[Info-vax] Help wanted : Porting code from Linux to VMS

[Dave Froble]

On 1/24/2019 6:52 PM, Arne Vajhøj wrote:
> On 1/23/2019 2:44 PM, Dave Froble wrote:
>> On 1/23/2019 2:03 PM, Arne Vajhøj wrote:
>>> On 1/23/2019 11:34 AM, Dave Froble wrote:
>>>> On 1/23/2019 9:16 AM, Craig A. Berry wrote:
>>>>> I will join the chorus of those saying to leave it in C.  But if you
>>>>> must, Neil Reick has examples of doing TCP/IP with $QIO calls in
>>>>> BASIC,
>>>>> which might be easier to read for someone who knows no C:
>>>>>
>>>>> <http://neilrieck.net/demo_vms_html/openvms_demo_index.html#ipstack>
>>>>>
>>>>> He's made of tougher stuff than I am -- when I had to do TCP/IP from
>>>>> BASIC I just wrote wrapper routines in C that presented dynamic string
>>>>> descriptors to BASIC.  If only there were an RTL that already did
>>>>> that.
>>>>
>>>> Actually, doing the whole thing in Basic using the QIO interface
>>>> taught me much more than if I just used the CRTL stuff.  I'm a firm
>>>> believer in understanding what one is trying to do.  The first
>>>> programs weer strictly a learning project.  An "echo server" and a
>>>> client.  After that implementing for production was rather easy.
>>>
>>> Just note that the C socket API is a standard and VMS $QIO(W)
>>> is not.
>>>
>>> So general TCP/IP documentation and various support forums
>>> are likely to describe things in terms of the C API.
>>
>> That, yes.  But my info is that the CRTL stuff is is implemented using
>> the QIO stuff.
>
> I believe that is correct.
>
>>                                So, I'm just cutting out the middleman.
>>
>> The documentation does a decent job, even if it uses C examples.  So,
>> no problem, right?
>
> How many example are available using $QIO(W)? Probably dozens.
>
> How many examples are available using socket API? Probably tens of
> thousands.
>
> Arne

Dozens of good examples are better than thousands of bad examples ...

:-)

-- 
David Froble                       Tel: 724-529-0450
Dave Froble Enterprises, Inc.      E-Mail: davef at tsoft-inc.com
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