> On Oct 25, 2018, at 10:10, Chen Cong <[email protected]> wrote:
>
> Hi,
>
> I use libuv to build a high throughput udp server , and I have some
> questions about libuv.
>
> 1. using "uv_udp_send" or "uv_udp_try_send" ? I use "uv_udp_try_send" now
> , and it seems that "uv_udp_try_send" is thread-safe.
>
It’s not. Even if it may coincidentally be, that’s en implementation detail.
All APIs are thread-UNsafe unsafe unless stated otherwise.
> 2. if "uv_udp_try_send" is better , how can I use it to send packet ? I know
> "uv_udp_try_send" is not thread-safe, and I find a related thread. I want to
> know if PC-capable pipe server is still a good way to solve this situation.
>
I don’t understand the question. One is not better than the other, they server
different purposes. uv_udp_try_send will not queue data so you can call it with
a stack allocated buffer for example. When using uv_udp_send, the request needs
to “survive” until the callback is called.
The typical use case is to try to send the packet with try_send, and if it
doesn’t succeed, send it with the regular send.
I don’t understand why you mix threads with these APIs.
Cheers,
--
Saúl
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