This change reworks the AssetProcessor's FileWatcher so that it only uses
one thread. This is motivated by getting better support for inotify on
Linux. The previous architecture required calling `inotify_init` once for
each directory that was being watched, and using separate inotify instances
for each watched tree. In addition, having separate threads per watched
tree is not necessary, and just consumes system resources. Each platform
supports watching multiple directories with the same platform-specific
watcher API, so each platform has been updated accordingly.
The interface to the FileWatcher class is greatly simplified. Previously,
it supported client-supplied filtering of the paths that would generate
notifications. This was done by subclassing `FolderWatchBase` and
implementing `OnFileChange`. However, only one filter was ever used, so
that filter is now hard-coded in the FileWatcher class, and the classes
driving the old filtering mechanism are removed. Users of the interface
now have a much easier time, they just call `AddFolderWatch` with the path
to watch, and only have to connect to one set of signals, instead of
separate signals per watched directory.
Signed-off-by: Chris Burel <burelc@amazon.com>
* Adds simple stats tracking to AssetProcessor
The system captures cumulative and individual processing times.
It avoids touching any part of the app which affects decision
making or flow, or altering any structures such as JobEntry which
are involved in processing, in order to keep it as simple and
small as possible.
Signed-off-by: lawsonamzn <70027408+lawsonamzn@users.noreply.github.com>
* Final update copyright headers to reference license files at the repo root
Signed-off-by: spham <spham@amazon.com>
* Fix copyright validator unit tests to support the stale O3DE header scenario
Signed-off-by: spham <spham@amazon.com>
Chris Burel
amzn-mike
Gene Walters
Nicholas Lawson
Steve Pham
sharmajs-amzn
alexpete