You're supposed to .lock() instead of TOCTOU checking, of course.
Not sure what I was thinking when I built that. .lock() returns a
default constructed std::shared_ptr on error, which is `false` via
`operator bool`.
this massively improves thread safety and cleanly serializes accesses
into the lua engine's result objects where accesses before were
extremely unsafe and could access a corrupt/invalid stack.
this fixes various obscure crashes related to accessing results,
without changing any observable behavior.
between the time we check for `is_open` and the actual disconnect, the
socket could already have been disconnected by another thread (TOCTOU).
Furthermore, the disconnects can race causing a segfault or similar
issue in the asio's internals.
this was exhausting file descriptors with enough concurrent reads, from
what I can tell. Either way, spawning a new OS thread per read is not
the way.
Because this is so critical, I added unit-tests for that behavior.
this happens when, somehow, the client disconnects before we get here.
I had this happen when breaking in the debugger and continuing, which
leads to clients timing out (client-side timeouts).
When Acceptor.accept() returns an error (e.g., "Too many open files"),
the server was continuing to process an invalid socket, causing resource
leaks and potential infinite error loops.
Add continue statement to skip processing when accept() fails, allowing
the server to retry on the next iteration instead of crashing.
Fixes resource exhaustion DoS vulnerability where server would enter
error loop instead of handling gracefully.
Converts the vehicle stored client side from a raw string to parsed json
data. This allows us to more easily edit the vehicle state serverside,
which I've started using in this PR for updating the state after a paint
packet.
---
By creating this pull request, I understand that code that is AI
generated or otherwise automatically generated may be rejected without
further discussion.
I declare that I fully understand all code I pushed into this PR, and
wrote all this code myself and own the rights to this code.
This PR adds an "I" packet which returns the server information. This
can be used by external programs and the launcher to get information
about a server without having to connect it to. It can be toggled in the
config and in lua.
With this PR, returning 2 in onPlayerAuth will allow the player to join
without checking if the server is full. This makes it easier for plugin
developers to allow for example their staff to join without having to
change the max player count.
Adds `post*` events which are triggered after the respective `on*` event
has completed and the results have been sent.
They have the same arguments as the `on*` function, with the exception
that another argument is added in the beginning which contains whether
the `on*` variant was cancelled.