* libutils must be used as a static library when compiled on host
* Host does not have Android system properties and hence we cannot
use <cutils/properties.h>. In fact, properties.cpp is not even
compiled on host for libcutils. Therefore, this CL adds a check
for __ANDROID__ macro before including <sys/propoerties.h> and
before calling properties_get_bool()
* On host, statsd logging will be disabled since host does not
use statsd for anything
Fixes: 121294178
Test: test drive statsd
Change-Id: I838ff02468c650c5f7d85e68fa5008b98f08ce8c
This CL changes the relevant cpp files to c files. And added functionalities to reset the log
context for reuse.
Background:
+ lmkd doesn't use the generated statslog code because:
1. lmkd doesn't want to create a 4K log context for each log. lmkd is single threaded and can
reuse the same log context.
2. lmkd is written in c, and the existing statslog.h/.cpp are not compatible
Bug: 78603347
Test: manually tested with alloc-stress
Change-Id: Ife6f5c69248ecf5af730269e67f229ba4c72f37f
+ Reuse the log_event_list from liblog. StatsLog's binary format remains unchanged
+ Copied socket write code from liblog, including the retry logic.
+ Added build flags to control the StatsLog channel (logd, statsd, or both for debugging)
Bug: 78239479
Test: locally tested and saw logs being written to statsd
Change-Id: I7b1f0069ead00bbf3c29e4bd5b7f363a7ce26abe
+ A state change atom can have one exclusive state field, and any
number of primary key fields.
When there is primary key in the atom, it means the state belongs to the primary key.
For example,
message UidProcessStateChanged {
optional int32 uid = 1 [(stateFieldOption).option = PRIMARY];
optional android.app.ProcessStateEnum state = 2 [(stateFieldOption).option = EXCLUSIVE];
}
When there is no primary key fields in the atom, the state is global.
For example,
message ScreenStateChanged {
optional android.view.DisplayStateEnum state = 1 [(stateFieldOption).option = EXCLUSIVE];
}
+ The annotation is consumed by stats_log_api_gen to generate a static map from the state
atoms to its primary fields, and exclusive fields
+ stats_log.proto is splitted into 2 proto files, because statsd needs proto lite, and c++
lite proto library cannot properly ignore the field options which requires full proto.
This CL doesn't change any logic in the statsd yet. A separate CL will use the field option
information to correctly track the state.
Test: added unit tests in stats_log_api_gen_test. and statsd_test pases.
Change-Id: I9e8a979fe81ba60efd4d854bb7087ce4b2b147ec
Both native and java bindings.
TODOs:
- Finish WorkSources.
- Clean up the package names for the protos.
- Put the protos in a more suitable location.
Test: stats-log-api-gen-test
Change-Id: Idf4022225e2be05106dbcf7de8e97a3337fc63e2
