos, panic, & disorder - my work here is done.

> -----Original Message-----
> From: David Anderson [SMTP:DaveTheWiz@worldnet.att.net]
> Sent: Thursday, August 12, 1999 10:58 PM
> To:   MIDRANGE-L@midrange.com
> Subject:      ILE RPG SOCKET PROTOTYPES
> 
> Does anyone have a working example of socket prototypes for
>     send_file and accept_and_receive.
> 
> I would rather send an entire file with one API call.
> 
> I've already tried to use the links in the manual OS/400 Sockets
> Programming V4R3, but where the tell you to go doesn't exist.  I don't
> mind doing it myself, so if
> someone could point me in the right direction I'd appreciate it.
> 
> Thanks in advance,
> 
> Dave Anderson
> Sr. Programmer/Analyst
> SYSCO Food Services of Los Angeles
> 
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