traced_probes: Add ProcessStatsDataSource
ProcessStatsDataSource should be able to write metadata for processes
which are created while a trace is running. To do this it needs to live
as long as the trace does so this change creates a
ProcessStatsDataSource to mirror the Sink and InodeFileMapDataSource
that exist for the ftrace and inode datasources.
This also pulls ProcessStatsDataSource and associated logic into its
own class: ProbesProducer is getting too big. Finally it adds the
boilerplate for testing ProcessStatsDataSource - but no actual tests.
There is some additional work required to add tests (e.g. creating a
fake TraceWriter impl) and that shouldn't block progress on
ProcessStatsDataSource.
Bug: 73058765
Change-Id: I2bf68166711289df081edd4ee3375b6fd77f4bb0
diff --git a/Android.bp b/Android.bp
index 15f4e94..aad645f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -61,6 +61,7 @@
"src/protozero/scattered_stream_writer.cc",
"src/traced/probes/probes.cc",
"src/traced/probes/probes_producer.cc",
+ "src/traced/probes/process_stats_data_source.cc",
"src/traced/service/service.cc",
"src/tracing/core/chrome_config.cc",
"src/tracing/core/commit_data_request.cc",
@@ -276,6 +277,7 @@
"src/protozero/proto_utils.cc",
"src/protozero/scattered_stream_writer.cc",
"src/traced/probes/probes_producer.cc",
+ "src/traced/probes/process_stats_data_source.cc",
"src/tracing/core/chrome_config.cc",
"src/tracing/core/commit_data_request.cc",
"src/tracing/core/data_source_config.cc",
@@ -3108,6 +3110,8 @@
"src/ipc/test/ipc_integrationtest.cc",
"src/ipc/unix_socket.cc",
"src/ipc/unix_socket_unittest.cc",
+ "src/process_stats/file_utils.cc",
+ "src/process_stats/procfs_utils.cc",
"src/protozero/message.cc",
"src/protozero/message_handle.cc",
"src/protozero/message_handle_unittest.cc",
@@ -3120,6 +3124,9 @@
"src/protozero/test/protozero_conformance_unittest.cc",
"src/traced/probes/filesystem/fs_mount.cc",
"src/traced/probes/filesystem/fs_mount_unittest.cc",
+ "src/traced/probes/probes_producer.cc",
+ "src/traced/probes/process_stats_data_source.cc",
+ "src/traced/probes/process_stats_data_source_unittest.cc",
"src/tracing/core/chrome_config.cc",
"src/tracing/core/commit_data_request.cc",
"src/tracing/core/data_source_config.cc",