Commit Briefs
fix gotd segfault in libevent while disconnecting clients
Sending a DISCONNECT message to the repo process and then killing it and freeing its structure won't work. The message ends up on internal libevent queues and will soon crash because we have freed the memory for the event structre. Sending that message is a leftover from the times when the repo procs were persistent.
fix gotd and gotsh usage() function declaration
"function declaration isn't a prototype" should fix the error seen by tracey@ on sparc64
make gotd parent dispatch handlers more robust during teardown
We have observed gotd exiting after "cannot find client for fd N" errors. If this occurs then we are likely in the process of disconnecting a client session while processing an event from a child process. Treat the above error as non-fatal and stop processing more events from the child process.
gotd: disconnect on client EOF too
Otherwise gotd keeps the (client-closed) sockets around and may prevent new connections from being established since they still count for the limits. ok jamsek, stsp
gotd: move socket path check to parse.y and error from the main process
It's handy to have a "bad unix socket path" error being reported directly from the main process since can get caught by `gotd -n'. ok jamsek stsp
gotd: move nrepos check to parse_config
ok jamsek stsp
gotd: print configuration errors without -d
Defer the absolute path check on argv[0] and log_init so that it becomes possible to run `gotd -n' to check the configuration file and get errors without specifying -d. Erorrs in the configuration now are actually always printed regardless of -d. While here also tweak an error message and print 'configuration OK' if -n ok stsp@
update client state tracking in the gotd parent process
The session process takes over the old state definitions under a new name ("session state"). The parent only needs to keep track of whether a client has been granted access, so it only uses two states: NEW, and ACCCESS_GRANTED which is set as soon as the auth process has granted repository access and before the session and repo_read/repo_write children are started. Because 'gotctl info' can no longer observe the session state remove support code for printing it. ok op@
remove support for showing client capabilities in 'gotctl info'
The gotd parent process has lost access to client capabilities. Take the easy way out and remove related code. If needed, client capabilities can still be found in the debug log with 'gotd -v'. ok op, jamsek