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unbuffered remote process I/O
From: |
Felipe Lema |
Subject: |
unbuffered remote process I/O |
Date: |
Wed, 13 May 2020 14:52:54 -0400 |
Sup, yo
I'm having some trouble with a Tramp-remote process created using
`make-process` and it's 27's :file-handler parameter. It seems that the
Emacs process is not receiving input bytes or not receiving output
bytes because of buffering.
Context
-------
I'm working on tramp support for the eglot package[1]. eglot is a
bridge between a LSP server and Emacs, translating events from either
side to the other using msgpack-rpc through stdin and stdout.
After starting the process, eglot rpc-calls for an initialization
methods (ie: sends bytes) and expects a result (ie: reads bytes)
within, let's say, 30s.
WIP
---
It seems that the remote process is not answering either because
- the rpc-call is not getting to the remote process because
somewhere there is some buffering
- the answer is not being received by Emacs because of some buffering
I tried running the LSP initialization using `tramp-verbose` at 9 and
10, but after running for like 30min I stopped the execution and got
nothing eglot related in the tramp-debug-messages buffer.
I also tried using the following without luck [2]:
- adding `-tt` to ssh command in tramp (through tramp-methods)
- `stdbuf -i0 -o0 -e0 my_lsp` as command (instead of plain `my_lsp`)
- set `process-adaptive-read-buffering` to `nil`
- set `process-connection-type` to `nil`
What now? halp
--------------
I don't know how to proceed in order to have unbuffered reads/writes
and (hopefully) get remote eglot functionality going.
Any help or insights are much appreciated.
Thanks
Felipe
[1] = https://github.com/joaotavora/eglot/pull/463
[2] = https://github.com/joaotavora/eglot/pull/463#issuecomment-6275597
92
- unbuffered remote process I/O,
Felipe Lema <=
- Re: unbuffered remote process I/O, Michael Albinus, 2020/05/15
- Re: unbuffered remote process I/O, Felipe Lema, 2020/05/15
- Re: unbuffered remote process I/O, Michael Albinus, 2020/05/15
- Re: unbuffered remote process I/O, Felipe Lema, 2020/05/19
- Re: unbuffered remote process I/O, Michael Albinus, 2020/05/20
- Re: unbuffered remote process I/O, Felipe Lema, 2020/05/21
- Re: unbuffered remote process I/O, Michael Albinus, 2020/05/31