| Commit message (Collapse) | Author | Age | Files | Lines |
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According to POSIX, a signal sent to a PID can be delivered to an
arbitrary thread of that process that hasn't the signal blocked. This
seens to never happen on Linux, but would mess things up since the code
expected the main signal handler to only be executed by the main thread.
This should now be fixed by examining the destination PID of the signal
as well as the ID of the thread currently running the signal handler. If
we notice the signal wasn't sent by our own PID and the handler is not
currently run by the main thread, we re-send the signal to the main
thread. Otherwise, if the signal was sent by our own PID but the handler
is not run in the main thread, do nothing. This way we can use
pthread_kill() to wake up threads that might be stuck in a blocking
syscall when it's time to shut down.
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Just assume sane platforms offer smart mutexes
that have a fast-path with spinlocks internally
for locks that have little to no congestion.
In all other cases, mutexes should perform better
anyways.
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replace epoll with poll.
We now don't assume that a signal equals a single fd (eventfd on Linux).
The next step would be to create a version of signal.c that uses a pipe
internally, so it can be used on other platforms, like *BSD.
This is also the reason epoll was replaced with poll in uplink.c
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- Added message type parameter
- Log to file and stdout, no more logging in memory
- Added options to server.conf to filter which messages show up where
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Some minor debugging code, mostly commented out
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condition in uplink_init
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