When StatsCompanion informs statsd that an anomaly alarm has fired,
statsd will need to check to see whether an anomaly has indeed occurred.
This will require determining which anomaly alarms have times in the
past (since that indicates that the anomaly did indeed occur). This
capability is now added.
Test: adb shell data/nativetest64/statsd_test/statsd_test
Change-Id: I5464c94634df70832d2723d8c4718277776d58aa
Added .clang-format, because there isn't an official .clang-format file for Android framework code.
before we upload changes, do:
clang-format -style=file -i [file list]
to format the files that you touched.
Test: formatting only. NO code changes.
Change-Id: I90e87f1ee6618da8ea9bc2221c609c415a4046a8
Statsd code now lives in android::os::statsd namespace. Existing files
are largely modified to follow this convention.
Exception: parse_util, since it seems a bit different.
Test: code compiles and existing statsd_tests still pass
Change-Id: Idf92a071b9ed172d01eb3087a4fa3609d67a038c
If statsd or statsdcompanion crashes, or if one loads
before the other, the other will be able to accomodate.
When statsd loads, it will attempt to tell statscompanion that it's
alive, and then get on to its business, while assuming that
statscompanion is not alive. Only when statscompanion tells statsd
that it is alive, statsd will then start to use it.
When statscompanion loads, it will attempt to tell statsd that it's
alive and then do nothing (since it has nothing to do). When statsd
tells statscompanion that statsd is alive, statscompanion will respond,
telling statsd that it is alive and, if that binder call returns, will
get to work.
This way, if statsd loads first, it can work unobstructed until
statscompanion informs statsd that it is alive, at which point they
shake hands and work. Conversely, if statscompanion loads first, it will
do nothing until statsd contacts it, at which point they will shake
hands and work.
Test: manual
Change-Id: I969ad47fb8060e27814d05ad37433a02711cfa6a
Created a new class, indexed_priority_queue, which is a priority queue
that allows the removal of elements (other than just the top element).
This is required for AnomalyMonitor, which will henceforth use it.
Some tests for this new class are included.
I have only implemented the methods in indexed_priority_queue that are
currently needed. For example, pop_top() has not been written as
AnomalyMonitor does not need it.
Test: adb shell data/nativetest64/statsd_test/statsd_test
Change-Id: I82fe220ee5a879189b0cfa03b551c829cfdd05f0
Created AnomalyMonitor in statsd, which can monitor statsd's internal
anomaly alarms and register the soonest one with the
StatsCompanionService.
This cl introduces the AnomalyMonitor and allows it to register alarms.
It does not yet allow for the removal of internal alarms.
Test: manually added alarms and ensured they were correctly registered
in StatsCompanionService
Change-Id: Iff324c73751c4f43b1507dc64649b50ac388adef
