sse | Server Sent Events server and client for Golang | Websocket library
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Server Sent Events server and client for Golang
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Lines of Code : 22License : Permissive (MIT License)
Copy@GetMapping("/stream-sse-mvc")
public SseEmitter streamSseMvc() {
SseEmitter emitter = new SseEmitter();
ExecutorService sseMvcExecutor = Executors.newSingleThreadExecutor();
sseMvcExecutor.execute(() -> {
public static void main(String... args) throws Exception {
Client client = ClientBuilder.newClient();
WebTarget target = client.target(url);
try (SseEventSource eventSource = SseEventSource.target(target).build()) {
public static String simpleSSEHeader() throws InterruptedException {
Client client = ClientBuilder.newBuilder()
.register(AddHeaderOnRequestFilter.class)
.build();
WebTarget webTarget = client.target(T Community Discussions
Trending Discussions on sse
QUESTION
I'm cross compiling bare metal 32-bit code for x86 with Rust and I'm facing the problem, that the final object file is empty, if the entry function is not exactly called _start; the linker throws all code away because it sees it as dead. I'm familiar with the fact, that _start is a well-known entry point name, but the question is still:
What part in Rust, LLVM or Linker forces this? Also attributes like extern "C" fn ..., #[no_mangle] or #[export_name = "foobar"] do not work (get thrown away by the linker). My guess is, that it's not the Rust compiler but the linker. As you can see, I use rust-lld as linker and ld.lld as linker-flavor in my case (see below).
- Where does the required
_start-come from? Why does the linker throw my other code away? - Whats the best option to specify my custom entry point to the linker?
x86-unknown-bare_metal.json
...ANSWER
Answered 2021-Jun-10 at 12:17New Answer [Solution]
The real solution is quite simple but was hard to find, because it's hard to digg for possible options and solutions in this relatively undocumented field. I found out, that llvm-ld uses the same options, as GNU ld. So I checked against the GNU ld link options and found the solution. It has to be
QUESTION
I just noticed absence of _mm256_insert_pd()/_mm256_insert_ps()/_mm_insert_pd(), also _mm_insert_ps() exists but with some weird usage pattern.
While _mm_insert_epi32() and _mm256_insert_epi32() and other integer variants exist.
Is it some intentional idea of Intel not to implement float/double variants for some reason? And what is the correct and most-performant way to set single float/double at given position (not only 0th) of SSE/AVX registers?
I implemented following AVX-double variant of insert, which works, but still maybe there is a better way to do this:
ANSWER
Answered 2021-Jun-10 at 08:55A scalar float/double is just the bottom element of an XMM/YMM register already, and there are various FP shuffle instructions including vinsertps and vmovlhps that can (in asm) do the insertion of a 32-bit or 64-bit element. There aren't versions of those which work on 256-bit YMM registers, though, and general 2-register shuffles aren't available until AVX-512, and only with a vector control.
Still much of the difficulty is in the intrinsics API, making it harder to get at the useful asm operations.
One not-bad way is to broadcast a scalar float or double and blend, partly because a broadcast is one of the ways that intrinsics already provide for getting a __m256d that contains your scalar1.
Immediate-blend instructions can efficiently replace one element of another vector, even in the high half2. They have good throughput and latency, and back-end port distribution, on most AVX CPUs. They require SSE4.1, but with AVX they're always available.
(See also Agner Fog's VectorClass Library (VCL) for C++ templates for replacing an element of a vector; with various SSE / AVX feature levels. Including with runtime-variable index, but often designed to optimize down to something good for compile-time constants, e.g. a switch on the index like in Vec4f::insert())
float into __m256
QUESTION
in my code "all" is the data taken from the sqalchemy database,now i am having another list "asked", In that list,name are of columns are stored of which details are required but when i run this code it give me an error: asked = ["S_NO", "FAIL_TIME", "RIGHT_TIME", "FAILURE_REMARKS"], when i run "all.S_NO" or "all["S_NO"]" it run's perfect. but the case I defined it gives me error
...ANSWER
Answered 2021-Jun-09 at 07:13It is always better to do complex logic part in flask itself rather than in template.
Use this to get the values of database and to pass it to template:
QUESTION
This is the function i have written
...ANSWER
Answered 2021-Jun-04 at 16:19It looks like you are expecting the function to change the object that you are passing to it in the parent environment. This is fundamentally not how R works.
One workaround would be to return data1 at the end of your function and assign it when called:
QUESTION
I want to get a list of values updated whenever its value is changed through a hook setState function, however I am getting an error I don't know why... I am getting a .map is not a function TypeError
Down bellow is my code and I also have a codesandbox link: https://codesandbox.io/s/fervent-satoshi-zjbpg?file=/src/Incomes.js:23-1551
...ANSWER
Answered 2021-Jun-01 at 21:38Replace this line:
QUESTION
I am working on a C++ intrinsic wrapper for x64 and neon. I want my functions to be constexpr. My motivation is similar to Constexpr and SSE intrinsics, but #pragma omp simd and intrinsics may not be supported by the compiler (GCC) in a constexpr function. The following code is just a demonstration (auto-vectorization is good enough for addition).
...ANSWER
Answered 2021-Jun-01 at 14:43Using std::is_constant_evaluated, you can get exactly what you want:
QUESTION
I use NextJS API interfaces as Server Sent Events as follows:
...ANSWER
Answered 2021-May-31 at 11:43To disable the warnings you can add a custom config to your API route with externalResolver set to true.
externalResolveris an explicit flag that tells the server that this route is being handled by an external resolver like express or connect. Enabling this option disables warnings for unresolved requests.
QUESTION
this is yet another SSE is slower than normal code! Why? type of question.
I know that there are a bunch of similar questions but they don't seem to match my situation.
I am trying to implement Miller-Rabin primality test with Montgomery Modular Multiplication for fast modulo operations.
I tried to implement it in both scalar and SIMD way and it turns out that the SIMD version was around 10% slower.
that [esp+16] or [esp+12] is pointing to the modulo inverse of N if there's anyone wondering.
I am really puzzled over the fact that a supposedly 1 Latency 1c Throughput 1uops instruction psrldq takes more than 3 Latency 0.5c Throughput 1uops pmuludq.
Below is the code and the run time analysis on visual studio ran on Ryzen 5 3600.
Any idea on how to improve SIMD code and/or why is it slower than a scalar code is appreciated.
P.S. Seems like the run time analysis is off by one instruction for some reason
EDIT 1: the comment on the image was wrong, I attached a fixed version below:
...ANSWER
Answered 2021-May-30 at 16:13- Your SIMD code wastes time mispredicting that test ebp, 1 / jnz branch. There’s no conditional move instruction in SSE, but you can still optimize away that test + branch with a few more instructions like this:
QUESTION
This is my goodness of fit test:
...ANSWER
Answered 2021-May-28 at 14:06Try parallel = FALSE inside parboot().
Documentation: https://www.rdocumentation.org/packages/unmarked/versions/1.1.0/topics/parboot
QUESTION
I am trying to great a weather app using The Weather API. I have managed to get the information that I need from the JSON and display it in HTML.
I would not like to get the hourly weather from the JSON and display it from each hour. I thought about doing this within a loop and displaying it that way but am unsure how to write it.
Here is the JSON
...ANSWER
Answered 2021-May-27 at 10:14Try JSON.parse using the reviver parameter - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#using_the_reviver_parameter
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