openresty / openresty/lua-nginx-module
tcpsock:receive() returning boolean
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Description
openresty/1.21.4.1
I am seeing tcpsock:receive("*l") returning boolean true as data, no err or partial.
Trying to read again from the same socket returns err=socket busy reading
I do not see this boolean return as documented. What is happening here?
I am running this from resty cli, and using
sslhandhake
ngx.thread.spawn(connect__maby_sslhandshake__send__receive__setkeepalive)
code works fine single threaded
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Research direction
Start at the tcpsock:receive("*l") call in the resty CLI scenario, then reproduce the sequence with sslhandhake, ngx.thread.spawn(connect__maby_sslhandshake__send__receive__setkeepalive), and keepalive on OpenResty 1.21.4.1. Compare the first and second reads and capture the returned data, err/partial, and socket-busy state; done means the return behavior is established or a minimal reproducer identifies it.
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Assessment
- Tech stack
- lua, nginx
- Domain
- networking
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100