Also, you might find something like nats.io simplifies you’re effort. I’m not
sure if it supports extremely large message sizes off hand, but there is
probably a chunking layer available. Doing simple TCP messaging is fairly easy,
when you get into redundancy, fan-out, etc is can get complex fast, so using a
messaging library may help.
> On Dec 31, 2019, at 10:37 AM, Robert Engels <reng...@ix.netcom.com> wrote:
>
>
> All of the source is there... but in general it is a bit more complex under
> the covers than most - as it uses select/poll to know when a socket is ready
> for IO then schedules the routine in the Read() to perform the IO. So Go has
> a bit of its own kernel code than you would see in typical synchronous C
> socket code. Ultimately Read() becomes a standard read() on the socket
> descriptor.
>
>>> On Dec 31, 2019, at 10:03 AM, Ron Wahler <ron.wah...@gmail.com> wrote:
>>>
>>
>> \\One other note, if you have a request / response type protocol with fairly
>> defined lengths, you don’t need a buffer larger than the largest message if
>> you don’t allow concurrent requests from the same client.
>>
>> Yes, understood, that was not the constraint, I have to process an unknown
>> amount of bytes, so I have been just trying to make sure I had the best
>> solution.
>>
>> I would still like to read the underlying GoLang code on Read() to see what
>> assumptions it makes to the system calls.
>>
>> thanks,
>> Ron
>>
>>> On Friday, December 27, 2019 at 5:11:42 PM UTC-7, Ron Wahler wrote:
>>> I am looking for a net.conn standard read that would return a data buffer
>>> the exact size of the read. I am trying to read an unknown amount of byte
>>> data from the connection. With the read i am using I am required to
>>> pre-allocate a buffer and pass that buffer to the read. I am looking for a
>>> read that works more like the ReadString , but is for a byte slice.
>>>
>>> // I want something similar to this read that returns the read string into
>>> the message string.
>>> message, err := bufio.NewReader(ServerConn).ReadString('\n')
>>>
>>> if ( err != nil ){
>>>
>>> fmt.Println("RELAY: ERROR: Reg Message read err:",
>>> err)
>>>
>>> return
>>>
>>> }
>>>
>>>
>>>
>>>
>>>
>>> // had to preallocate a buffer, but I want a read to return me a buffer so
>>> I don't have to guess how big to make it.
>>>
>>> buf := make([]byte, 1024*32)
>>>
>>> // READ FROM CLIENT
>>>
>>> nBytes, err := Csrc.Read(buf)
>>>
>>>
>>>
>>>
>>>
>>> Is this not possible, I have not seen any examples that would indicate that
>>> there is a standard library that would do something like what I am looking
>>> for.
>>>
>>>
>>>
>>> thanks,
>>>
>>> Ron
>>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "golang-nuts" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to golang-nuts+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/golang-nuts/24a6f6bd-8948-434c-bb83-c663d75bb23d%40googlegroups.com.
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/golang-nuts/113814DD-0320-4B19-ADB4-21E6ECF553BC%40ix.netcom.com.
