view tests/test-inotify-issue1208.t @ 16414:e8d37b78acfb

parsers: use base-16 trie for faster node->rev mapping

This greatly speeds up node->rev lookups, with results that are
often user-perceptible: for instance, "hg --time log" of the node
associated with rev 1000 on a linux-2.6 repo improves from 0.3
seconds to 0.03.  I have not found any instances of slowdowns.

The new perfnodelookup command in contrib/perf.py demonstrates the
speedup more dramatically, since it performs no I/O.  For a single
lookup, the new code is about 40x faster.

These changes also prepare the ground for the possibility of further
improving the performance of prefix-based node lookups.

  $ "$TESTDIR/hghave" inotify || exit 80
  $ echo "[extensions]" >> $HGRCPATH
  $ echo "inotify=" >> $HGRCPATH
  $ p="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  $ hg init $p
  $ cd $p

fail

  $ ln -sf doesnotexist .hg/inotify.sock
  $ hg st
  abort: inotify-server: cannot start: .hg/inotify.sock is a broken symlink
  inotify-client: could not start inotify server: child process failed to start
  $ hg inserve
  abort: inotify-server: cannot start: .hg/inotify.sock is a broken symlink
  [255]
  $ rm .hg/inotify.sock

inserve

  $ hg inserve -d --pid-file=hg.pid
  $ cat hg.pid >> "$DAEMON_PIDS"

status

  $ hg status
  ? hg.pid

if we try to start twice the server, make sure we get a correct error

  $ hg inserve -d --pid-file=hg2.pid
  abort: inotify-server: cannot start: socket is already bound
  abort: child process failed to start
  [255]
  $ kill `cat hg.pid`