reattach to the syslog-ng console from syslog-ng-ctl #326
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scratch_buffers_lazy_update_stats() uses the ivykis time state to check if it is time to update the stats about scratch buffers. Do not do that if ivykis is not initialized. This may happen in control threads and the debugger threads that do use scratch buffers but don't use ivykis. Signed-off-by: Balazs Scheidler <[email protected]>
A better solution would be to have a connection specific worker list, and a list of connections. But for now this suffices for my purposes of being able to cancel connection specific workers. Signed-off-by: Balazs Scheidler <[email protected]>
Up to now, control worker threads were only cancelled at exit. Truth be told we never really detected if the peer has disconnected either. This patch implements thread cancellation whenever a connection closes, to detect the closure of the connection comes in a separate patch. Signed-off-by: Balazs Scheidler <[email protected]>
Signed-off-by: Balazs Scheidler <[email protected]>
This will be used to pass over the stdio file descriptors from syslog-ng-ctl so we can attach to the syslog-ng process after it was started in the background. Signed-off-by: Balazs Scheidler <[email protected]>
Signed-off-by: Balazs Scheidler <[email protected]>
Signed-off-by: Balazs Scheidler <[email protected]>
This new command allows to reconnect the stdio streams even if syslog-ng runs in the background. syslog-ng-ctl will be able to pass 3 fds to the syslog-ng process, which will be duplicated into the standard fds and with that syslog-ng will happily start displaying its stdout to that terminal. The ATTACH command itself is threaded and the control socket is only used to indicate that the peers are still alive. syslog-ng will start sending "ALIVE" messages to this stream every second or so. If sending this packet is not successful, the connection is closed and the thread is cancelled. Upon cancellation, the stdio fds are restored to point to /dev/null. Signed-off-by: Balazs Scheidler <[email protected]>
Signed-off-by: Balazs Scheidler <[email protected]>
…ssages Signed-off-by: Balazs Scheidler <[email protected]>
Signed-off-by: Balazs Scheidler <[email protected]>
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This PR allows syslog-ng-ctl to connect back to syslog-ng's original stdin/out/err fds and re-acqiure the output on those fds.
There are three subcommands:
The other allows you to steal the log messages:
The other allows you to start the debugger on the new console:
There can only be one such attached process at any time.