I'd like to publish a message with a command line app and exit once I'm sure the messa

<a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/us

Question: Any way to guarantee pub.send delivery? about node-nanomsg HOT 6 CLOSED

nickdesaulniers commented on July 24, 2024

Question: Any way to guarantee pub.send delivery?

from node-nanomsg.

Comments (6)

nickdesaulniers commented on July 24, 2024

So if you set linger to 1000ms, node.js will exit before the message is sent? I'm not sure how setTimeout and family signal to node.js not to shutdown, but we can probably add that signaling mechanism. I'm curious if node's tcp stuff will wait to send then exit. We reuse the default uv loop when sending and receiving messages, signaling when we should read from a file descriptor.

node-nanomsg/src/node_nanomsg.cc

Lines 258 to 260 in f08bdd0

 uv_poll_init_socket(uv_default_loop(), &context->poll_handle, 

 context->sockfd); 

 uv_poll_start(&context->poll_handle, UV_READABLE, NanomsgReadable);

from node-nanomsg.

nickdesaulniers commented on July 24, 2024

Also, if you have a test case that shows the undesired behavior, that would be helpful.

from node-nanomsg.

reqshark commented on July 24, 2024

@bmoelk PUB messages are not guaranteed. You might try PUSH PULL.

from node-nanomsg.

nickdesaulniers commented on July 24, 2024

@reqshark can you cite that from the nanomsg man pages? I was not able to find a reference.

from node-nanomsg.

reqshark commented on July 24, 2024

ya totally, the docs are weak in a lot of places.

hmm, it might be in an issue or mailing list. i'll see if i can find it

from node-nanomsg.

bmoelk commented on July 24, 2024

Thanks for the info re: pub/sub, I'll use push/pull for my purposes. FWIW, here is a gist to reproduce the behavior: https://gist.github.com/bmoelk/7b4e90eee1c820345b1f

from node-nanomsg.

Recommend Projects